Indicating device and range hood

Abstract

The embodiment of the utility model discloses an indicating device and a range hood, the indicating device is applied to the range hood, the range hood comprises a range hood body, the indicating device comprises a light emitting module and a light transmitting cover, and the light emitting module is located in the range hood body and connected with the range hood body; the light emitting module is used for emitting light beams with different colors according to different working states of the range hood; the light-transmitting cover is located outside the range hood body and connected with the light-emitting module, and the light-transmitting cover is used for transmitting light beams. The indicating device can emit light beams with different colors according to different working states of the range hood, so that the working states of the range hood can be conveniently known in real time, and the user experience feeling is improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and particularly to an indicating device and a range hood. Background Art

[0002] A range hood is usually installed in the kitchen to suck the fume gas in the kitchen into the body and discharge it outdoors. However, due to the structure and installation position of the range hood, users cannot timely know the working state of the range hood, resulting in a poor experience. Utility Model Content

[0003] The embodiments of the present application provide an indicating device and a range hood, aiming to solve the problem that users cannot timely know the working state of the range hood, resulting in a poor experience.

[0004] In a first aspect, the embodiments of the present application provide an indicating device applied to a range hood. The range hood includes a range hood body, an optical emission module, and a light-transmitting cover. The optical emission module is located inside the range hood body and is connected to the range hood body. The optical emission module is configured to emit light beams of different colors according to different working states of the range hood. The light-transmitting cover is located outside the range hood body and is connected to the optical emission module. The light-transmitting cover is configured to transmit the light beams.

[0005] For the indicating device provided by the present application, the optical emission module can emit light beams of different colors based on different working states of the range hood. The light-transmitting cover located outside the range hood body transmits the light beams out of the range hood body to form indication information, enabling users to timely know the working state of the range hood based on the indication information and improving the user experience. Moreover, the optical emission module in the present application is located inside the range hood body, so that the light beams emitted by the optical emission module will converge inside the range hood body, avoiding the problem that some of the emitted light beams dissipate when the optical emission module is arranged outside the range hood body, thereby affecting the display effect of the light beams emitted by the optical emission module. That is, arranging the optical emission module inside the range hood body ensures the light emission reliability of the optical emission module, and thus ensures the indication reliability of the indicating device. At the same time, the optical emission module is fixed inside the range hood body, improving the connection stability of the light-transmitting cover connected to the optical emission module on the range hood body, avoiding the problem that the light-transmitting cover falls off due to external forces and affecting the indication effect. That is, it improves the firmness between the overall indicating device and the range hood body, and thus ensures the indication reliability of the indicating device.

[0006] In some exemplary embodiments, the optical emission module includes a housing and an optical emission component. The housing is fixed inside the range hood body, and a first installation cavity is formed inside the housing. The optical emission component is located inside the first installation cavity and is fixedly connected to the housing. The optical emission component is configured to emit light beams of different colors to the light-transmitting cover according to the working state of the range hood.

[0007] In the above technical solution, the light-emitting component is fixed in the range hood body via the housing, and the fixing area between the housing and the range hood body is relatively large, thereby improving the overall connection firmness of the light-emitting module in the range hood body. At the same time, the housing can protect the light-emitting component located in the first installation cavity, avoiding the problem of damage to the light-emitting component, so as to further improve the light-emitting reliability of the light-emitting component.

[0008] In some exemplary embodiments, the range hood further includes a control device for controlling and switching the working state of the range hood. The light-emitting component includes a first circuit board and a plurality of first light beads; the first circuit board is fixedly connected to the housing and electrically connected to the control device; the plurality of first light beads are arranged at intervals on one side of the first circuit board facing the light-transmitting cover; wherein, the first circuit board is configured to receive an electrical signal sent by the control device indicating the working state of the range hood, and control the plurality of first light beads to emit light according to the electrical signal to emit a corresponding color beam.

[0009] In some exemplary embodiments, the light-emitting component includes a second circuit board, a plurality of second light beads, and a detection component; the second circuit board is fixedly connected to the housing; the plurality of second light beads are arranged at intervals on one side of the second circuit board facing the light-transmitting cover; the detection component is arranged on the second circuit board, and the detection component is configured to detect the working state of the range hood and generate an electrical signal indicating the working state of the range hood; wherein, the second circuit board is configured to receive the electrical signal and control the plurality of second light beads to emit light to emit a corresponding color beam.

[0010] In the above technical solution, the light-emitting component can autonomously identify the working state of the range hood, and correspondingly control the plurality of second light beads to emit light to emit a corresponding color beam, with a relatively fast response speed. And when the control device in the range hood fails, the light-emitting component can also emit a corresponding color beam based on the working state of the range hood, so as to ensure the light-emitting reliability of the light-emitting component, and further ensure the indication reliability of the indicating device.

[0011] In some exemplary embodiments, the light-emitting module further includes a diffusion plate, and the diffusion plate is located between the light-emitting component and the light-transmitting cover.

[0012] In the above technical solution, the diffusion plate can change the light beam, that is, the diffusion plate can transmit the light beam emitted by the light-emitting module to the light-transmitting cover, so as to improve the light-emitting reliability and light-emitting uniformity of the light-emitting module.

[0013] In some exemplary embodiments, the material of the diffusion plate includes any one of acrylic, polycarbonate, or silica gel.

[0014] In some exemplary embodiments, the light-emitting module and the light-transmitting cover are fixedly connected by ultrasonic waves.

[0015] In the above technical solution, the light-emitting module and the light-transmitting cover are ultrasonically fixedly connected to prevent the oil-gas mixture or water vapor in the kitchen from entering the indicating device, which may cause damage to the light-emitting module and result in a lighting failure, further improving the light-emitting reliability of the light-emitting module, and thus ensuring the indicating reliability of the indicating device.

[0016] In some exemplary embodiments, an oil fume cavity is formed inside the range hood body, and the light-emitting module is connected to the range hood body on the side adjacent to the oil fume cavity.

[0017] In a second aspect, an embodiment of the present application provides a range hood, including a range hood body and the indicating device according to any optional manner of the first aspect. The range hood body is provided with a receiving cavity; the light-emitting module is fixed in the receiving cavity.

[0018] In some exemplary embodiments, the range hood further includes a mounting bracket. The mounting bracket is located in the receiving cavity and fixedly connected to the cavity wall of the receiving cavity. A second mounting cavity is formed in the mounting bracket, and the light-emitting module is fixed in the second mounting cavity.

[0019] In the above technical solution, the entire light-emitting module is fixedly connected to the mounting bracket, and the mounting bracket is fixedly connected to the cavity wall of the receiving cavity to further improve the connection firmness between the light-emitting module and the range hood body. At the same time, when it is necessary to replace the light-emitting module, there is no need to sequentially remove the connecting members between the light-emitting module and the range hood body from the range hood body. Instead, the mounting bracket can be directly removed to facilitate the replacement of the light-emitting module and improve the convenience of replacement and maintenance.

[0020] In some exemplary embodiments, a plurality of elastic members are spaced apart on the cavity wall of the second mounting cavity, and a plurality of grooves are spaced apart on the light-emitting module. The plurality of elastic members are respectively and correspondingly clamped with the plurality of grooves.

[0021] In the above technical solution, the plurality of elastic members are respectively and correspondingly clamped with the plurality of grooves to realize the connection between the housing and the mounting bracket, with relatively high connection firmness and convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of a range hood in an embodiment of the present application;

[0024] Figure 2Schematic diagram of the exploded structure of a range hood in an embodiment of the present application;

[0025] Figure 3 Schematic diagram of the partial sectional structure of a range hood in an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the structure of an indicating device in an embodiment of the present application;

[0027] Figure 5 Schematic diagram of the exploded structure of an indicating device in an embodiment of the present application;

[0028] Figure 6 Schematic diagram of the sectional structure of an indicating device in an embodiment of the present application;

[0029] Figure 7 Schematic diagram of the partial sectional structure of a range hood in another embodiment of the present application;

[0030] Figure 8 Schematic diagram of the partial sectional structure of a range hood in an embodiment of the present application;

[0031] Figure 9 Schematic diagram of the exploded structure of a mounting bracket and an indicating device in an embodiment of the present application;

[0032] Figure 10 Schematic diagram of the partial structure of a range hood in an embodiment of the present application;

[0033] Figure 11 Schematic diagram of the exploded structure of an indicating device in another embodiment of the present application;

[0034] Figure 12 Schematic diagram of the exploded structure of an indicating device in yet another embodiment of the present application;

[0035] Figure 13 Schematic diagram of the exploded structure of an indicating device in still another embodiment of the present application;

[0036] Figure 14 Schematic diagram of the sectional structure of an indicating device in another embodiment of the present application.

[0037] Explanation of reference numerals:

[0038] 1. Indicator device; 11. Light-emitting module; 11A. Groove; 111. Housing; 111A. First installation cavity; 111B. Boss; 112. Light-emitting component; 1121. First circuit board; 1122. First light-emitting diode; 1123. Second circuit board; 1124. Second light-emitting diode; 1125. Detection component; 113. Diffusion plate; 12. Translucent cover; 121. Connecting plate; 2. Range hood body; 2A. Oil fume cavity; 2B. Accommodation cavity; 2C. First opening; 3. Mounting bracket; 3A. Second installation cavity; 3B. Second opening; 31. Elastic member; 32. Fixing member; 32A. Threaded hole; AA. First direction. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0040] Range hoods are usually installed in kitchens. For example, there are various types of range hoods such as top suction, side suction, low suction (integrated stove type), Chinese style, tower type, top-side dual suction, bottom-side dual suction, etc., which are used to suck the oil fume gas in the kitchen into the machine body and discharge it outdoors. With the further improvement of the performance of range hoods, a display screen for displaying the working state is usually installed in the range hood, so that users can know the working state of the range hood in real time based on the display screen. For example, in the related art, a fully embedded range hood is provided, and an operation interface (User Interface, UI) is installed on the fully embedded range hood. The UI can generate corresponding information based on the working state of the range hood and display it. However, due to the structure and installation position of the fully embedded range hood, the UI is usually covered by the back of the cabinet door, resulting in users being unable to know the working state of the range hood in time and having a poor experience.

[0041] Therefore, the embodiments of the present application provide an indicator device and a range hood. The indicator device can emit light beams of different colors according to different working states of the range hood, so as to facilitate users to know the working state of the range hood in real time and improve the user experience.

[0042] The indicator device and the range hood provided by the present application will be introduced exemplarily below with reference to the accompanying drawings.

[0043] Please refer to Figures 1 to 2, an embodiment of the present application provides a range hood. The range hood includes a range hood body 2. A fume chamber 2A can be provided inside the range hood body 2. When the range hood is working, the range hood will suck the fume gas in the kitchen into the fume chamber 2A inside the range hood body 2 and discharge it outdoors. Here, it can be understood that an air outlet assembly (not shown in the figure) is also provided on the range hood body 2. An air outlet chamber communicating with the fume chamber 2A is provided inside the air outlet assembly to discharge the fume gas in the fume chamber 2A outdoors.

[0044] In order to enable users to know the working state of the range hood in real time, the range hood further includes an indicating device 1. The range hood body 2 can be provided with a receiving cavity 2B for receiving the indicating device 1. The indicating device 1 can emit light beams of different colors according to different working states of the range hood. To facilitate users to know the working state of the range hood in real time based on the indication information of the indicating device 1, a part of the indicating device 1 is located inside the receiving cavity 2B and fixedly connected to the range hood body 2, and another part of the indicating device 1 protrudes from the receiving cavity 2B to provide indication information to the outside, so that users can know the working state of the range hood in real time based on the indicating device 1, improving the user experience. At the same time, a part of the indicating device 1 is located inside the receiving cavity 2B and fixedly connected to the range hood body 2, ensuring the firmness between the indicating device 1 and the range hood body 2 and avoiding the problem that the indicating device 1 falls off due to external force and affects the indication effect, that is, ensuring the indication reliability of the indicating device 1.

[0045] In one example, please refer to Figures 3 to 4 , the indicating device 1 can include a light-emitting module 11 and a light-transmitting cover 12. The light-emitting module 11 is located inside the range hood body 2, that is, the light-emitting module 11 is located inside the receiving cavity 2B and connected to the range hood body 2. The light-transmitting cover 12 is located outside the range hood body 2 and connected to the light-emitting module 11. The light-emitting module 11 is used to emit light beams of different colors according to different working states of the range hood. The light-transmitting cover 12 transmits the light beams to form indication information. Here, it can be understood that the indication information refers to the final display effect formed by the convergence of light beams of different colors in different working states.

[0046] In this example, the light-emitting module 11 can emit light beams of different colors based on different working states of the range hood. The light-transmitting cover 12 located outside the range hood body 2 transmits the light beams out of the range hood body 2 to form indication information, enabling the user to know the working state of the range hood in real time based on the indication information, thus improving the user experience. Moreover, the light-emitting module 11 in this application is located inside the range hood body 2, so that the light beams emitted by the light-emitting module 11 will converge inside the range hood body 2, avoiding the problem that part of the light beams emitted by the light-emitting module 11 dissipate when the light-emitting module 11 is arranged outside the range hood body 2, which in turn affects the display effect of the light beams emitted by the light-emitting module 11. That is, arranging the light-emitting module 11 inside the range hood body 2 ensures the light-emitting reliability of the light-emitting module 11, and thus ensures the indication reliability of the indicating device 1. At the same time, the light-emitting module 11 is fixed inside the range hood body 2, improving the connection stability of the light-transmitting cover 12 connected to the light-emitting module 11 on the range hood body 2, avoiding the problem that the light-transmitting cover 12 falls off due to external force and affects the indication effect. That is, the firmness of the whole indicating device 1 and the range hood body 2 is improved, and thus the indication reliability of the indicating device 1 is ensured.

[0047] In order to further improve the connection firmness of the light-emitting module 11 inside the range hood body 2 to improve the connection firmness of the whole indicating device 1 and the range hood body 2, in one example, please refer to Figures 5 to 6 , the light-emitting module 11 may include a housing 111 and a light-emitting component 112. The housing 111 is fixed inside the range hood body 2. A first installation cavity 111A is formed inside the housing 111. The light-emitting component 112 is located inside the first installation cavity 111A and fixedly connected to the housing 111. The light-emitting component 112 is used to emit light beams of different colors to the light-transmitting cover 12 according to the working state of the range hood. In this example, the light-emitting component 112 is fixed inside the range hood body 2 via the housing 111, and the fixed area between the housing 111 and the range hood body 2 is relatively large, thereby improving the connection firmness of the whole light-emitting module 11 inside the range hood body 2. At the same time, the housing 111 can protect the light-emitting component 112 located inside the first installation cavity 111A from being damaged, avoiding the problem of damage to the light-emitting component 112, so as to further improve the light-emitting reliability of the light-emitting component 112.

[0048] In one example, as Figure 6 shown, a boss 111B is provided on the cavity side wall of the first installation cavity 111A close to the cavity bottom wall. One side of the light-emitting component 112 abuts against and is fixedly connected to the boss 111B to improve the firmness of the light-emitting component 112 fixed to the housing 111. Other buckles and limiting structures may also be provided on the cavity side wall of the first installation cavity 111A to improve the fixing firmness of the light-emitting component 112 inside the housing 111. In this regard, this application does not make specific limitations.

[0049] Optionally, the housing 111 can be a cubic structure with an opening on one side. The light-emitting component 112 can be installed and fixed in the housing 111 through the opening. At the same time, several other planes of the cubic structure can be connected to the surface of the range hood body 2 to improve the connection firmness between the housing 111 and the range hood body 2, thereby improving the connection firmness between the entire light-emitting module 11 and the range hood body 2.

[0050] Optionally, the housing 111 can be made of plastic materials, such as acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate (PC), polypropylene (PP), and thermoplastic polyurethanes (TPU). Plastic materials are light, have good toughness, and are relatively low in cost.

[0051] Optionally, the housing 111 can also be made of silicone or rubber materials. Silicone and rubber materials are light, have good toughness, and have relatively high anti-slip performance. The housing 111 can also be made of other materials such as metal. In this regard, the present application does not make specific restrictions.

[0052] To further improve the connection firmness between the housing 111 and the range hood body 2, in one example, please refer to Figures 7 to 10 , the range hood can further include a mounting bracket 3. The mounting bracket 3 is located in the accommodation cavity 2B and is fixedly connected to the cavity wall of the accommodation cavity 2B. A second installation cavity 3A is formed in the mounting bracket 3. The light-emitting module 11 is fixed in the second installation cavity 3A. That is, at this time, the housing 111 is fixed in the second installation cavity 3A. The housing 111 is installed in the range hood body 2 through the mounting bracket 3. The entire light-emitting module 11 is fixedly connected to the mounting bracket 3, and the mounting bracket 3 is fixedly connected to the cavity wall of the accommodation cavity 2B to further improve the connection firmness between the light-emitting module 11 and the range hood body 2. At the same time, when it is necessary to replace the light-emitting module 11, it is not necessary to sequentially remove the connecting parts between the light-emitting module 11 and the range hood body 2 from the range hood body 2. Instead, the mounting bracket 3 can be directly removed to facilitate the replacement of the light-emitting module 11 and improve the convenience of replacement and maintenance.

[0053] To enable the mounting bracket 3 to be fixedly connected to the cavity wall of the accommodation cavity 2B and at the same time facilitate disassembly and assembly, in one example, as Figure 10As shown, at least one fixing member 32 is provided on one side of the mounting bracket 3. The fixing member 32 is provided with a threaded hole 32A. At least one first opening 2C is provided on the cavity side wall of the accommodating cavity 2B. After the mounting bracket 3 is installed into the accommodating cavity 2B, the fixing member 32 abuts against the first opening 2C and partially protrudes from the first opening 2C. At the same time, the length of the fixing member 32 along the first direction AA is the same as the caliber size of the first opening 2C along the first direction AA, so that the fixing member 32 can be limited at the first opening 2C. Then, a fastener passes through the threaded hole 32A to fix and limit the mounting bracket 3 in the accommodating cavity 2B, so as to ensure the connection firmness between the mounting bracket 3 and the range hood body 2. At the same time, when it is necessary to remove the mounting bracket 3, the disassembly of the two can be realized by removing the fastener, which is convenient for disassembly and assembly.

[0054] Optionally, one fixing member 32 can be respectively provided on both sides of the mounting bracket 3. Two first openings 2C are provided on the cavity side wall of the accommodating cavity 2B. After the mounting bracket 3 is installed into the accommodating cavity 2B, the fixing members 32 on both sides respectively abut against the two first openings 2C one by one and partially protrude from the first openings 2C. The mounting bracket 3 can be limited at a fixed position through the two fixing members 32 to improve the limiting reliability.

[0055] To ensure the connection firmness between the housing 111 and the mounting bracket 3, in one example, a plurality of elastic members 31 are provided at intervals on the surface of the mounting bracket 3 (i.e., on the cavity wall of the second mounting cavity 3A as shown in Figure 9 ). A plurality of grooves 11A are provided at intervals on the surface of the light-emitting module 11 (i.e., on the outer surface of the housing 111 as shown in Figure 9 ). The plurality of elastic members 31 are respectively and correspondingly clamped with the plurality of grooves 11A to realize the connection between the housing 111 and the mounting bracket 3. The connection firmness is relatively high and it is convenient for disassembly and assembly.

[0056] Optionally, the elastic member 31 can be a buckle with an elastic part, or a protruding member provided with a spring, or other structures. In this regard, the present application does not make specific limitations.

[0057] To further improve the light-emitting reliability of the light-emitting component 112, in one example, please refer to Figures 8 to 9, a second opening 3B is provided on the bottom wall of the second installation cavity 3A, and the diameter of the second opening 3B is the same as the dimension in the length direction of the light-transmitting cover 12. When the housing 111 is installed in the second installation cavity 3A, the side of the light-transmitting cover 12 abuts against the second opening 3B and protrudes from the second installation cavity 3A, so that the housing 111 is located in the closed second installation cavity 3A. In this way, through the double shielding of the housing 111 and the mounting bracket 3, it is further avoided that the light-emitting module 11 is arranged outside the range hood body 2, resulting in the dissipation of some of the emitted light beams, and further affecting the display effect of the light beams emitted by the light-emitting module 11, further improving the light-emitting reliability of the light-emitting module 11, and thus ensuring the indication reliability of the indicating device 1.

[0058] Optionally, the mounting bracket 3 can be made of plastic materials, such as acrylonitrile-butadiene-styrene copolymer, polycarbonate, polypropylene, and thermoplastic polyurethane. Plastic materials are light, have good toughness, and low cost. The mounting bracket 3 can also be made of other materials such as metal. In this regard, the present application does not make specific limitations.

[0059] When the light-emitting component 112 has been used for a long time, there may be problems of failure. In order to facilitate the disassembly, assembly, inspection and repair of the light-emitting component 112, optionally, the housing 111 and the light-emitting component 112 can be independent structures. When the light-emitting component 112 fails after being used for a long time, only the light-emitting component 112 can be removed, inspected or replaced, without replacing the housing 111, saving a certain manufacturing cost. Optionally, the housing 111 and the light-emitting component 112 can also be an integral structure, which is convenient for preparation. The specific settings of the housing 111 and the light-emitting component 112 can be set according to actual needs. In this regard, the present application does not make specific limitations.

[0060] In order to enable the light-emitting component 112 to emit light beams of different colors corresponding to different working states of the range hood, in one example, the range hood further includes a control device (not shown in the figure), and the control device is used to control and switch the working states of the range hood, such as Figure 11 shown, the light-emitting component 112 can include a first circuit board 1121 and a plurality of first lamp beads 1122. The first circuit board 1121 is fixedly connected to the housing 111 and electrically connected to the control device. The plurality of first lamp beads 1122 are arranged at intervals on one side of the first circuit board 1121 facing the light-transmitting cover 12.

[0061] In this example, while controlling and switching the operating state of the range hood, the control device also sends an electrical signal representing the operating state of the range hood to the first circuit board 1121. After receiving the electrical signal sent by the control device, the first circuit board 1121 can control multiple first light beads 1122 to emit light to emit a light beam of a corresponding color. Exemplarily, when the range hood is in the shutdown (i.e., not working) state, the control device sends an electrical signal representing that the range hood is not working to the first circuit board 1121. The first circuit board 1121 can control multiple first light beads 1122 to emit light to emit red light according to this electrical signal. At this time, the color presented by the light-transmitting cover 12 is red, representing that the range hood is in the shutdown state. When the range hood is in the working state, the control device sends an electrical signal representing that the range hood is working to the first circuit board 1121. The first circuit board 1121 can control multiple first light beads 1122 to emit light to emit green light according to this electrical signal. At this time, the color presented by the light-transmitting cover 12 is green, representing that the range hood is in the working state.

[0062] For another example, the range hood usually includes three smoking intensity levels: low, medium, and high. When the oil fume concentration in the kitchen is relatively high, the user can control the range hood to operate at the high level through the control device. At this time, the control device also sends an electrical signal representing that the range hood is operating at the high level to the first circuit board 1121. The first circuit board 1121 can control multiple first light beads 1122 to emit light to emit a darker green color according to this electrical signal, that is, the color presented by the light-transmitting cover 12 is dark green. When the electrical signal received by the first circuit board 1121 represents that the range hood is operating at the low level, the first circuit board 1121 can control multiple first light beads 1122 to emit light to emit a lighter green color, that is, the color presented by the light-transmitting cover 12 is light green. In this way, the operating state of the range hood can be distinguished by the depth of the light beam emitted by the light-emitting component 112.

[0063] Optionally, the gaps between multiple first light beads 1122 are equal to avoid the problem that multiple first light beads 1122 on part of the first circuit board 1121 are relatively concentrated, while multiple first light beads 1122 on another part of the first circuit board 1121 are relatively dispersed, resulting in a polarized color presented by the light-transmitting cover 12, that is, one part has a darker color and the other side has a lighter color. By setting the gaps between multiple first light beads 1122 to be equal, the light-emitting uniformity of multiple first light beads 1122 is ensured.

[0064] Optionally, to reduce the manufacturing cost, the sizes of multiple first lamp beads 1122 can be set to be larger so that they are arranged side by side on the first circuit board 1121 to achieve the light-emitting function through a small number of first lamp beads 1122; to improve the accuracy of the emitted light beam, the sizes of multiple first lamp beads 1122 can be set to be smaller so that they are arranged on the first circuit board 1121 in a matrix manner, and a large number of first lamp beads 1122 are used to improve the accuracy of the emitted light beam. In this regard, the present application does not make specific limitations.

[0065] Optionally, the first lamp beads 1122 can be light-emitting diodes (LEDs). Specifically, red lamp beads, green lamp beads, and blue lamp beads can be used. Light-emitting diodes have high energy efficiency, long lifespan, and rich colors. Using light-emitting diodes for the first lamp beads 1122 can improve the richness of the emitted light beam, and their high energy efficiency means that they do not consume too much electrical energy.

[0066] To enable the light-emitting component 112 to independently emit light beams of different colors corresponding to different working states of the range hood, in one example, as Figure 12 shown, the light-emitting component 112 can include a second circuit board 1123, multiple second lamp beads 1124, and a detection component 1125. The second circuit board 1123 is fixedly connected to the housing 111. Multiple second lamp beads 1124 are arranged at intervals on one side of the second circuit board 1123 facing the light-transmitting cover 12. The detection component 1125 is arranged on the second circuit board 1123. The detection component 1125 is used to detect the working state of the range hood and generate an electrical signal representing the working state of the range hood. Among them, the second circuit board 1123 is used to receive the electrical signal and control multiple second lamp beads 1124 to emit light to emit corresponding color light beams. In this example, the light-emitting component 112 can independently identify the working state of the range hood and correspondingly control multiple second lamp beads 1124 to emit light to emit corresponding color light beams, with a relatively fast response speed. And when the control device in the range hood fails, the light-emitting component 112 can also emit corresponding color light beams based on the working state of the range hood to ensure the light-emitting reliability of the light-emitting component 112, and further ensure the indication reliability of the indication device 1.

[0067] For example, when the range hood is in the shutdown (i.e., not working) state, the detection component 1125 will detect that the range hood is in the shutdown state at this time, and send an electrical signal indicating that the range hood is not working to the second circuit board 1123. The second circuit board 1123 can control multiple second light beads 1124 to emit red light according to this electrical signal, so the color presented by the light-transmitting cover 12 at this time is red, indicating that the range hood is in the shutdown state. When the range hood is in the working state, the detection component 1125 will detect that the range hood is in the working state, and send an electrical signal indicating that the range hood is working to the second circuit board 1123. The second circuit board 1123 can control multiple second light beads 1124 to emit green light according to this electrical signal, so the color presented by the light-transmitting cover 12 at this time is green, indicating that the range hood is in the working state.

[0068] For another example, the range hood usually includes three smoking intensity levels: low, medium, and high. When the range hood is working at the high level, the detection component 1125 detects the gear information of the range hood and sends an electrical signal indicating that the range hood is working at the high level to the second circuit board 1123. The second circuit board 1123 can control multiple second light beads 1124 to emit a darker green light according to this electrical signal, that is, the color presented by the light-transmitting cover 12 is dark green. When the electrical signal received by the second circuit board 1123 indicates that the range hood is working at the low level, the second circuit board 1123 can control multiple second light beads 1124 to emit a lighter green light, that is, the color presented by the light-transmitting cover 12 is light green. In this way, the working state of the range hood can be distinguished by the depth of the light beam emitted by the light-emitting component 112.

[0069] Here, it is worth noting that the detection component 1125 can only detect the working state of the range hood, and then send an electrical signal indicating the working state of the range hood to the second circuit board 1123. A processing program can be set inside the second circuit board 1123 to process the received electrical signal to obtain the color of the light beam that needs to be emitted, and correspondingly control the second light beads 1124 to emit the light beam of this color. The detection component 1125 can also have a processing function, that is, after the detection component 1125 detects the working state of the range hood, it will process the signal to obtain the color of the light beam that needs to be emitted, and send an electrical signal indicating the color of the light beam that needs to be emitted to the second circuit board 1123, so that the second circuit board 1123 can directly control the second light beads 1124 to emit the light beam of the corresponding color based on this electrical signal. For this, the present application does not make specific restrictions.

[0070] To improve the detection reliability of the detection component 1125, the detection component 1125 can be arranged on the same plane of the second circuit board 1123 as multiple second lamp beads 1124, that is, the detection component 1125 faces the object to be detected. Assuming to further improve the accuracy of the detection component 1125, multiple detection components 1125 can be arranged on this plane; assuming to save manufacturing costs, only one detection component 1125 can be arranged at the middle position on this plane. The specific arrangement position and quantity of the detection component 1125 can be set according to actual requirements, and the present application does not make specific restrictions on this.

[0071] Optionally, the detection component 1125 can be a device or circuit such as a sensor, a detector, or an encoder that can implement the above detection functions, and the present application does not make specific restrictions on this.

[0072] Optionally, the gaps between multiple second lamp beads 1124 are equal to avoid the problem that multiple second lamp beads 1124 on part of the second circuit board 1123 are relatively concentrated, while multiple second lamp beads 1124 on another part of the second circuit board 1123 are relatively dispersed, resulting in a polarized color presented by the light-transmitting cover 12, that is, one part has a darker color and the other side has a lighter color. By setting the gaps between multiple second lamp beads 1124 to be equal, the light-emitting uniformity of multiple second lamp beads 1124 is ensured.

[0073] Optionally, to reduce manufacturing costs, the sizes of multiple second lamp beads 1124 can be set larger to be arranged side by side on the second circuit board 1123 to achieve the light-emitting function with a small number of second lamp beads 1124; to improve the accuracy of the emitted light beam, the sizes of multiple second lamp beads 1124 can be set smaller to be arranged on the second circuit board 1123 in a matrix manner to improve the accuracy of the emitted light beam with a large number of second lamp beads 1124. The present application does not make specific restrictions on this.

[0074] Optionally, the second lamp bead 1124 can be a light-emitting diode, specifically, a red lamp bead, a green lamp bead, and a blue lamp bead can be used. The light-emitting diode has high energy efficiency, long lifespan, and rich colors. Using the light-emitting diode for the second lamp bead 1124 can improve the richness of the emitted light beam, and it has high energy efficiency and does not consume much electric energy.

[0075] Further, to improve the light-emitting reliability and light-emitting uniformity of the light-emitting module 11, in one example, please refer to Figures 13 to 14 , the light-emitting module 11 can further include a diffusion plate 113, and the diffusion plate 113 is located between the light-emitting component 112 and the light-transmitting cover 12. The diffusion plate 113 can change the light beam, that is, the diffusion plate 113 can transmit the light beam emitted by the light-emitting module 11 to the light-transmitting cover 12 to improve the light-emitting reliability and light-emitting uniformity of the light-emitting module 11.

[0076] Optionally, the material of the diffusion plate 113 may include any one of acrylic, polycarbonate, or silica gel. For example, the material of the diffusion plate 113 may be an acrylic diffusion plate. The acrylic diffusion plate has a high light transmittance and high durability. When the diffusion plate 113 is an acrylic diffusion plate, a good light diffusion effect can be achieved through the back texture design to improve the light output uniformity of the light output module 11. The diffusion plate 113 may also adopt other structures that can achieve the above functions. In this regard, the present application does not make specific limitations.

[0077] Here, it can be understood that since there will be a certain amount of heat generated when the lamp beads in the light output component 112 are operating, in order to avoid the problem of the heat baking the diffusion plate 113, a certain gap may be provided between the light output component 112, the diffusion plate 113, and the light transmissive cover 12, so that the heat generated when the lamp beads in the light output component 112 are operating can diffuse through the gap, avoiding the problem of the heat baking the diffusion plate 113.

[0078] Optionally, a limiting and fixing structure may be provided on the cavity side wall of the first installation cavity 111A in the housing 111 to fix the diffusion plate 113 between the light output component 112 and the light transmissive cover 12. The limiting and fixing structure may be a convex block, an elastic member, or other structures. The setting position of the limiting and fixing structure may also be set according to actual needs. In this regard, the present application does not make specific limitations.

[0079] In one example, the light transmissive cover 12 may include a connecting plate 121. The connecting plate 121 cooperates with the housing 111 to form a sealed first installation cavity 111A, so as to protect the light output component 112 inside the housing 111, avoiding the problem that the oil-gas mixture or water vapor in the kitchen enters the first installation cavity 111A, resulting in damage to the light output component 112 and light emission failure, ensuring the light output reliability of the light output component 112, and further ensuring the indication reliability of the indicating device 1.

[0080] To further improve the protection effect, optionally, the light output module 11 and the light transmissive cover 12 may be fixedly connected by ultrasonic waves, that is, the connecting plate 121 and the housing 111 of the light output module 11 may be fixedly connected by ultrasonic waves, so as to avoid the problem that the oil-gas mixture or water vapor in the kitchen enters the first installation cavity 111A, resulting in damage to the light output component 112 and light emission failure, further improving the light output reliability of the light output component 112, and further ensuring the indication reliability of the indicating device 1.

[0081] Optionally, the light transmissive cover 12 may be made of glass, acrylic, polycarbonate, silicone resin, or other light transmissive materials, so that the light transmissive cover 12 can transmit the light beam emitted by the light output module 11 to play an indicating role.

[0082] In one example, please refer to Figures 1 to 2 As shown in Figures 1 to 2 , the indicating device 1 can be connected to the range hood body 2 on the side adjacent to the oil fume cavity 2A. That is, at this time, the light-emitting module 11 in the indicating device 1 is located inside the range hood body 2 on the side adjacent to the oil fume cavity 2A, and the light-transmitting cover 12 protrudes outside the range hood body 2 on the side adjacent to the oil fume cavity 2A, so that users can know the working state of the range hood based on the indicating device 1.

[0083] In summary, the light-emitting module 11 in the indicating device 1 provided in the present application can emit light beams of different colors based on different working states of the range hood. The light-transmitting cover 12 located outside the range hood body 2 transmits the light beam out of the range hood body 2 to form indication information, enabling users to know the working state of the range hood in real time based on the indication information, thereby improving the user experience. Moreover, the light-emitting module 11 in the present application is located inside the range hood body 2, so that the light beam emitted by the light-emitting module 11 will converge inside the range hood body 2, avoiding the problem that when the light-emitting module 11 is arranged outside the range hood body 2, some of the emitted light beams are dissipated, which in turn affects the display effect of the light beam emitted by the light-emitting module 11. That is, arranging the light-emitting module 11 inside the range hood body 2 ensures the light-emitting reliability of the light-emitting module 11, and thus ensures the indication reliability of the indicating device 1. At the same time, the light-emitting module 11 is fixed inside the range hood body 2, improving the connection stability of the light-transmitting cover 12 connected to the light-emitting module 11 on the range hood body 2, avoiding the problem that the light-transmitting cover 12 falls off due to external force and affects the indication effect. That is, it improves the firmness between the overall indicating device 1 and the range hood body 2, and thus ensures the indication reliability of the indicating device 1.

[0084] Optionally, the range hood provided in the present application can be wall-mounted. For example, as Figures 1 to 2 shown in Figures 1 to 2 , the range hood can include two parts arranged at an angle. Among them, one part of the range hood is fixed on the wall of the target scene, and the other part of the range hood is provided with an oil fume cavity 2A. The range hood can also be a top suction, side suction or other types of range hoods. In this regard, the present application does not make specific limitations.

[0085] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0086] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An indicating device (1), applied to a range hood, the range hood comprising a range hood body (2), characterized in that: The indicating device (1) comprises: a light output module (11), the light output module (11) being located in the range hood body (2) and connected to the range hood body (2), the light output module (11) being used to emit light beams of different colors according to different working states of the range hood; and A light-transmitting cover (12), the light-transmitting cover (12) being located outside the range hood body (2) and connected to the light output module (11), the light-transmitting cover (12) being used for transmitting the light beam.

2. The indicating device (1) according to claim 1, characterized in that The light output module (11) comprises: a shell (111), the shell (111) being fixed in the range hood body (2), and a first installation cavity (111A) being formed inside the shell (111); and, A light emitting component (112), the light emitting component (112) being located in the first mounting cavity (111A) and fixedly connected to the housing (111), the light emitting component (112) being used for emitting light beams of different colors to the light-transmitting cover (12) according to the working state of the range hood.

3. The indicating device (1) according to claim 2, characterized in that The range hood further comprises a control device, which is used to control and switch the working state of the range hood. The light output component (112) comprises: a first circuit board (1121), the first circuit board (1121) being fixedly connected to the housing (111) and electrically connected to the control device; and a plurality of first lamp beads (1122), wherein the plurality of first lamp beads (1122) are arranged at intervals on a surface of the first circuit board (1121) facing the light-transmitting cover (12); The first circuit board (1121) is used to receive an electrical signal indicating the working state of the range hood sent by the control device, and control the plurality of first lamp beads (1122) to emit light to emit light beams of corresponding colors according to the electrical signal.

4. The indicating device (1) according to claim 2, characterized in that The light output component (112) comprises: A second circuit board (1123), the second circuit board (1123) being fixedly connected to the housing (111); a plurality of second lamp beads (1124), wherein the plurality of second lamp beads (1124) are arranged at intervals on a surface of the second circuit board (1123) facing the light-transmitting cover (12); and, a detection element (1125), the detection element (1125) being arranged on the second circuit board (1123), the detection element (1125) being used to detect the working state of the range hood and generate an electrical signal indicating the working state of the range hood; The second circuit board (1123) is used to receive the electrical signal and control the plurality of second lamp beads (1124) to emit light so as to emit light beams of corresponding colors.

5. The indicating device (1) according to claim 2, characterized in that The light output module (11) further comprises: A diffusion plate (113), wherein the diffusion plate (113) is located between the light output component (112) and the light-transmitting cover (12).

6. The indicating device (1) according to claim 5, characterized in that The material of the diffusion plate (113) includes any one of acrylic, polycarbonate or silicone.

7. The indicating device (1) according to any one of claims 1 to 6, characterized in that: The light output module (11) and the light-transmitting cover (12) are fixedly connected by ultrasonic wave.

8. The indicating device (1) according to claim 7, characterized in that An oil fume cavity (2A) is formed inside the range hood body (2), and the light output module (11) is connected to the range hood body (2) on a side adjacent to the oil fume cavity (2A).

9. A range hood, characterized in that: include: A range hood body (2), wherein the range hood body (2) is provided with a receiving cavity (2B); and According to any one of claims 1 to 8, the light output module (11) is fixed in the accommodating cavity (2B).

10. The range hood according to claim 9, characterized in that: The range hood further comprises a mounting bracket (3), the mounting bracket (3) being located in the accommodating cavity (2B) and fixedly connected to the cavity wall of the accommodating cavity (2B), a second mounting cavity (3A) being formed in the mounting bracket (3), and the light output module (11) being fixed in the second mounting cavity (3A).

11. The range hood according to claim 10, characterized in that: A plurality of elastic members (31) are arranged at intervals on the cavity wall of the second installation cavity (3A), a plurality of grooves (11A) are arranged at intervals on the light output module (11), and the plurality of elastic members (31) are snap-fitted with the plurality of grooves (11A) in a one-to-one correspondence.

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