JP2014055678A - Refrigerator - Google Patents
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- JP2014055678A JP2014055678A JP2012199017A JP2012199017A JP2014055678A JP 2014055678 A JP2014055678 A JP 2014055678A JP 2012199017 A JP2012199017 A JP 2012199017A JP 2012199017 A JP2012199017 A JP 2012199017A JP 2014055678 A JP2014055678 A JP 2014055678A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
本発明は、冷蔵庫に関するものである。 The present invention relates to a refrigerator.
常時通電が行われる冷蔵庫に蓄電池等の補助電源を搭載し、この補助電源と商用電源の双方で動作する冷蔵庫が知られている。図５は、特許文献１に示された冷蔵庫３００の構成を示すブロック図である。 There is known a refrigerator in which an auxiliary power source such as a storage battery is mounted on a refrigerator that is always energized, and operates with both the auxiliary power source and a commercial power source. FIG. 5 is a block diagram illustrating a configuration of the refrigerator 300 disclosed in Patent Document 1. As illustrated in FIG.
特許文献１の冷蔵庫３００は、入力端子ａ、ｂ、系統側スイッチ３０８、整流回路３０１、インバータ回路３０２、充放電回路３０３、制御回路３０４、庫内温度センサ３０５、電池側スイッチ３０６、充電用スイッチ３０７、コンプレッサ用モータ３０９、蓄電池ユニット３１０を備えている。又、インバータ３０２、充放電回路３０３、庫内温度センサ３０５、電池側スイッチ３０６、充電用スイッチ３０７、系統側スイッチ３０８の各々は制御回路３０４により制御される。 The refrigerator 300 of Patent Document 1 includes input terminals a and b, a system side switch 308, a rectifier circuit 301, an inverter circuit 302, a charge / discharge circuit 303, a control circuit 304, an internal temperature sensor 305, a battery side switch 306, and a charging switch. 307, a compressor motor 309, and a storage battery unit 310 are provided. Each of the inverter 302, the charge / discharge circuit 303, the internal temperature sensor 305, the battery side switch 306, the charging switch 307, and the system side switch 308 is controlled by the control circuit 304.
冷蔵庫３００では、電池側スイッチ３０６がオンに設定されると共に、充電用スイッチ３０７がオフに設定されると、蓄電池ユニット３１０から充放電回路３０３に直流の電圧が入力され、充放電回路３０３は、この入力電圧を検出して電圧検出信号を制御回路３０４に供給する。制御回路３０４は、充放電回路３０３からの電圧検出信号に基づいて電圧を上昇させるための制御信号を充放電回路３０３に出力し、充放電回路３０３は、入力された制御信号に基づいて入力電圧を昇圧し、インバータ回路３０２に供給する。 In the refrigerator 300, when the battery-side switch 306 is set to ON and the charging switch 307 is set to OFF, a DC voltage is input from the storage battery unit 310 to the charge / discharge circuit 303. This input voltage is detected and a voltage detection signal is supplied to the control circuit 304. The control circuit 304 outputs a control signal for increasing the voltage based on the voltage detection signal from the charge / discharge circuit 303 to the charge / discharge circuit 303, and the charge / discharge circuit 303 receives the input voltage based on the input control signal. Is boosted and supplied to the inverter circuit 302.
一方、電池側スイッチ３０６がオフに設定されると共に、充電用スイッチ３０７がオンに設定されると、整流回路３０１から出力直流電圧が、充放電回路３０３に入力され、充放電回路３０３は、この入力電圧を検出して電圧検出信号を制御回路３０４に供給する。制御回路３０４は、充放電回路３０３からの電圧検出信号に基づいて電圧を低下させるための制御信号を充放電回路３０３に出力し、充放電回路３０３は、入力された制御信号に基づいて入力電圧を蓄電池ユニット３１０の充電が可能な電圧値まで降圧し、蓄電池ユニット３１０に供給する。この結果、蓄電池ユニット３１０が充電される。 On the other hand, when the battery-side switch 306 is set to OFF and the charging switch 307 is set to ON, the output DC voltage is input from the rectifier circuit 301 to the charge / discharge circuit 303, and the charge / discharge circuit 303 An input voltage is detected and a voltage detection signal is supplied to the control circuit 304. The control circuit 304 outputs a control signal for reducing the voltage based on the voltage detection signal from the charge / discharge circuit 303 to the charge / discharge circuit 303, and the charge / discharge circuit 303 receives the input voltage based on the input control signal. Is reduced to a voltage value at which the storage battery unit 310 can be charged, and supplied to the storage battery unit 310. As a result, the storage battery unit 310 is charged.
以上のように、電池側スイッチ３０６、充電用スイッチ３０７の開閉を制御して、商用電源及び蓄電池ユニットに充電された電力の双方で冷蔵庫を動作させることができる。 As described above, the refrigerator can be operated with both the commercial power source and the electric power charged in the storage battery unit by controlling the opening and closing of the battery side switch 306 and the charging switch 307.
しかしながら、特許文献１の場合、冷蔵庫に搭載された蓄電池ユニット３１０の電力は、この蓄電池ユニット３１０を搭載した機器である冷蔵庫３００にのみ利用され、他の電気機器には利用できない。つまり、停電時等に冷蔵庫３００の動作は一定時間維持できるが、その他の電気機器、例えば、電子レンジ、炊飯器等は一切使用できないといった状況には対処できない。 However, in the case of Patent Document 1, the power of the storage battery unit 310 mounted on the refrigerator is used only for the refrigerator 300 that is a device on which the storage battery unit 310 is mounted, and cannot be used for other electrical devices. That is, the operation of the refrigerator 300 can be maintained for a certain period of time during a power failure or the like, but it cannot cope with a situation in which other electrical devices such as a microwave oven and a rice cooker cannot be used at all.
本発明は、係る課題に鑑みてなされたものであり、その目的は、商用電源からの電力が遮断された場合でも、自機の動作を維持すると共に他の電気機器を動作させることができる冷蔵庫を提供することにある。 The present invention has been made in view of such problems, and a purpose thereof is a refrigerator that can maintain the operation of its own device and operate other electric devices even when power from a commercial power source is interrupted. Is to provide.
本発明は、商用電源からの交流電力を受けて直流電力に変換して出力するＡＣ−ＤＣ変換部、ＡＣ−ＤＣ変換部から出力された直流電力を交流に変換して負荷に供給するＤＣ−ＡＣ変換部、及びＡＣ−ＤＣ変換部から出力された直流電力を蓄える蓄電部を有する冷蔵庫であって、充電部、放電部、給電部、制御部を備え、充電部は、直流電力を蓄電部に充電し、放電部は、蓄電部に蓄えられた直流電力をＤＣ−ＡＣ変換部へ供給し、給電部は、ＤＣ−ＡＣ変換部で変換された交流電力を受けて他の電気機器に出力可能であり、制御部は、ＡＣ−ＤＣ変換部、ＤＣ−ＡＣ変換部、充電部、放電部及び給電部の各々を制御する制御部を備える。 The present invention receives AC power from a commercial power supply, converts it into DC power, and outputs the DC-DC converter. DC-DC output from the AC-DC converter is converted into AC and supplied to a load. A refrigerator having an AC conversion unit and a power storage unit that stores DC power output from the AC-DC conversion unit, comprising a charging unit, a discharge unit, a power feeding unit, and a control unit, wherein the charging unit stores DC power in the power storage unit The discharge unit supplies the DC power stored in the power storage unit to the DC-AC conversion unit, and the power supply unit receives the AC power converted by the DC-AC conversion unit and outputs it to other electrical devices. The control unit includes a control unit that controls each of the AC-DC conversion unit, the DC-AC conversion unit, the charging unit, the discharging unit, and the power feeding unit.
又、制御部は、商用電源からの交流電力がＡＣ−ＤＣ変換部へ供給され、他の電気機器が給電部に電気的に接続されるとき、蓄電部に蓄えられた直流電力をＤＣ−ＡＣ変換部へ供給するよう、放電部を制御する。 In addition, the control unit supplies the DC power stored in the power storage unit to the DC-AC when the AC power from the commercial power source is supplied to the AC-DC conversion unit and another electrical device is electrically connected to the power feeding unit. The discharge unit is controlled to be supplied to the conversion unit.
又、制御部は、商用電源からの交流電力がＡＣ−ＤＣ変換部へ供給され、他の電気機器が給電部に電気的に接続されないとき、蓄電部に蓄えられた直流電力をＤＣ−ＡＣ変換部へ供給しないよう、放電部を制御する。 The control unit also converts the DC power stored in the power storage unit into DC-AC conversion when AC power from a commercial power source is supplied to the AC-DC conversion unit and no other electrical device is electrically connected to the power supply unit. The discharge unit is controlled so as not to be supplied to the unit.
又、制御部は、商用電源からの交流電力がＡＣ−ＤＣ変換部へ供給されず、他の電気機器が給電部に電気的に接続されるとき、蓄電部に蓄えられた直流電力をＤＣ−ＡＣ変換部へ供給するよう、放電部を制御する。 In addition, when the AC power from the commercial power source is not supplied to the AC-DC conversion unit and another electrical device is electrically connected to the power feeding unit, the control unit converts the DC power stored in the power storage unit to DC- The discharge unit is controlled so as to be supplied to the AC conversion unit.
又、制御部は、蓄電部に蓄えられた直流電力が所定値以下となる場合、ＤＣ−ＡＣ変換部の出力である交流電力を他の電気機器に供給しないよう、給電部を制御する。 Further, the control unit controls the power feeding unit so that the AC power, which is the output of the DC-AC conversion unit, is not supplied to other electrical devices when the DC power stored in the power storage unit becomes a predetermined value or less.
本発明によれば、商用電源からの電力が遮断されても、自機である冷蔵庫と他の電気機器の双方を動作させることができる。 ADVANTAGE OF THE INVENTION According to this invention, even if the electric power from a commercial power source is interrupted | blocked, both the refrigerator which is an own machine, and another electric equipment can be operated.
〔実施形態１〕
本発明の一実施形態について図１〜４を参照して説明する。図１は、本発明の冷蔵庫１００を示すブロック図である。又、図２は、一実施形態に係る通常時の動作、図３は、一実施形態に係る他の電気機器への給電時の動作、図４は、一実施形態に係る停電時の動作をそれぞれ説明するフローチャートである。
Embodiment 1
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a refrigerator 100 of the present invention. 2 is a normal operation according to an embodiment, FIG. 3 is an operation when power is supplied to another electrical device according to the embodiment, and FIG. 4 is an operation during a power failure according to the embodiment. It is a flowchart explaining each.
先ず、図１を参照して冷蔵庫１００の構成を説明する。冷蔵庫１００は、入力端子１０１、ＡＣ−ＤＣ変換部１０２、ＤＣ−ＡＣ変換部１０３、負荷１０４、充電部１０５、放電部１０６、蓄電部１０７、制御部１０８、給電部１０９及び出力端子１１０を備えている。 First, the configuration of the refrigerator 100 will be described with reference to FIG. The refrigerator 100 includes an input terminal 101, an AC-DC conversion unit 102, a DC-AC conversion unit 103, a load 104, a charging unit 105, a discharging unit 106, a power storage unit 107, a control unit 108, a power feeding unit 109, and an output terminal 110. ing.
入力端子１０１は、商用電源に接続される。ＡＣ−ＤＣ変換部１０２は、入力端子１０１に供給される交流電力を直流電力に変換する。充電部１０５は、ＡＣ−ＤＣ変換部１０２から出力された直流電力を適宜昇降圧する。蓄電部１０７は、充電部１０５で適宜昇降圧された直流電力を蓄える。放電部１０６は、蓄電部１０７に蓄えられた電力を適宜昇降圧し、ＡＣ−ＤＣ変換部１０２の出力へ放電する。ＤＣ−ＡＣ変換部１０３は、ＡＣ−ＤＣ変換部１０２の出力及び、放電部１０６の出力である直流電力を交流電力へ変換する。
負荷１０４は、例えばコンプレッサ用モータであり、ＤＣ−ＡＣ変換部１０３から供給される交流電力によって動作する。給電部１０９は、ＤＣ−ＡＣ変換部１０３から出力される交流電力を他の電気機器へ供給又は遮断する。出力端子１１０は、給電部１０９と他の電気機器を接続する。制御部１０８は、ＡＣ−ＤＣ変換部１０２、充電部１０５、放電部１０６、ＤＣ−ＡＣ変換部１０３、給電部１０９の各々を制御する。
The input terminal 101 is connected to a commercial power source. The AC-DC converter 102 converts AC power supplied to the input terminal 101 into DC power. The charging unit 105 appropriately boosts and lowers the DC power output from the AC-DC conversion unit 102. The power storage unit 107 stores the DC power that is appropriately stepped up and down by the charging unit 105. Discharge unit 106 appropriately boosts and lowers the electric power stored in power storage unit 107 and discharges it to the output of AC-DC conversion unit 102. The DC-AC conversion unit 103 converts the DC power that is the output of the AC-DC conversion unit 102 and the output of the discharge unit 106 into AC power.
The load 104 is, for example, a compressor motor, and operates by AC power supplied from the DC-AC conversion unit 103. The power supply unit 109 supplies or blocks the AC power output from the DC-AC conversion unit 103 to other electrical devices. The output terminal 110 connects the power feeding unit 109 and other electrical devices. The control unit 108 controls each of the AC-DC conversion unit 102, the charging unit 105, the discharging unit 106, the DC-AC conversion unit 103, and the power feeding unit 109.
尚、ＡＣ−ＤＣ変換部１０２は、商用電源の供給を検出する検出器を内蔵している。又、充電部１０５、放電部１０６は、例えば昇降圧型ＤＣ−ＤＣコンバータであり、充電部１０５は、蓄電部１０７の蓄電量を検出する検出器を内蔵している。又、蓄電部１０７は、例えばリチウムイオン電池等の２次電池である。又、ＤＣ−ＡＣ変換部１０３は、負荷電力を検出する検出器を内蔵している。又、給電部１０９は、ＤＣ−ＡＣ変換部１０３の出力と出力端子１１０との間を接断するスイッチを内蔵している。 The AC-DC converter 102 includes a detector that detects supply of commercial power. The charging unit 105 and the discharging unit 106 are, for example, step-up / step-down DC-DC converters, and the charging unit 105 has a built-in detector that detects the amount of power stored in the power storage unit 107. The power storage unit 107 is a secondary battery such as a lithium ion battery. Further, the DC-AC converter 103 has a built-in detector for detecting load power. The power feeding unit 109 includes a switch that connects and disconnects the output of the DC-AC conversion unit 103 and the output terminal 110.
次に、図２を参照して、冷蔵庫１００の通常時の動作を説明する。入力端子１０１が商用電源に接続され、冷蔵庫１００に電源が投入されると、ＡＣ−ＤＣ変換部１０２にて商用電源の供給の有無を検出し、検出値を制御部１０８へ伝達する。制御部１０８は、検出値に基いて商用電源の供給の有無を判断する（Ｓ２０１）。判断結果がＹｅｓの場合、すなわち商用電源が検出された場合は、ＡＣ−ＤＣ変換部１０２にて、蓄電部１０７を充電するために、商用電源の交流電力が一旦、直流に変換される（Ｓ２０２）。一方、判断結果がＮｏの場合は、図４で説明する停電時の動作に移る。 Next, the normal operation of the refrigerator 100 will be described with reference to FIG. When the input terminal 101 is connected to a commercial power source and the refrigerator 100 is turned on, the AC-DC conversion unit 102 detects the presence or absence of commercial power supply and transmits the detected value to the control unit 108. The control unit 108 determines whether commercial power is supplied based on the detected value (S201). When the determination result is Yes, that is, when the commercial power source is detected, the AC power of the commercial power source is once converted into direct current in order to charge the power storage unit 107 in the AC-DC conversion unit 102 (S202). ). On the other hand, when the determination result is No, the operation proceeds to the power failure described with reference to FIG.
次に、負荷１０４に対して交流電力を供給するため、ＤＣ−ＡＣ変換部１０３にてＡＣ−ＤＣ変換部１０２から出力された直流電力が交流に変換される（Ｓ２０３）。その後、ＤＣ−ＡＣ変換部１０３の出力により、負荷１０４が駆動される（Ｓ２０４）。 Next, in order to supply AC power to the load 104, the DC power output from the AC-DC converter 102 is converted into AC by the DC-AC converter 103 (S203). Thereafter, the load 104 is driven by the output of the DC-AC conversion unit 103 (S204).
次に、充電部１０５により、蓄電部１０７の蓄電量を検出し、充電部１０５は、検出値を制御部１０８へ伝達する。制御部１０８は、伝達された検出値に基いて、蓄電部１０７の蓄電量を判断し、蓄電量が既定値以下、例えば５０％以下か否かを判断する（２０５）。判断結果がＹｅｓの場合、すなわち蓄電量が５０％以下の場合、充電部１０５を制御し、蓄電部１０７への充電を行う（Ｓ３０１）。一方、判断結果がＮｏの場合は、図３で説明する他の電気機器への給電時の動作に移る。 Next, the charging unit 105 detects the amount of power stored in the power storage unit 107, and the charging unit 105 transmits the detected value to the control unit 108. The control unit 108 determines the amount of power stored in the power storage unit 107 based on the transmitted detection value, and determines whether the power storage amount is equal to or less than a predetermined value, for example, 50% or less (205). When the determination result is Yes, that is, when the storage amount is 50% or less, the charging unit 105 is controlled to charge the power storage unit 107 (S301). On the other hand, if the determination result is No, the operation moves to the operation when power is supplied to another electrical device described in FIG.
充電部１０５は、蓄電部１０７の蓄電量を充電開始から一定時間間隔で検出し、検出値を制御部１０８へ伝達する。制御部１０８は、伝達された検出値に基いて、蓄電部１０７の蓄電量を判断し、蓄電量が所定値、例えば１００％に達するまで、充電動作を継続するよう充電部１０５を制御する（Ｓ３０２）。 Charging unit 105 detects the amount of power stored in power storage unit 107 at regular time intervals from the start of charging, and transmits the detected value to control unit 108. The control unit 108 determines the amount of power stored in the power storage unit 107 based on the transmitted detection value, and controls the charging unit 105 to continue the charging operation until the power storage amount reaches a predetermined value, for example, 100% ( S302).
尚、蓄電部１０７の充電の開始及び停止処理は、充電部１０５による蓄電量検出値に基いて制御部１０８が制御する例を示したが、冷蔵庫１００に、充電部１０５の検出値のインジケータと充電部１０５の充電動作をオンオフする手動のスイッチ（共に図示せず）を設けておき、使用者の判断で充電の開始及び停止を強制的に行えるようにしても良い。 In addition, although the example which the control part 108 controls the start and stop process of the electrical storage part 107 based on the electrical storage amount detection value by the charging part 105 was shown, the indicator of the detection value of the charging part 105 is shown in the refrigerator 100. A manual switch (both not shown) for turning on and off the charging operation of the charging unit 105 may be provided so that charging can be forcibly started and stopped at the user's discretion.
次に、図３を参照して、冷蔵庫１００から他の電気機器への給電時の動作を説明する。
出力端子１１０への他の電気機器の接続の有無に応じて、ＤＣ−ＡＣ変換部１０３は、給電部１０９を介して負荷電力の変動を検出し、検出値を制御部１０８へ伝達する。制御部１０８は、検出値に基いて、負荷電力が負荷１０４のみによるものより増えたか否かを判断する（Ｓ４０１）。判断結果がＮｏの場合、すなわち、他の機器が接続されていないと判断した場合、ＤＣ−ＡＣ変換部１０３の出力が出力端子１１０から出力されないように、給電部１０９を制御して交流電力出力を停止する。一方、判断結果がＹｅｓの場合、他の機器が接続されたと判断し、蓄電部１０７の電力がＤＣ−ＡＣ変換部１０３へ供給されるように放電部１０６を制御する（Ｓ４０２）。
Next, with reference to FIG. 3, the operation | movement at the time of the electric power feeding from the refrigerator 100 to another electric equipment is demonstrated.
Depending on whether or not another electrical device is connected to the output terminal 110, the DC-AC conversion unit 103 detects a change in load power via the power feeding unit 109 and transmits the detected value to the control unit 108. Based on the detected value, the control unit 108 determines whether or not the load power has increased from that due to only the load 104 (S401). When the determination result is No, that is, when it is determined that no other device is connected, the power supply unit 109 is controlled so that the output of the DC-AC conversion unit 103 is not output from the output terminal 110, and the AC power output To stop. On the other hand, when the determination result is Yes, it is determined that another device is connected, and the discharge unit 106 is controlled so that the power of the power storage unit 107 is supplied to the DC-AC conversion unit 103 (S402).
その後、放電された蓄電部１０７の電力は、ＤＣ−ＡＣ変換部１０３にてＡＣ−ＤＣ変換部１０２の直流出力と共に交流に変換され（Ｓ４０３）、給電部１０９へ導かれ、出力端子１１０から交流電力が出力される（Ｓ４０４）。 Thereafter, the discharged electric power of the power storage unit 107 is converted into alternating current together with the direct current output of the AC-DC conversion unit 102 by the DC-AC conversion unit 103 (S403), led to the power feeding unit 109, and is exchanged from the output terminal 110. Electric power is output (S404).
次に、充電部１０５により、蓄電部１０７の蓄電量が検出され、検出値を制御部１０８へ伝達する。制御部１０８は、伝達された検出値に基いて、蓄電部１０７の蓄電量が既定値以下、例えば５０％以下か否かを判断する（Ｓ４０５）。判断結果がＹｅｓの場合、すなわち蓄電量が既定値以下、例えば５０％以下の場合、給電部１０９を制御して出力端子１１０からの交流電力出力を停止し（Ｓ４０９）、通常時の動作における蓄電部１０７の充電手順を実行する。一方、判断結果がＮｏの場合、つまり、蓄電量が十分であると判断した場合は、出力端子１１０への他の電気機器接続の検出手順に戻る。 Next, the charging unit 105 detects the amount of power stored in the power storage unit 107 and transmits the detected value to the control unit 108. Based on the transmitted detection value, the control unit 108 determines whether or not the amount of power stored in the power storage unit 107 is less than a predetermined value, for example, 50% or less (S405). When the determination result is Yes, that is, when the storage amount is equal to or less than a predetermined value, for example, 50% or less, the power supply unit 109 is controlled to stop the AC power output from the output terminal 110 (S409). The charging procedure of the unit 107 is executed. On the other hand, when the determination result is No, that is, when it is determined that the amount of stored electricity is sufficient, the procedure returns to the detection procedure of another electrical device connection to the output terminal 110.
尚、出力端子１１０への交流電力出力は、ＤＣ−ＡＣ変換部１０３による負荷電力検出値に基いて制御部１０８が制御する例を示したが、出力端子１１０に手動スイッチ（図示せず）を併設しておき、他の電気機器の接続、否接続に応じて、使用者が任意にオンオフ操作を行えるようにしても良い。 In addition, although the control part 108 showed the example which controls the alternating current power output to the output terminal 110 based on the load electric power detection value by the DC-AC conversion part 103, a manual switch (not shown) was shown in the output terminal 110. It is also possible that the user can arbitrarily perform an on / off operation in accordance with connection / non-connection of other electrical devices.
次に、図４を参照して、商用電源が停電した場合の冷蔵庫１００の動作を説明する。冷蔵庫１００に電源が投入されている状態で、Ｓ２０１において商用電源が供給されていないと判断された場合、制御部１０８は、放電部１０６を制御し、蓄電部１０７に蓄えられた電力がＤＣ−ＡＣ変換部１０３へ供給されるように放電部１０６を制御する（Ｓ５０１）。 Next, with reference to FIG. 4, operation | movement of the refrigerator 100 when a commercial power supply fails is demonstrated. When it is determined in S201 that commercial power is not supplied in a state where power is supplied to the refrigerator 100, the control unit 108 controls the discharge unit 106 so that the electric power stored in the power storage unit 107 is DC−. The discharge unit 106 is controlled to be supplied to the AC conversion unit 103 (S501).
その後、ＡＣ−ＤＣ変換部１０２の出力と蓄電部１０７から放電された直流電力が、ＤＣ−ＡＣ変換部１０３へ供給されて交流に変換され（Ｓ５０２）、変換された交流電力により、負荷１０４が駆動されると同時に、ＤＣ−ＡＣ変換部１０３により変換された交流電力は、給電部１０９を介して出力端子１１０へ出力される（Ｓ５０３）。 Thereafter, the output of the AC-DC conversion unit 102 and the DC power discharged from the power storage unit 107 are supplied to the DC-AC conversion unit 103 and converted into AC (S502), and the load 104 is converted by the converted AC power. Simultaneously with the driving, the AC power converted by the DC-AC conversion unit 103 is output to the output terminal 110 via the power feeding unit 109 (S503).
次に、ＡＣ−ＤＣ変換部１０２にて商用電源の供給の有無を検出し、検出値を制御部１０８へ伝達する。制御部１０８は、検出値に基いて商用電源の供給の有無を判断する（Ｓ５０４）。判断結果がＹｅｓの場合、すなわち停電が解除され、商用電源が検出された場合は、図２で説明した充電時の動作に移る。 Next, the AC-DC conversion unit 102 detects whether commercial power is supplied, and transmits the detected value to the control unit 108. The control unit 108 determines whether commercial power is supplied based on the detected value (S504). When the determination result is Yes, that is, when the power failure is canceled and the commercial power source is detected, the operation proceeds to the charging operation described with reference to FIG.
一方、判断結果がＮｏの場合、すなわち停電が継続し、商用電源が検出されない場合、充電部１０５により、蓄電部１０７の蓄電量が検出され、検出値を制御部１０８へ伝達する。制御部１０８は、伝達された検出値に基いて、蓄電部１０７の蓄電量が既定値以下、例えば５０％以下か否かを判断する（Ｓ５０５）。判断結果がＹｅｓの場合、すなわち蓄電量が既定値、例えば５０％に達した時点で給電部１０９を制御し、出力端子１１０への交流電力出力を停止する。一方、判断結果がＮｏの場合、つまり、蓄電量が十分であると判断した場合は、放電部１０６を制御して、蓄電部１０７からＤＣ−ＡＣ変換部１０３への電力の供給が継続される。 On the other hand, when the determination result is No, that is, when the power failure continues and commercial power is not detected, the charging unit 105 detects the amount of power stored in the power storage unit 107 and transmits the detected value to the control unit 108. Based on the transmitted detection value, the control unit 108 determines whether or not the amount of power stored in the power storage unit 107 is a predetermined value or less, for example, 50% or less (S505). When the determination result is Yes, that is, when the charged amount reaches a predetermined value, for example, 50%, the power feeding unit 109 is controlled, and the AC power output to the output terminal 110 is stopped. On the other hand, when the determination result is No, that is, when it is determined that the amount of stored electricity is sufficient, the discharge unit 106 is controlled and the supply of power from the power storage unit 107 to the DC-AC conversion unit 103 is continued. .
本実施形態によれば、冷蔵庫が蓄電部を有し、この蓄電部に蓄えられた電力を他の電気機器へ給電する給電部を備える。更に、蓄電部に蓄えられた電力を、自機である冷蔵庫と、給電部を介して接続された他の電気機器の双方へ供給できる。したがって、商用電源に対し、電力供給能力を上回る負荷がかかる場合でも、蓄電部に蓄えられた電力によって電力供給を補えるので、冷蔵庫と他の電気機器の双方を動作させることが可能となる。又、商用電源からの電力が遮断されても、冷蔵庫と他の電気機器の双方を動作させることが可能となる。又、商用電源からの電力が遮断された場合、蓄電部の蓄電残量に基いて給電部からの交流電力出力を停止するので、自機である冷蔵庫の動作維持時間の延長を図ることができる。 According to the present embodiment, the refrigerator includes a power storage unit, and includes a power supply unit that supplies power stored in the power storage unit to other electrical devices. Furthermore, the electric power stored in the power storage unit can be supplied to both the refrigerator as its own device and other electric devices connected via the power supply unit. Therefore, even when a load exceeding the power supply capacity is applied to the commercial power supply, the power supply can be supplemented by the electric power stored in the power storage unit, so that both the refrigerator and other electric devices can be operated. Moreover, even if the power from the commercial power source is cut off, both the refrigerator and other electric devices can be operated. In addition, when the power from the commercial power source is cut off, the AC power output from the power feeding unit is stopped based on the remaining amount of power stored in the power storage unit, so that the operation maintenance time of the refrigerator as its own machine can be extended. .
今回開示された実施形態は全ての点で例示であって制限的なものではない。本発明の範囲は上記した説明ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内での全ての変更が含まれることが意図されるものである。 The embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
本発明は、家庭用冷蔵庫の他、大規模な冷蔵装置或いは冷凍装置にも適用できる。 The present invention can be applied to a large-scale refrigeration apparatus or refrigeration apparatus in addition to a household refrigerator.
１００ 冷蔵庫
１０１ 入力端子
１０２ ＡＣ−ＤＣ変換部
１０３ ＤＣ−ＡＣ変換部
１０４ 負荷
１０５ 充電部
１０６ 放電部
１０７ 蓄電部
１０８ 制御部
１０９ 給電部
１１０ 出力端子
DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Input terminal 102 AC-DC conversion part 103 DC-AC conversion part 104 Load 105 Charging part 106 Discharge part 107 Power storage part 108 Control part 109 Power supply part 110 Output terminal
Claims (5)
前記ＡＣ−ＤＣ変換部から出力された直流電力を交流に変換して負荷に供給するＤＣ−ＡＣ変換部、及び、
前記ＡＣ−ＤＣ変換部から出力された直流電力を蓄える蓄電部と、
を有する冷蔵庫であって、
前記冷蔵庫は、充電部、放電部、給電部及び制御部を備え、
前記充電部は、前記直流電力を前記蓄電部に充電し、
前記放電部は、前記蓄電部に蓄えられた直流電力を前記ＤＣ−ＡＣ変換部へ供給し、
前記給電部は、前記ＤＣ−ＡＣ変換部で変換された交流電力を受けて他の電気機器に出力可能であり、
前記制御部は、前記ＡＣ−ＤＣ変換部と前記ＤＣ−ＡＣ変換部と前記充電部と前記放電部と前記給電部の各々を制御する、冷蔵庫。 An AC-DC converter that receives AC power from a commercial power supply, converts it to DC power, and outputs the DC power;
A DC-AC converter that converts the DC power output from the AC-DC converter into AC and supplies it to a load; and
A power storage unit that stores direct-current power output from the AC-DC converter;
A refrigerator having
The refrigerator includes a charging unit, a discharging unit, a power feeding unit, and a control unit,
The charging unit charges the power storage unit with the DC power,
The discharge unit supplies the DC power stored in the power storage unit to the DC-AC conversion unit,
The power feeding unit can receive AC power converted by the DC-AC conversion unit and output it to other electrical devices,
The said control part is a refrigerator which controls each of the said AC-DC conversion part, the said DC-AC conversion part, the said charging part, the said discharge part, and the said electric power feeding part.
前記蓄電部に蓄えられた直流電力を前記ＤＣ−ＡＣ変換部へ供給するよう、前記放電部を制御する請求項１記載の冷蔵庫。 When the control unit is supplied with AC power from the commercial power source to the AC-DC conversion unit, and the other electrical device is electrically connected to the power supply unit,
The refrigerator according to claim 1, wherein the discharge unit is controlled so as to supply the DC power stored in the power storage unit to the DC-AC conversion unit.
前記蓄電部に蓄えられた直流電力を前記ＤＣ−ＡＣ変換部へ供給しないよう、前記放電部を制御する請求項１記載の冷蔵庫。 When the control unit is supplied with AC power from the commercial power source to the AC-DC conversion unit and the other electric device is not electrically connected to the power supply unit,
The refrigerator according to claim 1, wherein the discharge unit is controlled so as not to supply direct-current power stored in the power storage unit to the DC-AC conversion unit.
前記蓄電部に蓄えられた直流電力を前記ＤＣ−ＡＣ変換部へ供給するよう、前記放電部を制御する請求項１記載の冷蔵庫。 When the AC power from the commercial power source is not supplied to the AC-DC conversion unit and the other electric device is electrically connected to the power supply unit, the control unit is
The refrigerator according to claim 1, wherein the discharge unit is controlled so as to supply the DC power stored in the power storage unit to the DC-AC conversion unit.
前記ＤＣ−ＡＣ変換部の出力である交流電力を前記他の電気機器に供給しないよう、前記給電部を制御する請求項４記載の冷蔵庫。 The control unit, when the DC power stored in the power storage unit is less than a predetermined value,
The refrigerator of Claim 4 which controls the said electric power feeding part so that the alternating current power which is an output of the said DC-AC conversion part may not be supplied to said other electric equipment.
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| JP2012199017A JP2014055678A (en) | 2012-09-11 | 2012-09-11 | Refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811570A (en) * | 2016-03-11 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Mobile refrigeration device and power supply switching method and device thereof |
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2012
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811570A (en) * | 2016-03-11 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Mobile refrigeration device and power supply switching method and device thereof |
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