JP2016223666A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner eliminating such preparation that in order to remove a drain pump or a float switch, wiring extends.SOLUTION: A pipeline opening 92 closed by a pipeline lid is formed on a left side surface plate 10A4. An electric component box 80 is arranged so as to locate an electric component box lid next to the pipeline opening 92. wirings 101-102 drawn from the opening of the electric component box 80 are arranged so as to be led in the pipeline opening 92 through the outside of the left side surface plate 10A4. The wirings 101-102 arranged outside the left side surface plate 10A4 cover to the outside by the pipeline lid and the electric component box lid.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an air conditioner.

  As a duct type air conditioner 200A which is a kind of air conditioner, for example, as shown in FIG. 10, a hanging hook 3 of the duct type air conditioner 200A is provided between an indoor ceiling plate 1 and a building ceiling wall 2. There is one that attaches the duct type air conditioner 200A by suspending with the suspension bolt F1.

  The duct-type air conditioner 200A includes a rectangular parallelepiped casing 10 made of sheet metal, an air suction port 11 is formed on the rear surface of the casing 10, and an air outlet 12 is formed on the front surface. And in the air flow path 13 which connects the air suction inlet 11 and the air blower outlet 12, the heat exchanger 20 is arrange | positioned at the air blower outlet 12 side, and the ventilation fan 30 is each arrange | positioned at the air suction inlet 11 side. Yes.

  The air suction port 11 is connected to a suction grill 2A attached to the ceiling plate 2 via a suction duct 4A. The air outlet 12 is connected to an outlet grill 2B attached to the ceiling board 2 via an outlet duct 4B.

  11 and 12 show the internal configuration of the duct type air conditioner 200A. The housing 10 is configured in a rectangular parallelepiped shape by combining a housing 10A for a heat exchanger and a housing 10B for a blower fan with a partition plate 14 communicating with an air flow passage 13 interposed therebetween.

  A housing 10A for a heat exchanger is formed in a hollow shape by a top plate 10A1 forming a top surface, a bottom plate 10A2 forming a bottom surface, a right side plate 10A3 forming a right side surface, and a left side plate 10A4 forming a left side surface. An air outlet 12 is formed on the front surface, and a heat exchanger 20 is disposed inside. And the heat insulating material 30 is arrange | positioned at the inner surface of the top | upper surface board 10A1 of the housing | casing 10A, and the drain pan 40 is arrange | positioned at the bottom face board 10A2. A drain pump 60 and a float switch 70 are disposed above the drain pan 40.

  A casing 10B for the blower fan is formed in a hollow shape by a top plate 10B1 that forms a top surface, a bottom plate 10B2 that forms a bottom surface, a right side plate 10B3 that forms a right side surface, and a left side plate 10B4 that forms a left side surface. The air suction port 11 is formed on the rear surface, and the blower fan 50 is disposed inside. A sirocco fan is used as the blower fan 50 and sucks air from the air suction port 11 and blows it out toward the heat exchanger 20 through the air flow passage 13.

  By the way, the wiring of the drain pump 60 and the float switch 70 described above is connected to an electrical component box (not shown) via the inside of the housing 10 or an opening formed in the partition plate 14. As for the drain pump 60, there is one in which a maintenance opening is formed in the left side plate 10A4 and the drain pump 60 is attached to the back side of the maintenance lid that closes the maintenance opening (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 7-1981156

  However, when the drain pump 60 is attached to the back side of the maintenance lid, the wiring must be extended when the drain pump 60 is taken out from the maintenance opening together with the maintenance lid, so that the wiring must be lengthened. When the float switch 70 is pulled out from the maintenance opening, its wiring must be lengthened.

  As described above, conventionally, since the wiring of the drain pump 60 and the float switch 70 is connected to the electrical component box via the inside of the housing, the wiring is provided in case of removing the drain pump, the float switch, or the like. It was necessary to keep it long.

  An object of the present invention is to provide an air conditioner in which it is not necessary to lengthen wiring in preparation for removing a drain pump, a float switch, or the like.

  In order to achieve the above object, the invention according to claim 1 has a top surface, a bottom surface, a right side surface, a left side surface, a front surface and a rear surface, an air outlet is provided on the front surface, and an air suction port on the rear surface. A rectangular parallelepiped housing, a blower fan and a heat exchanger disposed in the housing, a drain pan disposed below the heat exchanger in the housing, and an apparatus for controlling the air conditioner In an air conditioner equipped with an electrical component box in which an opening is incorporated and an opening is closed by an electrical component box lid, a piping opening that is closed by a piping lid is formed on either the right side surface or the left side surface The electrical component box is arranged so that the electrical component box lid is located next to the piping opening, and the wiring drawn from the opening of the electrical component box is connected to the right side surface on which the piping opening is formed or the Open the piping via the outside of the left side. And arranged to be drawn into the wiring, characterized in that covered by the pipe cover and the electrical component box lid.

  The invention according to claim 2 is the air conditioner according to claim 1, wherein a drain pump that discharges the drain water stored in the drain pan, and a float switch that detects a water level of the drain water stored in the drain pan; And the end of the wiring that is drawn into the piping opening is connected to the drain pump and the float switch.

  According to a third aspect of the present invention, in the air conditioner according to the first or second aspect of the present invention, a first wiring cover for positioning the wiring inside is formed on the piping lid, and the wiring is disposed on the electrical component box lid. A second wiring cover positioned inside is formed, the piping opening is closed with the piping lid, and the opening of the electrical component box is closed with the electrical component box lid.

  According to the present invention, the wiring drawn from the opening of the electrical component box is arranged to be drawn into the piping opening via the right side or the left side outside where the piping opening is formed. The wiring is connected to the electrical component box via the outside of the side surface, and it is not necessary to lengthen the wiring in preparation for removing a drain pump, a float switch, or the like. That is, when removing a drain pump, a float switch, etc., it is not influenced by wiring. In addition, since the wiring is covered by the piping lid and the electrical component box lid, the wiring arranged outside the side plate is not affected by the outside.

It is a bottom perspective view of the duct type air conditioner of the example of the present invention. It is a bottom view of the left side plate vicinity of the duct type air conditioner of the Example of this invention. It is a disassembled perspective view of the left side plate vicinity of the duct type air conditioner of the Example of this invention. It is sectional drawing for the attachment description to the maintenance opening of the maintenance 1st cover of the duct type air conditioner of the Example of this invention. It is a disassembled perspective view for the attachment description of the maintenance 2nd cover of the duct type air conditioner of the Example of this invention. It is a side view of the attachment state of the float switch of the duct type air conditioner of the Example of this invention. It is a side view of the attachment state of the float switch of the duct type air conditioner of the Example of this invention. It is explanatory drawing of the wiring between the electrical equipment box and piping part of the duct type air conditioner of the Example of this invention. It is explanatory drawing of the wiring between the electrical equipment box and piping part of the duct type air conditioner of the Example of this invention. It is explanatory drawing which shows the installation structure of the conventional duct type air conditioner. It is explanatory drawing of the internal structure of the conventional duct type air conditioner. It is explanatory drawing of the internal structure which reversed right and left the conventional duct type air conditioner of FIG.

  Hereinafter, the duct type air conditioner 200 of the present embodiment will be described. The same components as those described with reference to FIGS. In this embodiment, as shown in FIGS. 1 and 2 which are views of the duct-type air conditioner 200 as viewed from the lower surface, an electrical component box 80 is attached to the left side of the left side plate 10B4 of the casing 10B for the blower fan. The opening on the side surface of the electrical component box 80 is closed by a removable electrical component box lid 81.

  Further, as shown in FIG. 3, which is a view of a part of the duct-type air conditioner 200 as viewed from the lower surface, the drain pump 60 and the float switch 70 are maintained on the left side plate 10A4 of the housing 10A for the heat exchanger. A maintenance opening 91 for this purpose and a piping opening 92 for drawing out the piping and wiring of the heat exchanger 20 are formed.

  The maintenance opening 91 is sized to be closed by a maintenance first lid 93 to which the drain pump 60 is attached and a maintenance second lid 94 having a shape smaller than the maintenance first lid 93. The maintenance first lid 93 and the maintenance second lid 94 constitute a maintenance lid. On the upper side (lower side in FIG. 3) of the maintenance opening 91, a rib 91a bent inward is formed, and the guide is bent so as to protrude outward at two places on the upper part (lower part in FIG. 3) of the rib 91a. A piece 91b is formed.

  A guide recess 92a for guiding the liquid pipe 21 of the heat exchanger 20, a guide recess 92b for guiding the gas pipe 22 of the heat exchanger 20, and guide recesses 92c and 92d for guiding the wiring are formed in the pipe opening 92. . As will be described later, the upper portion (lower portion in FIG. 3) of the maintenance opening 91 is closed by the maintenance first lid 93, and the lower portion (upper portion in FIG. 3) of the maintenance opening 91 is closed by the maintenance second lid 94. The pipe opening 92 is closed with a pipe lid 95. Reference numeral 96 denotes a pipe lid to which the float switch 70 is attached.

  The maintenance first lid 93 is formed with a guide hole 93a that engages with the guide piece 91b of the maintenance opening 91 at the upper end (lower end in FIG. 3), and above the guide hole 93a (lower in FIG. 3). Ribs 93b are formed on the side. The maintenance second lid 94 is formed with a positioning piece 94a at one end thereof (the left end in FIG. 3).

  As shown in FIG. 1, the pipe lid 95 includes a guide convex portion 95 a for guiding the positioning piece 94 a of the maintenance second lid 94 inward, a guide concave portion 95 b for guiding the liquid pipe 21, and the gas pipe 22. A guide recess 95c for guiding, a guide recess 95d for positioning the drain plug 41 attached to the drain pan 40, and a wiring cover 95e for covering the wiring inserted inside are formed.

  As shown in FIG. 3, the drain pump 60 is attached to the inside of the maintenance first lid 93 so that the suction port 61 faces the lower side (upper side in FIG. 3). The drain pipe 62 of the drain pump 60 is attached so as to communicate with the drain pipe 63 attached to the maintenance first lid 93.

  An electrical component box cover 81 that closes the electrical component box 80 is formed with a wiring cover 81a having a size and shape that overlaps the wiring cover 95e of the piping lid 95 from the outside.

  As shown in FIGS. 6 and 7, the float switch 70 includes a float 71, a switch body 72 in which a switch that operates when the float 71 moves up and down, and a mounting piece 73 for mounting the switch body 72. It consists of The float switch 70 is indirectly fixed to the housing 10A by attaching the attachment piece 73 to the screw hole 96a1 of the U-shaped holder 96a attached to the inside of the pipe lid 96 with the screw A1. As shown in FIG. 2, the float switch 70 is disposed further inside the drain pump 60, that is, between the drain pump 60 and the heat exchanger 20.

  FIG. 8 is an explanatory view of wiring 101 of the drain pump 60 and wiring 102 of the float switch 70 to the electrical component box 80. FIG. 9 shows wirings 103 and 104 of the temperature sensor for detecting the piping temperature of the heat exchanger 20 and electronic expansion. It is explanatory drawing which wires the wiring 105 of a valve to the electrical component box 80. FIG.

  The wiring 101 of the drain pump 60 is connected from the drain pump 60 to the connector 82 in the electrical component box 80 via the guide recess 92c of the pipe opening 92 and the outside of the left side plate 10A4. The wiring 102 of the float switch 70 is also connected from the float switch 70 to the connector 83 in the electrical component box 80 via the guide recess 92c of the pipe opening 92 and the outside of the left side plate 10A4.

  The temperature sensor wires 103 and 104 are connected to the connector 84 in the electrical component box 80 via the guide recess 92d of the pipe opening 92 and the outside of the left side plate 10A4. The wiring 105 of the electronic expansion valve is also connected to the connector 84 in the electrical component box 80 via the guide recess 92d of the pipe opening 92 and the outside of the left side plate 10A4. The temperature sensor and the electronic expansion valve are not shown because they are not directly related to the present invention.

  When assembling the left side plates 10A4 and 10B4 of the air conditioner, first, the wires 101 to 105 are connected to the drain pump 60, the float switch 70, the temperature sensor, the electronic expansion valve, etc. as described with reference to FIGS. And wiring between the connectors 82 to 85 of the electrical component box 80 via the recesses 92c and 92d of the pipe opening 92 and the outside of the left side plate 10A4.

  Next, the drain pump 60 is attached to the inside of the maintenance first lid 93 as shown in FIG. The holder 96 a for attaching the float switch 70 is attached to the inside of the pipe lid 96 so that the screw hole 96 a 1 can be seen from outside the maintenance opening 91. In this state, the mounting piece 73 of the float switch 70 is screwed into the screw hole 96a1 with the float 71 facing downward (upward in FIG. 7) using a screwdriver from the outside of the maintenance opening 91. By doing so, it attaches to the holder 96a. Accordingly, the float switch 70 is positioned at a height at which the contact point is switched by the float 71 when the drain water is stored in the drain pan 40 up to the amount just before overflowing from the drain pan 40.

  Thus, when the drain pump 60 is removed from the maintenance opening 91 together with the maintenance first lid 93, the float switch 70 can be attached and detached from the outside of the maintenance opening 91. There is no need to remove or provide a special maintenance opening for maintaining the float switch 70.

  Next, the drain pump 60 is inserted into the maintenance opening 91 from the state shown in FIG. 3 while being attached to the maintenance first lid 93. At this time, even if the height of the drain pump 60 is larger than the vertical interval of the opening of the maintenance opening 91, the suction port 61 of the drain pump 60 falls down in the direction of the maintenance opening 91 in FIG. By tilting the maintenance first lid 93, the drain pump 60 can be easily inserted inside the maintenance opening 91.

  Then, as shown in FIG. 4, if the maintenance first lid 93 is pressed against the maintenance opening 91 so that the guide piece 91 b formed in the maintenance opening 91 is inserted into the guide hole 93 a of the maintenance first lid 93. The maintenance first lid 93 is accurately positioned with respect to the maintenance opening 91. Therefore, when the upper part (lower part in FIG. 3) of the maintenance first lid 93 is tightened to the upper part (lower part in FIG. 3) of the left side plate 10A4 with the screw B1, the state shown in FIG. 5 is obtained. That is, the upper part (lower part in FIG. 3) of the maintenance opening 91 is closed by the maintenance first lid 93. Accordingly, the suction port 61 of the drain pump 60 is close to the drain pan 40.

  Next, a pipe lid 95 is attached to the pipe opening 92 with a screw C1 as shown in FIGS. 1 and 2, and the pipe opening 92 is closed. Thus, the guide convex portion 95a of the pipe lid 95 is in the vicinity of the maintenance opening 91, the guide concave portion 95b is in the lower portion of the liquid pipe 21, the guide concave portion 95c is in the lower portion of the gas pipe 22, and the guide concave portion 95d is in the upper portion of the drain plug 41. Respectively. Further, the wiring cover 95 e of the pipe lid 95 is located in the vicinity of the electrical component box 80. At this time, a part of the wirings 101 to 105 is covered by the wiring cover 95e.

  Next, as shown in FIG. 5, the maintenance second lid 94 is positioned by inserting the positioning piece 94 a of the maintenance second lid 94 into the guide convex portion 95 a of the pipe lid 95. When the maintenance second lid 94 is tightened against the left side plate 10A4 with the screw D1, the remaining portion of the maintenance opening 91 is also closed by the maintenance second lid 94. As a result, as shown in FIG. 1, the maintenance opening 91 is completely closed by the maintenance first lid 93 and the maintenance second lid 94.

  Finally, if the electrical component box cover 81 is attached with the screw E1 so that the wiring cover 81a overlaps the wiring cover 95e of the piping cover 95, finally, as shown in FIG. The left side is assembled.

  At this time, the wirings 101 to 105 are completely covered and protected by the wiring cover 95e of the piping lid 95 and the wiring cover 81a of the electrical component box lid 81, so that they are not affected by the outside.

  Further, since the wirings 101 to 105 are connected to the terminals 82 to 85 of the electrical component box 80 via the outside of the left side plate 10A4, the wirings 101 to 105 are connected in preparation for removing the drain pump 60 and the float switch 70. There is no need to lengthen the terminals, and there is no need to remove the terminals on the electrical component box 60 side of the wirings 101 to 105 from the connector. That is, when removing the drain pump 60 and the float switch 70, the influence of wiring is not received.

  Moreover, in the assembled state as described above, the maintenance second lid 94 can be detached independently by loosening the screw D1. If the maintenance second lid 94 is removed, the lower part of the maintenance opening 91 opens as shown in FIG. Therefore, in the trial operation, it is possible to confirm whether or not the drain water of the drain pan 40 is normally sucked up by the drain pump 60 by looking into the inside from the lower part of the maintenance opening 91. During normal operation, the dirty state of the drain pan 40 can be confirmed.

  In addition, the maintenance opening 91 and the maintenance first lid 93 and the maintenance second lid 94 that close the maintenance opening 91 are located directly below the suspension hook 3 (directly above in FIGS. 1 and 5) as shown in FIGS. When the entire duct type air conditioner 200 is suspended from the building ceiling 1 as described with reference to FIG. 10 by inserting the suspension bolt F1 into the suspension hook 3, the lower end of the suspension bolt F1. Is positioned in front of the maintenance first lid 93 and the maintenance second lid 94.

  However, even in this case, the maintenance second lid 94 can be removed, and then the maintenance first lid 93 can be removed and tilted downward (upward in FIGS. 1 and 5) to be taken out together with the drain pump 60. is there. Further, it is possible to remove the float switch 70. As described above, even when the duct-type air conditioner 200 is normally installed, the drain pump 60 and the float switch 70 can be replaced as they are.

  In the above embodiment, the drain pump 60 and the float switch 70 are arranged inside the left side plate 10A4 of the housing 10A, and the electrical component box 80 is arranged outside the left side plate 10B4 of the housing 10B. Even when the drain pump 60 and the float switch 70 are arranged inside the right side plate 10A3 of the housing 10A and the electrical component box 80 is arranged outside the right side plate 10B3 of the housing 10B, the drain pump 60 and the float switch 70 are configured in the same manner as in the above embodiment. Can do.

1: building ceiling wall 2: indoor ceiling plate, 2A: suction grille, 2B: blowout grille 3: suspension hook 10: housing 10A: housing for heat exchanger, 10A1: top plate, 10A2: bottom plate, 10A3: Right side plate, 10A4: left side plate 10B: housing for blower fan, 10B1: top plate, 10B2: bottom plate, 10B3: right side plate, 10B4: left side plate 11: air inlet, 12: air outlet, 13: air Flow path, 14: Partition plate 20: Heat exchanger, 21: Liquid pipe, 22: Gas pipe 30: Insulating material 40: Drain pan, 41: Drain plug 50: Blower fan 60: Drain pump, 61: Suction port, 62: Drain pipe, 63: Drain pipe 70: Float switch, 71: Float, 72: Switch body, 73: Mounting piece 80: Electrical component box, 81: Electrical component box lid, 81a: Wiring cover, 82 to 85 : Connector 91: Maintenance opening, 91a: Rib, 91b: Guide piece 92: Pipe opening, 92a-92d: Guide recess 93: Maintenance first lid, 93a: Guide hole, 93b: Rib 94: Maintenance second lid, 94a: Positioning piece 95: Piping lid, 95a: Guide convex portion, 95b to 95d: Guide concave portion, 95e: Wiring cover 96: Piping lid, 96a: Holder, 96a1: Screw hole 101-105: Wiring A1, B1, C1, D1, E1: Screw F1: Suspension bolt

Claims (3)

A rectangular parallelepiped housing having a top surface, a bottom surface, a right side surface, a left side surface, a front surface, and a rear surface, and having an air outlet on the front surface and an air suction port on the rear surface, and disposed in the housing The blower fan and the heat exchanger, the drain pan disposed below the heat exchanger in the housing, and the devices for controlling the air conditioner are incorporated therein, and the opening is closed by the electrical component box lid In an air conditioner equipped with a product box,
Forming a pipe opening that is closed with a pipe lid on either the right side surface or the left side surface, and arranging the electrical component box so that the electrical component box lid is located next to the pipe opening, The wiring drawn out from the opening of the electrical component box is arranged so as to be drawn into the piping opening via the right side or the outside of the left side where the piping opening is formed, and the wiring is connected to the piping lid and the An air conditioner covered with an electrical component box lid. In the air conditioner according to claim 1,
A drain pump that discharges drain water stored in the drain pan; and a float switch that detects a water level of the drain water stored in the drain pan, and an end portion of the wiring that is drawn into the pipe opening has the drain An air conditioner connected to a pump and the float switch. In the air conditioner according to claim 1 or 2,
Forming a first wiring cover for positioning the wiring on the piping lid; forming a second wiring cover for positioning the wiring on the electrical component lid; and opening the piping opening with the piping lid. The air conditioner is characterized by closing and closing the opening of the electrical component box with the electrical component box lid.

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