Hot air type decontamination range hood

Abstract

The hot air type decontamination range hood comprises a shell, a volute, a wind wheel and a hot air cleaning device, the hot air cleaning device comprises a flow guide piece, a fan and a heating piece, the flow guide piece is provided with a flow guide channel for containing the fan and the heating piece, the flow guide channel is provided with a plurality of air outlets communicated with the flow guide channel, and one air outlet directly faces an air inlet. And the other air outlets directly face the cavity wall of the accommodating cavity and / or the outer wall of the volute. According to the utility model, the flow guide piece with the flow guide channel and the plurality of air outlets is arranged, the heating piece and the fan are arranged in the flow guide channel, and one air outlet is over against the air inlet, and the other air outlets are over against the cavity wall of the accommodating cavity and / or the outer wall of the volute, so that hot air blown out of the flow guide channel can be blown out through different air outlets; oil stains attached to the wind wheel, the volute and the cavity wall of the containing cavity are gasified or liquefied and discharged out of the shell, cleaning of the wind wheel, the volute and the shell is achieved, and the oil stains are prevented from being attached to the wind wheel, the volute and the shell to affect rotating smoke discharging of the wind wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a hot-air type oil-removing range hood. Background Art

[0002] A range hood is a device for exhausting indoor cooking fumes to the outside. It includes a housing, a volute disposed inside the housing, and an impeller disposed inside the volute. The volute has an exposed opening that exposes part of the impeller. The impeller can rotate relative to the volute to exhaust indoor cooking fumes to the outside. When the impeller rotates to extract fumes, most of the cooking fumes are discharged to the outside through the air duct, and a small part of the cooking fumes are liquefied when they encounter cold and adhere to the impeller, the inner wall of the housing, and the inner and outer walls of the volute to form oil stains. Since the oil stains adhere to the impeller, the housing, and the volute, it affects the rotation of the impeller for exhausting fumes and causes the accumulation of oil stains. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hot-air type oil-removing range hood to solve the problems that when the impeller of the existing range hood rotates to exhaust fumes, part of the cooking fumes are liquefied when they encounter cold and adhere to the impeller, the housing, and the volute to form oil stains, which affects the rotation of the impeller for exhausting fumes and causes the accumulation of oil stains.

[0004] The utility model is realized through the following technical solutions:

[0005] The hot-air type oil-removing range hood includes a housing, a volute, an impeller, and a hot-air cleaning device. The housing has a receiving cavity. The volute is received in the receiving cavity and is spaced from the cavity wall of the receiving cavity to form an assembly space. The volute has an air duct communicated with the assembly space through an air inlet. The impeller is received in the air duct and is exposed through the air inlet. The hot-air cleaning device includes a guiding member, a fan, and a heating member. The guiding member is received in the assembly space. The guiding member has a guiding channel for receiving the fan and the heating member. The guiding channel has a plurality of air outlets communicated therewith. Among the plurality of air outlets, one air outlet is at least partially opposite to the air inlet, and the remaining air outlets are at least partially opposite to the cavity wall of the receiving cavity and / or the outer wall of the volute.

[0006] Further, the guiding member extends vertically. Among the plurality of air outlets, the air outlet that is at least partially opposite to the air inlet is defined as an inner air outlet. The inner air outlet is opposite to the air inlet front and back. The inner wall of the guiding channel opposite to the inner air outlet inclines downward from top to bottom towards the inner air outlet.

[0007] Further, the guiding member extends vertically. The number of air outlets is 2. Among the two air outlets, the air outlet that is at least partially opposite to the cavity wall of the receiving cavity and / or the outer wall of the volute is defined as an outer air outlet. The outer air outlet is opened on the bottom surface of the guiding member.

[0008] Further, the flow guide member extends vertically, and the flow guide member has a partition portion that divides the flow guide channel into a main channel and a plurality of branch channels communicating with the main channel. A plurality of the air outlets communicate with a plurality of the branch channels respectively, and the fan and the heating element are accommodated in the main channel.

[0009] Further, there are 2 branch channels. Among the two branch channels, one branch channel is defined as an inner branch channel, and the other branch channel is defined as an outer branch channel. The main channel and the two branch channels are arranged vertically, with the main channel on the upper side, and the two branch channels on the lower side and arranged side by side; there are 2 air outlets. Among the two air outlets, at least part of the air outlet facing the air inlet is defined as an inner air outlet, and at least part of the air outlet facing the wall of the accommodation cavity and / or the outer wall of the volute is defined as an outer air outlet. The inner branch channel has the inner air outlet, and the outer branch channel has the outer air outlet.

[0010] Further, the fan and a plurality of the air outlets are vertically opposite on the flow guide member, with the fan on the upper side and a plurality of the air outlets on the lower side, and the heating element is located between the fan and a plurality of the air outlets.

[0011] Further, the hot air cleaning device is detachably and fixedly connected to the housing.

[0012] Further, the housing has a communication hole communicating with the assembly space. The fan and a plurality of the air outlets are oppositely arranged on the flow guide member. One end of the flow guide member away from a plurality of the air outlets extends out of the assembly space through the communication hole. The flow guide member has a plurality of abutting portions abutting against the edge of the communication hole, and fasteners for locking the flow guide member to the housing are provided on each of the abutting portions.

[0013] Further, the flow guide member has a jack for the fan to insert into the flow guide channel, and the fan is detachably and fixedly connected to the flow guide member in the jack; the heating element is arranged between the fan and a plurality of the air outlets, and the heating element is detachably and fixedly connected to the flow guide member. A lead outlet communicating with the flow guide channel is provided on one side of the flow guide member where the heating element is located.

[0014] Further, the housing has a dirt collection hole located at its bottom surface and communicating with the accommodation cavity. The volute has a collection hole communicating with the air duct. The collection hole is located below the impeller and above the dirt collection hole, and a dirt collection member is provided below the dirt collection hole of the housing.

[0015] The advantages of this technical solution are as follows. By configuring a deflector with a diversion channel and several air outlets in the assembly space, a heating element for gas heating and a fan for driving the gas to flow towards the several air outlets in the diversion channel, since at least part of one air outlet faces the air inlet, and the remaining air outlets at least partially face the inner wall of the accommodating cavity and / or the outer wall of the volute, the hot air blown out from the several air outlets can heat the oil stains attached to the impeller, volute and inner wall of the accommodating cavity, causing the oil stains to vaporize or liquefy and then be discharged from the housing, realizing the decontamination and cleaning of the impeller, volute and housing, and avoiding the oil stains attaching to the impeller, volute and inner wall of the accommodating cavity and affecting the smoke exhaust effect of the range hood. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments.

[0018] Figure 1 is a perspective view of the hot air type decontamination range hood disclosed in the embodiment;

[0019] Figure 2 is a cross-sectional view of the hot air type decontamination range hood disclosed in the embodiment;

[0020] Figure 3 is Figure 2 a partial enlarged view of part A in

[0021] Figure 4 is a perspective view of the hot air cleaning device in the embodiment;

[0022] Figure 5 is an exploded view of the hot air cleaning device in the embodiment. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] Embodiment: As Figures 1-5As shown in the figure, the hot air type decontamination range hood includes a housing 1, a volute 2, a wind wheel 3 and a hot air cleaning device 4. The housing 1 has a receiving cavity 101. The volute 2 is received in the receiving cavity 101 and is spaced from the cavity wall of the receiving cavity 101 to form an assembly space 102. The volute 2 has an air duct 202 communicating with the assembly space 102 through an air inlet 201. The wind wheel 3 is received in the air duct 202 and is exposed through the air inlet 201. The hot air cleaning device 4 includes a deflector 401, a fan 402 and a heating element 403. The deflector 401 is received in the assembly space 102. The deflector 401 has a deflector channel 404 for receiving the fan 402 and the heating element 403. The deflector channel 404 has a number of air outlets 405 communicating therewith. Among the number of air outlets 405, one air outlet 405 is at least partially opposite to the air inlet 201, and the remaining air outlets 405 are at least partially opposite to the cavity wall of the receiving cavity 101 and / or the outer wall of the volute 2. The heating element 403 is used to heat the gas in the deflector channel 404, and the fan 402 is used to drive the gas in the deflector channel 404 to flow along the deflector channel 404 to the number of air outlets 405. This embodiment provides a hot air type decontamination range hood to solve the problem that when the wind wheel rotates to exhaust smoke in the existing range hood, some oil fumes are liquefied when encountering cold and adhere to the wind wheel, the housing and the volute to form oil stains, which affects the rotation and smoke exhaust of the wind wheel. It mainly configures a deflector 401 with a deflector channel 404 and a number of air outlets 405 in the assembly space 102, configures a heating element 403 for heating the gas in the deflector channel 404 and a fan 402 for driving the gas to flow towards the number of air outlets 405 in the deflector channel 404. Since one air outlet 405 is at least partially opposite to the air inlet 201, and the remaining air outlets 405 are at least partially opposite to the cavity wall of the receiving cavity 101 and / or the outer wall of the volute 2, the hot air blown out from the number of air outlets 405 can heat the oil stains adhering to the wind wheel 3, the volute 2 and the inner wall of the receiving cavity 101, so that the oil stains are vaporized into gas or liquefied into liquid and discharged from the housing, realizing the decontamination and cleaning of the wind wheel 3, the volute 2 and the housing 1, and avoiding the oil stains adhering to the wind wheel 3, the volute 2 and the inner wall of the receiving cavity 101 from affecting the smoke exhaust effect of the range hood.

[0025] In the embodiment of the present invention, the housing 1 has a sewage collecting hole 103 communicating with the receiving cavity 101 at its bottom surface. The volute 2 has a collecting hole 203 communicating with the air duct 202. The collecting hole 203 is located below the wind wheel 3 and above the sewage collecting hole 103. The housing 1 is provided with a sewage collecting member 104 below the sewage collecting hole 103. Among them, the oil stains on the inner walls of the wind wheel 3 and the volute 2 are liquefied by hot air and drip into the sewage collecting member 104 through the collecting hole 203, and the oil stains on the outer wall of the volute 2 and the inner wall of the receiving cavity 101 are liquefied by hot air and drip into the sewage collecting member 104 through the sewage collecting hole 103. The above setting makes the liquefied oil stains gather on the sewage collecting member 104 by arranging the collecting hole 203 on the volute 2, arranging the sewage collecting hole 103 on the housing 1 and arranging the sewage collecting member 104 below the collecting hole 203 and the sewage collecting hole 103, which is convenient for cleaning.

[0026] In the embodiment of the present utility model, the deflector 401 extends vertically. Among the plurality of air outlets 405, at least some of the air outlets 405 facing the air inlet 201 are defined as inner air outlets 406. The inner air outlets 406 are opposite to the air inlet 201 front and back. The inner wall of the diversion channel 404 facing the inner air outlet 406 is inclined inward from top to bottom towards the inner air outlet 406. Through the above arrangement, by configuring the inner wall of the diversion channel 404 facing the inner air outlet 406 to be inclined inward from top to bottom towards the inner air outlet 406, when the gas flows along the diversion channel 404 to the side of the inner air outlet 406, it can move rapidly towards the air inlet 201, enabling the inner air outlet 406 to have a good air supply effect and accelerating the liquefaction or gasification speed of the oil stain.

[0027] In the embodiment of the present utility model, there are two air outlets 405. Among the two air outlets 405, at least some of the air outlets 405 facing the wall of the accommodation cavity 101 and / or the outer wall of the volute 2 are defined as outer air outlets 407. The outer air outlets 407 are opened on the bottom surface of the deflector 401. Through the above arrangement, by arranging the outer air outlets 407 on the bottom surface of the deflector 401 and utilizing the principle that cold air sinks and hot air rises, the hot air discharged into the assembly space 102 through the outer air outlets 407 can cover the assembly space 102 as much as possible, achieving a good cleaning and decontamination effect on the wall of the accommodation cavity 101 and / or the outer wall of the volute 2.

[0028] In the embodiment of the present utility model, the deflector 401 has a partition portion 408. The partition portion 408 divides the diversion channel 404 into a main channel 409 and a plurality of branch channels communicating with the main channel 409. The plurality of air outlets are respectively communicated with the plurality of branch channels. The fan and the heating element are accommodated in the main channel 409. Specifically, there are two branch channels. Among the two branch channels, one branch channel is defined as an inner branch channel 410, and the other branch channel is defined as an outer branch channel 411. The main channel 409 and the two branch channels are arranged vertically, with the main channel 409 on the upper side, and the two branch channels on the lower side and arranged side by side. The inner branch channel 410 has the inner air outlet 406, and the outer branch channel 411 has the outer air outlet 407. Through the above arrangement, by configuring the diversion channel 404 into the main channel 409, the inner branch channel 410 and the outer branch channel 411, with the main channel 409 on the upper side, the inner branch channel 410 and the outer branch channel 411 on the lower side and arranged side by side, and the inner branch channel 410 having the inner air outlet 406 and the outer branch channel 411 having the outer air outlet 407, the structure of the diversion channel 404 is made compact and the air supply effect is good.

[0029] In an embodiment of the present utility model, the blower 402 and a plurality of air outlets 405 are vertically opposite on the flow guide member 401, the blower 402 is located above, and the plurality of air outlets 405 are located below, and the heating element 403 is located between the blower 402 and the plurality of air outlets 405. Since the blower 402 and the plurality of air outlets 405 are vertically opposite on the flow guide member 401 and the heating element 403 is located between the blower 402 and the plurality of air outlets 405, the blower 402, the heating element 403 and the plurality of air outlets 405 are reasonably and compactly arranged on the flow guide member 401, and the air outlet effect is good.

[0030] In an embodiment of the present utility model, the hot air cleaning device 4 is detachably and fixedly connected to the housing 1. Specifically, the housing 1 has a communication hole (not shown in the figure) communicating with the assembly space 102, and one end of the flow guide member 401 away from the plurality of air outlets 405 extends out of the assembly space 102 through the communication hole. The flow guide member 401 has a plurality of abutting portions 412 abutting against the edge of the communication hole, and fasteners (not shown in the figure) for locking the flow guide member 401 to the housing 1 are provided on each abutting portion 412. Since the hot air cleaning device 4 is detachably and fixedly connected to the housing 1, the disassembly, assembly and maintenance of the hot air cleaning device 4 are facilitated.

[0031] In an embodiment of the present utility model, a jack 413 communicating with the flow guide channel 404 is provided at one end of the flow guide member 401 away from the plurality of air outlets 405, and the blower 402 is inserted into the flow guide channel 404 from the jack 413 and is detachably and fixedly connected to the flow guide member 401 at the jack 413. Since the blower 402 is detachably and fixedly connected to the flow guide member 401, the disassembly, assembly and maintenance of the blower 402 are facilitated.

[0032] In an embodiment of the present utility model, the heating element 403 is detachably and fixedly connected to the flow guide member 401, and a lead outlet 414 communicating with the flow guide channel 404 is provided on one side of the flow guide member 401 where the heating element 403 is located. Since the heating element 403 is detachably and fixedly connected to the flow guide member 401, the disassembly, assembly and maintenance of the heating element 403 are facilitated.

[0033] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information can also be called the "second" information, and similarly, the "second" information can also be called the "first" information. In addition, the orientation or positional relationship indicated by terms such as "center of the circle", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0034] As described above, one or more embodiments are provided in combination with specific content, and it is not determined that the specific implementation of the present utility model is limited only to these descriptions. Any approximation, similarity to the method, structure, etc. of the present utility model, or several technical deductions or substitutions made under the premise of the concept of the present utility model should be regarded as within the protection scope of the present utility model.

Claims

1. A hot air decontamination range hood, characterized in that: The invention comprises an outer shell, a volute, a wind wheel and a hot air cleaning device, wherein the outer shell has a containing cavity, the volute is contained in the containing cavity and is spaced apart from the cavity wall of the containing cavity to form an assembly space, the volute has an air duct connected with the assembly space via an air inlet, the wind wheel is contained in the air duct and is exposed via the air inlet, the hot air cleaning device comprises a flow guide, a fan and a heating element, the flow guide is contained in the assembly space, the flow guide has a flow guide channel for accommodating the fan and the heating element, the flow guide channel has a plurality of air outlets connected thereto, among the plurality of air outlets, one air outlet at least partially faces the air inlet, and the remaining air outlets at least partially face the cavity wall of the containing cavity and / or the outer wall of the volute.

2. The hot air decontamination range hood according to claim 1, characterized in that: The guide member extends up and down, and among the several air outlets, at least part of the air outlets facing the air inlet are defined as inner air outlets, and the inner air outlets are opposite to the air inlet front and back, and the guide channel faces the inner wall of the inner air outlet and is inclined from top to bottom toward the inner air outlet.

3. The hot air decontamination range hood according to claim 1, characterized in that: The guide member extends up and down, and there are two air outlets. Among the two air outlets, the air outlet that at least partially faces the cavity wall of the accommodating chamber and / or the outer wall of the volute is defined as an external air outlet, and the external air outlet is opened on the bottom surface of the guide member.

4. The hot air decontamination range hood according to any one of claims 1 to 3, characterized in that: The guide member extends up and down, and has a partition, which divides the guide channel into a main channel and a plurality of branch channels connected to the main channel, and the plurality of air outlets are respectively connected to the plurality of branch channels, and the fan and the heating element are accommodated in the main channel.

5. The hot air decontamination range hood according to claim 4, characterized in that: There are two branch roads, one of which is defined as an inner branch road and the other is defined as an outer branch road. The main road and the two branch roads are arranged vertically, with the main road being on the upper side and the two branch roads being on the lower side and arranged side by side. There are two air outlets, and among the two air outlets, the air outlet at least partially facing the air inlet is defined as an inner air outlet, and the air outlet at least partially facing the accommodating chamber wall and / or the outer wall of the volute is defined as an outer air outlet. The inner branch channel has the inner air outlet, and the outer branch channel has the outer air outlet.

6. The hot air decontamination range hood according to claim 4, characterized in that: The fan and the plurality of air outlets are vertically opposed to each other on the guide member, the fan is located at the top, the plurality of air outlets are located at the bottom, and the heating element is located between the fan and the plurality of air outlets.

7. The hot air decontamination range hood according to claim 1, characterized in that: The hot air cleaning device is detachably fixedly connected to the shell.

8. The hot air decontamination range hood according to claim 7, characterized in that: The shell has a connecting hole connected to the assembly space, the fan and the plurality of air outlets are arranged opposite to each other on the guide member, one end of the guide member away from the plurality of air outlets extends out of the assembly space through the connecting hole, and the guide member has a plurality of stopping portions that stop against the edge of the connecting hole, and each of the stopping portions is provided with a fastener for locking the guide member on the shell.

9. The hot air decontamination range hood according to claim 1, characterized in that: The guide member has a plug hole for the fan to be inserted into the guide channel, and the fan is detachably fixedly connected to the guide member at the plug hole; The heating element is arranged between the fan and the plurality of air outlets, the heating element is detachably fixedly connected to the flow guide element, and the flow guide element is provided with a lead-in port connected to the flow guide channel on one side of the heating element.

10. The hot air decontamination range hood according to claim 1, characterized in that: The outer shell has a dirt collecting hole located on its bottom surface and connected to the accommodating cavity, the volute has a collecting hole connected to the air duct, the collecting hole is located below the wind wheel and above the dirt collecting hole, and the outer shell is provided with a dirt collecting member below the dirt collecting hole.

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