JPH0811087Y2 - Refrigerator unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a refrigerator unit including a compressor, an electric equipment box, and the like, and particularly to miniaturization of the electric equipment box.

(B) Conventional Technology As a conventional refrigerator unit, there is one such as described in Japanese Utility Model Laid-Open No. 60-146269.

What is described in this publication is a refrigerator unit in which a compressor, a liquid receiver, and an electrical equipment box are attached to one base.

(C) Problems to be solved by the invention In such a conventional refrigerator unit, with the recent energy saving, a phase advancing capacitor is attached to increase the power factor of the compressor and improve the operating efficiency of the refrigerator unit. Has been done.

Actually, the power factor is improved by installing the phase advancing capacitor, but there are many cases where the phase advancing capacitor is not installed due to the cost increase due to the installation of the phase advancing capacitor.

Furthermore, in places with substation equipment such as large stores, a phase-advancing capacitor is already installed on the high-voltage side,
In some cases, individual compressors did not require a phase advancing capacitor. Further, when a plurality of refrigerating units are used in parallel, the phase advancing capacitors may be attached together at one place and the phase advancing capacitors may not be attached to the individual compressors.

Considering such a situation, the number of cases in which the phase advancing capacitor is actually directly attached to the refrigerator unit is about half of all cases.

In order to mount a phase-advancing capacitor, it is necessary to take measures to dissipate the power of the phase-advancing capacitor and to secure a storage space. To store this phase-advancing capacitor in the electrical box, consider the installation conditions of peripheral equipment. Then, it was necessary to redesign the size of the electrical equipment box.

Considering the installation rate of the phase-advancing capacitor, the redesign of the electrical equipment box did not have much merit.

(D) Means for Solving Problems The present invention is directed to a compressor, a condenser,
In a refrigerator unit in which an expansion valve and a liquid receiver, and an electrical equipment box accommodating electrical parts for controlling the operation of the compressor are arranged exposed to the outside, a phase-advancing capacitor is used as an outline of the refrigerator unit. A mounting member is provided for mounting in the vicinity of the electrical equipment box without sticking out further.

(E) Action In such a refrigeration unit, the phase advancing capacitor is provided with a mounting member for mounting the phase advancing capacitor in the vicinity of the electrical equipment box without protruding from the outline of the unit, and the phase advancing capacitor It is possible to install.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
In FIG. 2 and FIG. 2, 1 is a refrigerator unit. A liquid receiver 2 has a cylindrical tank horizontally installed. Reference numeral 3 denotes a base of the refrigerator unit 1, which is fixed to both left and right lower ends of the liquid receiver 2 in the front-rear direction. 4, 5, 6, 7
Is a mount and is fixed to the upper part of the liquid receiver 2.

Reference numerals 8 and 9 denote compressors, which are attached to three attachment bases 4, 5 and 6 via elastic rubber 10. Blowers 11 and 12 are mounted on the left and right sides of the compressor using two mounting bases 5 and 6, respectively. By rotating these blowers 11 and 12, wind is applied to the compressors 8 and 9 to cool the compressors 8 and 9.

13 is an electric equipment box, and the compressors 8 and 9 and the blower 11 are inside.
It houses 12 electrical components to control the operation. 14
Is a support leg of the electrical equipment box 13, and the lower end 15 is fixed to the base 3. In addition, 16 is an accumulator.

In the refrigerator unit configured as described above, the compressors 8, 9, the condenser 17, the liquid receiver 2, the expansion valve 18, the evaporator 19, and the accumulator 16 are annularly connected by a refrigerant pipe as shown by a chain line. Constitutes a refrigeration cycle.

The refrigerant compressed by the compressors 8 and 9 is condensed in the condenser 17 and then stored in the liquid receiver 2. The liquid refrigerant stored in the liquid receiver 2 is decompressed by the expansion valve 18 and evaporated by the evaporator 19,
Cooling is performed. The refrigerant flowing out of the evaporator 19 is separated from the oil in the accumulator 16 and then returned to the compressor again.

Reference numeral 20 denotes a phase advancing capacitor, which is electrically connected to the compressors 8 and 9, respectively, and improves the power factor of the electric motor (compressor driving source). These phase advancing capacitors 20 are arranged along the bottom plate 21 of the electrical equipment box 13. That is, in FIG. 3, reference numeral 22 designates a shaped auxiliary plate (mounting member), and the upper portion 23 thereof is the electrical equipment box 13
It is fixed to the back plate 24 of the phase-advancing capacitor 20 and the rear part 26 of the phase-advancing capacitor 20 is applied to the lower part 25 of the phase-advancing capacitor 20.
It is fixed with snakes (bolts) 27. 28 is a lead wire of the phase advancing capacitor 20.
Connect to the electric circuit inside.

Since the phase advancing capacitor 20 is arranged along the bottom plate 21 of the electrical equipment box 13 in this manner, the capacitor 20 is accommodated within the outer dimensions a, b, c of the refrigerator unit 1 and does not protrude from the outer line.

Although not shown, various lead wires for controlling the operation of the compressors 8 and 9 and the blowers 11 and 12 are derived from the electrical equipment box 13.

By mounting the phase advancing capacitor 20 in the vicinity of the electrical equipment box 13 using the auxiliary plate 22 as described above,
The lead wires 28 of 20 can be easily drawn into the electrical equipment box 13, and the phase advance capacitor 20 can be easily attached.

Further, by exposing the phase advancing capacitor 20 to the outside of the electrical equipment box 13, the phase advancing capacitor 20 can be easily cooled, and abnormal heat generation of the phase advancing capacitor 20 can be suppressed.

4 to 6 are views showing another embodiment of the present invention. In these figures, 3 is a refrigerator unit,
An electric equipment box 31 and compressors 8 and 9 are arranged side by side on the liquid receiver 2. An accumulator 32 is provided behind the electrical equipment box 31. The L-shaped metal fitting (mounting member) 33 is mounted on the rear side surface 34 of the electrical equipment box 31. Using this metal fitting 33, two phase advance capacitors 35 are mounted side by side.

In this way, by arranging the phase advancing capacitor 35 in the dead space between the accumulator 32 and the electrical equipment box 31, the size and installation space of the refrigerator unit 30 will not become larger than conventional.

(G) Effect of the Invention As described above, the present invention provides a compressor, a condenser, an expansion valve, and a liquid receiver that constitute a refrigeration cycle, and an electrical equipment box in which electrical parts that control the operation of the compressor are stored. In the refrigerator unit arranged to be exposed to the outside, since the mounting member for mounting the phase advancing capacitor in the vicinity of the electrical box without sticking out of the outline of the refrigerator unit, the phase advancing capacitor is This phase-advancing capacitor can be easily attached without modifying the electrical equipment box.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a refrigerator unit showing an embodiment of the present invention, FIG. 2 is a plan view of the refrigerator unit shown in FIG.
FIG. 3 is a side view of a main part of the refrigerator unit shown in FIG.
4 is a front view of a refrigerator unit showing another embodiment of the present invention, FIG. 5 is a plan view of the refrigerator unit shown in FIG. 4, and FIG. 6 is a refrigerator unit shown in FIG. It is a principal part side view of FIG. 1, 30 ... Refrigerator unit, 8, 9 ... Compressor, 13, 31
...... Electrical equipment box, 20, 35 …… Phase advance capacitors.

Claims (1)

[Scope of utility model registration request] 1. A compressor, a condenser, which constitutes a refrigeration cycle,
In a refrigerator unit in which an expansion valve and a liquid receiver, and an electrical equipment box accommodating electrical parts for controlling the operation of the compressor are arranged exposed to the outside, a phase-advancing capacitor is used as an outline of the refrigerator unit. A refrigerator unit, characterized in that an attachment member is provided for attaching to the vicinity of the electrical equipment box without sticking out further.