Thin light-emitting metal refrigerator sticker

By combining the side light-input design of the light guide plate with a thin battery, the problems of large thickness and low material utilization rate of existing refrigerator magnets are solved, and a thin luminous refrigerator magnet with high luminous uniformity, low cost and good appearance is achieved.

CN223327235UActive Publication Date: 2025-09-12SHENZHEN MANPIN CULTURAL CREATIVE TECH CO LTD
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Patent Information

Application Number
CN202422883235.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-12
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The light board of the existing luminous refrigerator magnet is relatively thick, the material utilization rate is low, the cost is high, and the light emission is uneven, which affects the appearance.

Method used

It adopts a design where light enters from the side of the light guide plate, combined with an acrylic light guide plate and a thin battery. The circuit board is arranged vertically, the lamp beads are densely arranged, and the light guide points are laser engraved to improve the uniformity of light emission. It uses magnets for adsorption and metal structural parts for fixation. A PET mirror hides the image in the non-luminous state.

Benefits of technology

The thin luminous refrigerator magnet has high luminous uniformity, low material cost, thinner thickness, beautiful appearance, and is convenient to be adsorbed by magnets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a thin light-emitting metal refrigerator sticker which comprises a metal bottom shell, a face shell, a picture unit, a light guide plate, a circuit board and a battery, the picture unit, the light guide plate and the battery are sequentially arranged between the face shell and the metal bottom shell from top to bottom, and the circuit board is vertically arranged in the metal bottom shell and located on the light incident face of the light guide plate. The side, facing the light guide plate, of the circuit board is provided with multiple lamp beads, and the side, back to the light guide plate, of the circuit board is provided with a power switch, a charging interface and an indicator lamp. According to the refrigerator sticker, the light guide plate is arranged, the side face light incidence mode is adopted, the light guide plate refracts and reflects incident light rays on the side face, then the incident light rays are emitted out of the light-emitting face on the front face, the light emitting uniformity is high, the number of lamp beads is small, and power consumption is low; the lamp panel is vertically arranged and is in a narrow strip shape, the lamp beads can be densely arranged, the area of the lamp panel is greatly reduced, and the material cost is reduced; compared with an original lamp panel, the light guide plate is thinner, the occupied height is smaller, and the whole refrigerator sticker can be made thinner and more attractive.
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Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator magnets, in particular to a thin luminous metal refrigerator magnet. Background Art

[0002] Refrigerator magnets are a kind of decoration, mainly affixed to the refrigerator door, and can also be affixed to other electrical appliances or items. There are many kinds of refrigerator magnets on the market, including luminous function, luminous night light function, and dynamic colorful function. Fridge magnets with luminous function will include batteries and light boards. The light board is a whole PCB board with a few light beads sparsely scattered on it. The more and more dispersed the light beads are, the better the uniformity of the light emission. However, such a light board requires more board materials, and there are very few circuits arranged on it, with extremely low utilization rate and high cost. Lamp beads need to be set on the front of the light board, and various electronic components need to be arranged on the back. The thickness is relatively large, and the refrigerator magnets produced are thicker, not beautiful enough, and need to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a thin luminous metal refrigerator magnet, which is thinner and emits light more evenly than the existing luminous refrigerator magnet.

[0004] The utility model is implemented as follows: a thin luminous metal refrigerator magnet, comprising a metal bottom shell, a surface shell, a screen unit, a light guide plate, a circuit board and a battery, wherein the screen unit, the light guide plate and the battery are arranged in sequence from top to bottom between the surface shell and the metal bottom shell, the circuit board is electrically connected to the battery, the side of the light guide plate is provided with a light incident surface, and the front is a light emitting surface, the circuit board is vertically arranged in the metal bottom shell and is located at the light incident surface of the light guide plate, the circuit board is provided with a plurality of lamp beads on the side facing the light guide plate, and a power switch, a charging interface and an indicator light on the side facing away from the light guide plate, and an opening is provided on the side of the metal bottom shell for exposing the power switch, the charging interface and the indicator light.

[0005] Wherein, the light guide plate is an acrylic light guide plate, and a plurality of light guide points are engraved on the bottom surface by laser.

[0006] Wherein, a reflective sheet is further provided at the bottom of the light guide plate.

[0007] Among them, the picture unit includes multiple hollow picture panels, multiple pads and soft light paper. The hollow picture panels are stacked up and down, and the pads are set between adjacent hollow picture panels to create a distance between adjacent hollow picture panels to increase the three-dimensional effect. The soft light paper is located at the bottom layer of the picture unit.

[0008] The refrigerator magnet further comprises a metal structural member and a metal decorative sheet, both of which are arranged on a metal bottom shell. A card slot is provided on the metal structural member, and the circuit board is arranged in the card slot.

[0009] Wherein, the face shell is a PET face mirror.

[0010] A magnet is also provided in the metal bottom shell for adsorbing the refrigerator magnet on the refrigerator, and the metal bottom shell is made of magnetic conductive material.

[0011] Wherein, the battery is a thin battery with a thickness of less than 3 mm.

[0012] The beneficial effects of the present invention are as follows: the refrigerator magnet of the present application is provided with a light guide plate, and adopts a side light input method. The light guide plate refracts and reflects the incident light from the side, and then emits it from the front light output surface. The light uniformity is high, the amount of lamp beads used is small, and the power consumption is low; the lamp board is arranged vertically and in a narrow strip shape, the lamp beads can be densely arranged, the area of ​​the lamp board is greatly reduced, and the material cost is reduced; the light guide plate is thinner than the original light board and occupies less height, so the refrigerator magnet as a whole can be made slimmer and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of an embodiment of the refrigerator magnet of the present invention;

[0014] Figure 2 This is a schematic diagram of the assembly action of the picture unit in the refrigerator magnet embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the assembly of the metal bottom shell, metal structural parts, metal decorative sheet, circuit board and battery in the refrigerator magnet embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the assembly of the surface shell, the screen unit, the light guide plate and the lower half structure in the refrigerator magnet embodiment of the present invention;

[0017] Figure 5 This is a three-dimensional diagram of the light guide plate in the refrigerator magnet embodiment of the present invention;

[0018] Figure 6 It is a top view of the circuit board in the refrigerator magnet embodiment of the present invention.

[0019] Among them, 1. Metal bottom shell; 11. Opening; 2. Surface shell; 3. Screen unit; 31. Hollow screen panel; 32. Pad; 33. Soft light paper; 4. Light guide plate; 41. Light incident surface; 42. Light exit surface; 43. Light guide point; 5. Circuit board; 51. Lamp beads; 52. Power switch; 53. Charging port; 54. Indicator light; 6. Battery; 7. Metal structural parts; 71. Card slot; 8. Metal decorative sheet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] As an embodiment of the thin luminous metal refrigerator magnet of the present invention, Figures 1 to 6 As shown, it includes a metal bottom shell 1, a face shell 2, a screen unit 3, a light guide plate 4, a circuit board 5 and a battery 6. The screen unit 3, the light guide plate 4 and the battery 6 are arranged in sequence from top to bottom between the face shell 2 and the metal bottom shell 1. The circuit board 5 is electrically connected to the battery 6. The side of the light guide plate 4 is provided with a light incident surface 41, and the front is a light emitting surface 42. The circuit board 5 is vertically arranged in the metal bottom shell 1 and is located at the light incident surface 41 of the light guide plate 4. The circuit board 5 is provided with a plurality of lamp beads 51 on the side facing the light guide plate 4, and a power switch 52, a charging interface 53 and an indicator light 54 on the side facing away from the light guide plate 4. An opening 11 is provided on the side of the metal bottom shell 1 for exposing the power switch 52, the charging interface 53 and the indicator light 54.

[0022] The refrigerator magnet of the present application is provided with a light guide plate 4, and adopts a side light input method. The light guide plate 4 refracts and reflects the incident light from the side, and then emits it from the front light output surface 42. The light uniformity is high, the number of lamp beads 51 used is small, and the power consumption is low; the lamp board is arranged vertically and is in a narrow strip shape, the lamp beads 51 can be densely arranged, the area of ​​the lamp board is greatly reduced, and the material cost is reduced; the light guide plate 4 is thinner than the original light board and occupies less height, so the refrigerator magnet as a whole can be made slimmer and more beautiful.

[0023] Reference Figure 5 The light guide plate 4 is an acrylic light guide plate 4, and a plurality of light guide points 43 are laser-engraved on the bottom surface. The light guide points 43 can reflect and diffuse the light in the light guide plate 4 to various angles, and then emit it from the front of the light guide plate 4 after breaking the reflection condition. The size and density of the light guide points 43 can be designed according to actual needs to ensure that the light guide plate 4 has a uniform lighting effect that meets the requirements.

[0024] In this embodiment, a reflective sheet (not shown) may be further provided at the bottom of the light guide plate 4 to improve the efficiency of light reflection out of the light guide plate 4 and reduce light loss caused by repeated reflections within the light guide plate 4 .

[0025] Reference Figure 2The picture unit 3 includes multiple hollow picture panels 31, multiple backing plates 32, and soft light paper 33. The hollow picture panels 31 are stacked one above the other, with the backing plates 32 positioned between adjacent hollow picture panels 31 to create spacing between them and enhance the three-dimensional effect. The soft light paper 33 is located at the bottom layer of the picture unit 3. In this embodiment, there are four hollow picture panels 31, three backing plates 32, and one soft light paper 33. These numbers can be adjusted adaptively based on the complexity of the picture, and the hollow picture can also adopt various other designs.

[0026] Reference Figure 3 The refrigerator magnet also includes a metal structure 7 and a metal decorative sheet 8, both of which are mounted on the metal bottom case 1. The metal structure 7 is provided with a slot 71, into which the circuit board 5 is mounted. The metal structure 7 primarily connects peripheral components and secures the circuit board 5. Both the metal bottom case 1 and the metal decorative sheet 8 can be designed with patterns to create a unique style and attract consumers.

[0027] Reference Figure 1 and Figure 4 The surface shell 2 is a PET mirror. When the lamp bead 51 is not emitting light, the picture is not visible, which has a hiding effect. It can also be used as a small mirror at ordinary times. When the lamp bead 51 is emitting light, the picture will be presented, which is quite novel.

[0028] In this embodiment, a magnet (not shown) is further provided in the metal bottom shell 1 for adsorbing the refrigerator magnet to the refrigerator. The metal bottom shell 1 is made of a magnetic material. The magnet can make the metal bottom shell 1 magnetic, so that it can be adsorbed to the refrigerator.

[0029] In this embodiment, the battery 6 is preferably a thin battery with a thickness of less than 3 mm, which can make the refrigerator magnet thinner.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thin luminous metal refrigerator magnet, characterized in that: It includes a metal bottom shell, a face shell, a screen unit, a light guide plate, a circuit board and a battery. The screen unit, light guide plate and battery are arranged in sequence between the face shell and the metal bottom shell from top to bottom. The circuit board is electrically connected to the battery. The side of the light guide plate is provided with a light incident surface, and the front is a light emitting surface. The circuit board is vertically arranged in the metal bottom shell and is located at the light incident surface of the light guide plate. The circuit board is provided with a plurality of lamp beads on the side facing the light guide plate, and a power switch, a charging port and an indicator light on the side facing away from the light guide plate. An opening is provided on the side of the metal bottom shell for exposing the power switch, charging port and indicator light.

2. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: The light guide plate is an acrylic light guide plate, and a plurality of light guide points are engraved on the bottom surface by laser.

3. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: A reflective sheet is also provided at the bottom of the light guide plate.

4. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: The picture unit includes multiple hollow picture panels, multiple pads and soft light paper. The hollow picture panels are stacked up and down, and the pads are set between adjacent hollow picture panels to create a gap between adjacent hollow picture panels to increase the three-dimensional effect. The soft light paper is located at the bottom layer of the picture unit.

5. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: The refrigerator magnet further comprises a metal structural member and a metal decorative sheet, both of which are arranged on a metal bottom shell. A card slot is provided on the metal structural member, and the circuit board is carded in the card slot.

6. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: The face shell is a PET face mirror.

7. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: A magnet is also provided in the metal bottom shell for adsorbing the refrigerator magnet on the refrigerator. The metal bottom shell is made of magnetic conductive material.

8. The thin luminous metal refrigerator magnet according to claim 1, characterized in that: The battery is a thin battery with a thickness of less than 3 mm.