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Condensing unit and cooling apparatus equipped with condensing unit

Inactive Publication Date: 2007-06-14
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014] The present invention solves the above disadvantages and offers a downsized and more inexpensive condensing unit by reducing the number of structural parts. In addition, the present invention offers a condensing unit and products equipped with this condensing unit, such as cooling apparatuses, that achieve high efficiency and high reliability for components of the unit by further applying other elements of the present invention.
[0016] This allows unitization of the compressor and heat exchanger without using a compressor-anchoring base plate, achieving a smaller condensing unit. Still more, non-use of the compressor-anchoring base plate reduces the number of structural parts, resulting in cost reduction. Furthermore, the present invention provides a basis for achieving higher efficiency and reliability for components such as the heat exchanger and compressor by further applying other elements of the present invention.
[0017] The present invention achieves a further downsized condensing unit at lower cost. In addition, the present invention provides a basis for achieving higher efficiency and reliability for components such as the heat exchanger and compressor by further applying other elements of the present invention.

Problems solved by technology

This results in, for example, an inability to secure a sufficient space for cooling objects in a cooling apparatus where the condensing unit is installed.
(2) The number of structural parts is large, including bracket 4 for attaching fan 2 and compressor-anchoring base plate 5 for attaching compressor 3, leading to higher costs.
Accordingly, sufficient heat exchange using the entire heat exchanger 1 cannot be expected, impeding improvement in heat exchange efficiency.
This makes it difficult to improve the coefficient of performance and reliability of compressor 3.
This makes it difficult to secure the reliability and efficiency typically of a driving motor.
In addition, fan 2 is installed in a small space, making maintenance work on fan 2 difficult.

Method used

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  • Condensing unit and cooling apparatus equipped with condensing unit
  • Condensing unit and cooling apparatus equipped with condensing unit
  • Condensing unit and cooling apparatus equipped with condensing unit

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Experimental program
Comparison scheme
Effect test

first embodiment

[0058]FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a side perspective view of condensing unit 510 in the first embodiment of the present invention. FIG. 4 is a perspective view of reinforcing plate 300. FIG. 5 is a side perspective view of a beverage dispenser as a cooling apparatus equipped with condensing unit 510 in the first embodiment of the present invention.

[0059] In FIGS. 1 to 5, heat exchanger 100 includes multiple fins 120, pipe 130 inserted roughly perpendicular to fins 120, and end plates 110 at both ends of fins 120. Fins 120, pipe 130, and end plates 110 are made of aluminum, copper and galvanized iron sheet, respectively.

[0060] Each of end plates 110 includes base 110C extending vertically and two flanges horizontally protruding in opposite directions from base 110C. In these two flanges, upper flange 110A is a bent portion for placing the compressor above, and lower flange 110B is a bent portion for anchoring the installed condensing unit. Base 110C,...

second embodiment

[0094]FIG. 6 is a side perspective view of condensing unit 520 in the second embodiment of the present invention.

[0095] In FIG. 6, heat exchanger 100 includes multiple fins 120, pipe 130 inserted roughly perpendicular to fins 120, and end plates 110 at both ends of fins 120.

[0096] End plates 110 include base 110C, and upper flange 110 and lower flange 110B protruding perpendicular to base 110C. Base 110C, upper flange 110A, and lower flange 110B are processed by bending sheet metal. Upper flange 110A is provided inward to fins 120, and lower flange 110B is provided in the direction opposite to the inward direction to fins 120. Here, upper flange 110A is a bent portion for placing the compressor above, and lower flange 110B is a bent portion for anchoring the installed condensing unit.

[0097] Reinforcing plate 300 includes top face 300A, two side faces 300B (as shown in FIG. 4) parallel to fins 120, and two side faces 300C (as shown in FIG. 4) perpendicular to fins 120. Top face 30...

third embodiment

[0103]FIG. 7 is a plan view of condensing unit 530 in the third exemplary embodiment of the present invention.

[0104] In FIG. 7, two fans 200 are disposed in parallel on top face 300A of reinforcing plate 300.

[0105] The operation of condensing unit 530 as configured above is described below.

[0106] To secure air volume of fan 200, a predetermined diameter is required for fan 200. If only one fan 200 is provided, the dimension in a longer direction (X direction in FIG. 7) becomes longer, causing wasted space. If two fans 200 with smaller outline, which have performance equivalent to one large fan 200, are disposed in parallel, the space can be more efficiently used. This leads to downsizing of the condensing unit 530. For example, if two small fans of 60 mm square are used instead of one large fan of 120 mm square, the size of the condensing unit can be reduced by 60 mm.

[0107] In this exemplary embodiment, two fans 200 are disposed in parallel. However, it is apparent that they may...

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Abstract

A condensing unit including a heat exchanger with end plates and a compressor. The heat exchanger is disposed below the compressor so that the end plate takes the load of the compressor. This eliminates the use of a compressor-anchoring base plate, and thus the number of structural parts is reduced. Accordingly, the condensing unit can be further downsized, and cost reduction can be achieved.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to condensing units in which the functions of a compressor and heat exchanger in a refrigerating system are unitized, and more particularly to condensing units employed in cooling apparatuses such as beverage dispensers and display cases. [0003] 2. Background Art [0004] A conventional condensing unit is disclosed in Japanese Patent No. 3667538, shown in FIG. 14. [0005] Cooling apparatuses such as icemakers, beverage dispensers, and display cases, in particular, require a machine section to take up minimal volume in order to increase ice storage volume by enlarging the ice-making area, or to increase stored beverage volume by enlarging the beverage storage area so that the frequency of beverage refills can be reduced. Accordingly, reduction of the vertical dimension of the condensing unit has also been required. [0006] In FIG. 14, heat exchanger 1, fan 2, and compressor 3 are disposed in...

Claims

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Application Information

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IPC IPC(8): F25B39/04
CPCF25B31/006F25D23/006
Inventor SHIMIZU, KAZUNORIKASE, HIROAKI
Owner PANASONIC CORP
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