What is the difference between Midea air conditioner DC inverter and full DC inverter?

The difference between Midea's DC inverter air conditioner and full DC inverter air conditioner is that the DC inverter air conditioner is only controlled by inverter compressor, while the full DC inverter air conditioner is controlled by inverter in addition to the compressor, and the fans of indoor units and outdoor units are also inverter-controlled. Therefore, full DC frequency conversion is more energy-efficient and quieter than DC frequency reduction.

Inverter air conditioners are divided into three types: AC inverter, DC inverter and full DC inverter: DC inverter air conditioner is 20%-30% more energy-saving than AC inverter air conditioner, and DC inverter is better than AC inverter in terms of comfort, quietness, life, control accuracy, etc. Compared with DC inverter air conditioners, full DC inverter air conditioners are more energy-efficient and have lower noise levels.

The general DC inverter air conditioner refers to the use of DC inverter compressor in the air-conditioning compressor, and the ordinary motor in the indoor and outdoor fans; In addition to the DC inverter motor for the air-conditioning compressor, the internal and external fan motors also use DC inverter motors.

The difference between Midea air conditioner DC inverter and full DC inverter is that its power consumption is different, and its design inside is also different.

DC inverter only means that the compressor of the outdoor unit adopts DC inverter technology, while full DC inverter is the compressor of the outdoor unit, and the cooling fan and indoor unit fan all use DC inverter technology.

The difference between Midea's air conditioner DC inverter and full DC inverter, of course, is also a very big secret realm, full DC inverter is that all its functions can give you direct inverter, can be automatically adjusted.

First, the principle is different.

1. DC inverter air conditioner: an air conditioner that adopts a DC inverter control system and a corresponding DC inverter compressor.

2. Full DC inverter air conditioner: The three core motors of the air conditioner (inverter compressor motor, indoor fan motor, outdoor fan motor) all use powerful DC motors, and integrate the flexible adjustment advantages of the three DC motors through the full DC control module, and then optimize the matching of the air conditioning system.

Second, the advantages are different.

1. DC inverter air conditioner: the strongest energy-saving effect; The temperature control technology is more precise; Low-voltage start, more obvious mute effect, etc.

2. Full DC inverter air conditioner: over-change the voltage or current to adjust the speed, and the operation is more reliable; More precise operation adjustment; It has smooth and economical starting and speed regulation performance, which can achieve more accurate air conditioning operation adjustment.

3. The rotor material and performance are different.

1. DC inverter air conditioner: The rotor of the AC motor of DC inverter air conditioner uses a coil, which needs to be energized to generate a magnetic field, and the power loss has always existed.

2. Full DC inverter air conditioner: The DC motor of the full DC inverter air conditioner uses permanent magnet materials for the rotor, which basically does not use the rotor loss, and the energy-saving effect is very obvious.

Encyclopedia - full DC inverter air conditioner.

Encyclopedia - DC inverter air conditioner.

Personally, it is recommended to choose a full DC inverter air conditioner, which has low decibel level for indoor and outdoor operation, beautiful appearance, low power consumption and low carbon. The three core motors of inverter air conditioners (inverter compressor motors, indoor fan motors, and outdoor fan motors) all use high-power DC motors. The full DC control module integrates the flexible adjustment of three DC motors, so as to clearly and optimally match the air conditioning system, and give full play to the excellent performance of the full DC inverter air conditioner.

On the basis of ordinary air conditioners, inverter air conditioners use special inverter compressors and increase inverter control systems.

Full DCFrequency conversion air Qingling tuneThe differences between inverter air conditioner and inverter air conditioner are as follows:

First, the working principle is different:

The compressor of the full DC inverter air conditioner uses a rotor of rare earth permanent magnet material, and when it is working, the magnetic field generated by the stator will directly interact with the permanent magnetic field of the rotor to make the compressor run.

The inverter air conditioner uses the rotor of the AC induction motor, when working, the stator will first produce a rotating magnetic field, and the compressor rotor will produce an induced magnetic field under the action of the stator rotating magnetic field, and the stator magnetic field and the induced magnetic field can interact to make the rotor rotate.

Second, the power consumption is different:

The power consumption of the two is different, and the full DC inverter air conditioner saves electricity more than the inverter air conditioner, but the inverter price of the full DC inverter air conditioner is high, and few brands are in production.

Third, the efficiency is different

The efficiency of the two is different, and the full DC inverter air conditioner uses a DC inverter compressor, which will be more efficient than the AC inverter compressor of the inverter air conditioner.

Fourth, the electronic control system is different

The full DC inverter air conditioner uses a full DC inverter compressor, and its electronic control system is relatively complex and belongs to synchronous control. The inverter air conditioner uses an AC motor, and the electronic control system is relatively simple and belongs to asynchronous control.

Fifth, the advantages and disadvantages are different:

Full DC inverter air conditioner is better than inverter air conditioner in terms of comfort, friendzheng virtual silence, life, control sensitivity, etc., but the cost is more expensive, so when purchasing, it is best to choose according to your own needs and economic situation.

1. The main difference between DC frequency conversion and AC frequency conversion is the working principle, power consumption, and efficiency

1. The working principle is different.

1) The rotor of AC inverter compressor adopts the rotor structure of AC induction motor, and its working principle is as follows: the stator generates a rotating magnetic field, and the rotor induces a current under the action of the stator rotating magnetic field to generate an induced magnetic field, and the rotor rotates through the interaction between the stator magnetic field and the rotor magnetic field.

2) The rotor of DC inverter compressor is made of rare earth permanent magnet material, and its working principle is as follows: the stator generates a rotating magnetic field and the rotor permanent magnetic field directly to realize the operation of the compressor.

2. The power consumption is different.

DC frequency conversion saves 15% of electricity costs compared with AC frequency conversion, and DC frequency conversion saves 45% of electricity compared with Pu Ku Tong machine, but the price of DC frequency conversion is high, and the general brand has not been put into production, so DC frequency conversion has not reached into ordinary households.

3. The efficiency is different.

The efficiency of DC inverter compressor is 10%-30% higher than that of AC inverter compressor.

Second, the lead, advantages and disadvantages.

1. AC inverter air conditioner.

Relatively speaking, it is more power-consuming and slightly noisy, and the compressor of AC inverter air conditioner uses AC motor, and the electronic control system is relatively simple, which belongs to asynchronous control.

2. DC inverter air conditioner.

DC frequency conversion saves 15% of electricity costs compared with AC frequency conversion, and DC frequency conversion is better than AC frequency conversion in terms of comfort, quietness, life, control accuracy, etc.

DC inverter and AC inverter are two common inverter technologies in air conditioners. The main difference between them is that the type of motor controlled by the frequency converter is different, DC frequency conversion controls the DC motor, while AC frequency conversion controls the AC motor. Here are their pros and cons:

DC Inverter: Advantages:

1.High efficiency: DC motors are more efficient and stable in operation than AC motors.

2.High reliability: DC motors have higher reliability and stability due to the ability to precisely control the speed and direction of the motor.

3.Energy saving: DC motors do not need to be started by starting current, thus saving energy.

Cons: 1High cost: The cost of DC motors and inverters is usually higher than that of Jiaoda rock flow motors and inverters.

2.Difficult to maintain: DC motors often require more specialized techniques for maintenance and repair.

AC Inverter: Advantages:

1.Cheap: Due to the lower cost of AC motors and inverters, the cost of AC inverter air conditioners is relatively low.

2.Simple maintenance: AC motors are easier to maintain and repair, and usually do not require the use of more specialized technologies.

3.Can be used in a wide range of applications: AC motors can be used in many different devices.

Cons: 1Lower efficiency: AC motors are less efficient than DC motors.

2.Inflexible: The speed and direction of the motor cannot be controlled as flexibly as DC inverter.

In short, DC inverter air conditioners are more energy-efficient and more reliable, while AC inverter air conditioners are less costly, and maintenance and repair are relatively simple. The specific choice of air conditioning inverter technology should be considered according to factors such as the user's budget, power demand, operational requirements and facilities to be installed.

How to distinguish To be honest, I really don't know, but I know that the current air conditioner advertising is relatively virtual As for the problem of DC and full DC, there is no need to be entangled on our side, so we never mention this problem to customers Frequency conversion is frequency conversion Ordinary is ordinary.

Because the brushes of the brushed DC motor are connected with the commutator in contact mode, there is wear and tear in operation, which makes the work unstable; At the same time, sparks are generated, but because the compressor cylinder is filled with refrigerant vapor, a brushed DC motor that generates sparks cannot be used, but a brushless DC motor.

The so-called brushless DC motor is: the stator composed of the permanent magnet of the ordinary DC motor becomes a permanent magnet made of rare earth materials, and the winding rotor of the ordinary DC motor that needs the commutator and brush to provide power becomes the stator (the stator is the same as the AC motor, and the whole distance of enameled wire is used to wind it centrally). In this way, the necessary brushes of ordinary DC motors can be omitted, so this kind of motor is called brushless DC motors.

Its speed regulation performance is similar to that of ordinary DC motors; It not only overcomes some shortcomings of ordinary DC motors, such as large electromagnetic interference, high noise, sparks, poor reliability, short life, etc., but also has some advantages that AC motors do not have, such as high operating efficiency, good speed regulation performance, no eddy current loss, etc. Therefore, compared with AC inverter air conditioners, DC inverter air conditioners have greater energy-saving advantages and have been widely adopted in recent years.

1.DC inverter air conditioner: the use of speed adjustable DC inverter compressor, in which the fan motor is AC, because the compressor from AC to DC inverter, the energy-saving effect and the performance of the whole machine have been significantly improved, but the fan motor still uses AC motor, the energy-saving level of the whole machine still has a large room for improvement.

It belongs to the second generation of air conditioners.

2.Full DC inverter air conditioner refers to the three core motors of the air conditioner (inverter compressor motor, indoor fan motor, outdoor fan motor) all use powerful DC motors. The full DC inverter air conditioner has reached an almost perfect level in terms of energy saving level and the performance of the whole machine.

It belongs to the third generation of air conditioners.

"GMV5 full DC inverter multi-line and GMV water source heat pump DC inverter multi-line unit are also new products independently developed by Gree Electric Appliances, the former adopts Gree full inverter technology, which can save up to 59% of electricity than ordinary multi-line, and can complete heating in an extremely harsh environment of minus 20 outdoors.

First, the expression is different:

J stands for AC inverter, and V stands for DC inverter.

Second, the advantages are different:

Midea's full DC inverter air conditioner integrates the flexible adjustment advantages of the three DC motors through the full DC control module, and then optimizes the matching air conditioning system, which gives full play to the excellent performance of the full DC inverter air conditioner and significantly improves the energy-saving effect.

The rotor of the AC motor of the DC inverter air conditioner is a coil, which needs to be energized to generate a magnetic field, and the power loss has always existed, while the DC motor of the full DC inverter air conditioner has basically no rotor loss due to the use of permanent magnet materials in the rotor, and the energy-saving effect is very obvious; As long as the ambient temperature is in line with the ambient temperature, Midea's full DC inverter first-class energy-efficient machine can achieve the power-saving effect of 8 hours of electricity.

Technological advantages. With the innate advantages of DC motors and the advanced control system, full DC inverter air conditioners have significant technical advantages over ordinary DC inverter air conditioners: higher hardware configuration.

Compared with the DC inverter air conditioner, the compressor only uses the DC motor, the indoor and outdoor fan motors all use the AC motor, and the compressor and indoor and outdoor fan motors of the full DC inverter air conditioner all use the DC motor, and the full DC control module is adopted; The energy-saving effect has been significantly improved.

The rotor of the AC motor of the DC inverter air conditioner is a coil, which needs to be energized to generate a magnetic field, and the power loss has always existed, while the DC motor of the full DC inverter air conditioner has basically no rotor loss due to the use of permanent magnet materials in the rotor, and the energy-saving effect is very obvious; Significantly less noisy operation.

The above content reference: Encyclopedia - full DC inverter air conditioner.