Household fan

Abstract

The present application relates to a household fan comprising an electric motor (4), an impeller (3) driven in rotation by the motor (4) and a protective grille (6) arranged around said impeller (3), characterized in that it comprises - a lighting frame (80) supporting at least one light source (81), arranged at the periphery of the protective grille (6), - a deflector (84) facing the lighting frame (80) and covering at least a portion of the periphery of the protective grille (6), the deflector (84) reflecting and / or diffusing the light emitted by the lighting frame (80).

Description

Technical Field

[0001] This application relates to the field of household fans, which include an electric motor, an impeller driven to rotate by the motor, and a protective grille disposed around the impeller. Background Technology

[0002] An industrial fan is known from document CN204900289. The fan includes a frame that supports an impeller that is driven to rotate by an electric motor. The frame includes a protective grille extending in front of the impeller and includes a set of LEDs disposed around the periphery of the protective grille.

[0003] The advantage of this industrial equipment is that it can be used as a lighting device when the brightness is reduced. However, the disadvantage is that it diffuses the light directly generated by the LEDs, making the light dazzling and irritating to the eyes. Utility Model Content

[0004] This application aims to overcome this shortcoming by proposing a household fan that can be used for both room ventilation and room lighting, while emitting diffused light that is comfortable for the eyes. Another objective of this application is to propose a household fan that can also be used as a decorative item.

[0005] Therefore, this application relates to a household fan comprising an electric motor, an impeller driven to rotate by the motor, and a protective grille disposed around the impeller, characterized in that the household fan comprises: an illumination frame supporting at least one light source disposed around the periphery of the protective grille; and a deflector facing the illumination frame and covering at least a portion of the periphery of the protective grille, the deflector reflecting and / or diffusing the light emitted by the illumination frame.

[0006] The presence of this deflector allows for a softer diffusion of light. Furthermore, this deflector allows for customization of the light emitted by the lighting frame, as the deflector can be designed in shapes and colors to suit the user's preferences.

[0007] The device may also have one or more of the following features, individually or in combination.

[0008] According to an advantageous feature of this application, the protective grille includes a rear grille and a front grille, which define a cage around the impeller.

[0009] According to an advantageous feature of this application, the lighting frame and deflector form an assembly that is detachably fastened to the protective grille.

[0010] According to an advantageous feature of this application, the deflector at least partially covers the surface of the front grille swept by the impeller blades.

[0011] This feature allows the airflow generated by the impeller to cool the deflector and prevents it from heating up significantly due to exposure to the light source.

[0012] According to an advantageous feature of this application, the deflector includes a front wall extending in front of the lighting frame for diffusing and / or reflecting light emitted from the lighting frame.

[0013] According to another advantageous feature of this application, the lighting frame is annular, and the outer diameter of the deflector front wall substantially corresponds to the outer diameter of the lighting frame.

[0014] According to an advantageous feature of this application, the front wall extends from the periphery of the lighting frame toward the center of the impeller, at least partially covering the surface of the protective grille swept by the blades of the impeller.

[0015] This feature allows the deflector to utilize the larger surface area of ​​the protective grille for light diffusion and / or reflection.

[0016] According to an advantageous feature of this application, the deflector includes a central opening that allows airflow generated by the impeller to pass through.

[0017] This feature allows direct airflow from the fan to maintain the cooling function normally provided by the fan.

[0018] According to an advantageous feature of this application, the fan includes a cover removably mounted on the lighting frame and / or the deflector, the cover closing the central opening of the deflector.

[0019] This feature allows the front wall of the fan's protective grille to be completely shielded, blocking any airflow directed directly at the user. It also allows for the use of the entire front surface of the protective grille to diffuse and / or reflect light. This fan configuration is particularly useful in winter, when users do not want direct airflow to cool them, but rather prefer more diffused airflow to even out the indoor air temperature.

[0020] According to an advantageous feature of this application, the lighting frame is detachably fastened to the protective grille.

[0021] This feature allows the fan to be used and / or sold without a lighting frame, which can be provided as an accessory.

[0022] According to an advantageous feature of this application, the lighting frame is fastened to the protective grille by a clamping element or by a magnetic component.

[0023] According to an advantageous feature of this application, the lighting frame is powered by a wire, the wire including at least one portion extending outside the lighting frame, the portion having a plug that allows it to be connected to a current source.

[0024] This solution allows for the supply of current to the lighting frame through a simple and economical method.

[0025] According to an advantageous feature of this application, the fan includes a base and a fan head supported by the base, the fan head enclosing the motor and supporting a protective grille, and the base and / or fan head includes a power connector that mates with a plug to supply power to the lighting frame.

[0026] This feature is simple and economical to implement, and provides good ergonomics.

[0027] According to an advantageous feature of this application, the light source is powered by a power supply voltage of less than 24V.

[0028] This feature allows for the provision of light sources that are not dangerous to users.

[0029] According to an advantageous feature of this application, the light source comprises at least one series of LEDs.

[0030] This series of LEDs offers the advantage of providing high luminous flux with low power consumption. Furthermore, these LEDs generate very little heat, thus eliminating the risk of overheating the deflector.

[0031] According to an advantageous feature of this application, the fan includes different types of deflectors that can be interchanged on the lighting frame.

[0032] This feature allows users to select deflectors with their desired shape and color to use the fan as a decorative item.

[0033] According to an advantageous feature of this application, the deflector is made of a translucent or opaque plastic material, and the front wall advantageously includes an opening forming a decorative pattern.

[0034] According to an advantageous feature of this application, the front wall of the deflector is a curved disc shape.

[0035] According to an advantageous feature of this application, the front wall of the deflector is truncated cone-shaped. Attached Figure Description

[0036] The purpose, aspects, and advantages of this application can be better understood from the following description of specific embodiments of the application, presented as non-limiting examples, with reference to the accompanying drawings, in which:

[0037] Figure 1 This is a front view of a fan equipped with a lighting device according to a specific embodiment of this application, the lighting device being shown in a configuration without a central cover;

[0038] Figure 2 It does not have Figure 1 A perspective view of the lighting device positioned with a fan head having a central cover;

[0039] Figure 3 This is a perspective view of the fan head and lighting device shown in an exploded manner;

[0040] Figure 4 This is a cross-sectional view of the fan head, with the lighting unit shown in an exploded view;

[0041] Figure 5 It is a cross-sectional view of a fan head equipped with lighting and in a configuration without a central cover;

[0042] Figure 6 It is equipped with Figure 1 A perspective view of the lighting device positioned with a fan head having a central cover;

[0043] Figure 7 It is a three-dimensional diagram of different types of deflectors and different types of covers that can be equipped for lighting devices.

[0044] Only those elements necessary for understanding this application are shown. For ease of reading the drawings, the same elements are indicated by the same reference numerals in different figures. Detailed Implementation

[0045] It should be noted that in this document, the terms "horizontal," "vertical," "lower," "upper," "high," "lower," "front," "rear," "longitudinal," and "lateral" used to describe the fan refer to the state when the device is in use, with the fan placed flat on the base and the fan impeller axis set horizontally.

[0046] Figure 1 A household appliance of the type of fan shown on a base 1 includes a base 1 for placing on a flat surface (such as the ground or a table) and a fan head 2 supported by said base 1.

[0047] according to Figures 2 to 5 The fan head 2 includes an impeller 3 surrounded by a protective grille 6. The impeller 3 is driven to rotate by a motor 4 disposed within a housing 5, which is pivotally mounted on a base 1 via a hinge 50. The output shaft of the motor 4 passes through the longitudinal front end of the housing 5, and the impeller 3 is secured to the end of the output shaft. Advantageously, the fan is provided with a heating element (e.g., a heating resistor, not shown in the figure), which is swept by the airflow generated by the impeller 3, thereby allowing it to be used for heating the room.

[0048] The protective grille 6 includes a rear grille 60, a front grille 61, and an annular fastening flange 7 that secures the front grille 61 and the rear grille 60 together. The rear grille 60 and the front grille 61 define a cage in which the impeller 3 is disposed. The rear grille 60 is fastened to the longitudinal front end of the housing 5 and includes a central portion extending rearward of the impeller 3 and a peripheral portion extending around the periphery of the impeller 3. The front end of the peripheral portion of the rear grille 60 defines a circular opening, which is closed by the front grille 61, which is fastened to the rear grille 60 by the annular fastening flange 7. The front grille 61 advantageously has a curved surface and includes a side plate 62 at its center facing the hub of the impeller 3 to shield the hub.

[0049] The fastening flange 7 is advantageously made of metal or plastic and includes a cutout 70 at a certain location on its periphery, thereby allowing the fastening flange 7 to deform so that it can be removed from the rear grille 60 when the user manually pulls on both sides of the cutout 70. The fastening flange 7 advantageously includes fastening studs 71, 72 on both sides of the cutout 70, with a spring (not shown) installed between these two studs, which tends to bring the two edges of the fastening flange 7 closer together.

[0050] according to Figures 3 to 5 The device includes an illumination unit 8 mounted on the protective grille 6 of the fan. The illumination unit 8 is advantageously in the form of a detachable illumination kit 8, comprising an annular illumination frame 80 supporting at least one light source 81. Preferably, the light source 81 is powered by a wire 82 extending from one side of the illumination frame 80, with its free end having a plug 83 for engaging with a power connector 20 carried by the fan head 2. The power connector 20 is advantageously located near the protective grille 6 and connected to a low-voltage transformer integrated into the fan housing 5. This transformer is powered independently of the motor 4 and connected to the fan's electrical grid, providing a DC current of 12V to the connector 20.

[0051] The lighting frame 80 is detachably fastened to the periphery of the fastening flange 7, and its diameter is advantageously between 40 cm and 60 cm. The lighting frame 80 can be held to the fastening flange, for example, by magnetic attraction, by clamping, or by friction. Therefore, the lighting frame 80 may include a magnet that mates with a metal part of the fastening flange 7 to ensure that the lighting frame 80 is magnetically held to the fastening flange 7. In an alternative embodiment, the lighting frame 80 may be provided with a plurality of fastening clips for resiliently engaging with the fastening flange 7 to ensure that the lighting frame 80 is held to the fastening flange 7.

[0052] The lighting device 8 advantageously includes a deflector 84, which is detachably mounted on the lighting frame 80 and has the function of diffusing and / or reflecting light emitted from the lighting frame 80. The deflector 84 includes a front wall 84A extending in front of the front grille 61, which advantageously matches the curvature of the front grille 61. The front wall 84A has a central opening 84C, which is centered relative to the axis of rotation of the impeller 3 and has a diameter slightly smaller than that of the impeller 3.

[0053] Preferably, the front wall 84A of the deflector 84 extends radially from the outer edge of the front grille 61 by a distance less than 30% of the radius of the front grille 61, so that the radius of the central opening 84C is at least 70% of the radius of the protective grille 6.

[0054] The front wall 84A of the deflector 84 is located in front of the lighting frame 80 and extends a hoop 84B around its periphery, which engages around the lighting frame 80. The hoop 84B advantageously includes a fastening clip (not visible in the figure) for resiliently engaging with the lighting frame 80 to ensure that the deflector 84 is held securely to the lighting frame 80. In an alternative embodiment, the hoop 84B may include a metal insert that engages with a magnet carried by the lighting frame 80 to ensure that the deflector 84 is magnetically held to the lighting frame 80.

[0055] The light source 81 is advantageously positioned on the lighting frame 80, such that light from the light source 81 is emitted from the front of the lighting frame 80 and illuminates the front wall 84A of the deflector 84.

[0056] For example, the light source 81 includes at least one LED, which is supplied with a 12V voltage by a power line. Preferably, the light source 81 includes a plurality of LEDs regularly distributed around the entire periphery of the lighting frame 80 and disposed in recesses formed on the front side of the lighting frame 80.

[0057] The front wall 84A of the deflector 84 is preferably made of a translucent material that diffuses the light emitted by the light source 81. Figure 7 In the alternative embodiment shown, the deflector 84 may also have an opening 84D for light to pass through, and may be made of, for example, an opaque material.

[0058] For example, the front wall 84A of the deflector 84 may be made of a white translucent plastic material, and the LED emits colored light. Preferably, the LED is controlled by an electronic circuit board, which is advantageously embedded in the lighting frame 80. This electronic circuit board is controlled by a remote control or by means of a dedicated application on a smartphone, allowing the user to select the lighting color from a variety of possible colors and change the lighting intensity.

[0059] In an alternative embodiment of this application, the lighting device 8 includes a plurality of deflectors 84 of different shapes and / or colors, which can be detachably mounted on the lighting frame 80. This allows the user to select the deflector 84 of the desired shape and / or color to achieve the desired lighting effect.

[0060] Preferably, the lighting device 8 further includes one or more covers 85 for closing the central opening 84C formed at the center of the deflector 84. Figure 3 , Figure 4 and Figure 6 As shown, the cover 85 is advantageously a curved disc shape, the curvature of which matches the shape of the front grille 61. The cover 85 is preferably held in place on the protective grille 6 by being clamped between the lighting ring and the deflector 84. In an alternative embodiment, the cover 85 may be fastened to the deflector 84 by a fastening clip or by magnetic attraction.

[0061] like Figure 7 As shown, the one or more lids 85 may also have openings 85A forming a decorative pattern, allowing slight airflow. Therefore, the lids 85 may include circular openings 85A of different sizes (preferably less than 10 cm in diameter), and / or arc-shaped or various geometric slits.

[0062] The aforementioned fan can certainly be used without the lighting device 8, such as a conventional fan, to generate cool or hot airflow toward the user, but it has the advantage of being able to be used in conjunction with the lighting device 8, allowing the fan to be transformed into a lighting system that can provide ambient light of different colors and intensities according to the user's selection.

[0063] To do this, the user simply needs to install the lighting ring on the fastening flange 7 of the protective grille 6, insert the power cord into the connector 20 of the fan housing 5, and then install one of the deflectors provided with the lighting unit 8, such as... Figure 1 and Figure 5 As shown. Users select deflector 84 based on its color and pattern to achieve the desired decorative effect.

[0064] Users can turn on the lighting ring using a remote control, which also allows users to select the color and intensity of the light emitted by the ring.

[0065] The lighting device 8 can also be used in a configuration with a cover 85, such as... Figure 6As shown, this configuration allows for maximum light diffusion of the lighting device 8, especially when the cover 85 is made of a translucent material. In this configuration, the fan motor 4 can be turned off, thus using only the light generated by the device, or the motor 4 can be turned on to generate an airflow that diffuses towards the rear and periphery of the fan by bouncing on the cover 85. The use of this fan with the cover 85 is particularly useful when the fan is used to heat a room in heating mode, as it prevents the hot airflow from becoming too concentrated in one direction, which could be unpleasant for the user.

[0066] Ventilation devices manufactured in this way have the advantage of providing both ventilation and lighting functions, which allows for a significant increase in the usability of such devices, especially during periods outside of summer.

[0067] Of course, this application is by no means limited to the embodiments described and illustrated above, which are given only as examples. In particular, some modifications may be made in the configuration of various elements or by substitution with equivalent technologies, which do not depart from the protection scope of this application.

[0068] Therefore, in an alternative embodiment not shown, the lighting frame may be wire-free and may contain an embedded battery to ensure power supply to the light source.

[0069] Therefore, in an alternative embodiment not shown, the deflector may be integrated with the cover and extend across the entire surface of the front grille.

[0070] Of course, this application is by no means limited to the embodiments described and illustrated above, which are given only as examples. In particular, some modifications may be made in the configuration of various elements or by substitution with equivalent technologies, which do not depart from the protection scope of this application.

[0071] Therefore, in an alternative embodiment not shown, the lighting frame may be wire-free and may contain an embedded battery to ensure power supply to the light source.

Claims

1. A household fan comprising an electric motor (4), an impeller (3) driven to rotate by said motor (4), and a protective grille (6) disposed around said impeller (3), said protective grille (6) comprising a rear grille (60) and a front grille (61), said rear grille (60) and front grille (61) defining a shroud surrounding said impeller (3), said fan comprising an illumination frame (80) supporting at least one light source (81) disposed around said protective grille (6), characterized in that, It includes a deflector (84) facing the lighting frame (80), and the deflector (84) covering at least a portion of the periphery of the front grille (61) and at least partially covering the surface of the front grille (61) swept by the blades of the impeller (3). The deflector (84) reflects and / or diffuses light emitted from the lighting frame (80). The lighting frame (80) and the deflector (84) form an assembly detachably fastened to the protective grille (6). 84) includes a front wall (84A) extending in front of the lighting frame (80) for diffusing and / or reflecting light emitted by the lighting frame (80), the lighting frame (80) being annular, and the outer diameter of the front wall (84A) of the deflector (84) corresponding to the outer diameter of the lighting frame (80), the front wall (84A) extending from the periphery of the lighting frame (80) toward the center of the impeller (3), at least partially covering the surface of the protective grille (6) swept by the blades of the impeller (3).

2. The household fan according to claim 1, characterized in that, The deflector (84) includes a central opening (84C) that allows airflow generated by the impeller (3) to pass through.

3. The household fan according to claim 2, characterized in that, It includes a cover (85) that is detachably mounted on the lighting frame (80) and / or the deflector (84), the cover (85) closing the central opening (84C) of the deflector (84).

4. The household fan according to any one of claims 1 to 3, characterized in that, The lighting frame (80) is fastened to the protective grille (6) by clamping elements or magnetic components.

5. The household fan according to any one of claims 1 to 3, characterized in that, The lighting frame (80) is powered by a wire (82) which includes at least one portion extending outside the lighting frame (80) and has a plug (83) that allows it to be connected to a current source.

6. The household fan according to claim 5, characterized in that, The household fan includes a base (1) and a fan head (2) supported by the base (1), the fan head (2) enclosing the motor (4) and supporting the protective grille (6), the base (1) and / or the fan head (2) including a power connector (20) that cooperates with the plug (83) to supply power to the lighting frame (80).

7. The household fan according to any one of claims 1 to 3, characterized in that, The light source (81) is powered by a power supply voltage of less than 24V.

8. The household fan according to any one of claims 1 to 3, characterized in that, The light source (81) includes at least one series of LEDs.

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