JPH1114208A - Unit for fixing thermistor to air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit for fixing a thermistor to an air conditioner in which the risk of electric shock is eliminated at the time of cleaning while eliminating the possibility of disconnecting a wire. SOLUTION: A holder is split into first and second holders 11, 12 wherein the first holder comprises a recess 11b for passing a wire 9, a first securing part 11d for securing both holders, and a first clamping part 11c for clamping a U-shaped tube between both holders whereas the second holder comprises a thermistor cover 12a to be fitted in the first holder, a protrusion 12b to be fitted in the recess, a second securing part 12d corresponding to the first securing part 11d, and a second U-shaped tube clamping part 12c corresponding to the first U-shaped tube clamping part 11c. Since both holders are fitted and a U-shaped tube is clamped by both U-shaped tube clamping parts and then both securing parts are tightened by means of screws 20, or the like, electric shock due to touching a thermistor is eliminated while eliminating the possibility of disconnecting a wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermistor mounting device for an air conditioner, and more particularly to a device for protecting the inside of an air conditioner from detachment, destruction, electric shock and the like during cleaning.

[0002]

2. Description of the Related Art As shown in FIGS. 6 and 7, a thermistor mounting device for an air conditioner is provided with a plurality of fins 1, side plates 2 and a U-shape installed in an air passage connecting an inlet and an outlet. A holder 6 having a clamping portion 6a for clamping an electric wire is inserted between the fins 1 on the suction port side of the heat exchanger 5 composed of the heat transfer tubes 4 and the like connected by the tubes 3, and is engaged with the heat transfer tubes 4 to hold the electric wires. An electric wire 9 led out from the electrical box 7 to the portion 6a and connected to a thermistor 8 at the tip is held therebetween. However, in this configuration, since the thermistor 8 is exposed, as shown in FIG. 8, when the air filter 52 is removed from the front panel 51 and the inside of the air conditioner 50 is cleaned, If the high voltage is applied to the thermistor 8, there is a risk of electric shock. In addition, since the holder is merely engaged with the heat transfer tube, the holder is easily detached, and there is a possibility that the electric wire may be pulled and disconnected. Further, since the electric wire 9 is press-fitted into the holding portion 6a, the electric wire is easily cut, and there is a possibility that the electric wire 9 is short-circuited and breaks down.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and provides a thermistor mounting device for an air conditioner, which eliminates the risk of electric shock during cleaning and eliminates the possibility of breaking an electric wire. It is intended to be.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by providing a plurality of fins, a heat transfer tube connected to a side plate by a U-shaped tube, and the like in an air passage connecting an inlet and an outlet. A heat exchanger is installed, a holder is placed on the suction side of the heat exchanger, and a thermistor that detects the temperature on the windward side of the heat exchanger is connected to the electric wire drawn out of the electrical box. A thermistor mounting device for an air conditioner, wherein the holder is divided into two parts, a first holder and a second holder, back and forth, and the first holder has a concave stripe portion through which the electric wire passes; A first fixing portion for fixing the two holders, and a first U-tube holding portion for holding the U-shaped tube between the two holders are provided, and the second holder is fitted to the first holder. Thermistor cover to cover the thermistor And a second fixing portion corresponding to the fixing portion, and a second U-shaped tube holding portion corresponding to the first U-shaped tube holding portion. Are fitted to each other to clamp the U-shaped tube by the two U-shaped tube clamping portions, and to fix both fixing portions with screws or the like.

[0005] Further, the first fixing part is formed by a screw hole, a second part.
The fixing portion is formed as a through hole and a screw is screwed and fixed, or one of the fixing portions is a locking hole and the other is a locking claw. Further, the both fixing portions are provided on both the thermistor cover side and the U-tube holding portion side, and one of the both fixing portions is
A screw hole is formed on the first holder side, a screw hole is provided on the second holder side, and a screw is screwed into the screw hole from the hole to fix the other. And

Further, the recessed portion is formed of two flat plates which stand upright in parallel with the front surface of the first holder, or is formed in a substantially U-shaped cross section on the front surface of the first holder. I did it.

Further, the thermistor cover is formed in a box shape with one opening, and the opening is fitted to the first holder. In addition, ventilation holes were formed in the front surface of the thermistor cover. Further, a notch portion for inserting the electric wire is provided on a side surface of the thermistor cover. In addition, the notches are provided on both side surfaces of the thermistor cover.

[0008] Further, the U-tube holding portion is provided on both sides of the fixing portion.

[0009]

As described above, in the thermistor mounting apparatus for an air conditioner according to the present invention, the holder is divided into two parts, a first holder and a second holder, before and after.
A first holder, a concave streak portion through which the electric wire passes, a first fixing portion for fixing the two holders, and a first U-shaped tube holding portion for holding the U-shaped tube between both holders; A second holder, a thermistor cover fitted to the first holder to cover the thermistor, a convex ridge fitted into the concave ridge to press the electric wire, and a second fixing corresponding to the fixing part And a second U-shaped tube holding portion corresponding to the first U-shaped tube holding portion.
The U-shaped tube is clamped by the tube clamping portion, and both fixing portions are fixed with screws etc., so that the thermistor is not touched, the holder does not come off, and the wires are not press-fitted, so the wire is disconnected. Eliminates the possibility of

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a thermistor mounting device for an air conditioner according to the present invention. FIG. 1 is an exploded perspective view of a main part showing an embodiment of a thermistor mounting device for an air conditioner according to the present invention, and FIG. 2 is a sectional view of the main part. In the figures, the same functions as those in FIGS. 7 and 8 use the same reference numerals, and description thereof will be omitted. Reference numeral 11 denotes a first holder, a heat insulating plate 11a for preventing radiant heat of the heat exchanger 5, and a concave strip 11 for passing an electric wire 9 having a thermistor 8 connected to a front surface of the heat insulating plate 11a.
b is provided. In addition, one end of the heat insulating plate 11a is bent rearward, and a first U-shaped tube holding portion 11c for holding the upper and lower U-shaped tubes 3 is provided at the end. A first fixing portion 11d having a cylindrical shape and having a screw hole 11d1 is provided upright from the center of the first U-shaped tube holding portion 11c.

Reference numeral 12 denotes a second holder, which is formed in a box shape with one opening, and has a thermistor cover 12a which covers the thermistor 8 by fitting the opening into the heat insulating plate 11a, and a front surface of the thermistor cover 12a. There is provided a ventilation hole 12a1 formed in a lattice shape having a size that does not allow a finger to be inserted therein, and a convex ridge 12b fitted into the concave ridge 11b is provided on the back surface. Then, one end of the thermistor cover 12a is provided with a second U-shaped tube corresponding to the first U-shaped tube holding portion 11c.
A second fixing portion 12d including a tube holding portion 12c and an insertion hole 12d1 corresponding to the screw hole 11d1 is provided.

3 and 4 are a side perspective view and a plan view, respectively, of a main part of another embodiment of the thermistor mounting device for an air conditioner according to the present invention. As shown in the figure, cutouts 13a and 13b through which the electric wires 9 are inserted are provided on both sides of the thermistor cover 12a.

FIG. 5 is an exploded perspective view of a main part of another embodiment of the thermistor mounting device for an air conditioner according to the present invention.
In the example of FIG. 5, as shown in FIG. 5A, the thermistor cover 12a is not easily opened by hand even if a soft material is used as the material of the second holder 12, as shown in FIG. A fixing portion 12e having a through hole 12e1 for fixing the holders 11 and 12 is provided at the tip of
A fixing portion 11e having a screw hole 11e1 corresponding to the through hole 12e1 is provided at the tip of the heat insulating plate 11a of the holder 11, or a locking hole 12f is formed at the tip of the thermistor cover 12a as shown in FIG. , And a locking claw 11f that locks into the locking hole 12f is provided at the tip of the heat insulating plate 11a.

Next, a description will be given of a procedure for mounting the above-described configuration. First, as shown in FIG. 1, the first U-tube holding portion 11 c of the first holder 11 is mounted in contact with the rear of the U-shaped tube 3, and the concave strip 1 of the first holder 11 is mounted.
The electric wire 9 connected to the thermistor 8 is passed through 1b so that the thermistor 8 is arranged on the front surface of the heat insulating plate 11a. Next, the thermistor 8 is covered by fitting the convex ridge 12b of the second holder 12 into the concave ridge 11b to hold down the electric wire 9 and fitting the opening of the thermistor cover 12a to the heat insulating plate 11a. Further, the second U-shaped tube holding portion 12c is fitted to the first U-shaped tube holding portion 11c, and the second fixed portion 12d is fitted to the first fixed portion 11d. Then, the insertion hole 12 provided in the second fixing portion 12d is formed.
A screw 20 is screwed from d1 into a screw hole 11d1 provided in the first fixing portion 11d to fix the second holder 12 to the first holder 11, and to hold the first U-shaped tube holding portion 11c.
The second U-tube holding portion 12c holds the U-tube 3.

In the case of the example shown in FIG. 5A, a screw is further screwed from the through hole 12e1 to the screw hole 11e1 so that the cover cannot be easily turned by hand. In the case of FIG. 5- (B), the locking claw 11f is locked in the locking hole 12f so that the cover cannot be easily turned by hand.

[0016]

As described above, according to the thermistor mounting apparatus for an air conditioner according to the present invention, the holder is divided into two parts, the first holder and the second holder, and the first holder is formed. A first fixing portion for fixing the wire between the holders, a first fixing portion for fixing the two holders, and a first U-tube holding portion for holding the U-shaped tube between the holders; A thermistor cover that fits into the first holder to cover the thermistor; a convex ridge that fits into the concave ridge and presses an electric wire; and a second ridge corresponding to the fixing part.
Are provided, and a second U-tube holding portion corresponding to the first U-tube holding portion is provided. The two holders are fitted to hold the U-tube by the U-tube holding portions. Then, both fixing parts are fixed with screws etc., so that the thermistor is not touched, the holder does not come off, and there is no need to press-fit the wires, so there is no possibility of disconnection, and you will get an electric shock during cleaning It is possible to provide a thermistor mounting device for an air conditioner that has no danger and that eliminates the possibility of breaking an electric wire.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an embodiment of a thermistor mounting device for an air conditioner according to the present invention.

FIG. 2 is a cross-sectional view of a main part showing an embodiment of a thermistor mounting device for an air conditioner according to the present invention.

FIG. 3 is a side perspective view of a main part showing another embodiment of the thermistor mounting device for an air conditioner according to the present invention.

FIG. 4 is a perspective plan view showing a main part of another embodiment of the thermistor mounting device for an air conditioner according to the present invention.

FIG. 5 is an exploded perspective view of a main part of another embodiment of the thermistor mounting device for an air conditioner according to the present invention.

FIG. 6 is a perspective view showing a main part of a conventional thermistor mounting device for an air conditioner.

FIG. 7 is a perspective plan view showing a main part of a conventional thermistor mounting device for an air conditioner.

FIG. 8 is an explanatory view showing a conventional thermistor mounting device for an air conditioner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fin 2 side plate 3 U-shaped tube 4 heat transfer tube 5 heat exchanger 6 holding portion 7 electrical box 8 thermistor 9 electric wire 11 first holder 11a heat insulating plate 11b concave streak portion 11c first U-shaped tube holding portion 11d first Fixing portion 11d1 Screw hole 11e Fixing portion 11e1 Screw hole 11f Locking claw 12 Second holder 12a Thermistor cover 12a1 Vent hole 12b Protrusion 12c Second U-tube holding portion 12d Second fixing portion 12d1 Insertion hole 12e Part 12e1 Through hole 12f Locking hole 13a, 13b Notch 20 Screw

Claims (13)

[Claims] 1. A heat exchanger comprising a plurality of fins and a heat transfer tube connected by a U-shaped tube to a side plate in an air passage connecting an inlet and an outlet. A thermistor mounting device for an air conditioner, wherein a holder is disposed on the side, and a thermistor for detecting a temperature on the windward side of the heat exchanger is mounted on the holder and connected to an electric wire led out of an electrical box, Are divided into two parts, a first holder and a second holder, in front and back, and a concave strip portion through which the electric wire passes, a first fixing portion for fixing between the two holders, and both holders in the first holder. A first U-tube holding portion for holding the U-shaped tube, a thermistor cover fitted to the first holder to cover the thermistor in the second holder, and fitted in the concave ridge portion. Corresponding to the ridge that holds down the wire A second fixing portion and a second U-shaped tube holding portion corresponding to the first U-shaped tube holding portion are provided, the holders are fitted to each other, and the U-shaped tube holding portion is used by the both U-shaped tube holding portions. The fixing device for an air conditioner, wherein both fixing portions are fixed by screws or the like. 2. The air conditioner according to claim 1, wherein the first fixing portion is a screw hole and a second fixing portion is a through hole, and a screw is screwed and fixed. Thermistor mounting device. 3. The thermistor mounting device for an air conditioner according to claim 1, wherein one of the two fixing portions is a locking hole and the other is a locking claw. 4. The thermistor mounting device for an air conditioner according to claim 1, wherein the both fixing portions are provided on both the thermistor cover side and the U-tube holding portion side. 5. One of the two fixing portions includes a locking hole and a locking claw, and the other includes a screw hole in the first holder side and a second hole.
2. A through-hole is provided on the holder side of the frame, and a screw is screwed into the screw hole from the through-hole to be fixed.
The thermistor mounting device for an air conditioner according to the above. 6. The thermistor mounting device for an air conditioner according to claim 1, wherein said concave streak portion is formed by two flat plates standing upright in parallel with the front surface of said first holder. 7. The device according to claim 1, wherein the concave ridge portion is formed in a substantially U-shaped cross section on a front surface of the first holder.
The thermistor mounting device for an air conditioner according to the above. 8. The thermistor mounting for an air conditioner according to claim 1, wherein said thermistor cover is formed in a box shape with one opening, and said opening is fitted to said first holder. apparatus. 9. The thermistor mounting device for an air conditioner according to claim 1, wherein a vent hole is formed in a front surface of said thermistor cover. 10. The thermistor mounting device for an air conditioner according to claim 9, wherein said ventilation holes are formed in a shape such as a lattice having a size in which a finger cannot enter. 11. A notch portion for inserting the electric wire is provided on a side surface of the thermistor cover.
The thermistor mounting device for an air conditioner according to the above. 12. The thermistor mounting device for an air conditioner according to claim 11, wherein said notch portions are provided on both side surfaces of said thermistor cover. 13. The thermistor mounting device for an air conditioner according to claim 1, wherein said U-tube holding portion is provided on both sides of said fixing portion.