A floor fan with a spherical decorative top

Abstract

The utility model relates to a floor fan with spherical decoration top, including stand, the bottom end fixed connection of stand has the base of disc, the top of stand is fixedly connected with the rotating shaft mounting seat, the top of rotating shaft mounting seat is equipped with the outer rotor motor, and the central shaft of outer rotor motor is inserted and is fixed on rotating shaft mounting seat, the outer rotating machine shell of outer rotor motor includes lower casing, and the lower casing includes the bottom disc of circle, shell wall and the top plate of ring, the shell wall includes a plurality of annular distribution arc-shaped board, and is equipped with the arc-shaped heat dissipation channel between adjacent arc-shaped board, and the upper and lower ends of arc-shaped board are shaped on the top plate and bottom disc respectively, the top of outer rotor motor is covered with the decorative protective cover of hemispherical surface type. This fan is the large floor fan of ceiling fan structure, and the annular distribution heat dissipation groove is equipped on the motor of fan, can effectively realize the heat dissipation of motor, based on the motor is at the top, and the protective cover of spherical structure is additionally arranged on the fan blade and protects the motor, can effectively improve the security and stability of fan.

Description

Technical fields:

[0001] This utility model relates to the technical field of fan devices, and more specifically to a floor fan with a spherical decorative top. Background technology:

[0002] Floor fans typically consist of a base, a column, and a fan assembly mounted on top of the column. They are effective for indoor ventilation, cooling, and environmental improvement. Floor fans are widely used in warehouses, workshops, restaurants, and homes. Existing floor fans are generally small, while large ceiling fans are commonly used in warehouses and factories. However, in factories with high ceilings, installing large ceiling fans results in insufficient airflow to the ground. Therefore, the idea has been to convert large ceiling fans into floor fans, using a column to support the fan, thus achieving the desired airflow without placing the large ceiling fan at a high position. This necessitates the design of a large floor fan with the aforementioned structure, while also considering the fan motor's heat dissipation and safety features. Utility model content:

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a floor fan with a spherical decorative top. It is a large floor fan with a ceiling fan structure. The fan motor is equipped with ring-shaped heat dissipation slots, which can effectively dissipate heat from the motor. Since the motor is located at the top, a spherical protective cover is added to the fan blades to protect the motor, which can effectively improve the safety and stability of the fan.

[0004] A floor fan with a spherical decorative top includes a column, a disc-shaped base fixedly connected to the bottom of the column, a shaft mounting seat fixedly connected to the top of the column, an external rotor motor disposed above the shaft mounting seat, and the central shaft of the external rotor motor being inserted and fixed to the shaft mounting seat; the outer rotating housing of the external rotor motor includes a circular lower housing, the lower housing including a circular base, a housing wall and an annular top plate, the housing wall including a plurality of arc-shaped plates distributed in a ring, and an arc-shaped heat dissipation channel provided between adjacent arc-shaped plates, the upper and lower ends of the arc-shaped plates being formed on the top plate and the base respectively; a circular cover is fixedly connected to the top plate;

[0005] Several annularly distributed fan blade connecting rods are fixed on the lower end face of the upper chassis of the lower housing. The outer ends of the fan blade connecting rods are fitted with fan blades with a longitudinal airfoil-shaped cross-section. The upper part of the outer rotor motor is covered with a hemispherical decorative protective cover. The decorative protective cover includes several retaining rings with an inner diameter that gradually decreases from top to bottom. Several arc-shaped ribs are fixed on the retaining rings. Several mounting ear plates are welded and fixed on the retaining rings at the bottom of the decorative protective cover. Screws are inserted into the mounting ear plates and screwed through the fan blades and fixed to the fan blade connecting rods.

[0006] The floor fan is based on a base and is placed on the ground. The outer ring of the base has several mounting holes, and expansion bolts are installed in the mounting holes. The base is fixedly connected to the ground by the expansion bolts. A connecting sleeve is fitted and fixed to the upper part of the column. Several connecting lugs are formed on the connecting sleeve. Steel cables are fixedly connected to the connecting lugs. The lower ends of the steel cables are fixed to the ground around the base.

[0007] Preferably, the central axis of the external rotor motor, the central axis of the column, and the central axis of the decorative protective cover are on the same straight line.

[0008] Preferably, a circular anti-fall reinforcement ring is fitted onto the rotating shaft mounting seat at the top of the column. Several connecting columns are fixedly connected to the anti-fall reinforcement ring by bolts, and the upper ends of the connecting columns are respectively fixedly connected to the fan blade connecting rod by bolts.

[0009] The central axis of the anti-fall reinforcement ring coincides with the central axis of the external rotor motor. The number of connecting columns is equal to the number of fan blade connecting rods. Both the connecting columns and the fan blade connecting rods are evenly distributed in a ring around the central axis of the external rotor motor.

[0010] Preferably, the center of the shell cover is formed with an upwardly protruding hub, and the upper surface of the shell cover around the hub is formed with a number of arc-shaped guide ribs, the inner ends of which are formed on the outer wall of the hub; the guide ribs and arc-shaped ribs are evenly distributed in a ring around the central axis of the outer rotor motor.

[0011] Preferably, the center of the retaining ring on the decorative protective cover is located on the central axis of the decorative protective cover, and at least three ribs are provided in a ring-shaped and uniformly distributed around the central axis of the decorative protective cover.

[0012] Preferably, a circular column sleeve is formed in the middle of the base, and several reinforcing plates are fixed to the outer wall of the column sleeve. The lower end of the reinforcing plates is fixed to the base; the lower end of the column is inserted and fixed inside the column sleeve.

[0013] Preferably, there are at least three steel cables, which are evenly distributed in a ring around the central axis of the column, and the lower end of each steel cable is fixedly connected to a fixing ring, which is fixed to the ground.

[0014] The beneficial effects of this utility model are as follows:

[0015] This fan is a large floor fan with a ceiling fan structure. The fan motor has a ring of distributed heat dissipation slots, which can effectively dissipate heat from the motor. Since the motor is located at the top, a spherical protective cover is added to the fan blades to protect the motor, which can effectively improve the safety and stability of the fan. Attached image description:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0018] Figure 3 This is a three-dimensional structural diagram of the top part of the column of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the external rotor motor section of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of this utility model installed on the ground.

[0021] In the diagram: 1. Column; 11. Shaft mounting base; 2. External rotor motor; 21. Lower housing; 211. Arc plate; 212. Top plate; 22. Housing cover; 221. Hub; 222. Guide rib plate; 3. Fan blade connecting rod; 4. Fan blade; 5. Base; 6. Decorative protective cover; 61. Retaining ring; 62. Rib; 63. Mounting ear plate; 64. Screw; 7. Connecting column; 8. Anti-fall reinforcement ring. Detailed implementation method:

[0022] Example: See Figures 1 to 5 As shown, a floor fan with a spherical decorative top includes a column 1, a disc-shaped base 5 fixedly connected to the bottom end of the column 1, a rotating shaft mounting seat 11 fixedly connected to the top end of the column 1, an external rotor motor 2 disposed above the rotating shaft mounting seat 11, and the central shaft of the external rotor motor 2 being inserted and fixed on the rotating shaft mounting seat 11; the outer rotating housing of the external rotor motor 2 includes a circular lower housing 21, the lower housing 21 including a circular base, a housing wall and an annular top plate 212, the housing wall including a plurality of arc-shaped plates 211 arranged in a ring, and an arc-shaped heat dissipation channel provided between adjacent arc-shaped plates 211; the upper and lower ends of the arc-shaped plates 211 are respectively formed on the top plate 212 and the base; a circular cover 22 is fixedly connected to the top plate 212;

[0023] Several annularly distributed fan blade connecting rods 3 are fixed on the lower end face of the chassis of the lower housing 21. The outer end of the fan blade connecting rod 3 is fitted with a fan blade 4 with a longitudinal airfoil-shaped cross section. The upper part of the outer rotor motor 2 is covered with a hemispherical decorative protective cover 6. The decorative protective cover 6 includes several retaining rings 61 with an inner diameter that gradually decreases from top to bottom. Several arc-shaped ribs 62 are fixed on the retaining rings 61 at the bottom of the decorative protective cover 6. Several mounting ear plates 63 are welded and fixed on the mounting ear plates 63. Screws 64 are inserted into the mounting ear plates 63. The screws 64 pass through the fan blade 4 and are screwed and fixed to the fan blade connecting rod 3.

[0024] The floor fan is mounted on the ground based on a base 5. The outer ring of the base 5 has several mounting holes 51, and expansion bolts 20 are installed in the mounting holes 51. The base 5 is fixedly connected to the ground by the expansion bolts 20. A connecting sleeve 9 is fitted and fixedly connected to the upper part of the column 1. Several connecting lugs 91 are formed on the connecting sleeve 9, and steel cables 10 are fixedly connected to the connecting lugs 91. The lower ends of the steel cables 10 are fixedly connected to the ground around the base 5. In order to facilitate the effective mounting of the floor fan on the ground and prevent the floor fan from tipping over, expansion bolts 20 can be used to connect to the ground. At the same time, in order to improve the stability of operation, steel cables 10 can be used to pull and stabilize it.

[0025] The central axis of the external rotor motor 2, the central axis of the column 1, and the central axis of the decorative protective cover 6 are on the same straight line, so there is no eccentricity and the balance and stability during operation are ensured.

[0026] A circular anti-fall reinforcement ring 8 is fitted on the rotating shaft mounting seat 11 at the top of the column 1. Several connecting columns 7 are fixedly connected to the anti-fall reinforcement ring 8 by bolts. The upper end of the connecting column 7 is fixedly connected to the fan blade connecting rod 3 by bolts. The anti-fall reinforcement ring 8 connects all the fan blade connecting rods 3 together, improves the strength of the installation connection, and thus ensures the stability of the fan operation.

[0027] The central axis of the anti-fall reinforcement ring 8 coincides with the central axis of the external rotor motor 2. The number of connecting columns 7 is equal to the number of fan blade connecting rods 3. The connecting columns 7 and fan blade connecting rods 3 are evenly distributed in a ring around the central axis of the external rotor motor 2.

[0028] The center of the cover 22 has an upwardly protruding hub 221. Several arc-shaped guide ribs 222 are formed on the upper surface of the cover 22 around the hub 221. The inner ends of the guide ribs 222 are formed on the outer wall of the hub 221. The guide ribs 222 and the arc plates 211 are evenly distributed in a ring around the central axis of the outer rotor motor 2. The hub 221 can be designed as an inverted cone, that is, the diameter of the top of the hub 221 is smaller than the diameter of the bottom of the hub 221. The upper surface of the cover 22 can also be designed as a cone with a high center and a low center. An air inlet groove is provided on the outer wall of the hub 221 between the guide ribs 222. When the outer rotor motor 2 is running, air can be drawn in from the air inlet groove and discharged from the heat dissipation channel between the arc plates 211 to provide a heat dissipation effect.

[0029] The center of the upper retaining ring 61 of the decorative protective cover 6 is located on the central axis of the decorative protective cover 6, and the ribs 62 are provided with at least three ribs 62 that are evenly distributed in a ring around the central axis of the decorative protective cover 6.

[0030] A circular column sleeve is formed in the middle of the base 5, and several reinforcing plates 8 are fixed to the outer wall of the column sleeve. The lower end of the reinforcing plates 8 is fixed to the base 5; the lower end of the column 1 is inserted and fixed inside the column sleeve.

[0031] The steel cable 10 is provided with at least three cables, which are evenly distributed in a ring around the central axis of the column 1. The lower end of the steel cable 10 is fixedly connected to a fixing ring, which is fixed to the ground. The fixing ring can be installed and fixed to the ground by means of expansion bolts.

[0032] Working principle: This structure is a floor fan with a spherical decorative top. Its main technical point is to set the main body of the large ceiling fan structure on the top of the column 1, so that the main body of the fan is erected in the air by the column 1, thus not being limited by the height of the factory building.

[0033] The second technical point is that a ring-shaped heat dissipation groove is opened on the shell wall of the outer rotating housing of the outer rotor motor 2. When the outer rotor motor 2 rotates, it will generate centrifugal force. The arc plate 211 that makes up the shell wall of the outer rotating housing is equivalent to a centrifugal impeller structure, which throws out the heat inside the outer rotor motor 2 through centrifugal force, thereby improving the heat dissipation effect.

[0034] Meanwhile, the floor-standing fan of this structure is also suitable for outdoor planting areas, such as tea gardens in hilly areas. Using the fan mounted on the column 1 for frost protection may not necessarily prevent damage to the outer rotor motor 2. Therefore, a hemispherical decorative protective cover 6 is fixed on the outside of the outer rotor motor 2.

[0035] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A floor fan with a spherical decorative top, comprising a column (1), wherein a disc-shaped base (5) is fixedly connected to the bottom end of the column (1), characterized in that: A rotating shaft mounting base (11) is fixedly connected to the top of the column (1). An external rotor motor (2) is provided above the rotating shaft mounting base (11). The central shaft of the external rotor motor (2) is inserted and fixed on the rotating shaft mounting base (11). The outer rotating housing of the external rotor motor (2) includes a circular lower housing (21). The lower housing (21) includes a circular base, a shell wall and an annular top plate (212). The shell wall includes several arc-shaped plates (211) arranged in a ring. An arc-shaped heat dissipation channel is provided between adjacent arc-shaped plates (211). The upper and lower ends of the arc-shaped plates (211) are respectively formed on the top plate (212) and the base. A circular shell cover (22) is fixedly connected to the top plate (212). Several annularly distributed fan blade connecting rods (3) are fixed on the lower end face of the chassis of the lower housing (21). The outer end of the fan blade connecting rod (3) is fitted with a fan blade (4) with a longitudinal airfoil-shaped cross section. The upper part of the outer rotor motor (2) is covered with a hemispherical decorative protective cover (6). The decorative protective cover (6) includes several retaining rings (61) with an inner diameter that gradually decreases from top to bottom. Several arc-shaped ribs (62) are fixed on the retaining rings (61). Several mounting ear plates (63) are welded and fixed on the retaining rings (61) at the bottom of the decorative protective cover (6). Screws (64) are inserted into the mounting ear plates (63). The screws (64) pass through the fan blade (4) and are screwed and fixed on the fan blade connecting rod (3). The floor fan is based on a base (5) and is placed on the ground. The outer ring of the base (5) has several mounting holes (51). Expansion bolts (20) are installed in the mounting holes (51). The base (5) is fixedly connected to the ground by the expansion bolts (20). A connecting sleeve (9) is fitted and fixedly connected to the upper part of the column (1). Several connecting ears (91) are formed on the connecting sleeve (9). Steel cables (10) are fixedly connected to the connecting ears (91). The lower ends of the steel cables (10) are respectively fixed to the ground around the base (5).

2. A floor fan with a spherical decorative top according to claim 1, characterized in that: The central axis of the external rotor motor (2), the central axis of the column (1), and the central axis of the decorative protective cover (6) are on the same straight line.

3. A floor fan with a spherical decorative top according to claim 2, characterized in that: A circular anti-fall reinforcement ring (8) is fitted onto the rotating shaft mounting seat (11) at the top of the column (1). Several connecting columns (7) are fixedly connected to the anti-fall reinforcement ring (8) by bolts. The upper ends of the connecting columns (7) are fixedly connected to the fan blade connecting rod (3) by bolts. The central axis of the anti-fall reinforcement ring (8) coincides with the central axis of the external rotor motor (2). The number of connecting columns (7) is equal to the number of fan blade connecting rods (3). The connecting columns (7) and fan blade connecting rods (3) are evenly distributed in a ring around the central axis of the external rotor motor (2).

4. A floor fan with a spherical decorative top according to claim 2, characterized in that: The center of the shell cover (22) is formed with an upwardly protruding hub (221), and the upper surface of the shell cover (22) around the hub (221) is formed with several arc-shaped guide ribs (222). The inner end of the guide ribs (222) is formed on the outer wall of the hub (221). The guide ribs (222) and the arc-shaped plates (211) are evenly distributed in a ring around the central axis of the outer rotor motor (2).

5. A floor fan with a spherical decorative top according to claim 2, characterized in that: The center of the upper retaining ring (61) of the decorative protective cover (6) is located on the central axis of the decorative protective cover (6), and the ribs (62) are provided with at least three ribs (62) that are evenly distributed in a ring around the central axis of the decorative protective cover (6).

6. A floor fan with a spherical decorative top according to claim 1, characterized in that: The base (5) has a circular column sleeve formed in the middle. Several reinforcing plates (8) are fixed to the outer wall of the column sleeve. The lower end of the reinforcing plates (8) is fixed to the base (5). The lower end of the column (1) is inserted and fixed inside the column sleeve.

7. A floor fan with a spherical decorative top according to claim 1, characterized in that: The steel cable (10) is provided with at least three cables, which are evenly distributed in a ring around the central axis of the column (1). The lower end of the steel cable (10) is fixedly connected to a fixing ring, which is fixed to the ground.

Images