Induction projection device and electric appliance
By combining the projection component and the light sensing component of the induction projection device, non-contact control of electrical appliances is realized, solving the problem of ordinary operation experience of existing electrical appliances and improving the convenience of operation and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONG SHAN SK-OPTECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-07
AI Technical Summary
The control devices of existing electrical appliances lack a sense of technology, the operating experience is ordinary, and they cannot provide contactless control.
The system employs an inductive projection device, which outputs projected light through a projection component to form a pattern. A light-sensing component detects changes in the light to generate a detection signal, thereby enabling non-contact control.
It enhances the ease of operation and user experience of electrical appliances, and can enhance the environment, providing a technologically advanced control method.
Smart Images
Figure CN224472004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of functional display accessories technology, and in particular to a sensor projection device and electrical equipment. Background Technology
[0002] The control devices on existing electrical appliances typically consist of a display screen and buttons. The operating information of the appliance is displayed on the screen, while the user needs to input control commands through the buttons. The overall design is relatively simple and does not provide the technological feel that modern users need, resulting in a rather ordinary user experience. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sensor projection device and electrical equipment that is easy to operate and can render the environment, enhancing the user experience.
[0004] According to a first aspect of the present invention, a sensing projection device includes: a housing having at least one light outlet; at least one projection component disposed within the housing, the projection component being capable of outputting projection light through the light outlet to form a projection pattern; and at least one light sensing component disposed within the housing, the light sensing component detecting changes in light within a detection area through the light outlet to form a detection signal, the detection area of the light sensing component at least partially overlapping the area where the projection pattern is located, and the light sensing component being connected to a control module.
[0005] A sensing projection device according to an embodiment of the present utility model has at least the following beneficial effects:
[0006] This utility model relates to a sensor projection device that can be mounted on electrical appliances. The projection component outputs projection light, which is emitted from the light outlet and forms a projection pattern on the ground or wall. The projection pattern can be used to indicate time, operation prompts, and the operating status of the electrical appliance. The detection area of the light sensing component can at least partially overlap with the area where the projection pattern is located. When the user needs to control the electrical appliance, the user can extend their hand, foot, or other body parts to the overlapping area according to the prompts of the projection pattern, causing a change in the light in that area. The light sensing component can then detect the change in light and generate a detection signal, which is then transmitted back to the control module of the electrical appliance. The control module then controls the electrical appliance accordingly. This design adopts non-contact control, which is convenient to operate and can render the environment, enhancing the user experience.
[0007] According to some embodiments of the present invention, there are multiple light-emitting ports, and the multiple light-emitting ports include at least a first light-emitting port and a second light-emitting port that are separated from each other. The projection component outputs projection light through the first light-emitting port to form a projection pattern, and the optical sensing component detects changes in light within the detection area through the second light-emitting port to form a detection signal.
[0008] According to some embodiments of the present invention, at least one of the light-emitting ports includes a first light-emitting port, at least one projection component includes at least a first projection component, a beam splitter is disposed inside the housing, the beam splitter includes a reflective surface and an incident surface, the reflective surface of the beam splitter faces the light sensing component and the first light-emitting port respectively, and the incident surface of the beam splitter faces the projection component, wherein the projected light can pass through the beam splitter and be output from the first light-emitting port, and the detection light entering the first light-emitting port can be captured by the light sensing component after being reflected by the reflective surface of the beam splitter.
[0009] According to some embodiments of the present invention, a condensing lens is further provided between the first light outlet and the reflective surface of the beam splitter in the housing, and the first projection component is located at the focal point of the condensing lens.
[0010] According to some embodiments of the present invention, the outgoing light path of the emitted light of the first projection component and the detection light path of the detection light of the photosensitive component are coaxially arranged so that the detection area of the photosensitive component overlaps with the area where the first projection pattern of the first projection component is located.
[0011] According to some embodiments of the present invention, at least one of the light-emitting ports includes a second light-emitting port, and at least one projection component includes at least a second projection component. The second projection component outputs projection light through the second light-emitting port to form a second projection pattern. The detection area of the light-sensing component overlaps with the area where the first projection pattern of the first projection component is located, and the detection area of the light-sensing component does not overlap with the area where the second projection pattern is located.
[0012] According to some embodiments of the present invention, the optical sensing component includes a laser detection probe, an optical ranging sensor, or an illumination intensity sensor.
[0013] An electrical device according to a second aspect of the present invention includes a device body and a sensing projection device disclosed in any of the above embodiments, wherein the housing is disposed on the device body and the light sensing component is connected to the control module of the device body.
[0014] The electrical equipment according to the embodiments of this utility model has at least the following beneficial effects:
[0015] This utility model electrical device utilizes the inductive projection device disclosed in any of the above embodiments, which is easy to operate and can render the environment, enhancing the user experience.
[0016] According to some embodiments of this utility model, the light outlet is arranged facing downwards; or, the device body is provided with a projection screen in front of the light outlet.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the working state of one embodiment of the inductive projection device of this utility model;
[0020] Figure 2 This is a schematic diagram of the working state of another embodiment of the inductive projection device of this utility model;
[0021] Figure 3 This is a schematic diagram of the optical path structure of one embodiment of the inductive projection device of this utility model.
[0022] Figure label:
[0023] Housing 100; First light outlet 110; Second light outlet 120; Third light outlet 130; Projection assembly 200; Light source 210; Display control chip 220; Light sensing assembly 300; Beam splitter 400; Condenser lens 500. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] like Figures 1 to 3 As shown, a sensing projection device according to a first aspect embodiment of the present invention includes a housing 100, at least one projection component 200, and at least one light sensing component 300. The housing 100 is provided with at least one light outlet. The projection component 200 is disposed within the housing 100 and is capable of outputting projection light through the light outlet to form a projection pattern. The light sensing component 300 is disposed within the housing 100 and is capable of detecting changes in light within a detection area through the light outlet to form a detection signal. The detection area of the light sensing component 300 at least partially overlaps with the area where the projection pattern is located. The light sensing component 300 is used to connect to a control module.
[0029] The housing 100 is made of a non-transparent material, thereby forming a dark chamber inside the housing 100 that facilitates the transmission of projection light and detection light. The projection component 200 typically includes a light source 210 and a display control chip 220 arranged in sequence. The projection light emitted by the light source 210 passes through the display control chip 220 and is emitted from the light outlet. The light source 210 can be an LED lamp bead, and the display control chip 220 can be an LCOS projection chip or an LCD chip. The light emitted by the LED lamp bead is processed by the display control chip 220 to form an image, and then emitted from the light outlet to form a light spot pattern on the ground.
[0030] In some embodiments of this utility model, the optical sensing component 300 includes a laser detection probe, an optical ranging sensor, or a light intensity sensor.
[0031] The laser detection probe emits laser light, which is emitted from the light outlet and reflected on a plane (such as the ground) in front of the light outlet before returning to the light outlet. It is then received by the laser detection probe. The transmission time of this process can be analyzed by the laser detection probe to determine the transmission distance of the laser light. Alternatively, since the attenuation of the light is related to the transmission distance, the length of the transmission distance can also be determined based on the degree of attenuation of the received laser light. When the user places their hand in front of the light outlet, the laser light is reflected by the user's hand and returns to the laser detection probe, shortening the transmission distance and forming a detection signal that is fed back to the control module.
[0032] An optical ranging sensor may include a light emitter and a light receiver. The light emitter emits light through a light outlet, while the light receiver is located in the area where the projected pattern is located. When a hand is placed in front of the light outlet, blocking the light emitted by the light emitter, the light receiver cannot receive the light and thus forms a detection signal that is fed back to the control module.
[0033] The light intensity sensor can directly obtain the intensity of external light through the light outlet. When the light intensity dims at a certain moment and the rate of change reaches the change threshold, it is determined that the hand or other objects are in front of the light outlet, and a detection signal is generated and fed back to the control module.
[0034] This utility model relates to a sensor projection device that can be mounted on electrical equipment. The projection component 200 can output projection light, which is output from the light outlet and forms a projection pattern on the ground or wall. The projection pattern can be used to indicate time, operation prompts, and the operating status of electrical equipment. The detection area of the light sensing component 300 can at least partially overlap with the area where the projection pattern is located. When the user needs to control the electrical equipment, the user can extend their hand, foot, or other body parts to the overlapping area according to the prompts of the projection pattern, causing a change in the light in that area. The light sensing component 300 can detect the change in light and generate a detection signal, which is then transmitted back to the control module of the electrical equipment. The control module then controls the electrical equipment accordingly. This design adopts non-contact control, which is convenient to operate and can render the environment, improving the user experience.
[0035] In some embodiments of this utility model, such as Figure 1 As shown, there are multiple light-emitting ports, including at least a first light-emitting port 110 and a second light-emitting port 120 that are separated from each other. The projection component 200 outputs projection light through the first light-emitting port 110 to form a projection pattern, and the light-sensing component 300 detects changes in light within the detection area through the second light-emitting port 120 to form a detection signal.
[0036] The projection component 200 and the light sensing component 300 each correspond to different light output ports. The projection component 200 outputs projection light through the first light output port 110 to form a projection pattern. It can be understood that the projection component 200 projects wide-angle light, thus forming a projection pattern with a certain width, for example... Figure 1 As shown, the projected pattern can indicate time, start-up, door opening, etc., and the housing 100 can be provided with a second light outlet 120. The second light outlet 120 is directly opposite the start-up pattern, and the optical sensing component 300 forms a detection area in the area where the start-up pattern is located through the second light outlet 120.
[0037] In some embodiments of this utility model, the housing 100 may also be provided with a third light outlet 130, and may also be provided with a light sensing component 300 that forms another detection area through the third light outlet 130.
[0038] In some embodiments of this utility model, such as Figure 2As shown, at least one of the light-emitting ports includes a first light-emitting port 110, and at least one projection component 200 includes at least a first projection component 200. A beam splitter 400 is disposed inside the housing 100. The beam splitter 400 includes a reflective surface and an incident surface. The reflective surface of the beam splitter 400 faces the optical sensing component 300 and the first light-emitting port 110, respectively, and the incident surface of the beam splitter 400 faces the projection component 200. The projected light can pass through the beam splitter 400 and be output from the first light-emitting port 110. The detection light entering the first light-emitting port 110 can be captured by the optical sensing component 300 after being reflected by the reflective surface of the beam splitter 400.
[0039] The beam splitter 400 can be selected from conventional semi-transparent semi-reflective lenses. The projected light can pass through the beam splitter 400 and be output from the first light outlet 110 to form a projection pattern. The detection light entering from the first light outlet 110 can be reflected by the reflective surface of the beam splitter 400 and then captured by the optical sensing component 300, so that the detection area of the optical sensing component 300 and the area where the first projection pattern of the first projection component 200 is located at least partially overlap.
[0040] In some embodiments of this utility model, at least one of the light-emitting ports includes a second light-emitting port 120, and at least one projection component 200 includes at least a second projection component 200. The second projection component 200 outputs projection light through the second light-emitting port 120 to form a second projection pattern. The detection area of the light sensing component 300 overlaps with the area where the first projection pattern of the first projection component 200 is located, but the detection area of the light sensing component 300 does not overlap with the area where the second projection pattern is located.
[0041] For example, such as Figure 2 As shown, the second projection component 200 forms a projection pattern indicating the time. Since this position does not require user operation to generate a detection signal, there is no need to set up a beam splitter 400 and a light sensor component 300 to cooperate with the second projection component 200. The first projection component 200 forms projection patterns such as start-up, door opening, and door closing. The first projection component 200 is set up in conjunction with the light sensor component 300 and the beam splitter 400. When the user places his hand on the projection pattern formed by the first projection component 200, the light sensor component 300 generates a detection signal.
[0042] In some embodiments of this utility model, such as Figure 3As shown, the housing 100 is further provided with a condenser lens 500 between the first light outlet 110 and the reflective surface of the beam splitter 400. The first projection component 200 is located at the focal point of the condenser lens 500. The condenser lens 500 can process the light output by the first projection component 200 into parallel light, thereby optimizing the projection effect of the projected pattern. After the beam splitter 400 splits the light, there are two focal points on the same side of the condenser lens 500. The light sensing component 300 can be located at the other focal point, so that the detection area is as close as possible to the location of the projected pattern, improving the trigger accuracy when the user is close to the projected pattern.
[0043] In some embodiments of this utility model, the outgoing light path of the emitted light of the first projection component 200 and the detection light path of the detection light of the optical sensing component 300 are coaxially arranged so that the detection area of the optical sensing component 300 overlaps with the area where the first projection pattern of the first projection component 200 is located, so that the detection area is as close as possible to the location of the projection pattern, thereby improving the triggering accuracy when the user is close to the projection pattern.
[0044] An electrical device according to a second aspect of the present invention includes a device body and a sensing projection device disclosed in any of the above embodiments, wherein the housing 100 is disposed on the device body, and the light sensing component 300 is connected to the control module of the device body.
[0045] Electrical appliances can be ovens, microwave ovens, stoves, range hoods, etc. Taking an oven as an example, the projection component 200 can project a projection pattern to show the baking time, as well as projection patterns such as opening and closing the door. In the area where the projection patterns such as opening and closing the door are displayed, a detection area can be formed by the light sensing component 300.
[0046] This utility model electrical device utilizes the inductive projection device disclosed in any of the above embodiments, which is easy to operate and can render the environment, enhancing the user experience.
[0047] In some embodiments of this utility model, the light outlet is arranged facing downwards, thereby forming a projection pattern on the bottom surface; or, the device body is provided with a projection screen in front of the light outlet, which can form a projection pattern on the projection screen.
[0048] 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.
[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A sensor projection device, characterized in that, include: The housing is provided with at least one light outlet; At least one projection component is disposed within the housing, and the projection component is capable of outputting projection light through the light outlet to form a projection pattern; At least one optical sensing component is disposed within the housing. The optical sensing component detects changes in light within a detection area through the light outlet to form a detection signal. The detection area of the optical sensing component at least partially overlaps with the area where the projected pattern is located. The optical sensing component is used to connect to a control module.
2. The inductive projection device according to claim 1, characterized in that: The light-emitting port has multiple light-emitting ports, including at least a first light-emitting port and a second light-emitting port that are separated from each other. The projection component outputs projection light through the first light-emitting port to form a projection pattern, and the optical sensing component detects changes in light within the detection area through the second light-emitting port to form a detection signal.
3. The inductive projection device according to claim 1, characterized in that: At least one of the light-emitting ports includes a first light-emitting port, and at least one projection component includes at least a first projection component. A beam splitter is disposed inside the housing. The beam splitter includes a reflective surface and an incident surface. The reflective surface of the beam splitter faces the optical sensing component and the first light-emitting port, respectively, and the incident surface of the beam splitter faces the projection component. Projected light can pass through the beam splitter and be output from the first light-emitting port. Detection light entering through the first light-emitting port can be captured by the optical sensing component after being reflected by the reflective surface of the beam splitter.
4. The inductive projection device according to claim 3, characterized in that: The housing is further provided with a condensing lens between the first light outlet and the reflective surface of the beam splitter, and the first projection component is located at the focal point of the condensing lens.
5. The inductive projection device according to claim 3, characterized in that: The outgoing light path of the first projection component and the detection light path of the photosensitive component are coaxially arranged so that the detection area of the photosensitive component overlaps with the area where the first projection pattern of the first projection component is located.
6. The inductive projection device according to claim 3, characterized in that: At least one of the light-emitting ports includes a second light-emitting port, and at least one projection component includes at least a second projection component. The second projection component outputs projection light through the second light-emitting port to form a second projection pattern. The detection area of the light-sensing component overlaps with the area where the first projection pattern of the first projection component is located, but the detection area of the light-sensing component does not overlap with the area where the second projection pattern is located.
7. The inductive projection device according to claim 1, characterized in that: The optical sensing component includes a laser detection probe, an optical ranging sensor, or a light intensity sensor.
8. An electrical appliance, characterized in that, The device includes a main body and a sensing projection device as described in any one of claims 1 to 7, wherein the housing is disposed on the main body and the light sensing component is connected to the control module of the main body.
9. An electrical appliance according to claim 8, characterized in that: The light outlet is oriented downwards; alternatively, the device body has a projection screen positioned in front of the light outlet.