JP2018138854A - Blower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blower device that reduces disturbance of flow distribution on a cross flow fan without reducing a flow rate of air to be supplied.SOLUTION: An air conditioner includes a straightening part (20A) installed on a side opposite to a side facing a cross flow fan (15) of a stabilizer (16) to adjust a flow rate of air in a direction perpendicular to an axial direction to the cross flow fan (15). The straightening part (20A) has a length in a direction where the straightening part and the cross flow fan are aligned, which does not stay constant.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a blower using a cross flow fan.

  An air blower using a cross flow fan (also referred to as a cross-flow fan) (eg, an air conditioner having a wall-mounted indoor unit) is known. In such a type of blower, since the crossflow fan is a blower fan with low static pressure, if the pressure loss is weak and the pressure loss is high, a surging phenomenon is caused and a desired air volume cannot be obtained, or Problems such as abnormal noise occur.

  A technique for solving the above problem is disclosed in, for example, Patent Document 1. In the indoor unit of an air conditioner disclosed in Patent Literature 1, the air flow in the vicinity of the side wall is improved by improving the shape of the suction section tip of the rear guider and the shape of the ventilating furnace in the vicinity of the side wall at both ends of the cross flow fan. The static air flow is stabilized while minimizing the draft resistance by increasing the static pressure.

Japanese Patent No. 3695740 (Registered July 8, 2005)

  However, in the technique disclosed in Patent Document 1, a shape different from the basic cross section is added on the blowout side (downstream side) of the cross flow fan. For this reason, there is a problem that the blowing area on the downstream side of the cross flow fan is reduced, and the amount of air flow is reduced.

  One aspect of the present invention has been made in view of the above-described problem, and realizes a blower that can reduce disturbance in the flow distribution in a cross-flow fan without reducing the flow rate of air to be sent out. With the goal.

  In order to solve the above problems, a blower according to an aspect of the present invention is a blower including a crossflow fan and a stabilizer disposed along the axial direction of the crossflow fan, A stabilizer is provided on a side opposite to the side facing the cross flow fan, and includes a rectification unit that adjusts an air flow rate in a direction perpendicular to the axial direction to the cross flow fan, and the rectification unit includes the rectification unit The length in the direction in which the section and the cross flow fan are arranged or the inclination angle with respect to the stabilizer is not constant in the axial direction.

  According to one aspect of the present invention, it is possible to reduce the disturbance of the flow distribution in the cross flow fan without reducing the flow rate of the air to be sent out.

It is a perspective view which shows the external appearance of the front direction of the air conditioner which concerns on Embodiment 1 of this invention. It is a front view which shows the external appearance of the said air conditioner. It is sectional drawing of the said air conditioner cut | disconnected by the plane perpendicular | vertical to the longitudinal direction of the said air conditioner. It is a perspective view of the said air conditioner which abbreviate | omitted the front cabinet, the open panel, the 1st front side heat exchanger, and the 2nd front side heat exchanger. FIG. 5 shows a structure of a rectifying unit provided in the air conditioner, and is a schematic diagram of the inside of the air conditioner viewed from the direction of the arrow shown in FIG. 4. It is a schematic diagram which shows the structure of the rectification | straightening part with which the air conditioner as a modification of the said air conditioner is provided. It is a perspective view which shows the structure of the air conditioner which concerns on Embodiment 2 of this invention. It shows the structure of the rectification | straightening part with which the said air conditioner is provided, and is the schematic diagram inside the said air conditioner seen from the direction of the arrow shown in FIG. It is a schematic diagram which shows the structure of the rectification | straightening part with which the air conditioner as a modification of the said air conditioner is provided. It is a perspective view which shows the structure of the air conditioner which concerns on Embodiment 3 of this invention. It shows the structure of the rectification | straightening part with which the said air conditioner is provided, It is a schematic diagram inside the said air conditioner seen from the direction of the arrow shown in FIG. It is a schematic diagram which shows the structure of the rectification | straightening part with which the air conditioner as a modification of the said air conditioner is provided. It is a perspective view which shows the structure of the air conditioner which concerns on Embodiment 4 of this invention. It is a schematic diagram which shows the structure of the rectification | straightening part with which the air conditioner as a modification of the said air conditioner is provided.

Embodiment 1
Hereinafter, the air conditioner 1A as a blower in Embodiment 1 of the present invention will be described in detail with reference to FIGS.

  In the present embodiment, an air conditioner 1A that is an indoor unit of a separate type wall-mounted air conditioner including an indoor unit and an outdoor unit will be described as an example. However, the air blower according to one embodiment of the present invention may be a ceiling-mounted air conditioner, a floor-standing air conditioner, or an indoor dedicated air conditioner that does not have an outdoor unit ( It may be a window-mounted air conditioner. Moreover, the air blower which concerns on 1 aspect of this invention is not restricted to an air conditioner, What kind of air blower may be used if it is a blower using crossflow fans, such as a tower type fan and an air cleaner.

  In addition, in each drawing described below (particularly, FIG. 3 and the like), various members of the air conditioner 1A are shown, but descriptions of members not related to the present embodiment are omitted. Members that omit these descriptions may be understood to be the same as known members. Also, it should be noted that each drawing is intended to schematically explain the shape, structure, and positional relationship of each member, and is not necessarily drawn to scale.

(Configuration of air conditioner 1A)
FIG. 1 is a perspective view showing an external appearance of the air conditioner 1A in the front direction. FIG. 2 is a front view showing an appearance of the air conditioner 1A. 1, the + X direction is the right direction, the −X direction is the left direction, the + Y direction is the front direction, the −Y direction is the rear direction, the + Z direction is the upper direction, and the −Z direction is the lower direction.

  As shown in FIGS. 1 and 2, the air conditioner 1 </ b> A includes an air flow panel 11, a cabinet 12, and an open panel 13 as outer components.

  The airflow panel 11 defines a flow path of the airflow that blows out into the room. The airflow panel 11 is supported by the cabinet 12 so that it can be opened and closed. Opening and closing of the airflow panel 11 is controlled by a control device (not shown) in the air conditioner 1A according to the operating state of the air conditioner 1A. When the airflow panel 11 is opened, the outlet as the flow path is exposed.

  The cabinet 12 is a housing that houses each member of the air conditioner 1A. The cabinet 12 includes a front cabinet 12a that constitutes a part of the front surface, a top surface, and a side surface of the air conditioner 1A, and a back cabinet 12b that constitutes a part of the back surface and the side surface of the air conditioner 1A. Yes. On the upper surface of the cabinet 12, a lattice-shaped air inlet is provided. The schematic opening shape of the entire air inlet is an elongated rectangular shape along the X direction.

  FIG. 3 is a cross-sectional view of the air conditioner 1A cut along a plane perpendicular to the longitudinal direction (X-axis direction) of the air conditioner 1A. FIG. 4 is a perspective view of the air conditioner 1A in which the front cabinet 12a, the open panel 13, the first front side heat exchanger 14b, and the second front side heat exchanger 14c are omitted.

  As shown in FIGS. 2 to 4, the air conditioner 1 </ b> A includes a heat exchanger 14, a cross flow fan 15, a stabilizer 16, a rear guider 17, a drain pan 18, and a rectifying unit 20 </ b> A inside the cabinet 12.

  The heat exchanger 14 is provided above the inside of the cabinet 12 so as to surround the upper side of the crossflow fan 15 described later. The heat exchanger 14 functions as an evaporator for vaporizing the refrigerant during the cooling operation, and takes heat from the indoor air. On the other hand, the heat exchanger 14 functions as a condenser that liquefies the refrigerant during heating operation, and releases heat into the room.

  The heat exchanger 14 includes a back side heat exchanger 14a disposed on the back side inside the cabinet 12, and a first front side heat exchanger 14b and a second front side disposed on the front side inside the cabinet 12. And a heat exchanger 14c. The 1st front side heat exchanger 14b is located in the upper part rather than the 2nd front side heat exchanger 14c.

  The cross flow fan 15 has a central axis parallel to the X-axis direction, and can be rotated around the central axis by a driving force of a motor (not shown). Further, the cross flow fan 15 includes a plurality of blades (not shown) for sucking and sending air in the circumferential direction. As the cross flow fan 15 rotates about the central axis, indoor air is sucked from the air suction port, and an airflow that blows out from the airflow panel 11 to the room is created. Specifically, the airflow passes through a path that sequentially follows the upper surface of the cabinet 12, which is an air inlet, the heat exchanger 14, the crossflow fan 15, and the airflow panel 11.

  The stabilizer 16 is a member that defines a ventilation path from the cross flow fan 15 toward the air flow panel 11. The stabilizer 16 is disposed on the front side of the cross flow fan 15 and faces the cross flow fan 15 with a slight distance therebetween. The stabilizer 16 extends in the X-axis direction, has a width substantially equal to the width of the cross flow fan 15 in the axial direction, and has a length along a part of the cross flow fan 15 in the circumferential direction. Yes. The stabilizer 16 is also called a tongue. The stabilizer 16 serves to stabilize the air vortex resulting from the rotation of the cross flow fan 15 at a position suitable for the intended wind flow.

  The rear guider 17 is a member that defines a ventilation path from the cross flow fan 15 toward the air flow panel 11. The rear guider 17 is disposed on the back side of the cross flow fan 15 and faces the cross flow fan 15 with a slight distance therebetween. The rear guider 17 extends in the X direction, has a width substantially equal to the width of the cross flow fan 15 in the axial direction, and has a length along a portion of the cross flow fan 15 in the circumferential direction. .

  The drain pan 18 is provided in the lower part of the 2nd front side heat exchanger 14c, and receives the dew condensation water which falls from the 1st front side heat exchanger 14b and the 2nd front side heat exchanger 14c. In the present embodiment, the drain pan 18 and the stabilizer 16 are configured as separate members, but are not limited thereto. In the air conditioner of one aspect of the present invention, the drain pan and the stabilizer may be integrally formed.

  Next, the rectifying unit 20A will be described with reference to FIGS. FIG. 5 shows the structure of the rectifying unit 20A, and is a schematic diagram of the inside of the air conditioner 1A viewed from the direction of the arrow shown in FIG. In FIG. 5, only the cross flow fan 15, the stabilizer 16, and the rectifying unit 20A are shown for easy understanding.

  The rectifying unit 20A is a member for adjusting the air flow rate in a direction (direction from the rectifying unit 20A toward the cross flow fan 15) perpendicular to the axial direction to the cross flow fan 15 (that is, the X-axis direction). As shown in FIG. 3, the rectifying unit 20 </ b> A is provided on the side of the stabilizer 16 opposite to the side facing the cross flow fan 15. In other words, the rectification unit 20 </ b> A is provided on the front side of the stabilizer 16. In the cross section perpendicular to the axial direction of the cross flow fan 15 (that is, the cross section perpendicular to the XZ plane), the rectifying unit 20A has one end connected to the upper end 16a of the stabilizer 16, and the other end connected to the drain pan 18. And a predetermined angle (for example, 45 ° to 90 °) with the stabilizer 16. In the present embodiment, the left and right lengths of the rectifying unit 20A are the same as the left and right lengths of the cross flow fan 15, but the left and right lengths of the rectifying unit 20A are the left and right lengths of the cross flow fan 15. It may be shorter. The left and right lengths of the rectifying unit 20 </ b> A may be the same as the left and right lengths of the stabilizer 16 or may be longer than the left and right lengths of the stabilizer 16.

  As shown in FIGS. 4 and 5, the rectifying unit 20A has a cross-sectional length perpendicular to the axial direction of the crossflow fan 15 (the length in the direction in which the rectifying unit 20A and the crossflow fan 15 are arranged) It is not constant in direction. Specifically, the length of the cross section perpendicular to the X axis in the region (region A1 shown in FIG. 5) from the left end of the rectifying unit 20A to a certain distance is constant, and the region on the right side of the region A1 (FIG. 5). The length of the cross section perpendicular to the X axis in the region A2) shown in FIG.

  Note that the rectifying unit 20 </ b> A in the present embodiment is integrally formed with the stabilizer 16. Thereby, the stabilizer 16 and the rectification | straightening part 20A can be shape | molded with high dimensional accuracy.

(Effect of air conditioner 1A)
Here, it is assumed that the flow distribution inside the cross flow fan 15 is disturbed on the right side of the cross flow fan 15. In such a situation, for example, a boss portion (not shown) that receives a motor shaft (not shown) for fixing the motor with screws is present inside the cross flow fan 15. Occurs when pressure loss increases. In such a case, a desired amount of air cannot be blown, and abnormal noise due to a surging phenomenon occurs. Note that, after the use of the air conditioner 1A, the pressure loss increases due to the accumulation of dust on the filter member, so that the flow distribution inside the cross flow fan 15 is disturbed.

  With respect to this problem, the air conditioner 1A includes the rectifying unit 20A in which the length in the cross section perpendicular to the axial direction of the crossflow fan 15 is longer in the region A1 than in the region A2. As a result, the flow path in the direction perpendicular to the axial direction of the cross flow fan 15 is larger in the area A2 than in the area A1. Therefore, a flow from left to right occurs in the air flow toward the cross flow fan 15. As a result, the air flow rate toward the cross flow fan 15 in the region A2 is larger than the air flow rate toward the cross flow fan 15 in the region A1. Thereby, since the inflow amount of air into the cross flow fan 15 in the region A2 can be increased, disturbance of the flow distribution on the right side inside the cross flow fan 15 can be reduced.

  The rectifying unit 20 </ b> A is provided upstream of the cross flow fan 15 in the air flow path inside the air conditioner 1 </ b> A. As a result, the flow rate of the airflow on the downstream side of the cross flow fan 15 does not decrease. That is, the air conditioner 1A can reduce the disturbance of the flow distribution in the cross flow fan 15 without reducing the flow rate of the air to be sent out.

  In the air conditioner 1A according to the present embodiment, the rectifying unit 20A and the stabilizer 16 are integrally formed, but the blower of the present invention is not limited to this. 20 A of rectification | straightening parts and the stabilizer 16 in 1 aspect of this invention may be comprised by another component, for example, 20 A of rectification | straightening parts may be shape | molded with a foam material. By forming the rectifying unit 20A and the stabilizer 16 with separate parts, the stabilizer 16 can be formed with a mold having a simple structure. As a result, the dimensional accuracy of the stabilizer 16 can be improved. Further, when the rectifying unit 20A is formed from a foam material as a separate part, the foam material can be easily processed into a desired shape, and thus the shape of the rectifying unit 20A can be freely designed. These matters can also be applied to the embodiments and modifications described later.

  In the air conditioner 1A according to the present embodiment, the length of the cross section of the rectifying unit 20A perpendicular to the axial direction of the crossflow fan 15 is changed in the left-right direction, so that the crossflow fan 15 in the region A2 is changed. Although the inflow of air has been increased, the present invention is not limited to this. The air conditioner 1A of one aspect of the present invention changes the inclination angle of the rectifying unit 20A with respect to the stabilizer 16 (in other words, the inclination angle with respect to the crossflow fan 15) in the left-right direction, thereby changing the crossflow fan in the region A2. The structure which enlarges the inflow amount of the air to 15 may be sufficient. These matters can also be applied to the embodiments and modifications described later.

<Modification 1>
Next, an air conditioner 1B as a modification of the air conditioner 1A according to the first embodiment will be described with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The air conditioner 1B in the present modification includes a rectifying unit 20B instead of the rectifying unit 20A in the first embodiment.

  In the air conditioner 1A according to the first embodiment, the length of the rectifying unit 20A in the left-right direction is the same as the length of the cross flow fan 15 in the axial direction. On the other hand, in the air conditioner 1B, the length of the rectifying unit 20B in the left-right direction is shorter than the length of the cross flow fan 15 in the axial direction.

  FIG. 6 is a schematic diagram showing the structure of the rectifying unit 20B. In addition, FIG. 6 is the figure which looked at the air conditioner 1B from the same direction as FIG. 5 in Embodiment 1. FIG.

  As shown in FIG. 6, the rectifying unit 20B has a constant cross-sectional length perpendicular to the X axis in a region (region B1 shown in FIG. 6) from the left end of the rectifying unit 20B to a certain distance. In the region from the right end to a certain distance (region B2 shown in FIG. 6), the length of the cross section perpendicular to the X axis becomes shorter toward the right side, and the right end of the rectifying unit 20B (that is, the right end of the region B2) is reduced. It is located on the left side of the right end of the cross flow fan 15. That is, in the air conditioner 1 </ b> B, the rectifying unit 20 </ b> B is provided only on a part of the stabilizer 16 in the axial direction of the cross flow fan 15 on the side opposite to the side facing the cross flow fan 15.

  As described above, the air conditioner 1B includes the rectification unit 20B, so that when a part of the air flow toward the cross flow fan 15 reaches the rectification unit 20B, the air flow toward the cross flow fan 15 moves from left to right. The flow of As a result, the air flow rate toward the cross flow fan 15 in the region B2 and the region B3 is greater than the air flow rate toward the cross flow fan 15 in the region B1. Thereby, the inflow amount of air to the cross flow fan 15 in the region B2 and the region B3 can be increased. As a result, when the flow distribution on the right side inside the cross flow fan 15 is disturbed, the disturbance can be reduced.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The air conditioner 1C in the present embodiment includes a rectifying unit 20C instead of the rectifying unit 20A in the first embodiment.

  FIG. 7 is a perspective view of the air conditioner 1C in which the front cabinet 12a, the open panel 13, the first front side heat exchanger 14b, and the second front side heat exchanger 14c are omitted. FIG. 8 shows the structure of the rectifying unit 20B, and is a schematic diagram of the inside of the air conditioner 1C as seen from the direction of the arrow shown in FIG. In FIG. 8, only the cross flow fan 15, the stabilizer 16, and the rectifying unit 20C are shown for easy understanding.

  As shown in FIGS. 7 and 8, the rectifying unit 20C has a constant cross-sectional length perpendicular to the X axis in a predetermined region near the center in the left-right direction (region C2 shown in FIG. 8). In the region from the left end to the left side (region C1 shown in FIG. 8), the length of the cross section perpendicular to the X-axis decreases toward the left side, and from the right end of the region C2 to the right region (region C3 shown in FIG. 8). The length of the cross section perpendicular to the X-axis is shortened toward the right side. In other words, in the rectifying unit 20C, the length of the cross section perpendicular to the X axis becomes longer as it goes inward from both ends in the left-right direction. In the present embodiment, the left and right lengths of the rectifying unit 20C are the same as the left and right lengths of the cross flow fan 15, but the left and right lengths of the rectifying unit 20C are the left and right lengths of the cross flow fan 15. It may be shorter. Further, the left and right lengths of the rectifying unit 20 </ b> C may be the same as the left and right lengths of the stabilizer 16, or may be longer than the left and right lengths of the stabilizer 16.

  Here, it is assumed that the flow distribution inside the cross flow fan 15 is disturbed on the left and right sides of the cross flow fan 15. Such a situation occurs, for example, when there are areas without the blades on the left and right outer sides of the crossflow fan 15. Note that, after the use of the air conditioner 1C, the pressure loss increases due to the accumulation of dust on the filter member, so that the flow distribution inside the cross flow fan 15 is disturbed.

  With respect to this problem, the air conditioner 1C includes a rectifying unit 20C in which the length in the cross section perpendicular to the axial direction of the crossflow fan 15 is longer in the region C2 than in the regions C1 and C3. Accordingly, when a part of the air flow toward the cross flow fan 15 reaches the rectifying unit 20C, the air flow toward the cross flow fan 15 causes a flow from the central portion to the left side and the right side. As a result, the air flow rate toward the cross flow fan 15 in the region C1 and the region C3 is greater than the air flow rate toward the cross flow fan 15 in the region C2. Thereby, since the inflow amount of air to the cross flow fan 15 in the region C1 and the region C3 can be increased, the disturbance of the flow distribution on the left side and the right side inside the cross flow fan 15 can be reduced.

  In the air conditioner 1C according to the present embodiment, the length of the rectifying unit 20C having a cross section perpendicular to the X axis is constant in a predetermined region near the center in the left-right direction. Is not limited to this. That is, the air conditioner of one embodiment of the present invention only needs to have a configuration in which the length of the rectifying unit 20C having a cross section perpendicular to the X axis is constant in a certain region that is not an end.

<Modification 2>
Next, an air conditioner 1D as a modification of the air conditioner 1C according to the second embodiment will be described with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The air conditioner 1D in the present modification includes a rectifying unit 20D instead of the rectifying unit 20C in the second embodiment.

  In the air conditioner 1C according to the second embodiment, the length of the rectifying unit 20C in the left-right direction is the same as the length of the cross flow fan 15 in the axial direction. On the other hand, in the air conditioner 1D, the length of the rectifying unit 20D in the left-right direction is shorter than the length of the cross flow fan 15 in the axial direction.

  FIG. 9 is a schematic diagram illustrating the structure of the rectifying unit 20D. In addition, FIG. 8 is the figure which looked at air conditioner 1D from the same direction as FIG. 8 in Embodiment 2. FIG.

  As shown in FIG. 9, the rectifying unit 20D has a constant cross-sectional length perpendicular to the X axis in a predetermined region near the center in the left-right direction (region D3 shown in FIG. 9), and the left side from the left end of the region D3. The length of the cross section perpendicular to the X axis in the region (region D2 shown in FIG. 9) becomes shorter toward the left side, and from the right end of the region D3 to the right side region (region D4 shown in FIG. 9). The length of the vertical section becomes shorter as it goes to the right. Further, the left end of the rectifying unit 20D (that is, the left end of the region D2) is located on the right side of the left end of the cross flow fan 15, and the right end of the rectifying unit 20D (that is, the right end of the region D4) is It is located on the left side of the right end. That is, in the air conditioner 1 </ b> D, the rectifying unit 20 </ b> D is provided only on a part of the stabilizer 16 in the axial direction of the cross flow fan 15 on the side opposite to the side facing the cross flow fan 15.

  As described above, the air conditioner 1D includes the rectifying unit 20D, so that when a part of the air flow toward the cross flow fan 15 reaches the rectifying unit 20D, the air flow toward the cross flow fan 15 in the left side from the center portion. And a flow to the right occurs. As a result, the air flow rate toward the cross flow fan 15 in the regions D1, D2, D4, and D5 is greater than the air flow rate toward the cross flow fan 15 in the region D3. Thereby, since the inflow amount of the air to the cross flow fan 15 in the regions D1, D2, D4, and D5 can be increased, the disturbance of the flow distribution on the left and right sides inside the cross flow fan 15 can be reduced. .

[Embodiment 3]
The following will describe another embodiment of the present invention with reference to FIG. 10 and FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The air conditioner 1E in the present embodiment includes a rectifying unit 20E instead of the rectifying unit 20A in the first embodiment.

  FIG. 10 is a perspective view of the air conditioner 1E in which the front cabinet 12a, the open panel 13, the first front side heat exchanger 14b, and the second front side heat exchanger 14c are omitted. FIG. 11 shows the structure of the rectifying unit 20E, and is a schematic diagram of the inside of the air conditioner 1E viewed from the direction of the arrow shown in FIG. In FIG. 11, only the cross flow fan 15, the stabilizer 16, and the rectifying unit 20E are shown for easy understanding.

  In the rectifying unit 20C, as shown in FIGS. 10 and 11, the length of the cross section perpendicular to the X axis in the region from the left end to the center in the left-right direction (region E1 shown in FIG. 11) becomes shorter toward the right side. The length of the cross section perpendicular to the X axis in the region from the right end to the center in the left-right direction (region E2 shown in FIG. 11) becomes shorter as it goes to the left. In the present embodiment, the left and right lengths of the rectifying unit 20E are the same as the left and right lengths of the cross flow fan 15, but the left and right lengths of the rectifying unit 20E are the left and right lengths of the cross flow fan 15. It may be shorter. Further, the left and right lengths of the rectifying unit 20 </ b> E may be the same as the left and right lengths of the stabilizer 16 or may be longer than the left and right lengths of the stabilizer 16.

  Here, it is assumed that the flow distribution inside the cross flow fan 15 is disturbed near the center in the left-right direction of the cross flow fan 15. Such a situation includes, for example, a member (not shown) that supports the drain pan 18 at the center in the left-right direction of the air outlet, a member that supports the airflow panel 11 (not shown), a charged particle generation unit such as ions, and an up-and-down wind direction plate. This occurs when there is a structure such as a bearing.

  With respect to this problem, the air conditioner 1E includes a rectifying unit 20E. Accordingly, when a part of the air flow toward the cross flow fan 15 reaches the rectifying unit 20E, a flow from the left side and the right side to the center portion occurs in the air flow toward the cross flow fan 15. As a result, the air flow rate toward the cross flow fan 15 near the left and right center is greater than the air flow rate toward the cross flow fan 15 on the left and right sides. As a result, the amount of air flowing into the cross flow fan 15 in the vicinity of the center in the left and right direction can be increased, so that the disturbance of the flow distribution in the vicinity of the center in the left and right direction inside the cross flow fan 15 can be reduced.

  In the air conditioner 1E according to the present embodiment, the length of the rectifying unit 20E having a cross section perpendicular to the X-axis is shortened toward the center in the left-right direction. Not limited. That is, the air conditioner of one embodiment of the present invention has a cross-sectional rectification perpendicular to the X axis toward a certain position (a position other than the end, a position positioned between both ends) that is not an end in the left-right direction. What is necessary is just the structure where the length of the part 20E becomes short.

<Modification 3>
Next, an air conditioner 1F as a modification of the air conditioner 1E according to the third embodiment will be described with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The air conditioner 1F in the present modification includes a rectification unit 20F instead of the rectification unit 20E in the third embodiment.

  In the air conditioner 1 </ b> E according to the third embodiment, the rectifying unit 20 </ b> C is composed of one member, and the length in the left-right direction is the same as the length in the axial direction of the cross flow fan 15. On the other hand, the rectifying unit 20F of the air conditioner 1F includes two members.

  FIG. 12 is a schematic diagram illustrating the structure of the rectifying unit 20F. In addition, FIG. 12 is the figure which looked at the air conditioner 1F from the same direction as FIG. 11 in Embodiment 3. FIG.

  As illustrated in FIG. 12, the rectifying unit 20F includes a first rectifying unit 20Fa and a second rectifying unit 20Fb. In the first rectifying unit 20Fa, the length of the cross section perpendicular to the X axis in the region (region F1 shown in FIG. 12) from the left end to a certain distance becomes shorter toward the right side. The left end of the first rectifying unit 20Fa is at the same position as the left end of the cross flow fan 15 in the left-right direction. In the second rectification unit 20Fb, the length of the cross section perpendicular to the X axis in the region (region F3 shown in FIG. 12) from the right end to a certain distance becomes shorter toward the left side. The right end of the second rectifying unit 20Fb is at the same position as the right end of the cross flow fan 15 in the left-right direction.

  In the air conditioner 1F, a rectifying unit is not formed in a region (region F2 shown in FIG. 12) surrounded by the region F1 and the region F3. That is, in the air conditioner 1 </ b> F, the rectifying unit 20 </ b> F is provided only on a part of the stabilizer 16 in the axial direction of the cross flow fan 15 on the side opposite to the side facing the cross flow fan 15.

  As described above, the air conditioner 1F includes the rectifying unit 20F, so that when a part of the air flow toward the cross flow fan 15 reaches the rectifying unit 20D, the air flow toward the cross flow fan 15 from the left side and the right side. A flow to the center occurs. As a result, the air flow rate toward the cross flow fan 15 near the left and right center is greater than the air flow rate toward the cross flow fan 15 on the left and right sides. As a result, the amount of air flowing into the cross flow fan 15 in the vicinity of the center in the left and right direction can be increased, so that the disturbance of the flow distribution in the vicinity of the center in the left and right direction inside the cross flow fan 15 can be reduced.

[Embodiment 4]
Another embodiment of the present invention will be described below with reference to FIGS. 13 and 14. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The rectifying units 20A to 20F of the air conditioners 1A to 1F according to the first to third embodiments have a stabilizer 16 at one end in a cross section perpendicular to the axial direction of the crossflow fan 15 (that is, a cross section perpendicular to the XZ plane). Connected to the upper end 16a. In contrast, in the air conditioner 1G according to the present embodiment, instead of the rectifying unit 20A according to the first embodiment, the upper end portion 16a of the stabilizer 16 is connected in a partial range in the axial direction of the crossflow fan 15. No rectification unit 20G is provided.

  FIG. 13 is a perspective view of the air conditioner 1G in which the front cabinet 12a, the open panel 13, the first front side heat exchanger 14b, and the second front side heat exchanger 14c are omitted. FIG. 14 shows the structure of the rectification unit 20G, and is a schematic diagram of the inside of the air conditioner 1G as seen from the direction of the arrow shown in FIG. In FIG. 14, only the cross flow fan 15, the stabilizer 16, and the rectifying unit 20G are shown for easy understanding.

  In the region near the center in the left-right direction (region G2 shown in FIG. 14), the rectifying unit 20G has a stabilizer whose one end is in a cross section perpendicular to the axial direction of the crossflow fan 15 (ie, a cross section perpendicular to the X axis). 16 is connected to the upper end portion 16 a and the other end portion is connected to the drain pan 18. As a result, the rectifying unit 20G has a constant cross-sectional length perpendicular to the X axis in the region G2. Further, in the rectifying unit 20G, one end is connected to the drain pan 18 in the region from the left end of the region G2 to the left side (region G1 shown in FIG. 14), and the length of the cross section perpendicular to the X axis is on the left. It gets shorter as you go. Furthermore, in the rectifying unit 20G, one end is connected to the drain pan 18 in the region from the right end of the region G2 to the right side (region G3 shown in FIG. 14), and the length of the cross section perpendicular to the X axis is to the right. It gets shorter as you go.

  The air conditioner 1G includes a rectifying unit 20G in which the length in the cross section perpendicular to the axial direction of the crossflow fan 15 is longer in the region G2 than in the regions G1 and G3. Thus, when a part of the air flow toward the cross flow fan 15 reaches the rectifying unit 20G, the air flow toward the cross flow fan 15 causes a flow from the central portion to the left side and the right side. As a result, the air flow rate toward the cross flow fan 15 in the region G1 and the region G3 is greater than the air flow rate toward the cross flow fan 15 in the region G2. Thereby, since the inflow amount of air to the cross flow fan 15 in the region G1 and the region G3 can be increased, the disturbance of the flow distribution on the left side and the right side inside the cross flow fan 15 can be reduced.

[Summary]
A blower device (air conditioners 1A to 1G) according to aspect 1 of the present invention is a blower device including a crossflow fan 15 and a stabilizer 16 arranged along the axial direction of the crossflow fan, Provided on the side of the stabilizer opposite to the side facing the cross flow fan, and comprising rectifying units 20A to 20G for adjusting the air flow rate in the direction perpendicular to the axial direction to the cross flow fan, the rectifying unit In the axial direction, the length in the direction in which the rectifying unit and the cross flow fan are arranged or the inclination angle with respect to the stabilizer is not constant.

  Ideally, the air flow distribution is uniform inside the crossflow fan. Normally, even if the flow rate of air flowing into the crossflow fan is constant in the axial direction, The air flow distribution is disturbed and the flow rate of the discharged air is different in the axial direction.

  Therefore, according to the above configuration, the rectifying unit that adjusts the air flow rate to the cross flow fan in the direction perpendicular to the axial direction is the length in the direction in which the rectifying unit and the cross flow fan are arranged, or the stabilizer. Are not constant in the axial direction (in other words, there are regions that are different from each other in the axial direction). Thereby, the flow rate of the air flowing into the cross flow fan in the axial direction can be adjusted so that the air flow distribution in the cross flow fan is made closer to the uniform. As a result, it is possible to reduce the disturbance of the air flow distribution inside the cross flow fan. That is, the rectifying unit may be formed so as to adjust the flow rate of the air flowing into the cross flow fan in the axial direction so as to reduce the disturbance of the air flow distribution inside the cross flow fan. In this manner, the air flow rate toward the cross flow fan can be adjusted by appropriately forming the rectifying unit. As a result, disturbance in the flow distribution inside the cross flow fan can be reduced.

  Moreover, the rectification | straightening part is provided in the upstream of the crossflow fan in the air flow path in the inside of an air conditioner. Thereby, the flow volume of the airflow downstream from the cross flow fan is not reduced. That is, the air conditioner can reduce the disturbance of the flow distribution in the cross flow fan without reducing the flow rate of the air to be sent out.

  The air blower according to aspect 2 of the present invention is the air blower according to aspect 1, in which the rectifying unit is arranged in a direction in which the rectifying unit and the cross flow fan are arranged in a direction from one end in the axial direction to the other end. The length may be shortened.

  According to said structure, the flow path which goes to the direction perpendicular | vertical to the axial direction of a crossflow fan becomes larger on the other edge part side rather than the one edge part side. Therefore, a flow from one end side to the other end side occurs in the air flow toward the cross flow fan. As a result, the air flow rate toward the cross flow fan on the other end side is greater than the air flow rate toward the cross flow fan on the one end side. Thereby, since the inflow amount of air to the cross flow fan on the other end side can be increased, disturbance of the flow distribution on the other end side inside the cross flow fan can be reduced.

  The air blower according to aspect 3 of the present invention is the air blowing device according to aspect 1, in which the rectifying unit is arranged in a direction in which the rectifying unit and the cross flow fan are arranged in a direction from both the end portions to the both end portions that are not the end portions in the axial direction. The length may be shortened.

  According to said structure, when a part of air flow which goes to a crossflow fan reaches a rectification | straightening part, the flow from a certain area | region which is not an edge part to the both sides will arise in the airflow which goes to a crossflow fan. As a result, the air flow rate toward the cross flow fan 15 on both sides is greater than the air flow rate toward the cross flow fan in a certain region that is not an end. Thereby, since the inflow amount of air to the cross flow fan on both sides can be increased, the disturbance of the flow distribution on both sides inside the cross flow fan can be reduced.

  The air blower according to aspect 4 of the present invention is the air blowing device according to aspect 1, in which the rectifying unit is arranged in a direction in which the rectifying unit and the crossflow fan are arranged in a direction from the both ends in the axial direction to a position that is not an end. The length may be shortened.

  According to the above configuration, when a part of the air flow toward the cross flow fan reaches the rectifying unit, the air flow toward the cross flow fan causes a flow from both sides to a certain position that is not the end. As a result, the air flow rate toward the cross flow fan at a certain position that is not the end is greater than the air flow rate toward the cross flow fan on both sides. Thereby, since the inflow amount of air to the cross flow fan at a certain position that is not the end can be increased, disturbance of the flow distribution at a certain position that is not the end inside the cross flow fan can be reduced.

  In the air blower according to aspect 5 of the present invention, in any one of the above aspects 1 to 4, the rectifying unit is provided on a part of the stabilizer on a side opposite to the side facing the cross flow fan. It may be a configuration.

  According to the above configuration, as described above, the rectifying unit is directed to the cross flow fan as described above even if it is provided on a part of the stabilizer on the side opposite to the side facing the cross flow fan. Since the air flow rate can be adjusted, the disturbance of the flow distribution inside the cross flow fan can be reduced.

  The air blower which concerns on aspect 6 of this invention WHEREIN: The structure by which the said rectification | straightening part was comprised by components different from the said stabilizer in any of the said aspects 1-5 may be sufficient.

  According to said structure, a stabilizer can be shape | molded with the metal mold | die of a simple structure. As a result, the dimensional accuracy of the stabilizer can be improved.

  The air blower which concerns on aspect 7 of this invention in the said aspect 6 WHEREIN: The structure currently shape | molded with the foaming material may be sufficient as the said another component.

  According to said structure, since a foaming material is easy to process into a desired shape, the shape of a rectification | straightening part can be designed freely.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

1A-1G Air conditioner (blower)
15 Cross flow fan 16 Stabilizer 20A-20G Rectification part

Claims (7)

A blower comprising a cross flow fan and a stabilizer disposed along the axial direction of the cross flow fan,
The stabilizer is provided on a side opposite to the side facing the cross flow fan, and includes a rectifying unit that adjusts an air flow rate in a direction perpendicular to the axial direction to the cross flow fan,
The blower device characterized in that the rectifying unit has a length in a direction in which the rectifying unit and the crossflow fan are arranged or an inclination angle with respect to the stabilizer is not constant in the axial direction.   2. The length of the rectifying unit in a direction in which the rectifying unit and the crossflow fan are arranged is shortened from one end in the axial direction toward the other end. The blower described.   2. The length of the rectification unit and the cross flow fan in a direction in which the rectification unit and the crossflow fan are arranged are shortened from a region that is not the end in the axial direction toward both ends. The blower described.   The length of the said rectification | straightening part and the crossflow fan in the direction where the said rectification | straightening part and the cross flow fan are shortened as it goes to a certain position which is not an edge part from the both ends of the said axial direction. The blower described.   The blower according to any one of claims 1 to 4, wherein the rectifying unit is provided on a part of the stabilizer on a side opposite to the side facing the cross flow fan.   The blower according to any one of claims 1 to 5, wherein the rectifying unit is configured by a separate component from the stabilizer.   The blower according to claim 6, wherein the separate part is formed of a foam material.

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