JP5014304B2 - Drain socket of air conditioner and outdoor unit of air conditioner having the same - Google Patents

Description

  The present invention relates to a drain socket attached to a drain hole of an outdoor unit of an air conditioner and an outdoor unit of an air conditioner including the drain socket.

The outdoor unit of the conventional air conditioner has a drain hole for draining drain water on the bottom plate. One end of the drain socket is fixed to the drain hole, and a drain hose for guiding drainage from the drain drain hole to a specific position is connected to the other end of the drain socket (see, for example, Patent Document 1). ). This type of drain socket is prepared corresponding to the diameter of the drain hole, and is designed individually for each hole diameter.
Japanese Patent No. 3882910 (FIG. 1)

  In the outdoor unit of the conventional air conditioner, the hole diameter of the drain hole differs depending on the size of the outdoor unit. The reason why the drain hole differs depending on the size of the outdoor unit is as follows. The outdoor unit having a small capacity has a small hole diameter because the size of the unit itself is small and the amount of drain water discharged is small. On the other hand, an outdoor unit having a large capacity has a large unit size and a large drain water discharge amount. Therefore, if the drainage hole is made small, there is a risk of freezing in the drainage process in cold districts. For this reason, the diameter is increased. Thus, since there are a plurality of types of hole diameters of drain holes, there are a plurality of types of drain sockets corresponding thereto, and it is necessary to create a mold for each type. Therefore, production management is difficult and cost (mold cost) is high. In addition, the drain socket can be purchased as a separately sold part by the user at the store, but if there are a plurality of types of drain holes, there is a risk that the drain socket will be purchased by mistake.

  The present invention has been made to solve the above-described problems, and provides a drain socket that can be shared by a plurality of drain holes having different hole diameters and an outdoor unit of an air conditioner having the drain socket. With the goal.

A drain socket for an air conditioner according to the present invention is a drain socket for an air conditioner in which one is connected to a drain hole provided in a bottom plate of an outdoor unit of the air conditioner and a drain water discharge hose is connected to the other. The drain socket includes a drain hole side connection portion having a recess communicating with the drain hole, and a hose side connection portion connected to the recess and connected to the drain water discharge hose. A plurality of pairs of opposing locking portions that can be locked to each of a plurality of drain holes having different diameters are provided corresponding to the plurality of drain holes having different diameters .

According to this invention, a plurality of sets of opposing locking portions that can be locked to each of a plurality of drain holes with different diameters are provided corresponding to the plurality of drain holes with different diameters. It is possible to obtain a drain socket that can be shared by a plurality of drain holes having different sizes.

FIG. 1 is an exploded perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention. FIG. 2 is a perspective view of a drain socket mounting portion according to an embodiment of the present invention.
In FIG. 1, the exterior configuration of the outdoor unit includes a bottom plate 1, a front panel 2, a top panel 3, and a back panel 4 that serve as a foundation, and is configured in a substantially rectangular shape. A fan guard 5 is attached to the opening of the front panel 2. The outdoor unit includes a propeller fan 6, a fan motor 7, a fan motor fixing plate 8, a wiring connection cover 9, and an outdoor heat exchanger 10. The bottom plate 1 is provided with a drain hole 11 for discharging drain water. One end of a drain socket 20 is connected to the drain hole 11, and a drain water discharge hose 13 is connected to the other end of the drain socket 20. . Then, when water attached to the pipe (not shown), the pipe connection (not shown), the outdoor heat exchanger 10 in the outdoor unit and the outdoor heat exchanger 10 is dropped on the bottom plate 1 by the start of the operation of the air conditioner, the drain from the drain hole 11 is drained. It is discharged to the drain water discharge hose 13 through the socket 20. A foot 12 is fixed to the bottom plate 1.

  In general, there are a plurality of types of drain holes 11 opened in the bottom plate 1 according to the depth W of the outdoor unit. Although it is better that the hole diameter is large, if the depth W of the outdoor unit is small, the installation space is insufficient, and only a small hole diameter can be created. Therefore, it is difficult to unify the drain holes 11 with a large hole diameter regardless of the depth W of the outdoor unit, and therefore, there are currently a plurality of hole diameters. On the other hand, when trying to unify with a small hole diameter, a model with a large capacity (model with a large depth W of the outdoor unit) cannot cope with a large amount of drained drainage.

  Therefore, the drain socket 20 of the present example has a structure that can be opposed to the plurality of drain holes 11 having different hole diameters, and details of the structure will be described with reference to FIGS. FIG. 3 is an enlarged perspective view of the drain socket according to the embodiment of the present invention. FIG. 4 is a cross-sectional view for explaining a method for assembling the drain socket in one embodiment of the present invention. FIG. 5 is a cross-sectional view after assembly of the drain socket and the bottom plate (large diameter of the drain hole 11) in one embodiment of the present invention. FIG. 6 is a cross-sectional view after assembly of the drain socket and the bottom plate according to the embodiment of the present invention (the diameter of the drain hole 11 is small). FIG. 7 is an enlarged view of a portion surrounded by a circle in FIG.

  In the drain socket 20, a drain hole side connection portion 22 connected to the drain hole 11 of the bottom plate 1 from the outside of the outdoor unit and a tubular hose side connection portion 23 communicating with the drain hole side connection portion 22 are integrated. It has the structure formed automatically. The drain hole side connection portion 22 has a water tray 21 which is a recess communicating with the drain hole 11, and the water tray 21 is directed downward from the connection portion with the drain hole 11 (with the hose side connection portion 23. It is formed in the shape of a slot that decreases in diameter (toward the communication port).

  And the taper surface of the water receiving tray 21 has a plurality of pairs of opposing locking portions 24 that can be locked to each of the plurality of drain holes 11 having different diameters (a case where two sets are formed in FIG. 3). Ex) It is formed. Each of the two pairs of locking portions 24 is disposed so as to be opposed to each other with the center of the water tray 21 as the center. In this example, the pair of locking portions 24 are at positions shifted by about 90 degrees with respect to the center of the water tray 21. Is formed. Each pair has a different distance between the pair of locking portions 24, and the pair of locking portions 24 having a shorter distance (hereinafter sometimes referred to as a small-diameter locking portion 24a) have a small diameter. A pair of locking portions 24 (hereinafter sometimes referred to as large-diameter locking portions 24b) that are for drainage holes and have a longer distance are provided for drainage holes that are larger in diameter than small-diameter drainage holes. ing. With this configuration, it is possible to cope with drain holes 11 having two types of hole diameters.

  Each locking part 24 stands from a tapered surface, is inserted into the drainage hole 11 from the outside of the outdoor unit, and has a locking piece 25 having a claw 25a that can be locked to the opening edge 11a around the drainage hole 11, It comprises a clamping piece 26 that stands up from the tapered surface and clamps the opening edge 11a around the drainage hole 11 with the claw 25a. When connecting the drain socket 20 to the drain hole 11, the claw 25a of the locking part 24 of the drain socket 20 is inserted into the drain hole 11 from the outside of the bottom plate 1 as shown by the arrow in FIG. The connection is fixed by sandwiching the opening edge 11 a around the drainage hole 11 with the piece 26. 5 is a cross-sectional view when a pair of large-diameter locking portions 24b of the drain socket 20 are connected to the large-diameter drain hole 11, and FIG. 6 is a pair of small-diameter locking portions 24a to the small-diameter drain hole 11. Sectional drawing at the time of connecting is shown.

  As shown in FIG. 5, when the drainage hole 11 has a large diameter, the drain socket 20 is connected to the drainage hole 11 using a pair of large-diameter locking portions 24 b. When a pair of large-diameter locking portions 24b are used, the pair of small-diameter locking portions 24a are located inside the drain hole 11 so that they do not interfere with the connection, but cutting them lowers the flow resistance. I can do it.

  On the other hand, as shown in FIG. 6, for the small-diameter drain hole 11 having a smaller diameter than the large-diameter drain hole 11, the drain socket 20 is connected to the drain hole 11 using a pair of small-diameter locking portions 24a. Connect to. When connecting the pair of small diameter locking portions 24a of the drain socket 20 to the small diameter drain hole 11, if the drain socket 20 is to be attached to the drain hole 11 as it is, the locking piece of the large diameter locking portion 24b is used. 25 hits the bottom plate 1 and cannot be assembled.

  Therefore, in this example, as shown in FIG. 7, a notch 27 as a cutting guide is provided at the base of the locking piece 25 of the large-diameter locking portion 24 b of the drain socket 20. The locking piece 25 of the locking part 24b is cut and assembled. Further, the cut 27 is provided at a position lower than the height of the upper surface of the sandwiching piece 26 because the notch 27 interferes with the bottom plate 1 at the time of assembly when it is located at a position higher than the upper surface of the sandwiching piece 26. In addition, when providing the notch 27 also in the small diameter latching | locking part 24a side and connecting the drain socket 20 to the large diameter drain hole 11, it is desirable to cut | disconnect the small diameter latching | locking part 24a. Thereby, it can prevent that the small diameter latching | locking part 24a becomes flow path resistance as mentioned above.

Next, an attachment operation when connecting the drain socket 20 configured as described above to the drain hole 11 will be described.
When the hole diameter of the drain hole 11 opened in the bottom plate 1 is large, the large-diameter locking portion 24b is used. For this reason, first, the small-diameter locking portion 24 a is cut using the cuts 27. Then, the drain hole side connection portion 22 of the drain socket 20 is opposed to the drain hole 11 of the bottom plate 1 from the outside of the bottom plate 1, and the pair of large-diameter locking portions 24 b are pushed toward the drain hole 11. As a result, the claws 25a of the locking pieces 25 of the pair of large-diameter locking portions 24b are inserted into the drainage holes 11 and locked to the opening edges 11a around the drainage holes 11, and the claws 25a and the sandwiching pieces 26 The opening edge 11a is sandwiched between the gaps. Thereby, the drain socket 20 is connected and fixed to the large-diameter drain hole 11.

  On the other hand, when the hole diameter of the drain hole 11 opened in the bottom plate 1 is small, the small diameter locking portion 24a is used. For this reason, first, the large-diameter locking portion 24 b is cut using the cuts 27. Then, in the same manner as described above, the pair of large-diameter locking portions 24 b are pushed toward the drain hole 11, and the drain socket 20 is connected and fixed to the small-diameter drain hole 11.

  As described above, the drain socket 20 of this embodiment has a plurality of opposing locking portions 24 that can be locked to each of the plurality of drain holes 11 having different diameters, corresponding to the plurality of diameters. Since it is assembled, it can be shared for drain holes with different hole diameters. That is, even when there are a plurality of types of hole diameters of the drain holes 11, it is possible to cope with one drain socket 20, and it is possible to eliminate the conventional inconvenience that it is necessary to create a mold for each type.

  In FIG. 3, an example in which the pair of small-diameter locking portions 24a and the pair of large-diameter locking portions 24b of the drain socket 20 are shifted by 90 degrees has been illustrated and described, but the drain socket 20 is limited to 90 degrees. As shown in FIG. 8, it can be set to an arbitrary angle (60 degrees in the example of FIG. 8) (however, 90 degrees is desirable for mold production).

  Further, in this embodiment, the example in which two pairs of the locking portions 24 are provided is illustrated and described. However, as shown in FIG. 9, a plurality of pairs (three in FIG. 9) of a pair of locking portions are provided. The part 24 may be provided. In this case, the drain socket 20 that can accommodate three types of drain holes with different diameters can be obtained.

It is the perspective view which decomposed | disassembled the outdoor unit of the air conditioner in one embodiment of this invention. It is a perspective view of the attachment part of the drain socket in one embodiment of this invention. It is an expansion perspective view of the drain socket in one embodiment of this invention. It is an assembly sectional view of a drain socket in one embodiment of this invention. It is sectional drawing at the time of connecting a pair of large diameter latching | locking parts of a drain socket to a large diameter drainage hole. It is sectional drawing at the time of connecting a pair of small diameter latching | locking part of a drain socket to a small diameter drainage hole. FIG. 5 is an enlarged view of a portion surrounded by a circle in FIG. 4. It is the figure which showed the other example of arrangement | positioning of a pair of latching | locking part. It is a perspective view of the drain socket provided with 3 pairs of a pair of latching | locking parts.

Explanation of symbols

  1 bottom plate, 2 front panel, 3 top panel, 4 back panel, 5 fan guard, 6 propeller fan, 7 fan motor, 8 fan motor fixing plate, 9 wiring connection cover, 10 outdoor heat exchanger, 11 drainage hole, 11a Open edge, 12 feet, 13 Drain water discharge hose, 20 Drain socket, 21 Water tray (recessed part), 22 Drainage hole side connection part, 23 Hose side connection part, 24 Locking part, 24a Small diameter locking part, 24b Large diameter locking part, 25 locking piece, 25a claw, 26 clamping piece 27 cut.

Claims (8)

A drain socket of an air conditioner in which one is connected to a drain hole provided in a bottom plate of an outdoor unit of the air conditioner and a drain water discharge hose is connected to the other,
The drain socket includes a drain hole side connection portion having a recess communicating with the drain hole, and a hose side connection portion communicating with the recess and connected to the drain water discharge hose. The portion is provided with a plurality of pairs of opposing locking portions that can be locked to each of a plurality of drain holes with different diameters corresponding to the plurality of drain holes with different diameters. Harmonic machine drain socket. Wherein the concave portion of the drain hole side connecting portion, said being formed in mortar form that the diameter becomes smaller toward the communication opening portion of said hose-side connecting portion from the connecting portion between the drain hole, tapered over the recess The drain socket for an air conditioner according to claim 1, wherein a pair of engaging portions facing each other are formed on a surface.   The locking portion is erected from the tapered surface and has a locking piece having a claw that can be locked to the drainage hole from the outside of the bottom plate, and is erected from the tapered surface and between the claw The drain socket for an air conditioner according to claim 2, wherein the drain socket is configured by a holding piece that holds an opening edge around the drain hole.   The drain of the air conditioner according to any one of claims 1 to 3, wherein a cutting guide for separating the locking piece from the recess is provided on the locking piece of the locking portion. socket.   The pair of locking portions are disposed so as to face each other with the center of the recess as a center, and each of the sets is disposed on the recess so as to be displaced from each other. The drain socket of the air conditioner in any one of Claims 1 thru | or 4.   The drain socket for an air conditioner according to any one of claims 1 to 5, wherein the plurality of sets are two sets.   The drain socket for an air conditioner according to claim 6, wherein the two pairs of engaging portions are arranged to be shifted by approximately 90 degrees about the center of the concave portion.   The outdoor unit of the air conditioner provided with the drain socket of the air conditioner in any one of Claims 1 thru | or 7.

Images