JPS6118572Y2 - - Google Patents

Description

[Detailed explanation of the idea] This proposal concerns a ceiling fan with a power outage light.

Normally, a power outage light turns on at the same time as a commercial power outage, and uses a secondary battery as its power source. However, the charging capacity of secondary batteries decreases when the temperature rises, so when built into a device, it is necessary to install it in a part where the temperature rise is as low as possible. A ceiling fan has a motor inside the fan whose temperature increases during use, and the present proposal is to install the secondary battery in a place where the temperature influence from the motor on the secondary battery installed in the ceiling fan is small. purpose.

The structure of a ceiling fan with a power outage light will be explained below based on the drawings shown in FIGS. 1 to 3. FIG. 1 is a cross-sectional view of the ceiling fan 1 according to the present invention, FIG. 2 is a cross-sectional view of the ceiling fan 1 with the cover 43 removed in FIG.
The figure is an exploded perspective view of the connector 14 portion.

The ceiling fan 1 is equipped with an external rotary motor 4 consisting of an inner stator 2 and an outer stator 3, and a peripheral decorative case 7 is attached by screws 6 to the upper case 5 of the motor in which the outer stator 3 is embedded during molding. and the other screw 8
A plurality of blower blades 9 are mounted radially by....

Reference numeral 10 denotes a cylindrical vertical central shaft which is press-fitted into the center of the inner stator 2 and has a lead wire 11 passed therein.Ball bearings 13, It is inserted through 13. A U-shaped connector 14 is pivotally supported at the lower end of the hanging pipe 15 via a pin 16, and has a terminal 18 for connecting the lead wire 11 and the conducting wire 17 inserted into the hanging pipe 15. A secondary battery board 20 and a power transformer 21 are mounted on which are mounted a secondary battery 55 that serves as a power source for a capacitor 19 and a light bulb 35 of a power outage light. The secondary battery board 20
and the power transformer 21 are attached to the connector 14 via a separate attachment fitting 22. A nut 23 is connected to the lower end of the connector 14, and the upper end threaded portion of the vertical center shaft 10 is screwed into the nut 23, and the side surface of the nut 23 is tightened to prevent the threaded state from loosening. The side surface of the vertical central shaft 10 is pressed by the screws 24, 24 which are screwed together. The terminal 18 is fixed to the connector 14 with a screw 25, and the capacitor 19 is fixed to the connector 14 with a screw 25.
The connecting tool 14 is connected by a band 26 that is hooked to the
be tied to. The mounting fitting 22 is formed into a substantially U-shape. The secondary battery board 20 is fixed to the outer surface of one end of the mounting bracket 22 with screws 28, 28 via a support 27, and the transformer 21 is fixed to the bent piece 29 stretched on the other end surface with the screw 30. ,3
Fixed at 0. Connector 1 of the mounting bracket 22
Screw 31 inserted into the middle part of the fixing fitting to 4
This is done by screwing into the connector 14. When the mounting bracket 22 is attached to the connector 14, the bent piece 29 covers the capacitor 19.

The cylindrical portion 12 of the upper case 5 is pivotally supported by ball bearings 13, 13 which are enclosed around the vertical central axis 10. The ball bearings 13, 13
The vertical central shaft 10 is fitted into the inner ring of the ball bearings 13, the cylindrical part 12 is fitted outside the outer rings of the ball bearings 13, 13, a collar is interposed between the inner rings, and a coil spring is interposed between the outer rings. central axis 10
A cylindrical portion 12 is rotatably supported on the cylindrical portion. This type of shaft support structure is a well-known structure for ceiling fans.
Details are shown in Utility Model Publication No. 56-41115.

Reference numeral 32 denotes a square-type connecting fitting that is attached to the lower surface of the inner stator 2 by caulking the lower end of the vertical central shaft 10, and is formed by bending both sides downward.
Using screws 37, a lamp board 36 to which a lamp 34 of a lighting device and a light bulb 35 of a power outage light are fixed is fixed. A reflective plate 38 is integrally formed in the peripheral decorative case 7, and the lamp 34 and the light bulb 35 are exposed through an insertion hole 39 formed in the center of the reflective plate 38. The lamp board 36
A cylindrical support rod 40 is vertically installed in the center, and a screw 41 screwed into the lower end of the cylindrical support rod 40 forms a translucent hemispherical decoration that covers the lamp 34, light bulb 35, and reflector plate 38. A cover 42 is attached. Reference numeral 43 denotes a cover that covers the connector 14. The cover 43 is attached to the hanging pipe 15 so as to be vertically movable, and is fixed to the pipe 15 with a screw 44. The operation control of the motor 4 and the ON/OFF control of the lamp 34 are performed by a switch fixed to the room wall by passing a control cord through the hanging pipe 15 and wiring it along the inside or outside of the room wall. It is done. If the switch is installed in a location where wiring of the control cord is not possible, the switch may be fixed to the connection fitting 32 and the operating pull string of the switch may be allowed to hang down through the cylindrical support rod 40.

The ceiling fan 1 is a hanging pipe 1 hanging from the ceiling.
5, a connector 14, and a ceiling fan main body. The ceiling fan body is a general term for all the members supported by the connector 14, and the main components include the external rotating motor 4, the blower blades 9, the power outage light, and the decorative cover 42.
There is. The power outage light has components installed in a distributed manner and includes the power transformer 21, the secondary battery board 20, and the light bulb 35.

Next, the electric circuit of the power outage light and the ceiling fan 1 will be explained based on FIG. The electric circuit includes a power supply circuit 47 having a power transformer 21 whose primary side 45 is connected to a commercial power supply 46, a load circuit 48 connected to the primary side 45 of the power supply circuit 47, and the power transformer 2.
1 and a charging/discharging circuit 50 connected to the secondary side 49 of the battery.

The load circuit 48 has the lamp 34 and the control switch 51 for the lamp 34 connected in series, the motor 4 and the control switch 52 for the motor 4 connected in series, and each connected in parallel.

The charging/discharging circuit 50 includes a cathode of a rectifying diode 54, a positive terminal of a secondary battery 55, a negative terminal of the secondary battery 55, and a backflow prevention diode 56.
and the backflow prevention diode 56.
The cathode of the rectifying diode 54 is connected to the charging current adjusting resistor 57, thereby forming a charging circuit section in which the diode 54, the secondary battery 55, the diode 56, and the resistor 57 are successively connected in series. One terminal 58 of the secondary side 49 of the power transformer 21 and the open end of the resistor 57 are connected to the other terminal 59 of the secondary side 49, respectively. The charge/discharge circuit 50 has a discharge circuit section connected in parallel with the secondary battery 55, and the discharge circuit section connects one terminal of the light bulb 35, the collector of the control transistor 60, and the emitter of the transistor 60. are connected in series. The base of the control transistor 60 is connected to the backflow prevention diode 56.
connected to the anode of the A bias resistor 61 and a smoothing capacitor 62 are connected in parallel to the secondary battery 55 and the backflow prevention diode 56 between the cathode of the control diode 54 and the backflow prevention diode 56. .

Next, the operation of the electric circuit will be explained.

The circuit is connected to a commercial power source 46. By appropriately opening and closing the switches 51 and 52, the lamp 34 can be turned on and off, and the motor 4 can be operated and stopped. Only one half wave of the secondary voltage taken out from the secondary side 49 of the power transformer 21 is taken out by the rectifying diode 54 and smoothed by the smoothing capacitor 62 to charge the secondary battery 55. At this time, the anode of the backflow prevention diode 56 has a higher potential than the cathode, and since the base of the control transistor 60 is connected to the anode and the emitter is connected to the cathode, the emitter side has a higher potential than the base side. , the transistor 60 is reverse biased and turned off, and the secondary battery 55 is charged, but the light bulb 35 remains unlit. When the commercial power supply 46 is out of power, the motor 4 stops, the lamp 34 goes out, and no secondary voltage is generated on the secondary side 49 of the power transformer 21.
Therefore, charging of the secondary battery 55 is stopped. In this state, a base current flows from the positive electrode of the secondary battery 55 to the base of the control transistor 60 via the bias resistor 61, and from the emitter of the transistor 60 to the negative electrode of the secondary battery 55. Transistor 60 turns on. Therefore, the power source 35 is turned on using the secondary battery 55 as a power source.

Various electronic components such as a secondary battery 55 excluding the light bulb 35 of the charging/discharging circuit 50 are mounted on the secondary battery board 20. The mounting structure is carried out by a well-known attachment means to a printed circuit board, and is carried out by soldering. Although the secondary battery 55 differs depending on the structure of the battery, it may be installed in a battery case mounted on a printed circuit board or soldered to a terminal board protruding from a printed circuit board. Implemented.

FIG. 5 is a sectional view showing a reference example that was considered before the invention of the present invention. The characteristics of the present invention will be made clearer by explaining the reference example and clarifying its shortcomings. The reference embodiment is different from the present embodiment only in the arrangement of the power outage light, and the other parts of the structure are designated by the same reference numerals in FIG. 5 and will not be described further.

Connection fitting 3 attached to the center of the bottom surface of the inner stator 2
Power transformer 21 is attached to the lamp board 36 fixed to 2.
The ambient temperature of the secondary battery board 20 rises due to the heat generated by the external rotor motor 7 and the heat generated by the lamp 34, and the high temperature increases the charging capacity of the secondary battery 55. decreases. Although the reference embodiment can be said to be superior to the present invention in terms of design and assembly, it has the disadvantage that it cannot fully function as a ceiling fan 1 with a power outage light.

As described above, the present invention connects the hanging pipe and the ceiling fan body through a connector, and arranges a power outage light bulb in the lower half of the ceiling fan body, so that the bulb functions as illumination when the bulb is turned on. The secondary battery, whose charging capacity decreases when it reaches high temperatures, is installed in a connector separate from the ceiling fan body, which gets hot, so that it is possible to prevent the charging capacity from decreasing, and it also has practical effects such as concentrating electrical wiring. It is a big thing.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the proposed ceiling fan, Figure 2 is a cross-sectional view of Figure 1, Figure 3 is an exploded perspective view of the main parts, and Figure 4 is a cross-sectional view of the ceiling fan according to the present invention.
The figure is an electric circuit diagram, and FIG. 5 is a cross-sectional view of a ceiling fan according to a reference example shown to clarify the present invention. 15... Hanging pipe, 14... Connector, 35...
...Light bulb, 55...Secondary battery.

Claims (1)

[Scope of utility model registration request] A hanging pipe hanging from the ceiling is connected to the center of the upper half of the ceiling fan body through a connector, and a light bulb for a power outage light that is turned on in the event of a power outage is disposed in the lower half of the ceiling fan body, and the connection A ceiling fan with a power outage light, in which a secondary battery for a power outage light, which serves as a power source for the light bulb, is disposed in the fixture.