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Discharge device and air cleaning device

A discharge device and discharge part technology, applied in corona discharge devices, electrical components, circuits, etc., can solve problems such as malfunction, reduced air purification efficiency, and inability to perform streamer discharge, so as to prevent smoke and suppress temperature rise Effect

Inactive Publication Date: 2007-02-07
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, due to these factors, if the discharge characteristics of the discharge part change, sparks may be generated from the discharge part toward the opposite part.
As a result, streamer discharge cannot be performed, and the generation amount of low-temperature plasma is reduced, resulting in a problem of reduced air purification efficiency.
In addition, this spark is noise to the user, or electromagnetic waves are generated along with the spark to cause malfunction of electronic devices near the discharge device, which has become a problem.

Method used

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  • Discharge device and air cleaning device
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  • Discharge device and air cleaning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

First of all, referring to Embodiment 1 image 3 and Figure 4 To illustrate.

[0077] image 3 , is an exploded perspective view of the air cleaning device (10) according to the first embodiment. This air cleaning device (10) is used for common households, or civil air cleaning devices such as small-scale shops. Also, this air cleaning device (10) is an air cleaning device that generates low-temperature plasma to purify the treated air by streamer discharge.

[0078] The air cleaning device (10) comprises a box-shaped housing body (21) with one end open and a housing (20) composed of a front panel (22) mounted on the open end. The two sides of one side of the front panel (22) of the housing (20) form a suction port (23). Also, on the shell body (21), the top plate forms an air outlet (24) near the back plate.

[0079] In the casing (20), an air passage (25) through which room air as air to be processed flows is formed between the air inlet (23) and the air outlet (24). ...

Embodiment approach 2

Next, refer to the air cleaning device (10) related to Embodiment 2 Figure 7 To illustrate. The air cleaning device (10) according to the second embodiment is different from the discharge device (40) of the first embodiment in configuration. Specifically, compared to the resistor (60) in the discharge device (40) of Embodiment 1, which is arranged on the circuit between the power supply (45) and the discharge part (61), in the discharge device (40) of Embodiment 2 , the resistor (60) is arranged between the power supply (45) and the opposite part (62).

[0111] In the discharge device (40) of Embodiment 2, the discharge electrode (41) includes the above-mentioned discharge portion (61) serving as a base point of streamer discharge, and a discharge-side supporting member (43) supporting the discharge portion (61). The discharge-side supporting member (43) includes a plate-shaped supporting member (43a) extending up and down, and a fixing member (43b) supported at a predetermi...

Embodiment approach 3

Next, refer to the air cleaning device (10) involved in the third embodiment Figure 9 To illustrate. The air cleaning device (10) of the third embodiment has a discharge device different from the discharge device (40) of the first embodiment.

[0125] Such as Figure 9 As shown, in the discharge device (40) of Embodiment 3, the resistor (60) is composed of an electric diffusion material synthesized by adding carbon fiber to ABS resin (acrylonitrile-butadiene-styrene resin). Still, the volume resistivity of this electrically diffusible material is in the range of 105 to 1012 Ωcm.

[0126] In this example, a resistor (60) made of an electrically diffusible material constitutes a support member (43a) of a discharge-side support member (43). And, on this supporting member (43a), the fixing member (43b) and the discharge needle (discharging part) (61) are supported as in the first embodiment. On the other hand, the opposing electrode (42) is constituted by a plate-shaped opposi...

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Abstract

In a discharge device for performing streamer discharge between a discharge electrode (41) including a plurality of discharge parts (61) and a counter electrode (42) including a plurality of counter parts (62) confronting the discharge parts (61), a resistor (60) is provided in a current carrying path between power source means (45) and the discharge parts (61).

Description

technical field [0001] The present invention relates to a discharge device for carrying out streamer discharge between a discharge electrode and an opposite electrode, and an air purification device including the discharge device, in particular to the spark suppression technology of the discharge device. Background technique [0002] Heretofore, air purifiers including a discharge device utilize plasma generated by discharge as a method of decomposing and removing odorous components or harmful components in the air. Among these air purifiers, streamer discharge type air purifiers are a better technology for decomposing harmful components or deodorizing because they use relatively low power to obtain high air purifying effects. [0003] For example, as shown in Patent Document 1 (Japanese Unexamined Patent Publication No. 2002-336689), the streamer discharge type air cleaning device, as a discharge device, includes: a discharge electrode with a plurality of needle-shaped disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T19/04A61L9/22B01D53/32B01J19/08B03C3/66B03C3/68H01T1/16
CPCH01T1/16B01D53/32B01D2259/818B03C3/68H01T19/04
Inventor 茂木完治香川谦吉田中利夫秋山竜司
Owner DAIKIN IND LTD
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