CN101329090A - Variable frequency air conditioner outdoor machine - Google Patents
Variable frequency air conditioner outdoor machine Download PDFInfo
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- CN101329090A CN101329090A CNA2007100577042A CN200710057704A CN101329090A CN 101329090 A CN101329090 A CN 101329090A CN A2007100577042 A CNA2007100577042 A CN A2007100577042A CN 200710057704 A CN200710057704 A CN 200710057704A CN 101329090 A CN101329090 A CN 101329090A
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Abstract
A variable-frequency air conditioner outdoor unit mainly comprises a casing, a chassis, a variable-frequency and speed-fixing compressor, a condenser, a fan motor, an outdoor fan, a baffle and a controller component. The variable-frequency air conditioner outdoor unit also comprises an Hall sensor which is arranged on the baffle adjacent to the speed-fixing compressor or other parts and is connected with the controller and is threaded through by two wires of three-phase wires leaded from the motor in the speed-fixing compressor. The variable-frequency air conditioner outdoor unit provided by the invention not only can detect the over-current on the three-phase wire of the motor in the speed-fixing compressor but also can detect the unbalance of phase voltage and phase lack of the wire so as to prevent damages to the compressor caused by the problems, thus prolonging the service life of the air conditioner.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly relate to a kind of frequency-change air conditioner outdoor machine.
Background technology
Usually, air-conditioner is a kind of device that makes its inner refrigerant carry out the refrigeration of being made up of compression process, condensation process, expansion process and evaporation process or heat circulation.When air-conditioner carries out kind of refrigeration cycle, the refrigerant that becomes high-temperature high-pressure state through compressor compresses can flow to condenser under the guiding of cross valve, and in condenser, dispel the heat to the outside, when flowing through expansion valve, significantly reduce its temperature and pressure then, this low temperature, low pressure refrigerant can absorb heat when flowing through evaporimeter subsequently, flow back in the compressor again through fluid reservoir at last.Wherein, compression process, condensation process and expansion process are to carry out in the off-premises station of air-conditioner, and evaporation process then is to carry out under the effect of blowing fan in indoor set and evaporimeter.It is then opposite with above-mentioned kind of refrigeration cycle process to heat circulation.Fig. 1 is the frequency-change air conditioner outdoor machine external structure stereogram of prior art.Fig. 2 is the frequency-change air conditioner outdoor machine part-structure stereogram shown in Fig. 1.Fig. 3 is Hall element structural representation in the frequency-change air conditioner outdoor machine shown in Fig. 1.As Fig. 1～shown in Figure 3, the frequency-change air conditioner outdoor machine of this prior art mainly comprises: constitute off-premises station front/rear end and two lateral outer structures, and front end face is provided with air discharge grille 1, and rear end face is provided with the housing 2 of a plurality of not shown air inlets; The chassis 3 that is arranged on the bottom of housing 2 and each parts of off-premises station can be installed on it; Be arranged on top one side on chassis 3, the low-temp low-pressure gaseous coolant from off-premises station can be compressed into the frequency-changeable compressor and the constant speed compressor 4 of HTHP gaseous coolant; Not shown top opposite side that is vertically set on chassis 3 and rear part edge place, the condenser that can make HTHP gaseous coolant and the outdoor air around it mobile in it carry out heat exchange from frequency-changeable compressor and constant speed compressor 4; Be vertically set on the middle part on chassis 3, the lower end is fixed on the chassis 3, and the upper end is fixed on the end face of condenser, and the middle part is formed with the electric machine support that motor is provided with the hole; Be installed in that motor is provided with in the hole on the electric machine support, after connecting power supply, can produce the fan electromotor of rotary power; Link to each other with the output shaft of fan electromotor is anterior, thereby can rotate under the revolving force effect of fan electromotor, thereby air discharge grille 1 row of the air that extraneous air is drawn into the inside of housing 2 and will carries out heat exchange with condenser from the air inlet on housing 2 rear end faces from housing 2 front end faces is to the outdoor fan 5 of the exterior space; Be vertically set on the chassis 3 between frequency-changeable compressor and constant speed compressor 4 and condenser and the outdoor fan 5, be used to separate the baffle plate 6 that frequency-changeable compressor and constant speed compressor 4 and condenser and outdoor fan 5 are provided with the space; Be installed on the baffle plate 6, be used to control the controller 7 of off-premises station operation: and the top board 8 that is installed in housing 2 upper ends.But, there is following point in the frequency-change air conditioner outdoor machine of this prior art: can normally turn round safely in order to guarantee constant speed compressor 4, usually on baffle plate 6 in its vicinity or other parts Hall element 9 that links to each other with controller 7 is installed, to pass from the centre of Hall element 9 from a power line 10 the three-phase power line that constant speed compressor 4 interior motors are drawn simultaneously, utilize this sensor to detect the electric current of this power line 10, in case abnormal conditions such as electric current is excessive appear in power line 10, controller 7 will stop the running of constant speed compressor 4 immediately by the mode that disconnects relay, in case therefore it be damaged.But this mode that a power line 10 is set on Hall element 9 can only detect the excessive phenomenon of the electric current on a certain top on the three-phase power line, and can't detect because of unstable phase voltage imbalance and the phase shortage problem that causes of electrical network, also should stop the operation of constant speed compressor 4 if this occurs immediately, otherwise might cause the damage of compressor, thereby shorten the service life of air-conditioner.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide a kind of compressor that can prevent damage to occur, thereby can prolong the air-conditioner frequency-change air conditioner outdoor machine in service life.
In order to achieve the above object, frequency-change air conditioner outdoor machine provided by the invention mainly comprises and constitutes off-premises station front/rear end and two lateral outer structures, and front end face is provided with air discharge grille, and rear end face is provided with the housing of a plurality of air inlets; The chassis that is arranged on lower part of frame and each parts of off-premises station can be installed on it; Be arranged on top one side on chassis, the low-temp low-pressure gaseous coolant from off-premises station can be compressed into the frequency-changeable compressor and the constant speed compressor of HTHP gaseous coolant; Be vertically set on the top opposite side and the rear part edge place on chassis, the condenser that can make HTHP gaseous coolant and the outdoor air around it mobile in it carry out heat exchange from frequency-changeable compressor and constant speed compressor; Be vertically set on the middle part on chassis, the lower end is fixed on the chassis, and the upper end is fixed on the end face of condenser, and the middle part is formed with the electric machine support that motor is provided with the hole; Be installed in that motor is provided with in the hole on the electric machine support, after connecting power supply, can produce the fan electromotor of rotary power; Link to each other with the output shaft of fan electromotor is anterior, thereby can rotate under the revolving force effect of fan electromotor, thereby the air discharge grille row of the air that extraneous air is drawn into the inside of housing and will carries out heat exchange with condenser from the air inlet on the housing rear end face from the housing front end face is to the outdoor fan of the exterior space; Be vertically set on the chassis between frequency-changeable compressor and constant speed compressor and condenser and the outdoor fan, be used to separate the baffle plate that frequency-changeable compressor and constant speed compressor and condenser and outdoor fan are provided with the space; Be installed on the baffle plate, be used to control the controller of off-premises station operation; And the top board that is installed in the housing upper end; Described frequency-change air conditioner outdoor machine also comprises near the baffle plate or other parts that is installed in the constant speed compressor, links to each other with controller, and be penetrated with the Hall element of two power lines the three-phase power line that motor is drawn in constant speed compressor on it.
Described two power lines are any two in the three-phase power line on the interior motor of constant speed compressor.
Frequency-change air conditioner outdoor machine provided by the invention not only can detect the overcurrent phenomenon of three-phase power line on the interior motor of constant speed compressor, but also can detect the phase voltage imbalance and the phase shortage problem of this power line simultaneously, thereby can prevent the damage of the compressor that causes therefrom, therefore can prolong the service life of air-conditioner.
Description of drawings
Fig. 1 is the frequency-change air conditioner outdoor machine external structure stereogram of prior art.
Fig. 2 is the frequency-change air conditioner outdoor machine part-structure stereogram shown in Fig. 1.
Fig. 3 is Hall element structural representation in the frequency-change air conditioner outdoor machine shown in Fig. 1.
Fig. 4 is a Hall element structural representation in the frequency-change air conditioner outdoor machine provided by the invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments frequency-change air conditioner outdoor machine provided by the invention is elaborated.The parts identical with prior art adopt identical drawing reference numeral, and omit its explanation of carrying out.As Fig. 4 and Fig. 1～shown in Figure 2, frequency-change air conditioner outdoor machine provided by the invention mainly comprises formation off-premises station front/rear end and two lateral outer structures, and front end face is provided with air discharge grille 1, and rear end face is provided with the housing 2 of a plurality of not shown air inlets; The chassis 3 that is arranged on the bottom of housing 2 and each parts of off-premises station can be installed on it; Be arranged on top one side on chassis 3, the low-temp low-pressure gaseous coolant from off-premises station can be compressed into the frequency-changeable compressor and the constant speed compressor 4 of HTHP gaseous coolant; Not shown top opposite side that is vertically set on chassis 3 and rear part edge place, the condenser that can make HTHP gaseous coolant and the outdoor air around it mobile in it carry out heat exchange from frequency-changeable compressor and constant speed compressor 4; Be vertically set on the middle part on chassis 3, the lower end is fixed on the chassis 3, and the upper end is fixed on the end face of condenser, and the middle part is formed with the electric machine support that motor is provided with the hole; Be installed in that motor is provided with in the hole on the electric machine support, after connecting power supply, can produce the fan electromotor of rotary power; Link to each other with the output shaft of fan electromotor is anterior, thereby can rotate under the revolving force effect of fan electromotor, thereby air discharge grille 1 row of the air that extraneous air is drawn into the inside of housing 2 and will carries out heat exchange with condenser from the air inlet on housing 2 rear end faces from housing 2 front end faces is to the outdoor fan 5 of the exterior space; Be vertically set on the chassis 3 between frequency-changeable compressor and constant speed compressor 4 and condenser and the outdoor fan 5, be used to separate the baffle plate 6 that frequency-changeable compressor and constant speed compressor 4 and condenser and outdoor fan 5 are provided with the space; Be installed on the baffle plate 6, with the controller 7 of doing the operation of control off-premises station; And the top board 8 that is installed in housing 2 upper ends; Described frequency-change air conditioner outdoor machine also comprises near the baffle plate 6 or other parts that is installed in the constant speed compressor 4, link to each other with controller 7, and be penetrated with the Hall element 19 of two power lines 20,21 the three-phase power line that motor is drawn in constant speed compressor 4 on it.Described two power lines 20,21 are any two in the three-phase power line on the constant speed compressor 4 interior motors.When constant speed compressor 4 runs well, consider factors such as environment temperature, system pressure, this moment controller 7 receive the current value sum that 19 pairs of two power lines of Hall element 20,21 detect should be in certain scope, such as 8～10A.When the power supply appearance is unusual; controller 7 receives 19 pairs of two power lines 20 of Hall element; the 21 current value sums that detect will surpass 10A; with regard to showing overcurrent, phase voltage imbalance and phase shortage problem may appear like this on the constant speed compressor 4; controller 7 will stop the running of constant speed compressor 4 immediately by the mode that disconnects relay this moment; therefore in case it is damaged, thus can be more perfect to the protection of motors in the constant speed compressor 4.
When carrying out kind of refrigeration cycle when transducer air conditioning connection power supply provided by the invention, the outdoor fan 5 that is positioned at off-premises station inside will begin rotation under the drive of fan electromotor, thereby outdoor air will be drawn into the inside of off-premises station by the air inlet on housing 2 rear end faces.Meanwhile, frequency-changeable compressor and constant speed compressor 4 will begin to compress the low-temp low-pressure gaseous coolant from indoor set, will offer condenser through the HTHP gaseous coolant of overcompression then.When flowing through condenser, the refrigerant of overcompression will carry out heat exchange and to outside space heat elimination with the outdoor air around it.At last will be air discharge grille 1 row from housing 2 front end faces under the effect of outdoor fan 5 to the exterior space through the air of heat exchange, and will flow to the evaporimeter that is arranged in indoor set by expansion valve through the refrigerant of condenser condenses, and in the evaporimeter of flowing through, carry out heat exchange and reduce the temperature of room air with room air around it, refrigerant through evaporimeter will flow back in frequency-changeable compressor and the constant speed compressor 4 again at last, and so circulation can remain on the interior space under the suitable temperature repeatedly.
Claims (2)
1, a kind of frequency-change air conditioner outdoor machine mainly comprises constituting off-premises station front/rear end and two lateral outer structures, and front end face is provided with air discharge grille (1), and rear end face is provided with the housing (2) of a plurality of air inlets; The chassis (3) that is arranged on the bottom of housing (2) and each parts of off-premises station can be installed on it; Be arranged on top one side on chassis (3), the low-temp low-pressure gaseous coolant from off-premises station can be compressed into the frequency-changeable compressor and the constant speed compressor (4) of HTHP gaseous coolant; Be vertically set on the top opposite side and the rear part edge place on chassis (3), the condenser that can make HTHP gaseous coolant and the outdoor air around it mobile in it carry out heat exchange from frequency-changeable compressor and constant speed compressor (4); Be vertically set on the middle part of chassis (3), the lower end is fixed on the chassis (3), and the upper end is fixed on the end face of condenser, and the middle part is formed with the electric machine support that motor is provided with the hole; Be installed in that motor is provided with in the hole on the electric machine support, after connecting power supply, can produce the fan electromotor of rotary power; Link to each other with the output shaft of fan electromotor is anterior, thereby can rotate under the revolving force effect of fan electromotor, thereby air discharge grille (1) row of the air that extraneous air is drawn into the inside of housing (2) and will carries out heat exchange with condenser from the air inlet on housing (2) rear end face from housing (2) front end face is to the outdoor fan (5) of the exterior space; Be vertically set on the chassis (3) between frequency-changeable compressor and constant speed compressor (4) and condenser and the outdoor fan (5), be used to separate the baffle plate (6) that frequency-changeable compressor and constant speed compressor (4) and condenser and outdoor fan (5) are provided with the space; Be installed on the baffle plate (6), be used to control the controller (7) of off-premises station operation; And the top board (8) that is installed in housing (2) upper end; It is characterized in that: described frequency-change air conditioner outdoor machine also comprises near the baffle plate (6) or other parts that is installed in the constant speed compressor (4), link to each other with controller (7), and be penetrated with the Hall element (19) of two power lines (20,21) from the three-phase power line that the interior motor of constant speed compressor (4) is drawn on it.
2, frequency-change air conditioner outdoor machine according to claim 1 is characterized in that: described two power lines (20,21) are any two in the three-phase power line on the interior motor of constant speed compressor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100577042A CN101329090A (en) | 2007-06-20 | 2007-06-20 | Variable frequency air conditioner outdoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100577042A CN101329090A (en) | 2007-06-20 | 2007-06-20 | Variable frequency air conditioner outdoor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101329090A true CN101329090A (en) | 2008-12-24 |
Family
ID=40205024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100577042A Pending CN101329090A (en) | 2007-06-20 | 2007-06-20 | Variable frequency air conditioner outdoor machine |
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| Country | Link |
|---|---|
| CN (1) | CN101329090A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655982A (en) * | 2016-03-28 | 2016-06-08 | 广州七喜智能设备有限公司 | Frequency converter output current detection circuit and detection method thereof |
| CN108365975A (en) * | 2018-01-23 | 2018-08-03 | 浙江中新电力发展集团有限公司萧山科技分公司 | Intelligent network distribution system based on cloud computing |
-
2007
- 2007-06-20 CN CNA2007100577042A patent/CN101329090A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655982A (en) * | 2016-03-28 | 2016-06-08 | 广州七喜智能设备有限公司 | Frequency converter output current detection circuit and detection method thereof |
| CN105655982B (en) * | 2016-03-28 | 2018-10-30 | 广州七喜智能设备有限公司 | Output current of frequency converter detection circuit and its detection method |
| CN108365975A (en) * | 2018-01-23 | 2018-08-03 | 浙江中新电力发展集团有限公司萧山科技分公司 | Intelligent network distribution system based on cloud computing |
| CN108365975B (en) * | 2018-01-23 | 2019-08-16 | 浙江中新电力工程建设有限公司自动化分公司 | Intelligent network distribution system based on cloud computing |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081224 |