An indicating lamp circuit board applied to a microcrystalline glass panel of an electromagnetic oven

Abstract

The utility model discloses an indicator light circuit board applied to the microcrystalline glass panel of electromagnetic oven, include: circuit board body and a plurality of LED lamp pearl, every LED lamp pearl outside all is equipped with the lamp shade of non -light -transmitting structure, the lamp shade is the tubular structure of top closed, bottom opening, and the bottom of lamp shade sets up on circuit board body and is completely wrapped corresponding LED lamp pearl, the top of lamp shade is equipped with the rectangular light -transmitting hole, and the projection position of rectangular light -transmitting hole and microcrystalline glass panel bottom face control printing one -to -one corresponding. The present application is through the physical isolation LED light of independent lamp shade, and the directional projection of cooperation top rectangular light -transmitting hole, thoroughly eliminate the problem that light scattering to adjacent control printing area, ensure single LED only lights up corresponding printing.

Description

Technical Field

[0001] This utility model relates to the field of induction cookers, and in particular to an indicator light circuit board applied to the microcrystalline glass panel of an induction cooker. Background Technology

[0002] The indicator circuit board at the bottom of the existing induction cooker's microcrystalline glass panel is usually directly above the LED beads, corresponding to the panel's control printing position. Because the LED light source itself has a large divergence angle, and the microcrystalline glass has a light diffusion effect, the light from adjacent LEDs can easily cross and illuminate non-corresponding printing areas, causing visual interference when multiple printings light up at the same time during user operation, reducing the operation's recognition and control accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an indicator light circuit board for use on the microcrystalline glass panel of an induction cooker to solve the above-mentioned problems.

[0004] According to one aspect of this utility model, an indicator circuit board for use on a microcrystalline glass panel of an induction cooker is provided, comprising: a circuit board body and a plurality of LED beads disposed on the circuit board body, each of the LED beads being covered with a non-transparent lampshade; the lampshade is a cylindrical structure closed at the top and open at the bottom, the bottom of the lampshade being disposed on the circuit board body and completely enclosing the corresponding LED bead; a rectangular light-transmitting hole is provided at the top of the lampshade, and the projection position of the rectangular light-transmitting hole corresponds one-to-one with the control print on the bottom surface of the microcrystalline glass panel.

[0005] In some embodiments, the lampshade is made of milky white PC or PMMA material, and the sidewall thickness of the lampshade is 0.5-1.2 mm.

[0006] In some embodiments, the sidewalls of the rectangular light-transmitting hole have a chamfered slope of 10°-30°, forming a trapezoidal light-guiding channel that is larger at the top and smaller at the bottom.

[0007] In some embodiments, the inner wall of the lampshade is coated with a reflective coating, and the reflective coating covers the side wall and chamfered surface of the lampshade.

[0008] In some embodiments, the bottom of the lampshade is provided with an elastic buckle, and the lampshade is fixed in a pre-set positioning groove in the circuit board body by snap-fit.

[0009] Compared with the prior art, the beneficial effects of this application are as follows:

[0010] This application uses an independent lampshade to physically isolate LED light, combined with a rectangular light-transmitting hole at the top for directional projection, completely eliminating the problem of light scattering to adjacent control and printing areas, ensuring that a single LED only illuminates the corresponding print. The rectangular light-transmitting hole and chamfered bevel design further optimize the light path, making the printing area uniformly illuminated without dark areas. The one-piece injection-molded lampshade can be quickly assembled with clips without changing the existing circuit board layout, significantly reducing modification costs. The cylindrical structure of the lampshade effectively blocks the intrusion of external stray light, enhancing the visibility of indicator lights in strong light environments. The height of the lampshade and the size of the light-transmitting hole can be flexibly adjusted according to the panel thickness and print size to adapt to different models of induction cookers. Attached Figure Description

[0011] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0012] Fig. 2 This is a schematic diagram of the structure of the lampshade of this utility model. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] refer to Figs. 1-2 This application provides an indicator light circuit board for a microcrystalline glass panel of an induction cooker, comprising: a circuit board body 1 and a plurality of LED beads 2 disposed on the circuit board body 1, wherein each LED bead 2 is covered with a non-transparent lampshade 3; the lampshade 3 is a cylindrical structure with a closed top and an open bottom, the bottom of the lampshade 3 is disposed on the circuit board body 1 and completely covers the corresponding LED bead 2; the top of the lampshade 3 has a rectangular light-transmitting hole 4, the projection position of the rectangular light-transmitting hole 4 corresponding one-to-one with the control print on the bottom surface of the microcrystalline glass panel.

[0015] In some embodiments, the lampshade 3 is made of milky white PC or PMMA material, and the sidewall thickness of the lampshade 3 is 0.5-1.2 mm.

[0016] In some embodiments, the sidewall of the rectangular light-transmitting hole 4 has a chamfered slope 5 of 10°-30°, forming a trapezoidal light-guiding channel that is larger at the top and smaller at the bottom.

[0017] In some embodiments, the inner wall of the lampshade 3 is coated with a reflective coating, and the reflective coating covers the side wall and chamfered surface 5 of the lampshade 3.

[0018] In some embodiments, the bottom of the lampshade 3 is provided with an elastic buckle 6, and the lampshade 3 is fixed in a pre-set positioning groove in the circuit board body 1 by a snap-fit ​​method.

[0019] This application physically isolates LED light through an independent lampshade 3, and uses a rectangular light-transmitting hole 4 at the top for directional projection, completely eliminating the problem of light scattering to adjacent control and printing areas, ensuring that a single LED only illuminates the corresponding print. The rectangular light-transmitting hole 4 and the chamfered bevel 5 design further optimize the light path, making the printing area uniformly illuminated without dark areas. The one-piece injection-molded lampshade 3 can be quickly assembled with snaps without changing the existing circuit board layout, greatly reducing the cost of modification. The cylindrical structure of the lampshade 3 effectively blocks the intrusion of external stray light, enhancing the visibility of the indicator light in strong light environments. The height of the lampshade 3 and the size of the light-transmitting hole can be flexibly adjusted according to the panel thickness and print size to adapt to different models of induction cookers.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An indicator light circuit board for use on the microcrystalline glass panel of an induction cooker, comprising: The circuit board body and multiple LED beads disposed on the circuit board body are characterized in that: each LED bead is covered with a non-transparent lampshade; the lampshade is a cylindrical structure with a closed top and an open bottom, the bottom of the lampshade is disposed on the circuit board body and completely covers the corresponding LED bead; the top of the lampshade has a rectangular light-transmitting hole, the projection position of the rectangular light-transmitting hole corresponds one-to-one with the control print on the bottom surface of the microcrystalline glass panel.

2. The indicator light circuit board for the microcrystalline glass panel of an induction cooker according to claim 1, characterized in that, The lampshade is made of milky white PC or PMMA material, and the sidewall thickness of the lampshade is 0.5-1.2mm.

3. The indicator light circuit board for the microcrystalline glass panel of an induction cooker according to claim 1, characterized in that, The sidewalls of the rectangular light-transmitting hole have chamfered slopes of 10°-30°, forming a trapezoidal light-guiding channel that is larger at the top and smaller at the bottom.

4. The indicator light circuit board for the microcrystalline glass panel of an induction cooker according to claim 3, characterized in that, The inner wall of the lampshade is coated with a reflective coating, and the reflective coating covers the side wall and chamfered surface of the lampshade.

5. The indicator light circuit board for the microcrystalline glass panel of an induction cooker according to claim 1, characterized in that, The bottom of the lampshade is provided with an elastic buckle, and the lampshade is fixed in the positioning groove of the circuit board body by snap-fit.

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