JP2616636B2 - Circuit protection cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit protection cover for an air conditioner equipped with a control circuit.

[0002]

2. Description of the Related Art FIG. 7 is a view showing a conventional circuit protection cover disclosed in, for example, Japanese Patent Application No. 2-410552. In the figure, reference numeral 1 denotes an air conditioner body having an inspection port 2 provided on a side surface.
A mounting plate 4 for mounting the control circuit 3 is provided on a side surface of the main body 1 provided with the inspection port 2. Reference numeral 5 denotes a protective cover for the control circuit 3 mounted on the mounting plate 4 with screws 6, and reference numeral 7 denotes a lead wire provided on the control circuit 3.

The conventional circuit protection cover is configured as described above, and protects the control circuit 3 when the air conditioner main body 1 is operating, and removes the screw 6 when inspecting the control circuit 3.

[0004]

In the conventional circuit protection cover as described above, since the protection cover 5 is fixed to the mounting plate 4 only by the screws 6, the strength of the protection cover 5 against external pressure is reduced. In addition, there is a problem that the workability is poor because there is no positioning for mounting the protective cover 5 to the mounting plate 4 because there is no positioning.

[0005] Further, since there is no binding portion of the lead wire 7 on the control circuit 3, the lead wire 7 comes into contact with the control circuit 3 or it becomes difficult to bind the lead wire 7, and the lead wire 7 requires a material having high heat resistance. There was a problem to do.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a circuit protection cover which protects a control circuit which can easily bind a lead wire with sufficient strength and has good mounting properties. Is what you do.

[0007]

A circuit protection cover according to the present invention is mounted on an air conditioner body having an outer case formed of a rectangular box, and mounted on a side wall of the outer case of the air conditioner body.
A control circuit for controlling the air conditioner; and a protective cover that covers the control circuit and is screwed to the outer casing. A step-like engagement flange is projected from a twill portion of the outer casing, and the protective cover is provided. Is provided with a hook portion to be engaged with the engagement flange.

[0008] A partition plate provided with a lead wire protecting code bush and a switch is provided above the control circuit.

The lead wire protecting cord bush has a substantially U-shape having one opening, and a lead wire engaging claw is projected from the opening.

[0010]

The circuit protection cover according to the present invention has an air conditioner body having an outer case formed of a rectangular box, and a control circuit mounted on the outer case side wall of the air conditioner body to control the air conditioner. And a protective cover that covers the control circuit and is screwed to the outer casing. A step-like engaging flange is projected from the twill portion of the outer casing, and the protective cover is engaged with the engaging flange. Since the hook portion is provided, the protective cover is attached to the outer casing by being screwed after the hook portion is engaged with the engagement flange.

In addition, since a partition plate provided with a lead wire protecting code bush and a switch is provided above the control circuit, the lead wire of the control circuit is inserted through the code bush and connected to the switch.

Further, the lead bush is formed into a substantially U-shape having one opening, and a lead wire locking claw is protruded from the opening, so that the lead wire is protected by the lead bush. The inside is inserted and bound by the lead wire locking claw.

[0013]

1 to 6 show an embodiment of the present invention. Reference numeral 10 denotes an air conditioner body, in which a blower, a heat exchanger and the like (not shown) are provided. Reference numeral 11 denotes an outer casing of the air conditioner main body, which is formed of, for example, a rectangular box, and has an inspection port 12 and a duct connection port 13 provided on a side wall. Reference numeral 14 denotes an engagement flange, which is formed integrally with the ridge 15 surrounding the upper surface of the outer casing 11 and protrudes upward in a stepped manner. Reference numeral 16 denotes a protective cover, which is formed of a bottomed box having an opening 17 on one side, has a lead hole 18 formed in a side wall, and has a fixing portion 17b having a mounting hole 17a at a lower portion.
Reference numeral 19 denotes a hook portion integrally formed above the opening 17 of the protective cover. As shown in FIG. 2, an L-shaped hook groove 20 into which the engaging flange 14 is inserted at the upper end of the side wall, and an opposing face of the hook groove. And a hook 21 in the form of a step. 22 is a circuit mounting hole provided on the side wall of the outer casing 11,
23 is a bush similarly provided on the side wall of the outer casing 11,
The lead wire 24 is inserted. A control circuit 25 controls the blower, mounts a circuit radiator 26, and drills a mounting hole (not shown) to a mounting plate described later. 27 is a mounting plate, which is made of a steel plate and both ends are projected upward in an L-shape,
A partition plate mounting portion 29 is provided in which the tips of the projecting portions 28 face inward so as to face each other. Reference numeral 30 denotes a circuit mounting foot protruding from the mounting plate, and 31 denotes a mounting claw to the outer casing 11 provided around the mounting plate 27, and has a screw hole 32. 33 is a circuit bush for connecting the circuit mounting foot 30 and the mounting hole 30 of the control circuit 25 continuously, 34 is a screw inserted through the mounting claw 31 and fixing the mounting plate 27 to the outer casing 11, 35 is a partition plate Then, both ends are bent upward in a L-shape with a steel plate, and a bent portion 36 having a screw hole is provided. A switch 37 is mounted on one bent portion 36. Reference numeral 38 denotes a cord hole formed in the partition plate, which is substantially U-shaped and has an opening on one side.
A lead-shaped protective cord bush 39 of the same shape is fitted, and the lead wires 24 are bound. Reference numeral 40 denotes a lead wire locking claw, which has a resilient and bent double structure, and is provided with a plurality of protrusions so as to face the opening side wall of the lead wire protecting cord bush 39.

In the circuit cover configured as described above, the control circuit 25 is mounted on the circuit mounting foot 30 of the mounting plate 27 via the circuit bush 33.
Switch 37 and cord bush 3
9 is attached with screws 34. Then, the lead wire 24 is wired from the switch 37 to the control circuit 25. In this case, the lead wire 24 is
And the circuit component does not contact the lead wire 24 by the cord bush 39 and the partition plate 35. Then, the mounting plate 27 is mounted to the circuit mounting hole 22 with the screw 34. Next, as shown in FIG. 2, the engaging cover 21 is engaged with the engaging flange 14 of the outer casing 11 so that the engaging flange 14 is inserted into the rack groove 20. Is locked to the side wall of the outer casing 11. Further, the mounting hole 17a of the fixing portion 17b is fixed to the outer casing 11 with the screw 34. With this, the protective cover 16
Is attached to the outer casing 11 and the strength of the protective cover 16 is increased by the hook portion 19, so that the control circuit 25 is protected.

[0015]

As described above, the present invention provides an air conditioner body having an outer casing made of a rectangular box and a control mounted on the outer casing side wall of the air conditioner body to control the air conditioner. A circuit, and a protective cover that covers the control circuit and is screwed to the outer casing. A step-shaped engaging flange is projected from the twill portion of the outer casing, and the protective cover is engaged with the engaging flange. By providing the hooks that are combined with each other, the hooks can be engaged with the engaging flanges to position the protective cover when it is attached, facilitating attachment and improving the strength of the protective cover at the hooks. Is done.

In addition, since a partition plate in which a lead wire protecting code bush and a switch are disposed above the control circuit, the lead wires are bound by being inserted through the code bush and contact with the control circuit. Workability and product performance are improved.

Further, the shape of the lead wire protecting cord bush is substantially U-shaped having one opening, and the lead wire is inserted through the inside of the cord bush since the lead wire locking claw is projected from the opening. At the same time, since the wires are automatically bound by the lead wire locking claws, the assembling property is simpler and easier.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air conditioner main body showing one embodiment of the present invention.

FIG. 2 is a partial perspective view showing an embodiment of the present invention and showing engagement between an engagement flange and a protective cover.

FIG. 3 is a perspective view showing one embodiment of the present invention and showing how a control circuit and a protective cover are mounted on an outer casing.

FIG. 4 is an exploded perspective view of a control circuit mounting portion showing one embodiment of the present invention.

FIG. 5 is a sectional view of a control circuit portion showing an embodiment of the present invention.

FIG. 6 is a perspective view illustrating a control circuit according to an embodiment of the present invention;

FIG. 7 is a perspective view showing a conventional circuit protection cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air conditioner main body 11 Outer case 14 Engagement flange 16 Protective cover 19 Hook part 25 Control circuit 34 Screw 35 Partition plate 37 Switch 39 Code bush 40 Lead wire locking claw

Claims (3)

(57) [Claims] 1. An air conditioner main body having an outer case formed of a rectangular box, a control circuit mounted on an outer case side wall of the air conditioner main body, and controlling the air conditioner, and covering the control circuit. Comprising a protective cover screwed to the outer casing,
A circuit protection cover, wherein a step-shaped engagement flange is projected from a twill portion of the outer casing, and a hook portion engaged with the engagement flange is provided on the protection cover. 2. The circuit protection cover according to claim 1, wherein a partition plate provided with a lead wire protection code bush and a switch is provided above the control circuit. 3. The lead bush according to claim 2, wherein the lead bushing has a substantially U-shape having one opening, and a lead locking claw protruding from said opening. Circuit protection cover as described.