Range hood

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to a range hood which comprises a range hood body, a light-emitting assembly and a detection module. The range hood main body is provided with a back plate and a smoke exhaust fan, the back plate is provided with a light-emitting display area, and the smoke exhaust fan is arranged in an air collecting cavity of the range hood main body; the light-emitting assembly is arranged in the range hood body and located on the rear side of the back plate, a light-emitting area of the light-emitting assembly is aligned with the light-emitting display area, the display color of the light-emitting assembly is variable, and light emitted by the light-emitting assembly is emitted out of the light-emitting display area. The detection module is arranged in the range hood main body and is electrically connected with a main control board of the range hood main body, and the display color of the light-emitting assembly is displayed based on the operation condition of the range hood detected by the detection module. The utility model aims to solve the problem that the back plate of the existing range hood cannot carry out variable-color light-emitting display according to the operation condition of the back plate.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] The range hood, also known as the range hood, is usually installed above the kitchen stove. The main function of the range hood is to quickly extract the waste from stove combustion and the fumes harmful to the human body generated during the cooking process and discharge them outdoors, while condensing and collecting the fumes to reduce damage to the kitchen environment and human health.

[0003] The existing range hood includes a detection module and a lighting module. The detection module is mainly used to detect the operating status of the range hood, and the lighting module is mainly installed on the range hood body. When the user is cooking, the smoke flows upward, and the existing light-emitting devices can only provide lighting, and the color is relatively single. When the smoke is too heavy, the brightness at the back panel of the range hood cannot be enhanced in time. At the same time, when the detection module detects that the operating status of the range hood has changed, the existing lighting equipment cannot change color according to the operating status of the range hood, so that the user cannot intuitively perceive the operating status of the range hood in a timely manner. Utility Model Content

[0004] The utility model provides a range hood to solve the problem that the back panel of the existing range hood cannot perform light display with variable colors according to the operating conditions thereof.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a range hood, comprising:

[0006] A range hood body, which has a back plate and a smoke exhaust fan, wherein the back plate is provided with a light-emitting display area, and the smoke exhaust fan is arranged in an air collecting cavity of the range hood body;

[0007] A light-emitting component is arranged in the range hood body and is located at the rear side of the back plate, the light-emitting area of ​​the light-emitting component is aligned with the light-emitting display area, the display color of the light-emitting component is changeable, and the light emitted by the light-emitting component shines out from the light-emitting display area;

[0008] The detection module is arranged in the range hood body and electrically connected to the main control board of the range hood body. The display color of the light emitting component is displayed based on the operating status of the range hood detected by the detection module.

[0009] According to one embodiment of the utility model, the light-emitting component displays colors D1, D2 and D3 respectively. When the measured value C of the detection module is not greater than the preset threshold C1, the display color of the light-emitting component is D1, and the smoke exhaust fan maintains the existing operating power; when the measured value C of the detection module is greater than the preset threshold C1 and not greater than the preset threshold C2, the display color of the light-emitting component is D2, and the operating power of the smoke exhaust fan is increased for the first time; when the measured value C of the detection module is greater than the preset threshold C2, the display color of the light-emitting component is D3, and the operating power of the smoke exhaust fan is increased for the second time.

[0010] According to one embodiment of the utility model, the detection module is a PM2.5 component, and the PM2.5 component detects the escape of oil smoke when the smoke exhaust fan is running. The measured value C of the detection module is the PM2.5 content value / concentration value in the air.

[0011] According to one embodiment of the utility model, the range hood body has an electric control cavity, the PM2.5 component is arranged in the electric control cavity, and the range hood body is also provided with a detection air inlet hole connected to the detection air inlet of the PM2.5 component. External air enters the detection air inlet of the PM2.5 component through the detection air inlet hole and is detected by the PM2.5 component.

[0012] According to one embodiment of the utility model, the detection module is a smoke sensing component, which is arranged in the air collecting chamber of the range hood body and located at the air outlet of the air collecting chamber, and is used to detect the oil fume concentration in the air collecting chamber. The measured value C of the detection module is the oil fume concentration value in the air collecting chamber.

[0013] According to one embodiment of the utility model, the width of the luminous display area along the left-right direction of the back panel is a1, and the height along the up-down direction of the back panel is b1; the width of the luminous area of ​​the luminous component along the left-right direction of the back panel is a2, a2≥a1, and the height of the luminous area of ​​the luminous component along the up-down direction of the back panel is b2, b2≥b1.

[0014] According to one embodiment of the utility model, it also includes an oil cup, and an oil drain hole is provided on the top plate of the range hood main body. The oil cup is connected to the bottom of the top plate of the range hood main body and aligned with the oil drain hole. After the oil cup is connected in place below the top plate of the range hood main body, the distance from the bottom of the oil cup to the top plate of the range hood main body is b3, the distance from the upper edge of the light-emitting area of ​​the light-emitting component to the top plate of the range hood main body is b4, and the distance from the upper edge of the light-emitting display area to the top plate of the range hood main body is b5, b4≤b3≤b5, b1≤b2.

[0015] According to one embodiment of the utility model, it also includes side baffles arranged on the left and right sides of the range hood body, side panel connecting frames are provided on the left and right sides of the back panel, the side panel connecting frames are provided with forward-facing slots, the rear edges of the side baffles are inserted into the slots on the corresponding sides, and the side panel connecting frames on each side have extension walls extending toward the opposite side on the wall surface facing the opposite side, and the extension walls are perpendicular to the wall surface on the side, and the back panel is located between the side panel connecting frames on both sides, and the edges on both sides are connected to the corresponding surfaces of the side panel connecting frames on the corresponding sides, and the extension walls on each side extend toward the opposite side and are connected to the front side of the back panel, and the distance between the outer edges of the extension walls on both sides is a3, a2≥a1≥a3.

[0016] According to one embodiment of the utility model, the light-emitting component includes a fixing tape, a light strip and a light guide, the light strip is a color-changing light strip, which is placed on the upper edge of the light guide, and the fixing tape connects the light strip and the light guide together.

[0017] According to one embodiment of the utility model, the fixing tape is adhered to the rear side of the light guide, and its upper end extends upward to the upper edge of the light strip, then bends downward over the upper edge of the light strip and extends downward to the front side of the light guide, and the portion between the lower edge of the fixing tape located on the front side of the light guide and the lower edge of the light guide forms the light-emitting area of ​​the light-emitting component.

[0018] Compared with the prior art, the smoke exhaust fan of the utility model has at least the following advantages:

[0019] A range hood of the utility model is provided with a range hood main body, a light emitting component and a detection module. When a user uses the range hood, he starts the smoke exhaust fan, and the oil smoke is sucked into the air collecting chamber of the range hood main body, thereby exhausting the oil smoke to the outside through the range hood main body; at the same time, the operating status of the range hood is detected in real time through the existing detection module, and the light emitting component emits light of a color corresponding to the operating status of the range hood detected by the detection module, so that the light emitted by the light emitting component can be better illuminated from the light emitting display area, which not only enhances the brightness at the back panel of the range hood, but also the back panel performs a light display with variable colors according to the operating status of the range hood, which also makes it convenient for the user to perceive the operating status of the range hood in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a structural explosion diagram of an embodiment of a range hood of the utility model.

[0022] Figure 2 It is a cross-sectional view of an embodiment of a range hood of the utility model.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 It is a top cross-sectional view of a light-emitting component in a range hood of the utility model.

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0026] Figure 6 The utility model is an exploded view of a range hood having a back plate and a light-emitting component.

[0027] Figure 7 The utility model is an exploded view of a light-emitting component in a range hood.

[0028] Figure 8 This is a structural explosion diagram of another embodiment of a range hood of the utility model.

[0029] Fig. 9 This is a cross-sectional view of another embodiment of a range hood of the present utility model.

[0030] Figure numerals: range hood body 1, back panel 11, luminous display area 111, smoke exhaust fan 12, oil drain hole 13, side panel connecting frame 14, slot 141, extension wall 142, light-emitting component 2, fixing tape 21, light strip 22, light guide plate 23, detection module 3, oil cup 4, side baffle 5, electric control chamber a, detection air inlet a1. DETAILED DESCRIPTION

[0031] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0035] See also Figures 1 to 9 The utility model provides a range hood, comprising a range hood body 1, a light emitting component 2 and a detection module 3.

[0036] The range hood body 1 has a back plate 11 and a smoke exhaust fan 12, the back plate 11 is provided with a light-emitting display area 111, and the smoke exhaust fan 12 is arranged in the air collecting chamber of the range hood body 1. The smoke exhaust fan 12 is started to suck the oil smoke into the air collecting chamber of the range hood body 1, so as to facilitate the discharge of the oil smoke; at the same time, the back plate 11 is provided with a light-emitting display area 111 so that the light emitted by the light-emitting component 2 can be illuminated through the light-emitting display area 111.

[0037] The light-emitting component 2 is arranged in the range hood body 1 and is located at the rear side of the back plate 11. The light-emitting area of ​​the light-emitting component 2 is aligned with the light-emitting display area 111. The display color of the light-emitting component 2 is changeable, and the light emitted by the light-emitting component 2 is emitted from the light-emitting display area 111. The light-emitting area of ​​the light-emitting component 2 is aligned with the light-emitting display area 111, so that the light emitted by the light-emitting component 2 can be better emitted from the light-emitting display area 111. At the same time, by displaying the light-emitting component 2 with changeable color, the brightness at the back plate 11 of the range hood is enhanced, and it is also convenient to display the color according to the actual operating status of the range hood, so that the user can perceive the operating status of the range hood in time.

[0038] The detection module 3 is arranged in the range hood body 1 and is electrically connected to the main control board of the range hood body 1. The display color of the light emitting component 2 is displayed based on the operating status of the range hood detected by the detection module 3. In this embodiment, the detection module 3 is an existing detection module 3. Based on the operating status of the range hood detected by the detection module 3, the light emitting component 2 can display the color through the existing analog circuit. In order to better and more quickly control the display color of the light emitting component 2, the main control board of the range hood body 1 can also control the display color of the light emitting component 2 and the operating status of the smoke exhaust fan 12 according to the detection result of the detection module 3.

[0039] When the user uses the range hood of the utility model, the smoke exhaust fan 12 is started, and the oil smoke is sucked into the air collecting chamber of the range hood body 1, and then the oil smoke is discharged to the outside through the range hood body 1; at the same time, the operating status of the range hood is detected in real time through the existing detection module 3, and the light-emitting component 2 emits light of a color corresponding to the operating status of the range hood detected by the detection module 3, so that the light emitted by the light-emitting component 2 can be better illuminated from the light-emitting display area 111, which not only enhances the brightness at the back panel 11 of the range hood, but also the back panel performs a light display with variable colors according to the operating status of the range hood, which also makes it convenient for the user to perceive the operating status of the range hood in time.

[0040] Based on the above examples, please refer to Figures 1 to 3In other embodiments, the light emitting component 2 displays colors D1, D2 and D3 respectively. In this embodiment, the light emitting component 2 displays colors D1 as green, D2 as orange and D3 as red respectively. Among them, the colors of D1, D2 and D3 can also be customized according to the actual needs of users. When the measured value C of the detection module 3 is not greater than the preset threshold C1, the display color of the light emitting component 2 corresponding to the existing operating power of the smoke exhaust fan 12 is D1; ​​when the measured value C of the detection module 3 is greater than the preset threshold C1 and not greater than the preset threshold C2, the display color of the light emitting component 2 corresponding to the increased operating power of the smoke exhaust fan 12 is D2; when the measured value C of the detection module 3 is greater than the preset threshold C2, the display color of the light emitting component 2 corresponding to the increased operating power of the smoke exhaust fan 12 is D3. In this embodiment, the display color of the light emitting component 2 is controlled by the existing analog circuit. In order to more efficiently control the display color of the light-emitting component 2, the main control board of the range hood body 1 (1) is used to control the display color of the light-emitting component 2. Based on the thresholds C1 and C2 set by the detection module 3, when the measured value C of the detection module 3 satisfies: C≤C1, the smoke exhaust fan 12 maintains the existing operating power, and the main control board of the range hood body 1 makes the display color of the light-emitting component 2 D1; when the measured value C of the detection module 3 satisfies: C1<C≤C2, the operating power of the smoke exhaust fan 12 is increased, and the main control board of the range hood body 1 makes the display color of the light-emitting component 2 D2; when the measured value C of the detection module 3 satisfies: C>C2, the operating power of the smoke exhaust fan 12 is increased again, and the main control board of the range hood body 1 makes the display color of the light-emitting component 2 D3. In this embodiment, the light-emitting component 2 emits light of a color corresponding to the operating status of the range hood according to the detection module 3, thereby enhancing the brightness at the back panel 11 of the range hood. It also makes it easier for the user to perceive the operating status of the range hood in a timely manner based on the display color of the light-emitting display area 111.

[0041] Based on the above examples, please refer to Figure 8 and Fig. 9 In other embodiments, the detection module 3 is a PM2.5 component, and the PM2.5 component detects the escape of oil smoke when the exhaust fan 12 is running. The measured value C of the detection module 3 is the PM2.5 content value / concentration value in the air. Through the setting of the PM2.5 component, the PM2.5 component detects the PM2.5 value in real time. When the user uses the range hood, the PM2.5 content value / concentration value exceeds the preset value by real-time judgment, and then displays different colors of light in the luminous display area 111 of the back panel 11, so that the user can timely perceive the PM2.5 value in the range hood and timely understand whether there are pollutants such as PM2.5 exceeding the standard in the kitchen.

[0042] Based on the above examples, please refer to Figure 8 and Fig. 9 In other embodiments, the range hood body 1 has an electric control cavity a, the PM2.5 component is arranged in the electric control cavity a, and the range hood body 1 is also provided with a detection air inlet a1 connected to the detection air inlet of the PM2.5 component, and the external air enters the detection air inlet of the PM2.5 component through the detection air inlet a1 and is detected by the PM2.5 component. By setting the electric control cavity a in the range hood body 1, when the user uses the range hood, after the external air enters the detection air inlet a1, the PM2.5 component detects the PM2.5 value in the external air through the detection air inlet of the PM2.5 component, thereby realizing that the user can timely perceive the PM2.5 value of the air in the kitchen during the use of the range hood, so that the user can quickly understand whether there are pollutants such as PM2.5 exceeding the standard in the kitchen.

[0043] Based on the above examples, please refer to Figure 1 and Figure 2 In other embodiments, the detection module 3 is a smoke sensor component, which is disposed in the air collecting chamber of the range hood body 1 and at the air outlet of the air collecting chamber, and is used to detect the oil fume concentration in the air collecting chamber. The measured value C of the detection module 3 is the oil fume concentration value in the air collecting chamber. By making the detection module 3 a smoke sensor component, the oil fume concentration in the air collecting chamber can be detected in real time through the smoke sensor component. When the user uses the range hood, the user can timely sense the oil fume concentration in the air collecting chamber, so that the user can know the discharge status of the oil fume in the air collecting chamber, so that the user can timely know whether the range hood needs to be repaired or maintained.

[0044] Based on the above examples, please refer to Figures 1 to 4In other embodiments, the width of the luminous display area 111 along the left-right direction of the back plate 11 is a1, and the height along the up-down direction of the back plate 11 is b1; the width of the luminous area of ​​the luminous component 2 along the left-right direction of the back plate 11 is a2, a2≥a1, and the height of the luminous area of ​​the luminous component 2 along the up-down direction of the back plate 11 is b2, b2≥b1. In this embodiment, the back plate 11 is made of glass. Among them, if a1 is 680mm and the height b1 is 120mm, the width a1 of the back plate 11 in the left-right direction and the height b1 of the back plate 11 in the up-down direction can also be customized according to the actual needs of the customer. In this embodiment, if a2 is 690mm and the height b2 is 130mm, similarly, a2 can be set to 680mm and the height b2 is 120mm. Wherein, if a2 and b2 satisfy the above conditions, the width a2 of the light-emitting area of ​​the light-emitting component 2 along the left-right direction of the back panel 11 and the height b2 of the light-emitting area of ​​the light-emitting component 2 along the up-down direction of the back panel 11 can also be customized according to the actual needs of the customer. In this embodiment, the light-emitting component 2 is installed on the rear side of the back panel 11 facing the user and aligned with the light-emitting display area 111, so that light is emitted from the display area of ​​the back panel 11 in the forward direction. At the same time, the width of the light-emitting area of ​​the light-emitting component 2 along the left-right direction of the back panel 11 is not less than the width of the light-emitting display area 111 along the left-right direction of the back panel 11, and the height of the light-emitting area of ​​the light-emitting component 2 along the up-down direction of the back panel 11 is not less than the height of the light-emitting display area 111 along the up-down direction of the back panel 11, so that the light can fully illuminate the entire light-emitting area, avoiding uneven brightness of the light emitted from the light-emitting display area 111.

[0045] Based on the above examples, please refer to Figure 3In other embodiments, the utility model further comprises an oil cup 4, an oil discharge hole 13 is provided on the top plate of the range hood body 1, the oil cup 4 is connected to the bottom of the top plate of the range hood body 1 and is aligned with the oil discharge hole 13, after the oil cup 4 is connected in place below the top plate of the range hood body 1, the distance from the bottom of the oil cup 4 to the top plate of the range hood body 1 is b3, the distance from the upper edge of the light-emitting area of ​​the light-emitting component 2 to the top plate of the range hood body 1 is b4, and the distance from the upper edge of the light-emitting display area 111 to the top plate of the range hood body 1 is b5, b4≤b3≤b5, b1≤b2. When the user uses the range hood, the oil flows from the oil discharge hole 13 provided on the top plate of the range hood body 1 into the oil cup 4 for collection. At the same time, by setting the distance from the bottom of the oil cup 4 to the top plate of the range hood body 1 to be no greater than the distance from the upper edge of the luminous display area 111 to the top plate of the range hood body 1, it is achieved that the oil cup 4 will not block the luminous display area 111; the distance from the upper edge of the luminous area of ​​the light-emitting component 2 to the top plate of the range hood body 1 is set to be no greater than the distance from the upper edge of the luminous display area 111 to the top plate of the range hood body 1, so that the fixing tape 21 will not block the luminous area; the distance from the upper edge of the luminous area of ​​the light-emitting component 2 to the top plate of the range hood body 1 is set to be no greater than the distance from the bottom of the oil cup 4 to the top plate of the range hood body 1, so that the light can be seen starting from the bottom of the oil cup 4.

[0046] Based on the above examples, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6In some other embodiments, the utility model further includes side baffles 5 arranged on the left and right sides of the range hood body 1, side panel connecting frames 14 are arranged on the left and right sides of the back panel 11, and a forward slot 141 is arranged on the side panel connecting frame 14, and the rear edge of the side baffle 5 is inserted into the slot 141 on the corresponding side, and an extension wall 142 is extended toward the opposite side on the wall surface facing the opposite side on each side of the side panel connecting frame 14, and the extension wall 142 is perpendicular to the wall surface on the side, and the back panel 11 is located between the side panel connecting frames 14 on both sides, and the edges on both sides thereof are connected to the corresponding surfaces of the side panel connecting frames 14 on the corresponding sides, and the extension wall 142 on each side extends toward the opposite side and is connected to the front side of the back panel 11, and the distance between the outer edges of the extension walls 142 on both sides is a3, a2≥a1≥a3. By arranging side baffles 5 on the left and right sides of the range hood body 1, when installing the range hood, the rear edge of the side baffles 5 is inserted into the slots 141 on the corresponding side, so that the side baffles 5 can be quickly and conveniently installed on the range hood body 1. When using the range hood, the side baffles 5 on the left and right sides of the back plate 11 block the oil smoke on the stove, prevent the oil smoke on the stove from escaping from the bottom of the range hood, prevent the oil smoke from overflowing during cooking, and thus reduce the oil smoke in the kitchen. Wherein, a3 is 680mm or 670mm. The distance between the outer edges of the extension walls 142 on both sides is set to be smaller than the width of the light-emitting display area 111 along the left and right directions of the back plate 11, and the two sides of the back plate 11 can be placed on the extension walls 142, so that the user can quickly install the range hood.

[0047] Based on the above examples, please refer to Figure 1 and Figure 7 In other embodiments, the light emitting assembly 2 includes a fixing tape 21, a light strip 22 and a light guide 23. The light strip 22 is a color-changing light strip, which is placed on the upper edge of the light guide 23. The fixing tape 21 connects the light strip 22 and the light guide 23. In this embodiment, after the fixing tape 21 connects the light strip 22 and the light guide 23, the light strip 22 is installed on the rear side of the back panel 11 facing the user. After the light strip 22 emits light, the light of the light strip 22 shines on the light guide 23. After the light guide 23 guides the light, the light is emitted from the display area of ​​the back panel 11, thereby enhancing the brightness when the user uses the range hood.

[0048] Based on the above examples, please refer to Figure 1 and Figure 7In other embodiments, the fixing tape 21 is adhered to the rear side of the light guide 23, and its upper end extends upward to the upper edge of the light strip 22, then passes over the upper edge of the light strip 22, bends downward and extends downward to the front side of the light guide 23, and the portion between the lower edge of the portion of the fixing tape 21 located on the front side of the light guide 23 and the lower edge of the light guide 23 forms the light-emitting area of ​​the light-emitting component 2. In this embodiment, the upper edge of the light strip 22 is connected to the range hood body through part of the fixing tape 21, and the upper edge of the light strip 22 extends downward and the part of the fixing tape 21 located between the back plate 11 and the light guide 23 adheres the light strip 22 and the light guide 23 to the back plate 11. At the same time, the upper edge of the light strip 22 extends downward and the part of the fixing tape 21 located on the light guide 23 facing away from the back plate 11 adheres the light strip 22 and the light guide 23 together again. Thus, the light-emitting component 2 is quickly bonded.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. A range hood, characterized in that: include: A range hood body (1) comprising a back panel (11) and a smoke exhaust fan (12), wherein the back panel (11) is provided with a light-emitting display area (111), and the smoke exhaust fan (12) is arranged in an air collecting chamber of the range hood body (1); A light-emitting component (2) is arranged in the range hood body (1) and is located on the rear side of the back plate (11); the light-emitting area of ​​the light-emitting component (2) is aligned with the light-emitting display area (111); the display color of the light-emitting component (2) is changeable; and the light emitted by the light-emitting component (2) is emitted from the light-emitting display area (111); A detection module (3) is arranged in the range hood body (1) and is electrically connected to a main control board of the range hood body (1); the display color of the light emitting component (2) is displayed based on the operating status of the range hood detected by the detection module (3).

2. The range hood according to claim 1, characterized in that: The light-emitting component (2) displays colors D1, D2 and D3 respectively. When the actual measured value C of the detection module (3) is not greater than the preset threshold value C1, the display color of the light-emitting component (2) is D1, and the smoke exhaust fan (12) maintains the existing operating power; when the actual measured value C of the detection module (3) is greater than the preset threshold value C1 and not greater than the preset threshold value C2, the display color of the light-emitting component (2) is D2, and the operating power of the smoke exhaust fan (12) is increased for the first time; when the actual measured value C of the detection module (3) is greater than the preset threshold value C2, the display color of the light-emitting component (2) is D3, and the operating power of the smoke exhaust fan (12) is increased for the second time.

3. The range hood according to claim 2, characterized in that: The detection module (3) is a PM2.5 component, which detects the escape of oil smoke when the smoke exhaust fan (12) is in operation. The measured value C of the detection module (3) is the PM2.5 content value / concentration value in the air.

4. The range hood according to claim 3, characterized in that: The range hood body (1) has an electric control chamber (a), the PM2.5 component is arranged in the electric control chamber (a), and the range hood body (1) is also provided with a detection air inlet hole (a1) which is connected to the detection air inlet of the PM2.5 component. External air enters the detection air inlet of the PM2.5 component through the detection air inlet hole (a1) and is detected by the PM2.5 component.

5. The range hood according to claim 2, characterized in that: The detection module (3) is a smoke sensing component, which is arranged in the air collecting chamber of the range hood body (1) and located at the air outlet of the air collecting chamber, and is used to detect the oil fume concentration in the air collecting chamber. The actual measured value C of the detection module (3) is the oil fume concentration value in the air collecting chamber.

6. The range hood according to claim 1, characterized in that: The width of the light-emitting display area (111) along the left-right direction of the back plate (11) is a1, and the height along the top-bottom direction of the back plate (11) is b1; the width of the light-emitting area of ​​the light-emitting component (2) along the left-right direction of the back plate (11) is a2, a2≥a1, and the height of the light-emitting area of ​​the light-emitting component (2) along the top-bottom direction of the back plate (11) is b2, b2≥b1.

7. The range hood according to claim 6, characterized in that: It also includes an oil cup (4), and an oil discharge hole (13) is provided on the top plate of the range hood body (1). The oil cup (4) is connected to the bottom of the top plate of the range hood body (1) and is aligned with the oil discharge hole (13). After the oil cup (4) is connected in place below the top plate of the range hood body (1), the distance from the bottom of the oil cup (4) to the top plate of the range hood body (1) is b3, the distance from the upper edge of the light-emitting area of ​​the light-emitting component (2) to the top plate of the range hood body (1) is b4, and the distance from the upper edge of the light-emitting display area (111) to the top plate of the range hood body (1) is b5, b4≤b3≤b5, b1≤b2.

8. The range hood according to claim 6, characterized in that: It also includes side baffles (5) arranged on the left and right sides of the range hood body (1), and side panel connecting frames (14) are arranged on the left and right sides of the back panel (11). The side panel connecting frames (14) are provided with forward-facing slots (141), and the rear edge of the side baffle (5) is inserted into the slots (141) on the corresponding side. An extension wall (142) extends toward the opposite side on the wall surface facing the opposite side of the side panel connecting frame (14) on each side, and the extension wall (142) is perpendicular to the wall surface on the side. The back panel (11) is located between the side panel connecting frames (14) on both sides, and its edges on both sides are connected to the corresponding surfaces of the side panel connecting frames (14) on the corresponding side. The extension wall (142) on each side extends toward the opposite side and is connected to the front side of the back panel (11). The distance between the outer edges of the extension walls (142) on both sides is a3, and a2≥a1≥a3.

9. The range hood according to claim 1, characterized in that: The light-emitting component (2) comprises a fixing tape (21), a light-emitting light strip (22) and a light guide plate (23); the light-emitting light strip (22) is a color-changeable light strip, which is placed on the upper edge of the light guide plate (23); and the fixing tape (21) connects the light-emitting light strip (22) and the light guide plate (23) together.

10. The range hood according to claim 9, characterized in that: The fixing tape (21) is adhered to the rear side of the light guide (23), and its upper end extends upward to the upper edge of the light strip (22), then passes over the upper edge of the light strip (22), bends downward and extends downward to the front side of the light guide (23), and the portion between the lower edge of the fixing tape (21) located on the front side of the light guide (23) and the lower edge of the light guide (23) forms the light-emitting area of ​​the light-emitting component (2).

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