Kitchen electric appliance

By introducing purification components into the range hood, solvents are used to dissolve oil fume particles and form foam, solving the problem of grease buildup, maintaining fan airflow and purification effect, and improving user experience.

CN223596016UActive Publication Date: 2025-11-25HANGZHOU ROBAM APPLIANCES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423215998.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-25
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

During use, oil fume particles accumulate in internal exhaust range hoods, forming grease deposits. This reduces the fan's airflow, affecting the smoke extraction effect and indoor air quality, resulting in a poor user experience.

Method used

The system employs a purification component, including a storage tank and a pump. The solvent in the storage tank dissolves the oil fume particles, which are then mixed with the flue gas through a nozzle to form foam. This foam is then dispersed by a fan to prevent the oil fume particles from settling. The purification component is located upstream of the fan to dissolve the oil fume particles.

Benefits of technology

It effectively prevents oil fume particles from forming grease, maintains fan airflow, improves purification effect, avoids indoor air pollution, and enhances user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223596016U_ABST
    Figure CN223596016U_ABST
Patent Text Reader

Abstract

The utility model discloses a kitchen electric appliance, and relates to the technical field of kitchen electric appliances. The kitchen electric appliance comprises a main body and a purification assembly, the main body is provided with a smoke channel, a smoke inlet and a smoke outlet, the smoke inlet and the smoke outlet are communicated with the smoke channel, and a fan is arranged in the smoke channel; the purification assembly comprises a liquid storage tank and a pump body, a dissolving agent is arranged in the liquid storage tank, the dissolving agent is configured to be capable of dissolving oil fume particles, and the pump body can drive the dissolving agent to flow to the flue gas channel, so that the dissolving agent is mixed with the oil fume particles in the flue gas at the upstream of the fan. The kitchen electric appliance can prevent lampblack particles from forming oil dirt, the lampblack purification effect is improved, indoor air is prevented from being polluted, and the user experience is improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially relates to a kitchen appliance. BACKGROUND

[0002] As one of indispensable kitchen equipment in modern family, the range hood can rapidly draw away the waste gas produced by the stove combustion and the flue gas produced in the cooking process, and discharge outdoor, so as to achieve the purpose of purifying the kitchen environment. But the kitchen of part housing does not reserve public flue, and is not convenient for discharging outdoor, so the demand of the internal exhaust type range hood is increasing.

[0003] In the prior art, in order to avoid the influence of the internal exhaust type range hood on indoor air quality, the inhaled flue gas needs to be purified. However, the purification function of the internal exhaust type range hood on the flue gas can only be realized by the centrifugal action of the oil screen and the fan, so that a large amount of oil droplets and particulate matter are deposited in the range hood, the fan and the like to form oil stains after the range hood is used for a period of time, which greatly affects the fan flow, makes the smoke suction effect low, causes the indoor air quality to be poor, and seriously affects the user experience. SUMMARY

[0004] The utility model discloses a kitchen appliance, can avoid the oil fume particle to form the oil stain, improve the purification effect to the oil fume, avoid polluting the indoor air, improve the user experience.

[0005] In order to achieve the purpose, the utility model adopts the following technical scheme:

[0006] A kitchen appliance, comprising:

[0007] A main body, the main body is provided with a flue gas channel, an inlet and an outlet which are communicated with the flue gas channel, and a fan arranged in the flue gas channel;

[0008] A purification assembly, comprising a liquid storage tank and a pump body, the liquid storage tank is provided with a dissolving agent, the dissolving agent is configured to dissolve the oil fume particles, and the pump body can drive the dissolving agent to flow to the flue gas channel, so that the dissolving agent mixes with the oil fume particles in the flue gas upstream of the fan.

[0009] As an optional solution of the above-mentioned kitchen appliance, the purification assembly further comprises a nozzle, the nozzle is provided with a plurality of foaming holes, and the foaming holes are configured to make the dissolving agent foam to form foam.

[0010] As an optional solution of the above-mentioned kitchen appliance, the nozzle comprises a sleeve, the sleeve is communicated with the liquid storage tank, and the sleeve is provided with a foaming hole at one end and / or a side wall.

[0011] As an optional solution of the above-mentioned kitchen appliance, the nozzle is provided with a foaming net.

[0012] As an optional solution of the above kitchen appliance, the foaming net is arranged at a distance from the nozzle.

[0013] As an optional solution of the above kitchen appliance, the purification assembly further comprises a fan, which is configured to blow the foam generated by the nozzle away along the flow direction of the flue gas.

[0014] As an optional solution of the above kitchen appliance, the fan is an axial flow fan, and the nozzle is coaxially arranged with the axial flow fan.

[0015] As an optional solution of the above kitchen appliance, the main body further comprises a head and a panel, the head is arranged on the panel, the smoke inlet is arranged at the front end of the head, and the nozzle is arranged in the head.

[0016] As an optional solution of the above kitchen appliance, the top plate of the head is provided with a ventilation hole, the purification assembly further comprises a fan, the fan is arranged at the ventilation hole, and the nozzle is arranged below the fan.

[0017] As an optional solution of the above kitchen appliance, the main body further comprises a first back plate, a horizontal plate and a second back plate, the first back plate is arranged at the rear end of the horizontal plate and abuts against the installation wall, the second back plate is arranged at the front end of the horizontal plate and below the horizontal plate, and the pump body and the liquid storage tank are arranged in an installation space formed between the second back plate, the horizontal plate and the installation wall.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model provides a kind of kitchen appliance. When starting range hood, purification assembly is also started, and pump body extracts dissolvent from liquid storage tank, so that dissolvent is mixed with flue gas sucked from smoke inlet by fan after entering oil fume passage, since dissolvent can dissolve oil fume particle, oil fume particle will not be deposited to form oil dirt, but will flow to oil collecting box along with dissolvent, prevent clogging oil net and avoid fan air volume loss caused by impeller attachment oil dirt, so that range hood can long guarantee suction capacity, also can improve purification effect to oil fume, avoid indoor air pollution, improve user experience. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure diagram of the kitchen appliance provided by the utility model;

[0021] Figure 2 It is the sectional view of the kitchen appliance provided by the utility model;

[0022] Figure 3 It is Figure 2 Local enlarged view of A in Fig. 1;

[0023] Figure 4 It is the explosion diagram of the purification assembly provided by the utility model.

[0024] In the drawing:

[0025] 1, main body; 11, panel; 12, machine head; 121, top plate; 122, air hole; 13, flue gas passage; 14, fan; 15, first back plate; 16, cross plate; 17, second back plate; 18, smoke inlet;

[0026] 2, purification assembly; 21, liquid storage tank; 22, pump body; 23, nozzle; 231, sleeve; 232, foaming hole; 24, foaming net; 25, fan; 251, bracket. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood broadly, for example, can be fixedly connected, can also be detachably connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] Unless specifically stated and defined otherwise, "on" or "under" of a first feature in relation to a second feature can include that the first feature and the second feature are in direct contact, or that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature in relation to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature in relation to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0031] The technical scheme of the utility model will be further illustrated below in combination with the drawings and through specific embodiments.

[0032] With the development of social economy and the gradual improvement of people's living standards, people pay more and more attention to the quality of life and home, especially more and more people pay attention to kitchen health and understand kitchen fume. As one of the indispensable kitchen appliances in modern families, the range hood can quickly suck away the waste gas generated by the stove combustion and the fume generated in the cooking process, and discharge it outside to achieve the purpose of purifying the kitchen environment. However, the kitchen of part of the housing does not reserve the public flue, and it is not convenient to discharge outside, so the demand for internal exhaust type range hood is increasing.

[0033] As shown in Figure 1 and Figure 2 , the embodiment provides a kind of kitchen appliance, which includes main body 1, main body 1 is equipped with smoke inlet 18 and smoke outlet, the inside of main body 1 is provided with flue gas passage 13 and fan 14, when fan 14 opens, negative pressure is generated in smoke inlet 18, flue gas generated in the cooking process can be sucked into flue gas passage 13 from smoke inlet 18 by fan 14, and the flue gas is discharged from the smoke outlet after passing through fan 14.

[0034] In the prior art, in order to avoid the influence of internal exhaust type range hood on indoor air quality, the inhaled flue gas needs to be purified. Generally, an oil screen is arranged at the smoke inlet 18 and the air inlet of the fan 14 to block and adsorb fume particles. The fume particles that are not adsorbed will be thrown to the inner wall of the shell of the fan 14 by the centrifugal action of the impeller of the fan 14. Generally, the fume particles will flow downward along the inner wall of the shell to the oil collecting box arranged at the bottom of the fan 14, realizing the purification effect of the flue gas and avoiding pollution of indoor air.

[0035] However, after the range hood is used for a period of time, a large amount of oil droplets and particulate matter are deposited on the inside of the range hood, the shell of the fan 14, and the oil screen at the air inlet of the fan 14 to form oil stains, and the oil stains have almost no flowability and thus cannot flow into the oil collection box for collection, which easily affects the passability of the oil screen and also causes the weight of the impeller of the fan 14 to increase, affecting the air volume of the fan 14, making the smoke suction effect poor, causing the indoor air quality to be poor, and seriously affecting the user experience.

[0036] As shown in Figures 2 to 4 To solve the above problems, the kitchen appliance provided in this embodiment further includes a purification assembly 2, the purification assembly 2 includes a liquid storage tank 21 and a pump body 22, the liquid storage tank 21 is provided with a dissolving agent configured to be able to dissolve oil fume particles, and the pump body 22 is able to drive the dissolving agent to flow to the flue gas passage 13 so that the dissolving agent mixes with the oil fume particles in the flue gas upstream of the fan 14.

[0037] When the range hood is turned on, the purification assembly 2 is also started, and the pump body 22 draws the dissolving agent out of the liquid storage tank 21 so that the dissolving agent mixes with the flue gas sucked into the flue gas passage 13 by the fan 14. Since the dissolving agent is able to dissolve oil fume particles, the oil fume particles will not be deposited to form oil stains but will flow into the oil collection box with the dissolving agent, preventing the oil screen from being blocked and avoiding the loss of the air volume of the fan 14 caused by the attachment of oil stains to the impeller, so that the range hood can long ensure the smoke suction capacity and also improve the purification effect on the oil fume, avoid the pollution of indoor air, and improve the user experience.

[0038] In this embodiment, the pump body 22 is an electric pump, which has the advantages of high efficiency, silence, and stable output power, and is able to ensure the continuous operation of the purification assembly 2 without affecting the user experience. In some embodiments, the pump body 22 can also be an oil pump, a gas pump, or the like.

[0039] As shown in Figures 2 to 4 The purification assembly 2 further includes a nozzle 23, the liquid storage tank 21 and the nozzle 23 are in communication, the nozzle 23 is arranged in the flue gas passage 13 and located upstream of the fan 14, and the pump body 22 is able to drive the dissolving agent to be sprayed out through the nozzle 23 to mix with the oil fume particles in the flue gas. The nozzle 23 is able to control the amount of the sprayed dissolving agent or realize a spraying effect, so that the surface area of the same amount of the dissolving agent is increased, that is, the total area of the contact between the dissolving agent and the oil fume particles is increased, the dissolving agent and the oil fume particles are mixed more fully, the oil fume particles are dissolved in the dissolving agent more easily, and the amount of the dissolving agent can be saved.

[0040] Further, the nozzle 23 is provided with a plurality of foaming holes 232. When the dissolving agent is sprayed out of the nozzle 23, the dissolving agent forms foam due to the presence of the foaming holes 232, the foam can float and spread in the flue gas channel 13, so that the sprayed dissolving agent can quickly fill the flue gas channel 13, and the surface area of the dissolving agent is greatly increased, ensuring that the contact and mixing between the dissolving agent and the oil fume particles are more sufficient, so that the oil fume particles adhere to the surface of the foam, the weight of the foam is increased, which is beneficial to the rapid descent of the foam due to gravity, and the purification effect on the flue gas is achieved.

[0041] In the present embodiment, the nozzle 23 includes a sleeve 231, the side wall of the sleeve 231 or one end of the sleeve 231 is provided with a foaming hole 232 to facilitate the foaming of the dissolving agent to form foam, and one end of the sleeve 231 is used for fixation. Further, the side wall of the sleeve 231 and the other end of the sleeve 231 are both provided with foaming holes 232 to increase the amount of foam formed by the dissolving agent and improve the ability to dissolve oil fume particles.

[0042] It is worth noting that the dissolving agent is mixed and prepared by mixing the foaming agent and water in a certain proportion, and the higher the proportion of the foaming agent, the larger the size of the snowflake-shaped foam sprayed out, and the better the purification effect.

[0043] As shown in Figures 2 to 4 The outer periphery of the nozzle 23 is sleeved with a foaming net 24, the foaming net 24 is a mesh structure with pores, and the size of the pores is smaller than the size of the foaming holes 232, to further improve the foaming effect, so that the dissolving agent passing through the foaming holes 232 forms smaller and more foam, to further increase the specific surface area of the foam and improve the effect of purifying flue gas.

[0044] Specifically, the foaming net 24 is a non-woven fabric sleeve, and the material of the non-woven fabric has the characteristics of small and dense pores, which can realize continuous foaming of the dissolving agent under the drive of the pump body 22.

[0045] It is worth noting that in the present embodiment, the foaming net 24 is spaced apart from the nozzle 23, that is, there is a foaming space between the foaming net 24 and the nozzle 23, and the dissolving agent foams and fills the foaming space when it is sprayed out of the nozzle 23 to complete the first foaming, and then the foam in the foaming space is separated into more smaller foam by the foaming net 24 when it passes through the foaming net 24 to complete the second foaming, so as to as far as possible increase the specific surface area of the foam and improve the effect of purifying flue gas.

[0046] In the embodiment, the purification assembly 2 further comprises a fan 25 configured to blow the foam generated by the nozzle 23 along the flow direction of the flue gas. When the nozzle 23 generates a large amount of foam, the fan 25 can blow the foam away from the nozzle 23, so that the foam flows in the same direction as the oil fume particles, ensuring that the foam can mix with the oil fume particles, avoiding the accumulation of the foam near the nozzle 23, which causes the oil fume particles to not contact enough foam, and also avoiding the spontaneous fragmentation of the foam affecting the purification effect.

[0047] As shown in Figure 3 and Figure 4 , the fan 25 is an axial fan, and the nozzle 23 is coaxially arranged with the axial fan. This structure can make the foam on the outer periphery of the nozzle 23 receive the same blowing force, so that the foam is more evenly distributed during blowing, which can not only improve the range of mixing the oil fume particles with the foam, but also improve the purification capacity.

[0048] Specifically, the fan 25 comprises a bracket 251, and the other end of the sleeve 231 is connected with the bracket 251 to ensure the coaxiality of the sleeve 231 and the fan 25. In the embodiment, the sleeve 231 and the bracket 251 are threadedly connected, which has high connection reliability and is not easy to fall off. In some embodiments, the sleeve 231 and the bracket 251 can also be clamped, which is convenient for disassembly and assembly.

[0049] It should be noted that the above-mentioned kitchen appliance can be a range hood or an integrated cooker with an oil fume suction function. Both of them can use the purification assembly 2 to purify the suction flue gas, thereby optimizing the indoor environment.

[0050] In the embodiment, the kitchen appliance is taken as an example to illustrate the integrated cooker.

[0051] As shown in Figure 1 and Figure 2 , the main body 1 of the integrated cooker comprises a head 12 and a panel 11, and the head 12 is arranged on the panel 11. The panel 11 is further provided with a burner (not shown in the figure), which is used for cooking. In order to facilitate the user to inhale the flue gas when cooking through the burner, the smoke inlet 18 is arranged at the front end of the head 12.

[0052] In the embodiment, the top plate 121 of the machine head 12 is provided with a ventilation hole 122, an axial flow fan is arranged in the ventilation hole 122, and the nozzle 23 is arranged below the axial flow fan. When the axial flow fan is turned on, the foam generated by the nozzle 23 and the foaming net 24 is blown downward by the axial flow fan into the machine head 12, and can be fully mixed with the oil fume particles in the smoke gas sucked in by the smoke inlet 18. The mixed liquid is settled to the bottom surface inside the main body 1 under the action of gravity, or enters the fan 14 and is thrown into the shell of the fan 14 under the centrifugal action of the impeller of the fan 14. Since the oil fume dissolved in the dissolving agent cannot be deposited into oil dirt again, but has fluidity, the oil fume can flow into the oil collecting box at the bottom of the main body 1, which is convenient for the user to clean.

[0053] In some embodiments, the axial flow fan can also be arranged on the two side walls of the machine head 12 or below the panel 11, as long as it can blow the foam into the smoke channel 13, which will not be described here.

[0054] It can be understood that, since the pump body 22 needs to work continuously, in order to prevent the oil fume particles from adhering to the surface of the pump body 22 and affecting the normal use, the pump body 22 and the liquid storage tank 21 need to be arranged outside the main body 1. Generally, the integrated cooker needs to be installed close to the wall to save space and improve the aesthetics.

[0055] As shown in Figure 2 The main body 1 further comprises a first back plate 15, a horizontal plate 16 and a second back plate 17. The first back plate 15 is arranged at the rear end of the horizontal plate 16 and is installed close to the wall. The second back plate 17 is arranged at the front end of the horizontal plate 16 and is located below the horizontal plate 16. The fan 14 is arranged in front of the second back plate 17. When the fan 14 is started, the smoke enters the machine head 12, passes through the first back plate 15 and the horizontal plate 16 in turn, enters the fan 14, and is blown out by the fan 14 and then discharged through the smoke outlet.

[0056] It can be understood that there is an installation space between the second back plate 17, the horizontal plate 16 and the wall. The pump body 22 and the liquid storage tank 21 are arranged in the installation space to ensure that the working environment of the pump body 22 and the liquid storage tank 21 is relatively clean, thereby reducing the number of maintenance and cleaning and prolonging the service life.

[0057] The above is only a preferred embodiment of the present application. For those skilled in the art, according to the idea of the present application, the specific implementation and application range can be changed. The content of the specification should not be understood as limiting the present application.

Claims

1. A kitchen appliance, characterized in that, include: The main body (1) is provided with a flue gas passage (13) and a flue gas inlet (18) and a flue gas outlet connected to the flue gas passage (13). A fan (14) is provided inside the flue gas passage (13). The purification component (2) includes a liquid storage tank (21) and a pump body (22). The liquid storage tank (21) contains a solvent configured to dissolve oil fume particles. The pump body (22) can drive the solvent to flow to the flue gas channel (13) so that the solvent mixes with the oil fume particles in the flue gas upstream of the fan (14).

2. The kitchen appliance according to claim 1, characterized in that, The purification component (2) further includes a nozzle (23) having a plurality of foaming holes (232) configured to cause the solvent to foam into foam.

3. The kitchen appliance according to claim 2, characterized in that, The nozzle (23) includes a sleeve (231) which is connected to the liquid storage tank (21). One end of the sleeve (231) and / or the side wall of the sleeve (231) are provided with the foaming hole (232).

4. The kitchen appliance according to claim 2, characterized in that, The nozzle (23) is fitted with a foaming net (24) around its outer periphery.

5. The kitchen appliance according to claim 4, characterized in that, The foaming net (24) and the nozzle (23) are spaced apart.

6. The kitchen appliance according to claim 2, characterized in that, The purification component (2) also includes a fan (25) configured to disperse the foam generated by the nozzle (23) along the flow direction of the flue gas.

7. The kitchen appliance according to claim 6, characterized in that, The fan (25) is an axial flow fan, and the nozzle (23) is coaxially arranged with the axial flow fan.

8. The kitchen appliance according to any one of claims 2 to 5, characterized in that, The main body (1) also includes a head (12) and a panel (11). The head (12) is disposed on the panel (11), the smoke inlet (18) is opened at the front end of the head (12), and the nozzle (23) is disposed inside the head (12).

9. The kitchen appliance according to claim 8, characterized in that, The top plate (121) of the head (12) is provided with a ventilation hole (122). The purification component (2) also includes a fan (25), which is located in the ventilation hole (122) and the nozzle (23) is located below the fan (25).

10. The kitchen appliance according to claim 8, characterized in that, The main body (1) also includes a first back plate (15), a horizontal plate (16), and a second back plate (17). The first back plate (15) is disposed at the rear end of the horizontal plate (16) and abuts against the mounting wall. The second back plate (17) is disposed at the front end of the horizontal plate (16) and located below the horizontal plate (16). The pump body (22) and the liquid storage tank (21) are disposed in the installation space formed between the second back plate (17), the horizontal plate (16), and the mounting wall.