Light-emitting structure and hair drier

Abstract

The light-emitting structure comprises a light shield, a lamp panel, a light guide part, a reflecting part and a panel, an opening is formed in one end of the light shield, the lamp panel, the light guide part, the reflecting part and the panel are arranged in the opening, a plurality of first LED lamp beads are arranged on the lamp panel and distributed on the outer ring of the lamp panel, the light guide part is arranged above the first LED lamp beads, and the reflecting part is arranged above the light guide part. The light guide part comprises a main body part and an extension part extending from the edge of the main body part to the direction far away from the first LED lamp bead, and the main body part covers the first LED lamp bead; the reflecting part is arranged above the first LED lamp beads and surrounds the extending part and the outer side of the panel, the inner side face of the reflecting part is an inclined reflecting face inclining towards the inner side of the reflecting part so as to reflect light guided to the inclined reflecting face by the light guide part, and the panel covers the extending part of the light guide part so as to cover light irradiated to the panel by the first LED lamp beads. Through the arrangement of the light guide piece, the reflecting piece and the panel, the first LED lamp beads are prevented from directly irradiating the eyes of a user, so that the eyes of the user are prevented from feeling uncomfortable.

Description

Technical Field

[0001] The utility model relates to the field of household products, in particular to a light-emitting structure and a hair dryer. Background Art

[0002] With the development of technology, the screen display technology of various electronic products has made great progress. Among them, the design of light guide components and optical display technology are two important research directions. The design of light guide components mainly changes the propagation path of light so that light can be effectively propagated in a limited space, thereby improving the brightness and uniformity of the screen. The screen display technology displays information such as images and texts through the screen of an electronic device for users to view and obtain information. However, since the brightness of LED lights is relatively high, it may cause discomfort when directly irradiating the user's eyes. Summary of the Invention

[0003] The purpose of the utility model is to provide a light-emitting structure and a hair dryer to solve the problem that it may cause discomfort when the LED lamp beads directly irradiate the user's eyes.

[0004] To achieve the above purpose, a light-emitting structure provided by the utility model includes a light-shielding cover, a lamp board, a light guide component, a reflecting component and a panel. The light-shielding cover is of a hollow structure and has an opening at one end. The lamp board, the light guide component, the reflecting component and the panel are arranged in the opening. A plurality of first LED lamp beads are arranged on the lamp board, and the first LED lamp beads are distributed on the outer circle of the lamp board. A light guide component is arranged above the first LED lamp beads. The light guide component includes a main body part and an extension part extending from the edge of the main body part away from the first LED lamp beads. The main body part covers the first LED lamp beads. The reflecting component is arranged above the first LED lamp beads and surrounds the outside of the extension part and the panel. The inner side surface of the reflecting component is an inclined reflecting surface inclined towards the inside of the reflecting component to reflect the light guided by the light guide component to the inclined reflecting surface. A diffusion gap for light is arranged between the inclined reflecting surface and the extension part. The panel covers the extension part of the light guide component to cover the light irradiated from the first LED lamp beads onto the panel.

[0005] Preferably, a bearing ring surface is arranged on the inner wall of the light-shielding cover, the reflecting component is installed on the bearing ring surface, the lamp board is located below the bearing ring surface, and the bearing ring surface does not cover the first LED lamp beads.

[0006] Preferably, the upper end of the extension part is bent outward to form a bent part, and the lower part of the reflecting component extends inward with a clamping part, and the bent part is connected to the clamping part.

[0007] Preferably, an inner side of an upper portion of the bent portion is provided with a recessed first step portion, a lower portion of the panel is provided with a second step portion corresponding to the first step portion, and the second step portion is clamped on the first step portion so that the panel covers the light guide member.

[0008] Preferably, an outer side surface of the bent portion is provided with an arc-shaped light guide surface corresponding to the inclined reflection surface.

[0009] Preferably, the inclined reflection surface is an arc surface, and a reflective metal or a reflective paint is provided on the inclined reflection surface.

[0010] Preferably, the panel is made of a transparent material, and a black coating is provided on an inner side surface of the panel.

[0011] Preferably, at least one second LED lamp bead is provided in a middle portion of the lamp board, an avoidance opening corresponding to the second LED lamp bead is provided on the light guide member, and a light outlet corresponding to the second LED lamp bead is provided on the black coating.

[0012] Preferably, the light guide member is made of polymethyl methacrylate or polycarbonate, and a light softening agent is doped in the polymethyl methacrylate or the polycarbonate.

[0013] The present utility model further discloses a hair dryer, including the above-mentioned light emitting structure, wherein the light shielding cover is a housing of the hair dryer, and the opening of the light shielding cover is arranged opposite to an air outlet of the hair dryer.

[0014] Compared with the prior art, by providing the light guide member, a reflection member corresponding to the light guide member, and the panel, the present utility model blocks the light directly emitted by the first LED lamp bead outward, so that the light is only reflected by the inclined reflection surface, thereby preventing the first LED lamp bead from directly irradiating the eyes of the user to avoid discomfort of the user's eyes. In addition, the light emitting structure of the embodiment of the present utility model is compact and has a small volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 are a structural diagram of the light emitting structure of the present utility model and a structural diagram of the hair dryer.

[0016] Figure 2 is Figure 1 exploded view of.

[0017] Figure 3 is Figure 1 cross-sectional view of.

[0018] Figure 4 is Figure 3 magnified view of portion A in.

[0019] Figure 5This is the structural diagram of the lamp board in the embodiment of the present utility model.

[0020] Figure 6 This is the structural diagram of the light guide member at one angle in the embodiment of the present utility model.

[0021] Figure 7 This is the structural diagram of the light guide member at another angle in the embodiment of the present utility model.

[0022] Figure 8 This is the structural diagram of the reflector at one angle in the embodiment of the present utility model.

[0023] Figure 9 This is the structural diagram of the reflector at another angle in the embodiment of the present utility model.

[0024] Figure 10 This is the structural diagram of the panel in the embodiment of the present utility model. Detailed implementation manners

[0025] To describe in detail the technical content, structural features, and achieved effects of the present utility model, the following is a detailed description in combination with the implementation manners and with reference to the accompanying drawings.

[0026] Such as Figures 1 to 10As shown in the figure, an embodiment of the present utility model provides a lighting structure, which includes a light-shielding cover 1, a lamp board 2, a light guide member 3, a reflecting member 4, and a panel 5. The light-shielding cover 1 is a hollow structure, and an opening 11 is provided at one end of the light-shielding cover 1. The lamp board 2, the light guide member 3, the reflecting member 4, and the panel 5 are arranged in the opening 11. A plurality of first LED lamp beads 21 are provided on the lamp board 2, and the first LED lamp beads 21 are distributed on the outer circle of the lamp board 2. A light guide member 3 is provided above the first LED lamp beads 21. The light guide member 3 includes a main body portion 30 and an extension portion 31 extending from the edge of the main body portion 30 away from the first LED lamp beads 21. The main body portion 30 covers the first LED lamp beads 21; the reflecting member 4 is provided above the first LED lamp beads 21 and surrounds the outer sides of the extension portion 31 and the panel 5. The inner side surface of the reflecting member 4 is an inclined reflecting surface 41 inclined towards the inside of the reflecting member 4 to reflect the light guided by the light guide member 3 onto the inclined reflecting surface 41. A diffusion gap 44 for light is provided between the inclined reflecting surface 41 and the extension portion 31. The panel 5 covers the extension portion 31 of the light guide member 3 to cover the light irradiated from the first LED lamp beads 21 onto the panel 5. Specifically, there are multiple first LED lamp beads 21 and they are evenly arranged on the outer circle of the lamp board 2. The light-emitting surface of the first LED lamp beads 21 is arranged towards the opening 11. The light-shielding cover 1 is used to block the light in other directions except the direction perpendicular to the lamp board 2 to prevent light leakage. The lamp board 2, the light guide member 3, the reflecting member 4, and the panel 5 are all relatively installed on the inner side of the light-shielding cover 1 and are fixedly arranged relative to the light-shielding cover 1. Both the reflecting member 4 and the light guide member 3 are annular. The outer side surface of the reflecting member 4 is attached to the inner side surface of the light-shielding cover 1. The outer side surface of the reflecting member 4 is a fitting surface 43. The outer end surface of the opening 11, the outer end surface of the reflecting member 4, and the outer end surface of the panel 5 are basically flush. The material of the light-shielding cover 1 is an opaque plastic material. The material of the reflecting member 4 is an ABS material or a polycarbonate material, preferably an opaque structure. The material of the light guide member 3 is polymethyl methacrylate or polycarbonate and is a milky translucent material formed by doping a light softening agent in polymethyl methacrylate or polycarbonate, so as to avoid forming individual light spots of the light, making the light softer and ensuring the display effect. At the same time, the light guide member 3 makes the light diffuse from the vertical direction to the horizontal direction and irradiate onto the reflecting member 4. This design can effectively solve problems such as light spots in the actual application of the existing light guide structure, which affect the display effect. It should be noted that the specific materials of the light guide member 3 and the reflecting member 4 can be selected according to actual needs as long as they can meet the functions of the light guide member 3 and the reflecting member 4.

[0027] By providing the light guide member 3, the corresponding reflecting member 4, and the panel 5, the present utility model blocks the light directly emitted outward by the first LED lamp beads 21, so that the light is only reflected by the inclined reflecting surface 41, thereby preventing the first LED lamp beads 21 from directly irradiating the user's eyes and avoiding discomfort of the user's eyes. In addition, the lighting structure of the embodiment of the present utility model is compact and has a small volume.

[0028] In the embodiment of the present utility model, the extension part 31 is provided with an arc-shaped light guide surface 312 corresponding to the inclined reflection surface 41. Specifically, as Figure 3 , Figure 4 and Figure 7 shown, the light guide surface 312 is arranged on the outer side surface of the extension part 31. By providing the arc-shaped light guide surface 312, the light guided by the light guide member 3 to the inclined reflection surface 41 can be effectively increased, avoiding more light energy loss and having higher brightness.

[0029] In the embodiment of the present utility model, a bearing ring surface 12 is provided on the inner wall of the light shielding cover 1, the reflecting member 4 is installed on the bearing ring surface 12, the lamp board 2 is located below the bearing ring surface 12 and the bearing ring surface 12 does not cover the first LED lamp beads 21. Specifically, as Figures 2 to 4 shown, the bearing ring surface 12 is arranged around the inner wall of the light shielding cover 1, the bearing ring surface 12 extends radially towards the light shielding cover 1, and the projection of the first LED lamp beads 21 in the axial direction of the bearing ring surface 12 is located inside the projection of the bearing ring surface 12 in its axial direction so that the bearing ring surface 12 does not cover the first LED lamp beads 21.

[0030] In the embodiment of the present utility model, the upper end of the extension part 31 is bent outward to form a bent part 311, and a clamping part 42 extends inward from the lower part of the reflecting member 4, and the bent part 311 is connected to the clamping part 42. Specifically, as Figure 4 and Figures 6 to 9 shown, the reflecting member 4 is annular. By providing the bent part 311 and the clamping part 42, it is convenient to connect the light guide member 3 to the reflecting member 4, with a clever structure and easy to implement.

[0031] In the embodiment of the present utility model, a concave first step part 313 is provided on the inner side of the upper part of the bent part 311, and a second step part 51 corresponding to the first step part 313 is provided on the lower part of the panel 5, and the second step part 51 is clamped on the first step part 313 so that the panel 5 covers the light guide member 3. Specifically, as Figure 4 , Figure 6 , Figure 7 and Figure 10 shown, the outermost upper edge of the bent part 311 is flush with the outer edge of the panel 5 so that the panel 5 completely covers the upper part of the light guide member 3. By providing the first step part 313 and the second step part 51, it is convenient to connect the panel 5 to the light guide member 3 and the structure is more compact, occupying a smaller area.

[0032] In the embodiment of the present utility model, as Figure 4As shown in the figure, the inclined reflecting surface 41 is an arc surface, and a reflective metal is provided on the inclined reflecting surface 41 or a reflective paint is provided on the inclined reflecting surface 41. Specifically, the reflective metal or the reflective paint is used to reflect the light irradiated onto the inclined reflecting surface 41. The reflective metal can be titanium, silver, chromium, etc. The reflective paint is preferably a silver and shiny reflective paint. By setting the inclined reflecting surface 41 to be arc-shaped, the reflection area can be increased to reflect more light.

[0033] In the embodiment of the present utility model, the panel 5 is made of a transparent material, and a black coating is provided on the inner side surface of the panel 5. By providing the black coating on the inner side surface of the panel 5, the panel 5 can block the light emitted by the first LED lamp beads 21 towards the front.

[0034] In the embodiment of the present utility model, as Figures 5 to 7 shown, at least one second LED lamp bead 22 is provided in the middle of the lamp board 2, an avoidance opening 32 corresponding to the second LED lamp bead 22 is provided on the light guide member 3, and a light outlet is provided on the black coating corresponding to the second LED lamp bead 22. Specifically, the number of the first LED lamp beads 21 is fifty, and the number of the second LED lamp beads 22 is three. The setting of the avoidance opening 32 facilitates the emission of the light of the second LED lamp beads 22, and the brightness is better. At the same time, the black coating is laser-engraved by laser engraving to form the light outlet of the required functional pattern, so that the light of the second LED lamp beads 22 can be emitted from the light outlet. In addition, a soft light coating is provided at the light outlet to soften the light of the second LED lamp beads 22 and prevent the second LED lamp beads 22 from forming individual light spots.

[0035] As Figures 1 to 10 shown, the embodiment of the present utility model further provides a hair dryer, including the above-mentioned light-emitting structure. The light-shielding cover 1 is the housing of the hair dryer, and the opening 11 of the light-shielding cover 1 is arranged opposite to the air outlet 13 of the hair dryer. Specifically, the number of the first LED lamp beads 21 can be fifty, and the fifty first LED lamp beads 21 are distributed on the outer circle of the lamp board 2. The number of the second LED lamp beads 22 can be three, and the three second LED lamp beads 22 are arranged in a straight line in the middle of the lamp board 2. The first LED lamp beads 21 are status indicator strips, and different color lights are emitted by the first LED lamp beads 21 to display different contents. The middle three second LED lamp beads 22 represent different function modes. For example, when the light of the first LED lamp beads 21 shows green, it means that the device is in the cold air working state. When the light of the first LED lamp beads 21 shows red, it means that the device is in the hot air state. One of the second LED lamp beads 22 lights up to indicate that the device is in mode A, and the other of the second LED lamp beads 22 lights up to indicate that the device is in mode B, etc. A button 52 is also provided on the panel 5 for switching different function modes, etc. The hair dryer in this embodiment effectively avoids the discomfort that may be caused by the direct irradiation of the LED lamp on the user's eyes, and the design is ingenious.

[0036] The above-disclosed are only the preferred examples of the present utility model. Of course, the scope of rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A light emitting structure, characterized in that: The light shield comprises a light shield, a lamp board, a light guide, a reflector and a panel, wherein the light shield is a hollow structure and an opening is provided at one end of the light shield, the lamp board, the light guide, the reflector and the panel are arranged in the opening, a plurality of first LED lamp beads are arranged on the lamp board, the first LED lamp beads are distributed on the outer circle of the lamp board, a light guide is arranged above the first LED lamp beads, the light guide comprises a main body and an extension extending from the edge of the main body in a direction away from the first LED lamp beads, and the main body covers the first LED lamp beads; The reflector is arranged above the first LED lamp bead and surrounds the outer side of the extension part and the panel. The inner side surface of the reflector is an inclined reflective surface inclined toward the inner side of the reflector to reflect the light guided by the light guide to the inclined reflective surface. A light diffusion gap is provided between the inclined reflective surface and the extension part. The panel covers the extension part of the light guide to cover the light irradiated to the panel by the first LED lamp bead.

2. The light emitting structure according to claim 1, characterized in that: A bearing ring surface is provided on the inner wall of the light shield, the reflector is mounted on the bearing ring surface, the lamp board is located below the bearing ring surface and the bearing ring surface does not cover the first LED lamp bead.

3. The light emitting structure according to claim 1, characterized in that: The upper end of the extending portion is bent outward to form a bent portion, and a clamping portion is extended inwardly from the lower portion of the reflecting member, and the bent portion is connected to the clamping portion.

4. The light emitting structure according to claim 3, characterized in that: A concave first step portion is provided inside the upper portion of the bending portion, a second step portion is provided at the lower portion of the panel corresponding to the first step portion, and the second step portion is clamped on the first step portion so that the panel covers the light guide.

5. The light emitting structure according to claim 3, characterized in that: An arc-shaped light-guiding surface is arranged on the outer side of the bent portion corresponding to the inclined reflecting surface.

6. The light emitting structure according to claim 1, characterized in that: The inclined reflective surface is an arc surface, and reflective metal is arranged on the inclined reflective surface or reflective paint is arranged on the inclined reflective surface.

7. The light emitting structure according to claim 1, characterized in that: The panel is made of transparent material, and the inner side of the panel is provided with a black coating.

8. The light emitting structure according to claim 7, characterized in that: At least one second LED lamp bead is arranged in the middle of the lamp board, a avoidance opening corresponding to the second LED lamp bead is arranged on the light guide, and a light outlet is arranged on the black coating corresponding to the second LED lamp bead.

9. The light emitting structure according to claim 1, characterized in that: The light guide member is made of polymethyl methacrylate or polycarbonate.

10. A hair dryer, characterized in that: It comprises the light emitting structure as described in any one of claims 1 to 9, wherein the light shield is a shell of the hair dryer, and the opening of the light shield is arranged opposite to the air outlet of the hair dryer.

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