JPH10148343A - Air conditioner provided with deodorizing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the obtaining of a necessary heat generation rate by a method wherein a deodorizing unit, provided with an air flow direction changing guide, is provided in the ventilating circuit of an air conditioner. SOLUTION: A deodorizing unit 10 is prepared by a method wherein a ceramic heater element 1 is fixed to a casing consisting of an insulating material such as resin and the like and, further, the casing 3 is fixed to a mounting plate 5, consisting of a metallic material or the like provided with an air flow direction changing guide A4 at the upstream side of the air flow. The deodorizing unit 10, provided with the air flow direction changing guide A4 at the lower side of upstream side of the airflow of the mounting plate 5, is provided in the ventilating circuit of the air conditioner whereby air flow can be converged into the ventilating ports of the ceramic heater element 1 and the characteristics of the ceramic heater, having positive temperature characteristic provided with self temperature control characteristic, through which a heat generation rate is increased automatically when the air volume is changed and the amount of dissipating heat is increased, can be utilized sufficiently thereby permitting the obtaining of a necessary heat generation rate efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic heater having a deodorizing function for use in an air conditioner.

[0002]

2. Description of the Related Art As a deodorizer integrated with a conventional heater, as described in Japanese Utility Model Application Laid-Open No. 3-103587, for example, a deodorizing device is provided on a surface of a ceramic element having ventilation holes parallel or perpendicular to electrodes. A heater carrying a noble metal catalyst having a deodorizing function or a heater integrated with a heater using a heat-resistant glass tube and an adsorptive oxidation catalyst layer as described in Japanese Utility Model Laid-Open Publication No. 3-83621 are used for ventilation of an air conditioner. Some are installed in a part of a circuit or installed in parallel with a heat exchanger.

[0003]

However, in the above-described conventional configuration, the ceramic heater having the positive temperature characteristic has a self-temperature control characteristic in which the amount of heat generated automatically increases when the amount of heat radiated due to a change in air flow increases. However, simply installing it in a part of the ventilation circuit will only provide resistance when blowing air, which will degrade the performance of the air conditioner, and will not make full use of the characteristics of ceramic heaters, No calorific value was obtained.

[0004] Further, if a ceramic heater such as a honeycomb shape is not installed in the wind circuit after grasping the flow of the wind in the blower circuit, not only does the wind hardly pass through the ventilation holes of the honeycomb, but also the efficiency becomes poor. Turbulence is generated in the ventilation circuit, which also generates sound.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a ceramic heater capable of obtaining a required heat value without substantially increasing ventilation resistance of an air conditioner.

[0006]

According to the present invention, there is provided a deodorizing unit having a wind direction changing guide provided below a windward side of a mounting plate for holding a casing.
By providing in the ventilation circuit of an air conditioner having a heat exchanger and a blowing means, the air flowing in the ventilation circuit is focused by the guide for changing the air direction, so that the amount of air passing through the deodorizing unit is increased, and the ceramic heater is provided. A large amount of heat is obtained.

[0007]

According to the first aspect of the present invention, a deodorizing catalyst layer is formed on a surface of a positive temperature characteristic thermistor having a plurality of ventilation paths having a current supply means for heating. A casing provided with a power supply terminal for taking out an energizing means for holding the positive temperature characteristic thermistor to the outside, and a wind direction changing guide for converging wind provided at a lower windward side of a ventilation circuit holding the casing. A deodorizing unit composed of a mounting plate is provided in a ventilation circuit of an air conditioner including a heat exchanger and a blowing means.

According to this configuration, the wind can be focused in the ventilation holes of the honeycomb of the deodorizing unit, and when the amount of heat radiated due to a change in the amount of air increases, the amount of heat generated automatically increases. Since the characteristics of the ceramic heater having the positive temperature characteristic having the control characteristic can be fully utilized, a necessary heat generation amount can be efficiently obtained.

According to a second aspect of the present invention, a wind direction changing guide is provided on the leeward side of the mounting plate of the deodorizing unit, so that the wind flowing in the ventilation circuit flows from the upper part of the deodorizing unit to the leeward side of the deodorizing unit. As a result, it is possible to suppress the wind that hinders the wind that smoothly passes through the ventilation holes of the honeycomb, and efficiently heat the ceramic heater.

According to a third aspect of the present invention, a slit is provided in a wind direction changing guide provided on a mounting plate of the deodorizing unit,
The resistance when introducing wind into the ventilation holes of the honeycomb is suppressed without substantially reducing the amount of heat generated, so that it can be efficiently used as a heat source, and turbulence in the blower circuit can be suppressed, and noise can be suppressed. You can do it.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1B is an external perspective view of a ceramic heater element 1 fixed by a casing 3 having a power supply terminal 2. FIG. 1A is an external perspective view of a deodorizing unit 10 in which a ceramic heater element 1 is fixed by a casing 3 having a power supply terminal 2 and a mounting plate 5 provided with a wind direction changing guide A4 is further mounted.

In the deodorizing unit 10, the ceramic heater element 1 is fixed by a casing 3 made of an insulating material such as a resin material, and a guide A4 for changing the wind direction is attached to a lower part on the windward side and made of a metal material or a resin material. It is fixed to the plate 5.

By providing this deodorizing unit 10 having a wind direction changing guide A4 below the windward side of the mounting plate 5 in the ventilation circuit of the air conditioner, the ceramic heater element 1 is provided.
Therefore, the air can be focused in the ventilation holes, so that the ceramic heater element having the self-temperature control characteristic can efficiently generate heat.

(Embodiment 2) FIG. 2 shows a wind direction changing guide B6 provided on the leeward side of a mounting plate 5 of a deodorizing unit 10 provided in a ventilation circuit of an air conditioner.

According to this embodiment, the air flows from the upper part of the deodorizing unit 10 to the leeward side of the ceramic heater element 1 and sneak into the sealing hole of the ceramic heater element 1 so as to obstruct the wind. Since the generated wind is suppressed from hitting the ceramic heater element 1 by the wind direction changing guide B6, the ceramic heater element 1 can be efficiently heated.

(Embodiment 3) FIG. 3 shows a configuration in which a slit 7 is provided in a wind direction changing guide A4 provided on a mounting plate 5 of a deodorizing unit 10 provided in a ventilation circuit of an air conditioner.

According to this embodiment, the resistance of the wind in the ventilation circuit, which is converged by the wind direction changing guide A4, when passing through the ventilation holes of the ceramic heater element 1 can be suppressed, thereby suppressing sound. It is also possible to efficiently generate heat without substantially reducing the amount of heat generated by the ceramic heater element 1.

The same effect can be obtained even if the slit 7 is a hole or a skewed slit as shown in FIGS.

The wind direction changing guides and slits can be mounted on the windward or leeward side of the deodorizing unit, or on both the windward and leeward sides, depending on the required heat generation amount.

[0021]

As is apparent from the above embodiment, the first aspect of the present invention is to install a deodorizing unit provided with a guide A for changing a wind direction in a ventilation circuit of an air conditioner, so that the inside of the ventilation circuit is improved. Can be efficiently focused in the ventilation holes of the ceramic heater element. In other words, according to this configuration, when the amount of heat dissipated due to a change in the air volume increases, the amount of heat generated automatically increases, and the ceramic heater having the self-temperature control characteristic can more efficiently generate heat. To play.

Further, by installing a deodorizing unit provided with a guide B for changing the wind direction in the ventilation circuit of the air conditioner, the leeward side of the ceramic heater element from the upper part of the deodorizing unit. The wind coming around can be suppressed. In other words, according to this configuration, the wind coming from the upper part of the deodorizing unit to the leeward side of the ceramic heater element, which is an obstacle to the wind trying to smoothly pass through the ventilation holes of the ceramic heater element, is suppressed, and the self-temperature control characteristic is reduced. This has the effect of making it possible to more efficiently generate heat from the ceramic heater having the above.

Further, by providing a slit in the wind direction changing guide A as in the third aspect of the present invention, the resistance when the wind passes through the ventilation holes of the ceramic heater element can be suppressed, and the sound can be reduced. Will be possible.

Further, by providing a slit in the wind direction changing guide B, it is possible to suppress the wind resistance when suppressing the wind flowing from the upper part of the deodorizing unit to the leeward side of the ceramic heater element, thereby reducing the noise. Reduction is also possible.

[Brief description of the drawings]

1 (a) and 1 (b) are perspective views of a deodorizing unit showing an embodiment of the present invention.

FIG. 2 is a perspective view of a completed deodorizing unit showing still another embodiment of the present invention.

FIG. 3 is a perspective view of a completed deodorizing unit showing still another embodiment of the present invention.

FIG. 4 is a perspective view of a completed deodorizing unit showing still another embodiment of the present invention.

FIG. 5 is a perspective view of a completed deodorizing unit showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceramic heater element 2 Power supply terminal 3 Casing 4 Guide A 5 Mounting plate 6 Guide B 7 Slit 10 Deodorizing unit

Claims (3)

[Claims] 1. A power supply terminal for forming a plurality of ventilation paths having heating means for heating, forming a deodorization catalyst layer on the surface of the thermistor, and taking out the current means holding the positive temperature characteristic thermistor to the outside. A deodorizing unit composed of a casing provided with the above, and a mounting plate provided with a wind direction changing guide below the windward side of a mounting plate holding the casing, an air having a heat exchanger and a blowing means. An air conditioner with a deodorizing function, which is provided in a ventilation circuit of the conditioner. 2. The air conditioner with a deodorization function according to claim 1, wherein a wind direction changing guide is provided on an upper part on the leeward side of the mounting plate. 3. The air conditioner with a deodorizing function according to claim 1, wherein a slit is provided in a wind direction changing guide provided on the mounting plate.