CN213777393U

CN213777393U - Lighting device

Info

Publication number: CN213777393U
Application number: CN202022395747.5U
Authority: CN
Inventors: 徐敏敏
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: 2021-07-23
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to a lighting device, this lighting device includes: the shell comprises a light-transmitting lampshade which covers the illumination module, and the lampshade surrounds to form an opening part; the light-transmitting lamp shade has: the lighting module includes a main body light transmission portion provided at an interval corresponding to the lighting module, and a bent light transmission portion formed by bending and extending the main body light transmission portion and extending toward the opening. The lighting device can solve the problems of granular sensation on the lamp shade and shadow at the opening part.

Description

Lighting device

Technical Field

The utility model relates to a domestic appliance field, concretely relates to have illumination and air purification's lighting device concurrently.

Background

With the gradual improvement of the living standard of people and the gradual popularization of smart homes, the market increasingly demands household appliances which integrate more functions or cooperate with each other more frequently.

Interior design personnel need to consider the problem of overall coverage of indoor space and illumination uniformity when laying out household appliances of the illumination class. This layout feature is particularly suitable for integrating other functions of a specific type, for example air purification functions.

Some household appliances in the related art integrate lighting and air purification functions, and purify indoor air by blowing ions or particles having an air purification function out of an opening portion of the household appliance. A plurality of household appliances of this type are rationally distributed in the indoor space, can satisfy illumination and air purification's coverage comprehensiveness and homogeneity simultaneously.

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

Firstly, how to solve the problem of the loss of particles or ions with air purification activity.

Due to the increase in the degree of integration of the device, heat dissipation of the heat generating element in the lighting module or the circuit module may become a problem. Therefore, the chinese patent CN209569698U discloses a heat dissipation mechanism of an integrated machine of illumination and air purification. The heat dissipation mechanism divides the airflow which has passed through the substance generator into two paths, wherein one path is blown out to the side after passing through the heating element, and the other path is blown out to the user. The air flow blown out to the side also carries particles or ions with air purification activity, but the particles or ions cannot reach the target area of the household appliance facing to the user and are lost.

Secondly, how to solve the problem that a large amount of accumulated dust is blown out when the dust-collecting device is reused after being unused for a long time.

In the prior art, some household appliances with integrated air duct systems have air ducts designed to suck air through a housing air inlet located on one side of a power input portion and blow out the air through a housing air outlet located on one side of a lamp cover. When the household appliance is used, the power input part is usually installed towards or embedded into a ceiling, so that dust is easy to fall or accumulate, and the household appliance is difficult to clean. If the air duct system of the household appliance is turned on again after being closed for a long time, dust accumulated on one side of the power input part can be blown out towards the lampshade through the air duct and blown towards a user or an indoor environment, so that user experience is influenced.

And thirdly, how to solve the problems of 'granular feeling' on the lamp shade and 'shadow' at the opening part.

Specifically, for an illumination module employing a plurality of light emitting units (for example, patch-type LED beads), the cover surface of the lampshade needs to be spaced from the light emitting surface formed by the plurality of light emitting units by a certain distance, otherwise, each light emitting unit projects a spot with a bright corresponding position and a dark surrounding position on the cover surface of the lampshade, and the soft light property of the lampshade is not enough to compensate or cover the spot, thereby causing the generation of "granular feeling".

In addition, the side of the household appliance facing the lamp housing needs to leave extra space for the opening, and the opening 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 lampshade is a plane, the air duct directly extends to be connected with the cover surface of the lampshade, the illumination of the opening part can be influenced, and if the opening part cannot be sufficiently illuminated, the part of the opening part of the household appliance can form shadows visually, so that the use feeling is influenced.

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

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lighting device can compromise and solve the problem of "graininess" and opening department "shadow" on the lampshade.

In the technical solution of the utility model, this lighting device includes: the lighting device comprises a power input part, a lighting module, a shell and a lampshade which are sequentially arranged along the axial direction of the lighting module, wherein the lighting module comprises a substrate (annular substrate) and a plurality of light-emitting units distributed on the light-emitting surface of the substrate; the lampshade is covered on one side of the light-emitting unit of the lighting module, and the lampshade surrounds to form an opening part; and the lamp shade has: the lighting module includes a main body light transmission portion provided at an interval corresponding to the lighting module, and a bent light transmission portion formed by bending the main body light transmission portion and extending toward the opening portion.

It should be noted that. In the technical solution of the present invention, as an exemplary example, a case where the substrate in the lighting module is a ring-shaped substrate is described, but in the embodiment, the substrate is used as the ring-shaped substrate only for convenience of description, and is not limited to the shape of the substrate of the lighting module, and substrates of different shapes may be used to carry the light emitting unit.

According to the technical scheme, the lampshade and the lighting module are arranged in a corresponding and spaced mode, and the spacing distance between the lampshade and the lighting module can be achieved by changing the height of the bent light-transmitting part, so that the distance between the lampshade and the lighting module can be conveniently adjusted to an appropriate distance, and the 'granular feeling' formed on the lampshade by the light-emitting unit is eliminated. Furthermore, due to the soft light property of the lampshade and the existence of the bent light-transmitting part as a part of the lampshade, the bent light-transmitting part can scatter or reflect the light rays from the illumination module and illuminate the inside of the opening part, thereby weakening or even eliminating the shadow at the opening part.

The utility model discloses an among the preferred technical scheme, lighting device still includes and corresponds and extend to the guide duct of this opening with the opening, bends the printing opacity portion and has the internal perisporium that extends to the guide duct to, the guide duct cup joints with the internal perisporium matching. The air guide pipe is arranged, so that air can flow in a passage defined by the air guide pipe, and meanwhile, the air is prevented from entering the lampshade from the joint of the air guide pipe and the bent light-transmitting part when the air is blown out or blown in from the opening part, the sealing performance of the lampshade is improved, and foreign matters are prevented from entering the lampshade.

Preferably, the air outlet end of the air guide pipe is flush with the light emitting surface or is positioned on one side of the light emitting surface facing the power input part. When the air outlet end of the air guide pipe is flush with the light emitting surface or is positioned on one side of the light emitting surface, which faces the power input part, the air guide pipe can be prevented from shielding light rays from the illumination module as much as possible, so that the bent light transmission part can be fully irradiated by the illumination module, the opening part is illuminated, shadows at the opening part are further reduced or even eliminated, and the shadows at the lampshade due to the air guide pipe cannot be formed. It should be noted that, in the technical solution of the present invention, the air outlet end of the air guiding pipe may also be located in the specified range of the light emitting surface toward the lampshade, and the lighting light may illuminate the opening portion to eliminate the shadow by adjusting the ratio of the diameter of the air guiding pipe to the bending depth of the bent light transmitting portion. Therefore, the position of the opening and the light-emitting surface is limited based on whether the illumination light from the light-emitting surface can illuminate the whole opening, so that the lighting device does not generate shadow due to the existence of the air guide pipe positioned in the opening.

In the preferred technical solution of the present invention, the light-transmitting portion is inclined with respect to the air duct. Wherein, preferably, the included angle formed between the tangential direction from the central point of the opening part to the outer surface of the bent light-transmitting part and the axial direction of the opening part is 30-60 degrees. The inclined bent light transmission part can play a role in guiding the airflow at the opening part, so that the caliber of the cross section of the airflow is enlarged, the indoor range which can be covered by the purified airflow is improved, and the direct blowing in a small range is avoided.

Preferably, the light-transmitting portion is bent in a direction extending from the light-transmitting portion of the main body toward the opening portion, and the aperture of the opening portion is gradually narrowed by the bent light-transmitting portion. This cambered surface structure on the one hand shrinks gradually and is the cambered surface structure of streamline, and its surface transition is smooth more to be favorable to the direction of the air current that flows from the opening, simultaneously, can also make the light distribution that is corresponding to each department of opening more even.

Preferably, the maximum distance between the lampshade and the light-emitting surface is 2-5 times of the average distance between two adjacent light-emitting units on the substrate. The lampshade and the lighting module are spaced properly, and granular sensation can be effectively eliminated.

Preferably, the maximum distance from the outer surface of the light transmission part of the main body of the lamp cover to the plane where the air outlet end of the air guide pipe is located is 0.5-1.5 times of the diameter of the air guide pipe. When the proportional relationship is too large, that is, the distance from the outer surface of the main body light transmission part of the lampshade to the plane where the air outlet end of the air guide pipe is located is too long relative to the diameter of the air guide pipe, or when the proportional relationship is too small, that is, the distance from the outer surface of the main body light transmission part of the lampshade to the plane where the air outlet end of the air guide pipe is located is too small relative to the diameter of the air guide pipe, shadows are easily formed at the opening part. Therefore, the proper distance from the outer surface of the light transmission part of the main body of the lamp cover to the plane where the air outlet end of the air guide pipe is located, namely the proper proportional relation between the depth of the opening part and the diameter of the air guide pipe is set, so that the opening part can be basically illuminated by the lighting module, and the shadow appearing at the opening part can be further effectively eliminated.

Preferably, a substance generator is arranged in the air guide pipe and used for releasing hydroxyl radicals into the air guide pipe. Therefore, the lighting device has the functions of lighting and purifying air.

Drawings

Fig. 1 is a schematic structural diagram of an electrical appliance according to a first embodiment of the present invention;

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

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

Fig. 4 is a schematic structural view (sectional view) of a household appliance according to a third embodiment of the present invention;

FIG. 5a is a schematic structural view of a wind distributing mechanism of an unassembled material generator according to a fourth embodiment of the present invention;

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

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

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;

fig. 8 is a schematic structural view (sectional view) of a household appliance having a heat radiating fin according to a fifth embodiment of the present invention;

Fig. 9 is a schematic structural view of a heat dissipating fin according to a fifth embodiment of the present invention;

fig. 10 is a schematic structural view of a household appliance according to a sixth embodiment of the present invention;

fig. 11 is a schematic structural view (sectional view) of a household appliance according to a seventh embodiment of the present invention;

fig. 12 is a schematic structural view of a lighting module according to a seventh embodiment of the present invention;

fig. 13 is a schematic structural view (sectional view) of a household appliance according to an eighth embodiment of the present invention;

fig. 14 is a schematic structural view (sectional view) of a household appliance according to a ninth embodiment of the present invention;

fig. 15 is a schematic structural view (sectional view) of a household appliance according to a tenth embodiment of the present invention;

fig. 16 is a schematic structural view of a lamp housing of a household appliance according to an eleventh embodiment of the present invention;

fig. 17 is a schematic configuration diagram of a lighting module in an eleventh embodiment;

fig. 18 is a schematic structural view of a lamp housing of a household appliance according to a twelfth embodiment of the present invention;

FIG. 19 is a schematic structural view of a connection portion of the lampshade, the housing outlet and the air duct in the twelfth embodiment;

fig. 20 is a state diagram of the case intake vent or the case outlet vent being open according to some embodiments of the present invention;

Fig. 21 is a state diagram of the housing intake vent or the housing outlet vent closed according to some embodiments of the present invention;

description of reference numerals: 1, a shell; 1a, a shell air inlet; 1b, a shell air outlet; 101, a lamp shade; 101a, a main body light-transmitting portion; 101b, bending the light transmission part; 101c, inner circumferential wall; 2, a fan; 2a, a fan air outlet; 3, an electronic part product room; 3a, a circuit module; 3a1, heating element; 3b, a heat dissipation end; 301, an annular heat dissipation channel; 301a, heat dissipating fins; 302, chamber walls; 302a, heat dissipation holes; 4, a wind distributing mechanism; 4a, an air deflector; 4a1, curved air deflectors; 4a2, curved air deflectors; 5, a substance generator; 6, a substrate; 6a, a substrate air outlet part; 7, a wind 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 (ring substrate); 802, a light emitting unit (LED lamp bead); 9, an air inlet chamber; 10, an opening; 11, a baffle plate; 12, an induced draft pipe; 12a, a vent hole; 13, a wind deflector; 13a, a curved wind deflector; 14, installing a window; x, a substance generating surface; 15, power input.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be modified as needed by those skilled in the art to suit particular applications.

It should be noted that in the description of the present invention, the terms "outer", "inner", "upper", "lower", "front", "rear", etc. indicating the positional relationship are based on the directions or positional relationships shown in the drawings, which are only for the convenience of those skilled in the art to more vividly understand the present invention, and do not indicate or imply that the devices or components must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.

First embodiment

In a first embodiment of the present invention, a household appliance is provided, which can be any household appliance whose circuit module needs to dissipate heat and which uses the air duct structure provided therein to blow off specific substances, such as an air purification device whose operation principle is an anion method or a plasma method, or other household appliances (such as a lighting device) integrated with anion, charged water particles or plasma generation and blow-off functions.

Fig. 1 is a schematic structural diagram of a household appliance in a first embodiment of the present invention, as shown in fig. 1, the household appliance includes: the device comprises a shell 1, a fan 2, a substance generator 5 and an air distribution mechanism 4, wherein a shell air inlet 1a and a shell air outlet 1b are formed on the shell 1, and outside 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 in the shell 1 and used for driving airflow to flow from the shell air inlet 1a to the shell air outlet 1 b; the substance generator 5 is arranged in the air duct between the fan and the housing air outlet 1b, and is used for releasing substances into the air flow, and the air flow flows along the direction from the housing air inlet 1a to the housing air outlet 1b, so that the substances released into the air flow can be carried by the air flow, move towards the housing air outlet 1b and finally be blown out from the housing air outlet 1 b; the air distribution mechanism 4 is located at the upstream side of the material generator 5, and is used for dividing the air flow entering the housing 1 into two parts, one part flows through the material generator 5, the other part does not flow through the material generator 5 but flows through the circuit module 3a located inside the household appliance, and is used for heat dissipation of the circuit module 3a, the air flow flowing through the circuit module 3a can be combined with the air flow flowing through the material generator 5 again and blown out from the housing air outlet 1b, and the air flow can be separately discharged out of the housing 1 from the air flow channel of the other part of the housing 1, which is not limited herein.

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

It should be noted that, in the present embodiment, the air dividing mechanism 4 may be any mechanism that can divide or guide the air duct into two or more air ducts. For example, in some embodiments, the air guide plate and other structures may be combined to guide part of the air flow to other directions, or an air guide pipe which is arranged in parallel to the air flow direction but has a caliber smaller than that of the cross section of the air flow may be used to divide the air flow into one part which continues to flow along the air guide pipe and another part which is blown to the outside of the air guide pipe. Of course, those skilled in the art can understand that the air distributing mechanism 4 capable of dividing or guiding the single air duct into multiple air ducts is not limited to the above two forms, and if only the structure of the air distributing mechanism 4 is simply modified or replaced in other embodiments, the protection scope of the present invention is not exceeded on the premise of meeting the gist of the present invention.

In this embodiment, the flow direction of the air inside the household appliance is: the air outside the casing 1 enters the casing 1 through the casing air inlet 1a, is driven by the fan 2 to flow to the air distribution mechanism 4, and the air flow passing through the air distribution mechanism 4 is divided into two parts, wherein one part flows to the substance generator 5 and then blows out the casing 1 through the air flow channel of the casing air outlet 1b, and the other part flows to the inside of the household appliance and blows out the casing 1 after the heat dissipation is carried out on the inside of the household appliance.

In this embodiment, the substance provided by the substance generator 5 has a certain activity, for example, an activity of purifying air by a sterilization or disinfection means. In some prior art solutions (for example, the solution provided in patent CN 209569698U), the air flow for heat dissipation is an air flow that has already passed through the substance generator 5 and carried with a substance, and the air flow is blown out after the heat dissipation is performed on the light source board or the circuit board. Such arrangement of the airflow path may cause the active material in the airflow for heat dissipation to be lost without performing the air purification function. In the present embodiment, before the air flows into the material generator 5, a part of the air flow is divided for heat dissipation of the circuit module, so that the loss of the air carrying the material after being used for internal heat dissipation is avoided, and the secondary pollution of dust and the like in the circuit module when the air carrying the material is used for heat dissipation is avoided, thereby reducing the workload of the material generator 5 and optimizing the purification effect.

Second embodiment

In the second embodiment of the present invention, a household appliance using an air guiding pipe 7 as an air distributing mechanism 4 is provided, and the second embodiment is a more specific example of the first embodiment, and the parts that are not specifically described include reference numerals and text descriptions, which are the same as the first embodiment, and are not described herein again.

The second embodiment is different from the first embodiment, as shown in fig. 2, the household electrical appliance is provided with an air guide pipe 7 as an air distributing mechanism 4, a substance generator 5 is arranged near the inner side of the pipe wall of the air guide pipe 7, the air inlet end of the air guide pipe 7 (the upper end of the air guide pipe 7 in fig. 2) is communicated with the fan outlet 2a of the fan 2, the cross-sectional area of the air inlet end of the air guide pipe 7 is smaller than the area of the fan outlet 2a, in other words, the air flow blown out from the part of the fan outlet 2a which is not overlapped with the air inlet end of the air guide pipe 7 does not enter the air guide pipe 7, but is divided to the outer side of the air guide pipe 7 for heat dissipation. Therefore, the air distribution effect is achieved by the deviation generated by the mismatch between the cross section of the end, connected with the fan outlet 2a of the fan 2, of the air guide pipe 7 and the cross section of the fan outlet 2 a.

The utility model discloses an inside air flow direction of domestic appliance in the second embodiment does: the air enters the fan 2 and is blown out from the fan outlet 2a, wherein the air blown out from the part of the fan outlet 2a corresponding to the air guide pipe 7 flows into the air guide pipe 7, and the air blown out from the part (namely the part outside the air guide pipe 7) with the cross section of the fan outlet 2a being more than that of the air guide pipe 7 is divided into the air flow outside the air guide pipe 7, and can flow into the household appliance for heat dissipation.

Through the mode, the area of the air outlet 2a of the fan 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 air inlet volume of the part outside the air guide pipe 7 can effectively improve the heat dissipation effect while the air purification volume 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 that of the air inlet end of the air guide pipe 7. For example, as shown in fig. 3, the pipe diameter of the air guide pipe 7 from the air inlet end 7a to the air outlet end 7b of the air guide pipe is gradually enlarged, 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 of the air guide pipe 7 to ensure the air duct shunting 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 large, so that the pressure loss of air flow can be reduced, and the layout of an air channel and the design of fan power are facilitated.

Wherein, preferably, this domestic appliance still includes electronics portion labs 3, and this electronics portion labs 3 encircles and is located the outside of guide duct 7, holds domestic appliance's circuit module 3a in it. Therefore, the heat exchange with the electronic part product chamber 3 can be carried out through partial airflow outside the air guide pipe 7, and the heat dissipation effect is achieved.

In the present embodiment, the household appliance is preferably an LED lamp, and includes a lighting module 8 and a substrate 6, wherein the lighting module 8 is electrically connected to the circuit module 3a, so that 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 case 1, and the illumination module 8 and the circuit module 3a are arranged on both sides of the substrate 6. The light emitting surface faces the lamp shade of the household appliance (i.e., the negative direction of the Y axis in fig. 2, and the same applies to the following embodiments unless otherwise specified). The structure of the household appliance defines an axial direction (i.e., the Y-axis direction in fig. 2) and a radial plane (i.e., the plane formed by the X-axis and the Z-axis in fig. 2).

Preferably, a substrate air outlet portion 6a is further formed on the inner periphery of the substrate 6, and the substrate air outlet portion 6a is communicated with the housing air outlet 1b, so that the airflow for purification and the airflow after heat dissipation can be collected at the housing air outlet 1b and then blown out of the housing 1 through an airflow channel of the housing air outlet 1b, and the structure of the household appliance is simplified while the air outlet amount is increased due to the collection of the airflow.

In the present embodiment, the wall of the air duct 7 of the household appliance is opened to form a mounting window 14, the substance generator 5 is mounted on the mounting window 14, a wind shield 13 is formed on the wall of the mounting window 14 on the side close to the fan 2, and preferably, the substance generating surface X (i.e., the surface on which 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 opening of the pipe wall for installing the substance generator 5, so that the substance generator 5 can be conveniently installed and disassembled, and the maintenance and wiring are simple.

As shown in fig. 2, the wind deflector 13 is formed in the vicinity of the pipe wall of the air guide duct 7 above the mounting window 14 (i.e., in the Y-axis direction in the drawing), and the wind deflector 13 is formed integrally with the substance generator 5, that is, when the substance generator 5 is mounted on the mounting window 14, the wind deflector 13 is formed in the air guide duct 7 so as to extend from a portion of the substance generator 5 and be substantially parallel to the pipe wall of the air guide duct 7 with an appropriate interval therebetween, and so as to substantially cover the substance generation surface X of the substance generator 5 with the wind deflector 13, whereby 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. Moreover, since the wind shield 13 is formed inside the air guide duct 7 and covers the substance generating surface X with an appropriate space therebetween, the active substance generated by the substance generator 5 can be uniformly carried along with the air flow in the air guide duct 7 and blown out after being sufficiently and freely diffused in the space formed with the appropriate space, which is advantageous for the air purifying effect of the household appliance, and the substance generating surface X is prevented from being swept by the air flow, thereby prolonging the service life of the substance generator 5.

Preferably, the upper end of the wind deflector 13 (i.e. the positive direction of the Y axis in fig. 2) is located between the fan outlet 2a and the upper end of the mounting window 14, and the lower end of the wind deflector 13 (i.e. the negative direction of the Y axis in fig. 2) is substantially flush with the lower end of the substance generating surface X. The wind shield 13 can isolate the substance generating surface X from the air flow blown from the 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 has enough distance with the air outlet 1b to diffuse the active substance and blow the active substance out of the household appliance.

Of course, the lower end position of the wind deflector 13 is not limited to this, and is 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 air outlet 1b, and the air flow is not directly blown to the substance generation surface X.

In the present embodiment, the wind deflector 13 is illustrated as extending from the portion of the material generator 5 and being substantially parallel to the pipe wall of the air guide pipe 7 with an appropriate interval therebetween, but the present invention can be similarly realized by providing the wind deflector 13 not parallel to the pipe wall of the air guide pipe 7 but obliquely extending gradually toward the inner center of the air guide pipe 7 or forming an angle with the pipe wall of the air guide pipe 7. Are all within the protection scope of the utility model.

In the present embodiment, the substance that the substance generator 5 releases into the air through the substance generating surface X is a substance having air purification activity, and preferably, the substance is a hydroxyl radical. The hydroxyl radicals contact with harmful substances (such as formaldehyde) in the air and deprive hydrogen from the harmful substances, and meanwhile, the hydroxyl radicals are 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.

Wherein, the air guide pipe 7 preferably adopts a straight pipe structure. Thereby being convenient for installation and occupying small space, leading the internal layout of the household appliance to be compact and being beneficial to the miniaturization of the device.

In the present embodiment, the household appliance may further include an air inlet chamber 9, wherein one end of the air inlet chamber 9 is provided with the housing air inlet 1a, and the other end of the air inlet chamber 9 is provided with the fan 2 at the opening portion, and the air inlet chamber 9 is configured to facilitate the fan 2 to form a negative pressure at the upstream side thereof, so as to more effectively drive the air outside the housing 1 to flow into the household appliance.

In the present embodiment, by using the characteristic that the cross-sectional area of the air inlet end of the air guiding pipe 7 is smaller than the area of the fan outlet 2a, a part of the airflow blown out from the fan outlet 2a can be diverted to the outside of the air guiding pipe 7 for heat dissipation without being guided into the air guiding pipe 7, without particularly providing any other device or mechanism for air diversion. With very simple structure and setting, realized dividing the dual effect that carries out air purification and heat dissipation respectively behind the wind, and air purification and heat dissipation noninterference.

In addition, the present embodiment has been described by taking the example that the cross-sectional area of the air inlet end of the air guiding pipe 7 is smaller than the area of the fan outlet 2a, but the present invention is not limited thereto, and all that is required is to utilize the mismatch, such as the deviation caused by the position shift, between the air inlet end of the air guiding pipe 7 and the fan outlet 2a to achieve the effect of distributing air, and the present invention belongs to the technical scope of the present embodiment, and belongs to the protection scope of the present invention.

Third embodiment

In the third embodiment of the present invention, a household electrical appliance is provided, in which the induced duct 12, the air deflector 4a disposed in the induced duct 12, and the ventilation hole 12a disposed on the side wall of the induced duct 12 jointly constitute the air distributing mechanism 4, and the third embodiment provides another air distributing device for the first embodiment, and the parts not specifically described include reference numerals and text descriptions, which are the same as the first embodiment, and are not described herein again.

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

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

An air guide plate 4a is formed inside the induced duct 12 of the household appliance, and correspondingly, a vent hole 12a communicated with the inside of the household appliance is formed on the side wall of the induced duct 12. The air guide plate 4a is positioned inside the draft tube 12 and is provided corresponding to the vent hole 12a in the side wall of the draft tube 12, and the substance generator 5 in the present embodiment is provided in the vicinity of the tube wall of the draft tube 12 on the side opposite to the vent hole 12a with the air guide plate 4a interposed therebetween. In the third embodiment of the present invention, the air flow direction inside the household appliance is: after being blown out through the fan air outlet 2a, the air flows into the induced duct 12, and after passing through the air deflector 4a inside the induced duct 12, the air flow is divided into two parts, wherein one part flows through the substance generator 5 covered by the air deflector 13, and is mixed with the substances generated and diffused by the substance generator 5 and then 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 to radiate the heat inside the home appliance.

Wherein, preferably, the household appliance further comprises an electronic part room 3, the electronic part room 3 is positioned around the outer side of the induced air pipe 12, and a circuit module 3a of the household appliance is accommodated in the electronic part room. Thus, when the circuit module 3a drives the lighting module 8 to operate, the heat generated by the lighting module 8 can be taken away together by the airflow flowing into the electronic component chamber 3 for heat dissipation. The airflow for heat dissipation formed by the air distribution mechanism 4 of the present embodiment can form positive pressure flow to the heating part inside the household appliance, thereby realizing active heat dissipation and improving the heat dissipation effect. Meanwhile, a fan for heat dissipation is not required to be specially arranged, but one fan can be used for forming heat dissipation airflow and blowing out airflow carrying substances, the heat dissipation airflow and the airflow are not interfered with each other, the structure is simplified, and the respective heat dissipation and air purification effects are improved.

In the present embodiment, the air guiding duct 12 connected to the fan outlet 2a in a matching manner is disposed at the fan outlet 2a of the fan 2, the air blown by the fan 2 can flow into the air guiding duct 12 completely or partially, there is no requirement for the proportional relationship between the cross-sectional area of the air inlet end of the air guiding duct 12 and the cross-sectional area of the fan outlet 2a, and there is no rigid requirement for the matching relationship between the air inlet end of the air guiding duct 12 and the fan outlet 2a, so the design layout is flexible and various.

Preferably, the induced duct 12 and the fan outlet 2a are completely and correspondingly connected in a matching manner, that is, the airflow blown out from the fan outlet 2a is completely guided into the induced duct 12, so that the induced duct can receive and utilize all the airflow from the fan, and the induced duct is compact in structure and convenient to install and maintain.

Because the air guide plate 4a is arranged in the induced duct 12, the air flowing into the induced duct 12 is divided into two parts by the air guide plate 4a, one part is used for heat dissipation, and the other part is used for purification. Therefore, the air blown by the fan 2 is utilized to the maximum, and the air is divided by the air guide plate 4a and then enters the interior of the household appliance along the radial direction of the air guide pipe 12 through the vent hole 12a on the side wall of the air guide 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 closer to the outer side in the radial direction is good.

In this embodiment, the induced duct 12 may also be a straight tube structure, so as to facilitate installation and occupy a small space, so that the internal layout of the household appliance is compact, and the device is miniaturized.

In addition, although the case where the sectional area of the air inlet end of the draft duct 12 is larger than the sectional area of the fan outlet 2a is described in fig. 4 of the present embodiment, the technical effects of the present invention can be similarly achieved even when the sectional area of the air inlet end of the draft duct 12 is equal to or smaller than the sectional area of the fan outlet 2a as described above. When the sectional area of the air inlet end of the induced duct 12 is smaller than the air outlet 2a of the fan, the air flow not entering the induced duct 12 can be guided into the household appliance for heat dissipation by referring to the technical scheme of the second embodiment in addition to the air flow entering the induced duct 12 in the present embodiment.

Fourth embodiment

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

The main improvement of the fourth embodiment over the third embodiment is that, in the fourth embodiment of the present invention, as shown in fig. 5a and 5b, the household appliance uses a curved air deflector 4a1 instead of the air deflector 4a of the third embodiment, and the curved air deflector 4a1 is not formed integrally with the substance generator 5, but is formed in a manner of being disposed inside the wall of the induced duct 12. In addition, in the household appliance of the present embodiment, a curved wind deflector 13a is used instead of the wind deflector 13 in the third embodiment.

Since the curved wind deflector 13a can guide the air flow more smoothly, a large throttle or stagnation point is not easily generated, and since the curved wind deflector 13a is provided inside the draft tube 12 independently of the material generator 5 and does not need to be formed integrally with the material generator 5, the material generator 5 can be stored and assembled easily, and it is not difficult to install or store the material generator due to the curved portion.

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

The curved air deflector 4a1 and the curved air deflector 13a in the present embodiment may be curved along the air flow direction or curved across the air flow direction, and the curvatures thereof may be the same or different, and are not particularly limited. In addition, the ventilation holes 12a are exemplified in the third and fourth embodiments, but the present invention is not limited to the case of the through holes, and any passage for air to flow through, such as ventilation grilles, ventilation windows, and through holes, and even the partial pipe wall of the induced duct 12 corresponding to the air deflector 4a or the curved air deflector 4a1 is a large opening, all of which belong to the scope of the present invention. And not as a limitation on the scope of the invention because the language describes the vent holes.

Fifth embodiment

In a fifth embodiment of the present invention, there is provided a household appliance in which an annular heat dissipation channel 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 the parts that are 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 again.

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 includes an annular heat dissipation channel 301 surrounding the air duct 7 or the air guiding duct 12 for receiving the air flow blown out to the outside of the air duct 7 or the air guiding duct 12, wherein preferably, the electronic component chamber 3 surrounds the outside of the annular heat dissipation channel 301, and the circuit module 8 of the household electrical appliance is accommodated therein, and the annular heat dissipation channel 301 and the electronic component chamber 3 are preferably separated by a metal plate with excellent heat conductivity, such as a copper plate or an aluminum plate, and the outer side wall of the annular heat dissipation channel 301 can also have the side wall of the electronic component chamber 3 and form an integral structure with the electronic component chamber 3.

Fig. 7 is a schematic diagram illustrating heat transfer and airflow directions of a household appliance according to a fifth embodiment of the present invention, in fig. 7, arrows located in the electronic component chamber 3 indicate heat transfer directions, and arrows located in the annular heat dissipation channel 301 and the air guide duct 7 indicate airflow directions. The present invention provides a fifth embodiment in which the flow direction of air inside the household appliance is: the air blown out from the outer periphery of the cross section of the air outlet of the fan flows into the annular heat dissipation channel 301 relative to the part with the larger cross section of the air guide pipe 7, and carries away the heat conducted from the electronic component chamber 3 adjacent to the annular heat dissipation channel 301.

In the present embodiment, the inner and outer double-layer tube structures separate the air guiding tube 7 located inside from the annular heat dissipating channel 301 located outside, and the partial air flow passing through the outer annular heat dissipating channel 301 exchanges heat with the inside of the electronic component chamber 3, so as to effectively prevent external foreign objects (such as mosquitoes and dust) from flowing into the electronic component chamber 3 and affecting the performance and the service life of the circuit module 3 a.

In this embodiment, the annular heat dissipation channel 301 has a straight tube structure and is disposed coaxially with the air guide tube 7, so that the household appliance can be further compact in structure and convenient to install, and in addition, the structure enables the air duct extending direction in the annular heat dissipation channel 301 to be consistent with the air flow direction in the air guide tube 7, and the air duct extending direction and the air flow direction are isolated from each other, so that turbulent flow is not easily formed.

The above description has been made on the case of the air guide duct 7, and referring to the third embodiment or the fourth embodiment, in the case of providing the draft duct 12, the annular heat dissipation channel may be similarly provided outside the draft duct 12, and part of the airflow branched by the vent hole 12a may be introduced into the annular heat dissipation channel 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 dissipating fin 301a according to a fifth embodiment of the present invention, and fig. 9 is a schematic structural view of the heat dissipating fin 301a according to 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 inside the annular heat dissipation channel 301 and are uniformly distributed along the circumferential direction, and preferably, the heat dissipation fins 301a are arranged to extend along the airflow direction in the annular heat dissipation channel 301, so that the increase of the flow resistance of the airflow caused by the difference between the extending direction of the fins and the airflow direction is avoided. In some embodiments, the heat dissipation fins 301a may be connected to both the pipe wall of the air guiding pipe 7 or the air guiding pipe 12 and the outer peripheral inner wall of the annular heat dissipation channel, so as to increase the contact area of the heat dissipation fins 301a with 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 dissipation fins 301a may also be disposed at intervals without contacting with the wall of the air guiding duct 7 or the induced duct 12, so as to avoid the influence of the heat transferred through the heat dissipation fins 301a on the substance generator 5 and the airflow inside the air guiding duct 7 or the induced duct 12. In addition, the heat dissipating fins 301a preferably connect the fan outlet 2a at one end of the annular heat dissipating channel 301 with the substrate outlet 6a (located at the inner periphery of the substrate 6 where the plurality of openings are formed) at the other end of the annular heat dissipating channel 301, so as to better guide the airflow direction, avoid turbulence, and further improve the heat dissipating effect.

In the present embodiment, the outer peripheral inner wall of the annular heat dissipation channel 301 is completely matched and connected to the fan outlet 2a, in other words, the aperture of the fan outlet 2a is completely matched and matched with the diameter of the outer peripheral inner wall of the annular heat dissipation channel 301. With this dimensional fit relationship, the air blown out by the fan outlet 2a can be utilized maximally, and the structural matching facilitates assembly.

Therefore, according to the utility model discloses an embodiment, this domestic appliance is before the air current flows through material generator 5, and a part air current of branch promptly is used for the heat dissipation to circuit module, has avoided carrying the air of material to be used for discharging again after the inside heat dissipation and cause the loss to receive the secondary pollution of dust etc. in the circuit module when the air that has avoided carrying the material is used for the heat dissipation again, thereby can optimize purifying effect. Specifically, in the utility model discloses an embodiment has been lifted two kinds and has been divided the implementation of wind mechanism:

the air distributing mechanism of one embodiment is the air guide pipe 7, so that the area of the air outlet 2a of the fan is larger than the area of the air inlet end of the air guide pipe 7, and the air flow outside the air guide pipe 7 is distributed for heat dissipation, that is, the air inlet amount outside the air guide pipe 7 can effectively improve the heat dissipation effect while the air purification amount of the household appliance is not influenced. The air distributing mechanism of another embodiment is an induced duct 12, and the air deflector 4a arranged in the induced duct 12 and the vent hole 12a arranged on the side wall of the induced duct 12 are jointly formed. Airflow for heat dissipation formed by the air distribution mechanism in the embodiment can form positive pressure flow on a heating part inside the household appliance, so that active heat dissipation is realized, and the heat dissipation effect is improved. Meanwhile, a fan for heat dissipation is not required to be specially arranged, but one fan can be used for forming heat dissipation airflow and blowing out airflow carrying substances, the heat dissipation airflow and the airflow are not interfered with each other, the structure is simplified, and the respective heat dissipation and air purification effects are improved.

Sixth embodiment

In the prior art, some household appliances with integrated air duct systems have air ducts designed to suck air through a housing air inlet located on one side of a power input portion and blow out the air through a housing air outlet located on one side of a lamp cover. When the household appliance is used, the power input part is usually installed towards or embedded into a ceiling, so that dust is easy to fall or accumulate, and the household appliance is difficult to clean. If the air duct system of the household appliance is turned off for a long time and then turned on again, dust accumulated on one side of the power input part can be blown out to a user or an indoor environment through the air duct, and user experience is affected.

Therefore, in a sixth embodiment of the present invention, a household appliance is provided, which can solve the above problems.

Fig. 10 is a schematic structural diagram of a household appliance according to a sixth embodiment of the present invention, and as shown in fig. 10, the household appliance includes: electric power input part 15, casing 1, lighting module 8 and lamp shade 101, wherein, casing air intake 1a and casing air outlet 1b have been seted up on the casing, fan 2 sets up inside casing 1, be used for driving air current to flow from casing air intake 1a to casing air outlet 1b, lighting module 8's light emitting area is towards this domestic appliance's lamp shade 101 (Y axle negative direction in fig. 10 promptly), and, casing air intake 1a, casing air outlet 1b and lamp shade 101 all set up at this domestic appliance's homonymy and with the same orientation of light emitting area, and casing air intake 1a is located the edge of this lamp shade 101, casing air outlet 1b is located the central authorities of this lamp shade 101.

In this embodiment, the air flow direction in the household appliance is: the air outside the housing 1 enters the housing 1 through the housing air inlet 1a provided at the edge of the lamp house 101 in a direction from the lamp house 101 side to the power input portion 15 side (the Y-axis positive direction in fig. 10), is driven by the fan 2 to flow to the housing air outlet 1b also located at the lamp house 101 side (i.e., the same direction as the light emitting surface), and is blown out from the housing air outlet 1b in a direction from the power input portion 15 side to the lamp house 101 side (the Y-axis negative direction in fig. 10). Since the housing air inlet 1a and the housing air outlet 1b are disposed on the same side of the housing 1 and face the same direction as the light emitting surface, air enters the housing air inlet 1a in a direction from the lamp housing 101 side to the power input portion 15 side (Y-axis direction in fig. 10). Because the shell air inlet 1a usually faces to a user, dust is not easy to accumulate and easy to clean, the air inlet mode is not easy to introduce dust into the air duct, and the cleanness of blown air flow can be guaranteed.

Moreover, because the housing air inlet 1a is arranged at the edge of the lamp shade 101 of the household appliance, the housing air inlets 1a at multiple positions can be arranged in a mode of surrounding 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 housing air inlet 1a, therefore, the air duct design freedom degree is high, the sectional area of the housing air inlet 1a can be ensured, the wind resistance is reduced, and the power selection and the air duct design of the fan 2 can be optimized.

Seventh embodiment

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

Fig. 11 is a schematic structural diagram of a household appliance according to a seventh embodiment of the present invention, and a main improvement of the seventh embodiment over the sixth embodiment is that, in the seventh embodiment of the present invention, as shown in fig. 11, the household appliance further includes a circuit module 3a and an electronic component chamber 3 for accommodating 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) extending from the housing air inlet 1a to the housing air outlet 1 b. Based on the structural improvement of the seventh embodiment relative to the sixth embodiment, in the seventh embodiment of the present invention, after the air outside the casing 1 enters the casing from the casing air inlet 1a, the air will flow through the air duct formed by the chamber wall 302 of a part of the electronic component chamber 3, and the heat conducted through the air duct in the part of the electronic component chamber 3 can be dissipated. And because casing air intake 1a and casing air outlet 1b set up on the same face again, the wind channel can produce in the inside overall arrangement of casing 1 and buckle and the extension, can utilize this characteristic, further increase the area of contact of cooling air current and electron part room 3 to improve the radiating 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 can be closed to ensure heat dissipation and prevent foreign matter from entering the electronic component chamber 3.

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

Fig. 12 is a schematic structural diagram of a lighting module in a seventh embodiment of the present invention, and as seen from fig. 11 and 12, the lighting module 8 includes an annular substrate 801 and LED beads (i.e., light emitting units) 802 distributed on the surface of the annular substrate 801, preferably, the LED beads 802 are uniformly distributed on the annular substrate 801 to obtain a stable and uniform light source, and in addition, a portion of the annular substrate 801 extends to the inside of the air duct to dissipate heat by utilizing the air flow in the air duct and the portion of the annular substrate 801 directly contacting with each other.

In the present embodiment, the substance generator 5 for releasing hydroxyl radicals into the air flow is further provided in the household appliance, so that the household appliance has both functions of illumination and air purification, and preferably, the substance generator 5 is provided in the air duct, so that the structure can be compact.

In the present embodiment, the household appliance further includes an air duct 7, the air duct 7 is communicated with the air duct or forms a part of the air duct, the substance generator 5 is disposed near the inner side of the duct wall, the fan 2 is disposed in a manner of being communicated with the air duct and matched with the air duct 7, and the electronic component chamber 3 is disposed on the periphery of the air duct 7.

Preferably, the structure and installation manner of the substance generator 5 may be the same as those of the substance generator in the second embodiment, and are not described herein again. In addition, a filter screen structure (not shown) is filled at the shell air inlet 1a of the household appliance, the filter screen structure can filter dust in the air, the cleanliness of the sucked air is further guaranteed, and the shell air inlet 1a is arranged on one side of the lampshade facing a user, so that the filter screen structure is convenient to clean and replace for the user.

Eighth embodiment

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

Fig. 13 is a schematic structural view (sectional view) of a household electrical appliance according to an eighth embodiment of the present invention, and the eighth embodiment is improved over the seventh embodiment mainly in that, in the eighth embodiment of the present invention, a circuit module 3a of the household electrical appliance includes a circuit board (not shown) having a heat dissipation end 3b extending outward from an electronic component chamber 3 and entering the inside of an air duct, and at least a part of a heat generating element 3a1 in the circuit module 3a may be disposed at the heat dissipation end 3 b. The circuit board partially extends out of the electronic component room 3 and the partial heating element 3a1 is arranged outside the air duct, so that the air in the air duct is directly contacted with the partial circuit board and the heating element 3a1, thereby enhancing the heat dissipation effect of the air on the circuit module 3 a.

It should be noted that the heating element 3a1 refers to a circuit element that needs to bear high voltage or large current during power supply operation, and a power device in a high-frequency operating state in the conversion circuit, specifically, the heating element refers to one or a combination of multiple elements of an inductor, a bridge rectifier, a fuse, a switching tube, a resistor, a power transistor, and an integrated chip.

In fig. 13, the heating element 3a1 is illustrated as being entirely located outside the electronic component chamber 3, but the present invention is not limited to this, and the heating element 3a1 is entirely located inside the electronic component chamber 3 or spans the inside and outside of the electronic component chamber, and the heat dissipation function can be achieved by direct contact of the heat dissipation air with the heat dissipation end 3b of the circuit board or a part of the heating element 3a 1.

Ninth embodiment

The utility model discloses a ninth implementation mode provides a household appliance who offers louvre 302a on the locellus 302 of the electronic part room 3 that constitutes the wind channel, and the ninth implementation mode has described this household appliance's embodiment based on the sixth implementation mode is more specific, and the part that does not do the special explanation includes reference numeral and word description, all is the same with the sixth implementation mode, does not do the repeated description here.

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

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

Herein, it is preferable that the chamber wall 302 provided with the heat radiation holes 302a is provided as an upper (Y-axis positive direction in fig. 14) chamber wall of the electronic component chamber 3. Since the hot air is light, the flowing 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 function of suppressing external dust from falling into the electronic component chamber 3 can be achieved while heat is dissipated.

Tenth embodiment

The utility model discloses a in the tenth embodiment, provide a domestic appliance who has combined lower air inlet structure and divides wind mechanism 4 (being aviation baffle 4a in this embodiment, induced duct 12 and the wind mechanism that divides that ventilation hole 12a constitutes jointly), the tenth embodiment is the further improvement to the sixth embodiment, and the part that does not do the particular description includes reference numeral and word description, all is the same with the sixth embodiment, does not do the reducibility here.

Fig. 15 is a schematic structural view (cross-sectional view) of a household electrical appliance according to a tenth embodiment of the present invention, and the main improvement of the tenth embodiment over the sixth embodiment is that, in the tenth embodiment of the present invention, the household electrical appliance further includes an air distributing mechanism 4 including an induced duct 12, an air deflector 4a disposed inside the induced duct 12, and a vent hole 12a disposed on a side wall of the induced duct 12. The induced air duct 12 is communicated with the air duct or forms part of the air duct, the substance generator 5 is arranged near the inner side of the duct wall, and the electronic part sample room 3 is arranged on the periphery of the induced air duct 12. In the present embodiment, the air distribution mechanism 4 is configured as an example of the combined structure in the third embodiment, the air guide plate 4a is disposed inside the induced duct 12, the side wall of the induced duct 12 is provided with the vent hole 12a communicating with the electronic component chamber 3, and the air guide plate 4a guides part of the airflow inside the induced duct 12 to the vent hole 12 a.

As shown in fig. 15, the air flow path inside the household electrical appliance is formed such that, after entering the household electrical appliance from the housing air inlet 1a disposed at one side of the lamp shade, the air flows through a part of the air channel formed by the upper chamber wall of the electronic component chamber 3, flows into the air guiding pipe 12, is divided into two parts by the air guiding plate 4a inside the air guiding pipe 12, wherein one part of the air flows into the electronic component chamber 3 through the air vent 12a on the side wall of the air guiding pipe 12, and performs secondary heat dissipation on the circuit module 3a, and wherein after the other part of the air flows through the substance generator 5, the air carrying the substance released by the substance generator 5 is blown out from the housing air outlet 1b under the driving of the fan 2.

The utility model discloses an among the tenth embodiment, through set up aviation baffle 4a in induced duct 12, the air that will flow into induced duct 12 divides a part to flow in electronics portion room 3 to the circuit module secondary heat dissipation, has further strengthened the radiating effect, and this structure makes this domestic appliance's heat dissipation mechanism can satisfy the heat dissipation demand of more powerful circuit module 3 a.

In the present embodiment, the heat generating element 3a1 of the circuit module 3a is preferably disposed at a position opposite and adjacent to the ventilation hole 12 a. The heating element 3a1 with a large heat dissipation requirement in the circuit module 3a is arranged near the air vent 12a of the electronic part room 3, so that the main heat source of the circuit module 3a can be intensively dissipated, and the heat dissipation efficiency is improved and the heat dissipation effect is ensured.

Further, the outer periphery of the draft duct 12 and the inner periphery of the electronic component chamber 3 partially overlap each other, so that the draft duct 12 and the electronic component chamber 3 can communicate with each other at the partially overlapped portion. Therefore, the air flowing into the electronic part room 3 can be blown out from the shell air outlet 1b through the communication part after heat dissipation, and the wind resistance of the household appliance is reduced.

Through the above manner, since the manner that the housing air inlet 1a is arranged on one side of the lamp shade 101 is adopted, the dust content in the incoming air flow is low, and therefore, even if the air distribution manner that the air flow is guided into the electronic part chamber 3 is adopted, dust cannot be introduced into the electronic part chamber 3, so that the working performance and the service life of the circuit module 3a in the electronic part chamber 3 are guaranteed.

Therefore, according to the utility model discloses an embodiment, lamp shade one side (being light emitting area towards one side) is usually towards the user, then set up the air intake at the edge of lamp shade, difficult accumulation dust is and easily clean, so this air inlet mode is difficult to introduce the dust in the wind channel, thereby can ensure the cleanliness factor who blows off the air current, and simultaneously, air intake and air outlet all set up the homonymy at the casing, the wind channel is buckled, the wind channel that will buckle again and the adjacent setting in electron portion room, make full use of the wind channel of buckling dispel the heat, make this domestic appliance compact structure and heat radiating area great.

Eleventh embodiment

Considering that the household electrical appliances of the first to tenth embodiments each have the air duct structure extending from the housing air inlet 1a to the housing air outlet 1b, when the household electrical appliance is provided with the lamp cover 101 structure, there are the following problems:

on the one hand, when the lighting module 8 composed of the plurality of light emitting units 802 (for example, patch-type LED beads) is disposed in the housing 1, the cover surface of the lampshade 101 needs to be spaced from the light emitting surface formed by the plurality of light emitting units 802 by a certain distance, otherwise, each light emitting unit 802 projects a spot with a relatively bright corresponding position and a relatively dark surrounding position on the cover surface of the lampshade 101, and the soft light property of the lampshade 101 itself is not enough to compensate for the above-mentioned problem, which results in the generation of "granular feeling" and affects the appearance.

On the other hand, the end surface of the household appliance facing the lamp housing 101 needs to leave an extra space for the airflow outlet air inside the household appliance, i.e., an opening portion is formed at the end surface 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 induced duct 12 or the air guiding pipe 7. On the other hand, if the cover surface of the lampshade 101 is a plane, the air duct directly extends to be connected with the cover surface of the lampshade 101, and the existence of the air guiding pipe 12 or the air guiding pipe 7 may affect the illumination of the opening 10, and when the opening 10 cannot be sufficiently illuminated, the part of the opening 10 of the household appliance forms a shadow visually, which affects the use feeling.

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 diagram of a lamp housing of a household appliance according to an eleventh embodiment of the present invention, fig. 17 is a schematic structural diagram of a lighting module 8 according to the eleventh embodiment, and when viewed in conjunction with fig. 16 and 17, the household appliance includes: 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. Wherein, 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 figure) of the substrate (annular substrate) 801, the side surface on which the light emitting units are disposed is a 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 the light emitting surface faces the lamp cover 101, the lamp cover 101 is made of a light transmissive (such as milky acrylic resin, etc.), the lamp cover 101 has a main body light transmissive portion 101a and a bent light transmissive portion 101b, wherein the main body light transmissive portion 101a is disposed corresponding to and spaced apart from the lighting module 8, the bent light transmissive portion 101b is formed by bending the main body light transmissive portion 101a, and the lamp cover 101 surrounds the opening 10 at a portion corresponding to the bent light transmissive portion 101b, in other words, the opening 10 in the present embodiment is a hollow portion surrounded by the bent transparent portion 101b, and also serves as the housing outlet 1 b.

In the eleventh embodiment of the present invention, the lamp cover 101 corresponds to the lighting module 8, and the main light transmission part 101a of the lamp cover 101 is disposed at an interval substantially parallel to the light emitting surface of the lighting module 8, and since the distance between the two can be realized by changing the height of the bent light transmission part 101b, it is convenient to adjust the distance between the lamp cover 101 and the lighting module 8 to a suitable distance, so as to eliminate the "granular sensation" formed by the light emitting unit on the lamp cover. Furthermore, due to the soft light property of the lamp cover 101 itself and the presence of the bent light-transmitting portion 101b as a part of the lamp cover 101, the bent light-transmitting portion 101b can scatter or reflect light from the illumination module 8 to illuminate the opening 10 surrounded by the bent light-transmitting portion 101b, thereby reducing or even eliminating shadows at the opening 10.

Twelfth embodiment

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

Fig. 18 is a schematic structural diagram 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 diagram of a connection portion between the lamp housing 101, a housing outlet 1b, and a duct (in this embodiment, an air guide duct 7) in the twelfth embodiment. As shown in fig. 18 and 19, the household electrical appliance further includes an air guide pipe 7 disposed corresponding to the opening 10, the bent transparent portion 101b has an inner peripheral wall 101c extending to an air outlet end of the air guide pipe 7, and the air outlet end of the air guide pipe 7 is connected to the inner peripheral wall 101c in a matching manner.

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 air is prevented from entering the lampshade 101 from the joint of the air guide pipe 7 and the bent light-transmitting part 101b when being blown out from the opening part 10, the sealing performance of the lampshade 101 is improved, and foreign matters are prevented from entering.

In the present embodiment, the air outlet end of the air guiding pipe 7 is preferably flush with the light emitting surface or is located on both sides of the light emitting surface of the lamp shade 101, so that the air guiding pipe 7 can be prevented from blocking the light from the illumination module 8 as much as possible, the bent light transmitting portion 101b can be sufficiently irradiated by the illumination module 8, the opening 10 is illuminated, and the shadow at the opening 10 is further reduced or eliminated. Note that the "flush" defined herein is not strictly parallel in a mathematical sense, but is required to be substantially flush as long as the effect of illuminating the opening 10 is achieved. Even if the air duct 7 goes out to one side of the luminous surface, under the comprehensive factor condition, as long as the effect that can illuminate the opening part 10 is reached, the spirit of the utility model also accords with, belong to the technical scheme that the utility model discloses will protect.

It should be noted that, although the embodiment of the present invention has been specifically described only in the case where the air outlet end 7b of the air guiding pipe 7 is flush with the light emitting surface or is located on the side of the light emitting surface facing the power input portion, it can be understood by those skilled in the art that when the air outlet end 7b of the air guiding pipe 7 is located on the side of the light emitting surface and is advanced within a predetermined range, the lighting light can 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 bent light transmitting portion 101b, the position layout of the light emitting unit 802, the position relationship between the main body light transmitting portion 101a and the light emitting surface, the bending degree of the bent light transmitting portion 101b, and other factors. Therefore, the position of the air outlet end 7b of the air guide pipe 7 and the light emitting surface is limited based on whether the illumination light of the light emitting surface can illuminate the whole opening 10, so that the household appliance does not generate shadow due to the existence of the air guide pipe 7 connected with the opening 10. As long as reach the effect that can illuminate opening 10, one side of going out the light emitting area before the air-out end of guide duct 7 also accords with the utility model discloses a spirit belongs to the utility model discloses the technical scheme that will protect.

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

The bent light-transmitting portion 101b is formed in a curved surface structure in which the diameter of the opening 10 gradually shrinks in a direction extending from the main light-transmitting portion 101a toward the opening 10. On one hand, the cambered surface structure gradually shrinks to form a streamline cambered surface structure, the surface transition of the cambered surface structure is smooth, the guiding of airflow flowing out of the opening part 10 is facilitated, and meanwhile, light rays corresponding to all parts of the opening part 10 can be distributed more uniformly.

In the present embodiment, the maximum distance between the lamp cover 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. With such an arrangement, the lampshade 101 and the lighting module 8 have a suitable distance therebetween, and the "granular feeling" can be effectively eliminated.

The maximum distance d from the outer surface of the main light transmission part 101a of the lampshade 101 to the plane where the air outlet end of the air guide pipe 7 is located is set to be 0.5-1.5 times of the diameter of the air guide pipe 7. If the proportional relationship is too large, that is, if the distance from the outer surface of the main body light-transmitting portion 101a of the globe to the plane where the air outlet end of the air guide duct 7 is located is too long with respect to the diameter of the air guide duct 7, or if the proportional relationship is too small, that is, if the distance from the outer surface of the main body light-transmitting portion 101a of the globe 101 to the plane where the air outlet end of the air guide duct 7 is too small with respect to the diameter of the air guide duct 7, shadows are likely to be formed in the opening 10. Therefore, by setting a suitable distance from the outer surface of the main light-transmitting portion 101a of the lamp cover 101 to the plane where the air outlet end of the air guide pipe 7 is located, that is, by setting a suitable proportional relationship between the depth of the opening 10 and the diameter of the air guide pipe 7, the opening 10 can be substantially illuminated by the illumination module 8, and the shadow appearing at the opening 10 can be further effectively eliminated.

In this embodiment, a substance generator 5 is disposed in the air guiding pipe 7 of the household appliance, and the substance generator 5 can release a substance into the air to purify the air, and preferably, the substance is a hydroxyl radical.

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

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

In some embodiments, the opening and closing mechanism for controlling the opening and closing of the housing air inlet 1a or the housing air outlet 1b is a step motor, for example, a baffle 11 is disposed at the opening 10 and the baffle 11 is connected to a shaft of the step motor, and when the fan 2 is powered ON, the step motor is in an ON state, so that the baffle 11 rotates to open the opening 10; when the fan 2 is powered OFF, the stepping motor is in an OFF state, and the baffle plate 11 retracts to the original position at the moment, so that the opening part 10 is closed.

In other embodiments, the opening and closing mechanism for controlling the opening and closing of the casing air inlet 1a or the casing air outlet 1b may also be a solenoid, a magnetic clip is disposed on the shaft of the blocking piece 11, and when the fan 2 is powered on, the solenoid is powered on, so that the magnetic clip on the blocking piece 11 is attracted by the solenoid to displace, and the blocking piece 11 is driven to rotate to open the opening 10; when the fan 2 is powered off, the electromagnetic coil is also powered off, the electromagnetic coil loses the magnetic attraction to the magnetic clip, the catch 11 retracts to the original position, and the opening part 10 is closed.

In addition, in some embodiments of the present invention, the substance generator 5 has a baffle plate covering its substance generating surface (not shown) to avoid the gas flow from directly blowing the substance generating surface. The substance generator 5 includes, for example, a high voltage generating circuit (not shown) that generates negative ions (i.e., nanoe (registered trademark)) encapsulated in nano-sized (e.g., about 5 to 20nm in diameter) particulate water by applying a high voltage to moisture in air condensed on the needle-like discharge electrodes.

The nanoe can exist in the air for a long time (about 6 times the life of the negative ion) as compared with the case where the negative ion exists alone. Furthermore, since nanoe is very small in the nanometer size, it can be uniformly diffused throughout the room and can float for a long time. As is known, nanoe has a high activity and the ability to act on malodorous components and decompose to non-malodorous components. Therefore, the diffusion of the nanoe into the room can provide effects such as a) an effect of deodorizing an odor (attached odor) attached to the floor surface, wall surface, or the like in the room, b) an effect of inactivating allergens, viruses, or the like floating or attached to the room, and c) an effect of sterilizing fungi, bacteria, or the like floating or attached to the room.

Therefore, according to the utility model discloses an embodiment can compromise and when eliminating lamp shade 101 surface graininess, realize diffusing the indoor technological effect who carries out air purification with the nanoe to, can not produce unnecessary shade because be provided with the material generator 5 and the guide duct 7 that produce the nanoe, influence pleasing to the eye.

So far, the technical solution of the present invention has been described with reference to the accompanying drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Especially, the utility model discloses a although the name is "domestic appliance", but "domestic" two characters wherein, do not restrict the utility model discloses protect the use place of main part, "domestic appliance", can use in other all kinds of public or private indoor places except domestic, for example office, meeting room, classroom, library, indoor place of entertainment, supermarket etc. use the place and do not constitute the restriction to the protection scope of the utility model.

Claims

1. An illumination device comprises

The lamp comprises a power input part, a shell, a lighting module and a lampshade which are arranged in sequence;

the lighting module comprises a substrate and a plurality of light emitting units distributed on a light emitting surface of the substrate;

the lampshade is covered on one side of the light-emitting unit of the lighting module and surrounds to form an opening part,

characterized in that the lamp shade has:

a main body light-transmitting portion corresponding to the illumination module and provided at an interval, and,

and a bent light-transmitting portion formed by bending and extending the main light-transmitting portion and extending toward the opening.

2. The lighting device according to claim 1, further comprising an air guide duct or an air guide duct corresponding to the opening and extending toward the opening, wherein the bent light-transmitting portion has an inner peripheral wall extending to the air guide duct or the air guide duct, and the air guide duct or the air guide duct is in matching sleeve connection with the inner peripheral wall.

3. The lighting device according to claim 2, wherein the air outlet end of the air duct or the air guiding duct is flush with the light emitting surface, or is respectively located at two sides of the light emitting surface with the lampshade.

4. The lighting device according to claim 2, wherein the bent light-transmitting portion is provided obliquely with respect to the air guide duct or the air guide duct.

5. The illumination device according to claim 4, wherein the bent light-transmitting portion has a curved surface structure in which a diameter of the opening portion gradually decreases in a direction extending from the main light-transmitting portion to the opening portion.

6. The illumination device according to claim 1, 2 or 5, wherein an angle formed between a tangential direction from a center point of the opening portion to an outer surface of the bent light-transmissive portion and an axial direction of the opening portion is 30 ° to 60 °.

7. The illumination device according to claim 1 or 2, wherein a maximum distance between the lamp cover and the light emitting surface is 2 to 5 times an average distance between two adjacent light emitting units on the substrate.

8. The lighting device of claim 2, wherein a maximum distance from an outer surface of the light-transmitting portion of the main body of the lamp cover to a plane where the air outlet end of the air guide duct or the air guiding duct is located is 0.5 to 1.5 times a diameter of the air guide duct or the air guiding duct.

9. The lighting device of claim 2, wherein a substance generator is disposed within the air-conducting duct, the substance generator configured to release hydroxyl radicals into the air-conducting duct or the induced duct.