CN106870420B

CN106870420B - Convection type ceiling fan with cold and warm lamp decoration

Info

Publication number: CN106870420B
Application number: CN201710288490.3A
Authority: CN
Inventors: 何良远
Original assignee: Jinlok Magnetics Ltd
Current assignee: Jinlok Magnetics Ltd
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2022-09-02
Anticipated expiration: 2037-04-27
Also published as: CN106870420A

Abstract

The invention discloses a convection type ceiling fan with cold and warm lamp decorations, which comprises a hanging rod, a brushless direct current motor, fan blades, an LED lamp decoration, a heat radiator and a PTC heat generating body, wherein the brushless direct current motor comprises a rotor, a stator, a rotating shaft, a top shell and a bottom shell, the top shell covers the bottom shell, the rotating shaft penetrates through the top shell and the bottom shell and is installed on the top shell and the bottom shell through bearings, one end of the rotating shaft is connected with the hanging rod through a coupler, the LED lamp decoration is installed at the other end of the rotating shaft, the stator is sleeved on the rotating shaft and is arranged in the top shell and the bottom shell, the rotor is attached to the inner walls of the top shell and the bottom shell, a rotating gap is formed between the stator and the rotor, the root of each fan blade is fixed between the LED lamp decoration and the bottom shell, the heat radiator and the PTC heat generating body are installed above the fan blades, and the heat radiator is used for conducting and radiating heat of the PTC heat generating body. The invention can be used all the year round, and integrates ceiling fan, heating, lamp decoration, intelligence, safety, reliability, energy conservation and environmental protection.

Description

Convection type ceiling fan with cold and warm lamp decoration

Technical Field

The invention belongs to the field of ceiling fans, and particularly relates to a ceiling fan capable of providing cold and hot circulating airflow for a room.

Background

The existing fan with the heating function is only local convection, cannot circulate convection in the whole space and cannot perform up-and-down convection. The heating body is generally composed of resistance wires or infrared rays, the working temperature can exceed 1100 ℃, and the ceiling fan belongs to a high-temperature open fire heater. Meanwhile, the physical phenomenon of cold and warm air in winter causes a large temperature difference between the upper part and the lower part of the room (the temperature difference of the room is generally 6-10 ℃), and cold and hot air flows generated by the fan cannot form large-area circulating flow, so that imbalance of the indoor temperature is caused, and discomfort of supercooling or overheating is brought to a human body.

Disclosure of Invention

The invention aims to provide a convection type ceiling fan with cold and warm lamp decorations, which can lead the circulation of indoor air from top to bottom and even the whole room to be balanced, improve the utilization rate of heat energy, avoid the environment temperature from being suddenly cooled and suddenly heated, and lead the indoor to generate breeze like the nature.

According to one aspect of the invention, the convection type ceiling fan with the cold and warm lamp decorations comprises a hanging rod, a brushless direct current motor, fan blades, LED lamp decorations, a heat radiator and a PTC heat generating body, wherein the brushless direct current motor comprises a rotor, a stator, a rotating shaft, a top shell and a bottom shell, the top shell covers the bottom shell, the rotating shaft penetrates through the top shell and the bottom shell and is installed on the top shell and the bottom shell through a bearing, one end of the rotating shaft is connected with the hanging rod through a coupler, the LED lamp decorations are installed at the other end of the rotating shaft, the stator is sleeved on the rotating shaft and is arranged in the top shell and the bottom shell, the rotor is attached to the inner walls of the top shell and the bottom shell, a rotating gap is formed between the stator and the rotor, the roots of the fan blades are fixed between the LED lamp and the bottom shell, the heat radiator and the PTC heat generating body are installed above the fan blades, and the heat radiator is used for conducting and radiating heat of the PTC heat generating body.

The PTC heating element is adopted as a heating element, has the characteristics of automatic constant temperature maintenance, internal maximum temperature of less than or equal to 260 ℃ and use temperature of less than or equal to 150 ℃, and has no open fire, so that the PTC heating element is safe and reliable, has high heat exchange efficiency, saves energy, can automatically adjust power and has long service life; the fan blade rotates to generate wind which blows towards the PTC heating body above the fan blade, the wind quantity, the light and the heating are intelligently controlled through the control chip, and the forward rotation and the reverse rotation of the brushless direct current motor are controlled, namely the fan blade reversely blows upwards in winter and reversely blows downwards in summer (the PTC heating body does not work), so that hot air rises in winter and cold air falls in summer, the fan blade blows to achieve the air circulation effect of upward convection and downward convection, and the indoor air is warm in winter and cool in summer and comfortable in body feeling.

In some embodiments, the fan blades are 5 straight blades, each fan blade is fixed on the bottom shell through a blade fork, and each fan blade and each blade fork form an inclination angle of 13-18 degrees correspondingly. Therefore, the inclination angle is twice as large as that of a ceiling fan which is circulated in the market, and the setting angle of the fan blades enables the air volume to be more uniform, the air volume to be larger and the wind noise to be smaller.

In some embodiments, the fan blade is made of an aluminum-plastic composite plate formed by laminating an upper aluminum thin plate, a middle plastic plate and a lower aluminum thin plate, the total thickness of the fan blade is 2.5 mm-4 mm, the thicknesses of the upper aluminum thin plate and the lower aluminum thin plate are both 0.25 mm-0.4 mm, and the thickness of the middle plastic plate is 1.5 mm-3.5 mm. Therefore, the fan blade is temperature-resistant, moisture-proof, light, safe and durable, and is convenient to clean with water.

In some embodiments, the convection type ceiling fan with cooling and heating lighting further comprises a flow-gathering cover and an air-guiding ring, the flow-gathering cover is sleeved on the suspension rod and sequentially covered on the top shell and the bottom shell, the bottom of the flow-gathering cover is fixed on the top shell, inclined air guiding sheets are uniformly distributed on the outer side wall of the flow-gathering cover, the air-guiding ring is sleeved on the suspension rod and covered on the bottom of the flow-gathering cover, the coupler is sleeved with a supporting foot frame, the outer edge of the supporting foot frame is fixed on the inner side wall of the air-guiding ring, and the outer side wall of the air-guiding ring is in an inward concave arc surface shape and is matched with the radian of the outer edge of the air guiding sheet. Therefore, wind generated by the fan blades flows along the axial direction of the suspender to form axial flow wind under the action of the wind guide sheets on the flow gathering cover, and then flows upwards through the wind guide ring, so that the air circulation effect of upward convection and downward convection is facilitated.

In some embodiments, the number of the PTC heating elements and the number of the heat dissipation bodies are the same, the heat dissipation bodies are made of light aluminum alloy, each heat dissipation body comprises an inner cylinder, arc-shaped or straight-shaped heat dissipation fins are uniformly distributed on the outer edge of the inner cylinder, a heat dissipation groove is formed in the bottom of the inner cylinder, the inner cylinder and the heat dissipation fins are both located above a fan blade, each PTC heating element comprises a heating column and a PTC heat-sensitive ceramic sheet, the heating groove is penetrated through the heating column, the PTC heat-sensitive ceramic sheet is inserted into the heating groove, the heating column is arranged in the inner cylinder, and the heating groove and the heat dissipation grooves are in butt joint. Therefore, the PTC thermosensitive ceramic plate conducts electricity and generates heat, transfers heat to the side part of the inner barrel through the heating column, transfers heat to the bottom part of the inner barrel through the heating groove, and radiates heat through the radiating fins.

In some embodiments, to STREAMING changes in temperature lamp decoration ceiling fan still includes gallows, boom pipe and fixed disk, the top gallows of fin, the gallows is U-shaped frame or V-arrangement frame, the gallows is fixed in the fixed disk through the boom pipe, places the induced air circle in the fixed disk, and the fixed disk includes integrated into one piece's fixing base and cover dish, and fixing base, cover dish cup joint in the jib, and the fixing base is fixed in the jib, and the jib is equipped with the through wires hole, and the through wires hole is located in the cover dish, and the boom pipe passes the induced air circle and connects in the cover dish, and the wire that draws forth of each PTC thermal ceramic piece passes boom pipe, cover dish, through wires hole in proper order and wears out from the jib. Therefore, the radiator is hung on the hanging rod through the U-shaped frame and the hanging pipe, the hanging pipe and the sleeve disk are fixed on the hanging rod through the fixing seat, and wiring is conducted through the sleeve disk and the threading hole.

In some embodiments, the heat generating groove and the heat dissipating groove are matched, the heat dissipating groove comprises a round hole and six or four rectangular grooves, one round hole is arranged in the center of the inner cylinder, and the six or four rectangular grooves are symmetrical relative to the center of one round hole. Therefore, the shape of the heat dissipation groove is set, and the heat dissipation effect is improved.

In some embodiments, the heat radiator comprises an annular frame, the annular frame is used for being fixed on a ceiling and is arranged above the fan blades, the fan blades are arranged in the annular frame, the annular frame is uniformly provided with heat dissipation grids, the PTC heating units comprise heating boxes and PTC heating sheets, a heating box is arranged on the outer side of each heat dissipation grid, and the PTC heating sheets are arranged in each heating box. Therefore, the heat dissipation grating, the heating box and the PTC heating plate are installed through the annular frame, so that the heat is uniformly distributed in an annular shape.

The invention can be used all the year round, and integrates ceiling fan, heating, lamp decoration, intelligence, safety, reliability, energy conservation and environmental protection.

Drawings

FIG. 1 is a front cross-sectional view of a first embodiment of the present invention;

FIG. 2 is a schematic plan view of the heat radiator and the PTC heating element shown in FIG. 1;

FIG. 3 is a perspective view of a second embodiment of the present invention;

FIG. 4 is an exploded view of the main body of the ceiling fan of FIG. 3.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

As shown in fig. 1, 3 and 4, the convection type ceiling fan with cold and warm lamp decorations comprises a hanger rod 1, a brushless direct current motor 2, a fan blade 3, an LED lamp decoration 4, a heat sink and a PTC heat-generating body, wherein the heat sink and the PTC heat-generating body are arranged above the fan blade 3, and the heat sink is used for conducting and radiating heat of the PTC heat-generating body. The brushless direct current motor 2 comprises a rotor 21, a stator 22, a rotating shaft 23, a top shell 24 and a bottom shell 25, wherein the top shell 24 covers the bottom shell 25 and is fixedly connected through bolts, the rotor 21 is adhered and tightly attached to the inner walls of the top shell 24 and the bottom shell 25, and two ends of the rotating shaft 23 are respectively installed in the top shell 24 and the bottom shell 25 through 6202 deep groove ball bearings 26. The upper end of the rotating shaft 23 is connected with the suspension rod 1 through the coupling 13, the stator 22 is sleeved on the rotating shaft 23 and fixed and arranged in the top shell 24 and the bottom shell 25, and a rotating gap is arranged between the stator 22 and the rotor 21. The brushless direct current motor 2 is an outer rotor brushless direct current motor, has simple structure, high operation efficiency and low electromagnetic noise, saves energy by 50-90 percent compared with the traditional capacitance split-phase motor with the same specification and the same air quantity, has the lowest operation power of 3W at the rotating speed of 50 revolutions per minute, has the temperature rise of the motor as low as less than or equal to 5-20 degrees, and basically does not heat the motor when running at medium and low speed.

The lower extreme installation LED lamp gadget 4 of pivot 23, and fan blade 3 is located between LED lamp gadget 4, drain pan 25, and fan blade 3 is made by aluminum-plastic composite panel for fan blade 3 is able to bear the temperature, moisture-proof, light safety, durable, intensity is high, and makes things convenient for water washing fan blade 3. The fan blades 3 are all provided with 5 straight blades, each fan blade is made of an aluminum-plastic composite plate formed by laminating an upper aluminum thin plate, a middle plastic plate and a lower aluminum thin plate, the total thickness of the fan blades is 2.5 mm-4 mm, preferably 3.5mm, the thicknesses of the upper aluminum thin plate and the lower aluminum thin plate are 0.25 mm-0.4 mm, preferably 0.3mm, and the thickness of the middle plastic plate is 1.5 mm-3.5 mm, preferably 2.9 mm. The wind quantity is equal when the brushless direct current motor 2 conveniently rotates forwards and backwards, each fan blade 3 is fixed on the bottom shell 25 through the blade fork 5, an inclination angle of 13-18 degrees is formed between each fan blade 3 and each blade fork 5 correspondingly, preferably 18 degrees, the inclination angle is twice as large as that of a ceiling fan circulating in the market, the arrangement angle of the fan blades 3 enables low rotating speed, large wind quantity, silence and low noise (lower than 30db), and the sleeping requirements of children and old people are completely met. The LED lamp ornament 4 adopts an LED lamp and a driver, has long service life, less heat dissipation, safe and reliable use, double-color design of cold light and hot light and obvious energy-saving effect.

The flow-gathering cover 16 is sleeved on the suspension rod 1 and sequentially covered on the top shell 24 and the bottom shell 25, the bottom of the flow-gathering cover 16 is fixed on the top shell 24, inclined air guide sheets 161 are uniformly distributed on the outer side wall of the flow-gathering cover 16, the air-inducing ring 17 is sleeved on the suspension rod 1 and covered on the bottom of the flow-gathering cover 16, the coupling 13 is sleeved with the supporting foot stand 14, the outer edge of the supporting foot stand 14 is fixed on the inner side wall of the air-inducing ring 17, and the outer side wall of the air-inducing ring 17 is in an inward concave arc surface shape and is matched with the radian of the outer edge of the air guide sheet 161. The wind generated by the fan blades 3 flows along the axial direction of the suspender 1 to form axial flow wind under the action of the wind guide sheets 161 on the flow-gathering cover 16, and then flows upwards through the wind guide ring 17, which is beneficial to the air circulation effect of upward convection and downward convection.

As shown in fig. 2, the number of the PTC heating elements and the number of the heat dissipation bodies are 3 to 8, preferably 5, each heat dissipation body is made of light aluminum alloy, each heat dissipation body includes an inner cylinder 6, arc-shaped heat dissipation fins 61 are uniformly distributed on the outer edge of the inner cylinder 6, heat dissipation grooves 62 are formed in the bottom of the inner cylinder 6, the inner cylinder 6 and the heat dissipation fins 61 are both located above one fan blade 3, each PTC heating element includes a heating column 7 and a PTC thermosensitive ceramic sheet 8, the heating column 7 penetrates through the heating grooves, the PTC thermosensitive ceramic sheet 8 is inserted into the heating grooves, the heating column 7 is arranged in the inner cylinder 6, the heating grooves, the heat dissipation grooves 62 are in butt joint, the heating grooves and the heat dissipation grooves 62 are matched, the heat dissipation grooves 62 include a circular hole 621 and six rectangular grooves 622, a circular hole 621 is formed in the center of the inner cylinder 6, and the six rectangular grooves 622 are symmetrical relative to the center of the circular hole 621. The PTC thermal sensitive ceramic plate 8 conducts electricity and generates heat, transfers heat to the side part of the inner cylinder 6 through the heating column 7, transfers heat to the bottom part of the inner cylinder 6 through the heating groove, and conducts and radiates heat through the radiating fins 61.

As shown in fig. 1, a hanging bracket 9 is fixed on the top of the heat sink 61, the hanging bracket 9 is a U-shaped or V-shaped frame, preferably a U-shaped frame, the hanging bracket 9 is fixed on the fixed tray 11 through a hanging tube 10, the fixed tray 11 includes an integrally formed fixed seat 111 and a sleeve tray 112, the fixed seat 111 and the sleeve tray 112 are sleeved on the suspension rod 1, the fixed seat 111 is fixed on the suspension rod 1, the suspension rod 1 is provided with a threading hole 1a, the threading hole 1a is arranged in the sleeve tray 112, the hanging tube 10 is connected to the sleeve tray 112, and the leading-out lead 81 of each PTC thermosensitive ceramic sheet 8 sequentially passes through the hanging tube 10, the sleeve tray 112 and the threading hole 1a and penetrates out of the suspension rod 1.

The PTC heating element is used as a heating element, the highest internal temperature is less than or equal to 260 ℃, the energy is saved by more than 20 percent compared with a nickel-chromium heating element, the PTC heating element has the characteristic of automatically keeping constant temperature, and open fire does not exist, so that the PTC heating element is safe and reliable, high in heat exchange efficiency, energy-saving, capable of automatically adjusting power and long in service life; the heat dissipation adopts the heat dissipation sheet 61 made of aluminum alloy with the thermal coefficient less than or equal to 200 ℃, and the high-temperature resistant polytetrafluoroethylene non-stick coating is coated for decoration protection, so that dust is convenient to clean. The room temperature and heat quantity are directly controlled by the wind speed and wind quantity of the fan blade 3, and the power range can be adjusted from 1KW to 2.5 KW.

The control chip of the convection type ceiling fan with the cold and warm lamp decorations is driven by a three-phase sine wave and non-inductive power module, is provided with remote control of forward and reverse rotation of a brushless direct current motor, overcurrent and overvoltage protection, blocking protection, lightning stroke protection and the like, can be customized for WIFI control, and further has long-term normal operation of wide voltage operation of 150V-250V.

According to the aerodynamic design principle, the wind generated by the rotation of the fan blade 3 circulates the indoor air from top to bottom (summer) or from bottom to top (winter), the wind speed can be randomly adjusted at 0.5 m/s-3 m/s, people feel the same as the nature in the room, the indoor temperature difference can be controlled within 3 ℃, therefore, warm air can be used in winter and cool air can be used in summer, the wind quantity, light and warm air can be intelligently controlled by a control chip, and the forward rotation and reverse rotation of the brushless direct current motor are controlled, namely, the forward rotation in winter blows upwards and the forward rotation in summer blows downwards (a PTC heating element does not work), so that the hot air in winter rises and the cool air in summer fall, and the fan blade 3 blows to achieve the air circulation effect of the upward convection and the downward convection, so that the indoor air is warm in winter and cool in summer and comfortable in body feeling.

Example two

As shown in fig. 3 and 4, the present embodiment is different from the first embodiment in the structure of the heat radiator and the PTC heating element. The heat radiator comprises an annular frame 12, the annular frame 12 is used for being fixed on a ceiling and is arranged above the fan blades 3, the fan blades 3 are arranged in the annular frame 12, heat dissipation gratings 121 are uniformly distributed on the annular frame 12, each PTC heating unit comprises a heating box and a PTC heating sheet, the outer side of each heat dissipation grating 121 is provided with the heating box, each heating box is internally provided with the PTC heating sheet, and the PTC heating sheets are matched with the heat dissipation gratings 121. The heat dissipation grid 121, the heating box and the PTC heating plate are arranged through the annular frame 12, so that the heat is uniformly distributed in an annular shape.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. Convection type ceiling fan with cold and warm lamp decorations, which is characterized by comprising a hanging rod (1), a brushless direct current motor (2), fan blades (3), LED lamp decorations (4), a flow-gathering cover (16), an air-inducing ring (17), a heat radiator and a PTC heating body, wherein the brushless direct current motor (2) comprises a rotor (21), a stator (22), a rotating shaft (23), a top shell (24) and a bottom shell (25), the top shell (24) covers the bottom shell (25), the rotating shaft (23) penetrates through and is installed on the top shell (24) and the bottom shell (25) through a bearing (26), one end of the rotating shaft (23) is connected with the hanging rod (1) through a coupler (13), the LED lamp decorations (4) are installed at the other end of the rotating shaft (23), the stator (22) is sleeved on the rotating shaft (23) and is arranged in the top shell (24) and the bottom shell (25), the rotor (21) is attached to the inner walls of the top shell (24) and the bottom shell (25), a rotating gap is arranged between the stator (22) and the rotor (21), the root of the fan blade (3) is fixed between the LED lamp decoration (4) and the bottom shell (25), a radiator and a PTC heating element are arranged above the fan blade (3), the radiator is used for conducting and radiating heat of the PTC heating element, the flow-gathering cover (16) is sleeved on the suspension rod (1) and sequentially covered on the top shell (24) and the bottom shell (25), the bottom of the flow-gathering cover (16) is fixed on the top shell (24), inclined air guide sheets (161) are uniformly distributed on the outer side wall of the flow-gathering cover (16), the air guide ring (17) is sleeved on the suspension rod (1) and covered on the bottom of the flow-gathering cover (16), the coupler (13) is sleeved with a support foot frame (14), the outer edge of the support foot frame (14) is fixed on the inner side wall of the air guide ring (17), the outer side wall of the air guide ring (17) is in an inward concave shape, and the radian of the outer edge of the air guide sheet (161) is matched.

2. A convection type ceiling fan with cold and warm lamp decoration as claimed in claim 1, wherein the fan blades (3) are 5 straight blades, each fan blade (3) is fixed on the bottom casing (25) through a blade fork (5), and each fan blade (3) correspondingly forms an inclination angle of 13-18 ° with each blade fork (5).

3. A convection type ceiling fan with cold and warm lamp decoration according to claim 2, wherein the fan blades (3) are made of an aluminum-plastic composite plate formed by laminating an upper aluminum sheet, a middle plastic plate and a lower aluminum sheet, the total thickness of the fan blades (3) is 2.5mm to 4mm, the thicknesses of the upper aluminum sheet and the lower aluminum sheet are 0.25mm to 0.4mm, and the thickness of the middle plastic plate is 1.5mm to 3.5 mm.

4. A convection type ceiling fan with heating and cooling lamp decoration as claimed in claim 1, wherein the number of the PTC heating elements and the heat dissipation bodies is the same, the heat dissipation bodies are made of light aluminum alloy, each heat dissipation body comprises an inner tube (6), arc-shaped or straight-shaped heat dissipation fins (61) are evenly distributed on the outer edge of the inner tube (6), heat dissipation grooves (62) are formed in the bottom of the inner tube (6), the inner tube (6) and the heat dissipation fins (61) are located above a fan blade (3), each PTC heating element comprises a heating column (7) and a PTC heat-sensitive ceramic sheet (8), the heating column (7) is communicated with a heating groove, the PTC heat-sensitive ceramic sheet (8) is inserted into the heating groove, the heating column (7) is internally provided with the inner tube (6), and the heating groove and the heat dissipation grooves (62) are butted.

5. A convection type ceiling fan with cold and warm lamp decorations as defined in claim 4, further comprising a hanging bracket (9), a hanging tube (10) and a fixed plate (11), wherein the hanging bracket (9) is fixed on the top of the heat sink (61), the hanging bracket (9) is a U-shaped frame or a V-shaped frame, the hanging bracket (9) is fixed on the fixed plate (11) through the hanging tube (10), the wind-guiding ring (17) is arranged in the fixed plate (11), the fixed plate (11) comprises an integrally formed fixed seat (111) and a sleeve disc (112), the fixed seat (111) and the sleeve disc (112) are sleeved on the hanging rod (1), the fixed seat (111) is fixed on the hanging rod (1), the hanging rod (1) is provided with a threading hole (1a), the threading hole (1a) is arranged in the sleeve disc (112), the hanging tube (10) passes through the wind-guiding ring (17) and is connected to the sleeve disc (112), and the leading-out wire (81) of each PTC heat-sensitive ceramic sheet (8) sequentially passes through the hanging tube (10), The sleeve disc (112) and the threading hole (1a) penetrate out of the suspender (1).

6. A convection type ceiling fan with cold and warm lamp decoration according to claim 5, wherein the heat generating slot and the heat dissipating slot (62) are matched, the heat dissipating slot (62) comprises a circular hole (621) and six or four rectangular slots (622), one circular hole (621) is arranged at the center of the inner barrel (6), and six or four rectangular slots (622) are symmetrical with respect to the center of one circular hole (621).

7. A convection type ceiling fan with cold and warm lamp decoration according to claim 1 or 2, wherein the heat sink comprises an annular frame (12), the annular frame (12) is used for being fixed on a ceiling and is arranged above the fan blades (3), the fan blades (3) are arranged in the annular frame (12), the annular frame (12) is uniformly distributed with heat dissipation grids (121), each PTC heating unit comprises a heating box and a PTC heating sheet, the outer side of each heat dissipation grid (121) is provided with the heating box, and each heating box is internally provided with the PTC heating sheet.