CN2456088Y

CN2456088Y - Compensator for air conditioner in power off

Info

Publication number: CN2456088Y
Application number: CN 00257057
Authority: CN
Inventors: 王正太; 董建华; 王小岭
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Group Corp
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Group Corp
Priority date: 2000-12-12
Filing date: 2000-12-12
Publication date: 2001-10-24
Anticipated expiration: 2010-12-12

Abstract

The utility model relates to a power cut compensator for an air conditioner, which is composed of a single chip microcomputer IC1, a load driving circuit, a signal input circuit and a power cut compensation circuit. The utility model is arranged in the control circuit of an air conditioner, so that the air conditioner can automatically operate according to original set parameter after the electricity is cut off temporarily and is restored. The utility model can be widely used for the occasion that the air conditioner needs long operation to maintain specified temperature and humidity when the air conditioner is not monitored by people.

Description

Air-conditioner power failure compensation arrangement

The utility model belongs to electrical equipment power-failure protecting field.

Air-conditioner is the electrical equipment that electronic equipment and human environment of living in is carried out constant temperature, constant humidity control, and many occasions need the air-conditioner long-time running to keep the temperature and humidity of regulation.But because the difference of electrical network situation and the electric fault of burst, the temporary interruption phenomenon still is recurrent.In a single day existing air-conditioner runs into the situation of temporary interruption, can only be after restoring electricity by manually recovering original duty of setting, and can only be out of service when unmanned.In especially unattended place, many important places is not allow to take place this situation.These places require air-conditioner can the automatic operation of parameter is set promptly have power failure compensation function by former after restoring electricity.

The purpose of this utility model provides a kind of air-conditioner power failure compensation arrangement, and this device is arranged in the air conditioner control circuit, makes air-conditioner can move automatically by the former parameter that is provided with at temporary interruption and after restoring electricity.

The utility model comprises single-chip microcomputer IC1, load driving circuits, signal input circuit, is characterized in: also comprise power interruption compensation circuit; Four outputs of power interruption compensation circuit: four input CS, the SK of 1 end (CS), 2 ends (SK), 3 ends (DI), 4 ends (DO) and single-chip microcomputer IC1, DI, DO are corresponding is connected; Four inputs of power interruption compensation circuit: 8 termination dc sources (VCC positive pole), 5 terminations are (VCC negative pole) logically, and 6 ends, 7 ends are unsettled.

Described power interruption compensation circuit is made of storage chip IC4, capacitor C25, C26, C27, C28, resistor R 47, R48; Capacitor C25 is connected in parallel on 5 ends and 8 ends of storage chip IC4, capacitor C26 one end is connected with 3 ends of storage chip IC4, another termination logically, capacitor C27 one end is connected with 2 ends of storage chip IC4, another termination logically, capacitor C28 one end is connected with 1 end of storage chip IC4, another termination logically, resistor R 48 1 ends are connected with 1 end of storage chip (IC4), another termination logically, resistor R 47 1 ends are connected with 4 ends of storage chip (IC4), and the other end connects the DO input of single-chip microcomputer IC1.

When the power failure compensation arrangement was worked under software program control, air-conditioner setting state each time changed, and single-chip microcomputer IC1 can write the content that changes among the electrically-erasable storage chip IC4.If normal shutdown (using a teleswitch or the emergency key shutdown), then shutdown back single-chip microcomputer IC1 writes appropriate address among the storage chip IC4 with normal shutdown Status Flag data bit.When powering on once more, the status signal that single-chip microcomputer IC1 reads in is " normal shutdown ", and air-conditioner is in holding state, and waits for power-on command.If abnormal shutdown (having a power failure suddenly in the air-conditioner running), then shutdown back single-chip microcomputer IC1 writes appropriate address among the storage chip IC4 with abnormal shutdown Status Flag data bit.When powering on once more, the status signal that single-chip microcomputer IC1 reads in is " abnormal shutdown ", air-conditioner Auto Power On, and continue to read in other set condition, the duty of once setting before air-conditioner is returned to.

Be provided with air-conditioner of the present utility model, realized that air-conditioner can move automatically by the former parameter that is provided with under the situation that unmanned has a power failure suddenly after restoring electricity.Thereby guaranteed pre-provisioning request effectively to environment temperature, humidity.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described:

Accompanying drawing 1 is the electrical block diagram of the utility model embodiment

Accompanying drawing 2 is the integrated circuit schematic diagram of the utility model embodiment

The control program FB(flow block) of accompanying drawing 3 the utility model embodiment

With reference to the accompanying drawings 1, the utility model comprises single-chip microcomputer IC1, load driving circuits, signal input circuit, is characterized in: also comprise power interruption compensation circuit; Four outputs of power interruption compensation circuit: four input CS, the SK of 1 end (CS), 2 ends (SK), 3 ends (DI), 4 ends (DO) and single-chip microcomputer IC1, DI, DO are corresponding is connected; Four inputs of power interruption compensation circuit: 8 termination dc sources (VCC positive pole), 5 terminations are (VCC negative pole) logically, and 6 ends, 7 ends are unsettled.

With reference to the accompanying drawings 2, single-chip microcomputer IC1 is as control chip, and major function is to realize control (press, indoor and outdoor blower fan, stepper motor, buzzer output, healthy functions output control signal, cross valve output, relay indicating light) to corresponding output loading according to input signal (remote controller input signal, sensor input signal, current transformer input signal, motor Hall element feedback signal, emergency button input signal) and the handling procedure set.Storage chip IC4 is as memory element, major function is storage air-conditioner work run duration running status, be stored in the appropriate address space with binary form, can be after the air-conditioner outage with the information long preservation, after powering on once more, single-chip microcomputer IC1 can read air-conditioner duty last time from appropriate address.Wherein CS is a sheet choosing end, during single-chip microcomputer IC1 output high level, can carry out read-write operation to memory, SK is the synchronizing clock signals input, DI is the data input port, storage chip IC4 is input to data in the single-chip microcomputer by this port, and DO is a data output, and single-chip microcomputer IC1 outputs to storage chip IC4 by this port with data.Capacitor C 25, C26, C27, C28 are the anti-interference capacitor of using, to guarantee the reliable read write of single-chip microcomputer IC1 to memory.Resistance R 47 is a current-limiting resistance, and R48 is a divider resistance.In the present embodiment, single-chip microcomputer IC1 has adopted the TMP87PH46N of Toshiba, and storage chip IC4 has adopted BR93LC46, and capacitor C 25 is that 0.1 μ F, C26, C27, C28 are 0.01 μ F, and resistance R 47 is 1K, and R48 is 10K, and operating voltage is direct current 5V.

With reference to the accompanying drawings 3, when the power failure compensation arrangement was worked under software program control, air-conditioner setting state each time changed, and single-chip microcomputer IC1 can write the content that changes among the electrically-erasable storage chip IC4.If normal shutdown (using a teleswitch or the emergency key shutdown), then shutdown back single-chip microcomputer IC1 writes appropriate address among the storage chip IC4 with normal shutdown Status Flag data bit.When powering on once more, the status signal that single-chip microcomputer IC1 reads in is " normal shutdown ", and air-conditioner is in holding state, and waits for power-on command.If abnormal shutdown (having a power failure suddenly in the air-conditioner running), then shutdown back single-chip microcomputer IC1 writes appropriate address among the storage chip IC4 with abnormal shutdown Status Flag data bit.When powering on once more, the status signal that single-chip microcomputer IC1 reads in is " abnormal shutdown ", air-conditioner Auto Power On, and continue to read in other set condition, the duty of once setting before air-conditioner is returned to.

Have in storing among the storage chip IC4: air-conditioner switch machine state, set mode of operation, set operating temperature, wind speed setting, swing motor switch, anion function have or not, the electrical heating switch, renew the wind switch, or the like.

Claims

1. an air-conditioner power failure compensation arrangement comprises single-chip microcomputer (IC1), load driving circuits, signal input circuit, it is characterized in that: also comprise power interruption compensation circuit; Four outputs of power interruption compensation circuit: four input CS, SK of 1 end (CS), 2 ends (SK), 3 ends (DI), 4 ends (DO) and single-chip microcomputer (IC1), DI, DO are corresponding is connected; Four inputs of power interruption compensation circuit: 8 termination dc source VCC positive poles, 5 terminations are the VCC negative pole logically, and 6 ends, 7 ends are unsettled.

2. air-conditioner power failure compensation arrangement according to claim 1 is characterized in that: described power interruption compensation circuit is made of storage chip (IC4), capacitor C25, C26, C27, C28, resistor R 47, R48; Capacitor C25 is connected in parallel on 5 ends and 8 ends of storage chip (IC4), capacitor C26 one end is connected with 3 ends of storage chip (IC4), another termination logically, capacitor C27 one end is connected with 2 ends of storage chip (IC4), another termination logically, capacitor C28 one end is connected with 1 end of storage chip (IC4), another termination logically, resistor R 48 1 ends are connected with 1 end of storage chip (IC4), another termination logically, resistor R 47 1 ends are connected with 4 ends of storage chip (IC4), and the other end connects the DO input of single-chip microcomputer (IC1).