Anti-interference device and electrical equipment

Abstract

The utility model provides an anti-interference device and electrical equipment. The anti-interference device comprises a PCB (Printed Circuit Board) and an anti-interference component fixed on the PCB, the anti-interference component comprises a component body, a wire harness of a target device is wound on the component body, and the wire harness of the target device is connected with the PCB through the anti-interference component. According to the scheme, stable installation of anti-interference components can be ensured, and mutual interference between devices is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of anti-interference, and particularly to an anti-interference device and an electrical equipment. Background Art

[0002] With the continuous development of science and technology, many electrical equipments that bring convenience to users' lives are widely used, such as washing machines, washing and drying integrated machines, etc. For electrical equipments, electromagnetic compatibility (EMC) can make the equipment neither interfere with other equipments nor be affected by other equipments, which is one of the important indicators of electrical equipments. Therefore, how to improve the electromagnetic compatibility of electrical equipments is an urgent problem to be solved at present. Utility Model Content

[0003] In a first aspect, the present disclosure provides an anti-interference device, including:

[0004] A PCB board and an anti-interference component fixed on the PCB board;

[0005] The anti-interference component includes a component body, on which a wire harness of a target device is wound, and the wire harness of the target device is connected to the PCB board through the anti-interference component.

[0006] In some embodiments, the anti-interference device further includes:

[0007] A fixing member, and the anti-interference component is fixed on the PCB board through the fixing member.

[0008] In some embodiments, the fixing member is a first solder joint on the PCB board, and the first solder joint is used to weld the anti-interference component on the PCB board.

[0009] In some embodiments, the fixing member is a second solder joint on the PCB board, and the second solder joint is used to weld the wire harness wound on the component body on the PCB board, so that the anti-interference component is fixed on the PCB board.

[0010] In some embodiments, the fixing member includes a first engaging mechanism provided on the PCB board and a second engaging mechanism provided on the anti-interference component, and the anti-interference component is fixed on the PCB board through the cooperative connection of the first engaging mechanism and the second engaging mechanism.

[0011] In some embodiments, one of the first engaging mechanism and the second engaging mechanism is a slot, and the other is a buckle.

[0012] In some embodiments, the anti-interference component further includes a housing, and the second engaging mechanism is disposed on the housing.

[0013] In some embodiments, the component body is a magnetic ring.

[0014] In some embodiments, when the anti-interference component is fixed on the PCB board, the side wall of the magnetic ring is parallel to the surface of the PCB board.

[0015] In a second aspect, the present disclosure provides an electrical device, including:

[0016] A target device and an anti-interference device;

[0017] The anti-interference device includes a PCB board and an anti-interference component fixed on the PCB board;

[0018] The anti-interference component includes a component body, and a wire harness of the target device is wound around the component body. The wire harness of the target device is connected to the PCB board through the anti-interference component.

[0019] In some embodiments, the target device is a motor, and the wire harness of the target device is three-phase wires of the motor.

[0020] In some embodiments, the wire harness of the target device is an enameled wire.

[0021] In some embodiments, the electrical device is a washing machine.

[0022] One or more technical solutions provided by the present disclosure at least achieve the following technical effects or advantages:

[0023] The anti-interference device provided by the present disclosure includes a PCB board and an anti-interference component fixed on the PCB board. The anti-interference component includes a component body, and a wire harness of the target device is wound around the component body. The wire harness of the target device is connected to the PCB board through the anti-interference component. In this solution, by winding the wire harness of the target device around the anti-interference component, the interference signal in the wire harness can be weakened, so that the operation of the target device will not interfere with other devices in the environment, and the interference of other devices on the target device is also reduced. In addition, by fixing the anti-interference component on the PCB board, the stable installation of the anti-interference component can be ensured, avoiding the collision of the anti-interference component with other devices or structures, and further improving the performance of the anti-interference component. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of an anti-interference device according to some embodiments of the present disclosure is shown;

[0025] Figure 2A schematic diagram of an electrical device showing some embodiments of the present disclosure. Detailed implementation manners

[0026] To better understand the above technical solution, the technical solution of the embodiments of the present utility model will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present utility model are detailed descriptions of the technical solution, rather than limitations to the technical solution of the present utility model. Without conflict, the technical features in the embodiments of the present utility model can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that all directional indications in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0030] Figure 1 A schematic diagram of an anti-interference device provided by an embodiment of the present disclosure is shown. As Figure 1As shown in the figure, the anti-interference device 100 provided by the present disclosure may include: a PCB board 110 and an anti-interference component 120 fixed on the PCB board 110; the anti-interference component 120 includes a component body 121, and a wire harness of the target device 200 is wound around the component body 121, and the wire harness of the target device 200 is connected to the PCB board 110 through the anti-interference component 120.

[0031] In the embodiments of this specification, the anti-interference device 100 can be applied to electrical appliances, such as washing machines, washing and drying integrated machines, etc. The target device 200 can be a component in the electrical appliance. Taking the electrical appliance as a washing machine as an example, the target device 200 can be devices such as the motor and water pump of the washing machine.

[0032] The PCB board 110 can be a circuit board electrically connected to the target device 200, and communication can be carried out between the PCB board 110 and the target device 200. In some embodiments, when the target device 200 is the motor of a washing machine, the PCB board 110 can be the main control board of the washing machine or the drive circuit board of the motor.

[0033] It should be noted that the target device 200 is connected to the PCB board 110 through a wire harness. Among them, the wire harness can be used for data transmission between the target device 200 and the PCB board 110, and the wire harness can also be the power supply wire harness of the target device 200, which is not limited here. During the operation of the target device 200, it may be affected by interference signals generated by other charged components, and it may also generate signals that interfere with other components. In order to reduce interference and ensure the normal operation of the target device and other components, in the embodiments of this specification, the wire harness of the target device 200 is wound around the component body 121 of the anti-interference component 120, and the anti-interference component 120 absorbs or disperses the interference signals in the wire harness to achieve the effect of reducing interference.

[0034] In the implementation of this specification, the component body 121 of the anti-interference component 120 can be a magnetic ring. The magnetic ring has good magnetic properties and electrical properties and can suppress high-frequency currents in the wire harness, thereby improving the electromagnetic compatibility of the device. The size and type of the magnetic ring can be selected according to actual needs. In some embodiments, the component body 121 can be a magnetic ring with a fixed inner diameter or a magnetic ring with a variable inner diameter. When the component body 121 is a magnetic ring with a variable inner diameter, the size of the inner diameter of the magnetic ring can be adjusted according to the number of winding turns of the wire harness to adapt to different anti-interference scenarios. When winding the wire harness around the magnetic ring, the wire harness can be inserted and wound along the side wall of the magnetic ring from the inside to the outside or from the outside to the inside.

[0035] It should be noted that the material of the magnetic ring can be selected according to actual needs. For example, the material of the magnetic ring can be PC40, ferrite, etc.

[0036] In the embodiments of this specification, in order to avoid collisions between the anti-interference component 120 and other components, the anti-interference component 120 can be fixed on the PCB board 110. In some embodiments, the anti-interference device 100 can further include a fixing member, and the anti-interference component 120 is fixed on the PCB board 110 through the fixing member.

[0037] It should be noted that the fixing member can be implemented in various ways. In some embodiments, the fixing member is the first solder joint on the PCB board, and the first solder joint is used to weld the anti-interference component 120 on the PCB board 110. The number of the first solder joints can be selected according to actual needs. For example, the number of the first solder joints can be 1, 2, 3, etc. The position of the first solder joint can also be set according to actual needs. In some embodiments, the first solder joint can be located in the empty area of the PCB board 110, that is, the area on the PCB board 110 where there are no traces and components.

[0038] A welding area matching the first solder joint can also be provided on the anti-interference component 120, and the anti-interference component 120 is fixed by welding the welding area and the first solder joint.

[0039] In some embodiments, the fixing member can be the second solder joint on the PCB board 110, and the second solder joint is used to weld the wire harness wound around the component body on the PCB board 110, so that the anti-interference component 120 is fixed on the PCB board 110.

[0040] The number of the second solder joints can be selected according to actual needs. For example, the number of the second solder joints can be 1, 2, 3, etc. The position of the second solder joint can also be set according to actual needs. In some embodiments, the second solder joint can be located in the empty area of the PCB board 110, that is, the area on the PCB board 110 where there are no traces and components.

[0041] A welding area matching the second solder joint can be provided on the wire harness wound around the anti-interference component 120. In some embodiments, the wire harness wound around the anti-interference component 120 can include an outgoing end and an incoming end, and the welding area can be provided at the outgoing end and / or the incoming end. By welding the outgoing end and / or the incoming end at the second solder joint, the anti-interference component 120 is indirectly fixed on the PCB board 110. In addition, by welding the wire harness on the PCB board 110, the function of fixing the wire harness can also be achieved, and the wire harness wound around the anti-interference component 120 is prevented from shifting.

[0042] In other embodiments, the fixing member can include a first engaging mechanism provided on the PCB board 110 and a second engaging mechanism provided on the anti-interference component 120, and the anti-interference component is fixed on the PCB board 110 through the cooperative connection between the first engaging mechanism and the second engaging mechanism.

[0043] The first engaging mechanism and the second engaging mechanism can be set according to actual needs. For example, the first engaging mechanism can be a slot, and the second engaging mechanism can be a buckle, or the first engaging mechanism can be a buckle, and the second engaging mechanism can be a slot. Among them, the position of the first engaging mechanism can be set according to actual needs. For example, the first engaging mechanism is located in the open area of the PCB board 110, that is, the area on the PCB board 110 where there are no traces and components. In some embodiments, the first engaging mechanism can be located in the edge area of the PCB board 110.

[0044] It should be noted that the slot and the buckle can be connected in cooperation, and the shapes and sizes of the slot and the buckle can be set according to actual needs. For example, the slot can be a rectangular slot, and the buckle can be a lock that can be snapped into the rectangular slot. In the embodiments of this specification, the anti-interference component 120 can also include a housing 122, as Figure 1 shown, the second engaging mechanism can be provided on the housing 122. Of course, the second engaging mechanism can also be provided on the component body 121 of the anti-interference component 120, which is not limited here.

[0045] It should be understood that the fixing member can also be other structures, and no further examples will be given here.

[0046] In the embodiments of this specification, when the anti-interference component 120 includes a housing 122, the component body 121 can be located inside the housing 122. In some embodiments, if the component body 121 is a magnetic ring, the housing 122 can be a cylindrical structure sleeved on the magnetic ring. In other embodiments, a receiving cavity is provided on the housing 122, and the component body 121 can be fixed in the receiving cavity.

[0047] In the embodiments of this specification, if the component body 121 is a magnetic ring, in order to ensure the stability of the installation of the anti-interference component 120, when fixing the anti-interference component 120, the side wall of the magnetic ring can be set parallel to the surface of the PCB board 110.

[0048] Of course, in case of insufficient installation space or other situations, the side wall of the magnetic ring can also be set perpendicular to the PCB board 110, which is not limited here.

[0049] In summary, according to some embodiments of the present disclosure, the anti-interference device can effectively reduce the mutual interference between devices and ensure the stable operation of each device. In addition, by directly fixing the anti-interference component on the PCB board, the fixing of the anti-interference component is realized, the probability of collision between the anti-interference component and other devices is reduced, the implementation is simple, and the fixing cost of the anti-interference component is saved.

[0050] Based on the same inventive concept, some embodiments of the present disclosure also provide an electrical device, such as Figure 2As shown, it is a schematic diagram of an electrical device provided by some embodiments of the present disclosure. The electrical device 300 includes: a target device 200 and an anti-interference device 100; the anti-interference device 100 includes a PCB board 110 and an anti-interference component 120 fixed on the PCB board 110; the anti-interference component 120 includes a component body 121, and the wire harness of the target device 200 is wound around the component body 121, and the wire harness of the target device 200 is connected to the PCB board 110 through the anti-interference component 120.

[0051] It should be noted that the structure of the anti-interference device 100 can refer to the description in the above text, and will not be elaborated here. In some embodiments, the target device 200 is a motor, and the wire harness of the target device 200 is the three-phase line of the motor. In order to reduce or shield the interference signals in the three-phase line of the motor, the three-phase line of the motor is wound around the component body 121 of the anti-interference component 120, so that the anti-interference component 120 absorbs or disperses the interference signals in the three-phase line.

[0052] In the embodiments of this specification, the wire harness of the target device 200 can be selected according to actual needs. In some embodiments, the wire harness of the target device 200 can be an enameled wire. Using an enameled wire can reduce the wire diameter of the wire harness, thereby increasing the range of winding turns and meeting different winding requirements. In some embodiments, the number of winding turns can be determined by a pre-conducted EMC test. Based on the number of winding turns, the corresponding magnetic ring size and type can also be determined.

[0053] In some embodiments, the electrical device 300 can be a washing machine. It should be noted that the electrical device 300 can include a device body. When the electrical device 300 is a washing machine, the device body can include but is not limited to: a housing, a touch screen, a laundry tub disposed in the housing and used for accommodating clothes, etc. The anti-interference device 100 and the target device 200 can be disposed in the housing and electrically connected to the device body.

[0054] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0055] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application. Although the exemplary embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications once they learn the basic inventive concept. Therefore, the appended claims are intended to be construed as including the exemplary embodiments as well as all changes and modifications falling within the scope of the present disclosure.

Claims

1. An anti-interference device, characterized in that: include: A PCB board and an anti-interference component fixed on the PCB board; The anti-interference component includes a component body, a wiring harness of a target device is wound around the component body, and the wiring harness of the target device is connected to the PCB board through the anti-interference component.

2. The anti-interference device according to claim 1, characterized in that: The anti-interference device also includes: A fixing member, through which the anti-interference component is fixed on the PCB board.

3. The anti-interference device according to claim 2, characterized in that: The fixing member is a first soldering point on the PCB board, and the first soldering point is used to solder the anti-interference component to the PCB board.

4. The anti-interference device according to claim 2, characterized in that: The fixing member is a second welding point on the PCB board, and the second welding point is used to weld the wire harness wound on the component body to the PCB board, so that the anti-interference component is fixed on the PCB board.

5. The anti-interference device according to claim 2, characterized in that: The fixing member includes a first locking mechanism provided on the PCB board and a second locking mechanism provided on the anti-interference component. The anti-interference component is fixed to the PCB board through the cooperation connection between the first locking mechanism and the second locking mechanism.

6. The anti-interference device according to claim 5, characterized in that: One of the first engaging mechanism and the second engaging mechanism is a slot, and the other is a buckle.

7. The anti-interference device according to claim 5, characterized in that: The anti-interference component further includes a shell, and the second engaging mechanism is provided on the shell.

8. The anti-interference device according to any one of claims 1 to 7, characterized in that: The component body is a magnetic ring.

9. The anti-interference device according to claim 8, characterized in that: When the anti-interference component is fixed on the PCB board, the side wall of the magnetic ring is parallel to the surface of the PCB board.

10. An electrical device, characterized in that: include: Target devices and anti-interference devices; The anti-interference device includes a PCB board and an anti-interference component fixed on the PCB board; The anti-interference component includes a component body, on which a wiring harness of the target device is wound, and the wiring harness of the target device is connected to the PCB board through the anti-interference component.

11. The electrical device according to claim 10, characterized in that: The target device is a motor, and the wiring harness of the target device is a three-phase line of the motor.

12. The electrical device according to claim 10 or 11, characterized in that: The wiring harness of the target device is an insulated enameled wire.

13. The electrical device according to claim 11, wherein: The electrical appliance is a washing machine.

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