Industrial large ceiling fan
By using a sound insulation and heat dissipation mechanism and a permanent magnet motor plus a planetary reduction mechanism in industrial ceiling fans, the problems of large noise and short service life of traditional ceiling fans are solved, and the effects of low noise, efficient heat dissipation and low motor cost are achieved.
Patent Information
- Application Number
- CN202421738704.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Traditional ceiling fans are noisy during use, and will produce wind noise and internal abnormal noise during operation, especially in environments such as schools and libraries. The ceiling fans need to be improved to reduce noise and extend their service life.
An industrial large ceiling fan is designed, using a sound insulation and heat dissipation mechanism, including an annular columnar radiator and a sound insulation layer. The annular columnar radiator is embedded between the shell and the driving mechanism, and the sound insulation layer is embedded on the inner wall of the annular columnar radiator. Combined with a permanent magnet motor and a planetary reduction mechanism, breathable heat dissipation holes and rotary support bearings are added to reduce noise and improve heat dissipation effect.
The noise and abnormal noise of the fan are significantly reduced through the sound insulation and heat dissipation mechanism, making it run smoother, extending its service life, and achieving a small size and light weight of the motor through efficient heat dissipation and a low-cost permanent magnet motor.
Smart Images
Figure CN222924678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ceiling fans, and particularly relates to an industrial large ceiling fan. Background Art
[0002] As is well known, a fan is one of the most common household appliances. According to different usage environments, the most common fans are floor fans and ceiling fans. Among them, ceiling fans are widely used due to their strong wind power.
[0003] A ceiling fan is an electric fan fixedly installed on the ceiling. It has many advantages such as energy saving, convenience, and practicality, and is widely loved by consumers. In traditional ceiling fans, the main shaft of the motor is connected to the lower end of the hanging head through threads. The upper end of the hanging head is sleeved with a hanging rod, and a fastener penetrates through the hanging head and the hanging rod. In this way, one end of the hanging head is connected to the main shaft of the motor, and the other end is connected to the hanging rod, realizing the connection between the hanging rod and the main shaft of the motor. However, during the use of traditional ceiling fans, the noise is relatively large. In addition to the large wind noise during operation, various abnormal noises often come out inside the ceiling fan. Generally, there is no major problem, but when such ceiling fans are used in environments such as schools and libraries, it will have many adverse effects. Therefore, it is necessary to improve the existing ceiling fans in many aspects. Summary of the Utility Model
[0004] Therefore, in view of the above problems, the utility model proposes an industrial large ceiling fan with reasonable structure, reduced operation noise, and extended service life.
[0005] To solve this technical problem, the utility model adopts the following scheme: an industrial large ceiling fan, comprising a connecting column, a housing, an upper end cover, a lower end cover, a driving mechanism, a rotating disk, and a fan blade bracket; the upper end cover and the lower end cover are respectively arranged at the upper and lower ends of the housing. The housing is a hollow column. The lower end of the connecting column is connected to the upper end surface of the upper end cover. The driving mechanism is arranged inside the housing, and the output end of the driving mechanism passes through the lower end cover and is connected to the rotating disk to drive the rotating disk to rotate. The fan blade bracket is arranged on the free end surface of the rotating disk. A sound insulation and heat dissipation mechanism is arranged between the housing and the driving mechanism. The sound insulation and heat dissipation mechanism includes an annular columnar radiator and a sound insulation layer. The annular columnar radiator is embedded between the housing and the driving mechanism, and the sound insulation layer is evenly embedded on the inner side wall of the annular columnar radiator.
[0006] Further improvement, a plurality of heat dissipation fins are evenly spaced on the outer circumference of the annular columnar radiator. The upper end cover is provided with a plurality of air permeable and heat dissipation holes in the cavity area formed by the intervals of the heat dissipation fins.
[0007] Further improvement, the driving mechanism includes a permanent magnet motor.
[0008] Further improvement: The driving mechanism further includes a planetary reduction mechanism. The permanent magnet motor is connected to the rotating disk through the planetary reduction mechanism to drive the rotating disk to rotate.
[0009] Further improvement: The peripheral edge of the lower end cover extends downward to form an annular boss. The upper peripheral edge of the rotating disk is rotatably sleeved on the annular boss of the lower end cover through a rotating support bearing.
[0010] Further improvement: The sound insulation layer includes a plurality of sound insulation strips with an arc-shaped cross section. Each sound insulation strip is evenly spaced and vertically arranged on the inner side wall of the annular columnar radiator.
[0011] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are as follows: By arranging a sound insulation and heat dissipation mechanism between the driving mechanism and the housing of the industrial large ceiling fan, that is, the annular columnar radiator is embedded between the housing and the driving mechanism and the sound insulation layer is evenly embedded on the inner side wall of the annular columnar radiator, the noise and abnormal noise generated by the operation of the driving mechanism of the fan are greatly reduced to almost no sound through the sound insulation layer. By arranging the annular columnar radiator, the heat generated by the operation of the driving mechanism can be quickly discharged, thereby extending the service life. The motor uses a high-speed motor. By arranging heat dissipation blades and ventilation heat dissipation holes, the heat dissipation effect is enhanced. By adopting a permanent magnet motor plus a planetary reduction mechanism to drive the rotating disk to rotate and then drive the fan blade bracket to rotate and blow air, the motor has a low cost, a small volume and a light weight. By adding a rotating support bearing between the rotating disk and the lower end cover, the fan runs more smoothly and is better stressed, and can be widely promoted and applied. Description of the Drawings
[0012] Figure 1 is a vertical cross-sectional structural schematic diagram of an embodiment of the present utility model;
[0013] Figure 2 is a partial top view structural schematic diagram of an embodiment of the present utility model. Detailed Embodiment
[0014] The present utility model will be further described below in conjunction with the drawings and the detailed embodiment.
[0015] Refer to Figure 1 and Figure 2, preferably, the industrial large ceiling fan of the present utility model includes a connecting column 1, a housing 2, an upper end cover 3, a lower end cover 4, a driving mechanism 5, a rotating disc 6 and a fan blade bracket 7; the upper end cover 3 and the lower end cover 4 are respectively arranged at the upper and lower ends of the housing 2, the housing 2 is a hollow column, the lower end of the connecting column 1 is connected to the upper end surface of the upper end cover 3, and a wire rope hook 101 for connecting to the top wall is arranged at the upper end of the connecting column 1. The driving mechanism 5 is arranged inside the housing 2, and the output end of the driving mechanism 5 passes through the lower end cover 4 and is connected to the rotating disc 6 to drive the rotating disc 6 to rotate. The driving mechanism 5 is a permanent magnet motor 51 and a planetary reduction mechanism 52. The permanent magnet motor 51 is connected to the rotating disc 6 through the planetary reduction mechanism 52 to drive the rotating disc 6 to rotate. The peripheral edge of the lower end cover 4 extends downward to form an annular boss, and the upper peripheral edge of the rotating disc 6 is rotatably sleeved on the annular boss of the lower end cover 4 through a rotary support bearing 8. The fan blade bracket 7 is arranged on the lower end surface of the rotating disc 6. A sound insulation and heat dissipation mechanism is arranged between the housing 2 and the driving mechanism 5. The sound insulation and heat dissipation mechanism includes an annular columnar radiator 9 and a sound insulation layer 10. The annular columnar radiator 9 is embedded between the housing 2 and the driving mechanism 5. The sound insulation layer 10 includes a plurality of sound insulation strips with an arc-shaped cross section. Each sound insulation strip is vertically arranged on the inner side wall of the annular columnar radiator 9 at equal intervals. A plurality of heat dissipation fins 91 are arranged at equal intervals on the outer circumference of the annular columnar radiator 9. A plurality of air permeable and heat dissipation holes 31 are arranged on the upper end cover 3 in the cavity area formed by the intervals of the heat dissipation fins 91.
[0016] In the above embodiments, the driving mechanism can also adopt a conventional active motor, such as a servo motor, etc. to drive the rotating disc to rotate. The sound insulation layer can be a whole annular columnar structure of sound insulation and noise elimination materials, or a structure composed of a combination of a plurality of sound insulation strips. The sound insulation layer can be a sound insulation material such as sound insulation cotton that can filter and reduce noise. The wire rope hook at the upper end of the connecting column can also be set into other hanging ring structures that are convenient for installation on the wall, etc.
[0017] Although the present utility model is specifically shown and introduced in combination with the preferred implementation embodiments, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims, and all of them fall within the protection scope of the present utility model.
Claims
1. An industrial large ceiling fan, comprising a connecting column, a shell, an upper end cover, a lower end cover, a driving mechanism, a rotating disk and a fan blade bracket; the upper end cover and the lower end cover are respectively arranged on the upper and lower ends of the shell, the shell is a hollow cylinder, the lower end of the connecting column is connected to the upper end surface of the upper end cover, the driving mechanism is arranged in the shell and the output end of the driving mechanism passes through the lower end cover and is connected to the rotating disk to drive the rotating disk to rotate, the fan blade bracket is arranged on the free end surface of the rotating disk, and is characterized in that: A sound insulation and heat dissipation mechanism is provided between the shell and the driving mechanism, and the sound insulation and heat dissipation mechanism comprises an annular columnar radiator and a sound insulation layer. The annular columnar radiator is embedded between the shell and the driving mechanism, and the sound insulation layer is evenly embedded on the inner side wall of the annular columnar radiator.
2. The industrial large ceiling fan according to claim 1, characterized in that: A plurality of heat dissipation blades are evenly spaced on the outer circumference of the annular columnar heat sink, and a plurality of air-permeable heat dissipation holes are provided in the cavity area formed by the heat dissipation blades on the upper end cover.
3. The industrial large ceiling fan according to claim 1, characterized in that: The driving mechanism includes a permanent magnet motor.
4. The large industrial ceiling fan according to claim 3, characterized in that: The driving mechanism also includes a planetary reduction mechanism, and the permanent magnet motor is connected to the rotating disk via the planetary reduction mechanism to drive the rotating disk to rotate.
5. The industrial large ceiling fan according to claim 1, characterized in that: The circumference of the lower end cover extends downward to form an annular boss, and the upper circumference of the rotating disk is rotatably sleeved on the annular boss of the lower end cover via a rotating support bearing.
6. The large industrial ceiling fan according to claim 1, characterized in that: The sound insulation layer comprises a plurality of sound insulation strips with arc-shaped cross sections, and each of the sound insulation strips is evenly spaced and vertically arranged on the inner side wall of the annular columnar radiator.