JP4640413B2 - Ion generating component, ion generating unit and ion generating apparatus - Google Patents

Description

  The present invention relates to an ion generating component, an ion generating unit, and an ion generating device, and more particularly to an ion generating component, an ion generating unit, and an ion generating device that include an insulating substrate, a linear electrode, and a ground electrode.

  As this kind of ion generating apparatus, what was described in patent document 1 is conventionally known. Specifically, as shown in the exploded perspective view of FIG. 7, the ion generator 101 includes a ground electrode 142 and a high voltage electrode 143 on an insulating substrate 141, and an insulating film 144 formed on the surface of the ground electrode 142. The linear electrode 145 is provided. The insulating substrate 141 is provided with a recess 141a by cutting out one side. The root portion of the linear electrode 145 is soldered to the high voltage electrode 143, and the tip side protrudes from the recess 141a.

By the way, in the conventional ion generator 101, there exists a possibility that a finger may enter from the recessed part 141a and may contact with the linear electrode 145. FIG. Since a large voltage is applied to the linear electrode 145 to generate strong electrolysis, it is not preferable that the finger touches the linear electrode 145.
JP 2005-63827 A

  Accordingly, an object of the present invention is to provide an ion generating component, an ion generating unit, and an ion generating device that are difficult for a finger to touch a linear electrode.

A first invention is an ion generating component including an insulating substrate, a linear electrode, and a ground electrode, and the insulating substrate has the linear electrode so that a tip end portion of the linear electrode protrudes. A main body portion to be attached, and on both sides of the front end portion of the linear electrode, two extending portions extending from the main body portion in a state of being separated from the linear electrode, and forming the ground electrode; The tips of the two extending portions are connected, and the ground electrode formed on the two extending portions is connected at the tips of the two extending portions. To do.

  According to the ion generating component as described above, since the tips of the two extending portions are connected, it is difficult to touch the linear electrode with a finger. As a result, the safety of the ion generating component is improved.

  Since the ground electrode is connected at the tip of the extending portion, the electric field generated between the ground electrode and the linear electrode tends to concentrate. As a result, the ion generating component can generate ions efficiently.

A second invention is an ion generating component comprising an insulating substrate, a linear electrode, and a ground electrode, and the insulating substrate has the linear electrode protruding so that a tip end portion of the linear electrode protrudes. A main body portion to be attached, and on both sides of the front end portion of the linear electrode, two extending portions extending from the main body portion in a state of being separated from the linear electrode, and forming the ground electrode; wherein the distance between the ends of the two extension portions is rather narrower than the distance between other portions of the two extension portions are formed at the distal end of the two extension portions that the distance of the ground electrode is characterized narrow Ikoto, than the distance of the ground electrodes formed on other portions of the two extension portions.

  According to the ion generating component as described above, since the distance between the two extending portions at the tip is narrow, it becomes difficult to touch the linear electrode with a finger. As a result, the safety of the ion generating component is improved.

  In 1st and 2nd invention, it is preferable that the wire diameter of the said linear electrode is 100 micrometers or less.

  By using a thin linear electrode having a wire diameter of 100 μm or less, electrons tend to concentrate on the tip of the linear electrode, and a strong electric field is likely to be generated.

  In the first and second inventions, an insulating film is preferably formed on the surface of the ground electrode.

  By covering the surface of the ground electrode with an insulating film, an ozone generation suppressing effect can be obtained with almost no change in the amount of negative ions generated.

  In the first and second aspects of the invention, the insulating film is preferably formed on the surface of the ground electrode, leaving a portion of the ground electrode facing the tip of the linear electrode.

  Since the tip of the ground electrode is not covered with the insulating film, a leakage current flows between the ground electrode and the linear electrode, and a small amount of ozone can be generated along with the generation of ions.

  In the first and second inventions, the ground electrode is preferably made of a resistor.

  For the ground electrode, for example, a resistor such as ruthenium oxide or a carbon resistor is used. Even in the case where the linear electrode comes into contact with the ground electrode, the resistor can reduce the heat generated by the short circuit. In particular, ruthenium oxide is an optimal material because it does not cause migration even when a high electric field is applied.

  The first and second inventions can be applied to the following ion generation unit. Specifically, the ion generation unit includes an ion generation component according to the first or second invention further provided with a high voltage electrode provided on the insulating substrate for attaching the linear electrode, and the high voltage electrode. A first terminal connected to the lead wire and having a locking portion with the lead wire; a second terminal connected to the ground electrode and having a locking portion with the lead wire; the ion generating component; the first terminal; And a case for accommodating the second terminal. The first and second inventions can also be applied to the ion generator shown below. Specifically, an ion generator includes the ion generating component according to the first or second invention and a high-voltage power source that generates a negative voltage.

The ion generation unit can also be applied to the ion generation apparatus shown below. Specifically, the ion generator includes a high voltage power source that has lead wires that are respectively engaged with the first terminal and the second terminal and that generates a negative voltage, and the ion generation according to claim 8. And a unit.

  According to the ion generating component, the ion generating unit, and the ion generating device according to the present invention, the ends of the two extending portions are connected or the distance between the ends of the two extending portions is narrow. It becomes difficult to touch the electrode with a finger. As a result, the safety of the ion generating component, the ion generating unit, and the ion generating device is improved.

  Hereinafter, embodiments of an ion generating component, an ion generating unit, and an ion generating apparatus according to the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is an exploded perspective view of the ion generator 1, and FIG. 2 is an external perspective view thereof. As shown in FIG. 1, the ion generator 1 includes a lower resin case 2, an upper resin case 3, an ion generating component 4, a first terminal 5a, a second terminal 5b, and lead wires 7 and 8. And a high-voltage power supply (not shown). Here, the lower resin case 2, the upper resin case 3, the ion generating component 4, the first terminal 5a, and the second terminal 5b constitute an ion generating unit.

  The lower resin case 2 has an air intake port 21 formed in the side wall 2a at one end portion, and an air discharge port 22 formed in the side wall 2b at the other end portion. Further, a locking arm portion 23 is formed on the side wall 2c on the near side.

  The upper resin case 3 has an air intake port (not shown) formed on the side wall 3a at one end, and an air discharge port 32 formed on the side wall 3b at the other end. Two claw portions 31 are formed on the front side wall 3c. By fitting these claw portions 31 into the locking arm portions 23 of the lower resin case 2, the upper resin case 3 and the lower resin case 2 are firmly joined to form a resin case with air permeability. An ion generating component 4 and terminals 5a and 5b are disposed in a housing portion formed in the upper resin case 3 and the lower resin case 2 inside.

As shown in FIG. 3, the ion generating component 4 includes an insulating substrate 41, a ground electrode 42, a high voltage electrode 43, an insulating film 44, and a linear electrode 45. The insulating substrate 41 is a plate-like member, and includes a main body portion 41a and a pair of extending portions 41b and 41c. A high voltage electrode 43 is provided on the main body 41a. The linear electrode 45 is attached to the main body portion 41 a by soldering the root portion to the high-voltage electrode 43. The distal end portion of the linear electrode 45 protrudes from the main body portion 41a along the main surface direction of the main body portion 41a. The linear electrode 45 is a very fine wire having a wire diameter of 100 μm or less, a longitudinal elastic modulus of 2500 N / mm ² or more, and a piano wire, a tungsten wire, a stainless steel wire, a titanium wire, or the like is used.

  The extending portions 41 b and 41 c extend from the main body portion 41 a in a state of being separated from the linear electrode 45 on both sides of the distal end portion of the linear electrode 45. And the front-end | tip of this extension part 41b, 41c is mutually connected. Specifically, the extending portions 41 b and 41 c are provided so as to sandwich the linear electrode 45 and extend substantially parallel to the linear electrode 45 when viewed from above. And on the extension line of the linear electrode 45, the front-end | tip of the extension part 41b and the front-end | tip of the extension part 41c are connected. That is, the insulating substrate 41 is formed with an opening that penetrates the main surface, and the tip of the linear electrode 45 projects into the opening.

  The ground electrode 42 has a pair of leg portions 42a and 42b substantially parallel to the linear electrode 45 on the main surfaces of the extending portions 41b and 41c. These leg parts 42a and 42b are mutually connected in the front-end | tip of the extension parts 41b and 41c. An insulating film 44 is formed on the surface of the ground electrode 42, leaving a contact portion 42c with which the terminal 5b contacts. As a material of the insulating film 44, silicon resin, glass glaze, or the like is used. The ground electrode 42 has a resistance value of about 50 MΩ. As the material of the ground electrode 42, ruthenium oxide paste, carbon paste, or the like is used. In particular, ruthenium oxide is an optimal material because it does not cause migration even when a high electric field is applied. The ground electrode 42 is formed, for example, by applying and baking these pastes on the insulating substrate 41.

  The metal terminals 5a and 5b are constituted by a locking part 51 and a foot part 52, respectively. The locking part 51 is fitted into holding parts 33 and 34 formed on the upper surface 3 d of the upper resin case 3. The foot portion 52 of the terminal 5 a is in contact connection with the contact portion 43 a of the high-voltage electrode 43, and the foot portion 52 of the terminal 5 b is in contact connection with the contact portion 42 c of the ground electrode 42.

  The end portion 7a of the high-voltage lead wire 7 is fitted into an opening (not shown) formed on the front surface of the holding portion 33 of the upper resin case 3, and the core wire 71 is engaged with the locking portion 51 of the terminal 5a. Electrically connected. Similarly, the end portion 8a of the ground lead wire 8 is fitted into an opening (not shown) formed on the front surface of the holding portion 34, and the core wire 81 engages with the locking portion 51 of the terminal 5b to be electrically connected. Connected to.

  The high-voltage lead 7 is connected to the negative output terminal of the high-voltage power supply, and the ground lead 8 is connected to the ground output terminal of the high-voltage power supply. The high-voltage power supply supplies a negative DC voltage, but may supply an AC voltage on which a negative DC bias is superimposed. And this ion generator 1 is incorporated in an air cleaner or an air conditioner. That is, when the high-voltage power supply is set in the power supply circuit section of the air purifier and the ion generator is set in the blower path, the air purifier or the like blows wind containing negative ions.

  The ion generator 1 having the above configuration can generate negative ions at a voltage of −1.3 KV to −2.5 KV. That is, when a negative voltage is applied to the linear electrode 45, a strong electric field is formed between the linear electrode 45 and the ground electrode 42. Moreover, the front-end | tip part of the linear electrode 45 breaks down and becomes a corona discharge state. At this time, in the vicinity of the tip of the linear electrode 45, molecules in the air are turned into plasma, the molecules are divided into positive ions and negative ions, and the positive ions in the air are absorbed by the linear electrode 45, and negative ions Will remain.

  According to the ion generator 1 configured as described above, since the extending portions 41 b and 41 c are connected to each other, it becomes difficult for the finger to come into contact with the linear electrode 45 through the discharge ports 22 and 32. As a result, the safety of the ion generator 1 is improved. Furthermore, since the ground electrode 42 is formed so as to surround the periphery of the linear electrode 45, the electric field generated between the linear electrode 45 and the ground electrode 42 is likely to concentrate. As a result, negative ions can be generated more efficiently.

Further, by using the linear electrode 45 having a longitudinal elastic modulus of 2500 N / mm ² or more, the linear electrode 45 becomes difficult to bend and is easily restored even if an external force acts on the linear electrode 45. As a result, the linear electrode 45 is not easily displaced from the original mounting position.

(Second Embodiment)
FIG. 4 is a plan view of an ion generating component 4A according to the second embodiment. In the ion generating component 4, the extending portions 41b and 41c are connected to each other, whereas in the ion generating component 4A, the extending portions 61b and 61c are not connected. Specifically, the distance between the tip of the extension 61b and the tip of the extension 61c is greater than the distance between the other part of the extension 61b and the other part of the extension 61c. Is also narrower. And it is preferable that the distance L between the front-end | tip parts of the extension parts 61b and 61c is 3 mm or less. Further, the distance between the leg portions 42a and 42b of the ground electrode 42 is preferably narrow at the tip.

  As described above, the finger can be prevented from coming into contact with the linear electrode 45 also by narrowing the distance between the distal end portion of the extending portion 61b and the distal end portion of the extending portion 61c. Furthermore, since the distance between the leg portions 42a and 42b of the ground electrode 42 is narrow at the tip, the distance between the ground electrode 42 and the linear electrode 45 is reduced, and the electric field strength is increased. As a result, negative ions can be generated more efficiently.

  In the present embodiment, the distal ends of the extending portions 61b and 61c refer to the vicinity of the distal ends of the extending portions 61b and 61c, but more specifically, are positioned before the distal ends of the linear electrodes 45. Refers to the part.

(Third embodiment)
5 and 6 are plan views of the ion generating component 4B and the ion generating component 4C according to the third embodiment, respectively. In the first and second embodiments, the surface of the ground electrode 42 of the ion generating component 4, 4A is covered with the insulating film 44 leaving the contact portion 42c, whereas in the third embodiment, The surface of the ground electrode 42 of the ion generating components 4B and 4C is covered with the insulating film 44, leaving the tip portion 42d of the ground electrode 42 and the contact portion 42c facing the tip portion of the linear electrode 45. That is, the tip portion 42 d is exposed from the insulating film 44.

  As described above, since the tip portion 42d of the ground electrode 42 is not covered with the insulating film 44, a leakage current flows between the ground electrode 42 and the linear electrode 45, and a small amount of ozone is generated along with the generation of ions. To come. Note that the leakage current can be controlled and the amount of ozone generated can be controlled by changing the area and position of the tip portion 42d where the ground electrode 42 is exposed from the insulating film 44.

  In addition, this invention is not limited to the said embodiment, It can change variously within the range of the summary. For example, the number of linear electrodes of the ion generating component is not limited to one, and two or more linear electrodes may be provided. However, when two or more linear electrodes are provided, if the linear electrodes are too close to each other, the electric field distribution is disturbed and the discharge efficiency is lowered.

It is a disassembled perspective view of the ion generator which concerns on 1st Embodiment. It is an external appearance perspective view of the said ion generator. It is a top view which shows the ion generating component contained in the ion generator shown in FIG. It is a top view which shows the ion generating component which concerns on 2nd Embodiment. It is a top view which shows the ion generating component which concerns on 3rd Embodiment. It is a top view which shows the ion generating component which concerns on 3rd Embodiment. It is a disassembled perspective view of the conventional ion generator.

1 Ion generator
2 Lower resin case
3 Upper resin case
4,4A ion generating parts
5a 1st terminal
5b Second terminal
7,8 Lead wire
41 Insulating substrate
41a body
41b, 41c, 61b, 61c Extension part
42 Ground electrode
42a, 42b Leg
42c Contact part
43 High voltage electrode
44 Insulating film
45 Linear electrode
51 Locking part

Claims (10)

An ion generating component comprising an insulating substrate, a linear electrode, and a ground electrode,
The insulating substrate is
A main body to which the linear electrode is attached so that the tip of the linear electrode protrudes;
Two extending portions that extend from the main body portion in a state of being separated from the linear electrode on both sides of the tip portion of the linear electrode, and in which the ground electrode is formed,
Including
The ends of the two extending portions are connected ,
The ground electrodes formed on the two extending portions are connected at the tips of the two extending portions ;
Ion generating parts characterized by An ion generating component comprising an insulating substrate, a linear electrode, and a ground electrode,
The insulating substrate is
A main body to which the linear electrode is attached so that the tip of the linear electrode protrudes;
Two extending portions that extend from the main body portion in a state of being separated from the linear electrode on both sides of the tip portion of the linear electrode, and in which the ground electrode is formed,
Including
The distance between the ends of the two extension portions is rather narrower than the distance between other portions of the two extension portions,
The distance between the two extending portions said ground electrode formed on the tip portion of the narrower than the distance of the ground electrodes formed on other portions of the two extension portions Ikoto,
Ion generating parts characterized by The distance between the tip portions of the two extending portions is 3 mm or less,
The ion generating component according to claim 2 . The wire diameter of the linear electrode is 100 μm or less,
The ion generating component according to claim 1, wherein: An insulating film is formed on the surface of the ground electrode;
The ion generating component according to any one of claims 1 to 4 . The insulating film is formed on the surface of the ground electrode, leaving a portion of the ground electrode facing the tip of the linear electrode;
The ion generating component according to claim 5 . The ground electrode is made of a resistor;
The ion generating component according to any one of claims 1 to 6 . The ion generating component according to any one of claims 1 to 7 , further comprising a high voltage electrode provided on the insulating substrate for attaching the linear electrode,
A first terminal connected to the high-voltage electrode and having a locking portion with a lead wire;
A second terminal connected to the ground electrode and having a locking portion with a lead wire;
A case for accommodating the ion generating component, the first terminal, and the second terminal;
An ion generation unit comprising: The ion generating component according to any one of claims 1 to 7 ,
A high-voltage power supply that generates negative voltage;
An ion generator comprising: A high-voltage power source having a lead wire respectively engaged with the first terminal and the second terminal and generating a negative voltage;
An ion generation unit according to claim 8 ;
An ion generator comprising:

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