Patent ID: 12222076

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure is further described below with reference to the accompanying drawings.

Embodiment 1

Referring toFIG.1toFIG.3, an electronic candle in this embodiment includes: a housing1, including a top wall11and a cylindrical peripheral wall12that form an accommodating chamber100, where the top wall11has a through hole in the center; a flame head2, passing upward through the through hole and including a candle flame-like luminous body21and a black simulated cotton core column22concentrically connected to the bottom of the luminous body21, where the luminous body21includes an LED lamp bead211and a light guide cup212located at the bottom of the LED lamp bead211, the LED lamp bead211and the light guide cup212are each a misty colloid component, a transmittance of the LED lamp bead211is higher than that of the light guide cup212, a first light-emitting chip211aand a second light-emitting chip211bare provided in the LED lamp bead211along a vertical central axis, the first light-emitting chip211alocated above emits warm white light upward, the second light-emitting chip211blocated below emits blue light downward, and light rays of the first light-emitting chip211aand the second light-emitting chip211bseparately change in light and dark; and a translucent lampshade3, fixed to the housing1and covering the periphery of the luminous body21, where the translucent lampshade3is a transparent material component, and transverse raster textures31are formed into an inner surface of the translucent lampshade3. The raster texture31has a slit width of 0.5 mm and a depth of 0.07 mm.

When in use, the first light-emitting chip211aemits warm white light upward, and the LED lamp bead211is a misty colloid component. According to the Tyndall effect, the in warm white light is scattered by misty colloid particles, so that the upper part and surrounding side of the first light-emitting chip211aon the luminous body21present white light with a high brightness, thereby simulating an effect of a bright inner flame200ain a real candle flame. After the warm white light emitted from the LED lamp bead211is diffracted by the transverse raster textures31of the translucent lampshade3, the light and shadow of the LED lamp bead211are stretched upward, and a layer of light yellow light and shadow appears on the periphery, especially the top, of the LED lamp bead211, so that an effect of a light yellow outer flame200bin a real candle flame can be simulated. The second light-emitting chip211bemits blue light downward. Similarly, according to the Tyndall effect, the blue light is scattered by misty colloid particles of the LED lamp bead211and the light guide cup212, and the concentration of the misty colloid particles of the light guide cup212is greater than that of the misty colloid particles of the LED lamp bead211, so that blue light is formed below the second light-emitting chip211bof the luminous body21and gradually deepened, thereby simulating an effect of a deeper blue flame center200cin a real candle flame. After the blue light from the light guide cup212is diffracted by the transverse raster textures31of the translucent lampshade3, the light and shadow of the light guide cup212are stretched downward to the periphery of the black simulated cotton core column22, thereby simulating a burning effect of a black cotton wick wrapped by the flame center200cin a real flame. In addition, after the light and shadow of the flame head2are dispersed by the raster textures31of the translucent lampshade3, the light and shadow blend with each other at a junction of the inner flame200a, the outer flame200b, the flame center200c, and the cotton wick, so that a natural transition of light and shadow between layers of a real candle flame can be simulated. The first light-emitting chip211aand the second light-emitting chip211bseparately have light and dark changes, so that the layers of light and shadow can simulate dynamic light and dark effects of a real flame. In addition, compared with the semi-transparent diffuser cover in the prior art, the translucent lampshade3in this solution is a transparent material component. Therefore, not only the light and shadow of the flame head2are brighter with more realistic colors, but also the raster textures31prevent an internal structure of the flame head2from being exposed. To sum up, the flame effect is highly simulated in this solution.

The luminous body21may be mounted fixedly or swingably. The fixedly mounted structure can be achieved by using the prior art, and therefore, is not described in detail. In this embodiment, the structure is mounted swingably, and referring toFIG.4andFIG.5, includes a swinging device4provided in the accommodating chamber100for driving the flame head2to swing. There are many mature swinging device solutions in the prior art, and details are not described herein. The swinging device4drives the flame head2to randomly swing, and the light and shadow of the flame head2are revealed through the raster textures31of the translucent lampshade3, so that a dynamic effect of a flame swinging with the wind can be simulated, thereby making a burning effect of the flame more realistic. In the swinging process, the raster textures31of the translucent lampshade3disperse the light and shadow, thereby blurring edges of the light and shadow of the flame. Compared with the prior art in which the outlines of the flame and the cotton wick are clear, the light and shadow of the flame in this solution are more realistic and natural.

In a preferred structure, the swinging device4includes: horizontal shafts41, formed by two pins211cof the LED lamp bead211vertically penetrating into the accommodating chamber100and bent to two outer sides separately, where the two horizontal shafts41on the two sides are provided concentrically; a support frame42, provided in the accommodating chamber100and including two vertical metal sheets421opposite to each other on the left and right, and a support slot422formed in an upper part of each of the metal sheets421, where the two horizontal shafts41removably pass through the support slots422on the two sides, respectively; a counterweight assembly43, including a columnar body431suspended and fixed to the two pins211cand a magnetic member432fixed to the bottom of the columnar body431, where the center of gravity of the counterweight assembly43is located on the vertical central axis of the flame head2; and a PCB44, horizontally provided at the bottom of the counterweight assembly43and electrically connected to bottom ends of the two metal sheets421by welding, where the PCB44is provided with a control chip for controlling operation of the first light-emitting chip211aand the second light-emitting chip211b, and an electromagnetic coil441provided correspondingly under the magnetic member432for driving the magnetic member432to swing.

The working principle is as follows: The control chip of the PCB44is electrically connected to the two pins211cof the LED lamp bead211through the metal sheets421on the two sides in a contact manner to control the first light-emitting chip211aand the second light-emitting chip211bto separately make light and dark changes. The electromagnetic coil441generates intermittent electromagnetic signals under the action of the control chip, thereby stimulating the magnetic member432to drive the luminous body to randomly swing around the horizontal shafts41. The horizontal shafts41are formed by bending the two pins211cof the LED lamp bead211. Therefore, the structure and assembly are simple and the overall weight is light. Compared with the existing swinging device, in this solution, energy consumption required for swinging is significantly reduced, so that the duration for using the electronic candle each time can be lengthened. The electrical connection between the horizontal shafts41and the metal sheets421in a contact manner allows the omission of an electrical connection line between the LED lamp bead211and the PCB44, thereby resolving the disadvantages in the prior art that the electrical connection line restricts the swing of the flame head2and makes the swing unnatural and that the electrical connection line is easy to crack during long-term swinging. In addition, this also simplifies the assembly of the product.

In this embodiment, the support frame42further includes a plastic frame45. The plastic frame45includes a bottom plate451and two vertical slots452extending vertically from the bottom. The metal sheet421is inserted and fixed in the vertical slot452. The PCB44is fixedly clamped to the bottom plate451. Further, a battery box5is fixed to the bottom of the accommodating chamber100of the housing1. The plastic frame45is fixedly clamped to a top surface of the battery box5. The plastic frame45can further strengthen the mounting structure of the PCB44and the metal sheets421, and facilitates the mounting and fixation of the flame head2and the swinging device4in the accommodating chamber100.

In this embodiment, the columnar body431includes an upper segment portion4311and a lower segment portion4312. The upper segment portion4311has an axial hole4313for the pin211cto pass through. Bonding surfaces of the upper segment portion4311and the lower segment portion4312each have a radially communicating radial hole4314for clamping the horizontal shafts41. Specifically, the upper segment portion4311and the lower segment portion4312can be fixed together through a plug connection structure. During assembly, the pins211cof the LED lamp bead211sequentially pass through the light guide cup212, the simulated cotton core column22, and the axial hole4313in the upper segment portion4311, and then the horizontal shafts41are bent to the outer sides and placed corresponding to the radial hole4314. Finally, the lower segment portion4312and the upper segment portion4311are plugged and fixed. In this way, the assembly of the pins211cand the columnar body431becomes simple. In other embodiments, the columnar body431may alternatively be two parts that are plug-fitted on the left and right.

In this embodiment, a limiting column4315parallel to the horizontal shaft41and used for limiting a range of horizontal movement of the columnar body431also extends from each of two sides of the columnar body431. There is a gap between each end of the limiting column4315and the metal sheet421, so that the columnar body431can swing freely without deviating to the two sides horizontally to cause jamming, and the flame head2can always maintain a central position on the top of the housing1.

In this embodiment, the translucent lampshade3is cylindrical and adapted to be sleeved over the peripheral wall12of the housing1and has a top end above the flame head2. The raster texture31is distributed at least in a part of the translucent lampshade3beyond the top wall11of the housing1. The translucent lampshade3causes the electronic candle to be in a shape of a teacup candle. Through the translucent lampshade3, not only a realistic dynamic effect of a flame can be displayed, but also an additional halo200dis produced at the periphery of the light and shadow of the flame under the action of the raster textures31, thereby simulating a more realistic effect of light and shadow closer to candle lighting.

Embodiment 2

Referring toFIG.6, other structures of this embodiment are basically the same as those of Embodiment 1, except that: the translucent lampshade3is in a shape of a flame and has the bottom fixed to a center of the top wall11of the housing1, and there is a gap space between an inner wall of the translucent lampshade3and an outer peripheral wall12of the flame head2. The translucent lampshade3causes the electronic candle to be in a shape of an ordinary candle, and the translucent lampshade3is used for simulating an outline of the flame. The gap space between the translucent lampshade3and the flame head2is used for both providing a swing space for the flame head2, and providing a light and shadow space for a part simulating the outer flame200bof the flame and a part simulating burning of the cotton wick wrapped by the flame center200c.

The foregoing descriptions are not intended to have any limitation on the technical scope of the present disclosure. Any alterations, equivalent changes, and modifications made to the foregoing embodiments in accordance with the technical essence of the present disclosure still fall within the scope of the technical solutions of the present disclosure.