JP4252340B2 - refrigerator - Google Patents

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Publication number
JP4252340B2
JP4252340B2 JP2003078499A JP2003078499A JP4252340B2 JP 4252340 B2 JP4252340 B2 JP 4252340B2 JP 2003078499 A JP2003078499 A JP 2003078499A JP 2003078499 A JP2003078499 A JP 2003078499A JP 4252340 B2 JP4252340 B2 JP 4252340B2
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JP
Japan
Prior art keywords
fan
fans
refrigerator
heat exchanger
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003078499A
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Japanese (ja)
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JP2004286294A (en
Inventor
公男 伏見
肇 佐野
真人 東平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Carrier Corp
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Toshiba Carrier Corp
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Priority to JP2003078499A priority Critical patent/JP4252340B2/en
Publication of JP2004286294A publication Critical patent/JP2004286294A/en
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Publication of JP4252340B2 publication Critical patent/JP4252340B2/en
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  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は冷凍機に係わり、特に3個以上のファンモータ及びファンを使用する冷凍機に関する。
【0002】
【従来の技術】
従来、冷凍機において、定速の送風機を3台以上設ける場合、熱交換器の大きさに対応させて、より大きな送風量を得るために、送風機のファンの直径を最大限大きくし、さらに、全て同一直径にしている。また、ファンモータの出力はファンの送風能力を最大限引き出すために、同一出力で最大限の熱交換能力を確保するようにしていた。
【0003】
しかしながら、このような従来のファンとファンモータの組合せでは、隣り合うファンの送風が互いに干渉し合い、耳障りなうなり音が発生する。また、大きな直径のファンを3台以上運転して大風量を得ているので、大きな騒音が発生する。さらに、大きな直径のファンを駆動する大出力のファンモータを3台以上使用するので消費電力が大きく、省エネルギ運転にならない等の欠点があった。
【0004】
なお、3台以上の電動ファンを備える冷凍機は既に存在する(例えば、特許文献1)が、特許文献1に記載の冷凍機は、可変速度型と定速型の電動ファンの組合せからなる3台以上の電動ファンを備えるものであり、可変速度型電動ファンを用いるため、モータが高価になり、また、制御回路も複雑になる。
【0005】
【特許文献1】
特開平10−220847号公報(段落番号[0014]、[0015]、第1、図5)
【0006】
【発明が解決しようとする課題】
本発明は上述した事情を考慮してなされたもので、静かで省エネルギ運転が実現され、構成部品が効果的に冷却され、かつ安価な冷凍機を提供することを目的とする。
【0007】
【課題を解決するための手段】
上記目的を達成するため、本発明の1つの態様によれば、定速のファンモータ及びファンを3個以上有し、これらを熱交換器に対して並列に並べて使用する冷凍機において、両端以外に配置されるファンモータは、両端のファンモータよりも小出力であり、かつ、両端に配置される前記ファンのみに対向して、冷却するのが好ましい構成部品が配置されていることを特徴とする冷凍機が提供される。これにより、安価で、熱交換器を通過する風速が平均化され、熱交換効率が向上し、隣り合うファンの送風が互いに干渉し合うことがなく、耳障りなうなり音、大きな騒音の発生がなく、静かで省エネルギ運転が実現され、構成部品が効果的に冷却され、冷凍機の信頼性が向上し、小さいファンモータに対向して構成部品を配置していないので、通風抵抗が増すことがなく、熱交換器に対するトータルの送風分布を損なうことなく、熱交換能力を最大限引出すことができ、また、両端以外に配置した電動ファンの直径を小さくした場合、両端に配置した電動ファンを内側の電動ファンにその半径の減少分の寸法を近づけて配置できて、熱交換器の両端の端板部分の吸込み面積を拡大でき、熱交換効率を向上させることができる。また、安価になりまた、制御回路も簡素化され、さらに、冷却するのが好ましい構成部品が冷却される。
【0009】
また、本発明の他の態様によれば、定速のファンモータ及びファンを3個以上有し、これらを熱交換器に対して並列に並べて使用する冷凍機において、両端以外に配置されるファンは、両側のファンよりも小直径であり、かつ、両端に配置される前記ファンのみに対向して、冷却するのが好ましい構成部品が配置されていることを特徴とする冷凍機が提供される。これにより、特にうなり音が低減され、さらに、冷却するのが好ましい構成部品が冷却される。
【0010】
【発明の実施の形態】
以下、本発明に係わる冷凍機の実施形態について添付図面を参照して説明する。
【0011】
図1は本発明に係わる冷凍機の平面図である。
【0012】
図1に示すように、冷凍機1は、基台2上に配置され冷媒を圧縮する圧縮機3と、この圧縮機3からの高圧冷媒を凝縮する凝縮器としての熱交換器4と、この熱交換器4に送風する電動ファン5を有し、膨張弁6を介して、例えば、冷凍庫あるいは冷蔵庫7に設けられた蒸発器8に接続されている。
【0013】
図1乃至図3に示すように、上記電動ファン5は、1個の熱交換器4に対してその長手方向に並列に、3個以上例えば3個配置されており、これらに用いられるファンモータは、いずれも定速型であり、さらに、両端に配置される電動ファン5aの容量に対して、これ以外、すなわち真中に配置される電動ファン5bの容量は小さく設定されている。これら3個以上のファンモータのうち、真中に配置されるファンモータ5mは、例えば出力8Wで、両端に配置されるファンモータ5mの出力例えば12Wよりも小さく設定されている。また、真中に配置されるファン5fは、例えば直径230mmで、両端に配置されるファン5fの直径例えば250mmよりも小さく設定されている。真中に配置されるファン5fの直径を両端に配置されるファン5fより小さくすることにより、この両者をより近接させることができる。そのように近接させた場合、熱交換器4の両端の端板(4a)とファン5fの外周部との間に寸法的余裕ができ、熱交換器4の吸込み面積を拡大できる。全てのモータを定速型にすることにより、安価になりまた、制御回路も簡素化される。
【0014】
なお、ファン5f、fの周囲に近接して設けられるベルマウスは、大きい直径に合せて3個共直径250mmのファンに合せたものであってもよく、あるいは直径230mm及び250mmに各々合せたものであってもよい。
【0015】
図2及び図4に示すように、電動ファン5のうち、両端に配置される電動ファン5aに対向して、いずれも冷却するのが好ましい圧縮機3、冷凍機1を制御する電気部品(図示せず)が一体的に収容される電気部品箱9、圧縮機3と機外の蒸発器8に連通する吐出側パックドバルブ10a、吸込側パックドバルブ10bとの間に設けられた受液器11等の構成部品が配置されている。
【0016】
なお、図中符号12は圧縮機3の吸込側に接続されたサクションカップ、13はサクションカップ12と吸込側パックドバルブ10b間に設けられたアキュムレータ、14はサクションカップ12とアキュムレータ13を連通する吸込管、15は圧縮機3と熱交換器4を連通する吐出管である。
【0017】
本実施形態の冷凍機は上記構造を有するので、熱交換器4を通過する風速が平均化され、熱交換効率が向上し、隣り合うファンの送風が互いに干渉し合うことがなく、耳障りなうなり音が発生することもなく、さらに、大きな直径のファンを3台以上運転することがないので、大きな騒音が発生することがなく、さらに、消費電力を抑えて、省エネルギ運転になる。また、両端に配置される電動ファンに対向して配置される、冷却するのが好ましい構成部品が効果的に冷却され、冷凍機の信頼性が向上する。また、ファン直径及びファン出力の小さいファンモータには、これに対向して冷却するのが好ましい構成部品を配置していないので、通風抵抗が増すことがなく、熱交換器に対するトータルの送風分布を損なうことなく、熱交換能力を最大限引出すことができる。さらに、両端以外に配置した電動ファンの直径を小さくした場合、両端に配置した電動ファンを内側の電動ファンにその半径の減少分の寸法を近づけて配置できる。これにより、熱交換器の両端の端板部分の吸込み面積を拡大でき、熱交換効率を向上させることができる。
【0018】
なお、運転コンデンサが使用される3個以上の同一出力のファンモータを使用し、両端以外に配置されるファンモータの運転コンデンサの容量を小さくすることでも、ファンモータの出力を小さくすると同様に省エネルギ効果が得られる。
【0019】
【発明の効果】
本発明に係わる冷凍機によれば、静かで省エネルギ運転が実現され、構成部品が効果的に冷却される冷凍機を提供することができる。
【図面の簡単な説明】
【図1】 本発明に係わる冷凍機の平面図。
【図2】 本発明に係わる冷凍機の斜視図。
【図3】 本発明に係わる冷凍機の側面図。
【図4】 本発明に係わる冷凍機の側面図。
【符号の説明】
1…冷凍機、2…基台、3…圧縮機、4…熱交換器、4a…端板、5…電動ファン、5a…両端の電動ファン、5b…真中の電動ファン、5f…ファン、5f…ファン、5m…ファンモータ、5m…ファンモータ、6…膨張弁、7…冷凍庫、8…蒸発器、9…電気部品箱、10a…吐出側パックドバルブ、10b…吸込側パックドバルブ、11…受液器、12…サクションカップ、13…アキュムレータ、14…吸込管、15…吐出管。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator, and more particularly to a refrigerator using three or more fan motors and fans.
[0002]
[Prior art]
Conventionally, in a refrigerator, when three or more constant-speed blowers are provided, in order to obtain a larger blown amount corresponding to the size of the heat exchanger, the fan diameter of the blower is maximized, All have the same diameter. In addition, the fan motor output is designed to ensure the maximum heat exchange capacity with the same output in order to maximize the fan air blowing capacity.
[0003]
However, in such a conventional combination of a fan and a fan motor, the ventilation of adjacent fans interferes with each other, and an irritating beat sound is generated. Further, since three or more large-diameter fans are operated to obtain a large air volume, a large noise is generated. Further, since three or more high-power fan motors for driving a fan with a large diameter are used, there are disadvantages such as high power consumption and energy saving operation.
[0004]
In addition, although the refrigerator provided with 3 or more electric fans already exists (for example, patent document 1), the refrigerator of patent document 1 consists of the combination of a variable speed type and a constant speed type electric fan 3 Since the motor is provided with more than one electric fan and the variable speed electric fan is used, the motor becomes expensive and the control circuit becomes complicated.
[0005]
[Patent Document 1]
JP-A-10-220847 (paragraph numbers [0014], [0015], first, FIG. 5)
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an inexpensive refrigerator that realizes quiet and energy-saving operation, effectively cools components, and is inexpensive.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to one aspect of the present invention, in a refrigerator having three or more constant-speed fan motors and fans and using them in parallel with a heat exchanger, other than both ends The fan motor arranged at the end has a smaller output than the fan motors at both ends, and is arranged with components that are preferably cooled to face only the fans arranged at both ends. A refrigerator is provided. As a result, it is inexpensive, the wind speed passing through the heat exchanger is averaged, the heat exchange efficiency is improved, the ventilation of adjacent fans does not interfere with each other, and there is no generation of annoying bellows or loud noises Quiet, energy-saving operation is realized, components are effectively cooled, the reliability of the refrigerator is improved, and the components are not placed opposite the small fan motor, which can increase ventilation resistance In addition, the heat exchange capacity can be drawn to the maximum without impairing the total air distribution to the heat exchanger, and if the diameter of the electric fan arranged at both ends is reduced, the electric fan arranged at both ends Thus, the size of the electric fan can be arranged close to the radius, the suction area of the end plate portions at both ends of the heat exchanger can be increased, and the heat exchange efficiency can be improved. Also, the cost is reduced, the control circuit is simplified, and the components that are preferably cooled are cooled.
[0009]
Further, according to another aspect of the present invention, in a refrigerator having three or more constant speed fan motors and fans and using them in parallel with a heat exchanger, the fans are arranged at other than both ends. Is provided with a refrigerator that is smaller in diameter than the fans on both sides and that has components that are preferably cooled, facing only the fans disposed at both ends. . This particularly reduces the roar and further cools components that are preferably cooled.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a refrigerator according to the present invention will be described below with reference to the accompanying drawings.
[0011]
FIG. 1 is a plan view of a refrigerator according to the present invention.
[0012]
As shown in FIG. 1, the refrigerator 1 includes a compressor 3 that is arranged on a base 2 and compresses a refrigerant, a heat exchanger 4 as a condenser that condenses the high-pressure refrigerant from the compressor 3, The heat exchanger 4 has an electric fan 5 that blows air, and is connected via an expansion valve 6 to, for example, an evaporator 8 provided in a freezer or a refrigerator 7.
[0013]
As shown in FIG. 1 to FIG. 3, three or more, for example, three electric fans 5 are arranged in parallel in the longitudinal direction with respect to one heat exchanger 4. Are constant-speed types, and the capacity of the electric fan 5b arranged at the other end, that is, in the middle is set smaller than the capacity of the electric fan 5a arranged at both ends. Of these three or more of the fan motor, a fan motor 5 m b arranged in the middle is for example output 8W, is set smaller than the output example 12W of the fan motor 5 m a which are arranged at both ends. Also, the fan 5f b arranged in the middle is for example a diameter of 230 mm, is set smaller than the diameter for example 250mm fan 5f a disposed at both ends. By smaller than fan 5f a disposed the diameter of the fan 5f b arranged in the middle on both ends, it can be more close to both. In the case of such close proximity, there is a dimensional allowance between the end plates (4a) at both ends of the heat exchanger 4 and the outer periphery of the fan 5f, and the suction area of the heat exchanger 4 can be expanded. By making all the motors constant speed, the cost is reduced and the control circuit is simplified.
[0014]
The bell mouths provided in the vicinity of the fans 5f a and f b may be three fans each having a diameter of 250 mm according to the large diameter, or may be adjusted to the diameters of 230 mm and 250 mm, respectively. It may be.
[0015]
As shown in FIGS. 2 and 4, among the electric fans 5, the electric parts that control the compressor 3 and the refrigerator 1 that are preferably cooled in opposition to the electric fans 5 a disposed at both ends (see FIG. 2). A liquid receiver 11 provided between the electric component box 9 in which the compressor 3 is integrally accommodated, the discharge side packed valve 10a communicating with the compressor 8 and the evaporator 8 outside the machine, and the suction side packed valve 10b. Etc. are arranged.
[0016]
In the figure, reference numeral 12 denotes a suction cup connected to the suction side of the compressor 3, 13 denotes an accumulator provided between the suction cup 12 and the suction side packed valve 10b, and 14 denotes suction for communicating the suction cup 12 and the accumulator 13. A pipe 15 is a discharge pipe that communicates the compressor 3 and the heat exchanger 4.
[0017]
Since the refrigerator of the present embodiment has the above-described structure, the wind speed passing through the heat exchanger 4 is averaged, the heat exchange efficiency is improved, and the air blown from adjacent fans does not interfere with each other, which is annoying. No noise is generated, and more than three large-diameter fans are not operated. Thus, no large noise is generated, and further, power consumption is reduced and energy saving operation is performed. In addition, the components that are preferably opposed to cooling that are disposed opposite to the electric fans disposed at both ends are effectively cooled, and the reliability of the refrigerator is improved. In addition, fan motors with a small fan diameter and fan output are not equipped with components that are preferably cooled against the fan motor, so that ventilation resistance does not increase and the total air distribution to the heat exchanger is reduced. The heat exchange capacity can be maximized without loss. Furthermore, when the diameter of the electric fan arranged at both ends is reduced, the electric fan arranged at both ends can be arranged close to the inner electric fan in the size of the reduced radius. Thereby, the suction area of the end plate part of the both ends of a heat exchanger can be expanded, and heat exchange efficiency can be improved.
[0018]
In addition, using three or more fan motors with the same output that use operating capacitors and reducing the capacity of the operating capacitors of the fan motors arranged at both ends can also be reduced by reducing the fan motor output. Energy effect is obtained.
[0019]
【The invention's effect】
According to the refrigerator according to the present invention, it is possible to provide a refrigerator in which quiet and energy saving operation is realized and components are effectively cooled.
[Brief description of the drawings]
FIG. 1 is a plan view of a refrigerator according to the present invention.
FIG. 2 is a perspective view of a refrigerator according to the present invention.
FIG. 3 is a side view of a refrigerator according to the present invention.
FIG. 4 is a side view of a refrigerator according to the present invention.
[Explanation of symbols]
1 ... refrigerator, 2 ... base, 3 ... compressor, 4 ... heat exchanger, 4a ... end plate, 5 ... electric fan, 5a ... across the electric fan, 5b ... electric fan in the middle, 5f a ... fan, 5f b ... fan, 5m a ... fan motor, 5m b ... fan motor, 6 ... expansion valve, 7 ... freezer, 8 ... evaporator, 9 ... electric component box, 10a ... discharge side packed valve, 10b ... suction side packed valve , 11 ... liquid receiver, 12 ... suction cup, 13 ... accumulator, 14 ... suction pipe, 15 ... discharge pipe.

Claims (2)

定速のファンモータ及びファンを3個以上有し、これらを熱交換器に対して並列に並べて使用する冷凍機において、
両端以外に配置されるファンモータは、両端のファンモータよりも小出力であり、かつ、
両端に配置される前記ファンのみに対向して、冷却するのが好ましい構成部品が配置されている
ことを特徴とする冷凍機。
In a refrigerator that has three or more constant-speed fan motors and fans and uses them in parallel with a heat exchanger,
The fan motors arranged at both ends have a smaller output than the fan motors at both ends, and
A refrigerating machine in which components that are preferably cooled are disposed so as to face only the fans disposed at both ends.
定速のファンモータ及びファンを3個以上有し、これらを熱交換器に対して並列に並べて使用する冷凍機において、
両端以外に配置されるファンは、両側のファンよりも小直径であり、かつ、
両端に配置される前記ファンのみに対向して、冷却するのが好ましい構成部品が配置されている
ことを特徴とする冷凍機。
In a refrigerator that has three or more constant-speed fan motors and fans and uses them in parallel with a heat exchanger,
Fans arranged at both ends are smaller in diameter than fans on both sides, and
A refrigerating machine in which components that are preferably cooled are disposed so as to face only the fans disposed at both ends.
JP2003078499A 2003-03-20 2003-03-20 refrigerator Expired - Fee Related JP4252340B2 (en)

Priority Applications (1)

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JP4252340B2 true JP4252340B2 (en) 2009-04-08

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US20110100342A1 (en) * 2009-11-02 2011-05-05 International Engine Intellectual Property Company Llc Forced convection egr cooling system
EP2602566A4 (en) * 2010-08-04 2018-05-09 Mitsubishi Electric Corporation Air conditioner
CN104956155B (en) * 2012-12-21 2017-05-03 特灵国际有限公司 System and method for controlling a system that includes variable speed compressor

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JPS52137340U (en) * 1976-04-14 1977-10-18
JPS6069467A (en) * 1983-09-26 1985-04-20 三洋電機株式会社 Blasting device for condenser
JP3223099B2 (en) * 1996-02-26 2001-10-29 三洋電機株式会社 Refrigeration equipment
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