Indicating device and range hood

Abstract

The embodiment of the invention 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 in particular to an indicating device and a range hood. Background Art

[0002] A range hood is usually installed in the kitchen to suck the kitchen fumes into the machine body and discharge it outdoors. However, due to the structure and installation location of the range hood, the user cannot know the working status of the range hood in time, and the user experience is poor. Summary of the invention

[0003] The embodiments of the present application provide an indication device and a range hood, which are intended to solve the problem that users cannot know the working status of the range hood in time and have a poor user experience.

[0004] In a first aspect, an embodiment of the present application provides an indicating device, which is applied to a range hood. The range hood includes a range hood body, a light output module and a light transparent cover. The light output module is located in the range hood body and connected to the range hood body, and the light output module is used to emit light beams of different colors according to different working states of the range hood; the light transparent cover is located outside the range hood body and connected to the light output module, and the light transparent cover is used to transmit the light beam.

[0005] The indication device provided in the present application can emit light beams of different colors based on the different working states of the range hood from the light output module. The light-transmitting cover located outside the range hood body transmits the light beam out of the range hood body to form indication information, so that the user can know the working state of the range hood in real time based on the indication information, thereby improving the user experience. Moreover, the light output module in the present application is located inside the range hood body, so that the light beam emitted by the light output module will converge inside the range hood body, avoiding the problem that the light output module is set outside the range hood body, causing part of the emitted light beam to dissipate, thereby affecting the display effect of the light beam emitted by the light output module. That is, the light output module is set inside the range hood body to ensure the light output reliability of the light output module, thereby ensuring the indication reliability of the indication device. At the same time, the light output module is fixed in the range hood body, which improves the connection stability of the light cover connected to the light output module on the range hood body, and avoids the problem of the light cover falling off due to external force and affecting the indication effect. That is, the firmness between the overall indicating device and the range hood body is improved, thereby ensuring the indication reliability of the indicating device.

[0006] In some exemplary embodiments, the light output module includes a shell and a light output component; the shell is fixed in the range hood body, and a first installation cavity is formed inside the shell; the light output component is located in the first installation cavity and fixedly connected to the shell, and the light output component is used to emit light beams of different colors to the light transmissive cover according to the working state of the range hood.

[0007] In the above technical solution, the light output component is fixed in the range hood body via the shell, and the fixing area between the shell and the range hood body is large, thereby improving the connection firmness of the light output module as a whole in the range hood body. At the same time, the shell can protect the light output component located in the first installation cavity to avoid damage to the light output component, so as to further improve the light output reliability of the light output 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, and the light emitting component includes a first circuit board and a plurality of first lamp beads; the first circuit board is fixedly connected to the shell and electrically connected to the control device; the plurality of first lamp beads are arranged at intervals on a surface of the first circuit board facing the light-transmitting cover; wherein the first circuit board 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 to emit light beams of corresponding colors according to the electrical signal.

[0009] In some exemplary embodiments, the light output assembly includes a second circuit board, a plurality of second lamp beads and a detection member; the second circuit board is fixedly connected to the shell; the plurality of second lamp beads are arranged at intervals on a surface of the second circuit board facing the light-transmitting cover; the detection member is arranged on the second circuit board, and the detection member is used 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 used to receive the electrical signal and control the plurality of second lamp beads to emit light beams of corresponding colors.

[0010] In the above technical solution, the light emitting component can autonomously identify the working status of the range hood, and correspondingly control multiple second lamp beads to emit light beams of corresponding colors. The response speed is fast, and when the control device in the range hood fails, the light emitting component can also emit light beams of corresponding colors based on the working status of the range hood to ensure the light emitting reliability of the light emitting component, and then ensure the indication reliability of the indication device.

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

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

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

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

[0015] In the above technical solution, the light output 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, causing the light output module to be damaged and causing light failure, thereby further improving the light output reliability of the light output module and ensuring the indication reliability of the indicating device.

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

[0017] In a second aspect, an embodiment of the present application provides a range hood, comprising a range hood body and an indicating device as described in any optional manner of the first aspect, wherein the range hood body is provided with a accommodating cavity; and a light output module is fixed in the accommodating cavity.

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

[0019] In the above technical solution, the light output module is fixedly connected to the mounting bracket as a whole, and the mounting bracket is fixedly connected to the cavity wall of the accommodating cavity, so as to further improve the connection firmness between the light output module and the range hood body. At the same time, when the light output module needs to be replaced, it is not necessary to remove the connecting parts between the light output module and the range hood body from the range hood body one by one, but the mounting bracket can be directly removed to facilitate the replacement of the light output module, thereby improving the convenience of replacement and maintenance.

[0020] In some exemplary embodiments, a plurality of elastic members are disposed at intervals on the cavity wall of the second installation cavity, a plurality of grooves are disposed at intervals on the light output module, and the plurality of elastic members are engaged with the plurality of grooves in a one-to-one correspondence.

[0021] In the above technical solution, a plurality of elastic members are snap-fitted with a plurality of grooves in a one-to-one correspondence to realize the connection between the shell and the mounting bracket. The connection is highly firm and convenient for assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0024] Figure 2This is a schematic diagram of the exploded structure of a range hood in one embodiment of the present application;

[0025] Figure 3 This is a partial cross-sectional structural schematic diagram of a range hood in one embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of an indicator device in an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the exploded structure of an indicator device in one embodiment of the present application;

[0028] Figure 6 It is a schematic cross-sectional structural diagram of an indicating device in one embodiment of the present application;

[0029] Figure 7 is a partial cross-sectional structural schematic diagram of a range hood in another embodiment of the present application;

[0030] Figure 8 This is a partial cross-sectional structural schematic diagram of a range hood in one embodiment of the present application;

[0031] Fig. 9 This is a schematic diagram of the exploded structure of the mounting bracket and the indicating device in one embodiment of the present application;

[0032] Fig.10 This is a schematic diagram of a partial structure of a range hood in one embodiment of the present application;

[0033] Fig.11 This is a schematic diagram of the exploded structure of an indicator device in another embodiment of the present application;

[0034] Fig.12 This is a schematic diagram of the exploded structure of an indicator device in another embodiment of the present application;

[0035] Fig.13 This is a schematic diagram of the exploded structure of an indicator device in another embodiment of the present application;

[0036] Fig.14 It is a schematic cross-sectional structural diagram of an indicating device in another embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Indicator; 11. Light output module; 11A. Groove; 111. Shell; 111A. First mounting cavity; 111B. Boss; 112. Light output assembly; 1121. First circuit board; 1122. First lamp bead; 1123. Second circuit board; 1124. Second lamp bead; 1125. Detection member; 113. Diffuser; 12. Translucent cover; 121. Connecting plate; 2. Range hood body; 2A. Fume cavity; 2B. Accommodating cavity; 2C. First opening; 3. Mounting bracket; 3A. Second mounting cavity; 3B. Second opening; 31. Elastic member; 32. Fixing member; 32A. Threaded hole; AA. First direction. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] A range hood is usually installed in the kitchen, for example, a top suction, side suction, low suction (integrated stove type), Chinese type, tower type, top side double suction, bottom side double suction and other types of range hoods, so as to suck the oil fume gas in the kitchen into the body and discharge it outdoors. With the further improvement of the performance of the range hood, a display screen for displaying the working status is usually also provided in the range hood, so that the user can know the working status of the range hood in real time based on the display screen. For example, a fully embedded range hood is provided in the related art, and an operation interface (User Interface, UI) is provided on the fully embedded range hood. The UI can generate and display corresponding information based on the working status of the range hood. 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 the user being unable to know the working status of the range hood in time, and the user experience is poor.

[0041] To this end, an embodiment of the present application provides an indicating device and a range hood, wherein the indicating device can emit light beams of different colors according to different working states of the range hood, so as to facilitate the user to know the working state of the range hood in real time, thereby improving the user experience.

[0042] The indicating device and the range hood provided in the present application are exemplarily introduced below with reference to the accompanying drawings.

[0043] Please refer to Figure 1 to Figure 2The embodiment of the present application provides a range hood, which includes a range hood body 2. A fume chamber 2A may be provided in 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 in the range hood body 2 and discharge it outdoors. Here, it can be understood that an air outlet component (not shown in the figure) is also provided on the range hood body 2, and an air outlet chamber connected to the fume chamber 2A is provided in the air outlet component to discharge the fume gas in the fume chamber 2A outdoors.

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

[0045] In an example, see Figure 3 to Figure 4 The indicating device 1 may include a light emitting module 11 and a light transparent cover 12. The light emitting module 11 is located in the range hood body 2, that is, the light emitting module 11 is located in the accommodating cavity 2B and is connected to the range hood body 2. The light transparent cover 12 is located outside the range hood body 2 and is 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 transparent 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 under different working states.

[0046] In this example, the light output module 11 can emit light beams of different colors based on the different working states of the range hood, and 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, so that the user can know the working state of the range hood in real time based on the indication information, thereby improving the user experience. In addition, the light output module 11 in the present application is located inside the range hood body 2, so that the light beam emitted by the light output module 11 will converge inside the range hood body 2, avoiding the problem that the light output module 11 is set outside the range hood body 2, causing part of the emitted light beam to dissipate, thereby affecting the display effect of the light beam emitted by the light output module 11, that is, setting the light output module 11 inside the range hood body 2 ensures the light output reliability of the light output module 11, thereby ensuring the indication reliability of the indication device 1. At the same time, the light output module 11 is fixed in the range hood body 2, which improves the connection stability of the light cover 12 connected to the light output module 11 on the range hood body 2, and avoids the problem of the light cover 12 falling off due to external force affecting the indication effect, that is, the firmness between the indicating device 1 as a whole and the range hood body 2 is improved, thereby ensuring the indication reliability of the indicating device 1.

[0047] In order to further improve the connection firmness of the light output module 11 in the range hood body 2, so as to improve the connection firmness of the indicator device 1 as a whole and the range hood body 2, in one example, please refer to Figures 5 and 6 , the light output module 11 may include a shell 111 and a light output component 112. The shell 111 is fixed in the range hood body 2. A first installation cavity 111A is formed inside the shell 111. The light output component 112 is located in the first installation cavity 111A and is fixedly connected to the shell 111. The light output 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 output component 112 is fixed in the range hood body 2 via the shell 111, and the fixing area between the shell 111 and the range hood body 2 is large, thereby improving the connection firmness of the light output module 11 as a whole in the range hood body 2. At the same time, the shell 111 can protect the light output component 112 located in the first installation cavity 111A, avoiding the problem of damage to the light output component 112, so as to further improve the light output reliability of the light output component 112.

[0048] In one example, if Figure 6 As shown, a boss 111B is provided on the side wall of the first installation cavity 111A close to the bottom wall of the cavity, and one side of the light output component 112 is abutted against and fixedly connected to the boss 111B to improve the firmness of the light output component 112 fixed to the shell 111. Other snap-fit ​​and limiting structures can also be provided on the side wall of the first installation cavity 111A to improve the firmness of the light output component 112 fixed in the shell 111. The present application does not make any specific restrictions on this.

[0049] Optionally, the shell 111 can be a cubic structure with an opening on one side, and the light output component 112 can be installed and fixed in the shell 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 shell 111 and the range hood body 2, thereby improving the connection firmness between the light output module 11 as a whole and the range hood body 2.

[0050] Optionally, the shell 111 can be made of plastic material, such as acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), polypropylene (PP) and thermoplastic polyurethanes (TPU). Plastic material is light, tough and low in cost.

[0051] Optionally, the shell 111 may also be made of silicone or rubber material. Silicone and rubber materials are light, tough, and have high anti-slip performance. The shell 111 may also be made of other materials such as metal. This application does not make any specific restrictions on this.

[0052] In order 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 may also include a mounting bracket 3, which is located in the accommodating cavity 2B and fixedly connected to the cavity wall of the accommodating cavity 2B. A second mounting cavity 3A is formed in the mounting bracket 3, and the light output module 11 is fixed in the second mounting cavity 3A, that is, at this time, the shell 111 is fixed in the second mounting cavity 3A, and the shell 111 is rotated in the range hood body 2 through the mounting bracket 3. The light output module 11 is fixedly connected to the mounting bracket 3 as a whole, and the mounting bracket 3 is fixedly connected to the cavity wall of the accommodating cavity 2B to further improve the connection firmness between the light output module 11 and the range hood body 2. At the same time, when the light output module 11 needs to be replaced, there is no need to release the connecting parts between the light output module 11 and the range hood body 2 from the range hood body 2 in sequence, but the mounting bracket 3 can be directly removed to facilitate the replacement of the light output module 11, thereby improving the convenience of replacement and maintenance.

[0053] In order to make the mounting bracket 3 fixedly connected to the cavity wall of the accommodating cavity 2B and facilitate disassembly and assembly, in one example, Fig.10As shown, at least one fixing member 32 is provided on one side of the mounting bracket 3, and a threaded hole 32A is provided on the fixing member 32. At least one first opening 2C is provided on the side wall of the accommodating cavity 2B. When the mounting bracket 3 is installed in 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 diameter of the first opening 2C along the first direction AA, so that the fixing member 32 can be limited at the first opening 2C, and then the fixing member 32 is passed 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 the mounting bracket 3 needs to be removed, the two can be disassembled by removing the fasteners, which is convenient for disassembly and assembly.

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

[0055] In order to ensure the firmness of the connection between the housing 111 and the mounting bracket 3, in one example, the surface of the mounting bracket 3 (i.e., Fig. 9 A plurality of elastic members 31 are arranged at intervals on the wall of the second installation cavity 3A. Fig. 9 A plurality of grooves 11A are arranged at intervals on the outer surface of the shell 111, and a plurality of elastic members 31 are snap-fitted into the plurality of grooves 11A in a one-to-one correspondence to realize the connection between the shell 111 and the mounting bracket 3, the connection is highly firm, and it is convenient for assembly and disassembly.

[0056] Optionally, the elastic member 31 may be a buckle with an elastic portion, or a protrusion provided with a spring, or other structures, and the present application does not impose any specific limitation on this.

[0057] In order to further improve the light emitting reliability of the light emitting component 112, in one example, please refer to Figures 8 to 9A second opening 3B is provided on the bottom wall of the second mounting cavity 3A, and the diameter of the second opening 3B is the same as the dimension of the light-transmitting cover 12 in the length direction. When the shell 111 is installed in the second mounting cavity 3A, the side of the light-transmitting cover 12 abuts against the second opening 3B and protrudes from the second mounting cavity 3A, so that the shell 111 is located in the closed second mounting cavity 3A. In this way, through the double shielding of the shell 111 and the mounting bracket 3, the problem of the light output module 11 being arranged outside the range hood body 2, causing part of the emitted light beam to dissipate, thereby affecting the display effect of the light beam emitted by the light output module 11, is further avoided, and the light output reliability of the light output module 11 is further improved, thereby ensuring the indication reliability of the indication device 1.

[0058] Optionally, the mounting bracket 3 can be made of plastic material, such as acrylonitrile-butadiene-styrene copolymer, polycarbonate, polypropylene and thermoplastic polyurethane. Plastic material is light, tough and low in cost. The mounting bracket 3 can also be made of other materials such as metal. This application does not make any specific restrictions on this.

[0059] When the light emitting component 112 is used for a long time, there may be a problem of failure. In order to facilitate the disassembly and maintenance 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 is used for a long time and fails, only the light emitting component 112 can be removed, repaired or replaced, without replacing the housing 111, saving a certain amount of production cost. Optionally, the housing 111 and the light emitting component 112 can also be an integrated structure for easy preparation. The specific settings of the housing 111 and the light emitting component 112 can be set according to actual needs, and this application does not make specific restrictions on this.

[0060] In order to enable the light assembly 112 to emit light beams of different colors according to different working states of the range hood, in one example, the range hood further includes a control device (not shown in the figure), which is used to control and switch the working state of the range hood, such as Fig.11 As shown, the light emitting component 112 may 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 spaced apart on a surface of the first circuit board 1121 facing the light-transmitting cover 12 .

[0061] In this example, while controlling and switching the working state of the range hood, the control device will also send an electrical signal indicating the working 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 the plurality of first lamp beads 1122 to emit light to emit light beams of corresponding colors according to the electrical signal. Exemplarily, when the range hood is in the shutdown state (i.e., not working), the control device will send an electrical signal indicating that the range hood is not working to the first circuit board 1121. The first circuit board 1121 can control the plurality of first lamp beads 1122 to emit light to emit red light according to the electrical signal. At this time, the color presented by the light-transmitting cover 12 is red, indicating that the range hood is in the shutdown state. When the range hood is in working condition, the control device will send an electrical signal to the first circuit board 1121 indicating that the range hood is working. The first circuit board 1121 can control the multiple first lamp beads 1122 to emit green light according to the electrical signal. At this time, the color presented by the light-transmitting cover 12 is green, indicating that the range hood is in working condition.

[0062] For another example, the range hood usually includes three levels of smoke intensities: low, medium, and high. When the smoke concentration in the kitchen is high, the user can control the range hood to operate at a high level through the control device. At this time, the control device will also send an electrical signal to the first circuit board 1121 indicating that the range hood operates at a high level. The first circuit board 1121 can control the multiple first lamp beads 1122 to emit light to emit a darker green color according to the 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 indicates that the range hood operates at a low level, the first circuit board 1121 can control the multiple first lamp 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 working 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 the multiple first lamp beads 1122 are equal to avoid the problem that the multiple first lamp beads 1122 on some parts of the first circuit board 1121 are relatively concentrated, and the multiple first lamp beads 1122 on other parts of the first circuit board 1121 are relatively dispersed, resulting in the light-transmitting cover 12 presenting a polarized color, that is, one part is darker and the other part is lighter. By setting the gaps between the multiple first lamp beads 1122 to be equal, the light uniformity of the multiple first lamp beads 1122 is ensured.

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

[0065] Optionally, the first lamp bead 1122 can use a light emitting diode (LED), specifically a red lamp bead, a green lamp bead and a blue lamp bead. The light emitting diode is highly energy-efficient, has a long life and is rich in colors. The first lamp bead 1122 uses a light emitting diode, which can increase the richness of the output light beam, and is highly energy-efficient and does not consume much electricity.

[0066] In order to enable the light emitting component 112 to autonomously emit light beams of different colors corresponding to different working states of the range hood, in one example, Fig.12 As shown, the light emitting component 112 may include a second circuit board 1123, a plurality of second lamp beads 1124 and a detection component 1125. The second circuit board 1123 is fixedly connected to the shell 111. 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. 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 indicating the working state of the range hood, wherein the second circuit board 1123 is used to receive the electrical signal and control the plurality of second lamp beads 1124 to emit light to emit light beams of corresponding colors. In this example, the light emitting component 112 can autonomously identify the working status of the range hood, and correspondingly control the multiple second lamp beads 1124 to emit light beams of corresponding colors. The response speed is fast, and when the control device in the range hood fails, the light emitting component 112 can also emit light beams of corresponding colors based on the working status of the range hood to ensure the light emission reliability of the light emitting component 112, and then ensure the indication reliability of the indication device 1.

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

[0068] For another example, a range hood usually includes three gears of smoke intensities: low, medium and high. When the range hood operates in a high gear, the detection element 1125 detects the gear information of the range hood and sends an electrical signal to the second circuit board 1123 indicating that the range hood operates in a high gear. The second circuit board 1123 can control the multiple second lamp beads 1124 to emit light according to the electrical signal to emit a darker green color, 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 operates in a low gear, the second circuit board 1123 can control the multiple second lamp beads 1124 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 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 element 1125 can only detect the working state of the range hood, and then send the electrical signal indicating the working state of the range hood to the second circuit board 1123. The second circuit board 1123 can be provided with a processing program inside to process the received electrical signal to obtain the color of the light beam to be emitted, and correspondingly control the second lamp bead 1124 to emit light to emit a light beam of the color. The detection element 1125 can also have a processing function, that is, after the detection element 1125 detects the working state of the range hood, it will process the signal to obtain the color of the light beam to be emitted, and send the electrical signal indicating the color of the light beam to be emitted to the second circuit board 1123, so that the second circuit board 1123 can directly control the second lamp bead 1124 to emit light to emit a light beam of the corresponding color based on the electrical signal. This application does not make any specific restrictions on this.

[0070] In order to improve the detection reliability of the detection element 1125, the detection element 1125 can be arranged on the same plane of the second circuit board 1123 with multiple second lamp beads 1124, that is, the detection element 1125 faces the object to be detected. Assuming that the accuracy of the detection element 1125 is further improved, multiple detection elements 1125 can be set on the plane; assuming that the production cost is to be saved, only one detection element 1125 can be set in the middle position of the plane. The specific setting position and number of the detection element 1125 can be set according to actual needs, and this application does not make any specific restrictions.

[0071] Optionally, the detection element 1125 can be a sensor, a detector, an encoder or other device or circuit that can achieve the above-mentioned detection function, and this application does not make any specific limitation on this.

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

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

[0074] Optionally, the second lamp bead 1124 can adopt light-emitting diodes, specifically red lamp beads, green lamp beads and blue lamp beads. Light-emitting diodes are highly energy-efficient, have a long life and are rich in colors. The second lamp bead 1124 adopts light-emitting diodes, which can increase the richness of the output light beam, and is highly energy-efficient and does not consume much electricity.

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

[0076] Optionally, the material of the diffuser plate 113 may include any one of acrylic, polycarbonate or silicone. For example, the material of the diffuser plate 113 may be an acrylic diffuser plate, which has high light transmittance and high durability. When the diffuser plate 113 is an acrylic diffuser 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 diffuser plate 113 can also adopt other structures that can achieve the above functions, and the present application does not make any specific restrictions on this.

[0077] Here, it can be understood that since the lamp beads in the light-emitting component 112 will generate a certain amount of heat during operation, in order to avoid the problem of heat baking the diffusion plate 113, a certain gap can be set between the light-emitting component 112, the diffusion plate 113 and the light-transmitting cover 12, so that the heat generated by the lamp beads in the light-emitting component 112 during operation can be diffused through the gap, thereby avoiding the problem of heat baking the diffusion plate 113.

[0078] Optionally, a limiting and fixing structure can be set on the side wall of the first installation cavity 111A in the shell 111 to fix the diffuser plate 113 between the light output component 112 and the light transparent cover 12. The limiting and fixing structure can be a protrusion, an elastic member or other structure. The setting position of the limiting and fixing structure can also be set according to actual needs. This application does not make any specific restrictions on this.

[0079] In one example, the light-transmitting cover 12 may include a connecting plate 121, which cooperates with the shell 111 to form a closed first installation cavity 111A to protect the light-emitting component 112 inside the shell 111, thereby preventing the oil and gas mixture or water vapor in the kitchen from entering the first installation cavity 111A, causing the light-emitting component 112 to be damaged or cause light failure, thereby ensuring the light-emitting reliability of the light-emitting component 112, and further ensuring the indication reliability of the indicating device 1.

[0080] In order to further improve the protection effect, optionally, the light output module 11 and the light transparent cover 12 can be fixedly connected by ultrasound, that is, the connecting plate 121 and the shell 111 of the light output module 11 can be fixedly connected by ultrasound, so as to prevent the oil and gas mixture or water vapor in the kitchen from entering the first installation cavity 111A, causing the light output component 112 to be damaged and cause light failure, thereby further improving the light output reliability of the light output component 112, and thereby ensuring the indication reliability of the indicating device 1.

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

[0082] In an example, see Figure 1 to Figure 2 The indicating device 1 can be connected to the range hood body 2 on the side adjacent to the fume cavity 2A, that is, at this time, the light output module 11 in the indicating device 1 is located in the range hood body 2 on the side adjacent to the fume cavity 2A, and the light-transmitting cover 12 protrudes from the outside of the range hood body 2 on the side adjacent to the fume cavity 2A, so that the user can know the working status 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, and 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, so that the user can 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 the light emitting module 11 is set outside the range hood body 2, causing part of the emitted light beam to dissipate, thereby affecting the display effect of the light beam emitted by the light emitting module 11, that is, setting the light emitting module 11 inside the range hood body 2 ensures the light emission reliability of the light emitting module 11, thereby ensuring the indication reliability of the indicating device 1. At the same time, the light output module 11 is fixed in the range hood body 2, which improves the connection stability of the light cover 12 connected to the light output module 11 on the range hood body 2, and avoids the problem of the light cover 12 falling off due to external force affecting the indication effect, that is, the firmness between the indicating device 1 as a whole and the range hood body 2 is improved, thereby ensuring the indication reliability of the indicating device 1.

[0084] Optionally, the range hood provided in the present application may be wall-mounted, for example Figure 1 to Figure 2 As shown, the range hood may include two structures arranged at an angle, wherein one part of the range hood structure is fixed on the wall of the target scene, and the other part of the range hood structure is provided with a fume chamber 2A. The range hood may also be a top-suction, side-suction or other type of range hood, and the present application does not impose any specific restrictions on this.

[0085] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0086] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in 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 for emitting 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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