CN215909145U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, which comprises: an air inlet device provided with an air suction opening; the air draft device is arranged separately from the air inlet device and is connected with the air inlet device through a pipeline; the adapter is arranged between the air inlet device and the pipeline and provided with a first connecting part connected with the air inlet device and a second connecting part connected with the pipeline. The range hood provided by the utility model can improve the convenience and compatibility of pipeline installation and ensure the air volume of the range hood on the basis of ensuring the noise reduction effect.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of oil fume extraction equipment, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern homes. The range hood has the main function of sucking and removing oil smoke during cooking, so that a good kitchen environment is maintained.

The pipeline of the range hood in the related art, especially the split type range hood, is generally installed above a ceiling, although the noise is reduced to a certain extent, the installation space above the ceiling is limited, if the pipeline is laid in the limited space, great difficulty is brought to the installation of the pipeline and the connection between the pipeline and the range hood body, and in addition, a computer board is arranged on a top plate of a fan box of the conventional range hood in the related art, the size of an air outlet on the top plate is limited, and the air volume of the range hood is influenced; therefore, how to make the pipeline of the range hood, especially the split type range hood, perform reasonable layout and reasonable connection in a limited installation space, and how to avoid the influence of the computer board on the air volume of the range hood are technical problems to be solved urgently at present.

It should be noted that the above background description is provided only for the sake of clarity and complete description of the technical solutions of the present application, and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the problems, the range hood provided by the utility model can improve the convenience and compatibility of pipeline installation and ensure the air volume of the range hood on the basis of ensuring the noise reduction effect.

According to a first aspect of embodiments of the present invention, there is provided a range hood, including:

an air inlet device provided with an air suction opening;

the air draft device is arranged separately from the air inlet device and is connected with the air inlet device through a pipeline;

the adapter is arranged between the air inlet device and the pipeline and provided with a first connecting part connected with the air inlet device and a second connecting part connected with the pipeline.

According to a second aspect of embodiments of the present invention, wherein,

the cross-section of the first connection portion has a first transverse dimension and a first longitudinal dimension, the cross-section of the second connection portion has a second transverse dimension and a second longitudinal dimension, the second longitudinal dimension being smaller than the first longitudinal dimension, and/or the second transverse dimension being smaller than the first transverse dimension.

According to a third aspect of embodiments of the present invention, wherein,

the pipeline is at least partially arranged above the suspended ceiling.

According to a fourth aspect of embodiments of the present invention, wherein,

the piping above the suspended ceiling comprises at least: first bending part and the second bending part, the second bending part is located on the fluid flow direction the low reaches of first bending part, the second bending part is bent in the direction of height and is formed and/or bend in the horizontal direction and form, the second bending part includes first pipeline and is located on the fluid flow direction the second pipeline in first pipeline low reaches, the second pipeline orientation is close to air inlet unit's wall.

According to a fifth aspect of embodiments of the present invention, wherein,

the first bending portion deviates from the wall surface is formed in a bending mode.

According to a sixth aspect of embodiments of the present invention, wherein,

the hot blast blowpipe apparatus still includes: the outlet of the box body is connected with the first connecting part, and the inlet of the box body is connected with the smoke collecting cavity.

According to a seventh aspect of embodiments of the present invention, wherein,

the cross section or the longitudinal section of the box body is matched with the size of a fan of the air draft device, and a filtering device is arranged in the box body.

According to an eighth aspect of embodiments of the present invention, wherein,

the outlet has an area dimension that is close to or equal to the area dimension of the inlet.

According to a ninth aspect of embodiments of the present invention, wherein,

the lampblack absorber is still including connecting the second connecting portion with the connecting piece of pipeline, the one end of connecting piece with the connection can be dismantled to the second connecting portion, the other end of connecting piece with the tube coupling.

According to a tenth aspect of the embodiments of the present invention, wherein,

the range hood further includes: and the electrical box is arranged on the outer surface of the adapter.

According to an eleventh aspect of embodiments of the present invention, wherein,

a second longitudinal dimension of a cross section of the second connecting portion is smaller than a first longitudinal dimension of a cross section of the first connecting portion to form a first slope on the outer surface, the electrical box is disposed on the first slope,

or the second transverse dimension of the cross section of the second connecting part is smaller than the first transverse dimension of the cross section of the first connecting part so as to form a second inclined surface on the outer surface, and the electrical box is arranged on the second inclined surface.

According to a twelfth aspect of the embodiments of the present invention, wherein,

the electric appliance box is provided with: a mounting portion integrally formed with the outer surface or detachably mounted to the outer surface; and a cover plate having a space for accommodating the circuit board formed therebetween.

One of the beneficial effects of the utility model is that: this application can realize the butt joint with pipeline and hot blast blowpipe apparatus in limited installation space through setting up the adaptor in the lampblack absorber to follow the inspiratory oil smoke of inlet scoop and through the leading-in this pipeline of this adaptor, can promote the convenience and the compatibility of piping erection on the basis of guaranteeing noise reduction effect, guarantee the amount of wind of lampblack absorber.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not so limited in scope. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of a range hood provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another view angle of the range hood provided in the embodiment of the present application;

fig. 3 is a schematic structural diagram of an adapter of a range hood provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a connecting piece of a range hood provided in an embodiment of the present application.

Description of reference numerals:

100. a range hood;

1. an air intake device; 10. an air suction opening; 11. a box body; 1101. an outlet; 1102. an inlet;

2. a pipeline; 21. a first bending portion; 22. a second bending portion; 221. a first pipeline; 222. a second pipeline;

3. an air draft device;

4. an adapter; 41. a first connection portion; 42. a second connecting portion;

5. a suspended ceiling;

6. an electrical box; 61. an installation part; 62. a cover plate;

7. a connecting member.

Detailed Description

The foregoing and other features of the utility model will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the utility model have been disclosed in detail as being indicative of some of the embodiments in which the principles of the utility model may be employed, it being understood that the utility model is not limited to the embodiments described, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.

In the embodiments of the present invention, the terms "first", "second", and the like are used for distinguishing different elements by name, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.

In embodiments of the utility model, the singular forms "a", "an", and the like may include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in fig. 1, the range hood 100 includes: an air intake device 1 provided with an air suction opening 10; the air draft device 3 is arranged separately from the air inlet device 1 and is connected with the air inlet device 1 through a pipeline 2; the adapter 4 is arranged between the air intake device 1 and the pipeline 2, and the adapter 4 is provided with a first connecting part 41 connected with the air intake device 1 and a second connecting part 42 connected with the pipeline 2.

Therefore, the adapter 4 is arranged in the split type range hood, the pipeline 2 and the air inlet device 1 can be butted in a limited installation space, so that oil smoke sucked from the air suction opening 10 is effectively guided into the pipeline 2 through the adapter 4, the installation convenience and compatibility of the pipeline 2 in the limited space can be improved on the basis of ensuring the noise reduction effect, and the air volume of the split type range hood is ensured; in addition, pipeline 2 and hot blast blowpipe apparatus 1 can need not be as an organic whole structure, more makes things convenient for components of a whole that can function independently packing and transportation, when components of a whole that can function independently lampblack absorber need be installed at user's house, accessible adaptor 4 realizes being connected between pipeline 2 and the hot blast blowpipe apparatus 1, has also made things convenient for the change of the part of components of a whole that can function independently lampblack absorber simultaneously, for example when hot blast blowpipe apparatus 1 is changed to needs, can not change pipeline 2 through dismantling adaptor 4, from this, promote change efficiency.

In further embodiments, the aforementioned adaptor may take a variety of forms for accommodating various operating conditions, the cross-section of the first connection portion 41 having a first transverse dimension and a first longitudinal dimension, the cross-section of the second connection portion 42 having a second transverse dimension and a second longitudinal dimension, the second longitudinal dimension being smaller than the first longitudinal dimension, and/or the second transverse dimension being smaller than the first transverse dimension.

In some embodiments, as shown in fig. 1, the range hood may include an air intake device 1 and an air exhaust device 3 which are separately arranged. Wherein, hot blast blowpipe apparatus 1 can be close to the user side setting, and updraft ventilator 3 keeps away from the user side setting. Updraft ventilator 3 and hot blast blowpipe apparatus 1 can install in the both sides of furred ceiling 5, for example, hot blast blowpipe apparatus 1 installs in the below of furred ceiling 5, and updraft ventilator 3 is installed in the top of furred ceiling 5 at least part.

In some embodiments, as shown in FIG. 1, the air extraction assembly 3 includes a housing (not shown in FIG. 1) and an air intake (not shown in FIG. 1), a fan (not shown in FIG. 1) disposed within the housing. This fan can adopt any kind of current fan, for example adopt single air inlet fan, also can be two air inlet fan, or can be a plurality of fan systems etc. it specifically adopts which kind of fan this application does not do specific restriction here.

For the range hood 100, the air exhaust device 3 is a main source of noise generation, and when the air exhaust device 3 is arranged away from a user side, the influence of the noise generated when the fan works on the user can be weakened. In addition, after this fan kept away from the kitchen range, reduced the oil smoke that adsorbs on this fan impeller and spiral case greatly, be difficult to accumulate grease on this fan promptly to guarantee the reliability when this fan moves, prolonged the life of fan.

In some embodiments, the air intake 1 and the air extraction device 3 may be in communication via a conduit 2. The pipeline 2 can be a pipeline with a certain wall thickness, one end of the pipeline is connected with the adaptor 4, and the other end of the pipeline is connected with the air draft device 3. In addition, a reserved smoke channel can be used as the pipeline 2, and in particular, the forming mode of the pipeline 2 is not limited in the application.

In some embodiments, the conduit 2 is disposed at least partially above the ceiling 5. For example, as shown in fig. 1, a part of the pipeline 2 is disposed above the suspended ceiling 5, and in addition, the pipeline 2 may be disposed entirely above the suspended ceiling 5, and may be disposed according to an actual installation environment, which is not limited herein.

In some embodiments, the piping 2 is illustrated partially above the ceiling 5. As shown in fig. 2, the portion of the piping above the suspended ceiling 5 (not shown in fig. 2) includes at least: a first bent portion 21 and a second bent portion 22. The second bent portion 22 is located downstream of the first bent portion 21 in the fluid flowing direction, the second bent portion 22 is formed by bending in the height direction and/or bending in the horizontal direction, the second bent portion 22 includes a first pipe 221 and a second pipe 222 located downstream of the first pipe 221 in the fluid flowing direction, and the second pipe 222 faces a wall surface close to the air intake device 1.

This application has good noise reduction effect through setting up pipeline 2 at least part in the top of furred ceiling 5. In addition, the lampblack absorber of this application is through setting up first portion of bending 21 and the second portion of bending 22, can guarantee that this updraft ventilator 3 and inlet scoop 10 on the hot blast blowpipe apparatus 1 are not the straight-line intercommunication to the propagation path of noise has further been increased. The oil smoke can utilize the first bending part 21 and the second bending part 22 to reflect or attenuate the noise generated when the fan works in the process of flowing along the pipeline 2 provided with the first bending part 21 and the second bending part 22, so that the attenuation of the noise in the propagation process is increased, the noise propagated to the air suction opening 10 side of the air inlet device 1 can be reduced as much as possible, and the better use experience of a user is ensured. In addition, less to the distance between first bending portion 21 to updraft ventilator 3, under the comparatively harsh operating mode of installation environment of pipeline 2, set up the second bending portion 22 and can rationally arrange pipeline 2 in furred ceiling 5 top to promote the compatibility of split type lampblack absorber installation in furred ceiling 5 top.

In this embodiment, the first bending portion 21 and the second bending portion 22 may be detachably connected, or may be integrally formed. When the first bending portion 21 and the second bending portion 22 are integrally formed, they may be formed by bending the same flexible tube.

In some embodiments, as shown in fig. 2, the second bend 22 is located downstream of the first bend 21 in the direction of fluid flow. The first bend 21 may be used mainly to change the extending direction of the primary pipe 2. Specifically, to the installation environment in which the suspended ceiling 5 is provided, the first bent portion 21 may guide the pipeline 2 located below the suspended ceiling 5 to the ceiling 5 above. The second bending portion 22 is formed by bending in the height direction and/or bending in the horizontal direction, and specifically, the second bending portion 22 may be formed by bending in the horizontal direction (as shown in fig. 2); further, the second bent portion 22 may be formed to be bent in the height direction (not shown in fig. 2); furthermore, the second bending portion 22 may be bent in the height direction and the horizontal direction at the same time, and the overall extending direction of the second bending portion 22 may not be on the same horizontal plane nor on the same vertical plane, that is, may extend in a three-dimensional space (not shown in fig. 2). In general, the specific arrangement and the overall shape of the second bending portion 22 can be adaptively adjusted according to the actual installation environment, and the description of the present application does not exemplify the specific arrangement and the overall shape.

In some embodiments, as shown in fig. 2, the second bending portion 22 may include a first pipe 221 and a second pipe 222 located downstream of the first pipe 221 in the fluid flow direction, the second pipe 222 facing a wall surface near the air intake device 1; alternatively, the second tube 222 of the second bend 22 is oriented toward the exhaust assembly 3 (not shown in FIG. 2).

From this, utilize the second portion of bending 22 to pass through, especially will be located the second pipeline 222 orientation of low reaches and be close to the wall of hot blast blowpipe apparatus 1, perhaps utilize the second pipeline 222 orientation updraft ventilator 3 of the second portion of bending 22, be favorable to with the flue gas in the pipeline 2 with rationalized route direction updraft ventilator 3, compromise the noise reduction effect simultaneously.

In some embodiments, the first tube 221 of the second bend 22 extends away from the wall surface. When the first pipe 221 extends in a direction away from the wall surface, the second pipe 222 may be formed to face the second bending portion 22 of the wall surface close to the air inlet device 1 by using a limited installation space. When first portion of bending 21 and the second portion of bending 22 are in furred ceiling 5 top, first portion of bending 21 and updraft ventilator 3's transverse distance often is very limited, in the limited space of the aforesaid, can carry out reasonable transition with first portion of bending 21 and updraft ventilator 3 through second portion of bending 22, when guaranteeing noise reduction effect through two portions of bending, can also promote the compatibility of split type lampblack absorber installation in furred ceiling 5 top.

In some embodiments, as shown in fig. 2, the first bending portion 21 is formed bent away from the wall surface, i.e., the final section of the first bending portion 21 is toward the user side. The first pipe 221 of the second bending portion 22 may be integrally formed with the first bending portion 21 or detachably connected to the first bending portion, and the second pipe 222 of the second bending portion 22 faces the wall surface.

In some embodiments, the conduit 2 is mounted at least partially above the ceiling 5. In limited furred ceiling 5 is high, if pipeline 2 needs to guarantee the noise reduction effect of lampblack absorber especially components of a whole that can function independently lampblack absorber, then need be highly interior the bending of limited furred ceiling, for example with the first portion of bending 21 that is located furred ceiling 5 top as an example, first portion of bending 21 can be forward bending, also can be left or right bending. Taking the first bending portion 21 as an example of bending forward, the longitudinal dimension of the pipeline 2 is limited by the height of the suspended ceiling 5 and cannot be too large, and taking the first bending portion 21 as an example of bending leftward or rightward, the transverse dimension of the pipeline 2 is limited by the height of the suspended ceiling 5 and cannot be too large. Thus, the cross-sectional area of the pipeline 2 is limited regardless of the bending mode; meanwhile, the pipeline 2 is also required to be in butt joint with the air intake device 1, and in order to ensure proper air quantity, the pipeline 2 with the cross-sectional area of the air intake device 1 limited relative to the cross-sectional area is large. Therefore, the range hood 100 is further provided with an adapter 4, the adapter 4 is arranged between the pipeline 2 and the air intake device 1, and the adapter 4 is provided with a first connecting portion 41 and a second connecting portion 42.

In a further embodiment, the cross-section of the first connecting portion 41 has a first transverse dimension and a first longitudinal dimension, and the cross-section of the second connecting portion 42 has a second transverse dimension and a second longitudinal dimension, the second longitudinal dimension being smaller than the first longitudinal dimension (as shown in fig. 3, the direction of the arrow is the longitudinal direction), and/or the second transverse dimension being smaller than the first transverse dimension, wherein the design of making the second longitudinal dimension smaller than the first longitudinal dimension is mainly directed to the case of a forward bending of the first bending portion 21 of the pipeline 2 (as shown in fig. 2), the design of making the second transverse dimension smaller than the first transverse dimension is mainly directed to the case of a leftward or rightward bending of the first bending portion 21 of the pipeline 2, naturally, it is also possible to make the second transverse dimension smaller than the first transverse dimension and make the second longitudinal dimension smaller than the first longitudinal dimension, the suitability of the installation can thus be further improved.

In some embodiments, the second longitudinal dimension of the second connecting portion 42 is smaller than the first longitudinal dimension of the first connecting portion 41, and the second longitudinal dimension of the second connecting portion 42 matches the longitudinal dimension of the air inlet of the pipeline 2, and the first longitudinal dimension of the first connecting portion 41 matches the longitudinal dimension of the outlet 1101 of the box 11 of the air intake device 1.

Optionally, taking the first bending portion 21 as an example of being bent toward the left side or the right side of the wall surface, the second transverse dimension of the second connecting portion 42 is smaller than the first transverse dimension of the first connecting portion 41, and the second transverse dimension of the second connecting portion 42 is matched with the transverse dimension of the air inlet of the pipeline 2, and the first transverse dimension of the first connecting portion 41 is matched with the transverse dimension of the outlet 1101 of the box 11 of the air inlet device 1.

Optionally, the second longitudinal dimension and the second transverse dimension of the second connecting portion 42 are both smaller than the first longitudinal dimension and the first transverse dimension of the first connecting portion 41, the second longitudinal dimension and the second transverse dimension of the second connecting portion 42 are matched with the longitudinal dimension and the transverse dimension of the air inlet of the pipeline 2, and the first longitudinal dimension and the first transverse dimension of the first connecting portion 41 are matched with the longitudinal dimension and the transverse dimension of the outlet 1101 of the box 11 of the air inlet device 1.

Therefore, under the condition that the installation space of the upper part of the suspended ceiling 5 is limited and the cross sectional area of the pipeline 2 is smaller than that of the outlet 1101 of the box body 11, the pipeline 2 is communicated with the air inlet device 1 through the adapter 4, and the convenience and the compatibility of pipeline installation and pipeline and air inlet device connection are improved.

In some embodiments, as shown in fig. 3, a side surface between the first connection portion 41 and the second connection portion 42, which may be the first inclined surface 411, forms a first predetermined included angle with the horizontal plane, where the first predetermined included angle is not equal to 90 degrees.

In some embodiments, the air intake device 1 is provided with an air intake opening 10. In some embodiments, as shown in fig. 1, the air intake device 1 further has a housing 11 and a smoke collection chamber, an outlet 1101 of the housing 11 is connected to the first connection portion 41 of the adaptor 4, and an inlet 1102 of the housing 11 is connected to the smoke collection chamber. In some embodiments, the outlet 1101 of the tank 11 has an area dimension that is close to or equal to the area dimension of the inlet 1102 of the tank 11. In some embodiments, the cross-section or longitudinal section of the box 11 matches the size of the fan of the air extraction 3, and a filter device (not shown in fig. 1) is provided inside the box 11.

In some specific embodiments, the box 11 is originally used for accommodating the fan, but when the fan is separated from the air intake device 1, a space large enough for accommodating the filtering device is left in the box 11. Specifically, the smoke collecting cavity guides the oil smoke sucked by the suction opening 10 to the inlet 1102 of the box body 11, the oil smoke passes through the filtering device arranged in the box body 11 and is guided into the adaptor 4 through the outlet 1101 of the box body 11, and then the adaptor 4 discharges the oil smoke to the common flue through the pipeline 2 and the air exhaust device 3. Optionally, this filter equipment includes two at least filter discs, and these two at least filter discs are V style of calligraphy and set up towards inlet scoop 10 and symmetry, through be provided with this filter equipment in box 11, can effectual filtration this box 11 interior oil smoke for arrange to the greasy dirt reduction in the oil smoke in adaptor 4 and the pipeline 2, improve adaptor 4 and pipeline 2's life.

In some embodiments, as shown in fig. 1, since the pipeline 2 is partially installed above the ceiling 5, the cross-sectional area of the pipeline 2 is limited by the installation space above the ceiling 5, in order to ensure the air volume of the range hood, the air volume introduced into the pipeline 2 needs to be increased, by setting the size of the cross-sectional area of the outlet 1101 of the box body 11 to be close to or equal to the size of the cross-sectional area of the inlet 1102 of the box body 11, smooth communication of the flow passage in the box body 11 is achieved, and compared with the scheme that the existing computer board needs to occupy the top board space, the oil smoke air volume of the air intake device 1 can be effectively ensured, thereby increasing the oil smoke discharge efficiency.

In some embodiments, as shown in FIG. 2, the cross-sectional area of the outlet 1101 of the housing 11 is sized to be close to or equal to the cross-sectional area of the inlet 1102 of the housing 11, occupying the prior art mounting position of a computer board disposed on the outlet 1101 of the housing 11.

In some embodiments, as shown in fig. 3, the range hood 100 of the present application further includes an electrical box 6, and the electrical box 6 is disposed on the outer surface of the adaptor 4, so that the installation problem of the electrical box 6 is solved, the electrical box 6 can be better isolated from the smoke inside the range hood, and the reliability of the electrical box 6 is ensured.

In some further embodiments, in order to ensure the convenience of installing the pipeline 2 of the range hood, especially the split range hood, above the ceiling 5 and the connection of the pipeline 2 with the air intake device 1 and the air volume of the range hood, the second longitudinal dimension of the cross section of the second connecting portion 42 is smaller than the first longitudinal dimension of the cross section of the first connecting portion 41 to form a first inclined surface 411 on the outer surface, the electrical box 6 may be further disposed on the first inclined surface 411 (as shown in fig. 3), or the second transverse dimension of the cross section of the second connecting portion 42 is smaller than the first transverse dimension of the cross section of the first connecting portion 41 to form a second inclined surface on the outer surface, and the electrical box 6 may also be disposed on the second inclined surface. As shown in fig. 3, taking as an example that the second longitudinal dimension of the cross section of the second connecting portion 42 is smaller than the first longitudinal dimension of the cross section of the first connecting portion 41, a first inclined surface 411 is formed between the first connecting portion 41 and the second connecting portion 42, the longitudinal dimension of the cross section of the first inclined surface 411 is gradually reduced along the vertical direction from the first connecting portion 41 to the second connecting portion 42, and the electric appliance box 6 is disposed on the first inclined surface 411. Therefore, the electrical box 6 can be disposed on the first inclined surface 411 or the second inclined surface, and compared with a scheme of placing the electrical box 6 on other surfaces, the volume can be smaller, and the structure is more integrated.

In some further embodiments, the sum of the longitudinal dimension of the cross-section of the electrical box 6 and the longitudinal dimension of the cross-section of the first ramp 411 is less than or equal to the first longitudinal dimension of the cross-section of the first connection portion 41. In addition, the present application is not exemplified here, as for the mounting manner of the electrical box 6 in the case where the second lateral dimension of the cross section of the second connecting portion 42 is smaller than the first lateral dimension of the cross section of the first connecting portion 41, similarly to the embodiment of fig. 3.

Therefore, even if the electrical box 6 is installed on the adapter 4, the longitudinal size or the transverse size of the cross section of the adapter 4 cannot be increased, and the convenience and the compatibility of the installation of the adapter 4 in the range hood are further ensured under the condition that the installation space is limited; in addition, the electrical box 6 is arranged on the first inclined plane 411 or the second inclined plane, so that the size of the cross-sectional area of the outlet 1101 of the box body 11 can be set to be close to or equal to the size of the cross-sectional area of the inlet 1102 of the box body 11, and further the air exhaust space inside the adapter 4 is enlarged, so that the amount of oil smoke sucked by the air inlet device 1 and guided into the pipeline 2 is ensured, and the air volume of the split type range hood is improved.

In some embodiments, the electrical box 6 further has a mounting portion 61 and a cover plate 62 (shown in fig. 3), wherein the mounting portion 61 is integrally formed with the outer surface of the adaptor 4 or the mounting portion 61 is detachably mounted to the outer surface; a space for accommodating the circuit board is formed between the cover plate 62 and the mounting portion 61.

Specifically, as shown in fig. 3, the mounting portion 61 is integrally formed with the first inclined surface 411 of the adaptor 4. Optionally, the mounting portion 61 may also be detachably mounted on the first inclined surface 411 of the adaptor 4, for example, by providing a screw hole and/or a card hole on the first inclined surface 411, and connecting the back plate of the mounting portion 61 opposite to the first inclined surface 411 with the screw hole through a screw and/or connecting with the card hole through a card seat; or detachably attached by adhering the back plate of the mounting part 61 opposite to the first inclined surface 411, which is not limited in this application.

In some embodiments, as shown in fig. 3, the mounting portion 61 has an opening portion, and the cover plate 62 is provided in a size that can cover the opening portion. In addition, be formed with the space that holds the circuit board between apron 62 and the installation department 61, the inside circuit that sets up on this circuit board that has of installation department 61, this circuit connection has the control wire that is used for controlling the display screen of fan and/or lampblack absorber and is used for the electric power electric wire of connecting the power, and this control wire and/or this electric power electric wire wear out from the through-hole or the opening of the both sides of installation department 61. The mounting portion 61 is provided with a screw hole and/or a clamping hole, and the cover plate 62 is connected with the screw hole through a screw or connected with the clamping hole through a clamping seat. Thereby, the electrical box 6 and the circuit board are provided on the adaptor 4. And, set up electrical apparatus box 6 on first inclined plane 411 or the second inclined plane, namely, set up on the surface of adaptor 4, can guarantee that electrical apparatus box and circuit board do not receive the oil smoke pollution.

In one embodiment, as shown in fig. 4, the second connection portion 42 is connected to the pipeline 2 by the connection member 7, one end of the connection member 7 is connected to the second connection portion 42, and the other end of the connection member 7 is connected to the pipeline 2.

The connecting piece 7 can be connected with the second connecting part 42 and/or the pipeline 2 in an integrated forming mode; and/or the connecting element 7 can also be connected to the second connecting part 42 and/or the line 2 in a detachable manner.

In the present embodiment, the connecting member 7 may be provided between the second connecting portion 42 and the pipeline 2 by a detachable connection manner. Specifically, the detachable connection mode can be that quick-connection interfaces are respectively arranged at the positions where the connecting piece 7, the second connecting part 42 and the pipeline 2 are matched, and sealing connection can be efficiently realized by pairwise butt joint; or, a screw connection can be further arranged on the basis of the quick-connection joint so as to ensure the reliability of the connection position; the detachable connection may also be a sealed connection by means of adhesive tape at the point where the connector 7 and the pipe 2 are mated. In addition, the detachable connection manner may also be other manners capable of achieving a sealed connection, and the application is not limited in particular herein.

Therefore, the pipeline 2 is connected with the adapter 4 through the connecting piece 7, and a part of the pipeline 2 is more stably arranged above the suspended ceiling 5.

On the whole, the lampblack absorber that provides in this specification, on the basis of guaranteeing noise reduction effect, synthesizes the installation environment that the user is actual, in order to reduce the required installation space who occupies of this lampblack absorber as far as possible, guarantees this lampblack absorber and user's installation environment's suitability, can promote split type lampblack absorber's pipeline installation's convenience and compatibility. In addition, the adapter is arranged in the split type range hood, so that the pipeline and the air inlet device can be butted in a limited installation space, the oil smoke sucked from the air suction port is guided into the pipeline through the adapter, the convenience and compatibility of pipeline installation in the limited space can be improved on the basis of ensuring the noise reduction effect, and the air volume of the split type range hood is ensured; in addition, the pipeline and the hot blast blowpipe apparatus of this application can need not be as an organic whole structure, more make things convenient for components of a whole that can function independently packing and transportation, when components of a whole that can function independently lampblack absorber need be installed at user's house, accessible adaptor realizes being connected between pipeline and the hot blast blowpipe apparatus, has also made things convenient for the change of the part of components of a whole that can function independently lampblack absorber simultaneously, for example when the hot blast blowpipe apparatus is changed to needs, can not change the pipeline through dismantling the adaptor, promotes and changes efficiency.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is mainly described as being different from other embodiments, and the differences may be arbitrarily combined with each other.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (12)

1. A range hood, characterized in that the range hood comprises:

an air inlet device provided with an air suction opening;

the air draft device is arranged separately from the air inlet device and is connected with the air inlet device through a pipeline;

the adapter is arranged between the air inlet device and the pipeline and provided with a first connecting part connected with the air inlet device and a second connecting part connected with the pipeline.

2. A range hood as claimed in claim 1, characterized in that the cross section of the first connection portion has a first transverse dimension and a first longitudinal dimension, and the cross section of the second connection portion has a second transverse dimension and a second longitudinal dimension, the second longitudinal dimension being smaller than the first longitudinal dimension, and/or the second transverse dimension being smaller than the first transverse dimension.

3. A range hood as set forth in claim 2, characterized in that said duct is disposed at least partially above the ceiling.

4. A range hood as set forth in claim 3, characterized in that the ducting above the ceiling comprises at least: first bending part and the second bending part, the second bending part is located on the fluid flow direction the low reaches of first bending part, the second bending part is bent in the direction of height and is formed and/or bend in the horizontal direction and form, the second bending part includes first pipeline and is located on the fluid flow direction the second pipeline in first pipeline low reaches, the second pipeline orientation is close to air inlet unit's wall.

5. The range hood according to claim 4, wherein the first bent portion is bent away from the wall surface.

6. The range hood of claim 3, wherein the air intake device further comprises:

the outlet of the box body is connected with the first connecting part, and the inlet of the box body is connected with the smoke collecting cavity.

7. The range hood according to claim 6, wherein the cross section or the longitudinal section of the box body is matched with the size of a fan of the air draft device, and a filtering device is arranged in the box body.

8. A range hood as set forth in claim 6, wherein the outlet has an area dimension that is close to or equal to the area dimension of the inlet.

9. A range hood as claimed in any one of claims 1 to 8, further comprising a connecting member connecting the second connecting portion and the pipeline, wherein one end of the connecting member is detachably connected with the second connecting portion, and the other end of the connecting member is connected with the pipeline.

10. A range hood as claimed in any one of claims 1 to 8, further comprising:

and the electrical box is arranged on the outer surface of the adapter.

11. The range hood of claim 10, wherein a second longitudinal dimension of a cross section of the second connecting portion is smaller than a first longitudinal dimension of a cross section of the first connecting portion to form a first slope on the outer surface, the appliance box being disposed on the first slope,

or the second transverse dimension of the cross section of the second connecting part is smaller than the first transverse dimension of the cross section of the first connecting part so as to form a second inclined surface on the outer surface, and the electrical box is arranged on the second inclined surface.

12. A range hood as set forth in claim 10, wherein said appliance box has:

a mounting portion integrally formed with the outer surface or detachably mounted to the outer surface;

and a cover plate having a space for accommodating the circuit board formed therebetween.

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