JP2016095075A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner including an electric component box that allows guide flanges of an electric component box lid to be correctly and easily positioned with respect to body side plates of an electric component box body when this work is performed.SOLUTION: An electric component box 80 comprises an electric component box body 81 and an electric component box lid 82. The electric component box body 81 comprises a bottom plate 81a and body side plates 81b and 81c. The electric component box lid 82 comprises a top plate 82a, lid side plates 82b and 82c, and guide flanges 82d and 82e. The guide flanges 82d and 82e comprise inclined tip parts 82d3 and 82e3 inclined outward in order to guide tip parts 81b1 and 81c1 of the body side plates 81b and 81c of the electric component box body 81.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioner having an electrical component box.

  FIG. 6 shows a conventional indoor unit of an air conditioner. This indoor unit includes a front plate 10 having an air outlet (not shown), a back plate 20 having an air inlet 21, a left side plate 30, a right side plate 40, a top plate (not shown), and a bottom plate 50. A casing 100 of the indoor unit is formed, and a fan device 60 and a heat exchanger 70 are disposed in an air passage between the air outlet of the front plate 10 and the air suction port 21 of the rear plate 20. Specifically, the fan device 60 is disposed inside the air outlet of the front plate 10, and the heat exchanger 70 is disposed inside the air suction port 21 of the rear plate 20. A rectangular parallelepiped electrical component box 80 </ b> A is attached to the outer surface of the left side plate 30.

  The electrical component box 80A has a rectangular parallelepiped shape by closing a metal electrical component box main body 81 to which a substrate 90 on which electronic components are mounted is attached at the bottom facing the left side plate 30, and an opening of the electrical component box main body 81. A metal electrical component box lid 83 is formed.

  FIG. 7 shows details of the electrical component box 80A. The electrical component box main body 81 includes a rectangular bottom plate 81a to which a substrate 90 (illustrated in FIG. 6) on which the electrical component is mounted becomes a bottom surface of the electrical component box 80A, and a vertical direction in the same direction from two opposite sides of the bottom plate 81a. A pair of main body side plates 81b and 81c which are one pair of opposing side surfaces of the electrical component box 80A are provided. In addition, a pair of mounting flanges 81d and 81e for mounting the electrical component box lid 82 are provided between one end and the other end of the bent portions of the pair of main body side plates 81b and 81c. Yes.

  The electrical component box lid 83 is a rectangular ceiling plate 83a that is the top surface of the electrical component box 80A, and the other opposite side of the electrical component box 83 that is vertically erected in the same direction from two opposite sides of the top plate 83a. A pair of lid side plates 83b and 83c serving as a pair of side surfaces is provided. Further, a space S2 corresponding to the thickness of the front end portions 81b1 and 81c1 of the main body side plates 81b and 81c is formed in the same direction as the lid side plates 83b and 83c from two opposite sides where the lid side plates 83b and 83c of the top plate 83a are not formed. Guide flanges 83d and 83e formed by being bent at right angles in such a manner, a mounting flange 83f formed by bending the front end portion of the lid side plate 83b outward, and a mounting formed by bending the front end portion of the lid side plate 83c outward. A flange 83g is provided.

  A cable insertion plate 84 for drawing a cable into the electric component box 80A is provided on one main body side plate 81b of the electric component box main body 81 on the side close to the mounting flange 81d. Also, one guide flange 83d of the electrical component box lid 83 is provided with a cut-out portion 83d1 that is cut out to avoid the cable insertion plate 83 when the electrical component box lid 83 is put on the electrical component box body 81. Yes. The other guide flange 83e of the electrical component box lid 83 is not formed with a cut portion, and is provided from the lid side plate 83b to the lid side plate 83c.

  Now, in order to assemble the rectangular parallelepiped electrical component box 80A by the electrical component box lid 83 and the electrical component box main body 81, three surfaces of the electrical component box 80A are formed by the bottom plate 81a of the electrical component box main body 81 and the main body side plates 81b and 81c. As shown in FIG. 8, the remaining three surfaces of the electrical component box 80A are formed by the top plate 83a and the lid side plates 83b and 83c of the electrical component box lid 83, so as to have a six-sided rectangular parallelepiped shape as a whole. The electrical component box body 81 is covered with an electrical component box lid 83.

  As a result, as shown in FIG. 9, the front end portion 81 b 1 of the main body side plate 81 b of the electrical component box body 81 fits inside the guide flange 83 d of the electrical component box lid 83, and the inner side of the guide flange 83 e of the electrical component box lid 83. The front end portion 81c1 of the main body side plate 81c of the electrical component box main body 81 is fitted in. The cut portion 83d1 of the lid side plate 83c of the electrical component box lid 83 is located at a site where the cable insertion plate 84 is located.

  As described above, since the front end portions 81b1 and 81c1 of the electrical component box body 81 are inserted into the space S2 of the guide flanges 83d and 83e of the electrical component box cover 83, the electrical component box cover 83 is temporarily fixed to the electrical component box body 81. Is done.

  Thereafter, the mounting flange 83f of the electrical component box lid 83 is fixed to the mounting flange 81d of the electrical component box body 81 with the screw A1 (see FIG. 6), and the electrical component box lid 83 is mounted with the screw A2 (see FIG. 6). If the flange 83g is fixed to the mounting flange 81e of the electrical component box main body 81, the attachment of the electrical component box main body 81 with the electrical component box cover 83 to complete the opening is completed.

  The structure for attaching the electrical component box lid to the electrical component box main body as described above is described in FIG.

Japanese Patent Laid-Open No. 11-230568

  However, in the electrical component box 80A described above, the guide flanges 83d and 83e of the electrical component box lid 83 must be accurately aligned with the body side plates 81b and 81c of the electrical component box body 81. It was difficult to attach the product box lid 83 to the electrical component box main body 81. For this reason, as shown in FIG. 10, the guide flange 83d of the electrical component box lid 83 is positioned inside the main body side plate 81b of the electrical component box body 81, or as shown in FIG. The flange 83e may be located inside the main body side plate 81c of the electrical component box main body 81.

  In these cases, attachment of the electrical component box lid 83 to the electrical component box main body 81 becomes defective, and tightening with the screws A1 and A2 cannot be performed. Even when the screws A1 and A2 can be tightened, there is a gap between the electrical component box body 81 and the electrical component box lid 83, so that when an electronic component is ignited in the electrical component box 80, In addition, there is a risk of similar burning around the electrical component box.

  By the way, in addition to attaching the electrical component box lid 83 to the electrical component box main body 81 in the posture of FIG. 7, it is easier to attach the electrical component box lid 83 even when the posture is reversed horizontally. However, when the cable insertion plate 84 is attached to the main body side plate 81b of the electrical component box main body 81, the guide flange 83e becomes an obstacle, and the electrical component box cover 83 is reversed from the posture of FIG. It cannot be attached to the product box body 81.

  The present invention has been made in view of the above points. The purpose of the present invention is to accurately and easily perform the alignment of the guide flange of the electrical component box lid with the main body side plate of the electrical component box body. An air conditioner having an electrical component box is provided, and the electrical component box lid is attached to the electrical component box body in the first posture or in a second posture that is reversed left and right from the first posture. It is to provide an air conditioner equipped with an electrical component box that can be used.

  To achieve the above object, the invention according to claim 1 includes a front plate having an air outlet, a rear plate having an air inlet, a left side plate, a right side plate, a top plate, and a bottom plate. A heat exchanger and a fan device arranged in an air passage connecting the air suction port and the air outlet in a housing, and a rectangular parallelepiped electric device attached to either the left side plate or the right side plate In the air conditioner including the product box, the electrical component box has an electrical component box main body and an electrical component box lid, and the electrical component box main body faces the bottom plate serving as a bottom surface of the electrical component box. It has a pair of main body side plates which are a pair of opposing side surfaces of the electrical component box erected vertically in the same direction from two sides, and the electrical component box lid becomes the top surface of the electrical component box Same direction from two opposite sides of the top plate and the top plate It has a pair of lid side plates that are vertically installed and serve as the other pair of opposing side surfaces of the electrical component box, and the pair of body side plates on the two opposite sides of the top plate where the pair of lid side plates are not erected A pair of guide flanges for guiding each of the guide flanges from the outside is provided, and inclined tip portions formed by bending the guide flanges outwardly are provided at the tips of the pair of guide flanges, respectively. It is characterized by.

  According to a second aspect of the present invention, in the air conditioner according to the first aspect, a cable insertion portion for inserting a cable is provided at one end of the pair of main body side plates, and the pair of guides One of the flanges is provided with an excision part obtained by excising a part where the guide flange covers the cable insertion part when the electric component box cover is attached to the electric component box body.

  According to a third aspect of the present invention, in the air conditioner according to the first aspect, a cable insertion portion for inserting a cable is provided at one end of the pair of main body side plates, and the pair of guides The flange is provided with a cut-off portion in a point-symmetrical position by cutting off a portion of the guide flange covering the cable insertion portion when the electric component box cover is attached to the electric component box main body. To do.

  The invention according to claim 4 is the air conditioner according to claim 2 or 3, wherein the cable insertion portion is a cable insertion hole and a blockage that blocks the cable insertion hole when the cable is not inserted into the cable insertion hole. It has the member.

  According to a fifth aspect of the present invention, in the air conditioner according to any one of the first to fourth aspects, the lengths of the two sides on which the pair of lid side plates of the top plate are provided correspond to each other. The length of the two sides of the bottom plate is shorter than the total thickness of the pair of main body side plates.

  According to the present invention, since the guide flange provided on the electrical component box lid has the inclined tip portion, the guideable range of the guide flange with respect to the tip portion of the side plate of the electrical component box body is widened, and the electrical component box body It is possible to accurately and easily carry out the work when covering the electrical component box lid on.

  Also, when the electrical component box cover is not properly covered on the electrical component box body, the inclined tip of the guide flange will cover the electrical component box cover with a significant displacement from the electrical component box body. It is impossible to close the product box body with the electrical component box lid, and it is possible to easily determine that the operation of covering the electrical component box lid is incorrect.

  In addition, the first and second guide flanges are provided by removing a portion located in the cable insertion portion of the electrical component box body so that the electrical component box lid is in a first posture with respect to the electrical component box body. Even if it is attached or attached in a second posture reversed left and right from the first posture, the cable insertion portion can be avoided.

It is a disassembled perspective view of the electrical equipment box of the air conditioner of the Example of this invention. It is an exploded top view of the electrical equipment box of the air conditioner of the Example of this invention. It is sectional drawing of the normal coupling | bond part of the electrical component box main body and electrical component box cover of the electrical component box of the air conditioner of the Example of this invention. It is sectional drawing of the poor coupling | bond part of the electrical component box main body and electrical component box cover of the electrical component box of the air conditioner of the Example of this invention. It is sectional drawing of the coupling | bond part of the electrical component box main body and electrical component box cover of the electrical component box of the air conditioner of another Example of this invention. It is a disassembled perspective view of the conventional air conditioner. It is a disassembled perspective view of the conventional electrical component box. It is an exploded top view of the conventional electrical component box. It is sectional drawing of the normal coupling | bond part of the electrical component box main body and the electrical component box cover of the conventional electrical component box. It is sectional drawing of the defective coupling | bond part of the electrical component box main body and the electrical component box cover of the conventional electrical component box. It is sectional drawing of the defective coupling | bond part of the electrical component box main body and the electrical component box cover of the conventional electrical component box.

  Hereinafter, the present invention will be described by taking an indoor unit of an air conditioner as an example. However, since the configuration other than the electrical component box is the same as the conventional configuration, the description thereof is omitted here. FIG. 1 is a diagram showing an electrical component box 80 of an indoor unit of an air conditioner according to one embodiment of the present invention. The electrical component box 80 includes a metal electrical component box main body 81 to which a substrate 90 (see FIG. 6) on which electronic components are mounted on the bottom is attached, and a metal electrical component that closes an opening of the electrical component box main body 81. And a product box lid 82.

  The electrical component box main body 81 includes a rectangular bottom plate 81a to which a substrate 90 (illustrated in FIG. 6) on which the electrical component is mounted becomes a bottom surface of the electrical component box 80A, and a vertical direction in the same direction from two opposite sides of the bottom plate 81a. A pair of main body side plates 81b and 81c are provided as a pair of opposing side surfaces of the standing electrical component box 80A. Further, an electrical component box lid 82 is attached between one end (upper side in FIG. 1) and between the other end (lower side in FIG. 1) of the bent portions of the pair of main body side plates 81b and 81c. First and second mounting flanges 81d and 81e are provided.

  Further, the distal end portion 81b1 of the first main body side plate 81b is provided with a cable insertion plate 84 constituting a cable insertion portion for drawing the cable into the electrical component box 80 on the side close to the mounting flange 81d. Yes.

  The cable insertion plate 84 is provided with a cable insertion hole 84a, and a rubber cable closing member 84b in which, for example, a + -shaped notch for inserting the cable is formed in the center portion is attached to the cable insertion hole 84a. When the cable is not inserted, the cable closing member 84b closes the cable insertion hole 84a so that the inside and outside of the electrical component box 80 are blocked.

  The electrical component box lid 82 is vertically arranged in the same direction vertically from two opposing sides of the rectangular top plate 82a and the top plate 82a that are the top surface of the electrical component box 80, and the other pair of opposing electrical component boxes 82 are opposed to each other. It has a pair of lid side plates 82b and 82c serving as side surfaces. Further, guide flanges 82d and 82e formed by bending in the same direction as the lid side plates 82b and 82c from two opposite sides where the lid side plates 82b and 82c of the top plate 82a are not formed, and the distal end portion of the lid side plate 82b are outside. And a mounting flange 82g formed by bending the tip end portion of the lid side plate 82c outward.

  The guide flange 82d extends from the end portion 82a3 of the top plate 82a continuously to the top plate 82a at a right angle so that a space S1 corresponding to the thickness of the front end portions 81b1 and 81c1 of the main body side plates 81b and 81c is formed. Bottom portion 82d1, the rising portion 82d2 bent in the same direction as the first and second lid side plates 82b and 82c from the tip of the first bottom portion 82d1, and the tip of the rising portion 82d2 toward the top plate 82a On the other hand, it is composed of an inclined front end portion 82d3 formed by being obliquely bent outward. Then, on the side of the guide flange 82d close to the lid side plate 82b, the cable insertion plate 84 is avoided when the electrical component box lid 82 is put on the electrical component box body 81 in the first posture (the posture shown in FIG. 1). Therefore, a cut portion 82d4 cut out is provided. The length of the cut portion 82d4 is a length corresponding to the vertical length of the cable insertion plate 84 in FIG.

  The guide flange 82e extends from the end portion 82a4 of the top plate 82a continuously to the top plate 82a at a right angle so that a space S1 corresponding to the thickness of the front end portions 81b1 and 81c1 of the main body side plates 81b and 81c is formed. Bottom part 82e1, the rising part 82e2 bent in the same direction as the first and second lid side plates 82b and 82c from the tip of the second bottom part 82e1, and the tip of the rising part 82e2 toward the top plate 82a On the other hand, it is composed of an inclined front end portion 82e3 formed by being obliquely bent outward. When the electrical component box lid 82 is attached to the electrical component box main body 81 in the second posture that is horizontally reversed from the first posture on the side of the guide flange 82e close to the lid side plate 82c, the cable is inserted. In order to avoid the plate 84, a cut portion 82e4 cut out is provided. The length of the cut portion 82e4 is a length corresponding to the vertical length of the cable insertion plate 84 in FIG. Further, the cut portion 82e4 is provided at a position that is point-symmetric with the cut portion 82d4 of the guide flange 82d.

  The length L2 of each of the two sides where the pair of lid side plates 82b and 82c of the top plate 82a of the electrical component box lid 82 is provided is provided by the body side plates 81b and 81c of the bottom plate 81a of the electrical component box body 81. The length L1 of each of the two sides is shorter than the total thickness of the pair of main body side plates 81b and 81c.

  Now, in order to assemble the rectangular parallelepiped electrical component box 80 by the electrical component box lid 82 and the electrical component box body 81 by the electrical component box lid 82 in the first posture shown in FIG. 1, the bottom plate 81a of the electrical component box body 81 is used. And the main body side plates 81b and 81c form the three surfaces of the electrical component box 80, and the top plate 82a of the electrical component box lid 82 and the lid side plates 82b and 82c form the remaining three surfaces of the electrical component box 80. As shown in FIG. 2, the electrical component box body 81 is covered with an electrical component box lid 82 so as to have a rectangular parallelepiped shape.

  As a result, as shown in FIG. 3, the front end 81b1 of the main body side plate 81b of the electrical component box body 81 is guided inside the guide flange 82d of the electrical component box lid 82, and the inner side of the guide flange 82e of the electrical component box lid 82 The distal end portion 81c1 of the main body side plate 81c of the electrical component box main body 81 is guided. Note that the cable insertion plate 84 of the electrical component box body 81 is located at the cut portion 82d4 of the guide flange 82d, and does not interfere with the mounting of the electrical component box lid 82 to the electrical component box body 81.

  In the operation of pushing the electrical component box cover 82 into the electrical component box body 81 at this time, the body side plates 81b and 81c of the electrical component box body 81 are formed by the inclined tip portions 82d3 and 82e3 of the guide flanges 82d and 82e of the electrical component box cover 82. The front end portions 81b1 and 81c1 are guided between the rising portions 82d2 and 82e2 of the electrical component box lid 82. Therefore, the electrical component box lid 82 is aligned with the front end portions 81b1 and 81c1 of the main body side plates 81b and 81c of the electrical component box main body 81 so that the inclined front end portions 82d3 and 82e3 of the guide flanges 82d and 82e are roughly positioned. Just push in.

  That is, since the guide flanges 82d and 82e have a wide guide range due to the inclined front end portions 82d3 and 82e3, the main body side plate of the electrical component box main body 81 is exactly between the guide flanges 83d and 83e as in the conventional case. It is not necessary to insert the front end portions 81b1 and 81c1 of 81b and 81c, and the work can be performed accurately and easily.

  As described above, the front end portions 81b1 and 81c1 of the body side plates 81b and 81c of the electrical component box body 81 are inserted inside the rising portions 82d2 and 82e2 of the guide flanges 82d and 82e of the electrical component box lid 82. 82 is temporarily fixed to the electrical component box body 81, and thereafter, the electrical component box lid 82 may be fixed to the electrical component box body 81 with screws A1 and A2.

  When the guide flanges 82d and 82e of the electrical component box lid 82 are mounted off the front end portions 81c1 and 81d1 of the main body side plates 81c and 81d of the electrical component box main body 81, as shown in FIG. Since the lid 82 is greatly detached from the electrical component box body 81, it is impossible to close the electrical component box body 81 with the electrical component box lid 82, and an error in the work of covering the electrical component box lid 82 is caused. Can be determined.

  Further, since the electrical component box lid 82 of this embodiment has a cut-out portion 82e4 formed on the guide flange 82e side, the electrical component box lid 82 is horizontally reversed from the first position shown in FIG. Even in the second posture, the electrical component box body 81 can be closed in the same manner without being affected by the cable insertion plate 84.

  FIG. 5 is a view showing another example of guide flanges 82h and 82i. These guide flanges 82h and 82i are formed by bending them outward obliquely from the top plate 82a to form an inclined tip portion, and the operation of closing the electrical component box main body 81 as in the case of the guide flanges 82d and 82e is accurate.・ It becomes easy.

  However, in this case, the temporary fastening force of the electrical component box lid 82 to the electrical component box body 81 may be insufficient. In this case, the electrical component box lid 82 is attached to the electrical component box body by screws A1 and A2. When fixing to 81, it is necessary to press the electrical component box lid 82 against the electrical component box body 81 by hand.

10: front plate, 20: back plate, 30: differential side plate, 40: right side plate, 50: bottom plate, 60: fan device, 70: heat exchanger, 80, 80A: electrical component box 81: electrical component box body 81a: bottom plate, 81b, 81c: main body side plate, 81b1, 81c1: front end, 81d, 81e: mounting flange 82: electrical component box lid, 82a: top plate, 82b, 82c: lid side plate, 82d, 82e: guide flange 82d1, 82e1: Bottom, 82d2, 82e2: Rising part, 82d3, 92e3: Inclined tip, 82d4, 82e4: Cutting part, 82f, 82g: Mounting flange, 82h, 82i: Guide flange 83: Electrical component box lid, 83a : Top plate, 83b, 83c: Cover side plate, 83d, 83e: Guide flange, 83d1: Cut part, 83f, 83g: Mounting flange 84: Cable insertion plug Rate, 84a: cable insertion hole, 84b: blocking member

Claims (5)

A front plate having an air outlet, a rear plate having an air inlet, a left side plate, a right side plate, a top plate and a bottom plate, and an air passage connecting the air inlet and the air outlet in the casing In an air conditioner comprising a heat exchanger and a fan device disposed inside, and a rectangular parallelepiped electrical component box attached to the outer surface of either the left side plate or the right side plate,
The electrical component box has an electrical component box body and an electrical component box lid,
The electrical component box main body is a pair of main bodies serving as a pair of opposing side surfaces of the electrical component box vertically erected in the same direction from two opposite sides of the bottom plate and the bottom plate that are the bottom surface of the electrical component box Have side plates,
The electrical component box lid is a pair of a ceiling plate that is a top surface of the electrical component box and a pair of side surfaces that are vertically opposed in the same direction from two opposite sides of the top plate and that are opposite to the other pair of side surfaces of the electrical component box The lid side plate,
A pair of guide flanges for guiding each of the pair of main body side plates from the outside are provided on the two opposite sides where the pair of lid side plates of the top plate are not erected,
An air conditioner characterized in that inclined tip portions formed by bending the guide flanges outwardly are provided at the tips of the pair of guide flanges. In the air conditioner according to claim 1,
A cable insertion portion for inserting a cable is provided at the tip of either one of the pair of body side plates,
One of the pair of guide flanges is provided with an excision part obtained by excising a part of the guide flange that covers the cable insertion part when the electrical component box cover is attached to the electrical component box body. Air conditioner. In the air conditioner according to claim 1,
A cable insertion part for inserting a cable is provided at the tip of either one of the pair of body side plates,
The pair of guide flanges are respectively provided at point-symmetric positions where cut portions are formed by cutting off portions where the guide flange covers the cable insertion portion when the electrical component box lid is attached to the electrical component box body. An air conditioner characterized by that. In the air conditioner according to claim 2 or claim 3,
The said cable insertion part has an obstruction | occlusion member which plugs up the said cable insertion hole when a cable is not inserted in a cable insertion hole and the said cable insertion hole. In the air conditioner according to any one of claims 1 to 4,
The length of the two sides of the top plate on which the pair of lid side plates is provided is shorter than the length of the corresponding two sides of the bottom plate by the total thickness of the pair of body side plates. An air conditioner characterized by

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