Range hood
Through the design of a thin lower cavity and multi-port structure, combined with air volume adjustment and the use of the controller, the problems of large thickness and poor suction effect of the range hood are solved, and the effect of beautiful and efficient smoking of smoke is achieved.
Patent Information
- Application Number
- CN202420155774.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-22
AI Technical Summary
The large side inclination angle of existing range hoods leads to a large thickness, which is bulky and unsightly, giving users a sense of depression, and at the same time, the smoke smoking effect is not good.
Design a range hood, adopting a thin lower cavity and multi-port structure, through the cooperation of the upper and lower cigarette inlets, the upper and lower suction is achieved, the suction force is increased, and the smoke escape is reduced; at the same time, the air volume adjustment mechanism is used to adjust the air volume. The range hood controller adjusts the fan power according to the stove firepower and flue gas concentration to optimize the suction effect.
It realizes the reduction of the range hood thickness and reduces the feeling of depression, while improving the ability to smoke smoke, ensuring that the range hood is both beautiful and efficient.
Smart Images
Figure CN222164919U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art
[0002] At present, the side inclination angle of the range hood is usually relatively large, which makes the range hood thick, bulky and unsightly, giving the user a sense of oppression. Utility Model Content
[0003] The utility model aims to provide a range hood which can not only play an anti-suppression effect but also improve the smoke extraction effect of the range hood.
[0004] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions:
[0005] The utility model provides a range hood, which comprises: a fan box and a lower cavity, the top of the lower cavity is connected to the fan box; the lower cavity has a front panel and a rear panel that are relatively arranged and do not exceed a first preset spacing distance, and a left panel and a right panel that are relatively arranged and do not exceed a second preset spacing distance, one end of the front panel is connected to the left panel, the other end of the front panel is connected to the right panel, one end of the rear panel is connected to the left panel, and the other end of the rear panel is connected to the right panel; the front panel has an upper smoke inlet and a lower smoke inlet that are spaced apart, the lower edge of the upper smoke inlet is higher than the upper edge of the lower smoke inlet; the area of the upper smoke inlet is larger than the area of the lower smoke inlet.
[0006] In a preferred embodiment, the range hood further includes a range hood controller, the fan box has a fan, and the range hood controller is used to obtain a signal representing the fire power or smoke concentration of the stove. When the signal increases, the range hood controller can control the power of the fan to increase.
[0007] In a preferred embodiment, the area of the lower smoke inlet is not greater than a first preset area value, and the maximum value of the first preset area value is 0.05 m2.
[0008] In a preferred embodiment, the ratio of the area of the lower smoke inlet to the total area of the front panel of the lower cavity is not greater than a first preset ratio value.
[0009] In a preferred embodiment, the area of the upper smoke inlet is not less than a second preset area value; the minimum value of the second preset area value is 0.07 m2, and / or the second preset area value is greater than the first preset area value.
[0010] In a preferred embodiment, the ratio of the area of the upper smoke inlet to the total area of the front panel of the lower cavity is not less than a second preset ratio value.
[0011] In a preferred embodiment, the upper edge of the upper smoke inlet is close to or located at the top of the lower cavity, the lower edge of the lower smoke inlet is close to or located at the bottom of the lower cavity, and the front panel of the lower cavity also has a smoke guide plate, and along the flow direction of the smoke, the smoke guide plate is arranged between the lower smoke inlet and the upper smoke inlet.
[0012] In a preferred embodiment, the ratio of the area of the smoke guide plate to the total area of the front panel of the lower cavity is not less than a third preset ratio value.
[0013] In a preferred embodiment, the lower cavity is a thin lower cavity, the first preset spacing distance is between 40 mm and 160 mm, and the second preset spacing distance is between 890 mm and 900 mm.
[0014] In a preferred embodiment, the front panel of the thin lower cavity is an inclined panel at a preset angle to the vertical direction, the preset angle is not less than 8° and not more than 20°, and the upper smoke inlet and the lower smoke inlet are arranged on the inclined panel.
[0015] In a preferred embodiment, the lower cavity also has an air volume regulating mechanism, which is close to or located at the upper smoke inlet and is used to at least change the air volume entering the upper smoke inlet; the air volume regulating mechanism is a smoke collecting plate, and the smoke collecting plate can be rotatably connected to the lower cavity up and down.
[0016] In a preferred embodiment, when the smoke collecting plate is located at the smoke collecting position, the angle between the smoke collecting plate and the front panel of the lower cavity is not greater than a first preset angle value and not less than a second preset angle value.
[0017] In a preferred embodiment, when the smoke collecting plate is located at the smoke collecting position, the projection area of the smoke collecting plate on the burner head is not less than 2 / 5 of the area of the burner head.
[0018] In a preferred embodiment, the top is connected to the left side panel, the right side panel, the front panel and the rear panel, and the top has a protruding portion extending relative to the front panel, and the protruding portion is provided with a top lighting lamp for downward lighting.
[0019] In a preferred embodiment, when the smoke collecting plate is located at the smoke collecting position, the projection area of the smoke collecting plate on the top lighting lamp is not less than 2 / 3 of the area of the top lighting lamp.
[0020] In a preferred embodiment, when the smoke collecting plate is located at the smoke collecting position, the area of the projection of the smoke collecting plate on the top lighting lamp is no more than 4 / 5 of the area of the top lighting lamp.
[0021] In a preferred embodiment, the top is connected to the left panel, the right panel, the front panel, and the rear panel, and the top has an extending portion extending relative to the front panel, and the lower surface of the extending portion has a luminous area that can form a preset pattern; the range hood or the lower cavity has a light reflecting plate, and the position of the light reflecting plate at least includes a reflection position, and when the light reflecting plate is located at the reflection position, at least a portion of the light reflecting plate is located below the top to reflect the preset pattern formed by the luminous area.
[0022] In a preferred embodiment, the light reflecting plate is a smoke collecting plate, which is arranged on the front panel, and has a relative inner surface and an outer surface, and the inner surface is closer to the upper smoke inlet than the outer surface. When the smoke collecting plate is located in the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.
[0023] The characteristics and advantages of this utility model are:
[0024] The fan box provides suction power, and smoke can enter the lower cavity through the upper smoke inlet and the lower smoke inlet, and continue to flow to the fan box. The distance between the front panel and the rear panel does not exceed the first preset spacing distance, so that the overall thickness of the thin lower cavity is small, which is conducive to reducing the sense of oppression brought to the user. The area of the upper smoke inlet is larger than that of the lower smoke inlet, so that the area of the lower smoke inlet is small and the area of the upper smoke inlet is large. The upper smoke inlet and the lower smoke inlet are both located on the front panel. Under the action of the suction power provided by the fan box, the suction force generated by the upper smoke inlet is roughly parallel to the direction of the suction force generated by the lower smoke inlet, and since the area of the lower smoke inlet is smaller, the lower smoke inlet can generate a larger pressure, which is convenient for generating a larger pulling force close to the source of oil fume generation, so as to draw undiffused smoke and reduce smoke diffusion from close to the source of oil fume generation; and the upper smoke inlet has a larger area and is far away from the source of oil fume compared to the lower smoke inlet, which is convenient for gathering the diffused smoke to reduce smoke escape. The upper smoke inlet and the lower smoke inlet arranged at intervals cooperate with each other to achieve upper gathering and lower suction. Furthermore, the distance between the left side plate and the right side plate is not less than a second preset spacing distance, so that the distance between the left side plate and the right side plate is large enough, that is, the size of the thin lower cavity in the left and right directions is large enough, so that the flow cross-section of the smoke flowing upward in the lower cavity is large enough, so that the range hood can generate a stronger smoke extraction ability when the overall thickness of the lower cavity is small, thereby ensuring that the range hood can not only play an anti-suppression effect, but also improve the smoke extraction effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 A front view of the range hood provided by the utility model without the smoke collecting plate;
[0027] Figure 2 An axonometric view of an embodiment of the range hood provided by the utility model;
[0028] Figure 3 A side view of the range hood smoke collecting plate provided by the utility model when it is in the smoke collecting position;
[0029] Figure 4 An axonometric view of another embodiment of the range hood provided by the utility model;
[0030] Figure 5 This is a schematic diagram of the smoke stove system provided by the utility model.
[0031] Description of Figure Numbers:
[0032] 10. Fan box;
[0033] 20, lower cavity; 201, upper smoke inlet; 202, lower smoke inlet;
[0034] 21. front panel; 211. guide plate; 22. rear panel;
[0035] 23. Left side panel; 24. Right side panel;
[0036] 25. Top; 251. Lower surface; 26. Top lighting;
[0037] 30. Air volume adjustment mechanism; 31. Smoke collecting plate;
[0038] 50. Luminous area; 51. Preset pattern;
[0039] 60. Cooker; 61. Burner. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0041] The utility model provides a range hood, such as Figure 1 and Figure 2 As shown, the range hood comprises: a fan box 10 and a lower cavity 20, and the top of the lower cavity 20 is connected to the fan box 10;
[0042] The lower cavity 20 comprises a front panel 21 and a rear panel 22 which are arranged relatively to each other and do not exceed a first preset spacing distance, and a left panel 23 and a right panel 24 which are arranged relatively to each other and do not exceed a second preset spacing distance. One end of the front panel 21 is connected to the left panel 23, and the other end of the front panel 21 is connected to the right panel 24. One end of the rear panel 22 is connected to the left panel 23, and one end of the rear panel 22 is connected to the right panel 24. The front panel 21 comprises an upper smoke inlet 201 and a lower smoke inlet 202 which are arranged at intervals. The lower edge of the upper smoke inlet 201 is higher than the upper edge of the lower smoke inlet 202. The area of the upper smoke inlet 201 is larger than the area of the lower smoke inlet 202.
[0043] The fan box 10 provides suction power, and smoke can enter the lower cavity 20 through the upper smoke inlet 201 and the lower smoke inlet 202, and continue to flow to the fan box 10. The distance between the front panel 21 and the rear panel 22 does not exceed the first preset spacing distance, so that the overall thickness of the thin lower cavity 20 is small, which is conducive to reducing the sense of oppression brought to the user. The area of the upper smoke inlet 201 is larger than the area of the lower smoke inlet 202, so that the area of the lower smoke inlet 202 is small and the area of the upper smoke inlet 201 is large. The upper smoke inlet 201 and the lower smoke inlet 202 are both located on the front panel 21. Under the action of the suction power provided by the fan box 10, the suction force generated by the upper smoke inlet 201 is roughly parallel to the direction of the suction force generated by the lower smoke inlet 202. Since the area of the lower smoke inlet 202 is smaller, the lower smoke inlet 202 can generate a larger pressure, which is convenient for generating a larger pulling force close to the source of oil smoke generation, so as to draw undiffused smoke and reduce smoke diffusion from close to the source of oil smoke generation; and the upper smoke inlet 201 has a larger area and is farther away from the source of oil smoke than the lower smoke inlet 202, so it is convenient to gather the diffused smoke to reduce smoke escape. The upper smoke inlet 201 and the lower smoke inlet 202 arranged at intervals cooperate with each other to achieve upper gathering and lower suction. Furthermore, the distance between the left side plate 23 and the right side plate 24 is not less than the second preset spacing distance, so that the distance between the left side plate 23 and the right side plate 24 is large enough, that is, the size of the thin lower cavity 20 in the left and right directions is large enough, so that the flow cross-section of the smoke flowing upward in the lower cavity 20 is large enough, so that the range hood can generate a stronger smoke extraction ability when the overall thickness of the lower cavity 20 is small, thereby ensuring that the range hood can not only play an anti-suppression effect, but also improve the smoke extraction effect of the range hood.
[0044] The front panel 21 and the rear panel 22 are connected to the left panel 23 and the right panel 24 respectively, and there are many ways to connect them, for example: they can be an integrated structure; they can also be a split structure, and then connected by screws, welding, etc., or abutted together.
[0045] In one embodiment, the range hood further includes a range hood controller. A fan is provided in the fan box 10. The range hood controller is used to obtain a signal representing the fire power or smoke concentration of the stove. When the signal increases, the range hood controller can control the fan power to increase.
[0046] The size of the signal obtained by the range hood controller refers to the size of the firepower of the stove or the size of the smoke concentration. When the firepower or smoke concentration of the stove increases, the signal obtained by the range hood controller also increases. When the firepower or smoke concentration of the stove is small or zero, the fan is controlled to work at a smaller power or shut down, which can reduce noise and save energy while ensuring the smoke extraction effect. When the firepower or smoke concentration of the stove increases, the signal obtained by the range hood controller increases accordingly, controls the fan to increase power, increases the total air volume provided by the fan, enhances the smoke extraction ability of the range hood, and prevents smoke from escaping. This embodiment can adjust the power of the fan according to the firepower or smoke concentration of the stove, give full play to the effect of the upper smoke inlet 201 and the lower smoke inlet 202 cooperating to perform upper and lower suction, ensure the smoke extraction effect, and adapt to a variety of scenarios to achieve intelligent smoke control and energy saving and noise reduction.
[0047] When the signal increases, the range hood controller can control the power of the fan to increase. There may be multiple specific control methods. For example, in one embodiment, the range hood controller controls the power of the fan to increase continuously as the signal increases. In another embodiment, when the signal increases to a certain level, the range hood controller controls the power of the fan to increase to a corresponding level. When the signal changes between two adjacent levels, the range hood controller controls the power of the fan to remain unchanged.
[0048] In one embodiment, the area of the lower smoke inlet 202 is not greater than the first preset area value, and the maximum value of the first preset area value is 0.05 square meters. By designing the area of the lower smoke inlet 202 to be relatively small, it is helpful to increase the pulling force of the lower smoke inlet 202, so that when the air volume entering the lower smoke inlet 202 remains unchanged, the lower smoke inlet 202 can generate a relatively large pulling force, which is helpful to pull the unspread smoke near the stove and minimize the diffusion of smoke.
[0049] In one embodiment, the ratio of the area of the lower smoke inlet 202 to the total area of the front panel 21 of the lower cavity 20 is not greater than the first preset ratio value, so that the lower smoke inlet 202 can generate a larger pulling force on the one hand, and the upper smoke inlet 201 and the portion of the front panel 21 between the upper smoke inlet 201 and the lower smoke inlet 202 have a larger area on the other hand, which is conducive to the upper smoke inlet 201 to gather smoke, and the portion of the front panel 21 between the upper smoke inlet 201 and the lower smoke inlet 202 to guide the rising smoke, so that the rising smoke is sucked into the upper smoke inlet 201, giving full play to the effect of upper gathering and lower suction, and reducing smoke escape. Preferably, the first preset ratio value is equal to 0.15.
[0050] Furthermore, the area of the upper smoke inlet 201 is not less than a second preset area value; the minimum value of the second preset area value is 0.07 m2, and / or the second preset area value is greater than the first preset area value, to ensure that the upper smoke inlet 201 has a sufficient area to facilitate the gathering of diffused smoke to reduce smoke escape; at the same time, it is conducive to giving full play to the effect of the upper smoke inlet 201 and the lower smoke inlet 202 cooperating to perform the upper gathering and lower suction, thereby improving the smoke extraction effect of the range hood.
[0051] In one embodiment, the ratio of the area of the upper smoke inlet 201 to the total area of the front panel 21 of the lower cavity 20 is not less than the second preset ratio value, so that the upper smoke inlet 201 has a larger area, which is conducive to the upper smoke inlet 201 to collect smoke and ensure that the smoke rising along the front panel 21 is sucked into the upper smoke inlet 201. Preferably, the second preset ratio value is equal to 0.2.
[0052] Furthermore, the upper edge of the upper smoke inlet 201 is close to or located at the top of the lower cavity 20, and the lower edge of the lower smoke inlet 202 is close to or located at the bottom of the lower cavity 20. The front panel 21 of the lower cavity 20 also has a smoke guide plate. Along the flow direction of the smoke, the smoke guide plate is arranged between the lower smoke inlet 202 and the upper smoke inlet 201, so that the lower smoke inlet 202 is located at a lower position to facilitate the extraction of the rising smoke as early as possible, which is beneficial for the lower smoke inlet 202 to concentrate the extraction and guidance of the smoke before the smoke diffuses; the upper smoke inlet 201 is located at an upper position, so that the guide plate 211 has a sufficiently high height to facilitate the diversion of the rising smoke. Under the guiding effect of the guide plate 211, part of the smoke rises along the guide plate 211 and is sucked into the upper smoke inlet 201, which is beneficial for the upper smoke inlet 201 to gather the diffused smoke, give full play to the effect of upper gathering and lower suction, and reduce smoke escape.
[0053] The smoke guide plate can be an independent plate arranged on the front surface of the front panel 21, and the smoke guide plate and the front panel 21 can also be an integrated structure, that is, the front surface of the front panel 21 guides smoke, and the portion of the front panel 21 located between the lower smoke inlet 202 and the upper smoke inlet 201 serves as the smoke guide plate. In one embodiment, the ratio of the area of the smoke guide plate to the total area of the front panel 21 of the lower cavity 20 is not less than the third preset ratio value, so as to ensure that the guide plate 211 has sufficient area to guide the rising smoke and guide the smoke to flow toward the upper smoke inlet 201. Preferably, the third preset ratio value is equal to 0.3. Further, the ratio of the area of the smoke guide plate to the total area of the front panel 21 of the lower cavity 20 is not greater than 0.65, so as to reserve enough area on the front panel 21 to set the upper smoke inlet 201 and ensure the smoke collection effect of the upper smoke inlet 201.
[0054] The first preset spacing distance is the minimum distance between the front panel 21 and the rear panel 22. When the front panel 21 tilts forward from bottom to top, the minimum distance between the front panel 21 and the rear panel 22 is located at the bottom. In one embodiment, the lower cavity 20 is a thin lower cavity 20, and the first preset spacing distance is between 40 mm and 160 mm, that is, the first preset spacing distance can be any value between 40 mm and 160 mm, for example, the first preset spacing distance can be 40 mm, 42 mm, 50 mm, 60 mm, 65 mm, 80 mm, 100 mm, 120 mm, 151 mm or 160 mm, etc.; and the second preset spacing distance is between 890 mm and 900 mm, that is, the second preset spacing distance can be between 890 mm and 900 mm. Any value, for example, the second preset spacing distance can be 890mm, 891mm, 896mm, 898mm or 900mm, etc., so that the overall thickness of the thin lower cavity 20 is smaller, reducing the sense of oppression; and the distance between the left panel 23 and the right panel 24 is large enough to ensure that there is a larger flow cross-section in the lower cavity 20 for the smoke to flow upward, and increase the coverage range of the lower cavity 20 in the left and right directions, so that the range hood can produce a stronger ability to extract smoke when the overall thickness of the lower cavity 20 is small, taking into account both the anti-oppression effect and the smoke extraction effect.
[0055] Furthermore, the front panel 21 of the thin lower cavity 20 is an inclined panel at a preset angle to the vertical direction, the preset angle is not less than 8° and not more than 20°, the upper smoke inlet 201 and the lower smoke inlet 202 are arranged on the inclined panel, so as to ensure that the top and the bottom of the inner cavity of the thin lower cavity 20 have a sufficiently large flow cross section for the smoke to flow upward, and the smoke gradually diffuses when moving upward, such as Figure 2 and Figure 5As shown, the upper smoke inlet 201 is located in front of the lower smoke inlet 202. The upper smoke inlet 201 can gather the diffused smoke, and the lower smoke inlet 202 is close to the source of oil smoke to draw the un-diffused smoke. The upper smoke inlet 201 cooperates with the lower smoke inlet 202 to gather the smoke from above and draw it from below, which is beneficial to ensure the smoking effect.
[0056] In one embodiment, the lower cavity 20 further has an air volume regulating mechanism 30 , which is close to or located at the upper smoke inlet 201 and is used to at least change the air volume entering the upper smoke inlet 201 .
[0057] The air volume regulating mechanism 30 can regulate the air volume entering the upper smoke inlet 201, and further regulate the ratio of the air volume entering the upper smoke inlet 201 to the air volume entering the lower smoke inlet 202, so as to adapt to the working state or smoke concentration state of the stove 60, give full play to the effect of upper collection and lower suction, and optimize the effect of extracting smoke. For example, when stir-frying is performed, the fire power of the stove 60 is very high, the smoke concentration is also very high, and a large amount of smoke rises rapidly. The air volume regulating mechanism 30 can be switched to the third position, and the air volume entering the upper smoke inlet 201 is increased, thereby enhancing the smoke collection effect. In some scenarios, the smoke can be collected without increasing the noise of the range hood at least. , achieving efficient extraction of smoke; when cooking, the firepower of the cooker 60 is small, the smoke concentration is small, the air volume adjustment mechanism 30 can be switched to the second position, the smoke collection effect is relatively weakened, the lower smoke inlet 202 can draw and absorb the smoke before it diffuses, and a small part of the diffused smoke is collected and absorbed by the upper smoke inlet 201. In other scenarios, the effect of extracting smoke can be guaranteed at the same time without increasing the noise of the range hood at least; when the firepower is very small or the cooker 60 is not working, the smoke concentration is very small or there is no smoke concentration, the air volume adjustment mechanism 30 can be switched to the first position, and the upper smoke inlet 201 is closed. Therefore, the range hood provided by the utility model can intelligently adjust the air volume at the upper smoke inlet 201 according to different usage scenarios to take into account good oil smoke extraction effect and noise reduction effect.
[0058] The air volume regulating mechanism 30 is a smoke collecting plate 31, which is connected to the lower cavity 20 so as to be rotatable up and down. The smoke collecting plate 31 can block part of the upper smoke inlet 201 to change the air inlet area of the upper smoke inlet 201, thereby realizing the control of the air volume entering the upper smoke inlet 201 by switching the smoke collecting plate 31 to different positions; and the smoke collecting plate 31 can block the rising smoke, has the effect of collecting smoke, and guides the smoke flow to the upper smoke inlet 201.
[0059] Furthermore, if Figure 3As shown, when the smoke collecting plate 31 is in the smoke collecting position, the angle M between the smoke collecting plate 31 and the front panel 21 of the lower cavity 20 is not greater than the first preset angle value and not less than the second preset angle value, so that part of the air volume enters through the upper smoke inlet 201, and part of the air volume enters through the lower smoke inlet 202. The lower smoke inlet 202 can draw and absorb the smoke before it diffuses, ensuring that the upper smoke inlet 201 has a strong smoke collecting ability, and the smoke that is not absorbed by the lower smoke inlet 202 and diffuses can be collected and absorbed by the upper smoke inlet 201, avoiding the escape of diffused smoke, and realizing efficient smoke extraction. Preferably, the first preset angle value is equal to 40°, and the second preset angle value is equal to 65°.
[0060] In one embodiment, when the smoke collecting plate 31 is in the smoke collecting position, the projected area of the smoke collecting plate 31 on the burner head 61 is not less than 2 / 5 of the area of the burner head 61, so that the smoke collecting plate 31 and the burner head 61 have a sufficiently large overlapping area when projected in the up and down directions, and the smoke flows upward from the burner head 61 and the cookware thereon, which is beneficial for the smoke collecting plate 31 to block the smoke from rising, and, under the action of the suction force of the upper smoke inlet 201, the lower side of the smoke collecting plate 31 generates an airflow toward the upper smoke inlet 201, and the airflow carries the smoke into the upper smoke inlet 201, which is beneficial for producing a better smoke collecting effect.
[0061] Furthermore, the top 25 is connected to the left side panel 23, the right side panel 24, the front panel 21, and the rear panel. The top 25 has an extended portion relative to the front panel 21. The extended portion is provided with a top lighting lamp 26 for downward lighting. The light generated by the top lighting lamp 26 irradiates downward to illuminate the stove, so that the user can clearly see the state of the food in the cooker when cooking.
[0062] like Figure 3 As shown, the smoke collecting plate 31 is located below the top lighting lamp 26 to block smoke. Preferably, when the smoke collecting plate 31 is located at the smoke collecting position, the projection area of the smoke collecting plate 31 on the top lighting lamp 26 is not less than 2 / 3 of the area of the top lighting lamp 26, so that the smoke collecting plate 31 and the top lighting lamp 26 have a sufficiently large overlap area when projected in the up and down directions, so as to effectively prevent smoke from moving toward the top lighting lamp 26 and prevent the top lighting lamp 26 from being polluted by smoke.
[0063] Furthermore, when the smoke collecting plate 31 is in the smoke collecting position, the projection area of the smoke collecting plate 31 on the top lighting lamp 26 is no more than 4 / 5 of the area of the top lighting lamp 26, to ensure that there is enough light that is not blocked by the smoke collecting plate 31 and can be transmitted downward to the stove, thereby preventing the top lighting lamp 26 from being contaminated by smoke and taking into account the lighting effect.
[0064] In one embodiment, if Figure 4As shown, the top is connected to the left side panel, the right side panel, the front panel, and the rear panel. The top has an extended portion extending relative to the front panel, and the lower surface 251 of the extended portion has a light-emitting area 50 that can form a preset pattern 51; the range hood or the lower cavity 20 has a light-reflecting plate, and the position of the light-reflecting plate at least includes a reflection position. When the light-reflecting plate is located at the reflection position, at least part of the light-reflecting plate is located below the top 25 to reflect the preset pattern 51 formed by the light-emitting area 50. When the user is in front of the lower cavity 20 during cooking, the light emitted by the light-emitting area 50 on the lower surface 251 of the top 25 can form a preset pattern 51. The preset pattern 51 can be a pattern with a preset shape after patterning the light emitted by the light-emitting element, such as a pattern formed by the light of the light-emitting element passing through the silk-screen layer, which is similar to a painting to be shown to the user; the preset pattern 51 can also be formed by changing the light-emitting element, such as making the light-emitting element itself into a preset shape, and the light emitted by the light-emitting element forms the preset pattern 51. The light emitted from the luminous area 50 propagates downward, and after being reflected by the smoke collecting plate 31 located at the reflecting position, can be transmitted to the user, so that the user can see the preset pattern 51 from the smoke collecting plate 31. The preset pattern 51 can create a sense of atmosphere on the smoke collecting plate 31. The preset atmosphere pattern such as that formed by the luminous area 50 is presented to the user through the smoke collecting plate 31, so as to create a lighting atmosphere in front of the user's field of vision.
[0065] The setting position of the light reflection plate is explained as follows:
[0066] In different embodiments, the light reflecting plate can be disposed on the range hood or the lower cavity 20. When the light reflecting plate is disposed on the range hood, the light reflecting plate can be disposed on the fan box 10 or other components of the range hood, for example: one end of the light reflecting plate is mounted on the fan box 10, at least part of the light reflecting plate can extend below the top 25 and be located in front of the front panel 21, and can reflect the light emitted by the light emitting area 50, and one end of the light reflecting plate can be fixed to the fan box 10, or can be rotatably mounted on the fan box 10.
[0067] When the light reflecting plate is set in the lower cavity 20, the light reflecting plate can be set on the top 25 or on the front panel 21. For example, one end of the light reflecting plate can be installed on the top 25 through the mounting structure, and one end of the light reflecting plate can also be installed on the front panel 21. The specific position of the light reflecting plate is not limited.
[0068] When the light reflecting plate is set on the top 25, in one embodiment, the light reflecting plate can be set close to the top 25 or be a part of the top 25 or be set at an angle to the top 25, and / or the light reflecting plate can move to the space below the top 25 and move to the reflecting position. Specifically, the light reflecting plate is rotatably set on the top 25, for example, the light reflecting plate can be rotated from the top 25 to the front panel 21 and rotated to the reflecting position. More specifically, the upper end of the light reflecting plate can be rotatably connected to the top 25 via a rotating shaft, and the rotating shaft is installed on the top 25. When the light reflecting plate is in the initial position, the light reflecting plate is close to the top 25 or is a part of the top 25, and the light reflecting plate can be rotated from the initial position to the reflecting position around the rotating shaft.
[0069] When the light reflecting plate is disposed on the front panel 21, in one embodiment, the light reflecting plate may be at least a part of the front panel 21, and may be movable to a reflecting position in a direction away from the front panel 21. For example, the light reflecting plate may have two positions. When the light reflecting plate is located at one position, the light reflecting plate may constitute a part of the front panel 21, and the light reflecting plate may also be movable to a reflecting position in a direction away from the front panel 21 from the aforementioned position. In another embodiment, the light reflecting plate may also be disposed close to the front panel 21 or at an angle to the front panel 21. When the light reflecting plate is disposed close to the front panel 21, specifically, one end of the light reflecting plate may be rotatably mounted on the front panel 21 or other components of the lower cavity 20; when the light reflecting plate is disposed at an angle to the front panel 21, one end of the light reflecting plate may be rotatably mounted on the front panel 21 or other components of the lower cavity 20, or may be fixed at the reflecting position.
[0070] Furthermore, the light reflection plate is a smoke collecting plate 31, which is arranged on the front panel. The smoke collecting plate 31 has an inner surface and an outer surface relative to each other, and the inner surface is closer to the upper smoke inlet 201 than the outer surface. When the smoke collecting plate 31 is located at the reflection position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern 51 formed by the light-emitting area 50. On the one hand, the smoke collecting plate 31 collects smoke and guides the oil smoke to flow toward the upper smoke inlet 201; on the other hand, as a light reflection plate, the user can see the preset pattern 51 on its outer surface. That is to say, there is no need to set up a separate additional light reflection plate. The outer surface of the smoke collecting plate 31 of the range hood can be reused as a light reflection plate. On the basis of ensuring the oil fume absorption effect through the smoke collecting plate 31, the reflection of the preset pattern 51 such as the atmosphere pattern can be cleverly achieved. In order to achieve smoke collection, the smoke collecting plate 31 is extended forward relative to the lower cavity 20, which is relatively abrupt for the user's perception. The preset pattern 51 is emitted to the smoke collecting plate 31 by the light-emitting area 50, creating an atmosphere with a certain visual depth, which is conducive to improving the oppressive perception of the abrupt setting of the smoke collecting plate 31 to the user. When the smoke collecting plate 31 is in the reflection position, the upper surface of the smoke collecting plate 31 is its outer surface, and the lower surface of the smoke collecting plate 31 is its inner surface. In this embodiment, the smoke collecting plate 31 can be arranged near the upper edge of the upper smoke inlet 201 or arranged at the upper edge of the upper smoke inlet 201, and the smoke collecting plate 31 can be fixed relative to the front panel, or can be movably arranged on the front panel.
[0071] The light-emitting area 50 in the present invention can form a preset pattern 51, which is different from an illuminating lamp, in which the light of the light-emitting element is not formed by patterning and can only play a role of lighting.
[0072] In one embodiment, the top 25 has a light-emitting element and a preset pattern layer. Along the propagation direction of the light, the light emitted by the light-emitting element passes through the preset pattern layer to form a light-emitting area 50 with a preset pattern 51 on the lower surface 251 of the top 25. The preset pattern layer presets a light-transmitting area with a pattern, so that the light emitted by the light-emitting element is partially blocked by the preset pattern layer, and partially can pass through the preset pattern layer, so that the light emitted by the light-emitting area 50 forms a preset pattern 51. The preset pattern layer can be preset with a light-transmitting area with a pattern by silk screen printing, color spraying or film pasting, so that the light emitted by the light-emitting area 50 forms a preset pattern 51. The preset pattern layer includes a silk screen layer and / or a color spraying layer and / or a film pasting layer. Specifically, the preset pattern layer can include one of a silk screen layer, a color spraying layer, and a film pasting layer. The preset pattern layer can also be a combination of at least two of the silk screen layer, the color spraying layer, and the film pasting layer.
[0073] In one embodiment, a light-emitting element is provided in the top 25, and the top 25 has a preset pattern layer, and the preset pattern layer is provided with a plurality of light point light-transmitting areas and / or a plurality of light spot light-transmitting areas and / or a plurality of light segment light-transmitting areas arranged at intervals, and the preset pattern 51 is a plurality of light points and / or a plurality of light spots and / or a plurality of light segments arranged at intervals. After the light emitted by the light-emitting element passes through the light point light-transmitting area, a light point can be formed; after the light emitted by the light-emitting element passes through the light spot light-transmitting area, a light spot can be formed; after the light emitted by the light-emitting element passes through the light spot light-transmitting area, a light spot can be formed; after the light emitted by the light-emitting element passes through the light segment light-transmitting area, a light segment can be formed. Multiple light points and / or multiple light spots and / or multiple light segments cooperate to form a preset pattern 51 with a sense of atmosphere, for example: light points or light spots of different sizes can form a depth of field, creating an atmosphere with a certain visual depth.
[0074] In another embodiment, a light-emitting element having a preset pattern 51 is disposed in the top 25, and the light emitted by the light-emitting element having the preset pattern 51 forms the preset pattern 51 in the light-emitting area 50. For example, the light-emitting element may include one or more lamps, a single lamp may have a preset shape, or a plurality of lamps may be combined to form the preset pattern 51. For example, a plurality of distributed point light sources are disposed in the top 25, and these lamps together form the preset pattern 51, and the light emitted by these lamps is formed just in the light-emitting area 50. In a specific embodiment, the preset pattern 51 is a cloud, and a plurality of lamps are distributed in a cloud shape, thereby forming a cloud pattern in the light-emitting area 50.
[0075] In one embodiment, the light emitting element itself can display the preset pattern 51, for example, the light emitting element can be a digital tube, which is used to display the preset pattern 51. The preset pattern 51 can include numbers, which can reflect the working status information such as the air volume or time of the range hood. The light emitting element can also be a whole display screen, specifically an LED display screen or a liquid crystal display screen, etc. The display screen can display patterns, videos or texts, etc., and the content displayed on the display screen can be displayed after being reflected by the light reflection plate.
[0076] The above are only several embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.
Claims
1. A range hood, It is characterized in that The range hood comprises: a fan box and a lower cavity, wherein the top of the lower cavity is connected to the fan box; The lower cavity comprises a front panel and a rear panel which are arranged opposite to each other and have a spacing distance not exceeding a first preset spacing distance, and a left panel and a right panel which are arranged opposite to each other and have a spacing distance not less than a second preset spacing distance, one end of the front panel is connected to the left panel, the other end of the front panel is connected to the right panel, one end of the rear panel is connected to the left panel, and the other end of the rear panel is connected to the right panel; The front panel has an upper smoke inlet and a lower smoke inlet which are spaced apart from each other, and the lower edge of the upper smoke inlet is higher than the upper edge of the lower smoke inlet; The area of the upper smoke inlet is greater than the area of the lower smoke inlet.
2. The range hood according to claim 1, It is characterized in that The range hood also includes a range hood controller. The fan box has a fan inside. The range hood controller is used to obtain a signal representing the fire power or smoke concentration of the stove. When the signal increases, the range hood controller can control the fan to increase power.
3. The range hood according to claim 1, It is characterized in that The area of the lower smoke inlet is not greater than a first preset area value, The maximum value of the first preset area value is 0.05 m2.
4. The range hood according to claim 1, It is characterized in that The ratio of the area of the lower smoke inlet to the total area of the front panel of the lower cavity is not greater than a first preset ratio value.
5. The range hood according to claim 3, It is characterized in that The area of the upper smoke inlet is not less than a second preset area value; The minimum value of the second preset area value is 0.07 m2, and / or the second preset area value is greater than the first preset area value.
6. The range hood according to claim 3, It is characterized in that The ratio of the area of the upper smoke inlet to the total area of the front panel of the lower cavity is not less than a second preset ratio value.
7. The range hood according to claim 5 or 6, It is characterized in that The upper edge of the upper smoke inlet is close to or located at the top of the lower cavity, the lower edge of the lower smoke inlet is close to or located at the bottom of the lower cavity, and the front panel of the lower cavity also has a smoke guide plate, and along the flow direction of the smoke, the smoke guide plate is arranged between the lower smoke inlet and the upper smoke inlet.
8. The range hood according to claim 7, It is characterized in that The ratio of the area of the smoke guide plate to the total area of the front panel of the lower cavity is not less than a third preset ratio value.
9. The range hood according to claim 1, It is characterized in that The lower cavity is a thin lower cavity, the first preset spacing distance is between 40mm-160mm, and the second preset spacing distance is between 890mm-900mm.
10. The range hood according to claim 9, It is characterized in that The front panel of the thin lower cavity is an inclined panel with a preset angle to the vertical direction, and the preset angle is not less than 8° and not more than 20°. The upper smoke inlet and the lower smoke inlet are arranged on the inclined panel.
11. The range hood according to claim 1, It is characterized in that The lower cavity further comprises an air volume regulating mechanism, which is close to or located at the upper smoke inlet and is used to at least change the air volume entering the upper smoke inlet; The air volume regulating mechanism is a smoke collecting plate, and the smoke collecting plate is connected to the lower cavity in a manner that it can rotate up and down.
12. The range hood according to claim 11, It is characterized in that When the smoke collecting plate is located at the smoke collecting position, the angle between the smoke collecting plate and the front panel of the lower cavity is not greater than a first preset angle value and not less than a second preset angle value.
13. The range hood according to claim 11, It is characterized in that When the smoke collecting plate is located at the smoke collecting position, the projection area of the smoke collecting plate on the burner head is not less than 2 / 5 of the area of the burner head.
14. The range hood according to claim 11, It is characterized in that The top is connected to the left side plate, the right side plate, the front panel and the rear panel. The top has a protruding portion extending relative to the front panel. The protruding portion is provided with a top lighting lamp for downward lighting.
15. The range hood according to claim 14, It is characterized in that When the smoke collecting plate is located at the smoke collecting position, the projection area of the smoke collecting plate on the top lighting lamp is not less than 2 / 3 of the area of the top lighting lamp.
16. The range hood according to claim 15, It is characterized in that When the smoke collecting plate is located at the smoke collecting position, the projection area of the smoke collecting plate on the top lighting lamp is no more than 4 / 5 of the area of the top lighting lamp.
17. The range hood according to claim 1, It is characterized in that The top is connected to the left side panel, the right side panel, the front panel, and the rear panel, and the top has a protruding portion extending relative to the front panel, and the lower surface of the protruding portion has a luminous area that can form a preset pattern; The range hood or the lower cavity has a light reflecting plate, and the position of the light reflecting plate at least includes a reflection position. When the light reflecting plate is located at the reflection position, at least part of the light reflecting plate is located below the top to reflect the preset pattern formed by the light-emitting area.
18. The range hood according to claim 17, It is characterized in that The light reflecting plate is a smoke collecting plate, which is arranged on the front panel. The smoke collecting plate has a relative inner surface and an outer surface, and the inner surface is closer to the upper smoke inlet than the outer surface. When the smoke collecting plate is located in the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.