Filtering assembly and vehicle

Abstract

The utility model provides a filtering assembly and a vehicle. The filtering assembly is used for a control assembly of the vehicle and comprises a connecting assembly and a circuit board, one end of the connecting assembly is used for being connected with a power signal, and the other end of the connecting assembly is used for being electrically connected with the control assembly; the circuit board is provided with a filter circuit and a bleeder circuit, and the connecting assembly is electrically connected with the filter circuit and the bleeder circuit. The filter circuit and the bleeder circuit are located on the two opposite sides of the circuit board respectively, and the connecting assembly and the circuit board are arranged in the direction perpendicular to the thickness direction of the circuit board. The filtering assembly provided by the utility model can improve the conduction test passing rate of the electric drive assembly.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a filter component and a vehicle. Background Art

[0002] Existing electric drive assemblies fail to meet the test standards for conducted noise emission. For electric drive assemblies that fail to meet the test standards, it is necessary to redesign the technical solution to solve the problem of excessive electromagnetic radiation, which not only wastes a lot of rectification time and testing costs, but also fails to achieve the ideal conducted noise filtering effect. The problem of low conduction test pass rate of electric drive assemblies needs to be solved urgently. Utility Model Content

[0003] The present application provides a filter component and a vehicle to solve the problem of low conduction test pass rate of an electric drive assembly.

[0004] The present application provides a filter component, which is used for a control assembly of a vehicle. The filter component includes a connecting component and a circuit board. One end of the connecting component is used to receive a power signal, and the other end of the connecting component is used to be electrically connected to the control assembly. The circuit board is provided with a filter circuit and a discharge circuit, and the connecting component is electrically connected to the filter circuit and the discharge circuit respectively. The filter circuit and the discharge circuit are respectively located on opposite sides of the circuit board, and the connecting component and the circuit board are arranged in a direction perpendicular to the thickness direction of the circuit board.

[0005] The power supply signal includes a positive signal and a negative signal, the connection component includes two connectors, one connector is used to connect the positive signal, and the other connector is used to connect the negative signal, and the filter component also includes an X capacitor, and both ends of the X capacitor are respectively connected to the two connectors.

[0006] The connector includes an input section, a first end of the input section is used to receive a positive signal or a negative signal, a gap is provided between the input sections of the two connectors, the X capacitor is located in the gap, and both ends of the X capacitor are electrically connected to the input sections of the two connectors respectively.

[0007] A connection platform is formed on one side of the input section facing the interval, and the connection platform is provided with at least one through hole. The X capacitor comprises a plug-in type X capacitor, and the plug-in pin of the plug-in type X capacitor is plugged into the through hole.

[0008] The filter assembly also includes a shell assembly, a circuit board and some connecting parts are arranged in the shell assembly, the connecting part also includes a connecting part extending from the end of the second end of the input section away from its first end, the filter assembly also includes a Y capacitor, one end of the Y capacitor is connected to the connecting part, and the other end of the Y capacitor is used to connect to the shell of the control assembly.

[0009] The input sections of the two connecting members are arranged along the first plane, and the connecting parts of the two connecting members extend along the vertical direction of the first plane and extend in the same direction; the vertical direction of the first plane is arranged parallel to the thickness direction.

[0010] The connecting member further includes an output section and an intermediate section. The intermediate section is electrically connected to the input section and the output section respectively and is vertically arranged. The input section and the output section are located on opposite sides of the intermediate section respectively. The output section is used to be electrically connected to the control assembly.

[0011] Wherein, at least one through hole includes more than two through holes, the through holes are arranged in the same direction, and the intervals between adjacent through holes are equal.

[0012] The filter component further comprises a port, and the first end of the input section is at least partially located in the port.

[0013] The present application provides a vehicle, which includes the above-mentioned vehicle drive system.

[0014] The beneficial effects of the present application are as follows: the filter assembly provided by the present application includes a connection assembly and a circuit board, one end of the connection assembly is used to access the power signal, and the other end of the connection assembly is used to be electrically connected to the control assembly; the circuit board is provided with a filter circuit and a discharge circuit, and the connection assembly is electrically connected to the filter circuit and the discharge circuit respectively; the filter circuit and the discharge circuit are respectively located on opposite sides of the circuit board, and the connection assembly and the circuit board are arranged in a vertical direction along the thickness direction of the circuit board. The filter assembly of this embodiment integrates the discharge circuit on the front of the circuit board, and then designs the filter parameters on the back of the circuit board according to the required frequency band requirements, and sets a filter circuit composed of electronic components such as capacitors and inductors for filtering, so that the circuit board has filtering capabilities and protection capabilities at the same time, which can improve the space utilization of the circuit board, while reducing the electromagnetic radiation of the control assembly and improving the conduction test pass rate of the control assembly. In addition, the connection assembly and the circuit board are arranged in a vertical direction along the thickness direction of the circuit board, which can reduce the size of the filter assembly in the thickness direction of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a filter assembly provided by the present application;

[0017] Figure 2 yes Figure 1 Another schematic view of the filter assembly of the embodiment;

[0018] Figure 3 yes Figure 1 A further schematic view of the filter assembly of the embodiment;

[0019] Figure 4 It is a structural schematic diagram of a vehicle embodiment provided by the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] The present application provides a filter component for a vehicle control assembly, which can be used to filter the power signal entering the control assembly to reduce the electromagnetic radiation of the control assembly, thereby improving the conduction test pass rate of the control assembly. Figures 1 to 3 , Figure 1 is a structural schematic diagram of an embodiment of a filter assembly provided by the present application, Figure 2 yes Figure 1 Another schematic view of the filter assembly of the embodiment, Figure 3 yes Figure 1Another view schematic diagram of the filter component of the embodiment, the filter component 10 includes a connecting component and a circuit board 120, one end of the connecting component is used to receive the power signal, and the other end of the connecting component is used to be electrically connected to the control assembly; the circuit board 120 is provided with a filter circuit and a discharge circuit, and the connecting component is electrically connected to the filter circuit and the discharge circuit respectively; the filter circuit and the discharge circuit are respectively located on opposite sides of the circuit board 120, and the connecting component and the circuit board 120 are arranged in a direction perpendicular to the thickness direction c of the circuit board 120.

[0024] Among them, the filter circuit can filter the power signal entering from one end of the connection component, and the filtered power signal enters the control assembly of the vehicle from the other end of the connection component. The discharge circuit provides a surge current discharge path for the power signal to protect the control assembly. Among them, the filter circuit and the discharge circuit are respectively located on the opposite sides of the circuit board 120, that is, the filter component 10 of this embodiment integrates the discharge circuit on the front of the circuit board 120, and then designs the filter parameters on the back of the circuit board 120 according to the required frequency band requirements, and sets the filter circuit composed of capacitors, inductors and other electronic components for filtering, so that the circuit board 120 has filtering capabilities and protection capabilities at the same time, which can improve the space utilization of the circuit board 120, while reducing the electromagnetic radiation of the control assembly and improving the conduction test pass rate of the control assembly. In addition, the connection component and the circuit board 120 are arranged in a direction perpendicular to the thickness direction c of the circuit board 120, which can reduce the size of the filter component 10 in the thickness direction c of the circuit board 120.

[0025] Optionally, the power supply signal includes a positive signal and a negative signal, and the connection component includes two connectors, one connector 110 is used to connect the positive signal, and the other connector 110 is used to connect the negative signal, wherein the two connectors 110 need to be arranged at intervals to avoid short circuiting of the positive signal and the negative signal. The filter component 10 also includes an X capacitor 130, and the two ends of the X capacitor 130 are respectively connected to the two connectors 110. It can be understood that the two ends of the X capacitor 130 are respectively in contact with the two connectors 110 for electrical connection, which can reduce the setting of the circuit board 120 and reduce the size of the filter component 10; further, it can shorten the routing distance between the X capacitor 130 and the two connectors 110, reduce the parasitic inductance generated by the lead, thereby improving the filtering ability of the X capacitor 130, improving the filtering ability of the filter component 10, and then improving the conduction test pass rate of the control assembly.

[0026] The connecting member 110 may specifically be a copper busbar.

[0027] Optionally, the connector 110 is connected to the X capacitor 130 by welding.

[0028] Optionally, the connector 110 includes an input section 111, a first end of the input section 111 is used to access a positive signal or a negative signal, a gap is provided between the input sections 111 of the two connectors 110, the X capacitor 130 is located in the gap, and the two ends of the X capacitor 130 are electrically connected to the input sections 111 of the two connectors 110. It can be understood that the input sections 111 of the two connectors 110 are spaced and form a space, which is the gap. The X capacitor 130 of this embodiment is located between the two input sections 111, which can reduce the distance between the X capacitor 130 and the input section 111, and the X capacitor 130 is located in the gap between the input sections 111, making full use of the space, which can reduce the occupation of the X capacitor 130 on the extra space, so that the layout of the connector 110 and the X capacitor 130 is more reasonable, and the size of the filter component 10 is reduced.

[0029] Optionally, a connection platform 111a is formed on one side of the input section 111 facing the interval, and the connection platform 111a is provided with at least one through hole 111b, and the X capacitor 130 includes a plug-in X capacitor, and the plug-in pin of the plug-in X capacitor is plugged into the through hole 111b. The plug-in pin of the plug-in X capacitor of this embodiment is plugged into the through hole 111b of the connection platform 111a, which can enhance the connection stability between the plug-in X capacitor and the connection platform 111a, and further, the plug-in pin of the plug-in X capacitor is plugged into the through hole 111b of the connection platform 111a, which can reduce the size of the filter component 10 in the axial direction of the through hole 111b.

[0030] Optionally, the connection platform 111a is in a rectangular shape, and the rectangular connection platform 111a is easy to process. For example, the connection platform 111a can be a small cuboid punched out on one side of the input section 111, and at least one through hole 111b is punched out in the center of the small cuboid. The through hole 111b can be a conical through hole 111b.

[0031] Optionally, in order to improve the filtering performance of the filter assembly 10, the filter assembly 10 includes a plurality of plug-in X capacitors, and the connection platform 111a is provided with at least two through holes 111b, and the plurality of through holes 111b are arranged in the same direction, and the distances between adjacent through holes 111b are equal. In this embodiment, at least two through holes 111b are provided on the connection platform 111a, so that the filter assembly 10 can be provided with a plurality of plug-in X capacitors in parallel, thereby improving the filtering performance of the filter assembly 10, and the distances between adjacent through holes 111b are equal, so that the mutual inductance strength generated by the X capacitors connected in parallel can be reduced by plug-in, the corresponding insertion loss can be increased, and the parasitic inductance generated by the leads can be reduced, thereby achieving a better differential mode noise filtering effect.

[0032] Optionally, the filter assembly 10 further includes a housing assembly 160, the circuit board 120 and part of the connector 110 are disposed in the housing assembly 160, the connector 110 further includes a connecting portion 112 extending from the end of the second end of the input section 111 away from the first end thereof, and the filter assembly 10 further includes a Y capacitor 140, one end of the Y capacitor 140 is connected to the connecting portion 112, and the other end of the Y capacitor 140 is used to connect to the housing assembly 160. It can be known that the second end of the input end is arranged opposite to the first end, the connector 110 is provided with a connecting portion 112 at the end of the second end, and one end of the Y capacitor 140 is connected to the connecting portion 112, so that the Y capacitor 140 is electrically connected to the input section 111, wherein the Y capacitor 140 can be arranged at the end of the second end of the input section 111 to reduce the distance between the Y capacitor 140 and the connecting portion 112. That is, in this embodiment, the connector 110 is extended to set a connecting portion 112 at the end of the second end of the input section 111 away from the first end thereof, so as to realize the shortest connection between the pin at one end of the Y capacitor 140 and the connecting portion 112, and at the same time, the pin at the other end of the Y capacitor 140 is connected to the shell assembly 160 nearby by means of a fixing member, etc., so as to ensure the shortest connection principle of the pin of the Y capacitor 140, thereby reducing the parasitic inductance generated by the lead of the Y capacitor 140, and then achieving a better common-mode noise filtering effect; further, the connection stability between the Y capacitor 140 and the connector 110 is enhanced.

[0033] Optionally, the housing component 160 may be a housing component 160 made of a metal material, or the housing component 160 may be a housing component 160 made of an insulating material.

[0034] Optionally, the filter assembly 10 may further include a fixing member, which may be used to fix the housing assembly 160, fix the circuit board 120 in the housing assembly 160, fix the two connectors 110 in the housing, etc. The other end pin of the Y capacitor 140 may be connected to the nearest metal fixing member.

[0035] Optionally, the input sections 111 of the two connectors 110 are arranged along the first plane, and the connecting portions 112 of the two connectors 110 extend in a direction perpendicular to the first plane and in the same direction; the vertical direction of the first plane is arranged parallel to the thickness direction c. The connecting portions 112 of the two connectors 110 of this embodiment extend in a direction perpendicular to the first plane and in the same direction, which can avoid short circuiting of the two connectors 110 and reduce the distance between the two ends of the Y capacitor 140 and the connecting portion 112.

[0036] In other embodiments, the connection portion 112 may also extend in a direction c perpendicular to the thickness of the circuit board 120 (refer to the width direction a of the circuit board 120 ).

[0037] Optionally, the connector 110 further includes an output section 114 and an intermediate section 113, wherein the intermediate section 113 is electrically connected to the input section 111 and the output section 114, respectively, and is vertically arranged, wherein the input section 111 and the output section 114 are respectively located on opposite sides of the intermediate section 113, and the output section 114 is used to be electrically connected to the control assembly. In the above manner, a device layout space is formed between the output section 114 and the intermediate section 113, and between the input section 111 and the intermediate section 113, and the arrangement of the circuit board 120, the X capacitor 130, and the Y capacitor 140 is more densely and reasonably arranged, so that the space volume of the filter component 10 is miniaturized; further, the input section 111 and the output section 114 are respectively located on opposite sides of the intermediate section 113, so that the input section 111 is convenient for accessing the power supply signal and the output section 114 is convenient for accessing the control assembly.

[0038] Optionally, the circuit board 120 of the present embodiment is arranged on the side of the output section 114 away from the middle section 113, the output section 114 and the input section 111 are arranged in parallel with the length direction b of the circuit board 120, the width direction a of the circuit board 120 is arranged in parallel with the middle section 113, the Y capacitor 140 is located in the space formed by the end of the second end of the output section 114, the input section 111 and the middle section 113, and the X capacitor 130 is located in the interval between the input sections 111 of the two connectors 110, wherein the thickness direction c and the length direction b of the circuit board 120 are parallel and perpendicular to the width direction a. In the above manner, the arrangement of the circuit board 120, the X capacitor 130 and the Y capacitor 140 of the present embodiment is more dense and reasonable, so that the space volume of the filter component 10 is miniaturized.

[0039] Optionally, the filter assembly 10 further includes a port 150 , and the first end of the input section 111 is at least partially located in the port 150 . The port 150 can be used to protect the connector 110 and prevent the user from accidentally touching the input section 111 .

[0040] The present application provides a vehicle, referring to Figure 4 , Figure 4 1 is a schematic diagram of the structure of an embodiment of a vehicle provided by the present application, wherein the vehicle 20 includes a filter component 10 and an electric drive assembly, wherein the electric drive assembly includes a highly integrated three-in-one system of a controller, a motor and a reducer. The second ends of the connecting components of the filter component 10 are respectively connected to the controller, the motor and the accelerator, the controller is also electrically connected to the motor and the reducer, and the output shaft of the motor is also connected to the reducer. The filter component is any one of the filter components in the above filter component embodiments.

[0041] The vehicle 20 of this embodiment is provided with a filter component to filter the power signal of the drive assembly. Specifically, the filter component includes a connection component and a circuit board. One end of the connection component is used to access the power signal, and the other end of the connection component is used to be electrically connected to the control assembly. The circuit board is provided with a filter circuit and a discharge circuit, and the connection component is electrically connected to the filter circuit and the discharge circuit respectively. The filter circuit and the discharge circuit are respectively located on opposite sides of the circuit board, and the connection component and the circuit board are arranged in a vertical direction along the thickness direction c of the circuit board. That is, the vehicle 20 of this embodiment integrates the discharge circuit on the front of the circuit board of the filter component, and then designs the filter parameters on the back of the circuit board according to the required frequency band requirements, and sets a filter circuit composed of electronic components such as capacitors and inductors for filtering, so that the circuit board has filtering capabilities and protection capabilities, which can improve the space utilization of the circuit board, reduce the electromagnetic radiation of the control assembly, and improve the conduction test pass rate of the control assembly. In addition, the connection component and the circuit board are arranged in a vertical direction along the thickness direction c of the circuit board, which can reduce the size of the filter component in the thickness direction c of the circuit board. Therefore, the present application not only realizes the ideal conducted noise filtering effect with a discharge function, thereby enhancing product competitiveness, but also can achieve the actual required engineering mass production, thereby improving work efficiency.

[0042] Among them, the electric drive assembly can be an electric drive assembly using silicon carbide technology, and the type of the electric drive assembly is not limited here.

[0043] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A filter component, characterized in that: A control assembly for a vehicle, the filter assembly comprising: A connecting component, one end of which is used to receive a power signal, and the other end of which is used to be electrically connected to the control assembly; A circuit board is provided with a filter circuit and a discharge circuit, and the connection component is electrically connected to the filter circuit and the discharge circuit respectively; The filter circuit and the discharge circuit are respectively located on opposite sides of the circuit board, and the connection component and the circuit board are arranged in a direction perpendicular to the thickness direction of the circuit board.

2. The filter assembly according to claim 1, characterized in that: The power supply signal includes a positive signal and a negative signal, the connection component includes two connectors, one connector is used to connect the positive signal, and the other connector is used to connect the negative signal, and the filter component also includes: The two ends of the X capacitor are respectively connected to the two connecting members.

3. The filter assembly according to claim 2, characterized in that: The connector includes an input section, a first end of the input section is used to connect the positive signal or the negative signal, a gap is provided between the input sections of the two connectors, the X capacitor is located in the gap, and two ends of the X capacitor are electrically connected to the input sections of the two connectors respectively.

4. The filter assembly according to claim 3, characterized in that: A connection platform is formed on one side of the input section facing the interval, and the connection platform is provided with at least one through hole. The X capacitor comprises a plug-in X capacitor, and a plug-in pin of the plug-in X capacitor is plugged into the through hole.

5. The filter assembly according to claim 3, characterized in that: The filter assembly further includes a housing assembly, the circuit board and part of the connector are arranged in the housing assembly, the connector further includes a connecting portion extending from the end of the second end of the input section away from the first end thereof, and the filter assembly further includes: A Y capacitor, one end of the Y capacitor is connected to the connecting portion, and the other end of the Y capacitor is used to be connected to the housing of the control assembly.

6. The filter assembly according to claim 5, characterized in that: The input sections of the two connecting members are arranged along a first plane, and the connecting portions of the two connecting members extend along a direction perpendicular to the first plane and in the same direction; The vertical direction of the first plane is arranged in parallel with the thickness direction.

7. The filter assembly according to claim 5, characterized in that: The connecting member also includes an output section and an intermediate section. The intermediate section is electrically connected to the input section and the output section respectively and is vertically arranged. The input section and the output section are respectively located on opposite sides of the intermediate section. The output section is used to be electrically connected to the control assembly.

8. The filter assembly according to claim 4, characterized in that: The at least one through hole includes more than two through holes, the through holes are arranged in the same direction, and the intervals between adjacent through holes are equal.

9. The filter assembly according to claim 3, characterized in that: The filter assembly also includes: A port, the first end of the input section being at least partially located within the port.

10. A vehicle, characterized in that: include: The filter assembly and electric drive assembly according to any one of claims 1 to 9; wherein the electric drive assembly comprises: A controller connected to the filter component; A motor, electrically connected to the filter assembly and the controller respectively; The reducer is electrically connected to the filter component and the controller respectively.

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