Air circulation fan

Abstract

The utility model relates to an air circulation fan which comprises a base, a stand column arranged on the base and a head portion, and the head portion can swing or rotate relative to the base. The head part comprises a housing with an air inlet part and an air outlet part, and fan blades positioned in the housing; the number of the air inlet parts is at least two, and at least one of the air inlet parts is opposite to the air inlet parts and located on the air inlet side and the air outlet side of the fan blade respectively. At least two air inlet areas are arranged on the side, opposite to the air outlet part, of the air inlet part, and the two air inlet areas are provided with different air guide paths. Compared with the prior art, the circulating fan has the advantages that the second air inlet portion is arranged on the side wall of the housing to supplement the air inlet portion on the rear side, airflow entering the housing is increased, the requirement for air outlet of the whole front end face is met, and large-air-volume air outlet of the circulating fan is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, and in particular to an air circulator fan. Background Technology

[0002] The main function of an air circulator is to create convection circulation of indoor air, achieving a balanced temperature through a reasonable airflow direction. Circulators differ structurally from the most common fans, primarily in that they have a larger airflow capacity. This is because they employ axial fan blades, and during operation, air can be drawn in radially and axially from the rear grille with grilles or mesh openings behind the axial fan blades to maintain sufficient airflow, thus achieving a longer air delivery distance. For example, patent CN205744541U discloses "an easily assembled circulator fan," which includes a front grille and a snap-fit ​​rear grille. This structural design allows the airflow from the fan blades to be directly delivered through the front grille, resulting in a shorter airflow duct and a more diffused airflow, thus reducing the delivery distance.

[0003] However, existing air circulators typically use an airflow path that draws in air from the rear and exhausts it from the front, resulting in limited airflow and low air circulation efficiency. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, this utility model provides an air circulation fan.

[0005] The above-mentioned problems of this utility model are solved by the following technical solution:

[0006] An air circulator fan includes a base, a column disposed on the base, and a head, the head being capable of swinging or rotating relative to the base;

[0007] The head includes a housing with an air inlet and an air outlet, and a fan blade located inside the housing.

[0008] The air inlet has at least two parts, and at least one of them is arranged opposite to the air inlet, located on the air inlet side and air outlet side of the fan blade, respectively.

[0009] The air inlet section on the side opposite to the air outlet section has at least two air inlet areas, and the two air inlet areas have different air guiding paths.

[0010] A further provision of the above technical solution is that the housing includes a front cover, a rear cover, and a side panel connecting the front cover and the rear cover;

[0011] The air outlet is located on the front cover, the rear cover has a first air inlet, and the side cover has a second air inlet.

[0012] The first air inlet section is provided with a first air inlet area and a second air inlet area arranged in concentric circles. The airflow introduced through the first air inlet area has a straight path, and the airflow introduced through the second air inlet area has a spiral path.

[0013] The above technical solution is further configured as follows: the first air inlet area is a plurality of first air inlet slots arranged radially around the center on the rear end cover;

[0014] The second air inlet area is separated by a second air inlet grille, which divides the first air inlet area into multiple second air inlet slots arranged radially.

[0015] The second air inlet slot is an arc-shaped slot.

[0016] A further feature of the above technical solution is that the bending direction of the second air inlet groove is consistent with the air guiding direction of the fan blade.

[0017] A further provision of the above technical solution is that a reinforcing rib is provided between the two adjacent second air inlet slots.

[0018] A further provision of the above technical solution is that the second air inlet portion is a plurality of fourth air inlet slots arranged circumferentially on the side panel, and the fourth air inlet slots are located on the side close to the rear end cover.

[0019] A further provision of the above technical solution is that it also includes a third air intake zone, which is located around the second air intake zone, and the third air intake zone and the second air intake zone are arranged in a stepped manner.

[0020] A further provision of the above technical solution is as follows: a Y-shaped bracket is provided on the column, and the head is installed on the bracket; a light groove is provided on the bracket, and the opening of the light groove is closed by a transparent cover.

[0021] A further provision of the above technical solution is that: a hollow groove is provided in the center of the front cover, and the hollow groove is closed by a cover plate; air holes are provided at the bottom of the hollow groove and on the cover plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: the second air inlet is provided on the side of the cover to supplement the air inlet on the rear side, thereby increasing the airflow into the cover to meet the air outlet requirements of the entire front face and realize the large air volume output of the circulating fan. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is an exploded structural diagram of the present invention.

[0025] Figure 3This is a schematic diagram of the overall structure of the head.

[0026] Figure 4 This is a schematic diagram of the rear cover structure.

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the head (the air vents are not shown).

[0028] Figure 6 This is an isometric sectional view of the head.

[0029] Figure 7 This is a schematic diagram of the exploded structure of the stent.

[0030] Figure 8 This is a cross-sectional structural diagram of the present invention (the air vents are not shown).

[0031] The attached image is labeled: 100, base;

[0032] 200. Column;

[0033] 300. Head; 310. Front cover; 320. Rear cover; 330. Side panel; 340. Fan blade; 321. First air inlet slot; 322. Second air inlet grille; 323. Second air inlet slot; 324. Reinforcing rib; 331. Fourth air inlet slot; 325. Third air inlet slot; 301. Empty slot; 350. Cover plate;

[0034] 400, bracket; 401, light trough;

[0035] 500, transparent cover;

[0036] a) First air intake section; a1) First air intake zone; a2) Second air intake zone; a3) Third air intake zone;

[0037] b. Second air intake section;

[0038] c. Air outlet. Detailed Implementation

[0039] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0040] like Figure 1-8 As shown, this embodiment provides an air circulator fan.

[0041] An air circulator fan includes a base 100, a column 200 disposed on the base 100, and a head 300, wherein the head 300 is capable of swinging or rotating relative to the base 100.

[0042] The head 300 includes a housing having an air inlet and an air outlet c, and a fan blade 340 located inside the housing.

[0043] The air inlet has at least two parts, and at least one of them is arranged opposite to the air inlet, located on the air inlet side and air outlet side of the fan blade 340 respectively;

[0044] The air inlet section on the side opposite to the air outlet section c has at least two air inlet areas, and the two air inlet areas have different air guiding paths.

[0045] The above is the basic scheme of this embodiment.

[0046] Specific reference Figure 1 As shown, this embodiment provides a vertical fan, which connects the head 300 and the base 100 through the column 200. The head 300 can rotate or swing relative to the column 200 to achieve multi-directional airflow. The rotation structure and oscillation structure are consistent with the rotation structure and oscillation structure of the existing vertical fan, and will not be described in detail here.

[0047] In this embodiment, the air outlet c is located at the front end of the housing, and the air inlet is located at the rear end and side of the housing. When the fan blade 340 rotates, it drives the air inside the housing to form an airflow, reducing the air pressure inside the housing. External air is replenished to the inside of the housing through the two air inlets, and the airflow is blown out from the front air outlet c, forming a continuous stream of cold air.

[0048] Compared to the prior art which only has an air intake on the rear side, this embodiment adds an air intake on the side to increase the airflow into the housing, thereby increasing the amount of air blown out and realizing the large air volume function of the circulating fan.

[0049] In this embodiment, two air intake zones are set at the rear air intake section, and the air guide paths of the two air intake zones are different, and the positions where they enter the housing are also different. The fan blades 340 drive them in different positions, so that driving airflow can be generated at any position inside the housing to meet the demand for blowing out a large amount of air.

[0050] Specifically, in this embodiment, the cover includes a front cover 310, a rear cover 320, and a side panel 330 connecting the front cover 310 and the rear cover 320.

[0051] The air outlet c is provided on the front cover 310, the rear cover 320 is provided with the first air inlet a, and the side wall 330 is provided with the second air inlet b.

[0052] The first air inlet section a is provided with a first air inlet area a1 and a second air inlet area a2 arranged in concentric circles. The airflow introduced through the first air inlet area a1 has a straight path, and the airflow introduced through the second air inlet area a2 has a spiral path.

[0053] Specific reference Figures 2-4 As shown, the first air inlet area a1 is located in the middle of the rear cover 320 and is arranged around the center; the second air inlet area a2 is located around the first air inlet area a1 and is arranged to surround the second air inlet area a2.

[0054] Preferably, in this embodiment, the position of the first air intake zone a1 corresponds to the position of the hub of the fan blade 340, and the position of the second air intake zone a2 corresponds to the position of the blade of the fan blade 340.

[0055] Unlike ordinary fans, air circulators can blow air out in a spiral shape in a certain direction. As the fan blades churn, they eventually form a spiral column of air. Air circulators can blow air over a longer distance and have better directionality.

[0056] In this embodiment, the airflow introduced through the second air inlet a2 has a spiral path, and the rotation direction of the spiral is consistent with the driving direction of the fan blade 340. Therefore, the airflow that enters the casing through the second air inlet a2 is directly blown out from the air outlet c after being accelerated by the fan blade 340.

[0057] The airflow introduced into the casing through the first air intake zone a1 moves from the center to both sides and forms a spiral airflow under the action of the fan blades 340, which supplements the airflow entering the second air intake zone a2 and increases the amount of air blown out.

[0058] In this embodiment, the first air inlet area a1 is a plurality of first air inlet slots 321 arranged radially around the center on the rear end cover 320;

[0059] The second air inlet zone a2 is separated by the second air inlet grille 322, which divides into multiple second air inlet slots 323 arranged radially around the first air inlet zone a1;

[0060] The second air inlet slot 323 is an arc-shaped slot.

[0061] Preferably, in order to ensure that the airflow direction entering through the second air inlet zone a2 is consistent with the driving direction of the fan blade 340, the bending direction of the second air inlet slot 323 is consistent with the air guiding direction of the fan blade 340.

[0062] Specific reference Figure 3 and Figure 4 As shown, the first air inlet slot 321 is located at the center of the rear end cover 320, and is arranged in a strip shape and arranged radially around the center. The airflow entering through the first air inlet slot 321 is guided in a straight path.

[0063] The second air inlet slot 323 is formed by multiple second air inlet grilles 322, and the second air inlet grilles 322 are arc-shaped strips. Therefore, the second air inlet slot 323 is also arc-shaped, so that the introduced airflow is also arc-shaped. Therefore, when the airflow introduced in the arc direction enters the cover under the drive of the fan blade 340, it forms a spiral airflow and directly merges with the spiral airflow at the fan blade 340. After being accelerated by the fan blade 340, it is blown out from the front cover 310.

[0064] To ensure the stability of the second air inlet grille 322 during air guidance, in this embodiment, a reinforcing rib 324 is provided between the two adjacent second air inlet slots 323.

[0065] The reinforcing rib 324 divides the second air inlet slot 323 into two arc-shaped slots along the radial direction, thereby reducing the impact of a single airflow on the second air inlet grille 322 and reducing the swaying of the second air inlet grille 322 during the air intake process, thus ensuring the stability of the airflow.

[0066] In this embodiment, the second air inlet portion b is a plurality of fourth air inlet slots 331 arranged circumferentially on the side enclosure 330, and the fourth air inlet slots 331 are located on the side close to the rear end cover 320.

[0067] Furthermore, in order to facilitate smoother airflow convergence between the second air intake section b and the first air intake section a, this embodiment also includes a third air intake area a3, which is located around the second air intake area a2, and the third air intake area a3 and the second air intake area a2 are arranged in a stepped manner.

[0068] Specific reference Figure 5 and Figure 6 As shown, in this embodiment, the connection position of the rear cover 320 between the second air inlet area a2 and the third air inlet area a3 is set as a stepped connection, so that the third air inlet area a3 is closer to the inner side of the cover. As a result, the third air inlet area a3 is closer to the fourth air inlet groove 331 on the side wall 330, so that the airflow entering the cover through the third air inlet area a3 and the airflow entering the cover through the fourth air inlet groove 331 can more easily converge, thereby reducing the mutual disturbance between the two airflows and reducing the noise generated when the airflow converges.

[0069] Preferably, in this embodiment, the third air inlet groove 325 of the third air inlet zone a3 is a straight groove arranged radially to ensure that the direction of airflow is controllable during convergence.

[0070] In this embodiment, a Y-shaped bracket 400 is provided on the column 200, and the head 300 is installed on the bracket 400; a light groove 401 is provided on the bracket 400, and the opening of the light groove 401 is closed by a transparent cover 500.

[0071] Specific reference Figure 7 and Figure 8 As shown, the head 300 is installed on the upper end of the Y-shaped bracket 400, and the light groove 401 is recessed at the intersection of the bracket 400. A night light component is installed inside. The opening of the light groove 401 is closed by a transparent cover 500, and the transparent cover 500 is tilted to prevent the light from shining directly on the fan blade 340 and causing light swaying, which would affect the user's comfort.

[0072] In this embodiment, a slot 301 is provided in the center of the front cover 310, and the slot 301 is closed by a cover plate 350; air holes are provided on the bottom of the slot 301 and on the cover plate 350.

[0073] Specific reference Figure 8 The air outlet c is arranged around the empty slot 301. The inner shell of the empty slot 301 is used to place a humidifying component or aromatherapy, etc., and the fragrance or humidifying mist is blown out from the empty slot 301 by airflow.

[0074] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An air circulator fan, comprising a base (100), a column (200) disposed on the base (100), and a head (300), wherein the head (300) is capable of swinging or rotating relative to the base (100); Its features are: The head (300) includes a housing having an air inlet and an air outlet (c), and a fan blade (340) located inside the housing; The air inlet has at least two parts, and at least one of them is arranged opposite to the air inlet, located on the air inlet side and air outlet side of the fan blade (340), respectively. The air inlet section on the side opposite to the air outlet section (c) has at least two air inlet zones, and the two air inlet zones have different air guiding paths.

2. The air circulator fan according to claim 1, characterized in that: The housing includes a front cover (310), a rear cover (320), and a side panel (330) connecting the front cover (310) and the rear cover (320); An air outlet (c) is provided on the front cover (310), a first air inlet (a) is provided on the rear cover (320), and a second air inlet (b) is provided on the side wall (330). The first air inlet section (a) is provided with a first air inlet area (a1) and a second air inlet area (a2) arranged in concentric circles. The airflow introduced through the first air inlet area (a1) has a straight path, and the airflow introduced through the second air inlet area (a2) has a spiral path.

3. The air circulator fan according to claim 2, characterized in that: The first air inlet area (a1) consists of multiple first air inlet slots (321) arranged radially around the center on the rear end cover (320); The second air inlet zone (a2) is separated by the second air inlet grille (322) into multiple second air inlet slots (323) arranged radially around the first air inlet zone (a1); The second air inlet slot (323) is an arc-shaped slot.

4. The air circulator fan according to claim 3, characterized in that: The bending direction of the second air inlet slot (323) is consistent with the air guiding direction of the fan blade (340).

5. The air circulator fan according to claim 3 or 4, characterized in that: A reinforcing rib (324) is provided between the two adjacent second air inlets (323).

6. The air circulator fan according to claim 2, characterized in that: The second air inlet (b) is a plurality of fourth air inlet slots (331) arranged circumferentially on the side enclosure (330), and the fourth air inlet slots (331) are located on the side close to the rear end cover (320).

7. The air circulator fan according to claim 6, characterized in that: It also includes a third air intake zone (a3), which is located around the second air intake zone (a2), and the third air intake zone (a3) ​​and the second air intake zone (a2) are arranged in a stepped manner.

8. The air circulator fan according to claim 1, characterized in that: The column (200) is provided with a Y-shaped bracket (400), and the head (300) is installed on the bracket (400); the bracket (400) is provided with a light trough (401), and the opening of the light trough (401) is closed by a transparent cover (500).

9. The air circulator fan according to claim 2, characterized in that: The front cover (310) has a slot (301) in the center, which is closed by a cover plate (350); the bottom of the slot (301) and the cover plate (350) are provided with air holes.

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