JP2011094827A - Outdoor unit of air conditioner and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner capable of reducing the number of components and man-hours. <P>SOLUTION: This outdoor unit 1 of the air conditioner includes a cabinet 10 forming an outer package, an angle 20 disposed in the cabinet 10, a fan 3 driven by a driving motor 5 supported by the angle 20, and a heat exchanger 2 exchanging heat with the outside air supplied by the fan 3. In the outdoor unit 1, the driving motor 5 has a first supporting section 5c and a second supporting section 5d projecting from a peripheral face of a cylindrical housing 5b, the angle 20 has a retaining section 22d of L-shaped cross section having a projecting section 22e projecting from a vertical face 22a and a front section 22f bent from the projecting section 22e, around a through hole 22b which is formed on the vertical face 22a and through which a housing 5b is penetrated, integrally with the vertical face 22a, the first supporting section 5c is retained by the retaining section 22d, and disposed between the front section 22f and the vertical face 22a, and the second supporting section 5d is screwed to the vertical face 22a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner including a fan that supplies outside air to a heat exchanger and a method for manufacturing the same.

  A conventional outdoor unit of an air conditioner is disclosed in Patent Document 1. The outdoor unit of this air conditioner is arranged outside and an exterior is formed by a metal cabinet. A heat exchanger constituting a refrigeration cycle is arranged in the cabinet, and a fan for supplying outside air facing the heat exchanger is provided.

  The fan is driven by a drive motor attached to an angle arranged in the cabinet. The angle is formed with a through-hole in a vertical surface arranged vertically, and a plurality of pressure contact pieces protruding forward are provided around the through-hole. The drive motor has a cylindrical housing, and a support portion projects from the peripheral surface of the housing. An elastic member such as rubber having a screw insertion hole is attached to the support portion.

  When the outdoor unit is assembled, the housing of the drive motor is inserted into the through hole from the front. The elastic member provided on the support portion protruding from the housing has a peripheral surface that slides on the pressure contact piece and comes into contact with a vertical surface. At this time, the pressure contact piece presses the peripheral surface of the elastic member, and the drive motor is held at an angle by the frictional force of the elastic member that is elastically deformed. Then, a screw is inserted into the insertion hole, and the drive motor is screwed to the angle. Thereby, it is not necessary to support a drive motor with a finger at the time of screwing, and workability | operativity can be improved.

  Patent Document 1 also discloses a configuration in which a projecting piece protruding forward from an angle is provided, and a drive motor is hooked on the projecting piece. When the housing of the drive motor is inserted into the through hole from the front, the projecting piece is inserted into the hole provided in the support portion or the like of the housing. Thus, the drive motor is hooked and held on the angle, and is screwed. Similarly in the above configuration, it is not necessary to support the drive motor with fingers when screwing, and workability can be improved.

Japanese Patent Laid-Open No. 2002-54825 (pages 2 to 5, FIGS. 2 and 6)

  However, according to the outdoor unit of the former air conditioner, the housing is inserted into the through hole from the front, and the elastic member and the pressure contact piece slide to elastically deform the elastic member. For this reason, there is a problem that the number of parts increases because an elastic member such as rubber is attached to the metal housing, and the man-hour is increased because it is necessary to maintain the relative position between the elastic member and the pressure contact piece with high accuracy. It was.

  Moreover, according to the outdoor unit of the latter air conditioner, the drive motor is hooked to the angle by inserting the support portion or the like through the projecting piece from the front. For this reason, when an operator hits the drive motor locked to the angle, the drive motor may fall off the angle. Therefore, since workability cannot be improved sufficiently, there is a problem that the number of man-hours for the outdoor unit of the air conditioner is large.

  An object of this invention is to provide the outdoor unit of the air conditioner which can reduce a number of parts and a man-hour, and its manufacturing method.

  In order to achieve the above object, the present invention provides a cabinet forming an exterior, an angle disposed in the cabinet, a fan driven by a drive motor supported by the angle, and an outside air supplied by the fan. And an air conditioner outdoor unit having a heat exchanger for exchanging heat with each other, the drive motor has a first support part and a second support part protruding from a peripheral surface of a cylindrical housing, and the angle is An L-shaped latch having a projecting portion projecting from the vertical surface and a front surface portion bending from the projecting portion around a through hole that opens to a vertically disposed vertical surface and penetrates the housing. The first support portion is hooked by the hook portion and arranged between the front surface portion and the vertical surface, and the second support portion is screwed to the vertical surface. Specially stopped It is set to.

  According to this configuration, the outdoor unit of the air conditioner has the heat exchanger constituting the refrigeration cycle in the cabinet, and the fan that supplies the outside air to the heat exchanger is driven by the drive motor. The drive motor is inserted into a through hole formed in a vertical surface of an angle where a cylindrical housing is arranged in the cabinet. The first support portion and the second support portion protruding from the peripheral surface of the housing are in contact with the vertical surface, and the first support portion and the second support portion are rotated by a rotation coaxial with the rotation shaft of the drive motor or a parallel movement in a direction perpendicular to the rotation shaft. The second support part slides along the vertical plane. As a result, the first support portion is disposed and hooked between the front surface portion and the vertical surface of the hook portion, and the drive motor is held. Thereafter, the second support portion is screwed to the vertical surface.

  According to the present invention, in the outdoor unit for an air conditioner having the above-described configuration, it is preferable that the front surface portion is bent forward in the rotational direction of the fan with respect to the protrusion. According to this structure, the housing inserted in the through hole is rotated coaxially with the rotation shaft, and the first support portion is hooked on the hook portion. When the fan is rotated when the screw for attaching the drive motor is loosened, the first support portion of the drive motor is pressed against the protrusion by the reaction force of the rotation of the fan, and the drive motor is prevented from falling off.

  According to the present invention, in the outdoor unit for an air conditioner having the above-described configuration, the hooking portion has elasticity, and the first support portion is sandwiched between the front surface portion and the vertical surface by the elasticity of the hooking portion. It is preferable.

  In the air conditioner outdoor unit configured as described above, the present invention is preferably provided with a plurality of first support portions and hooking portions around the through hole, and a second support portion is provided between the first support portions. .

  The present invention also provides a cabinet that forms an exterior, an angle disposed in the cabinet, a fan driven by a drive motor supported by the angle, and heat that exchanges heat with outside air supplied by the fan. In the method of manufacturing an outdoor unit of an air conditioner including an exchanger, the drive motor has a first support portion and a second support portion that protrude from a peripheral surface of a cylindrical housing, and the angle is arranged vertically. An L-shaped hooking portion having a protruding portion protruding from the vertical surface and a front surface portion bent from the protruding portion is provided integrally with the vertical surface around a through-hole opened to the vertical surface. After the housing is inserted into the through hole and the first support portion and the second support portion are brought into contact with the vertical surface, the first support portion and the second support portion are slid along the vertical surface. First The lifting unit with latching by the latching portion arranged between the vertical plane and the front portion, and a second supporting portion characterized in that screwed to the vertical plane.

  According to this configuration, the fan for supplying the outside air to the heat exchanger is inserted into the through-hole formed in the vertical surface of the angle at which the cylindrical housing is disposed in the cabinet. The first support portion and the second support portion protruding from the peripheral surface of the housing are in contact with the vertical surface, and the first support portion and the second support portion are rotated by a rotation coaxial with the rotation shaft of the drive motor or a parallel movement in a direction perpendicular to the rotation shaft. The second support part slides along the vertical plane. As a result, the first support portion is disposed between the front surface portion and the vertical surface of the latching portion and is latched by the latching portion, and the drive motor is held. Thereafter, the second support portion is screwed to the vertical surface.

  According to the present invention, in the method for manufacturing an outdoor unit for an air conditioner having the above-described configuration, the drive motor rotates coaxially with a rotation shaft so that the first support portion and the second support portion are circumferentially along the vertical surface. It is preferable that the first support portion is hooked by the hook portion. According to this structure, the housing inserted in the through hole is rotated so that the first support portion is hooked on the hook portion.

  In the method for manufacturing an outdoor unit for an air conditioner having the above-described configuration, it is preferable that the front surface portion is bent forward in the rotational direction of the fan with respect to the protruding portion.

  According to the present invention, a latching portion having an L-shaped cross section having a projecting portion and a front portion on an angle vertical surface is integrally provided, and the first support portion and the second support portion are provided on the peripheral surface of the housing of the drive motor. Projecting, the first support portion is disposed between the front surface portion and the vertical surface, and the second support portion is screwed. For this reason, it is possible to screw the second support portion without supporting the drive motor with fingers in a state where the first support portion is hooked on the hook portion during the mounting operation of the drive motor. At this time, since the front of the first support portion is covered with the front portion, the drive motor is held without dropping even if the operator hits the drive motor. Thereby, the workability | operativity of the assembly of the outdoor unit of an air conditioner can be improved, and a man-hour can be reduced. In addition, since it is not necessary to provide an elastic member as in the conventional example, the number of parts can be reduced and the number of man-hours can be further reduced. Therefore, the cost of the outdoor unit of the air conditioner can be reduced.

The perspective view which shows the outdoor unit of the air conditioner of 1st Embodiment of this invention. The perspective view which shows the inside of the outdoor unit of the air conditioner of 1st Embodiment of this invention. The perspective view which shows the state at the time of attachment of the drive motor of the outdoor unit of the air conditioner of 1st Embodiment of this invention. The front view which shows the state at the time of attachment of the drive motor of the outdoor unit of the air conditioner of 1st Embodiment of this invention. The front view which shows the state before attachment of the drive motor of the outdoor unit of the air conditioner of 1st Embodiment of this invention. The front view which shows the drive motor of the outdoor unit of the air conditioner of 1st Embodiment of this invention. BB sectional view of FIG. The perspective view which shows the angle and drive motor of the outdoor unit of the air conditioner of 2nd Embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an outdoor unit of an air conditioner according to the first embodiment. The outdoor unit 1 is arranged outside and an exterior is formed by the cabinet 10. The cabinet 10 is formed by standing a side plate 12, a front plate 13, and a back plate (not shown) on a bottom plate 11 (see FIG. 2) and fitting the top surface with a top plate 14. The bottom plate 11, the side plate 12, the front plate 13, the back plate, and the top plate 14 are formed of a metal such as a steel plate.

  FIG. 2 shows a perspective view of the inside of the outdoor unit 1. A compressor 4 that operates the refrigeration cycle is disposed in the outdoor unit 1. A heat exchanger 2 is connected to the compressor 4 via a refrigerant pipe (not shown), and a fan 3 is disposed in front of the heat exchanger 2. The fan 3 is driven by a drive motor 5 attached to the angle 20 and faces an intake port 13a (see FIG. 1) provided in the front plate 13. The fan 3 rotates to take in outside air from the air inlet 13a and promote heat exchange by the heat exchanger 2.

  3 and 4 are a perspective view and a front view showing the mounting state of the drive motor 5, respectively. The angle 20 has a leg portion 21 and a vertical portion 22. The leg portion 21 is formed in an L-shape that extends vertically and has its upper end bent forward, and the bottom portion is screwed to the bottom plate 11 and the front end is screwed to the front plate 13. Accordingly, the two leg portions 21 are erected on the bottom plate 11 with a predetermined distance therebetween.

  The vertical portion 22 is bridged between the two leg portions 21 and forms a vertical surface 22a that is vertically arranged facing the air inlet 13a (see FIG. 1). The drive motor 5 is screwed to the vertical surface 22 a of the vertical portion 22 by screws 6.

  FIG. 5 is a front view showing a state before the drive motor 5 of the outdoor unit 1 is attached. FIG. 6 shows a front view of the drive motor 5. The drive motor 5 is covered with a cylindrical housing 5b concentric with the rotary shaft 5a, and has a first support portion 5c and a second support portion 5d protruding from the peripheral surface of the housing 5b.

  The 1st support part 5c is provided in two places facing the rotating shaft 5a. The 2nd support part 5d is provided in two places which oppose with respect to the rotating shaft 5a between the 1st support parts 5c. The second support portion 5d is provided with an insertion hole 5e through which the screw 6 (see FIG. 3) is inserted.

  The vertical surface 22a of the angle 20 is provided with a through hole 22b through which the housing 5b of the drive motor 5 passes. Screw holes 22c are provided around the through hole 22b at two locations corresponding to the insertion holes 5e of the second support portion 5d. Moreover, the latching | locking part 22d is provided in two places corresponding to the 1st support part 5c.

  FIG. 7 shows a cross-sectional view taken along the line BB of FIG. The hooking portion 22d has a protruding portion 22e that protrudes forward from the vertical surface 22a and a front surface portion 22f that is bent from the protruding portion 22e and extends along the vertical surface 22a, and is formed in an L-shaped cross section. A latching portion 22 d is formed integrally with the vertical portion 22 by cutting and raising the vertical portion 22. The first support portion 5c is hooked on the hook portion 22d, and the front surface is covered by the front surface portion 22f.

  In the outdoor unit 1 configured as described above, when the housing 5b of the drive motor 5 is inserted into the through hole 22b from the front, the first support portion 5c and the second support portion 5d come into contact with the vertical surface 22a. When the drive motor 5 is rotated coaxially with the rotary shaft 5a from this state, the first support portion 5c and the second support portion 5d slide in the circumferential direction on the vertical surface 22a. In FIG. 4, the drive motor 5 is rotated clockwise.

  The first support portion 5c is arranged between the front surface portion 22f and the vertical surface 22a by a slide and is hooked on the hook portion 22d. Thereby, the front surface of the first support portion 5c is covered with the front surface portion 22f. At this time, the insertion hole 5e of the second support portion 5d faces the screw hole 22c, and the screw 6 is inserted into the insertion hole 5e and screwed into the screw hole 22c. Thereby, the drive motor 5 is attached to the angle 20.

  The front surface portion 22f of the latching portion 22d is bent toward the front in the rotation direction A (see FIG. 4) of the fan 3 with respect to the protrusion 22e. For this reason, when the fan 3 rotates when the screw 6 is loosened, the first support portion 5c of the drive motor 5 is pressed against the protruding portion 22e by the reaction force of the rotation of the fan 3. As a result, the drive motor 5 can be prevented from falling off.

  According to the present embodiment, the vertical surface 22a of the angle 20 is integrally provided with a latching portion 22d having an L-shaped cross section having a protruding portion 22e and a front surface portion 22f, and is provided on the peripheral surface of the housing 5b of the drive motor 5. The 1st support part 5c and the 2nd support part 5d are protrudingly provided, the 1st support part 5c is distribute | arranged between the front surface part 22f and the vertical surface 22a, and the 2nd support part 5d is screwed.

  For this reason, the second support portion 5d can be screwed without supporting the drive motor 5 with fingers in a state where the first support portion 5c is hooked on the hook portion 22d when the drive motor 5 is attached. At this time, since the front of the first support portion 5c is covered with the front surface portion 22f, the drive motor 5 is held without dropping even if the operator hits the drive motor 5. Thereby, the workability | operativity of the assembly of the outdoor unit 1 of an air conditioner can be improved, and a man-hour can be reduced. In addition, since it is not necessary to provide an elastic member as in the conventional example, the number of parts can be reduced and the number of man-hours can be further reduced. Therefore, the cost of the outdoor unit 1 of an air conditioner can be reduced.

  Note that the first support portion 5c may be slid along the vertical surface 22a by moving the drive motor 5 linearly or in a curve in a direction perpendicular to the rotation shaft 5a. However, when the drive motor 5 is rotated coaxially with the rotation shaft 5a as in the present embodiment, the through hole 22b can be formed to have substantially the same diameter as the housing 5b. Therefore, the vertical part 22 which opens the through-hole 22b can be reduced in size, and the weight reduction of the outdoor unit 1 can be achieved.

  Further, since the front surface portion 22f is bent forward in the rotation direction A of the fan 3 with respect to the protruding portion 22e, when the fan 3 rotates by driving of the drive motor 5 with the screw 6 loosened, the first support portion 5c. Is pressed against the protrusion 22e. As a result, the drive motor 5 can be prevented from falling off.

  It is more preferable that the distance between the front surface portion 22f and the vertical surface 22a before the drive motor 5 is attached is smaller than the thickness of the first support portion 5c. Thereby, the 1st support part 5c is clamped between the front-surface part 22f and the vertical surface 22a by the elasticity of the latching | locking part 22. FIG. Therefore, it is possible to more reliably prevent the drive motor 5 from falling off when the drive motor 5 is attached or when the screw 6 is loosened.

  Further, since the plurality of first support portions 5c and the latching portions 22d are provided around the through hole 22b, and the second support portion 5d is provided between the first support portions 5c, the drive motor 5 is more efficiently driven by the first support portion 5c. The second support portion 5d and the screws 6 can be reduced while being securely hooked. Therefore, the number of parts and the number of work steps can be further reduced.

  Next, FIG. 8 is a perspective view showing the angle and the drive motor of the outdoor unit of the air conditioner of the second embodiment. For convenience of explanation, the same reference numerals are assigned to the same parts as those in the first embodiment shown in FIGS. This embodiment differs in the structure of the angle 20 with respect to 1st Embodiment. Other parts are the same as those in the first embodiment.

  The angle 20 has leg portions 23 extending downward from both side portions of the vertical portion 22 having a vertical surface 22a. Further, a leg portion 24 extending downward and forward from the lower end of the vertical portion 22 is provided between the leg portions 23. The vertical portion 22 and the leg portions 23 and 24 are integrally formed by cutting and bending a substantially rectangular metal plate by pressing. For this reason, the leg part 24 can be easily formed by bending forward between the leg parts 23 without increasing the unfolded dimension of the metal plate before processing.

  The bottom portions of the leg portions 23 and 24 are attached to the bottom plate 11 (see FIG. 2), and the angle 20 is supported at three points and is erected on the bottom plate 11. Then, the drive motor 5 is attached to the angle 20. At this time, similarly to the first embodiment, the first support portion 5c is hooked to the hook portion 22d, and the second support portion 5d is screwed to the vertical surface 22a.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. In addition, since the angle 20 is supported at three points by the leg portions 23 and 24, it is not necessary to support the angle 20 with fingers when the angle 20 is attached. Further, when the fan 3 is attached before the upper end of the leg portion 21 (see FIG. 3) shown in the first embodiment is fixed, the angle 20 swings, but the angle 20 is supported at three points and the fan 3 is attached. The swing of the angle 20 at the time can be prevented. Therefore, the assembling workability of the outdoor unit 1 can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the outdoor unit of the air conditioner provided with the fan which supplies external air to a heat exchanger.

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Heat exchanger 3 Fan 4 Compressor 5 Drive motor 5a Rotating shaft 5b Housing 5c 1st support part 5d 2nd support part 10 Cabinet 11 Bottom plate 12 Side plate 13 Front plate 14 Top plate 20 Angle 21, 23, 24 leg Part 22 Vertical part 22a Vertical surface 22b Through hole 22c Screw hole 22d Latching part 22e Protruding part 22f Front part

Claims (7)

  A cabinet forming an exterior; an angle disposed in the cabinet; a fan driven by a drive motor supported by the angle; and a heat exchanger for exchanging heat with the outside air supplied by the fan. In the outdoor unit of the air conditioner, the drive motor has a first support part and a second support part that protrude from the peripheral surface of the cylindrical housing, and the angle is open to a vertically arranged vertical surface. Around the through-hole through which the housing passes, a latching portion having an L-shaped cross section having a protruding portion protruding from the vertical surface and a front surface portion bent from the protruding portion is provided integrally with the vertical surface, An air conditioner characterized in that a first support part is hooked by the hook part and arranged between the front part and the vertical surface, and a second support part is screwed to the vertical surface. Outdoor unit.   The outdoor unit for an air conditioner according to claim 1, wherein the front part is bent forward in the rotational direction of the fan with respect to the protrusion.   The said latching | locking part has elasticity, The 1st support part was clamped between the said front surface part and the said vertical surface by the elasticity of the said latching part, The Claim 1 or Claim 2 characterized by the above-mentioned. Air conditioner outdoor unit.   The first support portion and the hooking portion are provided around the through hole, and the second support portion is provided between the first support portions. Air conditioner outdoor unit.   A cabinet forming an exterior; an angle disposed in the cabinet; a fan driven by a drive motor supported by the angle; and a heat exchanger for exchanging heat with the outside air supplied by the fan. In the manufacturing method of an outdoor unit for an air conditioner, the drive motor has a first support part and a second support part protruding from a peripheral surface of a cylindrical housing, and the angle is a vertical surface arranged vertically. An L-shaped latching section having a projecting portion projecting from the vertical surface and a front surface portion bent from the projecting portion is provided integrally with the vertical surface around the open through-hole. After the first support portion and the second support portion are brought into contact with the vertical surface by being inserted into the through hole, the first support portion and the second support portion are slid along the vertical surface to provide the first support. Part And engaging disposed between the vertical surface and the front part by part, the production method of the air conditioner outdoor unit of the second supporting portion, characterized in that screwed to the vertical plane.   The drive motor rotates coaxially with the rotation shaft, the first support portion and the second support portion slide in the circumferential direction along the vertical plane, and the first support portion is latched by the latching portion. The manufacturing method of the outdoor unit of the air conditioner of Claim 5 characterized by these.   The method of manufacturing an outdoor unit for an air conditioner according to claim 6, wherein the front portion is bent forward in the rotational direction of the fan with respect to the protrusion.

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