CN202229304U - Frequency conversion air conditioner - Google Patents
Frequency conversion air conditioner Download PDFInfo
- Publication number
- CN202229304U CN202229304U CN2011202705333U CN201120270533U CN202229304U CN 202229304 U CN202229304 U CN 202229304U CN 2011202705333 U CN2011202705333 U CN 2011202705333U CN 201120270533 U CN201120270533 U CN 201120270533U CN 202229304 U CN202229304 U CN 202229304U
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- Prior art keywords
- direct current
- frequency conversion
- compressor
- frequency
- air conditioner
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Abstract
The utility model discloses a frequency conversion air conditioner, which comprises a frequency conversion compressor and a direct current inverter. The frequency conversion compressor is a direct current frequency conversion compressor, direct current is input into the direct current inverter, and the direct current inverter outputs direct current which is variable in voltage to the direct current frequency conversion compressor. Other electro-parts all adopt direct current supply parts. The electric equipment compressor of the frequency conversion air conditioner directly uses an engine for supplying 110V-direct-current driving to a power source, thereby omitting an inverter for converting direct current to alternate current and a control part, simplifying an air conditioner power source part, reducing cost of the air conditioner and achieving the aim of saving energy and reducing consumption.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to a kind of convertible frequency air-conditioner.
Background technology
The diesel locomotive air-conditioning system is most at present uses traditional invariable frequency compressor, because the work of compressor fixed frequency, air-conditioning can not change according to external environment regulates refrigerating capacity, has sometimes cold and sometimes hot comfortableness difference of occupant and the too high shortcoming of power consumption.
Existing locomotive air conditioner system is an alternating frequency conversion technique for the state-of-the-art technology that solves the employing of comfortableness and power saving; Be that critical piece comprises compressor; Evaporation fan and condensation fan are satisfied the refrigeration under the different load condition and heat demand through the variation of compressor frequency by three-phase alternating current 220V or 380V driven.The problem that exists is that locomotive supply power supply is direct current 110V, must supply air-conditioning to use through converting alternating current after the inversion of boosting into.This technology not only caused power-supply system complicacy, poor stability, and the air-conditioning cost is too high owing to increased DC boosting equipment, and the separate unit cost increases about 20%, has seriously hindered this technological popularization.
Therefore, there is following problem in the air-conditioning of prior art:
(1) adopt the fixed air-conditioning of (direct current) compressor frequently can not satisfy requirement of occupant's comfortableness and power consumption high (use converter technique);
(2) adopt the air-conditioning of AC frequency conversion compressor will increase inversion boosting equipment, power-supply system is complicated, poor stability, and cost is too high.
The utility model content
The purpose of the utility model is in order to address the above problem, a kind of DC frequency converting air-conditioner to be provided, use locomotive supply power supply direct current 110V to drive, through direct-flow inverter output variable voltage direct current, offering DC frequency-changeable compressor work.
The technical scheme that the utility model is taked is:
A kind of convertible frequency air-conditioner; Comprise frequency-changeable compressor, it is characterized in that, also comprise direct-flow inverter; Said frequency-changeable compressor is a DC frequency-changeable compressor; Said direct-flow inverter input dc power, direct current to the said DC frequency-changeable compressor that output voltage is variable, other consuming parts all adopts the direct current supply parts.
Further, the input voltage of said direct-flow inverter is 110V.
Further, the output voltage range of said direct-flow inverter is 77V to 137.5V.
The utility model mainly uses 110V DC driven variable speed compressor and evaporation fan, condensation fan.The operation principle of DC frequency-changing heat pump type air conditioning system becomes high temperature and high pressure gas for the low-temp low-pressure gas refrigerant through after the compression of DC frequency-changeable compressor; Cold-producing medium gets in the copper pipe aluminium foil heat exchanger and forces heat exchange with air during refrigerating state; Flow in the finned evaporator through becoming gas-fluid two-phase mixture after the expansion valve throttling then; And therein with environment in air carry out heat exchange; Heat in the absorbing air makes the liquid refrigerant in the gas-liquid mixture be converted into gaseous state, in getting into DC frequency-changeable compressor, carries out new cyclic process then.
The beneficial effect of the utility model convertible frequency air-conditioner is:
The DC/DC stepup transformer has been omitted in the use of DC driven compressor, has simplified power inverter, so dependable performance, cost reduces greatly.Make product more energy-conservation, manufacturing cost reduces, and power consumption is few, and use cost reduces.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model frequency-conversion air-conditioning system;
Accompanying drawing 2 is dc source and AC power supply system map.
Label in the accompanying drawing is:
1. cross valve; 2. condensation fan; 3. frequency converter;
4. return air sensor; 5. go out wind sensor; 6. core body sensor;
7. two-way drier; 8. outer temperature sensor; 9. condenser;
10. compressor; 11. cycloscope; 12. expansion valve;
13. evaporimeter; 14. centrifugal blower.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model convertible frequency air-conditioner.
Referring to accompanying drawing 1; The utility model convertible frequency air-conditioner by cross valve 1, condensation fan 2, frequency converter 3, return air sensor 4, go out parts such as wind sensor 5, core body sensor 6, two-way drier 7, outer temperature sensor 8, condenser 9, compressor 10, cycloscope 11, expansion valve 12, evaporimeter 13, centrifugal blower 14 and constitute; Its mounting means is identical with prior art installation of air conditioners mode, and consuming parts wherein all adopts the direct current supply parts.
Air-conditioning with diesel locomotive is an example; The power supply of locomotive supply is the 110V dc source; The consuming parts of DC frequency converting air-conditioner all adopts 110V direct current supply parts, and direct-flow inverter is transformed into the dc source of variable voltage value at 77V to 137.5V to the 110V dc source, such as 80V, 90V, 100V, 110V, 120V, 130V etc.; Power is provided for compressor 10; Various magnitudes of voltage can make compressor 10 produce different rotating speed, and its rotating speed can change in 0 to 6000RPM scope, make air-conditioning realize the DC frequency-changing function.Referring to accompanying drawing 2, the DC/DC stepup transformer has been omitted in the use of DC driven compressor, has simplified power inverter, and cost reduces greatly, and the separate unit air-conditioning can be saved 5000 yuans to more than 10,000 yuans.DC mode efficient is higher than AC mode 10% to 15%, and the conversion of DC mode power supply is simple, and the transfer process loss can be ignored, and the AC mode conversion efficiency is low, and the highest have only 85%.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (3)
1. convertible frequency air-conditioner; Comprise frequency-changeable compressor; It is characterized in that: also comprise direct-flow inverter, said frequency-changeable compressor is a DC frequency-changeable compressor, said direct-flow inverter input dc power; Direct current to the said DC frequency-changeable compressor that output voltage is variable, other consuming parts all adopts the direct current supply parts.
2. convertible frequency air-conditioner according to claim 1 is characterized in that: the input voltage of said direct-flow inverter is 110V.
3. convertible frequency air-conditioner according to claim 2 is characterized in that: the output voltage range of said direct-flow inverter is 77V to 137.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202705333U CN202229304U (en) | 2011-07-28 | 2011-07-28 | Frequency conversion air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202705333U CN202229304U (en) | 2011-07-28 | 2011-07-28 | Frequency conversion air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229304U true CN202229304U (en) | 2012-05-23 |
Family
ID=46079889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202705333U Expired - Lifetime CN202229304U (en) | 2011-07-28 | 2011-07-28 | Frequency conversion air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917439A (en) * | 2015-05-21 | 2015-09-16 | 浪潮电子信息产业股份有限公司 | Control circuit of data center machine room variable frequency air conditioner compressor |
| CN105972894A (en) * | 2016-05-06 | 2016-09-28 | 方金湘 | Direct-current variable-frequency air conditioning unit of electric bus |
-
2011
- 2011-07-28 CN CN2011202705333U patent/CN202229304U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917439A (en) * | 2015-05-21 | 2015-09-16 | 浪潮电子信息产业股份有限公司 | Control circuit of data center machine room variable frequency air conditioner compressor |
| CN105972894A (en) * | 2016-05-06 | 2016-09-28 | 方金湘 | Direct-current variable-frequency air conditioning unit of electric bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |