Display module, display device and household appliance

Abstract

The invention discloses a display module, a display device and a household appliance. The display module comprises a shell, a diaphragm and a pressing plate. The housing has a first wall surface. The diaphragm is connected to the first wall surface and comprises a main body part and an extending part which are connected with each other, and the extending part comprises a second wall surface deviating from the first wall surface. The pressing plate is attached to the second wall face and connected to the shell, and the pressing plate and the shell jointly clamp the extending part. The first wall face deviates from the second wall face, the pressing plate is attached to the second wall face, that is, the pressing plate is arranged on the side, deviating from the shell, of the diaphragm, the pressing plate is further connected to the shell, and then the diaphragm is clamped between the pressing plate and the shell. Compared with the prior art, the production efficiency of the display module can be effectively improved, the function of protecting the circuit can be achieved, on one hand, the pressing plate can better protect the circuit when the extending part is pulled, and on the other hand, the pressing plate can provide better moisture-proof protection for the extending part through large-area coverage.

Description

Technical Field

[0001] The present invention relates to the field of electrical appliance technology, and in particular to a display module, a display device and a household appliance. Background Art

[0002] Household appliances are often equipped with display panels. The graphic display module of the display panel is often integrally injection molded with the touch circuit, and the circuit of the touch circuit is led out through the outlet of the display module. After the internal circuit of the graphic touch circuit is led out from the display module, in order to prevent the position of the lead-out circuit from changing during use, it is often necessary to fix the lead-out circuit to the display module. In the prior art, the lead-out circuit is often fixed to the display module by gluing the lead-out circuit. During processing, the glue needs to be stable before entering the next processing step. Since it takes a long time for the glue to solidify and stabilize, waiting for the glue to solidify will seriously reduce the production efficiency of the appliance, which is not conducive to mass production. Summary of the invention

[0003] On one hand, the present invention provides a display module, which can quickly fix an extension portion to a housing, thereby improving the production efficiency of the display module.

[0004] To achieve the above object, the present invention proposes a display module, which includes a housing, a diaphragm and a pressure plate. The housing has a first wall surface, the diaphragm is connected to the first wall surface, the diaphragm includes a main body portion and an extension portion connected to each other, and the extension portion includes a second wall surface away from the first wall surface. The pressure plate is attached to the second wall surface and connected to the housing, and the pressure plate and the housing jointly clamp the extension portion.

[0005] In some embodiments, the pressing plate includes a first end and a second end that are arranged oppositely, the direction along the extension portion pointing to the main body portion is the first direction, the direction parallel to the second wall surface and perpendicular to the first direction is the second direction, and the extension portion includes a first side edge and a second side edge that are opposite to each other along the second direction. The first end edge is located on a side of the first side edge that is away from the second side edge, and the second end edge is located on a side of the second side edge that is away from the first side edge.

[0006] In some embodiments, the first end and the second end are both connected to the housing.

[0007] In some embodiments, the pressure plate further includes a middle portion that coincides with the protruding portion in a direction perpendicular to the second wall surface, and a width dimension of the middle portion in a direction from the protruding portion to the main body portion is smaller than a width dimension of the first end portion.

[0008] In some embodiments, the pressure plate further includes a middle portion that coincides with the protruding portion in a direction perpendicular to the second wall surface, and a width dimension of the middle portion in a direction from the protruding portion to the main body portion is smaller than a width dimension of the second end portion.

[0009] In some embodiments, the direction from the extension portion to the main body portion is the first direction, and the direction parallel to the second wall surface and perpendicular to the first direction is the second direction. The first wall surface is provided with a first boss and a second boss, the first boss and the second boss are respectively provided on both sides of the extension portion along the second direction, the first end portion is connected to the first boss, and the second end portion is connected to the second boss.

[0010] In some embodiments, the direction from the extension portion to the main body portion is the first direction, and the direction parallel to the second wall surface and perpendicular to the first direction is the second direction. The first wall surface is provided with a first boss and a second boss, and along the second direction, the first boss and the second boss are respectively provided on both sides of the extension portion. The main body portion includes a fourth side edge, the extension portion is connected to the fourth side edge, and the fourth side edge abuts against the first boss and the second boss along the direction from the main body portion to the extension portion.

[0011] In some embodiments, the direction along the extension portion pointing to the main body is the first direction, and the direction parallel to the second wall and perpendicular to the first direction is the second direction. The pressing plate includes a third side facing away from the main body, the third side has a first section that overlaps with the second wall along a direction perpendicular to the second wall, and the length direction of the first section is parallel to the second direction.

[0012] In some embodiments, the main body includes a fourth side, the extension portion is connected to the fourth side, and the first section is parallel to the fourth side.

[0013] In some embodiments, the main body includes a fourth side, and the extension portion is connected to the fourth side. The pressing plate includes a third side away from the main body, and the third side has a first section that overlaps with the second wall surface in a direction perpendicular to the second wall surface. The distance L between the first section and the fourth side meets: 0mm<L≤10mm.

[0014] In some embodiments, the main body includes a fourth side edge, the extension portion is connected to the fourth side edge, and the pressing plate includes a fifth side edge facing the main body, and when viewed in a direction perpendicular to the second wall surface, the fourth side edge is flush with the fifth side edge.

[0015] In some embodiments, the main body includes a fourth side, the extension portion is connected to the fourth side, and the pressing plate includes a fifth side facing the main body, and the fifth side is located on a side of the fourth side away from the extension portion when viewed in a direction perpendicular to the second wall.

[0016] In some embodiments, the housing includes a positioning column, the pressure plate includes a positioning hole, and the positioning column passes through the positioning hole.

[0017] In some embodiments, the pressure plate is welded to the housing.

[0018] In some embodiments, the pressing plate is connected to the shell by heat-fusion, and the melting point of the material of the pressing plate is higher than the melting point of the material of the shell.

[0019] A second aspect of the present invention further provides a display device, which includes the display module of any one of the above embodiments.

[0020] A third aspect of the present invention further provides a household appliance, which comprises a display device.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present application proposes a display module, which includes a shell, a diaphragm and a pressure plate. The shell has a first wall surface. The diaphragm is connected to the first wall surface, and the diaphragm includes a main body and an extension portion connected to each other, and the extension portion includes a second wall surface facing away from the first wall surface. The pressure plate is attached to the second wall surface and connected to the shell, and the pressure plate and the shell jointly clamp the extension portion. The first wall surface faces away from the second wall surface, and the pressure plate is attached to the second wall surface, that is, the pressure plate is arranged on the side of the diaphragm facing away from the shell, and the pressure plate is further connected to the shell, so that the diaphragm is clamped between the pressure plate and the shell. Compared with the prior art method of fixing the extension part with glue which requires a long time to wait for the colloid to solidify, the present application uses a pressure plate and a shell to fix the extension part, which can not only efficiently and quickly fix the extension part to the shell, thereby effectively improving the production efficiency of the display module, but also enable the pressure plate to play a certain protective role on the circuit. The contact surface between the pressure plate and the extension part is large and uniform, the pressure plate has a stronger ability to fix the circuit, and the stress concentration is also significantly reduced. On the one hand, this enables the pressure plate to better protect the circuit when the extension part is pulled, and on the other hand, the large area coverage also enables the pressure plate to provide better moisture-proof protection for the extension part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 An exploded schematic diagram of a display module according to a first embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a pressing plate according to a first embodiment of the present invention;

[0026] Figure 3 It is a front assembly schematic diagram of a display module according to a first embodiment of the present invention;

[0027] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0028] Figure 5 It is a partial schematic diagram of a display module of a second embodiment of the present invention; wherein, two pressing plates are provided;

[0029] Figure 6 This is a partial schematic diagram of a display module of a third embodiment of the present invention; wherein only one end of the pressing plate is fixedly connected to the housing;

[0030] Figure 7 This is a partial schematic diagram of a display module according to a fourth embodiment of the present invention; wherein the length direction of the first section is inclined with respect to the second direction;

[0031] Figure 8 It is a partial schematic diagram of a display module according to a fifth embodiment of the present invention; wherein the fifth side is located on a side of the fourth side away from the protruding portion.

[0032] Description of Figure Numbers:

[0033] Display module 10;

[0034] Housing 100;

[0035] First wall surface 110; first boss 111; second boss 112;

[0036] Positioning column 120;

[0037] Diaphragm 200;

[0038] Main body 210; fourth side 211;

[0039] Extension portion 220; second wall surface 221; first side edge 222; second side edge 223;

[0040] The pressing plate 300; the first end 310; the second end 320; the middle portion 330; the third side 340; the first section 341; the fifth side 350; the positioning hole 360;

[0041] The second direction X;

[0042] The first direction Y.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Household appliances such as washing machines are often provided with display panels, which generally include a housing and a membrane for displaying images and texts. During processing, the housing of the display panel is often integrally injection molded with the image and text display membrane, and the circuit of the image and text display membrane is led out through the outlet of the housing. In order to prevent the position of the lead-out circuit from changing during use, after the circuit of the image and text display membrane is led out from the display module, it is often necessary to further fix the lead-out circuit to the housing at the lead-out outlet. In the prior art, the lead-out circuit is often fixed to the display module by gluing the lead-out circuit. During processing, it is necessary to wait for the glue to stabilize before entering the next processing step. Since it takes a long time for the glue to solidify and stabilize, waiting for the glue to solidify will seriously reduce the production efficiency of the appliance, which is not conducive to mass production.

[0046] To solve the above problems, Figures 1 to 8 As shown, the present application proposes a display module 10 , which includes a housing 100 , a diaphragm 200 and a pressing plate 300 .

[0047] like Figure 1 As shown, the housing 100 has a first wall surface 110. It should be noted that, in different embodiments, the housing 100 can be formed by injection molding on the diaphragm 200, so that the housing 100 and the diaphragm 200 form a whole. The housing 100 can also be first manufactured in any suitable manner, and then the diaphragm 200 can be installed on the housing 100. Specifically, the injection molding material can be injected on the outer surface of the diaphragm 200 and the housing 100 can be formed by the process of in-mold injection molding. Of course, it is understandable that the diaphragm 200 can also be applied to the housing 100 by other processes, and the technical solution of the present application does not limit the manufacturing method and specific installation method of the housing 100 and the diaphragm 200.

[0048] like Figure 1 as well as Figure 3 As shown, the diaphragm 200 is connected to the first wall surface 110 . The diaphragm 200 includes a main body portion 210 and an extension portion 220 connected to each other. The extension portion 220 includes a second wall surface 221 away from the first wall surface 110 .

[0049] It is understandable that in a specific household appliance, the diaphragm 200 may include a substrate layer, a graphic layer and a circuit layer, and the graphic layer and the circuit layer are printed on the substrate layer. As a printed carrier, the substrate layer can be configured with a thin sheet having a certain structural strength. As the raw material of the substrate layer, it can be resins such as polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polypropylene (PP), acrylic resin, etc. The type of graphics on the graphic layer can also be arbitrary. Specifically, the graphics on the graphic layer can be any type of language (for example, Chinese characters, English letters, French letters, etc.), numbers, color combinations, patterns, and any one or any combination of graphics presented in areas with different gray values. The circuit layer has a printed circuit, so that the circuit layer as a whole presents the form of a flexible circuit. In different embodiments, the printing method may also be different. Specifically, the circuit can be printed by spraying, laser printing, brushing, etc. In short, each printed layer printed on the substrate layer itself has no film carrier, that is, the circuit layer itself has no film carrier, and the graphic layer itself has no film carrier. Each printed layer uses the substrate layer as a carrier, and each printed layer is printed layer by layer on the substrate layer to obtain each printed layer, thereby realizing the graphic display function of the diaphragm 200.

[0050] It should be noted that if Figure 1 As shown, in the diaphragm 200, a part of the diaphragm 200 is arranged inside the housing 100 for graphic display, function control, etc., and this application refers to this part of the diaphragm 200 as the main body 210. A part of the diaphragm 200 needs to be led out from the opening of the housing 100 to achieve the connection between the internal diaphragm 200 and the outside, that is, this part of the diaphragm 200 carries the circuit that connects the diaphragm 200 as a whole with the outside. This part is the outlet part of the molded part of the graphic layer and the circuit layer integrally injected, and this application refers to this part of the diaphragm 200 as the extension part 220.

[0051] like Figure 1 as well as Figure 3As shown, the pressing plate 300 is attached to the second wall surface 221 and connected to the housing 100, and the pressing plate 300 and the housing 100 jointly clamp the extension 220. The first wall surface 110 is away from the second wall surface 221, and the pressing plate 300 is attached to the second wall surface 221, that is, the pressing plate 300 is arranged on the side of the diaphragm 200 away from the housing 100, and the pressing plate 300 is further connected to the housing 100, so that the diaphragm 200 is clamped between the pressing plate 300 and the housing 100. It can be understood that the pressing plate 300 can be made of the same or different material as the diaphragm 200. When the pressing plate 300 is fixed to the housing 100, the fixing of the pressing plate 300 and the housing 100 can also be achieved by back glue (adhesive), spot welding, surface welding, two-color injection molding or multi-color injection molding. Compared with the prior art, in which glue is directly applied to the extension part 220 and the extension part 220 is fixed to the shell 100 by gluing and fixing, which requires a long time to wait for the glue to solidify, the present application adopts a pressing plate 300 and the shell 100 to fix the extension part 220. Not only can the extension part 220 be fixed to the shell 100 efficiently and quickly, thereby effectively improving the production efficiency of the display module 10, but also the pressing plate 300 can play a role in protecting the circuit. The contact surface between the pressing plate 300 and the extension part 220 is large and uniform, the pressing plate 300 has a stronger ability to fix the circuit, and the stress concentration is also significantly reduced. On the one hand, this allows the pressing plate 300 to better protect the circuit when the extension part 220 is pulled, and on the other hand, the large area coverage also allows the pressing plate 300 to provide better moisture-proof protection for the extension part 220.

[0052] It should be noted that if Figure 1 As shown, for ease of explanation, the present application defines a direction parallel to the side of the extension portion 220 and pointing from the extension portion 220 to the main body 210 as the first direction Y, and a direction parallel to the second wall 221 and perpendicular to the first direction Y as the second direction X.

[0053] like Figure 2 as well as Figure 5 As shown, in some embodiments, the length of the pressing plate 300 may be different according to different usage requirements. It is understandable that in different embodiments, the pressing plate 300 may be arranged across the protruding portion 220 along the second direction X, that is, the pressing plate 300 may cover the protruding portion 220 along the second direction X. The pressing plate 300 may also cover part of the extension portion in the second direction X. In different embodiments, the display module 10 may be provided with only a single pressing plate 300, or may be provided with multiple pressing plates 300. When the display module 10 has multiple pressing plates 300, each pressing plate 300 may completely cover the protruding portion 220 along the second direction X, or may only cover part of the protruding portion 220 in the second direction X. In different embodiments, the form in which the pressing plate 300 covers the protruding portion 220 may vary according to different usage requirements. As Figure 4As shown, in this embodiment, along the second direction X, the pressing plate 300 includes a first end 310 and a second end 320 arranged oppositely, and the extension 220 includes a first side 222 and a second side 223 oppositely. The first end 310 is located on the side of the first side 222 away from the second side 223, and the second end 320 is located on the side of the second side 223 away from the first side 222. That is, in this embodiment, both ends of the pressing plate 300 are arranged along the second direction X, the first end 310 of the pressing plate 300 is arranged on the side of the housing 100 close to the first side 222 of the extension 220, and the second end 320 is arranged on the side of the housing 100 close to the second side 223 of the extension 220, and the pressing plate 300 covers the extension 220 along the second direction X. In this embodiment, the pressing plate 300 completely covers the extension 220 along the second direction X, which not only helps to enhance the fixing of the pressing plate 300 to the diaphragm 200, but also helps to further disperse the contact stress between the pressing plate 300 and the diaphragm 200.

[0054] like Figure 6 As shown, in some embodiments, according to different use requirements, the first end 310 and the second end 320 of the pressing plate 300 can be both connected to the housing 100, or only part of the ends can be connected to the housing 100. Taking the connection of the first end 310 to the housing 100 as an example, when only the first end 310 of the pressing plate 300 is connected to the housing 100, since the pressing plate 300 has a certain strength, the pressing plate 300 and the housing 100 are connected to form a clamping structure with one end open, and the diaphragm 200 is clamped between the pressing plate 300 and the housing 100. The pressing plate 300 is connected to the housing 100 at only one end, which is conducive to the disassembly and maintenance between the pressing plate 300 and the housing 100. In this embodiment, the first end 310 and the second end 320 are both connected to the housing 100, and the connection of the first end 310 and the second end 320 to the housing 100 can effectively improve the stability of the extension 220 fixed to the housing 100.

[0055] In some embodiments, according to different usage requirements, the width of the pressing plate 300 along the second direction X may be different. In some embodiments, in order to facilitate processing, the width of the pressing plate 300 along the first direction Y may also be the same, that is, in some embodiments, the pressing plate 300 may be a regular rectangular pressing plate 300. Figure 4As shown, in this embodiment, the pressing plate 300 further includes a middle portion 330 that overlaps with the extension portion 220 in a direction perpendicular to the second wall surface 221. Along the direction from the extension portion 220 to the main body portion 210, that is, along the first direction Y, the width dimension of the middle portion 330 may be smaller than the width dimension of the first end portion 310. It can be understood that the middle portion 330 here refers to the overlapping portion of the pressing plate 300 and the extension portion 220 in the first direction Y. The width dimension of the middle portion 330 may be smaller than the width dimension of the first end portion 310. It can be understood that, along the first direction Y, the average width of the first end portion 310 is greater than the average width of the middle portion 330. In some embodiments, the width dimension of the middle portion 330 may also be smaller than the width dimension of the second end portion 320. Similarly, the width dimension of the middle portion 330 may be smaller than the width dimension of the first end portion 310. It can be understood that, along the first direction Y, the average width of the second end portion 320 is greater than the average width of the middle portion 330. When the width of the width end of the pressing plate 300 is greater than the width of the middle portion 330, since the connection area between the first end 310 and the second end 320 and the housing 100 is greater than the connection area between the middle portion 330 and the diaphragm 200, the first end 310 and the second end 320 can be more stably connected to the housing 100. On the other hand, after the pressing plate 300 is positioned on the housing 100, the housing 100 is hot-melted, so that the first end 310 and the second end 320 can be connected to the housing 100. Since the width of the first end 310 and the second end 320 along the first direction Y is greater than the width of the middle portion 330, the first end 310 and the second end 320 can be engaged with the housing 100, thereby increasing the stability of the connection between the pressing plate 300 and the housing 100.

[0056] like Figure 1As shown, in some embodiments, according to different usage requirements, the housing 100 may be provided with a connection structure that is convenient for connection with the first end 310 and the second end 320. Specifically, the first housing 100 may be provided with connection structures such as connection bosses and connection buckles. In this embodiment, the first wall surface 110 is provided with a first boss 111 and a second boss 112, and the first boss 111 and the second boss 112 are respectively provided on both sides of the extension portion 220 along the second direction X, the first end 310 is connected to the first boss 111, and the second end 320 is connected to the second boss 112. Specifically, the first end 310 may be provided with a slot connected to the first boss 111, and the second end 320 may also be provided with a slot connected to the second boss 112. The arrangement of the first boss 111 and the second boss 112 can further improve the connection strength between the first end 310, the second end 320 and the housing 100, thereby improving the connection stability between the pressing plate 300 and the housing 100, and also further improving the fixing ability of the pressing plate 300 to the extension 220. It can be understood that in some embodiments, the housing 100 may be provided with the first boss 111 and the second boss 112 at the same time, and the forms of the first boss 111 and the second boss 112 and the connection methods of the first boss 111 and the second boss 112 and the pressing plate 300 may be different. In some embodiments, the display module 10 may also be provided with a connecting piece, and then the first end 310 and the second end 320 are connected to the first boss 111 and the second boss 112 respectively through the connecting piece, which is not limited here.

[0057] like Figure 6 As shown, in some embodiments, in order to enhance the limiting effect of the pressure plate 300 on the diaphragm 200, the pressure plate 300 can also be connected to the main body 210. Specifically, along the first direction Y, the pressure plate 300 can be connected to the extension 220 at one end and connected to the main body 210 at the other end. Specifically, the pressure plate 300 can abut against the main body 210 through its side edge close to the main body 210, thereby limiting the main body 210. The pressure plate 300 can also directly cover the main body 210, so that the housing 100 directly fixes the main body 210 to the housing 100. In this embodiment, the first wall surface 110 is provided with a first boss 111 and a second boss 112, and along the second direction X, the first boss 111 and the second boss 112 are respectively provided on both sides of the extension 220. The main body 210 includes a fourth side 211, the extension 220 is connected to the fourth side 211, and the fourth side 211 abuts against the first boss 111 and the second boss 112 along the direction from the main body 210 to the extension 220. In other words, along the direction opposite to the first direction Y, the main body 210 abuts against the pressure plate 300 on the side close to the extension 220, thereby further improving the limiting ability of the pressure plate 300 on the diaphragm 200.

[0058] like Figure 7 As shown, in some embodiments, according to different usage requirements, the pressing plate 300 can be connected to the housing 100 in different directions. Specifically, the third side 340 of the pressing plate 300 can be arranged on the housing 100 along the second direction X, and the third side 340 of the pressing plate 300 can also be at any angle with the second direction X. In this embodiment, the pressing plate 300 includes a third side 340 away from the main body 210, and the third side 340 has a first section 341 that overlaps with the second wall 221 in a direction perpendicular to the second wall 221, and the length direction of the first section 341 is parallel to the second direction X. The pressing plate 300 is arranged on the second wall 221 of the extension 220, and the pressing plate 300 has a third side 340 away from the main body 210, and the overlapped portion of the third side 340 and the extension 220 is the first section 341, that is, the first section 341 is a portion of the third side 340 extending along the second direction X. The extension direction of the first section 341 is consistent with the second direction X. When subjected to external force, the stress on the extension portion 220 and the pressing plate 300 can be evenly dispersed along the second direction X, thereby effectively avoiding local fracture of the extension portion 220 due to stress concentration along the first direction Y. It is understandable that the shape of the portion of the pressing plate 300 away from the third side plate can be arbitrary and is not limited here.

[0059] like Figure 6 As shown, in some embodiments, in order to reduce the stress concentration between the pressing plate 300 and the main body 210, the first section 341 of the pressing plate 300 can be parallel to the connection position between the extension 220 and the main body 210. It can be understood that when the extension 220 is subjected to external force, due to the connection between the pressing plate 300 and the second wall 221, the stress of the extension 220 at the contact boundary between the pressing plate 300 and the second wall 221 will be greater than that at the non-boundary position. In addition, since the width of the extension 220 is significantly smaller than the width of the main body 210 along the first direction Y, the cross-section of the part where the extension 220 and the main body 210 are connected changes significantly, so the stress of the part where the extension 220 and the main body 210 are connected will also be relatively concentrated. When the difference between the connection boundary between the extension 220 and the housing 100 and the connection boundary between the extension 220 and the main body 210 also increases the stress of the extension 220, thereby increasing the risk of the extension 220 being damaged. In order to reduce the risk of rupture of the diaphragm 200 caused by stress concentration, in this embodiment, the main body 210 includes a fourth side 211, the extension 220 is connected to the fourth side 211, and the first section 341 is parallel to the fourth side 211. When the extension 220 is subjected to an external force, since the first section 341 is parallel to the fourth side 211, that is, the boundary between the pressure plate 300 and the extension 220 is parallel to the boundary between the extension 220 and the main body 210, the stress on the extension 220 can be evenly dispersed, thereby reducing the risk of rupture of the extension 220.

[0060] like Figure 4 , Figure 6 as well as Figure 8 As shown, in some embodiments, in order to improve the fixing effect of the pressing plate 300 on the extension 220, the pressing plate 300 may cover different distances of the extension 220 along the first direction Y. It should be noted that the pressing plate 300 covers the extension 220 along the second direction X. Specifically, in different embodiments, along the second direction X, from the first side 222 or the second side 223, the covering distance of the pressing plate 300 on the extension 220 may be different. Similarly, the pressing plate 300 covers the extension 220 along the first direction Y. Specifically, in different embodiments, from the fourth side 211, the covering distance of the pressing plate 300 on the extension 220 may be different. In this embodiment, the main body 210 includes a fourth side 211, the extension 220 is connected to the fourth side 211, the pressing plate 300 includes a third side 340 away from the main body 210, the third side 340 has a first section 341 that overlaps with the second wall 221 in a direction perpendicular to the second wall 221, and the distance L between the first section 341 and the fourth side 211 satisfies: 0mm<L≤10mm. Specifically, the distance between the first section 341 and the fourth side 211 can be 0.5mm, 1mm, 3mm, 7mm, 9.6mm or 10mm, etc., which is not limited here.

[0061] like Figure 8 As shown, in some embodiments, according to different usage requirements, along the first direction Y, the pressing plate 300 can not only cover the extension portion 220, but also cover the main body 210. In this embodiment, the main body 210 includes a fourth side 211, the extension portion 220 is connected to the fourth side 211, and the pressing plate 300 includes a fifth side 350 facing the main body 210. When viewed in a direction perpendicular to the second wall 221, the fourth side 211 is flush with the fifth side 350. In other words, in order to ensure the fixing ability of the pressing plate 300 to the diaphragm 200, along the first direction Y, the fourth side 211 can overlap with the fifth side 350. In some embodiments, in order to further improve the fixing ability of the pressing plate 300 to the diaphragm 200, the fifth side 350 can be located on the side of the fourth side 211 away from the extension portion 220.

[0062] like Figure 1As shown, in some embodiments, in order to enable the pressing plate 300 to be installed on the housing 100 more conveniently and quickly, the housing 100 may be provided with a positioning structure, and the pressing plate 300 may also be provided with a positioning structure that is easy to install. In some embodiments, the housing 100 may include a positioning column 120, and the positioning column 120 is used to assist the positioning of the pressing plate 300 on the housing 100. It is understood that the positioning column 120 can be an auxiliary positioning member when the pressing plate 300 is placed on the housing 100, and can also be used to fix the pressing plate 300 on the housing 100. The connection positioning member is not limited here. It is understood that in some embodiments, the pressing plate 300 can be provided with a positioning hole 360 ​​used in conjunction with the positioning column 120, and the positioning column 120 can be penetrated in the positioning hole 360. It should be noted that the pressing plate 300 can also be provided with a positioning groove and other structures so that the pressing plate 300 can be connected to the positioning column 120. In some embodiments, the display module 10 can be provided with one or more groups of positioning columns 120 and positioning holes 360. In the present embodiment, the housing 100 includes a positioning post 120, the pressure plate 300 includes a positioning hole 360, and the positioning post 120 is disposed in the positioning hole 360. It should be noted that, since in some embodiments, the housing 100 is made by injection molding, in order to avoid defects such as large injection depressions in the housing 100 due to the positioning post 120 having an excessively large diameter, the diameter of the positioning post 120 may be no greater than 1.5 mm, and the height of the positioning post 120 may be no greater than 2 mm. Specifically, the diameter of the positioning post 120 may be any suitable value such as 1.5 mm, 1 mm or 0.3 mm, and the height of the positioning post 120 may be any suitable value such as 2 mm, 1.5 mm, 0.8 mm or 0.5 mm, which are not limited here. It is understandable that in some embodiments, the positioning post 120 may also be disposed on the pressure plate 300, and the positioning hole 360 ​​may also be disposed on the housing 100. In some embodiments, the pressure plate 300 may be provided with both the positioning column 120 and the positioning hole 360 ​​. Similarly, the housing 100 may also be provided with both the positioning hole 360 ​​and the positioning column 120 that cooperate therewith, which will not be described in detail here.

[0063] like Figure 1 as well as Figure 8As shown, in different embodiments, according to different usage requirements, the pressing plate 300 can be fixed to the housing 100 in different ways. In different embodiments, the pressing plate 300 can be fixedly connected to the housing 100 by welding or gluing. Specifically, welding can be spot welding, surface welding, etc., and gluing can be gluing on the side of the pressing plate 300 close to the housing 100, thereby realizing the connection between the pressing plate 300 and the housing 100. Compared with the prior art of directly applying glue to the extension 220 and then fixing the extension 220 to the housing 100, the pressing plate 300 can also be glued on the side close to the housing 100, which can effectively improve the production efficiency of the display module 10. On the other hand, in this embodiment, the pressing plate 300 can also be directly fixed to the housing 100 by electric welding, which enables the extension 220 to be efficiently and quickly fixed to the housing 100, thereby effectively improving the production efficiency of the display module 10.

[0064] like Figure 1 as well as Figure 8 As shown, in different embodiments, according to different usage requirements, the pressing plate 300 and the housing 100 can be made of different materials. Specifically, the pressing plate 300 and the housing 100 can be made of materials with different melting points. The pressing plate 300 can be connected to the housing 100 in different ways. Specifically, the pressing plate 300 can be connected to the housing 100 by hot melting. It can be understood that when the pressing plate 300 is hot-melted to the housing 100, since the pressing plate 300 is used to connect to the housing 100, it ultimately limits the displacement of the diaphragm 200. Therefore, in order to ensure the fixing effect of the pressing plate 300 on the diaphragm 200, in this embodiment, the pressing plate 300 is hot-melted to the housing 100, and the melting point of the material of the pressing plate 300 is higher than the melting point of the material of the housing 100. When connecting, firstly, the pressing plate 300 is placed in advance at the place to be connected, and then the connecting part of the pressing plate 300 and the shell 100 is heated. When the temperature reaches the melting point of the shell 100, the shell 100 begins to melt first. Since the melting point of the pressing plate 300 is higher than the melting point of the shell 100, after the shell 100 begins to melt, the pressing plate 300 gradually sinks into the molten shell 100 toward the side close to the shell 100. When the molten part of the shell 100 is sufficient to achieve the connection with the pressing plate 300, the heating of the shell 100 can be stopped. After the shell 100 is cooled and solidified again, the pressing plate 300 is fixed to the shell 100. It should be noted that in order to facilitate the control of the hot melt connection between the shell 100 and the pressing plate 300, in some embodiments, the pressing plate 300 and the shell 100 can be heated at the same time, and the heating temperature of the hot melt can also be controlled between the melting point of the shell 100 and the melting point of the pressing plate 300, which is not limited here.

[0065] The second aspect of the present application further provides a display device (not shown in the figure), which may include the display module 10 of any of the above embodiments. Thanks to the improvement of the above display module 10, the display device (not shown in the figure) of this embodiment has the same technical effect as the above display module 10, which will not be described in detail here.

[0066] The third aspect of the present application further provides a household appliance (not shown in the figure), which includes the above-mentioned display device. Thanks to the improvement of the above-mentioned display module 10, the household appliance (not shown in the figure) of this embodiment has the same technical effects as the above-mentioned display module 10 and display device, which will not be repeated here. It should be noted that the other contents of the display module 10, display device and household appliance disclosed in the present invention can be referred to the prior art, which will not be repeated here.

[0067] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), 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 indication will also change accordingly.

[0068] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, 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", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies 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 the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0069] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A display module, characterized in that: include: A housing having a first wall surface; A diaphragm connected to the first wall surface, the diaphragm comprising a main body portion and an extension portion connected to each other, the extension portion comprising a second wall surface away from the first wall surface; as well as A pressing plate is attached to the second wall surface and connected to the shell. The pressing plate and the shell clamp the extension portion together.

2. The display module according to claim 1, wherein: The pressing plate includes a first end and a second end that are arranged opposite to each other, a direction along the extension portion pointing to the main body portion is a first direction, a direction parallel to the second wall surface and perpendicular to the first direction is a second direction, and the extension portion includes a first side edge and a second side edge that are opposite to each other along the second direction; The first end is located at a side of the first side facing away from the second side, and the second end is located at a side of the second side facing away from the first side.

3. The display module according to claim 2, wherein: The first end and the second end are both connected to the shell.

4. The display module according to claim 3, wherein: The pressing plate further includes a middle portion that coincides with the protruding portion in a direction perpendicular to the second wall surface; Along the direction from the protruding portion to the main body portion, the width dimension of the middle portion is smaller than the width dimension of the first end portion; and / or the width dimension of the middle portion is smaller than the width dimension of the second end portion.

5. The display module according to claim 3, wherein: The first wall surface is provided with a first boss and a second boss. The first boss and the second boss are respectively provided at two sides of the extension portion along the second direction. The first end is connected to the first boss, and the second end is connected to the second boss.

6. The display module according to claim 1, wherein: The direction from the extension portion to the main body portion is a first direction, and the direction parallel to the second wall surface and perpendicular to the first direction is a second direction; The first wall surface is provided with a first boss and a second boss, and along the second direction, the first boss and the second boss are respectively provided on both sides of the extension portion; The main body includes a fourth side, the extension portion is connected to the fourth side, and the fourth side abuts against the first boss and the second boss along a direction from the main body to the extension portion.

7. The display module according to claim 1, wherein: The direction from the extension portion to the main body portion is a first direction, and the direction parallel to the second wall surface and perpendicular to the first direction is a second direction; The pressing plate includes a third side facing away from the main body, the third side has a first section overlapping with the second wall surface along a direction perpendicular to the second wall surface, and a length direction of the first section is parallel to the second direction.

8. The display module according to claim 7, wherein: The main body includes a fourth side, the extension portion is connected to the fourth side, and the first section is parallel to the fourth side.

9. The display module according to claim 1, wherein: The main body includes a fourth side, and the extension portion is connected to the fourth side; The pressing plate includes a third side facing away from the main body, and the third side has a first section overlapping with the second wall surface along a direction perpendicular to the second wall surface; A distance L between the first section and the fourth side edge satisfies: 0mm<L≤10mm.

10. The display module according to claim 1, wherein: The main body includes a fourth side, and the extension portion is connected to the fourth side; The pressing plate includes a fifth side facing the main body, and when viewed in a direction perpendicular to the second wall, the fourth side is flush with the fifth side, or the fifth side is located on a side of the fourth side away from the protruding portion.

11. The display module according to claim 1, wherein: The housing includes a positioning column, the pressure plate includes a positioning hole, and the positioning column is inserted into the positioning hole.

12. The display module according to claim 1, wherein: The pressing plate is welded to the shell.

13. The display module according to claim 1, wherein: The pressing plate is connected to the shell by thermal melting, and the melting point of the material of the pressing plate is higher than the melting point of the material of the shell.

14. A display device, characterized in that: A display module comprising any one of claims 1-13.

15. A household appliance, characterized in that: Includes the display device as claimed in claim 14.

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