JP5931550B2 - Blower - Google Patents

Description

  The present invention relates to a blower device including a blower passage in a main body casing.

  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. A detachable filter is disposed at the suction port, and a plurality of wind direction plates that change the wind direction are provided at the air outlet.

  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 described above, there is a problem that fine dust that has passed through the filter disposed in the suction port accumulates in the blower passage, and the blowing efficiency is lowered.

  An object of this invention is to provide the air blower which can prevent the fall of air blowing efficiency.

  In order to achieve the above-described object, the present invention is divided into a suction port and an air outlet opening in a main body housing, and the suction port and the air outlet port in the main body housing so as to communicate with each other and a partition plate. A blower passage having a plurality of divided passages, a blower fan disposed upstream of the divided passages in the blower passages, and a removable inner covering the divided passages and forming side walls of the blower passages by inner surfaces A cover and a removable outer cover that covers the inner cover and forms the outer surface of the main body housing, and the inner cover has a marking portion formed along the partition plate on the outer surface. Yes.

  According to this configuration, when the blower fan is driven, indoor air flows from the suction port into the blower passage. The air that has flowed into the blower passage flows through the plurality of divided passages divided by the partition plate downstream of the blower fan, and is sent out from the blower outlet. When the outer cover and the inner cover are removed, the inside of the air passage including the divided passage can be cleaned. A marking portion formed along the partition plate is provided on the outer surface of the inner cover, and the inner cover is mounted so as to overlap the marking portion on the partition plate.

  Further, the present invention provides the air blower configured as described above, wherein the suction port is provided at a lower portion of the main body housing, and the air outlet is provided on the front surface of the main body housing above the suction port. The lower part extends in the vertical direction and the upper part is curved toward the outlet.

  According to this configuration, air flows into the air passage from the suction port disposed in the lower part of the main body casing. The air that has flowed into the air passage flows upward along the partition plate, curves forward, and is sent out from the outlet.

  According to the present invention, in the air blower configured as described above, a fitting groove that fits into the partition plate is provided on the inner surface of the inner cover, and a rear surface of the fitting groove protrudes from an outer surface of the inner cover. Is formed. According to this configuration, the partition plate is fitted into the fitting groove, and the inner cover is mounted. The rear surface of the fitting groove projects from the outer surface of the inner cover, and a marking portion is formed along the partition plate.

  Further, the present invention is characterized in that, in the blower configured as described above, the marking portion includes a rib that extends from a rear surface of the fitting groove by extending a side wall of the fitting groove.

  Further, the present invention provides the air blower configured as described above, wherein the outer cover is formed in an outwardly convex curved surface and has a reinforcing rib that protrudes from the inner surface and extends in a direction intersecting the partition plate. The reinforcing rib is sometimes abutted against the marking portion.

  According to this configuration, the outer cover that forms the outer surface of the main body casing is curved, and the reinforcing rib provided on the inner surface of the outer cover comes into contact with the marking portion that protrudes from the outer surface of the inner cover. Thereby, deformation of the outer cover is prevented.

  Further, the present invention is the air blower configured as described above, wherein the flow passage area downstream of the divided passage is restricted by the inner cover with respect to the upstream, and the marking portion facing the upstream portion of the divided passage is the fitting groove. It has a groove portion formed on the outer surface of the inner cover by extending both side walls of the inner cover.

  According to this configuration, the flow path area of the divided passage is narrowed on the downstream side by the inner cover, and the wind speed of the airflow sent from the outlet is increased. A groove portion formed by extending both side walls of the fitting groove is recessed on the outer surface of the inner cover facing the upstream portion of the division passage, and a marking portion is formed along the partition plate by the groove portion.

  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, the air passage having the division passage divided by the partition plate is provided inside the main body housing having the outer surface formed by the removable outer cover. Moreover, the removable inner cover which covers a division | segmentation channel | path has the marking part along a partition plate in the outer surface. Thereby, the outer cover and the inner cover can be removed to clean the air passage including the divided passage. Accordingly, it is possible to prevent the air blowing efficiency of the air blower from being lowered and keep the airflow sent out clean. In addition, after cleaning the air passage, the inner cover can be easily attached by placing the marking portion on the partition plate, and the convenience of the air blower can be improved.

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 front view which shows the inner cover of the air blower of embodiment of this invention AA sectional view of FIG. BB sectional view of FIG. The perspective view which shows the ion generator 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 part of the main body housing 2 are covered with an exterior cover 2a of a detachable resin molded product having a convex curved surface. One side surface of the lower part of the main body housing 2 is covered with an exterior cover 2b made of a removable resin molded product with the suction port 4 opened. The exterior cover 2 b is provided with a filter (not shown) facing 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 and shows a state in which exterior covers 2 a and 2 b and an inner cover 10 (see FIG. 3) to be described later are removed from the main body housing 2. 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 or an axial 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. The wind direction plate 25 is pivotally supported by the main body housing 2 at the upstream end, and a projection (not shown) protruding from the side surface is fitted into a guide groove 27 provided in the main body housing 2. The protrusion is displaced in the guide groove 27, and the direction of the wind direction plate 25 is changed.

  FIG. 3 shows a front view of the inner cover 10 covering the divided passage 22. The inner cover 10 is formed of a resin molded product and is detachably disposed. The inner cover 10 forms a side wall of the division passage 22, and the flow passage area of the outlet portion 24 is gradually reduced with respect to the inlet portion 23 of the division passage 22. Thereby, the wind speed of the airflow sent out from the blower outlet 5 can be enlarged, and airflow reaches indoors.

  On the outer surface of the inner cover 10, a marking portion 11 that is visually recognized at the time of mounting is formed along the partition plate 21. 4 and 5 show the AA and BB sectional views of FIG. 3, respectively. 4 shows the vicinity of the inlet portion 23 (see FIG. 2) on the upstream side of the dividing passage 22, and FIG. 5 shows the downstream side of the inlet portion 23.

  The flow path width of the divided passage 22 is determined by the inner surface of the inner cover 10, and the flow path width W2 in the left-right direction on the downstream side of the divided passage 22 is formed smaller than the flow path width W1 on the upstream side. As a result, the downstream flow passage area is reduced with respect to the upstream of the division passage 22.

  A fitting groove 10 a that fits into the partition plate 21 is formed on the inner surface of the inner cover 10. In the upstream portion where the channel width W1 is large, both side walls of the fitting groove 10a are extended, and the groove portion 10b is recessed on the outer surface of the inner cover 10. The marking part 11 along the partition plate 21 is formed by the groove part 10b.

  In the downstream portion where the flow path width W2 is small, the back surface of the fitting groove 10a protrudes from the outer surface of the inner cover 10. A marking portion 11 along the partition plate 21 is formed by the back surface of the fitting groove 10a. Further, in the downstream portion, a rib 10c extending from one side wall of the fitting groove 10a protrudes from the back surface of the fitting groove 10a. The marking part 11 can be visually recognized more clearly by the rib 10c.

  Since the outer cover 2a is formed in a curved surface that protrudes outward, reinforcing ribs 2c for reinforcement are provided on the inner surface so as to extend in a direction intersecting the partition plate 21. The reinforcing rib 2c comes into contact with the rib 10c of the inner cover 10 when the outer cover 2a is attached. Thereby, when the outer cover 2a is pressurized from the outside, the deformation of the outer cover 2a can be prevented. In addition, the rib 10c may be omitted and the reinforcing rib 2c may contact the back surface of the fitting groove 10a.

  In FIG. 2, 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. 6 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.

  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.

  When the outer covers 2a and 2b and the inner cover 10 are removed, the inside of the air passage 20 including the divided passage 22 can be cleaned. Thereby, the fall of the ventilation efficiency of the air blower 1 can be prevented, and the airflow sent from the blower outlet 5 can be maintained cleanly. When the cleaning of the air passage 20 is completed, the inner cover 10 is mounted so that the marking portion 11 overlaps the partition plate 21. As a result, the user can easily determine the mounting direction of the inner cover 10 and attach the inner cover 10 easily.

  According to the present embodiment, the blower passage 20 having the divided passage 22 divided by the partition plate 21 is provided inside the main body housing 2 having an outer surface formed by the removable outer covers 2a and 2b. Further, the removable inner cover 10 covering the division passage 22 has a marking portion 11 along the partition plate 21 on the outer surface. Thereby, the outer cover 2a, 2b and the inner cover 10 can be removed, and the inside of the ventilation passage 22 including the division passage 21 can be cleaned. Accordingly, it is possible to prevent the air blowing efficiency of the blower device 1 from being lowered and keep the airflow sent clean. Moreover, the marking part 11 can be piled up on the partition plate 21 after cleaning the ventilation path 20, and the inner cover 10 can be attached easily, and the convenience of the air blower 1 can be improved.

  Further, the suction port 4 is provided in the lower part of the main body housing 2 and the air outlet 5 is provided in the upper front surface of the main body housing 2. The lower part of the partition plate 21 extends in the vertical direction and the upper part is curved toward the air outlet 5. . Thereby, the marking part 11 formed along the partition plate 21 curves forward, and the mounting direction of the inner cover 10 can be easily identified.

  In addition, since the rear surface of the fitting groove 10 a that fits into the partition plate 21 protrudes from the outer surface of the inner cover 10 to form the marking portion 11, the marking portion 11 can be easily formed by molding the inner cover 10. it can.

  Moreover, since the marking part 11 has the rib 10c which extends the side wall of the fitting groove 10a and protrudes from the back surface of the fitting groove 10a, the marking part 11 can be visually recognized more clearly.

  Further, a reinforcing rib 2c that protrudes from the inner surface of the outer cover 2a that is formed on the outer convex surface and extends in a direction intersecting the partition plate 21 is provided, and the reinforcing rib 2c is a rib of the marking portion 11 when the outer cover 2a is mounted. 10c. Thereby, when the outer cover 2a is pressurized from the outside, the deformation of the outer cover 2a can be prevented.

  In addition, the flow path area downstream of the divided passage 22 with respect to the upstream is restricted by the inner cover 10, and the marking portions 11 facing the upstream portion extend on both side walls of the fitting groove 10 a on the outer surface of the inner cover 10. It is formed by the recessed groove portion 10b. Thereby, while marking part 11 can be formed easily, since the wind speed of the air current sent out from blower outlet 5 becomes large, an air current reaches indoors.

  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.

  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 the present embodiment, the marking portion 11 is formed by the back surface of the fitting groove 10a, the rib 10c, and the groove portion 10b. However, the marking portion 11 may be formed by printing on the outer surface of the inner cover 10.

  According to this invention, it can utilize for the air blower provided with the ventilation path in the main body housing | casing.

DESCRIPTION OF SYMBOLS 1 Air blower 2 Main body housing | casing 2a, 2b Outer cover 2c Reinforcement rib 3 Base part 4 Suction port 5 Air outlet 6 Operation part 7 Blower fan 10 Inner cover 10a Fitting groove 10b Groove part 10c Rib 11 Marking part 20 Blower passage 21 Partition plate 22 Dividing passage 25 Wind direction plate 27 Guide groove 30 Ion generator

Claims (7)

  An air inlet and an air outlet opening in the main body housing, an air passage having a plurality of dividing passages arranged in the main body housing and communicating with the air inlet and the air outlet and divided by a partition plate; A blower fan disposed upstream of the divided passage in the blower passage, a removable inner cover that covers the divided passage and forms a side wall of the blower passage by an inner surface, and covers the inner cover and the main body An air blower comprising: a removable outer cover that forms an outer surface of a housing; and the inner cover has a marking portion formed along the partition plate on the outer surface.   The inlet is provided in the lower part of the main body casing, the outlet is provided in the front of the main body casing above the inlet, the lower part of the partition plate extends in the vertical direction, and the upper part is the outlet. The air blower according to claim 1, wherein the air blower is curved toward the front.   The fitting groove for fitting to the partition plate is provided on the inner surface of the inner cover, and the marking portion is formed by projecting the rear surface of the fitting groove to the outer surface of the inner cover. Or the air blower of Claim 2.   The blower according to claim 3, wherein the marking portion includes a rib extending from a rear surface of the fitting groove by extending a side wall of the fitting groove.   The outer cover has a reinforcing rib formed on the outer convex surface and has a reinforcing rib protruding from the inner surface and extending in a direction intersecting the partition plate, and the reinforcing rib contacts the marking portion when the outer cover is mounted. The air blower according to claim 3 or 4, characterized by the above.   The flow path area downstream of the divided passage with respect to the upstream is restricted by the inner cover, and the marking portions facing the upstream portion of the divided passage extend both side walls of the fitting groove to It has a groove part formed in an outer surface, The air blower in any one of Claims 3-5 characterized by the above-mentioned.   The blower according to any one of claims 1 to 6, further comprising an ion generator that discharges ions toward the blower passage downstream of the blower fan.

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