LED oven light and oven
By introducing light guides and heat insulation components into the LED oven light, and combining them with a heat sink, the problem of heat not being able to dissipate due to poor sealing performance is solved, thus achieving a long lifespan and clear illumination for the LED oven light.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KOLB HUIZHOU LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-26
AI Technical Summary
Existing LED oven lights suffer from poor sealing performance, resulting in ineffective heat dissipation, short lifespan, and frequent replacement.
An LED oven lamp was designed, comprising a lamp body, a heat sink, and a heat insulation section. The light is directed out and the high temperature is isolated through the light guide column and the heat insulation section, and the heat sink dissipates the heat, ensuring that the LED beads work within a suitable temperature range.
It extends the lifespan of LED oven lights, avoids frequent replacements, and provides clear lighting.
Smart Images
Figure CN224414970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oven technology, specifically to an LED oven light and an oven. Background Technology
[0002] Ovens typically require lighting, but ordinary lights cannot withstand the high temperatures inside. Existing LED oven lights use LED panels covered by a glass cover to allow light to pass through and insulate against heat. However, these lights generally suffer from the following problems: due to the high temperature inside the oven and the close proximity of the glass cover to the LED panel, the sealing at the connection point is poor, resulting in limited heat insulation. Consequently, the LED panel receives a significant amount of heat, and its poor heat dissipation prevents the heat from dissipating. Since ovens operate at high temperatures for extended periods, these LED oven lights have a short lifespan and require frequent replacement. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an LED oven light.
[0004] This utility model discloses an LED oven light, including a lamp body, a heat sink, and a heat insulation part. The lamp body includes a shell, a PCB board, a plurality of LED beads, and a light guide column. One side of the shell has an inner cavity, the PCB board is fixed in the inner cavity, the plurality of LED beads are disposed on the PCB board and electrically connected to the PCB board, and the light guide column has a light-inlet end and a light-outlet end. The light-inlet end is embedded in the inner cavity and attached to the LED beads. The heat sink is disposed on the side of the shell away from the inner cavity, the heat insulation part passes through the light guide column and is fixedly connected to the shell, and the light-outlet end passes through the heat insulation part.
[0005] According to one embodiment of the present invention, the heat sink includes a base and a plurality of heat sinks. One end of the base is fixedly disposed on the shell, and the other end of the base is provided with a plurality of heat sinks.
[0006] According to one embodiment of the present invention, the end of the light-incident end is a plane, and the end of the light-outcident end is an arc surface.
[0007] According to one embodiment of this utility model, the arc surface is a frosted surface.
[0008] According to one embodiment of the present invention, the heat insulation part includes a box and a heat insulation body. The heat insulation body is embedded inside the box and has a through channel along the axial direction. The box is fixedly connected to the shell, and the light guide column passes through the channel and the light-emitting end passes out from the box.
[0009] According to one embodiment of the present invention, the box body includes a box cover and an outer shell, one side of the box cover is detachably connected to the outer shell, and the other side of the box cover is detachably connected to the outer shell.
[0010] According to one embodiment of the present invention, the heat insulation material is heat-insulating rock wool.
[0011] This utility model also protects an oven, including a furnace chamber, an oven shell, a light-transmitting part, and an LED oven light. The furnace chamber is located inside the oven shell, and one end of the furnace chamber forms a space between it and the oven shell. The furnace chamber has a cavity, and a light-transmitting opening is provided on the wall of the furnace chamber facing the space. The light-transmitting opening connects the space and the cavity, and the light-transmitting part covers the light-transmitting opening. The LED oven light is installed in the space, and the light-emitting end faces the light-transmitting opening.
[0012] According to one embodiment of the present invention, it further includes a first mounting shell and a second mounting shell, each having an opening at one end; the first mounting shell is located within the interlayer space, and the end of the first mounting shell with the opening is fixed to the furnace chamber, with the opening of the first mounting shell facing the light-transmitting port; the second mounting shell is located inside the first mounting shell, and the opening of the second mounting shell also faces the light-transmitting port; the lamp body and the heat insulation part are both located inside the second mounting shell, while the heat sink is exposed outside the first mounting shell.
[0013] According to one embodiment of the present invention, the second mounting shell includes a bent wall and a frame, the bent wall and the frame surround each other, and the end of the bent wall near the opening is bent inward into the frame.
[0014] The beneficial effects of this invention are as follows: Compared with the prior art, when the LED oven light is powered on, the LED beads on the PCB board emit light. The light enters the light guide column through the light-incident end, undergoes multiple reflections and refractions inside the light guide column, and finally exits from the light-out end, illuminating the interior of the oven chamber. This provides clear illumination for the user, making it easy to observe the cooking status of the food. The heat insulation component prevents the LED beads from being subjected to excessive heat generated inside the oven chamber. Simultaneously, the heat sink dissipates the heat generated by the LED beads during operation, ensuring that the LED beads operate within a suitable temperature range, extending their lifespan, and eliminating the need for frequent LED bead replacements. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is a 3D view of the LED oven light in Example 1;
[0017] Figure 2 This is an exploded view of the LED oven light in Example 1;
[0018] Figure 3This is a three-dimensional schematic diagram of the lamp body in Embodiment 1;
[0019] Figure 4 This is a cross-sectional view of the LED oven light in Example 1;
[0020] Figure 5 This is a three-dimensional view of the light guide column in Example 1;
[0021] Figure 6 This is a three-dimensional schematic diagram of the oven in Example 2;
[0022] Figure 7 This is a cross-sectional view of the oven in Example 2;
[0023] Figure 8 This is a schematic diagram of the LED oven light installed in the second mounting housing in Embodiment 2;
[0024] Figure 9 This is a schematic diagram showing the separation of the first mounting shell and the second mounting shell in Embodiment 2;
[0025] Figure 10 This is a perspective view of the second mounting shell in Embodiment 2.
[0026] Explanation of reference numerals in the attached figures
[0027] 10. LED oven light;
[0028] 1. Lamp body; 11. Housing; 111. Inner cavity; 12. PCB board; 13. LED beads; 14. Light guide column; 141. Light input end; 1411. Planar surface; 142. Light output end; 1421. Arc surface;
[0029] 2. Heat sink; 21. Base; 22. Heat sink fins;
[0030] 3. Insulation section; 31. Enclosure; 311. Enclosure cover; 312. Outer shell; 32. Insulation body; 321. Passageway;
[0031] 20. Furnace chamber; 201. Cavity; 202. Light-transmitting opening;
[0032] 30. Oven exterior;
[0033] 40. Light-transmitting part;
[0034] 50. First mounting shell;
[0035] 60. Second mounting shell; 601. Bent wall; 602. Frame
[0036] 100. Mezzanine space. Detailed Implementation
[0037] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0038] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0039] Example 1
[0040] Please see Figures 1 to 4 As shown, Figure 1 A 3D diagram of an LED oven light. Figure 2 This is an exploded view of an LED oven light. Figure 3 This is a 3D view of the lamp body. Figure 4 This is a cross-sectional view of an LED oven light. This embodiment discloses an LED oven light, including a lamp body 1, a heat sink 2, and a heat insulation part 3. The lamp body 1 includes a housing 11, a PCB board 12, a plurality of LED beads 13, and a light guide post 14. One side of the housing 11 is provided with an inner cavity 111, and the PCB board 12 is fixed in the inner cavity 111. The plurality of LED beads 13 are disposed on the PCB board 12 and are all electrically connected to the PCB board 12. The light guide post 14 has a light-inlet end 141 and a light-outlet end 142. The light-inlet end 141 is disposed in the inner cavity 111 and attached to the plurality of LED beads 13. The heat insulation part 3 passes through the light guide post 14 and is fixedly connected to the housing 11, and the light-outlet end 142 passes through the heat insulation part 3. The heat sink 2 is disposed on the side of the housing 11 away from the inner cavity 111.
[0041] In practical applications, when the LED oven light is powered on, the LED beads 13 on the PCB board 12 emit light. The light enters the light guide column 14 through the light input end 141, undergoes multiple reflections and refractions inside the light guide column 14, and finally exits from the light output end 142, illuminating the interior of the oven and providing clear lighting for the user to easily observe the cooking status of the food. Because the LED beads 13 are isolated from the heat insulation part 3 by the light guide column 14, the high temperature inside the oven can be blocked from directly affecting the LED beads 13, so that the LED beads 13 will not be affected by the large amount of heat generated inside the oven. At the same time, the heat sink 2 dissipates the heat generated by the LED beads 13 during operation, ensuring that the operating temperature of the LED beads 13 is stable, thereby extending its service life and eliminating the need for frequent replacement of the LED beads 13.
[0042] Please see further. Figure 3 As shown, the housing 11 is injection molded from high-temperature resistant polyphenylene sulfide (PPS). The inner cavity 111 is a cylindrical cavity, and the PCB board 12 is located at the bottom of the inner cavity 111. Several LED beads 13 are soldered onto the PCB board 12 through a reflow soldering process and are electrically connected to the PCB board 12 to realize the transmission and control of electrical energy. The number of LED beads 13 can be one, two, or more, depending on actual needs, to increase the intensity of the light emitted by the LED beads 13. When there are multiple LED beads 13, they are evenly spaced and arranged on the PCB board 12.
[0043] Review Figure 2 and 3 As shown, the light guide post 14 is cylindrical, which can provide uniform light distribution and good light guiding effect. At the same time, the light-incident end 141 of the light guide post 14 can be fitted into the inner cavity 111 and fixed to the inner cavity 111 by a buckle, ensuring that the light-incident end 141 is in close contact with the LED bead 13. The heat sink 2 is connected to the housing 11 by a thread, which is simple to operate and easy to disassemble.
[0044] Furthermore, review Figure 2 As shown, in this embodiment, the heat sink 2 includes a base 21 and multiple heat sinks 22. One end of the base 21 is fixedly mounted on the housing 11, and multiple heat sinks 22 are distributed at the other end of the base 21. For example, the base 21 can be a circular plate structure or a square plate structure, and the material can be a metal with excellent thermal conductivity, such as aluminum or copper. The heat sinks 22 are plate-shaped or columnar, and are evenly distributed along a direction perpendicular to the surface of the base 21. By setting multiple heat sinks 22, the heat dissipation area is increased and the heat dissipation efficiency is improved.
[0045] Furthermore, in this embodiment, the LED bead 13 is a single color temperature light source or an adjustable color temperature light source. Specifically, the LED bead 13 can be a single color temperature light source, providing stable white or warm light to meet the basic color temperature requirements of different users; it can also be an adjustable color temperature light source, where the brightness of LED beads 13 with different color temperatures can be adjusted by a control circuit to achieve color temperature changes, adapting to the lighting needs of different food cooking, such as providing warmer light when baking bread and whiter light when baking meat, making it easier for users to observe the color changes of the food.
[0046] Further, please refer to Figure 5 As shown, Figure 5 This is a schematic diagram of the light guide column of the LED oven light in this embodiment. In this embodiment, the end of the light-incident end 141 is a flat surface 1411, and the end of the light-emitting end 142 is an arc-shaped surface 1421. The flat surface 1411 of the light-incident end 1411 is in close contact with the light-emitting surface of the LED bead 13, which is conducive to total internal reflection and efficient transmission of light. The arc-shaped surface 1421 of the light-emitting end 1421 facilitates better diffusion of light in all directions, improving the illumination range. Furthermore, the arc-shaped surface 1421 is a frosted surface, which can scatter light, making the light shine more softly and evenly into the oven, avoiding excessively concentrated and glaring light.
[0047] Furthermore, review Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the heat insulation part 3 includes a housing 31 and a heat insulation body 32. The heat insulation body 32 is embedded inside the housing 31. The heat insulation body 32 has a through channel 321 along the axial direction. The housing 31 is fixedly connected to one side of the housing 11. The light-emitting end 142 of the light guide column 14 passes through the channel 321 from the housing 11 and then passes out from the housing 11.
[0048] Specifically, the enclosure 11 is a rectangular hollow structure, and the material can be a high-temperature resistant material with good thermal insulation properties, such as stainless steel or ceramic; the insulation material is thermal insulation rock wool, which has good thermal insulation and heat preservation properties and can effectively block the transfer of heat. To achieve better thermal insulation effect, the insulation material should be completely embedded inside the enclosure.
[0049] Furthermore, in this embodiment, the box body 31 includes a box cover 311 and an outer shell 312. One side of the box cover 311 and the outer shell 312 are detachably connected, for example, by screws, to facilitate the assembly and disassembly of the heat insulation part 3. The other side of the box cover 311 is also detachably connected to the shell 11, for example, by screws, to facilitate the assembly and disassembly of the heat insulation part 3.
[0050] In practical applications, when the LED oven light is powered on, the PCB board 12 controls the LED beads 13 to emit light. Since the light-inlet end 141 of the light guide column 14 is a flat surface 1411, the light guide column 14 can be closely fitted with the light-emitting surface of the LED beads 13, which is conducive to total internal reflection and efficient transmission of light. When the light enters the light guide column 14 through the light-inlet end 141, it undergoes multiple reflections and refractions inside the light guide column 14 and finally exits from the light-outlet end 142. The end of the light-outlet end 142 is an arc surface 1421, and the arc surface 1421 is a frosted surface. The frosted surface can scatter the light, making the light softer and more evenly illuminate the inside of the oven, avoiding the light from being too concentrated and glaring. At the same time, the shape of the arc surface 1421 is also conducive to the diffusion of light and improves the lighting range. Through the heat insulation effect of the heat insulation body 32, which is made of heat-insulating rock wool, which has excellent heat insulation and heat preservation properties, the heat transfer is effectively blocked, thus preventing the high temperature inside the oven from directly affecting the LED beads 13. At the same time, the heat sink 2 dissipates the heat generated by the LED beads 13 during operation. Since the heat sink 22 is plate-shaped or columnar and evenly distributed on the surface of the substrate 21, the heat dissipation area is increased and the heat dissipation efficiency is improved, thereby ensuring that the LED beads 13 operate within a suitable temperature range and extending their service life.
[0051] Example 2
[0052] Please see Figure 6 and Figure 7 As shown, Figure 6 This is a schematic diagram of the oven in this embodiment. Figure 7 This is a cross-sectional view of the oven in the embodiment. This embodiment discloses an oven, including a furnace chamber 20, an oven shell 30, a light-transmitting part 40, and an LED oven light 10 described in Embodiment 1. The furnace chamber 20 is disposed inside the oven shell 30, and one end of the furnace chamber 20 and the inner wall of the oven shell 30 are spaced apart to form a sandwich space 100. That is, the furnace chamber 20 is installed inside the oven shell 30 and a space is left to form the sandwich space 100. The furnace chamber 20 has a cavity 201, and a light-transmitting opening 202 is opened on the wall of the furnace chamber 20 facing the sandwich space 100. The light-transmitting opening 202 connects the sandwich space 100 and the cavity 201. The light-transmitting part 40 is covered on the light-transmitting opening 202. The LED oven light is installed in the sandwich space 100, and the light-emitting end 142 faces the light-transmitting opening 202.
[0053] Specifically, the furnace chamber 20 and the oven shell 30 are made of stainless steel plates, and the furnace chamber 20 and the oven shell 30 are separated to form a sandwich space 100, which is used to install the LED oven light 10 and achieve thermal isolation between the LED oven light 10 and the furnace chamber 20.
[0054] Further, please refer to Figure 8 and Figure 9 , Figure 8This is a schematic diagram showing the LED oven light installed inside the second mounting housing. Figure 9 This is a schematic diagram showing the separation of the first mounting shell and the second mounting shell. In this embodiment, the oven also includes a first mounting shell 50 and a second mounting shell 60. Both the first mounting shell 50 and the second mounting shell 60 have an opening at one end. The first mounting shell 50 is fixed in the interlayer space 100, and the end of the first mounting shell 50 with the opening is fixedly installed in the furnace chamber 20, such that the opening of the first mounting shell 50 faces the light-transmitting port 202. The second mounting shell 60 is installed inside the first mounting shell 50, and the opening of the second mounting shell 60 also faces the light-transmitting port 202. The lamp body 1 and the heat insulation part 3 are both disposed inside the second mounting shell 60, while the heat sink 2 is exposed outside the first mounting shell 50, such that the lamp body 1 faces the light-transmitting port 202, and the light emitted by the lamp body 1 shines into the furnace chamber 20 through the light-transmitting part 40.
[0055] Specifically, the first mounting shell 50 is made of high-temperature resistant material and is fixed to the outer wall of the furnace chamber 20 by welding or screws, and then extends into the interlayer space 100, serving as the primary support structure for the LED oven light 10 and isolating the furnace chamber 20 from direct heat radiation. The second mounting shell 60 is nested inside the first mounting shell 50. The second mounting shell 50 is used to fix the LED oven light 10 and ensure that the light-emitting end 142 of the light guide column 14 is accurately aligned with the light-transmitting opening 202. Preferably, the wall thickness of the first mounting shell 50 is greater than the wall thickness of the second mounting shell 60, so as to further isolate the heat transfer inside the furnace chamber 20. The LED oven light 10 is fixed inside the second mounting shell 60 by screws. The light-emitting end 142 of the light guide column 14 extends to the light-transmitting opening 202, allowing light to pass through the light-transmitting part 40 to illuminate the cavity 201 of the furnace chamber 20. The PCB board 12 and the heat sink 2 are located on the side of the interlayer space 100 away from the furnace chamber 20, thereby avoiding the impact of high temperature on the operation of the PCB board 12 and the heat sink 2.
[0056] Please see Figure 10 , Figure 10 This is a schematic diagram of the second mounting shell. The second mounting shell 60 includes a bent wall 601 and a frame 602. The bent wall 601 and the frame 602 enclose each other, and the end of the bent wall 601 near the opening bends inward into the frame 602. By setting the bent wall 601, the heat in the furnace 20 can be further prevented from being directly conducted to the LED beads 13, thus preventing damage to the LED beads 13.
[0057] In practical applications, when the power is turned on and the oven is started, the LED bulbs 13 of the LED oven light 10 emit light. The light enters the light guide column 14 from the light input end 141, and after passing through the light guide column 14, the light finally exits from the light output end 142. The emitted light passes through the light transmission part 40 and shines into the cavity 201 of the oven chamber 20, allowing observation of the internal conditions of the cavity 201. Since the LED oven light 10 is installed in the interlayer space 100 between the oven chamber 20 and the oven outer shell 30, the LED oven light 10 is prevented from directly contacting the oven chamber 20 and being subjected to high temperatures, thus achieving thermal insulation. Furthermore, the wall thickness of the first mounting shell 50 is greater than that of the second mounting shell 60, creating a significant gap between the outer surfaces of the first mounting shell 50 and the second mounting shell 60, thereby further reducing heat conduction in the oven chamber 20. The PCB board 12 and the heat sink 2 are located on the side of the interlayer space 100 away from the furnace 20, thereby avoiding the impact of high temperature on the operation of the PCB board 12 and the heat sink 2. At the same time, the LED beads 13 are protected from the high temperature of the furnace 20, thereby ensuring that the LED beads 13 work within a suitable temperature range and extending their service life.
[0058] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. An LED oven light, characterized in that, include: The lamp body (1), heat sink (2), and heat insulation part (3) are provided. The lamp body (1) includes a housing (11), a PCB board (12), a plurality of LED beads (13), and a light guide column (14). The housing (11) has an inner cavity (111) on one side. The PCB board (12) is fixed in the inner cavity (111). The plurality of LED beads (13) are disposed on the PCB board (12) and electrically connected to the PCB board (12). The light guide post (14) has an input end (141) and an output end (142). The input end (141) is embedded in the inner cavity (111) and attached to the LED lamp bead (13). The heat sink (2) is located on the side of the housing (11) away from the inner cavity (111). The heat insulation part (3) passes through the light guide post (14) and is fixedly connected to the housing (11). The output end (142) passes through the heat insulation part (3).
2. The LED oven light according to claim 1, characterized in that, The heat sink (2) includes a base (21) and a plurality of heat sinks (22). One end of the base (21) is fixedly disposed on the housing (11), and a plurality of heat sinks (22) are distributed on the other end of the base (21).
3. The LED oven light according to claim 1, characterized in that, The light-inlet end (141) has a flat surface (1411) at one end, and the light-outlet end (142) has an arc surface (1421) at one end.
4. The LED oven light according to claim 3, characterized in that, The arc surface (1421) is a frosted surface.
5. The LED oven light according to claim 1, characterized in that, The heat insulation part (3) includes a box (31) and a heat insulation body (32). The heat insulation body (32) is embedded inside the box (31). The heat insulation body (32) has a through channel (321) along the axial direction. The box (31) is fixedly connected to the shell (11). The light guide column (14) passes through the channel (321), and the light emitting end (142) passes out from the box (31).
6. The LED oven light according to claim 5, characterized in that, The box (31) includes a box cover (311) and an outer shell (312). One side of the box cover (311) is detachably connected to the outer shell (312), and the other side of the box cover (311) is detachably connected to the shell (11).
7. The LED oven light according to claim 5, characterized in that, The insulation material (32) is insulating rock wool.
8. An oven, characterized in that, The oven includes a furnace chamber (20), an oven shell (30), a light-transmitting part (40), and an LED oven lamp (10) as described in any one of claims 1 to 7. The furnace chamber (20) is located inside the oven shell (30), and a sandwich space (100) is formed between one end of the furnace chamber (20) and the oven shell (30). The furnace chamber (20) has a cavity (201), and a light-transmitting opening (202) is provided on the wall of the furnace chamber (20) facing the sandwich space (100). The light-transmitting opening (202) connects the sandwich space (100) and the cavity (201). The light-transmitting part (40) covers the light-transmitting opening (202). The LED oven lamp (10) is installed in the sandwich space (100), and the light-emitting end (142) faces the light-transmitting opening (202).
9. The oven according to claim 8, characterized in that, It also includes a first mounting shell (50) and a second mounting shell (60), each of which has an opening at one end; the first mounting shell (50) is located in the interlayer space (100), and the end of the first mounting shell (50) with the opening is fixed to the furnace (20), with the opening of the first mounting shell (50) facing the light-transmitting port (202); the second mounting shell (60) is located inside the first mounting shell (50), and the opening of the second mounting shell (60) also faces the light-transmitting port (202); the lamp body (1) and the heat insulation part (3) are both located inside the second mounting shell (60), while the heat sink (2) is exposed outside the first mounting shell (50).
10. The oven according to claim 9, characterized in that, The second mounting shell (60) includes a bent wall (601) and a frame (602), wherein the bent wall (601) and the frame (602) surround each other, and the end of the bent wall (601) near the opening is bent into the frame (602).