Shell assembly, display module and display equipment

Abstract

The utility model discloses a shell assembly, a display module and display equipment, and relates to the technical field of display equipment, the shell assembly comprises a back plate, a rear shell and a separation structure, the rear shell covers the back plate, and the rear shell and the back plate enclose to form a mounting cavity; the separation structure is arranged in the mounting cavity so as to separate the mounting cavity into a plurality of independent accommodating cavities, the plurality of accommodating cavities are used for mounting a plurality of modules, and each accommodating cavity is provided with a heat dissipation hole group for communicating with the outside; according to the technical scheme provided by the utility model, after a plurality of modules are mounted in the corresponding accommodating cavities, independent heat dissipation can be realized without being influenced by hot air flow generated by the lower modules and the lamp panel, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display equipment, and in particular to a shell component, a display module and a display equipment. Background Art

[0002] Mini LED is currently the most popular display mode in the display industry. It forms a full backlight effect based on the dense LED matrix arrangement inside the module, making the display brighter and the picture clearer. However, while this type of product has great advantages, it also comes with some problems, such as heat dissipation. Mini LED has a full backlight effect. The light board is made up of multiple pieces and fully covers the inner surface of the back panel. Each light board contains a socket for signal and current transmission. Openings are designed at the corresponding positions of the back panel lamp holders to avoid the lamp holders and allow wiring. In order to ensure the integrity and safety of the display device, a back shell needs to be set to cover and shield it. Covering the back shell is not conducive to air circulation on the back panel.

[0003] Since Mini LED is fully backlit, densely packed lamp beads are attached to the surface of the back panel. When in operation, the temperature of the entire back panel is very high. The traditional heat dissipation hole solution is to design heat dissipation holes only on the top and bottom. After the air enters from the bottom, it is heated by the baking of the back panel. After that, it is heated step by step through each module. The air will gradually rise. The closer the module is to the top, the worse the heat dissipation effect will be, which seriously affects the function, life, quality, etc. of the components. Utility Model Content

[0004] The main purpose of the utility model is to propose a shell assembly, a display module and a display device, which aims to solve the problem of heat dissipation difficulty caused by assembling the back panel and the rear shell of densely arranged Mini LEDs.

[0005] To achieve the above object, the utility model provides a housing assembly, comprising:

[0006] Back panel;

[0007] a rear shell, which is covered on the back plate and forms a mounting cavity together with the back plate; and

[0008] A partition structure is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities. The plurality of accommodating cavities are used for installing a plurality of modules, and each of the accommodating cavities is provided with a heat dissipation hole group for communicating with the outside.

[0009] In one embodiment, the partition structure includes a plurality of ribs protruding from the rear shell toward the back plate, the plurality of ribs extending along the length direction of the back plate and spaced apart in the width direction of the back plate to divide the installation cavity into a plurality of the accommodating cavities.

[0010] In one embodiment, each of the convex ribs is formed with a heat dissipation channel extending along its extension direction, and a heat dissipation port is provided on a side wall of the heat dissipation channel away from the back plate so as to connect the heat dissipation channel with the outside;

[0011] The heat dissipation hole group is arranged on a side wall of the heat dissipation channel in the width direction of the back plate, so as to connect the heat dissipation channel with the accommodating cavity.

[0012] In one embodiment, a plurality of grooves extending along the length direction of the back plate are concavely provided on a side of the rear shell away from the back plate, and the plurality of grooves are arranged at intervals along the width direction of the back plate, and each of the grooves is a concave area on one side of the rear shell away from the back plate, and forms a convex area on the other side, and the convex area forms the convex rib;

[0013] The heat dissipation channel includes a recessed area of ​​the groove on a side of the rear shell away from the back plate;

[0014] The heat dissipation hole group is arranged on a side wall of the groove in the width direction of the back plate.

[0015] In one embodiment, each of the grooves has a first groove wall and a second groove wall which are sequentially arranged along the width direction of the back plate and connected to each other, the first groove wall extends along the thickness direction of the back plate, and the second groove wall is arranged as an arc-shaped surface concave toward the back plate;

[0016] The heat dissipation hole group is arranged on the first slot wall.

[0017] In one embodiment, the heat dissipation hole group includes a plurality of air inlet holes spaced apart along the length direction of the back plate, the plurality of air inlet holes are arranged on the first slot wall, and the second slot wall is located at the lower side of the first slot wall;

[0018] The heat dissipation hole group further includes a plurality of air outlet holes spaced apart along the length direction of the back plate, the plurality of air outlet holes are arranged on the first slot wall, and the second slot wall is located on the upper side of the first slot wall.

[0019] In one embodiment, each of the convex ribs is provided with at least one partition on a side surface in the width direction of the back panel, and the partition extends along the width direction of the back panel to divide the accommodating cavity into a plurality of accommodating cells spaced along the length direction of the back panel, and each of the accommodating cells is provided with the heat dissipation hole group on both side walls in the width direction of the back panel.

[0020] In one embodiment, a support rib extending along the length direction of the back plate is protruded from the side of the rear shell facing the back plate, the dimension of the support rib in the thickness direction of the back plate is h, the dimension of the installation cavity in the thickness direction of the back plate is H, and h>H.

[0021] The utility model further provides a display module, the display module comprising a housing assembly, the housing assembly comprising:

[0022] Back panel;

[0023] a rear shell, which is covered on the back plate and forms a mounting cavity together with the back plate; and

[0024] A partition structure is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities. The plurality of accommodating cavities are used for installing a plurality of modules, and each of the accommodating cavities is provided with a heat dissipation hole group for communicating with the outside.

[0025] The utility model further provides a display device, the display device comprising a display module, the display module comprising:

[0026] Back panel;

[0027] a rear shell, which is covered on the back plate and forms a mounting cavity together with the back plate; and

[0028] A partition structure is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities. The plurality of accommodating cavities are used for installing a plurality of modules, and each of the accommodating cavities is provided with a heat dissipation hole group for communicating with the outside.

[0029] In the technical solution of the utility model, the shell assembly includes a back plate, a rear shell and a partition structure. The rear shell cover is arranged on the back plate and enclosed with the back plate to form an installation cavity; the partition structure is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities, and the plurality of accommodating cavities are used for installing a plurality of modules, and each of the accommodating cavities is provided with a heat dissipation hole group for connecting to the outside. The partition structure is arranged in the installation cavity formed by the back plate and the rear shell to divide the installation cavity into a plurality of independent accommodating cavities. By arranging the heat dissipation hole group in each of the accommodating cavities, each of the accommodating cavities can dissipate heat independently. In this way, after the plurality of modules are installed in the corresponding accommodating cavities, independent heat dissipation can be achieved without being affected by the hot air flow generated by the lower module and the light board, so as to improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of an embodiment of a housing assembly provided by the utility model;

[0032] Figure 2 for Figure 1 a cross-sectional view of the middle housing assembly;

[0033] Figure 3 for Figure 1 Schematic diagram of the structure of the middle and rear shell;

[0034] Figure 4 for Figure 3 A cross-sectional view of the middle and rear shell;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the mid-back plate.

[0036] Description of Figure Numbers:

[0037] 100. Shell assembly; 1. Back plate; 2. Back shell; 21. Groove; 21a. Recessed area; 21b. Raised area; 211. First groove wall; 212. Second groove wall; 22. Support ribs; 3. Partition structure; 31. Raised ribs; 311. Heat dissipation channel; 312. Partition; 32. Limiting ribs; 4. Accommodating cavity; 41. Accommodating unit cell; 5. Heat dissipation hole group; 51. Air inlet; 52. Air outlet.

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] Mini LED is currently the most popular display mode in the display industry. It forms a full backlight effect based on the dense LED matrix arrangement inside the module, making the display brighter and the picture clearer. However, while this type of product has great advantages, it also comes with some problems, such as heat dissipation. Mini LED has a full backlight effect. The light board is made up of multiple pieces and fully covers the inner surface of the back panel. Each light board contains a socket for signal and current transmission. Openings are designed at the corresponding positions of the back panel lamp holders to avoid the lamp holders and allow wiring. In order to ensure the integrity and safety of the display device, a back shell needs to be set to cover and shield it. Covering the back shell is not conducive to air circulation on the back panel.

[0043] Since Mini LED is fully backlit, densely packed lamp beads are attached to the surface of the back panel. When in operation, the temperature of the entire back panel is very high. The traditional heat dissipation hole solution is to design heat dissipation holes only on the top and bottom. After the air enters from the bottom, it is heated by the baking of the back panel. After that, it is heated step by step through each module. The air will gradually rise. The closer the module is to the top, the worse the heat dissipation effect will be, which seriously affects the function, life, quality, etc. of the components.

[0044] In view of this, the utility model proposes a shell assembly, in which the partition structure is arranged in the installation cavity formed by the back plate and the rear shell, so as to divide the installation cavity into multiple independent accommodating cavities, and the heat dissipation hole group is arranged in each of the accommodating cavities so that each of the accommodating cavities can independently dissipate heat. In this way, after multiple modules are installed in the corresponding accommodating cavities, independent heat dissipation can be achieved without being affected by the hot air flow generated by the lower module and the light board, so as to improve the heat dissipation effect. Figures 1 to 5 FIG. 1 is an embodiment of the housing assembly proposed by the present invention.

[0045] See also Figure 1 and Figure 2, the housing assembly 100 proposed in the utility model includes a back plate 1, a rear shell 2 and a partition structure 3, wherein the rear shell 2 is covered with the back plate 1 and enclosed with the back plate 1 to form an installation cavity; the partition structure 3 is arranged in the installation cavity to separate the installation cavity into a plurality of independent accommodating cavities 4, and the plurality of accommodating cavities 4 are used for installing a plurality of modules, and each of the accommodating cavities 4 is provided with a heat dissipation hole group 5 for connecting to the outside. It should be noted that the plurality of modules include a mainboard, a power supply, a constant current board, a camera and a speaker, wherein the mainboard, the power supply, the constant current board, the camera and the speaker are installed on the back plate 1 and are located in the corresponding accommodating cavities 4 to achieve independent installation and independent heat dissipation.

[0046] In the technical solution of the utility model, the housing assembly 100 includes a back plate 1, a rear shell 2 and a partition structure 3. The rear shell 2 is covered with the back plate 1 and enclosed with the back plate 1 to form an installation cavity; the partition structure 3 is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities 4. The plurality of accommodating cavities 4 are used for installing a plurality of modules, and each of the accommodating cavities 4 is provided with a heat dissipation hole group 5 for connecting to the outside. The partition structure 3 is arranged in the installation cavity formed by the back plate 1 and the rear shell 2 to divide the installation cavity into a plurality of independent accommodating cavities 4. By arranging the heat dissipation hole group 5 in each of the accommodating cavities 4, each of the accommodating cavities 4 can dissipate heat independently. In this way, after the plurality of modules are installed in the corresponding accommodating cavities 4, they can dissipate heat independently without being affected by the hot air flow generated by the lower module and the light board, thereby improving the heat dissipation effect.

[0047] The partition structure 3 is arranged in the installation cavity to form a plurality of independent accommodation spaces, so that a plurality of modules can be installed and dissipated independently. Figure 3 The partition structure 3 includes a plurality of convex ribs 31 protruding from the side of the rear shell 2 facing the back plate 1. The plurality of convex ribs 31 extend along the length direction of the back plate 1 and are arranged at intervals in the width direction of the back plate 1 to divide the installation cavity into a plurality of accommodating cavities 4. By providing a plurality of convex ribs 31, the installation cavity is further divided into a plurality of accommodating cavities 4 that are arranged in sequence and are independent of each other along the width direction of the back plate 1, and each accommodating cavity 4 is connected to the outside through the heat dissipation hole group 5 provided thereon, so that each module can be installed and dissipated independently without being affected by the hot air flow generated by the lower module and the light board, thereby improving the heat dissipation effect.

[0048] Specifically, in this embodiment, please refer to Figure 5The partition structure 3 also includes two limiting ribs 32 protruding from the back plate 1 toward the side of the rear shell 2. The two limiting ribs 32 extend along the width direction of the back plate 1 and are located on both sides of the multiple convex ribs 31 along the length direction of the back plate 1 to jointly define the multiple accommodating cavities 4. By arranging the two limiting ribs 32 on the back plate 1, on the one hand, after the rear shell 2 is assembled with the back plate 1, the two limiting ribs 32 together with the plurality of convex ribs 31 separate the installation cavity formed between the back plate 1 and the rear shell 2, thereby obtaining a plurality of independent accommodating cavities 4; on the other hand, when the rear shell 2 is assembled with the back plate 1, the two limiting ribs 32 may contact the two side edges of the rear shell 2 in the length direction of the back plate 1 (the rear shell 2 has a accommodating cavity with an opening toward the back plate 1) to roughly position the rear shell 2 and prevent the rear shell 2 from shifting when being assembled with the back plate 1, so as to facilitate the connection and fixation of the rear shell 2 with the back plate 1 by screws, thereby improving the assembly efficiency of the rear shell 2 and the back plate 1.

[0049] By providing the heat dissipation hole group 5 in each of the accommodating cavities 4, each of the accommodating cavities 4 can be connected to the outside to achieve independent heat dissipation. Figure 1 and Figure 3 Each of the convex ribs 31 is formed with a heat dissipation channel 311 extending along its extension direction. A heat dissipation port is provided on the side wall of the heat dissipation channel 311 away from the back plate 1, so that the heat dissipation channel 311 is connected to the outside. The heat dissipation hole group 5 is provided on a side wall of the heat dissipation channel 311 in the width direction of the back plate 1, so that the heat dissipation channel 311 is connected to the accommodating cavity 4. By providing the heat dissipation channel 311 connected to the outside in each of the convex ribs 31, and providing the heat dissipation hole group 5 for connecting the heat dissipation channel 311 with the accommodating cavity 4 on the wall surface of the heat dissipation channel 311, the accommodating cavity 4 is connected to the outside, so as to achieve independent heat dissipation.

[0050] The specific arrangement of the convex rib 31 is not limited, and may be a hollow convex rib 31 on the side of the back plate 1 facing the rear shell 2, or a hollow convex rib 31 on the side of the rear shell 2 facing the back plate 1, or a groove 21 on the side of the rear shell 2 facing away from the back plate 1, and the concave area of ​​the groove 21 forms a bulge on the side of the rear shell 2 facing the back plate 1, thereby forming a convex rib 31. In this embodiment, please refer to Figure 1 and Figure 3The side of the rear shell 2 away from the back plate 1 is provided with a plurality of grooves 21 extending along the length direction of the back plate 1, and the plurality of grooves 21 are arranged at intervals along the width direction of the back plate 1, and each of the grooves 21 forms a recessed area 21a on the side of the rear shell 2 away from the back plate 1, and forms a raised area 21b on the other side, and the raised area 21b forms the convex rib 31; the heat dissipation channel 311 includes the recessed area 21a of the groove 21 on the side of the rear shell 2 away from the back plate 1; and the heat dissipation hole group 5 is arranged on a side wall of the groove 21 in the width direction of the back plate 1. By recessing the groove 21 on the side of the rear shell 2 away from the back plate 1, and making the recessed area 21a of the groove 21 form a raised area 21b on the side of the rear shell 2 facing the back plate 1, and then forming the convex rib 31, the manufacturing material of the rear shell 2 is saved, and the weight of the rear shell 2 is reduced.

[0051] In this example, see Figure 3 and Figure 4 Each of the grooves 21 has a first groove wall 211 and a second groove wall 212 which are sequentially arranged and connected to each other along the width direction of the back plate 1, the first groove wall 211 extends along the thickness direction of the back plate 1, and the second groove wall 212 is set as an arc-shaped surface concave toward the back plate 1; the heat dissipation hole group 5 is set on the first groove wall 211. By setting the first groove wall 211 as a plane extending along the thickness direction of the back plate 1, setting the second groove wall 212 as an arc-shaped surface concave toward the back plate 1, and setting the heat dissipation hole group 5 on the first groove wall 211, it is convenient for gas to enter and exit the accommodating cavity 4 to achieve heat dissipation. The second groove wall 212 is an arc-shaped surface with an airflow guiding function, so that the external cold air can better enter the accommodating cavity 4, or the hot air flow generated by the accommodating cavity 4 can flow in a direction away from the rear shell 2.

[0052] In this example, see Figure 4The heat dissipation hole group 5 includes a plurality of air inlet holes 51 spaced apart along the length direction of the back plate 1, the plurality of air inlet holes 51 are arranged on the first groove wall 211, and the second groove wall 212 is located at the lower side of the first groove wall 211; the heat dissipation hole group 5 also includes a plurality of air outlet holes 52 spaced apart along the length direction of the back plate 1, the plurality of air outlet holes 52 are arranged on the first groove wall 211, and the second groove wall 212 is located at the upper side of the first groove wall 211. The air inlet 51 and the air outlet 52 are respectively provided on the two side walls of the accommodating chamber 4 in the width direction of the back plate 1, so that convection can be realized to further improve the heat dissipation effect of the accommodating chamber 4, wherein, when the air inlet 51 is provided on the first groove wall 211, the second groove wall 212 is located at the lower side of the first groove wall 211, so that the external cold air is guided by the second groove wall 212 so that the external cold air can smoothly enter the accommodating chamber 4; when the air outlet 52 is provided on the first groove wall 211, the second groove wall 212 is located on the upper side of the first groove wall 211, so that the hot air generated by the accommodating chamber 4 is guided by the second groove wall 212 so that the hot air flow can flow in the direction away from the rear shell 2, so that the hot air flow is converted into cold air with lower temperature after a large-scale multi-directional gas exchange outside the rear shell 2, and then flows into the accommodating chamber 4 located on the upper side, so as to avoid the hot air discharged from the accommodating chamber 4 on the lower side affecting the heat dissipation effect of the accommodating chamber 4 on the upper side.

[0053] By further dividing the accommodating chamber 4, the modules can be independently installed and heat-dissipated. Figure 3 , each of the convex ribs 31 is provided with at least one partition 312 on one side in the width direction of the back plate 1, and the partition 312 extends in the width direction of the back plate 1 to divide the accommodating cavity 4 into a plurality of accommodating cells 41 spaced along the length direction of the back plate 1, and each of the accommodating cells 41 is provided with the heat dissipation hole group 5 on both side walls in the width direction of the back plate 1. By further dividing the accommodating cavity 4 to form the accommodating cells 41 with smaller spaces, the modules can be independent of each other, and further, the heat dissipation hole group 5 is provided on both side walls in the width direction of the back plate 1 of each of the accommodating cells 41 to increase the gas flow speed in the accommodating cells 41, thereby improving the heat dissipation effect.

[0054] In order to prevent the residual stress inside the rear shell 2 from being irregularly released due to thermal expansion and contraction, resulting in irregular wave deformation, thereby squeezing the space of the accommodating cavity 4, affecting the air circulation inside the accommodating cavity 4, and affecting the heat dissipation, a support structure is provided on the rear shell 2. In this embodiment, please refer to Figure 4The side of the rear shell 2 facing the back plate 1 is convexly provided with a support rib 22 extending along the length direction of the back plate 1, the dimension of the support rib 22 in the thickness direction of the back plate 1 is h, the dimension of the installation cavity in the thickness direction of the back plate 1 is H, and h>H. By setting the dimension h of the support rib 22 in the thickness direction of the back plate 1 to be larger than the dimension H of the installation cavity in the thickness direction of the back plate 1, after the rear shell 2 and the back plate 1 are installed, the support rib 22 can slightly lift up a part of the rear shell 2 to form a micro-arc surface (visually invisible), and the micro-arc surface generates uniform inward unidirectional internal stress to balance the supporting force, thereby effectively counteracting the complex stress of thermal expansion and contraction, maintaining a stable shape and stable heat dissipation. The specific setting position of the support rib 22 is not limited, and the support rib 22 can be set on the side of the back plate 1 facing the rear shell 2, or on the side of the rear shell 2 facing the back plate 1. When the support rib 22 is set on the rear shell 2, the support rib 22 can be set on the convex rib 31 on the rear shell 2, and the support rib 22 is located on the side of the convex rib 31 facing the back plate 1. The support rib 22 can also be set at other positions on the rear shell 2 other than the convex rib 31.

[0055] The present invention further proposes a display module, which includes a shell assembly 100. The specific structure of the shell assembly 100 refers to the above embodiments. Since the display module of the present invention adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0056] In addition, the utility model also proposes a display device, which includes a display module. The specific structure of the display module refers to the above-mentioned embodiments. Since the display device of the utility model adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0057] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A housing assembly for a display device, characterized in that: The housing assembly comprises: Back panel; a rear shell, which is covered on the back plate and forms a mounting cavity together with the back plate; and A partition structure is arranged in the installation cavity to divide the installation cavity into a plurality of independent accommodating cavities. The plurality of accommodating cavities are used for installing a plurality of modules, and each of the accommodating cavities is provided with a heat dissipation hole group for communicating with the outside.

2. The housing assembly according to claim 1, wherein: The partition structure includes a plurality of convex ribs protruding from the rear shell toward the back plate, the plurality of convex ribs extending along the length direction of the back plate and spaced apart in the width direction of the back plate to divide the installation cavity into a plurality of the accommodating cavities.

3. The housing assembly according to claim 2, wherein: Each of the convex ribs is formed with a heat dissipation channel extending along its extension direction, and a side wall of the heat dissipation channel away from the back plate is provided with a heat dissipation port for connecting the heat dissipation channel with the outside; The heat dissipation hole group is arranged on a side wall of the heat dissipation channel in the width direction of the back plate, so as to connect the heat dissipation channel with the accommodating cavity.

4. The housing assembly according to claim 3, characterized in that: A plurality of grooves extending along the length direction of the back plate are formed on one side of the rear shell away from the back plate, and the plurality of grooves are arranged at intervals along the width direction of the back plate, and each of the grooves is a recessed area on one side of the rear shell away from the back plate, and forms a raised area on the other side, and the raised area forms the convex rib; The heat dissipation channel includes a recessed area of ​​the groove on a side of the rear shell away from the back plate; The heat dissipation hole group is arranged on a side wall of the groove in the width direction of the back plate.

5. The housing assembly according to claim 4, characterized in that: Each of the grooves has a first groove wall and a second groove wall which are sequentially arranged along the width direction of the back plate and connected to each other, the first groove wall extends along the thickness direction of the back plate, and the second groove wall is arranged as an arc-shaped surface concave toward the back plate; The heat dissipation hole group is arranged on the first slot wall.

6. The housing assembly according to claim 5, characterized in that: The heat dissipation hole group includes a plurality of air inlet holes spaced apart along the length direction of the back plate, the plurality of air inlet holes are arranged on the first slot wall, and the second slot wall is located at the lower side of the first slot wall; The heat dissipation hole group further includes a plurality of air outlet holes spaced apart along the length direction of the back plate, the plurality of air outlet holes are arranged on the first slot wall, and the second slot wall is located on the upper side of the first slot wall.

7. The housing assembly according to claim 2, wherein: Each of the convex ribs is provided with at least one partition on a side surface in the width direction of the back plate, and the partition extends along the width direction of the back plate to divide the accommodating cavity into a plurality of accommodating cells spaced along the length direction of the back plate, and each of the accommodating cells is provided with the heat dissipation hole group on both side walls in the width direction of the back plate.

8. The housing assembly according to claim 1, wherein: A support rib extending along the length direction of the back plate is protruded from one side of the rear shell toward the back plate, the dimension of the support rib in the thickness direction of the back plate is h, the dimension of the installation cavity in the thickness direction of the back plate is H, and h>H.

9. A display module, characterized in that: Comprising a housing assembly as claimed in any one of claims 1 to 8.

10. A display device, characterized in that: Comprising the display module as claimed in claim 9.

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