Projection device for ambient decoration having a driving device connected to a gear of a reflective medium

A projection device for ambient decoration may include a first light-emitting assembly comprising at least one first incoherent light source, a reflective medium, and a first driving device. The first light-emitting assembly may further include a mount recessed internally to define a placing groove adapted to the reflective medium, a first through-hole and a placing recess on one side of the first through-hole arranged at a bottom of the placing groove, a fixing column arranged in a center of the placing recess, and a second through-hole arranged at a bottom of the reflective medium. The first driving device may be coupled to the reflective medium, the fixing column may pass through the second through-hole into the reflective medium, and the at least one first incoherent light source may be connected to the fixing column.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority benefit of Chinese invent Application No. 202221392587.1, filed on Jun. 2, 2022, and the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to projection devices, and in particular to a projection device for ambient decoration having a driving device connected to a gear of a reflective medium.

BACKGROUND

Ambient lights, used in indoor places such as bedrooms, etc., create a starry sky and other environmental projection shape by direct projection of lamps, so as to create the corresponding atmosphere. Existing ambient projection lights, which are basically cloud-like or water ripple star lights, correspond to a single lighting effect and is easy for people to produce visual fatigue.

At the same time, the existing ambient lights use drive components to drive the movement of the light source, which produces a single light effect, and the corresponding light source circuit board is not easy to fix, easy to shake in use, leading to internal wear and tear and reducing the service life.

SUMMARY OF THE DISCLOSURE

Aiming at the above problems existing in the related art, the present disclosure provides a projection device for ambient decoration.

According to the first aspect of the present disclosure, a projection device for ambient decoration is provided. The projection device may include a first light-emitting assembly, a control assembly and an audio assembly, the first light-emitting assembly and the audio assembly respectively provided in two cavities which are capable of rotating relative to each other, the first light-emitting assembly and the audio assembly respectively electrically connected to the control assembly. The first light-emitting assembly may include at least one first incoherent light source, a reflective medium, a first condenser lens, a first driving device, a first driving gear, and a first driven gear. The first light-emitting assembly may further include a mount recessed internally to define a placing groove adapted to the reflective medium, a first through-hole and a placing recess on one side of the first through-hole arranged at a bottom of the placing groove, a fixing column arranged in a center of the placing recess, and a second through-hole arranged at a bottom of the reflective medium. The fixing column with a height higher than those of the placing recess and the second through-hole may pass through the second through-hole into the reflective medium, the first driving gear may be located in the first through-hole and connected to the first driving device, the first driven gear may be connected to the reflective medium and located in the placing recess, the at least one first incoherent light source may be connected to the fixing column, and the first condenser lens may be arranged above the reflective medium.

Typically, the projection device may further comprise an upper cavity and a lower cavity. The first light-emitting assembly may be arranged in the upper cavity. The upper cavity may be provided with a light-transmitting hole for the first condenser lens to pass through. The audio assembly may be arranged in the lower cavity. The control assembly may be arranged outside of the lower cavity. The upper cavity may be connected to the lower cavity by a magnetic adsorption.

Typically, a bottom of the upper cavity may be provided with a long iron piece. Atop of the lower cavity may be provided with at least one magnet. The upper cavity may be adapted to cling to the lower cavity by the magnetic adsorption when the bottom of the upper cavity is close to the top of the lower cavity.

Typically, the projection device may further comprise a third cavity. The control assembly may be arranged in the third cavity. The control assembly may comprise a control circuit board arranged in the third cavity and a button assembly electrically connected to the control circuit board.

Typically, the audio assembly may comprise a speaker. An audio control module may be arranged on the control circuit board. The speaker may be electrically connected to the audio control module.

Typically, the first light-emitting assembly may further comprise a fixing ring pressing the first condenser lens onto the mount.

Typically, an exterior of the upper cavity corresponding to a location of the first condenser lens may be provided with a light-transmitting protective cover.

Typically, the upper cavity may be in a shape of a dog's head, the lower cavity may be in a shape of the dog's body in a sitting position, and the third cavity may be in a shape of a backpack.

Typically, the projection device may further comprise a laser assembly. The laser assembly may comprise at least one coherent light source and at least one diffraction medium. The at least one diffraction medium may be arranged above the at least one coherent light source. The at least one coherent light source may irradiate towards the at least one diffraction medium.

According to the second aspect of the present disclosure, a projection device for ambient decoration is provided. The projection device may include a first light-emitting assembly. The first light-emitting assembly may include at least one first incoherent light source, a reflective medium, a first condenser lens, a first driving device, a first driving gear, and a first driven gear. The first light-emitting assembly may further include a mount recessed internally to define a placing groove adapted to the reflective medium, a first through-hole and a placing recess on one side of the first through-hole arranged at a bottom of the placing groove, a fixing column arranged in a center of the placing recess, and a second through-hole arranged at a bottom of the reflective medium. The fixing column with a height higher than those of the placing recess and the second through-hole may pass through the second through-hole into the reflective medium, the first driving gear may be located in the first through-hole and connected to the first driving device, the first driven gear may be connected to the reflective medium and located in the placing recess, the at least one first incoherent light source may be connected to the fixing column, and the first condenser lens may be arranged above the reflective medium.

Typically, the reflective medium may be hemispherical. The first driven gear and the reflective medium may be integrally formed. The first driven gear may be arranged at a bottom center of the reflective medium.

Typically, a periphery of the placing recess may be provided with a surrounding wall.

Typically, an upper end of the fixing column may be provided with a limit protrusion. Each of the at least one first incoherent light source may comprise a lamp board and at least one lamp bead arranged on the lamp board. The lamp board may be opened with an assembly hole adapted to the limit protrusion. The lamp board may be fixed on the fixing column through the assembly hole and the limit protrusion. The lamp board may be locked by at least one screw.

Typically, the projection device may further comprise a laser assembly. The laser assembly may comprise at least one coherent light source and at least one diffraction medium. The at least one diffraction medium may be arranged above the at least one coherent light source. The at least one coherent light source may irradiate towards the at least one diffraction medium.

According to the third aspect of the present disclosure, a projection device for ambient decoration is provided. The projection device may include a first light-emitting assembly. The first light-emitting assembly may include at least one first incoherent light source, a reflective medium, and a first driving device. An inner surface of the reflective medium may consist of a plurality of irregular reflective surfaces connected to each other. A quantity of the reflective surfaces may be 12 or more. The first light-emitting assembly may further include a mount recessed internally to define a placing groove adapted to the reflective medium, a first through-hole and a placing recess on one side of the first through-hole arranged at a bottom of the placing groove, a fixing column arranged in a center of the placing recess, and a second through-hole arranged at a bottom of the reflective medium. The first driving device may be arranged in the first through-hole and drivingly connected with the reflective medium, the fixing column may pass through the second through-hole into the reflective medium, and the at least one first incoherent light source may be connected to the fixing column.

Typically, a first condenser lens may be arranged above the first light-emitting assembly. The at least one first incoherent light source may horizontally irradiate the reflective medium. Light from the at least one first incoherent light source may be reflected by the reflective medium to the first condenser lens and then refracted by the first condenser lens and then emitted.

Typically, the projection device may further comprise a second light-emitting assembly comprising at least one second incoherent light source, a projection base, a second condenser lens, a film sheet and a film sheet pad. The second condenser lens, the film sheet and the film sheet pad may be arranged in the projection base. The projection base may be provided with a third through-hole. The at least one second incoherent light source may pass through the third through-hole. The second condenser lens may be arranged above the at least one second incoherent light source. The film sheet may be arranged above the second condenser lens by the film sheet pad.

Typically, the projection device may further comprise a laser assembly. The laser assembly may comprise at least one coherent light source and at least one diffraction medium. The at least one diffraction medium may be arranged above the at least one coherent light source. The at least one coherent light source may irradiate towards the at least one diffraction medium.

Typically, the projection device may further comprise a second driving assembly configured to drive a movement of the laser assembly.

Typically, the projection device may further comprise a second driving gear connected to the second driving assembly and a second driven gear connected to the at least one diffraction medium. The second driving assembly may be configured to drive the at least one diffraction medium based on cooperation of the second driving gear and the second driven gear.

The present disclosure can use the mount to place the reflective medium. The first driving gear and the first driven gear can be limited and fixed by the first through-hole and the placing recess in the mount respectively. The first driving device is configured to drive the reflective medium to rotate in the mount through cooperation of the first driving gear and the first driven gear. The at least one first incoherent light source can be arranged in the reflective medium through the fixing column. The light reflected by the reflective medium can continuously move and change when the first driving device drives the reflective medium to rotate, presenting a lighting effect similar to dynamic water ripple. The at least one first incoherent light source not rotating and the setting of the mount can ensure that the entire first light-emitting assembly is compact and not loose, which can ensure the life of the projection device. The projection device comprising the first light-emitting assembly may have a simple and compact structure, which effectively improves the diversity of lighting effects of the projection device and ensures the life of the projection device.

LIST OF REFERENCE NUMERALS

DETAILED DESCRIPTION

The present disclosure will be described clearly and thoroughly herein by accompanying with appended figures of some embodiments. Apparently, the embodiments are only part of the present disclosure, and are not the whole disclosure. For the person of ordinary skill in the art, other embodiments may be obtained based on the provided embodiments without any creative work, and the other embodiments are also covered by the present disclosure.

The embodiments are described with reference to the accompanying drawings, in order to illustrate specific embodiments of the present disclosure that can be implemented. In the specification, it can be understood that, directional terms recited in the present disclosure, such as “top”, “bottom”, “upper”, “lower”. “front”, “rear”, “left”, “right”, “above”, “under”, and the like, only explain the relative positional relationship, motion, etc. between the various elements under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional terms will change accordingly. Thus, the directional terms used here are only for better and more clearly describing and understanding the present disclosure, and are not intended to indicate or imply that the devices or the elements are disposed to locate at the specific directions or are structured and performed in the specific directions, which could not to be understood as limiting the present disclosure.

In addition, terms such as “first”, “second”, “third”, and the like are used herein for purposes of description, and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features. Thus, the feature defined with “first”, “second”, “third”, and the like may include one or more of such a feature. Further, when “and/or” appears throughout the present disclosure, it means three concurrent solutions are included. For example. “A and/or B” includes solution A, or solution B. or a solution satisfying both A and B. Moreover, the embodiments and the features recited in the embodiments of the present disclosure may be combined with each other without confliction. However, the combination must be based on the ability of realization by the person of ordinary skill in the art. When a combination is contradictory or cannot be realized, it should be considered that such combination does not exist and is not within the scope of protection claimed by the present disclosure.

First Embodiment

Referring toFIGS.1-5,9and10, a projection device for ambient decoration according to the present embodiment may include a first light-emitting assembly20. The first light-emitting assembly20can be a light-emitting device configured to project light with the effect similar to water ripple in the projection device for ambient decoration.

The first light-emitting assembly20may include at least one first incoherent light source21, a reflective medium22, a first condenser lens24, a first driving device25, a first driving gear26, and a first driven gear23. The first condenser lens24may be arranged above the reflective medium22.

The first light-emitting assembly20may further include a mount27. The mount27can be recessed internally to define a placing groove271adapted to the reflective medium22. A bottom of the placing groove271can be provided with a first through-hole272and a placing recess273on one side of the first through-hole272. The first driving gear26may be located in the first through-hole272and connected to a drive shaft of the first driving device25. The first driven gear23may be located in the placing recess273and connected to the reflective medium22. The first driving device25can be configured to drive the movement of the reflective medium22through the engagement of the first driving gear26and the first driven gear23, so as to create a lighting effect similar to dynamic water ripple.

Typically, a periphery of the placing recess273may be provided with a surrounding wall274. The surrounding wall274is capable of preventing displacement of the first driven gear23while preventing other substances from affecting the operation of the first driven gear23.

A center of the placing recess273can be provided with a fixing column275. A bottom of the reflective medium22can be provided with a second through-hole221. The fixing column275may pass through the second through-hole221into the reflective medium22. The height of the fixing column275can be higher than the height of the placing recess273and the height of the second through-hole221. The at least one first incoherent light source21may be connected to the fixing column275. The at least one first incoherent light source21may be fixed by the fixing column275passing through the second through-hole221. The at least one first incoherent light source21can be arranged in the reflective medium22with a location near the center of the reflective medium22, so that the reflective medium22can reflect the light emitted from the first incoherent light source21evenly. The light emitted from the at least one first incoherent light source21can be transmitted to the reflective medium22for reflection, and finally emitted after refracted by the first condenser lens24, which can effectively increase the irradiation range of the light. Meanwhile, the height of the fixing column275is higher than those of the placing recess273and the second through-hole271, thus the reflective medium22will not rub with the at least one first incoherent light source21when rotating.

The first incoherent light source21can be configured to emit light. The first incoherent light source21may be an LED light source, a super luminescent light emitting diode or a broadband light source, without limitation herein. A quantity of the first incoherent light source21can be one or more to enhance the luminous intensity of the projection device. The first incoherent light source21may each include a lamp board211and at least one lamp bead212arranged on the lamp board211. A luminous surface of each lamp bead212is arranged toward the reflective medium22.

The reflective medium22can be configured to reflect light from the first incoherent light source2. An inner surface of the reflective medium22may consist of a plurality of irregular reflective surfaces connected to each other. A quantity of the reflective surfaces may be 12 or more. Typically, the inner surface of the reflective medium22may be hemispherical, thus light reflected from the reflective medium22can have the lighting effect similar to dynamic water ripple. The reflective medium22may also be trapezoidal or elliptical, etc. . . . The first driven gear23can be integrally formed with the reflective medium22and arranged at a bottom center of the reflective medium22, i.e., under the fixing column275.

Typically, an upper end of the fixing column275may be provided with a limit protrusion276. The lamp board211may be opened with an assembly hole adapted to the limit protrusion276. The lamp board211may be fixed on the fixing column275through the assembly hole and the limit protrusion276. The lamp board211may be locked by at least one screw. The matching of the limit protrusion276and the assembly hole can facilitate the fixing of the light board211, and then the light board211can be fixed to the fixing column275with the at least one screw. In other embodiments, the corresponding limit protrusion276can be omitted, and the fixing column275can be directly locked to the light board211by the at least one screw.

The first light-emitting assembly20can be configured to use the light emitted from the lamp bead212and reflected by the reflective medium22and then refracted out by the first condenser lens24, while the reflective medium22can be rotated under the action of the first driving device25to achieve the effect of movable water ripple which can greatly improve the projection interest. The corresponding first incoherent light source21not rotating and the setting of the mount27can ensure that the entire first light-emitting assembly20is compact and not loose, which can ensure the life of the projection device.

The projection device for ambient decoration may further include a control assembly40electrically connected to the first light-emitting assembly20. The control assembly40can be configured to control open and close of the first light-emitting assembly20and provide electric power for the first light-emitting assembly20.

Second Embodiment

Referring toFIG.6, the projection device for ambient decoration according to the present embodiment may further include a laser assembly30in addition to the first light-emitting assembly20. The laser assembly30can be electrically connected to the control assembly40and configured to create bright spots to form a star-like effect. Typically, the laser assembly30may include at least one coherent light source31and at least one diffraction medium32. The at least one diffraction medium32may be arranged above the at least one coherent light source31. The at least one coherent light source31may irradiate towards the at least one diffraction medium32. According to the present embodiment, the laser assembly30can be another light-emitting device in the projection device for ambient decoration and typically arranged on one side of the first light-emitting assembly20. A heat sink33can be provided on the outside of the at least one coherent light source31for heat dissipation of the laser assembly30. A light output hole52can be provided on an upper cavity101according to the location of the laser assembly30. The diffraction medium32can be configured to diffract the light emitted from the coherent light source31to form a diffracted beam, so as to present another lighting effect of the projection device.

Referring toFIG.7, the laser asassembly30can be moveable in one scenario. The projection device for ambient decoration may further include a second driving assembly34configured to drive a movement of the laser assembly30. Typically, the diffraction medium32of the laser assembly30may be directly connected to a drive shaft of the second driving assembly34. Alternatively, the projection device may further comprise a second driving gear35connected to the second driving assembly34and a second driven gear36connected to the at least one diffraction medium32. The second driving assembly34may be configured to drive the at least one diffraction medium32based on cooperation of the second driving gear35and the second driven gear36.

Third Embodiment

Referring toFIG.7, the third embodiment of the present disclosure is a further extension of the second embodiment. Compared to the second embodiment, the projection device for ambient decoration according to the present embodiment may further include a second light-emitting assembly60electrically connected to the control assembly40.

Typically, the second light-emitting assembly60can include at least one second incoherent light source41, a projection base42, a second condenser lens43, a film sheet44and a film sheet pad45. The second condenser lens43, the film sheet44and the film sheet pad45may be arranged in the projection base42. The projection base42may be provided with a third through-hole. The at least one second incoherent light source41may pass through the third through-hole. The second condenser lens43may be arranged above the at least one second incoherent light source41. The film sheet44may be arranged above the second condenser lens43by the film sheet pad45.

According to the present embodiment, the second light-emitting assembly60can be another light-emitting device in the projection device for ambient decoration having a lighting mode different from the first light-emitting assembly20and the laser assembly30. The second light-emitting assembly60can be configured to project the picture of the film sheet44by the second condenser lens43, and different projection effects can be presented by changing the pattern of the film sheet44.

Fourth Embodiment

Referring toFIGS.9and10, the fourth embodiment of the present disclosure is a further extension of the first embodiment, whereinFIG.9is a schematic view of a projection device for ambient decoration according to a fourth embodiment of the present disclosure andFIG.10is a partial schematic view ofFIG.9omitting shells.

Typically, the projection device according to the present embodiment may further include an audio assembly50. The first light-emitting assembly20can be configured to present a lighting effect similar to dynamic water ripple. The first light-emitting assembly20and the audio assembly50can be respectively provided in two cavities which are capable of rotating relative to each other. The first light-emitting assembly20and the audio assembly50may be respectively electrically connected to the control assembly40and work based on the control of the control assembly40.

Specifically, the principle and structure of the first light-emitting assembly20according to the present embodiment can be the same as the first embodiment of the present disclosure and will not be repeated.

Typically, the projection device may further comprise an upper cavity101and a lower cavity102. The upper cavity101and the lower cavity102can be enclosed by different shells respectively. The first light-emitting assembly20may be arranged in the upper cavity101. The audio assembly50may be arranged in the lower cavity102. The control assembly40may be arranged outside of the lower cavity102. The upper cavity101may be provided with a light-transmitting hole for the first condenser lens24to pass through. At least part of the first condenser lens24can pass through the light-transmitting hole to ensure that the refracted light can be projected out.

Typically, the first light-emitting assembly20may further comprise a fixing ring104. The fixing ring104can be configured to press the first condenser lens24onto the mount27, so that the first condenser lens24can be fixed relative to the reflective medium22and a fixing for the first condenser lens24can be formed. Meanwhile, an exterior of the upper cavity101corresponding to a location of the first condenser lens24may be provided with a light-transmitting protective cover53. The light-transmitting protective cover53can be configured to protect the first condenser lens24to prevent direct contact with the first condenser lens24during use and affecting the projection effect.

According to the present embodiment, the upper cavity101and the lower cavity102are capable of rotating relative to each other. An end of the lower cavity102connecting the upper cavity101can be provided with a housing slot for the upper cavity101, so that the two cavities can be aesthetically pleasing and easily rotated.

Typically, the upper cavity101may be connected to the lower cavity102by a magnetic adsorption. A bottom of the upper cavity101may be provided with a long iron piece105. Atop of the lower cavity102may be provided with at least one magnet. The upper cavity101may be adapted to cling to the lower cavity102by the magnetic adsorption when the bottom of the upper cavity101is close to the top of the lower cavity102. Alternatively, corresponding iron piece arranged in the lower cavity102and at least one magnet arranged in the upper cavity101can be magnetic adsorbed to each other.

In other embodiments, the relative rotating of the upper cavity101and the lower cavity102can be realized by a snap connection, or a pivot shaft, etc., which can achieve a relative rotation connection between the upper cavity101and the lower cavity102.

Typically, the projection device may further comprise a third cavity103. The control assembly40may be arranged in the third cavity103. The control assembly40may comprise a control circuit board and a button assembly, wherein the control assembly40can be connected to the first light-emitting assembly20and the audio assembly50respectively through conductive wires. The audio assembly50may include a speaker. An audio control module may be arranged on the control circuit board. The speaker may be electrically connected to the audio control module. The speaker can be provided in the lower cavity102typically with an opening facing the bottom, and at least one sound-permeable hole can be opened at the bottom of the lower cavity102, so that the projection device can have an aesthetic appearance.

The first light-emitting assembly20, the audio assembly50and the control assembly40can be placed respectively utilizing the upper cavity101, the lower cavity102and the third cavity103which are separately arranged. The corresponding cavity can be adjusted individually in subsequent maintenance. Meanwhile, the two cavities capable of rotating relatively to each other can realize the projection angle adjustment of the first light-emitting assembly20to increase the interest of the projection device.

Typically, the projection device can be in a shape of a dog in a sitting position. The upper cavity of the projection device may be in a shape of the dog's head, the lower cavity may be in a shape of the dog's body, and the third cavity103may be in a shape of a backpack. Projection angle adjustment can be achieved by magnetic connection between the upper cavity101and the lower cavity102.

The projection device according to the present embodiment may further include a laser assembly30. The principle and structure of the laser assembly30can be the same as the second embodiment of the present disclosure and will not be repeated.

According to the present embodiment, the laser assembly30can be another light-emitting device in the projection device and typically arranged on one side of the first light-emitting assembly20. The light exit hole can be provided on the upper cavity101correspondingly. The diffraction medium32can be arranged in the light exit hole and configured to diffract the light emitted from the coherent light source31to form a diffracted beam, so as to present another lighting effect of the projection device.

Typically, the laser assembly30can be arranged above the upper cavity101, e.g., in a cap-shaped housing, under the circumstance that the projection device is in the shape of the dog in the sitting position.

In other embodiments of the present disclosure, the projection device can be in a shape of a kitten, wherein the first light-emitting assembly20can be arranged on the head of the kitten, the laser assembly30can be synchronously arranged on the head of the kitten or on the nose of the kitten, etc., all of which should be within the protection scope of the present disclosure.

Fifth Embodiment

The difference between the present embodiment and the fourth embodiment is that the first light-emitting assembly20, the audio assembly50and the control assembly40may be arranged in a cavity formed by the same shell, which can be an exterior shell of the projection device and configured to provide mounting positions for and protect other parts of the projection device. The overall shape of the shell can be spherical or saucer-shaped, etc. without specific limitations.

For one skilled in the art, it is clear that the present disclosure is not limited to the details of the above exemplary embodiments, and that the present disclosure can be implemented in other specific forms without deviating from the spirit or basic characteristics of the application. Therefore, at any point, the embodiments should be regarded as exemplary and unrestrictive, and the scope of the present application is defined by the appended claims, rather than the above description. Therefore, all changes within the meaning and scope of the equivalent elements of the claim or directly/indirectly utilization in other related technical fields are intended to be included in protection scope of the present disclosure. Any appended label recited in the claims shall not be regarded as a limitation to the claims.