Filtering assembly, air conditioner outdoor unit and air conditioner

Abstract

The embodiment of the invention 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] This application relates to the field of filtering device technology, and in particular to a filtering component, an outdoor unit of an air conditioner, and an air conditioner. Background Technology

[0002] In related technologies, some electrical devices typically utilize various magnetic components. For example, air conditioners' outdoor units include magnetic rings, common-mode inductors, transformers, and power factor correction (PFC) inductors. With the increasing integration and miniaturization of air conditioner casings and electronic controls, electromagnetic coupling easily occurs between these magnetic components, such as between PFC inductors and common-mode inductors, or between transformers and common-mode inductors. Furthermore, high-frequency magnetic components like PFC inductors and transformers are prone to generating electromagnetic radiation. This electromagnetic coupling and radiation from magnetic components leads to electromagnetic interference (EMI) problems. The magnetic ring-loaded connection wires between the electronic control terminals and the indoor / outdoor connection terminals are particularly vulnerable to external radiation interference due to their proximity to the outdoor unit casing. This results in a decrease in the product's electromagnetic immunity (EMS) performance; in other words, miniaturized design leads to a decline in overall electromagnetic compatibility (EMC) performance. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a filter assembly, an outdoor air conditioning unit, and an air conditioner, which can effectively improve the overall EMC performance of the product.

[0004] In a first aspect, embodiments of this application provide a filtering component applied to an electrical appliance, including a circuit board. 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 at one end of the circuit board; the two ends of the first connection terminal are electrically connected to the input terminal and the power supply output terminal of the first electronic device, respectively; the two ends of the second connection terminal are electrically connected to the output terminal and the input terminal of the rear circuit board, respectively; the circuit board is fixed to the housing of the electrical appliance.

[0005] According to some embodiments of this application, the filtering component further includes an insulating base, and at least two first connection terminals and at least two second connection terminals are respectively provided. At least two first connection terminals and at least two second connection terminals are connected to the base, and each first connection terminal and each second connection terminal is provided with a pin soldered to the circuit board.

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

[0007] According to some embodiments of this application, the first connection 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 for connection with the screw, and the end of the first conductive sheet is provided with the pin.

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

[0009] According to some embodiments of this application, the second connection terminal includes a second conductive sheet, which is fixed to the base. One end of the second conductive sheet is configured as a insert structure, and the other end is provided with the pin.

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

[0011] According to some embodiments of this application, the circuit board is provided with a connector, one end of which is welded and fixed to the circuit board, and the other end is provided with a connection hole, which is connected to the housing by a fastener.

[0012] Secondly, this application also provides an outdoor unit for an air conditioner, including a housing, an electronic control board, and the filter assembly described in the first aspect. The electronic control board is disposed inside the housing, the second connection terminal is connected to the electronic control board via a connection wire, and the circuit board is fixed to the housing.

[0013] According to some embodiments of this application, the electronic control board is provided with an electronic control connection terminal, the electronic 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 electronic control board.

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

[0015] According to some embodiments of this application, the electronic control board is provided with an electronic control connection terminal, and the electronic 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 electronic control connection terminal and the control circuit of the electronic control board.

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

[0017] Thirdly, embodiments of this application also provide an air conditioner, including an outdoor unit as described in the second aspect above.

[0018] The technical solution according to the embodiments of this application has at least the following beneficial effects: This application embodiment provides a filtering first electronic device on one side of a circuit board, with a first connection terminal and / or a second connection terminal at one end of the circuit board. The first electronic device, the first connection terminal, and the second connection terminal form a filtering assembly. The two ends of the first connection terminal are electrically connected to the input terminal and the power supply output terminal of the first electronic device, respectively. The two ends of the second connection terminal are electrically connected to the output terminal of the first electronic device and the input terminal of the rear circuit board, respectively. The circuit board is a separate component and is fixedly connected to the appliance's housing, separated from the rear circuit board, replacing the indoor / outdoor connection terminals of related technologies. This places the first electronic device closest to the power supply line, effectively filtering out external radiated interference, making it suitable for air conditioners or other appliances and improving the appliance's EMS performance. Furthermore, compared to placing the filtering circuit on a rear circuit board such as a control board, this application increases the distance between the first electronic device and the control board, which helps reduce electromagnetic coupling between magnetic components and improves the product's EMI performance. Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0020] Figure 1 This is a schematic diagram of the frame of an outdoor air conditioner unit according to one embodiment of this application; Figure 2 This is a schematic diagram of the frame of an outdoor air conditioner unit according to another embodiment of this application; Figure 3 This is a schematic diagram of the frame of an outdoor air conditioner unit according to another embodiment of this application; Figure 4 This is a schematic diagram of the frame of an outdoor air conditioner unit according to another embodiment of this application; Figure 5 This is a three-dimensional schematic diagram of a filtering component with one viewpoint provided in one embodiment of this application; Figure 6 This is a three-dimensional schematic diagram of a filtering component from another perspective, provided by one embodiment of this application; Figure 7 This is a side view of a filtering component provided in one embodiment of this application; Figure 8 This is a perspective view of a base provided in one embodiment of this application; Figure 9 This is a top view of a base provided in one embodiment of this application; Figure 10 yes Figure 9 A cross-sectional view along the AA direction; Figure 11 This is a perspective view of a first connection terminal provided in one embodiment of this application; Figure 12 This is a side view of a first connection terminal provided in one embodiment of this application; Figure 13 This is a perspective view of a second connection terminal provided in one embodiment of this application; Figure 14 This is a side view of the second connection terminal provided in one embodiment of this application; Figure 15 This is a schematic diagram of the installation structure of the filter component provided in the embodiment of this application inside the housing of the air conditioner outdoor unit; Figure 16 yes Figure 15 Enlarged structural diagram at point B; Figure 17 This is a side view of the housing of the outdoor unit of the air conditioner provided in the embodiment of this application; Figure 18 This is a top view of the filter assembly provided in the embodiment of this application within the casing of the outdoor unit of an air conditioner.

[0021] Figure label: Box body 100; side panel 110; sheet metal part 111; opening 112; middle partition 120; Filter assembly 200; first connecting terminal 210; first soldering pin 211; first conductive sheet 212; screw 213; first plug-in portion 214; first snap-fit ​​structure 2141; metal gasket 215; second connecting terminal 220; second soldering terminal 221; second conductive sheet 222; insert structure 223; first insert 2231; second insert 2232; second plug-in portion 224; second snap-fit ​​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; 300; control circuit 310; PFC inductor 311; transformer 312; electrical control connection terminal 320; local filter circuit 330; 400 connecting wire; 410 magnetic ring; 500m power supply and communication lines; Second filter circuit 600; Electrical control box 700; Fan 800; Compressor 900; Air conditioner outdoor unit 1000. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0026] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0027] In some cases, to meet safety, waterproofing, and vibration requirements, the electrical control board of the outdoor unit of an air conditioner is typically installed inside the unit's casing. To provide power and communication signals to the control board, indoor / outdoor connection terminals are usually installed on the outdoor unit's casing. One side of the indoor / outdoor connection terminal is used to connect to the external power supply and communication lines, while the other side is used to connect to the control board. In related technologies, to meet EMC requirements, a filter circuit is usually installed on the control board near the control board connection terminals.

[0028] Air conditioner outdoor units typically utilize various magnetic components, including magnetic rings, common-mode inductors, transformers, and PFC inductors. For example, the filter circuit on the control board incorporates a common-mode inductor, while other circuits on the control board include transformers and PFC inductors. With the increasing integration and miniaturization of air conditioner housings and electronic controls, electromagnetic coupling is prone to occur between these magnetic components. For instance, electromagnetic coupling can occur between PFC inductors and common-mode inductors, or between transformers and common-mode inductors. Furthermore, high-frequency magnetic components such as PFC inductors and transformers are prone to generating electromagnetic radiation. This electromagnetic coupling and radiation from magnetic components leads to EMI (Electromagnetic Interference) problems. Moreover, the magnetic ring-loaded connection wires between the electronic control terminals and the indoor / outdoor connection terminals are easily affected by external radiation from the outdoor unit due to their proximity to the outdoor unit housing, resulting in decreased EMS (Electromagnetic System) performance. In other words, miniaturized design leads to a decline in overall EMS performance.

[0029] Electromagnetic coupling refers to the phenomenon where a changing electric field generates a magnetic field, and a changing magnetic field becomes an electric field. The magnetic and electric fields complement and influence each other. Electromagnetic radiation refers to the transmission of momentum and energy in space in the form of waves by electric and magnetic fields that oscillate in the same direction and are perpendicular to each other. The direction of propagation is perpendicular to the plane formed by the electric and magnetic fields. The interaction and change of the electric and magnetic fields generate electromagnetic waves, which are emitted or propagated into the air to form electromagnetic radiation.

[0030] Based on the above, this application proposes an outdoor unit 1000 for air conditioning, which aims to improve the overall EMC performance of the product.

[0031] The various embodiments of the air conditioner outdoor unit 1000 of this application will be further described below with reference to the accompanying drawings.

[0032] Reference Figure 1 As shown, the outdoor unit 1000 of this application embodiment includes a housing 100, a filter assembly 200, and an electronic control board 300. Both the filter assembly 200 and the electronic control board 300 are installed inside the housing 100 and are electrically connected. The electronic control board 300 is mainly used to control the operation of the compressor 900, fan 800, and other equipment of the outdoor unit 1000, ensuring that the air conditioner can operate efficiently and stably. The housing 100, as the casing of the outdoor unit 1000, protects the compressor 900, fan 800, electronic control board 300, and filter assembly 200, meeting safety, waterproof, and vibration requirements.

[0033] Reference Figure 1 As shown, the filter assembly 200 includes a circuit board 230, a first connection terminal 210, and a second connection terminal 220. The first and second connection terminals 210 and 220 are disposed on the circuit board 230. The circuit board 230 is provided with a first electronic device 2301 for filtering, which is located on one side of the circuit board 230. One end of the first connection terminal 210 is electrically connected to the input terminal of the first electronic device 2301, and the other end of the first connection terminal 210 is electrically connected to the output terminal of the power supply, which can be understood as the power supply and communication line 500 of the outdoor unit 1000 of the air conditioner. One end of the second connection terminal 220 is connected to the output terminal of the first electronic device 2301, and the other end of the second connection terminal 220 is electrically connected to the input terminal of the rear circuit board, which is the electronic control board 300 of the outdoor unit 1000 of the air conditioner. It should be noted that when the filter assembly 200 is applied to other electrical appliances, the rear circuit board can be understood as the control circuit board, power board, or other circuit boards of the appliance.

[0034] 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 and output terminals of the first filter circuit 231, respectively. The first connection terminal 210 is used to connect to the power supply and communication line 500, and the second connection terminal 220 is connected to the control board 300 via a connection line 400. It can be understood that the circuit board 230 is a printed circuit board structure, serving as the carrier for the first filter circuit 231, the first connection terminal 210, and the second connection terminal 220. The circuit board 230 is connected to the housing 100, so that both the first connection terminal 210 and the second connection terminal 220 are fixed on the housing 100, facilitating the connection of the first connection terminal 210 to the external power supply and communication line 500. The first electronic device 2301 specifically includes components such as capacitors, inductors, and resistors, which together form the first filter circuit 231. The first filter circuit 231 can specifically be an LC filter circuit, an LCR filter circuit, or other forms of filter circuit.

[0035] It should be noted that the control board 300 can be fixedly connected to the enclosure 100 through the control box 700. For example, the control box 700 can be connected to the partition 120 or the inner wall inside the enclosure 100.

[0036] It is understood that the simultaneous provision of the first connection terminal 210 and the second connection terminal 220 on the circuit board 230 facilitates the connection of the filter component 200 to the control board 300 and the power supply and communication line 500. This is merely an example; in some embodiments, the circuit board 230 may optionally be provided with either the first connection terminal 210 or the second connection terminal 220. For example, the first connection terminal 210 may be located at one end of the circuit board 230, and the second connection terminal 220 may be located on the housing 100 or the control board 300; or, for instance, the second connection terminal 220 may be located at one end of the circuit board 230, and the first connection terminal 210 may be located on the housing 100.

[0037] Understandably, in related technologies, the control board 300 typically integrates a filter circuit, and two sets of indoor and outdoor connection terminals are connected to the housing 100. One set is connected to the external power supply and communication line 500, and the other set is connected to the control board 300 via a connecting line 400 with a magnetic ring 410. Since the connecting line 400 with the magnetic ring 410 is close to the indoor and outdoor connection terminals, it is easily affected by external radiation interference from the outdoor unit 1000 of the air conditioner, which causes a decrease in the product's EMS performance. In other words, the miniaturization design of the product leads to a decrease in overall EMS performance.

[0038] Therefore, in this embodiment, the first filter circuit 231, together with the first connection terminal 210 and the second connection terminal 220, forms a filter assembly 200, replacing the two sets of indoor and outdoor connection terminals in related technologies. This places the first filter circuit 231 closest to the power supply and communication line 500, effectively filtering out external radiated interference and improving the EMS performance of the outdoor unit 1000. Furthermore, this filter assembly 200 possesses both EMC filtering electrical properties and mechanical properties for fixed installation with the power supply and communication line 500 and the connection line 400.

[0039] Furthermore, since this application places the filter component 200 in the housing 100 and separates it from the control board 300 (for example, taking the control board 300 installed in the partition 120 as an example), compared to integrating the filter circuit and the control board 300 into one unit, this application increases the distance between the first filter circuit 231 and the control board 300 by separating the filter component 200 from the control board 300. This increases the distance between the common-mode inductor of the first filter circuit 231 and magnetic components such as the PFC inductor 311 and the transformer 312, which helps to reduce electromagnetic coupling between magnetic components and improve the product's EMI performance. Moreover, the magnetic ring 410 of the connecting line 400 is located between the control board 300 and the second connecting terminal 220, meaning that the magnetic ring 410 is less susceptible to radiation interference from outside the air conditioner outdoor unit 1000, thus improving the product's EMS performance.

[0040] Reference Figure 1 As 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. This eliminates the need to lay out the filter circuit on the control board 300, saving space on the control board 300, which helps to reduce the size of the control board 300 and improves the optimization space of the product.

[0041] Reference Figure 2 As shown, in some embodiments, the outdoor unit 1000 of the air conditioner includes a filter assembly 200 and a second electronic device. The second electronic device includes a second filter circuit 600. The filter assembly 200 includes a first filter circuit 231, a first connection terminal 210, and a second connection terminal 220. The first connection terminal 210 is connected to the first filter circuit 231 and is used to connect to a power supply and communication line 500. Specifically, multiple first connection terminals 210 are provided. The power supply and communication line 500 includes power lines and signal lines. Some of the first connection terminals 210 are used to connect to the power lines, and others are used to connect to the signal lines. 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 via a connection line 400, and the other end is connected to the control circuit 310 of the electronic control board 300.

[0042] Because this embodiment integrates the first filter circuit 231, the first connection terminal 210, and the second connection terminal 220 into a filter component 200, and this filter component 200 can be installed on the housing 100 of the outdoor unit 1000 of the air conditioner, replacing the original two sets of indoor and outdoor connection terminals, the first filter circuit 231 is located closest to the power supply and communication line 500, which can effectively filter out external radiated interference and improve the product's 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, reducing the electromagnetic coupling between magnetic devices and improving the product's EMI performance. In addition, the second filter circuit 600 can further filter out electromagnetic radiation interference. The combination of the first filter circuit 231 and the second filter circuit 600 forms a two-stage filter circuit topology, improving the product's EMI filtering performance.

[0043] Reference Figure 2 As shown, specifically, in this embodiment, the electronic control board 300 is provided with a local filter circuit 330, and the connecting line 400 is provided with a magnetic ring 410. The local filter circuit 330 and the magnetic ring 410 form a second filter circuit 600.

[0044] It is understandable that the magnetic ring 410 can be equivalent to a small common-mode inductor. Therefore, the local filter circuit 330 can form a second filter circuit 600 with the magnetic ring 410, thereby forming a two-stage filter 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.

[0045] Specifically, the filter component 200 consists of a first connection terminal 210, a second connection terminal 220, and a first filter circuit 231, serving as the first-stage EMC filter topology of the air conditioner outdoor unit 1000. The local filter circuit 330 can be composed of LC devices to form an LC filter circuit, or it can be implemented using a Y capacitor. The local filter circuit 330 and the magnetic ring 410 cooperate to form a second filter circuit 600, serving as the second-stage EMC filter topology of the air conditioner outdoor unit 1000, thus forming a two-stage filter topology.

[0046] Reference Figure 4As shown, in some embodiments, the local filter circuit 330 includes capacitors CY3 and CY4, and at least one of capacitors CY3 and CY4 can be provided respectively. One end of each capacitor is connected to the connecting line 400, and the other end is grounded. Since the magnetic ring 410 is equivalent to a common-mode inductor, this embodiment can add multiple capacitors to the control board 300 of the outdoor unit 1000 of the air conditioner, forming a first-stage LC filter circuit with the connecting line 400 containing the magnetic ring 410. In other words, multiple capacitors and the magnetic ring 410 cooperate to form a second electronic device, thus forming 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.

[0047] It should be noted that the local filter circuit 330 on the electronic control board 300, in addition to Figure 4 The example shown uses two capacitors, but it can also be composed of other LCR devices (inductor L, capacitor C, and resistor R). This application does not specifically limit the embodiments in this way.

[0048] Reference Figure 3 As shown, in some embodiments, the second filter circuit 600 is disposed on the electronic control board 300, that is, the second filter circuit 600 on the electronic control board 300 can perform the filtering function by itself, without needing to be combined with the magnetic ring 410 to achieve the filtering function. In order for the second filter circuit 600 on the electronic control board 300 to perform the filtering function by itself, a common-mode inductor can be provided in the second filter circuit 600, that is... Figure 2 The equivalent common-mode inductance of the 410 magnetic ring can also be Figure 3 The common-mode inductor on the second filter circuit 600 shown is used to achieve this.

[0049] It should be noted that, for Figure 3 The connecting wire 400 in the outdoor unit 1000 of the air conditioner shown can be a connecting wire 400 with a magnetic ring 410 or a connecting wire 400 without a magnetic ring 410. This application embodiment does not specifically limit it in this way.

[0050] In some embodiments, the first filter circuit 231 described above can be adopted as follows: Figure 4 The circuit structure shown 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.

[0051] The following reference Figures 5 to 14 The structure of the filter component 200 is described in detail below. Figures 5 to 7 A schematic diagram of a filtering component 200 provided in one embodiment of this application is shown; Figures 8 to 10 This illustration shows an assembly structure diagram of a base 240, a first connecting terminal 210, and a second connecting terminal 220 provided in one embodiment of this application. Figures 11 to 12 This paper shows a schematic diagram of the structure of a first connection terminal 210 provided in one embodiment of the present application; Figures 13 to 14 A schematic diagram of the structure of a second connection terminal 220 provided in one embodiment of this application is shown.

[0052] 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, so as to... Figure 4 The LC filter topology circuit structure shown is used as the first filter circuit 231. The circuit board 230 has a first side and a second side arranged opposite to each other. In this 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 devices of the first filter circuit 231 are 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.

[0053] It is understood that the base 240 is made of insulating material. First connecting terminals 210 and second connecting terminals 220 are disposed on the base 240. Three of each type of terminal are provided, arranged along the left-right direction of the base 240, which is aligned with its length. The three first connecting terminals 210 are used to connect to the power supply and communication line 500, and the three second connecting terminals 220 are used to connect to the connecting wire 400, which in turn connects to the control board 300. Furthermore, the base 240 is positioned at the edge of the circuit board 230, allowing the first connecting terminals 210 and second connecting terminals 220 to be distributed along the edge of the circuit board 230, facilitating the routing of power lines, signal lines, and connecting wires 400. It should be noted that adjacent connecting terminals are separated by baffles 243 to ensure that each connecting terminal is wired independently, avoiding mutual interference.

[0054] Of course, the filter component 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 into one unit. In some embodiments, the base 240 and the LC device can also be located on the same side of the circuit board 230.

[0055] Furthermore, the arrangement of the first connecting terminal 210 and the second connecting terminal 220 is not limited to the structure shown in the above embodiments. The first connecting terminal 210 and the second connecting terminal 220 can be distributed at intervals along the vertical direction of the base 240. For example, the first connecting terminal 210 can be arranged on the upper side of the base 240, and the second connecting terminal 220 can be arranged on the lower side of the base 240. The number of bases 240 is not limited to one. For example, bases 240 can be provided on both sides of the circuit board 230, with the first connecting terminal 210 distributed on one side of the base 240 and the second connecting terminal 220 distributed on the other side of the base 240. The arrangement structure of the first connecting terminal 210 and the second connecting terminal 220 can be set according to the requirements of the actual product. In addition, the specific number of the first connecting terminal 210 and the second connecting terminal 220 can be selected according to the actual application requirements and is not specifically limited.

[0056] Reference Figure 8 and Figure 9 As shown, in some embodiments, the base 240 of the filter component 200 has multiple slots on one side, where the first connecting terminal 210 and the second connecting terminal 220 can be installed and fixed. The multiple slots can be divided into two groups: the first group includes three slots and is used to install the first connecting terminal 210; the second group includes three slots and is used to install the second connecting terminal 220. It is understood that adjacent slots are separated by baffles 243 to achieve physical isolation between the connecting terminals and prevent wiring interference.

[0057] Reference Figure 8 As shown, each first connection terminal 210 and each second connection terminal 220 is provided with a pin. The pin passes through the base 240 and is connected to the circuit board 230. The pins of each connection terminal are fixedly connected to the circuit board 230 by soldering, so as to realize the electrical connection between the first connection terminal 210, the second connection terminal 220 and the first filter circuit 231.

[0058] Reference Figure 11 and Figure 12 As shown, in some embodiments, the first connection terminal 210 includes a first conductive sheet 212 and a screw 213. The first conductive sheet 212 is provided with a screw hole for connection with the screw 213. The end of the first conductive sheet 212 is provided with a lead, which is a first soldering lead 211. The first conductive sheet 212 and the screw 213 are connected and combined to form a solderable combination screw. The first soldering lead 211 passes through the base 240 and is soldered to the circuit board 230, thereby realizing the connection between the first connection terminal 210 and the circuit board 230.

[0059] In some embodiments, the first slot 241 of the base 240 may have 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 to the circuit board 230.

[0060] Reference Figure 11 and Figure 12 As shown, the first conductive piece 212 is a bent insert. A screw hole is provided on one side of the bent insert, and a screw 213 can be movably inserted into this screw hole to clamp and fix the power line or signal line. In some embodiments, a metal washer 215 is provided between the head of the screw 213 and the screw hole, enabling the screw 213 to more firmly clamp the circuit and ensure connection stability. Additionally, a first soldering pin 211 is provided on the other side of the bent insert. This first soldering pin 211 can pass through the base 240 and be soldered to the circuit board 230.

[0061] Reference Figure 11 and Figure 12 As shown, it should be noted that the two ends of the first conductive sheet 212 are bent to form a first insertion portion 214, one of which is provided with a first welding pin 211. The first insertion portion 214 can be inserted into the first through hole 2411 for fixation. In the embodiment, the edge of the first insertion portion 214 has a serrated first snap-fit ​​structure 2141. The serrated structure can effectively increase the friction between the bent insert and the inner wall of the first through hole 2411, making the connection between the first conductive sheet 212 and the base 240 more firm and reliable, and avoiding the first conductive sheet 212 from becoming loose and affecting the conductivity.

[0062] Reference Figure 10 As shown, during assembly, the first connector 214 is inserted into the base 240 and secured by a serrated structure. The head of the screw 213 protrudes from the first slot 241, and the first solder pin 211 extends from the bottom of the base 240. Because the first conductive sheet 212 is fixed to the base 240 through the first connectors 214 at both ends, the mounting structure of the screw 213 is made more secure and reliable.

[0063] Of course, this is just an example. The first plug-in part 214 is not limited to adopting a serrated first snap-fit ​​structure 2141. The first plug-in part 214 can also be connected to the base 240 by interference fit, snap-fit ​​or other snap-fit ​​methods.

[0064] Reference Figure 13 and Figure 14As shown, in some embodiments, the second connection terminal 220 includes a second conductive sheet 222. One end of the second conductive sheet 222 is provided with a plug structure 223, and the other end is provided with a pin. Specifically, the pin is a second soldering pin. The second conductive sheet 222 can be referred to as a solderable plug. The second soldering pin passes through the base 240 and is soldered to the circuit board 230.

[0065] 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 to the circuit board 230.

[0066] Reference Figure 13 and Figure 14 As shown, the insert structure 223 includes a first insert 2231 and a second insert 2232, which are arranged in parallel. The first insert 2231 and the second insert 2232 are used to connect to the connecting line 400. Specifically, the connecting line 400 can be plugged into the first insert 2231 and the second insert 2232 through the plug-in terminal to realize the quick connection between the connecting line 400 and the second connecting terminal 220. Compared with the connection method of a single insert, the embodiment of this application uses the first insert 2231 and the second insert 2232 to plug in at the same time, which makes the structure more reliable.

[0067] In some embodiments, the first insert 2231 and the second insert 2232 can be integrally bent from a second conductive sheet 222; alternatively, two second conductive sheets 222 can be used to form the first insert 2231 and the second insert 2232 respectively, and then the two second conductive sheets 222 can be stacked together to form a solderable insert, with a second soldering pin formed at the end of one of the second conductive sheets 222, and the two second conductive sheets 222 can be stacked by soldering.

[0068] Reference Figure 13 As shown, in some embodiments, the end of the second conductive sheet 222 away from the insert structure 223 is provided with a second insertion portion 224. The second insertion portion 224 can be inserted into the second through hole 2421 for fixation, and a second welding pin is formed at the end of the second insertion portion 224. Specifically, the edge of the second insertion portion 224 has a serrated second snap-fit ​​structure 2241. The serrated structure can effectively increase the friction between the second conductive sheet 222 and the inner wall of the second through hole 2421, making the connection between the second conductive sheet 222 and the base 240 more firm and reliable, and preventing the second conductive sheet 222 from becoming loose.

[0069] Reference Figure 10As shown, during assembly, the second insertion part 224 is inserted into the second through hole 2421 of the base 240 and locked in place by a serrated structure. The first insert 2231 and the second insert 2232 are exposed in the second slot 242, and the second solder pin protrudes from the bottom of the base 240. Of course, this is only an example, and the second insertion part 224 is not limited to using a serrated second locking structure 2241. The second insertion part 224 can also be connected to the base 240 by interference fit, snap-fit, or other locking methods.

[0070] It should be noted that the first connecting terminal 210 and the second connecting terminal 220 mentioned above can be a left-right integrated structure, a top-bottom integrated structure, a left-right separated structure, or a top-bottom separated structure, etc. The embodiments of this application do not specifically limit this.

[0071] Reference Figure 6 and Figure 7 As shown, in some embodiments, the circuit board 230 is provided with a connector 250 for connecting to the housing 100. One end of the connector 250 is provided with pins that are soldered to the circuit board 230, and the other end is provided with a connection hole 251. Fasteners are used to pass through the connection hole 251 and connect to the mounting holes on the housing 100. The fasteners can be screws, rivets or other connecting parts to achieve a fixed connection between the circuit board 230 and the housing 100 of the outdoor unit 100 of the air conditioner, so that the filter assembly 200 can be fixed to the housing 100.

[0072] Reference Figures 15 to 18 As shown, where, Figure 15 A front view of the interior structure of the outdoor unit 1000 of an air conditioner according to an embodiment of this application is shown; Figure 17 A side view of the outdoor unit 1000 of an air conditioner according to an embodiment of this application is shown; Figure 18 A top view of the internal structure of the outdoor unit 1000 of an air conditioner according to an embodiment of this application is shown.

[0073] Based on the filter components 200 of the above embodiments, various embodiments of the air conditioner outdoor unit 1000 of this application are presented below.

[0074] In some embodiments, the outdoor unit 1000 of the air conditioner in this application includes the filter component 200 of any of the above embodiments.

[0075] It is understood that the filter assembly 200 in this embodiment is installed on the side plate 110 of the housing 100 of the outdoor unit 100 of the air conditioner. Specifically, an opening 112 is provided on the side plate 110 of the housing 100, and a sheet metal part 111 extending toward the interior of the housing 100 is formed on one side of the opening 112. The connector 250 of the circuit board 230 in this embodiment is fixedly connected to the sheet metal part 111 by screws, thereby realizing the assembly of the filter assembly 200 and the housing 100. This is only an example, and the filter assembly 200 may also be implemented through other forms of installation. This embodiment does not specifically limit this.

[0076] It is worth noting that, since the air conditioner outdoor unit 1000 of this application embodiment includes the filter component 200 of any of the above embodiments, the specific implementation and technical effects of the air conditioner outdoor unit 1000 of this application embodiment can be referred to the specific implementation and technical effects of the filter component 200 of any of the above embodiments.

[0077] In some embodiments, such as Figure 1 As shown, the outdoor unit 1000 of the air conditioner also includes an electronic control board 300, which is provided with an electronic control connection terminal 320. The electronic control connection terminal 320 is connected to the second connection terminal 220 in the filter assembly 200 through a connection cable 400.

[0078] In some embodiments, the control circuit 310 on the electronic control board 300 is typically equipped with a PFC inductor 311, a transformer 312, or other magnetic devices. It should be noted that in this embodiment, the first filter circuit 231, the first connection terminal 210, and the second connection terminal 220 are combined to form a filter component 200, which replaces the indoor and outdoor connection terminals of related technologies. This can effectively filter out radiation interference from the outside and improve the EMS performance of the outdoor unit 1000 of the air conditioner.

[0079] In some embodiments, the connection line 400 between the electronic control connection terminal 320 and the second connection terminal 220 can be a connection line 400 with a magnetic ring 410 or a connection line 400 without a magnetic ring 410. This application embodiment does not specifically limit this.

[0080] The connecting wire 400 with a magnetic ring 410 reduces electromagnetic interference and improves the system's electromagnetic compatibility. In an air conditioning system, the electrical components of the outdoor unit 1000 may generate or be subject to electromagnetic interference from other electronic devices. This interference may affect the normal operation of the air conditioner, reduce efficiency, or even cause malfunctions. The magnetic ring 410 serves several functions, including but not limited to: First, suppressing high-frequency noise: The magnetic ring 410 suppresses high-frequency noise on the connecting wire 400, which may originate from the electronic control unit or other electronic components inside the outdoor unit. Second, reducing current surges: When the outdoor unit starts or stops, the current may surge significantly. The magnetic ring 410 helps smooth these current surges, protecting the connecting wire 400 and the electronic components inside the outdoor unit. Third, improving signal transmission quality: For connecting wires 400 carrying control signals, the magnetic ring 410 reduces interference during signal transmission, ensuring clear and accurate signals. Fourth, filtering: The magnetic ring 410 acts as a low-pass filter, filtering out unwanted high-frequency signals and allowing only low-frequency, useful signals to pass through. Fifth, enhance system stability: By reducing electromagnetic interference, the magnetic ring 410 helps improve the stability and reliability of the entire air conditioning system.

[0081] In some embodiments, the filter assembly 200 is installed on the sheet metal side of the casing 100 of the outdoor unit 100 of the air conditioner. The sheet metal side of the casing 100 of the outdoor unit 1000 typically refers to the housing portion of the outdoor unit 1000, which primarily protects the internal compressor 900, condenser, fan, and other electrical components. Alternatively, the filter assembly 200 may be installed in other ways, which are not specifically limited in this embodiment.

[0082] Based on the air conditioner outdoor unit 1000 of the above embodiments, the following presents various embodiments of the air conditioner of this application.

[0083] In some embodiments, the air conditioner of this application includes, but is not limited to, the outdoor unit 1000 of any of the above embodiments.

[0084] It is worth noting that since the air conditioner in this application embodiment includes the air conditioner outdoor unit 1000 of any of the above embodiments, the specific implementation method and technical effect of the air conditioner in this application embodiment can refer to the specific implementation method and technical effect of the air conditioner outdoor unit 1000 of any of the above embodiments.

[0085] It should be noted that the filter component 200 in the above embodiments is not limited to air conditioners. As a standalone filter component, it can also be applied to appliances such as refrigerators and washing machines, and can effectively improve the EMI performance of the products.

[0086] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0087] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0088] The above provides a detailed description of the preferred embodiments of this application. However, this application is not limited to the above-described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A filtering component, applied to electrical appliances, 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; the two ends of the first connection terminal are electrically connected to the input terminal and the power supply output terminal of the first electronic device, respectively; the two ends of the second connection terminal are electrically connected to the output terminal and the input terminal of the rear circuit board, respectively. The circuit board is fixed to the housing of the electrical appliance.

2. The filtering component according to claim 1, characterized in that, The filtering component also includes an insulating base. At least two first connection terminals and at least two second connection terminals are provided. At least two first connection terminals and at least two second connection terminals are connected to the base. Each first connection terminal and each second connection terminal is provided with a pin that is soldered to the circuit board.

3. The filtering component according to claim 2, characterized in that, The circuit board has a first side and a second side facing away from each other. The first electronic device is arranged on the first side, the base is arranged on the second side, the first connection terminal and the second connection terminal are arranged on the side of the base away from the circuit board, and the pin passes through the base and is connected to the circuit board.

4. The filtering component according to claim 2, characterized in that, The first connection 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 for connection with the screw. The end of the first conductive sheet is provided with the pin.

5. The filtering component according to claim 4, characterized in that, The two ends of the first conductive sheet are bent to form a first plug-in portion that engages with the base, and the pin is formed at the end of one of the first plug-in portions.

6. The filtering component according to claim 2, characterized in that, The second connection terminal includes a second conductive sheet, which is fixed to the base. One end of the second conductive sheet is configured as a insert structure, and the other end is provided with the pin.

7. The filtering component according to claim 6, characterized in that, The insert structure includes a first insert and a second insert arranged in parallel. The end of the second conductive plate away from the insert structure is provided with a second insertion portion that engages with the base. The pin is formed at the end of the second insertion portion.

8. The filtering component according to claim 1, characterized in that, 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 connection hole. The connection hole is connected to the housing by a fastener.

9. An outdoor unit for an air conditioner, characterized in that, include: case; The electronic control board is located inside the housing; The filtering component as described in any one of claims 1 to 8, wherein the second connection terminal is connected to the electronic control board via a connection line, and the circuit board is fixed to the housing.

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

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

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

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

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

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