JP6133546B2 - Blower - Google Patents

Description

  The present invention relates to a blower device provided with a wind direction plate at an outlet.

  A conventional blower is disclosed in Patent Document 1. This blower device includes a main body casing installed on a floor surface, and opens a suction port and an outlet in the main body casing. A blower passage that connects the suction port and the blower outlet is formed in the main body housing, and a blower fan is disposed in the blower passage. The blower outlet is provided with a plurality of wind direction plates that change the wind direction. Each wind direction plate is formed by a plate-like member connected by a link, and rotates integrally to be arranged in a predetermined direction.

  In the blower configured as described above, indoor air flows into the blower passage from the suction port by driving the blower fan. The air flowing through the air passage is sent out from the outlet in a direction corresponding to the direction of the wind direction plate. Thereby, while ventilating toward a user, indoor air can be circulated.

Japanese Patent Laid-Open No. 2-185696 (2nd page to 3rd page, FIG. 2)

  However, according to the conventional blower, the wind direction plate is formed by the plate member. For this reason, if the inclination angle of the wind direction plate increases with respect to the air flow direction in the vicinity of the air outlet, the pressure loss of the air flowing through the air passage increases. For this reason, there existed a problem which the power consumption of an air blower becomes large.

  An object of this invention is to provide the air blower which can achieve the power saving by reducing the pressure loss by a wind direction board.

  In order to achieve the above object, the present invention provides a suction port and an air outlet that are opened in a main body housing, an air passage that is arranged in the main body housing and communicates the air inlet and the air outlet, and the air passage. In a blower provided with a blower fan arranged inside and a wind direction plate arranged in the blower outlet, the blower passage has a plurality of divided passages divided by a partition plate downstream of the blower fan, The wind direction plate has a flexible portion made of a flexible member, and extends from the downstream end of the partition plate, and moves the tip in a direction intersecting the air flow to vary the wind direction.

  According to this configuration, when the blower fan is driven, indoor air flows into the blower passage from the suction port, and flows through the plurality of divided passages divided by the partition plate downstream of the blower fan. The airflow flowing through the dividing passage flows along the curved flexible portion of the wind direction plate extending from the downstream end of the partition plate, and is sent out in a predetermined direction from the outlet.

  According to the present invention, in the blower configured as described above, the blower fan is a centrifugal fan. According to this configuration, the airflow is guided in the direction of the one wall surface of the blower passage by the centrifugal force of the centrifugal fan. At this time, the airflow is prevented from being biased by the divided passage, and the airflow is uniformly sent from the outlet.

  According to the present invention, in the blower configured as described above, a hard portion made of a hard member is provided at a tip of the wind direction plate. According to this structure, a hard part is exposed from a blower outlet and damage to a wind direction board when a user's finger | toe contacts can be prevented.

  In the air blower configured as described above, the present invention is characterized in that the flexible part is made of polyethylene and the hard part is made of acrylic.

  Further, the present invention is characterized in that in the air blower configured as described above, an ion generating device that discharges ions toward the air blowing passage downstream of the air blowing fan is provided. According to this configuration, ions are released into the blower passage by driving the ion generator, and an airflow containing ions is sent out from the blowout port.

  According to the present invention, since the wind direction plate extending from the downstream end of the partition plate that forms the wall surface of the division passage has the flexible portion, the airflow flowing through the division passage smoothly flows and blows along the curved flexible portion. Sent from the exit. Therefore, it is possible to reduce the pressure loss due to the wind direction plate and save power in the blower.

The perspective view of the air blower of embodiment of this invention The side view which shows the inside of the air blower of embodiment of this invention The perspective view which shows the ion generator of the air blower of embodiment of this invention The perspective view which shows the wind direction board of the air blower of embodiment of this invention. The side view which shows the wind direction board of the air blower of embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an air blower according to an embodiment. In the figure, white arrows indicate the direction of air flow. The blower device 1 includes a main body housing 2 having a columnar shape and a pedestal portion 3 disposed below the main body housing 2.

  The main body housing 2 is formed in a column shape extending vertically in the vertical direction. The main body housing 2 has a circular bottom surface, and a portion from a substantially central portion in the vertical direction to the upper end is formed in a substantially rectangular parallelepiped shape. The upper part of the substantially rectangular parallelepiped shape has a longer front and rear length than a lateral width, and is curved so that the left and right side surfaces bulge outward.

  Both side surfaces of the upper portion of the main body housing 2 are covered with an exterior cover 2 a, and one side surface of the lower portion is covered with a ventilation plate 9 that opens the suction port 4. An air outlet 5 is opened in the upper front of the main body housing 2. An operation unit 6 is provided on the upper surface of the main body housing 2.

  The pedestal portion 3 has a circular shape in plan view, and supports the main body housing 2 erected on the upper surface. A power cord 8 is led out on the peripheral surface of the pedestal 3. When a displacement motor (not shown) provided at the lower portion is driven, the main body housing 2 rotates in a horizontal plane with respect to the pedestal portion 3 about a rotation axis extending in the vertical direction provided at the radial center. As a result, the main body housing 2 is reciprocated within a predetermined angle range to perform a swinging motion.

  FIG. 2 is a side view showing the inside of the blower 1 with the exterior cover 2a and the ventilation plate 9 removed. A blower passage 20 is provided in the main body housing 2 so as to extend in the vertical direction and allow the suction port 4 and the blowout port 5 to communicate with each other. A blower fan 7 is disposed inside the blower passage 20 and below the main body housing 2.

  The blower fan 7 is constituted by a centrifugal fan such as a sirocco fan, and an air inlet (not shown) is arranged facing the air inlet 4. The exhaust port 7a of the blower fan 7 opens upward. The air sucked from the suction port 4 by the drive of the blower fan 7 flows toward the blower outlet 5. The blower fan 7 may be constituted by a turbo fan.

  The blower passage 20 extends toward the upper side downstream of the blower fan 7, curves toward the front blower outlet 5, and has a plurality of divided passages 22 divided by the partition plate 21. In the present embodiment, six dividing passages 22 are provided by five partition plates 21. The divided passages 22 are arranged in a line in the front-rear direction of the blower 1 at the inlet 23 and in a line in the vertical direction at the outlet 24. The partition plate 21 forms upper and lower wall surfaces of the divided passage 22, and six wind direction plates 25 are arranged at the outlet 5 so as to extend the partition plate 21 and the lower wall 26 of the blower passage 20.

  An ion generator 30 that generates ions is disposed between the blower fan 7 and the divided passage 22. Since the ion generator 30 is disposed downstream of the blower fan 7, it is possible to prevent the disappearance of ions due to the collision with the blower fan 7.

  FIG. 3 shows an external perspective view of the ion generator 30. The ion generator 30 is packaged by disposing a discharge electrode and other electronic components in a housing 31. The ion generator 30 includes a circuit unit (not shown), a positive ion generator 32P, and a negative ion generator 32N. The circuit unit is provided with a high voltage electricity generation circuit that generates a high voltage electric pulse by receiving power supply from the outside.

  The positive ion generator 32P includes a positive discharge electrode 33P, and the negative ion generator 32N includes a negative discharge electrode 33N. The two pairs of the positive discharge electrode 33P and the negative discharge electrode 33N are each formed in a needle shape, arranged side by side at a predetermined interval, and face the blower passage 20 through the opening.

  Both the positive ion generator 32P and the negative ion generator 32N are formed in the same structure. A high voltage generated by the high voltage electricity generation circuit is supplied to each of the positive discharge electrode 33P and the negative discharge electrode 33N to generate a discharge and release ions.

A voltage having an AC waveform or an impulse waveform is applied to the positive discharge electrode 33P and the negative discharge electrode 33N. A positive voltage is applied to the positive discharge electrode 33P, and hydrogen ions generated by corona discharge combine with moisture in the air to generate positive ions mainly composed of H ⁺ (H ₂ O) m.

A negative voltage is applied to the negative discharge electrode 33N, and oxygen ions generated by corona discharge combine with moisture in the air to generate negative ions mainly composed of O ₂ ⁻ (H ₂ O) n. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate on the surface of airborne bacteria and odorous components and surround them.

Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are aggregated and formed on the surface of the microorganism or the like by collision. Destroy airborne bacteria and odorous components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, the ion generator 30 releases positive ions and negative ions into the air passage 20, and positive ions and negative ions are sent out from the outlet 5. Thereby, indoor sterilization and deodorization can be performed, for example.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  In this embodiment, positive ions and negative ions are generated by the ion generator 30, but only positive ions or only negative ions may be generated.

  Alternatively, the ion generator 30 may be an electrostatic atomizer that generates ions composed of charged fine particle water. Charged fine particle water containing a radical component is generated by the electrostatic atomizer. That is, condensation water is generated on the surface of the discharge electrode by cooling the discharge electrode provided in the electrostatic atomizer by the Peltier element. Next, when a negative high voltage is applied to the discharge electrode, charged fine particle water is generated from the dew condensation water. Further, negative ions released into the air together with the charged fine particle water are also generated from the discharge electrode.

  4 and 5 show a perspective view and a side view of the wind direction plate 25. The wind direction plate 25 includes a flexible portion 25a disposed on the upstream side and a hard portion 25c disposed on the downstream side. The flexible portion 25a is formed of a flexible member having flexibility, and for example, a soft resin such as polyethylene is used. The hard part 25c is formed of a hard member, and for example, a hard resin such as ABS or acrylic is used. The flexible portion 25a and the hard portion 25c are integrally formed by, for example, two-color molding.

  The hard portion 25 a is disposed at the tip of the wind direction plate 25 and exposed from the air outlet 5. Thereby, when a user's finger penetrate | invades into the blower outlet 5, a finger will contact the hard hard part 25c. For this reason, it is possible to prevent the wind direction plate 25 from being damaged due to the fingers coming into contact with the soft flexible portion 25a having low strength.

  Shaft portions 25b that are pivotally supported by the main body housing 2 are provided on both side surfaces of one end of the flexible portion 25a. The shaft portion 25b is disposed adjacent to the downstream ends of the partition plate 21 (see FIG. 2) and the lower wall 26 (see FIG. 2). As a result, the wind direction plate 25 is disposed extending from the downstream ends of the partition plate 21 and the lower wall 26.

  Engagement elements 25d that fit into guide grooves 27 provided on the side wall of the air passage 20 project from both side surfaces of the hard part 25c. Each engagement element 25d of the plurality of wind direction plates 25 is connected by a link member (not shown), and the link member is connected to a wind direction variable motor (not shown). The engagement elements 25d are displaced together in the guide groove 27 by the wind direction variable motor.

  Thereby, the front-end | tip of the wind direction board 25 is moved to the direction which cross | intersects an air flow, arrange | positions in a desired direction, and the wind direction of the air sent out from the blower outlet 5 (refer FIG. 2) is varied. At this time, since the flexible portion 25a is bent and the wind direction plate 25 is bent, the air flowing through the divided passage 22 smoothly flows along the flexible portion 25a. Therefore, the pressure loss due to the wind direction plate 25 can be reduced. The wind direction variable motor (not shown) can be continuously driven to swing the wind direction plate 25.

  In the air blower 1 having the above configuration, the air blowing fan 7 and the ion generator 30 are driven by the operation of the operation unit 6. As a result, indoor air flows into the air passage 20 from the suction port 4 at the bottom of the main body housing 2. The air flowing into the air passage 20 includes ions generated by the ion generator 30.

  The airflow containing ions is divided into a plurality of divided passages 22 and circulates. The air current is guided in the outer circumferential direction of the air passage 20 by the centrifugal force of the air fan 7 formed of a centrifugal fan. At this time, the airflow is uniformly dispersed from the inlet portion 23 of the blower passage 20 to each of the divided passages 22 to prevent the airflow from being biased. And the airflow which distribute | circulates each division | segmentation channel | path 22 is uniformly sent in the direction according to the wind direction board 25 from the blower outlet 5. FIG. Thereby, the airflow containing ions can diffuse into the room and sterilize the room.

  Moreover, when the ion generator 30 is stopped and the blower fan 7 is driven, it is possible to blow air toward the user and circulate indoor air.

  According to the present embodiment, since the wind direction plate 25 extending from the downstream end of the partition plate 21 that forms the wall surface of the division passage 22 has the flexible portion 25a, the airflow flowing through the division passage 22 is along the curved flexible portion 25a. Then, it circulates smoothly and is sent out from the outlet 5. Therefore, the pressure loss due to the wind direction plate 25 can be reduced, and power saving of the blower 1 can be achieved.

  Further, since the blower fan 7 is a centrifugal fan, the airflow is guided toward the upper wall of the blower passage 20 by the centrifugal force of the centrifugal fan. At this time, the divisional passage 22 prevents the airflow from being biased, and the airflow can be sent out from the outlet 5 uniformly. In addition, you may form the ventilation fan 7 with a propeller fan or a cross flow fan. In this case as well, the airflow is prevented from being biased by the divided passage 22, and the airflow can be sent out uniformly from the outlet 5.

  Moreover, since the hard part 25c which consists of a hard member was provided in the front-end | tip of the wind direction board 25, the hard part 25a is exposed from the blower outlet 5, and damage to the wind direction board 25 when a user's finger | toe contacts can be prevented. it can.

  Further, since the flexible portion 25a is formed of polyethylene and the hard portion 25c is formed of acrylic, the wind direction plate 25 that can reduce pressure loss and prevent breakage can be easily realized. Note that other materials may be used for the flexible portion 25a as long as the material has flexibility. For example, other soft resins (soft vinyl chloride, polypropylene, etc.), rubber, cloth, etc. can be used.

  Moreover, since the ion generator 30 which discharges | emits ion toward the ventilation path 20 downstream from the ventilation fan 7 was provided, ion can be sent out from the blower outlet 5 and indoor sterilization etc. can be performed. At this time, ions can be uniformly sent from the outlet 5 by the divided passage 22, and pressure loss can be reduced by the flexible portion 25 a of the wind direction plate 25.

  According to this invention, it can utilize for the air blower provided with the wind direction board in the blower outlet.

DESCRIPTION OF SYMBOLS 1 Air blower 2 Main body housing | casing 3 Base part 4 Suction inlet 5 Air outlet 6 Operation part 7 Blower fan 20 Blower passage 21 Partition plate 22 Dividing passage 25 Air direction plate 25a Flexible part 25c Hard part 27 Guide groove 30 Ion generator

Claims (3)

A suction port that opens in the lower part of the main body housing, an air outlet that extends in the vertical direction on the upper front surface of the main body housing, and an air outlet that is arranged in the main body housing to allow the suction port and the air outlet to communicate with each other A blower comprising a blower passage, a blower fan comprising a centrifugal fan disposed at a lower portion of the blower passage , and a plurality of wind direction plates disposed at the outlet, wherein the blower passage is downstream of the blower fan. It has a plurality of divided passages that extend upward and curve forward, and are divided by a partition plate, and the wind direction plate has a flexible portion made of a flexible member and from the downstream end of the partition plate Extend and move the tip in the direction intersecting the airflow to change the wind direction,
Each of the wind direction plates has an engagement element projecting from both side surfaces, a link member that connects the engagement elements, a wind direction variable motor that is connected to the link member, and a side wall of the air passage that is arranged on each side of the air passage. A plurality of guide grooves into which the engagement elements are fitted, and each of the engagement elements is displaced in the guide grooves by driving the wind direction variable motor, whereby the flexible portion is bent and the wind direction is varied ,
The air blower characterized in that the flow velocity of the air flow sent out from the upper part of the air outlet is larger than the flow velocity of the air flow sent out from the lower part . The blower according to claim 1 , wherein the flexible portion is made of polyethylene, and the tip of the wind direction plate is made of acrylic. Blower according to claim 1 or claim 2 characterized by comprising an ion generating device that emits ions toward the air passage on the downstream side of the blower fan.

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