Filtering assembly, air conditioner outdoor unit and air conditioner

Abstract

The embodiment of the utility model provides a filtering assembly, an air conditioner outdoor unit and an air conditioner, and belongs to the technical field of filtering devices, the filtering assembly comprises a circuit board, a first electronic device used for filtering is arranged on one side face of the circuit board, and a first connecting terminal and / or a second connecting terminal are / is arranged at one end of the circuit board; the first electronic device, the first connecting terminal and the second connecting terminal form a filtering assembly to replace an indoor and outdoor connecting terminal of the related technology, so that the first electronic device is located at the nearest position of a power supply circuit, radiation interference from the outside can be effectively filtered out, and the EMS performance of the air conditioner outdoor unit is improved; and compared with a mode of arranging the filter circuit on the electric control board, the distance between the first electronic device and the electric control board can be increased, electromagnetic coupling between magnetic devices is reduced, and the EMI performance of a product is improved.

Description

Technical Field

[0001] The present application relates to the technical field of filter devices, and in particular to a filter assembly, an air conditioner outdoor unit and an air conditioner. Background Art

[0002] In the related art, some electrical equipment usually uses a variety of magnetic devices, such as air conditioners. The outdoor unit of the air conditioner includes magnetic rings, common mode inductors, transformers, power factor correction (PFC) inductors, etc. With the high integration and miniaturization design of the air conditioner housing and electronic control, electromagnetic coupling is prone to occur between the magnetic devices, such as between the PFC inductor and the common mode inductor, and between the transformer and the common mode inductor; in addition, high-frequency magnetic devices such as PFC inductors and transformers are prone to generate electromagnetic radiation to the outside. The electromagnetic coupling and electromagnetic radiation of magnetic devices will cause the electromagnetic interference (EMI) problem of the product. The magnetic ring connecting wire between the electronic control connection terminal and the indoor and outdoor connection terminal is easily interfered by the radiation outside the outdoor unit because it is close to the indoor and outdoor connection terminals of the outdoor unit housing, which reduces the electromagnetic susceptibility (EMS) performance of the product, that is, the miniaturization design of the product will lead to a decrease in the comprehensive electromagnetic compatibility (EMC) performance. 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 a filter component, an air conditioner outdoor unit and an air conditioner, which can effectively improve the comprehensive EMC performance of the product.

[0004] In a first aspect, an embodiment of the present application provides a filtering component, which is applied to an electrical appliance, including a circuit board, a side surface of which is provided with a first electronic device for filtering; one end of the circuit board is provided with a first connecting terminal and / or a second connecting terminal; the two ends of the first connecting terminal are respectively electrically connected to the input end of the first electronic device and the output end of a power supply; the two ends of the second connecting terminal are respectively electrically connected to the output end of the first electronic device and the input end of a rear-end circuit board; and the circuit board is fixed to the housing of the electrical appliance.

[0005] According to some embodiments of the present application, the filtering component also includes an insulating base, at least two of the first connecting terminals and at least two of the second connecting terminals are respectively provided, at least two of the first connecting terminals and at least two of the second connecting terminals are connected to the base, and each of the first connecting terminals and each of the second connecting terminals is provided with a pin welded to the circuit board.

[0006] According to some embodiments of the present application, the circuit board has a first side and a second side facing each other, the components of the first filter circuit are arranged on the first side, the base is arranged on the second side, the first connecting terminal and the second connecting terminal are arranged on a side of the base away from the circuit board, and the pins are passed through the base and connected to the circuit board.

[0007] According to some embodiments of the present application, the first connecting terminal includes a first conductive sheet and a screw, the first conductive sheet is fixed to the base, the first conductive sheet is provided with a screw hole connected to the screw, and the end of the first conductive sheet is provided with the pin.

[0008] According to some embodiments of the present application, two ends of the first conductive sheet are respectively bent to form a first plug-in portion that is clamped to the base, and the pin is formed at an end portion of one of the first plug-in portions.

[0009] According to some embodiments of the present application, the second connecting terminal includes a second conductive sheet, the second conductive sheet is fixed to the base, one end of the second conductive sheet is constructed as a plug-in structure, and the other end is provided with the pin.

[0010] According to some embodiments of the present application, the plug-in structure includes a first plug-in and a second plug-in arranged in parallel, and the end of the second conductive sheet away from the plug-in structure is provided with a second plug-in portion that is clamped to the base, and the pin is formed at the end of the second plug-in portion.

[0011] According to some embodiments of the present application, the circuit board is provided with a connector, one end of the connector is welded and fixed to the circuit board, and the other end is provided with a connecting hole, and the connecting hole is connected to the shell through a fastener.

[0012] In the second aspect, an embodiment of the present application also provides an air-conditioning outdoor unit, comprising a shell, an electric control board and the filter component of the first aspect above, wherein the electric control board is arranged in the shell, the second connecting terminal is connected to the electric control board through a connecting wire, and the circuit board is fixed to the shell.

[0013] According to some embodiments of the present application, the electric control board is provided with an electric control connection terminal, the electric control connection terminal is connected to the second connection terminal through the connection line, and a second electronic device for filtering is provided between the second connection terminal and the control circuit of the electric control board.

[0014] According to some embodiments of the present application, the connecting line is provided with a magnetic ring, the electric control board is provided with at least two capacitors, at least two of the capacitors have one end connected to the electric control connection terminal and the other end grounded, and the magnetic ring cooperates with the capacitor to form the second electronic device.

[0015] According to some embodiments of the present application, the electric control board is provided with an electric control connection terminal, and the electric control board is provided with a second electronic device for filtering, the second electronic device includes an LC filter circuit or a common-mode inductor, and the LC filter circuit or the common-mode inductor is connected between the electric control connection terminal and the control circuit of the electric control board.

[0016] According to some embodiments of the present application, the connecting line is provided with a magnetic ring.

[0017] In a third aspect, an embodiment of the present application further provides an air conditioner, comprising an air conditioner outdoor unit as described in the second aspect above.

[0018] According to the technical solution of the embodiment of the present application, there are at least the following beneficial effects:

[0019] In the embodiment of the present application, a first electronic device for filtering is arranged on one side of the circuit board, and a first connecting terminal and / or a second connecting terminal are arranged at one end of the circuit board, so that the first electronic device and the first connecting terminal and the second connecting terminal form a filtering component, the two ends of the first connecting terminal are electrically connected to the input end of the first electronic device and the output end of the power supply, respectively, and the two ends of the second connecting terminal are electrically connected to the output end of the first electronic device and the input end of the rear-end circuit board, respectively. The circuit board is a separate component and is fixedly connected to the housing of the electrical appliance, separated from the rear-end circuit board, and replaces the indoor and outdoor connecting terminals of the related technology. In this way, the first electronic device is located closest to the power supply line, which can effectively filter out external radiation interference, is suitable for air conditioners or other electrical appliances, and improves the EMS performance of the electrical appliances; and compared with the method of setting the filtering circuit on the rear-end circuit board such as the electric control board, the present application can increase the distance between the first electronic device and the electric control board, which is beneficial to reduce the electromagnetic coupling between magnetic devices and improve the EMI performance of the product.

[0020] 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

[0021] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0022] Figure 1It is a schematic diagram of the framework of an air-conditioning outdoor unit provided by an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of a framework of an air-conditioning outdoor unit provided by another embodiment of the present application;

[0024] Figure 3 is a schematic diagram of a framework of an air-conditioning outdoor unit provided by another embodiment of the present application;

[0025] Figure 4 is a schematic diagram of a framework of an air-conditioning outdoor unit provided by another embodiment of the present application;

[0026] Figure 5 is a three-dimensional schematic diagram of a filter assembly provided at a viewing angle according to an embodiment of the present application;

[0027] Figure 6 is a three-dimensional schematic diagram of a filter assembly provided from another perspective according to an embodiment of the present application;

[0028] Figure 7 is a side schematic diagram of a filter assembly provided by an embodiment of the present application;

[0029] Figure 8 is a three-dimensional schematic diagram of a base provided by an embodiment of the present application;

[0030] Fig. 9 is a schematic top view of a base provided by an embodiment of the present application;

[0031] Fig.10 yes Fig. 9 Schematic diagram of the cross section in the AA direction;

[0032] Fig.11 is a three-dimensional schematic diagram of a first connecting terminal provided by an embodiment of the present application;

[0033] Fig.12 is a side schematic diagram of a first connecting terminal provided by an embodiment of the present application;

[0034] Fig.13 is a three-dimensional schematic diagram of a second connecting terminal provided by an embodiment of the present application;

[0035] Fig.14 is a side schematic diagram of a second connecting terminal provided by an embodiment of the present application;

[0036] Fig.15 It is a schematic diagram of the installation structure of the filter assembly provided in the embodiment of the present application in the box of the air conditioner outdoor unit;

[0037] Fig.16 yes Fig.15 A schematic diagram of the enlarged structure at B in the middle;

[0038] Fig.17 It is a schematic diagram of the side structure of the box body of the air-conditioning outdoor unit provided in an embodiment of the present application;

[0039] Fig.18 It is a schematic diagram of the top view of the structure of the filter component provided in an embodiment of the present application in the box of an air-conditioner outdoor unit.

[0040] Reference numerals:

[0041] Box body 100; side panel 110; sheet metal part 111; opening 112; middle partition 120;

[0042] Filter assembly 200; first connection terminal 210; first welding pin 211; first conductive sheet 212; screw 213; first plug-in portion 214; first clamping structure 2141; metal gasket 215; second connection terminal 220; second welding terminal 221; second conductive sheet 222; plug-in structure 223; first plug-in 2231; second plug-in 2232; second plug-in portion 224; second clamping structure 2241; circuit board 230; first electronic device 2301; first filter circuit 231; base 240; first slot 241; first through hole 2411; second slot 242; second through hole 2421; baffle 243; connector 250; connecting hole 251;

[0043] Electric control board 300; control circuit 310; PFC inductor 311; transformer 312; electric control connection terminal 320; local filter circuit 330;

[0044] Connecting wire 400; Magnetic ring 410;

[0045] Power supply and communication line 500;

[0046] A second filtering circuit 600;

[0047] Electric control box 700;

[0048] Fan 800;

[0049] Compressor 900;

[0050] Air conditioner outdoor unit 1000. DETAILED DESCRIPTION

[0051] 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.

[0052] 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.

[0053] 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.

[0054] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0055] 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.

[0056] In some cases, the electric control board of the air conditioner outdoor unit is usually installed inside the box of the air conditioner outdoor unit in order to meet safety regulations, waterproof and vibration requirements. In order to provide power and communication signals to the electric control board, indoor and outdoor connection terminals are usually installed on the box of the air conditioner outdoor unit. The indoor and outdoor connection terminals on one side are used to connect to the external power supply and communication lines, and the indoor and outdoor connection terminals on the other side are used to connect to the electric control board. In the related art, in order to meet EMC requirements, a filter circuit is usually set on the electric control board near the electric control connection terminal.

[0057] Among them, a variety of magnetic devices are usually used in the air conditioner outdoor unit, including magnetic rings, common-mode inductors, transformers, PFC inductors and other devices. For example, the filter circuit on the electric control board is provided with a common-mode inductor, and other circuits on the electric control board are provided with transformers and PFC inductors. With the high integration and miniaturization design of the air conditioner cabinet and electric control, electromagnetic coupling is prone to occur between the magnetic devices, for example, electromagnetic coupling between the PFC inductor and the common-mode inductor, and electromagnetic coupling between the transformer and the common-mode inductor; in addition, high-frequency magnetic devices such as PFC inductors and transformers are prone to external electromagnetic radiation. The electromagnetic coupling and electromagnetic radiation of magnetic devices will lead to EMI interference problems of the product. Moreover, the magnetic ring connecting wire between the electric control connection terminal and the indoor and outdoor connection terminals is easily interfered by the radiation outside the air conditioner outdoor unit because it is close to the indoor and outdoor connection terminals of the air conditioner outdoor unit cabinet, which reduces the EMS performance of the product, that is, the miniaturization design of the product will lead to a reduction in the comprehensive EMC performance.

[0058] Among them, electromagnetic coupling means that a changing electric field will generate a magnetic field, and a changing magnetic field will become an electric field. The magnetic field and electric field complement each other and influence each other. Electromagnetic radiation refers to the transmission of momentum and energy in the form of waves in space by electric and magnetic fields that oscillate in the same direction and are perpendicular to each other. The propagation direction is perpendicular to the plane formed by the electric and magnetic fields. The interactive changes of the electric and magnetic fields generate electromagnetic waves, which are emitted or propagated into the air to form electromagnetic radiation.

[0059] Based on the above situation, the embodiment of the present application proposes an air-conditioning outdoor unit 1000, aiming to improve the comprehensive EMC performance of the product.

[0060] The following is a further description of various embodiments of the air-conditioning outdoor unit 1000 of the present application in conjunction with the accompanying drawings.

[0061] Reference Figure 1 As shown, the air conditioner outdoor unit 1000 of the embodiment of the present application includes a housing 100, a filter assembly 200 and an electric control board 300. The filter assembly 200 and the electric control board 300 are both installed in the housing 100. The electric control board 300 and the filter assembly 200 are electrically connected. The electric control board 300 is mainly used to control the operation of the compressor 900, the fan 800 and other equipment of the air conditioner outdoor unit 1000 to ensure that the air conditioner can operate efficiently and stably. The housing 100, as the shell of the air conditioner outdoor unit 1000, protects the compressor 900, the fan 800, the electric control board 300 and the filter assembly 200, and meets the requirements of safety regulations, waterproofing and vibration.

[0062] Reference Figure 1As shown, the filter assembly 200 includes a circuit board 230, a first connection terminal 210 and a second connection terminal 220, the first connection terminal 210 and the second connection terminal 220 are arranged on the circuit board 230, the circuit board 230 is provided with a first electronic device 2301 for filtering, the first electronic device 2301 is located on one side of the circuit board 230, one end of the first connection terminal 210 is electrically connected to the input end of the first electronic device 2301, and the other end of the first connection terminal 210 is electrically connected to the power supply output end, which can be understood as the power supply and communication line 500 of the air conditioner outdoor unit 1000; one end of the second connection terminal 220 is connected to the output end of the first electronic device 2301, and the other end of the second connection terminal 220 is electrically connected to the input end of the rear circuit board, which is the electric control board 300 of the air conditioner outdoor unit 1000. It should be noted that when the filter assembly 200 is applied to other electrical appliances, the rear circuit board can be understood as a control circuit board, a power board or other circuit board of the electrical appliance.

[0063] Specifically, the first electronic device 2301 includes a first filter circuit 231, a first connection terminal 210 and a second connection terminal 220 are electrically connected to the input end and the output end of the first filter circuit 231 respectively, the first connection terminal 210 is used to connect the power supply and the communication line 500, and the second connection terminal 220 is connected to the electric control board 300 through the connection line 400. It can be understood that the circuit board 230 is a printed circuit board structure, which serves as a carrier of the first filter circuit 231, the first connection terminal 210 and the second connection terminal 220, and is connected to the box 100 through the circuit board 230, so that the first connection terminal 210 and the second connection terminal 220 are both fixed on the box 100, so that the first connection terminal 210 is connected to the power supply and the communication line 500 outside the box 100. The first electronic device 2301 specifically includes components such as capacitors, inductors and resistors, and the first filter circuit 231 is formed by the above components. The first filter circuit 231 can specifically be an LC filter circuit, an LCR filter circuit or other forms of filter circuits.

[0064] It should be noted that the electric control board 300 can be fixedly connected to the box body 100 through the electric control box 700 . For example, the electric control box 700 is connected to the middle partition plate 120 or the inner wall of the box body 100 .

[0065] It is understandable that the first connection terminal 210 and the second connection terminal 220 are provided on the circuit board 230 at the same time, so as to facilitate the connection of the filter assembly 200 with the electric control board 300 and the power supply and communication line 500. This is only an example. In some embodiments, the circuit board 230 can be provided with the first connection terminal 210 or the second connection terminal 220. For example, the first connection terminal 210 is provided at one end of the circuit board 230, and the second connection terminal 220 can be provided on the box 100 or the electric control board 300; for another example, the second connection terminal 220 is provided at one end of the circuit board 230, and the first connection terminal 210 can be provided on the box 100.

[0066] It is understandable that in the related art, a filter circuit is usually integrated on the electric control board 300, and two groups of indoor and outdoor connection terminals are connected to the box 100, one group of which is connected to the external power supply and communication line 500, and the other group is connected to the electric control board 300 through a connecting wire 400 with a magnetic ring 410. Since the connecting wire 400 with a magnetic ring 410 is close to the indoor and outdoor connection terminals, it is easy to be interfered by the radiation outside the air conditioner outdoor unit 1000, which reduces the EMS performance of the product, that is, the miniaturized design of the product will lead to a decrease in the overall EMC performance.

[0067] Therefore, the embodiment of the present application forms a filter assembly 200 by combining the first filter circuit 231 with the first connection terminal 210 and the second connection terminal 220, replacing the two sets of indoor and outdoor connection terminals in the related art, so that the first filter circuit 231 is located closest to the power supply and communication line 500, which can effectively filter out the radiation interference from the outside and improve the EMS performance of the air conditioner outdoor unit 1000. Moreover, the filter assembly 200 also has the electrical properties of EMC filtering and the mechanical properties of being fixedly installed with the power supply and communication line 500 and the connecting line 400.

[0068] Moreover, since the present application sets the filter assembly 200 in the box 100 and separates it from the electric control board 300, for example, the electric control board 300 is installed on the middle partition 120 as an example for explanation, compared with the method of integrating the filter circuit with the electric control board 300, the present application increases the distance between the first filter circuit 231 and the electric control board 300 by separating the filter assembly 200 from the electric control board 300, thereby increasing the distance between the common mode inductor of the first filter circuit 231 and the magnetic components such as the PFC inductor 311 and the transformer 312, which is conducive to reducing the electromagnetic coupling between the magnetic components and improving the EMI performance of the product. Moreover, the magnetic ring 410 of the connecting wire 400 is located between the electric control board 300 and the second connecting terminal 220, that is, the magnetic ring 410 is not easily interfered by the radiation outside the air conditioner outdoor unit 1000, thereby improving the EMS performance of the product.

[0069] Reference Figure 1As shown, it can be understood that, in some embodiments, the first filter circuit 231 is integrated with the first connection terminal 210 and the second connection terminal 220, so that there is no need to layout the filter circuit on the electric control board 300, which saves space on the electric control board 300, helps to reduce the size of the electric control board 300, and increases the optimization space of the product.

[0070] Reference Figure 2 As shown, in some embodiments, the air conditioner outdoor unit 1000 includes a filter assembly 200 and a second electronic device, the second electronic device includes a second filter circuit 600, and the filter assembly 200 includes a first filter circuit 231, a first connection terminal 210 and a second connection terminal 220, wherein the first connection terminal 210 is connected to the first filter circuit 231, and the first connection terminal 210 is used to connect to the power supply and communication line 500, specifically, the first connection terminal 210 is provided with a plurality of first connection terminals, the power supply and communication line 500 includes a power line and a signal line, part of the first connection terminal 210 is used to connect the power line, and the other part of the first connection terminal 210 is used to connect the signal line. The second connection terminal 220 is connected to the first filter circuit 231, one end of the second filter circuit 600 is connected to the second connection terminal 220 through the connection line 400, and the other end is connected to the control circuit 310 of the electric control board 300.

[0071] Since the embodiment of the present application combines the first filter circuit 231 and the first connection terminal 210 and the second connection terminal 220 into an integrated filter component 200, and the filter component 200 can be installed on the air conditioner outdoor unit 1000 housing 100, replacing the original two sets of indoor and outdoor connection terminals, the first filter circuit 231 is closest to the power supply and communication line 500, and can effectively filter out external radiation interference, thereby improving the product EMS performance; moreover, the filter component 200 also increases the distance between the common-mode inductor and magnetic devices such as the PFC inductor 311 and the transformer 312, thereby reducing the electromagnetic coupling between the magnetic devices and improving the product EMI performance; in addition, the second filter circuit 600 can further filter out electromagnetic radiation interference, and the first filter circuit 231 and the second filter circuit 600 are combined to form a two-stage filter circuit topology, thereby improving the product EMI filtering performance.

[0072] Reference Figure 2 As shown, specifically, in the embodiment, the electric control board 300 is provided with a local filter circuit 330 , the connecting line 400 is provided with a magnetic ring 410 , and the local filter circuit 330 and the magnetic ring 410 form a second filter circuit 600 .

[0073] It can be understood that the magnetic ring 410 can be equivalent to a small common-mode inductor, so the local filter circuit 330 can form a second filter circuit 600 with the magnetic ring 410, thereby forming an EMC filter component 200 with a two-stage filter topology with the first filter circuit 231 in the filter component 200, which can improve the EMI filtering performance of the product.

[0074] Specifically, the filter component 200 is composed of a first connecting terminal 210, a second connecting terminal 220 and a first filter circuit 231, which serves as the first-stage EMC filter topology of the air-conditioning outdoor unit 1000. The local filter circuit 330 can be an LC filter circuit composed of LC devices, or can be implemented using a Y capacitor. The local filter circuit 330 cooperates with the magnetic ring 410 to form a second filter circuit 600, which serves as the second-stage EMC filter topology of the air-conditioning outdoor unit 1000, thereby forming a two-stage filter topology.

[0075] Reference Figure 4 As shown, in some embodiments, the local filter circuit 330 includes a capacitor CY3 and a capacitor CY4, and at least one capacitor CY3 and at least one capacitor CY4 can be respectively provided, wherein one end of each capacitor is connected to the connecting line 400, and the other end is grounded. In this regard, since the magnetic ring 410 is equivalent to a common-mode inductor, the embodiment of the present application can add multiple capacitors to the electric control board 300 of the air-conditioning outdoor unit 1000, and form a first-level LC filter circuit with the connecting line 400 with the magnetic ring 410, that is, multiple capacitors cooperate with the magnetic ring 410 to form a second electronic device, so as to form a two-stage LC topology EMC filter component 200 with the first filter circuit 231 in the filter component 200, which can improve the EMI filtering performance of the product.

[0076] It should be noted that the local filter circuit 330 on the electric control board 300 has Figure 4 As shown, it is implemented with two capacitors, and may also be composed of other LCR devices (inductor L, capacitor C and resistor R), which is not specifically limited in the embodiments of the present application.

[0077] Reference Figure 3 As shown, in some embodiments, the second filter circuit 600 is disposed on the electric control board 300, that is, the second filter circuit 600 on the electric control board 300 can realize the filtering function by itself, and does not need to be combined with the magnetic ring 410 to realize the filtering function. In order to enable the second filter circuit 600 on the electric control board 300 to realize the filtering function by itself, a common mode inductor can be set in the second filter circuit 600, that is, Figure 2 The equivalent common mode inductance of the middle magnetic ring 410 can also be Figure 3 This is achieved by the common mode inductance on the second filtering circuit 600 shown.

[0078] It should be noted that for Figure 3The connecting wire 400 in the air-conditioning outdoor unit 1000 shown may be a connecting wire 400 with a magnetic ring 410 or a connecting wire 400 without a magnetic ring 410 , and this embodiment of the present application does not specifically limit this.

[0079] In some embodiments, for the first filtering circuit 231 described above, Figure 4 The circuit structure shown, wherein the first filter circuit 231 can be an LC filter topology circuit, for example, the first filter circuit 231 can include a first-stage LC filter circuit composed of devices such as varistors ZR1 and ZR2, X capacitors CX1 and CX2, common-mode inductor Lcm1, and Y capacitors CY1 and CY2.

[0080] Refer to the following Figures 5 to 14 The structure of the filter assembly 200 is specifically described as shown. Figures 5 to 7 A schematic diagram of a filter assembly 200 provided in one embodiment of the present application is shown; Figures 8 to 10 A schematic diagram of the assembly structure of a base 240, a first connection terminal 210, and a second connection terminal 220 provided in one embodiment of the present application is shown; Figure 11 to Figure 12 A schematic diagram of the structure of a first connecting terminal 210 provided in one embodiment of the present application is shown; Figure 13 to Figure 14 A schematic structural diagram of a second connection terminal 220 provided in one embodiment of the present application is shown.

[0081] Reference Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, the filter assembly 200 further includes a base 240, wherein the first filter circuit 231 is disposed on the circuit board 230. Figure 4 The LC filtering topology circuit structure shown serves as the first filtering circuit 231. The circuit board 230 has a first side and a second side arranged opposite to each other. In the embodiment, the first side is the upper side of the circuit board 230, and the second side is the lower side of the circuit board 230. The LC device of the first filtering circuit 231 is arranged on the upper side of the circuit board 230, and the base 240 is arranged on the lower side of the circuit board 230.

[0082] It can be understood that the base 240 is made of insulating material, and the first connection terminal 210 and the second connection terminal 220 are arranged on the base 240, wherein three first connection terminals 210 and three second connection terminals 220 are respectively arranged, and the three first connection terminals 210 and the three second connection terminals 220 are arranged along the left and right direction of the base 240, and the left and right direction of the base 240 is consistent with its length direction; the three first connection terminals 210 are used to connect the power supply and communication lines 500, and the three second connection terminals 220 are used to connect with the connecting wire 400, and are connected to the electric control board 300 through the connecting wire 400. In addition, the base 240 is arranged at the edge of the circuit board 230, so that the first connection terminal 210 and the second connection terminal 220 are distributed along the edge of the circuit board 230, which is convenient for the routing of the power line, the signal line and the connecting wire 400. It should be noted that the adjacent connection terminals are separated by the baffle 243 to ensure that each connection terminal is wired separately to avoid mutual interference.

[0083] Of course, the filter assembly 200 can be implemented in various ways, aiming to integrate the first filter circuit 231 with the first connection terminal 210 and the second connection terminal 220. In some embodiments, the base 240 and the LC device can also be located on the same side of the circuit board 230.

[0084] In addition, the arrangement of the first connection terminal 210 and the second connection terminal 220 is not limited to the structure shown in the above embodiment. The first connection terminal 210 and the second connection terminal 220 can be spaced apart along the upper and lower directions of the base 240. For example, the first connection terminal 210 is arranged on the upper side of the base 240, and the second connection terminal 220 is arranged on the lower side of the base 240. The number of bases 240 is not limited to one. For example, bases 240 are respectively provided on both sides of the circuit board 230, the first connection terminal 210 is distributed on the base 240 on one side, and the second connection terminal 220 is distributed on the base 240 on the other side. The arrangement structure of the first connection terminal 210 and the second connection terminal 220 can be set according to the requirements of the actual product. In addition, the specific number of the first connection terminal 210 and the second connection terminal 220 is selected according to the actual application requirements and is not specifically limited.

[0085] Reference Figure 8 and Fig. 9As shown, in some embodiments, a plurality of slots are provided on one side of the base 240 of the filter assembly 200, wherein the first connection terminal 210 and the second connection terminal 220 can be installed and fixed in the slots, and the plurality of slots can be divided into two groups of slots, the first group of slots includes three slots, and the first group of slots is used to install the first connection terminal 210; the second group of slots includes three slots, and the second group of slots is used to install the second connection terminal 220. It can be understood that adjacent slots are separated by baffles 243 to achieve physical isolation between the connection terminals and avoid interference between wiring.

[0086] Reference Figure 8 As shown, each first connecting terminal 210 and each second connecting terminal 220 is provided with a pin, which passes through the base 240 and is connected to the circuit board 230. The pins of each connecting terminal are fixedly connected to the circuit board 230 by welding, so as to realize electrical connection between the first connecting terminal 210, the second connecting terminal 220 and the first filter circuit 231.

[0087] Reference Fig.11 and Fig.12 As shown, in some embodiments, the first connecting terminal 210 includes a first conductive sheet 212 and a screw 213, the first conductive sheet 212 is provided with a screw hole connected to the screw 213, and a pin is provided at the end of the first conductive sheet 212, which is a first welding pin 211. The first conductive sheet 212 and the screw 213 are connected and combined to form a weldable combined screw, and the first welding pin 211 is passed through the base 240 and welded to the circuit board 230, thereby realizing the connection between the first connecting terminal 210 and the circuit board 230.

[0088] In some embodiments, the first slot 241 of the base 240 can be provided with a first through hole 2411 for penetrating the base 240. When the first connection terminal 210 is installed in the first slot 241, the first welding pin 211 can pass through the first through hole 2411 and be inserted into the corresponding socket on the circuit board 230, so that the first welding pin 211 can be welded and combined with the circuit board 230.

[0089] Reference Fig.11 and Fig.12 As shown, the first conductive sheet 212 is a curved insert, one side of which is provided with a screw hole, and the screw 213 can be movably inserted into the screw hole, so as to achieve the compression and fixation of the power line or the signal line. In some embodiments, a metal gasket 215 is provided between the head of the screw 213 and the screw hole, so that the screw 213 can more firmly press the line to ensure the stability of the connection. In addition, the other side of the curved insert is provided with a first welding pin 211, which can be inserted into the base 240 and welded to the circuit board 230.

[0090] Reference Fig.11 and Fig.12 As shown, it should be noted that the two ends of the first conductive sheet 212 are respectively bent to form a first plug-in portion 214, wherein the first plug-in portion 214 on one side is provided with a first welding pin 211, and the first plug-in portion 214 can be inserted into the first through hole 2411 for fixing. In the embodiment, the edge of the first plug-in portion 214 has a serrated first clamping structure 2141, and the serrated structure can effectively increase the friction between the bent plug-in and the inner wall of the first through hole 2411, so that the connection between the first conductive sheet 212 and the base 240 is more firm and reliable, and the first conductive sheet 212 is prevented from being loosened and affecting the conductive performance.

[0091] Reference Fig.10 As shown, it can be understood that during assembly, the first plug-in portion 214 is inserted into the base 240, and clamping is achieved through the sawtooth structure, the head of the screw 213 is exposed in the first slot 241, and the first welding pin 211 passes through the bottom of the base 240. Since the first conductive sheet 212 is fixed to the base 240 through the first plug-in portions 214 at both ends, the installation structure of the screw 213 is ensured to be more firm and reliable.

[0092] Of course, this is only an example, and the first plug-in portion 214 is not limited to the serrated first clamping structure 2141 . The first plug-in portion 214 can also be connected to the base 240 by interference fit, snap fit or other clamping methods.

[0093] Reference Fig.13 and Fig.14 As shown, in some embodiments, the second connecting terminal 220 includes a second conductive sheet 222, one end of which is provided with a plug structure 223, and the other end is provided with a pin, which is specifically a second welding pin. The second conductive sheet 222 can be called a weldable plug, and the second welding pin passes through the base 240 and is welded to the circuit board 230.

[0094] In some embodiments, the second slot 242 of the base 240 is provided with a second through hole 2421 for penetrating the base 240. When the second connection terminal 220 is installed in the second slot 242, the second welding pin can pass through the second through hole 2421 and be inserted into the corresponding socket on the circuit board 230, so that the second welding pin can be welded and combined with the circuit board 230.

[0095] Reference Fig.13 and Fig.14As shown, the plug structure 223 includes a first plug 2231 and a second plug 2232, and the first plug 2231 and the second plug 2232 are arranged in parallel. The first plug 2231 and the second plug 2232 are used to connect with the connecting line 400. Specifically, the connecting line 400 can be plugged with the first plug 2231 and the second plug 2232 through the plug-in terminal to achieve a quick connection between the connecting line 400 and the second connecting terminal 220. Compared with the connection method of a single plug, the embodiment of the present application simultaneously plugs in the first plug 2231 and the second plug 2232, and the structure is more reliable.

[0096] In some embodiments, the first plug 2231 and the second plug 2232 can be formed by bending a second conductive sheet 222 as a whole; or two second conductive sheets 222 can be used to form the first plug 2231 and the second plug 2232 respectively, and then the two second conductive sheets 222 are stacked together to form a weldable plug, and the second welding pin is formed at the end of one of the second conductive sheets 222, and the two second conductive sheets 222 can be stacked by welding.

[0097] Reference Fig.13 As shown, in some embodiments, the second conductive sheet 222 is provided with a second plug-in portion 224 at the end away from the plug-in structure 223, and the second plug-in portion 224 can be inserted into the second through hole 2421 for fixation, and the second welding pin is formed at the end of the second plug-in portion 224. Specifically, the edge of the second plug-in portion 224 has a serrated second clamping structure 2241, and the serrated structure can effectively increase the friction between the second conductive sheet 222 and the inner wall of the second through hole 2421, so that the connection between the second conductive sheet 222 and the base 240 is more firm and reliable, and the second conductive sheet 222 is prevented from being loosened.

[0098] Reference Fig.10 As shown, it can be understood that during assembly, the second plug-in portion 224 is inserted into the second through hole 2421 of the base 240, and clamping is achieved through the serrated structure, the first plug-in piece 2231 and the second plug-in piece 2232 are exposed in the second slot 242, and the second welding pin is passed through the bottom of the base 240. Of course, this is only an example, and the second plug-in portion 224 is not limited to the serrated second clamping structure 2241. The second plug-in portion 224 can also be connected to the base 240 by interference fit, buckle or other clamping methods.

[0099] It should be noted that the first connecting terminal 210 and the second connecting terminal 220 mentioned above can be an integrated structure on the left and right, an integrated structure on the top and bottom, a separated structure on the left and right, or a separated structure on the top and bottom, etc. The embodiment of the present application does not make any specific limitations on this.

[0100] Reference Figure 6 and Figure 7 As shown, in some embodiments, the circuit board 230 is provided with a connector 250, which is used to connect to the housing 100. One end of the connector 250 is provided with a pin welded to the circuit board 230, and the other end is provided with a connecting hole 251. A fastener is passed through the connecting hole 251 to connect to the mounting hole on the housing 100. The fastener can be a screw, a rivet or other connecting component to achieve a fixed connection between the circuit board 230 and the housing 100 of the air-conditioning outdoor unit 1000, so that the filter component 200 can be fixed to the housing 100.

[0101] Reference Figures 15 to 18 As shown, Fig.15 A schematic diagram of the front structure of the air conditioner outdoor unit 1000 according to an embodiment of the present application is shown; Fig.17 A schematic diagram of the side structure of an air-conditioning outdoor unit 1000 according to an embodiment of the present application is shown; Fig.18 A schematic diagram of the internal structure of the air-conditioning outdoor unit 1000 according to an embodiment of the present application is shown from a top view.

[0102] Based on the filter assembly 200 of each of the above-mentioned embodiments, various embodiments of the air conditioner outdoor unit 1000 of the present application are respectively proposed below.

[0103] In some embodiments, the air conditioner outdoor unit 1000 of the embodiment of the present application includes the filter component 200 of any of the above embodiments.

[0104] It is understandable that the filter assembly 200 of the embodiment of the present application is installed on the side plate 110 of the box 100 of the air conditioner outdoor unit 1000. Specifically, the side plate 110 of the box 100 is provided with an opening 112, and a sheet metal part 111 extending toward the inside of the box 100 is formed on one side of the opening 112. The connector 250 of the circuit board 230 of the embodiment of the present application is fixedly connected to the sheet metal part 111 by screws to realize the assembly of the filter assembly 200 and the box 100. This is only an example, and the filter assembly 200 may also be realized by other forms of installation, which is not specifically limited in the embodiment of the present application.

[0105] It is worth noting that since the air-conditioning outdoor unit 1000 of the embodiment of the present application includes the filter component 200 of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the air-conditioning outdoor unit 1000 of the embodiment of the present application can refer to the specific implementation manner and technical effects of the filter component 200 of any of the above-mentioned embodiments.

[0106] In some embodiments, Figure 1 As shown, the air conditioner outdoor unit 1000 further includes an electric control board 300 , which is provided with an electric control connection terminal 320 , and the electric control connection terminal 320 is connected to the second connection terminal 220 in the filter assembly 200 through a connection line 400 .

[0107] In some embodiments, the control circuit 310 on the electric control board 300 is usually provided with a PFC inductor 311, a transformer 312 or other magnetic devices. It should be noted that the embodiment of the present application forms a filter component 200 with the first filter circuit 231 and the first connection terminal 210 and the second connection terminal 220, which replaces the indoor and outdoor connection terminals of the related technology, and can effectively filter out external radiation interference and improve the EMS performance of the air conditioner outdoor unit 1000.

[0108] In some embodiments, regarding the connecting line 400 between the electric control connecting terminal 320 and the second connecting terminal 220, it can be a connecting line 400 with a magnetic ring 410, or it can be a connecting line 400 without a magnetic ring 410, and the embodiments of the present application do not make specific limitations on this.

[0109] Among them, the connecting line 400 with the magnetic ring 410 can reduce electromagnetic interference and improve the electromagnetic compatibility of the system. In the air conditioning system, the electrical part of the air conditioning outdoor unit 1000 may generate or be subject to electromagnetic interference from other electronic devices. These interferences may affect the normal operation of the air conditioner, reduce efficiency, and even cause failures. Among them, the functions of the magnetic ring 410 include but are not limited to the following points: First, suppress high-frequency noise: The magnetic ring 410 can suppress high-frequency noise on the connecting line 400, which may come from the electronic control unit or other electronic components inside the air conditioning outdoor unit. Second, reduce current shock: When the air conditioning outdoor unit is started or shut down, the current may have a large shock. The magnetic ring 410 helps to smooth these current shocks and protect the connecting line 400 and the electronic components inside the outdoor unit. Third, improve the quality of signal transmission: For the connecting line 400 with a control signal, the magnetic ring 410 can reduce interference during signal transmission and ensure the clarity and accuracy of the signal. Fourth, filtering effect: The magnetic ring 410 can act as a low-pass filter to filter out unnecessary high-frequency signals and only allow low-frequency useful signals to pass. Fifth, enhancing system stability: By reducing electromagnetic interference, the magnetic ring 410 helps to improve the stability and reliability of the entire air conditioning system.

[0110] In some embodiments, the filter assembly 200 is installed at the sheet metal position on the side of the box 100 of the air-conditioning outdoor unit 1000, wherein the sheet metal position on the side of the box 100 of the air-conditioning outdoor unit 1000 generally refers to the shell part of the air-conditioning outdoor unit 1000, which is mainly used to protect the internal compressor 900, condenser, fan and other electrical components. Alternatively, the filter assembly 200 may also be implemented by other forms of installation, which is not specifically limited in the embodiments of the present application.

[0111] Based on the air-conditioning outdoor unit 1000 of each of the above-mentioned embodiments, various embodiments of the air conditioner of the present application are respectively proposed below.

[0112] In some embodiments, the air conditioner of the embodiments of the present application includes but is not limited to the air conditioner outdoor unit 1000 of any of the above embodiments.

[0113] It is worth noting that since the air conditioner of the embodiment of the present application includes the air conditioner outdoor unit 1000 of any of the above-mentioned embodiments, 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 1000 of any of the above-mentioned embodiments.

[0114] It should be noted that the filter assembly 200 of the above embodiment is not limited to being used in air conditioners. As a separate filter component, it can also be applied to electrical appliances such as refrigerators and washing machines, and can effectively improve the EMI performance of the product.

[0115] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0116] In several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of apparatuses or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0117] 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. A filter component, applied to an electrical appliance, characterized in that: include: A circuit board, wherein a first electronic device for filtering is disposed on one side of the circuit board; a first connection terminal and / or a second connection terminal are disposed on one end of the circuit board; two ends of the first connection terminal are electrically connected to an input end of the first electronic device and an output end of a power supply respectively; two ends of the second connection terminal are electrically connected to an output end of the first electronic device and an input end of a rear circuit board respectively; The circuit board is fixed to the housing of the electrical appliance.

2. The filter assembly according to claim 1, characterized in that: The filter component also includes an insulating base, at least two of the first connecting terminals and at least two of the second connecting terminals are respectively provided, at least two of the first connecting terminals and at least two of the second connecting terminals are connected to the base, and each of the first connecting terminals and each of the second connecting terminals is respectively provided with a pin welded to the circuit board.

3. The filter assembly according to claim 2, characterized in that: The circuit board has a first side and a second side facing each other, the first electronic device is arranged on the first side, the base is arranged on the second side, the first connecting terminal and the second connecting terminal are arranged on a side of the base away from the circuit board, and the pins are passed through the base and connected to the circuit board.

4. The filter assembly according to claim 2, characterized in that: The first connecting terminal includes a first conductive sheet and a screw. The first conductive sheet is fixed to the base. The first conductive sheet is provided with a screw hole connected to the screw. The end of the first conductive sheet is provided with the pin.

5. The filter assembly according to claim 4, characterized in that: Two ends of the first conductive sheet are respectively bent to form first plug-in parts that are clamped with the base, and the pin is formed at an end of one of the first plug-in parts.

6. The filter assembly according to claim 2, characterized in that: The second connecting terminal includes a second conductive sheet, which is fixed to the base. One end of the second conductive sheet is configured as a plug-in structure, and the other end is provided with the pin.

7. The filter assembly according to claim 6, characterized in that: The plug-in structure comprises a first plug-in and a second plug-in arranged in parallel, the end of the second conductive sheet away from the plug-in structure is provided with a second plug-in portion engaged with the base, and the pin is formed at the end of the second plug-in portion.

8. The filter assembly according to claim 1, characterized in that: The circuit board is provided with a connecting piece, one end of the connecting piece is welded and fixed to the circuit board, and the other end is provided with a connecting hole, and the connecting hole is connected to the shell through a fastener.

9. An air conditioner outdoor unit, characterized in that: include: case; An electric control board, disposed in the housing; According to any one of claims 1 to 8, the second connecting terminal is connected to the electric control board via a connecting wire, and the circuit board is fixed to the housing.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The electric control board is provided with an electric control connection terminal, the electric control connection terminal is connected to the second connection terminal through the connection line, and a second electronic device for filtering is provided between the second connection terminal and the control circuit of the electric control board.

11. The air conditioner outdoor unit according to claim 10, characterized in that: The connecting line is provided with a magnetic ring, the electric control board is provided with at least two capacitors, one end of at least two of the capacitors is connected to the electric control connection terminal, and the other end is grounded, and the magnetic ring cooperates with the capacitor to form the second electronic device.

12. The air conditioner outdoor unit according to claim 9, characterized in that: The electric control board is provided with an electric control connection terminal, and the electric control board is provided with a second electronic device for filtering, the second electronic device includes an LC filter circuit or a common mode inductor, and the LC filter circuit or the common mode inductor is connected between the electric control connection terminal and the control circuit of the electric control board.

13. The air conditioner outdoor unit according to claim 12, characterized in that: The connecting line is provided with a magnetic ring.

14. An air conditioner, characterized in that: It comprises an air conditioner outdoor unit as described in any one of claims 9 to 13.

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