Mounting structure of digital display screen and air purifier

Abstract

The utility model discloses a mounting structure of a digital display screen, which comprises a display screen window arranged on a curved modeling surface of a shell and the digital display screen mounted on the display screen window, a first flange extending into the window is arranged on the inner wall of the display screen window, and the digital display screen comprises a display panel, a light guide plate and a PCB (printed circuit board). The outer edge of the display panel is provided with a second flange, the light guide plate is installed on the PCB, the PCB is parallel to the display screen window and is installed on the inner side of the display screen window, and the second flange of the display panel is pressed on the first flange by the light guide plate. The digital display screen of the plane structure can be matched with the curved modeling surface, and therefore the design requirement that the digital display screen is designed on the curved modeling surface by designers is met.

Description

Technical Field

[0001] This utility model relates to the technical field of display screen installation, and in particular to an installation structure for a digital display screen. Background Technology

[0002] With the diversification of home appliance designs, appliance casings are no longer limited to square structures, but are designed specifically according to the appliance's functionality and usage scenarios to cater to users' aesthetic requirements.

[0003] Curved shapes are a common design element in home appliances, while conventional digital displays are flat, which presents two problems:

[0004] One issue is the cumbersome installation process. The outer protective cover and circuit board of the display screen need to be fixed separately with screws or clips, making assembly complicated. Furthermore, as the size of digital display screens decreases, the space available for designing mounting positions becomes smaller and smaller, which further increases the difficulty of mounting position design and display screen assembly.

[0005] Secondly, uneven display brightness affects the viewing experience. The mounting surface formed by the screw posts / clips used to fix the digital display screen is a horizontal / vertical plane. When the digital display screen is assembled onto such a mounting surface, the distance between the light-emitting points at different positions of the digital display screen and the curved surface is not equal. Some light-emitting points that are closer to the curved surface will appear brighter when viewed from the outside of the curved surface, while some light-emitting points that are farther away from the curved surface will appear dimmer when viewed from the outside of the curved surface. This results in uneven overall display brightness of the digital display screen, affecting the user's viewing experience.

[0006] Therefore, the existing digital display installation structure cannot be adapted to the curved surface of the product, which means that the digital display can only be installed on flat surfaces, thus limiting designers' options when designing the product's appearance. Utility Model Content

[0007] In view of the problems existing in the prior art, the main purpose of this utility model is to provide an installation structure for a digital display screen, which enables the digital display screen to be installed on a curved surface, thereby improving the flexibility of designers in designing product appearance.

[0008] To achieve the above objectives, the mounting structure of the digital display screen includes a display window disposed in the curved area of ​​the outer shell and a digital display screen mounted on the display window. The inner wall of the display window has a first flange extending inward. The digital display screen includes a display panel, a light guide plate, and a PCB board. The outer edge of the display panel has a second flange. The light guide plate is mounted on the PCB board. The PCB board is mounted parallel to the display window on the inner side of the display window. The second flange of the display panel is pressed against the first flange by the light guide plate.

[0009] In some alternative embodiments, the outer surface of the light guide plate has the same surface profile as the display panel, and the surface of the display panel has the same surface profile as the curved area of ​​the housing.

[0010] In some alternative embodiments, the inner side of the light guide plate is fixed to the PCB board through a plurality of perforated pillar structures.

[0011] In some alternative embodiments, the perforated structure is joined together by compression or thermal fusion.

[0012] In some alternative embodiments, the first flange is provided with a plurality of positioning posts, and the second flange is provided with positioning holes adapted to the positioning posts.

[0013] In some alternative embodiments, the first flange is provided with a plurality of anti-mistake protrusions, and the second flange is provided with anti-mistake grooves corresponding to the anti-mistake protrusions.

[0014] In some alternative embodiments, the first flange is provided with a plurality of limiting protrusions.

[0015] In some alternative embodiments, a barrier is provided inside the display window, and the PCB board is located inside the barrier.

[0016] In some alternative embodiments, the enclosure is provided with a plurality of screw hole posts, the PCB board is pressed onto the screw hole posts and is bolted to the screw hole posts.

[0017] This utility model also provides an air purifier, including a housing, the housing having a curved surface, the curved surface being provided with a digital display screen, the digital display screen being mounted on the housing via the mounting structure described in any of the above embodiments.

[0018] Compared with existing technologies, the digital display installation structure provided by this utility model features a first flange extending inward from the inner wall of the display window and a second flange on the outer edge of the display panel. During assembly, the light guide plate on the PCB board presses the display panel firmly onto the display window, simultaneously fixing the PCB board and the display panel. This eliminates the need for additional fastening structures such as clips and screws on the display panel, simplifying the installation structure and reducing the difficulty of digital display installation. Secondly, the PCB board is installed parallel to the display window, resulting in a smaller standard deviation between the distances of each light-emitting point on the PCB board and the display window. This leads to more uniform brightness of the light-emitting points on the PCB board when viewed from the outside of the display window. Therefore, the planar structure of the digital display can be adapted to curved surfaces, thus meeting the design requirements of designers who want to place digital displays on curved surfaces.

[0019] In addition, this utility model also provides an air purifier that adopts the installation structure of the digital display screen. The installation structure is simple and the appearance is better, ensuring the user's user experience. Attached Figure Description

[0020] Figure 1 A schematic diagram of the installation structure provided in the embodiment of this utility model;

[0021] Figure 2 This is an exploded view of a digital display screen.

[0022] Figure 3 This is a schematic diagram of the structure of the display window;

[0023] Figure 4 This is a schematic diagram of the display panel structure;

[0024] Figure 5 This is a schematic diagram of the structure of an air purifier provided in an embodiment of the present invention. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Reference Figure 1This utility model embodiment proposes a digital display screen mounting structure, which includes a display screen window 10a disposed in the curved area of ​​the housing 10 and a digital display screen mounted on the display screen window 10a. The inner wall of the display screen window 10a has a first flange extending into the window, and the digital display screen is pressed onto the first flange and locked to the inner side of the display screen window 10a by screws.

[0028] Specifically, continue to refer to Figure 1 and 2 -4. The digital display screen includes a display panel 21, a light guide plate 22, and a PCB board 21. The outer edge of the display panel 21 has a second flange 23a, which is pressed against the first flange 10d. The main body of the display panel 21 is engaged in the display window 10a, and its surface coincides with the curved contour of the outer shell 10 to maintain the surface consistency between the outer display panel 21 and the outer shell 10. The light guide plate 22 is disposed on the PCB board 21 and has a light guide channel for the light from the light-emitting points on the PCB board 21 to be directed to the display panel 21. Multiple light-emitting points are disposed on the PCB board 21, and each light-emitting point is correspondingly disposed with an LED chip 211. The LED chips 211 are arranged according to a preset rule to form text, graphic symbols, or light-emitting arrays. The light guide channel 22a on the light guide plate 22 corresponds to the text, graphic symbols, or light-emitting arrays formed by the LED chips 211, so as to project the luminous text and patterns formed when the LED chips 211 are lit onto the display panel 21.

[0029] During installation, the display panel 21 is first installed on the display window 10a, and then the PCB board 21 with the light guide plate 22 is pressed onto the display panel 21. The PCB board 21 is then locked to the inside of the housing by screws / clasps, thus completing the installation of the digital display screen.

[0030] In this embodiment, the PCB board 21 is installed parallel to the inner side of the display window 10a. Since the display window 10a is located on the curved surface of the housing 10, the left and right sides of the window 10a are not on the same horizontal line, but at an angle to the horizontal. If the PCB board 21 is installed parallel to the horizontal line inside the window 10a, the light-emitting points on the left side of the PCB board 21 are farther from the window, while the light-emitting points on the right side are closer to the window. This results in uneven brightness when viewed from the outside of the window. Therefore, installing the PCB board 21 parallel to the inner side of the display window 10a reduces the standard deviation of the distances between the light-emitting points on the PCB board 21 and the display window 10a, resulting in more uniform brightness of the light-emitting points when viewed from the outside of the display window 10a.

[0031] Specifically, continue to refer to Figure 1 Set the left edge point of window 10a as P1 and the left edge point of window 10a as P2. Use the line connecting point P1 and point P2 to represent the tilt line of window. Make the left and right directions of PCB board 21 parallel to the tilt line. The distance between each light-emitting point on PCB board 21 and the curved display board 21 tends to be consistent. In this way, when viewed from the outside of the display window 10a, the brightness of each light-emitting point on PCB board 21 is relatively more uniform.

[0032] Compared with the prior art, this utility model not only simplifies the installation structure of the digital display screen and reduces the installation difficulty of the digital display screen, but also improves the uniformity of the viewing brightness when the digital display screen is set in the curved area of ​​the shell, ensuring the user experience. In this way, the flat structure of the digital display screen can be adapted to the curved surface, meeting the design requirements of designers to design the digital display screen on the curved surface.

[0033] Continue to refer to Figure 1 In this embodiment, the outer surface of the light guide plate 22 has the same surface contour as the display panel 21, thereby enabling the light guide plate 22 to effectively press against the display panel 21 and reduce the light leakage gap between the light guide plate 22 and the display panel 21, ensuring that the outlines of the luminous text and patterns projected by the LED chip onto the display panel 21 are clearer. In addition, the surface of the display panel 21 has the same surface contour as the curved area of ​​the outer casing 10, so that the outer casing maintains the smoothness of the curved surface and does not affect the appearance and feel of the outer casing.

[0034] In this embodiment, the inner side of the light guide plate 22 is fixed to the PCB board 21 through a plurality of perforated pillar structures. (Refer to...) Figure 2 Specifically, multiple pillar structures 22b are provided on the inner side of the light guide plate 22, and hole structures 21b corresponding to the pillar structures are formed on the PCB board 21. The light guide plate 22 and the PCB board 21 are pressed together so that the pillar structures 22b on the light guide plate 22 and the hole structures 21b on the PCB board 21 engage with each other, thereby assembling the light guide plate 22 and the PCB board 21 together.

[0035] Of course, the hole structure can also be set on the light guide plate 22, while the column structure can be set on the PCB board 21.

[0036] In other embodiments, the light guide plate 22 can be fixed to the PCB board 21 by heat fusion. When heat fusion is used, it is only necessary to open the hole structure / pillar structure on the PCB board 21 so that the inner side of the light guide plate 22 is in a molten state. When the light guide plate 22 is pressed onto the PCB board 21, part of the light guide plate 22 is squeezed into the hole structure / pushed open by the pillar structure to form the corresponding pillar structure / hole structure, thereby combining with the PCB board 21.

[0037] Reference Figure 3 and Figure 4 In this embodiment, four positioning posts 10e are provided on the first flange 10d, and positioning holes 23b adapted to the positioning posts are provided on the second flange 23a. In this way, during assembly, the display panel 21 can be pre-fixed to the housing 10 through the engagement of the positioning posts 10e and the positioning holes 23b, which facilitates the installation of the digital display screen.

[0038] Continue to refer to Figure 3 and Figure 4 In this embodiment, the first flange 10d is provided with a plurality of anti-mistake protrusions (not shown in the figure), and the second flange 23a is provided with anti-mistake grooves 23c corresponding to the anti-mistake protrusions. In this way, the installation of the display panel 21 can be prevented from being mistaken, avoiding incorrect installation of the display screen.

[0039] Continue to refer to Figure 3 In this embodiment, a plurality of limiting protrusions 10f are provided on the first flange 10d. The limiting protrusions 10f are arranged around the outer periphery of the first flange 10d to restrict the position of the display panel 21 in the pre-fixed state and prevent it from loosening.

[0040] Continue to refer to Figure 3 In this embodiment, a barrier 10b is provided inside the display window 10a, and the PCB board 21 is located inside the barrier 10b. The barrier 10b is used to surround the PCB board 21 and the light guide plate 22 to protect the digital display from external collisions.

[0041] In this embodiment, a plurality of screw hole posts 10c are provided inside the enclosure 10b. Specifically, referring to... Figure 2 and Figure 3 An inner ring is provided within the enclosure 10b. Each of the four side walls of the inner ring has screw hole posts 10c, and screw holes 21a corresponding to the screw hole posts 10c are provided on the PCB board 21. During installation, the PCB board 21 is pressed onto the screw hole posts 10c, aligning the screw holes 21a on the PCB board 21 with their corresponding screw hole posts 10c. The PCB board 21 is then secured to the screw hole posts 10c using bolts.

[0042] It should be noted that the fixing of PCB board 21 is not limited to screw fixing, but can also be fixed by adhesive, clip fixing, magnetic fixing, etc.

[0043] Example 2

[0044] Based on Embodiment 1 above, this embodiment provides an air purifier 100, including a housing 10. The housing 10 has a curved surface, and a digital display screen 20 is disposed on the curved surface. Specifically, refer to the attached drawing. Figure 5The two sides of the front shell of the outer casing 10 bend towards the left and right sides of the outer casing to form a curved arc shape. A display window is provided in the upper left corner of the front shell. The specific structure of the display window is described in Embodiment 1 and will not be repeated here.

[0045] The digital display screen 20 is installed on the display window. The specific structure and installation scheme of the digital display screen 20 are described in Example 1, and will not be repeated here.

[0046] Compared with the prior art, the air purifier provided by this utility model has a digital display screen that is easy to install, has uniform viewing brightness, and provides a better user experience. Furthermore, by placing the display screen window in a corner, it has little impact on the overall appearance of the casing.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to be used in accordance with the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A mounting structure of a digital display screen, comprising a display screen window provided on a curved surface of a housing and a digital display screen mounted on the display screen window, characterized in that, The window inner wall of the display screen window has a first flange extending into the window, the digital display screen comprises a display panel, a light guide plate and a PCB board, the outer edge of the display panel has a second flange, the light guide plate is installed on the PCB board, the PCB board is installed on the inner side of the display screen window in parallel to the display screen window, and the second flange of the display panel is pressed on the first flange by the light guide plate.

2. The mounting structure for a digital display screen according to claim 1, wherein The outer side of the light guide plate has the same surface profile as the display panel, and the surface of the display panel has the same surface profile as the curved surface area of the shell.

3. The mounting structure for a digital display screen according to claim 1, wherein The inner side of the light guide plate is fixed with the PCB board through a plurality of hole column structures.

4. The mounting structure for a digital display screen according to claim 3, wherein The hole column structures are combined in a press-fit or hot melt manner.

5. The mounting structure for a digital display screen according to claim 1, wherein A plurality of positioning columns are arranged on the first flange, and a plurality of positioning holes matched with the positioning columns are arranged on the second flange.

6. The mounting structure for a digital display screen according to claim 1, wherein A plurality of foolproof protrusions are arranged on the first flange, and a plurality of foolproof grooves corresponding to the foolproof protrusions are arranged on the second flange.

7. The mounting structure for a digital display screen according to claim 1, wherein A plurality of limiting protrusions are arranged on the first flange.

8. The mounting structure for a digital display screen according to claim 1, wherein The inner side of the display screen window is provided with a fence, and the PCB board is located in the fence.

9. The mounting structure for a digital display screen according to claim 8, wherein A plurality of screw hole columns are arranged in the fence, the PCB board is press-fitted on the screw hole columns, and the PCB board is locked on the screw hole columns by bolts.

10. An air cleaner characterized by comprising: The shell has a curved surface modeling surface, and the digital display screen is installed on the shell through the mounting structure according to any one of claims 1-9.

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