CN114484327B

CN114484327B - Household appliance

Info

Publication number: CN114484327B
Application number: CN202011149918.4A
Authority: CN
Inventors: 何李; 沈逸岚
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2024-06-07
Anticipated expiration: 2040-10-23
Also published as: CN114484327A

Abstract

The invention aims to provide a household appliance which can solve the problem that a large amount of accumulated ash is blown out when an air duct system is reused after long-term non-use. The household appliance includes: the lamp comprises a power input part, a lighting module and a shell, wherein the power input part, the lighting module and the shell are sequentially arranged; the fan is arranged in the shell and used for driving air flow to travel from the air inlet to the air outlet; the lighting module has a light emitting surface facing the shell air inlet and the shell air outlet on one side of the lampshade, and is arranged on the same side of the lampshade and facing the light emitting surface. Thereby, the air flow direction in the household appliance is: the air outside the shell enters the shell through the air inlet arranged on the lamp housing, and flows to the air outlet which is also positioned on the lamp housing and is on the same side as the air inlet by the driving of the fan, and then is blown out from the air outlet.

Description

Household appliance

Technical Field

The invention relates to the field of household appliances, in particular to a household appliance with lighting and air purifying functions.

Background

With the gradual improvement of the living standard of people and the gradual popularization of smart home, the market increasingly requires home appliances which are integrated with more functions or cooperate with each other more frequently.

When laying out lighting household appliances, interior designers need to consider the problem of covering the indoor space and lighting uniformity. The layout feature is particularly suited for integrating certain types of other functions, such as air purification.

Some household appliances of the prior art integrate lighting and air purifying functions, and air in a room is purified by blowing out ions or particles having an air purifying function from an opening of the household appliance. A plurality of household appliances are reasonably distributed in the indoor space, and the coverage comprehensiveness and uniformity of illumination and air purification can be simultaneously met.

However, the existing home appliances encounter at least one of the following problems when integrating the air cleaning apparatus having the air duct.

1. How to solve the problem of loss of particles or ions having air purifying activity.

Heat dissipation from the heat generating elements in the lighting module or the circuit module may be problematic due to the increase in the degree of integration of the device. For this reason, chinese patent CN209569698U discloses a heat dissipation mechanism of an integrated machine for lighting and air purification. The heat radiation mechanism divides the air flow flowing through the substance generator into two paths, wherein one path of the air flow is blown out to the side after passing through the heating element, and the other path of the air flow is blown out to the user. In which the air flow blown out sideways carries particles or ions having air-purifying activity, but this part of the particles or ions cannot reach the target area of the household appliance facing the user and will be lost.

2. How to solve the problem of blowing out a large amount of accumulated ash when the dust collector is reused after long-term non-use.

In the prior art, some household appliances integrated with an air duct system are designed such that air is sucked in through a housing air inlet located at one side of the power input part and is blown out through a housing air outlet located at one side of the lamp housing. When the household appliance is used, the electric power input part is usually installed towards or embedded into a ceiling, so that dust is easy to fall or deposit, and cleaning is difficult. If the air duct system of the household appliance is restarted after being closed for a long time, dust accumulated on one side of the power input part is blown out to the direction of the lampshade through the air duct and is blown to a user or an indoor environment, and user experience is affected.

3. How to solve the problems of 'granular feel' on the lamp shade and 'shadow' at the opening part.

Specifically, for a lighting module employing a plurality of light emitting units (for example, LED beads in the form of a patch), the cover surface of the lamp housing needs to be spaced more than a certain distance from the light emitting surface formed by the plurality of light emitting units, otherwise, each light emitting unit projects a spot with a brighter corresponding position and a darker surrounding position on the cover surface of the lamp housing, and the soft light characteristic of the lamp housing itself is insufficient to compensate or conceal the presence of the spot, thereby resulting in the generation of a "granular feel".

In addition, the side of the household appliance facing the lamp housing needs to leave an extra space for the opening, but cannot be shielded by the lamp housing. In order to ensure the air outlet effect, the air duct is preferably extended to be connected with the opening part. If the cover surface of the lamp shade is a plane, the air duct directly extends to be connected with the cover surface of the lamp shade, the illumination of the opening part is possibly influenced, and when the opening part cannot be fully illuminated, the part of the opening part of the household appliance can form shadow visually, so that the using feeling is influenced.

Accordingly, there is a need in the art to provide a household appliance that can solve at least one of the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a household appliance which can solve the problem that a large amount of accumulated ash is blown out when an air duct system is reused after long-term non-use.

The household appliance includes: the shell is provided with a shell air inlet, a shell air outlet, an air duct connecting the shell air inlet and the shell air outlet and a lampshade; the fan is arranged in the shell and used for driving air flow to flow from the shell air inlet to the shell air outlet; a lighting module having a light emitting surface facing a front end of the home appliance; the lamp shade cover is established in the front end of lighting module, and in addition, casing air intake, casing air outlet and lamp shade all set up in this domestic appliance's front end terminal surface department, and the casing air intake is located the edge of front end terminal surface, and the casing air outlet is located the central authorities of front end terminal surface. Thereby, the air flow direction in the household appliance is: air outside the shell enters the shell through a shell air inlet arranged at the front end of the household appliance in a front-to-back direction, flows to a shell air outlet also positioned at the front end of the household appliance by driving a fan, and is blown out from the shell air outlet in a back-to-front direction.

According to this technical scheme, casing air intake and casing air outlet all set up on domestic appliance front end terminal surface, so the air will get into the casing air intake in the direction from front to back. And because the front end face is generally towards the user, dust is not easy to accumulate and is easy to clean, the dust is not easy to be introduced into the air duct in the air inlet mode, and therefore the cleanliness of the blown air flow can be ensured.

In a preferred technical solution of the present invention, the household appliance further comprises: a circuit module, the lighting module is driven by the circuit module to emit light; and an electronic component chamber housing the circuit module, at least a portion of the chamber wall of the electronic component chamber being configured as a portion of an air duct extending from the housing air inlet to the housing air outlet. Thereby, the air flow direction in the household appliance is changed to: after the air outside the shell enters the shell from the shell air inlet, the heat conducted by the part of air channels in the electronic part chamber is radiated through the air channels formed by the chamber walls of the part of electronic part chamber. Because the shell air inlet and the shell air outlet are arranged on the same surface, the air duct can be bent and prolonged in the internal layout of the shell, and the characteristics can be utilized, so that the contact area between cooling air flow and an electronic part room is further increased, and the heat dissipation effect is improved.

Preferably, the electronic component chamber is sealed, and a part of the chamber wall of the electronic component chamber is configured as an air duct for heat dissipation, so that the electronic component chamber is sealed to prevent external foreign matters from entering the electronic component chamber while ensuring heat dissipation.

Preferably, the electronic component chamber may have a heat radiation hole formed in a wall of the air duct. Therefore, when the circuit module in the electronic part room works, a large amount of heat is generated by the heating element in the circuit module, so that the air in the electronic part room is heated and expanded, and the hot air flows out of the electronic part room through the radiating holes formed in the chamber wall and is taken away by the air flow in the air duct, thereby realizing active heat dissipation and further improving the heat dissipation effect. Preferably, the chamber wall provided with the heat dissipation holes is an upper chamber wall of the electronic component chamber, and the hot air is light, so that the hot air can smoothly flow out of the heat dissipation holes formed in the upper chamber wall, and the effect of inhibiting external dust from falling into the electronic component chamber can be achieved when the air flow is upward for heat dissipation.

Preferably, the wall part of the electronic component chamber constituting the air duct is made of a metal material. The metal material has good heat conduction, and can further improve the heat dissipation efficiency when air passes through the air duct.

In a preferred technical scheme of the invention, the circuit module comprises a circuit board, the circuit board is provided with a heat dissipation end which extends outwards from the electronic component chamber and enters the air duct, and at least one part of heating elements in the circuit module are arranged on the heat dissipation end. The circuit board extends out of the electronic component chamber and part of the heating element is arranged outside the air duct, so that air in the air duct is in direct contact with the heat-conducting circuit board and the heating element, and the heat dissipation effect of the air on the circuit module is enhanced.

Preferably, the fan and the fan are closely corresponding to the air outlet of the shell, so that the air outlet wind power of the household appliance can be improved.

In a preferred technical scheme of the invention, the lighting module comprises an annular substrate and a plurality of LED lamp beads (namely light-emitting units) distributed on the surface of the annular substrate, wherein a part of the annular substrate extends outwards to the inside of the air duct, so that the annular substrate is directly contacted and radiated by utilizing air flow in the air duct.

In a preferred embodiment of the invention, the household appliance further comprises a substance generator for releasing hydroxyl radicals into the air duct. Thereby the household appliance has the functions of lighting and purifying air.

In a preferred technical solution of the present invention, the household appliance further comprises: the air duct is provided with a substance generator near the inner side of the pipe wall of the air duct, the fan is communicated with the air duct in a matched mode and connected with the air duct, and the electronic part chamber is arranged at the periphery of the air duct. After entering the household appliance, the air flows into the air guide pipe after flowing through a part of air duct formed by the upper chamber wall of the electronic component chamber, and substances such as hydroxyl radicals are generated by the substance generator and diffused in the air guide pipe, then are contacted with the air flow in the air guide pipe, purified and blown out from the air outlet of the shell.

In a preferred technical solution of the present invention, the household appliance further comprises: the air distribution mechanism comprises an air guiding pipe, an air deflector positioned in the air guiding pipe and a vent hole arranged on the side wall of the air guiding pipe and communicated with the electronic component chamber, the air deflector guides part of air flow in the air guiding pipe to the vent hole, and the substance generator is arranged near the inner side of the pipe wall of the air guiding pipe and is separated from the vent hole by the air deflector. Therefore, the change of the air flow path in the household appliance is that after air enters the household appliance from the shell air inlet at the front end face, the air flows into the air guide pipe after flowing through a part of air channel formed by the upper chamber wall of the electronic component chamber, the air guide pipe is divided into two parts by the air guide plate, one part of air flow flows into the electronic component chamber from the vent hole on the side wall of the air guide pipe, the circuit module is subjected to secondary heat dissipation, and after the other part of air flow flows through the substance generator, the air carrying hydroxyl radicals is blown out from the shell air outlet under the driving of the fan.

According to the technical scheme, the air distribution mechanism is additionally arranged in the household appliance, and air flowing through the partial air channel formed by the upper chamber wall of the electronic part chamber is distributed into a part and flows into the electronic part chamber to secondarily dissipate heat of the circuit module, so that the heat dissipation effect is further enhanced, and the heat dissipation mechanism of the household appliance can meet the heat dissipation requirement of the circuit module with larger power.

In a preferred technical solution of the present invention, the household appliance further comprises: the installation window is arranged on the pipe wall of the air guide pipe or the air guide pipe and is used for installing the substance generator; the substance generator is mounted at the mounting window in such a manner that the substance generating surface faces the inside of the air guide tube or the air introduction tube. The installation window is arranged on the pipe wall to install the substance generator, so that the installation and the disassembly of the substance generator can be facilitated, and the maintenance and the wiring are simple.

Preferably, a wind deflector is provided near the wall of the air guide duct or the air guide duct on the side of the installation window close to the fan, and the wind deflector is formed integrally with the substance generator or is provided on the inner side of the wall of the air guide duct or the air guide duct, and covers or shields the substance generation surface of the substance generator so as not to be directly purged by the airflow. Therefore, the air flow blown into the air guide pipe or the air guide pipe by the fan can not directly blow the substance generator, in particular to the substance generating surface. And because the wind shield is formed inside the air guide pipe and covers the substance generation surface at proper intervals, active substances generated by the substance generator can be carried and blown out along with the air flow in the air guide pipe uniformly after being fully and freely diffused in the space formed by the proper intervals, so that the air purification effect of the household appliance is facilitated, the blowing of the air flow to the substance generation surface is avoided, and the service life of the substance generation is prolonged. Wherein preferably the heating element of the circuit module is arranged in a position opposite and adjacent to the vent. The heating element with larger heat dissipation requirement in the circuit module is arranged near the vent hole of the air inflow electronic component chamber, so that the main heating source of the circuit module can be intensively dissipated, the heat dissipation efficiency is improved, and the heat dissipation effect is also ensured.

Preferably, the outer periphery of the air guide pipe or the air guide pipe and the inner periphery of the electronic part room are partially overlapped with each other, so that the air guide pipe or the air guide pipe and the electronic part room can be communicated at the partially overlapped part. Therefore, the air flowing into the electronic component chamber can be blown out from the air outlet of the shell through the communication part after heat dissipation, namely, the air outlet of the household appliance is improved.

In the preferred technical scheme of the invention, the heating element refers to one or a combination of a plurality of inductors, bridge stacks, fuses, switching tubes, resistors, power triodes and integrated chips.

Preferably, the household appliance further comprises a filter screen arranged to cover the air inlet of the housing. The dust in the air can be filtered off by the filter screen structure, so that the cleanliness of the sucked air is further guaranteed, and the filter screen is more convenient to clean and replace for a user because the shell air inlet is arranged at the front end face of the shell.

In the preferred technical scheme of the invention, the electric appliance further comprises an opening and closing mechanism for controlling the opening degree of the air inlet or the air outlet of the shell, so that dust can be further prevented from entering the shell.

Preferably, the opening and closing mechanism opens, closes or adjusts the housing air inlet or the housing air outlet in response to the operation of the fan, so that the air inlet or the air outlet of the fan and the dustproof performance of the household appliance can be considered.

Drawings

Fig. 1 is a schematic view of an electric appliance according to a first embodiment of the present invention;

Fig. 2 is a schematic structural view (sectional view) of a home appliance in a second embodiment of the present invention;

fig. 3 is a schematic structural view of an air duct according to a second embodiment of the present invention.

Fig. 4 is a schematic structural view (sectional view) of a home appliance in a third embodiment of the present invention;

FIG. 5a is a schematic view of a wind splitting mechanism without a substance generator according to a fourth embodiment of the present invention;

FIG. 5b is a schematic view of a wind splitting mechanism of an assembled substance generator according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural view (sectional view) of a home appliance in a fifth embodiment of the present invention;

fig. 7 is a schematic view of heat transfer and airflow direction of a home appliance in a fifth embodiment of the present invention;

fig. 8 is a schematic structural view (cross-sectional view) of a home appliance having a heat radiating fin in a fifth embodiment of the present invention;

fig. 9 is a schematic view showing a structure of a heat radiating fin in a fifth embodiment of the present invention;

fig. 10 is a schematic view of a structure of a home appliance in a sixth embodiment of the present invention;

fig. 11 is a schematic structural view (sectional view) of a home appliance in a seventh embodiment of the present invention;

fig. 12 is a schematic view of the structure of a lighting module in a seventh embodiment of the present invention;

Fig. 13 is a schematic structural view (sectional view) of a home appliance in an eighth embodiment of the present invention;

fig. 14 is a schematic structural view (sectional view) of a home appliance in a ninth embodiment of the present invention;

Fig. 15 is a schematic structural view (sectional view) of a home appliance in a tenth embodiment of the present invention;

fig. 16 is a schematic structural view of a lamp cover of a home appliance in an eleventh embodiment of the present invention;

Fig. 17 is a schematic structural view of a lighting module in the eleventh embodiment;

fig. 18 is a schematic structural view of a lamp cover of a home appliance in a twelfth embodiment of the present invention;

fig. 19 is a schematic view of a structure of a connection part of a lampshade, a shell air outlet and an air guide pipe in the twelfth embodiment;

FIG. 20 is a diagram of a case where a case air inlet or a case air outlet is opened according to some embodiments of the present invention;

FIG. 21 is a diagram of a housing inlet or housing outlet in accordance with some embodiments of the present invention;

Reference numerals illustrate: 1, a shell; 1a, a shell air inlet; 1b, a shell air outlet; 101, a lampshade; 101a, a main body light-transmitting portion; 101b, bending the light-transmitting part; 101c, an inner peripheral wall; 2, a fan; 2a, a fan air outlet; 3, an electronic part room; 3a, a circuit module; 3a1, heating element; 3b, a radiating end; 301, annular heat dissipation channels; 301a, heat dissipation fins; 302, chamber walls; 302a, heat dissipation holes; 4, an air dividing mechanism; 4a, an air deflector; 4a1, a curved air deflector; 4a2, a curved air deflector; 5, a substance generator; 6, a substrate; 6a, a substrate air outlet part; 7, an air guide pipe; 7a, an air inlet end of the air guide pipe; 7b, an air outlet end of the air guide pipe; 8, a lighting module; 801, a substrate (annular substrate); 802, light emitting units (LED beads); 9, an air inlet chamber; 10, an opening part; 11, a baffle; 12, an air guiding pipe; 12a, ventilation holes; 13, a wind shield; 13a, curved windshields; 14, installing a window; x, a substance generation surface; 15, power input.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can make adjustments as needed to suit a particular application.

It should be noted that, in the description of the present invention, terms such as "outer," "inner," "upper," "lower," "front," "rear," and the like, which indicate positional relationships are based on the directions or positional relationships shown in the drawings, are merely for the purpose of facilitating a more visual understanding of the present invention by those skilled in the art, and do not indicate or imply that the devices or components must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

First embodiment

In the first embodiment of the present invention, there is provided a home appliance which may be any home appliance whose circuit module requires heat dissipation and which blows out a specific substance by using an air duct structure provided therein, for example, an air cleaning apparatus whose operation principle is an anion method or a plasma method, or may be other home appliances (such as a lighting device and the like) which integrate anion, charged water particles, or plasma generation and blowing functions.

Fig. 1 is a schematic structural view of a home appliance according to a first embodiment of the present invention, as shown in fig. 1, the home appliance includes: the device comprises a shell 1, a fan 2, a substance generator 5 and a fan-dividing mechanism 4, wherein a shell air inlet 1a and a shell air outlet 1b are formed on the shell 1, and external air enters the shell from the shell air inlet 1a, passes through an air channel and is finally discharged from the shell air outlet 1 b; the fan 2 is arranged inside the shell 1 and is used for driving air flow to flow from the shell air inlet 1a to the shell air outlet 1 b; the substance generator 5 is disposed in the air duct between the fan and the housing air outlet 1b, and is configured to release substances into the air flow, and since the air flow flows in a direction from the housing air inlet 1a to the housing air outlet 1b, the substances released into the air flow can be carried by the air flow, and move to the housing air outlet 1b and finally blow out from the housing air outlet 1 b; the air dividing mechanism 4 is located on the upstream side of the substance generator 5, and is used for dividing the air flow entering the housing 1 into two parts, wherein one part of the air flow passes through the substance generator 5, and the other part of the air flow does not pass through the substance generator 5 but passes through the circuit module 3a located inside the household appliance, so that the circuit module 3a is used for radiating heat, and the air flow passing through the circuit module 3a can be recombined with the air flow passing through the substance generator 5 and blown out from the housing air outlet 1b, or can be independently discharged from the air flow channel of the other part of the housing 1, and the air flow is not limited herein.

It should be noted that, in the present embodiment, the fan 2 is disposed on the upstream side of the air dividing mechanism 4 for convenience of drawing and description, and those skilled in the art will understand that, in practical application, the fan 2 may be disposed at other positions (for example, on the downstream side of the air dividing mechanism 4 or the substance generator 5) and may also serve to drive the airflow from the housing air inlet 1a to the housing air outlet 1 b.

Note that, in the present embodiment, the air dividing mechanism 4 may be any type of mechanism that can divide or guide an air passage into two or more air passages. In some embodiments, for example, a combination of an air deflector and other structures may be used to guide part of the air flow in other directions, or an air guide pipe parallel to the air flow direction and having a caliber smaller than that of the cross section of the air flow may be used to divide the air flow into a part that continues to flow along the air guide pipe and another part that is blown to the outside of the air guide pipe. Of course, those skilled in the art will understand that the wind splitting mechanism 4 capable of splitting or guiding a single wind channel into multiple wind channels is not limited to the above two forms, and other embodiments do not exceed the protection scope of the present invention if only the structure of the wind splitting mechanism 4 is simply modified or replaced, which is in accordance with the gist of the present invention.

In this embodiment, the flow direction of air inside the household appliance is: the air outside the shell 1 enters the shell 1 through the shell air inlet 1a, is driven by the fan 2 to flow to the air dividing mechanism 4, the air flow passing through the air dividing mechanism 4 is divided into two parts, one part of the air flows to the substance generator 5, and then is blown out of the shell 1 through the air flow channel of the shell air outlet 1b, and the other part of the air flows into the household electrical appliance, and is blown out of the shell 1 after radiating the inside of the household electrical appliance.

In the present embodiment, the substance provided by the substance generator 5 has a certain activity, for example, an activity of purifying air by sterilizing or disinfecting means. In some existing solutions (for example, the solution provided in CN 209569698U), the air flow for heat dissipation is the air flow that has already flowed through the substance generator 5 and is loaded with substances, and after the heat dissipation is performed on the light source board or the circuit board, the air flow is blown out. This arrangement of the airflow paths causes the active material in the portion of the airflow for heat dissipation to fail to perform the air cleaning function, i.e., to be lost. In the present embodiment, a part of the air flow is separated before the air flows into the substance generator 5 for heat dissipation of the circuit module, so that loss caused by that the air carrying the substance is discharged after being used for internal heat dissipation is avoided, secondary pollution caused by dust and the like in the circuit module when the air carrying the substance is reused for heat dissipation is avoided, and therefore, the workload of the substance generator 5 can be reduced and the purifying effect is optimized.

Second embodiment

In a second embodiment of the present invention, a household appliance using an air guide pipe 7 as a fan mechanism 4 is provided, the second embodiment is a more specific illustration of the first embodiment, and parts not specifically illustrated include reference numerals and text descriptions, which are the same as those of the first embodiment, and are not repeated herein.

In the second embodiment, as shown in fig. 2, the household appliance is provided with the air guide duct 7 as the air dividing mechanism 4, the substance generator 5 is provided near the inner side of the duct wall of the air guide duct 7, the air inlet end of the air guide duct 7 (the upper end of the air guide duct 7 in fig. 2) is communicated with the fan air outlet 2a of the fan 2, and the cross-sectional area of the air inlet end of the air guide duct 7 is smaller than the area of the fan air outlet 2a, in other words, the air flow blown from the portion of the fan air outlet 2a which does not overlap with the air inlet end of the air guide duct 7 does not enter the air guide duct 7 but is branched to the outer side of the air guide duct 7 for heat dissipation. The deviation generated by the mismatch between the cross section of the end of the air guide pipe 7 connected with the fan air outlet 2a of the fan 2 and the cross section of the fan air outlet 2a can achieve the effect of wind separation.

The air flow direction inside the home appliance in the second embodiment of the present invention is: after entering the fan 2, the air is blown out from the fan air outlet 2a, wherein the air blown out from the fan air outlet 2a part corresponding to the air guide pipe 7 flows into the air guide pipe 7, and the air blown out from the part with the cross section of the fan air outlet 2a being more than the cross section of the air guide pipe 7 (namely, the part outside the air guide pipe 7) is split into the air flow outside the air guide pipe 7, so that the air can flow into the household appliance for heat dissipation.

Through the above mode, the area of the fan air outlet 2a is larger than that of the air guide pipe so as to divide air flow outside the air guide pipe into air for heat dissipation, namely, the part of air inlet quantity outside the air guide pipe 7 can effectively improve the heat dissipation effect while the purifying air quantity of the household appliance is not influenced.

Preferably, the cross-sectional area of the air outlet end of the air guide pipe 7 is larger than the cross-sectional area of the air inlet end of the air guide pipe 7. As shown in fig. 3, the pipe diameter of the air guide pipe 7 from the air inlet end 7a of the air guide pipe to the air outlet end 7b of the air guide pipe is gradually increased, and the cross-sectional area of the air outlet end of the air guide pipe 7 is set to be larger than that of the air inlet end of the air guide pipe 7, so that a physical space can be fully reserved at the air inlet end part of the air guide pipe 7 to ensure the air passage branched to the outer side of the air guide pipe 7. Meanwhile, the cross section of the air outlet end of the air guide pipe 7 is larger, so that the pressure loss of air flow can be reduced, and the layout of an air duct and the design of fan power are facilitated.

Preferably, the household appliance further comprises an electronic component chamber 3, wherein the electronic component chamber 3 is positioned on the outer side of the air guide pipe 7 in a surrounding manner, and a circuit module 3a of the household appliance is accommodated therein. So that the heat exchange with the electronic component chamber 3 can be performed through the partial air flow outside the air guide pipe 7, and the heat dissipation effect can be achieved.

In this embodiment, as a preferred embodiment, the household appliance is an LED lamp, and includes a lighting module 8 and a substrate 6, wherein the lighting module 8 is electrically connected with the circuit module 3a, and thus, the circuit module 3a can drive the lighting module 8 to emit light; the inner periphery of the substrate 6 is connected to the air duct 7, the outer periphery is connected to the housing 1, and the lighting module 8 and the circuit module 3a are disposed on both sides of the substrate 6. The light emitting surface of which faces the lamp housing of the household appliance (i.e., the negative direction of the Y-axis in fig. 2), the same applies to the latter embodiment unless otherwise specified. The structure of the household appliance defines an axial direction (i.e., Y-axis direction in fig. 2) and a radial plane (i.e., a plane formed by the X-axis and the Z-axis in fig. 2).

Preferably, the inner periphery of the base plate 6 is further formed with a base plate air outlet portion 6a, and the base plate air outlet portion 6a is mutually communicated with the housing air outlet 1b, so that air flow for purification and air flow after heat dissipation can be collected at the housing air outlet 1b, and then blown out of the housing 1 through an air flow channel of the housing air outlet 1b, and the air flow collection improves the air outlet quantity and simultaneously simplifies the structure of the household appliance.

In the present embodiment, the wall of the air duct 7 of the household appliance is opened with a mounting window 14, the substance generator 5 is mounted at the mounting window 14, and a wind deflector 13 is formed on the wall of the mounting window 14 on the side close to the fan 2, preferably, the substance generating surface X (i.e., the surface where the atomizing electrode is located) of the substance generator 5 faces the inside of the air duct 7. The installation window 14 is arranged on the pipe wall to install the substance generator 5, so that the installation and the disassembly of the substance generator 5 can be facilitated, and the maintenance and the wiring are simple.

As shown in fig. 2, a wind deflector 13 is formed near the wall of the air guide duct 7 above the mounting window 14 (i.e., in the Y-axis forward direction in the drawing), and the wind deflector 13 is formed in the air guide duct 7 in such a manner as to be integrally formed with the substance generator 5, that is, in such a manner that the wind deflector 13 extends from a portion of the substance generator 5 and is substantially parallel to the wall of the air guide duct 7 with a proper interval therebetween, and in such a manner that the wind deflector 13 substantially covers the substance generation surface X of the substance generator 5, when the substance generator 5 is mounted to the mounting window 14, so that the air flow blown into the air guide duct 7 by the fan 2 does not directly blow the substance generator 5, particularly does not directly blow the substance generation surface X. In addition, because the wind shield 13 is formed inside the air guide pipe 7 and covers the substance generation surface X with a proper interval therebetween, the active substances generated by the substance generator 5 can be carried and blown out uniformly along with the air flow in the air guide pipe 7 after being fully and freely diffused in the space formed by the proper interval, so as to be beneficial to the air purifying effect of the household appliance, and the blowing of the air flow to the substance generation surface X is avoided, thereby prolonging the service life of the substance generator 5.

Preferably, the upper end (i.e., positive Y-axis in fig. 2) of the wind shield 13 is located between the fan outlet 2a and the upper end of the mounting window 14, and the lower end (i.e., negative Y-axis in fig. 2) of the wind shield 13 is substantially flush with the lower end of the substance generation surface X. The wind shield 13 can isolate the substance generating surface X from the air flow blown from the fan air outlet 2a to the air outlet 1b, so that the substance generating surface X is not blown by the air flow, and the lower end of the wind shield 13 is sufficiently distant from the air outlet 1b to diffuse the active substance and blow out the active substance to the outside of the household appliance.

Of course, the lower end position of the wind deflector 13 is not limited to this, and may be longer or shorter than the substance generation surface X, as long as the substance generation surface X can be substantially isolated from the air flow blown from the fan outlet 2a to the outlet 1b, and the air flow is not directly blown to the substance generation surface X.

In the present embodiment, the air deflector 13 is described as extending from the portion of the object generator 5 and being substantially parallel to the wall of the air duct 7 with an appropriate interval therebetween, but the present invention is not limited thereto, and the air deflector 13 may be provided so as not to be parallel to the wall of the air duct 7 but so as to be inclined so as to extend gradually toward the center of the inside of the air duct 7 or so as to form an angle with the wall of the air duct 7. Are within the scope of the present invention.

In the present embodiment, the substance released from the substance generator 5 into the air through the substance generating surface X is a substance having an air purifying activity, and preferably, the substance is a hydroxyl radical. The hydroxyl radical is contacted with harmful substances (such as formaldehyde) in the air and abstracts hydrogen from the harmful substances, and simultaneously the hydroxyl radical is combined with the hydrogen to generate water, so that the content of the harmful substances in the air can be reduced, and the effect of purifying the air is achieved.

Preferably, the air guide pipe 7 adopts a straight pipe structure. Therefore, the device is convenient to install and occupies small space, so that the internal layout of the household appliance is compact, and the device is miniaturized.

In this embodiment, preferably, the household appliance may further include an air inlet chamber 9, wherein a housing air inlet 1a is provided at one end of the air inlet chamber 9, and a fan 2 is provided at the other end opening, and the air inlet chamber 9 is provided so that the fan 2 forms a negative pressure at the upstream side thereof, thereby more effectively driving air outside the housing 1 to flow into the household appliance.

In the present embodiment, by utilizing the feature that the cross-sectional area of the air inlet end of the air duct 7 is smaller than the area of the fan air outlet 2a, a part of the air flow blown out from the fan air outlet 2a can be split to the outside of the air duct 7 for heat dissipation without being particularly provided with other devices or mechanisms for splitting the air. With very simple structure and setting, realized dividing the wind after carrying out air purification and radiating dual effect respectively, and air purification and heat dissipation mutually noninterfere.

In the present embodiment, the cross-sectional area of the air inlet end of the air duct 7 is smaller than the area of the fan air outlet 2a, but the present invention is not limited thereto, and it is within the scope of the present invention to use the deviation of the air inlet end of the air duct 7 from the fan air outlet 2a, for example, the deviation of the position shift, to achieve the air separation effect.

Third embodiment

In the third embodiment of the present invention, a household electrical appliance is provided, wherein the air guiding pipe 12, the air guiding plate 4a disposed in the air guiding pipe 12, and the air vent 12a disposed on the side wall of the air guiding pipe 12 together form the air dividing mechanism 4, and compared with the embodiment of the first embodiment, the third embodiment provides another air dividing device, and parts not specifically described in the first embodiment include reference numerals and text descriptions, which are the same as those in the first embodiment, and are not repeated herein.

In the present embodiment, as shown in fig. 4, the household electric appliance in the third embodiment has, as the air dividing mechanism 4, an air guiding duct 12, an air guiding plate 4a provided in the air guiding duct 12, and a ventilation hole 12a provided on a side wall of the air guiding duct 12, as compared with the household electric appliance in the first embodiment. The air guiding tube 12 extends along the central axial direction, the substance generator 5 is disposed near the inner side of the tube wall of the air guiding tube 12, and the structure and the installation manner of the substance generator 5 may be the same as those of the second embodiment, which will not be described herein.

The air inlet end of the air guiding pipe 12 is correspondingly and matched and connected with the fan air outlet 2a of the fan 2, so that the air guiding pipe 12 can basically receive all the air flow from the fan 2, the air outlet end of the air guiding pipe 12 is communicated with the shell air outlet 1b, and part of the air flow which flows through the substance generator 5 and carries the active substances released by the substance generator 5 is basically discharged from the shell air outlet 1b, thereby preventing the air flow carrying the active substances from entering other parts of the household appliance without being guided, reducing the loss of the active substances in the air flow and improving the activity of air purification.

An air deflector 4a is formed inside the air introduction pipe 12 of the home appliance, and accordingly, a vent hole 12a communicating with the inside of the home appliance is formed on a side wall of the air introduction pipe 12. The air guide plate 4a is provided inside the air guide pipe 12 in correspondence with the ventilation hole 12a in the side wall of the air guide pipe 12, and the substance generator 5 in the present embodiment is provided near the pipe wall of the air guide pipe 12 on the side opposite to the ventilation hole 12a with the air guide plate 4a interposed therebetween. In a third embodiment of the present invention, the air flow direction inside the home appliance is: after being blown out from the fan air outlet 2a, the air flows into the air guiding pipe 12, passes through the air guiding plate 4a in the air guiding pipe 12, and then the air flow is divided into two parts, wherein one part of the air flows through the substance generator 5 covered by the air shielding plate 13, is mixed with the substances generated and diffused by the substance generator 5, and is blown out from the shell air outlet 1 b; the other part flows into the inside of the home appliance through the ventilation hole 12a formed on the side wall of the induced duct 12, and radiates heat inside the home appliance.

Preferably, the household appliance further comprises an electronic component chamber 3, wherein the electronic component chamber 3 is positioned on the outer side of the air guiding pipe 12 in a surrounding manner, and a circuit module 3a of the household appliance is accommodated therein. Thus, when the circuit module 3a drives the lighting module 8 to operate, heat generated by the lighting module 8 can be taken away together with the air flow flowing into the electronic component chamber 3 for heat dissipation. The air flow for heat dissipation formed by the air distributing mechanism 4 of the embodiment can form positive pressure flow on the heating part inside the household appliance, thereby realizing active heat dissipation and improving the heat dissipation effect. Meanwhile, the fan for heat dissipation is not required to be specially arranged, but one fan gives consideration to the formation of heat dissipation air flow and the blowing of air flow carrying substances, and the air flows do not interfere with each other, so that the structure is simplified, and the effects of heat dissipation and air purification are improved.

In this embodiment, the home appliance is provided with the air guiding pipe 12 which is connected with the fan air outlet 2a in a matching manner at the fan air outlet 2a of the fan 2, and the air blown out by the fan 2 can flow into the air guiding pipe 12 entirely or partially, and there is no requirement on the proportional relationship between the cross-sectional area of the air inlet end of the air guiding pipe 12 and the cross-sectional area of the fan air outlet 2a, and there is no rigid requirement on the matching correspondence between the air inlet end of the air guiding pipe 12 and the fan air outlet 2a, so the design layout is flexible and various.

Preferably, the air guiding pipe 12 is completely correspondingly and matingly connected with the fan air outlet 2a, that is, the air flow blown out from the fan air outlet 2a is completely guided into the air guiding pipe 12, so that the air guiding pipe can receive and utilize all the air flows from the fan, and the structure is compact, and the installation and maintenance are convenient.

Since the air guide plate 4a is provided in the air guide pipe 12, the air flowing into the air guide pipe 12 is divided into two parts by the air guide plate 4a, one part for heat dissipation and the other part for purification. Therefore, the wind blown by the fan 2 is utilized to the maximum extent, and the air is split by the air deflector 4a and then enters the inside of the household appliance along the radial direction of the air guiding pipe 12 through the vent hole 12a on the side wall of the air guiding pipe 12, so that the heat dissipation and circulation of the air are facilitated, and the heat dissipation effect on the heating element of the household appliance which is more outside in the radial direction is also good.

In this embodiment, the air guiding pipe 12 may also adopt a straight pipe structure, so that the installation is convenient, the occupied space is small, the internal layout of the household appliance is compact, and the miniaturization of the device is facilitated.

In addition, in fig. 4 of the present embodiment, the case where the cross-sectional area of the air intake end of the air intake duct 12 is larger than the cross-sectional area of the fan outlet 2a has been described, but as described above, the technical effect of the present invention can be similarly achieved also in the case where the cross-sectional area of the air intake end of the air intake duct 12 is equal to or smaller than the cross-sectional area of the fan outlet 2 a. When the cross-sectional area of the air inlet end of the air guiding pipe 12 is smaller than the fan air outlet 2a, in addition to the air separation of the air flow entering the air guiding pipe 12 in the present embodiment, the air flow portion that does not enter the air guiding pipe 12 may refer to the technical solution of the second embodiment, and the air flow portion may also be introduced into the interior of the household appliance to dissipate heat.

Fourth embodiment

The fourth embodiment of the present invention is a further improvement of the third embodiment, and parts not specifically described include reference numerals and text descriptions, which are the same as those of the third embodiment, and are not described here again.

The fourth embodiment is a major improvement over the third embodiment in that in the fourth embodiment of the present invention, as shown in fig. 5, the household appliance employs a curved air deflector 4a1 instead of the air deflector 4a in the third embodiment, and the curved air deflector 4a1 is not integrally formed with the substance generator 5 but is formed in a form disposed inside the tube wall of the air introduction tube 12. In the household appliance of the present embodiment, the curved wind deflector 13a is used instead of the wind deflector 13 of the third embodiment.

Because the curved wind deflector 13a can guide the airflow more smoothly, a large throttle or stagnation point is not easily generated, and at the same time, because the curved wind deflector 13a is provided inside the induced draft tube 12 independently of the substance generator 5, it is not required to be integrally formed with the substance generator 5, so that the management when the substance generator 5 is stored and assembled is easy, and the installation or storage is not difficult because of the curved surface portion.

The curved wind deflector 13a can better guide the air flow, that is, the curved wind deflector 4a1 can guide the air flow of the fan air outlet 2a into the vent hole 12a more smoothly and accurately through the arc structure, meanwhile, the curved wind deflector 4a1 can determine how much air flow from the fan 2 is guided into the vent hole 12a along one side of the arc plane according to the setting position and the curved curvature and length of the air flow, and how much air flow from the fan 2 is guided into the housing air outlet 1b along the other side of the arc plane. Meanwhile, the curved surface structure of the curved surface air deflector 4a1 can play roles of rectifying and effectively reducing airflow resistance, and turbulence is avoided.

The curved air deflector 4a1 and the curved air deflector 13a in the present embodiment may have curved surfaces along the airflow direction or curved surfaces transverse to the airflow direction, and the radians thereof may be the same or different, and are not particularly limited. In the third and fourth embodiments, the vent hole 12a is exemplified, but the present invention is not limited to the case of a through hole, and any of a vent grill, a vent window, a through hole, and a partial pipe wall large opening of the air introduction pipe 12 corresponding to the air guide plate 4a or the curved air guide plate 4a1 is within the scope of the present invention. And should not be taken as limiting the scope of the invention because the text describes vent holes.

Fifth embodiment

In a fifth embodiment of the present invention, there is provided a home appliance in which an annular heat dissipation passage 301 is formed around the air guide duct 7 or the air guide duct 12. The fifth embodiment is a further improvement of the second embodiment or the third embodiment, and parts not specifically described include reference numerals and text descriptions, which are the same as those of the second embodiment or the third embodiment, and are not described herein.

The main improvement of the fifth embodiment is that in the fifth embodiment of the present invention, as shown in fig. 6, the household electrical appliance further comprises an annular heat dissipation channel 301 disposed around the air guide pipe 7 or the air guide pipe 12 for receiving the air flow blown out to the outside of the air guide pipe 7 or the air guide pipe 12, wherein, preferably, the electronic component chamber 3 is disposed around the outside of the annular heat dissipation channel 301, wherein, the circuit module 8 of the household electrical appliance is accommodated, and a metal plate with excellent heat conduction performance such as a copper plate, an aluminum plate is preferably used for separation between the annular heat dissipation channel 301 and the electronic component chamber 3, or the outer side wall of the annular heat dissipation channel 301 also has the side wall of the electronic component chamber 3 and forms an integral structure with the electronic component chamber 3.

Fig. 7 is a schematic view of heat transfer and airflow direction of a household appliance according to a fifth embodiment of the present invention, and in fig. 7, arrows in the electronic component chamber 3 indicate the heat transfer direction, and arrows in the annular heat dissipation path 301 and the air guide duct 7 indicate the airflow direction. The air flow direction inside the home appliance in the fifth embodiment of the present invention is: the outer periphery of the cross section of the fan air outlet is opposite to the part with more cross sections of the air guide pipes 7, and the blown air flows into the annular heat dissipation channel 301 to take away the heat conducted from the electronic component chamber 3 adjacent to the annular heat dissipation channel 301.

In the present embodiment, the inner air guide duct 7 is separated from the outer annular heat dissipation channel 301 by the inner and outer double-layer tube structure, and a part of the air flow passing through the outer annular heat dissipation channel 301 exchanges heat with the inside of the electronic component chamber 3, so that the heat dissipation effect is achieved, and at the same time, external foreign matters (such as mosquitoes and dust) are effectively prevented from flowing into the electronic component chamber 3 to affect the performance and the service life of the circuit module 3 a.

In this embodiment, the annular heat dissipation channel 301 adopts a straight tube structure and is coaxially arranged with the air guide tube 7, so that the structure of the household appliance can be further compact, the installation is convenient, and in addition, the structure enables the extending direction of the air channel in the annular heat dissipation channel 301 to be consistent with the air flow direction in the air guide tube 7, and the air channels are isolated from each other, so that turbulence is not easy to form.

In the above description of the case of the air duct 7, in the case of the third embodiment or the fourth embodiment, in the case of providing the air duct 12, the annular heat dissipation passage may be provided on the outer side of the air duct 12, and a part of the air flow split through the air hole 12a may be introduced into the annular heat dissipation passage instead of directly into the electronic component chamber 3, thereby realizing the present embodiment.

Fig. 8 is a schematic structural view of a household appliance preferably having a heat radiating fin 301a in the fifth embodiment of the present invention, and fig. 9 is a schematic structural view of the heat radiating fin 301a in the fifth embodiment of the present invention. As can be seen from fig. 8 and 9, a plurality of heat dissipation fins 301a are formed in the annular heat dissipation channel 301 and uniformly distributed along the circumferential direction, and preferably, the heat dissipation fins 301a are arranged in a manner of extending along the direction of the air flow in the annular heat dissipation channel 301, so that the direction of extending the fins is prevented from being different from the direction of the air flow, and the flow resistance of the air flow is increased. In some embodiments, the heat dissipation fins 301a may be connected to both the air guide pipe 7 or the air guide pipe 12 and the outer Zhou Nabi of the annular heat dissipation channel, so as to increase the contact area between the heat dissipation fins 301a and the air flow in the annular heat dissipation channel and uniformly conduct heat, thereby increasing the heat dissipation effect of the annular heat dissipation channel 301. In other embodiments, the heat dissipating fins 301a may be spaced apart from the wall of the air guiding duct 7 or the air guiding duct 12 without contacting the wall of the air guiding duct 7 or the air guiding duct 12, so as to avoid the heat transferred by the heat dissipating fins 301a from affecting the substance generator 5 and the air flow inside the air guiding duct 7 or the air guiding duct 12. In addition, the heat dissipation fins 301a preferably connect the fan air outlet 2a at one end of the annular heat dissipation channel 301 with the substrate air outlet 6a (the portion with a plurality of openings at the inner periphery of the substrate 6) at the other end of the annular heat dissipation channel 301, so that the airflow direction can be better guided, turbulence can be avoided, and the heat dissipation effect can be further improved.

In this embodiment, the outer Zhou Nabi of the annular heat dissipation channel 301 is completely matched with the fan outlet 2a, in other words, the caliber of the fan outlet 2a is completely matched with the diameter of the outer peripheral inner wall of the annular heat dissipation channel 301. With this dimensional fitting relationship, the air blown out by the fan outlet 2a can be utilized to the maximum, and the structural matching is advantageous for assembly.

Therefore, according to the embodiment of the present invention, the household appliance splits a portion of the air flow for heat dissipation of the circuit module before the air flows through the substance generator 5, thereby avoiding loss caused by the fact that the substance-loaded air is discharged after being used for internal heat dissipation, and avoiding secondary pollution caused by dust and the like in the circuit module when the substance-loaded air is reused for heat dissipation, so that the purifying effect can be optimized. Specifically, in the embodiment of the present invention, two embodiments of the wind dividing mechanism are exemplified:

The wind dividing mechanism of one embodiment is an air guide pipe 7, so that the area of a fan air outlet 2a is larger than the area of the air inlet end of the air guide pipe 7, and air flow outside the air guide pipe 7 is used for heat dissipation, namely, the air inlet amount outside the air guide pipe 7 can effectively improve the heat dissipation effect while the purifying air amount of the household appliance is not influenced. The air dividing mechanism of the other embodiment is an air duct 12, and includes an air guide plate 4a provided in the air duct 12 and a vent hole 12a provided in a side wall of the air duct 12. The air flow for heat dissipation formed by the air dividing mechanism in the embodiment can form positive pressure flow on the heating part inside the household appliance, so that active heat dissipation is realized, and the heat dissipation effect is improved. Meanwhile, the fan for heat dissipation is not required to be specially arranged, but one fan gives consideration to the formation of heat dissipation air flow and the blowing of air flow carrying substances, and the air flows do not interfere with each other, so that the structure is simplified, and the effects of heat dissipation and air purification are improved.

Sixth embodiment

In the prior art, some household appliances integrated with an air duct system are designed such that air is sucked in through a housing air inlet located at one side of the power input part and is blown out through a housing air outlet located at one side of the lamp housing. When the household appliance is used, the electric power input part is usually installed towards or embedded into a ceiling, so that dust is easy to fall or deposit, and cleaning is difficult. If the air duct system of the household appliance is restarted after being closed for a long time, dust accumulated on one side of the power input part is blown out to a user or an indoor environment through the air duct, and user experience is affected.

Accordingly, in a sixth embodiment of the present invention, there is provided a home appliance, which can solve the above-described problems.

Fig. 10 is a schematic structural view of a home appliance according to a sixth embodiment of the present invention, as shown in fig. 10, the home appliance including: the electric power input part 15, the casing 1, the lighting module 8 and the lamp shade 101, wherein, offer casing air intake 1a and casing air outlet 1b on the casing, fan 2 sets up inside casing 1 for the drive air current flows from casing air intake 1a to casing air outlet 1b, and the light emitting area of lighting module 8 is towards this household electrical apparatus's lamp shade 101 (i.e. Y axle is negative in fig. 10), and, casing air intake 1a, casing air outlet 1b and lamp shade 101 all set up at this household electrical apparatus's homonymy and with light emitting area same orientation, and casing air intake 1a is located the edge of this lamp shade 101, and casing air outlet 1b is located the central authorities of this lamp shade 101.

In this embodiment, the air flow direction in the home appliance is: the air outside the housing 1 enters the interior of the housing 1 via a housing air inlet 1a provided at the edge of the household appliance lamp housing 101 in a direction of traveling from the lamp housing 101 side to the power input portion 15 side (Y-axis forward direction in fig. 10), is driven by the fan 2 to flow toward a housing air outlet 1b also located on the household appliance lamp housing 101 side (i.e., toward the same light emitting surface) and is then blown out from the housing air outlet 1b in a direction of traveling from the power input portion 15 side to the lamp housing 101 side (Y-axis reverse direction in fig. 10). Since the housing air intake port 1a and the housing air outlet port 1b are provided on the same side of the housing 1 and are oriented in the same direction as the light emitting surface, air will enter the housing air intake port 1a in the direction from the lamp house 101 side to the power input portion 15 side (Y-axis forward direction in fig. 10). Since the housing air intake 1a is generally directed toward the user, dust is not easily accumulated and is easily cleaned, the air intake manner is not easily introducing dust into the air duct, and thus the cleanliness of the blown air flow can be ensured.

Moreover, because the shell air inlet 1a is arranged at the edge of the lamp shade 101 of the household appliance, the shell air inlets 1a at a plurality of positions can be arranged in a mode of encircling the edge of the lamp shade 101 of the household appliance, and even the edge of the whole lamp shade 101 can be annularly arranged into the shell air inlet 1a, the air duct design freedom degree is high, the sectional area of the shell air inlet 1a can be ensured, the wind resistance is reduced, and the power model selection and the air duct design of the fan 2 are optimized.

Seventh embodiment

The seventh embodiment is a further improvement of the sixth embodiment, and the parts not specifically described include reference numerals and text descriptions, which are the same as those of the sixth embodiment, and are not described here again.

Fig. 11 is a schematic structural view of a household electrical appliance according to a seventh embodiment of the present invention, and the main improvement of the seventh embodiment with respect to the sixth embodiment is that, in the seventh embodiment of the present invention, as shown in fig. 11, the household electrical appliance further includes a circuit module 3a and an electronic component chamber 3 housing the circuit module 3a, and at least a part of a chamber wall 302 of the electronic component chamber 3 is configured as a part of an air duct (i.e., a flow passage through which an air flow indicated by an arrow in the figure passes) extending from the housing air inlet 1a to the housing air outlet 1 b. In the seventh embodiment of the present invention, according to the structural improvement of the seventh embodiment with respect to the sixth embodiment, after the air outside the casing 1 enters the casing from the casing air inlet 1a, the air duct formed by the chamber walls 302 of a part of the electronic component chamber 3 can dissipate heat conducted inside the electronic component chamber 3 through the part of the air duct. Because the shell air inlet 1a and the shell air outlet 1b are arranged on the same surface, the air duct can be bent and prolonged in the internal layout of the shell 1, and the characteristics can be utilized to further increase the contact area between the cooling air flow and the electronic part room 3, thereby improving the heat dissipation effect.

In the present embodiment, the electronic component chamber 3 is formed as a closed chamber, and since a part of the chamber wall 302 of the electronic component chamber 3 is configured as an air duct for heat dissipation, the electronic component chamber 3 is closed to prevent foreign matter from entering the electronic component chamber 3 while ensuring heat dissipation.

In the present embodiment, the portion of the electronic component chamber 3 constituting the chamber wall 302 of the air duct is made of a metal material. The metal material has good heat conduction, and can further improve the heat dissipation efficiency when the air passes through the air duct.

Fig. 12 is a schematic structural view of a lighting module according to a seventh embodiment of the present invention, and as seen in fig. 11 and 12, the lighting module 8 includes a ring-shaped substrate 801 and LED beads (i.e., light emitting units) 802 distributed on the surface of the ring-shaped substrate 801, preferably, the LED beads 802 are uniformly distributed on the ring-shaped substrate 801 to obtain a stable and uniform light source, and in addition, a portion of the ring-shaped substrate 801 extends to the inside of the air duct to the outside, so that heat dissipation can be performed by direct contact between the air flow in the air duct and the portion of the ring-shaped substrate 801.

In this embodiment, the household appliance is further provided with the substance generator 5 for releasing hydroxyl radicals into the airflow, so that the household appliance has both functions of lighting and purifying air, and the substance generator 5 is preferably disposed in the air duct, so that the structure can be compact.

In this embodiment, the household appliance further includes an air guide duct 7, the air guide duct 7 is communicated with the air duct or forms part of the air duct, the substance generator 5 is disposed near the inner side of the pipe wall, the fan 2 is disposed in a manner of communicating with the air duct in a matching manner with the air guide duct 7, and the electronic component chamber 3 is disposed at the periphery of the air guide duct 7.

The structure and the installation manner of the substance generator 5 are preferably the same as those of the substance generator in the second embodiment, and will not be described herein. In addition, the shell air inlet 1a of the household appliance is also filled with a filter screen structure (not shown), dust in the air can be filtered out by the filter screen structure, the cleanliness of the sucked air is further guaranteed, and the filter screen structure is more convenient to clean and replace for a user due to the fact that the shell air inlet 1a is arranged on one side of the lampshade facing the user.

Eighth embodiment

The eighth embodiment is a further modification of the seventh embodiment, and the parts not specifically described include reference numerals and text descriptions, which are the same as those of the seventh embodiment, and are not described here again.

Fig. 13 is a schematic structural view (sectional view) of a household appliance according to an eighth embodiment of the present invention, which is a major improvement over the seventh embodiment in that, in the eighth embodiment of the present invention, a circuit module 3a of the household appliance includes a circuit board (not shown) having a heat radiation end 3b protruding outward from the electronic component chamber 3 and into the air duct interior, and at least a part of the heat generating elements 3a1 in the circuit module 3a may be disposed at the heat radiation end 3b. The circuit board is partially extended out of the electronic component chamber 3 and a part of the heating element 3a1 is arranged outside the air duct, so that air in the air duct is in direct contact with the part of the circuit board and the heating element 3a1, and the heat dissipation effect of the air on the circuit module 3a is enhanced.

The heating element 3a1 refers to a circuit element that needs to withstand a high voltage or a high current during operation of a power supply, and a power device in a high-frequency operation state in a conversion circuit, and specifically, the heating element refers to one or a combination of a plurality of inductors, bridge stacks, fuses, switching transistors, resistors, power transistors, and integrated chips.

In fig. 13, the heat generating element 3a1 is illustrated as being located entirely outside the electronic component chamber 3, but the present invention is not limited to this, and the heat generating element 3a1 may be located entirely inside the electronic component chamber 3 or across the inside and outside of the electronic component chamber, and the heat dissipation effect may be achieved by directly contacting the heat dissipation end 3b of the circuit board or part of the heat generating element 3a1 with the heat dissipation air.

Ninth embodiment

In a ninth embodiment of the present invention, a household electrical appliance is provided, in which a heat dissipation hole 302a is formed in a chamber wall 302 of an electronic component chamber 3 forming an air duct, the ninth embodiment is based on the sixth embodiment, and more specifically describes an embodiment of the household electrical appliance, and parts not specifically described include reference numerals and text descriptions, which are the same as those of the sixth embodiment, and are not repeated herein.

Fig. 14 is a schematic structural view (cross-sectional view) of a household electrical appliance according to a ninth embodiment of the present invention, and the ninth embodiment is different from the sixth embodiment in that, in the ninth embodiment of the present invention, as shown in fig. 14, a heat radiation hole 302a is formed in a chamber wall 302 portion of an electronic component chamber 3 constituting an air duct of the household electrical appliance.

When the circuit module 3a in the electronic component chamber 3 works, the heating element 3a1 in the circuit module 3a generates a large amount of heat to expand the air in the electronic component chamber 3, and the hot air flows out of the electronic component chamber 3 through the heat dissipation holes 302a formed on the chamber wall 302 and can be taken away by the air flow in the air duct, so as to realize active heat dissipation, and further improve the heat dissipation effect.

Among them, the chamber wall 302 provided with the heat radiation holes 302a is preferably provided as an upper (Y-axis forward direction of fig. 14) chamber wall of the electronic component chamber 3. Since the hot air is light, the flow direction of the hot air is upward, so that the hot air can smoothly flow out of the heat dissipation holes 302a formed in the upper chamber wall, and since the air flow is upward, the effect of suppressing the external dust from falling into the electronic component chamber 3 can be achieved while the heat is dissipated.

Tenth embodiment

In a tenth embodiment of the present invention, a household appliance is provided, which combines a lower air intake structure and a wind dividing mechanism 4 (in this embodiment, the wind deflector 4a, the wind guiding pipe 12 and the ventilation hole 12a together form the wind dividing mechanism), the tenth embodiment is a further improvement of the sixth embodiment, and parts not specifically described include reference numerals and text descriptions, which are the same as those of the sixth embodiment, and are not repeated herein.

Fig. 15 is a schematic structural view (cross-sectional view) of a household appliance according to a tenth embodiment of the present invention, which is a major improvement over the sixth embodiment in that, in the tenth embodiment of the present invention, the household appliance further includes a wind-dividing mechanism 4 composed of a wind guiding duct 12, a wind guiding plate 4a provided inside the wind guiding duct 12, and a ventilation hole 12a provided on a side wall of the wind guiding duct 12. Wherein, the induced duct 12 is communicated with the air duct or forms part of the air duct, and a substance generator 5 is arranged near the inner side of the pipe wall, and the electronic component chamber 3 is arranged at the periphery of the induced duct 12. In the present embodiment, taking the combined structure of the third embodiment as an example, the air dividing mechanism 4 is provided with an air guide plate 4a inside the air guide duct 12, and a vent hole 12a communicating with the electronic component chamber 3 is provided in a side wall of the air guide duct 12, and the air guide plate 4a guides part of the air flow inside the air guide duct 12 to the vent hole 12a.

The air flow path in the household appliance is formed such that, as shown in fig. 15, after the air enters the household appliance through the housing air inlet 1a arranged at one side of the lamp housing, the air flows into the air guiding pipe 12 after flowing through a part of air duct formed by the upper chamber wall of the electronic component chamber 3, and is divided into two parts by the air guiding plate 4a in the air guiding pipe 12, wherein one part flows into the electronic component chamber 3 through the air vent 12a on the side wall of the air guiding pipe 12 to perform secondary heat dissipation on the circuit module 3a, and after the other part flows through the substance generator 5, the air carrying the substances released by the substance generator 5 is blown out by the housing air outlet 1b under the driving of the fan 2.

In the tenth embodiment of the present invention, by providing the air deflector 4a in the air guiding duct 12, a part of the air flowing into the air guiding duct 12 is separated and flows into the electronic component room 3 to secondarily dissipate the heat of the circuit module, so that the heat dissipation effect is further enhanced, and the heat dissipation mechanism of the household appliance can meet the heat dissipation requirement of the circuit module 3a with larger power.

In the present embodiment, the heat generating element 3a1 of the circuit module 3a is preferably arranged at a position opposite and adjacent to the vent hole 12 a. The heating element 3a1 with larger heat dissipation requirement in the circuit module 3a is arranged near the vent hole 12a of the air inflow electronic component chamber 3, so that the main heating source of the circuit module 3a can be concentrated for heat dissipation, the heat dissipation efficiency is improved, and the heat dissipation effect is also ensured.

In addition, the outer periphery of the air introduction pipe 12 and the inner periphery of the electronic component chamber 3 partially overlap each other, so that the air introduction pipe 12 and the electronic component chamber 3 can communicate at the partially overlapping portions. Therefore, the air flowing into the electronic component chamber 3 can be blown out from the air outlet 1b of the shell through the communication part after heat dissipation, and the wind resistance of the household appliance is reduced.

By the above mode, since the dust content in the air flow is low by adopting the mode that the shell air inlet 1a is arranged at one side of the lampshade 101, even if the air distribution mode of guiding the air flow into the electronic component chamber 3 is adopted, the dust is not introduced into the electronic component chamber 3, so that the working performance and the service life of the circuit module 3a in the electronic component chamber 3 are ensured.

Therefore, according to the embodiment of the invention, one side of the lampshade (namely, the light emitting surface faces one side) is usually towards a user, the air inlet is arranged at the edge of the lampshade, dust is not easy to accumulate and is easy to clean, and therefore, the air inlet mode is not easy to introduce dust into the air duct, so that the cleanliness of blown air flow can be ensured.

Eleventh embodiment

Considering that the home appliances according to the first to tenth embodiments each have the duct structure extending from the housing air inlet 1a to the housing air outlet 1b, when the lamp cover 101 structure is provided for the home appliance, there is a problem in that:

On the one hand, when the lighting module 8 composed of a plurality of light emitting units 802 (for example, LED beads in the form of patches) is disposed in the housing 1, the cover surface of the lamp shade 101 needs to be spaced more than a certain distance from the light emitting surface formed by the plurality of light emitting units 802, otherwise, each light emitting unit 802 projects a spot with a brighter corresponding position and a darker surrounding position on the cover surface of the lamp shade 101, and the soft light characteristic of the lamp shade 101 is insufficient to compensate the above problem, resulting in generation of "granular feel" and affecting the beauty.

On the other hand, the end face of the household appliance facing the lamp housing 101 needs to leave an extra space for the air flowing out of the inside of the household appliance, i.e., an opening is formed at the end face facing the lamp housing 101. In order to ensure the air outlet effect, the opening 10 preferably extends to correspond to the air outlet end of the air guiding pipe 12 or the air guiding pipe 7. If the cover surface of the lamp cover 101 is a plane, the air duct directly extends to be connected with the cover surface of the lamp cover 101, and the lighting of the opening 10 may be affected due to the air guiding pipe 12 or the air guiding pipe 7, and when the opening 10 cannot be fully lighted, a shadow may be formed visually on the part of the opening 10 of the household appliance, so that the use feeling is affected.

In an eleventh embodiment of the present invention, there is provided a home appliance capable of solving the above problems.

Fig. 16 is a schematic structural view of a lamp housing of a home appliance according to an eleventh embodiment of the present invention, and fig. 17 is a schematic structural view of a lighting module 8 according to the eleventh embodiment, and the home appliance includes, as seen in conjunction with fig. 16 and 17: the power input part 15, the shell 1 and the lighting module 8 are sequentially arranged along the axial direction, and the power input part provides power input for the lighting module 8 and other electronic components. The lighting module 8 includes a substrate (in this embodiment, an annular substrate) 801 and a plurality of light emitting units 802 distributed on the same side surface (lower side surface in the drawing) of the substrate (in this embodiment, the side surface provided with the light emitting units is the light emitting surface of the lighting module 8, the light emitting surface is located on the same side of the housing 1 of the household appliance as the opening 10 of the household appliance and faces the lamp cover 101, the lamp cover 101 is made of a light-transmitting (for example, a milky acrylic resin or the like) material, the lamp cover 101 has a main light-transmitting portion 101a and a bent light-transmitting portion 101b, the main light-transmitting portion 101a corresponds to the lighting module 8 and is arranged at intervals, the bent light-transmitting portion 101b is formed by bending the main light-transmitting portion 101a, and the lamp cover 101 surrounds the opening 10 at a portion corresponding to the bent light-transmitting portion 101b, in other words, the opening 10 in this embodiment is a hollow portion formed by surrounding the bent light-transmitting portion 101b and also has the housing air outlet 1 b.

In the eleventh embodiment of the present invention, the lamp housing 101 corresponds to the lighting module 8, and the main body light transmitting portion 101a of the lamp housing 101 is disposed at a substantially parallel interval with the light emitting surface of the lighting module 8, and since the interval distance therebetween can be achieved by changing the height of the folded light transmitting portion 101b, it is convenient to adjust the distance between the lamp housing 101 and the lighting module 8 to a proper distance to eliminate the "graininess" formed on the lamp housing by the light emitting unit. Also, because of the soft light characteristic of the lamp cover 101 itself and the presence of the folded light transmitting portion 101b as a part of the lamp cover 101, the folded light transmitting portion 101b can scatter or reflect light from the lighting module 8, illuminate the opening 10 formed around by the folded light transmitting portion 101b, and thereby weaken or even eliminate shadows at the opening 10.

Twelfth embodiment

The twelfth embodiment is a further improvement of the eleventh embodiment, and parts not specifically described include reference numerals and text descriptions, which are the same as those of the eleventh embodiment, and are not described here again.

Fig. 18 is a schematic structural view of a lamp housing 101 of a household appliance according to a twelfth embodiment of the present invention, and fig. 19 is a schematic structural view of a joint between the lamp housing 101, a housing air outlet 1b, and a duct wall of an air duct (in this embodiment, an air duct 7). As can be seen from fig. 18 and 19, the household appliance further comprises an air guide pipe 7 arranged corresponding to the opening 10, and the folded light-transmitting part 101b is provided with an inner peripheral wall 101c extending to the air outlet end of the air guide pipe 7, wherein the air outlet end of the air guide pipe 7 is connected with the inner peripheral wall 101c in a matching way.

The inner wall of the bent light-transmitting part 101b extends to the air outlet end of the air guide pipe 7 and is connected with the air guide pipe 7 in a matching way, so that when air is blown out from the opening part 10, the air is prevented from entering the lamp shade 101 from the joint of the air guide pipe 7 and the bent light-transmitting part 101b, the sealing performance of the lamp shade 101 is improved, and foreign matters are prevented from entering.

In this embodiment, the air outlet end of the air guide pipe 7 is preferably flush with the light emitting surface or is located on both sides of the light emitting surface with the lamp housing 101, so that the air guide pipe 7 can be prevented from blocking the light from the lighting module 8 as much as possible, so that the bent light transmitting portion 101b can fully obtain the irradiation of the lighting module 8, thereby illuminating the opening 10, and further reducing or even eliminating the shadow at the opening 10. It should be noted that the term "flush" as defined herein is not strictly parallel in a mathematical sense, but is merely substantially flush, as long as the effect of illuminating the opening 10 is achieved. Even if the air guide pipe 7 is led out to one side of the light emitting surface, the effect of illuminating the opening 10 is achieved under the condition of comprehensive factors, which is in accordance with the spirit of the invention and belongs to the technical scheme to be protected.

It should be noted that although in the embodiment of the present invention, only the case where the air outlet end 7b of the air guide duct 7 is flush with the light emitting surface or is located on the side of the light emitting surface facing the power input portion has been specifically described, it will be understood by those skilled in the art that when the air outlet end 7b of the air guide duct 7 is located on the side of the light emitting surface and is out of the predetermined range, the illumination light may illuminate the opening 10 to eliminate shadows by adjusting the ratio of the opening diameter of the opening 10 to the bending depth of the bending light transmitting portion 101b, the positional layout of the light emitting unit 802, the positional relationship of the main body light transmitting portion 101a and the light emitting surface, the bending degree of the bending light transmitting portion 101b, and the like. Therefore, the position of the air outlet end 7b of the air duct 7 and the light emitting surface is defined based on whether the entire opening 10 can be illuminated by the illumination light of the light emitting surface, so that the household appliance is not shaded by the air duct 7 connected to the opening 10. The air outlet end of the air guide pipe 7 is led out to one side of the light emitting surface as long as the effect of illuminating the opening 10 is achieved, which is in accordance with the spirit of the present invention and belongs to the technical proposal to be protected.

In the present embodiment, the folded light transmitting portion 101b is provided obliquely with respect to the air guide duct 7. Preferably, an angle formed between a tangential direction from a center point of the opening 10 to an inner edge of the folded light transmitting portion 101b and an axial direction of the opening 10 is 30 ° to 60 °. The inclined bent light-transmitting part 101b can guide the airflow at the opening part 10, so that the caliber of the airflow cross section is enlarged, the indoor range which can be covered by the purified airflow is improved, and the direct blowing of a small range is avoided.

The light-transmitting portion 101b is bent in a direction extending from the main body light-transmitting portion 101a to the opening portion 10, and has a curved surface structure in which the diameter of the opening portion 10 gradually decreases. On the one hand, the cambered surface structure gradually contracts to form a streamline cambered surface structure, and the surface transition is smooth, so that the guiding of the air flow flowing out of the opening part 10 is facilitated, and meanwhile, the light distribution corresponding to the positions of the opening part 10 can be more uniform.

In this embodiment, the maximum distance between the globe 101 and the light emitting surface is preferably 2 to 5 times the average distance between the adjacent light emitting units 802 on the substrate 801. This arrangement allows a proper distance between the lamp housing 101 and the lighting module 8, and effectively eliminates "graininess".

The maximum distance d from the outer surface of the main body transparent part 101a of the lampshade 101 to the plane of the air outlet end of the air guide pipe 7 is set to be 0.5-1.5 times of the diameter of the air guide pipe 7. The distance from the outer surface of the main body light-transmitting portion 101a of the lamp housing to the plane of the air outlet end of the air guide duct 7 is too long with respect to the diameter of the air guide duct 7, or the distance from the outer surface of the main body light-transmitting portion 101a of the lamp housing 101 to the plane of the air outlet end of the air guide duct 7 is too small with respect to the diameter of the air guide duct 7, which tends to form shadows in the opening 10. Therefore, by setting a suitable distance from the outer surface of the main body light-transmitting portion 101a of the lamp cover 101 to the plane where the air outlet end of the air guide duct 7 is located, that is, setting a suitable proportional relationship between the depth of the opening portion 10 and the diameter of the air guide duct 7, the opening portion 10 can be basically illuminated by the lighting module 8, and shadows occurring at the opening portion 10 can be further effectively eliminated.

In this embodiment, a substance generator 5 is arranged in the air guide duct 7 of the household appliance, and the substance generator 5 can release substances, preferably hydroxyl radicals, into the air to purify the air.

Based on a further improvement of the first to eleventh embodiments, the household appliance may further include an opening and closing mechanism for controlling the opening degree of the housing air inlet 1a or the housing air outlet 1 b.

In some embodiments, an opening and closing mechanism may be provided at the central housing air outlet 1b, i.e., at the opening 10, to close the housing air outlet 1b when air circulation is not required, so as to further prevent dust from entering the interior of the housing 1, preferably, the housing air outlet 1b is opened when the fan 2 is operated, and the housing air outlet 1b is closed when the fan 2 is not operated, so that both the air outlet of the fan 2 and the dustproof performance of the household appliance may be achieved.

In some embodiments, the opening and closing mechanism that controls the opening and closing of the housing air inlet 1a or the housing air outlet 1b is a stepping motor, for example, a shutter 11 is provided at the opening 10 and the shutter 11 is connected to a shaft of the stepping motor, and when the fan 2 is energized, the stepping motor is in an ON state, so that the shutter 11 rotates to open the opening 10; when the fan 2 is powered OFF, the stepping motor is in an OFF state, and the shutter 11 is retracted to the original position, so that the opening 10 is closed.

In other embodiments, the opening and closing mechanism controlling the opening and closing of the housing air inlet 1a or the housing air outlet 1b may be an electromagnetic coil, a magnetic clip is disposed on the shaft of the baffle 11, when the fan 2 is energized, the electromagnetic coil is also energized, so that the magnetic clip on the baffle 11 is attracted by the electromagnetic coil to displace, driving the baffle 11 to rotate, and opening 10 is opened; when the fan 2 is powered off, the electromagnetic coil is also powered off, so that the electromagnetic coil loses magnetic attraction to the magnetic clip, the baffle 11 is retracted to the original position, and the opening 10 is closed.

Furthermore, in some embodiments of the invention, the substance generator 5 has a baffle covering its substance generating face (not shown) to avoid the gas flow from directly blowing against the substance generating face. The substance generator 5 includes, for example, a high-voltage generation circuit (not shown) that generates negative ions (nanoe (registered trademark)) surrounded by nano-sized (for example, about 5 to 20nm in diameter) fine water particles by applying a high voltage to moisture in air condensed by the needle-like discharge electrode.

Nanoe can exist in the air for a long period of time (about 6 times the lifetime of negative ions) compared with the case where negative ions exist alone. Also, nanoe is very small in nano-size, so that it can uniformly spread throughout the room and float for a long time. As is known, nanoe has a high activity and can act on an odor component and decompose into a odorless component. Therefore, by nanoe diffusing into the room, an effect of a) deodorizing an odor (adhering odor) adhering to the floor or wall surface of the room, b) inactivating allergens, viruses, or the like floating or adhering to the room, and c) sterilizing fungi, bacteria, or the like floating or adhering to the room can be obtained.

Therefore, according to the embodiment of the present invention, the effect of diffusing nanoe into the room to perform air purification can be achieved while eliminating the feeling of particles on the surface of the lamp cover 101, and the unnecessary shadow is not generated by the arrangement of the substance generator 5 generating nanoe and the air guide duct 7, thereby affecting the beauty.

Thus far, the technical solution of the present invention has been described in connection with the accompanying drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

In particular, although the name of the present invention is "household electric appliance", the term "household" is not limited to the use place of the protection subject of the present invention, and the term "household electric appliance" of the present invention may be used in various other public or private indoor places besides home, such as offices, conference rooms, classrooms, libraries, indoor entertainment places, supermarkets, etc., and the use place does not limit the protection scope of the present invention.

Claims

1. A household appliance, comprising:

The power input part, the shell, the lighting module and the lampshade are sequentially arranged;

the shell is provided with a shell air inlet and a shell air outlet;

The fan is arranged in the shell and used for driving air flow to flow from the shell air inlet to the shell air outlet;

The light emitting surface of the lighting module faces the lampshade,

It is characterized in that the shell air inlet and the shell air outlet are arranged on the same side of the shell and face the same direction with the luminous surface, the shell air inlet is positioned at the edge of the lampshade, the shell air outlet is positioned at the center of the lampshade,

The household appliance further comprises

The lighting module is driven by the circuit module to emit light;

An electronic component chamber for accommodating the circuit module, wherein an upper chamber wall of the electronic component chamber is arranged at intervals with the inner wall of the shell, and a part of an air channel extending from the shell air inlet to the shell air outlet is formed between the upper chamber wall of the electronic component chamber and the inner wall of the shell;

a substance generator for releasing hydroxyl radicals into the air duct,

The electronic part chamber is airtight, or a radiating hole is formed in the wall of the electronic part chamber forming the air duct.

2. The home appliance according to claim 1, wherein the chamber wall provided with the heat radiation holes is an upper chamber wall of the electronic component chamber.

3. The household appliance according to claim 1 or 2, wherein the wall portion of the electronic component chamber constituting the air duct is made of a metal material.

4. A household appliance as in claim 3 wherein said circuit module comprises a circuit board having a heat dissipating end extending outwardly from said electronics compartment and into said air duct interior, at least a portion of the heat generating components of said circuit module being disposed at said heat dissipating end.

5. The household appliance according to claim 1, wherein the fan is closely disposed in correspondence with the housing air outlet.

6. The home appliance of claim 1, wherein the lighting module comprises a ring-shaped base plate and a plurality of light emitting units distributed on a surface of the ring-shaped base plate, a portion of the ring-shaped base plate extends to an outside inside of the air duct, thereby radiating heat of the ring-shaped base plate by using an air flow.

7. The home appliance of claim 1, wherein the home appliance further comprises

The air guide pipe is communicated with the air duct or forms part of the air duct, the substance generator is arranged near the inner side of the pipe wall of the air duct, the fan is matched with the air guide pipe in a mode of being communicated with the air duct, and the electronic part room is arranged on the periphery of the air guide pipe.

8. The home appliance of claim 7, wherein the home appliance further comprises

The air guiding pipe is communicated with the air duct or forms part of the air duct;

the air deflector is arranged inside the air inducing pipe;

the ventilation hole is arranged on the side wall of the air guiding pipe and communicated with the electronic component chamber, and guides partial air flow in the air guiding pipe to the electronic component chamber,

The substance generator is arranged near the inner side of the pipe wall of the air guiding pipe and is separated from the ventilation hole by the air guiding plate.

9. The household appliance according to claim 8, wherein a mounting window is opened on a wall of the air guide duct or the air guide duct, and the substance generating surface of the substance generator is mounted at the mounting window in a form of facing the inside of the air guide duct or the air guide duct.

10. The household appliance according to claim 9, wherein a wind deflector is provided near a wall of the air guide duct or the air guiding duct on a side of the mounting window close to the fan, the wind deflector covering or shielding a substance generating surface of the substance generator so as not to be directly purged by an air flow.

11. The household appliance according to claim 10, wherein the wind deflector is formed in a form integral with the substance generator or in a form disposed inside a wall of the air guide duct or air introduction duct.

12. The household appliance of claim 11, wherein the heating element of the circuit module is disposed opposite and adjacent to the vent.

13. The home appliance according to claim 8, wherein an outer periphery of the air guide duct or the air guide duct and an inner periphery of the electronic component chamber are partially overlapped with each other, and the air guide duct or the air guide duct is communicated with the electronic component chamber at the partially overlapped portion.

14. The household appliance of claim 4 or 12, wherein the heating element is one or more of an inductor, a bridge stack, a fuse, a switch tube, a resistor, a power triode, and an integrated chip.

15. The household appliance of claim 1, further comprising a screen disposed over the housing air inlet.

16. The household appliance according to claim 1 or 2, further comprising an opening and closing mechanism for controlling an opening degree of the housing air inlet or the housing air outlet.

17. The household appliance of claim 16, wherein the household appliance,

The opening and closing mechanism opens, closes or adjusts the housing air inlet or the housing air outlet in response to operation of the fan.