CN104006428B - Smoke exhaust ventilator - Google Patents

Abstract

A range hood, which includes a casing, at least one side wall of the casing is provided with a recess, and the recess is embedded with a cover plate; and the recess provides a stepped surface, and the cover plate and the step A light emitting device is sandwiched between the surfaces. The invention skillfully interposes the light emitting device between the step surface provided by the concave part and the cover plate, so that the appearance of the whole range hood is smooth, not easy to hide dirt and easy to clean. The combination of the cover plate and the luminous device makes the range hood obtain a stylish and unique appearance visual effect.

Description

range hood

【Technical field】

The invention relates to the field of household appliances, in particular to a range hood.

【Background technique】

The range hood can quickly take away the oil fumes harmful to the human body produced during the combustion and cooking process of the stove, discharge them outside, reduce pollution, and purify the air. It has become an indispensable kitchen equipment for modern families. With the improvement of people's material and cultural level, range hoods with a single surface structure can no longer meet people's aesthetic requirements. Therefore, adding decorative strips to the shell of range hoods to beautify the appearance of range hoods has become a trend in range hood manufacturing. . However, the installation structure of the existing decorative strips is complicated, and it is necessary to open holes on the range hood, resulting in uneven surface of the range hood. Since frying, frying, deep-frying and other cooking methods that generate a lot of oily smoke are often used in China, these uneven places are easy to accumulate Oil stains cause trouble for users to clean the range hood, and even affect the appearance of the entire range hood.

References to prior art herein are not intended to be an admission that such prior art was known to those of ordinary skill in the art to which the present invention pertains prior to the filing date of this application, unless supported by sufficient evidence.

【Content of invention】

The main purpose of the present invention is to solve at least one of the above-mentioned technical problems, and to provide a range hood with a cover plate and a light emitting device, which has a flat appearance.

The present invention provides a range hood, which includes a casing, at least one side wall of the casing is provided with a recess, and the recess is embedded with a cover plate; and the recess provides a step surface, and the cover plate A light emitting device is interposed between the stepped surface. The invention skillfully interposes the light-emitting device between the stepped surface and the cover plate provided by the concave part, so that the appearance of the whole range hood is smooth and refreshing, it is not easy to hide dirt and dirt, and it is convenient to clean. At the same time, the manufacturing process is simplified and the manufacturing cost is reduced. cost. In addition, the cooperation of the cover plate and the light-emitting device enables the range hood to obtain a stylish and unique appearance visual effect.

As a preferred technical solution, the light-emitting device is in the shape of a strip, which is more convenient to manufacture and install the light-emitting device.

In order to simplify the manufacture of the housing and improve the strength of the housing, the housing is integrally formed.

As a preferred technical solution, the cover plate and the light-emitting device are flush with the side wall, so that the range hood has a smooth appearance, is not easy to accumulate oil, and is more convenient for cleaning and maintenance of the range hood.

In order to facilitate the user to easily observe the light of the light emitting device on the left and right sides of the range hood, the front side wall, the left side wall and the right side wall of the housing are respectively provided with the recess and the corresponding light emitting device , each of the light emitting devices is connected end to end in sequence.

Furthermore, in order to facilitate the user to observe the light emitted by the light emitting device from various angles, increase the irradiation range of the light emitting device, and obtain a more unique appearance and visual effect, the light emitting devices are assembled into a U shape as a whole.

Further, the front side wall of the housing is provided with the recess and the corresponding light emitting device, and the cover plate located on the front side wall is provided with a control panel, where the control panel is skillfully combined with the cover plate, simplifying the Clear structure and efficient use of space.

As a preferred technical solution, the cover plate is made of glass material. The surface of the glass is smooth, oil stains are not easy to adhere, and it is easy to clean; and the glass has light-transmitting characteristics, which cooperates with the light-emitting device to facilitate the transmission of light, and brings unique visual effects and a stylish appearance.

Furthermore, in order to simplify the manufacturing process and reduce the cost, the cover plate is embedded in the recess by sticking.

Further, the light emitting device extends along the length direction of the side wall; wherein, the length of the side wall is L, the length of the cover plate is L1, the length of the light emitting device is L2, and the length of L, L1 and L2 satisfy the relational expression: L=L1=L2. In this way, the light-emitting device can penetrate the entire side wall without opening holes in the housing and reducing the overall strength of the housing. The integrality of the range hood is not damaged, and the light emitting device with obvious effect and wide irradiation range can be provided.

Further, the recess is arranged at the position where the side wall is adjacent to the top of the housing, and the top of the housing is also provided with a cover plate, the cover plate on the side wall and the top The cover panels meet each other. In this way, most of the range hood shell is covered with cover plates, which overcomes the technical prejudice that people think that the range hood shell can only be made of metal materials such as stainless steel, which not only brings unique visual effects, but also makes people feel fresh and new. And the cover board is mostly made of glass and other materials, so oil stains are not easy to adhere to, and it is also easy to clean.

Further, the recess is disposed at a position where the side wall adjoins the bottom of the housing. Such a structure makes it easier for the light of the light emitting device to irradiate to the bottom of the range hood.

Furthermore, only the light emitting device provides illumination for the range hood. The inventive device integrates the functions of decoration and lighting, and the range hood does not need additional lighting lamps, which simplifies the structure of the range hood and reduces the cost.

Further, the range hood further includes a control device and a smoke detection device for detecting smoke concentration, and the control device is used for controlling the light emission according to the smoke concentration information detected by the smoke detection device. The device displays a corresponding color and/or brightness. In this way, the user can know the current smoke concentration by observing the color and/or brightness displayed by the light emitting device.

Preferably, the light emitting device includes red light emitting diodes, green light emitting diodes and blue light emitting diodes.

The present invention also provides a range hood, which includes a casing, at least one side wall of the casing includes a concave portion, the concave portion is embedded with a cover plate, and the cover plate is made of a light-transmitting material. The inner side of the cover plate is provided with a light emitting device. In this way, the range hood not only has a smooth appearance, but also the cover plate can protect the luminous device so that the luminous device is not easily damaged.

【Description of drawings】

Fig. 1 is a perspective view of a range hood according to an embodiment of the present invention;

Fig. 2 is a sectional view along line A-A of Fig. 1;

Fig. 3 is a perspective view of a range hood according to another embodiment of the present invention;

Fig. 4 is a perspective view of a range hood according to another embodiment of the present invention;

Fig. 5 is a sectional view of a range hood according to an embodiment of the present invention;

Fig. 6 is a graph showing the corresponding relationship between the color of the light emitting device and the smoke concentration according to an embodiment of the present invention;

Fig. 7 is a sectional view of another range hood of the present invention.

Explanation about the reference signs in the figure:

1,1',2,3,4-range hood; 10,10'-housing; 11,11'-side wall; 12,12'-recess; 20,21,20'-cover plate; 30, 30'-light emitting device; 11a-front side wall; 11b-left side wall; 11c-right side wall; 121-step surface; 201-control panel.

【Detailed ways】

In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a perspective view of a range hood according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view along line A-A of FIG. 1 . The range hood 1 of the present invention includes a casing 10 , at least one side wall 11 of the casing 10 is provided with a recess 12 , and a cover plate 20 is embedded in the recess 12 . The concave portion 12 provides a step surface 121 , and the light emitting device 30 is sandwiched between the cover plate 20 and the step surface 121 .

As shown in Figure 2, as a preferred embodiment, the shell 10 is an integrally formed structure, for example, a whole piece of stainless steel plate is used to stamp the shell to form the shell, which not only has high structural strength, no seam welding scars, smooth appearance, and is not easy to hide. It is free from dirt and dirt and is easy to clean; it can also reduce assembly procedures, facilitate the manufacture of range hoods, and reduce manufacturing costs. The cover plate 20 is made of glass material, and is embedded in the concave portion 12 by pasting. The light emitting device 30 is preferably strip-shaped, such as a strip-shaped light-emitting diode (LED), which ensures sufficient brightness and low manufacturing cost, and can be easily installed in the recess 12 without complicated assembly procedures such as pasting. Further, in order to ensure that the outer surface of the range hood 1 is flat, the cover plate 20 and the light emitting device 30 are flush with the side wall 11 .

Please refer to FIG. 3 . FIG. 3 is a perspective view of a range hood according to another embodiment of the present invention. In another preferred embodiment of the present invention, the front side wall 11a, the left side wall 11b and the right side wall 11c of the shell of the range hood 2 are respectively provided with recesses and corresponding light emitting devices 30, and each light emitting device 30 is sequentially connected. That is to say, the range hood 2 is not provided with a light-emitting device except the side wall close to the installation wall, and all other side walls are provided with a light-emitting device. Furthermore, each light emitting device 30 is integrated into a U shape as a whole.

Please refer to FIG. 4 , which is a perspective view of a range hood according to another embodiment of the present invention. In another preferred embodiment of the present invention, the front side wall 11 a of the range hood 3 housing is provided with a recess and a corresponding light emitting device 30 , and the cover plate 20 on the front side wall 11 a is provided with a control panel 201 .

Please continue to refer to FIG. 4 , the light emitting device 30 extends along the length direction of the side wall (ie, the front side wall 11 a ). Wherein, the length of the side wall is L, the length of the cover plate 20 is L1, and the length of the light emitting device 30 is L2. Preferably, L, L1, and L2 satisfy the relationship: L=L1=L2.

As shown in FIG. 2 , the recess 12 is arranged at a position where the side wall 11 is adjacent to the top of the range hood 1 casing 10 , and the top of the casing 10 is also provided with a cover plate 21 , and the cover plate 20 on the side wall 11 is connected to the top of the range hood. The cover plates 21 are in contact with each other. It can be seen from Fig. 1, Fig. 3 and Fig. 4 that a cover plate 21 is arranged on the top of the range hood, and the cover plate 21 is aligned with the cover plate 20 on the side wall. There are obvious gaps or openings, the appearance of the whole range hood is complete and smooth, the appearance is beautiful and fashionable, and it is easy to clean.

The luminous device is arranged on the casing of the range hood, so that the range hood obtains a stylish appearance visual effect, and injects new elements into the dull kitchen design. In addition to the decorative effect, the light emitted by the light-emitting device can also provide illumination. Please refer to FIG. 5 , which is a cross-sectional view of a range hood according to an embodiment of the present invention. In another preferred embodiment of the present invention, the recess 12 of the range hood 4 is disposed at a position where the side wall 11 is adjacent to the bottom of the casing 10 . In this way, the light emitted by the light emitting device 30 can pass through the cover plate 20 made of glass material and shoot to the cooker surface installed below the range hood, and the light irradiation angle of the light emitting device 30 can be specifically set as required. Light directing elements and diffusing elements may also be included. Furthermore, the range hood does not need to be equipped with another lighting device, and only the light emitting device 30 provides lighting for the range hood. In this way, the light emitting device 30 replaces the lighting lamp of the traditional range hood, integrates lighting and decoration functions, simplifies the manufacturing process of the range hood and reduces the manufacturing cost, and at the same time obtains a stylish and simple appearance. It should be noted that the range hood of the present invention can be a range hood of a European type or a side suction type, and the so-called "top" and "bottom" of the housing refer to the range hood that is closer to the cooking surface after the range hood is installed, and The wall surface that is not perpendicular to the horizontal plane is called the bottom of the casing, and the opposite wall away from the cooking surface is called the top of the casing.

In yet another preferred embodiment of the present invention, the light-emitting device is combined with the detection of the concentration of smoke produced by cooking, that is, the range hood also includes a control device and a smoke detection device for detecting the concentration of smoke. The light-emitting device is controlled to display corresponding colors and/or brightness according to the smoke concentration information detected by the smoke detection device. Preferably, the light-emitting device in this embodiment includes red LEDs, green LEDs and blue LEDs, these three colors are three primary colors, mixed in a certain proportion to produce multiple colors and/or brightness, such as red LEDs and green LEDs Mix 1:1 to get yellow; mix red LED, green LED and blue LED in 1:1:1 to get white. The control unit can produce different colors by individually controlling the on or off of each LED. The corresponding relationship between the color and the smoke concentration is preset in the range hood, and the control device can be a microcontroller (MCU). Please refer to Figure 6, which shows the correspondence between the color of the light emitting device and the smoke concentration according to an embodiment of the present invention. The relationship diagram divides the smoke concentration into five ranges. When there is no smoke, the light-emitting device displays white; when the smoke concentration is low, the light-emitting device displays blue; when the smoke concentration reaches medium, the light-emitting device displays yellow; When the smoke concentration reaches a high level, the light-emitting device displays orange; when the smoke concentration reaches an extremely high level, the light-emitting device displays red. Further, in order to prevent dangerous accidents, the range hood can also include an alarm device, the range hood is preset with an alarm concentration, and when the detected smoke concentration information reaches the alarm concentration, an alarm sound is issued for reminder.

In addition, the present invention also provides a range hood 1', as shown in Fig. 7, which is a cross-sectional view of another range hood of the present invention. The range hood 1' includes a housing 10'. At least one side wall 11' of the housing 10' includes a recess 12', the recess 12' is embedded with a cover plate 20', and the cover plate 20' is made of a light-transmitting material, and the inner side of the cover plate 20' is provided with a light emitting device 30 '. The inner side of the cover plate 20' is provided with a light-emitting device 30', on the one hand to protect the light-emitting device 30' from being damaged, and to make the range hood 1' smooth and flat, not easy to hide dirt, and more convenient for users to clean.

The present invention has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention all belong to the scope of patent protection of the present invention.

Claims (16)

1. A range hood (1, 2, 3, 4), comprising a housing (10), characterized in that at least one side wall (11) of the housing (10) is inwardly recessed to form a recess (12 ), the recess (12) is embedded with a cover plate (20); and the recess (12) provides a first-order surface (121), and the cover plate (20) is sandwiched between the A light emitting device (30) is provided. 2. The range hood (1, 2, 3, 4) according to claim 1, characterized in that the light emitting device (30) is in the shape of a strip. 3. The range hood (1, 2, 3, 4) according to claim 1, characterized in that, the housing (10) is integrally formed. 4. The range hood (1, 2, 3, 4) according to claim 1, characterized in that, the cover plate (20) and the light emitting device (30) are all connected to the side wall (11) flush. 5. The range hood (2) according to claim 1, characterized in that, the front side wall (11a), the left side wall (11b) and the right side wall (11c) of the housing (10) are respectively The concave portion (12) and corresponding light emitting devices (30) are provided, and each light emitting device (30) is connected end to end in sequence. 6. The range hood (2) according to claim 5, characterized in that, each of the light emitting devices (30) is assembled into a U shape as a whole. 7. The range hood (3) according to claim 1, characterized in that, the front side wall (11a) of the casing (10) is provided with the recess (12) and the corresponding light emitting device (30) , the cover panel (20) located on the front side wall (11a) is provided with a control panel (201). 8. The range hood (1, 2, 3, 4) according to claim 1, characterized in that, the cover plate (20) is made of glass material. 9. The range hood (1, 2, 3, 4) according to any one of claims 1 to 8, characterized in that, the cover plate (20) is embedded in the recess ( 12). 10. The range hood (2, 3) according to any one of claims 1 to 8, characterized in that, the light emitting device (30) extends along the length direction of the side wall (11); wherein, The length of the side wall (11) is L, the length of the cover plate (20) is L1, the length of the light emitting device (30) is L2, and the L, L1, and L2 satisfy the relationship: L=L1 =L2. 11. The range hood (1, 2, 3) according to claim 10, characterized in that, the recess (12) is arranged on the top of the side wall (11) adjacent to the casing (10) position, and the top of the casing (10) is also provided with a cover plate (21), and the cover plate (20) on the side wall (11) and the cover plate (21) on the top are connected to each other. 12. The range hood (4) according to any one of claims 1 to 8, characterized in that, the recess (12) is arranged on the side wall (11) adjacent to the housing (10) bottom position. 13. The range hood (4) according to claim 12, characterized in that only the light emitting device (30) provides illumination for the range hood (4). 14. The range hood (1, 2, 3, 4) according to any one of claims 1 to 8, characterized in that it further comprises a control device and a smoke detection device for detecting the smoke concentration, the The control device is used for controlling the light emitting device (30) to display corresponding colors and/or brightness according to the smoke concentration information detected by the smoke detection device. 15. The range hood (1, 2, 3, 4) according to claim 14, characterized in that, the light emitting device (30) comprises a red light emitting diode, a green light emitting diode and a blue light emitting diode. 16. A range hood (1'), comprising a housing (10'), characterized in that at least one side wall (11') of the housing (10') is inwardly recessed to form a recess (12') , the recess (12') is embedded with a cover plate (20'), and the cover plate (20') is made of a light-transmitting material, and the inner side of the cover plate (20') is provided with a light emitting device (30 ').