A novel high light efficiency oven lamp

Abstract

The utility model discloses a novel high light efficiency's oven lamp, including LED light source, optical assembly and light guide stick, the LED light source adopts the fixed mounting of paster formula LED on the aluminum base heat sink and is located the lamp shell in the outside of furnace chamber, the optical assembly sets up between LED light source and light guide stick, the light that the LED light source emits is through optical assembly and is gathered into the small angle light beam and is shot into the incident end of light guide stick, light guide stick transmits light to the furnace chamber and realizes the illumination, the optical assembly includes but is not limited to the reflection cup and the lens. This oven lamp can improve light transmission efficiency significantly through the optimization optical structure, solves the problem that the light loss of existing LED oven lamp is serious, and the light efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of oven light technology, specifically a novel high-efficiency oven light. Background Technology

[0002] Currently, the mainstream light sources used for lighting in high-temperature equipment such as ovens, steam ovens, microwave ovens, hot air ovens, and air fryers are still traditional light sources such as G9 halogen lamps. With the development of LED technology, some equipment has begun to use LED light sources combined with glass light guides. The LEDs are placed in the low-temperature zone outside the oven cavity, and the light guide guides the light into the high-temperature cavity, enabling the application of LEDs in high-temperature environments. However, the emission angle of LED light sources is generally around 120 degrees. Light is reflected and refracted at the incident surface of the light guide and during transmission, resulting in significant energy loss. In existing technologies, only about 50% of the light energy ultimately enters the oven cavity for lighting, causing serious energy waste. To improve brightness, multiple high-power LEDs or increased power of a single LED are often required. This not only increases costs but also causes the LED's temperature to rise, affecting its lifespan and reliability.

[0003] Therefore, existing technologies suffer from problems such as low luminous efficiency, high energy waste, high cost, and short lifespan. Utility Model Content

[0004] In response to the above situation and to overcome the current technical defects, this utility model provides a novel high-efficiency oven light. By optimizing the optical structure, this oven light can significantly improve light transmission efficiency and solve the problems of severe light loss and low luminous efficiency in existing LED oven lights.

[0005] The technical solution adopted by this utility model is as follows: The novel high-efficiency oven light provided by this solution includes an LED light source, an optical component and a light guide rod. The LED light source adopts a surface-mount LED fixedly installed on an aluminum-based heat sink and located inside the lamp housing outside the oven cavity. The optical component is disposed between the LED light source and the light guide rod. The light emitted by the LED light source is focused into a small-angle beam by the optical component and then enters the incident end of the light guide rod. The light guide rod transmits the light to the oven cavity to achieve illumination.

[0006] Furthermore, the optical components include, but are not limited to, a reflector and a lens. The inner surface of the reflector includes, but is not limited to, a parabolic surface, an ellipsoidal surface, or a freeform surface. The LED light source is located at the focal point or focal region of the reflector. The reflector reflects and focuses the light emitted by the LED light source into a small-angle beam. The optical surface type of the lens includes, but is not limited to, a convex lens, a Fresnel lens, or an aspherical lens. The lens is used to focus the light emitted by the LED light source into a parallel or small-angle beam.

[0007] Furthermore, the light guide rod includes, but is not limited to, a glass light guide rod or a transparent ceramic light guide rod, the incident end face of which is a plane or a microstructure surface, used to receive the light beam emitted from the optical component.

[0008] Furthermore, the divergence angle of the small-angle beam is less than 15 degrees and no greater than 45 degrees, in order to reduce the reflection loss of light at the incident end face of the light guide and the refraction loss during transmission.

[0009] Furthermore, the LED light source is a high-temperature resistant LED chip, which is packaged on a heat dissipation substrate and placed in a low-temperature zone outside the furnace cavity, and connected to an external power supply through wires.

[0010] Furthermore, a heat sink for dissipating heat from the LED light source is installed at the bottom of the aluminum-based heat sink plate. The heat sink is provided with heat dissipation fins arranged circumferentially at equal intervals to ensure the heat dissipation performance of the LED light source.

[0011] The axial end face is in contact with the light source plate.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] 1. This oven lamp uses optical components to focus the wide-angle beam emitted by the LED light source into a small-angle beam, reducing light reflection loss on the incident surface of the light guide rod and the waste of light energy refracted on the surface due to insufficient total internal reflection angle during transmission inside the light guide rod, thereby improving light transmission efficiency.

[0014] 2. Compared with the existing direct-coupled light guide rod installation method, this oven light can effectively improve the light intensity inside the oven cavity under the same LED light source power, achieving high-efficiency energy-saving lighting.

[0015] 3. This oven light does not require multiple high-power LEDs or increased single-LED power to achieve the required brightness, reducing system cost and thermal management difficulty, and helping to extend the lifespan and reliability of the LED light source.

[0016] 4. This oven has a simple and compact structure, is easy to assemble, and is suitable for the lighting needs of various high-temperature equipment, with good versatility and practicality. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the novel high-efficiency oven lamp of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the novel high-efficiency oven lamp of this utility model. Figure 2 .

[0020] The components include: 1. LED light source; 2. Lens; 3. Light guide rod; 4. Reflector cup; 5. Furnace cavity; 6. Light beam; 7. Aluminum-based heat sink; 8. Heat sink. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0023] Example 1

[0024] As per the instruction manual Figure 1 As shown, the technical solution adopted by this utility model is as follows: This solution proposes a novel high-efficiency oven lamp, including an LED light source 1, a lens 2, and a light guide rod 3. The LED light source 1 is a surface-mount LED, fixedly installed on an aluminum-based heat sink 7, and located inside the lamp housing outside the oven cavity 5. A heat sink 8 for heat dissipation of the LED light source is installed at the bottom of the aluminum-based heat sink 7. The heat sink is provided with heat dissipation fins arranged circumferentially at equal intervals to ensure the heat dissipation of the LED light source. The lens 2 is an aspherical lens, and its optical axis is aligned with the center of the LED light source 1. The lens 2 focuses the light beam 6 emitted by the LED light source 1 with a divergence angle of about 120 degrees into a small-angle parallel beam with a divergence angle of less than 15 degrees. The light guide rod 3 is a high-transmittance glass rod, and its incident end face is precisely polished and aligned with the light outlet of the lens 2. After receiving the small-angle light beam 6, it transmits the light beam 6 to the inside of the oven cavity 5 through total internal reflection. In this embodiment, the light focusing effect of the lens 2 greatly reduces the reflectivity of light on the incident surface of the light guide rod 3, thereby improving the light energy utilization rate.

[0025] Example 2

[0026] As per the instruction manual Figure 2As shown, this embodiment provides a novel high-efficiency oven lamp, including an LED light source 1, a reflector cup 4, and a light guide rod 3. The LED light source 1 is located at the focal point of the ellipsoidal surface of the reflector cup 4. The inner surface of the reflector cup 4 is coated with a high-reflectivity metal film, which reflects and converges the light emitted by the LED light source 1 into a small-angle light beam 6 with a divergence angle of less than 10 degrees. The light beam 6 is then directly incident on the incident end of the light guide rod 3. The light guide rod 3 is made of high-temperature resistant glass material with a smooth outer surface, ensuring that the light beam 6 is transmitted to the oven cavity 5 with minimal loss. This embodiment utilizes the reflector cup 4 to achieve efficient light focusing, avoiding the dispersion problems that may exist with the use of lenses, resulting in higher luminous efficiency.

[0027] During the specific assembly, the LED light source 1 is first aligned and fixed with the optical components, lens 2 or reflector 4, and then precisely aligned and installed with the incident end of the light guide rod 3 to ensure that the light beam 6 is completely incident on the light guide rod 3. The light guide rod 3 extends into the high-temperature furnace cavity 5. The LED light source 1 is located on the aluminum-based heat sink 7 and is equipped with a heat sink 8 to dissipate heat.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel high-efficiency oven lamp, comprising an LED light source, optical components, and a light guide rod, characterized in that: The LED light source is a surface-mount LED fixedly installed on an aluminum-based heat sink and located inside a lamp housing outside the furnace cavity. The optical component is located between the LED light source and the light guide rod. The light emitted by the LED light source is focused into a small-angle beam by the optical component and then enters the incident end of the light guide rod. The light guide rod transmits the light into the furnace cavity to achieve illumination.

2. The novel high-efficiency oven lamp according to claim 1, characterized in that: The optical components include, but are not limited to, a reflector and a lens. The inner surface of the reflector includes, but is not limited to, a parabolic surface, an ellipsoidal surface, or a freeform surface. The LED light source is located at the focal point or focal region of the reflector. The reflector reflects and focuses the light emitted by the LED light source into a small-angle light beam. The optical surface type of the lens includes, but is not limited to, a convex lens, a Fresnel lens, or an aspherical lens. The lens is used to focus the light emitted by the LED light source into a parallel or small-angle light beam.

3. The novel high-efficiency oven lamp according to claim 1, characterized in that: The light guide rod includes, but is not limited to, a glass light guide rod or a transparent ceramic light guide rod, and its incident end face is a plane or a microstructure surface, used to receive the light beam emitted from the optical component.

4. The novel high-efficiency oven lamp according to claim 1, characterized in that: The divergence angle of the small-angle light beam is less than 15 degrees and not greater than 45 degrees.

5. A novel high-efficiency oven lamp according to claim 1, characterized in that: The LED light source is a high-temperature resistant LED chip. The LED light source is packaged on a heat dissipation substrate and placed in the low-temperature zone outside the furnace cavity. It is connected to an external power supply through wires.

6. A novel high-efficiency oven lamp according to claim 1, characterized in that: The bottom of the aluminum-based heat sink is equipped with a heat sink for dissipating heat from the LED light source, and the heat sink is provided with heat dissipation fins arranged circumferentially at equal intervals.

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