JP5679932B2 - Portable blower - Google Patents

Description

  The present invention relates to a portable air blower including a blower fan in a portable housing.

  A conventional portable blower is disclosed in Patent Document 1. In this portable blower, a suction port is opened on the back surface of a portable thin box-shaped housing, and an air outlet is opened on the front surface. An air passage that connects the suction port and the air outlet is provided in the housing, and a blower fan including an axial fan is disposed in the air passage. Further, a rotatable stand is provided on the side surface of the housing. When the stand is rotated and brought into contact with the installation surface of the table, the case can be set up on the table by supporting the stand.

  When the blower fan is driven in a state where the casing is erected on the installation surface of the table by the stand, outside air flows into the air passage from the suction port. At this time, the rear surface of the casing is inclined to face the installation surface, and an air flow is sent obliquely upward from the front outlet toward the user's head and the like. Thereby, coolness can be obtained easily outdoors or indoors.

JP 2008-57519 A

  However, according to the conventional portable blower, the blower fan is exposed, and when the portable blower is hung from the neck, the clothes block the inlet or outlet of the blower fan depending on the orientation of the blower. There was a problem. In addition, since the blower fan is exposed, foreign matter may enter the rotating portion and damage the device. Further, since the blower fan can be directly seen from the outside, there is a problem that it is not beautiful in appearance.

  In order to achieve the above-mentioned object, the present invention covers the appearance with a case formed with a smooth curve, and forms a substantially rectangular parallelepiped. It was.

  In addition, a stand leg is provided to enable desktop installation, and the leg is pivotally supported on the main body substantially in the center in the length direction to increase the opening / closing angle of the leg.

  In addition, when the legs are not used, the structure is housed in the housing portion of the main body so that it can be seen integrally with the main body, so that the appearance is maintained.

  In addition, it was designed to prevent the air inlet from being greatly affected by the posture of the device, so that the suction port was not blocked when the leg was used or stored.

  According to the present invention, the appearance portion is covered with a case having a smooth curve, and the blower fan is housed inside, so that the appearance is beautiful.

  In addition, because it is equipped with a leg for desktop installation, it can be used not only for carrying but also for desktop installation.

  In addition, the leg can be stored in the main body, and the leg does not block the suction port even when the leg is stored. Therefore, the air blowing performance can be sufficiently exerted even when used on a table or suspended from the neck.

The external view which looked at the portable air blower of this invention from the front. The external view which looked at the portable air blower of this invention from the back. The external view which looked at the portable air blower of this invention from the upper surface. The right view which shows the state which closed the leg of the portable air blower of this invention. The internal structure figure of the portable air blower of this invention by the cross section of the AA line in FIG. It is a figure which shows an example of the shape of the leg of the portable air blower of this invention, (a) is a top view, (b) is a side view, (c) is sectional drawing of CC line. The figure which shows the desk installation state 1 of the portable air blower of this invention. The figure which shows the desktop installation state 2 of the portable air blower of this invention. The figure which shows the desktop installation state 3 of the portable air blower of this invention. The external view which looked at the portable air blower concerning other embodiment of this invention from the back. It is a figure which shows the shape of the leg concerning other embodiment of the portable air blower of this invention, (a) is a top view, (b) is a side view.

  Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a front view showing a portable blower according to this embodiment. As an example, the portable blower 1 includes a thin box-shaped housing 2 having a substantially rectangular shape in front view, which is formed in a portable size of about 100 mm long × 80 mm wide × 25 mm thick. In the figure, the air outlet is provided at the upper end portion of the housing 2 and the suction port is hidden but is provided at the lower end portion.

  Further, a display unit 4 is provided on the front (front side) case 2 a of the housing 2. The display unit 4 displays operation information of the portable blower 1 using a display unit such as an LED. It is also preferable to display the operation status of the apparatus, the operation time, the accumulated operation time, and the remaining battery level using display means such as an LED or a liquid crystal.

  FIG. 2 is a view of the portable air blower 1 as viewed from the back, and shows a state in which the legs 3 are closed. A back (back side) case 2b opposite to the front case 2a forms a housing 2 that fits with the front case 2a and forms an appearance portion. The legs 3 are pivotally supported on both side surfaces of the housing 2 at the center of the main body with the direction connecting the air outlet 7 provided at the upper end and the suction port 6 provided at the lower end as will be described later. Further, it is a generally U-shaped bar, and is housed in a housing portion 2 f formed as a groove-like recess in the rear case 2 b of the housing 2. When the leg 3 is not in use, the leg 3 is housed in the lower part in the vertical direction (lower half part).

  By providing the pivot shafts of the legs 3 at substantially the center left and right in the vertical direction of the back case 2b, the legs 3 can be rotated at an angle of less than 180 ° when viewed from the stored state. The leg 3 can be held at a plurality of opening angles, and with the leg 3 being open, the casing 2 is supported on the installation surface of the table by the support of the leg 3, and the portable blower device 1 is arbitrarily set up to be described later It can be installed in the form. Therefore, the legs 3 constitute a support part that supports the housing 2 when the portable air blower 1 is installed on the installation surface of the tabletop.

  A suction port 6 for sucking outside air is formed in the lower portion of the housing 2 and at the lower end of the back case 2b. A net for preventing dust from being sucked in is attached to the suction port 6. The suction port 6 is always visible from the outside on the back case 2 b side, and can suck in the outside air without being affected by the opening and closing of the legs 3.

  The front case 2a and the back case 2b constituting the housing 2 are formed with curved surfaces in the vertical and horizontal directions, and a curved surface having a large radius is given to a portion corresponding to a ridge line of a normal housing (FIG. 1). , See FIG. 3, FIG. Therefore, the portable air blower 1 does not have a clear ridge line unlike a normal cuboid casing. With this configuration, the housing 2 has a shape in which the thickness direction of the center portion is greatly expanded.

  FIG. 3 is a view as seen from the upper surface of the portable blower 1, and the air outlet 7 is opened on the upper surface of the outer appearance formed by the front case 2 a and the back case 2 b. At the opening of the air outlet 7, a blowing grid 2 d is provided, and the air outlet 7, which is the opening, is formed so as to be largely biased in the direction of the front case 2 a. When the portable blower 1 is placed directly on a desk or the like without using a leg due to the case 2 being formed with a curved surface having a large radius and the air outlet 7 being biased toward the front case 2a, In addition, when hung from the neck, a distance is ensured between the contact surface with the desk or the human body and the center of the outlet, and air can be sent out without hindering the sending of the airflow.

  FIG. 4 is a right side view of the portable blower 1, and a power switch 5 is provided on the side surface 2c. When the power switch 5 is set to the [ON] position, the blower fan 17 and the ion generator 18 shown in FIG. 5 are energized to start operation. The display unit 4 displays operation information and operation information such as the ion generation status of the ion generator and the remaining battery status.

  FIG. 5 is a cross-sectional view showing the internal structure of the portable blower 1 taken along the line AA in FIG. Isolation chambers 22b and 22c for storing the ion generator 18 and the battery 19 are provided on the back case 2b side. A control board 15 on which the control circuit of the portable blower 1 is mounted is attached to the inside of the back case 2b. Notch portions are provided in the respective isolation chambers 22 b and 22 c, and terminal portions 15 a facing the isolation chamber 22 b for storing the ion generator 18 and the isolation chamber 22 c for storing the battery 19 are connected to the control substrate 15. . The ion generator 18 and the battery 19 housed in the isolation chambers 22b and 22c, respectively, are connected to the control circuit via the terminal portion 15a.

  A blower fan 17 is provided between the control board 15 and the front case 2a. The blower fan 17 is stopped by a boss standing from the back case 2b via a vibration isolating rubber. The blower fan 17 is a double-sided suction type turbofan, and two air inlets (not shown) of the blower fan 17 opening in the axial direction of the housing are respectively arranged in the thickness direction of the housing 2. In this structure, the air sucked from the suction port 6 is sucked through two paths: a path that passes through the gap between the control board 15 and the blower fan 17 and a path that passes through the gap 25 between the front case 2 a and the blower fan 17. Circulated air can be supplied.

  One suction path passes through the control board 15 and the isolation chamber 22c to cool each of the control board 15 and the bottom wall of the isolation chamber 22c and indirectly cool the battery 19. The other suction path passes through the side of the control board 15 and reaches the gap 25 with the front case to cool the control board 15.

  In addition, an air passage 8 is formed inside the front case 2 a by being covered with a partition panel 22 that connects the blower fan 17 and the air outlet 7. The partition panel 22 is a wall body having a substantially U-shaped cross section, and is combined with the bottom wall of the isolation chamber 22 b to form the air passage 8. For this reason, the air flowing through the air passage 8 cools the bottom wall of the isolation chamber 22b and indirectly cools the ion generator 18.

  A rectifying guide (not shown) for rectifying the blown airflow is provided on the bottom wall of the isolation chamber 22 b toward the air passage 8. The rectifying guides are a plurality of plates erected on the bottom wall of the isolation chamber 22b and serve to expand the surface area of the isolation chamber 22b, thereby efficiently cooling the isolation chamber 22b.

  In addition, the attachment part 2h which has the attachment hole which attaches a neck strap to the upper end part of the back case 2b outside the housing | casing 2 is provided, A neck strap is tied with this attachment part 2h, and the portable air blower 1 is used by a user. Can be carried by hanging from the neck.

  Next, the structure of the leg 3 will be described. As shown in FIG. 6, the leg 3 has a generally U-shape, and the leg main body 3 c has a substantially triangular cross-sectional shape. The leg 3 is pivotally supported on the housing 2 by a hinge mechanism. The hinge mechanism of the leg 3 is provided with gears 3a and 3b as latch structures at two open end portions of the leg 3 facing each other and a tension spring (not shown). In FIG. 2, gears 3a and 3b are integrally provided at both open ends of the U-shaped leg 3, and left and right are respectively inserted through through holes provided on both side surfaces of the back case 2b so as to be freely rotatable. Supported by The gears 3a and 3b are formed with a plurality of teeth all around the shaft portion of the leg 3. A shaft is disposed between adjacent teeth of the gear. One end of the tension spring is hooked to a shaft (not shown) and the other end is hooked to a boss standing on the back case 2b, and constitutes a biasing means for biasing the shaft in a direction of pressing the gear against the gear.

  As the leg 3 rotates, the gears 3a and 3b rotate together, and the shaft moves in the direction of the gear tip against the biasing force of the tension spring. And the opening / closing angle of the leg 3 can be controlled by the relative movement of the shaft in the circumferential direction between the teeth. Thereby, coupled with the shape of the leg storage portion 2f of the housing 2, the leg 3 can be held (restricted) at an appropriate arbitrary angle less than 180 °. Therefore, when the leg 3 is held at an arbitrary angle state and placed on the installation surface on the table, the back case 2b of the housing 2 can maintain the posture at an arbitrary angle facing the installation surface. .

  Further, as shown in FIG. 8, when the leg 3 is stored at 0 ° and opened to about 160 ° and the back surface of the housing 2 is directed to the desk, the posture of the portable blower 1 is kept low. Airflow can be blown out at an elevation angle of about 10 °. Further, as shown in FIG. 9, when the legs 3 are narrowly opened to about 40 ° and installed so that the air outlet 7 is lowered, the airflow can be blown downward to about 15 °, and the bed headboard (bed It can be installed on a board on the head to send airflow to the user at bedtime. In the embodiment, the leg opening degree can be regulated about every 40 °, but the angle can be appropriately determined by design. Also, the angle adjustment need not be equiangular.

  Next, the suction port 6 will be described. The suction port 6 is formed at the lower end of the back case 2 as shown in FIGS. A recess-shaped storage portion 2f for storing the legs 3 is formed at the lower end portion and both end portions of the back case 2b. Thereby, the leg 3 comes to follow an outer wall surface so that the external appearance of the back case 2b may not be impaired when accommodated.

  In addition, the back case 2b has a lid 2g so that the isolation chambers 22b and 22c are opened (exposed) at portions facing the isolation chambers 22b and 22c described above so that the battery 19 and the ion generator 18 can be replaced. Is detachably provided. A gap is formed between the end surface of the leg 3 and the lower end surface of the lid 2g in the state of being stored in the storage portion 2f so as to ensure the airflow A1.

  A suction port 6 is formed at the lower end of the back case 2b so as to correspond to the gap. Therefore, even if the legs 3 are stored in the storage portion 2f (see FIG. 5), the air inlet A6 is always secured without closing the suction port 6.

  The leg 3 is kept at a predetermined distance from both lower ends of the back case 2b and the lid 2g in a closed state (stored state), and a gap is formed between the leg 3 and both. The gap is provided over the full width of the leg 3, and the opening area does not change whether the leg 3 is open or closed.

  As described above, the blowing performance of the blower fan 17 is ensured both when the leg 3 is used and when it is not used.

  Here, the said suction inlet 6 is provided in the lower end part corresponding to the accommodating part 2f of the back case 2b. Therefore, as shown in FIG. 5, the suction port 6 is formed in a portion that is recessed by one step with respect to the installation surface of the back case 2b. Therefore, even if the lid 2g is placed on the installation surface as shown in FIG. 5, the suction port 6 is not blocked. Therefore, the airflow A1 at the suction port 6 can always be secured.

Next, the ion generator 18 mounted on the portable blower of the present invention will be described. The ion generator 18 arranged in the isolation chamber 22 b has a plurality of electrodes (not shown) facing the air passage 8. The ion generator 18 has a built-in high-voltage electricity generation circuit and operates by receiving power supply from the battery 19. A high voltage consisting of an AC waveform or an impulse waveform is applied to the electrodes by the high voltage electricity generation circuit. The ion generator 18 has a plurality of discharge electrodes, a positive voltage is applied to one electrode, and ions generated by ionization combine with moisture in the air to form a positive electrode mainly composed of H ⁺ (H ₂ O) m. Cluster ions are formed. A negative voltage is applied to the other electrodes, and ions generated by ionization are combined with moisture in the air to form negative cluster ions mainly composed of O ₂ ^— (H ₂ O) n. Here, m and n are arbitrary natural numbers.

Positive ions H ⁺ (H ₂ O) m and negative ions O ₂ ⁻ (H ₂ O) n are simultaneously sent in the air to aggregate and surround them on the surface of airborne bacteria and odor components. Then, as shown in the formulas (1) to (3), [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide), which are active species, are generated on the surface of floating bacteria and odor components. Destroy them. Here, m ′ and n ′ are arbitrary natural numbers.

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 the portable air blower 1 having the above-described configuration, FIG. 7 shows a state 1 in which the portable air blower 1 is used on a desk. When the leg 3 is opened at a desired angle and placed on the installation surface of the table, the housing 2 is erected on the table by the support of the leg 3. When the power switch 5 is turned on, the blower fan 17 and the ion generator 18 are driven. As the blower fan 17 is driven, outside air flows into the air passage 8 through the suction port 6 as shown by an arrow A1 (see FIG. 5). At this time, dust contained in the outside air is collected by the filter.

  The air that has passed through the blower fan 17 and passed through the air passage 8 flows through the air passage 8 as indicated by an arrow A2 (see FIG. 5), and includes ions generated by the ion generator 18. And as shown by arrow A3 (refer FIG. 5), the airflow containing a positive ion and a negative ion is sent toward the upper user's head etc. from the blower outlet 7. FIG. Thereby, while being able to obtain coolness easily outdoors or indoors, disinfection around a user and odor removal can be performed.

  8 and 9 show other use states. In FIG. 8, with the legs 3 opened at the maximum angle, the back surface of the housing 2 is brought close to the desk so that the airflow direction is slightly upward from the horizontal. It can be used at the bedside at bedtime. In FIG. 9, the air outlet 7 is brought close to the desk with the leg 3 opened by about 40 °. By doing so, a downward airflow can be obtained. When the portable air blower 1 of the present invention is installed on a headboard or a shelf provided on the headboard (generally called a palace) when sleeping on a bed, or on a nearby shelf during work in a study or the like Is assumed. An air outlet 7 is formed in a space opposite to the space, that is, the front surface side of the housing 2 with respect to the space in which the legs 3 rotate as viewed from the center line in the thickness direction of the housing 2, that is, the back surface side of the housing 2. Thus, such an installation method and a usage method are made possible.

  As a matter of course, it is also possible to place the back of the housing 2 in direct contact with the desk with the legs 3 stored. In this case, the blown airflow is sent out in a substantially horizontal direction.

  Further, in this embodiment, the leg 3 is shaped like a U and is pivotally supported on both side surfaces of the housing 2 so that the ion generator 18 and the battery 19 are housed inside the housing inside. The shape of the leg can be changed by changing the shape of the battery.

  FIG. 10 shows another embodiment of the leg. The leg 30 in this embodiment is provided with a pivotal support structure in the central portion of the housing 2 and has a T-shape. The legs 30 are housed in a recessed storage portion formed in a lid 2g that is detachably provided on the back case 2b. As shown in FIG. 11, the leg 30 has a T-shape by providing a mounting portion for installation at one end of a linear leg main body 30 c. A gear 30a is provided at the other end of the leg main body 30c to arbitrarily secure an opening / closing angle. The gear 30a is rotatably supported in the same manner as the leg 3, and the rotation angle is similarly restricted so as to ensure an arbitrary opening / closing angle.

  In addition, the leg 30 can be configured as an L-shaped leg by providing a mounting portion projecting in one direction at one end of the leg main body 30c without having a T shape.

  The portable blower 1 of the present invention can be carried by being suspended from the neck by using a neck strap. The neck strap is used by being tied to a strap attaching portion 2h provided on the back case 2b which is the back surface of the housing 2. In a state where the neck strap is used, the length of the neck strap is set so that the portable blower 1 is positioned around the upper abdomen from the user's chest. Although it is self-evident, the portable blower 1 at this time is in a posture in which the air outlet 7 is directed almost directly above. When the power switch 5 is turned on while the portable blower 1 is suspended from the user's neck or held, the outside air is guided to the suction port 6 through the gap between the user and the housing 2. . Then, an air flow containing ions is sent upward from the blowout port 7. When walking or sitting, the position of the person's face is slightly forward compared to the position of the person's chest, so it is advantageous that the air outlets 7 are biased to the front of the housing 2. . Thereby, while carrying around the portable air blower 1, coolness can be obtained, and sterilization and odor removal around the user can be performed by the action of positive and negative ions.

  In addition, a shutter 7a (see FIG. 5) that operates in conjunction with the operation switch 5 is provided at the air outlet 7 so that foreign matter does not enter. When the portable blower 1 is used over the neck, it is predicted that the air outlet 7 faces upward. Therefore, when a user eats and drinks, food fragments and beverages may spill out and fall into the outlet 7 unfortunately. This is to prevent such unforeseen events.

  The shutter 7a will be further described with reference to FIG. The operation switch 5 is provided with a protrusion on the back surface that penetrates the back case 2b. By operating this arm (not shown) of the shutter 7a, the protrusion 7 moves the position of the shutter 7a toward the back case 2b. . When blowing, the shutter 7a moves to the front of the isolation chamber 22b provided in the back case 2b so as not to block ventilation.

  In the above embodiment, only the negative ions may be emitted by the ion generator 18. Thereby, a user's relaxation effect can be acquired.

  According to the present invention, it can be used for a portable blower or a portable fragrance device provided with a blower fan in a portable casing.

DESCRIPTION OF SYMBOLS 1 Portable air blower 2 Case 2a Front case 2b Rear case 2c Side cover 2g Lid 3,30 Leg 4 Display part 5 Power switch 6 Suction port 7 Outlet 8 Air passage 17 Blower fan 18 Ion generator 19 Battery 25 Gap

Claims (3)

In a portable air blower comprising a blower fan and a housing that houses the blower fan, and having a suction port that sucks air into the housing and a blower port that sends out the sucked air,
Legs that allow for desktop installation;
A storage section for storing the legs ,
Before Kiashi, said being rotatably supported in two positions with different housing and is rotatable through an angle of at least 160 degrees from the housed state to the storage unit,
Further comprising a holding portion for holding the state in which the rotation from the angle of each being restricted at a position rotating the legs in a plurality of angles,
The outlet is configured to send air in a direction opposite to the storage portion,
When the holding unit holds the leg at a position where the leg is rotated by a predetermined angle from the housed state, and the leg is installed on the desk by the leg, the blowing direction of the air blown out from the outlet is set. portable blower according to claim tare Rukoto it possible to direct the desk surface. The leg, even pulled out from the accommodating part, even when housed in the housing portion, to claim 1, characterized in that it is arranged so as not to block the inlet The portable air blower described.   The said leg is arrange | positioned so that the opening area of the said suction inlet may not be changed even if it is the state pulled out from the said accommodating part, and the state accommodated in the said accommodating part. The portable air blower according to 1 or 2.