CN216521881U - Fume exhaust fan - Google Patents

Abstract

The utility model relates to the technical field of kitchen appliances, and discloses a range hood which comprises a fume collecting hood, a heat transfer plate and a heating element, wherein an installation groove is formed in the upper surface of the fume collecting hood, the heat transfer plate is arranged in the installation groove, the heating element is arranged at the bottom of the installation groove, and the heating element is in heat conduction connection with the bottom surface of the heat transfer plate. The heat transfer plate and the heating element are arranged on the upper surface of the fume collecting hood, so that a heating platform is conveniently formed to heat and insulate an object to be heated, the fume collecting hood is suitable for all range hoods with fume collecting hoods, and the applicability is good; the heat transfer plate sets up in the mounting groove, does not additionally increase the height of collection petticoat pipe, and it is convenient to use.

Description

Cooking fume exhauster

Technical Field

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

Background

The range hood is one of the essential appliances in modern kitchens. In the prior art, the development direction of the range hood is generally to increase the suction capacity, reduce noise, save energy and the like, and in order to realize an ideal suction effect, the range hood usually occupies a larger volume space, especially a top suction type range hood, and the extension of a smoke collection cover in the horizontal direction leads to the limitation of the expansion of the vertical space of a limited kitchen space.

With the increase of the demands of intelligent kitchens and people on multifunctional electric appliances, the single range hood with the suction and exhaust function cannot meet the demands of people, and the range hood with the dish warming function is produced. The existing range hood with the dish warming function mainly utilizes a horizontal placing plate of a top suction type range hood, a heating plate is arranged on the top suction type range hood, the heating of a specific area is realized by a mode so as to realize the dish warming function, and the heating plate has a large volume, so that the range hood has high structural requirements on a fume collecting hood, is difficult to install and has poor applicability.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood, which effectively utilizes a smoke collecting hood of the range hood and solves the problem of poor applicability of forming a heating platform on the upper surface of the smoke collecting hood.

The technical problem is solved by the following technical scheme:

a range hood, comprising:

the upper surface of the smoke collecting hood is provided with an installation groove;

the heat transfer plate is arranged in the mounting groove;

and the heating element is arranged at the bottom of the mounting groove and is connected with the bottom surface of the heat transfer plate in a heat conduction manner.

Optionally, a receiving groove is formed at the bottom of the mounting groove, and the heating element is received in the receiving groove.

Optionally, a clamping piece is fixed in the accommodating groove, and the heating element is clamped in the clamping piece.

Optionally, the heating element is strip-shaped, the number of the clamping pieces is two, and two ends of the heating element are respectively clamped in the two clamping pieces.

Optionally, the clamping member includes a bottom plate fixed to the bottom of the accommodating groove and two clamping pieces protruding from the bottom plate, the two clamping pieces are arranged oppositely, the bottom plate and the two clamping pieces surround to form a clamping space, and the heating element is clamped in the clamping space.

Optionally, the distance between the two clamping pieces is gradually reduced from bottom to top.

Optionally, the holding piece is arc-shaped, the arc-shaped protrudes from the groove wall of the accommodating groove in a direction away from the groove wall, and/or the bottom plate is arc-shaped, and the arc-shaped is attached to the bottom of the heating element.

Alternatively, the heat transfer plate is an insulating plate member that can change color in accordance with a change in temperature.

Optionally, the heating element is a resistance heating wire, the resistance heating wire includes a plurality of flat sections and a connecting section, the plurality of flat sections are parallel to each other and distributed at equal intervals, and the connecting section is connected to the end portions of two adjacent flat sections.

Optionally, the heating element is a heating film attached to the bottom of the mounting groove. Compared with the prior art, the range hood of the utility model has the following beneficial effects:

according to the utility model, the upper surface of the fume collecting hood is provided with the mounting groove, the heat transfer plate is arranged in the mounting groove, the bottom of the mounting groove is provided with the heating element which is connected with the heat transfer plate in a heat conduction manner, and then the upper surface of the fume collecting hood is provided with the heating platform, so that the heating and heat preservation of an object to be heated are facilitated; the structure of the mounting groove is suitable for all range hoods with fume collecting hoods, and the applicability is good; the heat transfer plate is arranged in the mounting groove, the existing structure of the fume collecting hood is fully utilized, the height of the upper surface of the fume collecting hood is not increased, the object to be heated is convenient to take, and the use is convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of a range hood according to the present invention;

FIG. 2 is a schematic partial cross-sectional view of a smoke collecting hood of a range hood according to the present invention;

FIG. 3 is an enlarged view of area A in FIG. 2;

fig. 4 is a schematic view of a partially exploded structure of a range hood according to the present invention;

FIG. 5 is a schematic structural view of a mounting groove and a receiving groove in the range hood according to the present invention;

fig. 6 is a schematic structural diagram of a clamping member in a range hood provided by the present invention.

Description of reference numerals:

1. a smoke collecting hood; 11. mounting grooves; 111. a containing groove; 2. a heat transfer plate; 21. a storage groove; 3. a heating element; 31. a resistance heating wire; 32. a clamping piece; 321. a backsheet; 322. and (6) clamping the sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment of the utility model provides a range hood, as shown in fig. 1-3, the range hood comprises a fume collecting hood 1, a fan hood, a heat transfer plate 2 and a heating element 3, wherein an installation groove 11 is formed on the upper surface of the fume collecting hood 1, the heat transfer plate 2 is arranged in the installation groove 11, the heating element 3 is arranged at the bottom of the installation groove 11, and the heating element 3 is in heat conduction connection with the bottom surface of the heat transfer plate 2.

It should be noted that, the two ends of the heating element 3 are connected to the positive and negative electrodes of the power supply, the heating element 3 generates heat by switching on the power supply, the heat is conducted to the heat transfer plate 2, and a heating platform is formed on the upper surface of the smoke collecting hood 1, so as to heat and preserve heat of an object to be heated, which includes but is not limited to dishes or a vessel containing dishes.

The range hood of the embodiment, as shown in fig. 1, forms the installation groove 11 with a planar bottom by sinking downward on the upper surface of the fume collecting cover 1, when the heat transfer plate 2 is installed in the installation groove 11, the heat transfer plate 2 is flush with the upper surface of the fume collecting cover 1, so that the height of the upper surface of the fume collecting cover 1 cannot be additionally increased, the heat to be heated on the heat transfer plate 2 can be conveniently taken, and the use is convenient. The structure of the mounting groove 11 is suitable for all the range hoods with the fume collecting hood 1, and the applicability is good. Preferably, as shown in fig. 1 and 2, the mounting groove 11 is located in a front area of the fan housing, and penetrates left and right on the upper surface of the smoke collecting cover 1, and/or penetrates forward to the front end surface of the smoke collecting cover 1, so that the heat transfer plate 2 is conveniently embedded in the mounting groove 11, the mounting and dismounting are convenient, and the sealing performance is good. In the embodiment shown in fig. 3 and 4, the upper surface of the heat transfer plate 2 is provided with the storage groove 21, the storage groove 21 is formed by recessing the central portion of the upper surface of the heat transfer plate 2, the bottom of the storage groove 21 is a plane and has a closed structure with a low middle part and a high periphery, an object to be heated is placed in the storage groove 21, the object to be heated can be prevented from sliding off, a liquid interception function is provided, the liquid is prevented from dripping and injuring people, and the outer side wall of the bottom of the storage groove 21 is in heat conduction connection with the heating element 3.

Optionally, a receiving groove 111 is formed at the bottom of the mounting groove 11, and the heating element 3 is received in the receiving groove 111.

As shown in fig. 4 and 5, the shape of the accommodating groove 111 is the same as that of the heating element 3, so that the heating element 3 can be accommodated in the accommodating groove 111 to be fixed. Preferably, the depth of the receiving groove 111 is equal to the outer diameter of the heating element 3, and the heating element 3 can be completely received in the receiving groove 111, so that the bottom of the mounting groove 11 is a plane, thereby ensuring the mounting and heat conduction effects of the heat transfer plate 2 and uniform heating.

Optionally, a clip 32 is fixed in the receiving groove 111, and the heating element 3 is clipped in the clip 32.

As shown in fig. 4 and 5, the clamping member 32 is used to fix the heating element 3 in the receiving groove 111, so as to ensure that the heating element 3 can be stably installed in the receiving groove 111, so as to ensure that the heating element 3 is not pulled to be damaged when the heating element 3 is assembled, and meanwhile, to ensure that the heating element 3 is not easily separated from the receiving groove 111 when the heat transfer plate 2 is assembled.

Further, the heating element 3 is strip-shaped, the number of the clamping pieces 32 is two, and two ends of the heating element 3 are respectively clamped in the two clamping pieces 32.

In this embodiment, two ends of the accommodating groove 111 are respectively provided with a clamping member 32 for connecting and fixing two ends of the strip-shaped heating element 3.

Exemplarily, the heating element 3 can be a flexible resistance heating wire 31, and through the arrangement of the two clamping pieces 32, the two ends of the heating element 3 can be respectively and sequentially clamped on the two clamping pieces 32 in the assembling process, so that the situation that the heating element 3 is damaged due to pulling during assembling is effectively avoided.

The clamping piece 32 extends a certain length along the long axis direction of the heating element 3 or the accommodating groove 111, and is in a strip shape, so that the clamping length of the clamping piece with the heating element 3 is increased, the connection stability and reliability are improved, and the heating element 3 is prevented from being pulled during installation. When the two ends of the heating element 3 are far away, more than one clamping piece 32 can be additionally arranged in the middle at intervals, for example, the clamping pieces 32 can be arranged at the turning or bending connection part of the heating element 3 for strengthening and fixing.

As shown in fig. 6, the fastening member 32 includes a bottom plate 321 fixed at the bottom of the accommodating groove 111 and two fastening pieces 322 protruding from the bottom plate 321, the two fastening pieces 322 are disposed opposite to each other, the bottom plate 321 and the two fastening pieces 322 surround to form a fastening space, and the heating element 3 is fastened in the fastening space.

Specifically, the clip 32 is a metal elastic member having an opening, and the bottom plate 321 of the clip 32 is connected to the bottom of the accommodating groove 111 by a screw or directly bonded to the bottom of the accommodating groove 111, so as to facilitate quick assembly and disassembly of the heating element 3 and save installation space. During installation, the clamping piece 32 is fixed at the bottom of the accommodating groove 111, the heating element 3 is pressed into the clamping space of the clamping piece 32, the heating element 3 is fixed, and finally the heat transfer plate 2 is installed for heat conduction heating.

Alternatively, the distance between the two clamping pieces 322 is gradually reduced from bottom to top, as shown in fig. 6, the distance between the two clamping pieces 322 arranged oppositely is gradually reduced from bottom to top from the two ends of the bottom sheet 321, a necking is formed above the bottom sheet 321, and the heating element 3 can pass through the necking from top to bottom and is pressed and clamped in the clamping space to realize positioning and installation due to the elastic piece structure of the clamping pieces 322. Preferably, the retaining sheet 322 and the bottom sheet 321 are of unitary construction.

Optionally, the holding piece 322 is arc-shaped, which protrudes from the wall of the receiving groove 111 to a direction away from the wall, and/or the bottom piece 321 is arc-shaped, which fits to the bottom of the heating element 3.

As shown in fig. 6, preferably, the two clamping sheets 322 are oppositely arranged and have relatively convex arc shapes, a reduced opening is formed at the minimum distance between the two clamping sheets 322, and an arc transition connection is formed between the upper side and the lower side of the reduced opening, so that the heating element 3 can be clamped or released smoothly. When the bottom of the accommodating groove 111 is an arc surface, the bottom sheet 321 is an arc shape attached to the bottom of the accommodating groove 111, so that the bottom sheet 321 can be attached to the bottom of the accommodating groove 111, and the arc surface and the arc shape are matched with the outer circumference of the heating element 3, so that the heating element 3 can be stably attached to the bottom of the accommodating groove 111, the installation space is saved, accidents such as looseness or protrusion are avoided in the use process, and when the heating element 3 is electrified, the generated heat is transferred to the heat transfer plate 2 to realize heating.

Alternatively, the heat transfer plate 2 is an insulating plate member that can change color in accordance with a temperature change.

Specifically, the thermochromic substrate disclosed in patent application publication No. CN103158301A and the manufacturing method thereof, the thermochromic glass disclosed in patent application publication No. CN204958726U, the thermochromic material disclosed in patent application publication No. CN100424148C, and the thermochromic element and the thermochromic display device disclosed in patent application publication No. CN102103274B can be used as the material of the heat transfer plate 2 used in the present invention, the heat transfer plate 2 is a thermochromic plate member that changes color according to a change in temperature, when a cooked dish is placed on the heat transfer plate 2, the heat transfer plate 2 is heated by the heating element 3, and the heat is transferred to a dish containing the dish or directly to the dish through the heat transfer plate 2, so that the cooked dish can maintain a constant temperature or a temperature rise effect. The current temperature rise condition and working state of the heat transfer plate 2 can be judged through the color change of the heat transfer plate 2, and the overheating or insufficient heat of the heat transfer plate 2 is avoided. It can be understood that the heat transfer plate 2 can also be made of insulating material plates such as microcrystalline glass, high borosilicate glass, toughened glass, ceramic plates or mica plates, and has good heat conduction performance and far infrared radiation intensity and good heating and heat preservation effects.

Optionally, the heating element 3 is a resistance heating wire 31, and the resistance heating wire 31 includes a plurality of straight sections parallel to each other and distributed at equal intervals, and a connecting section connected to the end of two adjacent straight sections.

As shown in fig. 4, a plurality of receiving grooves 111 are disposed at the bottom of the mounting groove 11, the receiving grooves 111 are long straight grooves along the left and right directions of the smoke collecting hood 1, the receiving grooves 111 are uniformly and alternately disposed at the bottom of the mounting groove 11 along the front and rear directions of the smoke collecting hood 1, the head and tail ends of the adjacent receiving grooves 111 are communicated through the curved groove, the straight end of the resistance heating wire 31 is received in the long straight groove, the connection section is received in the curved groove, the multi-section straight resistance heating wire 31 extends along the length direction (left and right directions) and is uniformly disposed along the width direction (front and rear directions) at intervals, the straight sections of the resistance heating wire 31 are connected through the connection section to form a loop structure, and the resistance heating wire 31 is correspondingly disposed in the receiving grooves 111 to form the resistance heating wires 31 which are uniformly distributed. The resistance heating wire 31 is preferably embedded in the accommodating groove 111 so as to be quickly disassembled and assembled. The resistance heater 31 is disposed in the receiving groove 111, so as to facilitate stable heat conduction to the heat transfer plate 2 and installation of the heat transfer plate 2. Referring to fig. 5, in some embodiments, the mounting groove 11 is a recessed step surface machined on the smoke collecting cover 1 to facilitate the embedded mounting of the heat transfer plates 2. The accommodating groove 111 is a linear groove processed at the bottom of the mounting groove 11, and is arranged in accordance with the layout shape of the resistance heating wire 31, the resistance heating wire 31 can be embedded in the accommodating groove 111, and the multi-stage resistance heating wire 31 is isolated, so that the heating is safer. Further, the depth of the accommodating groove 111 is not less than the diameter of the resistance heating wire 31, and after the resistance heating wire 31 is inserted into the accommodating groove 111, the heat of the resistance heating wire 31 can heat the heat transfer plate 2 in a radiation heat conduction manner, so that the heating is uniform. Of course, in other embodiments, the resistance heating wire 31 may also directly contact the heat transfer plate 2 for heat conduction, so that the heat transfer plate 2 is heated more quickly and efficiently.

Optionally, heating element 3 is for pasting the heating film of locating the tank bottom of mounting groove 11, the heating film includes conductive silver thick liquid membrane, soft heating film or mica electric heat membrane etc. and is little, can reduce the energy consumption, set up the tank bottom at mounting groove 11, it is big with the area of contact of heat transfer plate 2, do benefit to and improve the efficiency of generating heat, it is even to have generate heat, the fast advantage of intensification, greatly reduced greenhouse effect, when the heating and the heat preservation effect of the thing of waiting to heat improve, can ensure that various food keeps at best taste and nutritive temperature. It should be noted that, when the heating element 3 is a planar heating element such as a heating film, the heating element 3 may be directly attached to the bottom of the mounting groove 11, and the receiving groove 111 may not be provided.

The range hood further comprises a temperature control module and/or a control switch, wherein the temperature control module is arranged between the heating element 3 and the power supply, so that the on-off operation of the heating element 3 can be realized through the temperature control module so as to realize the temperature control of the heating element 3, the temperature of the heat transfer plate 2 can be adjusted conveniently, and the heat transfer plate 2 can be prevented from being overheated. The control switch is arranged between the temperature control module and the power supply, the control switch can be any one of a liquid crystal touch switch, a liquid crystal key switch, a digital touch switch or a digital key switch, and is used for controlling the heating element 3 to ensure that the maximum heating temperature of the heat transfer plate 2 is not higher than 50 ℃ when the heat transfer plate 2 is heated, so that the heat transfer plate 2 works in a safe temperature range, and accidents such as scalding are avoided. The power supply adopted by the range hood of the utility model preferably adopts a low-voltage direct-current power supply. The low-voltage direct-current power supply can provide stable and low-power heating current for the heating element 3, controls the power of the heat transfer plate 2 to be lower than 100 watts, and has the advantages of high thermal efficiency, fast temperature rise, no noise, no radiation, environmental protection, energy conservation, emission reduction and the like.

The range hood provided by the utility model does not need to greatly change the existing range hood, can realize the utilization of the upper space of the fume collecting hood 1 only by arranging the heat transfer plate 2 in the concave mounting groove 11 formed on the upper surface of the fume collecting hood 1, is suitable for most range hoods, adopts the planar heat transfer plate 2, is suitable for heating and heat preservation of all flat-bottomed vessels and objects such as bags, soft packages or filling, and the like, has the maximum temperature of not more than 50 ℃ and the maximum power of less than 100 watts, so people injury problems such as overtemperature, burst and the like are not worried, and the safety factor is high. It should be noted that, in the range hood provided by the present invention, the heat transfer plate 2 is a flat plate with heating and heat preservation functions, so that the range hood is not limited to heat preservation of dishes and dishes for holding dishes, and operations such as food thawing, preheating and the like can be realized on the heat transfer plate 2.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The detailed description of the embodiments above only expresses several embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A range hood, its characterized in that: the method comprises the following steps:

the exhaust fume collecting hood comprises a fume collecting hood body (1), wherein an installation groove (11) is formed in the upper surface of the fume collecting hood body (1);

the heat transfer plate (2), the said heat transfer plate (2) is installed in the said mounting groove (11);

the heating element (3) is arranged at the bottom of the mounting groove (11), and the heating element (3) is connected with the bottom surface of the heat transfer plate (2) in a heat conduction manner.

2. The range hood of claim 1, wherein: an accommodating groove (111) is formed in the bottom of the installing groove (11), and the heating element (3) is accommodated in the accommodating groove (111).

3. The range hood of claim 2, wherein: the heating element is characterized in that a clamping piece (32) is fixed in the accommodating groove (111), and the heating element (3) is clamped in the clamping piece (32).

4. The range hood of claim 3, wherein: heating element (3) are the strip, joint spare (32) are equipped with two, two are located in the both ends card respectively of heating element (3) joint spare (32).

5. The range hood of claim 3 or 4, wherein: the clamping piece (32) comprises a bottom sheet (321) fixed at the bottom of the accommodating groove (111) and two clamping sheets (322) convexly arranged on the bottom sheet (321), the two clamping sheets (322) are oppositely arranged, the bottom sheet (321) and the two clamping sheets (322) are enclosed to form a clamping space, and the heating element (3) is clamped in the clamping space.

6. The range hood of claim 5, wherein: the distance between the two clamping sheets (322) is gradually reduced from bottom to top.

7. The range hood of claim 5, wherein: the clamping piece (322) is arc-shaped, the arc-shaped protrudes from the groove wall of the accommodating groove (111) to the direction far away from the groove wall, and/or the bottom plate (321) is arc-shaped, and the arc-shaped is attached to the bottom of the heating element (3).

8. The range hood of claim 1, wherein: the heat transfer plate (2) is an insulating plate member capable of changing color according to a temperature change.

9. The range hood of claim 1, wherein: the heating element (3) is a resistance heating wire (31), the resistance heating wire (31) comprises a plurality of sections of straight sections and connecting sections, the plurality of sections of straight sections are parallel to each other and distributed at equal intervals, and the connecting sections are connected to the end parts of the adjacent two sections of straight sections.

10. The range hood of claim 1, wherein: the heating element (3) is a heating film attached to the bottom of the mounting groove (11).

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