A night light projector

Abstract

The utility model belongs to domestic projector technical field discloses a night lamp projector, including projector main part and base, projector main part is installed above base, is provided with main control module and projection subassembly in projector main part, is provided with night lamp subassembly in base, night lamp subassembly emits light face upward, base front is provided with night lamp switch, night lamp switch is connected with main control module electricity, main control module receives the signal of night lamp switch, according to preset rule control night lamp subassembly and projection subassembly. The utility model discloses night lamp projector through setting up night lamp subassembly and projection subassembly respectively in below base and above main body, avoids the influence of projection subassembly's arrangement and work when providing additional night lamp function. And main control module is connected and controls projection subassembly and night lamp subassembly respectively, has reduced control cost while can flexible control projection subassembly and night lamp subassembly.

Description

Technical Field

[0001] This utility model belongs to the field of home projector technology, specifically relating to a night light projector. Background Technology

[0002] A home projector is a display device that uses optical magnification to project images or videos onto a screen or wall. Its core mechanism involves a light source illuminating an imaging element, which is then focused and magnified by a lens assembly to form a high-definition image. Modern home projectors generally support digital calibration, wireless projection, and smart systems, and combine high brightness, color reproduction, and portability to provide users with an immersive large-screen audiovisual experience.

[0003] Traditional home projectors have limited functionality, serving only as audio-visual playback devices and failing to meet diverse user needs. To improve user experience, some existing technologies combine projectors with lighting equipment, integrating projection and lighting functions into a single device. While these devices have a simple structure, projection and lighting are controlled manually, making operation somewhat inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the inconvenience of operation of existing projectors with lighting functions, thereby providing a night light projector.

[0005] A night light projector includes a projector body and a base, with the projector body mounted on top of the base. A main control module and a projection component are disposed within the projector body, and the main control module is electrically connected to the projection component. A night light component is disposed within the base, with its luminous surface facing upwards. The main control module is electrically connected to the night light component. A night light switch is disposed on the front of the base, and the night light switch is electrically connected to the main control module. The main control module receives signals from the night light switch and controls the night light component and the projection component according to preset rules.

[0006] Furthermore, the night light assembly includes an LED driving circuit and LED beads, wherein the LED driving circuit drives the LED beads to emit light, and the emitting surface of the LED beads faces upward.

[0007] Furthermore, it also includes a diffuser plate, which is fixed to the upper side of the base and located above the LED beads.

[0008] Furthermore, it also includes an ambient light detection module, which is connected to the main control module and is used to detect ambient light data.

[0009] Furthermore, it also includes a bracket, of which two brackets are provided and fixed to the upper side of the base, respectively vertically arranged on the left and right sides of the base, and the projector body is rotatably mounted between the two brackets.

[0010] Furthermore, the night light assembly passes through the bracket and is electrically connected to the main control module, and the night light switch passes through the bracket and is electrically connected to the main control module.

[0011] Furthermore, the projection component includes an optical engine, a lens, and a camera. The optical engine is fixed inside the projector body, and the lens and the camera are fixed to the front of the projector. The lens is located in front of the optical engine. The lens and the optical engine are respectively connected to the main control module.

[0012] Furthermore, it also includes a heat dissipation component, which includes a heat sink and a cooling fan. The heat sink and the cooling fan are fixed inside the projector body and are used to dissipate heat for the projection component and the main control module.

[0013] Furthermore, it also includes a power module, which is fixed inside the projector body and connected to an external power source; the power module is electrically connected to the main control module and the night light assembly respectively, and is used to power the night light projector.

[0014] Furthermore, the night light switch is a touch switch.

[0015] Beneficial Effects: This utility model discloses a night light projector, including a projector body and a base. The projector body is mounted on top of the base. A main control module and a projection component are housed within the projector body. A night light component is housed within the base, with its emitting surface facing upwards. A night light switch is located on the front of the base and is electrically connected to the main control module. The main control module receives signals from the night light switch and controls the night light component and projection component according to preset rules. This utility model's night light projector, by separately placing the night light component and projection component within the lower base and upper body, avoids affecting the arrangement and operation of the projection component while providing additional night light functionality. Furthermore, by connecting and controlling the projection component and night light component separately with the main control module, control costs are reduced while allowing for flexible control of both components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic block diagram of the main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3This is a schematic diagram of the base structure of this utility model; Figure 4 This is a schematic diagram of another base structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Projector body; 11. Main control module; 12. Projection component; 13. Heat dissipation component; 14. Power module; 2. Base; 21. LED driver circuit; 22. LED beads; 23. Diffuser plate; 24. Touch switch; 3. Stand. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Example 1: Reference Figures 1-4 As shown, this embodiment provides a night light projector, including a projector body and a base. A bracket is fixed to the upper side of the base, and the projector body is mounted on the bracket. A main control module and a projection component are disposed within the projector body. The main control module is connected to and controls the projection component. An LED driving circuit and multiple LED beads are disposed within the base. The LED driving circuit drives the LED beads to emit light, with the emitting surface of the LED beads facing upwards. A diffuser plate is disposed on the upper side of the base, positioned above the LED beads. The LED driving circuit is electrically connected to the main control module. A night light switch is disposed on the front of the base, and the night light switch is electrically connected to the main control module for controlling the LED beads.

[0024] The main control module includes a projection driver module, which connects to and controls the light source and optical engine, and is used to control the projection light source switch, brightness adjustment, optical engine working mode, signal source switching, etc.

[0025] Specifically, the LED beads include multiple independently / grouped high color rendering index LED beads, and the LED driver circuit can flexibly control the switching and brightness of the LED beads. A diffuser plate covers the top of all the LED beads to ensure uniform and soft light. The LED beads are positioned within a specific area so that their light emission avoids the projection light path and prevents interference with the projection components. The LED driver circuit can precisely control the switching state, brightness level (PWM dimming), and color temperature of the LED beads according to instructions to achieve various night light modes (such as: constant light, breathing, and small night light modes). The main control module outputs two pulse width modulation signals to the LED driver circuit, which adjusts the switching, brightness, and color temperature of each LED bead in a constant current manner.

[0026] As a further improvement to this embodiment, an ambient light detection module is also included. This module is connected to the main control module and is used to detect ambient light data. The ambient light detection module includes an ambient light sensor and transmits ambient light data to the main control module via I²C communication. The main control module adjusts the night light component and the projection component based on the ambient light data. Specifically, two brackets are provided, vertically positioned on the left and right sides of the base respectively. The projector body is rotatably mounted between the two brackets. The brackets are hollow, with the main control module and power supply of the projector body connected to the night light switch and LED driver circuit located inside the base via cables passing through the brackets. Positioning grooves are provided on the inner upper part of each of the two brackets, with blind holes within the grooves. Positioning seats matching the positioning grooves are provided on the left and right sides of the projector body, with rotating shafts matching the blind holes on the positioning seats. This allows the projector body to be mounted between the two brackets and to rotate.

[0027] The LED driver circuit passes through the bracket and is electrically connected to the main control module, and the night light switch passes through the bracket and is electrically connected to the main control module.

[0028] The projection assembly includes an optical engine, a lens, and a camera. The optical engine is fixed inside the projector body, and the lens and camera are fixed to the front of the projector. The lens is located in front of the optical engine. The lens and the optical engine are respectively connected to the main control module.

[0029] It also includes a heat dissipation component, which comprises a heat sink and a cooling fan. The heat sink and the cooling fan are fixed inside the projector body and are used to dissipate heat for the projection component and the main control module, ensuring stable operation of the night light projector over long periods of time. The heat sink consists of heat dissipation fins, one end of which is attached to the heat-generating component.

[0030] In this embodiment, a power module is also included. The power module is fixed inside the projector body and connected to an external power source. The power module is electrically connected to the main control module and the LED driver circuit, respectively, and is used to power the night light projector. The power module is connected to a mains frequency power input and provides 12V DC power to power each module of the night light projector.

[0031] In a preferred embodiment, the night light switch is a touch switch, specifically a capacitive touch-sensitive switch, which avoids moving the projector and interfering with the projection operation when the switch is touched. The main control module is equipped with a touch signal processing unit for processing touch signals and is connected to the conductive layer of the touch-sensitive switch via I²C communication. The main control module recognizes single-click, double-click, and long-press operations of the touch signal and generates corresponding control command events (such as: turning the projection on / off, turning the night light on / off, switching the night light mode / brightness, and entering the linkage mode) according to preset operation logic, thereby controlling the LED driving circuit to drive the LED beads to work.

[0032] In this embodiment, the main control module also includes a linkage control unit. The linkage control unit monitors the projection status, obtains the status of the projection control module in real time (power on, power off, standby, playing, no signal), and controls the night light based on preset rules.

[0033] As a preferred embodiment, the following linkage rules are included: Rule 1: (Power off / Standby -> Night light on): When the projector is detected to switch from power on / playback mode to power off or standby mode, a command is automatically sent to the night light control module to turn on the night light with the preset brightness / mode.

[0034] Rule 2: (Power on -> Night Light off): When the projector is detected to be powered on, a command is automatically sent to the night light control module to turn off the night light, ensuring that the projected image is not disturbed.

[0035] The main control module and the LED driver circuit are connected via an FPC cable.

[0036] The LED driving circuit and the LED beads are mounted on a circuit board, which is then fixed to the base with screws. Specifically, the circuit board is initially fixed by clips and positioning ribs on the inner wall of the base, and is then locked to the bottom of the base at each of the four corners by four screws.

[0037] The night light projector provided in this embodiment places the night light component and the projection component separately within the lower base and the upper main body, respectively, thus avoiding interference with the arrangement and operation of the projection component while providing additional night light functionality. Furthermore, by connecting and controlling the projection component and the night light component separately with the main control module, control costs are reduced while allowing for flexible control of both components.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A night light projector, characterized in that, The system includes a projector body and a base, with the projector body mounted on top of the base. The projector body houses a main control module and a projection component, with the main control module electrically connected to the projection component. The base houses a night light component with its emitting surface facing upwards. The main control module is electrically connected to the night light component. A night light switch is located on the front of the base and is electrically connected to the main control module. The main control module receives signals from the night light switch and controls the night light component and the projection component according to preset rules.

2. A night light projector according to claim 1, characterized in that, The night light assembly includes an LED driving circuit and LED beads. The LED driving circuit drives the LED beads to emit light, and the emitting surface of the LED beads faces upward.

3. A night light projector according to claim 2, characterized in that, It also includes a diffuser plate, which is fixed to the upper side of the base and located above the LED beads.

4. A night light projector according to claim 1, characterized in that, It also includes an ambient light detection module, which is connected to the main control module and is used to detect ambient light data.

5. A night light projector according to claim 1, characterized in that, It also includes two brackets, which are fixed to the upper side of the base and are respectively vertically arranged on the left and right sides of the base. The projector body is rotatably mounted between the two brackets.

6. A night light projector according to claim 5, characterized in that, The night light assembly passes through the bracket and is electrically connected to the main control module, and the night light switch passes through the bracket and is electrically connected to the main control module.

7. A night light projector according to claim 1, characterized in that, The projection assembly includes an optical engine, a lens, and a camera. The optical engine is fixed inside the projector body, and the lens and camera are fixed to the front of the projector. The lens is located in front of the optical engine. The lens and the optical engine are respectively connected to the main control module.

8. A night light projector according to claim 1, characterized in that, It also includes a heat dissipation component, which includes a heat sink and a cooling fan. The heat sink and the cooling fan are fixed inside the projector body and are used to dissipate heat for the projection component and the main control module.

9. A night light projector according to claim 1, characterized in that, It also includes a power module, which is fixed inside the projector body and connected to an external power source; the power module is electrically connected to the main control module and the night light assembly respectively, and is used to power the night light projector.

10. A night light projector according to claim 1, characterized in that, The night light switch is a touch switch.

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