WO2018205292A1

WO2018205292A1 - Simulated candle lamp

Info

Publication number: WO2018205292A1
Application number: PCT/CN2017/084715
Authority: WO
Inventors: 陈善长; 李超; 张琴; 胡伟
Original assignee: 陈善长; 李超; 张琴; 胡伟
Priority date: 2017-05-11
Filing date: 2017-05-17
Publication date: 2018-11-15
Also published as: CN106989355A

Abstract

A simulated candle lamp, comprising a housing (1), an LED light source (2), a candlewick sheet (3), and a vibration device (4). A candlewick through hole (10) is formed at the top of the housing (1); the candlewick sheet (3) is a flexible soft sheet and has an upper end portion (31) in the shape of a candle flame; the lower end portion (32) of the candlewick sheet penetrates through the candlewick through hole (10) and is fixedly connected with the vibration device (4); the vibration device (4) drives the upper end portion of the candlewick sheet (3) to vibrate forward and backward; and light rays of the LED light source (2) are projected to the front face of the upper end portion of the candlewick sheet (3). When the lower end portion of the candlewick sheet (3) vibrates forward and backward, the upper end portion thereof may vibrate with a larger amplitude due to its flexibility, and under the illumination of the LED light rays, soft halo effect may appear on the edge. In addition, the highlight area of the projected LED light rays is always located at the center of the flame and matched with the halo on the edge; the effect is similar to the effect of flame flutter of a burning candle in a breezeless environment; the simulation degree is extremely high. The driving vibration amplitude of the lower end portion of the candlewick sheet (3) can be small, and therefore the simulated candle may occupies a small space, so that the present invention can be applied to simulation of a small-sized candle; and the small-amplitude vibration driving method has low energy consumption.

Description

A simulated candle light

Technical field

The invention relates to the field of simulated candle light technology, in particular to a candle lamp which can highly mimic the burning dynamics of a candle flame.

Background technique

With the development of science and technology and the advancement of society, the open flame candle can be replaced by a simulated candle light. On the one hand, it can simulate the effect of candlelight, on the other hand, it can be safely used to avoid the risk of fire.

The candle light is usually divided into two parts: the candlestick and the wick. The simulation design of the candlestick part is simple and mature, and the design of the wick part is still in the state of low simulation. The initial simulation of the wick structure is a built-in illuminating bulb in a transparent wick-shaped casing, which is powered by light to simulate the wick flame. This static wick has a poor simulation effect and can only be used in low-end applications. With the promotion of the market, the wick simulation structure that can simulate the dynamic flame has begun to appear. At present, the relatively high simulation degree can simulate the effect of the flame swinging with the wind; the structural principle can refer to the Chinese patent ZL201520794365.6, ZL201220059308. X et al., the structural principle of each of the above technical solutions has similarities, that is, the middle portion of the candle chip is arranged to be freely movable around the fulcrum, and then a magnet is arranged at the bottom of the candle chip, and then a variable magnetic field is generated by setting an electromagnet. The driving magnet generates a reversing action of a change in amplitude, thereby driving the candle chip to shake to simulate the effect of the wick swinging freely with the wind. However, there are still many defects in the wick simulation structure, as follows: 1. These structures can only simulate the effect of the candle wick swinging with the wind, but can not simulate the flame flame burning effect under the windless state; 2. Because the simulated flame swings freely with the wind, the swing amplitude and direction of the candle chip are random and uncontrollable, so it is necessary to reserve a large swing space for the lower end of the candle chip, and the diameter of the candlestick needs to be large. Cannot be used to simulate small diameter waxes Candle; 3, the candle light is generally powered by the battery, the voltage is lower, so the electromagnet drives the candle chip to oscillate at a slower frequency, the flame part of the candle chip can see a clear edge contour, no halo effect outside the candle flame, simulation The effect is poor; 4, the flame highlight area of the candle chip is simulated by the reflected light of the center of the flame piece illuminated by the LED lamp, but the illumination position does not change, and the candle chip is randomly oscillated at a large amplitude, which makes the flame The highlight area constantly deviates from the center of the candle chip, and the simulation effect is poor. 5. When the electromagnet generates the repulsive force that drives the candle chip to sway, it needs to continuously supply power, consumes a large amount of power, and has a short battery life.

Summary of the invention

It is an object of the present invention to provide a candle light that highly mimics the burning dynamics of a candle flame.

In order to achieve the above object, the technical solution adopted by the present invention is:

A simulated candle lamp comprising a casing, an LED light source, a candle chip and a vibration device; the top of the casing is provided with a wicking through hole; the candle chip is a flexible soft sheet, the candle chip has a candle a flame-shaped upper end portion, the lower end portion of the candle chip passes through the wicking through hole and is fixedly coupled to the vibration device, and the vibration device drives the upper end portion of the candle chip to vibrate back and forth; the LED light source Light is projected onto the front side of the upper end of the candle chip.

Compared with the existing artificial candle, the beneficial effects of the solution are as follows: 1. The vibration of the candle chip is driven by the vibration device, and when the lower end portion of the candle chip vibrates back and forth at a certain frequency, the upper end portion of the candle flame will be elasticized by itself. It has a larger amplitude than the lower end. Under the LED light projection, the soft flame of the vibrating flame will have a soft halo effect, and the top of the flame with the largest vibration amplitude has a certain curvature, so the halo effect More obvious; plus the candle chip swings back and forth, so the highlight area of the LED light projection is always in the center of the flame, with the halo of the edge, and the wax burning in the windless state The candle flame beats the same effect, and the simulation degree is extremely high. Even if it is observed at a close distance, it is difficult to distinguish the authenticity of the flame. 2. The vibration device directly connects the candle chip to drive the vibration, compared with the prior art sway driving method. The frequency and amplitude of the vibration of the candle chip are controllable, and since the candle chip has elasticity, the driving amplitude of the lower end portion can be small, so the space for simulating the candle can be made small, and can be applied to the simulation of the small-sized candle; 3. Compared with the prior art method of driving the candle chip by electromagnetic force, the small amplitude vibration driving method has low energy consumption, and the candle lamp has a longer use time and energy saving under the same conditions.

In a preferred embodiment, the vibration device includes an electromagnetic coil, a permanent magnet concentrically disposed on an outer circumference of the electromagnetic coil, a driving circuit board that provides an oscillation signal to the electromagnetic coil, and the electromagnetic coil and the permanent a vibrating diaphragm above the magnet, the vibrating diaphragm being fixedly coupled to the candle chip; the vibrating diaphragm vibrating under the interaction of a magnetic field generated by the electromagnetic coil and the permanent magnet. Further, the method further includes an inverted "T"-shaped iron core, an annular bracket, a weight, and a casing cap, the electromagnetic coil, the permanent magnet and the annular bracket being concentrically sleeved on the iron core from the inside to the outside; The top end of the annular support has an annular slab, the vibrating membrane is placed on the annular sill and has a gap with the top end surface of the iron core; the outer casing cap is disposed on the outer circumference of the annular support and the top surface There is a through hole through which the weight passes and fixes the diaphragm and the candle chip. The structure of this vibrating device is similar to that of an electromagnetic buzzer, but its vocal function is eliminated, and its vibration function is retained. Therefore, its structural design is simpler, but it retains many of its advantages: small size, simple structure and maturity. The cost is low and the power consumption is very low. Since the oscillating signal for driving the diaphragm is provided by a square wave having a certain duty ratio, the higher the frequency, the more power is saved.

As a preferred mode, the vibration device includes a piezoelectric ceramic piece with a silver electrode, and a multivibrator that drives the piezoelectric ceramic piece to vibrate. Structural principle of such a vibration device and piezoelectric buzzer Similarly, the sound function is also cancelled, and only its vibration function is retained. The structure is simpler, smaller, simple and mature, low power consumption, and low in cost.

As a preferred mode, the vibration device is a micro vibration motor. The micro-vibration motor technology is mature, and the vibration device of the present invention can achieve the desired effect, but the cost and energy consumption are slightly higher than the first two modes.

Further, the candle chip is further fixed to the housing below the fixing portion of the vibration device; the bottom end of the candle chip is fixed to form a point, and the vibration of the upper end portion is driven by the vibration device. The amplitude will be larger, so the flexibility of the candle chip material can be reduced when the desired simulation effect is achieved, or the vibration device can drive the candle chip with a smaller amplitude, which is lower in energy consumption and cost. The candle chip is a silica gel sheet or a rubber sheet. The silica gel sheet or the rubber sheet has semi-transparency in addition to elasticity and flexibility, and can be made into a diffuse reflection surface, so that the flame shape of the candle chip is softer and more realistic; A power supply device is disposed in the housing, and the power supply device supplies power to the LED light source and the vibration device.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

1 is a schematic cross-sectional view showing a preferred embodiment of a candle lamp of the present invention;

Figure 2 is a schematic exploded view showing the structure of the candle lamp of the embodiment of Figure 1;

Figure 3 is a cross-sectional view showing the structure of a portion of the candle lamp of the embodiment of Figure 1;

4 is a schematic view showing the appearance of an embodiment of a candle lamp of the present invention;

Figure 5 is a cross-sectional structural view showing an embodiment of the vibration device of the present invention;

Figure 6 is a schematic exploded view showing the structure of the vibrating device of the embodiment of Figure 5;

Figure 7 is a schematic view showing the structure of another embodiment of the vibration device of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings:

Referring to FIGS. 1 to 4, a simulated candle lamp includes a housing 1, an LED light source 2, a candle chip 3, a vibration device 4, a mounting bracket 5, and a power supply device 6. The housing 1 may be provided in various shapes or sizes, having a receiving cavity therein for providing various structures for driving the candle chip 3; the top of the housing 1 is provided with a wicking through hole 10, a wick through hole It is necessary to reserve the vibration space when the candle chip 3 vibrates and the projection hole of the LED light source 2 projected onto the surface of the candle chip 3. The candle chip 3 is a flexible soft sheet material, such as various silicone rubber materials, or flexible plastic materials such as TPU, TPV, TPE, etc., preferably a silicone sheet or a rubber sheet, and the silicone sheet or the rubber sheet has elasticity and Softness, also semi-translucent, and can be made into a diffuse reflective surface, making the flame shape of the candle chip softer and more realistic. The candle chip 3 has a candle-shaped upper end portion 31 through which the lower end portion 32 of the candle chip 3 passes and is fixedly coupled to the vibration device 4 through which the vibration device 4 passes. 5 is fixed in the casing 1; the vibration device 4 drives the upper end portion 31 of the candle chip 3 to vibrate back and forth; as a more preferred embodiment, the candle chip 3 is fixed to the vibration device 4 The lower portion is also fixed to the mounting bracket 5; the bottom end 320 of the candle chip 3 is fixed to form a fulcrum, and the vibration amplitude of the upper end portion 31 is larger under the driving of the vibration device 4, so that the desired simulation is realized. In effect, the elasticity requirement for the material of the candle chip 3 can be reduced, or the vibration device 4 can drive the candle chip 3 with a smaller amplitude, which is lower in energy consumption and cost. The light of the LED light source 2 is projected onto the front surface of the upper end portion 31 of the candle chip 3, and its preferred mounting position is obliquely fixed to the mounting bracket 5, and light is projected through the wicking through hole 10 to the candle. On the front side of the chip 3, of course, the LED light source 2 can also be disposed on the candle chip 3, and vibrate along with the candle chip 3, but its fixed position and angle are difficult to control. The power supply device 6 is the LED light source 2 and the vibration device 4 is powered. The power supply device 6 includes a battery case 61 disposed at the bottom of the casing 1, a battery pack 62, and a power switch 63 located outside the casing 1. The candle chip 3 is driven to vibrate by the vibration device 4, and when the lower end portion 32 of the candle chip 3 vibrates back and forth at a certain frequency, the candle-shaped upper end portion 31 has a larger amplitude than the lower end portion 32 due to its own elastic action, in the LED When the light of the light source 2 is projected, a soft halo effect appears on the edge of the soft flame flame, and the top of the flame flame having the largest vibration amplitude has a certain curvature, so the halo effect is more obvious; and the candle chip 3 is The front and rear swings, so the highlight area of the light projection of the LED light source 2 is always located in the central area of the flame, and cooperates with the halo of the edge, and the flame flame of the burning flame in the windless state is consistent, the simulation degree is extremely high, even if observed at close range It is also difficult to distinguish the authenticity of the flame. The vibration chip 4 directly connects the candle chip 3 to drive the vibration thereof, and the frequency and amplitude of the vibration of the candle chip 3 are controllable, and since the candle chip 3 has elasticity, the driving amplitude of the lower end portion 32 can be small, The space of the simulated candle can be made small, and can be applied to the simulation of small-sized candles. Compared with the method of driving the candle chip by electromagnetic force, the small-amplitude vibration driving method consumes less energy, and the candle lamp usage time under the same conditions. Longer and more energy efficient.

The vibrating device 4 functions to drive the lower end portion 32 of the candle chip 3 to vibrate back and forth at a certain frequency and amplitude, thereby driving the upper end portion 31 of the candle chip 3 to vibrate more greatly to achieve a simulation effect, and therefore, only needs to have a vibration function. The vibration device 4, which is small enough to be mounted in the casing 1, can achieve the simulation effect of the present embodiment, and the following are merely preferred embodiments.

Referring to FIGS. 5 to 6, a first embodiment of the vibration device includes an electromagnetic coil 41, a permanent magnet 42 concentrically disposed on an outer circumference of the electromagnetic coil 41, and a drive for providing an oscillation signal to the electromagnetic coil 41. a circuit board 43 and a vibrating diaphragm 44 disposed above the electromagnetic coil 41 and the permanent magnet 42. The vibrating diaphragm 44 is fixedly connected to the candle chip 3; the vibrating diaphragm 44 is in the electromagnetic The magnetic field generated by the coil 41 and the permanent magnet 42 vibrate together. The structure of the vibrating device 4 is similar to that of the electromagnetic buzzer, but its vocalization function is eliminated, and only its vibration function is retained. More specifically, the utility model further includes an inverted "T"-shaped iron core 45, an annular bracket 46, a weight 47 and an outer casing cap 48. The electromagnetic coil 41, the permanent magnet 42 and the annular bracket 46 are concentrically sleeved from the inside to the outside. On the iron core, the permanent magnet 42 and the annular bracket 46 may be integral or split; the top end of the annular bracket 46 has an annular sill 460, and the vibrating diaphragm 44 is placed in the annular sink. The table 460 has a gap with the top end surface of the iron core 45; the outer casing cap 48 is disposed on the outer circumference of the annular bracket 46 and has a through hole 480 on the top surface, and the weight 47 passes through the through hole 480 is connected and fixed to the vibration diaphragm 44 and the candle chip 3. Compared with the electromagnetic buzzer structure, the vibrating device 4 loses the key sounding structure of the electromagnetic buzzer because the through hole 480 at the top of the outer casing cap 48 is large or even without the outer casing cap 48: the resonance front cavity and the sound hole Therefore, there is no sounding function, so its structural design is simpler than the electromagnetic buzzer, and there is no need to strictly calculate the parameters of each component for sounding, but retains its many advantages: small size, simple and mature structure, low cost, The power consumption is very low, since the oscillation signal for driving the diaphragm 44 is provided by a square wave having a certain duty ratio, the higher the frequency, the more power is saved.

Referring to FIG. 7, a second embodiment of the vibration device includes a piezoelectric ceramic piece 410 with a silver electrode, and a multivibrator that drives the piezoelectric ceramic piece 410 to vibrate; of course, a piezoelectric ceramic piece The diaphragm 410 can also be bonded to the vibrating piece 411 of brass or stainless steel to expand the vibration amplitude, and the center of the vibrating piece 411 can be connected and fixed to the lower end portion 32 of the candle chip 3 by providing a connecting post 413; The diameter of the piece 411 and the weight of the connecting post 413 are designed on the premise that the vibrating piece 411 does not sound, and generally does not have a resonance cavity structure, and only the fixing bracket 412 is provided to prevent sounding. The structural principle of the vibrating device is The piezoelectric buzzer is similar, and its vocal function is also cancelled, leaving only its vibration Function, its structure is simpler and lower cost than piezoelectric buzzer, and its size is small, the structure is simple and mature, and the power consumption is very low.

A third embodiment of the vibration device: the vibration device is a micro vibration motor. The micro-vibration motor technology is mature, and the vibration device of the present invention can achieve the desired effect, but the cost and energy consumption are slightly higher than the first two modes.

The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical scope of the present invention are still within the scope of the technical solutions of the present invention.

Claims

A simulated candle lamp, comprising: a casing, an LED light source, a candle chip and a vibration device; the top of the casing is provided with a wicking through hole; the candle chip is a flexible soft sheet, The candle chip has a candle-shaped upper end portion, a lower end portion of the candle chip passes through the wicking through hole and is fixedly coupled to the vibration device, and the vibration device drives the upper end portion of the candle chip to vibrate back and forth; Light from the LED light source is projected onto the front side of the upper end of the candle chip.
A simulated candle lamp according to claim 1, wherein said vibration device comprises an electromagnetic coil, a permanent magnet concentrically disposed on an outer circumference of said electromagnetic coil, a driving circuit board for supplying an oscillating signal to said electromagnetic coil, And a vibrating diaphragm disposed on the electromagnetic coil and the permanent magnet, the vibrating diaphragm being fixedly connected to the candle chip; the magnetic field generated by the vibrating diaphragm in the electromagnetic coil and the permanent magnet Vibrate under the joint action.
A simulated candle lamp according to claim 2, further comprising an inverted "T" shaped iron core, an annular support, a weight and an outer casing, said electromagnetic coil, permanent magnet and annular support from the inside to the inside The outer concentric sleeve is sleeved on the iron core; the top end of the annular bracket has an annular sunken platform, and the vibrating membrane is placed on the annular countertop and has a gap with the top end surface of the iron core; The outer casing cap is disposed on the outer circumference of the annular bracket and has a through hole on the top surface, and the weight block passes through the through hole and connects and fixes the vibration diaphragm and the candle chip.
A simulated candle lamp according to claim 1, wherein said vibration means comprises a piezoelectric ceramic piece with a silver electrode, and a multivibrator for driving the vibration of said piezoelectric ceramic piece.
A simulated candle lamp according to claim 1, wherein said vibration device is a micro vibration motor.
A simulated candle lamp according to any one of claims 1 to 5, characterized in that the candle chip is also fixed relative to the housing below the fixed position of the vibration device.
A simulated candle lamp according to any one of claims 1 to 5, characterized in that the candle chip is a silicone sheet or a rubber sheet.
A simulated candle lamp according to any one of claims 1 to 5, wherein a power supply device is provided in the casing, and the power supply device supplies power to the LED light source and the vibration device.