Self-cleaning flow guide structure of lampblack purification all-in-one machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏鑫创美环保科技有限公司
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-12
AI Technical Summary
In the steam self-cleaning mode, the steam in the integrated fume purification unit tends to drift directly out from the central area, resulting in insufficient steam acting on the inner wall and low efficiency of grease dissolution by heat.
A self-cleaning flow guiding structure for an integrated range hood for fume purification was designed, including a steam cleaning unit and a steam flow guiding unit. Water vapor is input through the steam unit and guided to the inner wall of the range hood through the flow guiding unit. Combined with the movement of the drive unit, the contact time and area between the steam and the inner wall are increased.
It improves the efficiency of grease dissolution by heat and enhances the self-cleaning effect.
Smart Images

Figure CN224230105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of range hood technology, and in particular to a self-cleaning flow guiding structure for an integrated range hood for fume purification. Background Technology
[0002] An integrated fume purifier is a kitchen appliance that combines fume extraction and purification functions. It is mainly used to efficiently handle the fumes, odors, and harmful substances generated during cooking. Compared to traditional range hoods (which only exhaust fumes outdoors), it filters, decomposes, or adsorbs fumes through an internal purification system before releasing the treated clean air, making it both environmentally friendly and practical.
[0003] During the exhaust process of an integrated fume purifier, grease in the fumes easily adheres to the inner wall. Some of the grease that is not intercepted enters the high-speed rotating turbine system, where centrifugal force throws the oil mist particles toward the inner wall of the volute, where they condense and flow into the oil cup. During the flow of grease, grease also remains on the inner wall of the range hood. In the steam self-cleaning mode, because most range hoods are vertically installed and lack a steam diversion and guiding structure inside, the flowing steam tends to drift straight out from the central area, resulting in insufficient steam acting on the inner wall. This leads to low efficiency in dissolving grease by heat, thus increasing the power consumption of self-cleaning. Therefore, a self-cleaning guiding structure for an integrated fume purifier is proposed. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the self-cleaning flow guiding structure of the existing integrated oil fume purification machine, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a self-cleaning flow guiding structure for an integrated oil fume purification machine, which is suitable for solving the problem that when the integrated oil fume purification machine is in steam self-cleaning mode, the steam circulating inside the range hood tends to drift directly out from the internal central area, resulting in insufficient steam acting on the inner wall and low efficiency of grease dissolution by heat.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a self-cleaning flow guiding structure for an integrated oil fume purification machine, comprising:
[0008] Range hood;
[0009] A steam cleaning unit installed on a range hood, the steam cleaning unit includes a steam section and a water supply section, the steam section is installed inside the range hood, the steam section is used to input water vapor into the inner cavity of the range hood, and the water supply section is used to supply hot water to the steam section;
[0010] A steam guiding unit installed on a range hood includes a guiding part and a driving part. The guiding part is located inside the range hood and is used to guide water vapor to the inner wall of the range hood. The driving part is used to drive the guiding part to move.
[0011] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the steam section includes a sloping hood fixedly connected to the inner wall of the range hood. The four inner walls of the sloping hood are inclined downward towards the center and form an inverted pyramid shape. An annular tube is fixedly connected to the inner cavity of the sloping hood. Multiple atomizing nozzles are fixedly connected to the wall of the annular tube. The end of each atomizing nozzle penetrates the sloping hood and is flush with the sloping surface of the sloping hood.
[0012] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the water supply unit includes a water tank fixedly connected to the top of the oil fume hood, a water inlet pipe fixedly connected to the top of the water tank, a removable sealing cap on the water inlet pipe, a water delivery pipe fixedly connected between the water tank and the annular pipe, the water delivery pipe passing through the oil fume hood and the inclined hood in sequence, and an electric control valve and a water pump being sequentially fitted on the water delivery pipe.
[0013] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the flow guiding part includes a sealing plate fixedly connected to the inclined surface of the inclined mask, the sealing plate is fitted with the inclined surface of the inclined mask, the inclined surface of the inclined mask is provided with a flow guiding plate, the flow guiding plate is fitted with the inclined surface of the inclined mask, and the flow guiding plate is raised and lowered by a driving part.
[0014] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the nozzle of the atomizing nozzle faces the flow guiding plate, and the surface of the flow guiding plate is smooth.
[0015] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the driving unit includes an electric push rod fixedly connected to the top of the oil fume hood, a horizontal plate fixedly connected to the output end of the electric push rod, a rectangular opening that fits the horizontal plate on one side of the oil fume hood, the horizontal plate slidingly disposed in the rectangular opening, a sealing plate for sealing the rectangular opening fixedly connected to one side of the horizontal plate, and the sealing plate and the flow guiding plate being fixed together by a connecting rod.
[0016] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the driving unit further includes a protective cover fixedly connected to the side wall of the oil fume hood, and the electric push rod is located inside the protective cover.
[0017] As a preferred embodiment of the self-cleaning flow guiding structure of the integrated oil fume purification machine of this utility model, the top of the sealing plate is inclined, and a sealing strip is provided on the outer side of the sealing plate.
[0018] The beneficial effects of this utility model are as follows: When the range hood is performing its self-cleaning function, the water supply unit provides hot water to the steam unit, which enables the steam unit to heat the inside of the range hood. At the same time, the guide plate can guide the steam, so that the water vapor is guided onto the inner wall of the range hood, thereby improving the self-cleaning effect. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0020] Figure 1 This is a schematic diagram of the overall structure of the self-cleaning flow guiding structure of the integrated oil fume purification machine proposed in this utility model;
[0021] Figure 2 This is a partial cross-sectional view of the internal structure of the range hood proposed in this utility model;
[0022] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the inclined mask proposed in this utility model;
[0023] Figure 4 This is a schematic diagram showing the disassembled inclined mask, sealing plate, and guide plate proposed in this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 100. Range hood;
[0026] 200. Steam cleaning unit; 201. Steam section; 201a. Angled hood; 201b. Annular pipe; 201c. Atomizing nozzle; 202. Water supply section; 202a. Water tank; 202b. Water supply pipe; 202c. Water delivery pipe; 202d. Electrically controlled valve; 202e. Water pump;
[0027] 300, Steam guiding unit; 301, Flow guiding part; 301a, Sealing plate; 301b, Flow guiding plate; 302, Driving part; 302a, Electric push rod; 302b, Horizontal plate; 302c, Blocking plate; 302d, Connecting rod; 302e, Protective cover. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0032] Example 1
[0033] Reference Figures 1-4 The first embodiment of this utility model provides a self-cleaning flow guiding structure for an integrated oil fume purification machine, which can guide water vapor onto the inner wall of the oil fume hood to improve the self-cleaning effect. It includes: an oil fume hood 100, a steam cleaning unit 200 and a steam flow guiding unit 300.
[0034] Among them, the steam cleaning unit 200 installed on the range hood 100 includes a steam part 201 and a water supply part 202. The steam part 201 is installed inside the range hood 100 and is used to input water vapor into the inner cavity of the range hood 100. The water supply part 202 is used to supply hot water to the steam part 201.
[0035] A steam guiding unit 300 is installed on the range hood 100. The steam guiding unit 300 includes a guiding part 301 and a driving part 302. The guiding part 301 is installed inside the range hood 100 and is used to guide water vapor to the inner wall of the range hood 100. The driving part 302 is used to drive the guiding part 301 to move.
[0036] The range hood 100 has a control panel on the front to control the operation of the equipment. The interior of the range hood 100 has space for installing purification devices such as electrostatic dust removal and filter plates. The figure is only used to show the distribution of the self-cleaning structure inside the range hood 100. When the inner wall of the range hood 100 is cleaned with high-heat water vapor, the water supply unit 202 supplies hot water to the steam unit 201 located inside the range hood 100. The steam unit 201 converts the hot water into water vapor and enters the inner cavity of the range hood 100. At the same time, the guide part 301 of the steam guide unit 300 moves inside the range hood 100 under the action of the drive unit 302, directing the water vapor to the inner wall of the range hood 100. This increases the contact time and area between the water vapor and the inner wall of the range hood 100, thereby improving the self-cleaning effect.
[0037] Example 2
[0038] Reference Figures 1-4 This is the second embodiment of the present invention. Unlike the previous embodiment, the steam unit 201 includes a sloping hood 201a fixedly connected to the inner wall of the range hood 100. The four inner walls of the sloping hood 201a are inclined downward toward the center and form an inverted pyramid shape. An annular tube 201b is fixedly connected to the inner cavity of the sloping hood 201a. Multiple atomizing nozzles 201c are fixedly connected to the tube wall of the annular tube 201b. The end of each atomizing nozzle 201c penetrates the sloping hood 201a and is flush with the sloping surface of the sloping hood 201a.
[0039] The annular pipe 201b is oriented around the inner cavity of the inclined mask 201a. During self-cleaning, the annular pipe 201b receives hot water input from the water supply unit 202, which is converted into high-temperature steam by the atomizing nozzle 201c. The steam diffuses directionally along the inclined surface of the inclined mask 201a to the guide section 301, and the guide section 301 guides the steam to the inner wall of the range hood 100 to soften the grease.
[0040] In addition, the water supply unit 202 includes a water tank 202a fixedly connected to the top of the fume hood. A water inlet pipe 202b is fixedly connected to the top of the water tank 202a. A removable sealing cap is provided on the water inlet pipe 202b. A water supply pipe 202c is fixedly connected between the water tank 202a and the annular pipe 201b. The water supply pipe 202c passes through the fume hood 100 and the inclined hood 201a in sequence. An electric control valve 202d and a water pump 202e are sequentially mounted on the water supply pipe 202c.
[0041] The sealing cap on the top of the water inlet pipe 202b is removable, allowing the user to directly add hot water to the water tank 202a via the water inlet pipe 202b, or to connect the water inlet pipe 202b to an external hot water supply pipe to add water to the inside of the water tank 202a. When the self-cleaning function is activated, the electric control valve 202d opens, and at the same time, the water pump 202e pressurizes the hot water in the water tank 202a and delivers it to the annular pipe 201b, thereby providing a water source for the steam unit 201.
[0042] Example 3
[0043] Reference Figures 2-4 This is the third embodiment of the present invention. Unlike the previous embodiment, the flow guide 301 includes a sealing plate 301a fixedly connected to the inclined surface of the inclined mask 201a. The sealing plate 301a fits into the inclined surface of the inclined mask 201a. A flow guide 301b is provided on the inclined surface of the inclined mask 201a. The flow guide 301b fits into the inclined surface of the inclined mask 201a. The flow guide 301b is raised and lowered by the drive unit 302.
[0044] The sealing plate 301a is located diagonally above the guide plate 301b. A gap is reserved between the guide plate 301b and the inner wall of the range hood 100. This gap is filled and sealed by the sealing plate 301a. In daily use, the grease adhering to the inner wall of the range hood 100 first slides down to the sealing plate 301a, and then drips down along the inclined surface of the guide plate 301b, eventually automatically collecting in the oil collection box at the bottom of the range hood 100. At the same time, the sealing plate 301a and the guide plate 301b can completely cover and seal the nozzle of the atomizing nozzle 201c to avoid nozzle blockage. When the self-cleaning program is started, the drive unit 302 drives the guide plate 301b to rise vertically above the inclined cover 201a. At this time, the atomizing nozzle 201c sprays high-temperature water vapor. After the steam contacts the guide plate 301b, it forms a wall-adhering guiding effect with the help of its inclined surface to guide the steam to the inner wall of the range hood 100.
[0045] The nozzle of the atomizing nozzle 201c faces the guide plate 301b, and the surface of the guide plate 301b is smooth.
[0046] The atomizing nozzle 201c can directionally spray steam onto the inclined surface of the guide plate 301b to improve the flow guiding effect of the guide plate 301b. At the same time, the smooth surface treatment of the guide plate 301b allows the grease on its surface to dissolve and slide off quickly after being heated, thus ensuring the cleanliness of the guide plate 301b itself.
[0047] In addition, the drive unit 302 includes an electric push rod 302a fixedly connected to the top of the range hood 100. A horizontal plate 302b is fixedly connected to the output end of the electric push rod 302a. A rectangular opening that fits the horizontal plate 302b is opened on one side of the range hood 100. The horizontal plate 302b is slidably disposed in the rectangular opening. A sealing plate 302c for sealing the rectangular opening is fixedly connected to one side of the horizontal plate 302b. The sealing plate 302c is fixed to the guide plate 301b by a connecting rod 302d.
[0048] The electric push rod 302a is used to drive the horizontal plate 302b to move vertically up and down along the rectangular opening. The sealing plate 302c is used to seal the rectangular opening to prevent steam leakage. The sealing plate 302c drives the guide plate 301b to move up and down through the connecting rod 302d, so as to guide the steam through the guide plate 301b.
[0049] Example 4
[0050] Reference Figure 1 and Figure 4 This is the fourth embodiment of the present utility model. Unlike the previous embodiment, the drive unit 302 also includes a protective cover 302e fixedly connected to the side wall of the range hood 100, and the electric push rod 302a is located inside the protective cover 302e.
[0051] The protective cover 302e is used to protect the internal electric actuator 302a from obstructions around the electric actuator 302a that may affect its operation.
[0052] In addition, the top of the sealing plate 302c is sloping, and a sealing strip is provided on the outer side of the sealing plate 302c.
[0053] When oil splashes onto the top of the sealing plate 302c, the slope allows the oil to slide off smoothly, preventing oil accumulation. When the horizontal plate 302b moves the sealing plate 302c to the rectangular opening on the side wall of the range hood 100, the sealing strip fits tightly against the edge of the rectangular opening to prevent high-temperature steam or grease from leaking out of the rectangular opening during the self-cleaning process. A sealing strip groove can be opened on the surface of the sealing plate 302c to install or replace the sealing strip.
[0054] During use, when self-cleaning is required, the user can add hot water to the water tank 202a through the water inlet pipe 202b, or add water to the water tank 202a by connecting to an external hot water supply pipe. Then, the electric control valve 202d is opened, and the water pump 202e pressurizes the hot water in the water tank 202a and delivers it to the annular pipe 201b of the steam unit 201 through the water supply pipe 202c. The hot water in the annular pipe 201b is converted into high-temperature steam by the atomizing nozzle 201c. While the water supply pipe 202c delivers water, the electric push rod 302a of the drive unit 302 drives the horizontal plate 302b to rise, and through the connecting rod 302d, the guide plate 301b rises vertically to above the inclined mask 201a.
[0055] At this time, the atomizing nozzle 201c sprays water vapor onto the inclined surface of the guide plate 301b to form a wall-adhering guiding effect using the inclined surface of the guide plate 301b, and guides the steam to the inner wall of the range hood 100 to improve the cleaning effect. After cleaning is completed, the water pump 202e and the electric control valve 202d are closed. Then, the electric push rod 302a drives the horizontal plate 302b to descend. At this time, the guide plate 301b descends and adheres to the inclined surface of the inclined cover 201a to complete the reset.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A self-cleaning airflow guiding structure for an integrated oil fume purification machine, characterized in that, include: Range hood (100); A steam cleaning unit (200) is installed on a range hood (100). The steam cleaning unit (200) includes a steam section (201) and a water supply section (202). The steam section (201) is installed inside the range hood (100). The steam section (201) is used to input water vapor into the inner cavity of the range hood (100). The water supply section (202) is used to supply hot water to the steam section (201). A steam guiding unit (300) is installed on the range hood (100). The steam guiding unit (300) includes a guiding part (301) and a driving part (302). The guiding part (301) is installed inside the range hood (100) and is used to guide water vapor to the inner wall of the range hood (100). The driving part (302) is used to drive the guiding part (301) to move.
2. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 1, characterized in that: The steam unit (201) includes a sloping hood (201a) fixedly connected to the inner wall of the range hood (100). The four inner walls of the sloping hood (201a) are inclined downward toward the center and form an inverted pyramid shape. An annular tube (201b) is fixedly connected to the inner cavity of the sloping hood (201a). Multiple atomizing nozzles (201c) are fixedly connected to the tube wall of the annular tube (201b). The end of each atomizing nozzle (201c) penetrates the sloping hood (201a) and is flush with the sloping surface of the sloping hood (201a).
3. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 2, characterized in that: The water supply unit (202) includes a water tank (202a) fixedly connected to the top of the fume hood. A water inlet pipe (202b) is fixedly connected to the top of the water tank (202a). A removable sealing cap is provided on the water inlet pipe (202b). A water delivery pipe (202c) is fixedly connected between the water tank (202a) and the annular pipe (201b). The water delivery pipe (202c) passes through the fume hood (100) and the inclined hood (201a) in sequence. An electric control valve (202d) and a water pump (202e) are sequentially fitted on the water delivery pipe (202c).
4. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 3, characterized in that: The flow guide (301) includes a sealing plate (301a) fixedly connected to the inclined surface of the inclined mask (201a). The sealing plate (301a) fits into the inclined surface of the inclined mask (201a). A flow guide (301b) is provided on the inclined surface of the inclined mask (201a). The flow guide (301b) fits into the inclined surface of the inclined mask (201a). The flow guide (301b) is raised and lowered by a drive unit (302).
5. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 4, characterized in that: The nozzle of the atomizing nozzle (201c) faces the guide plate (301b), the surface of which is smooth.
6. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 5, characterized in that: The drive unit (302) includes an electric push rod (302a) fixedly connected to the top of the range hood (100). The output end of the electric push rod (302a) is fixedly connected to a horizontal plate (302b). A rectangular opening that fits the horizontal plate (302b) is provided on one side of the range hood (100). The horizontal plate (302b) is slidably disposed in the rectangular opening. A sealing plate (302c) for sealing the rectangular opening is fixedly connected to one side of the horizontal plate (302b). The sealing plate (302c) is fixed to the guide plate (301b) by a connecting rod (302d).
7. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 6, characterized in that: The drive unit (302) also includes a protective cover (302e) fixedly connected to the side wall of the range hood (100), and the electric push rod (302a) is located inside the protective cover (302e).
8. The self-cleaning flow guiding structure of the integrated oil fume purification machine according to claim 6, characterized in that: The top of the sealing plate (302c) is sloping, and a sealing strip is provided on the outer side of the sealing plate (302c).