JP2016044862A - Floor installation type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor installation type air conditioner capable of easily drawing out an air blower or a wind direction guide to a front surface side of a casing.SOLUTION: This invention has a configuration in which a fan casing and an air duct are separated to each other with a prescribed distance being left between a fan casing side blowing-out port and an inlet of an air duct fixed to a casing side blowing-out port, the blowing-out port of the fan casing and an inlet of the air duct are connected by a removable relay air duct and at the same time a wind direction guide is attached in the relay air duct. With this arrangement, it is possible to draw out the wind direction guide and the blower to the front surface side of the casing in an easy manner by removing the relay air duct and it is possible to carry out easily an inspection work and a repairing work for the blower.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a floor-standing air conditioner, and more particularly to a floor-standing air conditioner that can inspect and repair a blower by pulling out a blower from the front of the floor-standing air conditioner.

  A floor-standing air conditioner that is installed on the floor of the room and air-conditions the room is provided with a heat exchanger path and a blower inside the enclosure that forms the outline of the floor-standing air conditioner, and heat is passed through the heat exchanger. The exchanged air is blown into the room by a blower rotated by an electric motor for air conditioning. Such a floor-standing air conditioner is used for, for example, interpersonal air conditioning in a production line in a factory, air conditioning in a machine room, air conditioning in a storage warehouse, air conditioning in a station premises, and air conditioning in a space such as a hall. Is.

  In such a floor-standing air conditioner, the blower is composed of a fan casing and a fan runner housed in the fan casing, and the fan runner is driven by an electric motor disposed at a lower side portion of the fan casing. It is. The rotational driving force of the electric motor is such that the rotation of the pulley fixed to the rotating shaft of the electric motor is transmitted to the pulley fixed to the rotating shaft of the fan runner via a belt or the like, thereby rotating the fan runner. . As a result, an air flow is formed inside the housing, the air conditioned from the air inlet of the fan casing is sucked through the heat exchanger, and the air conditioned from the air outlet of the fan casing is drawn. It blows air indoors.

  By the way, since this kind of floor-standing air conditioner is used indoors, it is necessary to keep it clean from the viewpoint of hygiene, and it is desirable to be able to wash each part inside the blower. It is desirable to be able to inspect and repair these parts regularly. In order to clean the blower from such a request, in Japanese Patent Application Laid-Open No. 2006-10177 (Patent Document 1), a maintenance opening is formed in a part of the fan casing, and a maintenance panel covering the maintenance opening is detachably provided. It has been proposed.

  And in patent document 1, in the case of normal operation, a maintenance opening is closed with a maintenance panel, the function of a fan casing is given, and when cleaning an internal fan runner, a maintenance panel is removed and a maintenance opening is exposed. The fan runner is cleaned by flowing a cleaning solution such as water from the maintenance opening. However, since the air conditioner described in Patent Document 1 mainly aims to clean the fan runner, it has not been examined from the viewpoint of inspection and repair of the blower, and a specific proposal for this point has been made. Not.

JP 2006-10177 A

  By the way, in recent floor-standing air conditioners, air is sucked in from the front or back of the front side of the casing constituting the air conditioner, and is air-conditioned from the air outlet provided in the upper part of the casing through a heat exchanger and a blower. The air is blown out into the room. In this case, as described in Patent Document 1, the blower is often arranged on the upper part of the casing (about 1.7 m from the floor), and parts replacement work by inspection and repair of the blower is performed indoors. For this reason, it is often impossible to use cranes and other equipment.

  For this reason, in consideration of maintainability such as inspection and repair, install the blower around the middle of the housing, open the front of the front of the housing, and pull out the blower to the front so that the blower can be inspected and repaired. What has been configured to do so has been proposed. When such a configuration is adopted, an operator who performs inspection and repair can pull out the blower from the front of the casing to the outside to expose it, disassemble the blower in a free state, and perform inspection and repair.

  However, when the blower is installed around the middle stage of the housing, the fan casing side air outlet formed in the fan casing of the air blower and the housing side air outlet provided in the upper part of the housing are separated from each other by distance. An air duct connecting the side outlet and the casing side outlet is required. In addition, when this air duct is used, pressure loss occurs due to the difference in the channel cross-sectional shape of the fan casing side outlet and the channel cross-sectional shape of the air duct. For this reason, the air direction guide which reduces pressure loss is arrange | positioned in an air duct, and it is set as the structure which gradually enlarges the flow path area of an air duct toward a housing | casing side blower outlet from a fan casing side blower outlet.

  However, in the floor-type air conditioner having such a configuration, the air duct and the wind direction guide are fixed to the fan casing side air outlet and the housing side air outlet. There was a problem that it was difficult to pull out. For this reason, the structure which can draw out an air blower and a wind direction guide to the front side of a housing | casing easily at the time of inspection and repair is strongly desired.

  An object of the present invention is to provide a floor-standing air conditioner that can easily pull out a blower and a wind direction guide to the front side of the housing.

  A feature of the present invention is that the fan casing and the air duct are separated by a predetermined distance between the fan casing side air outlet and the air duct inlet fixed to the housing side air outlet. The outlet and the inlet of the air duct are connected by a removable relay air duct, and a wind direction guide is attached in the relay air duct.

  According to the present invention, it is possible to easily pull out the blower to the front side of the housing by separating the blower and the air duct by removing the relay air duct, and the blower can be easily inspected and repaired. Has an effect. Of course, the wind direction guide can also be removed together with the relay air duct.

1 is a front view of a floor-standing type air conditioner with an upper panel cover and a lower panel cover removed according to an embodiment of the present invention. It is a right view of the floor-standing type air conditioner with the side cover removed. It is a vertical side view which shows the structure from the air blower shown in FIG. 1 to the housing | casing side blower outlet provided in the housing | casing upper part. It is a perspective view which shows the structure of the fan casing shown in FIG. It is a disassembled perspective view for demonstrating the process of removing the air blower of the floor-standing type air conditioning apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications and application examples are included in the technical concept of the present invention. Is also included in the range.

  1 and 2, the floor-standing air conditioner includes a housing 1, and the housing 1 has a bottom surface portion 2 as a foundation, a right side cover 3 as a design surface, a left side cover 4, and an upper cover. 5. An open area is formed on the front surface, which is the front side of the housing 1, and an upper panel cover 8 and a lower panel cover 9 serving as design surfaces are detachably attached to the open area. The upper panel cover 8 and the lower panel cover 9 are removed when the floor-standing air conditioner is inspected and repaired. Note that the upper panel cover 8 and the lower panel cover 9 can be rotated upward and downward of the housing 1 to open the front of the housing 1.

  As shown in FIG. 2, a suction port 6 for sucking room air is formed on the back surface of the housing 1, and a heat exchanger 11 is disposed on the inner side. The heat exchanger 11 is supplied with refrigerant from a refrigeration cycle (not shown). Two casing-side outlets 7 are provided in the upper cover 5 of the casing 1, and air conditioned by the heat exchanger 11 is blown out into the room.

  An electric motor 12 is installed on the bottom surface portion 2 of the housing 1, and a pulley 15 is fixed to the rotating shaft thereof. A drawer shelf 18 is attached on the upper side of the electric motor 12 around the middle of the casing 1 (near the center in the height direction of the casing 1). The drawer shelf 18 is configured to slide on the rail 10 fixed inside the right side cover 3 and the left side cover 4 of the housing 1. As a result, the drawer shelf 18 can move toward the front of the housing 1 and can be pulled out beyond the housing 1 until it is exposed to the outside.

  Two fan casings 13 are mounted on the drawer shelf 18, and a fan runner 14 is built in the fan casing 13. A pulley 15 is fixed to the rotating shaft 17 of the fan runner 14, and this pulley 15 is connected to the pulley 15 on the electric motor 12 side by a V belt 16. The rotation of the pulley 15 on the side of the electric motor 12 is transmitted to the pulley 15 on the side of the fan runner 14 via the V-belt 16, whereby the fan runner 14 rotates.

  An outlet of the air duct 19 is fixed to the housing side air outlet 7, whereby the housing side air outlet 7 is connected to the outlet of the air duct 19. The inlet of the air duct 19 is separated from the fan casing-side outlet of the fan casing 13 by a predetermined distance, and the fan casing 13 and the air duct 19 are separated from each other.

  A relay air duct 22 is disposed between the fan casing side air outlet of the fan casing 13 and the inlet of the air duct 19, and the relay air duct 22 connects the fan casing side air outlet and the air duct 19 without gaps. The relay air duct 22 is detachably attached to a plate member forming the fan casing side air outlet and the air duct 19 by using a fixing screw 24. When the relay air duct 22 is removed, the relay air duct 22 can be pulled out toward the front of the housing by removing the fixing screw 24.

  A drawing opening (not shown) for drawing out the relay air duct 22 is formed on the front side of the air duct 19. This extraction opening is an opening for drawing out a wind direction guide (not shown) attached in the relay air duct 22 from the air duct 19. Therefore, in a normal operation state, in order to ensure the function as the air duct 19, it is blocked by the drawer opening lid 23 that blocks the drawer opening. The drawer opening lid 23 is also detachably attached to a plate material forming the air duct 19 using a fixing screw 24. Therefore, when removing the relay air duct 22, it is only necessary to remove the relay air duct 23 after removing the drawer opening lid 23.

  In this embodiment, the air duct 19 is separate from the housing 1, but the air duct 19 may be formed in the housing 1 itself, and the number of blowers is not limited to two but one or three. Even this is acceptable.

  Next, the configuration in the vicinity of the fan casing 13, the air duct 19, and the relay air duct 22 will be described with reference to FIGS.

  The fan casing side air outlet 25 of the fan casing 13 includes an air guide plate 20, and an air outlet 26 is formed by the air guide plate 20 and the fan casing side air outlet 25. The air guide plate 20 is for ensuring fan performance. After the fan runner 14 is placed in the fan casing 13, the air guide plate 20 partially closes the outlet to make the opening area of the blowout opening 26 appropriate. . For this reason, the area of the flow path through which air blows is smaller than the outer peripheral frame of the fan casing outlet 25 of the fan casing 13. Therefore, when the air duct 19 is simply connected by the relay air duct 22 attached to the outer peripheral frame of the fan casing side air outlet 25, a pressure loss occurs due to a rapid expansion of the flow path area.

  In the present embodiment, the airflow guide 21 is provided to gradually increase the flow path area from the front end surface portion of the air guide plate 20 toward the inlet 19D side of the air duct 19, thereby suppressing pressure loss. The wind direction guide 21 is fixed by fixing screws on the left and right side surfaces of the relay air duct 22. The front end of the wind direction guide 21 is exposed so as to protrude outward from the upper end surface of the relay air guide 22, and the front end of the wind direction guide 21 extends to the inner surface of the back surface portion 19 </ b> B of the air duct 19. Here, the air duct 19 extends until it contacts the inner surface of the back surface portion 19B.

  Thus, as shown in FIG. 3, the wind direction guide 21 extends from the fan casing side outlet 25 of the fan casing 13 to the inside of the predetermined length of the air duct 19. Further, both side surfaces of the wind direction guide 21 are opposed to both side surfaces of the air duct 19 via a slight gap (corresponding to the thickness of the plate member constituting the relay air duct 22), and the air is opposed to both sides of the wind direction guide 21. The leakage from the surface is minimized. The reason for providing the gap in this way is that when the relay air duct 22 with the integrated wind direction guide 21 is pulled out, it is smoothly pulled out without coming into contact with both side surfaces of the air duct 19.

  The shape of the inlet 19D of the air duct 19 is rectangular, and the shape of the fan casing side outlet 25 of the fan casing 13 is also rectangular. Also, the dimensions of each rectangle are substantially the same. Accordingly, since the relay air duct 22 covers these from the outside, the relay air duct 22 can be formed by combining the flat plates, so that the manufacture is easy.

The inlet 19D of the air duct 19 and the fan casing side outlet 25 of the fan casing 13 are separated from each other with a predetermined distance L1. Therefore, the air duct 19 and the fan casing 13 are separated. However, the length of the back surface portion 19B of the air duct 19 and the back surface portion 25B of the fan casing side air outlet 25 is determined to overlap each other. Further, in order to pull out the fan casing 13 to the front side, the back surface portion 25 </ b> B of the fan casing side air outlet 25 is positioned inside the back surface portion 19 </ b> B of the air duct 19. In this state, both can be fixed by screwing a fixing screw toward the back surface portion 19B of the air duct 19 from the screw hole 27 provided in the back surface portion 25B of the fan casing side air outlet 25. Of course, if the fixing screw is removed, both the fixed states are released. As described above, the inlet 19D of the air duct 19 and the fan casing side outlet 25 of the fan casing 13 are separated by a predetermined distance L1. . A relay air duct 22 having a length longer than the distance L1 connects the inlet 19D of the air duct 19 and the fan casing side outlet 25 of the fan casing 13 without a gap. The relay air duct 22 is formed in a “U” shape having a front portion 22A and left and right side portions 22C, and covers both the inlet 19D of the air duct 19 and the fan casing side outlet 25 of the fan casing 13 from the outside. Is fixed with a fixing screw. For this reason, if the fixing screw is removed, the relay air duct 22 can be drawn out from the inlet 19D of the air duct 19 and the fan casing side outlet 25 of the fan casing 13 toward the front side of the housing 1. The front portion 22A of the air duct 22 is formed by overlapping the front portions 25A of the fan casing side air outlet 25, and both are fixed by a fixing screw. The front portion 19A of the air duct 19 has a drawer opening 27 to be described later, and is not fixed by a fixing screw. Further, both side surfaces 22C of the relay air duct 22 are such that the side surface portion 25C of the fan casing side air outlet 25 and the side surface portion 19C of the air duct 19 overlap each other, and both are fixed by fixing screws.

  Therefore, the gap between the side surface portion 25C of the fan casing side air outlet 25 and the side surface portion 19C of the air duct 19 and the gap between the front surface portion 25A of the fan casing side air outlet 25 and the front surface portion 19A of the air duct 19 are relayed. The air duct 22 is closed. As will be described later, the drawer opening lid 23 serves as the front portion 19A of the air duct 19, and in this case, the upper end of the front portion 22A of the relay air duct 22 is in contact with the lower end of the drawer opening lid 23. Will be in contact.

  Further, the relay air duct 22 is in a free state when each fixing screw is removed, and can be removed toward the front of the housing 1. Of course, since the wind direction guide 21 is fixed to the relay air duct 22, it is removed together with the relay air guide 22.

  In the front portion 19A of the air duct 19, a drawer opening 27 extending from the end face of the inlet 19D over a predetermined distance is formed. The drawer opening 27 is an opening for simultaneously pulling out the wind direction guide 21 when the relay air duct 22 is pulled out. Therefore, a clearance of a predetermined distance L <b> 2 is formed between the inner end surface of the drawer opening 27 and the front end surface of the wind direction guide 21. For this reason, when the relay air duct 22 is pulled out, the wind direction guide 21 can avoid interference with the plate material forming the front portion 19 </ b> A of the air duct 19.

  If the drawer opening 27 is left open, the function of the air duct 19 is not fulfilled, so that the drawer opening 27 is closed from the outside by the drawer opening lid 23. As a result, the drawer opening 27 functions as the front portion 19 </ b> A of the air duct 19 in a normal operation state. In the present embodiment, the relay air duct 22 and the drawer opening lid 23 are configured as separate parts, but if necessary, the relay air duct 22 and the drawer opening lid 23 can be integrally formed.

  Next, a specific inspection and repair procedure according to this embodiment will be described with reference to FIG. 4. First, the fixing screw of the drawer opening lid 23 is removed and the drawer opening lid 23 is removed from the front portion 19 </ b> A of the air duct 19. As a result, a space through which the wind direction guide 21 passes is secured.

  Next, the fixing screw of the relay air duct 22 is removed. In this case, the fixing screw fixing the front part 22A of the relay air duct and the front part 25A of the fan casing side outlet 25, the side part 22C of the relay air duct, the side part 19C of the air duct 19 and the fan casing side blower. Since there are fixing screws for fixing the side surface portion 25C of the outlet 25, all of them are removed. As a result, the relay air duct 22 becomes free.

  Next, when the relay air duct 22 is pulled out to the front side of the housing 1, the wind direction guide 21 is also pulled out together. The wind direction guide 21 can be pulled out without any obstacle by the drawing opening 27. When the relay air duct 22 is pulled out, it can be removed so that the lower end surface of the wind direction guide 21 gets over the upper end of the front portion 25A of the fan casing side air outlet 25.

  Next, since the relay air duct 22 does not exist, the back surface portion 25B of the fan casing side air outlet 25 is exposed. Therefore, the fixing screw which fixes the back surface part 25B of the fan casing side air outlet 25 and the back surface part 19B of the air duct 19 can be easily removed. As a result, the air duct 19 and the fan casing 13 are completely separated.

  Next, when the drawer shelf 18 is pulled out to the front side of the housing 1, the fan casing 13 attached to the drawer shelf 18 is also pulled out, so that the operator can easily check and repair the blower. Become. When the inspection and repair are completed, the air conditioner is restored by assembling in the reverse order of the above-described work.

  As described above, the present invention separates the fan casing and the air duct with a predetermined distance between the fan casing side air outlet and the air duct inlet fixed to the housing side air outlet, and blows the fan casing. The outlet and the inlet of the air duct are connected by a removable relay air duct, and a wind direction guide is attached in the relay air duct.

  Thus, by removing the relay air duct, the wind direction guide and the blower can be easily pulled out to the front side of the housing, and the blower can be easily inspected and repaired.

  DESCRIPTION OF SYMBOLS 1 ... Housing | casing 2 ... Bottom part, 3 ... Right side cover, 4 ... Left side cover, 5 ... Top cover, 6 ... Suction inlet, 7 ... Housing side outlet, 8 ... Upper panel cover, 9 ... Lower panel cover DESCRIPTION OF SYMBOLS 10 ... Rail, 11 ... Heat exchanger, 12 ... Electric motor, 13 ... Fan casing, 14 ... Fan runner, 15 ... Pulley, 16 ... V belt, 17 ... Rotating shaft, 18 ... Drawer shelf, 19 ... Air duct, DESCRIPTION OF SYMBOLS 20 ... Air guide plate, 21 ... Wind direction guide, 22 ... Relay air duct, 23 ... Drawer opening cover, 24 ... Fixing screw, 25 ... Fan casing side outlet, 26 ... Outlet opening, 27 ... Drawer opening

Claims (6)

A box-shaped housing having an open area for performing maintenance such as inspection and repair on the front surface, a heat exchanger that is arranged inside the housing and exchanges heat with air sent from a suction port, and the housing A drawer shelf that is provided around the middle stage and is pulled out toward the front side of the housing, a fan casing that is attached to the drawer shelf and that blows out air that has been heat-exchanged by the heat exchanger, and a fan runner incorporated in the fan casing A blower, an electric motor that drives the fan runner, a casing-side outlet provided on the upper side of the casing, and the casing-side outlet that sends air blown from the fan casing to the casing-side outlet In a floor-standing type air conditioner equipped with an air duct fixed to the panel and a panel cover that closes an open area of the housing,
The fan casing and the air duct are separated by a predetermined distance between the fan casing side air outlet formed in the fan casing and the air duct inlet fixed to the housing side air outlet. The floor is characterized in that the fan casing side air outlet and the air duct inlet are connected by a detachable relay air duct, and a wind direction guide for reducing pressure loss is attached in the relay air duct. Stationary air conditioner. The floor-standing air conditioner according to claim 1,
The relay air duct is fixed to the fan casing side outlet and the inlet of the air duct by a fixing screw, and the relay air duct is pulled out toward the front side of the housing by removing the fixing screw. Floor-standing air conditioner. The floor-standing air conditioner according to claim 2,
The inlet of the air duct and the fan casing side outlet are formed in a rectangular shape having substantially the same dimensions, and the back portion of the air duct and the rear portion of the fan casing side outlet are arranged to overlap each other, The floor-standing air conditioner characterized in that the gap between the front and side portions of the air duct and the fan casing side air outlet is closed by the relay air duct longer than the length of the gap. The floor-standing air conditioner according to claim 3,
The floor-standing air conditioner is characterized in that a rear portion of the fan casing side air outlet is disposed inside a rear portion of the air duct. The floor-standing air conditioner according to claim 3,
A front opening of the air duct is formed with a drawer opening through which a wind direction guide attached to the relay air duct passes, and the drawer opening is closed by a removable drawer opening lid. Floor-standing air conditioner. The floor-standing air conditioner according to claim 3,
The fan casing side outlet has an air guide plate that secures an appropriate air outlet, and the wind direction guide extends from the air guide plate to the inside of a predetermined length of the air duct so as to increase a flow passage area. A floor-standing air conditioner that extends to reach the back surface of the air duct, and further forms a predetermined gap between both ends of the airflow guide and the side surface of the air duct.

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