JP2005240556A - Ion generating fan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ion generating fan with excellent assemblability suppressing the projected amount of a blade to the rear side by improving the arrangement structure of an ion generating part. <P>SOLUTION: This ion generating fan comprises a motor 16 disposed at the rear of the blade 3 and rotating the blade 3, a first storage part K1 storing a motor 17 for oscillation, a second storage part K2 storing the ion generating part 15 formed above the first storage part K1 and discharging ions forward, opening parts 8a and 9a formed on the front and rear sides of the second storage part K2, and net-like members 11 and 12 fitted to the opening parts 8a and 9a formed on the front and rear sides thereof. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an ion generating fan including an ion generating unit that generates ions.

  Various home appliances equipped with an ion generator for generating ions are known, and many products installed in electric fans have been commercialized. When mounted on an electric fan, there are various places where the ion generating unit is mounted, and examples of mounting on a pedestal or mounting on a support column supporting a blade are known. Moreover, the structural example mounted in the back side of a blade | wing is well-known as what was disclosed by the following patent document 1. FIG. The ion generating fan of the present application is intended for an ion generating unit disposed on the rear side of a blade.

  In Patent Document 1 below, a frame is provided around the blade motor, a plurality of support members are provided around the frame, an ion generator is fixed to the back of the frame, and a cord extending from the ions is placed in the protective cover of the blade. I ’m here. However, not only the blade rotation motor but also the swing motor must be arranged on the rear side of the blade, and if an ion generator is arranged behind the blade rotation motor, the amount of protrusion on the rear side of the blade increases and the fan This is an undesirable appearance. Furthermore, since the ion generator is disposed behind the blade rotation motor, the extension cord must face the protective cover of the blade in order to discharge ions forward efficiently. Therefore, design considerations are required so that the extension cord and the blade rotation do not interfere with each other. In addition, it is necessary to keep the extension cord in a stable state, which causes a troublesome assembly work.

As ions generated from the ion generator, those generating not only negative ions but also negative ions and positive ions are known.
Utility model registration No. 3087187

  This invention is made | formed in view of the said situation, The subject is devising arrangement | positioning structure of an ion generating part, suppressing the protrusion amount of the back side of a blade | wing, and providing an ion generating fan with favorable assembly property. is there.

In order to solve the above problems, an ion generating fan according to the present invention is:
A first accommodating portion that is disposed on the rear side of the blade and accommodates a motor that rotates the blade and a motor for swinging;
A second accommodating portion for accommodating an ion generating portion provided above the first accommodating portion for discharging ions to the front side;
An opening formed on each of the front side and the rear side of the second housing part;
And a net-like member attached to the opening provided at the front and rear.

  The operation and effect of the ion generating fan having such a configuration will be described. A blade rotation motor and a swing motor are disposed on the rear side of the blade, and a first storage portion for storing these is provided. A second accommodating portion that accommodates the ion generating portion is provided above the first accommodating portion. Openings are formed in the second housing part on the front side and the rear side, respectively. Therefore, the second housing portion can function as a wind tunnel. Since the ion generator is not disposed behind the blade rotation motor but is disposed on the upper side of the first housing portion, the amount of protrusion on the rear side of the blade can be suppressed. In addition, since the opening is formed on the front side of the ion generating portion, it is not necessary to provide an extension cord and face this inside the protective cover of the blade. That is, it is possible to eliminate the extension cord, which is superior to the prior art in terms of assembly. Further, a net-like member is attached to the opening. By providing the net-like member, it is possible to prevent large dust or the like from entering the housing portion. Moreover, it can also prevent that a finger | toe is inserted in an accommodating part by providing a net-shaped member. As described above, it is possible to provide an ion generating fan having a good assembly property by devising the arrangement configuration of the ion generating portion and suppressing the protruding amount on the rear side of the blade.

  In this invention, it is preferable that the partition member for partitioning a 1st accommodating part and a 2nd accommodating part is provided. The second accommodating portion is provided with openings at the front and rear in order to function as a wind tunnel. Therefore, small dust or the like can enter through this opening. If such dust adheres to the blade rotation motor, the swinging motor, the circuit components in the peripheral portion, etc., it may cause malfunction. Therefore, a partition member for partitioning the first housing portion and the second housing portion is provided. Thereby, it can prevent that dust etc. approach into the 1st storage part in which a motor etc. are stored.

  The partition member according to the present invention includes a first partition member positioned on the front side and a second partition member positioned on the rear side, and has a height at which the first partition member and the second partition member are disposed. It is preferable that they are different.

  The first partition member and the second partition member are configured separately, and the mounting heights thereof are different to ensure a space for passing the wiring of the ion generation unit.

  As a cover member for forming the first storage portion and the second storage portion according to the present invention, a first cover member located on the front side and a second cover member attached to the rear side of the first cover member It is preferable that the first partition member is attached to the first cover member and the second partition member is attached to the second cover member.

  By attaching the first and second partition members to the first and second cover members in this way, assemblability can be improved, and the wiring of the ion generating part can be easily accommodated.

  In the present invention, it is preferable to provide a substrate support member for attaching a circuit board on which a circuit for generating ions is mounted above the swing motor.

  Although it is necessary to arrange the circuit for generating ions in the accommodating portion, it is preferable to attach the circuit above the swing motor via a substrate support member. The amount of protrusion on the rear side of the blade can be suppressed by arranging it above the swing motor.

  In this case, it is preferable that the circuit board is disposed on the lower side of the partition member. That is, the circuit board is disposed in the first housing part. Thereby, the function as a wind tunnel of a 2nd accommodating part can be exhibited efficiently.

  In the present invention, it is preferable to provide an electrode support member for mounting the discharge electrode constituting the ion generating portion, and set the distance between the discharge electrode and the front opening to be 5 mm or more. It was confirmed experimentally that ions can be generated efficiently by setting such values.

  In the present invention, a front protective cover that covers the blades, a rear protective cover, and a filter that covers the rear protective cover are provided, and the position of the opening on the front side of the second housing portion is covered by the filter. It is preferable to configure so that it is not covered.

  By providing such a filter, dust can be adsorbed and dust can be prevented from being released to the front side by the blades. In addition, since no filter is provided at the position of the opening of the second housing part, ions can be efficiently released to the front side.

  A preferred embodiment of an ion generating fan according to the present invention will be described with reference to the drawings. FIG. 1 is an external view of a fan as viewed from the front, and FIG. 2 is an external view of the fan as viewed from the back.

  The electric fan includes a base 1 formed in a circular shape in plan view, a support 2 installed vertically from the rear side of the center of the base 1, a blade 3 composed of five blade members, a blade 3 and a front protective cover 4 that covers the front side of 3. A concave portion is formed on the front side of the base 1 so that the remote controller 10 can be accommodated. A protective cover 5 is also provided on the rear side of the blade 3. Note that the number of blade members is not limited to five, but may be another number, for example, three.

  On the upper side of the support 2, a moving support 6 that can move in the vertical direction with respect to the support 2 is provided. By operating the button 2 a provided on the support 2, the movable support 6 can be moved up and down to set the height of the blade 3. A connection cover member 7 is provided at the upper end portion of the movable support column 6, and this connection cover member 7 is pivotally supported by the movable support column 6 so as to be rotatable in the vertical direction. A first cover member 8 and a second cover member 9 are disposed above the connection cover member 7. Both the first and second cover members 8 and 9 are pivotally supported with respect to the connecting cover member 7 so as to be rotatable in the left-right direction. This enables swinging. The rear cover 5 is attached to the first cover member 8 immediately in front. The first and second cover members 8 and 9 are formed in a substantially sacrificial longitudinal cross-sectional shape, and a first housing portion K1 is formed below the space surrounded by the first and second cover members 8 and 9. The second housing portion K2 is formed above the first housing portion K1. An opening 9a is formed on the rear side of the second cover member 9, and a net-like member 11 is attached to the opening 9a.

  FIG. 3 is a view showing a state in which the second cover member 9 is removed, and FIG. 4 is a schematic view (longitudinal sectional view) showing an internal configuration of the first storage portion K1 and the second storage portion K2. As shown in FIG. 4, the internal space is composed of a lower first housing portion K1 and an upper second housing portion K2, and the first partition member 13 and the second partition member are used to partition these housing portions. 14 is provided. The second partition member 14 is set at a slightly higher position than the first partition member 13. The first accommodating portion K1 is provided with an opening 8a and an opening 9a on the front side and the rear side, respectively, and an air flow passage is formed to function as a wind tunnel. Net-like members 11 and 12 are attached to the openings 8a and 9a, respectively, and large dust and fingers can be prevented from entering the second storage portion K2. The net-like members 11 and 12 are formed to cross a metal wire member. However, the present invention is not limited to this, and an appropriate net shape can be adopted. Instead of providing the net-like member, the first and second cover members 8 and 9 may be integrally molded with resin.

  The distal end 14 a of the second partition member 14 slightly enters the inside of the first cover member 8. The front end 14 a overlaps the upper part of the rear end 13 a of the first partition member 13. By configuring the partition members 13 and 14 in this manner, dust or the like that has entered the second housing portion K2 is prevented from falling into the first housing portion K1. It is possible to prevent dust and the like from entering the motors 16 and 17 to cause abnormal noise and other malfunctions. Moreover, the space which lets wiring pass is formed by making the attachment height of the 1st partition member 13 and the 2nd partition member 14 differ. Note that which of the first partition member 13 and the second partition member 14 is attached to a higher position is a matter that can be selected as appropriate.

  An ion generator 15 is disposed on the upper part of the first partition member 13. The ion generation unit 15 includes a discharge electrode 15a and an electrode support member 15b that supports the discharge electrode 15a, and the electrode support member 15b is coupled to the first cover member 8 with a screw. The distance L between the tip of the discharge electrode 15a and the net member 12 on the front side is preferably set to 5 mm or more. The lead wire 15c to the discharge electrode 15a is connected to the power supply circuit through the gap between the first and second partition members 13 and 14. The principle of ion generation using the discharge electrode 15a is performed by a known method. The ions generated from the ion generating unit 15 are negative ions and positive ions, and exhibit sterilization and sterilization effects by these negative ions and positive ions.

  The 1st accommodating part K1 is provided with the blade | wing rotation motor 16 in the front side, and rotates the blade | wing 3 rotationally. A swing motor 17 is disposed on the rear side of the first housing portion K1. The swing motor 17 is coupled to the motor support board 18. A circuit board 19 on which a power supply circuit for driving the ion generator 15 is mounted is disposed immediately above the swing motor 17. The circuit arrangement surface of the circuit board 19 is arranged in a state inclined 45 degrees rearward. The circuit board 19 is coupled to the substrate support member 20, and the substrate support member 20 is coupled to another substrate 21 that is fixed to the second cover member 9. A specific circuit configuration of the power supply circuit is shown in FIG.

  As described above, since the ion generating part 15 is disposed above the first accommodating part K1, the protruding amount of the rear part of the blade can be suppressed. In particular, since it is arranged directly above the swing motor 16, the size of the second accommodating portion K2 does not need to be increased more than necessary. In addition, there is an opening 12 in front of the ion generator 15, and ions can be smoothly discharged forward. Ions are easily released to the front side by the blade 3. Further, since the power supply circuit is disposed immediately above the swing motor 17, the amount of protrusion on the rear side of the blade can be similarly suppressed.

  The relationship between the distance L between the discharge electrode 15a and the net member 12 on the front side and the amount of generated ions will be described. A measuring device for measuring the amount of ions at a position 1 m ahead from the forefront (the center of the protective cover 4) of the ion generating fan was disposed, and the amount of ions was measured by changing to L = 5, 6, 8, and 10 mm. The measurement results are shown in Table 1. It can be seen that the amount of ions increases as the distance L increases. It can also be seen that the amounts of negative ions and positive ions are generated in approximately equal amounts.

＜別実施形態＞
本実施形態では後方側保護カバー５には何も被せていない状態（ごく一般的な態様）であるが、保護カバー５に埃吸着用のフィルターを被せることができる。このフィルターを装着することにより生じる空気抵抗により、風洞（第２収容部Ｋ２）への空気取り込み量が増加し効率良くイオンを放出させることができる。また、フィルターにより保護カバー５の全体を覆うのではなく、開口部８ａのある位置はフィルターで覆わないようにする。これにより、風洞としての効果を維持することができる。

<Another embodiment>
In the present embodiment, the rear side protective cover 5 is not covered with anything (very common mode), but the protective cover 5 can be covered with a dust adsorption filter. Due to the air resistance generated by mounting this filter, the amount of air taken into the wind tunnel (second housing part K2) is increased, and ions can be efficiently released. In addition, the entire protective cover 5 is not covered by the filter, but the position where the opening 8a is present is not covered by the filter. Thereby, the effect as a wind tunnel can be maintained.

  In the present embodiment, the ion generator that generates negative ions and positive ions has been described. However, the present invention is not limited to this, and the present invention can also be applied to a fan that generates only negative ions. Further, when both negative ions and positive ions are generated, they may be generated at the same time or may be generated alternately, and the generation form is not limited to a specific form.

External view of the fan from the front External view of the fan from the back The figure which shows the state which removed the 2nd cover member Schematic which shows the structure of a 1st accommodating part and a 2nd accommodating part. Diagram showing the circuit configuration of the power supply circuit

Explanation of symbols

3 Blades 4 and 5 Protective cover 8 First cover member 8a Opening portion 9 Second cover member 9a Opening portions 11 and 12 Net member 13 First partition member 14 Second partition member 15 Ion generating portion 15a Discharge electrode 15b Electrode support member 16 blade rotation motor 17 swing motor 18 motor support board 19 power supply circuit K1 first housing portion K2 second housing portion

Claims (8)

A first accommodating portion that is disposed on the rear side of the blade and accommodates a motor that rotates the blade and a motor for swinging;
A second accommodating portion for accommodating an ion generating portion provided above the first accommodating portion for discharging ions to the front side;
An opening formed on each of the front side and the rear side of the second housing part;
An ion generating fan comprising: a net-like member attached to an opening provided before and after this.   The ion generating fan according to claim 1, wherein a partition member for partitioning the first housing portion and the second housing portion is provided.   The partition member includes a first partition member positioned on the front side and a second partition member positioned on the rear side, and the heights at which the first partition member and the second partition member are arranged are different. The ion generating fan according to claim 2.   As a cover member for forming the first storage portion and the second storage portion, the first cover member located on the front side, and a second cover member attached to the rear side of the first cover member, The ion generating fan according to claim 3, wherein the first partition member is attached to the first cover member, and the second partition member is attached to the second cover member.   The ion generating fan according to any one of claims 1 to 4, further comprising a substrate support member for mounting a circuit board on which an ion generating circuit is mounted above the swing motor.   The ion generating fan according to claim 5, wherein the circuit board is disposed below the partition member.   The electrode support member for attaching the discharge electrode which comprises an ion generating part was provided, and the distance of a discharge electrode and a front side opening part was set so that it might become 5 mm or more, The any one of Claims 1-6 characterized by the above-mentioned. The ion generating fan according to item 1.   A front protective cover that covers the blades, a rear protective cover, and a filter that covers the rear protective cover are provided, and the position of the opening on the front side of the second housing portion is not covered by the filter. The ion generating fan according to any one of claims 1 to 7, wherein the ion generating fan is configured as described above.

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