Air cleaner

Abstract

To provide an air cleaner capable of changing a blowing-out direction while suppressing an increase in air course resistance in order to efficiently spread blown-out air to an indoor side.SOLUTION: An air cleaner includes: a casing 10 in which a suction port 15 and a blowout port 14 are formed; air blowing means 19 for generating an air current leading from the suction port 15 to the blowout port 14; an air cleaning filter 18 for cleaning air sucked from the suction port 15 into the casing 10 by the air blowing means 19; and a direction drive section 17 that changes a direction in which the air cleaned by the air cleaning filter 18 is blown out from the blowout port 14 by rotating a posture of the casing 10 in an elevation angle direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to an air purifier. [Background technology]

[0002] Air purifiers that remove dust particles, pollen, house dust, etc. suspended in the air are known. In addition, as air purifiers that control the air environment, there are those with a humidifying function that adjusts the humidity of the air and those with a dehumidifying function. Furthermore, there are those that spray active ingredients such as ions or microscopic disinfectants.

[0003] Such air purifiers can control the humidity of the indoor air and purify the air by sucking in indoor air and blowing out air whose humidity has been controlled by a humidifying or dehumidifying function, or air that has been purified by the air purifier.

[0004] The direction in which the purified air is blown out is changed by swinging louvers provided on the main body of the air purifier. For example, the air conditioner disclosed in Patent Document 1 aims to efficiently spread the blown air throughout the room, and the blowing direction can be set in a number of directions (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-219155 A Summary of the Invention [Problem to be solved by the invention]

[0006] Generally, in order to purify indoor air more quickly, there is a method of increasing the amount of air blown out from an air purifier to improve the efficiency of air circulation.

[0007] However, as mentioned above, the method of increasing the amount of blown air increases the resistance of the air passage caused by the louvers, making it difficult to blow air efficiently. Furthermore, the resistance of the air passage caused by the louvers increases power consumption and increases noise during operation.

[0008] An object of the present disclosure is to provide an air purifier that can change the blowing direction while suppressing an increase in air path resistance in order to efficiently spread the blown air throughout a room. [Means for solving the problem]

[0009] The air purifier of the present disclosure comprises a housing in which an intake port and an exhaust port are formed, a blowing means for generating an airflow from the intake port to the exhaust port, an air purification filter for purifying the air sucked into the housing from the intake port by the blowing means, and a directional drive unit for changing the direction in which the air purified by the air purification filter is blown out from the exhaust port by rotating the attitude of the housing in an elevation angle direction.

[0010] In addition, the air purifier of the present disclosure includes a housing in which an intake port and an exhaust port are formed, a blowing means for generating an airflow from the intake port to the exhaust port, an air purification filter for purifying the air sucked into the housing from the intake port by the blowing means, and a directional drive unit for changing the direction in which the air purified by the air purification filter is blown out from the exhaust port by rotating the attitude of the blowing means in the elevation angle direction. Effect of the Invention

[0011] According to the air purifier of the present disclosure, the air blowing direction can be changed to the elevation angle direction while suppressing an increase in airflow resistance. [Brief description of the drawings]

[0012] [Figure 1] 1 is a block diagram showing a schematic configuration of an air purifier according to a first embodiment. [Diagram 2]FIG. 1 is a perspective view of an air purifier according to a first embodiment. [Diagram 3] FIG. 1 is a front view of an air purifier according to a first embodiment. [Figure 4] 1 is a cross-sectional view of an air purifier according to a first embodiment. [Diagram 5] FIG. 2 is a diagram illustrating the configuration of a blower of the air purifier according to the first embodiment and a surrounding air passage. [Figure 6] FIG. 2 is a side view showing the posture of the housing of the air purifier according to the first embodiment during operation. [Figure 7] FIG. 11 is a block diagram showing a schematic configuration of an air purifier according to a second embodiment. [Figure 8] FIG. 11 is a perspective view of an air purifier according to a second embodiment. [Figure 9] FIG. 11 is a cross-sectional view of an air purifier according to a second embodiment. [Figure 10] FIG. 11 is a cross-sectional view illustrating the configuration of a blower of an air purifier according to a second embodiment and an air passage in its vicinity. [Figure 11] FIG. 11 is a side view of a blower of the air purifier according to embodiment 2. [Figure 12] FIG. 1 is a block diagram showing a schematic configuration of an air purifier according to a first reference example. [Figure 13] FIG. 2 is a perspective view of an air purifier according to a first reference example. [Figure 14] FIG. 2 is a cross-sectional view of an air purifier according to a first reference example. [Figure 15] FIG. 2 is a cross-sectional view illustrating the configuration of a blower of the air purifier according to Reference Example 1 and a surrounding air passage. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment will be described with reference to the drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals, and duplicated explanations will be simplified or omitted.

[0014] [Embodiment 1] Fig. 1 is a block diagram showing a schematic configuration of air purifier 101 according to embodiment 1 of the present disclosure. Fig. 2 is a perspective view of air purifier 101. Fig. 3 is a front view of air purifier 101. Fig. 4 is a cross-sectional view of air purifier 101. Fig. 5 is a diagram illustrating the configuration of blower 19 of air purifier 101 and its surrounding air passage. Fig. 6 is a side view showing the attitude of housing 10 during operation of the air purifier according to embodiment 1.

[0015] In Fig. 2, the side of a front case 12 of air purifier 101, which will be described later, is defined as the front direction (front direction), and the side of a rear case 13 of air purifier 101, which will be described later, is defined as the rear direction (rear direction). As shown in Figs. 2 to 4 and 6, the direction perpendicular to floor surface 200 is defined as the up-down direction. Furthermore, when looking at air purifier 101 from the front direction, the left-right directions are defined as the left direction and the right direction, respectively.

[0016] The air purifier 101 may be, for example, an air purifier with a humidifying function or a dehumidifying function. The humidifying function is a function of adding moisture to the air that has been sucked into the inside of the air purifier and purified, and blowing it out to the outside of the air purifier, and the dehumidifying function is a function of purifying the air sucked into the inside of the air purifier and blowing the dried air from which the moisture contained in the air has been removed out to the outside of the air purifier.

[0017] The air purifier 101 is installed, for example, on a floor surface 200 indoors. The indoor space is the inside of a room in which the air purifier 101 is installed. As shown in FIG. 1, the air purifier 101 includes an operation unit 16, a blower 19, a direction drive unit 17, and a drive control unit 20.

[0018] The housing 10 is an exterior member of the air purifier 101. As shown in FIG.

[0019] The rear case 13 is a box-shaped member having an internal space and is formed, for example, from sheet metal or synthetic resin, but is not limited to these. A front panel 11 is detachably attached to the front opening of the front case 12.

[0020] As shown in Fig. 4, an intake port 15 is formed on a side surface between the front panel 11 and the front case 12 of the housing 10, and an outlet port 14 is formed on the top surface of the rear case 13. Air (airflow F0) sucked in from the intake port 15 is blown out as an airflow F3 from the outlet port 14. The outlet port 14 is an opening formed on the top surface of the rear case 13. Note that an external air passage 13a, which will be described later, is omitted in Fig. 4.

[0021] As shown in FIG. 2, an operation unit 16 is provided on the upper surface of the front case 12. As shown in FIG. 4, an air purifying filter 18 is disposed inside the front case 12 and at the opening on the back surface of the front panel 11. The air purifying filter 18 purifies the air sucked into the housing 10 from the intake port 15. In this case, the air (air flow F0) sucked into the housing 10 from the intake port 15 formed on the side surface between the front panel 11 and the front case 12 passes through the air purifying filter 18. The air purifying filter 18 is a filter that collects foreign matter such as fine dust and dirt. Examples of the air purifying filter 18 include a HEPA filter (High Efficiency Particulate Air Filter) made of nonwoven fabric formed into a paper-like material and a deodorizing filter containing activated carbon, but are not limited thereto.

[0022] 5, blower 19, which is an example of a blowing means for generating an airflow from suction port 15 to outlet port 14, includes fan 19a, fan case 19b, and fan motor 19c. Fan case 19b includes fan suction port 19b1, fan outlet port 19b2, and fan air passage 19b3 that extends from fan suction port 19b1 to fan outlet port 19b2. Fan 19a here is a fan that discharges air in a centrifugal direction.

[0023] Fan 19a is rotatably disposed inside fan case 19b. Fan 19a is attached to an output shaft 19c1 of fan motor 19c. Fan motor 19c is fixed to the outer wall of fan case 19b, and fan 19a rotates when fan motor 19c is driven to rotate.

[0024] As the fan 19a rotates, air inside the housing 10 is sucked in from the central portion of the fan case 19b, which is the fan intake port 19b1 (airflow F1), and an airflow toward the periphery is generated. The air of the airflow F1 is sucked into the housing 10 from the intake port 15, passes through the air cleaning filter 18, and reaches the fan intake port 19b1. Then, the air is blown out of the fan case 19b from the fan outlet port 19b2 (airflow F2). Note that a turbofan or a high-pressure axial fan may be used as the fan 19a.

[0025] As shown in FIG. 5, the rear case 13 has an external airflow passage 13a that is connected from the fan outlet 19b2 of the fan case 19b to the outlet 14 of the rear case 13. The external airflow passage 13a does not have a configuration for changing the direction of the airflow F2 blown out from the fan outlet 19b2. The outlet 14 also does not have a louver for changing the direction of the airflow F3 blown out from the outlet 14 to the outside of the rear case 13. Therefore, the direction of the airflow F2 blown out from the fan outlet 19b2 and the direction of the airflow F3 blown out from the outlet 14 to the outside of the rear case 13 are the same. Thus, the external airflow passage 13a and the outlet 14 do not have a configuration for increasing the airflow resistance against the airflow F2 blown out from the blower 19.

[0026] The drive control unit 20 is provided inside the housing 10 and controls the operation of each part of the air purifier 101. The drive control unit 20 is configured by a control board and is disposed, for example, directly below the operation unit 16. As shown in Fig. 1, the drive control unit 20 generates a control signal according to the user's operation content accepted by the operation unit 16, and controls the operation of each part by the generated control signal. The drive control unit 20 controls the rotation drive unit 17b of the direction drive unit 17 described later.

[0027] The drive control unit 20 may change at least one of the air blowing direction and the air blowing strength in response to a user specification. This allows the user to change at least one of the air blowing direction and the air blowing strength in response to the size and shape of the room in which the air purifier 101 is installed. The specification by the user refers to the content of the user's operation accepted by the operation unit 16. The air blowing direction refers to the direction in which the air is blown out from the air outlet 14. The air blowing strength refers to the strength of the air generated by the blower 19 blown out from the air outlet 14.

[0028] The arrows in Fig. 4 indicate the air flow in the air purifier 101. That is, in the air purifier 101, as the blower 19 is driven, air is taken in as an airflow F0 from the intake port 15, and the air passes through the air purification filter 18. The air that has passed through the air purification filter 18 is sucked into the blower 19 by the fan 19a as an airflow F1, and the air passes through the fan airflow path and is blown out from the outlet 14 as an airflow F3.

[0029] The air purifier 101 is configured to purify the air throughout the room efficiently by blowing air through the air outlet 14. The fan is configured so that the air blown out from the fan is blown out obliquely upward.

[0030] The configuration of the direction drive unit 17 will be described with reference to FIG. 3. The direction drive unit 17 is supported with the bottom surface 10a of the housing 10 separated from the floor surface 200, and changes the direction of the air blown out from the air outlet 14 by rotating the attitude of the housing 10 in the elevation angle direction. The direction drive unit 17 has a support part 17a that is key-shaped with an opening at the top when viewed from the front. The bottom surface of the support part 17a contacts the floor surface 200 and is supported by the floor surface 200. A drive shaft 17c is provided near the upper end of the support part 17a, and the drive shaft 17c rotatably supports the side surface of the rear case 13 of the housing 10. In other words, the housing 10 is supported with the bottom part separated from the floor surface 200.

[0031] The rotary drive unit 17b is composed of a motor, and the rotational force of the rotary drive unit 17b drives the housing 10 to rotate around the drive shaft 17c via the drive shaft 17c. This drives the housing 10 to rotate around the drive shaft 17c. This rotation of the housing 10 supports the housing 10 with its bottom separated from the floor surface 200 at a height where the bottom surface of the housing 10 does not interfere with the upper surface of the support unit 17a. The rotation angle of the rotary drive unit 17b is controlled by the drive control unit 20, and the attitude of the entire housing 10 can be changed and maintained. As a result, the direction of the air blown out from the air outlet 14 can be adjusted in the elevation angle direction.

[0032] It is preferable that the axis of the drive shaft 17c is set to pass through the center of gravity G1 of the housing 10. This can reduce the moment when the housing 10 is rotated around the drive shaft 17c. Although the rotation drive unit 17b is disposed outside the housing 10, the rotation drive unit 17b may be disposed inside the housing 10 and fixed to the housing 10.

[0033] (Operation when purifying air) FIG. 6(a) is a diagram showing the posture of housing 10 when air purifier 101 blows air vertically upward, and FIG. 6(b) is a diagram showing the posture of housing 10 when air purifier 101 blows air diagonally forward above.

[0034] Consider a case where the air purifier 101 is placed so that the rear side of the air purifier 101 is close to the wall side of the room, and the air is blown out from the vertically upward direction of the air purifier 101. In this case, as shown in FIG. 6(b), the direction drive unit 17 rotates the housing 10 so that the air is blown out from the air outlet 14 of the air purifier 101 in an upward diagonal forward direction. That is, the direction drive unit 17 rotates the entire housing 10 so that the housing 10 is tilted forward and the air blown out from the air outlet 14 is blown out in an upward diagonal forward direction. In this way, by rotating the attitude of the air purifier 101, the direction of the purified air blown out from the air outlet can be changed in the elevation angle direction. At this time, since there is no configuration that increases the airway resistance in the airway from the blowing means to the air outlet, the direction of the purified air blown out from the housing can be changed in the elevation angle direction while suppressing the increase in the airway resistance.

[0035] Further, the direction driving unit 17 is configured to be able to set the blowing direction of the air blown out from the air outlet 14 to a plurality of elevation angles. For example, the drive control unit 20 controls the direction driving unit 17 to maintain the attitude of the housing 10 so as to maintain a state in which air is blown out in each of the plurality of blowing directions.

[0036] Drive control unit 20 generates a control signal according to the user's operation content accepted by operation unit 16, and controls rotation control unit 17b of direction drive unit 17 using the generated control signal to rotate housing 10 around drive shaft 17c and change the attitude of housing 10 to the elevation angle direction. In other words, the air blowing direction is changed to the elevation angle direction by the user operating operation unit 16.

[0037] The operation unit 16 is provided with, for example, an increase button (not shown) for rotating the attitude of the housing 10 in a direction to increase the elevation angle and a decrease button (not shown) for rotating the attitude of the housing 10 in a direction to decrease the elevation angle, and the housing 10 rotates while the increase button or decrease button is pressed, and when the button is released from the press, the rotation stops and the attitude of the housing 10 is maintained. With this configuration, the user can easily rotate the attitude of the housing 10. Also, the direction of the air blown out from the air purifier 101 can be easily adjusted so that the air blown out spreads efficiently throughout the room.

[0038] In addition, a posture memory button (not shown) is provided on the operation unit 16, and when the posture memory button is pressed while the increase button or decrease button is not pressed, that is, while the posture of the housing 10 is maintained, angle information in the elevation angle direction corresponding to the currently maintained posture is stored in a memory unit (not shown) of the drive control unit 20. Then, for example, when the increase button or decrease button is pressed while pressing the memory button, the angle information stored in the memory unit is called, and the housing 10 can be rotated to that angle. A plurality of angle information may be stored in the memory unit. By configuring in this way, a plurality of angles in the elevation angle direction of the housing 10 can be set. For example, when the air purifier 101 is used in room A or room B, the posture of the housing 10 is set to an elevation angle A in room A and stored in the memory unit, and set to an elevation angle B in room B and stored in the memory unit. By calling up the angle information corresponding to the room to be used from the memory unit, the direction of the wind blown out from the air purifier 101 can be easily set. Similarly, when air purifier 101 is placed in a first position in a room, or when it is placed and used in a second position different from the first position, the attitude of housing 10 is set to elevation angle A in the first position and stored in the memory unit, and set to elevation angle B in the second position and stored in the memory unit. The direction of the air blown out from air purifier 101 can be easily set by calling up angle information corresponding to the position of the room in which it is used from the memory unit.

[0039] Furthermore, drive control unit 20 generates a control signal according to the operation content of the user received by operation unit 16, and controls blower 19 using the generated control signal. In other words, a plurality of wind blowing strengths of blower 19 are set by the user operating operation unit 16.

[0040] Therefore, the air purifier 101 can set the airflow strength to a plurality of values. As a result, when the air purifier 101 is installed indoors, the air can be efficiently distributed by blowing air from the air outlet 14, which has a small airflow resistance.

[0041] In this way, the air purifier 101 can set the air blowing direction to a plurality of elevation angles. As a result, when the air purifier 101 is installed indoors, it can distribute air throughout the room more efficiently than when the air purifier 101 blows air vertically upward.

[0042] Furthermore, the drive control unit 20 can control the direction drive unit 17 so that the wind blowing direction can be switched between a plurality of elevation angles, for example, direction A, direction B, and direction C. Specifically, for example, the drive control unit 20 switches the wind blowing direction from the front direction (elevation angle 0°) to direction A (elevation angle 45°), direction B (elevation angle 60°), and direction C (elevation angle 80°).

[0043] In this case, the degree of air pollution in the upper, middle, and lower parts of the room may be measured in advance, the dirty air layer may be found, and the air blowing direction may be determined. For example, if the air in the upper part of the room is very dirty, the air is set to blow in direction C, which has a large elevation angle, and if the air in the lower part of the room is very dirty, the air is set to blow in direction C, which has a small elevation angle. By using the drive control unit 20 to blow air toward the dirty air layer, it is possible to focus on cleaning and improve the indoor air environment.

[0044] An air pollution sensor (not shown) that detects the level of air pollution may also be attached to the air purifier 101. The air pollution sensor is connected to the drive control unit 20. The drive control unit 20 also includes a memory unit (not shown). The drive control unit 20 controls the rotation drive unit 17b so that the drive control unit 20 switches the air blowing direction between directions A, B, and C, and maintains airflow in each of the directions for one minute, and the memory unit of the drive control unit 20 stores the detection results of the air pollution sensor and maintains the attitude of the housing 10 in the air blowing direction with the highest level of air pollution.

[0045] The air purifier 101 may also be provided with a distance sensor (not shown) for measuring the distance to the object. The distance sensor is integrally provided with an infrared transmission unit (not shown) and a reception unit (not shown), and the infrared rays transmitted from the transmission unit are detected by the reception unit when the infrared rays hit the object and are reflected, and the distance between the distance sensor and the object is detected from the difference between the transmission time at the infrared transmission unit and the reception time at the reception unit. Before air is blown out from the housing 10 of the air purifier 101, the infrared transmission direction is changed two-dimensionally and discretely, and the storage unit stores the distance between the distance sensor and the object (here, a wall or furniture in the room, etc.) in each transmission direction. It is determined that an object such as furniture exists in the infrared transmission direction where the distance stored in the storage unit is small. It is also determined that an object such as furniture does not exist in the infrared transmission direction where the distance stored in the storage unit is large, and the wind blown out from the housing 10 reaches a long distance. In this way, the distance sensor detects the structure of the room and the presence or absence of furniture, and the information obtained by the distance sensor is processed by drive control unit 20 to control rotation drive unit 17b of direction drive unit 17. Since the attitude of the entire housing 10 is tilted to blow out air, air can be blown out with less resistance to the air path from fan outlet 19b2 of blower 19 to outlet 14 of housing 10, and air can be spread throughout the room more efficiently.

[0046] Also, for example, the drive control unit 20 may be configured to automatically switch the rotation angle of the rotation drive unit 17b of the direction drive unit 17. For example, a human sensor (not shown) that detects the presence or absence of a person in the room in which the air purifier 101 is placed may be further provided. The human sensor is connected to the drive control unit 20. When the human sensor does not detect the presence of a person in the room, dust in the lower layer part where dust tends to accumulate can be collected by tilting the housing 10 of the air purifier 101 in a direction with a low elevation angle (for example, an elevation angle of 0° to 45°) to target the lower layer part where dust tends to accumulate. When the human sensor detects the presence of a person in the room, dust is stirred up by the movement of the person, so that the air purifier 101 can efficiently collect the stirred up dust by blowing air in a direction with a high elevation angle (for example, an elevation angle of 80° to 90°).

[0047] Also, the drive control unit 20 may be configured to automatically switch the rotation angle of the rotation drive unit 17b of the direction drive unit 17, and a timer (not shown) for measuring time may be provided instead of the human sensor. The timer is connected to the drive control unit 20. The timer can be set to a time period when there is a person in the room where the air purifier 101 is placed, or a time period when there is no person. When the timer is set to a time period when there is no person in the room, dust in the lower layer where dust tends to accumulate can be efficiently collected by tilting the housing 10 of the air purifier 101 in a direction with a low elevation angle (for example, an elevation angle of 0° to 45°) to target the lower layer. When the timer is set to a time period when there is a person in the room, dust is stirred up by the movement of the person, so that the stirred up dust can be efficiently collected by blowing air from the air purifier 101 in a direction with a high elevation angle (for example, an elevation angle of 80° to 90°).

[0048] Furthermore, the air outlet 14 may have a louver (not shown) capable of changing the airflow direction to the left and right. The position of the louver is changed to the left and right by a louver drive unit (not shown) driven by a louver motor (not shown). The drive circuit (not shown) of the louver motor is connected to the drive control unit 20. The drive control unit 20 controls the drive circuit of the louver motor to change the position of the louver to the left and right, thereby controlling the airflow direction. When the airflow direction is changed to the left and right by the louver, the airflow resistance due to the louver increases, but the combination of the direction drive unit 17 and the louver can blow air in the front and back (elevation angle) directions by changing the airflow direction by the direction drive unit 17 and the left and right directions by changing the airflow direction by the louver.

[0049] Thus, the air purifier of embodiment 1 includes a housing in which an intake port and an exhaust port are formed, a blowing means for generating an airflow from the intake port to the exhaust port, an air purification filter for purifying the air sucked into the housing from the intake port by the blowing means, and a directional drive unit for changing the direction in which the air purified by the air purification filter is blown out of the exhaust port by rotating the attitude of the housing in the elevation angle direction, so that the direction of the purified air blown out of the housing can be changed in the elevation angle direction while suppressing an increase in air path resistance.

[0050] In addition, since the device is equipped with an operation unit that receives instructions to change the posture of the housing, and a drive control unit that controls the direction drive unit based on the change instructions received by the operation unit, the direction of the purified air blown out from the housing can be easily adjusted.

[0051] In addition, the directional drive unit maintains the orientation of the housing at multiple elevation angles, so that the air blown out can be set to efficiently spread throughout the room according to the room in which the air purifier is used or the position of the room in which the air purifier is installed.

[0052] In addition, the directional drive unit is equipped with a support unit whose upper part supports both sides of the housing and supports the housing with the top surface of the bottom part spaced apart from the bottom of the housing, and a rotation drive unit which has a drive shaft provided near the upper end of the support unit and drives the housing to rotate around the drive shaft.Therefore, the housing can be rotated without interfering with the support unit, and the direction of the purified air blown out from the housing can be changed in the elevation angle direction while suppressing an increase in air path resistance.

[0053] Furthermore, since the axis of the drive shaft is configured to pass through the center of gravity of the housing, the moment generated when the housing is rotated around the drive shaft can be reduced.

[0054] [Embodiment 2] FIG. 7 is a block diagram showing a schematic configuration of an air purifier 103 according to embodiment 2 of the present disclosure. FIG. 8 is a perspective view of the air purifier 103 of FIG. 7. FIG. 9 is a cross-sectional view of the air purifier 103 of FIG. 8. FIG. 10 is a cross-sectional view illustrating the configuration of the blower 59 of the air purifier 103 of FIG. 8 and the surrounding air passage. FIG. 11 is a side view of the blower 59 of the air purifier 103 of FIG. 8, and is a view of the fan case 59b of the blower 59 of the air purifier 103 as viewed from the right side. In FIG. 8, the front case 52 side of the air purifier 103 is the right direction, and the rear case 53 side of the air purifier 103 is the left direction.

[0055] The air purifier 103 may be, for example, an air purifier with a humidifying function or a dehumidifying function. The humidifying function is a function of adding moisture to the purified air drawn into the air purifier and blowing it out to the outside of the air purifier, and the dehumidifying function is a function of purifying the air drawn into the air purifier and blowing the dried air from which the moisture contained in the air has been removed out to the outside of the air purifier.

[0056] Air purifier 103 is installed, for example, on floor surface 200 indoors. The indoor space refers to the inside of a room in which air purifier 103 is installed. As shown in FIG. 7 , air purifier 103 includes an operation unit 56, a blower 59, a direction drive unit 57, and a drive control unit 60.

[0057] Housing 50 is an exterior member of air purifier 103. As shown in Fig. 9, housing 50 includes right panel 51, right case 52, left case 53, and direction drive unit 57. As will be described later, direction drive unit 57 is a mechanism that rotates entire blower 59 around output shaft 59c1 of fan motor 59c.

[0058] The left case 53 is a box-shaped member having an internal space and is formed, for example, using sheet metal or synthetic resin, but is not limited to these. A right panel 51 is detachably attached to the opening on the right side of the right case 52.

[0059] 9, an intake port 55 is formed between the right panel 51 and the right case 52 of the housing 50, and an outlet port 54 is formed on the upper surface of the left case 53. Air (airflow F0) sucked in through the intake port 55 is blown out from the outlet port 54.

[0060] As shown in FIG. 9, an operation unit 56 is provided on the upper surface of the right case 52. An air purifying filter 58 is disposed inside the right case 52 and at the opening on the back surface of the right panel 51. The air purifying filter 58 purifies the air sucked into the housing 50 from the intake port 55. In this case, the air (airflow F0) sucked into the housing 50 from the intake port 55 formed between the right panel 51 and the right case 52 passes through the air purifying filter 58. The air purifying filter 58 is a filter that collects foreign matter such as fine dust and dirt. Examples of the air purifying filter 58 include a HEPA filter (High Efficiency Particulate Air Filter) made of nonwoven fabric formed into a paper-like material and a deodorizing filter containing activated carbon, but are not limited thereto.

[0061] As shown in Fig. 9, inside the left case 53 constituting the housing 50, a blower 59 is provided as an example of a blowing means for generating an airflow from the suction port 55 to the outlet port 54. As shown in Fig. 10, the blower 59 is provided with a fan 59a, a fan case 59b, and a fan motor 59c. The fan case 59b is provided with a fan suction port 59b1, a fan outlet port 59b2, and a fan air passage 59b3 that runs from the fan suction port 59b1 through the fan outlet port 59b2 to the downstream end of the external air passage 53a. The fan 59a here is a fan that exhausts air in a centrifugal direction.

[0062] Fan 59a is rotatably disposed inside fan case 59b. Fan 59a is attached to an output shaft 59c1 of fan motor 59c. Fan motor 59c is fixed to the outer wall of fan case 59b, and fan 59a rotates when fan motor 59c is driven to rotate.

[0063] As the fan 59a rotates, air inside the housing 50 is sucked in from the central portion of the fan case 59b, which is the fan intake port 59b1 (airflow F1), and an airflow toward the outer periphery is generated. The air of the airflow F1 is sucked into the housing 50 from the intake port 55 formed between the front panel 51 and the front case 52, passes through the air cleaning filter 58, and reaches the fan intake port 59b1. The air then passes through the external airflow passage 53a extended from the fan outlet 59b2, and is blown out of the blower 59 from the downstream end of the external airflow passage 53a (airflow F2). Note that a turbofan or a high-pressure axial fan may be used as the fan 59a.

[0064] The drive control unit 60 is provided inside the housing 50 and controls the operation of each part of the air purifier 103. The drive control unit 60 is configured with a control board and is disposed directly below the operation unit 56. As shown in FIG. 7, the drive control unit 50 generates a control signal according to the user's operation content accepted by the operation unit 56, and controls the operation of each part by the generated control signal. The drive control unit 60 controls the rotation drive unit 59d of the direction drive unit 57.

[0065] The drive control unit 60 may change at least one of the air blowing direction and the air blowing strength in response to a user specification. This allows the user to change at least one of the air blowing direction and the air blowing strength in response to the size of the room in which the air purifier 103 is installed. The user specification refers to the content of the user's operation accepted by the operation unit 56. The air blowing direction refers to the direction in which the air is blown out from the air outlet 54. The air blowing strength refers to the strength of the air generated by the blower 59 blown out from the air outlet 54.

[0066] 9 indicate the flow of air in air purifier 103. That is, in air purifier 103, air is taken in as airflow F0 from intake port 55 by driving blower 59, and the air passes through air purification filter 58. The air that has passed through air purification filter 58 is sucked into blower 59 by fan 59a as airflow F1, and is blown out from outlet 54 as airflow F3 via fan airflow path 59b3.

[0067] Air purifier 103 is configured to blow air from air outlet 54 obliquely upward so as to efficiently purify the air throughout the room. The configuration of the direction driver 57 will be described with reference to FIG.

[0068] As an example of the direction drive unit 57, the configuration of the rotation drive unit 59d will be described. The rotation drive unit 59d is composed of a rotation drive motor 59d1, an output shaft 59d2, a drive gear 59d3, and a driven gear 59d4. The fan case 59b, the fan 59a therein, and the entire external delivery path 53a are integrally supported on the outer periphery of the output shaft 59c1 so as to be rotatable around the output shaft 59c1 coaxially with the output shaft 59c1. The rear surface of the fan motor 59c and the surface of the rear case 53 facing the rear surface may be fixed and supported on the outer periphery of the output shaft 59c1. A driven gear 59d4 is formed on the outer periphery of the lower part of the output shaft 59c1 of the fan case 59b. A rotation drive motor 59d1 that rotates the fan case 59b is provided on the outer side of the fan case 59b. The rotary drive motor 59d1 is connected via an output shaft 59d2 to a drive gear 59d3 that meshes with a driven gear 59d4.

[0069] Rotation drive unit 59d provided in air purifier 103 is rotatably supported by output shaft 59c1 on fan case 59b, fan 59a therein, and external air passage 53a as a whole, so that the leeward opening of external air passage 53a rotates around output shaft 59c1. Air blown out from the leeward opening of external air passage 53a reaches outlet 54 and is blown out from outlet 54 to the outside of rear keel 53. The attitude of fan case 59b can be set so that the direction of the air blown out from outlet 54 to the outside of rear keel 53 can be adjusted in the elevation angle direction by rotating the leeward opening of external air passage 53a.

[0070] (Operation when purifying air) Fig. 11(a) is a diagram showing the position of blower 59 when blowing air in a vertical direction of air purifier 103. Fig. 11(b) is a diagram showing the position of blower 59 when blowing air diagonally backward of air purifier 103. Fig. 11(c) is a diagram showing the position of blower 59 when blowing air diagonally forward of air purifier 103.

[0071] Consider a case where the air purifier 103 is placed so that the rear side of the air purifier 103 is close to the wall surface side of the room, and the air purifier 103 blows out from the vertical direction. In this case, as shown in Fig. 11(b) and Fig. 11(c), the direction drive unit 57 rotates the blower 59 in the elevation angle direction so that the air purifier 103 blows out in the elevation angle direction (front-back direction). That is, the direction drive unit 57 tilts the blower 59 in the elevation angle direction, and changes the direction of the air blown out from the outlet 54 to the elevation angle direction. At this time, since there is no configuration that increases the air path resistance in the air path from the blowing means to the outlet, the direction of the purified air blown out from the housing can be changed to the elevation angle direction while suppressing the increase in the air path resistance.

[0072] Further, the direction driving unit 57 is configured to be able to set the blowing direction of the air blown out from the air outlet 54 to a plurality of elevation angles. For example, the drive control unit 60 controls the direction driving unit 57 to maintain the attitude of the blower 59 so that the state in which the air is blown out in each of the plurality of blowing directions continues.

[0073] Drive control unit 60 generates a control signal according to the user's operation content accepted by operation unit 56, and controls rotation drive motor 59d1 of direction drive unit 57 using the generated control signal to rotate fan case 59b of blower 59 around output shaft 59c1 and change the attitude of fan case 59b in the elevation angle direction. In other words, the user operates operation unit 56 to set a plurality of wind blowing directions in the elevation angle direction.

[0074] The operation unit 56 is provided with, for example, an increase button (not shown) for rotating the fan case 59b in a direction to increase the elevation angle and a decrease button (not shown) for rotating the fan case 59b in a direction to decrease the elevation angle, and the fan case 59b rotates while the increase button or decrease button is pressed, and the rotation stops when the button is stopped being pressed, and the attitude of the fan case 59b is maintained. With this configuration, the user can easily rotate the fan case 59b. Also, the direction of the air blown out from the air purifier 101 can be easily adjusted so that the air blown out spreads efficiently throughout the room.

[0075] Therefore, the air purifier 103 can set the air blowing direction to a plurality of directions. As a result, when the air purifier 103 is installed in a room, the air can be efficiently distributed throughout the room by adjusting the direction of the air blown out according to the size of the room, etc. Furthermore, when the air blowing direction is set to one arbitrary direction, the air blown out from the air purifier 103 can be spread throughout the room over a wider range and more quickly than when the air is blown out in a vertical direction. Therefore, the air purifier 103 can efficiently spread the air blown out throughout the room.

[0076] Further, the drive control unit 60 controls the direction drive unit 57 so that the wind blowing direction can be switched among a plurality of directions, namely, direction A, direction B, and direction C. Specifically, for example, the drive control unit 60 switches the wind blowing direction among direction A, direction B, and direction C.

[0077] In this case, for example, when the drive control unit 60 switches the air blowing direction between directions A, B, and C for one minute each, it measures the degree of air pollution in the right side, center, and left side of the room, finds the dirty air spots, and determines the air blowing direction. By blowing air toward the dirty air spots with the drive control unit 60, it is possible to focus on cleaning and improve the air environment in the room.

[0078] In addition, a sensor (not shown) is attached to the air purifier 103, and the sensor identifies the room structure and furniture (shelves and lighting), and the information obtained by the sensor is received by the drive control unit 60 to control the direction drive unit 57. By operating the air purifier 103 in a wind direction with less airflow resistance, it is possible to spread the wind throughout the room more efficiently.

[0079] Furthermore, the air outlet 54 may have, as a direction drive unit, for example, a louver (not shown) capable of setting the air blowing direction to any direction, and the drive control unit 60 controls the air blowing direction by changing the inclination of the louver in the front-to-rear direction. When the air blowing direction is changed to the left-to-right direction by the louver, the air path resistance by the louver increases, but by changing the air blowing direction in the front-to-rear (elevation angle) direction by the direction drive unit 57 and in the left-to-right direction by the louver, it is possible to blow air in all directions by combining the direction drive unit 57 and the louver.

[0080] Furthermore, when the drive control unit 60 can automatically switch the direction of airflow, by combining it with the louver, during times when no one is present, the louver can be tilted toward the lowest part to target the lower part where dust tends to accumulate, thereby collecting dust at the lower part. Also, during times when people are present, dust is stirred up by people moving around, so by blowing air vertically through the louver, the stirred up dust can be efficiently collected.

[0081] Thus, the air purifier of the second embodiment includes a housing in which an inlet and an outlet are formed, a blowing means for generating an airflow from the inlet to the outlet, an air cleaning filter for cleaning the air sucked into the housing from the inlet by the blowing means, and a direction driving unit for changing the direction in which the air cleaned by the air cleaning filter is blown out from the outlet by rotating the attitude of the blowing means in the elevation angle direction, so that the direction of the cleaned air blown out from the housing can be changed in the elevation angle direction while suppressing an increase in air path resistance. Furthermore, since the attitude of the blowing means, which is lighter than the housing, is rotated, the configuration of the direction driving unit can be simplified.

[0082] In addition, since the device is equipped with an operation unit that receives instructions to change the posture of the blowing means, and a drive control unit that controls the direction drive unit based on the change instructions received by the operation unit, the direction of the purified air blown out from the housing can be easily adjusted.

[0083] Furthermore, since the direction drive unit maintains the orientation of the blowing means at a plurality of elevation angle directions, it can be set to efficiently spread the blown air throughout the room according to the position of the room in which the air purifier is placed.

[0084] Furthermore, the blowing means includes a fan, a fan case that houses the fan, and a fan motor that drives and rotates the fan, and the fan case has a fan outlet through which air purified by the air purification filter is blown out by the fan, and the direction drive unit changes the direction in which air is blown out from the fan outlet through the outlet by rotating the attitude of the fan case in the elevation angle direction, so that the direction of the purified air blown out of the housing can be changed in the elevation angle direction while suppressing an increase in air path resistance. [Reference example 1] Fig. 12 is a block diagram showing a schematic configuration of an air purifier 102 according to Reference Example 1 of the present disclosure. Fig. 13 is a perspective view of the air purifier 102 of Fig. 12. Fig. 14 is a cross-sectional view of the air purifier of Fig. 13. Fig. 15 is a cross-sectional view illustrating the configuration of the blower 39 of the air purifier 102 and the surrounding air passage. In Fig. 13, the front case 32 side of the air purifier 102 is the front direction (front direction), and the rear case 33 side of the air purifier 102 is the rear direction (rear direction).

[0085] The air purifier 102 may be, for example, an air purifier with a humidifying function or a dehumidifying function. The humidifying function is a function of adding moisture to the purified air drawn into the air purifier and blowing it out to the outside of the air purifier, and the dehumidifying function is a function of purifying the air drawn into the air purifier and blowing the dried air from which the moisture contained in the air has been removed out to the outside of the air purifier.

[0086] The air purifier 102 is installed, for example, on a floor surface 200 inside a room. The indoor space refers to the inside of a room in which the air purifier 102 is installed. As shown in FIG. 12 , the air purifier 102 includes an operation unit 36, a drive control unit 40, and a blower 39.

[0087] The housing 30 is an exterior member of the air purifier 102. As shown in FIG.

[0088] The rear case 33 is a box-shaped member having an internal space and is formed, for example, using sheet metal or synthetic resin, but is not limited to these. A front panel 31 is detachably attached to an opening on the front side of the front case 32.

[0089] 14, by increasing the vertical width of the bottom surface of rear case 33 in the front-to-rear direction, the back surface of blower 39 can be placed parallel to the back surface of rear case 33, and by fixing the back surface of blower 39 to the back surface of rear case 33, it becomes easy to attach blower 39 to rear case 33. Also, by increasing the installation area with respect to floor surface 200, housing 30 sits more firmly and is less likely to tip over.

[0090] As shown in Fig. 14, an intake port 35 is formed between the front panel 31 and the front case 32 of the housing 30, and an outlet port 34 is formed on the upper surface of the rear case 33. Air (airflow F0) sucked in through the intake port 35 is blown out from the outlet port 34. The outlet port 34 is formed in a plane parallel to the axial direction of an output shaft 39c1 of a fan motor 30c, which will be described later. Note that an external air passage 33a, which will be described later, is omitted in Fig. 14.

[0091] As shown in FIG. 14, an operation unit 36 ​​is provided on the upper surface of the front case 32. An air purifying filter 38 is disposed inside the front case 32 and at the opening on the back surface of the front panel 31. The air purifying filter 38 purifies the air sucked into the housing 30 from the suction port 35. In this case, the air (airflow F0) sucked into the housing 30 from the suction port 35 formed between the front panel 31 and the front case 32 passes through the air purifying filter 38. The air purifying filter 38 is a filter that collects foreign matter such as fine dust and dirt. Examples of the air purifying filter 38 include, but are not limited to, a HEPA filter (High Efficiency Particulate Air Filter) made of nonwoven fabric formed into a paper-like material and a deodorizing filter containing activated carbon.

[0092] 14 and 15, blower 39, which is an example of a blowing means for generating an airflow from suction port 35 to outlet port 34, includes fan 39a, fan case 39b, and fan motor 39c. Fan case 39b includes fan suction port 39b1, fan outlet port 39b2, and fan air passage 39b3 that runs from fan suction port 39b1 to fan outlet port 39b2. Fan 39a is a fan that exhausts air in a centrifugal direction.

[0093] Fan 39a is rotatably disposed inside fan case 39b. Fan 39a is attached to an output shaft 39c1 of fan motor 39c. Fan motor 39c is fixed to the outer wall of fan case 39b, and fan 39a rotates when fan motor 39c is driven to rotate.

[0094] As the fan 39a rotates, air inside the housing 10 is sucked in from the central portion of the fan case 39b, which is the fan intake port 39b1 (airflow F1), and an airflow toward the periphery is generated. The air of the airflow F1 is sucked into the housing 10 from the intake port 15 formed between the front panel 11 and the front case 12, passes through the air cleaning filter 18, and reaches the fan intake port 19b1. Then, the air is blown out of the fan case 39b from the fan outlet 39b2 (airflow F2). Note that a turbofan or a high-pressure axial fan may be used as the fan 39a.

[0095] As shown in FIG. 15, the rear case 33 has an external airflow passage 33a that is connected from the fan outlet 39b2 of the fan case 39b to the outlet 34 of the rear case 33. The external airflow passage 33a does not have a configuration for changing the direction of the airflow F2 blown out from the fan outlet 39b2. The outlet 34 also does not have a louver for changing the direction of the airflow F3 blown out from the outlet 34 to the outside of the rear case 33. Therefore, the direction of the airflow F2 blown out from the fan outlet 39b2 and the direction of the airflow F3 blown out from the outlet 34 to the outside of the rear case 13 are the same. Thus, the external airflow passage 33a and the outlet 34 do not have a configuration for increasing the airflow resistance against the airflow F2 blown out from the blower 39.

[0096] In this way, the blower 39, external air passage 33a, and outlet 34 shown in FIG. 15 are configured such that the blower 19, external air passage 13a, and outlet 14 shown in FIG. 5 are tilted overall diagonally forward from vertically upward.

[0097] The drive control unit 40 is provided inside the housing 30, and controls the operation of each part of the air purifier 102. The drive control unit 40 is configured with a control board, and is disposed directly below the operation unit 16. As shown in Fig. 12, the drive control unit 40 generates a control signal according to the user's operation content accepted by the operation unit 36, and controls the operation of each part by the generated control signal.

[0098] The drive control unit 40 may change the strength of the airflow in response to a user specification. This allows the user to change the strength of the airflow in response to the size of the room in which the air purifier 102 is installed. The specification by the user refers to the content of the user's operation accepted by the operation unit 36. The strength of the airflow refers to the strength of the air generated by the blower 39 that is blown out from the air outlet 34.

[0099] 14 indicates the flow of air in the air purifier 102. That is, in the air purifier 102, as the blower 39 is driven, air is taken in as an airflow F0 from the intake port 35, and the air passes through the air purification filter 38. The air that has passed through the air purification filter 38 is sucked into the blower 39 by the fan 39a as an airflow F1, and the air passes through the fan airflow path 39b3 and is blown out from the outlet 34 as an airflow F3.

[0100] The air purifier 102 is configured to blow air from the air outlet 34 obliquely upward so as to efficiently purify the air in the entire room. Here, the blower 39 provided in the air purifier 102 is attached so that the back surface of the blower 39 is parallel to the back surface of the rear case 33. This allows the air blown from the air outlet 34 to be sent in an upward oblique forward direction. Furthermore, the direction of the airflow F2 blown from the fan air outlet 39b2 and the direction of the airflow F3 blown from the air outlet 34 to the outside of the rear case 13 are the same. In this way, the external air blowing path 33a and the air outlet 34 do not have a configuration that increases the airflow resistance against the airflow F2 blown from the blower 39. In other words, the purified air is blown obliquely upward without increasing the airflow resistance.

[0101] (Operation when purifying air) FIG. 14 is a cross-sectional view of air purifier 102, showing a configuration for blowing out air in an obliquely upward direction.

[0102] Consider a case where the air purifier 102 is placed so that the back side of the air purifier 102 is close to the wall surface of the room, and air is blown out from above the housing 30 of the air purifier 102. In this case, as shown in Fig. 14, the blower 39 is tilted forward so that air is blown out from the diagonally front above the air purifier 102. For example, by placing the back side of the blower 39 parallel to the back side of the rear case 33, the blower 39 is tilted so that the air blown out from the air outlet 34 is blown in an oblique direction without tilting the housing 30 forward.

[0103] Drive control unit 40 generates a control signal according to the operation content of the user received by operation unit 36, and controls blower 39 using the generated control signal. In other words, a plurality of wind blowing strengths of blower 39 are set by the user operating operation unit 36.

[0104] In this way, the air purifier 102 can set the wind blowing strength to multiple values. Air drawn in from the intake port 35 is blown out from the outlet port 34. The outlet port 34 is on a surface parallel to the axial direction of the blower 39. This reduces airflow resistance compared to blowing out wind in a vertical direction, ensures maximum air volume, and allows the wind to spread efficiently in the front direction. In other words, by blowing out wind from the outlet port 34 while suppressing an increase in airflow resistance, the wind can be efficiently distributed throughout the room.

[0105] In this way, according to the air purifier of Reference Example 1, the air purified by the air purification filter is blown out diagonally forward from the outlet, thereby efficiently distributing air throughout the room while suppressing an increase in airflow resistance.

[0106] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. The technical scope of the present disclosure also includes embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Furthermore, new technical features can be formed by combining the technical means disclosed in the respective embodiments.

[0107] Various aspects of the present disclosure are summarized below as appendices.

[0108] (Appendix 1) A housing in which an intake port and an exhaust port are formed; A blowing means for generating an air flow from the suction port to the blowing port; an air cleaning filter that cleans the air sucked into the housing through the air intake by the air blowing means; a direction driving unit that changes a direction in which the air purified by the air cleaning filter is blown out from the air outlet by rotating an attitude of the housing in an elevation angle direction; An air purifier equipped with (Appendix 2) an operation unit that receives an instruction to change the attitude of the housing; 2. The air purifier according to claim 1, further comprising: a drive control unit that controls the direction drive unit based on a change instruction received by the operation unit. (Appendix 3) 3. The air purifier according to claim 1, wherein the direction driving unit maintains the orientation of the housing at a plurality of elevation angle directions. (Appendix 4) The direction drive unit is a support part having an upper part supporting both sides of the housing and a bottom part supporting the housing with an upper surface of the bottom part spaced apart from the bottom of the housing; a rotation drive unit provided with a drive shaft near an upper end of the support unit, the housing being rotated around the drive shaft; 4. The air purifier according to claim 1, further comprising: (Appendix 5) 5. The air purifier according to claim 4, wherein an axis of the drive shaft passes through a center of gravity of the housing. (Appendix 6) A housing in which an intake port and an exhaust port are formed; A blowing means for generating an air flow from the suction port to the blowing port; an air cleaning filter that cleans the air sucked into the housing through the air intake by the air blowing means; a direction driving unit that changes a direction in which the air purified by the air cleaning filter is blown out from the air outlet by rotating an attitude of the air blowing means in an elevation angle direction; An air purifier equipped with (Appendix 7) an operation unit that receives an instruction to change the attitude of the air blowing means; 7. The air purifier according to claim 6, further comprising a drive control unit that controls the direction drive unit based on a change instruction received by the operation unit. (Appendix 8) 8. The air purifier according to claim 6, wherein the direction driving section maintains the attitude of the blowing means at a plurality of elevation angle directions. (Appendix 9) The air blowing means includes a fan, a fan case that houses the fan, and a fan motor that drives the fan to rotate. the fan case includes a fan outlet through which air purified by the air cleaning filter is blown out by the fan, 9. The air purifier of claim 6, wherein the direction driving unit changes the direction in which air is blown out from the fan outlet through the outlet by rotating the attitude of the fan case in an elevation angle direction.

[0109] (Explanation of symbols) 10 housing, 10a bottom, 11 front panel, 12 front case, 13 rear case, 13a external air passage, 14 outlet, 15 intake, 16 operation unit, 17 directional drive unit, 17a support unit, 17b rotation drive unit, 17c drive shaft, 18 air purifying filter, 19 blower, 19a fan, 19b fan case, 19b1 fan intake port, 19b2 fan outlet port, 19b3 fan air duct, 19c fan motor, 19c1 output shaft, 20 drive control unit, 30 housing, 31 front panel, 32 front case, 33 rear case, 33a external air passage, 34 outlet, 35 intake, 36 operation unit, 38 air purifier filter, 39a fan, 39b fan case, 39b1 fan intake port, 39b2 fan outlet port, 39b3 fan air duct, 39c fan motor, 39c1 output shaft, 40 drive control unit, 50 housing, 51 right panel, 52 right case, 53 left case, 53a external air passage, 54 outlet, 55 intake, 56 operation unit, 57 directional drive unit, 58 air purifying filter, 39 blower, 59 blower, 59a fan, 59b fan case, 59b1 fan intake, 59b2 fan outlet, 59b3 fan air passage, 59c fan motor, 59c1 output shaft, 59d rotary drive unit, 59d1 rotary drive motor, 59d2 output shaft, 59d3 drive gear, 59d4 driven gear, 60 drive control unit, 101 Air purifier, 102 Air purifier, 103 Air purifier, 200 floor surface, F0 airflow, F1 airflow, F2 airflow, F3 airflow, G1 center of gravity.

Claims

1. A housing in which an intake port and an exhaust port are formed; A blowing means for generating an air flow from the suction port to the blowing port; an air cleaning filter that cleans the air sucked into the housing through the air intake by the air blowing means; a direction driving unit that changes a direction in which the air purified by the air cleaning filter is blown out from the air outlet by rotating an attitude of the housing in an elevation angle direction; An air purifier equipped with

2. an operation unit that receives an instruction to change the attitude of the housing; The air purifier according to claim 1 , further comprising: a drive control unit that controls the direction drive unit based on a change instruction received by the operation unit.

3. The air purifier according to claim 1 , wherein the direction driving unit maintains the orientation of the housing at a plurality of elevation angles.

4. The direction drive unit is a support part having an upper part supporting both sides of the housing and a bottom part supporting the housing with an upper surface of the bottom part spaced apart from the bottom of the housing; a rotation drive unit provided with a drive shaft near an upper end of the support unit, the housing being rotated around the drive shaft; The air purifier according to claim 1 .

5. 5. The air purifier according to claim 4, wherein an axis of the drive shaft passes through a center of gravity of the housing.

6. A housing in which an intake port and an exhaust port are formed; A blowing means for generating an air flow from the suction port to the blowing port; an air cleaning filter that cleans the air sucked into the housing through the air intake by the air blowing means; a direction driving unit that changes a direction in which the air purified by the air cleaning filter is blown out from the air outlet by rotating an attitude of the air blowing means in an elevation angle direction; An air purifier equipped with

7. an operation unit that receives an instruction to change the attitude of the air blowing means; The air purifier according to claim 6 , further comprising: a drive control unit that controls the direction drive unit based on a change instruction received by the operation unit.

8. The air purifier according to claim 6 , wherein the direction driving unit maintains the orientation of the blowing means at a plurality of elevation angle directions.

9. the air blowing means includes a fan, a fan case that houses the fan, and a fan motor that drives the fan to rotate; the fan case includes a fan outlet through which air purified by the air cleaning filter is blown out by the fan, The air purifier according to claim 6 , wherein the direction driving unit changes the direction in which air is blown out from the fan outlet through the outlet by rotating the attitude of the fan case in an elevation angle direction.

Images