Highly integrated intelligent power module and air conditioner

Abstract

The present invention discloses a highly integrated intelligent power module and an air conditioner. The variable capacity and heat-increasing compressor device includes multiple compressors. The highly integrated intelligent power module comprises: a main controller for outputting corresponding control signals based on the operating parameters of the air conditioner, including the operating mode and the outdoor ambient temperature; multiple compressor IPM modules, the number of which corresponds to the number of compressors in the variable capacity and heat-increasing compressor device; controlled terminals of the multiple compressor IPM modules being connected one-to-one to the control terminal of the main controller; and the multiple compressor IPM modules being configured to drive the corresponding compressors in response to the control signals. The present invention facilitates low-power, high-efficiency operation of the air conditioner, saving energy and protecting the environment. The use of the highly integrated intelligent power module can also reduce the size of the electronic control board, facilitating installation.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic circuits, and in particular to a highly integrated intelligent power module and an air conditioner. Background Art

[0002] As people's living standards improve, their requirements for quality of life are also getting higher and higher. Among them, the popularization of air conditioners is an important part of improving life comfort.

[0003] Inverter air conditioners typically use a single-rotor compressor. During operation, the rotor is subjected to unidirectional force, resulting in high vibration and noise. Furthermore, due to noise constraints, the compressor's maximum operating frequency should not be too high, which undoubtedly limits the compressor's output capacity, resulting in slower cooling and heating speeds and poorer results. Conventional air conditioners using dual-rotor compressors consume more electricity, especially at low loads, as the power draw of the dual-rotor compressor is relatively high, reducing the air conditioner's energy efficiency. Furthermore, existing air conditioner all-DC variable-frequency drive systems consist of multiple modules with different functions, located on separate electronic control boards, which can increase the size and cost of the entire electronic control system. Summary of the Invention

[0004] The main purpose of the present invention is to provide a highly integrated intelligent power module and an air conditioner, which aims to solve the problem.

[0005] To achieve the above objectives, the present invention provides a highly integrated intelligent power module for use in an air conditioner having a variable capacity and heat-increasing compressor device, wherein the variable capacity and heat-increasing compressor device includes multiple compressors. The highly integrated intelligent power module includes:

[0006] a main controller for outputting corresponding control signals according to operating parameters of the air conditioner, wherein the operating parameters of the air conditioner include an operating mode and an outdoor ambient temperature;

[0007] Multiple compressor IPM modules, the number of the compressor IPM modules corresponds to the number of compressors of the variable capacity and heat-increasing compressor device; the controlled ends of the multiple compressor IPM modules are connected one-to-one with the control end of the main controller; the multiple compressor IPM modules are used to drive the corresponding compressors to work according to the control signal.

[0008] Optionally, when the air conditioner operates in heating mode, when the outdoor ambient temperature is lower than a first preset temperature, the main controller controls the plurality of compressor IPM modules to operate simultaneously.

[0009] Optionally, when the air conditioner operates in cooling mode, when the outdoor ambient temperature is greater than a second preset temperature, the main controller controls the plurality of compressor IPM modules to operate simultaneously.

[0010] Optionally, the main controller is further configured to control the operation of part or all of the compressor IPM modules according to the user-set temperature and the indoor ambient temperature in the operating parameters of the air conditioner.

[0011] Optionally, the highly integrated intelligent power module further includes:

[0012] The fan IPM module is connected to the third control terminal of the main controller, and is used to drive the fan in the air conditioner to work according to the third control signal output by the main controller.

[0013] Optionally, the fan IPM module includes a fan driver chip and a fan power module, the multiple signal input terminals of the fan driver chip are correspondingly connected to the third control terminal of the main controller, and the multiple output terminals of the fan driver chip are one-to-one connected to the multiple controlled terminals of the fan power module.

[0014] Optionally, the number of the compressor IPM modules is two.

[0015] Optionally, each of the compressor IPM modules includes a compressor driver chip and a compressor power module, the signal input end of the compressor driver chip is connected to the control end of the main controller, and the multiple output ends of the compressor driver chip are one-to-one connected to the multiple controlled ends of the compressor power module.

[0016] Optionally, the compressor IPM module further includes a PFC power switch, and a controlled end of the PFC power switch is connected to an output end of the compressor driver chip.

[0017] Optionally, the highly integrated intelligent power module further includes:

[0018] A rectifier bridge is provided between an AC input terminal and power input terminals of the plurality of compressor IPM modules.

[0019] Optionally, the highly integrated intelligent power module further includes:

[0020] An installation substrate is provided with installation positions, and the main controller and the plurality of compressor IPM modules are arranged on the corresponding installation positions;

[0021] A packaging shell is provided in which the mounting substrate, the main controller and the plurality of compressor IPM modules are arranged.

[0022] The present invention also provides an air conditioner, comprising the highly integrated intelligent power module as described above.

[0023] The highly integrated intelligent power module of the present invention utilizes a main controller to control the operation of a corresponding number of compressor IPM modules according to the air conditioner's operating mode and the main controller, thereby driving the variable-capacity, heat-increasing compressor device to start or operate in either conventional or jet heat-increasing modes. This achieves high-capacity output from the air conditioner, rapidly heating or cooling the indoor environment. It also reduces compressor vibration and noise, enabling low-power, high-efficiency operation, saving energy and protecting the environment. The highly integrated intelligent power module also reduces the size of the electronic control board, facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a functional module diagram of an embodiment of a highly integrated intelligent power module of the present invention;

[0026] Figure 2 This is a schematic diagram of the circuit structure of an embodiment of a highly integrated intelligent power module of the present invention;

[0027] Figure 3 This is a functional module diagram of another embodiment of a highly integrated intelligent power module of the present invention;

[0028] Figure 4 Energy efficiency / output capacity curves for single compressor and multiple compressors;

[0029] Figure 5 FIG. 1 is a structural diagram of an embodiment of a highly integrated intelligent power module of the present invention.

[0030] Description of Figure Numbers:

[0031]

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention proposes a highly integrated intelligent power module for use in air conditioners equipped with a variable capacity, regenerative braking compressor device. The variable capacity, regenerative braking compressor device includes multiple compressors. The air conditioner is typically also equipped with a temperature sensor, a communication module for communicating with an air conditioner remote control, a mobile phone, or the like, such as an infrared sensor module or a Wi-Fi module, and an acquisition module for obtaining the air conditioner's operating parameters. This acquisition module can be the MCU of the air conditioner's indoor unit or the outdoor unit. The acquisition module can determine the current operating mode of the air conditioner, as well as parameters such as the speed, current, and voltage during operation, based on the temperature detected by the temperature sensor and user-set parameters acquired by the communication module. The indoor unit MCU can control the air conditioner's operation in modes such as cooling or heating based on the user-set parameters transmitted from the remote control. Furthermore, the indoor unit MCU can adjust the air conditioner's operating parameters to match the user's set temperature to meet customer needs.

[0035] When an air conditioning system operates in low-temperature heating conditions, the difference between the evaporating temperature of the outdoor heat exchanger and the ambient temperature is minimal due to the low outdoor ambient temperature. Consequently, the amount of heat absorbed from the outside environment is relatively small, resulting in a large amount of refrigerant accumulating in the outdoor unit's heat exchanger and gas-liquid separator. This leads to insufficient compressor intake and exhaust volume, significantly reducing indoor heat generation. Currently, systems with jet reheating are being used to increase heating capacity. This typically involves using a heat exchanger to generate medium-pressure gaseous refrigerant, which is then used as injection gas for the outdoor unit's main compressor. However, the low enthalpy of this injection gas results in low jet reheating efficiency for the air conditioning system. Furthermore, due to noise limitations, the maximum operating frequency of this compressor should not be too high, which undoubtedly limits the compressor's output capacity, resulting in slower cooling and heating speeds and poorer cooling and heating performance. Air conditioners using twin-rotor compressors consume a lot of electrical energy, especially at low loads, as the power consumption of the twin-rotor compressor is relatively high, reducing the air conditioner's energy efficiency.

[0036] In order to improve the energy efficiency of the air conditioner, the variable capacity and heat-increasing compressor device of this embodiment is provided with multiple compressors, for example, two. The highly integrated intelligent power module controls the operation of a corresponding number of IPM modules, thereby driving the corresponding number of compressors to operate, meeting the cooling / heating requirements under different working conditions, and at the same time helping to improve the energy efficiency of the air conditioner. Figure 1 and Figure 2 In one embodiment of the present invention, the highly integrated intelligent power module includes:

[0037] The main controller 10 is used to output a corresponding control signal according to the operating parameters of the air conditioner, wherein the operating parameters of the air conditioner include the operating mode and the outdoor ambient temperature;

[0038] Multiple compressor IPM modules 20, the number of which corresponds to the number of compressors of the variable capacity and heat-increasing compressor device; the controlled ends of the multiple compressor IPM modules are connected one-to-one with the control end of the main controller 10; the multiple compressor IPM modules are used to drive the corresponding compressors to work according to the control signal.

[0039] In this embodiment, the main controller 10 in the intelligent power module integrates a logic controller, a memory, a data processor, etc., as well as a software program and / or module stored in the memory and executable on the data processor. The main controller 10 outputs a corresponding control signal to the compressor IPM module 20 of the intelligent power module by running or executing the software program and / or module stored in the memory, and calling the data stored in the memory, so that the compressor IPM module drives the compressor according to the received control signal. The number of compressor IPM modules 20 can be two or more. For example, in a multi-split system with multiple indoor units and multiple outdoor units, the number of compressor IPM modules 20 can be set according to the number of outdoor units. Among them, the number of compressor IPM modules 20 can be two, or more than two. The following embodiments are all described as examples. Correspondingly, when one compressor IPM module 20 is operating to drive one compressor in the variable capacity and regenerative enthalpy compressor device 100, the variable capacity and regenerative enthalpy compressor device 100 can operate in a single-cylinder jet regenerative enthalpy mode, or the compressor does not inject air and does not increase enthalpy, and the variable capacity and regenerative enthalpy compressor device 100 operates in a normal mode. When two compressor IPM modules 20 drive both compressors in the variable capacity and regenerative enthalpy compressor device 100 to operate simultaneously, the variable capacity and regenerative enthalpy compressor device 100 operates in a dual-cylinder jet regenerative enthalpy mode, that is, both compressors operate simultaneously, so that the regenerative enthalpy compressor uses jet regenerative enthalpy.

[0040] The main controller 10 can be connected to the MCU of the indoor unit of the air conditioner, or to the MCU of the outdoor unit of the air conditioner, and can obtain the operating parameters of the air conditioner by communicating with the MCU, such as the indoor ambient temperature, outdoor ambient temperature, current operating speed of the compressor, operating mode of the air conditioner, system pressure of the air conditioner, etc. The present embodiment can optionally determine the number of operations of the compressor IPM module 20 that need to be controlled according to the operating mode of the air conditioner and the outdoor ambient temperature. For example, in the heating mode, when the outdoor ambient temperature is low, or in the cooling mode, when the outdoor ambient temperature is high, both situations will result in a small temperature difference with the evaporation temperature of the outdoor heat exchanger. Figure 4 , Figure 4The energy efficiency / output capacity curves for a single compressor (single cylinder) and multiple compressors (dual cylinder) are shown. Therefore, when the temperature difference is small, the load of a single compressor may be large, and the output capacity may not meet the operating requirements. The energy consumption of the air conditioner is large, and the energy efficiency of the air conditioner is relatively low. It is necessary to increase the enthalpy value of the gaseous refrigerant in the compressor. When the temperature difference is large, the output capacity of a single compressor can meet the operating requirements, the energy efficiency is high, and the compressor can be controlled to operate in a normal mode. Based on the acquired operating parameters, the main controller 10 can establish and store a mapping relationship between the outdoor ambient temperature, the operating mode, and the number of compressor IPM modules 20 controlled. Therefore, when operating, the corresponding control signal is output according to the acquired operating mode and the ambient temperature of the outdoor unit to control one compressor IPM module 20 to work, or to control two compressor IPM modules 20 to work simultaneously. It can be understood that as the ambient temperature of the outdoor unit changes, the number of compressor IPM modules 20 working can also be switched. For example, within a day, in an environment with a large temperature difference between day and night, when the temperature difference between the outdoor ambient temperature and the evaporation temperature of the outdoor heat exchanger is small at night, multiple compressor IPM modules 20 work simultaneously, and when the temperature difference between the outdoor ambient temperature and the evaporation temperature of the outdoor heat exchanger is large during the day, it can be switched to one compressor IPM module working independently.

[0041] In another embodiment, the main controller 10 may also operate under the control of the air conditioner indoor unit MCU. After the MCU outputs corresponding control instructions based on the operating mode and the ambient temperature of the outdoor unit, the main controller 10 outputs corresponding control signals based on the control instructions to control the operation of a single compressor IPM module or to control the simultaneous operation of multiple compressor IPM modules 20. When controlling the operation of a single compressor IPM module, the compressor IPM module drives a single compressor, in which case the compressor does not inject air and does not increase enthalpy. When controlling the operation of multiple compressor IPM modules 20, the multiple compressor IPM modules 20 each drive multiple compressors to operate simultaneously, in which case the compressors inject air and increase enthalpy.

[0042] The highly integrated intelligent power module of the present invention is provided with a main controller 10 to control the operation of a corresponding number of compressor IPM modules according to the operating mode of the air conditioner and the main controller 10, thereby driving the variable capacity enthalpy increase compressor device 100 to start or operate in a conventional mode or a jet enthalpy increase mode, thereby achieving a large output of the air conditioner to quickly heat up or cool down the indoor environment. At the same time, it can also reduce the vibration of the compressor, reduce the noise of the air conditioner, and achieve low-power, high-efficiency operation of the air conditioner, energy saving and environmental protection.

[0043] It should be noted that air conditioners generally consist of indoor and outdoor units. For example, the outdoor unit's electronic control board (ECB) is typically equipped with functional modules such as an intelligent power module (IPM) that drives the compressor, an IPM that drives the fan, a main control module, and a power supply module. These functional modules are often implemented using discrete or partially integrated circuit modules and distributed across various sections of the E-control PCB. However, due to the E-control board's inherent structure, isolation between strong and weak currents, signal interference prevention, and heat dissipation requirements, the spacing between the functional modules must be within a safe distance. This results in a large E-control board for the outdoor unit, making it difficult to install. Alternatively, these modules are distributed across multiple circuit boards, with jumpers used to establish electrical connections between the main control module and other functional modules, as well as between each other. However, distributing the functional modules across multiple boards results in numerous and long jumpers, which degrades the electrical compatibility (EMC) performance of the appliance. Both E-control board configurations involve a large number of components, complicating assembly of the outdoor unit, increasing production costs, and increasing maintenance costs, hindering the air conditioner's stable operation. More importantly, when the electronic control board is implemented using multiple components, the multiple components themselves have high energy consumption and generate serious heat, resulting in low thermal efficiency of the air conditioner, which is not conducive to the air conditioner achieving energy conservation and emission reduction.

[0044] In order to solve the above problems, the present invention integrates the main controller 10 and multiple compressor IPM modules 20 into one module without the need for wire connection, which can shorten the distance between the main controller 10 and the compressor IPM module and reduce electromagnetic interference caused by too long and too many jumpers. In addition, the integration of the above functional modules in the module can improve the integration of the integrated intelligent power module and realize the integration of multiple compressor drives, thereby reducing the volume of the electric control board and facilitating installation. At the same time, it can also reduce the components of the electric control board, simplify the PCB layout of the electric control board, and effectively reduce the production cost of the air conditioner. The present invention also solves the problem that when the electric control board is implemented with multiple discrete components, there are many components, which makes it difficult to assemble the electric control board when it is assembled to the electrical equipment, and the problem that the power consumption of the electric control board is large and the heat generation is also serious, resulting in low thermal efficiency of the air conditioner, which is not conducive to the air conditioner to achieve energy saving and emission reduction.

[0045] Reference Figure 1 and Figure 2 In one embodiment, when the air conditioner operates in heating mode and the outdoor ambient temperature is lower than a first preset temperature, the main controller 10 controls the plurality of compressor IPM modules to operate simultaneously.

[0046] When the air conditioner operates in cooling mode and the outdoor ambient temperature is greater than a second preset temperature, the main controller 10 controls the multiple compressor IPM modules to operate simultaneously, so that the variable capacity enthalpy increase compressor device 100 is started in a two-cylinder jet enthalpy increase mode.

[0047] In the initial stage of the air conditioner startup, the main controller 10 can control multiple compressor IPM modules 20 to work simultaneously according to the operating mode of the air conditioner and the outdoor ambient temperature, thereby driving the variable capacity enthalpy increasing compressor device 100 to start in a two-cylinder jet enthalpy increasing mode to achieve a large output of the air conditioner, thereby quickly heating or cooling the indoor environment. Of course, in other embodiments, when the air conditioner has a large load demand, the compressor IPM modules work simultaneously to switch the working mode of the variable capacity enthalpy increasing compressor device 100 to a two-cylinder jet enthalpy increasing mode. When the air conditioner load is relatively low, the working mode of the variable capacity enthalpy increasing compressor device 100 can be switched to a single-cylinder jet enthalpy increasing mode to reduce energy consumption. Therefore, the present invention can improve comfort, fully meet user needs, and achieve energy conservation and emission reduction by controlling the operation of the compressor IPM modules. In this embodiment, the first preset temperature and the second preset temperature can be set according to the heat exchange capacity of the air conditioner heat exchanger, and there is no limitation here.

[0048] Reference Figure 1 and Figure 2 In one embodiment, the main controller 10 is further configured to control the operation of part or all of the compressor IPM modules according to the user-set temperature and the indoor ambient temperature in the operating parameters of the air conditioner.

[0049] In this embodiment, the main controller 10 can also control a compressor IPM module to operate according to the user's set temperature, or multiple compressor IPM modules 20 to operate simultaneously. For example, in heating mode, if the indoor ambient temperature is greater than or equal to the user's set temperature, the variable capacity and regenerative heat increasing compressor device 100 is operated in the single-cylinder mode by controlling a compressor IPM module. When the indoor ambient temperature is lower than the user's set temperature and the outdoor ambient temperature is greater than or equal to a first preset temperature, the variable capacity and regenerative heat increasing compressor device 100 is maintained in the single-cylinder mode by controlling a compressor IPM module to operate continuously. When the indoor ambient temperature is lower than the user's set temperature and the outdoor ambient temperature is lower than the first preset temperature, the variable capacity and regenerative heat increasing compressor device 100 is operated in the dual-cylinder mode by controlling multiple compressor IPM modules 20 to operate simultaneously.

[0050] Reference Figure 1 and Figure 2 In one embodiment, the highly integrated intelligent power module further includes:

[0051] The fan IPM module 30 is connected to the third control terminal of the main controller 10 . The fan IPM module 30 is used to drive the fan in the air conditioner to work according to the third control signal output by the main controller 10 .

[0052] In this embodiment, the number of fan IPM modules 30 can be set according to the number of fans in the outdoor unit. The fan IPM module 30 is based on the control of the main controller 10 and is used to control the operation of the fan 200 in the air conditioner according to the control signal output by the main controller 10.

[0053] Reference Figure 1 and Figure 2 In one embodiment, the fan IPM module 30 includes a fan driver chip 31 and a fan power module 32. The multiple signal input terminals of the fan driver chip 31 are correspondingly connected to the third control terminal of the main controller 10, and the multiple output terminals of the fan driver chip 31 are one-to-one connected to the multiple controlled terminals of the fan power module 32.

[0054] In this embodiment, the fan driver chip 31 integrates a corresponding number of drive circuits based on the number of power switching transistors in the power module. A high-voltage side drive unit and a low-voltage side drive unit are provided within the fan driver chip 31. The fan power module 32 integrates multiple power switching transistors. These multiple power switching transistors form a power module. For example, six power switching transistors can form a three-phase power module, or four power switching transistors can form a two-phase inverter bridge circuit. Each power switching transistor can be implemented as a MOS transistor or an IGBT. Multiple power switching transistors form a power module to drive the fan 200.

[0055] Reference Figure 1 and Figure 2 In one embodiment, each of the compressor IPM modules 21, 22 includes a compressor driver chip 211, 221 and a compressor power module 212, 222. The signal input end of the compressor driver chip 211, 221 is connected to the control end of the main controller 10, and the multiple output ends of the compressor driver chip 211, 221 are connected one-to-one to the multiple controlled ends of the compressor power module 212, 222.

[0056] In this embodiment, the outdoor unit is configured with two compressors. The corresponding number of compressor IPM modules is also two, with each compressor IPM module 21, 22 driving one compressor. The compressor driver chips 211, 221 integrate corresponding drive circuits based on the number of phases of the power switches in the compressor power modules 212, 222. The compressor driver chips 211, 221 are equipped with high-side and low-voltage drive units. The compressor power modules integrate multiple power switches, which form a power module. For example, six power switches can form a three-phase power module, or four power switches can form a two-phase inverter bridge circuit. Each power switch can be implemented using a MOS transistor or an IGBT. The multiple power switches form a power block 212, 222. The compressor driver chips 211, 221 output corresponding PWM control signals to turn the corresponding power switches on and off, thereby outputting drive power to operate the compressor.

[0057] Reference Figure 1 and Figure 2 In one embodiment, the compressor IPM module further includes PFC power switches 213 and 223 , and the controlled ends of the PFC power switches 213 and 223 are connected to the output ends of the compressor driving chips 211 and 221 .

[0058] In this embodiment, the PFC power switches 213 and 223 can integrate the PFC circuit, which includes diodes, inductors, and other components, into an advanced intelligent power module. The PFC circuit can be a boost PFC circuit, a buck PFC circuit, or a buck-boost PFC circuit. The PFC circuit adjusts the power factor of the DC power and outputs the adjusted DC power to the power input of the power module 10, enabling each power module to drive its corresponding load. The adjusted DC power can also generate an operating voltage, such as 5V, for control chips, which in turn provides operating voltage for circuit modules such as the main controller 10. The PFC power switches 213 and 223 can be directly driven by control signals from the main controller 10, eliminating the need for a drive circuit for the PFC power switches 213 and 223. The PFC power switches 213 and 223 can also be turned on and off based on drive signals output by the compressor driver chips 211 and 221 to achieve PFC correction.

[0059] Reference Figure 3 In one embodiment, a rectifier bridge 40 is provided between an AC input terminal and power input terminals of the plurality of compressor IPM modules 20 .

[0060] In this embodiment, the rectifier bridge 40 can be implemented by combining four SMD diodes. The rectifier bridge 40 composed of four SMD diodes converts the input AC power into DC power for output. By integrating the rectifier bridge 40 into a highly integrated intelligent power module and installing it together with the main controller 10 and the compressor IPM module 20 on the mounting carrier 100, without the need for wire connection, the distance between the rectifier bridge 40 and the multiple compressor IPM modules 20 can be shortened, and the electromagnetic interference caused by excessively long and excessive jumpers can be reduced. In addition, integrating the above functional modules on a mounting carrier can improve the integration of the integrated intelligent power module and realize the integrated setting of multiple loads, such as fans and compressor drives, thereby reducing the size of the electronic control board and facilitating installation.

[0061] Reference Figure 5 In one embodiment, the highly integrated intelligent power module further comprises:

[0062] A mounting substrate 50, wherein mounting positions are provided on the mounting substrate 50, and the main controller 10 and the plurality of compressor IPM modules 20 are provided on the corresponding mounting positions;

[0063] The packaging shell 60 , in which the mounting substrate 50 , the main controller 10 and the plurality of compressor IPM modules 20 are disposed.

[0064] In this embodiment, the mounting substrate 50 can be implemented as any of an aluminum substrate, an aluminum alloy substrate, a copper substrate, or a copper alloy substrate. The mounting substrate 50 serves as a mounting carrier for the main controller 10 and the IPM modules. The shape of the mounting substrate 50 is determined based on the specific location, number, and size of the main controller 10 and the IPM modules. It can be, but is not limited to, a square shape. A circuit wiring layer is provided on the mounting substrate 50. This circuit wiring layer forms corresponding circuits and mounting locations, i.e., pads, on the mounting substrate 50 for the electronic components in the power device, based on the circuit design of the intelligent power module.

[0065] The mounting substrate 50 may also be implemented as an aluminum nitride ceramic mounting substrate 50 , wherein the aluminum nitride ceramic mounting substrate 50 includes an insulating heat dissipation layer and a circuit wiring layer formed on the insulating heat dissipation layer.

[0066] In this embodiment, the packaging shell 60 can be made of materials such as epoxy resin, aluminum oxide, and thermally conductive filler materials. The thermally conductive filler material can be boron nitride or aluminum nitride. Aluminum nitride and boron nitride have good insulation properties, high thermal conductivity, excellent heat resistance, and thermal conductivity, which makes aluminum nitride and boron nitride have high heat transfer capabilities. By integrating the main controller 10, multi-compressor IPM module 20, and fan IPM module 30 into a single module, the chip can be insulated. At the same time, the highly integrated intelligent power module can be improved. The integration of the integrated intelligent power module can be improved, multiple compressor drives can be integrated, and the EMI performance of the module can be improved.

[0067] The present invention further provides an air conditioner including the highly integrated intelligent power module described above. The detailed structure of the highly integrated intelligent power module can be found in the aforementioned embodiments and will not be further described here. It should be understood that since the highly integrated intelligent power module described above is used in the air conditioner of the present invention, the embodiments of the air conditioner of the present invention include all technical solutions of all embodiments of the highly integrated intelligent power module described above, and the technical effects achieved are identical, so further description is not given here.

[0068] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A highly integrated intelligent power module, applied to an air conditioner having a variable capacity and heat-increasing compressor device, wherein the variable capacity and heat-increasing compressor device comprises a plurality of compressors, characterized in that: The highly integrated intelligent power module includes: a main controller for outputting corresponding control signals according to operating parameters of the air conditioner, wherein the operating parameters of the air conditioner include an operating mode and an outdoor ambient temperature; a plurality of compressor IPM modules, the number of the compressor IPM modules corresponding to the number of compressors of the variable capacity and heat-increasing compressor device; the controlled ends of the plurality of compressor IPM modules are connected one-to-one with the control end of the main controller; the plurality of compressor IPM modules are used to drive the corresponding compressors to operate according to the control signal; The main controller is further configured to control one of the compressor IPM modules to operate, or to control multiple compressor IPM modules to operate simultaneously, according to the control signal; when controlling one of the compressor IPM modules to operate, the compressor IPM module drives one compressor to operate, and the variable volume enthalpy increasing compressor device operates in a single-cylinder jet enthalpy increasing mode or a conventional mode; when controlling multiple compressor IPM modules to operate, the multiple compressor IPM modules respectively drive multiple compressors to operate simultaneously, and the variable volume enthalpy increasing compressor device operates in a dual-cylinder jet enthalpy increasing mode; In the initial stage of the air conditioner startup, when the air conditioner operates in heating mode, when the outdoor ambient temperature is lower than the first preset temperature, the main controller controls the multiple compressor IPM modules to operate simultaneously, so that the variable capacity enthalpy increase compressor device starts in a dual-cylinder jet enthalpy increase mode.

2. The highly integrated intelligent power module according to claim 1, wherein: When the air conditioner operates in cooling mode, when the outdoor ambient temperature is greater than a second preset temperature, the main controller controls the plurality of compressor IPM modules to operate simultaneously.

3. The highly integrated intelligent power module according to claim 1, wherein: The main controller is also used to control the operation of part or all of the multiple compressor IPM modules according to the user-set temperature and indoor ambient temperature in the operating parameters of the air conditioner.

4. The highly integrated intelligent power module according to claim 1, wherein: The highly integrated intelligent power module further includes: The fan IPM module is connected to the third control terminal of the main controller, and is used to drive the fan in the air conditioner to work according to the third control signal output by the main controller.

5. The highly integrated intelligent power module according to claim 4, wherein: The fan IPM module includes a fan driver chip and a fan power module. The multiple signal input terminals of the fan driver chip are correspondingly connected to the third control terminal of the main controller, and the multiple output terminals of the fan driver chip are one-to-one connected to the multiple controlled terminals of the fan power module.

6. The highly integrated intelligent power module according to claim 1, wherein: The number of the compressor IPM modules is two.

7. The highly integrated intelligent power module according to claim 6, wherein: Each of the compressor IPM modules includes a compressor driver chip and a compressor power module. The signal input end of the compressor driver chip is connected to the control end of the main controller, and the multiple output ends of the compressor driver chip are connected one-to-one with the multiple controlled ends of the compressor power module.

8. The highly integrated intelligent power module according to claim 7, wherein: The compressor IPM module further includes a PFC power switch, and a controlled end of the PFC power switch is connected to the output end of the compressor driving chip.

9. The highly integrated intelligent power module according to any one of claims 1 to 8, characterized in that: The highly integrated intelligent power module further includes: A rectifier bridge is provided between an AC input terminal and power input terminals of the plurality of compressor IPM modules.

10. The highly integrated intelligent power module according to any one of claims 1 to 8, characterized in that: The highly integrated intelligent power module also includes: An installation substrate is provided with installation positions, and the main controller and the plurality of compressor IPM modules are arranged on the corresponding installation positions; A packaging shell is provided in which the mounting substrate, the main controller and the plurality of compressor IPM modules are arranged.

11. An air conditioner, characterized in that: Comprising the highly integrated intelligent power module according to any one of claims 1 to 10.

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