JP4253103B2 - Equipment with electric dust collector and negative ion generator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device equipped with an electrostatic precipitator and the negative ion generator.
[0002]
[Prior art]
There is an apparatus such as an air conditioner that includes an electric dust collector that removes dust and dirt in the air and a negative ion generator that emits negative ions in the air.
[0003]
This device is equipped with a power supply unit that outputs an operating voltage for an electrostatic precipitator and a power supply unit that outputs an operating voltage for a negative ion generator. That is, as shown in FIG. 3, the electrostatic precipitator power supply unit 2 and the negative ion generator power supply unit 4 are connected to the control controller 1.
[0004]
The electric dust collector power supply unit 2 outputs an operating voltage for the electrode unit of the electric dust collector 3. The electric dust collector 3 is operated by this operating voltage, and dust and dirt in the air are removed.
[0005]
The negative ion driving unit 4 outputs an operating voltage for the electrode unit of the negative ion generator 5. The negative ion generator 5 operates by this operating voltage, and negative ions are released into the air. This negative ion is effective in improving human health.
[0006]
[Problems to be solved by the invention]
As described above, a device including the electrostatic precipitator 3 and the negative ion generator 5 requires a space for mounting the two power supply units 2 and 4, and thus limits the downsizing of the device shape. There is also a problem that the number of wires between the control controller 1 and each of the power supply units 2 and 4 increases and the assembly process becomes complicated.
[0007]
The present invention considers the above-described circumstances, and an object, size of the device shape can reduce the mounting space, reduces the number of wires, and an electrostatic precipitator and negative ions such as can be achieved simplification of the assembly process The object is to provide an apparatus comprising a generator .
[0008]
[Means for Solving the Problems]
The device including the electrostatic precipitator and the negative ion generator according to the first aspect of the invention operates with an operating voltage applied to the electrode section and removes dust and dirt in the air, and operates with an operating voltage applied to the electrode section . A negative ion generator that emits negative ions in the air; a transformer having a primary winding and a secondary winding; a switching circuit that converts a DC voltage into an AC voltage by switching using the primary winding as a component; Common power supply comprising an abnormality detection circuit connected to the secondary winding, a first rectification circuit that rectifies the voltage generated in the secondary winding, and a second rectification circuit that rectifies the voltage generated in the secondary winding Unit, the common power supply unit, a power supply line for outputting a DC voltage, an abnormality signal line for transmitting an abnormality signal of the abnormality detection circuit, and a control signal for exciting the switching circuit And it comprises a control for controller connected by in, the. The voltage rectified by the first rectifier circuit is output as an operating voltage for the electric dust collector by the control signal of the control controller, and the voltage rectified by the second rectifier circuit of the common power supply unit Is output as an operating voltage for the negative ion generator.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawing, the same parts as those in FIG.
[0013]
As shown in FIG. 1, a common power supply unit 10 is connected to the control controller 1 through DC power supply lines L1, L2, a control signal line L3, and an abnormal signal line L4.
[0014]
The control controller 1 outputs a DC voltage between the DC power supply lines L1 and L2, and outputs a signal for exciting the switching circuit to the control signal line L3.
[0015]
The common power supply unit 10 includes a step-up transformer 11 having primary windings 11a and 11b and a secondary winding 11c, and the DC power supply lines L1 and L2 using the primary winding 11a of the transformer 11 as a constituent element. A switching circuit that converts a DC voltage into an AC voltage, and a voltage generated in the secondary winding 11c (between one end and the intermediate tap t) based on the output of the switching circuit is rectified by a diode 13 and a smoothing capacitor 14. 1 rectifier circuit, a secondary winding 11c (between the intermediate tap t and the other end) is connected to a second rectifier circuit that rectifies the voltage generated by the diode 17 and the smoothing capacitor 18 and the primary winding 11b. The abnormality detection circuit 19 is provided.
[0016]
In addition to the primary winding 11a, the switching circuit includes a resonance capacitor (not shown) and a switching transistor 12, and the transistor 12 is turned on and off in accordance with a signal from the control signal line L3. Thus, the DC voltage between the DC power supply lines L1 and L2 is converted into an AC voltage having a predetermined frequency.
[0017]
The voltage rectified by the first rectifier circuit is supplied to the electrostatic precipitator electrode unit 3 as the operating voltage of the level as it is, and the electrostatic precipitator electrode is used as the operating voltage of a predetermined level divided by the resistors 15 and 16. Supplied to section 3.
[0018]
The voltage rectified by the second rectifier circuit is supplied to the negative ion generator 5 as an operating voltage.
[0019]
The abnormality detection circuit 19 detects an abnormality in the electrostatic precipitator 3 and the negative ion generator 5 through the transformer 11. This detection result is transmitted to the control controller 1 via the abnormal signal line L4.
[0020]
According to such a configuration, the electrostatic precipitator 3 and the negative ion generator 5 can be driven by one common power supply unit 10. The mounting space for the common power supply unit 10 is greatly reduced as compared with the case where two power supply units are mounted as in the prior art. Therefore, the apparatus shape can be reduced. In addition, the number of wires between the control controller 1 and the common power supply unit 10 is greatly reduced as compared with the case where two power supply units are mounted as in the prior art. This leads to simplification of the assembly process and also to cost reduction.
[0021]
Since the abnormality of the electric dust collector 3 and the negative ion generator 5 is detected by the common abnormality detection circuit 19, the cost can be reduced also in this respect.
[0022]
As shown in FIG. 2, the transformer 11 is provided with another secondary winding 11d, the first rectification circuit is connected to the secondary winding 11c, and the second rectification circuit is connected to the secondary winding 11d. It is good also as a structure to connect, and when using only any one of the negative ion generator 5 and the electrostatic precipitator 3, you may comprise so that the other power supply circuit can be removed.
[0023]
In addition, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention.
[0024]
【The invention's effect】
As described above, according to the present invention, there is provided an apparatus including an electrostatic precipitator and a negative ion generator capable of reducing the mounting space, reducing the size of the apparatus, reducing the number of wires, and simplifying the assembly process. it can.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment.
FIG. 2 is a block diagram showing a configuration of a modified example of the embodiment.
FIG. 3 is a block diagram showing a conventional configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Control controller, 3 ... Electric dust collector, 5 ... Negative ion generator, 10 ... Common power supply unit, 11 ... Transformer, 12 ... Switching transistor, 13, 17 ... Capacitor, 14, 18 ... Smoothing capacitor, 19 ... Abnormality detection circuit

Claims (1)

An electrostatic precipitator that operates with the operating voltage to the electrode and removes dust and dirt in the air;
A negative ion generator that operates according to the operating voltage to the electrode and emits negative ions in the air;
A transformer having a primary winding and a secondary winding, a switching circuit for converting a DC voltage into an AC voltage by switching using the primary winding as a component, an abnormality detection circuit connected to the primary winding, the 2 A common power supply unit comprising a first rectifier circuit for rectifying a voltage generated in the secondary winding, and a second rectifier circuit for rectifying the voltage generated in the secondary winding;
A control controller connected by the common power supply unit, a power supply line that outputs a DC voltage, an abnormal signal line that transmits an abnormal signal of the abnormality detection circuit, and a control signal line that excites the switching circuit;
By the control signal of the control controller,
While outputting the voltage rectified by the first rectifier circuit as an operating voltage for the electric dust collector,
A voltage rectified by the second rectifier circuit of the common power supply unit is output as an operating voltage for the negative ion generator. An apparatus including an electrostatic precipitator and a negative ion generator.

Images