JPS583306Y2 - Protective cover for compressor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a protective cover that covers and protects both a Stark connected to a hermetic terminal of a compressor in a refrigerator and an overload relay installed near the Stark.

Next, a conventional protective cover will be explained with reference to FIGS. 1 to 4.

1 is a compressor, 2 is a protector, and 3 is a hermetic terminal, which has three pins 3a and is surrounded by the protector 2.

Reference numeral 4 denotes a starter which is fitted and fixed to the pin 3a of the hermetic terminal 3.

5 is an overload relay; 6 is a mounting plate; the overload relay 5 is inserted into a hole provided at one end 6a of the mounting plate 6, and is in contact with the outer periphery of the compressor 1;

7 is a mounting screw, and the mounting plate 6 is fixed to the protector 2 by this screw.

A protective cover 8 is fitted around the outer periphery of the protector 2 and covers the starter 4 and overload relay 5.

Reference numeral 9 denotes a pressing spring that prevents the protective cover 8 from falling off. Its bent end portion 9a is inserted into the mounting hole 2a provided in the protector 2 through the notches sa and sb of the protective cover 8, and the intermediate portion is inserted into the mounting hole 2a provided in the protector 2. It is applied to the end face of

The protective cover 8 is fixed by this presser spring 9.

In such a structure, when the protective cover 8 is exposed to water from the outside, the water enters through the upper mounting hole 2a of the presser spring 9, and the tip 9a of the presser spring 9 and the hermetic terminal 3 are easily exposed to water droplets. If this occurs, current flows through the presser spring 9 to the protector 2 (current flows through the hermetic terminal 3 to rotate the motor of the compressor 1 through the starter 4), resulting in poor insulation or damage to the protector 2 (see Figure 4). ) If the three bottles 3a are connected due to falling water droplets, a short circuit may occur. ○Also, water droplets that entered from section D (see Figure 2) may cause the terminals 5a of the overload relay 5 to connect.
If sb is connected, a short circuit will occur as well.

The present invention is intended to eliminate the above-mentioned drawbacks. The overload relay is housed and fixed without using mounting screws, and the protective cover is mounted on the side wall of the protector through the insertion hole provided on the side wall of the protective cover. It is fixed by a spring whose end is inserted into a hole.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 5 to 8.

In these figures, numerals 1 to 5 represent the same or equivalent elements as explained in connection with FIGS. 1 to 4.

10 is a protective cover that completely covers the hermetic terminal 3, protector 2, starter 4, and overload IJL--5.

An insertion hole 10b is provided in the side wall of the protective cover 10, mounting feet 10e, 10f, and 10g are integrally formed in the lower part, a lead wire extraction hole 1011 is provided, and four parts are provided in the central end surface. Convex portion 10 with 11d
c is formed.

The tip 10a of the protective cover 10 is in contact with the outer circumferential wall of the compressor 1 without any gap, except for the lead wire extraction hole 10h.

Reference numeral 11 denotes a pressing spring, the end portion 11b of which is inserted into the mounting hole 2b of the protector 2 through the insertion hole 10b of the protective cover 10.

An intermediate portion 11a of the pressing spring 11 is fitted into a recess 10d provided in the protrusion 10c.

The protective cover 10 is pressed against the outer circumferential wall of the compressor 1 by a pressing spring 11.

A protrusion 10k is formed on the inner end surface of the protective cover 10, and the starter 4 is pressed down via this protrusion 10k.

Overload relay 5 has mounting feet 10e, 10f, 1
It is inserted and fixed between 0g.

The temperature sensing portion 5c of the overload relay 5 is in contact with the outer peripheral surface of the compressor 1.

Conventionally, there is a gap L ((
(see Figure 3), the starter 4 could sometimes be pulled out due to shock during transportation or vibrations when starting and stopping the compressor 1, resulting in poor connection with the hermetic terminal 3. Since the invented protective cover 10 is adapted to hold down the starter 4 through the protrusion 10k, the starter 4 always maintains a normal connection.

In addition, the overload relay 5 has a mounting plate 6 like the conventional one.
Since it is stored and fixed within the mounting legs 10e, 10f, and 10g of the protective cover 10 without using the mounting screws 7, etc., the mounting is very simple and inexpensive.

As explained above, the present invention has a mounting foot 10e that has its tip 10a in contact with the smooth outer circumferential wall of the compressor 1 on the outside of the protector 2 and is formed at the 1ζ portion.

The protective cover 10 with the overload relay 5 housed and fixed in 10f and 10g is inserted from the insertion hole 10b provided in the side wall of the protective cover 10 to the mounting hole 2 provided in the side wall of the protector 2.
By fixing the end portion 11b to the presser spring 11 inserted into the end portion 11b, the rear portion of the starter 4 is held down via the protrusion 10k formed on the protective cover 10, and the temperature sensing portion 5c of the overload relay 5 is fixed to the compressor. Since the protective cover 10 is brought into contact with the outer peripheral wall of the protective cover 10, there is no risk of water entering into the protective cover 10 through the hole into which the end of the presser spring of the throat <-h section is inserted, thereby preventing poor insulation and short circuits due to water droplets. In addition, the connection between the hermetic terminal and the starter can be maintained reliably at all times, and the overload relay can be easily attached and detached.

Therefore, it is possible to provide a protective cover that is safer and cheaper than conventional ones.

[Brief explanation of the drawing]

Figure 1 is a front view showing a conventional protective cover attached to a refrigerator compressor, Figure 2 is an enlarged plan view taken from the line in Figure 1, and Figure 3 is a cross section in Figure 1. Enlarged plan view, 4th
The figure is an enlarged side view of the IV-IV cross section in Figure 1, Figure 5 is a top view showing the state in which the protective cover according to the present invention is attached to the refrigerator compressor, and Figure 6 is the line Vl-Vl in Figure 5. 7 is an enlarged cross-sectional side view taken along the line ■--■ in FIG. 5, and FIG. 8 is an enlarged cross-sectional view taken along the line ■-■ in FIG. 6. 1...Compressor, 2...Protector, 2
b...Mounting hole, 3...Hermetic terminal 4...Starter, 5...Overload relay 50...Temperature sensing part, 10・
...Protective cover, 10a...Tip, io
b...Insertion hole, IQe, 10f, 10g.
...Mounting foot, 10h...Lead wire pull-out hole, 10k...Protrusion, 11...Pushing spring, 11b...End.

Claims (1)

[Scope of utility model registration request] In the protective cover that covers the starter 4 connected to the hermetic terminal 3 of the compressor 1, the protector 2 surrounding the starter 4, and the overload relay 5 installed near the starter 4, the tip 10a is connected to the protector 2.
A protective cover 10 is placed in contact with the smooth outer circumferential wall of the compressor 1 on the outside of the compressor 1, and the overload relay 5 is housed and fixed in the mounting legs 10e, 10f, and 10g formed at the bottom of the protective cover 10.
The end portion 11b is inserted into the attachment hole 2b provided in the side wall of the protector 2 from the insertion hole 10b provided in the side wall of the protective cover 10, and is fixed by the presser spring 11, thereby allowing the protection cover 10 to be inserted through the protrusion 10k formed in the protective cover 10. A protective cover is characterized in that it holds down the rear part of the starter 4 and brings the temperature sensing part 5c of the overload relay 5 into contact with the outer circumferential wall of the compressor 1.