WO2010057354A1

WO2010057354A1 - Electric fireplace

Info

Publication number: WO2010057354A1
Application number: PCT/CN2009/000039
Authority: WO
Inventors: 朱宏锋
Original assignee: 义乌市安冬电器有限公司
Priority date: 2008-11-20
Filing date: 2009-01-12
Publication date: 2010-05-27
Also published as: CN101576273A; CN101576273B

Abstract

The present invention discloses an electric fireplace with an inner imaging screen and an outer imaging screen for simulating flames, which includes a casing, a heating device provided within the casing, a light source for imaging, a light processing device provided over the light source, an artificial wood charcoal bed, and imaging screens abutting against the artificial wood charcoal bed. The imaging screens include an inner imaging screen and an outer imaging screen, the two imaging screens are partially transparent and reflective, and the artificial wood charcoal bed is located at the bottom of the two imaging screens.

Description

Electric fireplace

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a simulated fireplace, and more particularly to a multi-layer flame electric fireplace for interior and exterior imaging screens that are more realistic in visual effects. Background technique

In prior art electric fireplaces, the flame simulating device typically employs an electronic flame or a simulated flame to impart an optical visual effect to the fireplace and to provide a decorative effect. Fireplace flame simulators are generally divided into two categories. The first type is a set of ribbons suspended above the simulated combustion object, behind a translucent plastic screen, which is simulated by air blowing the streamer and projecting onto the screen to produce light sloshing. A flame-burning flame, an electric fireplace pick-up device disclosed in Japanese Patent Publication No. CN2699165, issued May 11, 2005, discloses the use of this type of construction. The second type is to install a moving light source driven by a motor after the dendritic charcoal combustion medium, and a fire-shaped wall, a transparent screen and a mirror glass are arranged at the front, and the moving light source drives the rotating shaft of the light source or the hollow column type. The transparent cover, the light source emitted by the reflection of the light source or the light transmission hole on the transparent cover, forms the shape of the flame through the flame hole on the fire wall, and then projects onto the transparent screen and the mirror glass to generate flame vision. This type of structure is adopted in a flame simulating device in an electric heater disclosed in the patent document of the publication No. CN1327138, which is published on Dec. 19, 2001. Both types of devices can simulate the visual effect of the flame, but there are also obvious deficiencies. The image displayed on the imaging screen by projection, the flame effect is displayed in the visual effect of burning behind the simulated charcoal, lacking the depth and depth. , lack of three-dimensionality. The publication date is April 23, 2008, and the publication number is CN201050836. The patent document discloses a three-dimensional flame simulation electric fireplace including a housing with an electric fireplace, an imaging light source, a light processing device, and a simulated charcoal disposed in front of the housing cavity, which is semi-transparently placed behind the simulated charcoal. The imaging screen is provided with a second imaging screen in front of the imaging screen, and the second imaging screen is disposed substantially parallel to the imaging screen. The light generated by the imaging light source passes through the light processing device, and is projected onto the imaging screen to form a primary flame analog image, and part of the light is projected onto the second imaging screen through the imaging screen to form a secondary flame analog image, when the imaging screen and the second imaging screen When a sufficient distance is maintained between them, since the front and rear positions of the flame images of the two are different, a flame visual effect having a depth level can be formed. The structure utilizes the translucent property of the imaging screen to transmit part of the light to the second imaging screen, thereby forming a front and rear two-layer flame simulation image having a certain stereoscopic effect. However, the structure only displays the flame simulation image on the front and rear two-layer imaging screens, and has a small flame layer, a small depth range, and a multi-layer structure lacking a three-dimensional flame, and the stereoscopic effect is poor. In addition, most of the traditional electric fireplaces use incandescent lamps as the light source. The simulated flames are mostly fire red, and their colors are relatively monotonous. Disclosure of invention

The invention solves the problem that the prior art electric fireplace has less layers of flame, small depth range, lack of multi-layer structure of three-dimensional flame, and poor stereoscopic effect, and provides a rich layer of flame, large depth range and three-dimensionality. Strong internal and external imaging screen multi-layer flame electric fireplace.

Another object of the present invention is to provide an inner and outer imaging screen multi-layer flame electric fireplace having a colored flame effect in order to solve the problem of relatively monotonous flame color in the prior art electric fireplace.

The specific technical solution adopted by the present invention for achieving the above technical purpose is as follows: The electric fireplace of the present invention comprises a casing, a heating device disposed on the casing, an imaging light source and light disposed above the imaging light source The processing device, the simulated carbon bed and the imaging screen close to the simulated carbon bed, the imaging screen comprises an inner imaging screen and an outer imaging screen, the inner imaging screen and the outer imaging screen are semi-transparent reflective structures, and the simulated carbon bed is arranged for internal and external imaging. The bottom position of the screen. The prior art imaging screen usually has an irregular matte surface or a frosted surface, and the imaged light projected by the light processing device forms a viewable flame simulation image under the action of the irregular convex surface or the frosted surface. . This imaging screen does not have a reflective imaging function, and the reflection caused by the matte surface or the matte surface is diffuse reflection and cannot be imaged. The invention adopts an inner and outer double-layer imaging screen with a transflective structure, and the imaging light projected by the light processing device can not only be imaged on one of the imaging screens through one of the imaging screens, thereby forming a flame image of the inner and outer double layers, and The reflection function of the imaging screen, the flame image on the inside and outside imaging screen will be reflected multiple times between the two imaging screens, thus forming a flame image with rich layers, large depth range and strong stereoscopic effect, just like in two mirrors. Place an object between them, and there will be countless mirrors of the object in the mirror. In addition, as the number of reflections increases, the brightness of the flame image decays rapidly, allowing us to see the highest brightness in the center of the flame, and the simulated true combustion situation in which the brightness of the flame away from the center of the flame is gradually dimmed. The transflective properties of the imaging screen can be achieved by coating or pasting a transflective material on a transparent material, or by using a material that has transflective properties.

Preferably, the light transmittance of the inner and outer imaging screens is 70% to 85%, and the light reflectance is 15% to 30%. If the transmittance of the inner imaging screen and the outer imaging screen is too high, the imaging light is difficult to form a clear image on the imaging screen; if the reflection ratio of the inner imaging screen and the outer imaging screen is too high, the imaging light is mostly reflected, and the imaging is transmitted through the imaging. There is very little light on the screen, and we can't see the flame image.

Preferably, the cross section of the inner imaging screen is a fold line or a curved structure, and the outer imaging screen is a planar structure. The inner imaging screen has a cross-section or a curved structure. After the light is reflected, one or more concentrated parts of the flame combustion can be displayed on the external imaging screen to create a realistic flame burning scene. Increase the simulation of the flame image. The inner imaging screen can also adopt a planar structure.

Preferably, the simulated carbon bed comprises a plurality of light-emitting blocks having a plurality of refractive surfaces on the surface, a cavity is arranged in the light-emitting block, and an LED lamp is arranged in the cavity. The LED lamp has the advantages of small size, colorful color, long life and low energy consumption. LED lights are arranged in the carbon body of the traditional electric fireplace carbon bed, and the light-emitting blocks in different positions can be configured with LED lights of different colors, and the LED lights are illuminated. When different colors of light can be emitted, the light is refracted by a plurality of refractive surfaces on the surface of the light-emitting block to reach the inner imaging screen and the outer imaging screen, forming a plurality of spots of different sizes, shapes, strengths and colors, and then Through the reflection of the internal and external imaging screens, we can see the color and layered fireworks images from the external imaging screen. The shape of the light-emitting block may be spherical or other structures that facilitate the refraction of light in multiple directions.

The simulated carbon bed can also adopt the following scheme: The simulated carbon bed is a light-emitting block with a plurality of refractive surfaces on the surface and a translucent block having a charcoal shape, and a cavity is arranged in the light-emitting block, and an LED lamp is arranged in the cavity. The transparent block has a charcoal shape, similar to the carbon block structure of the traditional carbon bed. When the carbon lamp in the light block is lit, we can see the colorful fireworks picture from the external imaging screen; when the LED light is turned off , it has the fireworks effect of the traditional simulated carbon bed.

The simulated carbon bed can also adopt the traditional carbon bed structure, that is, the simulated carbon bed is a translucent strip structure with a simulated carbon surface on the front upper part and a vacant space on the lower part.

For a simulated carbon bed comprising a plurality of light-emitting block structures having a plurality of refractive surfaces on the surface, it is placed between the inner and outer imaging screens. Since the simulated carbon bed has a light-emitting block that can emit light itself, the simulated carbon bed needs to be placed behind the outer image screen, which prevents the light from the light-emitting block from directly coming to the user's eyes, thereby affecting the realism of the simulated fireworks picture.

When using the traditional carbon bed structure, the simulated carbon bed can be set between the inner and outer imaging screens. When setting the inner and outer two-layer simulated carbon bed setting scheme between the inner and outer imaging screens, the simulated carbon bed between the inner and outer imaging screens is higher than the simulated carbon disposed on the front side of the outer imaging screen. bed. The carbon surface on the cross section of the simulated carbon bed is generally a curved surface structure, and the curved surface structure of the front side simulated carbon bed is connected with the curved surface structure of the rear simulated carbon bed. This is based on the fact that the charcoal fire of a real fireplace is generally low in the periphery, the middle is high and the surface is often curved. This arrangement makes the simulated carbon bed more realistic. In addition to seeing the front simulated carbon bed from the front, through the illumination of the imaging source, we can also see the post-simulation carbon bed behind the external imaging screen to form a realistic image with a deep layering.

Preferably, the light processing device is a reflective device composed of a rotating shaft driven by a motor and a flexible reflective strip disposed on the rotating shaft, and the light processing device is disposed on a lower rear side of the inner imaging screen, and the flexible reflective strip is suspended at one end and fixed at one end. On the rotating shaft, the length of the flexible reflective strip is greater than the distance from the rotating shaft to the inner imaging screen. Since the length of the flexible reflective strip is greater than the distance from the rotating shaft to the inner imaging screen, the flexible reflective strip will hit the rear wall of the inner imaging screen electric fireplace casing when rotating, thereby generating irregularity jump, so that the imaging light source passes through the reflective on the rotating shaft. After the strip is reflected, a bottom-up, large-scale undulating motion trajectory is obtained on the imaging screen to create a dynamic, undulating dynamic flame effect. On the other hand, after the flexible reflective strip touches, the simulated carbon bed will emit a sound similar to that of charcoal burning, so that the electric fireplace not only simulates the visual effect, but also has an auditory realistic effect, so that the user is really cutting. Feel the existence of the fireplace.

Preferably, a light source remote control circuit is further disposed in the casing of the electric fireplace, and the light source remote control circuit controls the brightness change of the imaging light source according to a program set by the remote controller to control the brightness or color change of the LED lamp. Since the actual use of the fireplace will always change its intensity of combustion over time, the prior art electric fireplace usually has only one burning intensity, that is, the flame of the electric fireplace throughout its use. The brightness is basically the same, which makes the fireplace lack of realism. Therefore, a light source remote control circuit is arranged in the casing of the electric fireplace, and the light source remote control circuit controls the brightness change of the imaging light source according to the program set by the remote controller, which can be completely simulated. The natural state of the fireplace changes the brightness of the combustion process to achieve the best simulation results. At the same time, the remote control circuit of the light source can also control the brightness and color change of the LED light according to the preference of the user, so as to meet different preferences of different users for simulating the fireworks picture. In addition, the brightness and color change control of the light source is controlled by the remote controller, and the user can control it without being close to the electric fireplace, and the operation is very convenient.

The essential effect of the invention is that it effectively solves the problem that the prior art electric fireplace has less layers of flame, small depth range, lack of multi-layer structure of three-dimensional flame, and poor stereoscopic effect, and at the same time, solves the current electricity problem. The flame color of the fireplace is more monotonous. The invention utilizes the semi-transmissive reflective material to transmit light and reflect light characteristics, and forms a flame image with rich layers, large depth range and strong stereoscopic effect by multiple reflection of light, and only the prior art Compared with an imaging screen that has a light-transmitting function, no reflective energy, or a poor reflective function, it is an essential difference in the design of an electric fireplace imaging screen. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a multi-layer flame electric fireplace for an inner and outer image forming screen of the present invention.

2 is a schematic view showing another structure of the multi-layer flame electric fireplace of the inner and outer image forming screen of the present invention.

Figure 3 is a left side view of Figure 1.

Figure 4 is a left side view of Figure 2.

Fig. 5 is a schematic view showing the structure of a multi-layer flame electric fireplace light-emitting block of the inner and outer image forming screen of the present invention. Figure 6 is a cross-sectional view showing the light-emitting block of the multi-layer flame electric fireplace of the inner and outer image forming screen of the present invention. Figure 7 is a schematic view showing the structure of a cross section of the image forming screen in the multi-layer flame electric fireplace of the inner and outer image forming screen of the present invention.

Fig. 8 is a view showing another configuration of a cross section of the image forming screen in the multi-layer flame electric fireplace of the inner and outer image forming screen of the present invention. Best way to implement the invention

The specific embodiments of the technical solutions of the present invention will be further described below by way of embodiments and with reference to the accompanying drawings.

Example 1

In the embodiment 1 shown in FIG. 1 and FIG. 3, the inner and outer image forming screen multi-layer flame electric fireplace comprises a casing 11, a heating device 14 disposed on the casing, an imaging light source 13, and a light processing device disposed above the imaging light source. 8. The simulated carbon bed and the imaging screen next to the simulated carbon bed, the imaging screen includes an inner imaging screen 1 and an outer imaging screen 2, and the inner imaging screen 1 and the outer imaging screen 2 are semi-transparent reflective structures, and the inner imaging screen 1 The light transmittance of the external imaging screen 2 is 80%, the light reflectivity is 20%, the cross section of the inner imaging screen 1 is a single fold line structure as shown in Fig. 7), and the outer imaging screen 2 is a planar structure. The simulated carbon bed 3 is disposed at the bottom position of the inner and outer imaging screens, and the simulated carbon bed 3 is a spherical light-emitting block 4 having a plurality of refractive surfaces on the surface and a translucent block 7 having a charcoal shape, which is disposed between the inner and outer imaging screens and emits light. A cavity 5 is provided in the block 4, and an LED lamp 6 is provided in the cavity 5 (see Fig. 5 and Fig. 6). The color of the LED lamp 6 in the cavity 5 of the different light-emitting block 4 is different. The light processing device 8 is a retroreflective device composed of a rotating shaft 9 driven by a motor and a flexible reflective strip 10 disposed on the rotating shaft 9. The light processing device 8 is disposed on the lower rear side of the inner imaging screen 1, and the flexible reflective strip 10 is The end is suspended, and one end is fixed on the rotating shaft 9. The length of the flexible reflective strip 10 is greater than the distance from the rotating shaft 9 to the inner imaging screen 1. Inside the housing 11 of the electric fireplace A light source remote control circuit 12 is also provided. The light source remote control circuit 12 controls the brightness change of the imaging light source 13 according to a program set by the remote controller to control the brightness or color change of the LED lamp 6. In addition, the inner wall of the electric fireplace is painted black to absorb light, preventing the diffuse reflection of light from affecting the visual effect of the fireplace.

When the inner and outer imaging screen of the embodiment 1 is operated by the multi-layer flame electric fireplace, a part of the light emitted by the imaging light source is directly irradiated onto the simulated carbon bed, and under the illumination of the light, the translucent block on the carbon bed exhibits a charcoal fire burning condition, and the inside and outside imaging is performed. The reflection of the screen, this "burning of charcoal fire" is stretched, and the image away from the real carbon bed is dark, thus forming a realistic effect of large depth and strong three-dimensional effect. At the same time, the LED lights in the light-emitting block illuminate, and emit light of various colors, which are refracted by the plurality of refracting surfaces on the surface of the light-emitting block to reach the inner imaging screen and the outer imaging screen, and then act through the internal and external imaging screens. The fireworks display that we see from the external imaging screen is more colorful. In addition, after the electric fireplace starts working, the motor rotates to drive the rotating shaft to rotate, and the flexible reflective strip disposed on the rotating shaft rotates to image part of the light source; the ^ line is reflected by the flexible reflective strip to the inner and outer imaging screen, and the inner and outer imaging screens form a flame. Bottom-up dynamic effects. Since the length of the flexible reflective strip is greater than the distance from the rotating shaft to the inner imaging screen or the rear wall of the electric fireplace housing, the flexible reflective strip will hit the inner imaging screen or the rear wall of the electric fireplace housing when rotated, thereby generating an irregular, abrupt The upward jump of the image causes the imaging light source to be reflected by the reflective strip on the rotating shaft to obtain a large undulating light trajectory on the imaging screen, creating a dynamic, undulating dynamic flame effect, and this dynamic change will also pass through the inside and outside. The imaging screen is reflected multiple times to form a large depth stereo effect. On the other hand, after the flexible reflective strip touches, the simulated carbon bed or the rear wall of the electric fireplace shell emits a sound similar to that of charcoal burning, so that the electric fireplace not only simulates the visual effect of the fireplace, but also has a realistic sense of hearing. The sound makes the user feel the existence of the fireplace. In addition, due to internal imaging The cross-section of the screen is a single-fold line structure, which reflects the light while deflecting the light to the center of the screen of the imaging screen, thereby forming a flame effect with a high center flame intensity and a waning around.

The brightness change of the imaging light source is controlled by the remote control circuit of the light source, and the remote control circuit of the light source controls the brightness change of the imaging light source according to the program set by the remote controller, thereby completely simulating the brightness change of the fireplace combustion process in the natural state, and achieving the best simulation effect, and at the same time, The light source remote control circuit can also control the brightness or color change of the LED light according to the user's preference. By adjusting the brightness of the LED light and its color combination, different users can enjoy different preferences for the simulated fireworks picture.

Example 2

In the embodiment 2 shown in Fig. 2 and Fig. 4, the simulated carbon bed 3 is a translucent strip-like structure in which the front upper portion is provided with a simulated carbon surface and the lower portion is vacant. The simulated carbon bed 3 is disposed between the inner and outer image forming screens and the front side of the outer image forming screen 2, and the simulated carbon bed disposed between the inner and outer image forming screens is higher than the simulated carbon bed disposed on the front side of the outer image forming screen 2. The carbon surface on the cross section of the simulated carbon bed is generally a curved surface structure, and the curved surface structure of the front side simulated carbon bed is connected with the curved surface structure of the rear simulated carbon bed, and the cross section of the inner imaging adopts a curved structure (see 8), the light transmittance of the inner image forming screen 1 and the outer image forming screen 2 was 75%, and the light reflectance was 25%, and the rest was the same as in the first embodiment.

When the inner and outer imaging screen of the embodiment 2 is operated by the multi-layer flame electric fireplace, part of the light emitted by the imaging light source is directly irradiated onto the front simulated carbon bed and the post-simulated carbon bed, since the front and rear simulated carbon beds are all translucent and the carbon surface is dyed. In color, under the illumination of the lamp, the carbon bed exhibits the color of charcoal fire. At the same time, the simulated carbon bed has two layers inside and outside, and then the simulated carbon bed is higher than the front simulated carbon bed. From the front, the front simulated carbon bed appears. The vivid charcoal fire burns the color, and then the simulated carbon bed is darker in color due to the two-layer imaging screen. It shows the burning color of the charcoal fire in the far position. At the same time, due to the reflection of the internal and external imaging screens, we can see more An image of a carbon bed, and away from reality The image of the carbon bed is dark, so that the charcoal fire on the fireplace forms a realistic effect of a charcoal fire with a sense of depth and three-dimensionality. In addition, the cross-section adopts a curved inner imaging screen, so that the reflected image has a partial enlargement and partial reduction on the external imaging screen, which increases the ornamental of the dynamic flame. The structure of the electric fireplace flame simulation, the combustion sound simulation, and the brightness change simulation of the fireplace combustion process are the same as in the first embodiment.

Claims

Rights request

1. A multi-layer flame electric fireplace for an inner and outer imaging screen, comprising a casing, a heating device disposed on the casing, an imaging light source, and a light processing device disposed above the imaging light source, an artificial carbon bed, and an imaging close to the simulated carbon bed The screen is characterized in that: the imaging screen comprises an inner imaging screen (1) and an outer imaging screen (2), and the inner imaging screen (1) and the outer imaging screen (2) are semi-transparent reflective structures, and the simulated carbon bed (3) ) Set the bottom position of the inside and outside imaging screen.

2 . The inner and outer imaging screen multi-layer flame electric fireplace according to claim 1 , wherein the inner imaging screen ( 1 ) and the outer imaging screen ( 2 ) have a light transmittance of 70% to 85%, and a reflectance rate. It is 15% ~ 30%.

The multi-layer flame electric fireplace according to claim 1, wherein the inner imaging screen (1) has a cross-sectional line or a curved structure, and the outer imaging screen (2) has a planar structure.

4. The inner and outer imaging screen multi-layer flame electric fireplace according to claim 1, wherein the simulated carbon bed (3) comprises a plurality of light-emitting blocks (4) having a plurality of refractive surfaces on the surface, and the light-emitting blocks (4) There is a cavity (5) inside, and an LED lamp (6) is arranged in the cavity (5).

The inner and outer image forming screen multi-layer flame electric fireplace according to claim 1, wherein the simulated carbon bed (3) is a plurality of light-emitting blocks (4) having a plurality of refractive surfaces on the surface and a charcoal shape. The translucent block (7) has a cavity (5) in the light-emitting block (4), and an LED lamp (6) is arranged in the cavity (5).

The multi-layer flame electric fireplace according to claim 1, wherein the simulated carbon bed (3) is a translucent strip structure having a simulated carbon surface on the front upper portion and a vacant space in the lower portion.

7. The inner and outer imaging screen multilayer flame wall according to claim 1 or 2 or 3 or 4 or 5 Furnace, characterized in that the simulated carbon bed (3) is placed between the inner and outer imaging screens.

8. The inner and outer imaging screen multi-layer flame electric fireplace according to claim 1 or 2 or 3 or 6, wherein the simulated carbon bed (3) is disposed between the inner and outer imaging screens and the front side of the outer imaging screen (2) The simulated carbon bed disposed between the inner and outer imaging screens is higher than the simulated carbon bed disposed on the front side of the outer imaging screen (2).

9. The inner and outer imaging screen multi-layer flame electric fireplace according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the light ray device (8) is a motor driven shaft (9) and is disposed on the rotating shaft (9) A reflective device formed by the flexible reflective strip (10), the light processing device (8) is disposed on the lower rear side of the inner imaging screen (1), and the flexible reflective strip (10) is suspended at one end and fixed at one end. On the shaft (9), the length of the flexible reflective strip (10) is greater than the axis of rotation (9) to the inner imaging screen

The distance of (1).

10. The inner and outer imaging screen multi-layer flame electric fireplace according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the housing (11) of the electric fireplace is further provided with a source remote control circuit (12) The light source remote control circuit (12) controls the brightness change of the imaging light source (13) according to a program set by the remote controller, and controls the brightness or color change of the LED light (6).

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