CN215762347U - Turbo fan and cigarette machine - Google Patents

Abstract

The utility model provides a turbo fan and a range hood. The turbofan includes the spiral case and sets up the main fan in the spiral case, is provided with the opening on the spiral case, and the turbofan still includes: a heating device covering the opening; and the auxiliary fan is arranged on the volute and positioned on the outer side of the heating device, and an air outlet of the auxiliary fan is aligned with the heating device. According to the turbo fan disclosed by the embodiment of the utility model, the air outlet of the auxiliary fan is aligned with the heating device, so that the auxiliary fan can be started when the heating device works, and heat generated by the heating device can be quickly and efficiently sent into the volute through the auxiliary fan, so that the heat can reach each position in the turbo fan. Therefore, the temperature field in the volute is uniform, and poor oil removing effect caused by low temperature in some places is avoided. In addition, the heat generated by the heating device can be blown into the volute in time, so that the situation that the local temperature is too high near the heating device can not occur.

Description

Turbo fan and cigarette machine

Technical Field

The utility model relates to the technical field of kitchen equipment, in particular to a turbo fan and a range hood with the turbo fan.

Background

The smoke machine is a kitchen device for purifying the kitchen environment. A range hood is generally installed above the range to exhaust waste burned in the range and smoke generated during cooking, thereby purifying air in the kitchen.

Typically, a turbo fan is disposed within the range hood to provide a working airflow for the range hood. In the long-term use process, a large amount of grease can be deposited in the turbine fan, and the normal work of the turbine fan and the smoke machine is seriously influenced. In order to solve the above problems, in a known type of turbo fan, an electric heating pipe is disposed on a volute, and after the electric heating pipe is powered on, heat is generated, so that viscosity of grease solidified in the turbo fan is reduced by the heat, thereby facilitating removal of the grease and achieving a cleaning purpose.

However, in practical operation, the heat generated by the electric heating tube cannot be effectively transferred to various positions in the turbine fan, and the position far away from the electric heating tube has poor grease removing effect and unsatisfactory cleaning effect; the common practice in the prior art is to increase the power of the electric heating tube, but this may result in the temperature around the electric heating tube being too high, and dangerous accidents such as burning loss and even fire may occur easily.

SUMMERY OF THE UTILITY MODEL

To at least partially solve the problems in the prior art, according to one aspect of the present invention, a turbofan is provided. The turbofan includes the spiral case and sets up the main fan in the spiral case, is provided with the opening on the spiral case, and the turbofan still includes: a heating device covering the opening; and the auxiliary fan is arranged on the volute and positioned on the outer side of the heating device, and an air outlet of the auxiliary fan is aligned with the heating device.

According to the turbo fan disclosed by the embodiment of the utility model, the air outlet of the auxiliary fan is aligned with the heating device, so that the auxiliary fan can be started when the heating device works, and heat generated by the heating device can be quickly and efficiently sent into the volute through the auxiliary fan, so that the heat can reach each position in the turbo fan. Therefore, the temperature field in the volute is uniform, and poor oil removing effect caused by low temperature in some places is avoided. In addition, because the heat generated by the heating device can be timely conveyed into the volute, the heat loss can be reduced, and the heating efficiency is improved. The main fan of the turbine fan can be started during cleaning, and the auxiliary fan is matched with the main fan to further improve the oil removing effect. And because the heat that heating device produced can be in time insufflated in the spiral case, consequently the too high condition of local temperature can not appear near heating device, based on this, can suitably improve auxiliary blower's power, so not only can improve deoiling effect, can also avoid taking place dangerous accident because of local high temperature. The power of the auxiliary fan can be reasonably selected by a person skilled in the art according to actual needs.

Illustratively, the volute includes an arcuate wall and side walls connected to both sides of the arcuate wall, with the opening being disposed on the arcuate wall. Therefore, the auxiliary fan can directly send the heat generated by the heating device to the impeller in the volute, and the cleaning effect on the grease adsorbed on the impeller is better.

Exemplarily, the heating device is connected to the volute from an outside of the volute. Therefore, the heating device cannot occupy the air channel in the volute, and the problem of noise and the like caused by the disorder of air flow in the volute is avoided. Moreover, the production and installation are facilitated, and the production process is relatively simple.

The turbo fan further includes a fixing bracket connected to the scroll casing from an outer side of the scroll casing, and the heating device and the auxiliary fan are fixed to the fixing bracket. The fixing frame can be independently produced to adapt to heating devices and auxiliary fans of different installation modes.

Illustratively, the fixing frame comprises two side plates, two bottom plates and two inner lining plates, the two side plates are oppositely arranged and extend outwards from the volute, the two bottom plates are connected to the two side plates in a one-to-one correspondence manner and extend towards the space between the two side plates, the two inner lining plates are connected to the two bottom plates in a one-to-one correspondence manner and extend outwards from the two bottom plates, and the heating device is connected to the two inner lining plates from the space between the two inner lining plates. Therefore, the heating device can be positioned between the two lining plates, and no other part is blocked between the heating device and the opening, so that the heat generated by the heating device can enter the opening as much as possible, the heat loss is reduced, and the heating efficiency is improved.

Illustratively, the fixed frame comprises two side plates and two cover plates, the two side plates are oppositely arranged and extend outwards from the volute, the two cover plates are connected to the two side plates in a one-to-one correspondence mode and extend from the two side plates to the space between the two side plates, and the auxiliary fan is connected to the two cover plates from the bottom sides of the two cover plates. Through the arrangement, no other component is arranged between the auxiliary fan and the heating device for blocking, so that the air flow generated by the auxiliary fan can send the heat generated by the heating device into the opening as far as possible, the heat loss is reduced, and the heating efficiency is improved.

Illustratively, the mount is welded to the volute from an outside of the volute. The welding has high connection strength and the production process is relatively simple.

Illustratively, the heating device is a PTC heater. The PTC heater has the advantages of compact structure, small thermal resistance, rapid heating, high thermal efficiency and the like. Also, the PTC heater has a function of automatically adjusting temperature. Specifically, when the temperature of the PTC heater exceeds a preset temperature threshold, its power is automatically decreased to maintain it within a predetermined temperature range. Therefore, dangerous accidents such as burning loss and even fire can be effectively avoided.

Illustratively, the turbofan further comprises a temperature detecting device for detecting temperature data of the heating device, and a control device electrically connected to the temperature detecting device, the control device controlling the temperature of the heating device within a predetermined temperature range based on the temperature data. So set up, can control the thermal size that heating device produced, ensure that the heat can not be too high or low excessively to make turbofan's result of use better.

According to another aspect of the utility model, a cigarette making machine is also provided. The range hood comprises any one of the turbo fans described above.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model. In the drawings, there is shown in the drawings,

figure 1 is a perspective view of a portion of a cigarette machine according to one exemplary embodiment of the present invention;

figure 2 is a perspective view of a portion of the cigarette machine shown in figure 1 with a portion of the housing removed;

FIG. 3 is a perspective view of the turbofan shown in FIG. 2;

FIG. 4 is a side view of the turbofan shown in FIG. 2;

FIG. 5 is a perspective view of the volute of FIG. 2;

FIG. 6 is a perspective view of the volute, the heating device and the fixing frame shown in FIG. 2; and

FIG. 7 is an exploded view of a turbofan according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. 100', a turbine fan; 200. a housing; 300. a volute; 310. an opening; 320. an arcuate wall; 330. a side wall; 400. a heating device; 500. an auxiliary fan; 600. a fixed mount; 601. a connecting plate; 610. a side plate; 620. a base plate; 630. an inner liner plate; 640. and (7) a cover plate.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description merely illustrates a preferred embodiment of the utility model and that the utility model may be practiced without one or more of these details. In other instances, well known features have not been described in detail so as not to obscure the utility model.

According to one aspect of the present invention, a turbofan is provided. The turbine fan may be applied to any suitable device. Thus, according to another aspect of the present invention, a cigarette making machine is provided. The range hood may include a turbo fan of an embodiment of the present invention. Such range hood machines include, but are not limited to, side-draft, top-draft, European style range hoods and the like.

As shown in fig. 1-2, the turbofan 100 may be disposed at any suitable location on the device, such as within a housing 200 of the device. As shown in fig. 3-4, the turbo fan 100 may include a volute 300, a main fan (not shown), a heating device 400, and an auxiliary fan 500.

The volute 300 may employ various types of volutes known in the art or that may occur in the future. The primary fan may be disposed within the volute 300, as is known in the art. Through the rotation of the main fan, air enters from the air inlet of the volute 300 and flows out from the air outlet of the volute 300, and therefore the effect of oil smoke extraction is achieved. As shown, the volute 300 may also be provided with an opening 310. The opening 310 may be provided at any suitable location on the volute 300. Opening 310 may be in communication with the space within volute 300.

The heating device 400 may be disposed on the volute 300 by any suitable means such as welding, bonding, connector connection, etc. The heating device 400 may cover the opening 310. In this way, air is prevented from flowing out of the opening 310. The heat generated by the heating device 400 can enter the volute 300 through the opening 310, so that the viscosity of the grease adsorbed in the turbo fan 100 can be reduced, and the purpose of cleaning can be achieved. The heating device 400 may employ various types of heating devices known in the art or that may come into existence in the future, such as electric heating tubes, resistance wires, and the like. Preferably, the heating device 400 may be a PTC heater. The PTC heater has the advantages of compact structure, small thermal resistance, rapid heating, high thermal efficiency and the like. Also, the PTC heater has a function of automatically adjusting temperature. Specifically, when the temperature of the PTC heater exceeds a preset temperature threshold, its power is automatically decreased to maintain it within a predetermined temperature range. Therefore, dangerous accidents such as burning loss and even fire can be effectively avoided. Illustratively, the preset temperature threshold may be 220 ℃, 230 ℃, 240 ℃ or the like. One skilled in the art can select the preset temperature threshold for the PTC heater based on the maximum temperature that can be tolerated by the turbofan 100. In any event, the preset temperature threshold of the PTC heater is typically pre-set at the time of manufacture or installation of the PTC heater, and is known to the PTC heater.

The auxiliary fan 500 may be disposed on the volute 300 by any suitable means such as welding, bonding, connection, etc. It is noted that the auxiliary fan 500 is a separate fan, which is independent from the main fan. The auxiliary blowers 500 may take the form of various types of blowers known in the art or that may be present in the future. The auxiliary fan 500 is located outside the heating device 400. The air outlet of the auxiliary blower 500 may be aligned with the heating device 400. In this way, the auxiliary fan 500 may generate an air flow to enter the scroll 300 through the opening 310 with heat generated by the heating device 400.

Alternatively, the auxiliary fan 500 may select whether to be linked with the heating apparatus 400. In embodiments where the auxiliary fan 500 is not coupled to the heating device 400, the power of the auxiliary fan 500 may be independent of the power of the heating device 400. For example, whether the heating device 400 is in a high power or low power mode, the auxiliary fan 500 may be in a high power mode to enable heat generated by the heating device 400 to be sent into the volute 300 as much as possible. In embodiments where the auxiliary fan 500 is coupled to the heating device 400, the power of the auxiliary fan 500 may be related to the power of the heating device 400. For example, when the heating device 400 is in a high-power condition, the auxiliary fan 500 may be in a high-power condition, so that heat is rapidly sent into the volute 300 to prevent the heating device 400 from overheating; when the heating device 400 is in a low power condition, the power of the auxiliary fan 500 may be reduced appropriately as long as the requirement of cleaning can be satisfied. One skilled in the art can select whether the auxiliary fan 500 is coupled to the heating apparatus 400.

According to the turbo fan 100 of the embodiment of the present invention, the air outlet of the auxiliary fan 500 is aligned with the heating device, and the auxiliary fan 500 can be started when the heating device 400 operates, so that heat generated by the heating device 400 can be rapidly and efficiently sent into the volute 300 through the auxiliary fan 500, and then reaches various positions in the turbo fan 100. Therefore, the temperature field in the volute 300 can be uniform, and poor oil removal effect caused by low temperature in some places can be avoided. In addition, since the heat generated by the heating device 400 can be timely transferred into the scroll 300, the heat loss can be reduced, and the heating efficiency can be improved. The main blower of the turbo fan 100 may also be started during cleaning, and the auxiliary blower 500 may be used in cooperation with the main blower to further improve the oil removing effect. In addition, since the heat generated by the heating device 400 can be blown into the scroll 300 in time, the local temperature near the heating device 400 is not too high, and accordingly, the power of the auxiliary fan 500 can be appropriately increased, so that the oil removing effect can be improved, and the dangerous accident caused by the local temperature is also avoided. The power of the auxiliary fan 500 can be selected reasonably by those skilled in the art according to actual needs.

Preferably, the turbofan 100 may further include a temperature sensing device (not shown) and a control device (not shown). The temperature detection means may be used to detect temperature data of the heating means 400. The temperature detection means may employ various types of temperature detection means known in the art or that may occur in the future, such as a thermistor, and the like. The control device may be electrically connected to the temperature detection device. The control means may control the temperature of the heating means 400 within a predetermined temperature range based on the temperature data. With the arrangement, the size of the heat generated by the heating device 400 can be controlled, and the heat is ensured not to be too high or too low, so that the use effect of the turbofan 100 is better.

Preferably, as shown in FIG. 5, the volute 300 may include an arcuate wall 320 and a sidewall 330. The side wall 330 may be connected to the curved wall 320. The opening 310 may be provided on the arc-shaped wall 320. In this way, the auxiliary fan 500 may directly send the heat generated by the heating device 400 to the impeller (not shown) in the scroll 300, so that the grease adsorbed on the impeller is better cleaned.

Preferably, as shown in fig. 3-4, the heating device 400 may be connected to the volute 300 from the outside of the volute 300. In this way, the heating device 400 does not encroach on the air channel in the volute 300, and the air flow in the volute 300 is prevented from being disordered, so that the problems of noise and the like are solved. Moreover, the production and installation are facilitated, and the production process is relatively simple.

In one embodiment of the turbofan 100', as shown in fig. 7, the heating device 400 may be directly connected to the volute 300 and the auxiliary fan 500 may be directly connected to the heating device 400.

In another embodiment of the turbofan 100, as shown in FIGS. 3-4, the turbofan 100 may further include a mount 600. The mount 600 may be connected to the scroll 300 from the outside of the scroll 300. The manner in which the fixture 600 is attached to the volute 300 may be any, including but not limited to attachment, bonding, etc. Preferably, the fixing bracket 600 may be welded to the scroll 300 from the outside of the scroll 300. The welding has high connection strength and the production process is relatively simple. Any suitable location on the fixture 600 may be welded to the volute 300. In the embodiment shown in fig. 6, the fixing frame 600 may include a connection plate 601. The connection plate 601 may be welded to the volute 300. The fixing bracket 600 may be independently manufactured to be adapted to the heating apparatus 400 and the auxiliary blower 500 of different installation manners.

Preferably, as shown in fig. 6, the fixing frame 600 may include two side panels 610, two bottom panels 620, and two inner lining panels 630. The two side plates 610 may be disposed opposite to each other. Two side plates 610 may extend outwardly from the volute 300. The two bottom plates 620 may be connected to the two side plates 610 in one-to-one correspondence. The two bottom panels 620 may extend between the two side panels 610. The two inner liner plates 630 may be connected to the two bottom plates 620 in a one-to-one correspondence. Two inner liner panels 630 may extend outwardly from the two bottom panels 620. Thus, the holder 600 may generally form two symmetrical U-shaped structures. The heating device 400 may be connected to the two inner lining plates 630 from between the two inner lining plates 630. The manner in which the heating device 400 is attached to the two inner liner plates 630 is not limited, and includes, but is not limited to, welding, adhesives, connector attachment, and the like. In this way, the heating device 400 can be located between the two inner lining plates 630, and no other component blocks the opening 310, so as to ensure that the heat generated by the heating device 400 can enter the opening 310 as much as possible, reduce heat loss, and improve heating efficiency.

Preferably, as shown in fig. 6, the fixing frame 600 may include two side plates 610 and two cover plates 640. The two side plates 610 may be disposed opposite to each other. Two side plates 610 may extend outwardly from the volute 300. The two cover plates 640 may be connected to the two side plates 610 in a one-to-one correspondence. Two cover panels 640 may extend from the two side panels 610 to between the two side panels 610. Thus, the holder 600 may generally form two symmetrical L-shaped structures. The auxiliary fan 500 may be connected to the two cover plates 640 from the bottom sides of the two cover plates 640. The manner in which the auxiliary blower 500 is coupled to the two cover plates 640 is not limited, and includes, but is not limited to, welding, gluing, coupling, etc. Through the arrangement, no other component is blocked between the auxiliary fan 500 and the heating device 400, so that the air flow generated by the auxiliary fan 500 can send the heat generated by the heating device 400 into the opening 310 as much as possible, the heat loss is reduced, and the heating efficiency is improved.

Only the differences between the different embodiments have been described above, the same reference numerals have been used for the same or similar components of the different embodiments, and a detailed description of these same or similar components will not be provided herein for the sake of brevity.

In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front", "rear", "upper", "lower", "left", "right", "lateral", "vertical", "horizontal" and "top", "bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and in the case of not making a reverse explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For ease of description, relative terms of regions such as "above … …", "above … …", "above … …", "above", and the like may be used herein to describe the regional positional relationship of one or more components or features with other components or features as illustrated in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a turbofan, includes the spiral case and sets up main fan in the spiral case, its characterized in that is provided with the opening on the spiral case, the turbofan still includes:

a heating device covering the opening; and

the auxiliary fan is arranged on the volute and located on the outer side of the heating device, and an air outlet of the auxiliary fan is aligned with the heating device.

2. The turbofan of claim 1 wherein the volute comprises an arcuate wall and side walls connected to both sides of the arcuate wall, the opening being disposed on the arcuate wall.

3. The turbofan of claim 1 wherein the heating device is coupled to the volute from an outside of the volute.

4. The turbofan of claim 1 further comprising a mount coupled to the volute from an outside of the volute, the heating device and the auxiliary blower both being secured to the mount.

5. The turbofan of claim 4 wherein the mount comprises two side plates disposed opposite and extending outwardly from the volute, two bottom plates connected to the two side plates in a one-to-one correspondence and extending between the two side plates, and two inner liner plates connected to the two bottom plates in a one-to-one correspondence and extending outwardly from the two bottom plates, the heating device being connected to the two inner liner plates from between the two inner liner plates.

6. The turbofan of claim 4 wherein the mount comprises two side plates disposed opposite and extending outwardly from the volute and two cover plates connected to and extending between the two side plates in a one-to-one correspondence, the auxiliary fan being connected to the two cover plates from a bottom side thereof.

7. The turbofan of claim 4 wherein the mount is welded to the volute from an outside of the volute.

8. The turbofan of claim 1 wherein the heating device is a PTC heater.

9. The turbofan of claim 1 further comprising a temperature sensing device for sensing temperature data of the heating device and a control device electrically connected to the temperature sensing device, the control device controlling the temperature of the heating device within a predetermined temperature range based on the temperature data.

10. A machine as claimed in any one of claims 1 to 9, comprising a turbo fan as claimed in any one of claims 1 to 9.

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