CN1090736C - Split type air conditioner - Google Patents
Split type air conditioner Download PDFInfo
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- CN1090736C CN1090736C CN96122652A CN96122652A CN1090736C CN 1090736 C CN1090736 C CN 1090736C CN 96122652 A CN96122652 A CN 96122652A CN 96122652 A CN96122652 A CN 96122652A CN 1090736 C CN1090736 C CN 1090736C
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- deicing
- outdoor
- temperature
- air conditioner
- indoor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The split type air conditioner of the present invention having an indoor unit and an outdoor unit is provided with a mechanical temperature detector in the outdoor unit to detect the frosted condition of an outdoor heat exchanger, and activates the CT in the indoor drive circuit of an outdoor fan motor as receiving means supplied with a frost detection signal delivered from the mechanical temperature detector so as to deliver a de-ice operation start signal on the basis of the information from the CT.
Description
The present invention relates to a kind of detachable air conditioner, it has an indoor unit and an outdoor unit.
Recently, air-conditioner has been widely used for family, and in Japan, domestic air conditioner is detachable air conditioner mostly, be used for cooling and heating, when this detachable air conditioner is used for interior space heating and when this moment, outside air temperature was low, defrost operation control was absolutely necessary, to remove the frost of outdoor unit heat exchanger, like this, in this case, traditional detachable air conditioner will be accurately and is suitably carried out defrost control, and this is the major requirement or the problem in this field.
Below accompanying drawing, narrate a kind of traditional detachable air conditioner, Fig. 4 is a kind of can the refrigeration and the circuit structure diagram of traditional detachable air conditioner of heating operation, as shown in Figure 4, this traditional detachable air conditioner comprises indoor unit 1, outdoor unit 2 and indoor-outdoor stube cable 3 that indoor unit 1 and outdoor unit 2 are electrically connected each other.
In indoor unit 1, an end of main switch 4 is connected to power supply 22, and the other end of main switch 4 is connected to indoor electronic control unit 50.Indoor fan motor 6 for example by the transistor motor of transistor circuit control, is connected to indoor electronic control unit 50.Main relay 7 carries out on by indoor electronic control unit 50, and heating operation relay 8 is connected when heating among Fig. 4, and defrost operation detection circuit 9 is used to detect the defrost operation.
On the other hand, outdoor unit 2 has outdoor electronic control unit 11, and electric power offers the outdoor electronic control unit of this unit from transformer 17, and defrost operational relay 10 and cross valve 12 are by outdoor electronic control unit 11 controls.Cross valve 12 has the function according to the coolant channel of cooling or heating operation selection cool cycles or heat cycles, cross valve 12 operates work by the on/off of the cross valve relay 15 of outdoor electronic control unit 11 controls, in addition, outdoor unit 2 has outdoor fan motor 13, as induction type motor, and the capacitor 14 that is used for outdoor fan motor.Outdoor fan motor 13 is driven and control by the on/off operation of the outdoor fan motor relay 16 of outdoor electronic control unit 11 controls, outdoor unit 2 also has a compressor 18 and compressor capacitor 19, as shown in Figure 4, and outdoor unit 2 has temperature sensor 20 and the outdoor air temperature sensor 21 that is used for outdoor heat converter.
The following describes the work of relation and each parts between traditional each parts of detachable air conditioner shown in Figure 4.
One end of indoor unit 1 main switch 4 is connected to power supply 22, and the main switch other end is connected to indoor electronic control unit 50, and when main switch 4 was connected, electric power was delivered to indoor electronic control unit 50.Indoor electronic control unit 50 beginning control operations also rotate indoor fan motor 6, because the rotation of indoor fan motor 6, room air is by the indoor heat converter (not shown), begin the circulation of room air thus, when the user sends the operation initiation command at this moment, indoor electronic control unit 50 makes main relay 7 actions, power to outdoor unit 2 from power supply 22, at this moment, electric power is delivered to compressor 18 from power supply 22, begins to rotate compressor 18, simultaneously, electric power is also delivered to outdoor fan motor 13 through outdoor fan motor relay 16 from power supply 22, begins the outdoor heat converter (not shown) is sent to outdoor air.
And electric power is also delivered to outdoor electronic control unit 11 through transformer 17 from power supply 22, and outdoor electronic control unit 11 begins control work.Connect to select the cross valve 12 of coolant channel, electric power is delivered to cross valve 12 through heating operation relay 8 and cross valve relay 15 like this, when electric power not when power supply 22 is delivered to cross valve 12, cold-producing medium is by being used for the passage of cool cycles.Like this, unless the user specifies heating operation and imports the heating operation order, otherwise heating operation relay 8 is remained on off-state by indoor electronic control unit 50, and under this state, this detachable air conditioner begins to cool down operation.
When the user sends the heating operation order immediately after above-mentioned cooling down operation begins, indoor electronic control unit 50 makes 8 actions of heating operation relay, and electric power is delivered to cross valve 12 from power supply 22 through cross valve relay 15, the selected coolant channel that is used for heat cycles of this operation, the beginning heating operation, at this moment, outdoor air is delivered to outdoor heat converter by outdoor fan motor 13, and the heat of outdoor air is transferred to cold-producing medium through outdoor heat converter, the result, cold-producing medium evaporation and gasification, cold-producing medium is delivered to indoor heat converter by compressor 18 subsequently.
Temperature sensor 20 is the temperature of sensing chamber's outer heat-exchanger constantly, and outdoor air temperature sensor 21 also constantly detects outside air temperature, when outside air temperature during heating becomes higher relatively, or the temperature of outdoor heat converter is when becoming higher relatively, the discharge pressure of compressor 18 is higher, causes the overload of compressor 18 thus, for avoiding this overload of compressor, outdoor electronic control unit 11 is failure to actuate outdoor fan motor relay 16, reduces the heat exchange of outdoor heat converter thus.
On the other hand, in heating operation, when outside air temperature is low, frosting occurs at outdoor heat converter,, periodically carry out the deicing operation for deicing, when carrying out the deicing operation, outdoor electronic control unit 11 is failure to actuate cross valve relay 15, makes cross valve 12 be set to the cool cycles side.Simultaneously, outdoor electronic control unit 11 makes 10 actions of defrost operation detection relay, provide electric power to defrost operation detection circuit 9, and outdoor electronic control unit 11 notifies indoor electronic control unit 50 carrying out defrost operation, carries out cooling down operation in defrost operating period, by to outdoor heat converter heating remove frost, and, indoor electronic control unit 50 carries out control operation, for example controls cold air and enters the interior space, such as stopping or indoor fan motor 6 being slowed down.
Above-mentioned traditional detachable air conditioner requires to have family the exoelectron control module in outdoor unit, in general, the semiconductor element in electronic control unit than other element more to thermo-responsive.
When semiconductor is used in the outdoor electronic control unit, when during cooling they were by hot room outer air or direct sunlight heating, the semiconductor in outdoor electronic control unit may be heated to the temperature extremes that exceeds its permission and cause thermal runaway.For addressing this problem, basically be the measures such as radiator of taking for example to increase electronic component in the outdoor electronic control unit, the result, traditional outdoor electronic control unit has the factor that reduces serviceability because of having increased parts number, and, traditional detachable air conditioner all has electronic control unit at indoor unit and outdoor unit, causes increasing product cost.
And, some traditional detachable air conditioners only carry out defrost operation control by indoor electronic control unit during heating operation, but, this indoor electronic control unit requires to be released by the electric current of the heat exchanger temperature of indoor unit and the circuit of flowing through the heat exchanger temperature of outdoor unit, in addition, when proposing various model, must determine various setting values selectively to first model, weakened the versatility in the defrost operation control thus.
An object of the present invention is to propose a kind of split-type air conditioner device, but its high temperature resistance and the defrost control that obtains to have versatility, even and also can be accurately between the period of heating of the low cold district of outside air temperature and suitably carry out defrost operation control.
Another object of the present invention is to propose a kind of detachable air conditioner, and it has removed outdoor electronic control unit and has strengthened maintainability.
For reaching above-mentioned purpose, a kind of detachable air conditioner of the present invention has indoor unit and outdoor unit, comprising:
Be arranged on temperature detecting unit in the described outdoor unit, that when outdoor unit side heat exchanger is lower than predetermined set point of temperature, export the frosting detection signal;
Being arranged on described frosting detection signal letter in the described indoor unit, that described temperature-detecting device is exported is the receiving system of input;
In order to confirm described outdoor unit side heat exchanger frosting state, when in enough predetermined stipulated times, continuing to have described frosting detection signal to import, to export the electronic-controlled installation that commencing signal is operated in deicing to described receiving system;
The deicing control device that when the described deicing action of input commencing signal, carries out the deicing operation;
And the jockey that described indoor unit and described outdoor unit are electrically connected.
And another kind of detachable air conditioner of the present invention, have indoor unit and outdoor unit, comprising:
Be arranged on first temperature-detecting device in the described outdoor unit, that when outdoor unit side heat exchanger is lower than predetermined set point of temperature, export the frosting detection signal;
Be arranged in the described indoor unit, second temperature-detecting device of cell side heat exchanger temperature in the sensing chamber;
Be arranged on described indoor unit, with the described frosting detection signal of described first temperature-detecting device output receiving system as input;
For confirm described outdoor unit side heat exchanger frosting state, when described receiving system being continued have described frosting detection signal input and described receiving system had the temperature detection signal input that described second temperature-detecting device detects in enough predetermined stipulated time, utilize judgment means and the retrieval of tabling look-up be judged as described outdoor unit side heat exchanger be in the authorized pressure that need carry out the deicing action when following the output deicing move the electronic-controlled installation of commencing signal;
The deicing control device that when the described deicing action of input commencing signal, carries out the deicing action;
And the jockey that described indoor unit and described outdoor unit are electrically connected.
Because said structure of the present invention, be arranged on the frosting state of the temperature-detecting device sensing chamber outer heat-exchanger in the outdoor heat converter of outdoor unit, and the frosting state of outdoor heat converter is sent to the electronic control unit that is arranged in the indoor unit.Electronic control unit sends the defrost operational order then.So detachable air conditioner of the present invention does not have the electronic control unit in the outdoor unit just can suitably carry out defrost operation control.As a result, the defrost operation control unit can be with the low cost manufacturing, and the maintainability of enhancing is arranged.In addition, detachable air conditioner of the present invention can realized better defrost operation control aspect accuracy and the versatility, thereby the frosting of outdoor heat converter/deicing situation is directly detected by the temperature survey of outdoor heat converter.
Although proposed new features of the present invention particularly in appending claims, structure of the present invention and content and other purpose and characteristics will be owing to understanding better below in conjunction with being described in detail of accompanying drawing.
Fig. 1 is the circuit structure diagram according to a kind of detachable air conditioner that can cool off and heat of one embodiment of the invention;
Fig. 2 is the control of being carried out when beginning is operated in expression according to a deicing of the present invention flow chart;
Fig. 3 be expression according to the present invention when the deicing EO, the flow chart of the control of being carried out; And
Fig. 4 is the circuit structure diagram of traditional detachable air conditioner that can cool off and heat.
It should be understood that these figure partly or entirely for explanation schematically illustrates, thereby the actual relative size and the position of parts shown in need not to represent.
An embodiment referring to Fig. 1 to 3 explanation detachable air conditioner of the present invention.
Fig. 1 is the circuit structure diagram that can cool off and heat this embodiment of detachable air conditioner, and Fig. 2 is the flow chart that begins the control that deicing when operation carry out at this embodiment, and Fig. 3 is the flow chart of the control carried out when this embodiment deicing EO.
As shown in Figure 1, detachable air conditioner comprises that an indoor unit 100, one outdoor units 200 and are used to indoor-outdoor stube cable 300 that indoor unit 100 and outdoor unit 200 are electrically connected each other.
In indoor unit 100, one end of main switch 4 is connected to power supply 22, the other end of main switch 4 is connected to electronic control unit, one indoor fan motor 6, for example by the transistor motor of transistor circuit control, be connected to electronic control unit 5, main relay 7, heating operation relay 8 and outdoor fan motor relay 16 are made on/off by electronic control unit 5.Control heating operation relay 8 is connected when the heating operation mode.
On the other hand, outdoor unit 200 is not provided with electronic control unit.As mentioned above, only indoor unit 100 is provided with electronic control unit 5, and cross valve 12 is made on by heating operation relay 8, and cross valve 12 has the effect according to cooling or heating operation selection cool cycles or heat cycles coolant channel.
In addition, outdoor unit 200 has outdoor fan motor 13, induction motor for example, and the capacitor 14 that is used for outdoor fan motor, outdoor fan motor 13 is connected to outdoor fan motor switch 25, the latter drives and control outdoor fan motor 13, and the splicing ear X of outdoor fan motor switch 25 is connected to outdoor fan motor relay 16 through a CT (current transformer) 24, for example solid-state relay (SSR).The splicing ear Y of outdoor fan motor switch 25 is connected to heating operation relay 8, so that cross valve 12 is made on.
As shown in Figure 1, outdoor unit 200 has compressor 18, and a known compressor capacitor 19 that is connected to compressor 18.And, outdoor unit 200 has a mechanical type Temperature Detector 23, temperature sensor as the outdoor heat converter (not shown), the mechanical type Temperature Detector 23 that is arranged in the outdoor heat converter comprises a bimetal leaf or analog, variations in temperature with sensing chamber's outer heat-exchanger, as a result, the frosting of outdoor heat converter/deicing state is detected by mechanical type Temperature Detector 23.Make the operating temperature that switches on and off of mechanical type Temperature Detector 23 action will consider the thermal response of the rate of rise of frosting of outdoor heat converter and deicing degree and mechanical type Temperature Detector 23 and each factors vary and set.In mechanical type Temperature Detector 23 of the present invention, " connection " operating temperature is set in-3 ℃, and " disconnection " operating temperature is set at 4 ℃.
The following describes the work of relation and parts between each parts of detachable air conditioner of present embodiment.Although the detachable air conditioner of present embodiment is used for cooling and heating, do not narrate the work of each parts during the cooling down operation here, because cooling down operation is not with directly relevant according to operation of the present invention.
When the user sends the heating operation initiation command under above-mentioned condition, then electronic control unit 5 is connected main relay 7, provide electric power from power supply 22 to outdoor unit 200 thus, meanwhile, electric power is delivered to compressor 18, and compressor 18 begins to rotate, and, electric power is also delivered to outdoor fan motor 13 from power supply 22 through outdoor fan motor relay 16, and beginning is sent to outdoor air to outdoor heat converter, and relay 16 can be a solid-state relay (SSR) for example.And outdoor fan motor relay 16 is connected, and outdoor fan control relay 26 is connected thus, and in addition, meanwhile, electronic control unit 5 is connected heating operation relay 8, connects cross valve 12 thus.As a result, the selected coolant channel that is used for heat cycles, beginning heating operation.
CT24 in the electronic control unit 5 plays a part the receiving system of the detection signal of mechanical type Temperature Detector 23, and in the heating operation that passes through, CT24 discerns certain current value.Under these conditions, when the temperature of outdoor heat converter becomes less than-3 ℃, then mechanical type Temperature Detector 23 is connected, and the connection of outdoor fan motor switch 25 switches to splicing ear Y from splicing ear X, the result, the electric power of delivering to outdoor fan motor 13 through splicing ear X of outdoor fan motor switch 25 is sent here from the splicing ear Y that receives heating operation relay 8, the result, no current flows through the circuit of the splicing ear X of outdoor fan motor switch 25, and the current value at CT24 place fades to from a certain value and is almost 0.Because detecting this electric current of the CT24 that flows through changes, electronic control unit 5 identifies mechanical type Temperature Detector 23 and has moved, send deicing operation initiation command according to the flow process of Fig. 2, Fig. 2 is the flow chart of expression by present embodiment control of execution when the deicing operation begins thereupon.
Referring to Fig. 2, mechanical type Temperature Detector 23 is at first connected, and the current value of CT24 drops to and is almost 0 (step 101) in the electronic control unit 5 of flowing through subsequently.The checkout gear of electronic control unit 5 confirms that relay 16 is in " connection " state (step 102), the dead time of confirming CT24 with timer has continued a predetermined time interval (for example 50 seconds) or longer (step 103), in other words, electronic control unit 5 sends deicing operation commencing signal when the frosting detection signal of mechanical type Temperature Detector 23 is continued to receive in a period of time interval by CT24, and judgment means is selected the deicing attendant exclusion time interval (step 104) according to the current counting N of the operation of the deicing in the counter that is stored in electronic control unit 5.When the counting N of deicing operation is 0, judgment means judges whether be no less than the deicing attendant exclusion time interval (as 30 minutes) running time after last once deicing operation, when be not less than 30 minutes running time, the counting N of deicing operation increases by 1 (step 107), and connects timer with counting deicing operating time interval (step 108).
On the other hand, when the counting N in step 104 deicing operation is judged as 1 or bigger, then judgment means judges whether interval running time behind deicing last time EO is not less than another deicing attendant exclusion time interval (as 60 minutes) (step 105), when be not less than 60 minutes running time at interval, then the current counting N of deicing operation increases by 1 (step 107), and connects timer with counting deicing operating time interval (step 108).
When the dead time certain time of CT24 at interval, and superly at interval reach the predetermined deicing attendant exclusion time interval running time, then judgment means makes the deicing operand that is stored in the counter increase by 1.Judgment means is sent deicing operation commencing signal subsequently, makes the timer action, calculates the above-mentioned frost operating time at interval.
When the deicing operation signal is sent, electronic control unit 5 turn-offs heating operation relay 8, turn-off cross valve 12 and outdoor fan motor 13 thus, when such shutoff cross valve 12 and outdoor fan motor 13, beginning deicing operation is operated by deicing, cold-producing medium carries out cooling down operation through being used for the passage of cool cycles.
Thereafter, continue to carry out cooling down operation, the frost fusing in the outdoor heat converter is when the temperature of mechanical type Temperature Detector 23 is raised to 4 ℃, mechanical type Temperature Detector 23 is turned off, and electric power is delivered to outdoor fan motor 13 from the splicing ear X of outdoor fan motor switch 25 once more.So outdoor fan motor 13 is started once more, the electric current CT24 that flows through, the result, electronic control unit 5 identifies mechanical type Temperature Detector 23 and has been turned off.Send the order of deicing EO according to flow chart among Fig. 3 then.Fig. 3 is the flow chart that expression is controlled when deicing finishes according to present embodiment.
Referring to Fig. 3, mechanical type Temperature Detector 23 at first is turned off, and the current value of the CT24 that flows through becomes a certain value from being almost 0, and judgment means is turn-offed outdoor fan motor relay 16 once (step 202) then, and after this, judgment means stops outdoor fan motor 13 again.Then, calculation element in the judgment means mat electronic control unit 5 and timer calculate the defrost time interval t that begins " disconnection " state that changes to (that is, the current value of " disconnection " STA representation CT24 becomes greater than 0 and arrives a predetermined value) to mechanical type Temperature Detector 23 from the deicing operation.In other words, judgment means by the current value of CT24 be almost 0 the time be carved into CT24 current value become greater than 0 the moment and calculate deicing time interval t.Note, in the present embodiment, the moment that the beginning of deicing operation is connected corresponding to mechanical type Temperature Detector 23.
As mentioned above, electronic control unit 5 sends the deicing operation stop command after through predetermined deicing operating time interval, stop the deicing operation, so total deicing operating time is defined as at interval from the deicing operation and begins to add according to the determined deicing operation duration of the table fixed according to the deicing time interval to the time interval that mechanical type Temperature Detector 23 turn-offs the moment.But, for avoiding producing extraordinary noise, execute deicing operation at least 1 minute at the select time of cross valve 12, and no matter begin what to be to the time between the moment that mechanical type Temperature Detector 23 turn-offs from the deicing operation.In the present embodiment, Zui Da total deicing operating time is set at 12 minutes at interval.
As shown in Figure 1,, carry out outdoor fan control, raise with the pressure that prevents compressor 18 by the outdoor fan control relay 26 of outdoor fan motor relay 16 controls, and no matter " connection " or " disconnection " state of mechanical type Temperature Detector 23.
When mechanical type Temperature Detector 23 during at " disconnection " state, outdoor fan motor 13 is the control on/off by the on/off operation of outdoor fan motor relay 16.
On the other hand, when mechanical type Temperature Detector 23 is connected, make 26 actions of outdoor fan control relay by turn-offing outdoor fan motor relay 16.The connection of outdoor fan motor switch 25 forwards splicing ear X to from splicing ear Y.So outdoor fan motor 13 is in can provide the state of electric power to it again from the splicing ear X of outdoor fan motor switch 25.But because outdoor fan motor relay 16 is in " disconnection " state, thereby outdoor fan motor 13 also is in " disconnection " state.
And, when mechanical type Temperature Detector 23 is in " connection " state, the connection of outdoor fan motor switch 25 switches to splicing ear Y owing to the contact of outdoor fan motor relay 16 from splicing ear X, so electric power is delivered to outdoor fan motor 13 from power supply 22 through heating operation relay 8.
As a result, outdoor fan can be controlled by outdoor fan motor relay 16, and irrelevant with " connection " or " disconnection " state of mechanical type Temperature Detector 23.
The embodiment of above-mentioned detachable air conditioner further has indoor temperature detector (not shown), to detect the temperature of heat exchanger in the indoor unit 100, when the indoor temperature detector detects temperature at the indoor heat converter place and is higher than predetermined value, the indoor temperature detector is sent to electronic control unit 5 with detection information, and the temperature information of indoor heat converter is used as one of storage deicing operation beginning condition in electronic control unit 5 and is included.When the temperature of indoor heat converter reaches predetermined value or when higher, send deicing operation initiation command, by this indoor temperature checkout gear being set and the state of temperature at indoor heat converter place being included in the deicing operation beginning condition as mentioned above, can more suitably select deicing operation zero hour.
Under the situation of detachable air conditioner outdoor unit 200 frostings, the rate of rise of frost has difference, depending on owing to the temperature of outdoor heat converter is reduced by outdoor low temperature increases still frost owing to stop to reduce when avoiding compressor pressure to raise compressor pressure at outdoor fan and make and whitely increase in higher relatively outside air temperature in outdoor low temperature, under a kind of situation in back, because the pressure of compressor reduces when outdoor fan stops, frost increases in higher relatively outside air temperature gradually, and this moment, the on/off of control room external fan raise with the pressure that prevents compressor.So, the so-called normal heating operating time between deicing operation and the operation of deicing next time at interval can be than under last situation under one situation of back big, because this cause, under one situation of back, can postpone deicing and operate the zero hour, the room conditioning temperature can be as much as possible little to departing from of design temperature like this.
As mentioned above, in the detachable air conditioner of present embodiment, the indoor temperature detector of indoor heat converter setting by measuring the high pressure conditions that temperature detects indoor heat converter, and is delivered to electronic control unit 5 with temperature information.Electronic control unit 5 forethoughts concern between the low pressure of the high pressure of indoor heat converter 5 and outdoor heat converter, so, electronic control unit 5 identifies the high pressure conditions of indoor heat converter according to temperature information, and estimate the low pressure situation of outdoor heat exchange, when electronic control unit 5 identifies deicing that low voltage value is not more than outdoor heat exchange and operates necessary predetermined value, send deicing operation initiation command, like this, in the detachable air conditioner of present embodiment, use the rate of rise of estimating frost in the outdoor unit 200 from the temperature information of indoor heat converter, and the temperature information from indoor heat converter is included as one of deicing operation initiation command condition, therefore, might determine deicing operation zero hour exactly, the result, in the detachable air conditioner of present embodiment, indoor temperature and design temperature to depart from because of prolonging the heating operation time as much as possible and postponing deicing operation zero hour be minimum.
In addition, when having determined that total deicing operating time at interval, begin to carry out deicing operation control to the storage list that mechanical type Temperature Detector 23 turn-offs the information in the time interval of operating beginning according to the flow that comprises the indoor fan place with from the deicing operation.Like this, the deicing operation of present embodiment can more suitably constantly carried out.
According to the present invention, in the outdoor unit 200 of detachable air conditioner of the present invention, the electronic control unit that comprises semiconductor devices is not set.So the deicing operation control unit can be done more high temperature resistantly, cost is low, and improves maintainability, and in addition, the frosting of outdoor heat converter/deicing state is directly detected by the temperature of measuring chamber outer heat-exchanger.So, when the different model of design, need not to determine design temperature and other value.As a result, the detachable air conditioner of present embodiment can have high adaptability.
In split type empty air adjusting machine according to the present invention, mechanical type temperature-detecting device (promptly being arranged on the mechanical type Temperature Detector in the outdoor unit heat exchanger), detect the frosting state at outdoor unit heat exchanger place, checkout gear is delivered to electronic control unit in the indoor unit with the driving power circuit of outdoor fan motor with the frosting condition information.Electronic-controlled installation (being the electronic control unit of indoor unit), frosting condition information according to the outdoor unit heat exchanger place that sends calculates the deicing operating time at interval, and send deicing and operate initiation command, because detachable air conditioner of the present invention constitutes as mentioned above, it can reliablely and stablely carry out deicing control with the electronic-controlled installation that comprises the defect semiconductor device in the indoor unit.
In detachable air conditioner of the present invention, the mechanical type temperature-detecting device that is provided with in the indoor heat converter is by measuring the high pressure conditions that its temperature detects compressor, and according to the low pressure situation of temperature identification outdoor heat converter, when the outdoor heat converter of detachable air conditioner of the present invention detects low pressure and is not more than necessary its predetermined value of outdoor heat converter deicing operation, detachable air conditioner begins the deicing operation, the result, can determine deicing operation zero hour exactly, like this, in split type accent pocket of the present invention, departing from of indoor temperature and design temperature can be by prolonging heating operation time and delay deicing operation beginning as far as possible and being minimum.
In detachable air conditioner of the present invention, the indoor and outdoor that can be used for deicing operation control with the same quad of traditional detachable air conditioner is connected.Therefore, in detachable air conditioner of the present invention, outdoor fan can be controlled to avoid compressor pressure to raise, even be arranged in the outdoor heat converter mechanical type temperature-detecting device when action too, in other words, reduced cost by removing electronic-controlled installation good and expensive in the outdoor unit, and do not change traditional four-core indoor-number of outdoor stube cable just can obtain the suitable control that conforms to this air regulator performance.
The electronic control unit of detachable air conditioner of the present invention is considered the variation of the thermal response of checkout gear and various factors and is preestablished.So electronic control unit detects the state that must carry out the deicing operation exactly, electronic control unit also detects the state that must stop the deicing operation.Like this, the structure of this detachable air conditioner can be carried out the deicing operation suitably.
Detachable air conditioner of the present invention outputs to from the time of the deicing EO signal of the mechanical type temperature-detecting device in outdoor unit output according to the frosting detection signal estimates the frosting degree that produces at outdoor unit heat exchanger place, and detachable air conditioner begins to the time interval of input deicing EO signal being added to the correction time that changes according to this time interval from the deicing operation subsequently.As a result, can there be appropriate value in the deicing time interval, and detachable air conditioner is also proofreaied and correct the thermal response of mechanical type temperature-detecting device and the variation of each factor.As a result, even detachable air conditioner of the present invention also can carry out deicing operation control in pin-point accuracy ground when outside air temperature is low.
A kind of like this possibility is arranged, that is: frosting degree is less in the outdoor unit of detachable air conditioner of the present invention, the time interval between this has finally shortened the output of frosting detection signal and has exported from the frosting EO signal of mechanical type temperature-detecting device in the outdoor unit.In this case, if cross valve is configured to switch immediately under above-mentioned state, then can when switching, produce unusual big noise, for addressing this problem, in the detachable air conditioner of the present invention, rigid definite when the time interval that outputs to the output of frosting EO signal from the frosting detection signal is not more than a predetermined value, there is a predetermined value in the mandatory provision deicing time interval, like this, this extraordinary noise that produces when switching cross valve is reduced to minimum.
Even in traditional deicing operation control, the deicing attendant exclusion time interval is also arranged, with the time interval of regulation operation beginning from the deicing EO to deicing next time, like this, force to forbid the deicing operation in the preset time interval, this deicing attendant exclusion time interval is constant, irrelevant with the number of times of deicing operation, but the temperature of outdoor heat converter is higher relatively when the deicing EO, and this moment, frost relatively was not easy to increase.So, the deicing attendant exclusion time interval after repeating the operation of deicing several times should be greater than forbidding the time interval when air-conditioner brings into operation, in general, the time interval when the time interval that repeats the operation beginning from the deicing EO to deicing next time of the operation back of deicing several times is greater than when air-conditioner brings into operation first time deicing operation beginning, in addition, having increasesd slowly after carrying out the operation of deicing several times, because these causes, in detachable air conditioner of the present invention, counting is from the bring into operation number of times of deicing operation of air-conditioner, so that suitably control the deicing attendant exclusion time interval.
In detachable air conditioner of the present invention, deicing number of operations after the counter calculating that is provided with in the outdoor unit brings into operation from air-conditioner only just resets to the deicing number of operations when it adds that the electronic control unit of the receiving system of operation beginning/stop signal is received stop signal with opposing.But, when selecting heating cooling mode of operation, do not reset in this numeral.Like this, with suitable timing reset deicing number of operations, it is because underlying cause that the number of times that deicing is operated when selecting heating/cooling down operation line mode does not reset according to detachable air conditioner of the present invention.The temperature of certain outdoor heat converter becomes higher when the heating operation mode switches to the cooling down operation mode.If the deicing number of operations resets when mode of operation is selected, then remove action row and forbid that the correction in the time interval almost is skimble-skamble, also shortened the heating operation time simultaneously, this can cause indoor temperature to depart from design temperature.
In detachable air conditioner of the present invention, CT, timer and the calculation element that is arranged on the indoor fan drive circuit in the indoor unit is used for the outer flow of counting chamber internal fan, until beginning deicing operation, and, determine that with judgment means and Biao Lai the deicing operating time at interval, when the flow of indoor fan changed, the frosting degree that the outdoor heat converter place produces also changed.So detachable air conditioner of the present invention is according to the flux modification deicing operating time interval at indoor fan place, suitably to be set at interval the deicing operating time.Prolong the heating operation time as far as possible longways thus.And detachable air conditioner of the present invention is by the temperature of mechanical type temperature-detecting device sensing chamber outer heat-exchanger, to carry out the deicing operation control of pin-point accuracy.
In detachable air conditioner of the present invention, be used as the running status that outdoor fan moves checkout gear and is arranged on the relay sensing chamber external fan in the indoor unit, when judgment means is confirmed outdoor fan at " disconnection " state, be left in the basket from the frosting detection signal that is arranged on mechanical type temperature-detecting device in the outdoor unit, thereby can not carry out deicing operation control.Considering that carrying out outdoor fan controls under the situation that prevents the compressor pressure rising, adopts this operation to prolong the time interval of heating operation as far as possible.When the external fan of control room, detachable air conditioner of the present invention is ignored the frosting detection signal from the mechanical type temperature-detecting device, operates the zero hour thereby deicing suitably is set.
Although narrated the present invention with present preferred embodiment, this announcement should be understood and restriction should be do not regarded as, undoubtedly, concerning the one skilled in the art, after having read above-mentioned explanation, obviously can make various changes and modification.Like this, appended claim should be believed to comprise all changes and the modification in essence of the present invention and the scope.
Claims (10)
1, a kind of detachable air conditioner has indoor unit and outdoor unit, it is characterized in that, comprising:
Be arranged on temperature detecting unit in the described outdoor unit, that when outdoor unit side heat exchanger is lower than predetermined set point of temperature, export the frosting detection signal;
Be arranged in the described indoor unit, with the described frosting detection signal of described temperature-detecting device output receiving system as input;
In order to confirm described outdoor unit side heat exchanger frosting state, when in enough predetermined stipulated times, continuing to have described frosting detection signal to import, to export the electronic-controlled installation that commencing signal is operated in deicing to described receiving system;
The deicing control device that when the described deicing action of input commencing signal, carries out the deicing operation;
And the jockey that described indoor unit and described outdoor unit are electrically connected.
2, detachable air conditioner as claimed in claim 1 is characterized in that, described jockey comprises:
First connect electric wire with what be arranged on that temperature-detecting device circuit in the outdoor unit is connected with the indoor unit power supply;
Second connect electric wire with what the cross valve circuit of described temperature-detecting device circuit, outdoor fan motor circuit and outdoor unit was connected with described indoor unit power supply;
The 3rd connect electric wire with what a described cross valve circuit and a link of outdoor fan motor switching device shifter were connected with described indoor unit power supply;
The 4th connect electric wire with what described outdoor fan motor circuit another link by described outdoor fan motor switching device shifter was connected with described indoor unit power supply.
3, detachable air conditioner as claimed in claim 1, it is characterized in that, the temperature-detecting device that is arranged on outdoor unit is made of the switch according to the temperature action, being set in negative zone moves one side, make another side action in positive zone, the frosting and the deicing done state of cell side heat exchanger outside the described temperature-detecting device sensing chamber.
4, detachable air conditioner as claimed in claim 1, it is characterized in that, when being arranged on temperature-detecting device in the outdoor unit and detecting outdoor unit side heat exchanger deicing done state, the deicing end signal is exported to receiving system, when described receiving system is received in the described deicing detection of end signal of described temperature-detecting device output, electronic-controlled installation calculates from receiving deicing action commencing signal to the time that receives till the described deicing end signal, utilize judgment means and simultaneously, the decision described deicing end signal of reception later deicing actuation time by the retrieval of tabling look-up.
5, detachable air conditioner as claimed in claim 1, it is characterized in that, described detachable air conditioner is to constitute like this, promptly beginning deicing and move time till the deicing end signal that receives the temperature-detecting device that is arranged on outdoor unit less than predetermined regulation deicing during actuation time according to being arranged on the receiving system of indoor unit and timer, pressure is carried out the deicing of described regulation deicing time and is moved.
6, detachable air conditioner as claimed in claim 1, it is characterized in that, the electronic-controlled installation utilization is arranged on the counter of indoor unit the deicing action frequency that moves after beginning is counted, deicing action frequency according to counting, the deicing action frequency of storing in the updated stored circuit, up-to-date deicing action frequency according to upgrading utilizes judgment means and the retrieval of tabling look-up, and decision deicing action is forbidden the time.
7, detachable air conditioner as claimed in claim 1, it is characterized in that, described electronic-controlled installation calculates the deicing number of operations that brings into operation and count from air-conditioner with the counter in the described indoor unit, the deicing number of operations of delivering to memory only just resets when the described receiving system that receives beginning/stop signal is received described stop signal, and does not reset when selecting mode of operation.
8, detachable air conditioner as claimed in claim 1, it is characterized in that, the electronic-controlled installation utilization is arranged on the indoor fan working voltage that the indoor unit side heat exchanger in the indoor unit uses and the actuation time of indoor electric fan, calculate deicing action beginning indoor fan air quantity before by arithmetic unit, utilize judgment means and the retrieval of tabling look-up, decision deicing actuation time.
9, detachable air conditioner as claimed in claim 1, it is characterized in that, described electronic-controlled installation moves the running status that checkout gear detects described outdoor fan with the outdoor fan that is arranged in the described indoor unit, and when judgment means is judged described outdoor fan at " disconnection " state, described electronic-controlled installation is not in response to described frosting detection signal, and deicing operation control is inoperative thus.
10, a kind of detachable air conditioner has indoor unit and outdoor unit, it is characterized in that, comprising:
Be arranged on first temperature-detecting device in the described outdoor unit, that when outdoor unit side heat exchanger is lower than predetermined set point of temperature, export the frosting detection signal;
Be arranged in the described indoor unit, second temperature-detecting device of cell side heat exchanger temperature in the sensing chamber;
Be arranged in the described indoor unit, with the described frosting detection signal of described first temperature-detecting device output receiving system as input;
For confirm described outdoor unit side heat exchanger frosting state, when described receiving system being continued have described frosting detection signal input and described receiving system had the temperature detection signal input that described second temperature-detecting device detects in enough predetermined stipulated time, utilize judgment means and the retrieval of tabling look-up be judged as described outdoor unit side heat exchanger be in the authorized pressure that need carry out the deicing action when following the output deicing move the electronic-controlled installation of commencing signal;
The deicing control device that when the described deicing action of input commencing signal, carries out the deicing action;
And the jockey that described indoor unit and described outdoor unit are electrically connected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7268207A JPH09113075A (en) | 1995-10-17 | 1995-10-17 | Indoor/outdoor separation type air conditioner |
| JP268207/95 | 1995-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156809A CN1156809A (en) | 1997-08-13 |
| CN1090736C true CN1090736C (en) | 2002-09-11 |
Family
ID=17455416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96122652A Expired - Fee Related CN1090736C (en) | 1995-10-17 | 1996-10-17 | Split type air conditioner |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0789201B1 (en) |
| JP (1) | JPH09113075A (en) |
| CN (1) | CN1090736C (en) |
| ES (1) | ES2182936T3 (en) |
| MY (1) | MY117758A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3815463B2 (en) * | 2003-08-27 | 2006-08-30 | 松下電器産業株式会社 | Separate air conditioner |
| JP2009085563A (en) * | 2007-10-03 | 2009-04-23 | Panasonic Corp | Air conditioner |
| MX2017009024A (en) | 2015-01-08 | 2018-09-12 | Bry Air Asia Pvt Ltd | Split type sorption air conditioning unit. |
| CN108679782B (en) | 2018-05-07 | 2020-09-04 | 广东美的暖通设备有限公司 | Air conditioner defrosting control method and device |
| CN110631186B (en) * | 2018-06-25 | 2021-07-23 | 重庆海尔空调器有限公司 | Defrosting control method and device for air conditioner |
| CN110926093B (en) * | 2019-12-06 | 2021-07-23 | 四方科技集团股份有限公司 | On-demand defrosting method for air cooler |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017976B2 (en) * | 1981-03-24 | 1985-05-08 | シャープ株式会社 | air conditioner |
| JPS5946439A (en) * | 1982-09-08 | 1984-03-15 | Toshiba Corp | Control signal circuit of split type air conditioner |
| JPH07190458A (en) * | 1993-12-28 | 1995-07-28 | Matsushita Electric Ind Co Ltd | Indoor/outdoor unit separate type air conditioner |
| JP3680336B2 (en) * | 1995-01-27 | 2005-08-10 | 松下電器産業株式会社 | Internal / external separation type air conditioner |
-
1995
- 1995-10-17 JP JP7268207A patent/JPH09113075A/en active Pending
-
1996
- 1996-10-14 MY MYPI96004257A patent/MY117758A/en unknown
- 1996-10-14 EP EP96116437A patent/EP0789201B1/en not_active Expired - Lifetime
- 1996-10-14 ES ES96116437T patent/ES2182936T3/en not_active Expired - Lifetime
- 1996-10-17 CN CN96122652A patent/CN1090736C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2182936T3 (en) | 2003-03-16 |
| EP0789201A3 (en) | 2000-01-19 |
| JPH09113075A (en) | 1997-05-02 |
| EP0789201A2 (en) | 1997-08-13 |
| MY117758A (en) | 2004-08-30 |
| CN1156809A (en) | 1997-08-13 |
| EP0789201B1 (en) | 2002-08-28 |
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