JPH10110970A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of component parts, perform an efficient operation, prevent an occurrence of noise and improve a reliability in operation by a method wherein there are provided a gas where a power supply cord extending from a box for electrical component parts is inserted and a guide hug section for restricting a position of an intermediate part of an electrical cord inserted into the gap. SOLUTION: An operation for installing an indoor device to a predetermined position is carried out for fixing an installing plate to an air conditioned room wall surface and installing a rear plate 3. A size is set such that a gap (b) is formed n respect to the extremity end of a guide hub part 12 projected at a downward side surface 3b of the rear plate 3 and an inner surface of a front panel 2. With such an arrangement as above, when the front panel 2 is fixed, the front panel 2 is not caught by the a guide hub part 12 and workability may not be damaged. An electrical cord K is fixed to the guide hub part 12 under a state in which the front panel 2 is fixed to the rear plate 3 and a lead wire r of a weak electrical component part is fixed to a lead wire fixing section 13 and extended out of a gap 10, resulting in that these fixing clamps are eliminated, the number of component parts can be reduced and its working can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner in which a front panel and a rear panel constitute a unit body, and more particularly to an improvement in a wiring processing structure.

[0002]

2. Description of the Related Art An air conditioner generally used comprises an indoor unit arranged in a room to be air-conditioned and an outdoor unit arranged outdoors, and these units are connected to each other by a refrigerant pipe and electric wiring. .

[0003] In the indoor unit, an indoor heat exchanger and an indoor blower are arranged in the unit main body so as to face each other, and an electric component box is arranged on a side of these units. A power cord and a lead wire called an FM cord connected to a weak electric component such as a fan motor of a blower extend from the electric component box.

In such a wiring space, electric parts such as a louver driving motor for changing a blowing direction at a blowing port are mounted, and free parts such as a power cord and a lead wire are used for these electric parts. It was a factor in contact with parts and the generation of abnormal noise during operation.

Furthermore, a power cord connected to a city power source, which is a heavy electric part, and a lead wire of a weak electric component come into contact with each other, causing noise due to mutual contact, thereby impairing operational reliability. There was a fear.

Therefore, conventionally, a middle part such as a power supply cord and a lead wire is bundled and fixed to a predetermined portion of the unit main body by using a cord clamp which is a fixing tool. The cord clamp includes an insertion portion through which a cord is inserted, and a mounting portion provided integrally with the insertion portion and provided with a mounting hole for a fixing screw.

[0007]

As described above, conventionally, a cord clamp is required to fix a power supply cord and a lead wire of a weak electric component, and a large number of cord clamps must be prepared, thus increasing the component cost. In addition, it takes a lot of time to attach these components, and the workability is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to fix a cord using a unit main body structure and to reduce the number of parts and the cost of parts by eliminating the need for a dedicated cord clamp. Another object of the present invention is to provide an air conditioner capable of improving workability, reliably separating a power cord and a lead wire for a weak electric component, preventing generation of noise, and improving reliability.

[0009]

Means for Solving the Problems In order to satisfy the above-mentioned object, an air conditioner according to the present invention is characterized in that a heat exchanger, a blower, an electric component box and the like are arranged, and a rear plate having an opening on the front side; A unit body that is a combination of a front panel that covers the front side of the rear plate and that is removably fitted to the peripheral surface of the rear plate, and a peripheral surface of the rear panel and a front panel of the unit body. And a power supply cord extending from the electrical component box is inserted through the gap, and the power cord protrudes from the rear plate peripheral surface to the gap and is inserted into the gap. And a guide boss part for regulating the position of the part.

According to a second aspect of the present invention, in the first aspect, a gap is formed between the front end surface of the guide boss and the inner surface of the front panel, and the gap is set smaller than the diameter of the power cord. It is characterized by that.

According to a third aspect of the present invention, in the first aspect, the peripheral portion of the rear plate separates and secures a lead wire of a weak electric component such as a blower motor to a power cord at a position separated from the guide boss portion. A fixing portion is provided.

According to a fourth aspect of the present invention, in the first aspect, the rear plate peripheral surface is provided with a hole for confirming drain hose connection. By providing the means for solving the above problems, in the invention of claim 1, the unit body is assembled by fitting the peripheral surface of the front panel to the peripheral surface of the rear plate, and the power cord of the power cord is also assembled. The position is fixed.

According to the second aspect of the present invention, when assembling the unit main body, the guide boss does not hinder assembly when the front panel is attached to the rear plate. Then, the power cord is prevented from dropping from between the front end of the guide boss and the front panel.

According to the third aspect of the present invention, the power cord connected to the city power source, which is a heavy electric part, and the lead wire for the weak electric component are reliably separated to ensure safety. According to the fourth aspect of the present invention, it is possible to check the connection of the drain hose before assembling the front panel, and it is possible to reliably prevent a water leak accident due to poor connection of the drain hose.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an indoor unit of the air conditioner is configured. The unit main body 1 has a horizontally long shape in which the width dimension in the left-right direction is extremely longer than the vertical dimension. The unit body 1 includes a front panel 2
And the rear plate 3.

The front panel 2 has a front-side cross section that is curved in a gentle arc shape, and includes upper and lower surface portions on the peripheral surface portion and left and right side surface portions that protrude rearward.
Open to the back side.

On the front side of the front panel 2, a front suction port 2a in which a grill is formed is provided. The upper surface is a horizontal piece, and an upper suction port (not shown) is provided. Lamps 4 such as an operation lamp are provided at a lower portion on the front side, and a blow-out port 5 is formed on the lower side.
A louver 6 is fitted into the outlet 5 to set the direction of the blown wind.

The rear plate 3 has left and right side surfaces and upper and lower surface portions on which the left and right side surfaces and the upper and lower surfaces of the front panel 2 are detachably fitted. Therefore, the front side is open, and the front panel whose back side is open is fitted to form a box-shaped unit main body 1 in which a space chamber is formed.

FIGS. 2 and 3 show a state in which the front panel 2 is removed from the rear plate 3 and the inside of the unit body 1 is exposed. FIG. 2 shows the right side of the unit body 1, and FIG. 3 shows a state in which an electric component box 8 described later is removed from FIG.

Except for the left side of the rear plate 3, most of the remaining space is occupied by the space where the indoor heat exchanger 7 is arranged. Although not completely illustrated here, the indoor heat exchanger 7 is formed in an inverted V shape, and a front heat exchanger 7A facing the front suction port 2a and a rear side (not shown) facing the upper suction port. And a heat exchanger.

The front heat exchanger 7A is formed in an arc shape in a side view similarly to the front side shape of the front panel 2.
An auxiliary heat exchanger is arranged along the upper surface of the rear heat exchanger, and is usually interposed between the auxiliary heat exchanger and the upper suction port.

An electric component box 8 is disposed at a side portion of the indoor heat exchanger 7 and is attached to the rear plate 3 by an appropriate means. Although not particularly shown, the electric parts box 8 includes electric parts such as a power transformer and a capacitor which are electrically connected to a city power supply via a power cord K, the lamps 4 and a louver motor and a fan motor to be described later. An electronic component that is electrically connected to a weak electrical component such as the above via a weak electrical component lead wire R is accommodated.

Further, the rear plate 3 is formed such that the width of a portion below the space for mounting the electric component box 8 is narrow. That is, the upper side surface 3a of the rear plate 3 protrudes from where the electric component box 8 is arranged, and the side surface of the front panel 2 is fitted into the upper side surface 3a.

The lower side portion 3b of the rear plate 3 is
It is located inside of a and has a step-like side surface. Naturally, the lower side surface portion 3b has a gap with the front panel side surface portion 2a in a state where the front panel 2 is fitted into the rear plate 3, and a gap portion 10 is formed therebetween.

The lower side surface portion 3b of the rear plate also serves as a bearing portion for pivotally supporting a pivot shaft (not shown) of the louver 6 described above, and a louver motor 11 connected to the pivot shaft is connected to the gap 10 side. To the lower side portion 3b by appropriate means.
Attached to

Further, a fan motor mounting plate 15 is integrally connected at the same plane position as the lower side surface portion 3b of the rear plate 3 with a predetermined gap from the upper side surface portion 3a. Therefore,
A predetermined space 16 is formed between the fan motor mounting plate 15 and the upper side surface.

A fan motor 17 of a blower 20, which is a weak electric component, is mounted on the fan motor mounting plate 15 by an appropriate means, and protrudes into a space 16. The rotation shaft of the fan motor 17 protrudes toward the indoor heat exchanger 7 and is connected to the cross flow fan 18. This cross flow fan 18
Is interposed in the space between the front heat exchanger 7A and the rear heat exchanger.

When the city power supply is called a heavy electric part, the louver motor 11 is suitably called a light electric part. A power cord K connected to a city power supply, which is a heavy electric part, a lead R connected to a louver motor 11 which is a weak electric component, and a lead R connected to a fan motor 17 are inserted through the gap 10.

A guide boss portion 12 and a lead wire fixing portion 13 of a weak electric component are provided on the lower side surface portion 3b at positions separated from each other and protruding into the gap portion 10 and a drain hose (not shown) is connected thereto. A hole 14 for confirmation is opened.

The guide boss 12 is formed on the lower side surface 3b.
In particular, as shown in FIG. 4, the front panel 2 is fitted into the rear plate 3 so that the unit body 1
Are formed such that a gap b is formed between the protruding end surface of the guide boss portion 12 and the inner surface of the front panel 2. The gap dimension b is smaller than the wire diameter dimension of the power cord K (b> a).

As shown in FIG. 2 and FIG. 3 again, the power cord K extending from the electric component box 8 is inserted into the gap 10, and an intermediate portion of the power cord K is regulated by the guide boss 12, and is located at that position. Fixed. And power cord K
Extends from the unit body 1 through the gap 10.

The lead wire fixing portion 13 is provided on the lower side surface portion 3.
The lead R connected to the louver motor 11 and the lead R connected to the fan motor 17, which are weak electrical components extending from the electrical component box 8, are fixed in position. .

In other words, the lead wire fixing portion 13 is provided at a position separated from the guide boss portion 12, and separates the lead R of the weak electric component from the power cord K. On the other hand, the drain hose connection confirmation hole 14 is provided to face a drain pan (not shown) arranged below the front heat exchanger 7 </ b> A of the indoor heat exchanger 7. A drain pan is also arranged below the rear heat exchanger, but all drain water received here flows down to a drain pan below the front heat exchanger 7A.

Therefore, the drain hose is connected only to the drain pan below the front heat exchanger 7A, and extends from the outside to the outdoor. Although the drain hose is connected to the back side of the drain pan for the sake of space, it is still shielded even when the front panel 2 is removed to expose the rear panel 3 and the indoor heat exchanger 7 and the like.

The hole 14 is provided at a position facing the side portion of the drain hose, and the connection state of the drain hose can be confirmed by looking through the hole. Therefore, if a connection failure is found, appropriate measures must be taken.

The indoor unit constructed as described above performs a refrigeration cycle operation for the indoor heat exchanger 7 and rotationally drives the cross flow fan 18 with the fan motor 17 so that the air to be conditioned is supplied to the front suction port. 2 and is sucked into the unit body 1 from the upper suction port, passes through the indoor heat exchanger 7, and performs heat exchange. The heat exchange air after the heat exchange is blown out from the outlet 5 into the room to be air-conditioned.

In order to install the indoor unit at a predetermined position on the wall of the room to be air-conditioned, first, an attached mounting plate is attached to the wall of the room to be air-conditioned, and after sufficient confirmation, the rear plate 3 is attached to the mounting plate. Attach. At this time, the front panel 2 is detached from the rear plate 3.

The heat exchanger 7, the blower 20, the electric component box 8, and the like disposed on the rear plate 3 are exposed, and the power cord K is fixed to the guide boss portion 12, and the lead wire fixing portion 13 is provided. Then, the lead wire R of the weak electric component is separately fixed to the power cord K.

After the rear plate 3 is attached, it is confirmed that the drain hose is securely connected to the drain pan by looking through the drain hose connection confirmation hole 14 provided in the lower side surface 3b.

Then, the operation shifts to the operation of fitting the front panel 2 to the rear plate 3. That is, the upper surface and both side surfaces of the front panel 2 are fitted into the upper surface and the upper side surface of the rear plate 3. Therefore, the side portion of the front panel 2 is connected to the lower side portion 3b of the rear plate 3.
And a gap 10 is formed between them.

Since the clearance is set so that a gap b is formed between the inner surface of the front panel 2 and the front end surface of the guide boss portion 12 projecting from the lower side surface portion 3b of the rear plate 3, In addition, the front panel 2 is not hooked on the guide boss portion 12, and the workability is not impaired.

With the front panel 2 attached to the rear plate 3,
The power cord K is securely fixed to the guide boss portion 12 and the lead wire R of the weak electric component is securely fixed to the lead wire fixing portion 13 and extends from the gap portion 10. No special clamp is required,
The number of parts is reduced, and workability is facilitated.

Since the power cord K and the lead wire R of the weak electric component are reliably separated, the occurrence of noise can be prevented and the operation reliability can be improved. Further, since the guide boss portion 12 is provided, the power cord K does not come into contact with the louver motor 11 even if it is not fixed by a cord clamp or the like, and therefore, no abnormal noise is generated.

Front end face of guide boss 12 and front panel 2
Since the gap size b with the inner surface is set smaller than the wire diameter a of the power cord K, it is possible to prevent the power cord K from dropping out of the gap b.

Since the hole 14 for confirming the connection of the drain hose is provided to facilitate the confirmation, it is possible to reliably detect the connection failure of the drain hose and to prevent a water leak accident or the like. In addition,
Even in the case where such a guide boss portion 12 is provided,
When exporting overseas, a cord clamp is required,
In this case, the hole 14 for confirming the connection of the drain hose may not be necessary. In this case, the diameter of the hole is made small, and the hole can be changed to a hole for attaching a cord clamp, and there is no significant design change.

[0046]

As described above, according to the first aspect of the present invention, the unit body is constituted by combining the rear plate and the front panel, and extends from the electric component box between the rear plate and the front panel. A gap for inserting the power cord is formed, and a guide boss that regulates the position of the middle of the power cord from the rear plate to the gap protrudes, so the position of the power cord is fixed as the unit body is assembled. I do. Therefore, a code clamp as a separate component is not required, so that the cost can be reduced by reducing the number of components, and the assembling work can be simplified and the man-hour can be reduced.

According to the second aspect of the present invention, a gap smaller than the diameter of the power cord is formed between the front end face of the guide boss and the inner face of the front panel. The guide boss can be kept out of the way, and the power cord can be prevented from falling off between the front end of the guide boss and the front panel.

According to the third aspect of the present invention, the lead wire fixing portion for separating and fixing the lead wire of the weak electric component to the power cord is provided at a position separated from the guide boss portion of the rear plate. A power cord connected to a city power supply,
Securely separate the lead wires for light electrical components to ensure safety.

According to the fourth aspect of the present invention, since the rear plate is provided with the hole for confirming the connection of the drain hose, the connection of the drain hose can be confirmed before assembling the front panel. Surely block.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air conditioner indoor unit according to an embodiment of the present invention.

FIG. 2 is a perspective view of one side of the indoor unit with the front panel removed, showing the embodiment.

FIG. 3 is a perspective view showing the same embodiment, with the same side part as in FIG. 2 and a state where an electric component box is further removed.

FIG. 4 is a view showing the same embodiment and is a view for explaining a dimensional relationship between a guide boss tip end gap and a power cord.

[Explanation of symbols]

 7 ... indoor heat exchanger, 20 ... blower, 8 ... electrical parts box, 3 ... rear plate, 2 ... front panel, 1 ... unit body, K ... power cord, 10 ... gap, 12 ... guide boss, 11 ... Louver motor, 17: fan motor, R: lead wire, 13: lead wire fixing part, 14 ... hole (for checking drain hose connection).

Claims (4)

[Claims] 1. A rear plate on which a heat exchanger, a blower, an electric component box and the like are arranged, the front side of which is open, and a front panel which covers the front side of the rear plate and is detachably fitted to a peripheral surface of the rear plate. And a gap formed between the peripheral surface of the rear plate and the peripheral surface of the front panel of the unit main body, and through which a power cord extending from the electric component box is inserted. An air conditioner, comprising: a guide boss protruding from the peripheral surface of the rear plate to a gap to regulate a position of a middle portion of the power cord inserted into the gap. 2. The guide boss portion has a gap formed between its front end face and the inner face of the front panel.
2. The air conditioner according to claim 1, wherein the diameter of the power cord is set smaller than the diameter of the power cord. 3. The rear plate peripheral surface portion is provided with a lead wire fixing portion for separating and fixing a lead wire of a weak electric component such as a blower motor to a power cord at a position separated from the guide boss portion. The air conditioner according to claim 1, wherein: 4. The air conditioner according to claim 1, wherein the rear plate peripheral surface has a hole for confirming connection of a drain hose.