JP3351270B2 - Separate air conditioner indoor / outdoor connection wire fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing indoor and outdoor connection wires of an indoor unit of a separate type air conditioner.

[0002]

2. Description of the Related Art Conventionally, a fixing structure of an indoor / outdoor connection electric wire of an indoor unit of a separate type air conditioner has a terminal block 6 fixed to an electric box 3 and electrically connected to an electronic control unit 13 as shown in FIG. Although the indoor and outdoor connection wires 7 are connected to exchange power and signals between the indoor unit and the outdoor unit, the inside and outside connection wires 7 are pulled by an external force and a force is applied to the connection portion with the terminal block 6. The indoor / outdoor connection electric wire 7 is fixed to the electrical box 3 in front of the terminal block 6 by the fixing device 1 in order to prevent the indoor / outdoor connection electric wire 7 from being connected to the terminal block as shown in FIGS. 6, the protrusion 14 provided at the end of the fixture 1 is inserted into a recess 15 provided in a part of the electrical box 3 as shown in FIG. 9 and fix the indoor and outdoor connection wires 7 between the electrical box 3 and the fixture 1. It is intended.

[0003]

However, in the above-mentioned conventional fixing structure, the connection of the indoor / outdoor connecting wire 7 to the terminal block 6 and the fixing by the fixing tool 1 are not performed during installation or service of the air conditioner. In this case, the convex portion 14 of the fixture 1 is replaced with the concave portion 1 of the electrical box 3.
5, the fixture 1 often falls to the floor surface when fixing to the pedestal 8 with the screw 9.

As a result, especially when the indoor unit is of a wall-mounted type, it is necessary to go down from a chair or the like to pick up a fixture that has fallen to the floor, and a lot of time is wasted at the time of installation or service. .

As an improvement method, a fixing structure shown in FIGS. 7 and 8 (Japanese Patent Application No. 07-316251) is conceivable. However, in order to prevent the fixing tool 1 from falling, the notch 17 of the bearing 16 is notched. Must be narrower than the back, making the structure of the molding die difficult and particularly difficult to implement with a small one such as the main fixing structure.

Further, there are two types of indoor / outdoor connecting wires generally used in the market, which have different wire diameters, and a fixing structure capable of securely fixing them while using them properly has been demanded.

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, it is an object of the present invention to prevent a fixture from being dropped in a fixing structure of an indoor / outdoor connection electric wire and to eliminate waste of time at the time of installation or service. It is intended to make the shape easier to form.

Another object of the present invention is to facilitate work for fixing indoor and outdoor connection electric wires.

Another object of the present invention is to make it easier to fix indoor and outdoor connection wires while saving space and increasing strength.

A further object of the present invention is to facilitate the use of indoor / outdoor connecting wires having different wire diameters.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a fixing device having a cylindrical shaft portion, and two semicircular arms and a part of the arm in a part of an electric box. A bearing portion is formed by providing a planar support wall at an intermediate position and at a position opposite to the arm portion with respect to the center axis of the semicircle of the arm portion, and the opening size of the arm portion and the support wall is determined by the fixing tool. The diameter of the shaft is smaller than the diameter of the shaft, and the shaft of the fixing tool is fitted to the arm and the support wall.

In the present invention, the shortest distance from the center axis of the arm to the support wall is smaller than the radius of the shaft of the fixture.

Further, according to the present invention, the gap between the arms is made smaller than the width of the fixed portion of the fixture, and the width of the fixture is narrower than the gap between the arms, so that the gap from the center axis to the notch end is formed. Is provided with a notch portion whose distance is larger than the outer peripheral dimension of the arm portion.

Further, according to the present invention, the distance between the front surface and the back surface of the fixing device is different from the plane including the central axis of the shaft portion.

[0015]

The operation of the above means is as follows.

According to the present invention, a fixing member is provided with a cylindrical shaft portion,
A bearing is provided in a part of an electrical component box by providing a flat support wall at a position intermediate between two semicircular arms and the arms and at a position opposite to the arms with respect to a center axis of the semicircle of the arms. Constituting a portion, the opening dimension of the arm and the support wall is smaller than the diameter of the shaft of the fixing tool, and by fitting the shaft of the fixing tool to the arm and the support mold, The shape is such that the fixing device does not drop at the time of installation or service, and the fixing device can be opened widely by rotating the fixing device, so that the workability can be improved and further easily formed.

Further, the present invention can keep the fixture at an arbitrary angle by making the shortest distance from the central axis of the arm to the support wall smaller than the radius of the shaft of the fixture, and can connect the indoor and outdoor connection electric wires. Can be easily fixed.

Further, according to the present invention, the gap between the arms is made smaller than the axis of the fixed part of the fixture, and the width of the fixture is narrower than the dimension of the gap between the arms, from the center axis to the notch end. By providing the notch portion whose distance is larger than the outer peripheral dimension of the arm portion, the fixing operation can be facilitated in a space-saving manner and strong against lateral force on the fixture.

Further, according to the present invention, the distance between the front surface and the back surface of the fixing device is made different from the plane including the central axis of the shaft portion on the front surface and the back surface, so that the front and back surfaces of the fixing device can be properly used and the electric wire diameter can be different. External connection wires can be used.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of a fixing structure of an indoor / outdoor connection electric wire in one embodiment of the present invention, and FIG. 2 is a cross-sectional view as viewed from a direction A shown in the perspective view of FIG.

In FIG. 1, reference numeral 1 denotes a fixture, and a cylindrical shaft 2 is provided at an end. Two semicircular arms 4 are provided on a part of the electrical box 3, and a flat support is provided at an intermediate position between the arms 4 and relative to the arms 4 with respect to the center axis of the semicircle of the arms 4. In the bearing portion provided with the wall 5, the arm portion 4 and the support wall 5
Is smaller than the diameter b of the shaft portion 2 and the shaft portion 2 is fitted with the arm portion 4 and the support wall 5 so that the fixture 1 can rotate about the shaft portion 2. I have. At this time, the shaft portion 2 is inserted by expanding the opening dimension a to b by the elasticity of the arm portion 4. Further, an end opposite to the shaft portion 2 of the fixture 1 is fixed to a pedestal 8 provided in a part of the electrical component box 3 with a screw 9 so as to hold the indoor / outdoor connection electric wire 7 connected to the terminal block 6. are doing.

In the above configuration, even if the screw 9 is removed in order to attach and detach the indoor / outdoor connection wire 7 during installation or service, the fixture 1 is fitted to the bearing of the electrical box 3 and does not come off. .

Therefore, it is possible to eliminate the waste that the fixture 1 has to get down from a chair or the like and be picked up when the fixture 1 falls on the floor or the like. Further, the shape of the bearing portion can be easily formed.

In the same figure, the shortest distance c from the center axis of the arm 4 to the support wall 5 is made slightly smaller than the radius b / 2 of the shaft 2 so that the elasticity of the arm 4 makes the shaft 2 To the support wall 5, the fixture 1 can be maintained at an arbitrary angle, and the work of fixing the indoor / outdoor connection electric wire 7 can be facilitated.

Further, in the same figure, the clearance dimension d between the two arms 4 is made smaller than the fixed part width dimension e of the fixture 1 and the width f of the fixture 1 is smaller than the dimension d and cut from the center axis. By providing the notch portion 10 whose distance g to the notch end is slightly larger than the outer peripheral dimension h of the arm portion 4, the bearing portion can be made smaller and the notch portion 10 causes the arm portion 4 to rotate when the fixture 1 is rotated. Since it is sandwiched, it is strong against lateral force on the fixture 1 and the fixing operation can be easily performed.

Further, in the same figure, the front and back sides of the fixing device 1 are selectively used by making the distance between the fixing device 1 and the plane including the central axis of the shaft portion 2 to the surface of the fixing portion different between the front surface i and the rear surface j. Accordingly, the indoor / outdoor connection wires 7 having different wire diameters can be used. In addition, as shown in FIG. 3, the thickness of the fixing portion may be the same on the front and back, and projections 11 and 12 having different heights may be provided on the front side and the back side.

[0027]

As is apparent from the above embodiment, the present invention relates to a fixing structure of an indoor / outdoor connection electric wire of a separate type air conditioner, wherein a fixing member is provided with a cylindrical shaft portion, and two parts are provided in a part of an electric box. A bearing portion is provided by providing a planar support wall at a position between the semicircular arm portion and the arm portion and at a position opposite to the arm portion with respect to the center axis of the semicircle of the arm portion. By reducing the opening dimension of the support wall to be smaller than the diameter of the shaft of the fixture and fitting the shaft of the fixture to the arm and the support wall, the fixture is dropped during installation or service. In addition, the fixing device can be opened by rotating the fixing device, thereby improving the workability. Further, the shape of the bearing portion can be easily formed.

Also, by making the shortest distance from the center axis of the arm to the support wall smaller than the radius of the shaft of the fixture,
The fixture can be maintained at an arbitrary angle, and the work of fixing the indoor and outdoor connection wires can be facilitated.

Further, the gap between the arms is smaller than the width of the fixing portion of the fixture, and the width of the fixture is smaller than the gap between the arms, and the distance from the center axis to the notch end is smaller. By providing the cutout portion that is larger than the outer periphery of the arm portion, the fixing operation can be easily performed in a space-saving manner and strong against lateral force on the fixture.

Further, by making the distance between the front surface and the back surface of the fixing device different from the plane including the center axis of the shaft portion on the front surface and the rear surface, the front and back surfaces of the fixing device can be selectively used to connect indoor / outdoor connection wires having different wire diameters. Can be used.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixing structure of an indoor / outdoor connection electric wire according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view seen from a direction A shown in the perspective view of FIG.

FIG. 3 is a sectional view of another embodiment of the present invention.

FIG. 4 is a front view of a main part of a fixing structure of an indoor / outdoor connection electric wire in a conventional example.

FIG. 5 is a perspective view of a fixing structure of an indoor / outdoor connection electric wire in a conventional example.

6 is a cross-sectional view as viewed from a direction B shown in the perspective view of FIG.

FIG. 7 is a perspective view of a fixing structure of an indoor / outdoor connection electric wire in a conventional example.

FIG. 8 is a cross-sectional view as viewed from a direction C shown in the perspective view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixing device 2 Shaft part 3 Electrical box 4 Arm part 5 Support wall 6 Terminal block 7 Indoor / outdoor connection electric wire 8 Pedestal 9 Screw 10, 17 Notch part 11, 12 Projection 13 Electronic control unit 14 Convex part 15 Concave part 16 Bearing part

────────────────────────────────────────────────── ─── Continued on the front page (72) Eiji Nakatsuno Eiji 1006 Ojidoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-7-139755 (JP, A) 63-163377 (JP, U) Japanese Utility Model 554881 (JP, U) Japanese Utility Model 63-179384 (JP, U) Japanese Utility Model 4-67292 (JP, U) Japanese Utility Model 55-173190 (JP, U) , U) Japanese Utility Model 63-127185 (JP, U) Japanese Utility Model 58-105183 (JP, U) Japanese Utility Model 48-28999 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) F24F 1/00 401 H05K 7/00 H05K 5/03 E05D 7/10

Claims (4)

(57) [Claims] 1. A fixing device provided with a cylindrical shaft portion, and a semi-circular arm portion in a part of an electric equipment box and an intermediate position between the arm portions and a center axis of a semicircle of the arm portion. A bearing portion is formed by providing a planar support wall at a position opposed to the arm portion, the opening size of the arm portion and the support wall is made smaller than the diameter of the shaft portion of the fixture, and the axis of the fixture is reduced. An indoor / outdoor connection wire fixing device for a separate type air conditioner having a portion fitted to the arm portion and the support wall. 2. The indoor / outdoor connecting wire fixing device for a separate type air conditioner according to claim 1, wherein the shortest distance from the central axis of the arm to the support wall is smaller than the radius of the shaft of the fixture. 3. The gap between the arms is smaller than the width of the fixed portion of the fixture, and the width of the fixture is smaller than the gap between the arms and the distance from the center axis to the notch end is smaller. The indoor / outdoor connection electric wire fixing device for a separate type air conditioner according to claim 1 or 2, wherein a cutout portion larger than the outer peripheral dimension of the arm portion is provided. 4. A separate type air conditioner according to claim 1, wherein a distance between the front surface and the rear surface of the fixing member is different from a plane including the central axis of the shaft portion. Indoor and outdoor connection wire fixing device.