Greeting card

Abstract

A greeting card comprises a folding main body and an acousto-optic playing circuit, the folding main body comprises a front cover and a back cover which are movably connected in a folding mode, and a scenery modeling paperboard and a candle modeling paperboard are arranged between the front cover and the back cover; the acousto-optic playing circuit comprises a central processing unit, a power supply, a loudspeaker, a magnetic induction element, an airflow sensor, a candle LED lamp and a scenery LED lamp. The scenery LED lamp irradiates the scenery modeling paperboard, the visual effect of scenery is improved, the candle LED lamp serves as a flame of candle modeling, the vividness of a candle is improved, and the overall atmosphere is rendered and improved; after air is blown towards the air flow sensor on the candle-shaped paperboard, the air flow sensor sends a signal to the central processing unit, so that the candle LED lamp and the setting LED lamp are extinguished, and interaction between people and the greeting card is realized along with playing of the sound, the scene of birthday celebration in real life is simulated more vividly, and the interestingness and entertainment are extremely high.

Description

Technical Field

[0001] The utility model relates to a greeting card, in particular to an electronic greeting card. Background Art

[0002] Greeting cards are a tool for enhancing relationships. Giving greeting cards to each other among friends and relatives or during festivals has become popular. Electronic greeting cards can be accompanied by music and lights when the card is opened. For example, the Chinese patent announcement number CN205130689U is a music greeting card controlled by a single-chip microcomputer, which includes a greeting card and a control circuit installed in the greeting card. The control circuit includes a single-chip microcomputer unit, a color light display unit, a music playback unit and an induction trigger unit. The color light display unit, the music playback unit and the induction trigger unit are respectively connected to the single-chip microcomputer unit. The greeting card is provided with a window, and the color lights in the color light display unit are exposed in the window of the greeting card. The current electronic greeting cards do not have much novelty. Basically, music is played after the greeting card is opened, accompanied by LED lights that flash with the music. It is not vivid enough and cannot achieve the interactive effect between people and greeting cards. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a greeting card, which can realize the interaction between people and the greeting card and improve the interest of the greeting card.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a greeting card, including a folding body and a sound and light playing circuit, the folding body includes a front cover and a back cover which are foldably connected, and a scenery modeling cardboard and a candle modeling cardboard are arranged between the front cover and the back cover; the sound and light playing circuit includes a central processing unit, a power supply, a loudspeaker, a magnetic induction element, an airflow sensor, a candle LED lamp and a scenery LED lamp, the power supply supplies power to the central processing unit, the magnetic induction element controls the central processing unit switch, the airflow sensor outputs a signal to the central processing unit, and the central processing unit outputs a signal to control the loudspeaker, the scenery LED lamp and the candle LED lamp; the candle LED lamp is arranged on the flame of the candle modeling cardboard, the airflow sensor is arranged on the body of the candle modeling cardboard, and the scenery LED lamp can irradiate the scenery modeling cardboard. The principle of the utility model is as follows: after the front cover and the back cover are opened, the scenery modeling cardboard and the candle modeling cardboard are unfolded and presented in front of the eyes, achieving an impact of visual effects; at the same time, the magnetic induction element sends a trigger signal to the central processing unit, and the central processing unit controls the scenery LED light and the candle LED light to light up, the scenery LED light illuminates the scenery modeling cardboard to improve the visual effect of the scenery, and the candle LED light serves as the flame of the candle shape to improve the vividness of the candle and render and enhance the overall atmosphere; after blowing air at the airflow sensor on the candle modeling cardboard, the airflow sensor sends a signal to the central processing unit to turn off the candle LED light and the scenery LED light, accompanied by the playing of cheers, thereby realizing the interaction between people and greeting cards, more realistically simulating the birthday celebration scene in real life, and having extremely strong interest and entertainment.

[0005] As an improvement, the inner side of the cover is provided with a fireworks shape, and the sound and light playing circuit includes a fireworks LED light arranged at the fireworks shape.

[0006] As an improvement, the scenery modeling cardboard forms a three-dimensional space after being unfolded, and the scenery LED lights are arranged in the three-dimensional space.

[0007] As an improvement, the sound and light playing circuit also includes a recording device connected to the central processing unit.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The scenery LED lights illuminate the scenery modeling cardboard to improve the visual effect of the scenery, and the candle LED lights serve as the flame of the candle shape, increasing the vividness of the candle and rendering and enhancing the overall atmosphere. After blowing air at the airflow sensor on the candle shape cardboard, the airflow sensor sends a signal to the central processor to turn off the candle LED lights and the scenery LED lights, accompanied by the playing of cheers, to achieve interaction between people and greeting cards, more realistically simulating the birthday celebration scene in real life, with great interest and entertainment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a diagram of the greeting card after it is opened.

[0011] Figure 2 This is the block diagram of the sound and light playback circuit. Implementation

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] like Figure 1 As shown, a greeting card includes a folding body and a sound and light playing circuit. The folding body includes a front cover 1 and a back cover 2 that are foldably connected; a scenery-shaped cardboard 3 and a candle-shaped cardboard 4 are arranged between the front cover 1 and the back cover 2. After the front cover 1 and the back cover 2 are opened, the scenery-shaped cardboard 3 and the candle-shaped cardboard 4 can show a three-dimensional sense, especially the scenery-shaped cardboard 3. After the scenery-shaped cardboard 3 is unfolded, a three-dimensional space is formed; a firework shape 5 is arranged on the inner side of the cover 1. The firework shape 5 includes a drawing and a hollow hole. The combination of the firework shape 5, the scenery-shaped cardboard 3 and the candle-shaped cardboard 4 has a sense of layering and a celebratory atmosphere.

[0014] like Figure 1 , 2As shown, the sound and light playing circuit includes a central processing unit, a power supply, a speaker, a magnetic induction element, an airflow sensor 8, a firework LED lamp 9, a candle LED lamp 7 and a scenery LED lamp 6. The power supply supplies power to the central processing unit, the magnetic induction element controls the central processing unit switch, the airflow sensor 8 outputs a signal to the central processing unit, and the central processing unit outputs a signal to control the speaker, the firework LED lamp 9, the scenery LED lamp 6 and the candle LED lamp 7. The magnetic induction element is a Hall element, the central processing unit is a single-chip microcomputer, and the power supply is a button battery. The candle LED lamp 7 is arranged on the flame of the candle-shaped cardboard 4, the airflow sensor 8 is arranged on the body of the candle-shaped cardboard 4, and the candle LED lamp 7 and the airflow sensor 8 are both hidden designs. After the candle LED lamp 7 is turned on, it emits yellow light to simulate a real candle flame. The airflow sensor 8 is arranged below the flame. The candle-shaped cardboard 4 is provided with a through hole to expose the airflow sensor 8. After blowing air at the candle, the airflow sensor 8 can be triggered to turn off the candle LED lamp 7, thereby simulating the scene of blowing candles. The scenery LED lamp 6 is arranged on the front cover 1 or the back cover 2, and is specifically arranged according to the shape of the scenery modeling cardboard 3. Generally speaking, the scenery LED lamp 6 is arranged in the three-dimensional space formed by the unfolding of the scenery modeling cardboard 3, and the light of the scenery LED lamp 6 can be irradiated on the scenery modeling cardboard 3; the scenery LED lamp 6 is a colored lamp and has a flashing function, which has a better rendering effect on the scenery modeling cardboard 3. The firework LED lamp 9 is arranged in the cover 1, and the light of the firework LED lamp 9 can be emitted through the hollow hole of the firework modeling 5. The firework LED lamp 9 is a colored lamp and has a flashing function, which makes the firework modeling 5 more vivid. The sound and light playback circuit also includes a recording device connected to the central processor, and the recording device can be a microphone or a data transmission interface connected to the central processor. The congratulatory words can be pre-recorded into the central processor, and the recording can be played according to the scene program setting.

[0015] Principle of the utility model: after the front cover 1 and the back cover 2 are opened, the scenery modeling cardboard 3 and the candle modeling cardboard 4 are unfolded and presented in front of the eyes, realizing the impact of visual effects; at the same time, the magnetic induction element sends a trigger signal to the central processing unit, and the central processing unit controls the scenery LED light 6 and the candle LED light 7 to light up, the scenery LED light 6 illuminates the scenery modeling cardboard 3, thereby improving the visual effect of the scenery, and the candle LED light 7 serves as the flame of the candle shape, thereby improving the vividness of the candle and rendering and enhancing the overall atmosphere; after blowing air at the airflow sensor 8 on the candle modeling cardboard 4, the airflow sensor 8 sends a signal to the central processing unit to realize that the candle LED light 7 and the scenery LED light 6 are extinguished, accompanied by the playing of cheers, thereby realizing the interaction between people and greeting cards, more realistically simulating the scene of birthday celebration in real life, and having extremely strong interest and entertainment.

Claims

1. A greeting card, comprising a folding body and a sound and light playing circuit, wherein the folding body comprises a front cover and a back cover which are foldably connected, and a scenery-shaped cardboard and a candle-shaped cardboard are arranged between the front cover and the back cover; characterized in that: The sound and light playing circuit comprises a central processing unit, a power supply, a loudspeaker, a magnetic induction element, an airflow sensor, a candle LED lamp and a scenery LED lamp. The power supply supplies power to the central processing unit, the magnetic induction element controls the switch of the central processing unit, the airflow sensor outputs a signal to the central processing unit, and the central processing unit outputs a signal to control the loudspeaker, the scenery LED lamp and the candle LED lamp; the candle LED lamp is arranged on the flame of the candle-shaped cardboard, the airflow sensor is arranged on the body of the candle-shaped cardboard, and the scenery LED lamp can irradiate the scenery-shaped cardboard; the inner side surface of the cover is provided with a fireworks shape, and the sound and light playing circuit comprises a fireworks LED lamp arranged at the fireworks shape; the scenery-shaped cardboard forms a three-dimensional space after being unfolded, and the scenery LED lamp is arranged in the three-dimensional space; the sound and light playing circuit also comprises a recording device connected to the central processing unit.

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