A device with an air duct

Abstract

The present invention provides a device with an air duct, comprising: an air duct structure, having an air duct, and being provided with an air inlet and an air outlet connected to the air duct; a fan assembly, wherein the cavity wall of the air duct provided with the air inlet is an air inlet cavity wall, and the fan assembly is installed on a cavity wall of the air duct adjacent to or opposite to the air inlet cavity wall, and comprises a motor and a fan blade fixedly installed on the motor shaft of the motor, and at least the fan blade is located in the air duct. Since the fan assembly is installed on a cavity wall of the air duct adjacent to or opposite to the air inlet cavity wall, and the fan blade of the fan assembly is located in the air duct, the installation position of the fan assembly will not affect the air intake, and can ensure smooth air intake and air intake volume.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a device with an air duct. Background Art

[0002] The heater is composed of a shell, a fan assembly, and a heating element assembly. The fan assembly is located behind the heating element assembly. The fan assembly provides power and is composed of a motor, fan blades, etc. The motor is generally installed on the rear shell or the lower shell. In the prior art, the fan assembly is usually installed on the inner side of the air inlet of the air duct. The screw columns for fixing it affect the smoothness of the air intake and reduce the air intake area, thereby reducing the air volume of the whole machine and generating noise. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the fan assembly of the heater is installed at the air inlet, which affects the air intake, thereby providing a device with an air duct that ensures smooth air intake and a large amount of air intake.

[0004] In order to solve the above technical problems, the present invention provides a device with an air duct, comprising:

[0005] An air duct structure, comprising an air duct and being provided with an air inlet and an air outlet communicating with the air duct;

[0006] A fan assembly, wherein the cavity wall of the air duct having an air inlet is the air inlet cavity wall, and the fan assembly is installed on the cavity wall of the air duct adjacent to or opposite to the air inlet cavity wall, and comprises a motor and a fan blade fixedly installed on the motor shaft of the motor, and at least the fan blade is located in the air duct.

[0007] The fan assembly is installed on the cavity wall of the air duct opposite to the air inlet cavity wall.

[0008] The cavity wall opposite to the air inlet cavity wall is an air duct cover. The air duct structure includes a body and the air duct cover installed on the body. The fan assembly is installed on the air duct cover.

[0009] The motor is fixed on the air duct cover and is located in the air duct.

[0010] The air duct cover is provided with a limiting surface for limiting the circumferential direction of the motor.

[0011] The motor has a first step structure outside, the air duct cover is provided with a supporting surface supporting the upper surface of the first step structure, and the limiting surface and the supporting surface form a second step structure.

[0012] A reinforcing rib structure is provided on the upper side of the air duct cover.

[0013] The reinforcing rib structure comprises at least two intersecting reinforcing rib grooves, and at least one first reinforcing rib is arranged in the reinforcing rib groove.

[0014] At least two intersecting first reinforcing ribs are arranged in the reinforcing rib groove.

[0015] The first reinforcing rib is arranged obliquely in the reinforcing rib groove.

[0016] The reinforcing rib grooves are provided with two, namely a first groove and a second groove intersecting vertically, and the first reinforcing ribs are respectively arranged in the first groove and the second groove.

[0017] At least two obliquely crossed second reinforcing ribs are provided at the intersection of the first groove and the second groove, and one end of each of the second reinforcing ribs is connected to a groove wall of the first groove, and the other end is connected to the other side wall of the first groove.

[0018] At least two fixing holes suitable for fixing with fasteners are arranged on the bottom of the second groove, a third reinforcing rib is arranged between the two fixing holes, and the third reinforcing rib crosses the second reinforcing rib.

[0019] The air duct cover is provided with a rib surrounding the top of the air duct structure, and the rib protrudes out of the air duct cover body.

[0020] A plurality of through holes suitable for motor outlets are provided on the air duct cover near the center of the air duct cover, and each of the through holes is located between the first slot and the second slot.

[0021] A wiring groove suitable for wiring is provided on the upper side of the air duct cover.

[0022] The air inlet is arranged at the bottom of the air duct structure.

[0023] The main body includes a plurality of wall panels connected in sequence and arranged on the bottom shell, wherein the wall panels are the side cavity walls of the air duct, and the air duct cover is arranged on the upper side of the wall panels. The main body has a side opening, and the air outlet is at the side opening. An air inlet grille is provided on the bottom shell, and the air inlet grille is the air inlet of the air duct structure.

[0024] The body comprises two vertical wall plates vertically arranged on the bottom shell, and a plurality of arc-shaped wall plates connected at the same end of the two vertical wall plates, and the other ends of the two vertical wall plates form the air outlet.

[0025] The body and the bottom shell are integrally formed.

[0026] The device with the air duct is a heater, and the heating element assembly is installed at the air outlet.

[0027] The technical solution of the present invention has the following advantages:

[0028] 1. The present invention provides a device with an air duct. Since the fan assembly is installed on the cavity wall adjacent to or opposite to the air inlet cavity wall of the air duct, and the fan blades of the fan assembly are located in the air duct, the installation position of the fan assembly will not affect the air intake, and the smooth air intake and air intake volume can be ensured.

[0029] 2. The present invention provides a device with an air duct, wherein the fan assembly is installed on the cavity wall of the air duct opposite to the air inlet cavity wall, which neither affects the air intake nor the flow of wind in the air duct.

[0030] 3. The present invention provides a device with an air duct, wherein the cavity wall opposite to the air inlet cavity wall is an air duct cover, the air duct structure includes a main body and the air duct cover installed on the main body, and the fan assembly is installed on the air duct cover. During installation, the fan assembly is first installed on the air duct cover, and then the air duct cover is installed, so as to facilitate the fixed installation of the fan assembly.

[0031] 4. The present invention provides a device with an air duct, wherein the motor is fixed on the air duct cover and is located in the air duct, which is beneficial to fully utilizing the space in the air duct and improving space utilization.

[0032] 5. The present invention provides a device with an air duct, wherein the air duct cover is provided with a limiting surface for limiting the circumferential direction of the motor, so as to prevent the motor from moving in the circumferential direction when the motor is installed on the air duct cover, thereby preventing the motor from being unfavorable for installation.

[0033] 6. The present invention provides a device with an air duct, wherein the motor has a first step structure on the outside, and the air duct cover is provided with a supporting surface that supports the upper surface of the first step structure, and the limiting surface and the supporting surface form a second step structure. When the motor is installed on the air duct cover, the supporting surface supports the motor, and the limiting surface and the supporting surface cooperate to limit the position of the motor, thereby facilitating the installation and fixation of the motor.

[0034] 7. The present invention provides a device with an air duct, wherein a reinforcing rib structure is provided on the upper side of the air duct cover to ensure the supporting strength of the air duct cover.

[0035] 8. The present invention provides a device with an air duct, wherein the reinforcing rib structure includes at least two intersecting reinforcing rib grooves, and at least one first reinforcing rib is provided in the reinforcing rib groove, which increases the strength of the air duct cover and prevents the air duct cover from twisting and deforming when the motor rotates.

[0036] 9. In a device with an air duct provided by the present invention, at least two intersecting first reinforcing ribs are arranged in the reinforcing rib groove, thereby enhancing the torsional resistance of the air duct cover.

[0037] 10. In a device with an air duct provided by the present invention, the first reinforcing rib is arranged obliquely in the reinforcing rib groove, which effectively ensures the torsional resistance of the air duct cover.

[0038] 11. The present invention provides a device with an air duct, wherein two reinforcing rib grooves are provided, namely a first groove and a second groove intersecting vertically, and the first reinforcing ribs are respectively arranged in the first groove and the second groove, thereby ensuring the strength and torsional resistance of the air duct cover.

[0039] 12. The present invention provides a device with an air duct, wherein at least two inclined and crossed second reinforcing ribs are provided at the intersection of the first groove and the second groove, and one end of each of the second reinforcing ribs is connected to a groove wall of the first groove, and the other end is connected to the other side wall of the first groove, so as to avoid twisting and deformation of the first groove and the second groove, thereby ensuring the torsional resistance of the air duct cover.

[0040] 13. The present invention provides a device with an air duct, wherein at least two fixing holes suitable for fasteners are provided on the bottom of the second groove, and a third reinforcing rib is provided between the two fixing holes, and the third reinforcing rib crosses the second reinforcing rib, thereby further enhancing the torsional resistance of the air duct cover.

[0041] 14. The present invention provides a device with an air duct, wherein the air duct cover is provided with ribs surrounding the top end of the air duct structure, and the ribs protrude from the air duct cover body. The air duct cover is an injection molded part. The provision of the ribs enhances the strength of the air duct cover on the one hand, and on the other hand, after the air duct cover is installed on the air duct structure, the ribs surround the outer side of the top end of the air duct structure, and the ribs position the installation of the air duct cover.

[0042] 15. The present invention provides a device with an air duct, wherein a plurality of through holes suitable for motor lead-out are provided on the air duct cover near the center of the air duct cover, and each of the through holes is located between the first slot and the second slot, so that the structure is compact and convenient for leading out the motor.

[0043] 16. The present invention provides a device with an air duct, wherein the upper side of the air duct cover is provided with a wiring groove suitable for wiring, and the motor wires are arranged neatly.

[0044] 17. The present invention provides a device with an air duct, wherein the air inlet is arranged at the bottom of the air duct structure, and the air inlet is hidden at the bottom of the air duct structure, so that the structure is more beautiful.

[0045] 18. The present invention provides a device with an air duct, wherein the main body includes a plurality of wall panels connected in sequence and arranged on a bottom shell, wherein the wall panels are side cavity walls of the air duct, and the air duct cover is arranged on the upper side of the wall panels. The main body has a side opening, and the air outlet is at the side opening. An air inlet grille is provided on the bottom shell, and the air inlet grille is the air inlet of the air duct structure. The structure of the air duct structure is simple.

[0046] 19. The present invention provides a device with an air duct, wherein the main body includes two vertical wall panels vertically arranged on the bottom shell, and a plurality of arc-shaped wall panels connected at the same end of the two vertical wall panels, and the other ends of the two vertical wall panels form the air outlet. Such an arrangement enables the air duct in the wall panel to have a larger volume and to accommodate a larger amount of air.

[0047] 20. The present invention provides a device with an air duct, wherein the main body and the bottom shell are integrally formed, and the processing is convenient.

[0048] 21. The present invention provides a device with an air duct, wherein the device with an air duct is a heater, and the heating element assembly is installed at the air outlet. The heater has smooth air intake and sufficient air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 An exploded view of a device with an air duct provided in a first embodiment of the present invention;

[0051] Figure 2 for Figure 1 A schematic diagram of the structure of a device with an air duct after assembly is shown;

[0052] Figure 3 for Figure 2 A cross-sectional view of

[0053] Figure 4 for Figure 2 A cross-sectional view from another angle;

[0054] Figure 5 for Figure 1 A cross-sectional view of an air duct cover;

[0055] Figure 6 for Figure 5 A top view of

[0056] Description of reference numerals:

[0057] 1-bottom shell; 2-air inlet grille; 3-vertical wall panel; 4-arc wall panel; 5-air duct cover; 51-limiting surface; 52-supporting surface; 53-surrounding rib; 54-wiring groove; 55-through hole; 56-first groove; 57-second groove; 581-first reinforcing rib; 582-second reinforcing rib; 583-third reinforcing rib; 59-fixing hole; 6-motor; 61-motor shaft; 62-first step structure; 7-fan blade; 8-nut; 9-fastener. DETAILED DESCRIPTION

[0058] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] This embodiment provides a device with an air duct, such as Figures 1 to 6 , including air duct structure and fan components.

[0063] Among them, the air duct structure has an air duct, and is provided with an air inlet and an air outlet connected to the air duct. The air inlet is arranged at the bottom of the air duct structure, and the cavity wall of the air duct with the air inlet is the air inlet cavity wall, and the fan assembly is installed on the cavity wall opposite to the air inlet cavity wall.

[0064] The air duct structure of this embodiment includes a body and an air duct cover 5 installed on the body. The body includes a plurality of wall panels arranged on the bottom shell 1 and connected in sequence, the wall panels are the side cavity walls of the air duct, the air duct cover 5 is covered on the upper side of the wall panels, the body has a side opening, and the air outlet is at the side opening, the bottom shell 1 is provided with an air inlet grille 2, and the air inlet grille 2 is the air inlet of the air duct structure. As shown in the figure, the body includes two vertical wall panels 3 arranged vertically on the bottom shell 1, and a plurality of arc-shaped wall panels 4 connected to the same end of the two vertical wall panels 3, and the other ends of the two vertical wall panels 3 form the air outlet.

[0065] During processing, the main body and the bottom shell 1 are integrally formed.

[0066] The fan assembly includes a motor 6 and a fan blade 7 fixedly mounted on a motor shaft 61 of the motor 6. The fan assembly is mounted on the air duct cover 5. In this embodiment, the motor 6 is fixedly mounted on the air duct cover 5 and is located in the air duct, and the fan blade 7 is also located in the air duct. Of course, in an alternative embodiment, the motor 6 can be mounted outside the air duct, and the motor shaft 61 of the motor 6 can be extended into the air duct so that the fan blade 7 is located in the air duct.

[0067] The air duct cover 5 of this embodiment is an injection molded part, and the motor 6 is fixed to the air duct cover 5 by a fastener 9. In an alternative embodiment, the air duct cover 5 is a sheet metal part, and the motor 6 is fixed to the air duct cover 5 by welding.

[0068] like Figure 3 As shown, the air duct cover 5 is provided with a limiting surface 51 for limiting the circumferential direction of the motor 6, so as to prevent the motor 6 from moving in the circumferential direction when the motor 6 is installed on the air duct cover 5, which is not conducive to installation. The motor 6 has a first step structure 62 on the outside, and the air duct cover 5 is provided with a supporting surface 52 for supporting the upper surface of the first step structure 62. The limiting surface 51 and the supporting surface 52 form a second step structure. When the motor 6 is installed on the air duct cover 5, the supporting surface 52 supports the motor 6, and the limiting surface 51 cooperates with the supporting surface 52 to limit the position of the motor 6, so as to facilitate the installation and fixation of the motor 6.

[0069] In order to ensure the strength of the air duct cover 5, a reinforcing rib structure is provided on the upper side of the air duct cover 5. Figure 6As shown, the reinforcing rib structure includes two intersecting reinforcing rib grooves, specifically two first grooves 56 and second grooves 57 that intersect vertically in a cross shape, and at least one first reinforcing rib 581 is provided in each reinforcing rib groove. Specifically, at least two intersecting first reinforcing ribs are provided in the reinforcing rib groove. In this embodiment, a plurality of first reinforcing ribs 581 are provided, and each first reinforcing rib 581 is arranged obliquely in the reinforcing rib groove. At least two obliquely intersecting second reinforcing ribs 582 are provided at the intersection of the first groove 56 and the second groove 57, and one end of each second reinforcing rib 582 is connected to a groove wall of the first groove 56, and the other end is connected to the other side wall of the first groove 56. At least two fixing holes 59 suitable for fixing with fasteners 9 are provided on the groove bottom of the second groove 57, and a third reinforcing rib 583 is provided between the two fixing holes 59, and the third reinforcing rib 583 intersects with the second reinforcing rib 582. This structure of the reinforcing rib can effectively prevent the air duct cover 5 from twisting and deformation, thereby ensuring the torsion resistance of the air duct cover 5.

[0070] The air duct cover 5 is provided with a rib 53 surrounding the top of the air duct structure, and the rib 53 protrudes from the body of the air duct cover 5. The air duct cover 5 of this embodiment is an injection molded part. The rib 53 is provided to enhance the strength of the air duct cover 5 on the one hand, and on the other hand, after the air duct cover 5 is installed on the air duct structure, the rib 53 surrounds the outer side of the top of the air duct structure, and the rib 53 positions the installation of the air duct cover 5.

[0071] The air duct cover 5 is provided with a plurality of through holes 55 near the center of the air duct cover 5 suitable for the motor 6 to output the wires, and each of the through holes 55 is located between the first slot 56 and the second slot 57, which is compact in structure and convenient for outputting the wires of the motor 6. The upper side of the air duct cover 5 is provided with a wiring groove 54 suitable for wiring, and the wiring of the motor 6 is neat.

[0072] The device with the air duct assembly in this embodiment is a heater, and the heating element assembly is installed at the air outlet.

[0073] When installing the device with the air duct assembly, the air duct cover 5 is turned over first, that is, the side of the air duct cover 5 that serves as the air duct cavity wall faces upward, and the motor 6 is fixed to the air duct cover 5 by the fastener 9. During the installation process, the limiting surface 51 and the supporting surface 52 on the air duct cover 5 support and limit the position of the motor 6, and then the fan blade 7 is fixed on the motor shaft 61, and then the nut 8 is fixed on the motor shaft 61 to limit the position of the fan blade 7. Then the air duct cover 5 is installed on the body of the air duct structure.

[0074] As a first alternative implementation of the above embodiment, the air duct cover 5 is not provided, and the air duct assembly is directly installed on the top cavity wall opposite to the air inlet cavity wall.

[0075] As a second alternative implementation of the above embodiment, the air inlet is arranged on the side of the air duct structure, and the fan assembly is installed on the side cavity wall opposite to the air inlet cavity wall.

[0076] As a third alternative implementation of the above embodiment, the air inlet is arranged at the bottom of the air duct structure, and the fan assembly is installed on the side cavity wall adjacent to the air inlet cavity wall.

[0077] As a fourth alternative implementation of the above embodiment, the air outlet is arranged on the air duct cover 5, and the fan assembly is an axial flow fan.

[0078] As a fifth alternative implementation of the above embodiment, the reinforcing rib structure includes four intersecting reinforcing rib grooves, and the four reinforcing rib grooves intersect in a cross shape. At least one first reinforcing rib 581 is provided in each reinforcing rib groove.

[0079] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A device having an air duct, characterized in that: include: An air duct structure, comprising an air duct and being provided with an air inlet and an air outlet communicating with the air duct; A fan assembly, wherein the cavity wall of the air duct provided with an air inlet is the air inlet cavity wall, the fan assembly is installed on the cavity wall of the air duct adjacent to or opposite to the air inlet cavity wall, and comprises a motor (6) and a fan blade (7) fixedly mounted on a motor shaft (61) of the motor (6), at least the fan blade (7) is located in the air duct, the cavity wall opposite to the air inlet cavity wall is the air duct cover (5), the air duct structure comprises a body and the air duct cover (5) mounted on the body, the body comprises a plurality of wall panels arranged on a bottom shell (1) and connected in sequence, the wall panels are the side cavity walls of the air duct, the air duct cover (5) is arranged on the upper side of the wall panels, the body has a side opening, and the air outlet is at the side opening, the bottom shell (1) is provided with an air inlet grille (2), the air inlet grille (2) is the air inlet of the air duct structure, the body comprises two vertically arranged on the bottom shell (1) A wall panel (3), and a plurality of arc-shaped wall panels (4) connected at the same end of the two vertical wall panels (3), the other ends of the two vertical wall panels (3) forming the air outlet, a reinforcing rib structure being provided on the upper side of the air duct cover (5), the reinforcing rib structure comprising at least two intersecting reinforcing rib grooves, at least one first reinforcing rib (581) being provided in the reinforcing rib groove, two reinforcing rib grooves being provided, namely a first groove (56) and a second groove (57) intersecting vertically, the first reinforcing rib (581) being provided in the first groove (56) and the second groove (57), respectively, at least two obliquely intersecting second reinforcing ribs (582) being provided at the intersection of the first groove (56) and the second groove (57), one end of each of the second reinforcing ribs (582) being connected to one groove wall of the first groove (56), and the other end being connected to the other side wall of the first groove (56).

2. The device with an air duct according to claim 1, characterized in that: The fan assembly is installed on the cavity wall of the air duct opposite to the air inlet cavity wall.

3. The device with an air duct according to claim 1, characterized in that: The fan assembly is mounted on the air duct cover (5).

4. The device with an air duct according to claim 3, characterized in that: The motor (6) is fixed on the air duct cover (5) and is located in the air duct.

5. The device with an air duct according to claim 3, characterized in that: The air duct cover (5) is provided with a limiting surface (51) for limiting the circumferential direction of the motor (6).

6. The device with an air duct according to claim 5, characterized in that: The motor (6) has a first step structure (62) on the outside, the air duct cover (5) is provided with a support surface (52) supported on the upper surface of the first step structure (62), and the limiting surface (51) and the support surface (52) form a second step structure.

7. The device with an air duct according to claim 1, characterized in that: At least two intersecting first reinforcing ribs (581) are provided in the reinforcing rib groove.

8. The device with an air duct according to claim 7, characterized in that: The first reinforcing rib (581) is arranged obliquely in the reinforcing rib groove.

9. The device with an air duct according to claim 1, characterized in that: At least two fixing holes (59) suitable for fixing the fastener (9) are provided on the bottom of the second groove (57), and a third reinforcing rib (583) is provided between the two fixing holes (59), and the third reinforcing rib (583) intersects with the second reinforcing rib (582).

10. The device with an air duct according to claim 3, characterized in that: The air duct cover (5) is provided with a rib (53) surrounding the top end of the air duct structure, and the rib (53) is arranged protruding from the main body of the air duct cover (5).

11. The device with an air duct according to claim 1, characterized in that: A plurality of through holes (55) suitable for output wires of the motor (6) are provided on the air duct cover (5) near the center of the air duct cover (5), and each of the through holes (55) is located between the first slot (56) and the second slot (57).

12. The device with an air duct according to claim 3, characterized in that: A wiring groove (54) suitable for wiring is provided on the upper side of the air duct cover (5).

13. The device with an air duct according to claim 1, characterized in that: The air inlet is arranged at the bottom of the air duct structure.

14. The device with an air duct according to claim 1, characterized in that: The main body and the bottom shell (1) are integrally formed.

15. A device with an air duct according to any one of claims 1 to 14, characterized in that: The device with the air duct is a heater, and the heating element assembly is installed at the air outlet.

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