JP2019157697A - Drain pump attachment structure - Google Patents

Abstract

To provide a drain pump attachment structure which inhibits propagation of vibration of a motor to an attached body to which the drain pump is attached to achieve quietness during operation.SOLUTION: A drain pump attachment structure includes: a drain pump 1; and an attachment member 70 which attaches the drain pump 1 to a ceiling board 61 of an air conditioner 60, and the drain pump 1 is disposed below the ceiling board 61. The drain pump 1 has: rotary vanes 30; a housing 10 which houses the rotary vanes 30; a cover 20 attached to an upper part of the housing 10; and a motor 40 which is housed in the cover 20 and rotates the rotary vanes 30. The drain pump 1 is attached to the ceiling board 61 by the attachment member 70 in a state where the cover 20 forms a space D with the ceiling board 61.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a mounting structure for a drainage pump that sucks water from a suction port and discharges it from a discharge port by a rotary blade. In particular, the present invention relates to a drainage pump mounting structure suitable for quietness during operation.

  An air conditioner installed on an indoor ceiling has a drain pan that receives drain water condensed on the surface of the indoor heat exchanger, and a drain pump (drain pump) that discharges the drain water in the drain pan.

  In FIG. 7, an example of the conventional drainage pump described in patent document 1 is shown. 7A to 7C are a plan view, a front view, and a bottom view of a conventional drainage pump in order. The conventional drainage pump 800 has a pump housing 810 that houses the rotating blades 830. A lower cover 840 is attached to the top of the pump housing 810. A motor 880 is provided on the upper portion of the lower cover 840, and the motor 880 is covered with the upper cover 850. An upper portion of the upper cover 850 is provided with an attachment portion 852 that is attached to the air conditioner 900 as an attached body.

JP 2014-107893 A

  When the conventional drainage pump 800 is attached to the air conditioner 900, it is fixed by a fixing member 890 such as a screw in a state in which the attachment portion 852 is in close contact with the air conditioner 900 in order to prevent dropping. Therefore, there is a possibility that vibration accompanying rotation of the motor 880 propagates from the mounting portion 852 to the air conditioner 900 to generate noise.

  The present invention has been made in view of the above-mentioned problems, and the object thereof is to suppress the propagation of vibrations of the motor to the mounted body to which the drainage pump is attached, thereby achieving quietness during operation. The object is to provide a drainage pump mounting structure.

  In order to solve the above problems, a drainage pump mounting structure according to the present invention includes a drainage pump and at least one mounting means for mounting the drainage pump on a mounted body, and the drainage pump is placed under the mounted body. A drainage pump mounting structure disposed on a side, wherein the drainage pump includes a rotary blade, a housing that houses the rotary blade, a cover that is attached to an upper portion of the housing, and a cover that is housed in the cover and that rotates. A motor for rotating the blades, and the drainage pump is characterized in that the cover is attached to the attached body by the attachment means at a distance from the attached body.

  In this invention, it is preferable that the said drainage pump is attached so that it may hang down to the said to-be-attached body by the said attachment means.

  In the present invention, it is preferable that the drainage pump is attached by the attachment means so as to be suspended from the attached body by its own weight.

  In the present invention, the attachment means is separate from the cover, and the drainage pump has one end of the attachment means locked to the attached body and the other end locked to the cover. By being done, it is preferable to attach to this to-be-attached body.

  In the present invention, it is preferable that the one end portion of the attachment means is inserted into a through hole provided in the attached body and is caught by an edge portion of the through hole.

  In the present invention, the one end portion of the attachment means has a wide portion that swells outward, and the through hole of the attached body has a shape through which the one end portion of the attachment means can be inserted. It is preferable that it has a slit part which has a width | variety and a width | variety smaller than the width | variety of the said wide part connected to the said insertion part.

  In the present invention, the one end portion of the attachment means has a wide portion that bulges outward, and a slit is formed so as to form a plurality of elastic pieces, and the plurality of elastic pieces are formed on the one end portion. It is preferable to be inserted into the through hole of the attached body in a state of being elastically deformed toward the center side of the attachment body.

  In the present invention, it is preferable that the other end of the attachment means is inserted into a through hole provided in the cover and is caught by an edge of the through hole.

  In the present invention, the other end portion of the attachment means has a wide portion that bulges outward, and a slit is formed so as to form a plurality of elastic pieces, and the plurality of elastic pieces are the other end portion. It is preferable that the cover is inserted into the through-hole of the cover while being elastically deformed toward the center side.

  In the present invention, the attachment means may be provided integrally with the cover, and the drainage pump may be attached to the attached body by locking an end portion of the attachment means to the attached body. preferable.

  In this invention, it is preferable that the edge part of the said attaching means is inserted in the through-hole provided in the said to-be-attached body, and is hooked on the edge of this through-hole.

  In the present invention, an end portion of the attachment means has a wide portion that swells outward, and the through hole of the attached body has an insertion portion having a shape through which the end portion of the attachment means can be inserted, and the insertion portion. And a slit portion having a width smaller than the width of the wide portion.

  In the present invention, the end portion of the attachment means has a wide portion that swells outward, and a slit is formed so as to constitute a plurality of elastic pieces, and the plurality of elastic pieces are elastic on the center side of the end portion. It is preferably inserted into the through hole of the attached body in a deformed state.

  In the present invention, it is preferable that the attachment means has a bending elastic modulus smaller than at least one of the attached body and the cover.

  According to the present invention, the drainage pump is attached to the attached body by the attachment means with the cover being spaced from the attached body. Since it did in this way, since the cover of a drainage pump does not contact with a to-be-attached body, it can avoid that a vibration propagates directly from a cover to a to-be-attached body. Therefore, it is possible to suppress the propagation of the vibration of the motor to the mounted body to which the drainage pump is attached, and to achieve quietness during operation.

It is a figure which shows the attachment structure of the drainage pump which concerns on 1st Example of this invention. It is a front view containing the partial cross section of the drainage pump of FIG. It is a figure explaining the attachment structure of the drainage pump of FIG. It is a figure which shows the attachment structure of the drainage pump which concerns on 2nd Example of this invention. It is a figure explaining the attachment structure of the drainage pump of FIG. It is a figure explaining the attachment structure of the drainage pump which concerns on 3rd Example of this invention. It is a figure which shows the attachment structure of the conventional drainage pump.

  A drainage pump mounting structure according to the present invention described below includes a drainage pump and at least one mounting means for mounting the drainage pump on a mounted body, and the drainage pump is disposed below the mounted body. To do. The drainage pump includes a rotating blade, a housing that houses the rotating blade, a cover that is attached to an upper portion of the housing, and a motor that is housed in the cover and rotates the rotating blade. The drainage pump is characterized in that the cover is attached to the mounted body by the mounting means at a distance from the mounted body.

(First embodiment)
Hereinafter, a drainage pump mounting structure according to a first embodiment of the present invention will be described with reference to FIGS. The drainage pump which concerns on 1st Example is for discharging | emitting the drain water collected in the drain pan of the indoor unit of an air conditioner outside as an example. Of course, the use of this drain pump is not limited to drain water discharge, but can be used for discharging various kinds of liquids and pumping them up. The same applies to the second and third embodiments described later.

  FIG. 1 is a view showing a drainage pump mounting structure according to a first embodiment of the present invention. FIGS. 1A to 1C are a plan view, a front view, and a bottom view, which are shown through the attached body in order. FIG. 2 is a front view including a partial cross section of the drainage pump of FIG. 1, and specifically, is a front view including a partial cross sectional view of the lower part of the drainage pump cut along a plane passing through the axis of the discharge pipe. FIG. 3 is a view for explaining a mounting structure of the drainage pump of FIG. Fig.3 (a) is the top view seen from the upper side of the to-be-attached body, and has shown the drainage pump with the broken line. FIG.3 (b) is the figure which expanded the through-hole vicinity (elliptical part of the dashed-dotted line of Fig.3 (a)) of a to-be-attached body. FIG.3 (c) is an expanded sectional view which follows the AA line of FIG.3 (b). In the description of the first embodiment, “up and down” coincides with the up and down directions of FIG.

  The first embodiment is a structure in which the drainage pump 1 is attached to a ceiling plate 61 of an air conditioner 60 as an attached body by an attachment member 70 as attachment means.

  As shown in FIGS. 1 and 2, the drainage pump 1 includes a housing 10, a cover 20, a rotary blade 30, and a motor 40. In the present embodiment, the housing 10, the cover 20, and the rotary blade 30 are made of synthetic resin.

  The housing 10 integrally includes a main body 11, a suction pipe 16, and a discharge pipe 18. The main body 11 includes a bottom wall portion 12 having an inverted frustoconical shape and a peripheral wall portion 13 connected to the outer peripheral edge of the bottom wall portion 12. The suction pipe 16 extends downward from the center of the bottom wall portion 12 and has a suction port 17 facing downward. The discharge pipe 18 has a discharge port 19 extending from the peripheral wall portion 13 to the side (right direction in FIG. 1B) and facing the side. In the present embodiment, the discharge pipe 18 extends linearly to the side, but is not limited thereto. For example, the discharge port may be formed in a substantially L shape or an arc shape facing upward, and may be provided on the side portion of the main body portion 11. A discharge pipe inlet 15 serving as an inlet to the discharge pipe 18 is provided on the inner peripheral surface 14 of the peripheral wall portion 13 of the main body 11.

  The housing 10 has a space in which the rotary blades 30 are disposed, and the pump chamber 5 is formed (defined) by surrounding the space together with the cover 20.

  The cover 20 includes a substantially cylindrical lower cover 21 and a lid-shaped upper cover 22 that closes the upper end of the lower cover 21. The lower cover 21 is attached to the housing 10 by a snap-fit mechanism 23 with the lower end portion fitted into the upper opening of the main body 11 of the housing 10. The upper cover 22 is attached to the upper end portion of the lower cover 21 via a locking portion 24.

  A plurality of attachment portions 25 for attaching the drainage pump 1 to the air conditioner 60 are integrally provided on the upper surface 22 a of the upper cover 22. The mounting portion 25 includes a column portion 26 that extends obliquely upward, and a flat plate portion 27 that extends in the horizontal direction from the tip of the column portion 26. When the drainage pump 1 is viewed from above and below, the flat plate portion 27 protrudes outward from the projected shapes of the lower cover 21 and the upper cover 22, and its outermost end is inscribed in a virtual circle P1 having a diameter L1. A cutout 28 is provided at the outer end of the flat plate portion 27.

  The cutout 28 has a shape in which the width of the portion entering the back from the entrance is wider than the width of the entrance when viewed from above and below. In the present embodiment, the width of the entrance of the notch 28 is smaller than the diameter of the column portion 71 of the mounting member 70 described later. In addition, the width of the portion entering from the entrance of the notch 28 is larger than the diameter of the column portion 71 of the mounting member 70 and smaller than the diameter of the base end portion 73. The notch 28 penetrates the flat plate portion 27 of the attachment portion 25 in the vertical direction and corresponds to a through hole provided in the cover 20.

  The rotary blade 30 is rotatably accommodated in the pump chamber 5. The rotary blade 30 includes a shaft portion 31, a large diameter blade 33, a small diameter blade 34, an auxiliary blade 35, and an annular member 36. The rotary blade 30 has a plurality of large-diameter blades 33, small-diameter blades 34, and auxiliary blades 35 formed in a substantially flat plate shape, and in this embodiment, there are four each. A configuration in which the auxiliary blade 35 is omitted may be employed.

  The shaft portion 31 is formed in a cylindrical shape, and a mounting hole 32 into which the drive shaft 41 of the motor 40 is fitted is provided at the upper end portion. The plurality of large-diameter blades 33 extend in the radial direction from the outer peripheral surface of the shaft portion 31. The plurality of small diameter blades 34 are connected to the radially inner portion at the lower end of each large diameter blade 33. The auxiliary blades 35 are disposed between the large-diameter blades 33 adjacent in the circumferential direction and extend in the radial direction. The annular member 36 has an inverted truncated cone shape, and an opening 37 is provided at the center. The annular member 36 connects the tapered portions at the lower ends of the large-diameter blades 33 and the auxiliary blades 35 to each other. The large-diameter blades 33 and the auxiliary blades 35 are arranged in the pump chamber 5 so that the respective radially outer end portions thereof are opposed to the inner peripheral surface 14 of the peripheral wall portion 13 of the housing 10. The small-diameter blade 34 passes through the opening 37 of the annular member 36 and is inserted into the suction pipe 16.

  The motor 40 is accommodated in the cover 20. In the cover 20, the shaft portion 31 of the rotary blade 30 is inserted into a through hole 29 provided in the center thereof, and the drive shaft 41 of the motor 40 is fitted in the mounting hole 32 of the shaft portion 31.

  The air conditioner 60 has a drain pan (not shown) that receives drain water condensed on the surface of the indoor heat exchanger, and the drainage pump 1 is attached to a ceiling plate 61 that is provided above the drain pan with a space therebetween. As shown in FIG. 3A, the ceiling plate 61 is provided with a plurality of through holes 62. In the present embodiment, three through holes 62 are provided.

  The through-hole 62 has a circular insertion part 63 and a slit part 64 that is continuous with the insertion part 63. The insertion part 63 has a diameter larger than the diameter of the tip part 72 of the mounting member 70. The insertion part 63 should just be a shape which the front-end | tip part 72 of the attachment member 70 can penetrate. The slit portion 64 has a width that is smaller than the diameter of the distal end portion 72 (that is, the width of the distal end portion 72) and larger than the diameter of the column portion 71. In the present embodiment, the center of the insertion portion 63 of each through hole 62 is arranged on the virtual circle Q1. Moreover, the center line of the slit part 64 of each through-hole 62 is also arrange | positioned on the virtual circle Q1.

  The attachment member 70 is formed in a columnar shape, and includes a columnar column portion 71, a circular flange-shaped tip portion 72 provided at the upper end (one end portion) of the column portion 71, and the lower end of the column portion 71. And a circular flange-shaped base end portion 73 provided at (the other end portion). The diameter of the column portion 71 is smaller than the width of the portion entering from the entrance of the notch 28 and the width of the slit portion 64 of the through hole 62 of the ceiling plate 61. The diameter of the distal end portion 72 is larger than the width of the slit portion 64. The diameter of the base end portion 73 is larger than the width of the portion entering from the entrance to the notch 28. The distal end portion 72 and the base end portion 73 may be wide portions that swell radially outward from the column portion 71. In this embodiment, there are three attachment members 70.

  In the present embodiment, the drainage pump 1 is attached to the ceiling plate 61 by the attachment member 70 so as to be suspended (hangs down) by its own weight. Here, “hangs down by its own weight” means that it hangs down only by its own weight without receiving any other force. Therefore, for example, a configuration in which the drainage pump 1 is suspended in a state where it is connected to a drain pan or the like with a wire so as to restrict excessive vibration is received by the force of the drainage pump 1 being pulled by the wire. Is not included. Of course, such a configuration that regulates the swing of the drainage pump 1 by a wire or the like may be adopted.

  The attachment member 70 is separate from the ceiling board 61 and the cover 20. The drainage pump 1 is mounted so as to be suspended from the ceiling plate 61 by the upper end of the mounting member 70 being locked to the ceiling plate 61 and the lower end being locked to the cover 20.

  Specifically, the distal end portion 72 of the attachment member 70 is inserted into a through hole 62 provided in the ceiling plate 61 and is also an annular downward surface 72a that is hooked on the edge portion 62a of the through hole 62 so as to be suspended. have. The base end portion 73 of the attachment member 70 is inserted into a notch 28 provided in the flat plate portion 27 of the attachment portion 25 of the cover 20, and at the edge portion 28 a of the notch 28 so that the flat plate portion 27 is in a suspended state. It has an annular upward surface 73a to be caught. The distal end portion 72 may have a flange shape other than a circular shape, and the downward surface 72a may have an annular shape other than an annular shape. The same applies to the base end portion 73.

  The attachment member 70 has a lower bending elastic modulus than the ceiling plate 61 and the cover 20. The attachment member 70 preferably has a lower bending elastic modulus than at least one of the ceiling plate 61 and the cover 20. By doing so, vibration propagating from the cover 20 to the ceiling board 61 is effectively attenuated in the mounting member 70.

  Next, a method for attaching the drainage pump 1 to the ceiling plate 61 of the air conditioner 60 using the attachment member 70 will be described.

  First, the attachment member 70 is attached to the flat plate portions 27 of the plurality of attachment portions 25 included in the drainage pump 1. Specifically, the column portion 71 of the mounting member 70 is pushed into the notch 28 provided in each flat plate portion 27 from the entrance. Thereby, the column part 71 of the attachment member 70 is hold | maintained in the state penetrated by the notch 28. FIG.

  Next, the distal end portion 72 of the attachment member 70 attached to each flat plate portion 27 is inserted into the insertion portion 63 of the through hole 62 provided in the ceiling plate 61 of the air conditioner 60. Then, the drainage pump 1 is rotated in a counterclockwise direction when viewed from above, and the column portion 71 of the attachment member 70 is slid so as to enter the slit portion 64 of the through hole 62.

  As a result, the downward surface 72a of the tip 72 of the attachment member 70 is hooked on the edge 62a of the through-hole 62 and becomes a suspended state (hanging state). Further, the upward surface 73a of the base end portion 73 of the mounting member 70 is hooked on the edge portion 28a of the notch 28, so that the flat plate portion 27 is in a suspended state. In this manner, the drainage pump 1 is attached to the ceiling plate 61 of the air conditioner 60 in a suspended state by the attachment member 70. At this time, the cover 20 (flat plate portion 27) of the drainage pump 1 and the ceiling plate 61 are arranged to face each other with a gap D therebetween. The distance D is preferably 0.5 mm to 100 mm, and more preferably 1 mm to 50 mm.

  As described above, according to the present embodiment, in the drainage pump 1, the cover 20 is attached to the ceiling plate 61 with the attachment member 70 spaced from the ceiling plate 61 of the air conditioner 60. Since it did in this way, since the cover 20 of the drainage pump 1 does not contact the ceiling board 61, it can avoid that a vibration propagates directly from the cover 20 to the ceiling board 61. Therefore, propagation of vibration of the motor 40 to the ceiling plate 61 to which the drainage pump 1 is attached can be suppressed, and silence during operation can be achieved.

  Further, the drainage pump 1 is attached to the ceiling plate 61 by the attachment member 70 so as to be suspended by its own weight. By doing in this way, the drainage pump 1 hangs on the ceiling board 61 by its own weight with freedom of movement without being fixed. Therefore, since the drainage pump 1 and the ceiling plate 61 are loosely connected, it is possible to further suppress the propagation of vibration of the motor 40 to the ceiling plate 61 to which the drainage pump 1 is attached, thereby achieving quietness during operation. be able to. Further, since the drainage pump 1 is suspended from the ceiling plate 61 with a degree of freedom of movement, when the motor 40 rotates, it can be balanced autonomously and maintain a posture with little vibration.

  Further, the attachment member 70 is separate from the cover 20. The drainage pump 1 is attached to the ceiling plate 61 by engaging the top end 72 of the attachment member 70 with the ceiling plate 61 and the base end 73 of the bottom end with the cover 20. The distal end portion 72 of the mounting member 70 is inserted into the through hole 62 provided in the ceiling plate 61 and is caught by the edge 62 a of the through hole 62. The base end portion 73 of the mounting member 70 is inserted into the notch 28 provided in the cover 20 and is caught by the edge portion 28 a of the notch 28. By doing in this way, the drainage pump 1 can be attached to the ceiling board 61 with a comparatively simple structure.

  Moreover, the front-end | tip part 72 of the attachment member 70 is a wide part which swells outside. The through hole 62 of the ceiling plate 61 includes an insertion portion 63 having a shape into which the distal end portion 72 of the mounting member 70 can be inserted, and a slit portion 64 that is continuous with the insertion portion 63 and has a width smaller than the width of the distal end portion 72. is doing. By doing so, the drainage pump 1 can be easily moved to the ceiling plate 61 by sliding the tip 72 of the mounting member 70 so as to enter the slit 64 after passing through the insertion 63 of the through hole 62. Can be installed.

(Second embodiment)
Hereinafter, a drainage pump mounting structure according to a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 4 is a view showing a drainage pump mounting structure according to the second embodiment of the present invention. FIGS. 4A to 4C are a plan view, a front view, and a bottom view, which are shown through the attached body in order. FIG. 5 is a view for explaining a mounting structure of the drainage pump of FIG. Fig.5 (a) is the top view seen from the upper side of the to-be-attached body, and has shown the drainage pump with the broken line. FIG. 5B is an enlarged view of the vicinity of the through-hole of the attached body (the ellipse portion indicated by the one-dot chain line in FIG. 5A). FIG.5 (c) is an expanded sectional view which follows the BB line of FIG.5 (b). In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The second embodiment has a structure in which the drain pump 1A is attached to the ceiling plate 61 of the air conditioner 60 as an attached body by the attachment member 80. The second embodiment employs the drainage pump 1A in which the mounting portion 25 is omitted based on the configuration of the first embodiment, and the mounting member 80 in which the base end portion 83 is integrally mounted on the upper surface 22a of the upper cover 22. Is adopted.

  The drainage pump 1A shown in FIGS. 4 and 5 has the same configuration as the drainage pump 1 except that the mounting portion 25 is omitted in the drainage pump 1 of the first embodiment.

  The attachment member 80 is formed in a columnar shape, and includes a columnar column portion 81 and a circular flange-shaped tip portion 82 provided at the upper end of the column portion 81. Further, the base end portion 83 of the mounting member 80 is provided integrally with the upper cover 22 of the drainage pump 1A. The diameter of the column part 81 is smaller than the width of the slit part 64 of the through hole 62 of the ceiling plate 61. The diameter of the tip portion 82 is larger than the width of the slit portion 64. The distal end portion 82 may be a wide portion that swells radially outward from the column portion 81. In this embodiment, there are three attachment members 80.

  The front end portion 82 of the mounting member 80 is inserted into a through hole 62 provided in the ceiling plate 61 and has an annular downward surface 82a that is hooked on the edge portion 62a of the through hole 62 so as to be in a suspended state. . The distal end portion 82 may have a flange shape other than a circular shape, and the downward surface 82a may have an annular shape other than an annular shape.

  The attachment member 80 has a lower bending elastic modulus than the ceiling board 61 and the cover 20. The attachment member 80 preferably has a lower bending elastic modulus than at least one of the ceiling plate 61 and the cover 20. By doing so, vibration propagating from the cover 20 to the ceiling board 61 is effectively attenuated in the attachment member 80.

  In the second embodiment, the center of the insertion portion 63 of each through hole 62 is disposed on the virtual circle Q2. Moreover, the center line of the slit part 64 of each through-hole 62 is also arrange | positioned on the virtual circle Q2. The virtual circle Q2 is included in the projected shapes of the lower cover 21 and the upper cover 22 when viewed from the vertical direction. Moreover, when the drainage pump 1A is viewed from the vertical direction, the outermost end of the cover 20 is inscribed in a virtual circle P2 having a diameter L2 smaller than the diameter L1 of the virtual circle P1 of the first embodiment.

  The distal end portion 82 of the attachment member 80 is attached to the ceiling plate 61 of the air conditioner 60 by the same attachment method as the distal end portion 72 of the attachment member 70 of the first embodiment. At this time, the cover 20 of the drainage pump 1A (the upper surface 22a of the upper cover 22) and the ceiling plate 61 are arranged facing each other with a gap D therebetween. The distance D is preferably 0.5 mm to 100 mm, and more preferably 1 mm to 50 mm.

  The second embodiment also has the same effect as the first embodiment. In addition, since the mounting portion 25 is omitted, a more compact configuration can be achieved.

(Third embodiment)
Hereinafter, a drainage pump mounting structure according to a third embodiment of the present invention will be described with reference to FIG.

  FIG. 6 is a view for explaining a drainage pump mounting structure according to the third embodiment of the present invention. Fig.6 (a) is the top view seen from the upper side of the to-be-attached body, and has shown the drainage pump with the broken line. FIG. 6B is an enlarged view of the vicinity of the through-hole of the attached body (the ellipse portion indicated by the one-dot chain line in FIG. 6A). FIG.6 (c) is an expanded sectional view which follows the AA line of FIG.6 (b). In the description of the second embodiment, “up and down” corresponds to the front-back direction in FIG. 6A and matches the vertical direction in FIG. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The third embodiment is a structure in which the drainage pump 1 is attached to a ceiling plate 61 of an air conditioner 60 as an attached body by an attachment member 90. The third embodiment employs a circular through-hole 65 in the ceiling plate 61 based on the configuration of the first embodiment, and includes a mounting member 90 whose distal end portion 92 and proximal end portion 93 are elastically deformable in the radial direction. Adopted.

  As shown in FIG. 6A, the ceiling plate 61 of the air conditioner 60 is provided with a plurality of through holes 65. In the third embodiment, three through holes 65 are provided. The through hole 65 is formed in a circular shape. The through hole 65 has a diameter smaller than the diameter of the tip end portion 92 of the mounting member 90.

  The attachment member 90 is formed in a columnar shape, and includes a columnar column portion 91, a circular flange-shaped tip portion 92 provided at the upper end (one end portion) of the column portion 91, and the lower end of the column portion 91. And a circular flange-shaped base end portion 93 provided at (the other end portion). The diameter of the column portion 91 is smaller than the width of the portion entering from the entrance of the notch 28 and the diameter of the through hole 65 of the ceiling plate 61. The diameter of the tip 92 is larger than the diameter of the through hole 65. The diameter of the base end portion 93 is larger than the width of the portion entering from the entrance of the notch 28. The distal end portion 92 and the base end portion 93 may be wide portions that swell radially outward from the column portion 91. In this embodiment, there are three attachment members 90.

  The attachment member 90 includes a slit 94 extending in the radial direction and having a depth extending from the distal end portion 92 to the column portion 91, and a slit 95 extending in the radial direction and having a depth extending from the proximal end portion 93 to the column portion 91. Have. The slit 94 and the slit 95 are formed at the distal end portion 92 and the proximal end portion 93 so as to constitute a plurality of elastic pieces that can be elastically deformed in the radial direction.

  The distal end portion 92 of the mounting member 90 is inserted into a through hole 65 provided in the ceiling plate 61 and has a downward surface 92a that is hooked on an edge portion 65a of the through hole 65 so as to be in a suspended state. The base end portion 93 of the attachment member 90 is inserted into the notch 28 provided in the flat plate portion 27 of the attachment portion 25 of the cover 20 and is also formed on the edge portion 28a of the notch 28 so that the flat plate portion 27 is in a suspended state. It has an upward surface 93a to be caught.

  The attachment member 90 has a lower bending elastic modulus than the ceiling board 61 and the cover 20. The attachment member 90 preferably has a lower bending elastic modulus than at least one of the ceiling plate 61 and the cover 20. By doing so, vibration propagating from the cover 20 to the ceiling board 61 is effectively attenuated in the mounting member 90.

  Next, a method for attaching the drainage pump 1 to the ceiling plate 61 of the air conditioner 60 using the attachment member 90 will be described.

  First, the attachment member 90 is attached to the flat plate portions 27 of the plurality of attachment portions 25 included in the drainage pump 1. Specifically, the column portion 91 of the attachment member 90 is pushed into the notch 28 provided in each flat plate portion 27 from the entrance. Alternatively, the plurality of elastic pieces of the base end portion 93 of the attachment member 90 are elastically deformed so as to be reduced toward the center side, inserted into the cutout 28 from above, and then restored. Instead of the cutout 28, a circular through hole may be provided in the flat plate portion 27. Thereby, the column part 91 of the attachment member 90 is held in a state of being inserted into the notch 28.

  Next, the distal end portion 92 of the attachment member 90 attached to each flat plate portion 27 is inserted into the through hole 65 provided in the ceiling plate 61 of the air conditioner 60. Specifically, the plurality of elastic pieces at the tip end portion 92 of the attachment member 90 are elastically deformed so as to be reduced toward the center, inserted into the through hole 65 from below, and then restored.

  As a result, the downward surface 92a of the distal end portion 92 of the mounting member 90 is hooked on the edge portion 65a of the through-hole 65 and becomes a suspended state. Further, the upward surface 93a of the base end portion 93 of the attachment member 90 is caught by the edge portion 28a of the notch 28, and the flat plate portion 27 is in a suspended state. In this manner, the drainage pump 1 is attached to the ceiling plate 61 of the air conditioner 60 in a suspended state by the attachment member 90. At this time, the cover 20 (flat plate portion 27) of the drainage pump 1 and the ceiling plate 61 are arranged to face each other with a gap D therebetween. The distance D is preferably 0.5 mm to 100 mm, and more preferably 1 mm to 50 mm.

  The third embodiment also has the same effect as the first embodiment.

  In particular, in the third embodiment, the distal end portion 92 of the mounting member 90 is a wide portion that swells outward, and slits are formed so as to form a plurality of elastic pieces. The distal end portion 92 is inserted into the through hole 65 of the ceiling plate 61 in a state where the plurality of elastic pieces are elastically deformed toward the center side. The base end portion 93 of the attachment member 90 is a wide portion that swells outward, and slits are formed so as to form a plurality of elastic pieces. The base end portion 93 may be inserted into the notch 28 of the cover 20 with a plurality of elastic pieces elastically deformed toward the center. Since it did in this way, the drainage pump 1 can be easily attached to the ceiling board 61. FIG.

  In the second embodiment described above, instead of the front end portion 82 of the mounting member 80 and the through hole 62 of the ceiling plate 61, as shown in the third embodiment, the front end portion 92 of the mounting member 90 (a plurality of elastic pieces are attached). A structure similar to that of the through-hole 65 and the slit 94 may be adopted.

  Moreover, in each Example mentioned above, it was the structure which has three attachment members (attachment means), However, What is necessary is just to have at least one attachment member. In the configuration having only one mounting member, the location corresponding to the center of gravity of the drainage pump is mounted on the mounted body by the mounting member.

  Moreover, in each Example mentioned above, although the structure which was attached so that the drainage pump 1 might be hung (hang | suspended) on the ceiling board 61 was demonstrated, in addition to these, for example, in 1st Example, the attachment member 70 is attached. The tip 72 may be fixed to the ceiling board 61 with an adhesive or the like. The base end portion 73 of the attachment member 70 may be fixed to the cover 20 (flat plate portion 27) with an adhesive or the like. The diameter of the column part 71 of the mounting member 70 may be the same as or slightly larger than the width of the slit part 64. The diameter of the column portion 71 of the mounting member 70 may be the same as or slightly larger than the width of the portion entering from the entrance of the notch 28. The same applies to the second and third embodiments.

  Although the embodiments of the present invention have been described above, the present invention is not limited to these examples. Those in which those skilled in the art have appropriately added, deleted, and changed the design of the above-described embodiments, and combinations of the features of the embodiments as appropriate, do not depart from the spirit of the present invention. Included in the range.

(First embodiment)
DESCRIPTION OF SYMBOLS 1, 1A ... Drain pump, 5 ... Pump chamber, 10 ... Housing, 11 ... Main-body part, 12 ... Bottom wall part, 13 ... Perimeter wall part, 14 ... Inner peripheral surface, 15 ... Discharge pipe inlet, 16 ... Suction pipe, 17 DESCRIPTION OF SYMBOLS ... Suction port, 18 ... Discharge pipe, 19 ... Discharge port, 20 ... Cover, 21 ... Lower cover, 22 ... Upper cover, 22a ... Upper surface of upper cover, 23 ... Snap fitting mechanism, 24 ... Locking part, 25 ... Installation , 26 ... column part, 27 ... flat plate part, 28 ... notch, 28 a ... edge part of the notch, 29 ... through hole, 30 ... rotating blade, 31 ... shaft part, 32 ... mounting hole, 33 ... large diameter blade 34 ... Small-diameter blades, 35 ... auxiliary blades, 36 ... annular members, 37 ... openings, 40 ... motors, 41 ... drive shafts, 60 ... air conditioners, 61 ... ceiling plates, 62 ... through holes, 62a ... through holes Edge part, 63 ... Insertion part, 64 ... Slit part, 70 ... Mounting member, 71 ... Column part, 2 ... tip, 72a ... lower surface, 73 ... base portion, 73a ... upward surface (second embodiment)
80 ... Mounting member, 81 ... Column, 82 ... Tip, 82a ... Downward surface, 83 ... Base end (third embodiment)
65: Through hole, 65a: Edge of the through hole, 90: Mounting member, 91: Column, 92 ... Tip, 92a ... Down face, 93 ... Base end, 93a ... Up face

Claims (14)

A drainage pump mounting structure comprising: a drainage pump; and at least one mounting means for mounting the drainage pump on a mounted body, wherein the drainage pump is disposed below the mounted body,
The drainage pump includes a rotating blade, a housing that houses the rotating blade, a cover attached to an upper portion of the housing, and a motor that is housed in the cover and rotates the rotating blade.
The drainage pump mounting structure, wherein the cover is attached to the mounted body by the mounting means at a distance from the mounted body.   The drainage pump mounting structure according to claim 1, wherein the drainage pump is attached by the attachment means so as to be suspended from the attached body.   The drainage pump mounting structure according to claim 2, wherein the drainage pump is attached to the attached body by its own weight so as to hang down by its own weight. The attachment means is separate from the cover,
The drainage pump is attached to the mounted body by one end of the mounting means being locked to the mounted body and the other end being locked to the cover. The drainage pump mounting structure according to any one of claims 1 to 3.   The drainage pump installation according to claim 4, wherein the one end of the attachment means is inserted into a through-hole provided in the attached body and is caught by an edge of the through-hole. Construction. The one end of the attachment means has a wide portion that bulges outward,
The through hole of the attached body includes an insertion portion having a shape through which the one end of the attachment means can be inserted, and a slit portion that is continuous with the insertion portion and has a width smaller than the width of the wide portion. The drainage pump mounting structure according to claim 5, wherein the drainage pump mounting structure is provided. The one end of the attachment means has a wide portion that swells outward, and a slit is formed so as to constitute a plurality of elastic pieces,
6. The drainage pump mounting structure according to claim 5, wherein the plurality of elastic pieces are inserted into the through-holes of the mounted body in a state of being elastically deformed toward the center of the one end portion.   The said other end part of the said attaching means is inserted in the through-hole provided in the said cover, and is caught by the edge part of this through-hole, The any one of Claims 4-7 characterized by the above-mentioned. The drainage pump mounting structure described in 1. The other end of the attachment means has a wide portion that swells outward, and a slit is formed so as to constitute a plurality of elastic pieces,
The drainage pump mounting structure according to claim 8, wherein the plurality of elastic pieces are inserted into the through holes of the cover in a state of being elastically deformed toward the center of the other end. The attachment means is provided integrally with the cover,
The said drainage pump is attached to this to-be-attached body by the edge part of the said attachment means being latched by the said to-be-attached body, The Claim 1 characterized by the above-mentioned. The drainage pump mounting structure.   11. The drainage pump mounting structure according to claim 10, wherein an end of the mounting means is inserted into a through hole provided in the mounted body and is caught by an edge of the through hole. The end of the attachment means has a wide portion that bulges outward,
The through-hole of the attached body includes an insertion part having a shape through which an end of the attachment means can be inserted, and a slit part connected to the insertion part and having a width smaller than the width of the wide part. The drainage pump mounting structure according to claim 11. The end of the attachment means has a wide portion that swells outward, and a slit is formed to form a plurality of elastic pieces,
The drainage pump mounting structure according to claim 11, wherein the plurality of elastic pieces are inserted into the through holes of the mounted body in a state of being elastically deformed toward the center side of the end portion. The drainage pump mounting structure according to any one of claims 1 to 13, wherein the mounting means has a bending elastic modulus smaller than at least one of the mounted body and the cover.

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