TW201930731A - ceiling fan - Google Patents

Abstract

A ceiling fan is provided to solve the problem where the water is liable to accumulate in the conventional ceiling fan. The ceiling fan includes a stator, a rotor, a base, a water discharging structure and a plurality of blades. The stator includes a winding assembly and an axle. The rotor is rotatably coupled with the axle. The base is coupled with the stator. The water discharging structure is mounted on the base and includes an inclined portion and a water outlet. The water outlet communicates with a lowest portion of the inclined portion. The blades are mounted to the rotor.

Description

ceiling fan

The invention relates to a ceiling fan, in particular to a ceiling fan with a drainage structure.

Ceiling fans are widely used by the public because they do not occupy the floor space and have good air disturbance effects. The conventional ceiling fan has a stator, a rotor, and several fan blades. The stator is provided with a shaft, the rotor is rotatably coupled to the outer periphery of the shaft, the rotor has a hub, and several blades are coupled to the hub; the hub of the rotor is rotated relative to the shaft of the stator, The fan blades are driven to rotate synchronously, thereby driving the fan blades to generate airflow. An embodiment similar to the conventional ceiling fan has been disclosed in the ROC Patent No. I601920 “Ceiling Fan” patent case.

However, when a conventional ceiling fan is suspended from an indoor ceiling, the ceiling is often subject to humidity and water leakage, which makes it easy for water vapor to penetrate into the interior of the ceiling fan. In addition, as the environment in which the ceiling fan is used is becoming more and more widespread, it is no longer limited to indoors as in the past. Space, therefore, when the ceiling is used in an open space, if it rains, since the ceiling fan has no other protection, the rainwater will splash into the ceiling fan from all sides. Therefore, no matter whether the conventional ceiling fan is suspended indoors or outdoors, under long-term use, it is easy to cause water vapor inside the ceiling fan to form water accumulation, and the accumulated water cannot be ruled out for a long time, which will cause the internal electronic components to be damaged due to moisture. , Which seriously affects the service life of the conventional ceiling fan.

In view of this, the conventional ceiling fan still needs to be improved.

In order to solve the above problems, the present invention provides a ceiling fan, which can eliminate the water accumulated in the ceiling fan, avoid damage to electronic components due to long-term moisture, and has the effect of improving the life of the ceiling fan.

The following directional or similar terms of the present invention, such as "front", "rear", "upper (top)", "lower (bottom)", "inside", "outside", "side", etc., are mainly related to With reference to the directions of the accompanying drawings, each directivity or its approximate terms are only used to assist in explaining and understanding the embodiments of the present invention, and are not intended to limit the present invention.

The ceiling fan of the present invention comprises: a stator having a winding assembly and a shaft; a rotor rotatably coupled to the outer periphery of the shaft; a base coupled to the stator; and a drainage structure provided on the base The drainage structure has an inclined portion and a drainage hole, and the drainage hole communicates with the lowest position of the inclined portion; and several fan blades are arranged on the rotor.

According to this, the ceiling fan of the present invention utilizes the design that the drainage structure has an inclined portion and a drainage hole, and the drainage hole communicates with the lowest position of the inclined portion, so that the water vapor that penetrates into the interior of the base can be inclined The upper part flows to the lowest position and flows out through the drainage hole to exclude water and gas in the base, to avoid the phenomenon of stagnant water in the base, and damage to electronic components due to moisture, thereby extending the ceiling fan. And reduce the cost of replacing or repairing the ceiling fan at the same time, in order to reduce the additional burden on the user, thereby improving the convenience of use.

Wherein, the base has an electrical box, a circuit board is arranged inside the electrical box, the drainage structure has a waterproof layer, the waterproof layer is arranged in the electrical box and covers the circuit board, and the surface of the waterproof layer forms the slope unit. In this way, the waterproof layer has the effects of protecting the circuit board and allowing water vapor to flow to the lowest position and flowing out through the drainage hole.

The waterproof layer is formed by a polyurethane glue pouring process or a silicone glue pouring process. In this way, it has better waterproof and moisture-proof effects.

The electrical box has a side wall portion, and the drainage hole is provided in the side wall portion. In this way, the drainage hole system has the effect of being easy to manufacture.

The electrical box has a bottom, and the drainage hole is disposed on the bottom. In this way, the drainage hole system has the effect of being easy to manufacture.

Wherein, the drainage structure is a funnel-shaped water guiding member, and the water guiding member is formed with the inclined portion and the drainage hole. In this way, the water guiding member has the effect of facilitating assembly.

Wherein, the base has an electrical box, a circuit board is arranged inside the electrical box, the drainage structure has a waterproof layer, and the waterproof layer is arranged in the electrical box and covers the circuit board. In this way, the waterproof layer has the effect of protecting the circuit board.

The base has an electrical box and at least one positioning portion. The at least one positioning portion is disposed on the base. The base is coupled to the stator by the at least one positioning portion. In this way, the system has the effect of improving the convenience of assembly.

Wherein, it further comprises a cap member, the cap member has a through hole, the rotor has a bearing sleeve, the bearing sleeve is arranged on the shaft, the rotor forms a shoulder on the bearing sleeve, and the cap piece is formed by the A through hole is sleeved on the shaft and adjacent to the shoulder. In this way, it has the effect of preventing water and gas from penetrating into the interior of the ceiling fan through the gap between the shaft and the bearing sleeve.

Wherein, the rotor has a hub, and the bottom edge of the hub has an expanded portion, and an obtuse angle is formed between the expanded portion and the outer peripheral wall of the hub. In this way, the outer expanding portion has the effect of blocking rainwater and preventing rainwater from splashing into the ceiling fan from being splashed by the outer peripheral wall of the hub.

Wherein, it further comprises a water guiding member disposed on the base, the water guiding member has an inclined portion and a drainage hole, and the drainage hole of the water guiding member communicates with the lowest position of the inclined portion. In this way, the water vapor in the electrical box can be ensured to have a better drainage effect.

1‧‧‧ stator

11‧‧‧ Winding assembly

12‧‧‧ shaft

13‧‧‧Combination ring

2‧‧‧ rotor

21‧‧‧ Wheel

22‧‧‧Permanent magnet set

23‧‧‧bearing sleeve

24‧‧‧ Shoulder

25‧‧‧External Expansion Department

26‧‧‧ Adapter Board

3‧‧‧ base

31‧‧‧Electrical Box

311‧‧‧circuit board

312‧‧‧side wall section

313‧‧‧ bottom

32‧‧‧Positioning Department

4‧‧‧ drainage structure

41‧‧‧inclined

42‧‧‧Drain hole

43‧‧‧Waterproof layer

4’‧‧‧ water guide

5‧‧‧ fan leaf

6‧‧‧ cap parts

61‧‧‧through hole

G‧‧‧ Clearance

α‧‧‧ obtuse angle

Figure 1: An exploded perspective view of a first embodiment of the present invention.

Fig. 2: A sectional view of a combination of the first embodiment of the present invention.

Fig. 3: A sectional view of a second embodiment of the present invention.

FIG. 4 is a combined sectional view of a third embodiment of the present invention.

FIG. 5 is a combined sectional view of a fourth embodiment of the present invention.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention and the accompanying drawings in detail, as follows:

Please refer to FIG. 1, which is a first embodiment of a ceiling fan according to the present invention. The ceiling fan includes a stator 1, a rotor 2, a base 3, a drainage structure 4, and a plurality of fan blades 5. The rotor 2 is rotatable. Coupled to the outer periphery of the shaft 12, the base 3 is coupled to the stator 1, the drainage structure 4 is disposed on the base 3, and several blades 5 are disposed on the rotor 2.

Please refer to FIGS. 1 and 2. The stator 1 has a winding assembly 11 and a shaft 12. The shaft 12 can be sleeved with a coupling ring 13 for coupling the base 3.

Referring to FIGS. 1 and 2, the rotor 2 is rotatably coupled to the outer periphery of the shaft 12. The rotor 2 may have a hub 21 and a permanent magnet group 22, and the permanent magnet 22 is coupled to the inside of the hub 21, and The permanent magnet group 22 is located on the outer periphery of the winding assembly 11 and forms an air gap with the winding assembly 11. The rotor 2 may further have a bearing sleeve 23. The bearing sleeve 23 is sleeved on the shaft 12 and is located above the coupling ring 13. The rotor 2 may form a shoulder 24 on the bearing sleeve 23.

Please refer to FIGS. 1 and 2. The base 3 is coupled to the stator 1. The base 3 may have an electrical box 31 and at least one positioning portion 32. The at least one positioning portion 32 is disposed on the base 3. A positioning portion 32 is fixed on the coupling ring 13 of the stator 1 so that the base 3 can be coupled to the stator 1. A circuit board 311 is preferably provided inside the electrical box 31. The circuit board 311 is used to control the operation of the ceiling fan. The electrical box 3 may further include a side wall portion 312 and a bottom portion 313. The side wall portion 312 is arranged around Around the bottom 313.

In particular, the electrical box 31 can be used to drive the motor of the ceiling fan, so that The rotor 2 can rotate relative to the stator 1; or when the ceiling fan is combined with a light-emitting element (not shown), such as an LED lamp, the electrical box 31 can also be used to provide power to the light-emitting element and make the light-emitting element Can provide lighting function.

Referring to FIGS. 1 and 2, the drainage structure 4 is disposed on the base 3. The drainage structure 4 has an inclined portion 41 and a drainage hole 42. The drainage hole 42 communicates with the lowest position of the inclined portion 41. It is known in detail that the drainage structure 4 may have a waterproof layer 43 disposed in the electrical box 31 of the base 3, wherein the waterproof layer 43 is preferably filled with polyurethane glue (PU glue). Formed by a glue process or a silicone glue filling process, so that the waterproof layer 43 can cover the circuit board 311, and the surface of the waterproof layer 43 forms the inclined portion 41. The lowest position of the inclined portion 41 is adjacent to the electrical box 31. The side wall portion 312, therefore, the drainage hole 42 is provided in the side wall portion 312 of the electrical box 31.

Referring to FIGS. 1 and 2, the plurality of fan blades 5 are disposed on the rotor 2, the plurality of fan blades 5 are coupled to the hub 21, and the plurality of fan blades 5 can be driven to rotate by the hub 21.

Please refer to FIGS. 1 and 2. The ceiling fan of the present invention may further include a cap member 6 having a through hole 61, and the cap member 6 is sleeved on the shaft 12 through the through hole 61 and Adjacent to the shoulder 24 of the rotor 2, the cap member 6 and the shaft 12 are preferably tightly matched or glued together so that the cap member 6 can cover the shaft 12 and the bearing sleeve 23. There is a gap G between them to prevent water and gas from penetrating into the interior of the ceiling fan through the gap G.

Please refer to FIG. 2. According to the foregoing structure, when the ceiling fan of this embodiment is used, if it is raining or the ceiling is wet, water vapor will splash into the ceiling fan from all sides, or the shaft 12 will penetrate the ceiling fan. Inside, at this time, water and gas flow into the electrical box 31 of the base 3 provided at the bottom of the ceiling fan. The inclined portion 41 of the drainage structure 4 can make the water flow to the lowest position and flow out through the drainage hole 42. The water vapor in the electrical box 31 can be eliminated to prevent the accumulation of water inside the ceiling fan, thereby preventing the circuit board 311 from being damaged due to moisture. In addition, the cap member 6 can also be used to cover the shaft 12 and the bearing sleeve. The gap G between 23, in this way, can further reduce the probability of water vapor penetrating into the interior of the ceiling fan.

Please refer to FIG. 3, which is the second embodiment of the ceiling fan of the present invention. The second embodiment of the present invention is substantially the same as the first embodiment described above, and the main difference is that the drainage hole of the second embodiment of the present invention 42 is disposed on the bottom 313 of the electrical box 31, and the inclined portion 41 of the drainage structure 4 can make the water flow to the lowest position and flow out through the drainage hole 42. In this way, the water and gas in the electrical box 31 can be excluded to prevent The phenomenon that water accumulates inside the ceiling fan, thereby preventing the circuit board 311 from being damaged due to moisture, whereby the drainage structure 4 provides another configuration different from the first embodiment.

Please refer to FIG. 4, which is the third embodiment of the ceiling fan of the present invention. The third embodiment of the present invention is substantially the same as the first embodiment described above. The main difference is that the number of the third embodiment of the present invention The fan blades 5 are coupled to the hub 21 via an adapter plate 26. The drainage structure 4 is a funnel-shaped water guide 4 '. The water guide 4' is formed with the inclined portion 41 and the drainage hole 42, The surface of the waterproof layer 43 is flat. When water vapor penetrates into the ceiling fan and flows to the water guiding member 4 ′, the inclined portion 41 of the water guiding member 4 ′ can make the water flow to the lowest position and flow out through the drainage hole 42. In this way, the electrical box 31 The water vapor inside is prevented to prevent the accumulation of water inside the ceiling fan, thereby preventing the circuit board 311 from being damaged due to moisture. In this embodiment, the water guide 4 'is used directly to achieve the inclined portion 41 and the drainage hole. The 42 effect, thereby, has the effect of facilitating assembly, which can further reduce manufacturing costs. In addition, the bottom edge of the hub 21 may further have an overhanging portion 25, and an obtuse angle α is formed between the overhanging portion 25 and the outer peripheral wall of the hub 21. When rainwater splashes from the outside of the ceiling fan, the overhanging portion 25 is It can stop rainwater and prevent rainwater from splashing from the outer peripheral wall of the hub 21 into the ceiling fan.

Please refer to FIG. 5, which is a fourth embodiment of the ceiling fan of the present invention. The fourth embodiment of the present invention is substantially the same as the third embodiment described above. The main difference is that the fourth embodiment of the present invention has the drainage The structure 4 and the water guiding member 4 ′, the drainage hole 42 of the drainage structure 4 communicates with the lowest position of the inclined portion 41, and the drainage hole 42 of the water guiding member 4 ′ communicates with the bottom of the inclined portion 41. In a low position, the ceiling fan is provided with the drainage structure 4 and the water guiding member 4 'at the same time; in this way, it is possible to ensure that the water and gas in the electrical box 31 can be eliminated and the phenomenon of water accumulation inside the ceiling fan can be prevented. Has better drainage effect.

To sum up, the ceiling fan of the present invention uses the drainage structure to have a sloped portion and a drainage hole, and the drainage hole communicates with the lowest position of the sloped portion, so that the water vapor that penetrates into the interior of the base can be used in The inclined portion flows up to the lowest position and flows out through the drainage hole to exclude water vapor in the base, to avoid the phenomenon of water accumulation in the base, and damage to electronic components due to moisture, thereby extending the time. The service life of the ceiling fan, and at the same time reduce the cost of replacing or repairing the ceiling fan, in order to reduce the additional burden on the user, and thus improve the convenience of use.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention. The technical scope protected by the invention, so the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Claims (11)

A ceiling fan includes: a stator having a winding assembly and a shaft; a rotor rotatably coupled to the outer periphery of the shaft; a base coupled to the stator; a drainage structure provided on the base; The drainage structure has an inclined portion and a drainage hole, the drainage hole communicates with the lowest position of the inclined portion; and several fan blades are arranged on the rotor. The ceiling fan according to item 1 of the scope of patent application, wherein the base has an electrical box, a circuit board is arranged inside the electrical box, the drainage structure has a waterproof layer, and the waterproof layer is arranged in the electrical box and wrapped. The circuit board is covered, and the inclined surface is formed on the surface of the waterproof layer. The ceiling fan according to item 2 of the patent application scope, wherein the waterproof layer is formed by a polyurethane glue pouring process or a silicone glue pouring process. The ceiling fan according to item 2 of the scope of patent application, wherein the electrical box has a side wall portion, and the drainage hole is provided in the side wall portion. The ceiling fan according to item 2 of the scope of patent application, wherein the electrical box has a bottom, and the drainage hole is provided at the bottom. The ceiling fan according to item 1 of the scope of patent application, wherein the drainage structure is a funnel-shaped water guiding member, and the water guiding member is formed with the inclined portion and the drainage hole. The ceiling fan according to item 6 of the scope of patent application, wherein the base has an electrical box, the electrical box is provided with a circuit board inside, the drainage structure has a waterproof layer, and the waterproof layer is arranged in the electrical box and wrapped. Cover the circuit board. The ceiling fan according to item 1 of the scope of patent application, wherein the base has an electrical box and at least one positioning portion, the at least one positioning portion is disposed on the base, and the base is coupled to the at least one positioning portion by The stator. The ceiling fan according to item 1 of the patent application scope, further comprising a cap member having a through hole, the rotor having a bearing sleeve, the bearing sleeve being provided on the shaft, and the rotor being provided on the bearing The sleeve is formed with a shoulder, and the cap member is sleeved on the shaft through the through hole and is adjacent to the shoulder. The ceiling fan according to item 6 of the patent application scope, wherein the rotor has a hub, the bottom edge of the hub has an enlarged portion, and an obtuse angle is formed between the enlarged portion and the outer peripheral wall of the hub. The ceiling fan according to item 1 of the scope of patent application, further comprising a water guiding member disposed on the base, the water guiding member having an inclined portion and a drainage hole, and the drainage hole of the water guiding member communicates with the The lowest position of the slope.