Television

Abstract

The television comprises a display module, a backboard, a rear shell, a circuit board and a flame-retardant fireproof cover, the backboard covers the back face of the display module, the rear shell is arranged on the side, away from the display module, of the backboard, and the circuit board is arranged on the side, away from the display module, of the backboard and located between the backboard and the rear shell. The flame-retardant fireproof cover is arranged between the back plate and the rear shell and covers the circuit board, the projection area of the flame-retardant fireproof cover on the back plate is smaller than that of the rear shell on the back plate, the flame-retardant grade of the material of the rear shell is lower than that of the flame-retardant fireproof cover, and the material of the rear shell is a flame-retardant material. The flame retardant grade is configured to be a grade which is measured according to the same standard and is arranged according to a descending order of fireproof performance from high to low. According to the utility model, the circuit board is covered by the flame-retardant fireproof cover with a smaller size, so that the safety certification requirement is met, the rear shell can be made of a low-cost material with a lower flame-retardant grade, and the overall cost of the television can be greatly reduced.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a television set. Background Technology

[0002] With the continuous innovation and development of science and technology, televisions have become an indispensable household product in people's lives.

[0003] As one of the exterior protective components of a television, the back cover is often made of plastic to achieve aesthetics, reduce weight, and lower costs. However, the circuit boards inside the television generate a lot of heat during operation, which can pose a potential ignition point.

[0004] Therefore, controlling production costs while ensuring that the back cover meets relevant security standards plays an important role in improving the competitiveness of television products. Utility Model Content

[0005] This application discloses a television set that can improve the flame retardant properties of the television set while reducing its production cost.

[0006] To achieve the above objectives, some embodiments of this application disclose a television set, the television set comprising:

[0007] Display module;

[0008] A back panel that covers the back of the display module;

[0009] The rear shell is disposed on the side of the back panel opposite to the display module;

[0010] A circuit board, the circuit board being disposed on the side opposite to the display module and located between the back plate and the rear cover; and,

[0011] A flame-retardant fireproof cover, wherein the projected area of ​​the flame-retardant fireproof cover on the back plate is smaller than the projected area of ​​the rear shell on the back plate, and the flame-retardant fireproof cover is disposed between the back plate and the rear shell, and the flame-retardant fireproof cover covers the circuit board.

[0012] Wherein, the flame retardant rating of the material of the rear shell is lower than that of the material of the flame retardant fireproof cover, and the material of the rear shell is a flame retardant material, and the flame retardant rating is configured as: a rating arranged in descending order of fire resistance performance according to the same standard.

[0013] In some embodiments of the television set described in this application, a high-flame-retardant fireproof cover with a high flame-retardant rating is provided on the back panel and the rear shell to cover the circuit board. This eliminates the need for the rear shell to use a high-flame-retardant material while still meeting safety regulations. In other words, in this application, only the high-flame-retardant fireproof cover covering the circuit board can be made of a high-cost, high-flame-retardant material, while the rear shell can be made of a low-cost, lower-flame-retardant material. Since the projected area of ​​the fireproof cover on the back panel is smaller than that of the rear shell, and the size of the fireproof cover is smaller than that of the rear shell, the use of high-cost, high-flame-retardant materials is reduced compared to using the entire rear shell, thereby significantly reducing the overall cost of the television set.

[0014] In addition, since the flame-retardant fireproof cover is placed over the circuit board and the back cover is placed over the flame-retardant fireproof cover, and the back cover is made of flame-retardant material with a lower flame-retardant rating than the flame-retardant fireproof cover, the back cover also has a certain flame-retardant performance. Together with the flame-retardant fireproof cover, it can provide a double flame-retardant effect for the circuit board, improve the flame-retardant performance of the TV, and thus improve the safety of the TV.

[0015] As an optional implementation, in the embodiments of this application, the flame-retardant fireproof cover is installed on the rear shell.

[0016] This allows the flame-retardant fireproof cover and back cover to be assembled in the factory to form prefabricated components, which are then transported to the next factory for assembly with the back panel to form a television set. This effectively simplifies the television assembly process, making the assembly of television sets faster and more efficient.

[0017] As an optional implementation, in an embodiment of this application, the flame-retardant fireproof cover includes:

[0018] A cover plate, the cover plate being disposed on the side of the circuit board opposite to the back plate, and the cover plate being connected to the rear housing; and

[0019] A base plate, which is bent and extended from the bottom edge of the cover plate toward the back plate;

[0020] The television set also includes a flame-retardant elastic layer, which is disposed between the base plate and the back plate and is pressed together by the base plate and the back plate.

[0021] In this way, when the flame-retardant fireproof cover shifts due to the deformation of the rear shell, causing the gap between the bottom plate and the back plate to increase, the flame-retardant elastic layer will adapt by deforming and expanding, filling and blocking the gap between the bottom plate and the back plate. The flame-retardant elastic layer is used to isolate and delay the flame, preventing the flame from spreading from the gap between the bottom plate and the back plate, thus ensuring that even if the gap between the bottom plate and the back plate increases, it still meets the safety requirements.

[0022] As an optional implementation, in an embodiment of this application, the back plate is provided with a first connecting portion, the rear shell is provided with a second connecting portion, the second connecting portion and the first connecting portion are connected in cooperation, and the second connecting portion and the first connecting portion are located on the side of the bottom plate away from the circuit board.

[0023] This configuration, with the first and second connecting parts positioned close to the flame-retardant elastic layer, enhances the structural stability of the rear shell and back plate near the flame-retardant elastic layer. This prevents deformation in this area and minimizes the risk of the rear shell deforming and bulging, causing the flame-retardant fireproof cover to shift and increasing the gap between the bottom plate and the back plate. Even if the rear shell deforms, the first and second connecting parts can still move the back plate together. In this case, the back plate will push the flame-retardant fireproof cover and the flame-retardant elastic layer to shift together, thus ensuring that the gap between the bottom plate and the back plate remains as constant as possible. This ensures that the gap between the flame-retardant fireproof cover and the back plate meets safety regulations.

[0024] As an optional implementation, in the embodiments of this application, the base plate is provided with a first latching part, the rear shell is provided with a second latching part, the second latching part and the first latching part are engaged, and the first latching part and the second latching part are located on the side of the base plate away from the circuit board;

[0025] The cover plate is provided with a first through hole, the rear shell is provided with a first threaded hole, and the television set also includes a first threaded locking member, which passes through the first through hole and is threadedly connected to the first threaded hole.

[0026] With this configuration, the flame-retardant fireproof cover can be installed on the rear shell by snap-fit, and / or the flame-retardant fireproof cover can be installed on the rear shell by screwing.

[0027] Preferably, the flame-retardant fireproof cover is installed on the rear shell by snap-fit ​​and screw-fit, which allows at least two connection points to be formed between the flame-retardant fireproof cover and the rear shell. For example, at least one connection point is formed at the snap-fit ​​point between the flame-retardant fireproof cover and the rear shell, and at least one connection point is formed at the screw-fit point between the flame-retardant fireproof cover and the rear shell. This helps to improve the connection stability between the flame-retardant fireproof cover and the rear shell, and avoids the flame-retardant fireproof cover from becoming loose and detaching from the rear shell during the process of transporting the flame-retardant fireproof cover together with the rear shell to the next assembly process (i.e., the process of assembling with the back panel). At the same time, whether it is snap-fit ​​or screw-fit, the connection method is relatively simple and facilitates the assembly between the flame-retardant fireproof cover and the rear shell.

[0028] As an optional implementation, in the embodiments of this application, one of the flame-retardant fireproof cover and the rear shell is provided with a first positioning part, and the other of the flame-retardant fireproof cover and the rear shell is provided with a first mating part. The first mating part is connected to the first positioning part, and the first mating part and the first positioning part are located on the side of the base plate away from the circuit board.

[0029] The first positioning part and the first mating part cooperate to provide initial positioning for the fixed connection of the flame-retardant fireproof cover and the rear shell, which helps to improve the assembly efficiency of the flame-retardant fireproof cover and the rear shell; at the same time, since the first positioning part and the first mating part are located on the side of the base plate away from the circuit board, the probability of flames falling to the first positioning part and the first mating part can be reduced by the base plate and the flame-retardant elastic layer.

[0030] As an optional implementation, in an embodiment of this application, the flame-retardant fireproof cover is mounted on the back plate.

[0031] This design prevents the flame-retardant fireproof cover from shifting due to subsequent shell deformation, ensuring that the gap between the flame-retardant fireproof cover and the back panel remains unchanged after the television is assembled. Consequently, the gap between the flame-retardant fireproof cover and the back panel can be maintained within the range that meets safety regulations, thereby improving the safety of the television.

[0032] In addition, when the flame-retardant and fireproof cover is used to cover the drive board, it also makes it easier to organize the drive board's wiring, making the wiring layout neater and avoiding wiring chaos.

[0033] As an optional implementation, in the embodiments of this application, the back plate has a guide boss protruding on the surface facing the flame-retardant fireproof cover, and in the direction from the back plate to the flame-retardant fireproof cover, the outer peripheral side of the guide boss gradually slopes from the back plate toward the center of the guide boss to form a first guide slope.

[0034] The flame-retardant and fireproof cover includes:

[0035] A cover plate is disposed on the side of the circuit board opposite to the back plate, and the cover plate is connected to the rear shell;

[0036] A base plate, the base plate being bent and extended from the bottom edge of the cover plate toward the back plate; and,

[0037] A connecting plate is provided, which extends from the side of the base plate away from the cover plate in a direction away from the cover plate, and the connecting plate is provided with a second guide slope that fits against the first guide slope.

[0038] This design allows for the extension of a connecting plate while using the base plate to prevent flames from falling, providing a position for the guiding design of the flame-retardant fireproof cover. This facilitates the formation of a second guide slope on the flame-retardant fireproof cover, which cooperates with the first guide slope. Thus, during the assembly of the flame-retardant fireproof cover to the back plate, the first and second guide slopes work together to provide guidance for the assembly of the flame-retardant fireproof cover and the back plate, making the assembly of the two parts convenient.

[0039] As an optional implementation, in an embodiment of this application, the connecting plate includes a first plate, a second plate, and a third plate. The first plate extends from the side of the base plate away from the cover plate, bent away from the cover plate. The second plate extends from the side of the first plate away from the base plate, bent away from the base plate. The third plate extends from the side of the second plate away from the first plate, bent away from the first plate. A recess is formed on the surface of the third plate facing the back plate, moving away from the back plate. A second guide slope is formed on the groove wall of the recess. Alternatively,

[0040] The connecting plate has a guide rib protruding from its surface facing the back plate, and the second guide slope is formed on the guide rib.

[0041] Therefore, the formation of the second guide slope is not limited to a specific form. It can be formed by setting a recessed part and using the groove wall of the recessed part, or by setting a protruding guide rib and using the guide rib to form the second guide slope. This makes the formation of the second guide slope more flexible, reduces the limitations of the formation of the second guide slope, and facilitates the formation of the second guide slope.

[0042] As an optional implementation, in the embodiments of this application, when the guide rib is protruding from the surface of the connecting plate facing the back plate;

[0043] The connecting plate also has reinforcing ribs protruding from its surface facing the back plate, and these reinforcing ribs are angled relative to the guide ribs; and / or

[0044] The base plate has a reinforcing rib protruding from its surface facing the circuit board, and the reinforcing rib extends to connect with the guide rib.

[0045] This design allows for the reinforcement of the guide ribs, enhancing their structural strength and extending their service life.

[0046] As an optional implementation, in the embodiments of this application, the connecting plate is provided with a second through hole, the guide boss is provided with a second threaded hole, and the television set further includes a second threaded locking member, which passes through the second through hole and is threadedly connected to the second threaded hole.

[0047] Due to the guide boss, the thickness of the guide boss on the back plate is greater than that of other parts of the back plate. The second threaded hole is formed on the guide boss, which can increase the depth of the second threaded hole. This allows the depth of the second threaded hole to be increased without increasing the thickness of the back plate, thereby increasing the screwing area of ​​the second threaded hole and the second threaded locking part, which in turn helps to improve the connection stability between the flame-retardant fireproof cover and the back plate.

[0048] As an optional implementation, in an embodiment of this application, the flame-retardant fireproof cover includes:

[0049] A cover plate, the cover plate being disposed on the side of the circuit board opposite to the back plate, and the cover plate being connected to the rear housing; and

[0050] A base plate, which extends and bends from the bottom edge of the cover plate toward the back plate;

[0051] The top, left, and right edges of the cover plate are spaced apart from the back plate to form openings, and the bottom plate is provided with heat dissipation holes that extend through its thickness direction.

[0052] This design allows the circuit board to dissipate heat through both openings and ventilation holes, while using the base plate to prevent flames from falling. This better avoids the problem of short circuits caused by overheating of the circuit board during operation, thus improving the safety of the circuit board.

[0053] Compared with the prior art, the present invention has the following advantages:

[0054] The television provided in this application embodiment, due to the safety specifications of the circuit board, covers the circuit board with a flame-retardant fireproof cover with a high flame-retardant rating on the back panel and the rear shell. This eliminates the need for the rear shell to use a high flame-retardant material while still meeting safety specifications. In other words, in this application, only the flame-retardant fireproof cover covering the circuit board can use a high-cost flame-retardant material with a high flame-retardant rating, while the rear shell can use a low-cost flame-retardant material with a lower flame-retardant rating. Since the projected area of ​​the flame-retardant fireproof cover on the back panel is smaller than that of the rear shell, and the size of the flame-retardant fireproof cover is smaller than that of the rear shell, compared to using a high-cost flame-retardant material for the entire rear shell, the use of high-cost flame-retardant material with a high flame-retardant rating is reduced, thereby significantly reducing the overall cost of the television.

[0055] In addition, since the flame-retardant fireproof cover is placed over the circuit board and the back cover is placed over the flame-retardant fireproof cover, and the back cover is made of flame-retardant material with a lower flame-retardant rating than the flame-retardant fireproof cover, the back cover also has a certain flame-retardant performance. Together with the flame-retardant fireproof cover, it can provide a double flame-retardant effect for the circuit board, improve the flame-retardant performance of the TV, and thus improve the safety of the TV. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1 This is a schematic diagram of the structure of a television set disclosed in an embodiment of this application;

[0058] Figure 2 This is the television set disclosed in the embodiments of this application. Figure 1 The first type of sectional view along the AA direction;

[0059] Figure 3 This is the television set disclosed in the embodiments of this application. Figure 1 The second type of sectional view in the AA direction;

[0060] Figure 4 This is a schematic diagram of the structure of the flame-retardant and fireproof cover installed on the rear shell, as disclosed in the embodiments of this application;

[0061] Figure 5 yes Figure 4 A magnified view of point M in the image;

[0062] Figure 6 yes Figure 4 A magnified view of point N in the image;

[0063] Figure 7 yes Figure 4 A schematic diagram of the structure of the flame-retardant and fireproof cover in the middle;

[0064] Figure 8 This is a schematic diagram of the structure of the rear shell disclosed in the embodiments of this application;

[0065] Figure 9 This is a schematic diagram of the first structure of the flame-retardant and fireproof cover installed on the back plate as disclosed in the embodiments of this application;

[0066] Figure 10 yes Figure 9 A schematic diagram of the structure of the flame-retardant and fireproof cover in the middle;

[0067] Figure 11 yes Figure 9A schematic diagram of the backplate structure;

[0068] Figure 12 This is a schematic diagram of the second structure of the flame-retardant and fireproof cover installed on the back plate as disclosed in the embodiments of this application;

[0069] Figure 13 yes Figure 12 A schematic diagram of the backplate structure;

[0070] Figure 14 yes Figure 12 A schematic diagram of the structure of the flame-retardant and fireproof cover in the middle;

[0071] Figure 15 yes Figure 12 The structural diagram of the flame-retardant and fireproof cover in the middle is shown from another perspective.

[0072] Explanation of main figure symbols

[0073] 100-Television set; 11-Display module; 11a-Display surface; 11b-Back panel; 12-Back plate; 121-First connecting part; 122-Fourth snap-fit ​​part; 123-Second threaded hole; 124-Guide boss; 1241-First guide slope; 125-Second mating part; 13-Rear shell; 131-Second connecting part; 132-Second snap-fit ​​part; 133-First threaded hole; 134-First mating part; 14-Circuit board; 15-Flame-retardant fireproof cover; 15a-Cover plate; 15b-Base plate; 15c - Opening; 15d - Receiving cavity; 15e - Heat dissipation hole; 15f - Connecting plate; 15f1 - First plate; 15f2 - Second plate; 15f3 - Third plate; 151 - First snap-fit ​​part; 152 - First through hole; 153 - First positioning part; 154 - Third snap-fit ​​part; 155 - Second through hole; 156a - Recessed part; 156b - Guide rib; 156c - Reinforcing rib; 1561 - Second guide slope; 157 - Second positioning part; 158 - Cable management groove; 16 - Flame-retardant elastic layer. Detailed Implementation

[0074] To make the objectives, technical solutions, and advantages of this application clearer, the exemplary embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments. That is, the specific embodiments described herein are merely used to explain this application and are not intended to limit this application.

[0075] It should be noted that the brief descriptions of terminology used in this application are merely for the purpose of facilitating understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0076] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0077] The terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first connecting portion may be referred to as a second connecting portion, and similarly, a second connecting portion may be referred to as a first connecting portion. Both the first connecting portion and the second connecting portion are connecting portions, but they are not the same connecting portion.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0079] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0080] In the description of this application, it should be noted that the singular forms of "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that terms such as "comprising / including" or "having" specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof.

[0081] In addition, the term "and / or" as used in this specification includes any and all combinations of the related listed items. For example, A and / or B can mean: A alone, A and B together, or B alone. That is, the term "and / or" as used in this specification includes any and all combinations of the related listed items.

[0082] With continuous innovation and development in science and technology, televisions, as a type of mass-market, traditional household product among consumer electronics, have gradually become an indispensable part of people's lives. In a market environment of constant technological and service innovation, maintaining product competitiveness is crucial for preserving brand market share. As one of the protective components of a television's exterior, controlling production costs while ensuring the back cover meets relevant security standards plays a vital role in enhancing the competitiveness of television products.

[0083] In response to this, related technologies typically focus on the material selection for the back cover to balance cost and safety. To reduce the weight of the television and improve its aesthetics, these technologies often use plastic materials for the back cover.

[0084] However, the circuit boards in a television set generate a lot of heat during operation, which can be a potential ignition point. When the circuit of the television set malfunctions and heats up, the heat may accumulate to a certain level and cause the circuit board to catch fire, which may further ignite the plastic back cover or internal parts, and may even cause a fire.

[0085] Furthermore, the back cover in related technologies is usually a one-piece structure for ease of assembly, meaning that only one type of material can typically be used for the entire back cover. However, to meet safety certification requirements, the entire back cover of televisions in these technologies needs to be made of flame-retardant materials with high flame-retardant ratings. These high-flame-retardant materials are relatively expensive, resulting in higher manufacturing costs for televisions.

[0086] However, in practical applications, applicants have found that the material covering the circuit board on the back cover only needs to meet security regulations, while other areas do not need to use materials that meet security regulations. Compared to materials that do not meet security regulations, materials that do meet security regulations are more expensive.

[0087] Therefore, the applicant installed a flame-retardant fireproof cover with a high flame-retardant rating between the back panel and the rear shell to cover the circuit board, so that the rear shell does not need to use flame-retardant materials with a high flame-retardant rating to meet the safety specifications.

[0088] Because the projected area of ​​the flame-retardant fireproof cover on the back panel is smaller than that of the back shell on the back panel, and the size of the flame-retardant fireproof cover is smaller than that of the back shell, compared to using high-cost flame-retardant materials with high flame-retardant ratings for the entire back shell, the use of high-cost flame-retardant materials with high flame-retardant ratings is reduced, thereby significantly reducing the overall cost of the television set.

[0089] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0090] See also Figure 1 , Figure 1 This is an exemplary structural diagram of a television set provided in an embodiment of this application. The television set 100 provided in this embodiment of the application may be a plate-like structure, such as a rectangular columnar structure, a square columnar structure, etc.

[0091] See also Figure 2 The television set 100 provided in this application embodiment includes a display module 11, which has a display surface 11a and a back surface 11b disposed opposite to each other. The display surface 11a of the display module 11 is mainly used for displaying images. The display module 11 may include, but is not limited to, a liquid crystal display (LCD), an organic light-emitting diode display (OLED), or other display screens capable of displaying images. This application does not specifically limit the implementation of such displays.

[0092] In some embodiments, the television set 100 provided in this application also includes a back plate 12, which covers the back side 11b of the display module 11. That is, the back plate 12 is disposed on the rear side of the display module 11, and the back plate 12 locks and fixes the display module 11 from the back side 11b of the display module 11, thereby supporting the display module 11.

[0093] In some embodiments, the television set 100 provided in this application also includes a rear cover 13, which is disposed on the side of the back panel 12 away from the display module 11, and serves a protective and decorative function.

[0094] In some embodiments, the television set 100 provided in this application also includes a circuit board 14, which is disposed on the side of the back plate 12 away from the display module 11 and located between the back plate 12 and the rear cover 13. In this way, the circuit board 14 can be covered by the rear cover 13, which protects the circuit board 14 from water, dust and impact.

[0095] As an example, circuit board 14 can be a power supply board, which is used to connect to an external power source, such as AC mains, to convert 220V AC mains power into power available to other circuit boards 14. Specifically, the power supply board may be equipped with devices such as transformers and rectifiers, and also has live wire terminals and neutral wire terminals respectively connected to the live wire and neutral wire.

[0096] In another exemplary manner, circuit board 14 may be a driver board, which is mainly used to process and drive the display module 11 of television 100 to display images and videos.

[0097] In another exemplary embodiment, circuit board 14 includes a power supply board and a driver board. The power supply board is used to connect to an external power source, such as AC mains, and convert the 220-volt AC mains power into a power source usable by other circuit boards 14. Specifically, the power supply board may be equipped with devices such as transformers and rectifiers, and also has live wire terminals and neutral wire terminals respectively connected to the live wire and neutral wire. The driver board is mainly used to process and drive the display module 11 of the television 100 to display images and videos.

[0098] In this exemplary solution, the flame-retardant fireproof cover 15 includes a first fireproof cover and a second fireproof cover, the first fireproof cover being used to cover the power board and the second fireproof cover being used to cover the drive board.

[0099] See also Figure 2 and Figure 3 The television set 100 provided in this application embodiment also includes a flame-retardant fireproof cover 15. The flame-retardant fireproof cover 15 is disposed between the back panel 12 and the rear shell 13, and the projected area of ​​the flame-retardant fireproof cover 15 on the back panel 12 is smaller than the projected area of ​​the rear shell 13 on the back panel 12. The flame-retardant fireproof cover 15 covers the circuit board 14 so as to isolate and delay the flame when the circuit board 14 catches fire, avoid the spread of the flame, and play a fire protection role. This allows the rear shell 13 to meet safety specifications without having to use flame-retardant materials with high flame-retardant ratings.

[0100] Specifically, the flame retardant rating of the material of the back cover 13 is lower than that of the material of the flame retardant cover 15. That is to say, in this application, only the flame retardant cover 15 covering the circuit board 14 can be made of high-cost flame retardant material with a high flame retardant rating, while the back cover 13 can be made of low-cost flame retardant material with a lower flame retardant rating than the flame retardant cover 15. Since the projected area of ​​the flame retardant cover 15 on the back plate 12 is smaller than that of the back cover 13 on the back plate 12, and the size of the flame retardant cover 15 is smaller than that of the back cover 13, compared to using high-cost flame retardant material with a high flame retardant rating for the entire back cover 13, the use of high-cost flame retardant material with a high flame retardant rating is reduced, thereby significantly reducing the overall cost of the television set 100.

[0101] The flame retardant rating is configured as follows: a rating arranged in descending order of fire resistance performance, determined according to the same standard (e.g., UL94 standard).

[0102] In some embodiments, the material of the back cover 13 is a flame-retardant material with a flame-retardant rating lower than that of the flame-retardant fireproof cover 15, or the flame-retardant rating of the material of the back cover 13 is higher than or equal to the HB level required in the UL94 standard, so that the back cover 13 also has a certain flame-retardant performance. At the same time, since the flame-retardant fireproof cover 15 covers the circuit board 14 and the back cover 13 covers the flame-retardant fireproof cover 15, the circuit board 14 can be provided with a double flame-retardant effect, thereby improving the flame-retardant performance of the television 100 and thus improving the safety of the television 100.

[0103] It should be noted that when this application achieves flame-retardant properties by coating the surface of the flame-retardant fireproof cover 15 or the rear shell 13 with flame-retardant material, the flame-retardant rating of the material of the flame-retardant fireproof cover 15 or the rear shell 13 refers to the flame-retardant rating of the flame-retardant material on the surface of the flame-retardant fireproof cover 15 or the rear shell 13.

[0104] Optionally, the flame retardant rating of the material of the flame-retardant fireproof cover 15 can be V1 or V0 as required by the UL94 standard, and the flame retardant rating of the material of the back shell 13 can be HB (specifically HB75) or V2 as required by the UL94 standard.

[0105] Optionally, the flame-retardant fireproof cover 15 may be made of: acrylonitrile-butadiene-styrene (ABS), a polymer of acrylonitrile-butadiene-styrene and polycarbonate (ABS with added PC, also known as PC+ABS), or a polymer of acrylonitrile-butadiene-styrene and polypropylene (ABS with added PP, also known as PP+ABS), etc. The back cover 13 may be made of: impact-resistant polystyrene (HIPS).

[0106] In some embodiments, combined with Figure 3and Figure 4 As shown, the flame-retardant fireproof cover 15 includes a cover plate 15a and a bottom plate 15b. The cover plate 15a is disposed on the side of the circuit board 14 away from the back plate 12 and is connected to the rear shell 13. The bottom plate 15b is bent and extended from the bottom edge of the cover plate 15a toward the back plate 12 and abuts against the back plate 12 so that the cover plate 15a, the bottom plate 15b and the back plate 12 enclose a receiving cavity 15d with an opening 15c. Specifically, the top edge, left side and right side of the cover plate 15a are all spaced apart from the back plate 12 to form an opening 15c. The circuit board 14 is located in the receiving cavity 15d.

[0107] This design allows the base plate 15b to prevent flames from falling while the circuit board 14 can dissipate heat through the opening 15c, thus avoiding the problem of short circuits caused by overheating of the circuit board 14 during operation and improving the safety of the circuit board 14.

[0108] Furthermore, the base plate 15b is provided with a heat dissipation hole 15e that extends along its thickness direction, and the heat dissipation hole 15e communicates with the receiving cavity 15d.

[0109] With this configuration, the circuit board 14 can dissipate heat through both the opening 15c and the heat dissipation hole 15e, which can better prevent the circuit board 14 from overheating and causing a short circuit during operation, thus improving the safety of the circuit board 14.

[0110] In some embodiments, the flame-retardant fireproof cover 15 further includes a connecting plate 15f, which extends from the side of the bottom plate 15b away from the cover plate 15a in a direction away from the cover plate 15a. The connecting plate 15f and the cover plate 15a are located on different sides of the bottom plate 15b in its thickness direction, so that the flame-retardant fireproof cover 15 is generally Z-shaped, and the connecting plate 15f abuts against the back plate 12.

[0111] Compared to the method of contact between the base plate 15b and the back plate 12, since the base plate 15b is usually thinner, the contact area between the base plate 15b and the back plate 12 is smaller. Therefore, the setting of the connecting plate 15f can increase the contact area between the flame-retardant fireproof cover 15 and the back plate 12, avoid the force of the flame-retardant fireproof cover 15 acting on the back plate 12 being too concentrated, thereby reducing the damage to the back plate 12.

[0112] As an optional implementation method, such as Figure 3 and Figure 4As shown, the flame-retardant fireproof cover 15 can be installed on the rear shell 13. For example, the flame-retardant fireproof cover 15 can be connected to the rear shell 13 through the cover plate 15a and / or the base plate 15b. In this way, the flame-retardant fireproof cover 15 and the rear shell 13 can be assembled in the factory to form a prefabricated component, and then transported to the next factory to be assembled with the back plate 12 to form the television set 100. This can effectively simplify the assembly process of the television set 100, making the assembly of the television set 100 faster and more efficient.

[0113] When the flame-retardant fireproof cover 15 is installed on the rear shell 13 and the rear shell 13 is exposed, it is easily squeezed and deformed. When the rear shell 13 deforms, the flame-retardant fireproof cover 15 will shift along with the deformation of the rear shell 13, resulting in an increase in the gap between the flame-retardant fireproof cover 15 and the back plate 12, which does not meet the safety requirement that the gap between the flame-retardant fireproof cover 15 and the back plate 12 is less than 1mm.

[0114] In some embodiments, the television set 100 provided in this application also includes a flame-retardant elastic layer 16, such as flame-retardant foam or flame-retardant sponge. The flame-retardant elastic layer 16 is disposed between the flame-retardant fireproof cover 15 and the back panel 12, and the flame-retardant elastic layer 16 is pressed by the flame-retardant fireproof cover 15 and the back panel 12. Specifically, the flame-retardant elastic layer is disposed between the bottom plate 15b and the back panel 12, and is pressed by the bottom plate 15b and the back panel 12.

[0115] Thus, when the flame-retardant fireproof cover 15 shifts due to the deformation of the rear shell 13, causing the gap between the bottom plate 15b and the back plate 12 to increase, the flame-retardant elastic layer 16 will adaptively deform and expand, filling and blocking the gap between the bottom plate 15b and the back plate 12. The flame-retardant elastic layer 16 is used to isolate and delay the flame, preventing the flame from spreading from the gap between the bottom plate 15b and the back plate 12, thereby ensuring that even if the gap between the bottom plate 15b and the back plate 12 increases, it still meets the safety requirements.

[0116] Optionally, the flame-retardant elastic layer 16 can be bonded between the base plate 15b and the back plate 12. This configuration provides a stable and reliable connection, is simple and efficient to operate, and facilitates disassembly and replacement.

[0117] In order to better prevent the deformation and bulging of the rear shell 13 from causing the flame-retardant fireproof cover 15 to shift, resulting in a gap between the bottom plate 15b and the back plate 12 being greater than 1mm, which does not meet the safety requirement that the gap between the bottom plate 15b and the back plate 12 be less than 1mm.

[0118] In some embodiments, such as Figure 3 As shown, the back plate 12 is provided with a first connecting part 121, and the rear shell 13 is provided with a second connecting part 131. The second connecting part 131 and the first connecting part 121 are connected in cooperation, and the second connecting part 131 and the first connecting part 121 are located on the side of the bottom plate 15b away from the circuit board 14.

[0119] With this configuration, the first connecting part 121 and the second connecting part 131 are positioned close to the flame-retardant elastic layer 16, which enhances the structural stability of the rear shell 13 and the back plate 12 near the flame-retardant elastic layer 16. This makes the area less prone to deformation and minimizes the possibility of the rear shell 13 deforming and bulging outward, causing the flame-retardant fireproof cover 15 to shift and resulting in an increased gap between the bottom plate 15b and the back plate 12. Even if the rear shell 13 deforms, the first connecting part 121 and the second connecting part 131 can still move the back plate 12 together. At this time, the back plate 12 will push the flame-retardant fireproof cover 15 and the flame-retardant elastic layer 16 to shift together, thereby ensuring that the gap between the bottom plate 15b and the back plate 12 can remain as constant as possible, thus ensuring that the gap between the flame-retardant fireproof cover 15 and the back plate 12 meets the safety requirements.

[0120] In addition, the first connecting part 121 and the second connecting part 131 are located on the side of the base plate 15b facing away from the circuit board 14, so as to avoid interference between the first connecting part 121, the second connecting part 131 and the circuit board 14.

[0121] Optionally, the first connecting part 121 may be a first connecting hole formed on the back plate 12, and the second connecting part 131 may be a second connecting hole formed on the rear shell 13. The second connecting hole and the first connecting hole are locked together by threaded fasteners such as screws or bolts, so that the connection stability between the rear shell 13 and the back plate 12 is relatively high.

[0122] Understandably, in other embodiments, both the first connecting part 121 and the second connecting part 131 are snap-fit ​​structures, in which case the first connecting part 121 and the second connecting part 131 are snap-fit ​​connected.

[0123] In this application, for ease of description, the gap between the base plate 15b and the back plate 12 of the flame-retardant fireproof cover 15 is defined as L. It is understood that the above definition is only for the convenience of description of this application, and should not be used to limit the scope of protection of this application.

[0124] If L < 0.5 mm, the thickness of the flame-retardant elastic layer 16 is too small, resulting in poor flame-retardant performance.

[0125] In some embodiments, L≥0.5mm ensures that the flame-retardant elastic layer 16 has a certain thickness, thereby improving the flame-retardant performance of the flame-retardant elastic layer 16.

[0126] If L > 1mm, the gap between the bottom plate 15b and the back plate 12 of the flame-retardant fireproof cover 15 is too large, which does not meet the safety requirement that the gap between the bottom plate 15b and the back plate 12 of the flame-retardant fireproof cover 15 be less than 1mm.

[0127] In some embodiments, L≤1mm. This configuration ensures that the gap between the bottom plate 15b and the back plate 12 of the flame-retardant fireproof cover 15 meets the safety requirement of less than 1mm. It also allows the flame-retardant elastic layer 16 to have sufficient elastic deformation. When the flame-retardant fireproof cover 15 shifts due to the deformation of the rear shell 13, causing the gap between the bottom plate 15b and the back plate 12 of the flame-retardant fireproof cover 15 to increase, the gap is fully filled and blocked. This better isolates and delays the flame, preventing the flame from spreading through the gap between the bottom plate 15b and the back plate 12 of the flame-retardant fireproof cover 15.

[0128] In some embodiments, 0.5mm ≤ L ≤ 1mm, for example, 0.5mm ≤ L ≤ 0.6mm, 0.6mm ≤ L ≤ 0.7mm, 0.7mm ≤ L ≤ 0.8mm, or 0.9mm ≤ L ≤ 1mm. For example, L = 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, or 1mm, etc.

[0129] This design not only avoids excessive gaps between the base plate 15b and back plate 12 of the flame-retardant fireproof cover 15, ensuring that the gap between them meets the safety requirement of less than 1mm, but also allows the flame-retardant elastic layer 16 to have sufficient elastic deformation. When the flame-retardant fireproof cover 15 shifts due to the deformation of the rear shell 13, causing the gap between the base plate 15b and back plate 12 of the flame-retardant fireproof cover 15 to widen, the gap is fully filled and blocked, thus better isolating and delaying the flame and preventing it from spreading through the gap between the base plate 15b and back plate 12 of the flame-retardant fireproof cover 15.

[0130] In this application, the flame-retardant fireproof cover 15 can be installed on the rear shell 13 by snap-fit, and / or, the flame-retardant fireproof cover 15 can be installed on the rear shell 13 by screwing. That is, the flame-retardant fireproof cover 15 can be installed on the rear shell 13 only by snap-fit, or only by screwing, or the flame-retardant fireproof cover 15 can be installed on the rear shell 13 by a combination of snap-fit ​​and screwing.

[0131] Preferably, such as Figure 4 As shown, the flame-retardant fireproof cover 15 is installed on the rear shell 13 by means of snap-fit ​​and screw connection.

[0132] This arrangement ensures that at least two connection points are formed between the flame-retardant fireproof cover 15 and the rear shell 13. For example, at least one connection point is formed at the snap-fit ​​joint between the flame-retardant fireproof cover 15 and the rear shell 13, and at least one connection point is formed at the screw joint joint between the flame-retardant fireproof cover 15 and the rear shell 13. This helps to improve the connection stability between the flame-retardant fireproof cover 15 and the rear shell 13, and avoids the situation where the flame-retardant fireproof cover 15 becomes loose and detaches from the rear shell 13 during the process of transporting the flame-retardant fireproof cover 15 together with the rear shell 13 to the next assembly process (i.e., the process of assembling with the back plate 12). At the same time, whether it is snap-fit ​​or screw joint, the connection method is relatively simple and facilitates the assembly between the flame-retardant fireproof cover 15 and the rear shell 13.

[0133] Combination Figure 4 and Figure 6 As shown, when the flame-retardant fireproof cover 15 is installed on the rear shell 13 by snap-fit, the bottom plate 15b of the flame-retardant fireproof cover 15 is provided with a first snap-fit ​​part 151, and the rear shell 13 is provided with a second snap-fit ​​part 132. The second snap-fit ​​part 132 and the first snap-fit ​​part 151 are snapped together, thereby realizing the flame-retardant fireproof cover 15 being snapped onto the rear shell 13.

[0134] Furthermore, the first latching part 151 and the second latching part 132 are located on the side of the base plate 15b away from the circuit board, so that the probability of flames falling to the first latching part 151 and the second latching part 132 can be reduced by the base plate 15b and the flame-retardant elastic layer 16.

[0135] Optionally, such as Figure 7 and Figure 8 As shown, both the first latching part 151 and the second latching part 132 can be multiple, such as two, three, four, five, six, seven, eight, etc. For example, in... Figure 7 and Figure 8 The diagram shows that there are seven first latching parts 151 and seven second latching parts 132. Multiple first latching parts 151 are arranged at intervals along the circumference of the flame-retardant fireproof cover 15. Among them, three first latching parts 151 are arranged on the bottom plate 15b and the remaining four first latching parts 151 are arranged on the cover plate 15a. Multiple second latching parts 132 are arranged at intervals along the circumference of the rear shell 13. The multiple second latching parts 132 and the multiple first latching parts 151 are engaged one-to-one.

[0136] The arrangement of multiple first latching parts 151 and multiple second latching parts 132 helps to improve the stability between the flame-retardant fireproof cover 15 and the rear shell 13.

[0137] In this design, one of the first latching part 151 and the second latching part 132 is a latch hook, and the other is a latch groove, for example, Figure 7 and Figure 8As shown, the first latching part 151 is a latch hook, and the second latching part 132 is a latch groove.

[0138] In this application, for ease of description, the effective card combination quantity of the card hook and card slot is defined as D. It is understood that the above definition is only for the convenience of description of this application, and should not be used to limit the scope of protection of this application.

[0139] If D < 1.5mm, the hook is likely to detach from the slot, causing the flame-retardant fireproof cover 15 to detach from the back cover 13.

[0140] In some embodiments, D≥1.5mm, to ensure the stability and reliability of the connection between the hook and the slot, to ensure the connection stability and reliability of the flame-retardant fireproof cover 15 and the rear shell 13, and to prevent the two from becoming loose during the process of turnover to the next process.

[0141] If D > 4.5mm, the size of the hook and slot will be relatively large, which will increase the overall size of the flame-retardant cover 15 and the back cover 13, which is not conducive to the miniaturization design of the TV.

[0142] In some embodiments, D≤4.5mm, so that there is sufficient engagement between the hook and the slot, ensuring the connection stability and reliability of the hook and the slot, and preventing the hook from coming loose from the slot during the material turnover process of the component formed by the flame-retardant fireproof cover 15 and the rear shell 13, which would cause the flame-retardant fireproof cover 15 to detach from the rear shell 13.

[0143] In some embodiments, 1.5mm ≤ D ≤ 4.5mm, for example, 1.5mm ≤ D ≤ 2mm, 2mm ≤ D ≤ 2.5mm, 2.5mm ≤ D ≤ 3mm, 3mm ≤ D ≤ 3.5mm, 3.5mm ≤ D ≤ 4mm, or 4mm ≤ D ≤ 4.5mm. For example, D = 1.5mm, 1.7mm, 2mm, 2.3mm, 2.5mm, 2.8mm, 3mm, 3.3mm, 3.5mm, 3.7mm, 4mm, 4.3mm, or 4.5mm, etc.

[0144] This design ensures sufficient engagement between the hook and slot, guaranteeing the stability and reliability of their connection and improving the stability and reliability of the connection between the flame-retardant cover 15 and the rear shell 13. It also prevents the size of the hook and slot from increasing the overall size of the television, which would be detrimental to the miniaturization design of the television.

[0145] Combination Figure 4 , Figure 7 and Figure 8As shown, when the flame-retardant fireproof cover 15 is installed on the rear shell 13 by means of threaded connection, the flame-retardant fireproof cover 15 is provided with a first through hole 152, the rear shell 13 is provided with a first threaded hole 133, and the television also includes a first threaded locking member (not shown), which passes through the first through hole 152 and is threadedly connected to the first threaded hole 133, thereby realizing the flame-retardant fireproof cover 15 being screwed onto the rear shell 13.

[0146] Optionally, there can be multiple first threaded locking elements, first through holes 152, and first threaded holes 133, such as two, three, four, five, six, seven, eight, etc. For example, in... Figure 7 and Figure 8 The diagram shows that there can be five first through holes 152 and five first threaded holes 133. Multiple first through holes 152 are spaced apart along the circumference of the flame-retardant fireproof cover 15, and multiple first threaded holes 133 are spaced apart along the circumference of the rear shell 13. Multiple first threaded holes 133 and multiple first through holes 152 are arranged one-to-one. Multiple first threaded locking parts pass through the corresponding first through holes 152 and are screwed into the corresponding first threaded holes 133.

[0147] The arrangement of multiple first threaded locking parts, multiple first through holes 152 and multiple first threaded holes 133 helps to improve the stability between the flame-retardant fireproof cover 15 and the rear shell 13.

[0148] The first threaded locking element can be a screw or bolt, etc.

[0149] In some embodiments, combined with Figures 5 to 8 As shown, one of the base plate 15b and the rear shell 13 of the flame-retardant fireproof cover 15 is provided with a first positioning part 153, and the other of the base plate 15b and the rear shell 13 is provided with a first mating part 134. For example, the base plate 15b of the flame-retardant fireproof cover 15 is provided with the first positioning part 153, and the rear shell 13 is provided with the first mating part 134. The first mating part 134 is engaged with the first positioning part 153. The engagement of the first positioning part 153 and the first mating part 134 provides initial positioning for the fixed connection of the flame-retardant fireproof cover 15 and the rear shell 13, thereby improving the assembly efficiency of the flame-retardant fireproof cover 15 and the rear shell 13.

[0150] Meanwhile, since the first positioning part 153 and the first mating part 134 are located on the side of the base plate 15b away from the circuit board, the probability of flames falling onto the first positioning part 153 and the first mating part 134 can be reduced by the base plate 15b and the flame-retardant elastic layer 16.

[0151] Wherein, when the first positioning part 153 is a positioning groove, the first mating part 134 is a positioning protrusion that matches the positioning groove; and when the first positioning part 153 is a positioning protrusion, the first mating part 134 is a positioning groove that matches the positioning protrusion, and the positioning protrusion is inserted into the positioning groove.

[0152] Optionally, there can be multiple first positioning parts 153 and first mating parts 134, such as two, three, four, five, six, seven, eight, etc. For example, in... Figure 7 and Figure 8 The diagram shows that there can be seven first positioning parts 153 and seven first mating parts 134. Multiple first positioning parts 153 are arranged at intervals along the circumference of the flame-retardant fireproof cover 15. Among them, three first positioning parts 153 are arranged on the bottom plate 15b and the remaining four first positioning parts 153 are arranged on the cover plate 15a. Multiple first mating parts 134 are arranged at intervals along the circumference of the rear shell 13. Multiple first mating parts 134 and multiple first positioning parts 153 are connected in a one-to-one correspondence.

[0153] The arrangement of multiple first positioning parts 153 and multiple first mating parts 134 is beneficial to improving the positioning accuracy between the flame-retardant fireproof cover 15 and the rear shell 13.

[0154] When the first latching part 151, the second latching part 132, the first positioning part 153, and the first mating part 134 are all present, and the number of the first latching part 151, the second latching part 132, the first positioning part 153, and the first mating part 134 are the same, a positioning structure (including the first positioning part 153 and the first mating part 134) is provided near each set of latching structures (which includes the first latching part 151 and the second latching part 132) to ensure that the first latching part 151 can be accurately latched with the second latching part 132, thereby ensuring that the first latching part 151 and the second latching part 132 are reliably latched.

[0155] Moreover, it is understood that the height of the positioning protrusion relative to the flame-retardant fireproof cover 15 or the rear shell 13 in this application is greater than the height of the hook relative to the flame-retardant fireproof cover 15 or the rear shell 13, so as to ensure that the positioning protrusion and positioning groove first play a role in the process of assembling the flame-retardant fireproof cover 15 to the rear shell 13, providing initial positioning for the fixed connection of the flame-retardant fireproof cover 15 and the rear shell 13, so as to facilitate the installation of the flame-retardant fireproof cover 15 and the rear shell 13.

[0156] As another alternative implementation method, such as Figure 9 As shown, the flame-retardant fireproof cover 15 can be installed on the back plate 12.

[0157] This design prevents the flame-retardant fireproof cover 15 from shifting due to deformation of the back cover 13, ensuring that the gap between the flame-retardant fireproof cover 15 and the back panel 12 remains unchanged after the television is assembled. Consequently, the gap between the flame-retardant fireproof cover 15 and the back panel 12 can be maintained within the range that meets safety regulations, thereby improving the safety of the television.

[0158] In addition, when the flame-retardant fireproof cover 15 is used to cover the drive board, it also makes it easier to organize the drive board's wiring, making the wiring layout neater and avoiding wiring chaos.

[0159] In this application, the flame-retardant fireproof cover 15 can be installed on the back plate 12 by snap-fit, and / or the flame-retardant fireproof cover 15 can be installed on the back plate 12 by screwing. That is, the flame-retardant fireproof cover 15 can be installed on the back plate 12 by snap-fit ​​alone, or by screwing alone, or by a combination of snap-fit ​​and screwing.

[0160] Preferably, the flame-retardant fireproof cover 15 is installed on the back plate 12 by means of snap-fit ​​and screw connection.

[0161] This arrangement ensures that at least two connection points are formed between the flame-retardant fireproof cover 15 and the back plate 12. For example, at least one connection point is formed at the snap-fit ​​joint between the flame-retardant fireproof cover 15 and the back plate 12, and at least one connection point is formed at the screw joint joint between the flame-retardant fireproof cover 15 and the back plate 12. This helps to improve the connection stability between the flame-retardant fireproof cover 15 and the back plate 12, and avoids the flame-retardant fireproof cover 15 becoming loose and detaching from the back plate 12 during the process of transporting the flame-retardant fireproof cover 15 together with the back plate 12 to the next assembly process (i.e., the process of assembling with the back plate 12). At the same time, whether it is a snap-fit ​​or a screw joint, the connection method is relatively simple, which facilitates the assembly between the flame-retardant fireproof cover 15 and the back plate 12.

[0162] Combination Figures 9 to 11 As shown, when the flame-retardant fireproof cover 15 is installed on the back plate 12 by snap-fit, the flame-retardant fireproof cover 15 is provided with a third snap-fit ​​part 154, and the back plate 12 is provided with a fourth snap-fit ​​part 122. The fourth snap-fit ​​part 122 and the third snap-fit ​​part 154 are snapped together, thereby realizing the flame-retardant fireproof cover 15 being snapped onto the back plate 12.

[0163] Optionally, there can be multiple third latching portions 154 and fourth latching portions 122, such as two, three, four, five, six, seven, eight, etc. For example, in... Figure 10 and Figure 11The diagram shows that there can be two third latching parts 154 and two fourth latching parts 122. Multiple third latching parts 154 are spaced apart on the flame-retardant and fireproof cover 15, and multiple fourth latching parts 122 are spaced apart on the back plate 12. The multiple fourth latching parts 122 and the multiple third latching parts 154 are connected in a one-to-one manner.

[0164] The arrangement of multiple third latching parts 154 and multiple fourth latching parts 122 helps to improve the stability between the flame-retardant fireproof cover 15 and the back plate 12.

[0165] In this design, one of the third latching part 154 and the fourth latching part 122 is a latch hook, and the other is a latch groove, for example, as shown in the image. Figure 10 and Figure 11 As shown, the third latching part 154 is a latch hook, and the fourth latching part 122 is a latch groove.

[0166] Combination Figures 12 to 14 As shown, when the flame-retardant fireproof cover 15 is installed on the back plate 12 by means of threaded connection, the connecting plate 15f of the flame-retardant fireproof cover 15 is provided with a second through hole 155, the back plate 12 is provided with a second threaded hole 123, and the television set 100 also includes a second threaded locking member (not shown). The second threaded locking member passes through the second through hole 155 and is threadedly connected to the second threaded hole 123, thereby realizing the flame-retardant fireproof cover 15 being screwed onto the back plate 12.

[0167] Optionally, there can be multiple second threaded locking elements, second through holes 155, and second threaded holes 123, such as two, three, four, five, six, seven, eight, etc. For example, in... Figure 10 and Figure 11 The diagram shows that both the second through hole 155 and the second threaded hole 123 can be two. Figure 13 and Figure 14 The diagram shows that there can be four second through holes 155 and four second threaded holes 123. Multiple second through holes 155 are spaced apart on the flame-retardant fireproof cover 15, and multiple second threaded holes 123 are spaced apart on the back plate 12. Multiple second threaded holes 123 and multiple second through holes 155 are arranged in a one-to-one correspondence. Multiple second threaded locking parts pass through the corresponding second through holes 155 and are screwed into the corresponding second threaded holes 123 one by one.

[0168] The arrangement of multiple second threaded locking parts, multiple second through holes 155 and multiple second threaded holes 123 helps to improve the stability between the flame-retardant fireproof cover 15 and the back plate 12.

[0169] The second threaded locking element can be a screw or bolt, etc.

[0170] In some embodiments, such as Figure 9 and Figure 11As shown, a guide boss 124 is provided on the surface of the back plate 12 facing the flame-retardant fireproof cover 15. In the direction from the back plate 12 to the flame-retardant fireproof cover 15, the outer peripheral side of the guide boss 124 gradually slopes from the back plate 12 toward the center of the guide boss 124 to form a first guide slope 1241. The connecting plate 15f of the flame-retardant fireproof cover 15 is provided with a second guide slope 1561 that fits against the first guide slope 1241.

[0171] This design allows the base plate 15b to prevent flames from falling while extending the connecting plate 15f to provide a position for the guiding design of the flame-retardant fireproof cover 15. This facilitates the formation of a second guide slope 1561 on the flame-retardant fireproof cover 15, which cooperates with the first guide slope 1241. As a result, during the assembly of the flame-retardant fireproof cover 15 to the back plate 12, the first guide slope 1241 and the second guide slope 1561 can cooperate to provide guidance for the assembly of the flame-retardant fireproof cover 15 and the back plate 12, making the assembly of the two easier.

[0172] An example, such as Figures 9 to 11 As shown, the connecting plate 15f includes a first plate 15f1, a second plate 15f2, and a third plate 15f3. The first plate 15f1 extends from the side of the bottom plate 15b away from the cover plate 15a in a direction away from the cover plate 15a. The second plate 15f2 extends from the side of the first plate 15f1 away from the bottom plate 15b in a direction away from the bottom plate 15b. The third plate 15f3 extends from the side of the second plate 15f2 away from the first plate 15f1 in a direction away from the first plate 15f1. A recess 156a is formed on the surface of the third plate 15f3 facing the back plate 12 in a direction away from the back plate 12. A second guide slope 1561 is formed on the groove wall of the recess 156a.

[0173] Another example, such as Figure 13 and Figure 15 As shown, the connecting plate 15f has a guide rib 156b protruding from its surface facing the back plate 12, and the guide rib 156b forms a second guide slope 1561 that fits against the first guide slope 1241.

[0174] Therefore, the formation of the second guide slope 1561 is not limited to a specific form. It can be formed by setting a recessed portion 156a and using the groove wall of the recessed portion 156a, or by setting a protruding guide rib 156b and using the guide rib 156b to form the second guide slope 1561. This makes the formation of the second guide slope 1561 more flexible, reduces the limitations of the formation of the second guide slope 1561, and facilitates the formation of the second guide slope 1561.

[0175] When the connecting plate 15f has a guide rib 156b protruding from its surface facing the back plate 12, such as Figure 15 As shown, the surface of the connecting plate 15f facing the back plate 12 is also provided with a reinforcing rib 156c, which is set at an angle to the guide rib 156b; and / or, the surface of the bottom plate 15b facing the circuit board is provided with a reinforcing rib 156c, which extends to connect with the guide rib 156b.

[0176] This design allows the reinforcing rib 156c to enhance the structural strength of the guide rib 156b and improve its service life.

[0177] In some embodiments, a second threaded hole 123 is formed on a guide boss 124.

[0178] Due to the presence of the guide boss 124, the thickness of the guide boss 124 on the back plate 12 is greater than that of other parts of the back plate 12. By forming the second threaded hole 123 on the guide boss 124, the depth of the second threaded hole 123 can be increased. This allows for an increase in the depth of the second threaded hole 123 without increasing the thickness of the back plate 12, thereby increasing the threaded area of ​​the second threaded hole 123 and the second threaded locking member. This, in turn, helps to improve the connection stability between the flame-retardant fireproof cover 15 and the back plate 12.

[0179] In some embodiments, one of the flame-retardant fireproof cover 15 and the back plate 12 is provided with a second positioning part 157, and the other of the flame-retardant fireproof cover 15 and the back plate 12 is provided with a second mating part 125. For example, the flame-retardant fireproof cover 15 is provided with the second positioning part 157, and the back plate 12 is provided with the second mating part 125, which is inserted into the second positioning part 157. The cooperation between the second positioning part 157 and the second mating part 125 provides initial positioning for the fixed connection of the flame-retardant fireproof cover 15 and the back plate 12, thereby improving the assembly efficiency of the flame-retardant fireproof cover 15 and the back plate 12.

[0180] When the second positioning part 157 is a positioning groove, the second mating part 125 is a positioning protrusion that matches the positioning groove; and when the second positioning part 157 is a positioning protrusion, the second mating part 125 is a positioning groove that matches the positioning protrusion, and the positioning protrusion is inserted into the positioning groove.

[0181] Optionally, there can be multiple second positioning parts 157 and multiple second mating parts 125, such as two, three, four, five, six, seven, eight, etc. Multiple second positioning parts 157 are spaced apart on the flame-retardant and fireproof cover 15, and multiple second mating parts 125 are spaced apart on the back plate 12. The multiple second mating parts 125 and the multiple second positioning parts 157 are connected in a one-to-one correspondence.

[0182] The arrangement of multiple second positioning parts 157 and multiple second mating parts 125 helps to improve the positioning accuracy between the flame-retardant fireproof cover 15 and the back plate 12.

[0183] In some embodiments, such as Figure 13 and Figure 14 As shown, the flame-retardant and fireproof cover 15 has a cable management groove 158 on the surface facing away from the back panel 12 to facilitate the management of the internal wiring of the television and avoid the wiring from becoming messy.

[0184] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0185] Furthermore, the embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation of this application, and the protection scope of this application should be determined by the appended claims.

Claims

1. A television set, characterized in that, The television set includes: Display module; A back panel that covers the back of the display module; The rear shell is disposed on the side of the back panel opposite to the display module; A circuit board, the circuit board being disposed on the side of the back plate opposite to the display module, and located between the back plate and the rear cover; and, A flame-retardant and fireproof cover is disposed between the back plate and the rear shell, the flame-retardant and fireproof cover covers the circuit board, and the projected area of ​​the flame-retardant and fireproof cover on the back plate is smaller than the projected area of ​​the rear shell on the back plate. The rear shell is made of flame-retardant material, and the flame-retardant rating of the rear shell material is lower than that of the flame-retardant fireproof cover material.

2. The television set according to claim 1, characterized in that, The flame-retardant and fireproof cover is installed on the rear shell.

3. The television set according to claim 2, characterized in that, The flame-retardant and fireproof cover includes: A cover plate, the cover plate being disposed on the side of the circuit board opposite to the back plate, and the cover plate being connected to the rear housing; and A base plate, which is bent and extended from the bottom edge of the cover plate toward the back plate; The cover plate and / or the bottom plate are connected to the rear shell.

4. The television set according to claim 3, characterized in that, The back plate is provided with a first connecting part, and the rear shell is provided with a second connecting part. The second connecting part and the first connecting part are connected in cooperation, and the second connecting part and the first connecting part are located on the side of the bottom plate away from the circuit board.

5. The television set according to claim 3 or 4, characterized in that, The base plate is provided with a first latching part, and the rear shell is provided with a second latching part. The first latching part and the second latching part are engaged and located on the side of the base plate away from the circuit board.

6. The television set according to claim 3 or 4, characterized in that, The cover plate is provided with a first through hole, the rear shell is provided with a first threaded hole, and the television set also includes a first threaded locking member, which passes through the first through hole and is threadedly connected to the first threaded hole.

7. The television set according to claim 3 or 4, characterized in that, One of the flame-retardant fireproof cover and the rear shell is provided with a first positioning part, and the other of the flame-retardant fireproof cover and the rear shell is provided with a first mating part. The first mating part is connected to the first positioning part, and the first mating part and the first positioning part are located on the side of the base plate away from the circuit board.

8. The television set according to claim 3 or 4, characterized in that, The television set also includes a flame-retardant elastic layer, which is disposed between the base plate and the back plate and is pressed together by the base plate and the back plate.

9. The television set according to claim 1, characterized in that, The flame-retardant fireproof cover is made of a material with a flame-retardant rating of V1 or V0, and the back shell is made of a material with a flame-retardant rating of HB or V2.

10. The television set according to claim 1, characterized in that, The flame-retardant and fireproof cover is installed on the back plate.

11. The television set according to claim 10, characterized in that, The back plate has a guide boss protruding on its surface facing the flame-retardant fireproof cover. In the direction from the back plate to the flame-retardant fireproof cover, the outer peripheral side of the guide boss gradually slopes from the back plate toward the center of the guide boss to form a first guide slope. The flame-retardant and fireproof cover includes: A cover plate is disposed on the side of the circuit board opposite to the back plate, and the cover plate is connected to the rear shell; A base plate, the base plate being bent and extended from the bottom edge of the cover plate toward the back plate; and, A connecting plate is provided, which extends from the side of the base plate away from the cover plate in a direction away from the cover plate, and the connecting plate is provided with a second guide slope that fits against the first guide slope.

12. The television set according to claim 11, characterized in that, The connecting plate includes a first plate, a second plate, and a third plate. The first plate extends from the side of the base plate away from the cover plate, bent away from the cover plate. The second plate extends from the side of the first plate away from the base plate, bent away from the base plate. The third plate extends from the side of the second plate away from the first plate, bent away from the first plate. A recess is formed on the surface of the third plate facing the back plate, moving away from the back plate. A second guide slope is formed on the groove wall of the recess. Alternatively... The connecting plate has a guide rib protruding from its surface facing the back plate, and the second guide slope is formed on the guide rib.

13. The television set according to claim 12, characterized in that, When the guide rib protrudes from the surface of the connecting plate facing the back plate; The connecting plate also has reinforcing ribs protruding from its surface facing the back plate, and these reinforcing ribs are angled relative to the guide ribs; and / or The base plate has a reinforcing rib protruding from its surface facing the circuit board, and the reinforcing rib extends to connect with the guide rib.

14. The television set according to any one of claims 11-13, characterized in that, The connecting plate is provided with a second through hole, the guide boss is provided with a second threaded hole, and the television set also includes a second threaded locking member, which passes through the second through hole and is threadedly connected to the second threaded hole.

15. The television set according to claim 1, characterized in that, The flame-retardant and fireproof cover includes: A cover plate, the cover plate being disposed on the side of the circuit board opposite to the back plate, and the cover plate being connected to the rear housing; and A base plate, which extends and bends from the bottom edge of the cover plate toward the back plate; The top, left, and right edges of the cover plate are spaced apart from the back plate to form openings, and the bottom plate is provided with heat dissipation holes that extend through its thickness direction.

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