CN220038574U - Fume exhauster - Google Patents

Abstract

The utility model relates to a range hood, comprising: the smoke collecting hood is provided with a smoke collecting cavity and an air inlet for external smoke to enter the smoke collecting cavity; the air duct is connected with the smoke collecting cavity of the smoke collecting cover; the air flue comprises an air flue body, a storage cabinet arranged at the periphery of the air flue body, and a heat conduction part which is at least partially constructed to be easy to transfer heat emitted by the flue gas in the air flue to the inside of the storage cabinet is arranged on the side wall area of the air flue body, which corresponds to the inner space of the storage cabinet. The advantages are that: the range hood can keep the temperature in the storage cabinet relatively high so as to dry the articles placed in the storage cabinet or keep the temperature of dishes.

Description

Fume exhauster

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a range hood.

Background

A range hood is a kitchen appliance that purifies the kitchen environment. Generally, a range hood comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more wide application due to the advantages of neatness, light weight, small occupied space and the like. The top suction type range hood generally comprises a fume collecting hood and a fan shell positioned on the fume collecting hood, wherein a volute, an impeller and a motor for driving the impeller are arranged in the fan shell. However, the fan part of the existing range hood is relatively large in size, occupies a large space in a kitchen, is arranged right above a gas stove, and is inconvenient for users to bump and throw a pan when cooking. In addition, the fan part of the range hood is very close to the user, the working noise of the range hood is relatively large, and the cooking environment and the life quality of the user are negatively affected.

For this reason, a ceiling fan system has been developed, which is installed in a ceiling so that the fan system is far from the human ear as a noise source, and a cabinet space is saved, so that the range hood of this type has become popular. For example, chinese patent application No. CN202222214855.7 (issued to the public No. CN 218295886U) discloses a range hood, which includes an air intake assembly, a fan frame for setting a fan system, and a connection hose for connecting the air intake assembly and the fan frame, the air intake assembly includes a fume collecting hood and a box extending upward from the top of the fume collecting hood, the box is hollow with openings at the upper and lower ends, and the lower end of the connection hose is connected with the box, thereby facilitating installation through a sectional structure. The fan frame is used for setting up in the furred ceiling, and the size in the box fore-and-aft direction is less than the collection petticoat pipe and arranges in the position that is close to collection petticoat pipe rear side, the top of collection petticoat pipe is located the front side of box and has arranged the thing cabinet.

The range hood in the above patent application has a certain defect, the storage cabinet arranged on the box body (namely, a part of the air duct) only utilizes the space of the storage cabinet to store articles, and if articles such as tableware and food in the storage cabinet are placed in the hanging cabinet for a long time, the articles are easy to be polluted by bacteria, especially because of the special use environment of the kitchen space, the kitchen cabinet is easier to be wet, and the kitchen cabinet is easy to mildew for a long time, which is unfavorable for storing the articles. On the other hand, the storage cabinet basically has no heat preservation function, and after the finished dishes are placed in the storage cabinet, the dishes are covered by corresponding vessels to preserve heat, so that the storage cabinet is quite inconvenient.

Therefore, the existing range hood needs to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a range hood capable of keeping a relatively high temperature in a locker to dry articles placed in the locker or keep dishes warm.

The technical scheme adopted for solving the technical problems is as follows: a range hood, comprising:

the smoke collecting hood is provided with a smoke collecting cavity and an air inlet for external smoke to enter the smoke collecting cavity;

the air duct is connected with the smoke collecting cavity of the smoke collecting cover;

the air flue comprises an air flue body, a storage cabinet arranged at the periphery of the air flue body, and a heat conduction part which is at least partially constructed to be easy to transfer heat emitted by the flue gas in the air flue to the inside of the storage cabinet is arranged on the side wall area of the air flue body, which corresponds to the inner space of the storage cabinet.

Generally, the cabinet may have an independent side wall structure attached to the air duct, but the arrangement of the independent side wall of the cabinet affects the heat transfer efficiency to a certain extent, and in order to further improve the heat transfer efficiency, the side wall area of the air duct corresponding to the internal space of the cabinet forms a part of the wall of the cabinet.

In order to increase the storage space, the storage cabinet comprises a front cabinet part positioned at the front part of the air duct and two side cabinet parts which extend backwards from the left side and the right side of the front cabinet and are respectively arranged at the left side and the right side of the air duct.

In order to increase the heat transfer area between the side wall parts of the air duct corresponding to the inner spaces of the front cabinet and the side wall parts corresponding to the inner spaces of the two side cabinets as much as possible, the heat conducting parts are arranged on the side wall parts.

The heat conducting part of the air duct can be made of various existing materials with high heat transfer coefficients, but in order to prolong the service life and reduce the cost, the side wall part corresponding to the heat conducting part of the air duct is a metal layer. For example, the metal layer may be an aluminum alloy.

In order to reasonably arrange the inner space of the storage cabinet, the air duct is vertically extended, the storage cabinet is provided with at least two interlayer which are sequentially arranged in the up-down direction, and the heat conducting part is arranged on the area, corresponding to the inner space of the interlayer at the lowest layer of the storage cabinet, of the air duct.

The lower layer of the storage cabinet is relatively low in height, so that a user can conveniently take and put the storage cabinet at any time, and the storage cabinet can be used as a dish heat-insulating cabinet. The oil smoke that produces in the culinary art in-process has a large amount of heats, can effectively utilize the recovery, heats the locker lower floor. The upper layer of the locker is not suitable for users to operate frequently due to the height, so that the locker is suitable for placing some unusual tools and vessels, namely, the locker is used as a conventional storage cabinet.

In order to reduce heat dissipation in unnecessary areas on the air duct and improve the heat utilization rate, the air duct is integrally provided with a metal layer, and a heat insulation layer is arranged on a side wall area of the air duct, which corresponds to the inner space of other interlayer except the interlayer at the lowest layer of the storage cabinet.

The design of the heat preservation and insulation layer enables heat on the air channel wall to be transferred to the air channel part corresponding to the lowest interlayer as far as possible (the heat conduction principle is that a high temperature area flows to a low temperature area, and the air channel part corresponding to the lowest interlayer is low in heat quantity because the heat is emitted to the inside of the heat preservation cabinet, so that the heat is used as the low temperature area), and the heat recovery of the air channel is more sufficient.

As an improvement, an electric heating element for transferring heat to the internal space of the storage cabinet is also arranged in the storage cabinet. If the user does not cook, the locker also can independently work and be used as the heat preservation cabinet, utilizes the electrical heating piece to generate heat to reach the heat preservation purpose promptly.

In order to further improve the intelligent experience of the heat preservation of the cabinet of the range hood, the range hood further comprises a temperature sensor for detecting the temperature in the cabinet, the temperature sensor is electrically connected with a control system of the range hood, thereby, when the temperature in the storage cabinet is lower than a first set temperature, the electric heating element is started, and when the temperature in the storage cabinet is higher than a second set temperature, the electric heating element is closed.

When the temperature generated by the heat recovered by the air duct can not reach the temperature interval K1-K2 set by a user, the electric heating part in the storage cabinet starts to start to work so as to play a role in auxiliary heating until reaching the temperature interval set by the user;

if the user does not cook, the locker also can independently work and be used as the heat preservation cabinet, utilizes the electrical heating piece to generate heat to reach the heat preservation purpose promptly.

After the electric heating element is started, if the working temperature in the storage cabinet is too high and exceeds the temperature interval K1-K2 set by a user, the electric heating element of the storage cabinet can stop working for effective energy saving.

In order to avoid the problems of space occupation and noise reduction of the fan system, the air conditioner further comprises a fan system which is arranged in a cabinet, in a suspended ceiling or outside an outer wall of the kitchen and is connected with an air outlet port of the air duct.

In order to avoid the problem of environmental pollution caused by direct discharge of oil smoke into the atmosphere, a filter assembly for filtering the smoke is further arranged at an air outlet of the fan system.

Compared with the prior art, the utility model has the advantages that: the cabinet is arranged on the periphery of the air duct, at least part of the side wall area corresponding to the inner space of the cabinet on the air duct is set to be a heat conduction part which is easy to transfer heat emitted by smoke in the air duct into the cabinet, namely, the heat of the smoke in the air duct is fully utilized, so that the cabinet is kept at a relatively high temperature, articles such as tableware in the cabinet can be dried, the problem of damp and mildew is avoided, meanwhile, the cooked dishes can be placed in the storage cabinet to achieve the aim of heat preservation, additional heat preservation vessels are not required to be additionally arranged, and the use experience of users is improved.

Drawings

Fig. 1 is a schematic perspective view illustrating an arrangement state of a range hood in a kitchen environment according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a range hood according to an embodiment of the present utility model;

fig. 3 is a cross-sectional perspective view of a main body of a range hood according to an embodiment of the present utility model, taken along a front-rear direction.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Referring to fig. 1-3, a range hood includes a fan system 10, an air duct 20, a hood 30, and a locker 40. The air inlet port of the fan system 10 may be connected to the air outlet 11 at the top of the fume collection hood 30 via an air duct 20 (in combination with the fume exhaust duct 24). The fan system 10 may be located in a suspended ceiling 51 of the kitchen, hidden in a cabinet 52 above the cooktop, or located directly on an exterior wall 53 of the kitchen as shown in fig. 1.

The fan system 10 generally includes a housing and a centrifugal fan disposed in the housing, wherein a region of the housing opposite to an outlet of the centrifugal fan is provided with a filter assembly 12 for filtering the oil smoke, so as to avoid the problem of environmental pollution caused by direct discharge of the oil smoke into the atmosphere.

The fume collecting hood 30 of the present embodiment has a fume collecting cavity 300 extending vertically, and the left-right dimension, the up-down dimension of the fume collecting hood 30 is larger than the dimension of the fume collecting hood in the front-back direction, namely, the thin fume collecting hood with relatively small front-back depth. The bottom of the front side wall of the fume collecting hood 30 is provided with an air inlet 31 which extends left and right, and a fume baffle 32 which can open and close the air inlet 31 is arranged at the air inlet 31 of the fume collecting hood 30.

Because the fan system 10 is disposed on the outer wall 53, the air duct 20 of this embodiment is relatively elongated, and extends into the ceiling 51 at its upper end and is connected to the inlet of the external fan system 10 via the laterally extending smoke exhaust duct 24. The duct 20 of this embodiment is preferably disposed in a vertical extension (the vertical extension herein may refer to a vertical direction perpendicular to a horizontal plane or may be slightly inclined with respect to a vertical plane) as a whole. In order to reserve space for installing the storage cabinet 40 in the front of the air duct 20 as much as possible, and to avoid the space pressing feeling of the user caused by too protruding forward after installing the storage cabinet 40, the cross section of the air duct 20 in this embodiment is rectangular, and the dimension of the air duct 20 in the left-right direction is larger than the dimension in the front-rear direction, so that the whole air duct 20 is flat.

The locker 40 is located above the fume collecting hood 30 and is disposed at the periphery of the air duct 20. Specifically, the stowage bin 40 of the present embodiment may be positioned side-by-side with other cupboards 40 of the kitchen.

The fume collecting hood 30 is generally provided to be attached to a wall, and correspondingly, in order to increase the heat transfer area with the air duct 20 as much as possible, the locker 40 of the present embodiment includes a front cabinet portion 41 located at the front of the air duct 20 and two side cabinet portions 42 extending rearward from the left and right sides of the front cabinet portion 41 and disposed at the left and right sides of the air duct 20, respectively. The inner space of the front cabinet portion 41 communicates with the inner spaces of the two side cabinet portions 42.

The portion of the inner side of the cabinet 40 corresponding to the air duct 20 in this embodiment is open, so that after the cabinet 40 is disposed at the periphery of the air duct 20, the air duct 20 itself forms the inner side wall of the cabinet 40. The locker 40 has at least two compartments 43 sequentially arranged in the up-down direction, as shown in fig. 3, the locker 40 of this embodiment shows the upper and lower compartments 43, wherein the lower compartment 43 is used as a thermal insulation cabinet and the upper compartment 43 is used as a conventional locker 40 for convenience of users to take articles at any time. Correspondingly, the air duct 20 is made of metal materials, such as aluminum alloy materials with good heat conduction effect, wherein, in order to reduce heat dissipation in unnecessary areas (such as the upper interlayer 43 of the storage cabinet 40) on the air duct 20 and improve the heat utilization rate, the side wall area of the air duct 20 corresponding to the inner space of the upper interlayer 43 of the storage cabinet 40 is provided with the heat insulation layer 23, so that the heat dissipation of the flue gas is reduced and transferred to the upper interlayer 43, and the side wall area of the air duct 20 corresponding to the inner space of the lower interlayer 43 of the storage cabinet 40 is not required to be provided with the heat insulation layer 23. The side walls of the air duct 20 corresponding to the interior space of the lower compartment 43 (including the front cabinet portion 41 and the side cabinet portions 42) themselves constitute the heat conducting portion 22 of the air duct 20.

The design of the heat-insulating layer 23 makes the heat on the wall of the air duct 20 transfer to the air duct 20 corresponding to the lower interlayer 43 as much as possible, so that the heat recovery of the air duct 20 is more sufficient. The heat conduction principle is that the high temperature region flows to the low temperature region, and the part of the air duct 20 corresponding to the lower interlayer 43 is used as the low temperature region because the heat is emitted into the interlayer 43 and the heat is low.

The cabinet 40 also has electrical heating elements 44 disposed therein for transferring heat to the interior space of the cabinet 40. Specifically, the electric heating element 44 may be an electric heating tube, which may be disposed on the bottom wall of the lower interlayer 43, that is, radiate heat from below. A temperature sensor 45 is also provided within the cabinet 40, the temperature sensor 45 being electrically connected to a control system of the range hood such that the electric heating element 44 is activated when the temperature within the cabinet 40 is below a first set temperature and the electric heating element 44 is deactivated when the temperature within the cabinet 40 is above a second set temperature. Specifically, when the temperature generated by the heat recovered by the air duct 20 cannot reach the temperature interval K1-K2 set by the user, the temperature sensor 45 recognizes the temperature interval and transmits a signal to the control system, so that the electric heating element 44 in the storage cabinet 40 starts to start to work, and plays a role in auxiliary heating until reaching the temperature interval set by the user. After the electric heating element 44 is started, if the working temperature in the storage cabinet 40 is too high and exceeds the temperature interval K1-K2 set by the user, the temperature sensor 45 recognizes the working temperature and transmits a signal to the control system, so that the electric heating element 44 of the storage cabinet 40 stops working, and the aim of saving energy is achieved. If the user does not cook, the storage cabinet 40 can also be independently used as a heat preservation cabinet, namely, the electric heating part 44 is utilized to generate heat to achieve the purpose of heat preservation.

The range hood of this embodiment arranges the locker 40 in the periphery of wind channel 20 to set up the heat conduction portion 22 that easily transmits the heat that the flue gas gives off in the wind channel 20 to the locker 40 with the at least part of the lateral wall region that corresponds with the inner space of locker 40 on the wind channel 20, can make full use of the heat of flue gas in the wind channel 20 from this, make the locker 40 keep relatively higher temperature, so, both can dry articles such as tableware in the locker 40, avoid the problem of getting damp and mould, simultaneously, put the dish that the culinary art is accomplished into above-mentioned placing cabinet and also can reach the heat preservation purpose, need not to add extra heat preservation household utensils again, improved user's use experience.

Claims (11)

1. A range hood, comprising:

a smoke collecting cover (30) which is provided with a smoke collecting cavity (300) and an air inlet (31) for external smoke to enter the smoke collecting cavity (300);

the air duct (20) is connected with the smoke collecting cavity (300) of the smoke collecting cover (30);

the method is characterized in that: the flue gas treatment device further comprises a storage cabinet (40) arranged at the periphery of the air flue (20), wherein a side wall area of the air flue (20) corresponding to the inner space of the storage cabinet (40) is provided with a heat conducting part (22) which is at least partially constructed to be easy to transfer heat emitted by flue gas in the air flue (20) into the storage cabinet (40).

2. The range hood of claim 1, wherein: the side wall region of the air duct (20) corresponding to the interior space of the storage cabinet (40) forms a part of the wall of the storage cabinet (40).

3. The range hood of claim 1, wherein: the locker (40) includes a front cabinet portion (41) located at the front of the duct (20) and two side cabinet portions (42) extending rearward from the left and right sides of the front cabinet portion (41) and disposed at the left and right sides of the duct (20), respectively.

4. A range hood according to claim 3, wherein: the side wall parts of the air duct (20) corresponding to the inner spaces of the front cabinet part (41) and the side wall parts corresponding to the inner spaces of the two side cabinet parts (42) are respectively provided with the heat conducting parts (22).

5. The range hood according to any one of claims 1 to 4, wherein: the side wall part corresponding to the heat conduction part (22) of the air duct (20) is a metal layer.

6. The range hood according to any one of claims 1 to 4, wherein: the air duct (20) is vertically extended, the storage cabinet (40) is provided with at least two interlayer (43) which are sequentially arranged in the up-down direction, and the heat conduction part (22) is arranged on the area of the air duct (20) corresponding to the inner space of the interlayer (43) at the lowest layer of the storage cabinet (40).

7. The range hood of claim 6, wherein: the air duct (20) is integrally made of a metal layer, and a heat insulation layer (23) is arranged on a side wall area of the air duct (20) corresponding to the inner space of other interlayer (43) except the interlayer (43) at the lowest layer of the storage cabinet (40).

8. The range hood according to any one of claims 1 to 4, wherein: the storage cabinet (40) is also provided with an electric heating element (44) for transferring heat to the internal space of the storage cabinet (40).

9. The range hood of claim 8, wherein: the temperature sensor (45) is used for detecting the temperature in the storage cabinet (40), and the temperature sensor (45) is electrically connected with a control system of the range hood, so that the electric heating element (44) is started when the temperature in the storage cabinet (40) is lower than a first set temperature, and the electric heating element (44) is closed when the temperature in the storage cabinet (40) is higher than a second set temperature.

10. The range hood according to any one of claims 1 to 4, wherein: the air conditioner further comprises a fan system (10), wherein the fan system (10) is arranged in a cabinet (52), in a suspended ceiling (51) or outside an outer wall (53) of the kitchen and is connected with an air outlet port of the air duct (20).

11. The range hood of claim 10, wherein: and a filtering component (12) for filtering the flue gas is further arranged at the air outlet (11) of the fan system (10).