An LED oven light and its assembly method

Abstract

The present invention discloses an LED oven lamp and an assembly method thereof, and relates to the technical field of oven accessories. The technical scheme thereof mainly includes: a glass cover, a metal shell, a heat sink, a lens, a ceramic bracket and a PCB board equipped with LED lamp beads, the two ends of the ceramic bracket are respectively connected and fixed between the heat sink and the metal shell, the glass cover is threadedly connected to one end of the metal shell away from the heat sink, the ceramic bracket has an inner cavity, the PCB board is fixed on the heat sink located in the inner cavity, the ceramic bracket presses the lens on the PCB board, the lens is suitable for converging and guiding the light beam of the LED lamp beads to the glass cover, the metal shell is provided with a mounting portion that can be mounted in a groove of the oven chamber wall, and there is a heat insulation distance between the LED lamp beads and the mounting portion. The present invention can provide a lighting effect of cold white light inside the oven, and has the advantages of high color rendering index, low energy consumption and long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of oven accessories, and more particularly to an LED oven lamp and an assembling method thereof. Background Art

[0002] An oven is a sealed appliance used to bake food or dry products. It is divided into household appliances and industrial ovens. Household ovens can be used to process some pasta, and industrial ovens are a type of equipment used to dry products in industry. There are electric and gas ovens, also called ovens, drying boxes, etc.

[0003] In order to meet the needs of internal lighting in the oven, existing ovens are usually equipped with special oven lights. At present, most oven lights use glass tungsten filament lamps with strong high temperature resistance. However, this type of lamp has some problems, such as the low warm light color rendering index, which makes it impossible to accurately restore the true color of the food during the baking process and cannot meet the user's demand for high-quality lighting effects. In addition, the life of glass tungsten filament lamps is relatively short and the energy consumption is high, which not only increases the cost of use, but also limits the overall performance and user experience of the oven. Therefore, in view of these problems of existing oven lights, it is necessary to design an oven light with a high color rendering index, low energy consumption and long service life to meet users' expectations for high-quality lighting effects and high efficiency energy saving. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an LED oven lamp and an assembly method thereof, which can provide a cold white light lighting effect inside the oven and have the advantages of high color rendering index, low energy consumption and long service life.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an LED oven lamp, comprising a glass cover, a metal shell, a heat sink, a lens, a ceramic bracket and a PCB board equipped with LED lamp beads, the two ends of the ceramic bracket are respectively connected and fixed between the heat sink and the metal shell, the glass cover is threadedly connected to one end of the metal shell away from the heat sink, the ceramic bracket has an inner cavity, the PCB board is fixed on the heat sink located in the inner cavity, the ceramic bracket presses the lens on the PCB board, the lens is suitable for converging the light beam of the LED lamp bead and guiding it to the glass cover, the metal shell is provided with a mounting portion that can be mounted in a groove of the oven chamber wall, and there is a heat insulation distance between the LED lamp bead and the mounting portion.

[0006] In one of the embodiments, the PCB board is fixedly connected to the heat sink by a first bolt, an annular mounting platform is provided on the inner side of the ceramic bracket, and the annular mounting platform is fixedly connected to the heat sink by a second bolt, a clamping platform is provided on the outer side of the ceramic bracket, a limiting platform is provided on the ceramic bracket below the clamping platform, and a card that can be covered on the clamping platform and a limiting block that can be elastically pressed against the limiting platform are respectively provided on the metal shell.

[0007] In one embodiment, the heat sink includes an aluminum alloy substrate and heat sinks arranged in a circular array along a circumferential direction on the aluminum alloy substrate, the PCB board is provided with a notch groove for the first bolt to pass through, the ceramic bracket is provided with a connecting hole for the second bolt to pass through, and a threaded hole is provided between each adjacent two heat sinks at the corresponding positions of the notch groove and the connecting hole, the first bolt and the second bolt are respectively threadedly connected to their respective corresponding threaded holes, and a slot is provided on one side of the threaded hole.

[0008] In one of the embodiments, the lens includes a cylindrical support body and a lens fixed in the cylindrical support body, and the annular mounting platform presses the cylindrical support body against the PCB board and enables the LED lamp bead to be located in the cylindrical support body.

[0009] In one of the embodiments, the glass cover is provided with an external thread, and a plurality of clamping points are provided on the inner circumferential wall of the metal shell. The plurality of clamping points are distributed on the inner circumferential wall of the metal shell at intervals along the spiral line direction. The plurality of clamping points can be respectively inserted into the screw grooves at different positions of the external thread, and the clamping points are capsule-shaped.

[0010] In one of the embodiments, a plurality of hollow grooves communicating with the inner cavity are arranged on the outer peripheral wall of the ceramic bracket.

[0011] In one embodiment, the thermal insulation distance is 52mm-55mm.

[0012] A method for assembling an LED oven light, used to implement the assembly of any of the above-mentioned LED oven lights, comprises the following steps:

[0013] S1, fixing the PCB board on the heat sink through the first bolt connection;

[0014] S2. Place the lens on the PCB board and make the LED lamp bead and the lens coaxial;

[0015] S3, one end of the ceramic bracket is sleeved and fixed to the metal shell, so that the card is covered on the clamping platform, and the limiting block is pressed against the limiting platform;

[0016] S4, fixing the other end of the ceramic bracket to the heat sink through a second bolt, and making the ceramic bracket press the lens against the PCB board;

[0017] S5. Screw the glass cover into the metal shell in a rotating manner.

[0018] In summary, the present invention has the following beneficial effects: the present invention adopts LED lamp beads as light sources, and through the setting of lenses, ceramic brackets and thermal insulation distances, the thermal insulation distance can prevent heat conduction, improve heat dissipation efficiency, protect LED lamp beads and enhance structural stability. The lens can converge and guide the light emitted by the LED lamp beads, so that the light can be more concentratedly irradiated to the inside of the oven, thereby improving the utilization rate of light and lighting efficiency, and ensuring that the inside of the oven obtains a uniform and bright lighting effect. Therefore, the present invention can provide a cold white light lighting effect, effectively improve the color rendering index of the lighting inside the oven, reduce energy consumption, extend service life, ensure the concentration and uniform illumination of the light beam, thereby meeting the user's expectations for high-quality lighting effects and high-efficiency energy saving, and improving the overall performance and user experience of the oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an LED oven light according to an embodiment of the present application;

[0020] Figure 2 An exploded view of an LED oven light according to an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the structure of the metal shell of the LED oven light in the embodiment of the present application;

[0022] Figure 4 The structure of the ceramic bracket in the LED oven lamp of the embodiment of the present application is shown in FIG. Figure 1 ;

[0023] Figure 5 The structure of the ceramic bracket in the LED oven lamp of the embodiment of the present application is shown in FIG. Figure 2 ;

[0024] Figure 6 for Figure 2 Magnified view of section A in .

[0025] In the figure: 1, heat sink; 11, aluminum alloy substrate; 111, threaded hole; 112, slot; 12, heat sink; 2, ceramic bracket; 21, limit platform; 22, clamping platform; 23, annular mounting platform; 231, connecting hole; 3, metal shell; 31, mounting part; 311, annular flange part; 312, supporting piece; 32, clamping point; 33, limit block piece; 34, card; 4, glass cover; 5, PCB board; 6, LED lamp bead; 7, first bolt; 8, second bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides an LED oven lamp, comprising a glass cover 4, a metal shell 3, a heat sink 1, a lens, a ceramic bracket 2 and a PCB board 5 equipped with LED lamp beads 6. The two ends of the ceramic bracket 2 are respectively connected and fixed between the heat sink 1 and the metal shell 3, and the glass cover 4 is threadedly connected to the end of the metal shell 3 away from the heat sink 1. The ceramic bracket 2 has an inner cavity, and the PCB board 5 is fixed on the heat sink 1 located in the inner cavity. The ceramic bracket 2 presses the lens on the PCB board 5, and the lens is suitable for converging and guiding the light beam of the LED lamp bead 6 to the glass cover 4, and finally providing lighting for the oven. The metal shell 3 is provided with a mounting portion 31 that can be mounted in the groove of the oven chamber wall. The mounting portion 31 specifically includes an annular flange portion 311 arranged on the top edge of the metal shell 3 and an elastic support sheet 312 arranged on the outer side wall of the metal shell 3 below the annular flange portion 311. The support sheet 312 is naturally tilted outward along the circumferential direction, and the elastic support sheet 312 is arranged in a circular array along the circumferential direction of the metal shell 3. There is a heat-insulating distance between the LED lamp bead 6 and the mounting portion 31 .

[0028] Specifically, the PCB board 5 is provided with a positive electrode connection sheet and a negative electrode connection sheet electrically connected to the LED lamp bead 6, and the power supply voltage of the LED lamp bead 6 is 12V.

[0029] When the above-mentioned LED oven light is used, the LED oven light is inserted into the groove of the oven chamber wall. During the insertion process, the elastic support sheet 312 contracts so that the metal shell 3 of the LED oven light can be smoothly inserted. After being inserted into place, the elastic support sheet 312 rebounds and tilts up. One side of the oven chamber wall is tightly attached to the annular flange portion 311, and the other side of the oven chamber wall is tightly attached to the elastic support sheet 312. Finally, the positive electrode connection sheet and the negative electrode connection sheet are directly connected to the power output end of the control circuit part of the oven, which can facilitate the control circuit part to directly control the LED lamp bead 6.

[0030] In the above method, by using LED lamp beads 6 as light sources, and through the setting of lenses, ceramic brackets 2 and thermal insulation distances, the thermal insulation distance can prevent heat conduction, improve heat dissipation efficiency, protect LED lamp beads 6 and enhance structural stability. The lens can converge and guide the light emitted by the LED lamp beads 6, so that the light can be more concentratedly irradiated to the interior of the oven, thereby improving the utilization rate of light and lighting efficiency, and ensuring that the interior of the oven obtains a uniform and bright lighting effect. Therefore, the present invention can provide a cold white light lighting effect, effectively improve the color rendering index of the lighting inside the oven, reduce energy consumption, extend service life, and ensure the concentration and uniform illumination of the light beam, thereby meeting the user's expectations for high-quality lighting effects and high-efficiency energy saving, and improving the overall performance and user experience of the oven.

[0031] In this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the PCB board 5 is fixedly connected to the heat sink 1 by a first bolt 7, an annular mounting platform 23 is arranged on the inner side of the ceramic bracket 2, and the annular mounting platform 23 is fixedly connected to the heat sink 1 by a second bolt 8, a clamping platform 22 is arranged on the outer side of the ceramic bracket 2, a limiting platform 21 is arranged on the ceramic bracket 2 below the clamping platform 22, and a card 34 that can be covered on the clamping platform 22 and a limiting block 33 that can be elastically pressed against the limiting platform 21 are respectively arranged on the metal shell 3.

[0032] In the above method, the PCB board 5 is fixedly connected to the heat sink 1 by the first bolt 7, thereby ensuring the stability between the PCB board 5 and the heat sink 1. Compared with the snap connection in the traditional method, it effectively prevents the loosening problem caused by vibration or temperature change, and improves the overall stability and reliability. The annular mounting platform 23 arranged on the inner side of the ceramic bracket 2 is fixedly connected to the heat sink 1 by the second bolt 8, thereby enhancing the connection strength between the ceramic bracket 2 and the heat sink 1. The clamping platform 22 arranged on the outer side of the ceramic bracket 2 cooperates with the card 34 on the metal shell 3, and the limit platform 21 cooperates with the limit block 33, thereby realizing a quick and stable connection between the metal shell 3 and the ceramic bracket 2, simplifying the assembly process, improving production efficiency, and also facilitating subsequent maintenance or replacement.

[0033] In this embodiment, Figure 2 , Figure 5 and Figure 6 As shown, the heat sink 1 includes an aluminum alloy substrate 11 and heat sinks 12 arranged in an annular array on the aluminum alloy substrate 11 along the circumferential direction, which increases the heat dissipation area and is conducive to quickly dissipating heat to the surrounding environment. The plurality of heat sinks 12 are arranged in an annular array, which is conducive to improving the uniformity of heat dissipation. The PCB board 5 is provided with a notch groove for the first bolt 7 to pass through. The notch groove is provided so that the position can be adjusted more conveniently when installing or removing the bolt. The ceramic bracket 2 is provided with a connecting hole 231 for the second bolt 8 to pass through. A threaded hole 111 is provided between each adjacent two heat sinks 12 at the corresponding position of the notch groove and the connecting hole 231. The first bolt 7 and the second bolt 8 are respectively threadedly connected to the corresponding threaded holes 111. A slot 112 is provided on one side of the threaded hole 111. The slot 112 can also be used as a stress release point to reduce structural deformation or damage caused by over-tightening of the bolt or thermal expansion and contraction of the heat sink 1. At the same time, the heat on the bolt can be quickly diffused to the surrounding environment through the slot 112.

[0034] In this embodiment, the lens includes a cylindrical support body and a lens fixed in the cylindrical support body, the lens is a convex lens, and the annular mounting platform 23 presses the cylindrical support body onto the PCB board 5 and allows the LED lamp bead 6 to be located in the cylindrical support body.

[0035] In this embodiment, the glass cover 4 is provided with an external thread, and a plurality of clamping points 32 are provided on the inner circumferential wall of the metal shell 3. The plurality of clamping points 32 are distributed on the inner circumferential wall of the metal shell 3 at intervals along the spiral line direction. The plurality of clamping points 32 can be respectively inserted into the screw grooves at different positions of the external thread, and the clamping points 32 are capsule-shaped.

[0036] In the above manner, by providing an external thread on the glass cover 4 and designing card points 32 spaced apart along the spiral direction on the inner circumferential wall of the metal shell 3, these card points 32 can be inserted into different screw grooves of the external thread, thereby achieving a stable connection between the glass cover 4 and the metal shell 3. Compared with the traditional spherical card points 32, the capsule-shaped card points 32 increase the contact area between the card points 32 and the screw grooves, which not only enhances the stability of the connection, but also effectively prevents loosening or falling off due to vibration or external force.

[0037] In this embodiment, a plurality of hollow grooves communicating with the inner cavity are arranged on the outer peripheral wall of the ceramic bracket 2. The arrangement of the hollow grooves not only reduces the overall weight of the ceramic bracket 2, but also provides a channel for air flow, thereby increasing the heat exchange capacity between the ceramic bracket 2 and the surrounding environment.

[0038] In this embodiment, the insulation spacing is 52mm-55mm, specifically 52mm, 52.5mm, 53mm, 53.5mm, 54mm, 54.5mm, and 55mm. Within this spacing range, the heat transferred to the LED lamp beads 6 can be minimized while maintaining a better lighting effect.

[0039] The present invention also discloses an assembly method of an LED oven lamp, which is used to realize the assembly of any of the above-mentioned LED oven lamps, and comprises the following steps:

[0040] S1, connecting and fixing the PCB board 5 on the heat sink 1 through the first bolt 7;

[0041] S2, place the lens on the PCB board 5, and make the LED lamp bead 6 and the lens coaxial;

[0042] S3, one end of the ceramic bracket 2 is sleeved and fixed to the metal shell 3, so that the card 34 is covered on the clamping platform 22, and the limiting block 33 is pressed against the limiting platform 21;

[0043] S4, the other end of the ceramic bracket 2 is connected and fixed to the heat sink 1 through the second bolt 8, and the ceramic bracket 2 presses the lens against the PCB board 5;

[0044] S5, screwing the glass cover 4 into the metal shell 3 in a rotating manner.

[0045] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An LED oven lamp, comprising a glass cover (4) and a metal housing (3), characterized in that: It also comprises a heat sink (1), a lens, a ceramic bracket (2) and a PCB board (5) on which an LED lamp bead (6) is mounted. The two ends of the ceramic bracket (2) are respectively connected and fixed between the heat sink (1) and the metal shell (3). The glass cover (4) is threadedly connected to an end of the metal shell (3) away from the heat sink (1). The ceramic bracket (2) has an inner cavity. The PCB board (5) is fixed on the heat sink (1) located in the inner cavity. The ceramic bracket (2) presses the lens onto the PCB board (5). The lens is suitable for converging the light beam of the LED lamp bead (6) and directing it to the glass cover (4). The metal shell (3) is provided with a mounting portion (31) that can be mounted in a groove of an oven chamber wall. There is a heat-insulating distance between the LED lamp bead (6) and the mounting portion (31). The PCB board (5) is fixedly connected to the heat sink (1) via a first bolt (7); an annular mounting platform (23) is provided on the inner side of the ceramic bracket (2); the annular mounting platform (23) is fixedly connected to the heat sink (1) via a second bolt (8); a clamping platform (22) is provided on the outer side of the ceramic bracket (2); a limiting platform (21) is provided on the ceramic bracket (2) below the clamping platform (22); and a card (34) that can be covered on the clamping platform (22) and a limiting block (33) that can be elastically pressed against the limiting platform (21) are respectively provided on the metal shell (3); The heat sink (1) comprises an aluminum alloy substrate (11) and heat sinks (12) arranged in a circular array on the aluminum alloy substrate (11) along a circumferential direction; the PCB board (5) is provided with a notch groove through which a first bolt (7) can pass; the ceramic bracket (2) is provided with a connecting hole (231) through which a second bolt (8) can pass; a threaded hole (111) is provided between each two adjacent heat sinks (12) at corresponding positions of the notch groove and the connecting hole (231); the first bolt (7) and the second bolt (8) are respectively threadedly connected to their respective corresponding threaded holes (111); and a slot (112) is provided on one side of the threaded hole (111); The glass cover (4) is provided with an external thread, and the inner peripheral wall of the metal shell (3) is provided with a plurality of clamping points (32), the plurality of clamping points (32) are distributed on the inner peripheral wall of the metal shell (3) at intervals along the spiral line direction, the plurality of clamping points (32) can be respectively clamped into screw grooves at different positions of the external thread, and the clamping points (32) are capsule-shaped; The outer peripheral wall of the ceramic support (2) is provided with a plurality of hollow grooves communicating with the inner cavity; The PCB board (5) is respectively provided with a positive electrode connection sheet and a negative electrode connection sheet which are electrically connected to the LED lamp bead (6), and the power supply voltage of the LED lamp bead (6) is 12V.

2. The LED oven light according to claim 1, characterized in that: The lens comprises a cylindrical support body and a lens fixed in the cylindrical support body. The annular mounting platform (23) presses the cylindrical support body onto the PCB board (5) and enables the LED lamp bead (6) to be located in the cylindrical support body.

3. The LED oven light according to claim 1, characterized in that: The thermal insulation distance is 52mm-55mm.

4. A method for assembling an LED oven light, for realizing the assembly of the LED oven light according to any one of claims 1 to 3, characterized in that: The steps include: S1, connecting and fixing the PCB board (5) on the heat sink (1) by means of a first bolt (7); S2, placing the lens on the PCB board (5) and making the LED lamp bead (6) and the lens coaxial; S3, one end of the ceramic bracket (2) is sleeved and fixed to the metal shell (3), so that the card (34) is covered on the card connection platform (22), and the limiting block (33) is pressed against the limiting platform (21); S4, connecting and fixing the other end of the ceramic bracket (2) to the heat sink (1) via a second bolt (8), and making the ceramic bracket (2) press the lens against the PCB board (5); S5. Screw the glass cover (4) into the metal housing (3) in a rotating manner.

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