JP2020165420A - Drainage pump for air conditioning device having mounting structure - Google Patents

Abstract

To provide a drainage pump for an air conditioning device having a mounting structure.SOLUTION: A drainage pump for an air conditioning device having a mounting structure, includes a holder, a housing and a lid. The housing is arranged above the holder to define a drainage chamber with the holder. A drainage impeller is placed in the drainage chamber. A motor is housed in the housing. The lid covers the housing. The housing has a plurality of fixed leg members. The plurality of fixed leg members are formed so as to extend obliquely upward and outward from an outer peripheral surface of the housing, to be fixed to the outer peripheral surface of the housing at a part of them, and to extend from the top of the housing to a predetermined height at another part. The plurality of fixed leg members have a plate-shaped body portion, two reinforcement ribs and a flat portion. Two reinforcement ribs are located at both sides of the plate-shaped body and are in parallel with each other. The flat portion is located at the top of the fixed leg member and has a fixing hole.SELECTED DRAWING: Figure 2

Description

The present invention relates to a drainage device, and more particularly to a drainage pump for an air conditioner having a mounting structure.

The drainage pump for an air conditioner published in Patent Document 1 has a housing composed of an upper motor case, a tubular body, and a lower drainage case, and has three upward fixing leg members arranged in the motor case and a motor. It has a plurality of convex ear portions formed by extending outward from the case, and a plurality of fixed pillar portions formed extending outward from the tubular body portion.
The drainage pump for the air conditioner is attached to the air conditioner by three fixed leg members. When combining the motor case and the tubular body, the motor case can be fixed to the tubular body by inserting bolts into the convex ears and tightening them to the fixed pillars.

The drainage pump for an air conditioner published in Patent Document 2 includes three fixed leg members distributed in an unequal triangle on the top of the motor case (reference numeral 2 in the figure), and a plurality of fixed leg members extending outward from the motor case. Has a convex ear portion (reference numeral 21 in the figure) and a plurality of attachment portions (reference numeral 12 in the figure) formed by extending outward from a pump case (reference numeral 1 in the figure) located at an intermediate portion. ..
The drainage pump for the air conditioner is attached to the air conditioner by three fixed leg members. When fixing the upper plate of the motor case and the pump case, the motor case can be fixed to the pump case by inserting a bolt into the convex ear portion and tightening it to the mounting portion.

The drainage pump for an air conditioner published in Patent Document 3 is a case in which the entire housing stores the motor and its partial motor accessories.
The motor (reference numeral 60 in the figure) is positioned at the upper part of the case. The motor accessories (the drive shaft of reference numeral 110 and the water retention plate of reference numeral 30) are located in the middle part of the case. In the proposal, the housing has three fixed leg members at the top and is attached to the air conditioner by the three fixed leg members. As shown in FIG. 4 of the draft, the housing further has convex portions and mounting holes that fit into each other.

According to the above-mentioned prior art, when arranging the fixed leg member in the drainage pump, it has been clarified that the arrangement method of the fixed leg member differs depending on the state in which the motor is arranged at the top in the housing.

In the prior art described above, when the method of arranging the fixed leg member on the lid located at the top of the housing or the top of the motor case is adopted, the housing is connected to the upper lid or the motor case by another connecting member. Not only is the entire structure relatively loose, but when the drainage pump operates, noise or vibration is likely to occur due to the gaps created after the assembly work is completed. When the method of arranging the fixed leg members in the housing is adopted, there arises a problem of how to make the convex portions and the mounting holes correspond to each other in order to combine the motor case and the housing.

Taiwan Patent I612921 Japanese Patent No. 4874765 Japanese Patent No. 5934515

An object of the present invention is to provide a drainage pump for an air conditioner having a mounting structure. The structure of the drainage pump for an air conditioner having a mounting structure is different from that of the conventional technique because the fixed leg member is arranged in the housing. Therefore, there is no problem when combining the motor case and the housing.

An air conditioner drainage pump having a mounting structure for solving the above-mentioned problems includes a holder, a housing, and a lid. The holder has a water inlet formed at the bottom and a drainage port formed at the side surface. The housing has a cylindrical shape and is arranged above the holder to form a drainage chamber between the housing and the holder. The water inlet and drain are connected to the drain chamber. The housing has a motor containment chamber and an overflow containment chamber. The drainage impeller is placed in the drainage chamber. The motor is stored in the motor storage chamber. The overflow containment chamber is located below the motor containment chamber and has a perforation at the bottom leading to the drainage chamber. The drain impeller and the drive shafts of the motor are connected to each other by perforations. The lid is placed in the housing and covers the motor containment chamber. The housing also has a plurality of fixed leg members. The plurality of fixed leg members are formed so as to extend obliquely upward and outward from the outer peripheral surface of the housing, one portion is fixed to the outer peripheral surface of the housing, and another portion extends from the top of the housing to a predetermined height. The plurality of fixed leg members have a plate-shaped body portion, two reinforcing ribs and a flat portion. The two reinforcing ribs are located on both sides of the plate-shaped body and are parallel to each other. The flat portion is located at the top of the fixed leg member and has a fixing hole.

Due to the structural features described above, the present invention not only solves the problem of loosening the structure due to the fixed leg members being placed on the lid by conventional techniques, but also fixing, because the fixed leg members are placed in the housing. The lid can be attached to the housing without interfering with the leg members. Therefore, the present invention not only has a structure different from the conventional technique, but also does not cause a problem when mounting the motor case, solves a problem encountered when combining the motor case and the housing, and improves the effect. it can.

It is a perspective view which shows the drainage pump for an air conditioner which has the mounting structure by one Embodiment of this invention. It is an exploded perspective view which shows the drainage pump for an air conditioner which has the mounting structure by one Embodiment of this invention. It is a part of the exploded perspective view which shows the drainage pump for an air conditioner which has the mounting structure by one Embodiment of this invention. FIG. 5 is an exploded perspective view of a drainage pump for an air conditioner having a mounting structure according to an embodiment of the present invention as viewed from below. It is a top view which shows the drainage pump for an air conditioner which has the mounting structure by one Embodiment of this invention. It is sectional drawing along the line 6-6 in FIG. It is a side view which shows the state which the drainage pump for an air conditioner which has the mounting structure by one Embodiment of this invention is mounted. FIG. 5 is an exploded perspective view showing a structure in which a housing and a holder are connected by a hook portion and a fitting portion in a drainage pump for an air conditioner having a mounting structure according to an embodiment of the present invention.

Hereinafter, a drainage pump for an air conditioner having a mounting structure according to the present invention will be described with reference to the drawings.

(One Embodiment)
As shown in FIGS. 1 to 6, the air conditioner drainage pump 10 having the mounting structure according to the embodiment of the present invention includes a holder 11, a housing 21, and a lid 31.

The holder 11 has a water suction port 12 formed at the bottom and a drain port 14 formed at the side surface.

The housing 21 has a cylindrical shape and is arranged above the holder 11 so as to form a drainage chamber 18 between the housing 21 and the holder 11. The water intake port 12 and the drainage port 14 are connected to the drainage chamber 18. The housing 21 has a motor storage chamber 22 and an overflow storage chamber 24. The drain impeller 19 is arranged in the drain chamber 18. The motor 23 is stored in the motor storage chamber 22. The overflow storage chamber 24 is located below the motor storage chamber 22.
The housing 21 has a plurality of overflow holes 241 formed on the side surface of the overflow storage chamber 24, a perforation 26 formed at the bottom, and a plurality of fitting portions 28 formed on the outer surface. The water in the overflow storage chamber 24 flows out from the overflow hole 241. The perforation 26 is connected to the drainage chamber 18. The drive shafts of the drain impeller 19 and the motor 23 are connected to each other by a perforation 26.

The lid 31 is arranged in the housing 21 to cover the motor storage chamber 22 and has a plurality of hook portions 38. In the present embodiment, the hook portions 38 are formed so as to extend downward from the outside of the lid 31, and the number of the hook portions 38 is three. The lid 31 is fixed to the housing 21 by hooking the three hook portions 38 on the plurality of fitting portions 28.

The housing 21 further has three fixed leg members 29. The three fixed leg members 29 are formed so as to extend diagonally upward and outward from the outer peripheral surface of the housing 21, one portion is fixed to the outer peripheral surface of the housing 21, and another portion extends from the top of the housing 21 to a predetermined height.
Each fixed leg member 29 has a plate-shaped body portion 291 and two reinforcing ribs 292 and a flat portion 294. The two reinforcing ribs 292 are located on both sides of the plate-shaped body 291 and are parallel to each other. The flat portion 294 is located at the top of the fixed leg member 29 and has a fixing hole 295. If the bolt 99 is inserted into the fixing hole 295, the flat portion 294 can be tightened and fixed to the air conditioner 91. The three hook portions 38 and the three fixed leg members 29 are arranged at intersections. That is, if the hook portion 38 is located between the two fixed leg members 29, the fixed leg member 29 is located between the two hook portions 38. In the present embodiment, the number of the fixed leg members 29 is three, but the number is not limited to this, and two or four may be used depending on the situation.

In the manufacturing process, the three fixed leg members 29 and the housing 21 are integrally molded. That is, the plate-shaped body portion 291 and the reinforcing rib 292 of the fixed leg member 29 are integrally molded with the housing 21. Since the plate-shaped body portion 291 of the fixed leg member 29 is formed so as to extend diagonally upward from the outer peripheral surface of the bottom portion of the housing 21, the fixed leg member 29 is inclined upward and outward as shown in the drawing.
The thickness of the portion of the plate-shaped body portion 291 of the fixed leg member 29 located between the bottom and the top of the housing 21 is gradually increased, and the thickness of the portion beyond the top of the housing 21 is uniform. That is, as shown in FIG. 6, the thickness of the portion of the plate-shaped body portion 291 of the fixed leg member 29 located between the outer peripheral surface of the bottom portion of the housing 21 and the top portion gradually increases along the radial direction of the housing 21. , The thickness of the portion beyond the top of the housing 21 is uniform. The thickness of the two reinforcing ribs 292 of the fixed leg member 29 gradually increases from the bottom of the surface of the plate-shaped body portion 291. The surface of the plate-shaped body 291 is lower than that of the two reinforcing ribs 292.

The three fixed leg members 29 do not interfere with the top of the housing 21. That is, since the plate-shaped body portion 291 of the three fixed leg members 29 has a wider range surrounded by the portion located at the top of the housing 21 than the lid 31, when the lid 31 is attached to the housing 21, the lid 31 has three fixed legs. It can cover the top of the housing 21 without being disturbed by the member 29. Therefore, the work of combining the lid 31 and the housing 21 becomes easy.

The above is the description of the construction of this embodiment. Subsequently, the mounting method will be described.

As shown in FIGS. 6 and 7, when the air conditioner drainage pump 10 having a mounting structure is mounted on the air conditioner 91, a plurality of bolts 99 are inserted into the fixing holes 295 of the three fixing leg members 29 to form the mounting structure. The drainage pump 10 for the air conditioner may be tightened and fixed to the air conditioner 91.
The three fixed leg members 29 of the present invention are formed so as to extend upward from the outer peripheral surface of the bottom portion of the housing 21. That is, since the three fixed leg members 29 support the housing 21 by being fixed to the housing 21, the structure in which the fixed leg members are arranged on the lid by the conventional technique has an excellent fixing effect. In other words, since the three fixed leg members 29 are formed so as to extend upward from the bottom of the housing 21, the bottom of the housing 21 is fixed by the three fixed leg members 29, which produces an excellent fixing effect in the prior art. Can be done. Since the three fixed leg members 29 extend from the top of the housing 21 to a predetermined length, the housing 21 is in a state of hanging from the air conditioner 91. The vibration generated by the motor 23 operating and rotating the drainage impeller 19 is absorbed by the three fixed leg members 29 hanging from the air conditioner 91 and is reduced, so that the noise is reduced.

Since the present invention employs a method in which the housing 21 is covered with the lid 31 without connecting the three fixed leg members 29 and the lid 31, the motor 23 is stored in the motor storage chamber 22 of the housing 21 and the lid 31 is covered. The installation work of the motor 23 is completed. Therefore, the present invention does not need to consider the problems encountered when combining the motor case and the housing, and can solve the problems of the prior art described above.

To summarize the above description, the present invention does not adopt the method of arranging the fixed leg member 29 on the lid 31, but arranges the fixed leg member 29 on the housing 21, so that the fixed leg member in the prior art is arranged on the lid. It can solve the problem that the structure becomes loose due to being used. Further, the fixed leg member 29 is arranged in the housing 21. The lid 31 covers the housing 21 without interfering with the fixed leg member 29. Therefore, the present invention not only has a structure different from that of the prior art, but also does not cause a problem when mounting the motor case, solves a problem encountered when combining the motor case and the housing, and can improve the effect. ..

As shown in FIG. 3, the holder 11 and the housing 21 are tightened and fixed by a plurality of bolts 99, but the present invention is not limited to this, and as shown in FIG. 8, a plurality of hook portions 118 and a plurality of fitting portions are used. They may be fitted together by 28.

10 Drainage pump for air conditioner with mounting structure 11 Holder 118 Hook part 12 Water intake port 14 Drainage port 18 Drainage room 19 Drainage impeller 21 Housing 22 Motor storage room 23 Motor 24 Overflow storage room 241 Overflow hole 26 Perforation 28 Fitting part 29 Fixed leg member 291 Plate-shaped body 292 Reinforcing rib 294 Flat part 295 Fixed hole 31 Lid 38 Hook part 91 Air conditioner 99 Bolt

Claims (7)

With holder, housing and lid,
The holder has a water inlet formed on the bottom and a drainage port formed on the side surface.
The housing has a cylindrical shape and is arranged above the holder to form a drainage chamber between the housing and the holder, and the drainage chamber is connected to the water suction port and the drainage port.
The housing has a motor containment chamber and an overflow containment chamber, a drain impeller is arranged in the drainage chamber, the motor is housed in the motor containment chamber, and the overflow containment chamber is located below the motor containment chamber. It has a perforation at the bottom that connects to the drainage chamber, and the drainage impeller and the drive shaft of the motor are connected to each other by the perforation.
The lid is placed in the housing and covers the motor containment chamber.
The housing has a plurality of fixed leg members
The plurality of fixed leg members are formed so as to extend obliquely upward and outward from the outer peripheral surface of the housing, one portion is fixed to the outer peripheral surface of the housing, and another portion extends from the top of the housing to a predetermined height.
The plurality of fixed leg members have a plate-shaped body portion, two reinforcing ribs and a flat portion.
The two reinforcing ribs are located on both sides of the plate-shaped body and are parallel to each other.
The flat portion is located at the top of the fixed leg member and has a fixing hole.
A drainage pump for air conditioners that has a mounting structure. The first aspect of the present invention, wherein the plate-shaped body portion of the plurality of fixed leg members is integrally molded with the housing and is formed so as to extend obliquely upward and outward from the outer peripheral surface of the bottom portion of the housing. Drainage pump for air conditioners with the mounting structure of. In the plate-shaped body of the fixed leg member, the thickness of the portion located between the outer peripheral surface of the bottom of the housing and the top is gradually increased, and the thickness of the portion beyond the top of the housing is uniform. A drainage pump for an air conditioner having the mounting structure according to claim 2. The two reinforcing ribs of the fixed leg member are characterized in that the thickness gradually increases from the bottom of the surface of the plate-shaped body portion, and the surface portion of the plate-shaped body portion is lower than the surface portion of the two reinforcing ribs. The drainage pump for an air conditioner having the mounting structure according to claim 1. The lid has a plurality of hook portions, the plurality of the hook portions extend downward from the outside of the lid, the housing further has a plurality of fitting portions on the outer surface, and the lid has a plurality of fitting portions. The drainage pump for an air conditioner having the mounting structure according to claim 1, wherein the hook portion is fixed to the housing by being hooked on the plurality of fitting portions. Since the plate-shaped body portion of the plurality of fixed leg members has a wider range surrounded by a portion located at the top of the housing than the lid, when the housing is covered with the lid, the plurality of fixed leg members cover the lid. The drainage pump for an air conditioner having the mounting structure according to claim 1, wherein the drainage pump does not interfere with the above. The drainage pump for an air conditioner having the mounting structure according to claim 1, wherein the plurality of fixed leg members do not interfere with the top of the housing, and therefore the lid covers the top of the housing.

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