JP2006046830A - Air conditioner outdoor unit - Google Patents

Abstract

[PROBLEMS] To improve the installation by making the conduit easily routed behind the outdoor unit, and to collect the refrigerant pipe and the conduit and cover them together with an electrical cover. An outdoor unit for an air conditioner equipped with
A conduit mounting plate (3) is formed by bending two end portions of a substantially trapezoidal plate in the same direction into an L-shaped cross section, two through holes (3a) on one vertical surface, and an outdoor unit (1). The parallel fixing part 3c and the trapezoidal part 3d are provided with two insertion holes 3e. Then, the end of the conduit 2 provided with the thread 2a is inserted into the through hole 3a of the conduit mounting plate 3, and the nut 11 corresponding to the thread 2a is screwed to the end of the conduit 2 so that the conduit 2 is It is fixed to the conduit mounting plate 3. The screw 7 is inserted into the insertion hole 3 e and screwed into the screw hole 6 b to fix the conduit mounting plate 3 to the terminal block mounting plate 6.
[Selection] Figure 1

Description

  The present invention relates to an outdoor unit for an air conditioner, and more particularly, to a conduit mounting structure in which an electric cable connected to a side surface of the outdoor unit is stored.

  Conventionally, in order to connect wiring and a refrigerant pipe with the outside in an outdoor unit of an air conditioner, for example, the structure shown in FIG. 7A is a partial view seen from the front of the outdoor unit, FIG. 7B is a side view, and FIG. 7C is a front view of the electrical cover.

  In the outdoor unit 40 of the air conditioner, the electrical cover 51 constitutes a part of the outer box 41 and protects the electrical component 43 from external moisture, dust, etc., and facilitates service, as well as the indoor unit 40. It also has a function of protecting the electric wire 44 and the connection terminal 45 connected to the electrical component 43 and a function of improving the exterior property.

  For this reason, the electrical equipment cover 51, which integrates the function of simultaneously covering the connection terminal 45, the connection valve 46, and the connection pipe 49, allows the electric wires to cover at least the side surface of the outdoor unit and the cover of the three main parts. 44 is covered. (For example, refer to Patent Document 1).

  However, the highly insulating conduit (pipe for electric wires) used in the United States is made of metal or synthetic resin, and has the problem that it is durable but poor in flexibility, and the electric wire is stored in the conduit. However, as shown in FIG. 7, the electric wire 44 and the connection pipe 49 could not be covered with the electrical cover 51 at the same time.

  Therefore, when the conduit 62 is used as shown in the perspective view of the outdoor unit 61 of the air conditioner of FIG. 8, a method of fixing the conduit 62 to the side surface of the outdoor unit 61 via the conduit mounting sheet metal 63 is adopted. Yes.

The side surface of the outdoor unit 61 is provided with a rectangular wiring window 61a for guiding the electric wire 65 into and out of the casing and a conduit mounting hole 61b. The end of the conduit 62 provided with a thread 62a is provided on the outer periphery of the conduit 62. The fitting plate 63 (conduit fixing portion) is inserted into the through hole 63a, and a nut 64 corresponding to the thread 62a is screwed to the end portion of the conduit 62, thereby fixing the conduit 62 to the conduit mounting plate 63.
Then, the conduit mounting plate 63 is fixed to the outdoor unit 61 with screws 70, the electric wires 65 stored in the conduit 62 are routed through the outdoor unit 61, and taken out from the wiring unit 61a to the outside of the outdoor unit 61 again. The terminal 61 is exposed to the window 61a. The wiring window 61 a and the operation valve 68 are covered with the electrical cover 67, and the electrical cover 67 is fixed to the side surface of the outdoor unit 61 with screws 69.

  However, because conduits used outdoors place importance on durability, they are not very flexible, and when conduits are attached to the side of an outdoor unit, as shown in FIG. In summary, it cannot be directed to the back of the outdoor unit in parallel with the side of the outdoor unit, and only the conduit is piped around and the exterior property is deteriorated. Since priority was given to the routing of the conduit, there was a problem in that the installation location of the outdoor unit might be restricted, and the installation could be impaired.

JP-A-6-213480 (second page, FIG. 1)

  The present invention solves the above-mentioned problems, improves the installation by adopting a structure in which the conduit is easily routed to the rear of the outdoor unit, collects the refrigerant pipe and the conduit, and collects them together with the electrical cover. It aims at providing the outdoor unit of the air conditioner provided with the conduit mounting structure which can be covered.

In order to solve the above-described problems, the present invention provides an outdoor unit for an air conditioner that includes a conduit fixing portion that fixes a conduit end portion that stores an electric wire and a terminal block that connects the electric wire on one side surface of a housing. In
The conduit fixing portion has a structure including a conduit mounting plate that includes a through hole in a plate surface perpendicular to one side surface of the outdoor unit, and that fixes an end of the conduit to the through hole.

  In addition, a wiring window for guiding the electric wire into the housing and the terminal block disposed in the wiring window are fixed to one side surface of the outdoor unit, and are parallel to the side surface of the housing and downward from the wiring window. And a terminal block mounting plate for fixing the conduit mounting plate on a surface extending toward the surface.

  The conduit mounting surface of the conduit mounting plate is structured to be inclined in the front-rear direction of the outdoor unit.

Alternatively, on one side surface of the housing, a conduit fixing portion that fixes the end of the conduit that stores the electric wire, a wiring window that guides the electric wire into the housing, and a terminal block disposed in the wiring window are provided. In outdoor unit of air conditioner,
The conduit fixing portion is formed of a box body having a surface corresponding to the wiring window, and has a through hole on a side surface of the box body that is perpendicular to one side surface of the outdoor unit. An end portion is fixed, and a structure is formed by selectively selecting from a plurality of directions on one side of the outdoor unit and fixing.

Or, in an outdoor unit of an air conditioner, comprising a conduit fixing portion that fixes an end of a conduit that stores an electric wire on one side surface of the housing, and a wiring window that guides the electric wire into the housing.
The conduit fixing portion is formed by forming a hollow pipe in an L shape, fixing the end of the conduit to one end of the pipe, and rotatably fixing the other end to the wiring window. It becomes the structure which becomes.

By using the above means, according to the outdoor unit of an air conditioner according to the present invention,
The invention according to claim 1 is such that the conduit fixing portion includes a conduit mounting plate having a through hole in a plate surface perpendicular to one side surface of the outdoor unit and fixing the end of the conduit to the through hole. By
In installing an outdoor unit, the space in the adjacent side direction can be made the smallest dimension, so that installation is improved and excessive conduit routing can be reduced.

In the invention according to claim 2, the wiring window for guiding the electric wire into the housing and the terminal block disposed in the wiring window are fixed to one side surface of the outdoor unit, the wiring window is parallel to the housing side surface, and By providing a terminal block mounting plate for fixing the conduit mounting plate on the surface extending downward,
Even if rainwater enters the conduit mounting plate, it can be prevented that the rainwater wets the connection portion and the power supply is short-circuited.
In addition, when the conduit is made of metal, the conduit, conduit mounting plate, and terminal block mounting plate are in electrical contact with each other. By simply grounding the terminal block mounting plate, other parts can be grounded simultaneously. Therefore, grounding is not performed individually, and parts reduction and assembly processes are reduced.
In addition, since the terminal block mounting plate is used both for mounting the terminal block and the conduit mounting plate, it is possible to reduce the number of work steps compared to the case where each is made of a dedicated sheet metal.

  In the invention according to claim 3, the conduit mounting surface of the conduit mounting plate is structured to be inclined in the front-rear direction of the outdoor unit, so that it can be joined to the refrigerant pipe and guided to the rear of the outdoor unit.

According to a fourth aspect of the present invention, the conduit fixing portion comprises a box body whose surface corresponding to the wiring window is open, and has a through hole on a side surface of the box body perpendicular to one side surface of the outdoor unit. By fixing the end of the conduit to one, and selecting and fixing from multiple orientations on one side of the outdoor unit,
The conduit can be connected in parallel to the side of the outdoor unit, and the orientation of the conduit fixing part can be changed so that the conduit mounting angle is optimal for routing. It is possible to prevent the insulation itself from being deteriorated due to breakage or cracking of the conduit itself due to excessive routing.

In the invention according to claim 5, the conduit fixing part is formed by forming a hollow pipe in an L shape, fixing the end of the conduit to one end of the pipe, and rotating the other end to the wiring window. By making the structure fixed freely,
The conduit can be connected in parallel to the side of the outdoor unit, and the conduit fixing part can be rotated to achieve the optimal conduit mounting angle for bundling with the refrigerant pipe, improving the exterior and installation characteristics, and In addition, it is possible to prevent the conduit itself from being damaged and the insulation from being deteriorated due to cracks due to the conduit being forcibly routed.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

FIG. 1 is a perspective view showing an embodiment of an outdoor unit of an air conditioner according to the present invention, and FIG. 2 is a side view of the outdoor unit.
The feature of the present invention is that the conduit 2 having poor flexibility is connected to the side surface of the outdoor unit 1 and bundled together with the refrigerant pipe 4, or the conduit 2 is easily routed in the intended direction. For this reason, the conduit 2 is temporarily fixed to the side surface of the conduit mounting plate 3, and the conduit mounting plate 3 is fixed to the side surface of the outdoor unit 1, so that the outlet direction of the conduit 2 is changed from the conventional vertical to the horizontal direction. is doing. A conduit mounting plate 3 fixed to the side surface of the outdoor unit 1 constitutes a conduit fixing portion.

  The conduit mounting plate 3 has two end portions of a trapezoidal sheet metal bent in the same direction into an L-shaped cross section, two through holes 3a on one vertical surface, and screw holes 3b on the tip of the vertical surface. And an outdoor unit 1 and a fixed portion 3c parallel to the outdoor unit 1. Furthermore, the conduit mounting plate 3 includes two insertion holes 3 e in a trapezoidal portion 3 d that is a surface parallel to the outdoor unit 1. Then, the end of the conduit 2 provided with the thread 2a is inserted into the through hole 3a of the conduit mounting plate 3, and the nut 11 corresponding to the thread 2a is screwed to the end of the conduit 2 so that the conduit 2 is It is fixed to the conduit mounting plate 3.

  On the other hand, an electrical equipment box (not shown) is arranged inside the wiring window 1a of the outdoor unit 1, and an electrical wire wired inside the electrical equipment box and an electrical wire 12 stored in the conduit 2 are connected to the electrical equipment box. A terminal block mounting plate 6 to which the terminal block 5 to be connected is fixed is fixed.

  The terminal block mounting plate 6 is bent, and a mounting portion 6a corresponding to the trapezoidal portion 3d of the conduit mounting plate 3 extends from the lower portion of the terminal block 5 to the lower outside of the wiring window 1a. The mounting portion 6a is provided with a screw hole 6b corresponding to the insertion hole 3e of the conduit mounting plate 3, and a screw 7 is inserted into the insertion hole 3e and screwed into the screw hole 6b. Is fixed to the terminal block mounting plate 6.

  In addition, the electric wire 12 stored in the conduit 2 is connected to the terminal block 5 disposed above via the conduit mounting plate 3. Thus, since the conduit mounting plate 3 is located below the terminal block 5, even if rainwater enters into the conduit mounting plate 3, it prevents the rainwater from getting into the terminal block 5 and shorting the power supply. it can.

  Furthermore, when the conduit 2 is made of metal, the conduit 2, the conduit mounting plate 3, and the terminal block mounting plate 6 are in electrical contact. Earth grounding is possible at the same time, and there is no need for individual earth grounding, reducing parts and assembly processes.

  Further, since the terminal block mounting plate 6 is used for both the mounting of the terminal block 5 and the mounting of the conduit mounting plate 3, it is possible to reduce the number of work steps compared to the case where each is made of a dedicated sheet metal.

  Further, the terminal block cover 8 having one surface opened is inserted into the insertion hole 8 a provided in the terminal block cover 8 with a screw 9 and screwed into the screw hole 3 b of the fixing portion 3 c of the conduit mounting plate 3. Thus, the conduit mounting plate 3 and the terminal block 5 are covered, and the respective waterproofness and safety are improved.

  FIG. 2 is a side view of the outdoor unit 1 and shows a state in which the terminal block cover 8 covers the conduit mounting plate 3 and the terminal block 5. Since the conduit mounting plate 3 is trapezoidal as described above, the conduit 2 has a structure that is drawn obliquely downward with respect to the vertical direction of the outdoor unit 1. Also. Since the refrigerant pipe 4 is drawn obliquely upward with respect to the vertical direction of the outdoor unit 1, the conduit 2 and the refrigerant pipe 4 can be joined and drawn out to the rear of the outdoor unit 1. The space on the side surface side of the machine 1 is almost unnecessary, and the conduit 2 and the refrigerant pipe 4 can be easily routed, so that installation is improved.

  Further, since the conduit 2 and the refrigerant pipe 4 can be merged, the electrical cover 10 is connected in a state in which the conduit 2 and the refrigerant pipe 4 are connected by providing a notch 10a on the side surface of the electrical cover 10 at a position corresponding to these. Can be attached, and the exterior property can be improved.

  FIG. 3 is a perspective view of the side of an outdoor unit showing another embodiment according to the present invention, and shows a structure for fixing the conduit at every predetermined angle. In addition, the same number is given about the same part as Example 1, and detailed description is abbreviate | omitted.

  A feature of the present invention is that a conduit having poor flexibility is connected to the side surface of the outdoor unit 21 and bundled together with the refrigerant pipe 4 or the conduit 22 is easily routed in the intended direction. For this reason, the conduit 22 is fixed to the side surface of the box-shaped conduit fixing portion 23, and the conduit fixing portion 23 is fixed to the side surface of the outdoor unit 21. A plurality of screw holes 24 are provided on the side surface of the outdoor unit 21, and the conduit fixing part 23 can be fixed in a state where it is rotated at a constant angle, so that the conduit 22 can be easily routed in the intended direction. become.

  The conduit fixing part 23 is formed in a metal box shape with an open bottom, and two metallic conduits 22 are fixed to the side surface by nuts 25. An electric wire 27 to which a terminal 26 is attached is disposed inside the conduit 22, and the terminal 26 is connected to a terminal block 29 exposed from a rectangular hole 28 provided on the side surface of the outdoor unit 21. ing.

Further, plate-like fixing portions 31 having attachment holes 30 are respectively provided at four positions on the side surface of the conduit fixing portion 23, and screws 32 are inserted into the attachment holes 30 to be provided on the side surfaces of the outdoor unit 21. The conduit fixing portion 23 is fixed to the side surface of the outdoor unit 21 by being screwed into the screw hole 24. The conduit fixing portion 23 and the screw hole 24 provided on the side surface of the outdoor unit 21 constitute a conduit fixing portion.
A rubber packing 33 is disposed between the conduit fixing portion 23 and the side surface of the outdoor unit 21 to improve waterproofness.

  FIG. 4 is a top view of the conduit fixing portion 23, and will explain the position of the screw hole 24 for attaching to the outdoor unit 21 at a different angle. A dotted line shows a case where the solid-line conduit fixing portion 23 is disposed by being rotated by 45 degrees.

The conduit fixing portion 23 is provided with attachment holes 30 at four locations, and correspondingly, eight screw holes 24 are provided on the side surface of the outdoor unit 21.
That is, the screw hole 24 is provided every 45 degrees from the center of the conduit fixing part 23, and the conduit fixing part 23 is rotated every 45 degrees by using the screw hole 24 every other angle. Can be fixed. Accordingly, it is possible to select and fix the most appropriate angle at which the conduit 22 becomes the target direction.

The upper surface and the opening of the conduit fixing part 23 are square, and the screw holes 24 adjacent in the circumferential direction are always hidden inside the conduit fixing part 23 when viewed in the projection direction. The screw holes 24 other than the screw holes 24 to which the screws 32 are actually attached need not be waterproofed. Accordingly, the conduit fixing part 23 can be easily installed.
In the embodiment, the conduit fixing portion is assumed to be a metal material, but the present invention is not limited to this, and may be configured using reinforced plastic or the like.

FIG. 5 is a perspective view showing another embodiment of the outdoor unit of the air conditioner according to the present invention, and FIG. 6 is a sectional view of the conduit fixing portion.
A feature of the present invention is that a hollow conduit fixing portion 84 that protrudes vertically from a side surface of the outdoor unit 81 and is bent in an L shape so as to be parallel to the outdoor unit 81 freely rotates in the vertical direction of the outdoor unit 81. In the structure.

  Therefore, a connector 86 attached to the tip of the electric wire 85 inserted into the conduit 82 and a connector 88 attached to the tip of the electric wire 87 extended from the electrical equipment box (not shown) of the outdoor unit 81 are provided. Coupling is performed inside the conduit fixing portion 84. And after fixing the conduit 82 to the front-end | tip of this conduit fixing | fixed part 84, the conduit fixing | fixed part 84 is rotated and it is set as the angle convenient for bundling with the refrigerant | coolant pipe | tube 4. FIG.

  As shown in FIG. 6, the conduit fixing portion 84 is formed by bending a pipe made of synthetic resin into an L shape, and a thread groove 84a is formed on the outer peripheral surface of one end portion. A flange portion 84b is provided at the other end portion, and two screw holes 84c are provided near the outer periphery of the flange portion 84b.

  On the other hand, a flange plate 82a is provided at one end portion of the conduit 82 corresponding to the flange portion 84b of the conduit fixing portion 84, and a screw 89 inserted through an insertion hole 82b provided in the flange plate 82a has a flange. The conduit 82 and the conduit fixing portion 84 are fixed by screwing into the screw holes 84c of the portion 84b. If necessary, a rubber waterproof sheet (not shown) may be disposed between the flange portion 84b and the flange plate 82a.

  Further, the other end of the conduit fixing portion 84 is inserted through a through hole 90 a provided in the metal plate 90 of the side housing of the outdoor unit 81, and a fixing nut 91 is inserted from the inside of the casing of the outdoor unit 81. The metal plate 90 is clamped between the fixing nut 91 and the stopper portion 92.

The stopper portion 92 is provided with a circumferential groove 92a on the surface facing the metal plate 90, and an O-ring 92b made of rubber is embedded in the groove 92a. Therefore, when the fixing nut 91 is screwed to a predetermined position of the screw groove 84a (position just before the screw groove 84a disappears), the O-ring 92b comes into close contact with the metal plate 90 and prevents water and dust from entering. It has become.
With this structure, the conduit fixing portion 84 can be rotated, and is locked at an arbitrary position rotated by an appropriate frictional force by the O-ring 92b, so that the rotation angle can be easily selected. it can.

  With such a conduit fixing portion 84, the conduit 82 can be connected in parallel to the side surface of the outdoor unit 81, and the conduit fixing portion 84 can be rotated so as to have an optimal conduit mounting angle for bundling with the refrigerant pipe 4. Further, the exterior property and the installation property can be improved, and the deterioration of the insulating property due to the breakage or crack of the conduit 82 due to the excessive routing of the conduit 82 can be prevented.

It is a perspective view which shows the Example of the outdoor unit of the air conditioner by this invention. It is a side view of the outdoor unit by this invention. It is a perspective view which shows another Example of the attachment structure of the conduit by this invention. It is a top view of the conduit fixing part by this invention. It is a perspective view which shows the other Example of the attachment structure of the conduit | pipe by this invention. FIG. 6 is a cross-sectional view of the conduit mounting structure shown in FIG. 5. The outdoor unit of the conventional air conditioner is shown, (A) is a principal part front view, (B) is a side view, (C) is a front view of a power supply cover. It is a perspective view which shows the attachment structure of the conduit in the conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 1a Wiring window 2 Conduit 2a Thread 3 Conduit mounting plate 3a Through-hole 3b Screw hole 3c Fixed part 3d Trapezoid part 3e Insertion hole 4 Refrigerant tube 5 Terminal block 6 Terminal block mounting plate 6a Mounting part 6b Screw hole 7 Screw 8 Terminal block cover 8a Insertion hole 9 Screw 10 Electrical cover 10a Notch 11 Nut 12 Electric wire 21 Outdoor unit 22 Conduit 23 Conduit fixing part 24 Screw hole 25 Nut 26 Terminal 27 Electric wire 28 Rectangular hole 29 Terminal block 30 Mounting hole 31 Fixing part 31 Fixing part 32 Screw 33 Rubber packing 81 Outdoor unit 82 Conduit 82a Flange plate 82b Insertion hole 84 Conduit fixing part 84a Screw groove 84b Flange part 84c Screw hole 85 Electric wire 86 Connector 87 Electric wire 88 Connector 89 Screw 90 Metal plate 90a Through hole 91 Fixing nut 92 Stopper part 92 a Groove 92b O-ring

Claims (5)

In an outdoor unit of an air conditioner including a conduit fixing portion that fixes an end portion of a conduit that stores an electric wire, and a terminal block that connects the electric wire, on one side surface of the housing,
The conduit fixing portion includes a conduit mounting plate that includes a through hole in a plate surface perpendicular to one side surface of the outdoor unit, and that fixes the end of the conduit to the through hole. Outdoor unit.   A wiring window for guiding the electric wire into the housing and the terminal block disposed in the wiring window are fixed to one side surface of the outdoor unit, and are parallel to the side surface of the housing and downward from the wiring window. The outdoor unit for an air conditioner according to claim 1, wherein a terminal block mounting plate for fixing the conduit mounting plate is provided on the extended surface.   The outdoor unit of an air conditioner according to claim 1 or 2, wherein a conduit mounting surface of the conduit mounting plate is inclined in a front-rear direction of the outdoor unit. An air conditioner comprising a conduit fixing portion for fixing an end portion of a conduit storing an electric wire, a wiring window for guiding the electric wire into the housing, and a terminal block disposed in the wiring window on one side surface of the housing. In the outdoor unit of the machine,
The conduit fixing portion is formed of a box body having a surface corresponding to the wiring window, and has a through hole on a side surface of the box body that is perpendicular to one side surface of the outdoor unit. An outdoor unit for an air conditioner, wherein an end part is fixed, and is selectively selected from a plurality of directions on one side of the outdoor unit and fixed. In an outdoor unit of an air conditioner including a conduit fixing portion that fixes an end of a conduit that stores an electric wire on one side surface of the housing, and a wiring window that guides the electric wire into the housing.
The conduit fixing portion is formed by forming a hollow pipe in an L shape, fixing the end of the conduit to one end of the pipe, and rotatably fixing the other end to the wiring window. The outdoor unit of the air conditioner characterized by becoming.

Images