CN117997144B - Main control drive integrated circuit, controller main board and air conditioning equipment - Google Patents

Abstract

The application relates to a main control drive integrated circuit, a controller main board and air conditioning equipment, wherein a main control loop power supply signal output by a switching power supply is converted into a target power supply signal through a power supply conversion circuit module, and the target power supply signal comprises a chip power supply signal, so that a main control drive chip can output a controller signal to an isolation circuit module based on the chip power supply signal, the controller signal is converted into a line control power supply control signal through the isolation circuit module, an overcurrent detection signal of the line control module is converted into a target detection signal through the isolation circuit module, isolation control of the line control module is realized, and drive output is carried out through a load drive module according to the main control loop power supply signal output by the switching power supply and a drive control signal output by the main control drive chip, thereby realizing integration of main control and drive and effectively simplifying a main board circuit.

Description

Main control drive integrated circuit, controller main board and air conditioning equipment

Technical Field

The application relates to the technical field of air conditioners, in particular to a main control drive integrated circuit, a controller main board and air conditioning equipment.

Background

With the rapid development of air conditioning technology, air conditioning manufacturers have introduced various air conditioning apparatuses, such as multi-split air conditioners.

The multi-split air conditioning system is used as a multi-split air conditioning system, takes a refrigerant as a transmission medium and consists of an indoor unit, an outdoor unit, other accessories and a series of pipelines. In the multi-split air conditioning system, as the functional requirements are more and the factors such as cost control influence, the space of the electric box is smaller and smaller, so that the miniaturization requirement of the size of the controller main board is more and more obvious. The indoor unit of the multi-split air conditioning system mainly relates to a main control part and a fan driving part, and the main control part and the fan driving part are respectively controlled through a main control main chip and a driving main chip. Because some loads of the internal machine can be touched by hands, the main control part and the driving part are separately powered by the isolating transformer at present, and two main power supply conversion appears on the same main board, namely the main control circuit power supply conversion and the driving circuit power supply conversion appear on the same main board, for example, the main control circuit power supply conversion is from 12V voltage to 5V voltage and then from 5V voltage to 3.3V voltage; the drive power supply is firstly converted from 15V to 5V, and then from 5V to 3.3V, so that the repeated power supply conversion circuit for converting 5V to 3.3V appears on the same main board, namely the repeated power supply conversion circuit appears on the main board of the controller of the existing air conditioner.

Disclosure of Invention

The application provides a main control and drive integrated circuit, a controller main board and air conditioning equipment, which are used for solving the problems that the main board circuit is complex and the miniaturization requirement cannot be met due to the fact that a repeated power supply conversion circuit appears on the controller main board of an existing air conditioner.

In a first aspect, an embodiment of the present application provides a master control driving integrated circuit, including: the device comprises a switching power supply, a power supply conversion circuit module, a main control driving chip, an isolation circuit module, a wire controller module and a load driving module;

The switching power supply is used for outputting a power supply signal of the line controller and a power supply signal of the main control loop;

The power supply conversion circuit module is used for converting the main control loop power supply signal into a target power supply signal, and the target power supply signal comprises a chip power supply signal;

The main control driving chip is used for outputting a controller signal to the isolation circuit module based on the chip power supply signal and the target detection signal output by the isolation circuit module;

The isolating circuit module is used for converting an overcurrent detection signal of the wire controller module into the target detection signal and converting the controller signal into a wire controller power supply control signal;

The line controller module is used for outputting the line controller according to the line controller power supply control signal and the line controller power supply signal;

And the load driving module is used for driving and outputting according to the main control loop power supply signal and the driving control signal output by the main control driving chip.

Optionally, the switching power supply includes: an AC-DC power module;

the wire controller output end of the alternating current-to-direct current power supply module is electrically connected with the power supply end of the wire controller module, and the wire controller output end is used for outputting the wire controller power supply signal;

the main loop output end of the alternating current-to-direct current power supply module is electrically connected with the power supply end of the power supply conversion circuit module and the power supply end of the load driving module, and the main loop output end is used for outputting the main control loop power supply signal.

Optionally, the isolation circuit module includes: a first digital isolator, a second digital isolator, and a voltage comparator;

The input end of the first digital isolator is electrically connected with the control output end of the main control driving chip, the output end of the first digital isolator is electrically connected with the power control end of the wire controller module, and the output end of the first digital isolator is used for outputting the wire controller power supply control signal to the wire controller module;

The detection input end of the voltage comparator is electrically connected with the overcurrent detection end of the wire controller module, the output end of the voltage comparator is electrically connected with the input end of the second digital isolator, the output end of the second digital isolator is electrically connected with the detection input end of the main control driving chip, the overcurrent detection end of the wire controller module is used for outputting an overcurrent detection signal of the wire controller module to the voltage comparator, and the output end of the second digital isolator is used for outputting a target detection signal to the main control driving chip.

Optionally, the over-current detection signal of the line controller module is an analog signal;

The voltage comparator is used for converting the analog signal into a digital signal;

The second digital isolator is used for transmitting the digital signal serving as the target detection signal to the main control driving chip.

Optionally, the first digital isolator is specifically configured to receive the controller signal, and transmit the received controller signal to the line controller module as the power supply control signal of the line controller.

Optionally, the wire controller module includes: the wire controller isolates an external power supply, a wire controller overcurrent detection circuit, a wire controller power supply control circuit and an air conditioner internal unit control device;

The power input end of the wire controller isolation machine external power supply is electrically connected with the wire controller output end of the switching power supply, and the wire controller output end of the switching power supply is used for outputting the wire controller power supply signal to the wire controller isolation machine external power supply;

The control end of the wire controller isolator external power supply is electrically connected with the output end of the wire controller power supply control circuit, the input end of the wire controller power supply control circuit is electrically connected with the first end of the isolation circuit module, and the wire controller power supply control circuit is used for transmitting the wire controller power supply control signal to the wire controller isolator external power supply;

the output end of the wire controller isolator external power supply is electrically connected with the air conditioner internal control device, the detection end of the wire controller isolator external power supply is electrically connected with the detection input end of the wire controller overcurrent detection circuit, the detection output end of the wire controller overcurrent detection circuit is electrically connected with the second end of the isolation circuit module, and the wire controller overcurrent detection circuit is used for transmitting the overcurrent detection signal to the isolation circuit module.

Optionally, the ac-dc power module includes a transformer, and a secondary side output end of the transformer is divided into the line controller output end and the main loop output end, and the switching power further includes: an ac filter and an ac input power source;

the input end of the alternating current filter is electrically connected with the output end of the alternating current input power supply, and the output end of the alternating current filter is electrically connected with the primary side input end of the transformer.

Optionally, the target power supply signal further includes an in-machine power supply load power supply signal and a first in-machine load power supply signal;

Wherein, the power conversion circuit module includes: the power supply system comprises a first power supply conversion sub-module, a second power supply conversion sub-module and a third power supply conversion sub-module;

The input end of the first power supply conversion submodule is electrically connected with the output end of the main loop of the switching power supply, and the first power supply conversion submodule is used for converting the main control loop power supply signal into the built-in power supply load power supply signal and outputting the main control loop power supply signal;

The input end of the second power conversion sub-module is electrically connected with the output end of the first power conversion sub-module, and the second power conversion sub-module is used for converting the built-in power supply load power supply signal into the first built-in load power supply signal and outputting the first built-in load power supply signal;

The input end of the third power conversion sub-module is electrically connected with the output end of the second power conversion sub-module, and the third power conversion sub-module is used for converting the first built-in load power supply signal into the chip power supply signal and outputting the chip power supply signal.

In a second aspect, an embodiment of the present application provides a controller motherboard, where the controller motherboard includes the master control driving integrated circuit according to any one of the first aspect of the present application.

In a third aspect, an embodiment of the present application provides an air conditioning apparatus, where the air conditioning apparatus includes the controller motherboard according to the second aspect.

According to the main control and drive integrated circuit, the controller main board and the air conditioner provided by the embodiment of the application, the main control loop power supply signal output by the switch power supply is converted into the target power supply signal through the power supply conversion circuit module, the target power supply signal comprises the chip power supply signal, so that the main control and drive integrated circuit is realized by enabling the main control and drive chip to output the controller signal to the isolation circuit module based on the chip power supply signal and the target detection signal output by the isolation circuit module, the controller signal is converted into the line control power supply control signal through the isolation circuit module, the overcurrent detection signal of the line control module is converted into the target detection signal through the isolation circuit module, the isolation control of the line control module is realized, the line control output is carried out through the line control module according to the line control loop power supply signal output by the switch power supply and the drive control signal output by the main control drive chip, the main control and drive integrated circuit is realized, and the main control and drive circuit are controlled through the same drive chip, the circuit is effectively simplified, the circuit is realized, the circuit is safely isolated, the problem of the main control circuit is not realized, and the repeated main control circuit is not easy, and the problem of the current main board is solved, and the current is not easy, and the problem is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic topology of a controller motherboard circuit of an air conditioner according to the related art;

Fig. 2 is a block diagram of a master control driving integrated circuit according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a master control driving integrated circuit according to an alternative embodiment of the present application;

Fig. 4 is a schematic structural diagram of an ac-dc power module according to an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating connection between an isolation circuit module and a main control driving chip according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of a master control driving integrated circuit according to an example of the present application;

fig. 7 is a schematic structural diagram of a controller motherboard according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an air conditioning apparatus according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

In the related art, a safety isolation area and a thermal area may be divided from a controller main board area of an air conditioner for electrical safety, as shown in fig. 1. The safety isolation area is a main control weak current area and can be controlled by a main control main chip on the controller main board; the thermal area is a driving area, and can be controlled by a driving main chip on a controller main board, the main control area and the driving area can be isolated by a transformer in a switching power supply, and the main control main chip and the driving main chip are isolated by an optical coupler. The 12V-to-5V module is used for converting 12V voltage into 5V voltage and comprises a power supply conversion circuit for converting the 12V voltage into the 5V voltage; the 5V-to-3.3V module is used for converting 5V voltage into 3.3V voltage and comprises a power supply conversion circuit for converting 5V voltage into 3.3V voltage; the 18V-to-15V module is used for converting 18V voltage into 15V voltage and comprises a power supply conversion circuit for converting 18V voltage into 15V voltage; the 15V-to-5V module is used for converting 15V voltage into 5V voltage and comprises a power conversion circuit for converting 15V voltage into 5V voltage. It can be seen that the repeated power conversion circuit for converting from 5V voltage to 3.3V voltage appears on the same controller board of the air conditioner.

In order to solve the problems that in the prior art, a main board circuit is complex and the miniaturization requirement cannot be met due to the fact that a repeated power supply conversion circuit appears on a main board of a controller, the embodiment of the application provides a main control drive integrated circuit, the main board of the controller and air conditioning equipment, and main control drive control integration and main board miniaturization of an air conditioner can be achieved.

Fig. 2 is a block diagram of a master control driving integrated circuit according to an embodiment of the present application. In an embodiment of the application, the master control driving integrated circuit can be applied to an air conditioner, for example, a multi-split air conditioning system to be used as a controller main board of the air conditioner so as to realize driving control of the air conditioner. As shown in fig. 2, the master control driving integrated circuit provided by the embodiment of the application may include: the device comprises a switching power supply, a power supply conversion circuit module, a main control driving chip, an isolation circuit module, a wire controller module and a load driving module; the switch power supply is used for outputting a power signal of the line controller and a power signal of the main control loop so as to supply power for the line controller module through the power signal of the line controller, and simultaneously, the power signal of the main control loop can be used for supplying power for the main control loop of the air conditioner.

In the embodiment of the application, the main control loop of the air conditioner can comprise a power supply conversion circuit module, a main control driving chip and a load driving module. The power supply conversion circuit module is used for converting the main control loop power supply signal into a target power supply signal, and the target power supply signal comprises a chip power supply signal. For example, after the power supply signal of the main control loop is converted into the power supply signal of the chip, the power supply signal of the chip can be output to the main control driving chip by the power supply conversion circuit module so as to supply power for the main control driving chip, and the main control driving chip can work normally. It should be noted that, the chip power signal may refer to a signal for supplying power to the main control driving chip, for example, a voltage signal may be 3.3 volts, which is not particularly limited in the embodiment of the present application.

In addition, the wire controller module in the embodiment of the application can transmit the overcurrent detection signal to the isolation circuit module, so that the isolation circuit module can output the target detection signal to the main control driving chip according to the overcurrent detection signal, and the main control driving chip can output the controller signal to the isolation circuit module based on the chip power supply signal and the target detection signal. The main control driving chip is used for outputting a controller signal to the isolation circuit module based on the chip power supply signal and a target detection signal output by the isolation circuit module, so that the isolation circuit module can output a power supply control signal to the line controller module based on the controller signal, and the control of the line controller module is realized through the power supply control signal of the line controller; the isolating circuit module is used for converting an overcurrent detection signal of the wire controller module into the target detection signal and converting the controller signal into a wire controller power supply control signal; the line controller module is used for outputting the line controller according to the line controller power supply control signal and the line controller power supply signal; the load driving module is used for driving and outputting according to the main control loop power supply signal and the driving control signal output by the main control driving chip.

In summary, the master control driving integrated circuit provided by the embodiment of the application comprises a switch power supply, a power supply conversion circuit module, a master control driving chip, an isolation circuit module, a line controller module and a load driving module, wherein the master control loop power supply signal output by the switch power supply is converted into a target power supply signal through the power supply conversion circuit module, and the target power supply signal comprises a chip power supply signal, so that the master control driving chip can output a controller signal to the isolation circuit module based on the chip power supply signal and the target detection signal output by the isolation circuit module, the controller signal is converted into a line controller power supply control signal through the isolation circuit module, the overcurrent detection signal of the line controller module is converted into a target detection signal through the isolation circuit module, the line controller is output through the line controller module according to the line controller power supply control signal output by the line controller module, and the drive control signal output by the master control driving chip can be driven and output through the load driving module according to the master control loop power supply signal output by the switch power supply module, and the master control chip can realize master control and drive integration, and the master control chip can not be controlled by the same master control chip, so that the master control and the master control circuit can not be realized in a complex air conditioner, and the air conditioner can not realize the realization of the current air conditioner has a more than the current air conditioner.

In an alternative embodiment of the present application, the switching power supply includes: and the alternating current-to-direct current power supply module. As shown in fig. 3, the output end of the line controller of the ac-dc power supply module is electrically connected to the power end of the line controller module, so that the switching power supply can output a power signal of the line controller to the line controller module through the ac-dc power supply module to supply power to the line controller module. The wire controller output end of the alternating current-to-direct current power supply module is used for outputting the wire controller power supply signal. In addition, the main loop output end of the alternating current-to-direct current power supply module is electrically connected with the power end of the power supply conversion circuit module and the power end of the load driving module, so that the switching power supply can output a main control loop power supply signal to the power supply conversion circuit module and the load driving module through the alternating current-to-direct current power supply module so as to supply power for the power supply conversion circuit module and the load driving module, and the purpose of supplying power for the main control loop is achieved.

It can be seen that the main control driving integrated circuit in the embodiment of the application is electrically connected with the power end of the line controller module through the output end of the line controller of the alternating current-to-direct current power module, and is electrically connected with the power end of the power conversion circuit module and the power end of the load driving module through the main loop output end of the alternating current-to-direct current power module, so as to adjust the output of the switching power supply into 2 paths of output, for example, the switching power supply output of the air conditioner can be adjusted into 2 paths of output from the original 3 paths of output (the 3 paths of output are respectively the 18V output of the line controller, the 12V main loop output and the 18V output of the drive). The main loop output end of the alternating current-to-direct current power supply module is used for outputting the main control loop power supply signal.

In an alternative embodiment of the present application, the ac-dc power module includes a transformer, and the secondary side output end of the transformer is divided into the line controller output end and the main loop output end, as shown in fig. 4. The switching power supply in the embodiment of the application can further comprise: an ac filter and an ac input power source; as shown in fig. 3, the input end of the AC filter is electrically connected to the output end of the AC input power source, so that the switching power source may filter the AC power AC provided by the AC input power source through the AC filter, and provide the filtered AC signal to the AC-DC power source module, so as to implement conversion from AC to DC (AC-DC) through the AC-DC power source module. The output end of the alternating current filter is electrically connected with the primary side input end of the transformer, namely, the output end of the alternating current filter is connected with the primary side of the transformer, so that the alternating current-to-direct current power supply module can acquire a filtered alternating current electric signal, and the conversion of the AC-DC is realized based on the acquired alternating current electric signal. Therefore, the output of the switching power supply in the embodiment of the application is adjusted to 2 paths of output from the original 3 paths of output, one path of winding output can be reduced, the volume of the transformer can be further reduced, and the miniaturization of the main board is realized.

In addition, in order to realize circuit safety isolation, the embodiment of the application converts the controller signal output by the main control driving chip into the power supply control signal of the wire controller through the isolation circuit module, transmits the power supply control signal to the wire controller module, and converts the overcurrent detection signal of the wire controller module into the target detection signal through the isolation circuit module, so that the main control driving chip can output the controller signal based on the chip power supply signal and the target detection signal, and the isolation control of the wire controller module is realized, thereby achieving the aim of controlling and isolating the power supply of the wire controller. The line controller module may refer to a module including wired control, and may specifically be used for outputting a signal required to be output by the line controller, for example, the line controller module may output a line controller power supply signal, an overcurrent detection signal, and the like according to a line controller power supply control signal and a line controller power supply signal provided by the switching power supply.

It should be noted that the power supply signal of the wire controller outputted by the wire controller module may be used to supply power to an internal control device such as a wire controller.

In an alternative embodiment of the present application, as shown in fig. 3, the wire controller module includes: the wire controller isolates an external power supply, a wire controller overcurrent detection circuit, a wire controller power supply control circuit and an air conditioner internal unit control device; the power input end of the wire controller isolator external power supply is electrically connected with the wire controller output end of the switch power supply, and the control end of the wire controller isolator external power supply is electrically connected with the output end of the wire controller power supply control circuit, so that the wire controller isolator external power supply can output a wire controller power supply signal to the air conditioner internal control device according to the wire controller power supply signal output by the switch power supply and the power supply control signal output by the wire controller power supply control circuit so as to supply power to the air conditioner internal control device. The wire controller output end of the switching power supply is used for outputting a wire controller power supply signal output by the switching power supply to the wire controller isolator external power supply; the air conditioner indoor unit control device may include an indoor unit control device such as a line controller, which is not limited in this embodiment.

In an embodiment of the present application, the power supply control signal output by the power supply control circuit of the wire controller may be a signal generated by the power supply control circuit of the wire controller based on the power supply control signal of the wire controller output by the isolation circuit module. Specifically, the control end of the wire controller isolator external power supply is electrically connected with the output end of the wire controller power supply control circuit, and the input end of the wire controller power supply control circuit is electrically connected with the first end of the isolation circuit module, so that the wire controller power supply control circuit can generate a power supply control signal based on the wire controller power supply control signal output by the isolation circuit module and can output the power supply control signal to the wire controller isolator external power supply, for example, the wire controller power supply control circuit can transmit the wire controller power supply control signal as a power supply control signal to the wire controller isolator external power supply, and the wire controller isolator external power supply control is realized. The wire controller power supply control circuit is used for transmitting the wire controller power supply control signal to the wire controller isolation machine external power supply.

In an embodiment of the present application, an output end of the external power supply of the wire controller isolator is electrically connected to the control device of the air conditioner, a detection end of the external power supply of the wire controller isolator is electrically connected to a detection input end of the over-current detection circuit of the wire controller, and a detection output end of the over-current detection circuit of the wire controller is electrically connected to a second end of the isolation circuit module, so that the over-current detection circuit of the wire controller can transmit the detected over-current detection signal to the isolation circuit module, and the over-current detection signal of the wire controller module is converted into the target detection signal through the isolation circuit module, so that the main control driving chip can output the controller signal based on the chip power signal and the target detection signal, thereby achieving the control isolation of the wire controller power supply.

The over-current detection signal detected by the over-current detection circuit of the wire controller may be a signal generated by the over-current detection circuit of the wire controller through the over-current detection circuit of the wire controller, for example, the over-current detection signal may be an analog signal generated by the over-current detection circuit of the wire controller through the over-current detection circuit of the wire controller 18V isolated power supply.

The wire controller overcurrent detection circuit in the embodiment of the application is used for transmitting the overcurrent detection signal to the isolation circuit module, so that the isolation circuit module can convert the overcurrent detection signal of the wire controller module into a target detection signal and transmit the target detection signal to the main control driving chip. For example, in the case that the over-current detection circuit of the line controller is the over-current detection circuit of the line controller 18V, a sampling input end of the over-current detection circuit of the line controller 18V may be electrically connected with an external power supply of the main control driving chip, and an over-current detection pin of the over-current detection circuit of the line controller 18V may be electrically connected with the isolation circuit module, so that an analog signal corresponding to the sampling voltage is output through the over-current detection pin and is transmitted to the isolation circuit module, so that the analog signal may be converted into a digital signal through a voltage comparator in the isolation circuit module, and then the digital signal may be input to the main control driving chip through the digital isolator as a target detection signal, thereby realizing over-current detection isolation of the power supply of the line controller 18V.

In an alternative embodiment of the present application, the isolation circuit module may include: a first digital isolator, a second digital isolator, and a voltage comparator. As shown in fig. 5, the input end of the first digital isolator is electrically connected with the control output end of the main control driving chip, and the output end of the first digital isolator is electrically connected with the power control end of the line controller module, so that the first digital isolator can convert the controller signal output by the main control driving chip into a line controller power supply control signal and output the line controller power supply control signal to the line controller module. The output end of the first digital isolator is used for outputting the power supply control signal of the wire controller to the wire controller module.

In an embodiment of the present application, a detection input end of the voltage comparator is electrically connected to an overcurrent detection end of the wire controller module, and an output end of the voltage comparator is electrically connected to an input end of the second digital isolator, so that the voltage comparator can convert an overcurrent detection signal output by the wire controller module into a corresponding target detection signal and transmit the target detection signal to the second digital isolator, so that the target detection signal is transmitted to the main control driving chip through the second digital isolator. The output end of the second digital isolator is electrically connected with the detection input end of the main control driving chip, the overcurrent detection end of the wire controller module is used for outputting an overcurrent detection signal of the wire controller module to the voltage comparator, and the output end of the second digital isolator is used for outputting the target detection signal to the main control driving chip. For example, when the overcurrent detection signal output by the line controller module is an analog signal, the analog signal can be converted into a digital signal by the voltage comparator in the isolation circuit module, and then the digital signal can be used as a target detection signal by the second digital isolator and transmitted to the main control driving chip, so that the power supply overcurrent detection isolation of the line controller is realized. Wherein the voltage comparator is used for converting the analog signal into a digital signal; the second digital isolator is used for transmitting the digital signal serving as the target detection signal to the main control driving chip.

In an optional embodiment of the present application, the first digital isolator is specifically configured to receive the controller signal, and transmit the received controller signal to the line controller module as the line controller power supply control signal, so that the line controller module may perform line controller output according to the line controller power supply control signal and the line controller power supply signal output by the switching power supply, to implement line controller power supply control isolation.

It should be noted that, the target power signal output by the power conversion circuit module may include, in addition to the chip power signal, a power signal that needs to be converted by the power conversion circuit module, for example, the target power signal may also include an in-machine power supply load power signal, an in-machine load power signal, and the like. The target power signal may refer to a power signal that needs to be converted by the power conversion circuit module; the power supply signal of the built-in power supply load refers to a signal for supplying power to the built-in power supply load, for example, in the case that the built-in power supply load is a 12V built-in power supply load of an air conditioner, the power supply signal of the built-in power supply load can be a 12V voltage signal; the in-machine load power supply signal may refer to a signal for supplying power to an in-machine load, for example, in the case that the in-machine load is a 5V in-machine load of an air conditioner, the in-machine load power supply signal may be a 5V voltage signal; and in the case that the in-machine load is a 3.3V in-machine load of an air conditioner, the in-machine load power supply signal may be a 3.3V voltage signal.

In an alternative embodiment of the present application, the in-house load power supply signal may be divided into a first in-house load power supply signal and a second in-house load power supply signal; the voltage of the first in-plane load power supply signal is different from the voltage of the second in-plane load power supply signal, for example, the voltage of the first in-plane load power supply signal may be higher than the voltage of the second in-plane load power supply signal, or the voltage of the first in-plane load power supply signal may be lower than the voltage of the second in-plane load power supply signal.

In one embodiment of the present application, the voltage of the first in-machine load power supply signal is higher than the voltage of the second in-machine load power supply signal, and the voltage of the in-machine power supply load power supply signal is higher than the voltage of the first in-machine load power supply signal, and the voltage of the second in-machine load power supply signal is equal to the voltage of the chip power supply signal, and the power conversion circuit module may include respective power conversion sub-modules connected in series to output the target power supply signals of various voltage values through the respective power conversion sub-modules connected in series.

Optionally, the target power signal in the embodiment of the present application includes: under the condition of chip power supply signals, built-in power supply load power supply signals and first built-in load power supply signals, the power supply conversion circuit module specifically can comprise: the power conversion device comprises a first power conversion sub-module, a second power conversion sub-module and a third power conversion sub-module. As shown in fig. 3, the input end of the first power conversion sub-module is electrically connected with the output end of the main loop of the switching power supply, so that the first power conversion sub-module can convert the main control loop power supply signal into the built-in power supply load power supply signal, and output the built-in power supply load power supply signal to the built-in power supply load and the second power conversion sub-module so as to supply power for the built-in power supply load and the second power conversion sub-module. The first power supply conversion submodule is used for converting the main control loop power supply signal into the built-in power supply load power supply signal and outputting the power supply signal; the input end of the second power conversion sub-module is electrically connected with the output end of the first power conversion sub-module, so that the second power conversion sub-module can convert an in-machine power supply load power supply signal into a first in-machine load power supply signal, and can output the first in-machine load power supply signal to the first in-machine load so as to supply power to the first in-machine load, and can output the first in-machine load power supply signal to the third power conversion sub-module so as to supply power to the third power conversion sub-module. The second power supply conversion submodule is used for converting the built-in power supply load power supply signal into the first built-in load power supply signal and outputting the first built-in load power supply signal; the input end of the third power conversion sub-module is electrically connected with the output end of the second power conversion sub-module, and the third power conversion sub-module is used for converting the first built-in load power supply signal into the chip power supply signal and outputting the chip power supply signal.

As an example of the present application, in the case where the main control loop power supply signal output by the switching power supply is a 15V voltage signal and the line controller power supply signal output by the switching power supply is an 18V voltage signal, as shown in fig. 6, the power conversion circuit module may convert the 15V voltage signal to a 12 voltage signal through the first power conversion sub-module, and output the 12V power supply signal to the 12V in-machine power supply load and the second power conversion sub-module, so as to supply power to the 12V in-machine power supply load and the second power conversion sub-module. The second power conversion sub-module can convert the 12-voltage signal into a 5V voltage signal and output the 5V power signal to the 5V internal load and the third power conversion sub-module so as to supply power for the 5V internal load and the third power conversion sub-module. The third power conversion sub-module converts the 5V voltage signal into a 3.3V voltage signal and outputs the 3.3V voltage signal to the 3.3V internal load and the main control driving chip to supply power for the 3.3V internal load and the main control driving chip, so that the power conversion circuit of the air conditioner can be adjusted to 3 power conversion chips by five power conversion chips, the simplification of a main board circuit is realized, and the miniaturization of the main board is realized. The five power conversion chips are two power conversion chips contained in the original 12V main loop of the power conversion circuit, which is converted from 5V to 3.3V, and three power conversion chips contained in the driving of 18V output, which is converted from 15V to 5V and from 3.3V. The power conversion chip refers to a chip module that can be used to perform voltage conversion.

Specifically, after the main control and the driving main chip are integrated, the area where the main control driving chip is located is the area where the hot ground and the strong electricity are located, namely, the area where the main control driving chip is located is the hot ground area, the line controller and the internal machine control device are places where people can touch, according to the electric safety requirement, the line controller can output and isolate 18V voltage through the transformer winding, the main control driving chip can identify the voltage through the sampling resistor and can output a controller signal to the first digital isolator according to the AD set voltage threshold value, so that the switch of the external power supply of the line controller 18V isolator is controlled according to the AD set voltage threshold value, the external power supply of the line controller 18V isolator can be controlled by abnormal disconnection of the load of the line controller, circuit protection is realized, and further the safe isolation of the human hand touch circuit can be realized.

As shown in fig. 7, an embodiment of the present application provides a controller motherboard, which includes a main control driving integrated circuit, where the main control driving integrated circuit may be the main control driving integrated circuit according to any embodiment of the present application, so that the controller motherboard may convert a main control loop power supply signal output by a switching power supply into a target power supply signal through a power supply conversion circuit module, where the target power supply signal includes a chip power supply signal, so that the main control driving chip may output a controller signal to an isolation circuit module based on the chip power supply signal and a target detection signal output by the isolation circuit module, so as to convert the controller signal into a line controller power supply control signal through the isolation circuit module, and convert an overcurrent detection signal of the line controller module into a target detection signal through the isolation circuit module, thereby implementing isolation control of the line controller module.

In addition, the controller main board in the embodiment of the application can perform the output of the line controller through the line controller module according to the line controller power supply control signal and the line controller power supply signal output by the switch power supply, and can perform the driving output through the load driving module according to the main control loop power supply signal output by the switch power supply and the driving control signal output by the main control driving chip, so that the main control and driving integration is realized, and the main control and driving are controlled by the same main control driving chip, so that the main board circuit can be effectively simplified, the circuit is simplified while the circuit safety isolation is realized, and the problems that the main board circuit is complex and the miniaturization requirement cannot be met due to the occurrence of the repeated power supply conversion circuit of the main board of the controller main board are solved, for example, the problems that the main board circuit is complex and the miniaturization requirement cannot be met due to the occurrence of the repeated power supply conversion circuit of the main board of the controller main board of the traditional air conditioner can be solved.

As shown in fig. 8, an embodiment of the present application provides an air conditioning apparatus including a controller motherboard. The controller motherboard may include the master control driving integrated circuit provided by any one of the foregoing embodiments of the present application, where the master control driving integrated circuit provided by any one of the foregoing embodiments of the present application may be integrated on a motherboard of an air conditioning apparatus to be used as a controller motherboard of the air conditioning apparatus, so as to achieve miniaturization of the motherboard of the air conditioning apparatus.

The motherboard, device embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the related art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method described in the respective embodiments or some parts of the embodiments.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A master control drive integrated circuit, comprising: the device comprises a switching power supply, a power supply conversion circuit module, a main control driving chip, an isolation circuit module, a wire controller module and a load driving module;

The switching power supply is used for outputting a power supply signal of the line controller and a power supply signal of the main control loop;

The power supply conversion circuit module is used for converting the main control loop power supply signal into a target power supply signal, and the target power supply signal comprises a chip power supply signal;

The main control driving chip is used for outputting a controller signal to the isolation circuit module based on the chip power supply signal and the target detection signal output by the isolation circuit module;

The isolating circuit module is used for converting an overcurrent detection signal of the wire controller module into the target detection signal and converting the controller signal into a wire controller power supply control signal;

The line controller module is used for outputting the line controller according to the line controller power supply control signal and the line controller power supply signal;

And the load driving module is used for driving and outputting according to the main control loop power supply signal and the driving control signal output by the main control driving chip.

2. The master drive integrated circuit of claim 1, wherein the switching power supply comprises: an AC-DC power module;

the wire controller output end of the alternating current-to-direct current power supply module is electrically connected with the power supply end of the wire controller module, and the wire controller output end is used for outputting the wire controller power supply signal;

the main loop output end of the alternating current-to-direct current power supply module is electrically connected with the power supply end of the power supply conversion circuit module and the power supply end of the load driving module, and the main loop output end is used for outputting the main control loop power supply signal.

3. The master drive integrated circuit of claim 1, wherein the isolation circuit module comprises: a first digital isolator, a second digital isolator, and a voltage comparator;

The input end of the first digital isolator is electrically connected with the control output end of the main control driving chip, the output end of the first digital isolator is electrically connected with the power control end of the wire controller module, and the output end of the first digital isolator is used for outputting the wire controller power supply control signal to the wire controller module;

The detection input end of the voltage comparator is electrically connected with the overcurrent detection end of the wire controller module, the output end of the voltage comparator is electrically connected with the input end of the second digital isolator, the output end of the second digital isolator is electrically connected with the detection input end of the main control driving chip, the overcurrent detection end of the wire controller module is used for outputting an overcurrent detection signal of the wire controller module to the voltage comparator, and the output end of the second digital isolator is used for outputting a target detection signal to the main control driving chip.

4. The master control drive integrated circuit of claim 3, wherein the over-current detection signal of the line controller module is an analog signal;

The voltage comparator is used for converting the analog signal into a digital signal;

The second digital isolator is used for transmitting the digital signal serving as the target detection signal to the main control driving chip.

5. The master drive integrated circuit of claim 3, wherein,

The first digital isolator is specifically configured to receive the controller signal, and transmit the received controller signal to the line controller module as the power supply control signal of the line controller.

6. The master drive integrated circuit of claim 1, wherein the line controller module comprises: the wire controller isolates an external power supply, a wire controller overcurrent detection circuit, a wire controller power supply control circuit and an air conditioner internal unit control device;

The power input end of the wire controller isolation machine external power supply is electrically connected with the wire controller output end of the switching power supply, and the wire controller output end of the switching power supply is used for outputting the wire controller power supply signal to the wire controller isolation machine external power supply;

The control end of the wire controller isolator external power supply is electrically connected with the output end of the wire controller power supply control circuit, the input end of the wire controller power supply control circuit is electrically connected with the first end of the isolation circuit module, and the wire controller power supply control circuit is used for transmitting the wire controller power supply control signal to the wire controller isolator external power supply;

the output end of the wire controller isolator external power supply is electrically connected with the air conditioner internal control device, the detection end of the wire controller isolator external power supply is electrically connected with the detection input end of the wire controller overcurrent detection circuit, the detection output end of the wire controller overcurrent detection circuit is electrically connected with the second end of the isolation circuit module, and the wire controller overcurrent detection circuit is used for transmitting the overcurrent detection signal to the isolation circuit module.

7. The integrated circuit of claim 2, wherein the ac-to-dc power module comprises a transformer, the secondary side output of the transformer is divided into the line controller output and the main loop output, and the switching power further comprises: an ac filter and an ac input power source;

the input end of the alternating current filter is electrically connected with the output end of the alternating current input power supply, and the output end of the alternating current filter is electrically connected with the primary side input end of the transformer.

8. The master drive integrated circuit of any one of claims 1 to 7, wherein the target power supply signal further comprises an in-machine power supply load power supply signal and a first in-machine load power supply signal;

Wherein, the power conversion circuit module includes: the power supply system comprises a first power supply conversion sub-module, a second power supply conversion sub-module and a third power supply conversion sub-module;

The input end of the first power supply conversion submodule is electrically connected with the output end of the main loop of the switching power supply, and the first power supply conversion submodule is used for converting the main control loop power supply signal into the built-in power supply load power supply signal and outputting the main control loop power supply signal;

The input end of the second power conversion sub-module is electrically connected with the output end of the first power conversion sub-module, and the second power conversion sub-module is used for converting the built-in power supply load power supply signal into the first built-in load power supply signal and outputting the first built-in load power supply signal;

The input end of the third power conversion sub-module is electrically connected with the output end of the second power conversion sub-module, and the third power conversion sub-module is used for converting the first built-in load power supply signal into the chip power supply signal and outputting the chip power supply signal.

9. A controller motherboard, characterized in that it comprises a master drive integrated circuit according to any one of claims 1 to 8.

10. An air conditioning apparatus comprising the controller motherboard of claim 9.