Lamp module and electric appliance having the same

Abstract

This application discloses a lighting module and an electrical appliance having the same. The lighting module includes a lampshade housing and a light source assembly located inside the lampshade housing. The lampshade housing includes an arc-shaped light-transmitting portion through which light emitted from the light source assembly exits. The arc-shaped light-transmitting portion has an arc-shaped cross-section, with the curvature direction of the arc pointing inwards from the lampshade housing. In the extending direction of the arc-shaped cross-section, at least a portion of the arc-shaped light-transmitting portion has a gradually increasing wall thickness. The lighting module disclosed in this application can achieve a gradual light emission effect without control during use, saving control costs.

Description

Technical Field

[0001] This application relates to the field of lighting technology, specifically to a lamp module and an electrical appliance having the same. Background Technology

[0002] Ambient lights are a common type of decorative lighting that can be paired with different types and functions of decorative components to achieve various lighting effects and create specific visual atmospheres.

[0003] In related technologies, the brightness changes of ambient lights are usually achieved through program control. Users can use a handheld remote control to switch the lighting modes of the ambient lights to achieve lighting effects such as gradients. However, the above control method is relatively cumbersome and requires a certain amount of control costs, making it uneconomical. Summary of the Invention

[0004] In view of this, this application provides a lighting module and an electrical appliance having the same, which can achieve a gradual light emission effect without control, thus saving control costs.

[0005] The specific technical solution adopted in this application is as follows: One aspect of this application is to provide a lighting module, which includes a lampshade housing and a light source component located inside the lampshade housing; The lampshade housing includes an arc-shaped light-transmitting section, through which the light emitted by the light source assembly exits; The arc-shaped light-transmitting part has an arc-shaped cross-section, the curvature direction of the arc-shaped cross-section is directed towards the inside of the lampshade housing, wherein, in the extending direction of the arc-shaped cross-section, the wall thickness of at least a portion of the arc-shaped light-transmitting part gradually increases.

[0006] Optionally, the arc-shaped light-transmitting portion has a first end and a second end, the first end and the second end being opposite each other in the extending direction of the arc-shaped cross section; The wall thickness of the arc-shaped light-transmitting portion increases from the first end to the second end.

[0007] Optionally, the central angle corresponding to the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting part is 58°, the ratio of the wall thickness of the first end to the wall thickness of the second end is 0.4~0.5, and the inner arc is the arc on the arc-shaped cross-section that is further away from the interior of the lampshade housing.

[0008] Optionally, the wall thickness of the first end of the arc-shaped light-transmitting part is 1.5 mm, and the wall thickness of the second end is 3.2 mm.

[0009] Optionally, the arc-shaped light-transmitting portion extends parallel to the length direction of the light source assembly, and the arc-shaped cross-section is a cross-section perpendicular to the length direction.

[0010] Optionally, the lampshade housing has a first shell wall, a second shell wall, a third shell wall, and a fourth shell wall extending along the length direction, wherein the width direction of the first shell wall is perpendicular to the width direction of the second shell wall, the third shell wall is opposite to the first shell wall, and the fourth shell wall is opposite to the second shell wall. The first end of the arc-shaped light-transmitting part is connected to the first shell wall, and the second end is connected to the second shell wall; the light source assembly is mounted on the first shell wall and emits light towards the third shell wall of the lampshade housing; Alternatively, the light source assembly is mounted on the second housing wall and emits light toward the fourth housing wall of the lampshade housing.

[0011] Optionally, the light source assembly is mounted on the first housing wall and tilted at an angle of 15° relative to the first housing wall; The vertical distance between the light-emitting center of the light source assembly and the second shell wall is 31.6 mm, and the vertical distance between the light-emitting center and the third shell wall is 15 mm; The radius of the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting part is 29.8 mm, and the central angle corresponding to the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting part is 58°.

[0012] Optionally, the lamp module further includes a reflector, the reflectivity of which is greater than that of the lamp cover housing; The reflector is located in the light-emitting direction of the light source assembly and is used to reflect the light emitted from the light source assembly so that it is emitted from the arc-shaped light-transmitting part.

[0013] Optionally, the light source assembly is tilted in a direction that is further away from the arc-shaped light-transmitting portion and closer to the reflector.

[0014] Optionally, the lighting module further includes a heat sink located inside the lampshade housing; The light source assembly is mounted on the heat sink and dissipates heat through the heat sink.

[0015] Optionally, the heat dissipation component includes a support portion and a locking portion; At least one of the support portion and the engaging portion extends along the length direction of the light source assembly, wherein the support portion is fitted to the lampshade housing and the engaging portion is connected to the support portion; The light source component is engaged with the engaging portion.

[0016] Optionally, the support includes a first wall connected to the engaging portion, and the light source assembly is attached to the first wall.

[0017] Optionally, the support portion further includes a second wall and a third wall; The second wall and the third wall are both connected to the first wall, and the first wall, the second wall and the third wall together form a cavity.

[0018] Optionally, the engaging portion includes a first hook and a second hook, the first hook and the second hook being disposed opposite to each other and both being connected to the support portion; There is a gap between the first hook and the second hook, and the light source assembly is inserted into the gap.

[0019] Optionally, the outer and / or inner surfaces of the arc-shaped light-transmitting portion have a wave-like texture, the extension direction of which is parallel to the length direction of the light source assembly.

[0020] Optionally, the waveform texture includes a plurality of protrusions arranged along the length of the light source assembly, each of the protrusions protruding outward toward the lampshade housing, and each of the protrusions having a width of 1.5 mm and a height of 0.2 mm.

[0021] Another aspect of this application is to provide an electrical appliance, which includes the above-described lighting module.

[0022] The lighting module provided in this application embodiment assembles a light source component inside a lampshade housing, and an arc-shaped light-transmitting portion is provided on the lampshade housing. The curvature of this arc-shaped light-transmitting portion points inward towards the inside of the lampshade housing. Therefore, when light is emitted through this arc-shaped light-transmitting portion, the optical path is shortened, reducing light loss. Furthermore, the inward curvature also has a light-diverging effect, expanding the illumination area. In particular, in the extension direction of the arc-shaped cross-section of this light-transmitting portion, at least a portion of the arc-shaped light-transmitting portion gradually increases in wall thickness. As the wall thickness increases, the light absorption of the arc-shaped light-transmitting portion increases, while the light transmittance decreases, thus presenting a gradually changing illuminance lighting visual effect. Therefore, the lighting module provided in this application embodiment can achieve a large illumination area and a gradually changing illuminance lighting visual effect without the need for additional control devices. Compared with related technologies, this saves control costs and improves economy and reliability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded view of a lighting module provided in an embodiment of this application; Figure 2 This is a cross-sectional view of a lampshade body provided in an embodiment of this application; Figure 3 This is a first cross-sectional view of a lighting module provided in an embodiment of this application; Figure 4 This is a second sectional view of a lighting module provided in an embodiment of this application; Figure 5 This is a third sectional view of a lighting module provided in an embodiment of this application; Figure 6 This is a fourth sectional view of a lighting module provided in an embodiment of this application; Figure 7 This is a cross-sectional view of another lighting module provided in an embodiment of this application; Figure 8 This is a cross-sectional view of another lighting module provided in the embodiments of this application; Figure 9 This is an exploded view of another lighting module provided in the embodiments of this application; Figure 10 This is a first partial schematic diagram of a lighting module provided in an embodiment of this application; Figure 11 This is a second partial schematic diagram of a lighting module provided in an embodiment of this application; Figure 12 This is a partial structural schematic diagram of a heat sink provided in an embodiment of this application; Figure 13 This is an assembly diagram of a light source assembly provided in an embodiment of this application; Figure 14 This is a partially enlarged view of a lampshade housing provided in an embodiment of this application; Figure 15 This is a magnified view of a waveform texture provided in an embodiment of this application; Figure 16 This is a schematic diagram showing the relationship between the thickness and transmittance of different test materials; Figure 17 This is an optical path diagram of a lighting module provided in an embodiment of this application.

[0025] Figure label: 10. Lampshade housing; 11. Lampshade body; 111. Receiving cavity; 112. First housing wall; 113. Second housing wall; 114. Third housing wall; 12. Lampshade cover plate; 13. Light-transmitting part; 131. First end; 132. Second end; 133. Wave-shaped texture; 1331. Protrusion; 20. Light source assembly; 21. Circuit board; 22. Light-emitting component; 30. Reflective components; 40. Heat sink; 41. Support; 411. First wall; 412. Second wall; 413. Third wall; 42. Engaging part; 421. First hook; 422. Second hook; 423. Gap.

[0026] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] This application provides a lighting module, such as... Figure 1 As shown, the lighting module includes a lampshade housing 10 and a light source assembly 20 located inside the lampshade housing 10; the lampshade housing 10 includes an arc-shaped light-transmitting portion 13, through which light emitted from the light source assembly 20 is emitted; the arc-shaped light-transmitting portion 13 has an arc-shaped cross-section, the curvature direction of the arc-shaped cross-section pointing towards the interior of the lampshade housing 10, wherein, in the extending direction of the arc-shaped cross-section, the wall thickness of at least a portion of the arc-shaped light-transmitting portion 13 gradually increases.

[0029] like Figure 1 As shown, the light source assembly 20 is assembled inside the lampshade housing 10 and emits light. The lampshade housing 10 has a light-transmitting area, which may include the entire area of ​​the lampshade housing 10 or only a part of the lampshade housing 10. The light-transmitting area may include at least an arc-shaped light-transmitting part 13, so that the light emitted by the light source assembly 20 can at least pass through the arc-shaped light-transmitting part 13 to the outside, thereby achieving an illumination effect.

[0030] In some embodiments, such as Figure 1 As shown, the lampshade housing 10 may include a lampshade body 11 and a lampshade cover 12. The lampshade body 11 has a receiving cavity 111, and the lampshade cover 12 covers the opening end of the receiving cavity 111. An arc-shaped light-transmitting portion 13 is located on the lampshade body 11. The curvature direction of the arc-shaped cross-section of the arc-shaped light-transmitting portion 13 points towards the interior of the receiving cavity 111, so that when viewed from the outside of the lampshade housing 10, the arc-shaped light-transmitting portion 13 appears to be recessed toward the receiving cavity 111.

[0031] The arc-shaped light-transmitting portion 13 has an arc-shaped cross-section, and in the extending direction of the arc-shaped cross-section, the wall thickness of at least a portion of the arc-shaped light-transmitting portion 13 exhibits a gradually increasing trend. Here, "gradually increasing trend" can refer to a continuous increase or an intermittent increase.

[0032] For example, consider the increasing discontinuity of the wall thickness along the extension direction of the arc-shaped cross-section. Assume the cross-section can be divided into three consecutive parts. The wall thickness at any point in the first part is 1.3 mm. The wall thickness at the first end of the second part (the end connecting the second and first parts) is 1.3 mm, and at the second end (the end connecting the second and third parts) is 3.2 mm, with the thickness increasing from the first end to the second end. The wall thickness at any point in the third part is also 3.2 mm. In this case, the overall wall thickness of the arc-shaped cross-section increases discontinuously.

[0033] It should be noted that "increasing" can be understood as a continuous increase. The wall thickness increases from the first end to the second end of the arc-shaped cross-section. This means that for any two positions on the arc-shaped cross-section, the wall thickness corresponding to the position closer to the second end is greater than the wall thickness corresponding to the position closer to the first end.

[0034] According to Beer-Lambert's law, when a beam of parallel monochromatic light passes perpendicularly through a uniform, non-scattering light-absorbing material, its absorbance is directly proportional to the concentration of the light-absorbing material and the thickness of the absorption layer, while its transmittance is inversely proportional to the concentration of the light-absorbing material and the thickness of the absorption layer. Therefore, in this embodiment, by designing the wall thickness of the arc-shaped light-transmitting portion 13 to gradually increase, the light emitted by the light source assembly 20 can present a lighting effect with gradually changing illuminance when it exits through the arc-shaped light-transmitting portion 13.

[0035] The mathematical expression of the Beer-Lambert law is:

[0036] in, A Absorbance; T Light transmittance; K It is the molar absorptivity, which is related to the properties of the absorbing substance and the wavelength of the incident light; b The thickness of the absorption layer; c The concentration of the light-absorbing substance; I The intensity of the emitted light; I 0 represents the intensity of the incident light.

[0037] See Figure 16 This application also provides transmittance test curves for different materials at different thicknesses in its embodiments. Figure 16 This indicates that for any of the above materials, the light transmittance decreases with increasing thickness, thus further verifying the effect of wall thickness on monochromatic illuminance.

[0038] In summary, the lighting module provided in this application embodiment assembles the light source component 20 inside the lampshade housing 10, and provides an arc-shaped light-transmitting portion 13 on the lampshade housing 10. The curvature direction of the arc-shaped light-transmitting portion 13 points inward towards the inside of the lampshade housing 10. Therefore, when light is emitted through the arc-shaped light-transmitting portion 13, on the one hand, the optical path is shortened, reducing light loss; on the other hand, the inward curvature also has the effect of diffusing light, which can expand the illumination area. Furthermore, in the extension direction of the arc-shaped cross-section of the arc-shaped light-transmitting portion 13, at least a portion of the arc-shaped light-transmitting portion 13 has a gradually increasing wall thickness. As the wall thickness increases, the light absorption of the arc-shaped light-transmitting portion 13 increases, and the light transmittance decreases, thereby presenting a lighting visual effect of gradually changing illuminance, such as... Figure 17 As shown, the thinner the wall thickness of the arc-shaped light-transmitting part 13, the denser the light and the brighter the brightness; conversely, the thicker the wall thickness of the arc-shaped light-transmitting part 13, the sparser the light and the dimmer the brightness. Therefore, the lighting module provided in this application embodiment can achieve a large illumination area and a gradual change in illuminance within the illumination area without the need for additional control devices. Compared with related technologies, this saves control costs and improves economy and reliability.

[0039] In some embodiments of this application, the arc-shaped light-transmitting portion 13 may have a first end 131 and a second end 132, the first end 131 and the second end 132 being opposite each other in the extension direction of the arc-shaped cross section; the wall thickness of the arc-shaped light-transmitting portion 13 increases from the first end 131 to the second end 132.

[0040] like Figure 2 As shown, from the first end 131 to the second end 132 of the arc-shaped light-transmitting section 13, the wall thickness of the arc-shaped light-transmitting section 13 continuously increases. That is, for any two positions on the arc-shaped cross-section, the wall thickness corresponding to the position closer to the second end 132 is greater than the wall thickness corresponding to the position closer to the first end 131. The increasing trend of the wall thickness can be linear or non-linear, as long as it exhibits a continuous increasing trend. Therefore, the light emitted through the arc-shaped light-transmitting section 13 has a higher illuminance closer to the first end 131 and a lower illuminance closer to the second end 132; from the first end 131 to the second end 132, the light emitted through the arc-shaped light-transmitting section 13 gradually dims.

[0041] like Figure 3As shown, in some embodiments of this application, the central angle corresponding to the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting portion 13 is 58°, and the ratio of the wall thickness of the first end 131 to the wall thickness of the second end 132 is 0.4~0.5, where the inner arc refers to the arc on the arc-shaped cross-section further away from the interior of the lampshade housing 10. Tests show that when the arc-shaped cross-section of the arc-shaped light-transmitting portion 13 meets the above conditions, the illuminance of the light transmitted from the first end 131 and the second end 132 of the arc-shaped light-transmitting portion 13 can well meet the lighting requirements. For example, the wall thickness of the first end 131 of the arc-shaped light-transmitting portion 13 is 1.5mm, and the wall thickness of the second end 132 is 3.2mm.

[0042] like Figure 4 As shown, the arc-shaped light-transmitting part 13 extends parallel to the length direction of the light source assembly 20, and the arc-shaped cross-section is an interface perpendicular to the length direction.

[0043] Figure 4 The arrows indicate the length direction of the light source assembly. It is evident that the light source assembly 20 is elongated, meaning it may include multiple light-emitting elements 22 arranged along its length, or it may include a single light-emitting element 22 whose length is greater than its width. The arc-shaped light-transmitting portion 13 extends parallel to the length direction of the light source assembly 20. Therefore, all light emitted from the light source assembly 20 passes through the arc-shaped light-transmitting portion 13, and under the control of the wall thickness of the arc-shaped light-transmitting portion 13, the lampshade surface corresponding to the arc-shaped light-transmitting portion 13 exhibits a gradually changing illuminance lighting effect.

[0044] In some embodiments of this application, such as Figure 5 As shown, the lampshade housing 10 has a first housing wall 112, a second housing wall 113, a third housing wall 114 and a fourth housing wall extending along the length direction. The width direction of the first housing wall 112 is perpendicular to the width direction of the second housing wall 113. The third housing wall 114 is opposite to the first housing wall 112 and the fourth housing wall is opposite to the second housing wall 113. The second end 132 of the arc-shaped light-transmitting part 13 is connected to the first housing wall 112 and the first end 131 is connected to the second housing wall 113.

[0045] For example, the first wall 411 can be a side wall extending along the length direction of the lampshade body 11, and the second wall 412 can be the bottom wall of the lampshade body 11. The ends of the side wall and the bottom wall that are close to each other are connected by an arc-shaped light-transmitting part 13. The bottom wall is opposite to the opening end of the receiving cavity 111. The width direction refers to the direction that is perpendicular to both the length direction and the wall thickness direction.

[0046] Among them, the light source component 20 located inside the lampshade housing 10 can emit light directly towards the arc-shaped light-transmitting part 13. In this case, the light emitted by the light source component 20 is directly emitted from the arc-shaped light-transmitting part 13, so the illuminance on the surface of the arc-shaped light-transmitting part 13 is greater.

[0047] Of course, the light emission direction of the light source component 20 can also be opposite to the curved light-transmitting part 13, or tilted relative to the curved light-transmitting part 13. In this case, the light is emitted from the curved light-transmitting part 13 after at least one reflection. Compared to the case where it faces the curved light-transmitting part 13 directly, this design of the light emission direction of the light source component 20 can reduce or even avoid eye stimulation when the user looks directly at the curved light-transmitting part 13, effectively protecting the eyes and improving the user experience.

[0048] In one possible scenario, the light source assembly 20 can be mounted on the second housing wall 113 and emit light toward the fourth housing wall of the lampshade housing 10.

[0049] In this configuration, the orthographic projection of the light source assembly 20 onto the first plane is located on the side where the orthographic projection of the second end 132 of the arc-shaped light-transmitting portion 13 onto the first plane is close to the orthographic projection of the first end 131 onto the first plane. The first plane is a plane parallel to the second shell wall 113. When the light source assembly 20 is positioned between the first end 131 and the second end 132, the position on the arc-shaped light-transmitting portion 13 directly facing the light source assembly 20 may have the highest illuminance. The combined effect of the light intensity of the light source assembly 20 and the thickness of the arc-shaped light-transmitting portion 13 may result in an indistinct or even absent gradient effect. However, in this embodiment, the light source assembly 20 is positioned on one side of the arc-shaped light-transmitting portion 13, effectively avoiding the influence of the position of the light source assembly 20 on the gradient effect. Positioning the light source assembly 20 on the side of the first end 131 of the arc-shaped light-transmitting portion 13, where the wall thickness is thinner, not only effectively avoids the weakening of the gradient effect by the position of the light source assembly 20 but also helps to further enhance the gradient effect. This is because the intensity of light is related to the optical path; the longer the optical path, the more light is absorbed, and the lower the corresponding light intensity. At this time, the light source assembly 20 is located on the side of the arc-shaped light-transmitting part 13. From the first end 131 to the second end 132 of the arc-shaped light-transmitting part 13, the trend of the change in optical path is consistent with the trend of the change in wall thickness of the arc-shaped light-transmitting part 13, which helps to achieve a stronger and more obvious gradient effect.

[0050] In another possible case, such as Figure 5 As shown, the light source assembly 20 can be mounted on the first housing wall 112 and emit light toward the third housing wall 114 of the lampshade housing 10.

[0051] In this case, the orthographic projection of the light source assembly 20 on the second plane is located on the side of the orthographic projection of the first end 131 of the arc-shaped light-transmitting part 13 on the second plane that is close to the orthographic projection of the second end 132 on the second plane, and the second plane is a plane parallel to the first shell wall 112.

[0052] like Figure 6As shown, in some embodiments of this application, the light source assembly 20 can be mounted on the first shell wall 112, and the tilt angle relative to the first shell wall 112 is 15°. At this time, the vertical distance between the light emission center of the light source assembly 20 and the second shell wall 113 is 31.6 mm, and the vertical distance between it and the third shell wall 114 is 15 mm. The radius of the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting part 13 is 29.8 mm, and the central angle corresponding to the inner arc of the arc-shaped cross-section of the arc-shaped light-transmitting part 13 is 58°.

[0053] When the light source assembly 20 is arranged according to the above-mentioned size relationship, the light emitted by the light source assembly 20 can cover and pass through the arc-shaped light-transmitting part 13 to a greater extent after reflection, so that more light can be emitted from the arc-shaped light-transmitting part 13, thereby increasing the illuminance of the arc-shaped light-transmitting part 13 and reducing light loss during the reflection process.

[0054] In some embodiments of this application, the lampshade housing 10 may be made entirely of a semi-transparent material, or the arc-shaped light-transmitting part 13 may be supported by a semi-transparent material, and other parts of the lampshade housing 10 may be made of a material with lower transparency, so as to further reduce the stimulation of the user's eyes during the use of the lamp module.

[0055] Translucent materials and materials with lower transparency can lead to significant light loss, especially when the light emitted from the light source assembly 20 needs to undergo at least one reflection before escaping from the curved light-transmitting part 13. Therefore, as... Figure 7 As shown, the lighting module may also include a reflector 30, the reflectivity of which is greater than that of the lampshade housing 10; the reflector 30 is located in the light-emitting direction of the light source assembly 20 and is used to reflect the light emitted from the light source assembly 20 so that it is emitted from the arc-shaped light-transmitting part 13.

[0056] Because the reflectivity of the reflector 30 is greater than that of the arc-shaped light-transmitting portion 13 and other parts of the lampshade housing 10, light loss during reflection can be reduced, thus improving optical utilization. The reflector 30 can be attached to the inner wall of the lampshade housing 10, for example, in... Figure 8 In the lampshade body 11, the light source assembly 20 is fixed on the bottom wall and emits light towards the opening end of the receiving cavity 111 (i.e., the position where the lampshade cover plate 12 is located). The reflector 30 is a reflective paper, which is attached to the lampshade cover plate 12.

[0057] In some embodiments, such as Figure 6 and Figure 7As shown, the light source assembly 20 is tilted towards the direction that is further away from the arc-shaped light-transmitting part 13 and closer to the reflector 30. The light emitted by the tilted light source assembly 20 can cover and pass through the arc-shaped light-transmitting part 13 to a greater extent after reflection, so that more light can be emitted from the arc-shaped light-transmitting part 13, thereby increasing the illuminance of the arc-shaped light-transmitting part 13 and reducing light loss during the reflection process.

[0058] In some embodiments of this application, such as Figure 9 As shown, the lighting module may also include a heat sink 40 located inside the lamp cover housing 10; the light source assembly 20 is assembled on the heat sink 40 and dissipates heat through the heat sink 40.

[0059] The heat sink 40 can achieve heat dissipation through at least one of the following materials and structures. For example, the heat sink 40 can be made of metals or alloys such as aluminum. Metals have good thermal conductivity, thus dissipating heat faster. Since heat is generated while emitting light, mounting the light source assembly 20 on the heat sink 40 can dissipate heat in a timely and effective manner, avoiding safety hazards.

[0060] In some embodiments of this application, such as Figure 10 As shown, the heat sink 40 includes a support portion 41 and a locking portion 42; at least one of the support portion 41 and the locking portion 42 extends along the length direction of the light source assembly 20, wherein the support portion 41 is fitted to the lamp cover housing 10, and the locking portion 42 is connected to the support portion 41; the light source assembly 20 is locked to the locking portion 42.

[0061] The support portion 41 of the heat sink 40 is connected to the lampshade housing 10, serving to fix and support it; the engaging portion 42 is connected to the light source assembly 20, serving to install and limit its position. The support portion 41 and the engaging portion 42 can be made of metal, such as aluminum, which has good thermal conductivity and helps improve heat dissipation.

[0062] Among them, such as Figure 10 As shown, both the support portion 41 and the engaging portion 42 extend in a direction parallel to the length direction of the light source assembly 20, thereby providing stable support and heat dissipation for the entire light source assembly 20.

[0063] In some embodiments of this application, such as Figure 11 As shown, the support part 41 includes a first wall 411, which is connected to the engaging part 42, and the light source assembly 20 is attached to the first wall 411.

[0064] The light source assembly 20 is attached to the first wall 411 of the support portion 41, meaning that most or even all of the area of ​​one surface of the light source assembly 20 is abutting or in contact with the first wall 411. At this time, as... Figure 11As shown, the placement direction of the first wall 411 is consistent with the placement direction of the light source assembly 20, both being inclined towards the direction further away from the arc-shaped light-transmitting part 13 and closer to the reflector 30. The first wall 411 can be fixed to the lampshade housing 10 by connecting it to other components, or both ends of the first wall 411 can be directly connected to or abutted against the lampshade housing 10 for fixation.

[0065] In the embodiments of this application, such as Figure 11 As shown, the support may also include a second wall and a third wall, both of which are connected to the first wall 411, and the first wall 411, the second wall 412 and the third wall 413 together form a cavity.

[0066] The first wall 411 and the second wall 412 of the support portion 41 are adjacent and connected, wherein the second wall 412 is also connected to the bottom wall of the lampshade body 11, so that the first wall 411 and the second wall 412 can form an angle of 15°. At this time, the light source assembly 20 emits light towards the outlet end of the receiving cavity 111. Since the light is emitted towards the opening end of the receiving cavity 111 and needs to be reflected before being emitted from the arc-shaped light-transmitting part 13, placing the light source assembly 20 on the first wall 411 can change the light emission direction of the light source assembly 20 compared to making the light emission of the light source assembly 20 perpendicular to the bottom wall, so that the light emission direction is inclined to the bottom wall, thereby allowing more light to be emitted from the arc-shaped light-transmitting part 13.

[0067] The tilt angle between the second wall 412 and the first wall 411 cannot be too large, otherwise the light may be emitted directly from the arc-shaped light-transmitting part 13 without reflection, causing glare when the user looks directly at the arc-shaped light-transmitting part 13. At the same time, the tilt angle between the second wall 412 and the first wall 411 cannot be too small, otherwise the light may return to the position of the light source assembly 20 after reflection instead of being emitted from the arc-shaped light-transmitting part 13, causing light loss. Therefore, this embodiment provides a suitable tilt angle: 15°. At a tilt angle of 15°, most of the light emitted by the light source assembly 20 can be emitted from the arc-shaped light-transmitting part 13 after reflection, thereby ensuring the illuminance of the arc-shaped light-transmitting part 13.

[0068] like Figure 11 As shown, in some embodiments of this application, the end of the first wall 411 near the arc-shaped light-transmitting part 13 is connected to the end of the second wall 412 near the arc-shaped light-transmitting part 13, and the two ends of the third wall 413 are respectively connected to the ends of the first wall 411 away from the arc-shaped light-transmitting part 13 and the ends of the second wall 412 away from the arc-shaped light-transmitting part 13.

[0069] At this point, the support portion 41 is a triangular prism structure formed by the first wall 411, the second wall 412, and the third wall 413, and a triangular prism-shaped cavity is formed between the first wall 411, the second wall 412, and the third wall 413. The presence of this cavity increases the contact area between the support portion 41 and the air, improves the heat dissipation effect, and also reduces the weight of the heat sink 40, saving materials and reducing costs.

[0070] In some embodiments of this application, such as Figure 12 As shown, the engaging part 42 includes a first hook 421 and a second hook 422. The first hook 421 and the second hook 422 are arranged opposite to each other and are both connected to the support part 41. There is a gap 423 between the first hook 421 and the second hook 422, and the light source assembly 20 is engaged into the gap 423.

[0071] The orthographic projection of the light source assembly 20 on the second wall 412 of the support 41 overlaps with the orthographic projection of the first hook 421 on the second wall 412, and also overlaps with the orthographic projection of the second hook 422 on the second wall 412. The light source assembly 20 can be inserted into the gap 423 between the first hook 421 and the second hook 422 along the length direction, and is hooked by the first hook 421 and the second hook 422 in the direction perpendicular to the second wall 412, and cannot be disengaged from the gap 423.

[0072] In some embodiments, after the light source assembly 20 is engaged in the gap 423 between the first hook 421 and the second hook 422, the light source assembly 20 can also be connected to the second wall 412 of the support portion 41, thereby more securely fixing it in the gap 423. Exemplarily, the light source assembly 20 can be adhered to the second wall 412.

[0073] like Figure 12 Taking the first hook 421 as an example, it may include a connecting plate and a limiting plate. One end of the connecting plate is perpendicularly connected to the second wall 412 of the support portion 41, and the limiting plate is perpendicularly connected to the other end of the connecting plate on the side of the first hook 421 near the second hook 422. The second hook 422 has the same structure as the first hook 421 and is arranged opposite to it. Therefore, when the light source assembly 20 is inserted into the gap 423 between the first hook 421 and the second hook 422, the two connecting plates will limit the direction of the light source assembly 20, causing it to emit light in a direction perpendicular to the second wall 412 of the support portion 41.

[0074] In some cases, such as when there is insufficient space on both sides of the heat sink 40 in the length direction, the light source assembly 20 needs to enter the gap 423 between the first hook 421 and the second hook 422 along a direction perpendicular to the second wall 412 of the support portion 41. In this case, the two limiting plates will block the entry of the light source assembly 20. Therefore, in some embodiments, the ends of the two limiting plates that are close to each other are provided with slopes. For any slope on the limiting plate, it is inclined in such a way that the farther away from the connecting plate corresponding to the limiting plate, the closer to the second wall 412 of the support portion 41. The arrangement of these two slopes facilitates the entry of the light source assembly 20 into the gap 423 between the first hook 421 and the second hook 422 from a direction perpendicular to the second wall 412 of the support portion 41.

[0075] In some embodiments of this application, such as Figure 13 As shown, the light source assembly 20 may include a circuit board 21 and a light-emitting element 22. The light-emitting element 22 is fixed on the side of the circuit board 21 away from the support portion 41 and is electrically connected to the circuit board 21. The light-emitting element 22 is exposed from the gap 423 between the first hook 421 and the second hook 422 and emits light.

[0076] The number of light-emitting elements 22 can be multiple, and the multiple light-emitting elements 22 are spaced apart along the length direction of the circuit board 21. Each light-emitting element 22 is electrically connected to the circuit board 21, so that it can emit light or stop emitting light under the control of the circuit board 21. In the embodiments of this application, such as Figure 13 As shown, the first hook 421 and the second hook 422 hook the light source assembly 20, which actually hooks the circuit board 21, while the light-emitting element 22 can be exposed from the gap 423 between the first hook 421 and the second hook 422.

[0077] For example, the orthographic projection of the light-emitting element 22 on the first wall 411 of the support portion 41 is located between the orthographic projection of the first hook 421 on the first wall 411 and the orthographic projection of the second hook 422 on the first wall 411, and does not overlap with either of them. Therefore, the first hook 421 and the second hook 422 will not block the light-emitting direction of the light-emitting element 22.

[0078] In some embodiments, the first hook 421 and the second hook 422 are perpendicularly connected to the first wall 411, and the height of the light-emitting element 22 is lower than the height of the first hook 421 and the second hook 422, with the height direction being the thickness direction of the first wall 411. Therefore, when a user looks directly at the light source assembly through the arc-shaped light-transmitting part 13, the light-emitting element 22 will be blocked by the first hook 421, thereby avoiding glare.

[0079] In the embodiments of this application, such as Figure 14As shown, the outer and / or inner surfaces of the arc-shaped light-transmitting portion 13 have a wave-like texture 133, the extension direction of which is parallel to the length direction of the light source assembly 20. The wave-like texture 133 can diffuse light, making the light emitted from the arc-shaped light-transmitting portion 13 more uniform along the length direction of the light source assembly 20.

[0080] There is a gap 423 between adjacent light-emitting elements 22, which will cause dark areas between adjacent light-emitting elements 22. By setting a waveform texture and making the extension direction of the waveform texture 133 parallel to the length direction of the light source assembly 20, the light emitted by each light-emitting element 2 can be diffused in the length direction, so that the light emission effect of the arc-shaped light-transmitting part 13 in the length direction is more uniform and there will be no light and dark alternation.

[0081] See also Figure 15 The waveform texture 133 may include a plurality of protrusions 1331 arranged along the length of the light source assembly 20, each protrusion 1331 protruding outward from the lampshade housing 10, each protrusion 1331 having a width of 1.5 mm and a height of 0.2 mm.

[0082] It should be noted that, within certain limits, the smaller the size and the greater the number of protrusions 1331 on the surface of the arc-shaped light-transmitting part 13, the better the diffusion effect of the wave texture 133. However, the size of the protrusions 1331 cannot be too small, otherwise it will be close to a plane and will not be able to achieve the diffusion effect.

[0083] In this embodiment, the protrusion 1331 can be arc-shaped, with a protrusion height of 0.2 mm and a width (i.e., the distance between the two ends of the arc) of 1.5 mm. Experimental verification shows that the protrusion 1331 with the above-mentioned shape and size provides the most uniform dispersion effect for the light emitted from the arc-shaped light-transmitting part 13.

[0084] In summary, the lighting module provided in this application alters the light transmittance and shading properties of the curved light-transmitting portion by adjusting its wall thickness. A thinner wall results in higher light transmittance, weaker shading, stronger optical effects, higher illuminance on the outer surface of the curved light-transmitting portion, and a more pronounced visual effect; conversely, a thicker wall reduces these effects. Based on this design, this application provides a structure-based light control method that adjusts the required surface illuminance by rationally controlling the wall thickness, thereby achieving the desired gradient lighting effect.

[0085] This application also provides an electrical appliance, which includes the lighting module described in any of the above embodiments. The electrical appliance can be a lighting appliance, such as a ceiling light, chandelier, wall light, ambient light, etc.; or it can be other appliances with lighting functions, such as a bathroom heater, refrigerator, etc.

[0086] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0087] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A lighting module, characterized in that, The lighting module includes a lampshade housing (10), and a light source assembly (20) and a reflector (30) located inside the lampshade housing (10), wherein the reflectivity of the reflector (30) is greater than that of the lampshade housing (10); The lampshade housing (10) includes an arc-shaped light-transmitting part (13). The reflector (30) is located in the light-emitting direction of the light source assembly (20) and is used to reflect the light emitted from the light source assembly (20) so that it is emitted from the arc-shaped light-transmitting part (13). The light source assembly (20) includes a circuit board (21) and a plurality of light-emitting elements (22). The plurality of light-emitting elements (22) are spaced apart along the length direction of the circuit board (21). There is a gap (423) between adjacent light-emitting elements (22). Each light-emitting element (22) is electrically connected to the circuit board (21), so that each light-emitting element (22) can emit light or stop emitting light under the control of the circuit board (21). The arc-shaped light-transmitting portion (13) has an arc-shaped cross-section, the curvature of which points inward toward the interior of the lampshade housing (10), so that the light source assembly (20) is located on the convex side of the arc-shaped cross-section. The outer and / or inner surfaces of the arc-shaped light-transmitting portion (13) have a wave-like texture (133), the extension direction of which is parallel to the length direction of the light source assembly (20). The arc-shaped light-transmitting portion (13) has a first end (131) and a second end (132) opposite each other in the extension direction of the arc-shaped cross-section. At the two ends (132), from the first end (131) to the second end (132), the wall thickness of the arc-shaped light-transmitting part (13) increases. The light source assembly (20) is disposed on one side of the first end (131) where the wall thickness of the arc-shaped light-transmitting part (13) is thinner, so that the change trend of the optical path of the light emitted by the light source assembly (20) is consistent with the change trend of the wall thickness of the arc-shaped light-transmitting part (13), thereby making the illuminance of the light emitted by the light source assembly (20) gradually change when it exits through the arc-shaped light-transmitting part (13).

2. The lighting module according to claim 1, characterized in that, The central angle corresponding to the inner arc of the arc-shaped cross section of the arc-shaped light-transmitting part (13) is 58°. The ratio of the wall thickness of the first end (131) to the wall thickness of the second end (132) is 0.4~0.

5. The inner arc is the arc on the arc-shaped cross section that is further away from the interior of the lampshade housing (10).

3. The lighting module according to claim 2, characterized in that, The wall thickness of the first end (131) of the arc-shaped light-transmitting part (13) is 1.5 mm, and the wall thickness of the second end (132) is 3.2 mm.

4. The lighting module according to any one of claims 1-3, characterized in that, The arc-shaped light-transmitting part (13) extends parallel to the length direction of the light source assembly (20), and the arc-shaped cross section is a cross section perpendicular to the length direction.

5. The lighting module according to claim 4, characterized in that, The lampshade housing (10) has a first shell wall (112), a second shell wall (113), a third shell wall (114) and a fourth shell wall extending along the length direction. The width direction of the first shell wall (112) is perpendicular to the width direction of the second shell wall (113). The third shell wall (114) is opposite to the first shell wall (112), and the fourth shell wall is opposite to the second shell wall (113). The second end (132) of the arc-shaped light-transmitting part (13) is connected to the first shell wall (112), and the first end (131) is connected to the second shell wall (113); The light source assembly (20) is mounted on the second shell wall (113) and emits light toward the fourth shell wall of the lampshade housing (10).

6. The lighting module according to claim 5, characterized in that, The radius of the inner arc of the arc-shaped cross section of the arc-shaped light-transmitting part (13) is 29.8 mm, and the central angle corresponding to the inner arc of the arc-shaped cross section of the arc-shaped light-transmitting part (13) is 58°. The inner arc is the arc on the arc-shaped cross section that is further away from the interior of the lampshade housing (10).

7. The lighting module according to claim 1, characterized in that, The light source assembly (20) is tilted in a direction that is further away from the arc-shaped light-transmitting part (13) and closer to the reflector (30).

8. The lighting module according to claim 7, characterized in that, The lighting module also includes a heat sink (40) located inside the lamp cover housing (10). The light source assembly (20) is mounted on the heat sink (40) and dissipates heat through the heat sink (40).

9. The lighting module according to claim 8, characterized in that, The heat dissipation component (40) includes a support portion (41) and a locking portion (42). At least one of the support portion (41) and the engaging portion (42) extends along the length direction of the light source assembly (20), wherein the support portion (41) is fitted to the lampshade housing (10), and the engaging portion (42) is connected to the support portion (41); The light source assembly (20) engages with the engaging part (42).

10. The lighting module according to claim 9, characterized in that, The support portion (41) includes a first wall (411), which is connected to the engaging portion (42), and the light source assembly (20) is attached to the first wall (411).

11. The lighting module according to claim 10, characterized in that, The support (41) also includes a second wall (412) and a third wall (413). The second wall (412) and the third wall (413) are both connected to the first wall (411), and the first wall (411), the second wall (412) and the third wall (413) together form a cavity.

12. The lighting module according to claim 9, characterized in that, The engaging part (42) includes a first hook (421) and a second hook (422), the first hook (421) and the second hook (422) are arranged opposite to each other and are both connected to the support part (41); There is a gap (423) between the first hook (421) and the second hook (422), and the light source assembly (20) is engaged in the gap (423).

13. The lighting module according to claim 1, characterized in that, The waveform texture (133) includes a plurality of protrusions (1331) arranged along the length of the light source assembly (20), each of the protrusions (1331) protruding toward the outside of the lampshade housing (10), and each of the protrusions (1331) has a width of 1.5 mm and a height of 0.2 mm.

14. An electrical appliance, characterized in that, The electrical appliance includes the lighting module according to any one of claims 1-13.

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