EP3779270A1

EP3779270A1 - Electronic musical candle

Info

Publication number: EP3779270A1
Application number: EP19202379.4A
Authority: EP
Inventors: Lei Guo
Original assignee: Chang Zhou Man Mei Industrial Co Ltd
Current assignee: Chang Zhou Man Mei Industrial Co Ltd
Priority date: 2019-08-14
Filing date: 2019-10-10
Publication date: 2021-02-17
Anticipated expiration: 2039-10-10
Also published as: EP3779270B1; DK3779270T3; CN211738935U; DE202019105478U1

Abstract

The present invention relates Electronic Musical Candle. The pressure sensor is electrically connected with the analog-digital converter. The analog-digital converter is connected to a port P1.0 of the control circuit board. The Bluetooth receiver, the protocol decoding chip and the data decoding chip are electrically connected in sequence. The data decoding chip is connected to ports P2.0 to P2.7 of the control circuit board. A port P3.0 of the control circuit board is electrically connected with the light emitting diode, and a port P4.0 is electrically connected with the loudspeaker. The front end of the pressure sensor is also provided with a flow guide tube which passes through the top of the candle shell and extends outward. The Bluetooth receiver may receive a Bluetooth signal sent by a smart phone. The bottom end of the candle shell is also provided with a memory card slot where a memory card can be plugged. The memory card slot is electrically connected with the control circuit board. The bottom of the candle shell is also provided with three buttons for switching or pausing and playing a song, a switching pick for switching a Bluetooth function and a memory card playback function, and a charging port connected to a power supply. The present invention may simulate swing of a flame, which makes it more real.

Description

Technical Field

The present invention relates to the field of electronic candle lights, and more particularly relates to an electronic musical candle.

Background Art

At present, electronic candle lights gradually replace traditional candles in various occasions. A traditional candle is a consumable and has an open flame, which is extremely dangerous. By replacing the flame of the traditional candle with an LED (Light Emitting Diode) lamp of an electronic candle light, the shortcoming that the traditional candle is extremely dangerous can be overcome, and resources are also saved.
A traditional electronic candle is only turned on or off by a reliable switch power supply, which lacks sense of reality and has poor user experience. The utility model (application number: 200910039877.0 ) discloses an electronic blowing control candle. Although the electronic blowing control candle implements that an electronic candle simulates a blowing control function of a real candle by using an air control sensor or a gas sensor, it has a very simple function, cannot really simulate the real candle and cannot bring good use experience to users.

Summary of the Utility Model

In order to solve the above technical problems, the present invention provides a blowing control electronic candle with a music playing function. The present invention may also simulate swing of a flame, which makes it more real.
In order to solve the above technical problems, the technical solution of the present invention is as follows: an electronic musical candle includes a candle shell having an opening in one end, a simulated flame body, a loudspeaker and a light emitting diode. The loudspeaker and the light emitting diode are fixed at the top end of the interior of the candle shell. An integrated chip accommodating slot and a control circuit board accommodating slot are formed in the inner wall of the candle shell. An integrated chip is accommodated in the integrated chip accommodating slot. A control circuit board is accommodated in the control circuit board accommodating slot. The integrated chip integrates a pressure sensor, an analog-digital converter, a Bluetooth receiver, a protocol decoding chip and a data decoding chip. The pressure sensor is electrically connected with the analog-digital converter. The analog-digital converter is connected to a port P1.0 of the control circuit board. The Bluetooth receiver, the protocol decoding chip and the data decoding chip are electrically connected in sequence. The data decoding chip is connected to ports P2.0 to P2.7 of the control circuit board. A port P3.0 of the control circuit board is electrically connected with the light emitting diode, and a port P4.0 is electrically connected with the loudspeaker. The front end of the pressure sensor is also provided with a flow guide tube which passes through the top of the candle shell and extends outward. The Bluetooth receiver may receive a Bluetooth signal sent by a smart phone. The bottom end of the candle shell is also provided with a memory card slot where a memory card can be plugged. The memory card slot is electrically connected with the control circuit board. The bottom of the candle shell is also provided with three buttons for switching or pausing and playing a song, a switching pick for switching a Bluetooth function and a memory card playback function, and a charging port connected to a power supply.
Further, a limiting channel is also inwards arranged at an opening of the candle shell along an axial direction. A supporting rod is arranged in the limiting channel. The top of the supporting rod is fixedly connected with the simulated flame body. The bottom of the supporting rod is a spherical rotating ball. The middle part of the supporting rod is fixedly connected with a ring magnet. A circle of auxiliary magnetic pole is arranged at a part, having an equal height to the ring magnet, in the candle shell. A supporting pillar is arranged at the bottom end of the interior of the candle shell. A bowl-shaped supporting slot matched with the spherical rotating ball is formed in the top end of the supporting pillar.
Further, the geometric center of the auxiliary magnetic pole is coaxial with the ring magnet and the supporting rod.
Therefore, compared with traditional technical means, the electronic musical candle of the present invention has the following beneficial effects that:

1. the present invention is simple in structure, and the blowing control function is added to simulate a situation that a real candle is blown out in real life.
2. the present invention can play music in the memory card through the memory card, and also has a Bluetooth control music playing function, so that the shortcoming that an original electronic candle can only play built-in music is overcome; the present invention can control a single or a plurality of musical candles through the Bluetooth of a mobile phone, which effectively enhances the use experience of a user;
3. the present invention also designs a structure for simulating the flame swinging effect of the real candle, so that the shortcoming that original flame only swings towards one direction is overcome; and the flame swinging effect simulated by the present invention can realize swinging towards all directions, so that the present invention can simulate the real candle more truly to enhance the feeling of the user in use.

Brief Description of the Drawings

The aforementioned and other objectives, features and advantages of the present invention will become obvious below by detailed descriptions in combination with accompanying drawings.

Fig. 1 is a structural schematic diagram of the present invention;
Fig. 2 is a side view of the present invention;
Fig. 3 is a top view of a cross section A-A of the present invention;
Fig. 4 is a bottom view of the present invention;
Fig. 5 is a schematic diagram of connection between an integrated chip and a control circuit board of the present invention; and
Fig. 6 is a structural schematic diagram illustrating that a smart phone controls the present invention.

In the drawings: 1: candle shell; 2: simulated flame body; 3: loudspeaker; 4: light emitting diode; 5: accommodating slot; 6: control circuit board; 7: integrated chip; 71: pressure sensor; 72: analog-digital sensor; 73: Bluetooth receiver; 74: protocol decoding chip; 75: data decoding chip; 76: flow guide tube; 77: "Pause/Play" button; 78: "Previous Song" button; 79: "Next Song" button; 8: limiting channel; 9: supporting rod; 10: spherical rotating ball; 11: ring magnet; 12: auxiliary magnetic pole; 13: supporting pillar; 14: supporting slot; 15: smart phone; 16: phone application; 17: memory card slot; 18: switching pick; and 19: charging port.

Detailed Description of the Utility model

The preferred implementations of the present invention will be described below with reference to the accompanying drawings. The following descriptions with reference to the drawings are provided to assist understanding the implementations of the present invention defined by the claims, including various specific details to help understanding, but the various specific details can only be considered as being exemplary. Therefore, it will be appreciated by those skilled in the art that various changes and modifications may be made to the implementations described herein without departing from the scope and spirit of the present invention. Furthermore, detailed descriptions of familiar functions and constructions in the art will be omitted for clarity and conciseness of the present description.

Embodiment 1:

Referring to Fig. 1 to Fig. 5, an electronic musical candle includes a candle shell 1 having an opening in one end, a simulated flame body 2, a loudspeaker 3 and a light emitting diode 4. The loudspeaker 3 and the light emitting diode 4 are fixed at the top end of the interior of the candle shell 1. A plurality of small holes are formed in corresponding parts of the loudspeaker 3 and the light emitting diode 4. Accommodating slots 5 for accommodating an integrated chip 7 and a control circuit board 6 are formed in the inner wall of the candle shell 1. The integrated chip 7 integrates a pressure sensor 71, an analog-digital converter 72, a Bluetooth receiver 73, a protocol decoding chip 74 and a data decoding chip 75. The pressure sensor 71 is electrically connected with the analog-digital converter 72. The analog-digital converter 72 is connected to a port P1.0 of the control circuit board 6. The Bluetooth receiver 73, the protocol decoding chip 74 and the data decoding chip 75 are electrically connected in sequence. The data decoding chip 75 is connected to ports P2.0 to P2.7 of the control circuit board. A port P3.0 of the control circuit board is electrically connected with the light emitting diode 4, and a port P4.0 is electrically connected with the loudspeaker. The front end of the pressure sensor 75 is also provided with a flow guide tube 76 which passes through the top of the candle shell 1 and extends outward. The bottom of the candle shell is also provided with a switching pick 18 for switching a Bluetooth function and a memory card playing function, and a charging port 19 connected to a power supply.
The Bluetooth receiver 73 may receive a Bluetooth signal sent by a smart phone 15. A phone application 16 capable of controlling the electronic musical candle and numbering a plurality of electronic musical candles is installed in the smart phone 15.
In the above electronic musical candle, referring to Fig. 1, Fig. 3 and Fig. 4, when a person blows against an orifice of the flow guide tube 76 with the mouth, the pressure sensor 71 senses a pressure caused by flowing of air, and the analog-digital converter 72 converts an analog quantity signal into a digital quantity signal and transmits the digital quantity signal to the control circuit board 6 for logic judgment. When a pressure value is greater than a preset value, the control circuit board 6 controls an illuminant to be turned on and turned off. If the illuminant shines, the illuminant is controlled to be turned off; and if the illuminant does not shine, the illuminant is controlled to be turned on.
The switching pick 18 is pushed to one Bluetooth playing side, and is powered on through the charging port 19. When the phone application 16 emits a signal through a Bluetooth emission end of the smart phone 15, the Bluetooth receiver 73 starts to receive the signal; and then, the protocol decoding chip 74 decodes a front-end protocol in a smart phone signal sent by the smart phone 15, and mutual matching is realized if the decoding is successful. Later, the data decoding chip 75 starts to decode data transmitted by the smart phone signal, and the loudspeaker 3 is controlled to start to play music after the data is converted via the control circuit board 6.
Meanwhile, the phone application 16 may number all electronic musical candles connected thereto. In this way, identification and control on every electronic musical candle can be realized, so as to achieve a "one-to-many" control effect.
Referring to Fig. 1 and Fig. 2, a limiting channel 8 is also inwards arranged at an opening of the candle shell along an axial direction. A supporting rod 9 is arranged in the limiting channel 8. The top of the supporting rod 9 is fixedly connected with the simulated flame body 2. The bottom of the supporting rod 9 is a spherical rotating ball 10. The middle part of the supporting rod 9 is fixedly connected with a ring magnet 11. A circle of auxiliary magnetic pole 12 is arranged at a part, having an equal height to the ring magnet 11, in the candle shell 1. A supporting pillar 13 is arranged at the bottom end of the interior of the candle shell 1. A bowl-shaped supporting slot 14 matched with the spherical rotating ball 10 is arranged at the top end of the supporting pillar 9. The geometric center of the auxiliary magnetic pole 12 is coaxial with the ring magnet 11 and the supporting rod 9.
In the above electronic musical candle, referring to Fig. 2, the ring magnet includes an N pole outside and an S pole inside, and the auxiliary magnetic pole 12 is also formed by combining part of a plurality of ring magnets, so that the opposite surfaces of the ring magnet and the auxiliary magnetic pole are of the same polarity, and are both N poles. The principle of "repelling of the same polarity" shows that the ring magnet 11 and the auxiliary magnetic pole 12 repel each other. The part of ring magnets adopted by the auxiliary magnetic pole 12 are uniformly distributed, and the geometric center of the auxiliary magnetic pole is coaxial with the ring magnet 11, so that when the positions of the supporting rod 9 and the ring magnet 11 are changed, an effect that the simulated flame body 2 swings may be finally generated under the actions of a magnetic field force and inertia.
In the above electronic musical candle, the limiting channel is to prevent a too large falling angle of the supporting rod 9. When the falling angle of the supporting rod 9 is more than 45 degrees, the above magnetic field force is unable to support the ring magnet 11 to return to the original position.
In the above electronic musical candle, the spherical rotating ball 10 and the bowl-shaped supporting slot 13 matched with the rotating ball limit a rotating center point of the supporting rod 9 to prevent the supporting rod 9 from running out of the position of a center point of origin.
In the above electronic musical candle, the illuminant illuminates the simulated flame body 2 through the plurality of small holes in the top of the candle to make the simulated flame body shine and be more vivid. The loudspeaker 3 and a music playing chip may allow the electronic candle to play music, thereby making it more interesting.

Embodiment 2:

Referring to Fig. 2, on the basis of Embodiment 1, the switching pick 18 is switched to one side of playing music with a memory card, and is powered on. The bottom end of the candle shell is also provided with a memory card slot 17 where the memory card can be plugged. The memory card slot 17 is electrically connected with the control circuit board 7. The bottom of the candle shell 1 is also provided with three buttons for switching or pausing and playing a song. The three buttons and the memory card slot 17 may be mounted on the bottom surface of the candle shell 1, which is favorable for hiding the buttons, so that the electronic musical candle looks more attractive. A user may play songs pre-stored in the memory card, and switch the songs with a "Previous Song" button 78 and a "Next Song" button 79, and pause or play the songs with a "Pause/Play" button 77, so that the present invention may still play beautiful music to cater to the current atmosphere without the smart phone 15.

Embodiment 3:

Referring to Figs. 6 to 7, on the basis of Embodiment 2, the bottom end of the candle shell is also provided with a memory card slot 17 where a memory card can be plugged. The memory card slot 17 is electrically connected with the control circuit board 7. The bottom of the candle shell 1 is also provided with three buttons for switching or pausing and playing a song. The three buttons and the memory card slot 17 may be mounted at the bottom of a side edge of the candle shell 1, which facilitates user operations.

Claims

An electronic musical candle, comprising a candle shell having an opening in one end, a simulated flame body, a loudspeaker and a light emitting diode, wherein the loudspeaker and the light emitting diode are fixed at the top end of the interior of the candle shell; accommodating slots for accommodating an integrated chip and a singlechip microcomputer circuit control board are formed in the inner wall of the candle shell; the integrated chip integrates a pressure sensor, an analog-digital converter, a Bluetooth receiver, a protocol decoding chip and a data decoding chip; the pressure sensor is electrically connected with the analog-digital converter; the analog-digital converter is connected to a port P1.0 of the control circuit board; the Bluetooth receiver, the protocol decoding chip and the data decoding chip are electrically connected in sequence; the data decoding chip is connected to ports P2.0 to P2.7 of a control circuit board; a port P3.0 of the control circuit board is electrically connected with the light emitting diode, and a port P4.0 is electrically connected with the loudspeaker; the front end of the pressure sensor is also provided with a flow guide tube which passes through the top of the candle shell and extends outward; the Bluetooth receiver may receive a Bluetooth signal sent by a smart phone; the bottom end of the candle shell is also provided with a memory card slot where a memory card may be plugged; the memory card slot is electrically connected with the control circuit board; and the bottom of the candle shell is also provided with three buttons for switching or pausing and playing a song, a switching pick for switching a Bluetooth function and a memory card playback function, and a charging port connected to a power supply.
The electronic musical candle according to claim 1, wherein a limiting channel is also inwards arranged at an opening of the candle shell along an axial direction; a supporting rod is arranged in the limiting channel; the top of the supporting rod is fixedly connected with the simulated flame body; the bottom of the supporting rod is a spherical rotating ball; the middle part of the supporting rod is fixedly connected with a ring magnet; a circle of auxiliary magnetic pole is arranged at a part, having an equal height to the ring magnet, in the candle shell; a supporting pillar is arranged at the bottom end of the interior of the candle shell; and a bowl-shaped supporting slot matched with the spherical rotating ball is formed in the top end of the supporting pillar.
The electronic musical candle according to claim 2, wherein the geometric center of the auxiliary magnetic pole is coaxial with the ring magnet and the supporting rod.