JP2011102654A - Duct type air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily perform maintenance work such as maintenance and inspection by making a control board mounted on an electric component box easily detachable, and to easily perform the work by making the control board easily viewable in a state of remaining the control board mounted. <P>SOLUTION: The blower chamber 130 including a fan and a heat exchange chamber 120 including a heat exchanger are installed in an air conditioner body case 110, and an electric component box 140 is disposed at a corner of a suction opening 131 formed on the blower chamber 130 and a side plate 112 of the air conditioner body case 110. The electric component box 140 includes a U-shaped electric component box body case 141, an L-shaped electric component box cover 143 attachable to and detachable from the electric component box body case 141, and a board mounting table 142 disposed between inner sides of two side pieces 141a, 141b of the electric component box body case 141 in a state of closing a side of a top plate 111 of the electric component box body case 141, being attachable and detachable by applying a drop-in system, and obliquely disposed so that a depth end is separated from the top plate 111 with respect to a front end. The control board 144 is mounted on an inner face of the board mounting table 142. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a duct-type air conditioner that is improved for an electrical component box.

  The conventional duct type air conditioner is configured, for example, as shown in FIGS. 10 and 11 (see, for example, Patent Document 1). FIG. 10 shows a state in which the air conditioner 200 is suspended and supported with respect to the ceiling in a horizontal position, and FIG. The air conditioner 200 is divided into a heat exchange chamber 210 and a blower chamber 220 via a partition plate. In FIG. 10, the lower surface inside the blower chamber 220 is exposed (that is, the filter, the lower surface plate, and the lid of the electric component housing portion are removed). The air is sucked in from the lower surface (or suction duct) of the blower chamber 220, and after being heat-exchanged with the refrigerant in the heat exchange chamber 210, is blown out from the side surface and blown out into the room by a blow-out duct (not shown).

  In the blower chamber 220, an electrical component storage unit 240 is disposed at one end of the fan casing 230. The electrical component housing portion 240 is composed of a sheet metal box 241 and a lid 242 that closes the surface of the box 241 on the side of the fan casing 230 at an angle. The interior is mounted with an electrical component mounting portion 243 and a terminal block. It is divided into parts 244. A control board 245 on which electrical components are mounted is mounted on the electrical component mounting portion 243, and a terminal block fixing plate 247 provided with a terminal block 246 is mounted on the terminal block mounting portion 244. The terminal block fixing plate 247 is installed obliquely corresponding to the lid body 242, and the terminal block 246 is mounted on the oblique outer surface.

  Therefore, in this air conditioner 200, the terminal block 246 is exposed to the lower surface in an oblique posture by removing the lower surface plate and filter (not shown) of the blower chamber 220 and further removing the lid 242 of the electric component housing portion 240. Therefore, it is easy to connect various wires to the terminals of the terminal block 246 from below the air conditioner 200.

JP 2006-343083 A

  However, in the air conditioner 200 described with reference to FIGS. 10 and 11, even if the lid 242 is removed, the electrical component mounting portion 243 is not sufficiently exposed, and there is a portion hidden by the terminal block mounting portion 244, and Since the side plate 250 is in the immediate vicinity, there is a problem that it is difficult to perform maintenance work such as maintenance / inspection on the control board 245 mounted there.

  It is an object of the present invention to make it easy to perform maintenance work such as maintenance and inspection by making it possible to attach and detach a control board to be mounted on an electrical component box, and to make it easy to see the control board even when it is mounted. It is to provide a duct type air conditioner.

In order to achieve the above-mentioned object, the invention according to claim 1 is a duct type air conditioner for both vertical installation and horizontal installation. An exchange chamber is built in, and an electrical component box is arranged at a corner of the suction port provided in the blower chamber and one side plate of the air conditioner main body case, and the electrical component box is U-shaped. The one side piece of the two side pieces facing each other in the U-shape is parallel to the suction port, and the U-shaped rear piece is disposed in the blower chamber interior. An electrical box main body case that is bent in an L shape so as to cover a surface that continues to the one side plate of the air conditioner main body case and a surface that continues to the bottom plate of the air conditioner main body case Electrical component box cover detachable from the case and front The inner end of the electrical component box body case is detachable in a plug-in form so that the top plate side of the electrical component box body case is closed between the two facing side pieces of the electrical component box body case. The board mounting base is mounted so as to be separated from the top plate, and the control board is attached to the inner surface of the board mounting base.
According to a second aspect of the present invention, in the duct type air conditioner according to the first aspect, a cut and raised piece is formed inside each of the two facing side pieces of the electrical component box body case, and the substrate The mounting base is characterized in that it can be freely attached and detached in the plug-in form by guiding the edges on both sides thereof to the cut and raised pieces.
According to a third aspect of the present invention, in the duct type air conditioner according to the first or second aspect, the board mounting base is a reinforcement formed by bending the front and rear edges in the insertion direction into the electrical component box body case. It has a flange.
According to a fourth aspect of the present invention, in the duct type air conditioner according to the third aspect, the board mounting base is a reinforcing flange at a leading edge in a direction of insertion into the electrical component box body case in the reinforcing flange. A notch for escaping from the cut and raised piece is formed on both sides of the plate.

  According to the present invention, the board mounting base is detachable from the electrical component box body case in a plug-in form, so that the control board can be maintained and inspected by removing the board mounting base, and the maintenance workability is improved. Will improve. In addition, the control board is mounted with an inclination so that the far end is farther away from the top plate than the front end, so removing the electrical component box cover makes it easier to see from the outside even in the mounted state. Improves. Furthermore, since the control board is mounted with an inclination, the control board can be increased in size.

It is a perspective view of the horizontal installation attitude | position of the duct type air conditioner of a present Example. It is a perspective view of the vertical installation attitude | position of the duct type air conditioner of a present Example. It is an exploded view of the electrical component box and its surroundings in the horizontal orientation of the duct type air conditioner of the present embodiment. It is a perspective view of the electrical component box of the duct type air conditioner of a present Example. It is explanatory drawing of attachment or detachment of the board | substrate mounting base of the electrical component box of the duct type air conditioner of a present Example. FIG. 5 is a perspective view of the electrical component box in a state where the board mounting base is removed in FIG. 4. It is the fragmentary perspective view which removed the electrical component box cover in the vertical installation attitude | position of the duct type air conditioner of a present Example. It is the fragmentary perspective view which removed the electrical component box cover in the horizontal installation attitude | position of the duct type air conditioner of a present Example. It is a fragmentary perspective view of the example which uses the spacer in the vertical installation attitude | position of the duct type air conditioner of a present Example. It is a perspective view of the state suspended in the horizontal attitude | position of the duct type air conditioner of a prior art example. It is a perspective view which shows the vicinity of the electrical component accommodating part which reversed the top and bottom of the duct type air conditioner of FIG.

  FIG. 1 shows a horizontal posture of the duct type air conditioner 100 according to the embodiment of the present invention, and FIG. 2 shows a vertical posture. An air conditioner main body case 110 includes a top plate 111, side plates 112 and 113, and a bottom plate 114. The interior of the air conditioner main body case 110 is partitioned into a heat exchange chamber 120 and a blower chamber 130 by a partition plate (not shown), and the heat exchange chamber 120 has a heat exchanger (not shown) and an outlet 121. Etc., and the fan chamber 130 is provided with a suction port 131, a funking 132 (see FIG. 3) containing a fan, and the like. A blower duct (not shown) and a suction duct (not shown) are connected to the blower outlet 121 and the suction inlet 131 according to the installation state. An electrical component box 140 is incorporated in a corner between one side plate 112 and the suction port 131. That is, the corners are constituted by the electrical component box 140. The side plate 112 is formed with a notch 112a for the electrical component box 140 to be positioned.

  As shown in FIGS. 3 and 4, the electrical component box 140 includes an electrical component box main body case 141 that is bent in a U-shape, and a board mounting that is inclined and inserted into the top surface of the electrical component box main body case 141. It is detachably attached to the base 142 and the electrical component box main body case 141 and is surrounded by an L-shaped electrical component box cover 143.

  The electrical component box main body case 141 includes side pieces 141a and 141b facing each other, and a back piece 141c that continues the side pieces 141a and 141b on the back side, and the side piece 141b is on the surface of the suction port 131 (see FIG. 1). It becomes a continuous surface and is attached to the blower chamber 130 so that the back piece 141c enters the blower chamber 130 (see FIG. 2). In addition, a hanging bracket fixing portion for attaching the hanging bracket 150 to the bent piece 141b1 formed at the front end portion of the side piece 141b of the electrical component box body case 141 so as to be a surface continuous with the surface of the side plate 112. 141d is formed.

  The electrical component box cover 143 includes a front piece 143a that covers the front surface (the surface continuous to the side plate 112) of the electrical component box 140, and a bottom piece 143b that covers the lower surface (the surface continuous to the bottom plate 114) of the electrical component box 140. The front piece 143a is formed with a notch 143a1 for exposing the hanging bracket fixing portion 141d of the electrical component box body case 141 to the outside.

  Then, the upper and lower portions of the left and right ends of the front piece 143a of the electrical component box cover 143 are arranged at the front end portion of the bent piece 141a1 at the front end portion of the one side piece 141a and the other side piece 141b of the electrical component box body case 141. The left and right portions of the tip of the bottom piece 143b are fixed to the end 114a (see FIGS. 7 and 8) of the bottom plate 114 of the air conditioner main body case 110 with screws. Thus, the surface continuing to the side plate 112 and the surface continuing to the bottom plate 114 of the electrical component box 140 are closed to the outside.

  In addition, in the bent piece 111a to the one side plate 112 side and the bent piece (not shown) to the other side plate 113 side in the top plate 111, a hanging fitting fixing part 111b for attaching the hanging fitting 150 is provided. Each is formed in two places.

  The electrical component box 140 of this embodiment is incorporated in the corner of the blower chamber 130 together with a suction port 131, a fan casing 132 with a built-in fan, and the like, and the electrical component box main body case 141 is shown in FIG. 4 and 6, the assembly is performed by closing the front surface (surface continuous with the side plate 112) and the lower surface (surface continuous with the bottom plate 114).

  When the air conditioner 100 is set to the horizontal posture, the hanging bracket 150 is attached to the top plate 111 with screws via the side plates 112 and 113 as shown in FIG. And it hangs and installs by fixing to the four volt | bolts (not shown) suspended from the ceiling with the suspension metal fitting 150.

  Further, when the air conditioner 100 is placed in a vertical position, as shown in FIGS. 2 and 3, on the side of the side plate 112, one hanging bracket 150 is screwed to the top plate 111 via the side plate 112. The remaining one hanging bracket 150 is directly attached to the hanging bracket fixing portion 141d of the electrical component box body case 141 with a screw while avoiding the electrical component box cover 143. And it attaches in the ceiling etc. with a vertical attitude | position by this suspension metal fitting 150. FIG.

  As shown in FIGS. 3 and 4, the board mounting base 142 inserted into the electrical component box 140 has a control board 144 mounted on the inner surface (lower surface) side. As shown in FIG. 5, the electrical component box main body case 141. Cut and raised pieces 141e and 141f formed obliquely inside the left and right side pieces 141a and 141b of 141, guide the edges on both sides of the board mounting base 142, and the tips are the back pieces of the electrical component box body case 141. By inserting until it hits 141c, the back end is inclined so as to be farther from the top plate 111 than the front end, and in FIG. 3 and FIG. 4, the back surface is directed to the front surface (front side). Thereby, the control board 143 attached to the back surface also inclines and faces the front surface (front side). As shown in the enlarged view of FIG. 5, one of the cut and raised pieces 141f includes cut and raised portions 141f1 and 141f2 and a slit 141f3 formed between the cut and raised portions 141f1 and 141f2. The side edges of the table 142 are guided. The other cut-and-raised piece 141e is not shown in the enlarged view, but is the same.

  As shown in FIG. 5, reinforcing flanges 142a and 142b are formed on the board mounting base 142 by bending downward on the front end side and the rear end side in the insertion direction to the electrical component box body case 141. Yes. Notches 142a1 are formed at both ends of the front-end reinforcing flange 142a so that the reinforcing flange 142a does not get in the way when being guided by the cut and raised pieces 141e and 141f of the electrical component box body case 141. . The board mounting base 142 is fixed without screwing and is prevented from being pulled out by screwing the reinforcing flange 142a to the back piece 141c of the electrical equipment box body case 141 and attaching the electrical equipment box cover 143.

  The board mounting base 142 functions as a beam for maintaining the distance between the upper portions in FIGS. 3 to 6 of both side pieces 141a and 141b of the electrical component box body case 141 by being incorporated in the electrical component box body case 141. To do. Although there is no beam for maintaining the distance between the lower portions of the side pieces 141a and 141b in FIGS. 3, 4 and 6, the function of the beam of that portion is exhibited by mounting the board mounting base 142 obliquely. Can do.

  In this way, the board mounting base 142 can be easily attached to the electrical component box 140 together with the control board 144, the electrical component box cover 143 is removed, and the screw fastening to the back piece 141c of the reinforcing flange 142a is removed. Therefore, it can be easily removed by pulling it out along the cut and raised pieces 141e and 141f. In addition, since the board mounting base 142 covers the upper side of the electrical component box 140 in an inclined state, the control board 144 attached to the back surface thereof can be easily seen from the outside simply by removing the electrical component box cover 143.

  FIG. 7 shows a part of the electrical component box 140 from which the electrical component box cover 143 and the hanging bracket 150 are removed when the air conditioner 100 is vertically arranged. FIG. 8 shows a portion of the electrical component box 140 from which the electrical component box cover 143 is removed when the air conditioner 100 is horizontally arranged and looked up from below. Thus, in either case of horizontal arrangement or vertical arrangement, the control board 144 can be easily seen from the outside, and workability with respect to the control board 144 in maintenance or the like is improved. Moreover, since it mounts | wears with inclination, the control board 144 can be enlarged.

  Inside the electrical component box 140, inside the one side piece 141b of the electrical component box main body 141, a terminal block mounting base 145 is in a cantilevered form as shown in FIG. 3, FIG. 4, and FIG. Inclined so as to face downward, and is attached by screwing. This terminal block mounting base 145 is formed with a reinforcing flange 145a by bending both end portions, and the central portion is bent so that the ridge line 145b faces outward at a slight angle. A terminal block 146 is attached to the attachment surface 145c. That is, the terminal block mounting base 145 has the terminal block mounting surface 145c facing the surface continuous with the side plate 112 of the air conditioner main body case 110 and facing the surface continuous with the bottom plate 114 of the air conditioner main body case 110, and The electrical component box body case 141 is attached so as to face the side piece 141a. A power cord, a ground wire, etc. are connected to the terminal block 146 (not shown).

  Therefore, when the electrical component box cover 142 is removed, the terminal block 146 faces the surface continuous to the bottom plate 114 of the air conditioner main body case 141 and faces the surface continuous to the side plate 112, and the electrical component box main body case 141. Since it faces the side piece 141a, when the air conditioner 100 is arranged vertically, it is exposed to the outside obliquely upward as shown in FIG. 7, and is easy to see from the upper side of the bottom plate 114 and the upper side of the side plate 112 of the air conditioner 100. Become. Further, when it is disposed horizontally, it is exposed to the outside obliquely downward as shown in FIG. 8, so that it is easy to see from the lower side of the bottom plate 114 of the air conditioner 100. Therefore, workability for the terminal block 146 for maintenance or the like is improved. Further, since the terminal block mounting base 145 is cantilevered by the side piece 141b of the electrical component box body case 141, a relatively large space is formed between the terminal piece mounting base 145 and the back piece 141c. It is possible to mount an electrical component such as a relatively large transformer 147 (see FIGS. 6 and 8, etc.) on the inside.

  In addition, when the air conditioner 100 cannot be directly fixed to the floor when the air conditioner 100 is vertically arranged, the floor bracket attachment 160 is replaced with the side plates 112 and 113 or the electrical equipment as shown in FIG. It is attached to the product box 140 (however, only the side plate 112 side is shown in FIG. 9), the spacer 170 is attached by the floor bracket attachment 160, and the air conditioner 100 is attached to the floor by the spacer 170. That's fine.

100: Duct type air conditioner 110: Air conditioner main body case, 111: Top plate, 111a: Bending piece, 111b: Hanging bracket fixing part, 112: Side plate, 112a: Notch, 113: Side plate, 114: Bottom plate, 114a: End portion 120: Heat exchange chamber 121: Air outlet 130: Blower chamber 131: Suction port 132: Fan casing 140: Electrical component box 141: Electrical component box body case 141a, 141b: Side piece 141a1 , 141b1: bent piece, 141c: back piece, 141d: hanging bracket fixing part, 141e, 141f: cut and raised piece, 142: board mounting base, 142a, 142b: reinforcing flange, 142a1: notch, 143: electrical component box Cover, 143a: front piece, 143a1: notch, 143b: bottom piece, 144: control board, 145: terminal block mounting base, 145a: reinforcing flange, 1 45b: Ridge line, 145c: Terminal block mounting surface, 146: Terminal block, 147: Transformer 150: Hanging bracket 160: Floor bracket mounting fixture 170: Spacer 200: Duct type air conditioner 210: Heat exchange chamber 220: Blower chamber 230: Fan casing 240: electrical component housing unit, 241: box, 242: lid, 243: electrical component mounting unit, 244: terminal board mounting unit, 245: control board, 246: terminal block

Claims (4)

In the duct type air conditioner for both vertical installation and horizontal installation,
The air conditioner main body case incorporates a fan room equipped with a fan and a heat exchange room equipped with a heat exchanger, and a corner between a suction port provided in the fan room and one side plate of the air conditioner main body case An electrical component box is placed in the corner,
The electrical component box is folded into a U-shape, and one side piece of the two facing side pieces of the U-shape is parallel to the suction port, and the U-shaped back piece is located inside the blower chamber. L-shaped so as to cover an electrical component box main body case arranged so as to be located on the surface, a surface continuous with the one side plate of the air conditioner main body case, and a surface continuous with the bottom plate of the air conditioner main body case An electrical component box cover that is bent into a shape and is detachable from the electrical component box main body case, and a ceiling of the electrical component box main body case between the two side pieces facing each other of the electrical component box main body case. A board mounting base is mounted so as to be detachable in a plug-in form so as to close the side of the board, and the rear end is separated from the top plate from the front end, and a control board is provided on the inner surface of the board mounting base. A duct-type air conditioner characterized in that In the duct type air conditioner according to claim 1,
Cut and raised pieces are formed inside each of the two facing side pieces of the electrical component box main body case, and the board mounting base is guided by the cut and raised pieces on both sides, A duct-type air conditioner that is detachable in a plug-in format. In the duct type air conditioner according to claim 1 or 2,
The said board mounting base has the reinforcement flange formed by bending at the edge of the front and back of the insertion direction to the said electrical component box main body case, The duct type air conditioner characterized by the above-mentioned. In the duct type air conditioner according to claim 3,
The board mounting base is formed with notches for escaping from the cut and raised pieces on both sides of the reinforcing flange at the front edge in the insertion direction to the electrical component box body case in the reinforcing flange. Features a duct-type air conditioner.

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