Controller assembly and air conditioner

Abstract

The utility model discloses a controller assembly and an air conditioner, and relates to the technical field of air conditioners, the controller assembly comprises a housing, a circuit board and a radiator, the housing is provided with an accommodating cavity and a mounting port communicated with the accommodating cavity; the circuit board is accommodated in the accommodating cavity, and a power device is arranged on the circuit board; and the radiator is mounted at the mounting port, and the radiator and the shell are matched to form a sealed space so as to seal corresponding power devices on the circuit board. The controller assembly provided by the utility model can effectively improve the safety performance of the air conditioner, and solves the problem of heating of a power device caused by electric control sealing at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a controller component and an air conditioner. Background Art

[0002] With the development of air-conditioning technology, the requirements for energy efficiency and environmental protection of air conditioners are gradually increasing. In the field of air-conditioning refrigerants, more and more flammable refrigerants such as R32 and R290 are used as refrigerants. Due to the flammable characteristics of flammable refrigerants such as R32 and R290, the safety of air conditioners during use has attracted much attention, so there are higher requirements for fire and explosion prevention of electronic controls. Existing air-conditioning controllers generally do not adopt protective measures in the air-conditioning cavity. After the flammable refrigerant leaks into the air-conditioning cavity, when the electronic components of the controller are short-circuited or ignited, they are easily in contact with the leaked refrigerant, resulting in safety hazards such as combustion and explosion. Utility Model Content

[0003] The main purpose of the utility model is to provide a controller component and an air conditioner, aiming to improve the safety performance of the air conditioner and solve the heating problem of power devices caused by electric control sealing.

[0004] To achieve the above purpose, the controller component proposed by the utility model includes:

[0005] A housing having a receiving cavity and a mounting opening communicating with the receiving cavity;

[0006] A circuit board is accommodated in the accommodation cavity, and a power device is arranged on the circuit board;

[0007] A heat sink is installed at the installation opening, and the heat sink cooperates with the housing to form a sealed space to seal the corresponding power device on the circuit board.

[0008] In one embodiment, the housing includes a base and a top cover, the base is connected to the top cover to form the accommodating cavity, and the circuit board is disposed on the base and located in the accommodating cavity.

[0009] In one embodiment, the heat sink includes a heat dissipation substrate and heat dissipation fins, the heat dissipation substrate is arranged in the accommodating cavity and is arranged toward the circuit board, one end of the heat dissipation fin extends into the accommodating cavity and is connected to the heat dissipation substrate, and the other end of the heat dissipation fin extends out of the shell through the installation port.

[0010] In one embodiment, the power device includes an active power device and a passive power device; the circuit board includes a first area and a second area arranged along a first direction, the first area is arranged close to a first edge of the circuit board, and the second area is located on a side of the first area away from the first edge, the active power device is arranged in the first area, and the passive power device is arranged in the second area.

[0011] In one embodiment, the heat sink includes a heat dissipation substrate, and one end of the active power device facing away from the circuit board is connected to the heat dissipation substrate;

[0012] The heat dissipation substrate is arranged in the accommodating cavity. The heat dissipation substrate, the housing and the circuit board are enclosed to form the sealed space. The active power device is arranged in the sealed space.

[0013] In one embodiment, the shell forms an air duct, the air duct is provided with an air inlet, and a part of the passive power devices are arranged in the air duct and toward the air inlet.

[0014] In one embodiment, the housing and the circuit board are enclosed to form a containing space, and another part of the passive power devices are arranged in the containing space.

[0015] In one embodiment, the active power device includes a rectifier module, a PFC power module and an IPM power module, the passive power device includes an inductor module and a capacitor module, the input end of the rectifier module is used to connect to an AC power supply, the output end of the rectifier module is connected to the input end of the inductor module, the output end of the inductor module is connected to the input end of the PFC power module, the output end of the PFC power module is connected to the input end of the capacitor module, the output end of the capacitor module is connected to the input end of the IPM power module, and the output end of the IPM power module is used to connect to a load.

[0016] In one embodiment, the first region includes a first sub-region, a second sub-region and a third sub-region arranged along the second direction, the first sub-region is adjacent to the second sub-region, the first sub-region and the third sub-region are separated from the second sub-region, the rectifier module is arranged in the first sub-region, the PFC power module is arranged in the second sub-region, and the IPM power module is arranged in the third sub-region.

[0017] In one embodiment, the second region includes a fourth sub-region and a fifth sub-region arranged along the second direction, the fourth sub-region is adjacent to the fifth sub-region, the inductor module is disposed in the fourth sub-region, and the capacitor module is disposed in the fifth sub-region.

[0018] In one embodiment, the first region includes a first sub-region, a second sub-region and a third sub-region arranged along the second direction, the first sub-region is adjacent to the second sub-region, the first sub-region and the third sub-region are separated from the second sub-region, the rectifier module is arranged in the first sub-region, the PFC power module is arranged in the second sub-region, and the IPM power module is arranged in the third sub-region; the second region includes a fourth sub-region and a fifth sub-region arranged along the second direction, the fourth sub-region is adjacent to the fifth sub-region, the inductor module is arranged in the fourth sub-region, the capacitor module is arranged in the fifth sub-region, the first sub-region is adjacent to the fourth sub-region, and the second sub-region is adjacent to the fifth sub-region.

[0019] In one embodiment, the output end of the rectifier module is arranged on a side of the first sub-region adjacent to the fourth sub-region, the input end and the output end of the inductor module are respectively arranged on a side of the fourth sub-region adjacent to the first sub-region, the input end and the output end of the PFC power module are respectively arranged on a side of the second sub-region adjacent to the fifth sub-region, and the input end and the output end of the capacitor module are respectively arranged on a side of the fifth sub-region adjacent to the second sub-region.

[0020] In addition, to achieve the above-mentioned purpose, the utility model also provides an air conditioner, including the controller assembly as described above.

[0021] In the technical solution provided by the utility model, by sealing the circuit board and power device of the air conditioner in the accommodating cavity of the shell, when the flammable refrigerant leaks into the cavity of the air conditioner, the shell can isolate the power device from the flammable refrigerant in the cavity, avoiding safety hazards when the power device has short circuit, ignition, etc. In order to solve the heat dissipation problem after the power device is sealed, the technical solution of the utility model is to set a mounting port on the shell, install the radiator on the mounting port, and the radiator and the shell cooperate to form a sealed space, and the corresponding power device on the circuit board is sealed in the sealed space. In this way, the heat generated by the power device when working can be conducted to the radiator through the sealed space, and dissipated to the external environment through the radiator, avoiding excessive heat from accumulating in the sealed space and affecting the working performance of the power device. At the same time, the sealed space can ensure that the power device is always isolated from the flammable refrigerant in the cavity of the air conditioner, reducing the probability of short circuit, ignition, etc. of the power device, and improving the safety performance of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of a controller component provided by the utility model;

[0024] Figure 2 A schematic diagram of the structure of another embodiment of the controller assembly provided by the utility model;

[0025] Figure 3 A schematic diagram of the layout of components of an embodiment of a controller assembly provided by the utility model;

[0026] Figure 4 A hardware circuit topology diagram of an embodiment of a controller component provided by the utility model;

[0027] Figure 5 This is a schematic diagram of the layout of components of another embodiment of the controller assembly provided by the utility model.

[0028] Description of Figure Numbers:

[0029] 100. Controller component; 1. Shell; 11. Base; 12. Top cover; 13. Air duct; 131. Air inlet; 132. Mounting port; 2. Circuit board; 21. First area; 211. First sub-area; 212. Second sub-area; 213. Third sub-area; 22. Second area; 221. Fourth sub-area; 222. Fifth sub-area; 23. Third area; 231. Sixth sub-area; 232. Seventh sub-area; 24. Fourth area; 241. Eighth sub-area; 242. Ninth sub-area; 243. Tenth sub-area; 3. Power device; 31. Active power device; 32. Passive power device; 4. Radiator; 41. Heat dissipation substrate; 42. Heat dissipation fins.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] With the development of air-conditioning technology, the requirements for energy efficiency and environmental protection of air conditioners are gradually increasing. In the field of air-conditioning refrigerants, more and more flammable refrigerants such as R32 and R290 are used as refrigerants. Due to the flammable characteristics of flammable refrigerants such as R32 and R290, the safety of air conditioners during use has attracted much attention, so there are higher requirements for fire and explosion prevention of electronic controls. Existing air-conditioning controllers generally do not adopt protective measures in the air-conditioning cavity. After the flammable refrigerant leaks into the air-conditioning cavity, when the electronic components of the controller are short-circuited or ignited, they are easily in contact with the leaked refrigerant, resulting in safety hazards such as combustion and explosion.

[0035] The utility model proposes a controller assembly 100, which aims to improve the safety performance of the air conditioner and solve the heating problem of the power device 3 caused by the electric control seal.

[0036] See also Figure 1 and Figure 2In one embodiment of the utility model, the controller assembly 100 may include but is not limited to a housing 1 and a circuit board 2. The housing 1 has a receiving cavity. The circuit board 2 is installed in the receiving cavity, and a power device 3 is arranged on the circuit board 2. When the flammable refrigerant leaks into the cavity of the air conditioner, the housing 1 can isolate the corresponding power device 3 on the circuit board 2 from the flammable refrigerant in the cavity, avoiding safety hazards when the power device 3 is short-circuited or ignited, thereby improving the safety performance of the air conditioner.

[0037] In order to solve the heat dissipation problem after the power device 3 is sealed, the controller assembly 100 of the utility model also includes a heat sink 4. To achieve the installation of the heat sink 4, the housing 1 is provided with an installation port 132 connected to the accommodating cavity. The heat sink 4 is installed at the installation port 132, specifically, one end of the heat sink 4 extends into the housing 1, and the other end of the heat sink 4 extends out of the housing 1 through the installation port 132, and the outer periphery of the heat sink 4 is adapted to be installed with the edge of the installation port 132. Among them, the end of the heat sink 4 extending out of the housing 1 cooperates with the housing 1 to form a sealed space, and the sealed space is used to seal the corresponding power device 3 on the circuit board 2.

[0038] Through the above-mentioned arrangement, the heat generated by the power device 3 during operation is conducted to the radiator 4 through the sealed space, and further dissipated to the external environment through the radiator 4, thereby avoiding excessive heat accumulation in the sealed space and affecting the working performance of the power device 3 itself, thereby improving the heat dissipation effect of the power device 3. At the same time, since a sealed space is set up, the power device 3 is always isolated from the flammable refrigerant in the cavity of the air conditioner, which can reduce the probability of short circuit, ignition, etc. of the power device 3, thereby improving the safety performance of the air conditioner.

[0039] In the technical solution provided by the utility model, by sealing the circuit board 2 and the power device 3 of the air conditioner in the accommodating cavity of the housing 1, when the flammable refrigerant leaks into the cavity of the air conditioner, the housing 1 can isolate the power device 3 from the flammable refrigerant in the cavity, avoiding safety hazards when the power device 3 is short-circuited, ignited, etc. In order to solve the heat dissipation problem after the power device 3 is sealed, the technical solution of the utility model is to set a mounting port 132 on the housing 1, install the radiator 4 on the mounting port 132, and the radiator 4 cooperates with the housing 1 to form a sealed space, and the corresponding power device 3 on the circuit board 2 is sealed in the sealed space. In this way, the heat generated by the power device 3 when working can be conducted to the radiator 4 through the sealed space, and dissipated to the external environment through the radiator 4, avoiding excessive heat from accumulating in the sealed space and affecting the working performance of the power device 3. At the same time, the sealed space can ensure that the power device 3 is always isolated from the flammable refrigerant in the cavity of the air conditioner, reducing the probability of short-circuiting, igniting, etc. of the power device 3, and improving the safety performance of the air conditioner.

[0040] There are many forms of implementation of the housing 1. In the embodiment of the present utility model, please refer to Figure 2 The housing 1 includes a base 11 and a top cover 12, the base 11 and the top cover 12 are connected to form a receiving cavity, and the top cover 12 is provided with a mounting opening 132. The circuit board 2 is mounted on the base 11 and is arranged toward the base 11. That is, the side of the circuit board 2 facing the base 11 is attached to the base 11, so that the receiving cavity can have more space to accommodate the power device 3, thereby improving the convenience of setting the power device 3.

[0041] Optionally, the connection between the base 11 and the top cover 12 can be a fixed connection, such as welding, or a detachable connection, such as snap-fitting. In the embodiment of the utility model, the base 11 and the top cover 12 are snap-fitted and then fixed by fasteners such as screws. Through the above connection method, the sealing performance of the accommodating cavity can be effectively improved, and substances in the external environment can be prevented from entering the accommodating cavity from the gap between the base 11 and the top cover 12, thereby improving the service life of the device in the accommodating cavity.

[0042] There are many ways to implement the radiator 4. Figure 2 The heat sink 4 includes a heat sink substrate 41 and heat sink fins 42. The heat sink substrate 41 is disposed in the accommodation cavity and is disposed toward the circuit board 2. One end of the heat sink fin 42 extends into the accommodation cavity and is connected to the heat sink substrate 41. The other end of the heat sink fin 42 extends out of the housing 1 through the mounting opening 132. The heat generated by the power device 3 during operation is conducted to the heat sink substrate 41, further conducted to the heat sink fins 42 through the heat sink substrate 41, and finally dissipated to the external environment through the heat sink fins 42, thereby achieving heat dissipation of the power device 3.

[0043] There are many ways to make and lay out the power device 3. Figure 3 , the power device 3 includes an active power device 31 and a passive power device 32. The active power device 31 may include but is not limited to a rectifier module, a PFC power module, and an IPM power module, etc., and the passive power device 32 may include but is not limited to an inductor module and a capacitor module, etc. In order to reasonably layout the above-mentioned active power components and passive power devices 32 and reduce the volume of the controller component 100, the circuit board 2 of the embodiment of the utility model includes a first area 21 and a second area 22 arranged along a first direction, and the first direction is the length direction of the circuit board 2. The first area 21 is arranged near the first edge of the circuit board 2 relative to the second area 22, and the second area 22 is located on the side of the first area 21 away from the first edge. The active power device 31 is installed in the first area 21, and the passive power device 32 is installed in the second area 22.

[0044] Based on the above layout, in order to achieve heat dissipation of the active power device 31, in the embodiment of the present utility model, refer to Figure 2 and Figure 3 The top cover 12 has a top wall and a side wall connected to the top wall. The heat dissipation substrate 41, the side wall and the circuit board 2 enclose a sealed space, and the active power device 31 is arranged in the sealed space, and the end of the active power device 31 away from the circuit board 2 is connected to the heat dissipation substrate 41 through a solder foot. In this way, the heat generated by the active power device 31 during operation can be quickly transferred to the heat dissipation substrate 41, and then transferred to the heat dissipation fins 42 through the heat dissipation substrate 41, and finally transferred to the external environment through the heat dissipation fins 42, so as to achieve heat dissipation of the active power device 31.

[0045] Since the inductor module in the passive power device 32 includes an inductor coil, the inductor coil cannot be mounted on the heat dissipation substrate 41 through solder pins. Therefore, in order to achieve heat dissipation of the inductor module, in the embodiment of the present utility model, refer to Figure 1 and Figure 2 The top cover 12 is formed with an air duct 13, and the air duct 13 is provided with an air inlet 131. The inductor module is installed in the air duct 13 and is arranged toward the air inlet 131. Cold air enters the air duct 13 from the air inlet 131, and carries the heat generated by the inductor module when it is working to the radiator 4, which further dissipates the heat to the external environment, thereby achieving heat dissipation of the inductor module.

[0046] In order to seal the passive power devices 32 except the inductor module, in the embodiment of the utility model, the top cover 12 and the circuit board 2 are enclosed to form a housing space, and the passive power devices 32 except the inductor module are arranged in the housing space. In this way, the housing space can ensure that the passive power devices except the inductor module are always isolated from the flammable refrigerant in the cavity of the air conditioner, reduce the probability of short circuit, ignition, etc. of the passive power devices except the inductor module, and improve the safety performance of the air conditioner.

[0047] In one embodiment of the present invention, please refer to Figure 3 and Figure 4 The active power device 31 includes a rectifier module, a PFC power module and an IPM power module. The passive power device 32 includes an inductor module and a capacitor module.

[0048] The rectifier module can be implemented by one or more rectifier bridges. In this embodiment, the rectifier module is implemented by two rectifier bridges, which are the first rectifier bridge DB1 and the second rectifier bridge DB2. The first ends of the first rectifier bridge DB1 and the second rectifier bridge DB2 are respectively connected to the AC power input interfaces ACL and ACN of the controller component 100, and are used to receive external AC power through the AC power input interfaces ACL and ACN, and convert the AC power into DC power for output;

[0049] The inductor module can be implemented by one or more inductors. In this embodiment, the inductor module is implemented by two inductors. The two inductors are respectively a first inductor L1 and a second inductor L2. The common end of the first end of the first inductor L1 and the second inductor L2 is connected to the first common end of the second end of the first rectifier bridge DB1 and the second rectifier bridge DB2 to prevent the AC power from passing through and allow the DC power to pass through smoothly;

[0050] The PFC power module can be implemented by using one or more power switches and fast recovery diodes. In this embodiment, the PFC power module is implemented by using two power switches and two fast recovery diodes. The two power switches are respectively a first power switch IGBT-1 and a second power switch IGBT-2; the two fast recovery diodes are respectively a first fast recovery diode FRD-1 and a second fast recovery diode FRD-2. The first end of the first fast recovery diode FRD-1 is connected to the second end of the first inductor L1, the common end of the first end of the first fast recovery diode FRD-1 and the second end of the first inductor L1 is connected to the first end of the first power switch IGBT-1, and the second end of the first power switch IGBT-1 is connected to the second common end of the first rectifier bridge DB1 and the second rectifier bridge DB2 through the resistor R1; the first end of the second fast recovery diode FRD-2 is connected to the second end of the second inductor L2, the common end of the first end of the second fast recovery diode FRD-2 and the second end of the second inductor L2 is connected to the first end of the second power switch IGBT-2, and the second end of the second power switch IGBT-2 is connected to the second common end of the second end of the first rectifier bridge DB1 and the second rectifier bridge DB2 through the resistor R2. The PFC power module adjusts the power factor of the DC output by the rectifier module to reduce reactive current, thereby reducing losses in the circuit;

[0051] The capacitor module can be implemented by one or more capacitors. In this embodiment, the capacitor module includes a first capacitor E1 and a second capacitor E2. The first end of the first capacitor E1 is connected to the common end of the first fast recovery diode FRD-1 and the second end of the second fast recovery diode FRD-2, and the first end of the second capacitor E2 is connected to the second common end of the first rectifier bridge DB1 and the second rectifier bridge DB2. The capacitor module can filter out low-frequency interference in direct current to ensure stable operation of the circuit;

[0052] The IPM power module includes a compressor power module IPM1 and a fan power module IPM2. The first common end of the compressor power module IPM1 and the fan power module IPM2 is connected to the second end of the first capacitor E1, and the second common end of the compressor power module IPM1 and the fan power module IPM2 is connected to the second end of the second capacitor E2. The PFC power module adjusts the power factor of the input direct current, and the adjusted direct current can be output to the compressor power module IPM1 and the fan power module IPM2 through the first capacitor E1 and the second capacitor E2, so that the compressor power module IPM1 drives the compressor to work, and the fan power module IPM2 drives the fan to work.

[0053] In order to reasonably arrange the modules related to the active power device 31 and reduce the volume of the controller assembly 100, in the embodiment of the present utility model, please refer to Figure 3 The first area 21 of the circuit board 2 includes a first sub-area 211, a second sub-area 212 and a third sub-area 213 arranged along the second direction, the first sub-area 211 is adjacent to the second sub-area 212, the first sub-area 211 and the third sub-area 213 are separated from the second sub-area 212, the rectifier module is arranged in the first sub-area 211, the PFC power module is arranged in the second sub-area 212, and the IPM power module is arranged in the third sub-area 213.

[0054] Similarly, in order to reasonably layout the modules related to the passive power device 32, the volume of the controller assembly 100 is compressed in the height direction. In the embodiment of the present utility model, please refer to Figure 3 The second area 22 of the circuit board 2 includes a fourth sub-area 221 and a fifth sub-area 222 arranged along the second direction, the fourth sub-area 221 and the fifth sub-area 222 are arranged adjacent to each other, the inductor module is arranged in the fourth sub-area 221, and the capacitor module is arranged in the fifth sub-area 222.

[0055] According to the above content, the output end of the rectifier module is connected to the input end of the inductor module, the output end of the inductor module is connected to the input end of the PFC power module, the output end of the PFC power module is connected to the input end of the capacitor module, and the output end of the capacitor module is connected to the input end of the IPM power module. Based on the above connection relationship and device layout, in the embodiment of the utility model, please refer to Figure 3, the first sub-region 211 is adjacent to the fourth sub-region 221, and the second sub-region 212 is adjacent to the fifth sub-region 222. That is, the position of the rectifier module is arranged corresponding to the position of the inductor module along the first direction, and the position of the FPC power module is arranged corresponding to the position of the capacitor module along the first direction, so that the lines between the rectifier module and the inductor module, and between the PFC power module and the capacitor module can be simplified, and the volume of the controller component 100 can be reduced.

[0056] In one embodiment of the present utility model, please refer to Figure 3 , the output end of the rectifier module is arranged at a side adjacent to the first sub-region 211 and the fourth sub-region 221, the input end and the output end of the inductor module are arranged at a side adjacent to the fourth sub-region 221 and the first sub-region 211, the input end and the output end of the PFC power module are arranged at a side adjacent to the second sub-region 212 and the fifth sub-region 222, and the input end and the output end of the capacitor module are arranged at a side adjacent to the fifth sub-region 222 and the second sub-region 212. In this way, the cables between the rectifier module and the inductor module, between the inductor module and the FPC power module, between the FPC power module and the capacitor module, and between the capacitor module and the IPM power module can be further shortened, which simplifies the connection between different power modules as a whole and reduces the volume of the controller component 100.

[0057] In one embodiment of the present utility model, please refer to Figure 5 In addition to the active power device 31 and the passive power device 32 mentioned above, the power device 3 also includes a drive circuit, a fan interface FM1, a compressor interface COMP, a main control circuit, a switching power supply circuit SMPS, a filter circuit ACL, a solenoid valve interface, a heating belt interface, a communication interface and a power input interface ACL, ACN.

[0058] The drive circuit includes a compressor drive circuit and a fan drive circuit; wherein the compressor drive circuit includes a compressor drive MCU, the compressor drive MCU is connected to the compressor power module IPM1, the compressor power module IPM1 is connected to the compressor interface COMP, the compressor interface COMP is used to connect to the compressor of the air conditioner, and the compressor drive MCU is used to control the compressor power module IPM1 to drive the compressor to work; the fan drive circuit includes a fan drive MCU, the fan drive MCU is connected to the fan power module IPM2, the fan power module IPM2 is connected to the fan interface FM1, the fan interface FM1 is used to connect to the fan of the air conditioner, and the fan drive MCU is used to control the fan power module IPM2 to drive the fan to work;

[0059] The main control circuit includes a main control MCU, which is connected to the compressor drive MCU and the fan drive MCU respectively to control the operation of the compressor drive MCU and the fan drive MCU;

[0060] The main control MCU is also equipped with an electronic expansion valve circuit and interface to automatically adjust the expansion of the refrigerant liquid and control the cooling capacity and air outlet temperature of the air conditioner. The main control MCU is also equipped with sensor circuits and interfaces, such as temperature sensor circuits and interfaces. The temperature sensor circuits and interfaces can accurately measure and monitor the temperature, so that the air conditioner can automatically adjust the operating state according to the set temperature requirements to ensure that the indoor temperature remains within a comfortable range;

[0061] The switching power supply circuit SMPS mainly converts AC power into DC power to supply power to the air conditioner;

[0062] The function of the filter circuit ACL is to reduce the pulsating component in the rectified output voltage to convert it into a pulsating DC voltage;

[0063] The solenoid valve interface is used to connect the solenoid valve. The function of the solenoid valve is to adjust the flow rate of refrigerant to achieve the effect of adjusting the cooling capacity of the air conditioner.

[0064] The communication interface is used to connect to the terminal so that the air conditioner can establish a communication connection with the terminal, making it convenient for users to control the air conditioner through the terminal and improving the user experience;

[0065] The power input interfaces ACL and ACN are used to connect to an AC power source and input the AC power source to the rectifier module of the active power device 31 .

[0066] In order to reasonably layout the above-mentioned devices, the circuit board 2 includes a third area 23 and a fourth area 24 in addition to the first area 21 and the second area 22. The second area 22 and the third area 23 are arranged in sequence along the second direction, and the first area 21, the second area 22 and the fourth area 24 are arranged in sequence along the first direction. Among them, the first direction is the length direction of the circuit board 2, and the second direction is the width direction of the circuit board 2. The drive circuit, the fan interface FM1, the compressor interface COMP and the switch power supply circuit SMPS are separately arranged in the third area 23. At this time, the drive circuit, the fan interface FM1, the compressor interface COMP and the switch power supply circuit SMPS are arranged close to the compressor power module IPM1 and the fan power module IPM2, which can shorten the connection lines between the fan interface FM1 and the fan power module IPM2, and between the compressor interface COMP and the compressor power module IPM1; the main control circuit, the filter circuit ACL, the solenoid valve interface, the heating belt interface, the communication interface and the power input interface ACL, ACN are separately arranged in the fourth area 24.

[0067] Based on the above layout, in order to further divide the related devices of the third area 23, the third area 23 includes a sixth sub-area 231 and a seventh sub-area 232, and the sixth sub-area 231 and the seventh sub-area 232 are arranged along the first direction. The compressor interface COMP and the fan interface FM1 are separately arranged in the sixth sub-area 231, and are arranged in sequence along the second direction; the switching power supply circuit SMPS and the drive circuit are separately arranged in the seventh sub-area 232, and are arranged in sequence along the second direction.

[0068] Similarly, in order to further divide the related devices of the fourth area 24, the fourth area 24 includes an eighth sub-area 241, a ninth sub-area 242 and a tenth sub-area 243. The eighth sub-area 241, the ninth sub-area 242 and the tenth sub-area 243 are arranged in sequence along the second direction. The filter circuit ACL and the power input interfaces ACL and ACN are respectively arranged in the eighth sub-area 241 and arranged in sequence along the first direction; the solenoid valve interface, the heating belt interface and the communication interface are respectively arranged in the ninth sub-area 242 and arranged in sequence along the first direction; the main control circuit is arranged in the tenth sub-area 243.

[0069] The utility model also proposes an air conditioner, which includes a controller component 100. The specific structure of the controller component 100 refers to the above embodiment. Since the air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0070] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A controller component, characterized in that: include: A housing having a receiving cavity and a mounting opening communicating with the receiving cavity; A circuit board is accommodated in the accommodation cavity, and a power device is arranged on the circuit board; A heat sink is installed at the installation opening, and the heat sink cooperates with the housing to form a sealed space to seal the corresponding power device on the circuit board.

2. The controller assembly according to claim 1, wherein: The shell comprises a base and a top cover, wherein the base is connected to the top cover to form the accommodating cavity, and the circuit board is arranged on the base and located in the accommodating cavity.

3. The controller assembly according to claim 1, characterized in that The radiator includes a heat dissipation substrate and heat dissipation fins. The heat dissipation substrate is arranged in the accommodating cavity and is arranged toward the circuit board. One end of the heat dissipation fin extends into the accommodating cavity and is connected to the heat dissipation substrate, and the other end of the heat dissipation fin extends out of the shell through the installation port.

4. The controller assembly according to claim 1, wherein: The power devices include active power devices and passive power devices; the circuit board includes a first area and a second area arranged along a first direction, the first area is arranged close to a first edge of the circuit board, and the second area is located on a side of the first area away from the first edge, the active power devices are arranged in the first area, and the passive power devices are arranged in the second area.

5. The controller assembly according to claim 4, characterized in that The heat sink comprises a heat dissipation substrate, and one end of the active power device facing away from the circuit board is connected to the heat dissipation substrate; The heat dissipation substrate is arranged in the accommodating cavity. The heat dissipation substrate, the housing and the circuit board are enclosed to form the sealed space. The active power device is arranged in the sealed space.

6. The controller assembly of claim 4, wherein: The shell is formed with an air duct, and the air duct is provided with an air inlet. A part of the passive power devices is arranged in the air duct and is arranged toward the air inlet.

7. The controller assembly of claim 6, wherein: The housing and the circuit board are enclosed to form an accommodating space, and another part of the passive power devices is arranged in the accommodating space.

8. The controller assembly of claim 4, wherein: The active power device includes a rectifier module, a PFC power module and an IPM power module, and the passive power device includes an inductor module and a capacitor module. The input end of the rectifier module is used to connect to an AC power supply, the output end of the rectifier module is connected to the input end of the inductor module, the output end of the inductor module is connected to the input end of the PFC power module, the output end of the PFC power module is connected to the input end of the capacitor module, the output end of the capacitor module is connected to the input end of the IPM power module, and the output end of the IPM power module is used to connect to a load.

9. The controller assembly of claim 8, wherein: The first region includes a first sub-region, a second sub-region and a third sub-region arranged along a second direction, the first sub-region is adjacent to the second sub-region, the first sub-region and the third sub-region are separated by the second sub-region, the rectifier module is arranged in the first sub-region, the PFC power module is arranged in the second sub-region, and the IPM power module is arranged in the third sub-region.

10. The controller assembly of claim 8, wherein: The second region includes a fourth sub-region and a fifth sub-region arranged along the second direction, the fourth sub-region is adjacent to the fifth sub-region, the inductor module is arranged in the fourth sub-region, and the capacitor module is arranged in the fifth sub-region.

11. The controller assembly of claim 8, wherein: The first region includes a first sub-region, a second sub-region and a third sub-region arranged along the second direction, the first sub-region is adjacent to the second sub-region, the first sub-region and the third sub-region are arranged with the second sub-region spaced apart, the rectifier module is arranged in the first sub-region, the PFC power module is arranged in the second sub-region, and the IPM power module is arranged in the third sub-region; the second region includes a fourth sub-region and a fifth sub-region arranged along the second direction, the fourth sub-region is adjacent to the fifth sub-region, the inductor module is arranged in the fourth sub-region, the capacitor module is arranged in the fifth sub-region, the first sub-region is adjacent to the fourth sub-region, and the second sub-region is adjacent to the fifth sub-region.

12. The controller assembly of claim 11, wherein: The output end of the rectifier module is arranged on a side of the first sub-region adjacent to the fourth sub-region, the input end and the output end of the inductor module are respectively arranged on a side of the fourth sub-region adjacent to the first sub-region, the input end and the output end of the PFC power module are respectively arranged on a side of the second sub-region adjacent to the fifth sub-region, and the input end and the output end of the capacitor module are respectively arranged on a side of the fifth sub-region adjacent to the second sub-region.

13. An air conditioner, characterized in that: Comprising a controller assembly as claimed in any one of claims 1 to 12.

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