Driving assembly for fan, fan and fan lamp

Abstract

The utility model discloses a driving assembly used on a fan, the fan and a fan lamp. The driving assembly comprises a shell, a cover plate and a head shaking motor. The head shaking piece is provided with a base and a rotating shaft eccentrically arranged relative to the base, and the rotating shaft is connected with the head shaking motor; the number of the power connection rings is at least two, each power connection ring comprises an inner ring, an outer ring and a ball located between the inner ring and the outer ring, the inner ring can rotate relative to the outer ring, the inner ring is arranged on the rotating shaft of the head shaking piece in a sleeving mode, and the outer ring is fixedly connected with the cover plate; the fan blade motor is fixed on the base of the head shaking piece, and a driving shaft is arranged on the fan blade motor; the number of the mains supply wires is at least two, and each mains supply wire is correspondingly connected to the outer ring of one power connection ring; the number of the motor wires is at least two, each motor wire is correspondingly connected to the inner ring of one power connection ring, the motor wires are connected with the fan blade motor, and the motor wires are electrically connected with the mains supply wire through the inner rings, the balls and the outer rings. And fatigue fracture or loosening of welding points caused by winding or pulling of the motor wire can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a driving component used on a fan, a fan, and a fan lamp. Background Art

[0002] The fan is used for blowing air. In order to increase the blowing surface, a shaking mechanism is generally provided on the fan, so that the fan shakes its head while blowing air to change the blowing position.

[0003] Taking the ceiling fan installed on the ceiling as an example, it has two motors, one of which is a fan motor for driving the fan blades to rotate at high speed, and the other motor is a shaking motor for driving the fan head (including the fan blades and the fan motor) to shake. For this reason, the fan motor needs to be connected with a wire to power it. In the existing technology, one end of the wire is connected to the fan motor and the other end of the wire is connected to the mains, so that one end of the wire is in a stationary state and the other end shakes its head cyclically with the fan head. This can easily cause the wire to be entangled on other components and be pulled during the cyclic movement of the fan head. Moreover, one end of the wire will always be pulled during the cyclic movement of the fan head, and the pulling force changes cyclically. After long-term use, it is easy to cause the wire to fatigue and break under the repeated action of the pulling force, or the welding point between the wire and the fan motor will become loose, causing the fan to malfunction.

[0004] Therefore, it is necessary to improve and optimize the existing fan structure. Utility Model Content

[0005] The present invention aims to solve at least one of the problems in the prior art. To this end, the present invention provides a drive assembly for a fan, a fan, and a fan light, wherein the motor wires are not entangled or pulled to cause fatigue fracture or loosening of welding points.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] In a first aspect, an embodiment of the present invention provides a drive assembly for a fan, comprising:

[0008] a housing, wherein the upper end of the housing is open;

[0009] a cover plate, covering the opening of the shell and fixedly connected to the shell;

[0010] A shaking motor is arranged on the cover;

[0011] An oscillating member comprises a base and a rotating shaft arranged on the base, wherein the rotating shaft is eccentrically arranged relative to the base, the rotating shaft is connected to the oscillating motor, and is driven by the oscillating motor;

[0012] There are at least two power connection rings, each including an inner ring, an outer ring, and a ball located between the inner ring and the outer ring. The inner ring is rotatable relative to the outer ring, the inner ring is sleeved on the rotating shaft of the oscillating element, and the outer ring is fixedly connected to the cover plate;

[0013] A fan motor is fixed on the base of the oscillating element, and a drive shaft is provided on the fan motor;

[0014] There are at least two mains power conductors, each of which is connected to the outer ring of a corresponding power ring;

[0015] There are at least two motor wires, each motor wire is connected to the inner ring of a power ring, the motor wire is connected to the fan motor, and the motor wire is electrically connected to the mains wire through the inner ring, the ball, and the outer ring.

[0016] Optionally, there are three power connection rings, and three mains power conductors and three motor conductors respectively.

[0017] Optionally, a first wire groove is provided on the rotating shaft, and the first wire groove extends along the axial direction of the rotating shaft. A plurality of second wire grooves are also provided on the rotating shaft, and the second wire grooves are connected to the first wire grooves and extend along the circumference of the rotating shaft. The motor wire is provided in the first wire groove and connected to the inner ring through the second wire groove.

[0018] Optionally, the cover plate includes a first cover plate and a second cover plate, each of the first cover plate and the second cover plate is provided with a half shell, the two half shells enclose to form a clamping cavity, the power ring is provided in the clamping cavity and is clamped and fixed by the half shells.

[0019] Optionally, a clamping groove is provided on the cavity wall of the clamping cavity, the number of the clamping grooves corresponds to the number of the power connection rings, and the outer ring of the power connection ring is fixed in the clamping groove.

[0020] Optionally, a groove is provided at the lower end of the shell, a through hole is provided on the bottom wall of the groove, a ball bearing sleeve is provided in the groove, and the lower part of the ball bearing sleeve is located in the through hole. A pressure plate is also included, which is fixed on the shell, and a rotating cavity is formed between the pressure plate and the groove. The ball bearing sleeve is located in the rotating cavity, and the drive shaft of the fan motor passes through the ball bearing sleeve and then extends out of the shell, and a bearing is provided between the drive shaft and the ball bearing sleeve.

[0021] Optionally, a limiting column is provided on the outer peripheral wall of the ball bearing sleeve, and a limiting groove is provided on the side of the pressure plate close to the rotating chamber. The limiting column is located in the limiting groove to limit the lateral rotation of the ball bearing sleeve around the drive shaft.

[0022] Optionally, the number of groups of the limiting posts and limiting grooves is 4, and the limiting posts are evenly distributed on the outer peripheral wall of the ball bearing sleeve in the circumferential direction.

[0023] In a second aspect, an embodiment of the present invention provides a fan, comprising the drive assembly described in any one of the embodiments of the first aspect, wherein the drive shaft is connected to the fan blades.

[0024] In a third aspect, an embodiment of the present invention provides a fan light, comprising the fan described in the embodiment of the second aspect above, wherein a lighting assembly is provided on the fan.

[0025] The present invention has at least one of the following beneficial effects: the present invention embodiment provides an oscillating head piece, the oscillating head piece has a base and a rotating shaft arranged on the base, the rotating shaft is eccentrically arranged relative to the base, the rotating shaft is connected to the oscillating head motor, and is driven by the oscillating head motor; there are at least two power connecting rings, the power connecting rings include an inner ring, an outer ring, and a ball located between the inner ring and the outer ring, the inner ring can rotate relative to the outer ring, the inner ring is sleeved on the rotating shaft of the oscillating head piece, and the outer ring is fixedly connected to the cover plate; the fan motor is fixed on the base of the oscillating head piece, and a drive shaft is provided on the fan motor; there are at least two AC power conductors, each of which is connected to the outer ring of a power connecting ring; there are at least two motor conductors, each of which is connected to the inner ring of a power connecting ring, the motor conductors are connected to the fan motor, and the motor conductors are electrically connected to the AC power conductors through the inner ring, the ball and the outer ring, which abandons the structure of directly connecting the motor conductors to the AC power in the prior art, and cleverly divides the conductors supplying power to the fan motor into two parts: the AC power conductors and the motor conductors. The two are divided into two parts, and the electrical connection is achieved through an electrical connecting ring with an inner ring, a ball and an outer ring. When the shaking head motor is working, it drives the rotating shaft to rotate, and the rotating shaft drives the fan motor to rotate through the base to realize the shaking head function. While the fan motor is rotating, the motor wire connected to it and the inner ring connected to the motor wire all move synchronously with the fan motor, that is, the motor wire and the fan motor remain synchronized and relatively stationary, so that the motor wire will not be pulled or entangled, and the motor wire is electrically connected to the mains wire through the inner ring, the ball and the outer ring. No matter where the shaking head moves to, the motor wire and the mains wire always maintain a good electrical connection, thereby greatly improving the service life of the motor wire. In addition, the inner ring and the outer ring of the electrical connecting ring are connected by the ball, the mains wire is directly connected to the outer ring, and the motor wire is directly connected to the inner ring, so that there is only wear between the mains wire and the motor wire between the inner ring and the outer ring, and the presence of the ball makes the wear extremely small, ensuring the reliability and durability of the electrical connection of the fan drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the drive assembly in the embodiment of the present utility model;

[0027] Figure 2yes Figure 1 Schematic diagram from another angle;

[0028] Figure 3 yes Figure 1 A schematic cross-sectional view of the structure shown;

[0029] Figure 3.1 yes Figure 3 A partial enlarged view of middle A;

[0030] Figure 4 yes Figure 1 The structure shown is a schematic diagram of the internal structure after the shell, cover and other components are hidden (the placement angle is different from the Figure 1 different);

[0031] Figure 5 This is a schematic diagram of the connection structure between the power ring, the mains wire, and the motor wire in the embodiment of the utility model;

[0032] Figure 6 yes Figure 1 The structure shown is a schematic diagram of the internal structure after the shell and other components are hidden (the placement angle is different from the Figure 1 different);

[0033] Figure 7 This is a schematic diagram of the cross-sectional structure of the cover plate in an embodiment of the present utility model;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the pressing plate in the embodiment of the present utility model;

[0035] Figure 9 yes Figure 8 Schematic diagram from another angle;

[0036] Figure 10 This is a schematic diagram of the three-dimensional structure of the ball bearing sleeve in the embodiment of the present utility model;

[0037] Figure 11 It is a schematic diagram of the three-dimensional structure of the shaking head in the embodiment of the utility model.

[0038] Description of Figure Numbers:

[0039] 1-shell, 11-sink, 2-cover, 21-first cover, 22-second cover, 23-half shell, 24-clamping cavity, 25-clamping slot, 3-shaking motor, 4-shaking member, 41-base, 42-rotating shaft, 421-first wire slot, 422-second wire slot, 5-connecting ring, 51-inner ring, 52-outer ring, 53-ball, 6-fan motor, 61-drive shaft, 7-mains wire, 8-motor wire, 9-ball bearing sleeve, 91-bearing, 92-limiting column, 10-pressure plate, 101-limiting slot. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is any conflict, the embodiments and features in the embodiments described below can be combined with each other in any manner.

[0041] Many different implementations or examples are provided below to implement the structure of the present invention.

[0042] See also Figures 1-11, the first embodiment of the present invention provides a driving component for a fan, including a shell 1, which can be made of plastic parts to reduce cost and weight, and the upper end of the shell 1 is open; a cover plate 2, which is covered on the opening of the shell 1 and fixedly connected to the shell 1. In this embodiment, the cover plate 2 is fixed to the shell 1 by a number of screws; an oscillating motor 3 is fixed to the top of the cover plate 2 by screws; an oscillating member 4, which has a base 41 and a rotating shaft 42 arranged on the base 41, and the rotating shaft 42 is eccentrically arranged relative to the base 41. In this embodiment, the base 41 is roughly circular, and the rotating shaft 42 is integrally formed with the base 41 and is located near the edge of the base 41. A number of ears are provided on the base 41, and the ears are used to fix the following fan motor, the rotating shaft 42 is connected to the oscillating motor 3 and driven by the oscillating motor 3. The rotating speed of the oscillating motor 3 is slow, which drives the rotating shaft 42 to rotate slowly; there are at least two power rings 5, and in this embodiment, three are set. The power ring 5 includes an inner ring 51, an outer ring 52, and a ball 53 located between the inner ring 51 and the outer ring 52. There are multiple balls 53 between the inner ring 51 and the outer ring 52. The inner ring 51 can rotate relative to the outer ring 52 through the ball 53. The inner ring 51 is sleeved on the rotating shaft 42 of the shaking member 4, and the outer ring 52 is fixedly connected to the cover plate 2. When the shaking motor 3 is working, the inner ring 51 is linked with the rotating shaft 42, and the outer ring 52 remains stationary; the fan motor 6 is fixed to the base 4 of the shaking member 4. 1, specifically connected to the lug of the base 41 by screws, the fan motor 6 is provided with a drive shaft 61, which is used to connect the fan blades to drive the fan blades to rotate at high speed to supply air; it also includes a mains power conductor 7, at least two, in this embodiment, set to three, respectively, the positive and negative poles and the ground wire (3-phase electricity), it can be understood that the mains power conductor 7 does not require direct connection to the high-voltage mains. In this embodiment, the fan motor is a low-voltage motor, so the mains power conductor 7 is connected to the transformer and frequency converter. Each mains power conductor 7 is correspondingly connected to the outer ring 52 of the power ring 5, and the mains power conductor 7 can be welded to the outer ring 52; it also includes a motor conductor 8, at least two, in this embodiment, set to three, each motor conductor 8 is correspondingly connected to the inner ring 51 of the power ring 5, specifically can be welded, the motor conductor 8 is connected to the fan motor 6, supplies power to the fan motor 6, and the motor conductor 8 is electrically connected to the mains power conductor 7 through the inner ring 51, the ball 53, and the outer ring 52.

[0043] The working principle of the embodiment of the utility model is as follows: when the fan starts the shaking function, the shaking motor 3 works, driving the rotating shaft 42 to rotate, and the rotating shaft 42 drives the fan motor 6 to rotate through the base 41 to realize the shaking function. While the fan motor 6 is rotating, the motor wire 8 connected thereto and the inner ring 51 connected to the motor wire 8 all move synchronously with the fan motor 6, that is, the motor wire 8 and the fan motor 6 remain synchronous and relatively still, so that the motor wire 8 will not be pulled or entangled, and the motor wire 8 is electrically connected to the mains wire 7 through the inner ring 51, the ball 53 and the outer ring 52. No matter where the shaking piece 4 moves to, the motor wire 8 and the mains wire 7 always maintain a good electrical connection, eliminating the problem of In the prior art, the structure of directly connecting the motor wire to the mains power cleverly divides the wire supplying power to the fan motor 6 into two parts: the mains wire 7 and the motor wire 8. The two are then electrically connected through a connecting ring 5 having an inner ring 51, a ball 53 and an outer ring 52, which greatly improves the service life of the motor wire. In addition, the inner ring 51 and the outer ring 52 of the connecting ring 5 are connected by the ball 53, the mains wire 7 is directly connected to the outer ring 52, and the motor wire 8 is directly connected to the inner ring 51, so that there is wear between the mains wire 7 and the motor wire 8 only between the inner ring 51 and the outer ring 52, and the presence of the ball makes the wear extremely small, thereby ensuring the reliability and durability of the electrical connection of the fan drive assembly.

[0044] See Figure 11 and Figure 5 As shown, in some embodiments of the present invention, a first wire groove 421 is provided on the rotating shaft 42, and the first wire groove 421 extends along the axial direction of the rotating shaft 42. A plurality of second wire grooves 422 are further provided on the rotating shaft 42, which are set to three in this embodiment. The second wire groove 422 is connected to the first wire groove 421, and the second wire groove 422 extends along the circumference of the rotating shaft 42. Three motor wires 8 are arranged together in the first wire groove 421, and each motor wire 8 extends to be welded to the inner ring 51 through a second wire groove 422. As a result, the welding points of the three motor wires 8 and the corresponding inner ring 51 are cleverly isolated to avoid short circuits between the motor wires 8 due to their close distance. At the same time, as shown in FIG. Figure 5 As shown, the motor wire 8 can pass through the inner side of the inner ring 51 and be easily welded to the inner ring.

[0045] See Figure 3 、 Figure 6 and Figure 7As shown, in some embodiments of the present invention, the cover plate 2 includes a first cover plate 21 and a second cover plate 22, and a half shell 23 is respectively provided on the first cover plate 21 and the second cover plate 22, and the two half shells 23 enclose a clamping cavity, and the power connection ring 5 is arranged in the clamping cavity 24 and is clamped and fixed by the half shell 23. The half shell 23 and the cover plate are integrally formed. After the two half shells 23 are closed, they are locked by bolts, thereby making it easy to install the power connection ring 5 on the cover plate 2, and the power connection ring 5 can be firmly and reliably clamped and fixed by the locking bolts, effectively preventing the outer ring 52 from loosening or being driven by the rotating inner ring 51, thereby ensuring the stability and reliability of the connection between the outer ring 52 and the mains conductor 7. It can be understood that an avoidance hole is provided on the half shell 23 to allow the mains conductor 7 to pass through the avoidance hole and be welded to the outer ring 52. In some embodiments of the present invention, a clamping groove 25 is provided on the cavity wall of the clamping cavity 24, and the number of the clamping grooves 25 corresponds to the number of the connecting rings 5. The outer ring 52 of the connecting ring 5 is fixed in the clamping groove 25, and the clamping groove 25 simultaneously limits the axial and radial directions of the connecting ring 5 to better improve the reliability of the connecting ring 5 after installation.

[0046] See Figure 3 As shown, in some embodiments of the present invention, a groove 11 is provided at the lower end of the shell 1, and a through hole is provided on the bottom wall of the groove 11. A ball bearing sleeve 9 is provided in the groove 11, and the lower part of the ball bearing sleeve 9 is located in the through hole. A pressure plate 10 is also included, and the pressure plate 10 is fixed on the shell 1, specifically by screws. A rotating cavity is formed between the pressure plate 10 and the groove 11, and the ball bearing sleeve 9 is located in the rotating cavity. The drive shaft 61 of the fan motor 6 passes through the ball bearing sleeve 9 and then extends out of the shell 1, and a bearing 91 is provided between the drive shaft 61 and the ball bearing sleeve 9. The working principle is as follows: the upper end of the fan motor 6 is connected to the base 41 of the oscillating member 4. Since the base 41 is eccentric relative to the rotating shaft 42, the fan motor 6 rotates around the rotating shaft 42. The lower end of the fan motor 6 is connected to the ball bearing sleeve 9 through the drive shaft 61, so that the fan motor 6 rotates around the rotating shaft 42 with the ball bearing sleeve 9 as the fulcrum. The ball bearing sleeve 9 rotates up and down in the rotating cavity as the drive shaft 61 swings circumferentially, causing the fan blades connected to the bottom end of the drive shaft 61 to oscillate. The provision of structures such as the ball bearing sleeve 9 reduces friction and helps to increase the service life of the drive assembly.

[0047] See Figure 3 as well as Figures 8-10As shown, in some embodiments of the present invention, a limiting post 92 is provided on the outer peripheral wall of the ball bearing sleeve 9, and a limiting groove 101 is provided on the side of the pressure plate 10 close to the rotating chamber. The limiting post 92 is located in the limiting groove 101 to limit the lateral rotation of the ball bearing sleeve 9 around the drive shaft, that is, the ball bearing sleeve 9 can only rotate up and down in the rotating chamber, but not horizontally, to ensure that the fan blade connected to the end of the drive shaft 61 has a complete and accurate 360° shaking. In some embodiments of the present invention, the number of groups of the limiting posts 92 and the limiting grooves 101 is 4, and the limiting posts 92 are evenly distributed circumferentially on the outer peripheral wall of the ball bearing sleeve 9.

[0048] An embodiment of the second aspect of the present invention provides a fan, comprising the drive assembly described in any one of the embodiments of the first aspect, wherein the drive shaft is connected to fan blades (not shown in the drawings).

[0049] An embodiment of a third aspect of the present invention provides a fan lamp, comprising the fan described in the embodiment of the second aspect, wherein the fan is provided with a lighting assembly (not shown in the drawings).

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A drive assembly for a fan, characterized in that: include: a housing, wherein the upper end of the housing is open; a cover plate, covering the opening of the shell and fixedly connected to the shell; A shaking motor is arranged on the cover; An oscillating member comprises a base and a rotating shaft arranged on the base, wherein the rotating shaft is eccentrically arranged relative to the base, the rotating shaft is connected to the oscillating motor, and is driven by the oscillating motor; There are at least two power connection rings, each including an inner ring, an outer ring, and a ball located between the inner ring and the outer ring. The inner ring is rotatable relative to the outer ring, the inner ring is sleeved on the rotating shaft of the oscillating element, and the outer ring is fixedly connected to the cover plate; A fan motor is fixed on the base of the oscillating element, and a drive shaft is provided on the fan motor; There are at least two mains power conductors, each of which is connected to the outer ring of a corresponding power ring; There are at least two motor wires, each motor wire is connected to the inner ring of a power ring, the motor wire is connected to the fan motor, and the motor wire is electrically connected to the mains wire through the inner ring, the ball, and the outer ring.

2. A drive assembly for a fan according to claim 1, characterized in that: There are three power connection rings, and three mains conductors and three motor conductors respectively.

3. A drive assembly for a fan according to claim 1 or 2, characterized in that: The rotating shaft is provided with a first wire groove, which extends along the axial direction of the rotating shaft. The rotating shaft is also provided with a plurality of second wire grooves, which are connected to the first wire grooves and extend along the circumference of the rotating shaft. The motor wire is provided in the first wire groove and is connected to the inner ring through the second wire grooves.

4. A drive assembly for a fan according to claim 1 or 2, characterized in that: The cover plate includes a first cover plate and a second cover plate. The first cover plate and the second cover plate are each provided with a half shell. The two half shells enclose to form a clamping cavity. The power ring is provided in the clamping cavity and is clamped and fixed by the half shells.

5. A drive assembly for a fan according to claim 4, characterized in that: Clamping grooves are provided on the cavity wall of the clamping cavity. The number of the clamping grooves corresponds to the number of the connecting rings. The outer rings of the connecting rings are fixed in the clamping grooves.

6. The drive assembly for a fan according to claim 1, characterized in that: The lower end of the shell is provided with a sinking groove, and the bottom wall of the sinking groove is provided with a through hole. A ball bearing sleeve is provided in the sinking groove, and the lower part of the ball bearing sleeve is located in the through hole. The shell also includes a pressure plate, which is fixed on the shell. A rotating cavity is formed between the pressure plate and the sinking groove. The ball bearing sleeve is located in the rotating cavity. The driving shaft of the fan motor passes through the ball bearing sleeve and then extends out of the shell. A bearing is provided between the driving shaft and the ball bearing sleeve.

7. A drive assembly for a fan according to claim 6, characterized in that: A limiting column is provided on the outer peripheral wall of the ball bearing sleeve, and a limiting groove is provided on the side of the pressure plate close to the rotation cavity. The limiting column is located in the limiting groove to limit the lateral rotation of the ball bearing sleeve around the drive shaft.

8. The drive assembly for a fan according to claim 7, characterized in that: The number of groups of the limiting posts and limiting grooves is 4, and the limiting posts are evenly distributed on the outer peripheral wall of the ball bearing sleeve in the circumferential direction.

9. A fan, characterized in that: The drive assembly comprises the drive assembly according to any one of claims 1 to 8, wherein the drive shaft is connected to the fan blades.

10. A fan light, characterized in that: The fan according to claim 9 is provided with a lighting assembly.

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