JP3070804B2 - Heat exchange mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange mechanism, and more particularly to a heat exchange mechanism having a dust collecting function for an air conditioner.

[0002]

2. Description of the Related Art In a conventional heat exchange mechanism for an air conditioner, an air filter is provided for dust removal. FIG. 3 shows a side view of such a conventional heat exchange mechanism. In the figure, an inlet air 50 before air conditioning is sucked in by a fan 54 rotated by a motor 55, and the inlet air 50 is firstly dusted when passing through an air filter 52. The air from which dust has been removed comes in contact with and passes through a heat exchange tube 53 that receives supply of a cooling / heating medium from a cooling / heating source 56, and receives and receives heat at this time. The air thus conditioned is discharged from the fan 54 to the outside of the system as outlet air 51.

[0003]

In the above description, the air filter 52 for dust removal has a large pressure loss, and therefore the energy efficiency is reduced. Further, in order to obtain a sufficient dust removing effect, the contact area of the air filter must be increased, and as a result, there has been a problem that the dimensions of the air conditioner are not reduced. Furthermore, replacement of the air filter and troublesome maintenance are required, and improvement in both work and cost has been desired.

The present invention has been made to solve such problems and problems, and has as its object to provide a small-sized, low-cost dust collector having a small pressure loss, high energy efficiency, and simplified maintenance. An object of the present invention is to provide a heat exchange mechanism having a function.

[0005]

In order to achieve the above object,
The heat exchange mechanism according to the present invention is provided with a discharge rod without an air filter on the inlet air side of the heat exchange tube, energizing the discharge rod with a positive discharge voltage, A fan of a type that sends air in a radial direction is provided closer to the heat exchange tube on the side of the outlet air, and an ultrasonic vibrator is fixed to the heat exchange tube.

[0006]

[Function] A discharge rod energized by a positive discharge voltage gives a positive charge to dust in the incoming air and charges it, while negatively charges a heat exchange tube and fins attached thereto. . Positively charged dust is negatively charged, loses charge by contacting the heat exchange tube and its fins, and adheres to the heat exchange tube and its fins to be collected. The dust-free outlet air that has passed through the heat exchange tube is discharged by the fan.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat exchange mechanism having a dust collecting function according to the present invention will be described below with reference to the drawings of the embodiments. FIG. 1 is a front structural view of an embodiment of a heat exchange mechanism according to the present invention, and FIG. 2 is a side view thereof.

In FIG. 1 and FIG. 2, a heat exchange mechanism 1 having a dust collecting function includes a cooling / heating heat source 6 such as a heat pump for circulating a heat medium, and a fin 3 for receiving the heat medium.
A heat exchange tube 2 attached thereto, which is provided upstream of the heat exchange tube 2, that is, protrudes toward the inlet air 20, and which is rotated by a motor 12 and a discharge rod 4 energized by a discharge pulse generator 5;
It comprises a fan 9 that takes in the incoming air 20 and discharges the outgoing air 21.

Further, an ultrasonic vibrator 7 may be fixed to the heat exchange tube 2. A plurality of ultrasonic transducers 7 may be provided. Further, a drain port 1 is provided below the heat exchange pipe 2.
It is also possible to provide a pan 8 with 1.

Next, the operation of the heat exchange mechanism 1 having the dust collecting function will be described. When the motor 12 is operated, the fan 9 rotates and sucks the incoming air 20. Along with this, the contained dust 19 is also drawn in the direction of the heat exchange tube 2.

On the other hand, the discharge rod 4 protruding forward from the heat exchange tube 2 is energized by a discharge pulse generator 5 with a pulse voltage for discharging with a positive voltage, and the discharge charges the dust 19 positively. Let it. Here, since the heat exchange tubes 2 and the fins 3 are charged to a negative potential, the positively charged dust 19 is adsorbed on the surfaces of the heat exchange tubes 2 and the fins 3,
Collected here.

The incoming air 20 from which the dust 19 contained has been removed comes into contact with the heat exchange tube 2 to transfer heat, and the temperature-conditioned air is discharged outside the system as outlet air 21. Released.

As described above, in the present invention, since dust is collected based on the electric suction action of the charged body, the pressure loss is very small as compared with the air filter. in addition,
Since the electric dust can be collected with high efficiency, a sufficient throughput can be ensured even with a small passage area. Therefore, the size of the heat exchange mechanism 1 can be designed small.

In the case where the ultrasonic transducer 7 and the receiving tray 8 are provided, when the heat exchanger tube 2 and the fins 3 are vibrated by the vibration of the ultrasonic transducer 7, dust collected on the surfaces thereof is directed downward. After dropping and collecting in the tray 8, the drain port 11
Is discharged from

That is, by appropriately operating the ultrasonic vibrator 7, it is possible to automatically discharge the collected dust, so that it is not necessary to replace the air filter as in the conventional case, and the maintenance work is significantly simplified. Can be realized.

[0016]

According to the heat exchange mechanism of the present invention, the following effects can be obtained. 1) Heat exchange and dust collection become possible at once. 2) Since there is no air filter, pressure loss is small and high energy efficiency is achieved. 3) Maintenance work is simplified because the dust attached to the heat exchange tube is dropped by the ultrasonic vibrator. 4) The size of the equipment can be reduced because a fan that sends air in a radial direction is used.

[Brief description of the drawings]

FIG. 1 is a front structural view of an embodiment of a heat exchange mechanism having a dust collecting function according to the present invention.

FIG. 2 is a side view of the heat exchange mechanism of FIG.

FIG. 3 is a side view of a conventional heat exchange mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchange mechanism provided with dust collection function 2 Heat exchange tube 3 Fin 4 Discharge rod 5 DC pulse generator 6 Cold / hot heat source 7 Ultrasonic vibrator 8 Receiving tray 9 Fan 10 Dust collected and dropped 11 Drain 12 Motor 19 Dust 20 Inlet air 21 Outlet air

Claims (1)

(57) [Claims] An air filter is provided on the side of the inlet air rather than the heat exchange tube.
Provided discharge rods without have a motor, biases the dissipating Denbo plus discharge voltage, the heat exchange tubes on the side of the outlet side air than heat exchange tubes
Close to the heat exchange mechanism, characterized in that only set the fan <br/> down type for feeding air to the radial direction, and has fixedly provided an ultrasonic vibrator to the heat exchange tubes.