Electric control circuit of air conditioner outdoor unit, electric control heat dissipation device of air conditioner outdoor unit and air conditioner

Abstract

The utility model discloses an air conditioner outdoor unit electric control circuit, an air conditioner outdoor unit electric control heat dissipation device and an air conditioner, and the air conditioner outdoor unit electric control circuit comprises an input filtering module which comprises three AC inductors and three AC capacitors; one ends of the three AC inductors are respectively connected to a three-phase AC power supply, and the other ends of the three AC inductors are respectively connected to one ends of the three AC capacitors; the other ends of the three AC capacitors are connected together; the alternating current input end of the BUCK control module is connected to the input filtering module, the BUCK control module is used for converting the alternating current voltage to obtain direct current voltage of a target voltage value, and the target voltage value is smaller than or equal to a preset voltage value; the output filtering module comprises a DC inductor and a DC capacitor which are connected in series, and the output filtering module is connected with the direct current output end of the BUCK control module; and the load IPM module is connected with the output filtering module. According to the embodiment of the invention, the direct-current voltage of the target voltage value is obtained through the BUCK control module, so that the voltage grade requirement on a post-stage device can be reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an electric control circuit for an air conditioner outdoor unit, an electric control heat dissipation device for an air conditioner outdoor unit and an air conditioner. Background Art

[0002] In related technologies, the three-phase active PFC solution applied to the three-phase air conditioner outdoor unit electronic control can effectively solve the harmonic problem, improve the stability of the electronic control and avoid the pollution of the electronic control to the power grid. However, the three-phase Vienna high-voltage platform, which is mainly used in the three-phase active PFC solution, usually requires the use of devices that can withstand high voltages, which places high requirements on the voltage level of the subsequent devices and brings high costs. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an air conditioner outdoor unit electric control circuit, an air conditioner outdoor unit electric control heat dissipation device and an air conditioner, aiming to reduce the voltage level requirements for the subsequent stage components, thereby reducing the cost.

[0004] In a first aspect, an embodiment of the present application provides an electric control circuit for an air conditioner outdoor unit, comprising:

[0005] An input filter module, comprising three AC inductors and three AC capacitors; one end of the three AC inductors is respectively connected to a three-phase AC power supply, and the other end is respectively connected to one end of the three AC capacitors; the other ends of the three AC capacitors are connected together;

[0006] A BUCK control module, wherein an AC input terminal of the BUCK control module is connected to the input filter module, and the BUCK control module is used to convert the AC voltage to obtain a DC voltage of a target voltage value, wherein the target voltage value is less than or equal to a preset voltage value;

[0007] An output filter module, comprising a DC inductor and a DC capacitor connected in series, wherein the output filter module is connected to a DC output terminal of the BUCK control module;

[0008] A load IPM module is connected to the output filter module.

[0009] According to some embodiments of the present application, the load IPM module includes a compressor IPM and a fan IPM.

[0010] According to some embodiments of the present application, it further includes:

[0011] A freewheeling module, wherein the positive electrode of the freewheeling module is connected to the negative electrode of the DC output terminal of the BUCK control module, and the negative electrode of the freewheeling module is connected to the positive electrode of the DC output terminal of the BUCK control module.

[0012] According to some embodiments of the present application, it further includes:

[0013] An EMC module, the EMC module is located between the three-phase AC power supply and the input filter module;

[0014] A power-on relay module is located between the EMC module and the input filter module.

[0015] According to some embodiments of the present application, it further includes:

[0016] A voltage absorption module is located between the freewheeling module and the output filtering module.

[0017] In a second aspect, an embodiment of the present application provides an electric control heat dissipation device for an air conditioner outdoor unit, characterized in that it includes:

[0018] A circuit board and the air conditioner outdoor unit electric control circuit as described in any one of the first aspects, wherein the air conditioner outdoor unit electric control circuit is arranged on the circuit board;

[0019] A refrigerant radiator, wherein the BUCK control module and the load IPM module are arranged on the refrigerant radiator;

[0020] A refrigerant pipe is connected to the refrigerant radiator.

[0021] According to some embodiments of the present application, the number of the DC inductors is two, the AC capacitor and the two DC inductors are located on the first side of the refrigerant radiator, and the AC capacitor is located between the two DC inductors; both ends of the refrigerant tube are bent and passed over the AC capacitor, or one end of the refrigerant tube is bent and passed over the AC capacitor, and the other end passes between the AC capacitor and the DC inductor.

[0022] According to some embodiments of the present application, the number of the DC inductors is two, the AC capacitor and the two DC inductors are located on the first side of the refrigerant radiator, and the AC capacitor is located on the same side of the two DC inductors; one end of the refrigerant tube is bent and passed over the top of the DC inductor, and the other end passes between the two DC inductors.

[0023] According to some embodiments of the present application, the number of the DC inductor is one, the DC inductor and the AC capacitor are located on a first side of the refrigerant radiator, and the AC capacitor is located on one side of the DC inductor; both ends of the refrigerant tube are bent and passed over the DC inductor.

[0024] In a third aspect, an embodiment of the present application provides an air conditioner, comprising the air conditioner outdoor unit electronic control circuit as described in any one of the first aspect, or comprising the air conditioner outdoor unit electronic control heat dissipation device as described in any one of the second aspect.

[0025] According to some embodiments of the present application, according to the technical scheme of the embodiment of the present application, at least the following beneficial effects are achieved: the present application discloses an air conditioner outdoor unit electronic control circuit, an air conditioner outdoor unit electronic control heat dissipation device and an air conditioner, wherein the air conditioner outdoor unit electronic control circuit comprises: an input filter module, comprising three AC inductors and three AC capacitors; one end of the three AC inductors is respectively connected to a three-phase AC power supply, and the other end is respectively connected to one end of the three AC capacitors; the other ends of the three AC capacitors are connected together; a BUCK control module, wherein the AC input end of the BUCK control module is connected to the input filter module, and the BUCK control module is used to convert the AC voltage to obtain a DC voltage of a target voltage value, wherein the target voltage value is less than or equal to a preset voltage value; an output filter module, comprising a DC inductor and a DC capacitor connected in series, and the output filter module is connected to the DC output end of the BUCK control module; and a load IPM module is connected to the output filter module. The embodiment of the present application obtains a DC voltage of a target voltage value through the BUCK control module, thereby reducing the voltage level requirements for the subsequent devices, thereby reducing costs.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0029] Figure 1 It is a structural schematic diagram of an air conditioner outdoor unit electric control circuit provided by an embodiment of the present application;

[0030] Figure 2 is a structural diagram of a BUCK control module provided by an embodiment of the present application;

[0031] Figure 3 is a structural diagram of a BUCK control module provided in another embodiment of the present application;

[0032] Figure 4 It is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided by an embodiment of the present application;

[0033] Figure 5 is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided by another embodiment of the present application;

[0034] Figure 6 is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided by another embodiment of the present application;

[0035] Figure 7 is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided by another embodiment of the present application;

[0036] Figure 8 is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided by another embodiment of the present application;

[0037] Fig. 9 It is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided in another embodiment of the present application. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0042] In some cases, the three-phase active PFC solution applied to the three-phase air conditioner outdoor unit electronic control can effectively solve the harmonic problem, improve the stability of the electronic control and avoid the pollution of the electronic control to the power grid. However, the three-phase Vienna high-voltage platform, which is mainly used in the three-phase active PFC solution, usually requires the use of devices that can withstand high voltages, which places high requirements on the voltage level of the subsequent devices and brings high costs.

[0043] Based on this, the present application proposes an air conditioner outdoor unit electronic control circuit, an air conditioner outdoor unit electronic control heat dissipation device and an air conditioner, aiming to reduce the voltage level requirements for subsequent devices, thereby reducing costs.

[0044] The following further describes various embodiments of the air conditioner outdoor unit electronic control circuit of the present application in conjunction with the accompanying drawings.

[0045] like Figure 1 As shown, Figure 1 It is a structural schematic diagram of an air conditioner outdoor unit electronic control circuit provided by an embodiment of the present application.

[0046] In one embodiment, the electric control circuit of the air conditioner outdoor unit includes an input filter module 100 , a BUCK control module 200 , an output filter module 300 and a load IPM module 400 .

[0047] Exemplarily, the input filter module 100 includes three AC inductors and three AC capacitors; the first ends of the three AC inductors are respectively connected to the three-phase AC power supply 500, and the second ends are respectively connected to the first ends of the three AC capacitors; the second ends of the three AC capacitors are connected to each other.

[0048] Exemplarily, the AC input end of the BUCK control module 200 is connected to the input filter module 100, and the BUCK control module 200 is used to convert the AC voltage into a DC voltage to obtain a DC voltage of a target voltage value, wherein the target voltage value is less than or equal to a preset voltage value.

[0049] It is understandable that the preset voltage value may be 400 V, or may be a voltage value set according to actual needs. The embodiment of the present application does not specifically limit the preset voltage value.

[0050] Exemplarily, the output filter module 300 includes a DC inductor and a DC capacitor, wherein the DC capacitor is connected in series with the DC inductor, and the output filter module 300 is connected to the DC output terminal of the BUCK control module 200 .

[0051] Exemplarily, the load IPM module 400 is connected to the output filter module 300 .

[0052] It is understandable that the BUCK control module 200 of the embodiment of the present application can convert the AC voltage output by the three-phase AC power supply, thereby outputting a DC voltage of a target voltage value to the load IPM module 400, thereby enabling the load of the IPM module to work.

[0053] Exemplarily, the BUCK control module 200 includes a first bridge arm formed by a first diode and a second diode connected in series, a second bridge arm formed by a third diode and a fourth diode connected in series, a third bridge arm formed by a fifth diode and a sixth diode connected in series, and three bidirectional controllable switches, wherein the first diode D1 and the second diode D2 are connected in series, the third diode D3 and the fourth diode D4 are connected in series, the fifth diode D5 and the sixth diode D6 are connected in series, the three bidirectional controllable switches are connected in parallel to each other, the input filter module 100 is respectively connected to the first ends of the three bidirectional controllable switches, the second ends and the third ends of the three bidirectional controllable switches are respectively connected to the middle of the first diode D1 and the second diode D2, the middle of the third diode D3 and the fourth diode D4, and the middle of the fifth diode D5 and the sixth diode D6, wherein the three bidirectional controllable switches are connected in parallel to each other. The second end and the third end of the controllable switch do not overlap at the positions of the first diode D1 and the second diode D2, the third diode D3 and the fourth diode D4, and the fifth diode D5 and the sixth diode D6. For example, the three bidirectional controllable switches are respectively the first bidirectional controllable switch, the second bidirectional controllable switch and the third bidirectional controllable switch. The first end of the first bidirectional controllable switch is connected to the input filter module 100, and the second end and the third end are respectively connected to the middle of the first diode D1 and the second diode D2. The first end of the second bidirectional controllable switch is connected to the input filter module 100, and the second end and the third end are respectively connected to the middle of the third diode D3 and the fourth diode D4. The first end of the third bidirectional controllable switch is connected to the input filter module 100, and the second end and the third end are respectively connected to the middle of the fifth diode D5 and the sixth diode D6.

[0054] It is worth noting that the BUCK control module 200 of the embodiment of the present application can convert the AC voltage output by the three-phase AC power supply, thereby outputting a DC voltage of the target voltage value to the load IPM module 400, thereby enabling the load of the IPM module to work, thereby reducing the voltage level requirements for the subsequent devices and thereby reducing costs.

[0055] like Figure 2 As shown, Figure 2 It is a structural diagram of a BUCK control module provided in one embodiment of the present application.

[0056] In one embodiment, the BUCK control module 200 includes a first bridge arm formed by a first diode D1 and a second diode D2 connected in series, a second bridge arm formed by a third diode D3 and a fourth diode D4 connected in series, a third bridge arm formed by a fifth diode D5 and a sixth diode D6 connected in series, and three bidirectional controllable switches. The first bridge arm, the second bridge arm, and the third bridge arm are connected in parallel to each other. The input filter module 100 is connected to the midpoint of the first bridge arm, the midpoint of the second bridge arm, and the midpoint of the third bridge arm, respectively. The bidirectional controllable switch includes a first controllable switch and a second controllable switch. One end of the first bridge arm, the second bridge arm, and the third bridge arm are respectively connected to the three first controllable switches. Controlled switches, the other ends of the first bridge arm, the second bridge arm and the third bridge arm are respectively connected to three second controllable switches. For example, the three bidirectional controllable switches are a first bidirectional controllable switch, a second bidirectional controllable switch and a third bidirectional controllable switch. The first bidirectional controllable switch is composed of a first switch T1 and a second switch T2, the second bidirectional controllable switch is composed of a third switch T3 and a fourth switch T4, and the third bidirectional controllable switch is composed of a fifth switch T5 and a sixth switch T6. One end of the first bridge arm is connected to T1, and the other end is connected to T2, one end of the second bridge arm is connected to T3, and the other end is connected to T4, and one end of the third bridge arm is connected to T5, and the other end is connected to T6.

[0057] It is worth noting that the BUCK control module 200 of the embodiment of the present application can convert the AC voltage output by the three-phase AC power supply, thereby outputting a DC voltage of the target voltage value to the load IPM module 400, thereby enabling the load of the IPM module to work, thereby reducing the voltage level requirements for the subsequent devices and thereby reducing costs.

[0058] like Figure 3 As shown, Figure 3 It is a structural diagram of a BUCK control module provided in another embodiment of the present application.

[0059] In one embodiment, the BUCK control module 200 includes a first bridge arm formed by a first diode D1 and a second diode D2 connected in series, a second bridge arm formed by a third diode D3 and a fourth diode D4 connected in series, a third bridge arm formed by a fifth diode D5 and a sixth diode D6 connected in series, and three bidirectional controllable switches. The first diode D1 and the second diode D2 are connected in series, the third diode D3 and the fourth diode D4 are connected in series, and the fifth diode D5 and the sixth diode D6 are connected in series. The three bidirectional controllable switches are connected in parallel to each other. The input filter module 100 is respectively connected to one end of the three bidirectional controllable switches, and the other ends of the three bidirectional controllable switches are respectively connected to the ends of the first diode D1 and the second diode D2. midpoint, the midpoint of the third diode D3 and the fourth diode D4 and the midpoint of the fifth diode D5 and the sixth diode D6, for example, the three bidirectional controllable switches are respectively a first bidirectional controllable switch SA, a second bidirectional controllable switch SB and a third bidirectional controllable switch SC, one end of the first bidirectional controllable switch is connected to the input filter module 100, and the other end is connected to the midpoint of the first diode D1 and the second diode D2, one end of the second bidirectional controllable switch is connected to the input filter module 100, and the other end is connected to the midpoint of the third diode D3 and the fourth diode D4, one end of the third bidirectional controllable switch is connected to the input filter module 100, and the other end is connected to the midpoint of the fifth diode D5 and the sixth diode D6.

[0060] It is worth noting that the BUCK control module 200 of the embodiment of the present application can convert the AC voltage output by the three-phase AC power supply, thereby outputting a DC voltage of the target voltage value to the load IPM module 400, thereby enabling the load of the IPM module to work, thereby reducing the voltage level requirements for the subsequent devices and thereby reducing costs.

[0061] Exemplarily, the load IPM module 400 includes a compressor IPM and a fan IPM.

[0062] It is understandable that the number of fan IPMs can be 1 or 2, and can be set according to actual needs. The embodiment of the present application does not specifically limit it.

[0063] It can be understood that the BUCK control module 200 of the embodiment of the present application can convert the AC voltage output by the three-phase AC power supply, thereby outputting a DC voltage of a target voltage value to the compressor IPM and the fan IPM, thereby enabling the compressor IPM and the fan IPM to work.

[0064] In one embodiment, the air conditioner outdoor unit electronic control circuit further includes a freewheeling module 600 .

[0065] Exemplarily, the positive electrode of the freewheeling module 600 is connected to the negative electrode of the DC output terminal of the BUCK control module 200 , and the negative electrode of the freewheeling module 600 is connected to the positive electrode of the DC output terminal of the BUCK control module 200 .

[0066] It can be understood that, due to the connection between the freewheeling module 600 and the BUCK control module 200 , the normal operation of the BUCK control module 200 can be ensured, and the efficiency and stability can be improved.

[0067] In one embodiment, the air conditioner outdoor unit electronic control circuit further includes an EMC module 700 and a power-on relay module 800 .

[0068] Exemplarily, the EMC module 700 is disposed between the input filter module 100 and the three-phase AC power source.

[0069] Exemplarily, the power-on relay module is disposed between the input filter module 100 and the EMC module 700 .

[0070] It can be understood that the EMC module 700 can effectively suppress electromagnetic interference from the three-phase AC power supply. By setting the EMC module 700 between the input filter module 100 and the three-phase AC power supply, it can be ensured that the power signal entering the circuit is clean and interference-free; in addition, the EMC module 700 can also reduce the electromagnetic radiation generated by the circuit itself, thereby avoiding interference with other devices or systems.

[0071] In one embodiment, the air conditioner outdoor unit electronic control circuit further includes a voltage absorption module 900 .

[0072] Exemplarily, the voltage absorption module 900 is disposed between the output filter module 300 and the freewheeling module 600 .

[0073] It is understandable that, since the voltage absorption module 900 can reduce the voltage stress of the freewheeling module 600 , the freewheeling module 600 can protect the freewheeling module 600 and extend the service life of the freewheeling module 600 .

[0074] Based on the air-conditioner outdoor unit electronic control circuits of the above-mentioned embodiments, various embodiments of the air-conditioner outdoor unit electronic control heat dissipation device of the present application are respectively proposed below.

[0075] like Figure 4 and 5 As shown, Figure 4 is a schematic diagram of the structure of an electric control heat dissipation device for an air conditioner outdoor unit provided by an embodiment of the present application. Figure 5 It is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided in another embodiment of the present application.

[0076] In one embodiment, the air conditioner outdoor unit electronic control heat dissipation device includes a circuit board and the air conditioner outdoor unit electronic control circuit of any one of the above embodiments, a refrigerant radiator 1000 and a refrigerant pipe 1100 .

[0077] Illustratively, the air conditioner outdoor unit electronic control circuit of the embodiment of the present application is installed on a circuit board; the refrigerant radiator 1000, the BUCK control module and the load IPM module 400 are all installed on the refrigerant radiator; and the refrigerant pipe is connected to the refrigerant radiator.

[0078] It is worth noting that the embodiment of the present application can be connected to the refrigerant radiator through the refrigerant pipe, thereby achieving heat dissipation of components in the refrigerant radiator, avoiding performance degradation and damage caused by high temperature, thereby improving the cooling effect of the air-conditioning system and enhancing operational stability.

[0079] In one embodiment, the air conditioner outdoor unit electronically controlled heat dissipation device includes two DC inductors, wherein the two DC inductors and an AC capacitor are arranged on the first side of the refrigerant radiator, and an AC capacitor is arranged between the two DC inductors; both ends of the refrigerant pipe are bent and passed over the AC capacitor.

[0080] It is understandable that since the two DC inductors and AC capacitors may generate heat during operation, by arranging the two DC inductors and AC capacitors on the first side of the refrigerant radiator, both ends of the refrigerant tube are bent to pass over the AC capacitor, thereby helping the two DC inductors and AC capacitors to dissipate heat, thereby improving the heat dissipation effect; in addition, this layout method effectively utilizes the space on the PCB board through carefully designed component placement; in addition, the bending design of the refrigerant tube increases the heat dissipation area and improves the heat dissipation efficiency.

[0081] In one embodiment, the electronically controlled heat dissipation device of the air conditioner outdoor unit includes two DC inductors, wherein the two DC inductors and an AC capacitor are arranged on the first side of the refrigerant radiator, and the AC capacitor is arranged between the two DC inductors; one end of the refrigerant tube is bent and passed over the AC capacitor, and the other end passes between the AC capacitor and the DC inductor.

[0082] It is understandable that since the two DC inductors and AC capacitors may generate heat during operation, by arranging the two DC inductors and AC capacitors on the first side of the refrigerant radiator, one end of the refrigerant tube is bent and passed over the top of the AC capacitor, and the other end passes between the AC capacitor and the DC inductor, thereby helping the two DC inductors and AC capacitors to dissipate heat, thereby improving the heat dissipation effect; in addition, this layout method effectively utilizes the space on the PCB board through carefully designed component placement; in addition, the bending design of the refrigerant tube increases the heat dissipation area and improves the heat dissipation efficiency.

[0083] It can be understood that the refrigerant tube can be bent at one end to pass over the AC capacitor, or both ends can be bent to pass over the AC capacitor. One or both ends of the refrigerant tube can be bent to pass over the AC capacitor according to actual needs. For example, when the AC capacitor is small and there is a position between the AC capacitor and the DC inductor to pass through one end of the refrigerant tube, one end of the AC capacitor is bent to pass over the AC capacitor, and the other end passes between the AC capacitor and the DC inductor; when the AC capacitor is large and the AC capacitor and the DC inductor cannot pass through one end of the refrigerant tube, both ends of the AC capacitor are bent to pass over the AC capacitor. The embodiments of the present application do not impose specific restrictions on this.

[0084] Exemplarily, a DC capacitor is arranged on one side of the voltage absorption module, a BUCK control drive, a compressor interface, and a fan interface are arranged on the second side of the refrigerant radiator, and three AC inductors, a BUCK control and compressor main control circuit, a fan main control circuit, an EMC module, a power-on relay module, and a switching power supply and air conditioning function main control circuit are arranged on the third side of the refrigerant radiator.

[0085] It can be understood that this layout method effectively utilizes the space on the PCB board through carefully designed component placement, achieving miniaturization of the PCB circuit board.

[0086] like Figure 6 and 7 As shown, Figure 6 is a structural schematic diagram of an electric control heat dissipation device for an air conditioner outdoor unit provided by another embodiment of the present application, Figure 7 It is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided in another embodiment of the present application.

[0087] In one embodiment, the air conditioner outdoor unit electronically controlled heat dissipation device includes two DC inductors, wherein the two DC inductors and the AC capacitor are arranged on the first side of the refrigerant radiator, and the AC capacitor is arranged on the same side of the DC inductor; one end of the refrigerant tube is bent and passed over the DC inductor, and the other end passes between the two DC inductors.

[0088] It is understandable that since the two DC inductors and AC capacitors may generate heat during operation, the two DC inductors and AC capacitors are arranged on the first side of the refrigerant radiator; one end of the refrigerant tube is bent and passed over the DC inductor, and the other end passes between the two DC inductors, thereby helping the two DC inductors and AC capacitors to dissipate heat, thereby improving the heat dissipation effect; in addition, this layout method effectively utilizes the space on the PCB board through carefully designed component placement; in addition, the bending design of the refrigerant tube increases the heat dissipation area and improves the heat dissipation efficiency.

[0089] Exemplarily, a DC capacitor is arranged on one side of the voltage absorption module, a BUCK control drive, a compressor interface, and a fan interface are arranged on the second side of the refrigerant radiator, and three AC inductors, a BUCK control and compressor main control circuit, a fan main control circuit, an EMC module, a power-on relay module, and a switching power supply and air conditioning function main control circuit are arranged on the third side of the refrigerant radiator.

[0090] It can be understood that this layout method effectively utilizes the space on the PCB board through carefully designed component placement, achieving miniaturization of the PCB circuit board.

[0091] like Figure 8 and 9 As shown, Figure 8 is a structural schematic diagram of an electric control heat dissipation device for an air conditioner outdoor unit provided by another embodiment of the present application, Fig. 9 It is a structural schematic diagram of an electric-controlled heat dissipation device for an air-conditioning outdoor unit provided in another embodiment of the present application.

[0092] In one embodiment, the air conditioner outdoor unit electronically controlled heat dissipation device includes a DC inductor, wherein the DC inductor and AC capacitor are arranged on the first side of the refrigerant radiator, and the AC capacitor is arranged on one side of the DC inductor; both ends of the refrigerant pipe are bent and passed over the DC inductor.

[0093] It is understandable that since the DC inductor and AC capacitor may generate heat during operation, the DC inductor and AC capacitor are arranged on the first side of the refrigerant radiator; the two ends of the refrigerant tube are bent and passed over the DC inductor to help the DC inductor and AC capacitor dissipate heat, thereby improving the heat dissipation effect; in addition, this layout method effectively utilizes the space on the PCB board through carefully designed component placement; in addition, the bending design of the refrigerant tube increases the heat dissipation area and improves the heat dissipation efficiency.

[0094] Exemplarily, a DC capacitor is arranged on one side of the voltage absorption module, a BUCK control drive, a compressor interface, and a fan interface are arranged on the second side of the refrigerant radiator, and three AC inductors, a BUCK control and compressor main control circuit, a fan main control circuit, an EMC module, a power-on relay module, and a switching power supply and air conditioning function main control circuit are arranged on the third side of the refrigerant radiator.

[0095] It can be understood that this layout method effectively utilizes the space on the PCB board through carefully designed component placement, achieving miniaturization of the PCB circuit board.

[0096] An embodiment of the present application further provides an air conditioner, which includes the air conditioner outdoor unit electronic control circuit of the above embodiment, or includes the air conditioner outdoor unit electronic control heat dissipation device of the above embodiment.

[0097] It is worth noting that since the air conditioner of the embodiment of the present application includes the air conditioner outdoor unit electronic control circuit of the above-mentioned embodiment, or includes the air conditioner outdoor unit electronic control heat dissipation device of the above-mentioned embodiment, the specific implementation manner and technical effects of the air conditioner of the embodiment of the present application can refer to the specific implementation manner and technical effects of the air conditioner outdoor unit electronic control circuit of any of the above-mentioned embodiments, or can refer to the specific implementation manner and technical effects of the air conditioner outdoor unit electronic control heat dissipation device of any of the above-mentioned embodiments.

[0098] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. An electric control circuit for an air conditioner outdoor unit, characterized in that: include: An input filter module, comprising three AC inductors and three AC capacitors; one end of the three AC inductors is respectively connected to a three-phase AC power supply, and the other end is respectively connected to one end of the three AC capacitors; the other ends of the three AC capacitors are connected together; A BUCK control module, wherein an AC input terminal of the BUCK control module is connected to the input filter module, and the BUCK control module is used to convert the AC voltage to obtain a DC voltage of a target voltage value, wherein the target voltage value is less than or equal to a preset voltage value; An output filter module, comprising a DC inductor and a DC capacitor connected in series, wherein the output filter module is connected to a DC output terminal of the BUCK control module; A load IPM module is connected to the output filter module.

2. The air conditioner outdoor unit electric control circuit according to claim 1, characterized in that: The load IPM module includes a compressor IPM and a fan IPM.

3. The air conditioner outdoor unit electric control circuit according to claim 1, characterized in that: Also includes: A freewheeling module, wherein the positive electrode of the freewheeling module is connected to the negative electrode of the DC output terminal of the BUCK control module, and the negative electrode of the freewheeling module is connected to the positive electrode of the DC output terminal of the BUCK control module.

4. The air conditioner outdoor unit electric control circuit according to claim 1, characterized in that: Also includes: An EMC module, the EMC module is located between the three-phase AC power supply and the input filter module; A power-on relay module is located between the EMC module and the input filter module.

5. The air conditioner outdoor unit electric control circuit according to claim 3, characterized in that: Also includes: A voltage absorption module is located between the freewheeling module and the output filtering module.

6. An electronically controlled heat dissipation device for an air conditioner outdoor unit, characterized in that: include: A circuit board and an air conditioner outdoor unit electric control circuit as claimed in any one of claims 1 to 5, wherein the air conditioner outdoor unit electric control circuit is arranged on the circuit board; A refrigerant radiator, wherein the BUCK control module and the load IPM module are arranged on the refrigerant radiator; A refrigerant pipe is connected to the refrigerant radiator.

7. The electronically controlled heat dissipation device for an air conditioner outdoor unit according to claim 6, characterized in that: There are two DC inductors, the AC capacitor and the two DC inductors are located on the first side of the refrigerant radiator, and the AC capacitor is located between the two DC inductors; both ends of the refrigerant tube are bent and passed over the AC capacitor, or one end of the refrigerant tube is bent and passed over the AC capacitor, and the other end passes between the AC capacitor and the DC inductors.

8. The electronically controlled heat dissipation device for an outdoor unit of an air conditioner according to claim 6, characterized in that: There are two DC inductors, the AC capacitor and the two DC inductors are located on the first side of the refrigerant radiator, and the AC capacitor is located on the same side of the two DC inductors; one end of the refrigerant tube is bent and passed over the DC inductor, and the other end passes between the two DC inductors.

9. The electronically controlled heat dissipation device for an outdoor unit of an air conditioner according to claim 6, characterized in that: The number of the DC inductor is one, the DC inductor and the AC capacitor are located on a first side of the refrigerant radiator, and the AC capacitor is located on one side of the DC inductor; both ends of the refrigerant tube are bent and passed over the DC inductor.

10. An air conditioner, characterized in that: It comprises the electronic control circuit of the outdoor unit of the air conditioner as described in any one of claims 1 to 5, or comprises the electronic control heat dissipation device of the outdoor unit of the air conditioner as described in any one of claims 6 to 9.

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