LED renovated bulb

Abstract

The LED renovated bulb comprises an outer shell, a heat dissipation element and an LED light source assembly, the outer shell is integrally formed by light-transmitting plastic, and the heat dissipation element is tightly attached to the inner surface of the outer shell so that the heat dissipation effect can be improved. The light-transmitting plastic can be high-temperature-resistant transparent plastic which is not easy to crack, such as PP, PC, PMMA or PS. The LED renovated bulb can be a PAR lamp, a spotlight or a candle lamp and the like. According to the LED renovated bulb, a glass shell is changed into the plastic shell on the basis of an existing LED renovated bulb, the bulb is not prone to being broken, the safety of a product is improved, the weight of the bulb is reduced, and the transportation cost is further reduced.

Description

Technical Field

[0001] This application relates to an LED refurbishing light bulb. Background Technology

[0002] LED retrofit bulbs offer advantages such as high energy efficiency, long lifespan, and environmental friendliness. With the continuous maturation of LED technology, the application of LED retrofit bulbs in indoor lighting design and development is becoming increasingly widespread, representing a trend towards energy-saving, artistic, and user-friendly lighting. Existing LED retrofit bulbs (Retrofit Bulbs) have transparent glass casings. While glass casings offer the advantage of a crystal-clear appearance, creating a visual effect similar to crystal, they are also fragile, have poor safety, and are relatively heavy, resulting in high transportation costs. Utility Model Content

[0003] To overcome the aforementioned drawbacks, this application provides an LED refurbishment light bulb, comprising a housing, a heat dissipation element, and an LED light source assembly. The housing is integrally molded from translucent plastic, and the heat dissipation element is tightly attached to the inner surface of the housing to enhance heat dissipation. The translucent plastic can be a high-temperature resistant, crack-resistant, transparent or translucent plastic such as PP, PC, PMMA, or PS, to achieve a visual effect similar to glass or crystal. The LED refurbishment light bulb can be a PAR lamp, spotlight, or candle lamp, etc.

[0004] In one embodiment, the shape of the heat dissipation element matches the shape of the inner wall of the housing. Preferably, the heat dissipation element is made of a ductile metal such as aluminum or iron. For example, if the housing is cup-shaped, the heat dissipation element is cup-shaped to match it so as to make close contact with the inner surface of the housing.

[0005] In one embodiment, the heat dissipation element is integrally overmolded with the housing, with the housing tightly covering the heat dissipation element to enhance the heat dissipation effect. Another advantage of integral overmolding is that it saves space, making the entire refurbished light bulb more compact.

[0006] Alternatively, in another embodiment, the heat dissipation element may also be a discrete heat dissipation element.

[0007] In another embodiment, to enhance the aesthetic visual effect, the outer surface of the heat dissipation element is a mirror-reflective surface to achieve a visual effect similar to glass or crystal.

[0008] In one embodiment, the LED refurbishing bulb also includes, for example, a lamp holder from the GU series. The space inside the housing near the lamp holder is used to house the driving element of the light source. The driving element is typically composed of a circuit board or other electrical components. Therefore, the inner surface of the housing near the lamp holder has a masking pattern, such as a frosted pattern, so that the driving element appears blurred from the outside, without a cluttered look, thus enhancing the aesthetic appeal.

[0009] In another embodiment, the inner surface of the housing away from the lamp head has a refractive prism or refractive prism surface to achieve a visually crystal-like sparkling texture.

[0010] In another embodiment, the LED refurbishing bulb also includes a light-emitting element, which can be a light-emitting lens or a regular transparent housing. Because the plastic housing has better elasticity and ductility than a glass housing, the light-emitting element can be snapped onto the housing without the need for adhesive.

[0011] In one embodiment, the heat dissipation element is placed close to the light source to dissipate the heat generated by the light source in a timely manner. Furthermore, the inner surface of the housing is divided into three regions from the lamp holder to the opening: a first region, a second region, and a third region. The space enclosed by the first region corresponds to the placement space of the light source's driving element, the second region corresponds to the placement space of the light source, and the third region corresponds to the placement space of the light-emitting element. The heat dissipation element is placed close to the light source in the second region.

[0012] This application improves product safety by replacing the glass casing with a plastic casing on existing LED refurbishment bulbs, making the bulbs less prone to breakage and reducing their weight, thus lowering transportation costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0014] Figure 1 This is a perspective view of an LED refurbishing bulb according to an embodiment of this application;

[0015] Figure 2 This is another perspective view of an LED refurbishing bulb according to an embodiment of this application;

[0016] Figure 3 This is a front view of an LED refurbishing bulb according to an embodiment of this application;

[0017] Figure 4 yes Figure 3 The cross-sectional view of the LED refurbishing bulb shown in the AA direction;

[0018] Figure 5 This is an exploded view of an LED refurbishing light bulb according to an embodiment of this application;

[0019] Figure 6 This is a perspective view of another LED refurbishing light bulb according to one embodiment of this application;

[0020] Figure 7 yes Figure 6 Another 3D illustration of LED refurbished light bulbs;

[0021] Figure 8 yes Figure 6 The front view of the LED refurbished bulb shown;

[0022] Figure 9 yes Figure 8 The image shows a cross-sectional view of an LED refurbishing bulb in the BB direction. Detailed Implementation

[0023] The principles and spirit of this invention will now be described with reference to exemplary embodiments. It should be understood that these embodiments are described merely to enable those skilled in the art to better understand and implement this invention, and are not intended to limit the scope of this invention in any way.

[0024] Figure 1 and 2 The diagram shown is a structural schematic of an LED refurbishing bulb 100 at different angles according to an embodiment of this application.

[0025] Figure 3 for Figure 1 and Figure 2 The image shown is a front view of the LED refurbishment bulb 100. Figure 4 As shown Figure 3 A cross-sectional view of the LED refurbishment bulb 100 in the AA direction. Figure 5 for Figures 1 to 4 An exploded view of refurbished LED light bulbs. Figures 1 to 4 The driving circuit 160 of the light source assembly 130 is added to the components shown.

[0026] The following combination Figures 1 to 5 This application provides a detailed description of the LED refurbished light bulb. For example... Figures 1 to 5As shown, the LED refurbishing bulb 100 includes a roughly cup-shaped, one-piece molded translucent plastic housing 110, a heat dissipation element 120, an LED light source assembly 130, a lamp holder 140, and a light-emitting element 150. The housing is made of one-piece molded translucent plastic. The heat dissipation element 120 is in close contact with the inner surface of the housing 110 to increase heat dissipation.

[0027] Those skilled in the art will understand that the translucent plastic can be a high-temperature resistant, crack-resistant, transparent or translucent plastic such as PP, PC, PMMA, or PS; the specific material is not limited as long as it allows light to pass through. The lamp holder structure is not limited; it can be a screw-in lamp holder, a bayonet lamp holder such as the GU series, or other types of lamp holders. LED refurbished bulbs can be PAR lamps, spotlights, or candle lamps. To enhance aesthetics or for compatibility with existing glass-cased products, patterns can also be designed on the outer surface of the plastic casing, for example... Figure 1 The prismatic pattern shown.

[0028] In some cases, the light-emitting element 140 can be omitted, that is, the light-emitting element 140 is not required; the lamp holder 150 can also be omitted, for example, in the case of battery power.

[0029] In one embodiment, the shape of the heat dissipation element 120 matches the shape of the inner wall of the housing 110. Preferably, the heat dissipation element 120 is made of a ductile metal such as aluminum or iron. For example, when the shape of the housing 110 is as follows... Figures 1 to 4 In the cup-shaped case shown, the heat dissipation element 120 is cup-shaped to match the inner wall so as to make close contact with the inner surface of the housing 120.

[0030] Those skilled in the art should understand that, although Figures 1 to 5 The outer shell 110 shown is cup-shaped, but the technical solution of this application is not limited to this. The outer shell can be any shape such as a cuboid, ellipse, or cone.

[0031] In one embodiment, the heat dissipation element 120 is integrally overmolded with the housing 110, with the housing 110 tightly covering the heat dissipation element 120 to enhance heat dissipation. Another benefit of the integral overmolding is space saving, making the entire refurbished light bulb more compact. Of course, alternatively, the heat dissipation element 120 can also be a discrete heat dissipation element.

[0032] like Figure 4 As shown, the inner wall of the housing 110 has a groove 111 for accommodating the bent portion of the heat dissipation element 120 to secure the heat dissipation element 120.

[0033] The inner wall of the housing 110 has a support 112 at the location where the LED light source assembly 130 is placed to support the LED light source assembly 130, such as an aluminum substrate with one or more LED point light sources.

[0034] The inner wall of the outer casing 110 gradually thins at the lower part of the contact heat dissipation element 120, and is no longer a smooth cup shape. This further increases the effect of close contact between the outer casing 110 and the heat dissipation element 120. On the other hand, the gradual thinning of the outer casing 110 also increases the heat dissipation effect of the outer casing 120 itself, and further reduces the weight.

[0035] In another embodiment, to enhance the aesthetic visual effect, the outer surface of the heat dissipation element 120 is a mirror-reflective surface, so that when the user looks at the LED refurbishment bulb 100 through the casing, it achieves a visual effect like glass or crystal.

[0036] In one embodiment, the heat dissipation element 120 is placed close to the light source assembly 130 to dissipate the heat generated by the light source assembly 130 in a timely manner. Furthermore, the inner surface of the housing 110 is divided into three regions from the lamp holder 140 to the opening: a first region, a second region, and a third region. The space enclosed by the first region corresponds to the placement space of the light source driving element, the second region corresponds to the placement space of the light source, and the third region corresponds to the placement space of the light-emitting element. The heat dissipation element 120 is placed close to the light source in the second region. This way, the heat dissipation element 120 does not need to cover the entire inner surface of the housing 110, saving material costs.

[0037] exist Figure 5 In one embodiment shown, the LED refurbishing bulb 100 also includes a drive circuit 160 that powers the light source assembly 130. The space inside the housing 110 near the lamp holder is used to house the drive circuit 160, which is typically composed of a circuit board or other electrical components. Therefore, the portion of the inner surface of the housing 110 near the lamp holder 140 (as in the first region of the previous embodiment) has a masking pattern 113, such as a frosted pattern, to make the drive circuit 160 appear less cluttered from the outside, thus enhancing aesthetics. The masking pattern 113 can be a frosted pattern, fine ridges, or other shapes or patterns that serve a frosting or blurring effect.

[0038] Those skilled in the art will understand that a driver circuit is not a necessary component for refurbished LED bulbs; for example, AC LED bulbs do not require a driver power supply.

[0039] In another embodiment, the portion of the inner surface of the housing 110 away from the lamp head has a refractive prism or a refractive prism surface. Figures 1 to 5 (not shown in the image) to achieve a visually shimmering, crystal-like texture.

[0040] exist Figures 1 to 5 The light-emitting element 150 in the LED refurbishment bulb 100 shown can be a light-emitting lens, such as a spotlight or PAR lamp; or it can be a regular transparent housing, such as a candle lamp. Because the plastic housing 110 has better elasticity and ductility than the glass housing, the light-emitting element 150 can be snapped onto the housing 110 without the need for glue.

[0041] Figures 6 to 9 A schematic diagram of another LED refurbishing bulb 200 according to this application is shown. The LED refurbishing bulb 200 includes a roughly cup-shaped, one-piece molded light-transmitting plastic housing 210, a heat dissipation element 220, an LED light source assembly 230, a light-emitting element 250, and a lamp base 240. The housing is made of one-piece molded light-transmitting plastic, and its outer surface can be smooth or flat to facilitate easy removal during molding. The heat dissipation element 220 is in close contact with the inner surface of the housing 210 to increase heat dissipation.

[0042] like Figure 9 As shown in the cross-sectional view, the heat dissipation element 220 does not need to be spread across the entire inner surface of the plastic housing 210; only one layer of heat dissipation element 220 needs to be placed near the LED light source assembly 230. The heat dissipation element 220 can be a discrete component or it can be integrally formed with the plastic housing 210.

[0043] exist Figure 9 In the cross-sectional view shown, the inner surface of the housing 210, away from the lamp holder 240, has a refractive prism or refractive prism surface 260 to achieve a visually crystalline, sparkling texture. For simplicity, Figure 9 The driving circuit and the shielding pattern corresponding to the position of the driving circuit on the inner surface of the housing are omitted.

[0044] The present invention has been described above for purposes of illustration and description, but it is not intended to be exhaustive or limited to the disclosed forms. Many modifications and variations will arise in those skilled in the art; for example, features in the various embodiments may be combined with each other where technically permissible and without causing contradiction.

Claims

1. An LED refurbishing light bulb (100), characterized in that, It includes a housing (110), a heat dissipation element (120), and an LED light source assembly (130). The housing (110) is integrally molded from light-transmitting plastic. The heat dissipation element (120) is in close contact with the inner surface of the housing (110). The outer surface of the heat dissipation element (120) is a mirror reflective surface.

2. The LED refurbishing bulb (100) as described in claim 1, characterized in that, The shape of the heat dissipation element (120) matches the shape of the inner wall of the housing (110).

3. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The heat dissipation element (120) is integrally formed with the outer shell (110).

4. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The heat dissipation element (120) is a discrete heat dissipation element.

5. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The heat dissipation element (120) is made of metal.

6. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, It also includes a lamp head (140), and the portion of the inner surface of the housing (110) near the lamp head (140) has a masking pattern.

7. The LED refurbishing bulb (100) as described in claim 6, characterized in that, The inner surface of the housing (110) away from the lamp head (140) has a refractive prism or refractive prism surface.

8. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The heat dissipation element (120) is located close to the light source assembly (130).

9. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The LED refurbishing bulb (100) also includes a light-emitting element (150) and a snap-on lamp holder (140), wherein the light-emitting element (150) is snapped onto the housing (110).

10. The LED refurbishing bulb (100) as described in claim 1 or 2, characterized in that, The light-transmitting plastic is a transparent plastic.

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