CN221962012U - Electric control device and electric automobile - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of electric automobiles, and particularly discloses an electric control device and an electric automobile. The shell is provided with a containing cavity, and a containing groove is formed in the containing cavity; the power module arranged in the accommodating cavity comprises a control circuit board, a power circuit board, a filter circuit board, a magnetic component and a connector component which are electrically connected with each other, the connector component is arranged in the shell, the filter circuit board is arranged in the accommodating groove, the control circuit board comprises an insulating plate body, a shielding component and a control circuit, the control circuit is arranged in the insulating plate body, the control circuit board covers a notch of the accommodating groove, the shielding component is embedded in the insulating plate body or is arranged on the surface of the insulating plate body, which is far away from the accommodating groove, and the shielding component is insulated from the control circuit; along the direction of the notch of the accommodating groove, which is covered by the control circuit board, the projection of the shielding component is overlapped with the notch of the accommodating groove. Insulation board body provides the insulation between shielding assembly and the filter circuit board, need not to add insulating material, has reduced manufacturing cost.

Description

Electric control device and electric automobile

Technical Field

The embodiment of the utility model relates to the technical field of electric automobiles, in particular to an electric control device and an electric automobile.

Background

The vehicle-mounted charger is a core part of the electric vehicle and is used for converting alternating current of a power grid into direct current, charging a power battery of the new energy electric vehicle, converting the direct current of the power battery into alternating current and providing electric energy for an external electric load of the vehicle. The vehicle-mounted direct current converter converts electric energy of the power battery of the new energy electric automobile into low-voltage output and charges the low-voltage storage battery of the new energy electric automobile. Along with the light weight of the whole vehicle and pursuing high efficiency, an electric vehicle usually adopts a vehicle-mounted charger and a vehicle-mounted direct current converter to form an electric control device. In order to improve the current stability of the electronic control device, an ac filter circuit is usually integrated in the vehicle-mounted electronic control device. In order to improve EMC (Electro Magnetic Compatibility ) performance of the filter circuit, the filter circuit is disposed in a relatively shielded cavity and covered with a metal plate to achieve a complete shielding effect.

In carrying out embodiments of the present utility model, the inventors found that: when the shielding cavity is covered by the single metal plate, in order to improve the insulation performance, an insulation sheet is added between the metal plate and the filter circuit, so that the cost is high.

Disclosure of utility model

In view of the above, embodiments of the present utility model provide an electric control device and an electric vehicle, which overcome or at least partially solve the above problems.

In order to solve the technical problems, the utility model adopts a technical scheme that: an electric control device is provided, which comprises a shell and a power supply module. The shell is provided with a containing cavity, and a containing groove with a notch is formed in the containing cavity; the power supply module is arranged in the accommodating cavity and comprises a control circuit board, a power circuit board, a filter circuit board, a magnetic component and a connector component which are electrically connected with each other, the connector component is arranged in the shell, the filter circuit board is arranged in the accommodating groove, the control circuit board comprises an insulating plate body, a shielding component and a control circuit, the control circuit is arranged in the insulating plate body, the control circuit board covers a notch of the accommodating groove, the shielding component is embedded in the insulating plate body or is arranged on the surface of the insulating plate body, which is away from the accommodating groove, and the shielding component is insulated from the control circuit; the projection of the shielding component is overlapped with the notch of the accommodating groove along the direction that the control circuit board is covered on the notch of the accommodating groove.

Optionally, the shielding assembly is a copper layer, the copper layer is arranged in the insulating board body or the copper layer is arranged on the surface of the insulating board body deviating from the accommodating groove, and the insulating board body is used for providing insulation between the copper layer and the filter circuit board.

Optionally, the connector assembly includes an ac input connector and a high voltage output connector, the housing slots include a first housing slot and a second housing slot, the filter circuit board includes an input filter circuit board and an output filter circuit board, and the shielding assembly includes a first shielding member and a second shielding member; the input filter circuit board is arranged in the first accommodating groove, the output filter circuit board is arranged in the second accommodating groove, the control circuit board covers the direction of the notch of the accommodating groove, the projection of the first shielding piece is overlapped with the notch of the first accommodating groove, and the second shielding piece is overlapped with the notch of the second accommodating groove.

Optionally, the shell includes inferior valve and upper cover, upper cover detachably lid is located the inferior valve, the upper cover with the inferior valve encloses jointly and closes acceping the chamber, the inferior valve in acceping the chamber and be provided with first acceping groove and second acceping groove.

Optionally, the lower shell includes a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate and a first coaming, where the first side plate, the second side plate, the third side plate and the fourth side plate are connected end to end in sequence, and the bottom plate is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate respectively; the first coaming is fixedly connected with the first side plate and the second side plate respectively, and the first side plate, the second side plate, the bottom plate and the first coaming enclose together to form the first accommodating groove.

Optionally, the lower shell further comprises a second coaming; the second coaming is fixed with the first side plate and the fourth side plate respectively, and the first side plate, the fourth side plate, the bottom plate and the second coaming jointly enclose to form the second accommodating groove.

Optionally, the power circuit board includes power plate body and power device, power device set up in the power plate body deviate from the surface of upper cover, power device butt in the bottom plate.

Optionally, the power circuit board further includes a first heat conducting member, where the first heat conducting member is disposed between the power device and the bottom plate, and the first heat conducting member is configured to conduct heat generated by the power device to the bottom plate.

Optionally, the electric control device further includes a second heat conducting member, where the second heat conducting member is disposed between the magnetic component and the bottom plate, and the second heat conducting member is configured to conduct heat generated by the magnetic component to the bottom plate.

Optionally, the bottom plate is provided with a liquid guide channel, and the liquid guide channel is used for cooling medium to flow through.

Optionally, the power circuit board is electrically connected with the control circuit board through opposite connection, specifically, the power circuit board is provided with a plug connector, the plug connector is plugged in the insulating board body, and the plug connector electrically connects the power circuit board with the control circuit.

Optionally, the power circuit board and the control circuit board are further electrically connected by welding, or screw connection, or a combination of welding and screw connection.

Optionally, the magnetic component is electrically connected with the control circuit board, the power circuit board, the filter circuit board and the connector component through welding, or opposite insertion connection, or screw connection, or any combination of the above connection modes.

In order to solve the technical problems, the utility model adopts another technical scheme that: an electric automobile is provided, which comprises the electric control device.

The embodiment of the utility model has the beneficial effects that: different from the situation of the prior art, the embodiment of the utility model provides an electric control device and an electric automobile, wherein the electric control device comprises a shell and a power supply module, the shell is provided with a containing cavity, and a containing groove with a notch is formed in the containing cavity; the power module is arranged in the accommodating cavity and comprises a control circuit board, a power circuit board, a filter circuit board, a magnetic component and a connector component, wherein the connector component is arranged in the shell, the filter circuit board is arranged in the accommodating groove, the control circuit board comprises an insulating plate body, a shielding component and a control circuit, the control circuit is arranged in the insulating plate body, the control circuit board covers a notch of the accommodating groove, the shielding component is embedded in the insulating plate body or is arranged on the surface of the insulating plate body, deviating from the accommodating groove, the shielding component is insulated from the control circuit, the filter circuit board is respectively electrically connected with the power circuit board and the connector component, and the control circuit board is respectively electrically connected with the magnetic component and the power circuit board; the projection of the shielding component is overlapped with the notch of the accommodating groove along the direction that the control circuit board is covered on the notch of the accommodating groove. Through the mode, the insulating plate body provides insulation between the shielding component and the filter circuit board, and insulating materials are not required to be additionally arranged, so that the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is an assembly schematic diagram of an electronic control device according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an electronic control device according to an embodiment of the present utility model;

FIG. 3 is a perspective view of one view of the lower shell provided by an embodiment of the present utility model;

FIG. 4 is an exploded view of another view of the lower shell provided by an embodiment of the present utility model;

FIG. 5 is an assembly schematic of a power module with a lower housing and a control circuit board removed according to an embodiment of the present utility model;

Fig. 6 is a perspective sectional view of fig. 1 taken along section line AA;

FIG. 7 is a schematic diagram illustrating an assembly of a lower housing and a power module according to an embodiment of the present utility model;

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "left," "right," "front," "rear," and the like as used in this specification are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the electric control device 1000 includes a housing 1 and a power module 2, the power module 2 is disposed in the housing 1, the housing 1 seals and protects the power module 2, and the power module 2 includes a power circuit board 21, a filter circuit board 22, a control circuit board 23, a magnetic assembly 24 and a connector assembly 25 electrically connected to each other.

For the above-mentioned housing 1, please refer to fig. 1-4, the housing 1 includes an upper cover 11 and a lower housing 12, the upper cover 11 is detachably covered on the lower housing 12, the upper cover 11 and the lower housing 12 jointly enclose a housing cavity, and the lower housing 12 is provided with a housing groove 10 in the housing cavity. The lower case 12 includes a first side plate 121, a second side plate 122, a third side plate 123, a fourth side plate 124, a bottom plate 125, a first shroud 126, and a second shroud 127. The first side plate 121, the second side plate 122, the third side plate 123 and the fourth side plate 124 are connected end to end in sequence, the bottom plate 125 is fixedly connected with the first side plate 121, the second side plate 122, the third side plate 123 and the fourth side plate 124 respectively, the first enclosing plate 126 is fixedly connected with the first side plate 121 and the second side plate 122 respectively, and the second enclosing plate 127 is fixedly connected with the first side plate 121 and the fourth side plate 124 respectively. The housing groove 10 includes a first housing groove 101 and a second housing groove 102, the first housing groove 101 is surrounded by a first enclosing plate 126, a first side plate 121, a second side plate 122 and a bottom plate 125, and the second housing groove 102 is surrounded by a second enclosing plate 127, a first side plate 121, a fourth side plate 124 and a bottom plate 125. The first side plate 121 is provided with a liquid inlet 1211 and a liquid outlet 1212, the surface of the bottom plate 125, which is away from the upper cover 11, is provided with a flow groove 1250 and a lower cover plate 1251, the flow groove 1250 and the lower cover plate 1251 are enclosed together to form a liquid guide channel for cooling medium to circulate, the cooling medium is used for taking away heat conducted to the bottom plate 125, one end of the liquid guide channel is communicated with the liquid inlet 1211, and the other end of the liquid guide channel is communicated with the liquid outlet 1212.

In some embodiments, the bottom plate 125 is not provided with the bottom plate 1251, the bottom plate 125 is an integrally formed structure, and the liquid guide channel is disposed between two side surfaces of the bottom plate 125.

The housing 1 is made of a metal material or other material having an electromagnetic signal shielding effect.

For the above-mentioned power circuit board 21, referring to fig. 2 and 5, the power circuit board 21 is disposed in the accommodating cavity, the power circuit board 21 includes a power board body 211 and a power device 212, the power board body 211 is provided with a through hole 210 through which the DCDC transformer 243 passes and a plurality of connectors 213 electrically connected with the control circuit board 23, the power board body 211 is distributed in a space except for the accommodating groove 10 in the accommodating cavity, a distance between the power board body 211 and the bottom board 125 is smaller than a distance between a notch of the accommodating groove 10 and the bottom board 125, the power device 212 is disposed on a surface of the power board body 211 facing away from the upper cover 11, the power device 212 is abutted to the bottom board 125, and heat generated by the power device 212 is transferred to the bottom board 125 and then transferred to the liquid guide channel.

In some embodiments, a first heat conducting member is filled between the power device 212 and the bottom plate 125, and the first heat conducting member is used for conducting heat generated by the power device 212 to a liquid guiding channel of the bottom plate 125 for heat dissipation.

For the above-mentioned filter circuit board 22, referring to fig. 2, 3, 5 and 6, the filter circuit board 22 is disposed in the accommodating cavity, the filter circuit board 22 includes an input filter circuit board 221 and an output filter circuit board 222, the input filter circuit board 221 includes an input filter circuit body 2211 and an input filter device 2212, the input filter circuit body 2211 is provided with an input filter circuit, the input filter device 2212 is disposed on a surface of the input filter circuit body 2211 facing away from the upper cover 11, the input filter device 2212 is electrically connected with the input filter circuit, the input filter device 2212 is disposed in the first accommodating groove 101, the input filter circuit body 2211 is disposed in a notch of the first accommodating groove 101, the output filter circuit board 222 includes an output filter circuit body 2221 and an output filter device 2222, the output filter circuit body 2221 is provided with an output filter circuit, the output filter device 2222 is disposed on a surface of the output filter circuit body 2221 facing away from the upper cover 11, the output filter device 2222 is electrically connected with the output filter circuit, the output filter device 2222 is disposed in the second accommodating groove 102, and the output filter circuit body 1 is located in a notch of the second accommodating groove 102. The first receiving groove 101 shields the left, right, front, rear, and lower sides of the input filter circuit board 221, and the second receiving groove 102 shields the left, right, front, rear, and lower sides of the output filter circuit board 222.

It will be appreciated that in some embodiments, the liquid guide completely covers the bottom plate 125, and a third heat conducting member is filled between the input filter 2212 and the output filter 2222 and the bottom plate 125, and the third heat conducting member is used for conducting heat generated by the input filter 2212 and the output filter 2222 to the liquid guide of the bottom plate 125 for heat dissipation.

For the above-mentioned control circuit board 23, please refer to fig. 2, 6 and 7, the control circuit board 23 is disposed in the accommodating cavity, the control circuit board 23 includes an insulating board body 231, a shielding component 232 and a control circuit, the control circuit is disposed in the insulating board body 231, the shielding component 232 is embedded in the insulating board body 231, and the shielding component 232 is insulated from the control circuit. The insulating plate body 231 is located between the accommodating groove 10 and the upper cover 11, the insulating plate body 231 covers the notch of the accommodating groove 10, the shielding assembly 232 comprises a first shielding member 2321 and a second shielding member 2322, along the direction that the insulating plate body 231 covers the accommodating groove 10, the projection of the first shielding member 2321 is overlapped with the notch of the first accommodating groove 101, the second shielding member 2322 is overlapped with the notch of the second accommodating groove 102, the first shielding member 2321 shields the upper side face of the input filter circuit board 221, and the second shielding member 2322 shields the upper side face of the output filter circuit board 222. The first shield 2321 and the first receiving groove 101 together completely shield the input filter circuit board 221, and the second shield 2322 and the second receiving groove 102 together completely shield the output filter circuit board 222. The control circuit is also electrically connected with the input filter circuit and the output filter circuit, specifically, the input filter board 2211 and the output filter board 2221 are both connected with the insulating board 231 by screws. The control circuit is also electrically connected with the power circuit, and the electrical connection mode is opposite-plug connection, or welding, or screw connection or any combination of the above modes, and the opposite-plug connection is specifically that the plug connector 213 on the power board body 211 is plugged into the control circuit arranged on the insulating board body 231, and the opposite-plug connection and the screw connection also provide good mechanical fixation while realizing electrical connection.

In some embodiments, shield assembly 232 is positioned on an insulator plate body 231 facing upper cover 11, insulator plate body 231 providing insulation between shield assembly 232 and filter circuit board 22.

In some embodiments, first shield 2321 and second shield 2322 are copper-plated layers disposed within insulator plate body 231 or disposed on a surface of insulator plate body 213 facing away from receiving slot 10.

For the above-mentioned magnetic assembly 24, please refer to fig. 2 and fig. 5 to fig. 7, the magnetic assembly 24 is disposed in the accommodating cavity, the magnetic assembly 24 is electrically connected with the power circuit board 21, the magnetic assembly 24 is fixedly connected with the housing 1 by a screw, the magnetic assembly 24 includes a PFC inductor 241, an OBC transformer 242, a DCDC transformer 243 and a DCDC output copper bar 244, wherein the PFC inductor 241 and the OBC transformer 242 are further electrically connected with the control circuit board 23. The DCDC output copper bar 244 is welded on the power board body 211, one end of the DCDC output copper bar 244 is connected with the DCDC transformer 243 through screws, the DCDC transformer 243 is connected with the power board body 211 through a combination of opposite insertion and screws, the PFC inductor 241 is connected with the power board body 211 and the control circuit through screws, the OBC transformer 242 is connected with the power board body 211 in opposite insertion, and the OBC transformer 242 is connected with the control circuit through screws. PFC inductance 241 locates the one end of acceping the chamber and is close to third curb plate 123, OBC transformer 242 locates the one end of acceping the chamber and is close to third curb plate 123 and fourth curb plate 124, PFC inductance 241 and OBC transformer 242 do not overlap with power plate body 211 and insulation board body 231 along the direction that upper cover 11 covered lower shell 12, and DCDC transformer 243 part passes through hole 210 of power plate body 211 and is located the side that insulation board body 231 deviates from upper cover 11.

In some embodiments, a second heat conducting member is filled between the PFC inductor 241, the OBC transformer 242, and the DCDC transformer 243 and the base plate 125, and the second heat conducting member is used for conducting heat generated by the PFC inductor 241, the OBC transformer 242, and the DCDC transformer 243 to a liquid guiding channel of the base plate 125 for heat dissipation.

In some embodiments, PFC inductor 241, OBC transformer 242, and DCDC transformer 243 are all independent modules, each of which includes a housing and a magnetic element disposed in the housing, and a fourth heat conducting member is filled between the housing and the magnetic element and is used for conducting heat generated by the magnetic element to the housing.

It will be appreciated that the constituent structure of the magnetic assembly 24 is not limited to that described above, but may be other functional magnetic elements.

With respect to the connector assembly 25 described above, with continued reference to fig. 2 and 5-7, the connector assembly 25 partially passes through the first side plate 121 and is secured to the first side plate 121 by screws, and the connector assembly 25 includes an ac input connector 251, a high voltage output connector 252, a DCDC low voltage output connector 253, and a signal connector 254. The ac input connector 251 is electrically connected to the input filter circuit board 221, the high-voltage output connector 252 is electrically connected to the output filter circuit board 222, and the DCDC low-voltage output connector 253 is connected to the other end of the DCDC output copper bar 244 by screws.

It will be appreciated that the electrical connection between all of the above components may be a screw connection, an opposite-insert connection, a weld, or any combination thereof.

In the embodiment of the application, an electric control device 1000 is provided, which comprises a housing 1 and a power module 2, wherein the housing 1 comprises an upper cover 11 and a lower cover 12 which are enclosed into a housing cavity, the upper cover 11 is detachably connected with the lower cover 12, the lower cover 12 is provided with a housing groove 10 in the housing cavity, and the housing groove 10 comprises a first housing groove 101 and a second housing groove 102. The lower shell 12 is formed by connecting a first side plate 121, a second side plate 122, a third side plate 123, a fourth side plate 124 and a bottom plate 125 which are connected end to end in sequence, the bottom plate 125 is provided with a liquid guide channel for cooling medium circulation, the lower shell 12 further comprises a first enclosing plate 126 and a second enclosing plate 127, the first enclosing plate 126, the first side plate 121, the second side plate 122 and the bottom plate 125 jointly enclose a first accommodating groove 101, and the second enclosing plate 127, the third side plate 123, the fourth side plate 124 and the bottom plate 125 jointly enclose a second accommodating groove 125. The first accommodating groove 101 and the second accommodating groove 102 are simple and portable in structure, and the liquid guide channel for heat dissipation is a plane liquid channel, so that the electronic control device 1000 is beneficial to light weight and small volume. The power module 2 includes a power circuit board 21, a filter circuit board 22, a control circuit board 23, a magnetic assembly 24 and a connector assembly 25 disposed on the first side plate 121. The control circuit board 23 includes an insulating board body 231 and a shielding component 232, the insulating board body is provided with a control circuit, the shielding component 232 is embedded in the insulating board body 231 or is arranged on the surface of the insulating board body 231 facing the upper cover, the shielding component 232 includes a first shielding member 2321 and a second shielding member 2322, and the insulating board body 231 covers the accommodating groove 10. The filter circuit board 22 includes an input filter circuit board 221 and an input filter circuit board 222, the input filter circuit board 221 is accommodated in the first accommodating groove 101, the output filter circuit board 222 is accommodated in the second accommodating groove 102, the projection of the first shielding member 2321 overlaps with the notch of the first accommodating groove 101 along the direction in which the insulating plate body 231 covers the accommodating groove 10, and the projection of the second shielding member 2322 overlaps with the notch of the second accommodating groove 101. The first shield 2321 and the first receiving groove 101 together completely shield the input filter circuit board 221, and the second shield 2322 and the second receiving groove 102 together completely shield the output filter circuit board 222. The insulating plate body 231 provides insulation between the shielding component 232 and the filter circuit board 22, and insulating materials are not needed to be additionally arranged, so that the production cost is reduced, and the electronic control device 1000 is light and small in size.

The present utility model provides an embodiment of an electric automobile, which includes an electric control device 1000, and the structure and functions of the electric control device 1000 can be referred to the above embodiment, and will not be described herein. The port of the ac input connector 251 outside the housing 1 is connected to the utility power, the port of the high voltage output connector 252 outside the housing 1 is connected to the high voltage power battery of the electric vehicle, the port of the DCDC low voltage output connector 253 outside the housing 1 is connected to the low voltage battery or the low voltage electric appliance of the electric vehicle, the port of the signal connector 254 outside the housing 1 is connected to the control system of the electric vehicle, the electric control device 1000 converts the ac power into the dc power for charging the high voltage power battery through the control system, and the DCDC transformer 243 converts the electric energy of the high voltage power battery into the low voltage power output for supplying power to the low voltage battery or the low voltage electric appliance.

It should be noted that while the present utility model has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, modifications and variations of the present utility model may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this utility model as defined in the appended claims.

Claims (14)

1. An electric control device is characterized by comprising

The shell is provided with a containing cavity, and a containing groove with a notch is formed in the containing cavity;

The power supply module is arranged in the accommodating cavity and comprises a control circuit board, a power circuit board, a filter circuit board, a magnetic component and a connector component which are electrically connected with each other, the connector component is arranged in the shell, the filter circuit board is arranged in the accommodating groove, the control circuit board comprises an insulating plate body, a shielding component and a control circuit, the control circuit is arranged in the insulating plate body, the control circuit board covers a notch of the accommodating groove, the shielding component is embedded in the insulating plate body or is arranged on the surface of the insulating plate body, which is away from the accommodating groove, and the shielding component is insulated from the control circuit;

The projection of the shielding component is overlapped with the notch of the accommodating groove along the direction that the control circuit board is covered on the notch of the accommodating groove.

2. The electronic control device of claim 1, wherein,

The shielding assembly is a copper layer, the copper layer is arranged in the insulating plate body or on the surface of the insulating plate body deviating from the accommodating groove, and the insulating plate body is used for providing insulation between the copper layer and the filter circuit board.

3. The electronic control device of claim 1, wherein,

The connector assembly comprises an alternating current input connector and a high-voltage output connector, the accommodating grooves comprise a first accommodating groove and a second accommodating groove, the filter circuit board comprises an input filter circuit board and an output filter circuit board, and the shielding assembly comprises a first shielding piece and a second shielding piece;

The input filter circuit board is arranged in the first accommodating groove, the output filter circuit board is arranged in the second accommodating groove, the control circuit board covers the direction of the notch of the accommodating groove, the projection of the first shielding piece is overlapped with the notch of the first accommodating groove, and the second shielding piece is overlapped with the notch of the second accommodating groove.

4. An electronic control device according to claim 3, wherein,

The shell comprises a lower shell and an upper cover, the upper cover is detachably arranged on the lower shell in a covering mode, the upper cover and the lower shell jointly enclose the accommodating cavity, and the lower shell is provided with a first accommodating groove and a second accommodating groove in the accommodating cavity.

5. The electronic control device of claim 4, wherein,

The lower shell comprises a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate and a first coaming, wherein the first side plate, the second side plate, the third side plate and the fourth side plate are sequentially connected end to end, and the bottom plate is respectively fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate;

The first coaming is fixedly connected with the first side plate and the second side plate respectively, and the first side plate, the second side plate, the bottom plate and the first coaming enclose together to form the first accommodating groove.

6. The electronic control device of claim 5, wherein,

The lower shell further comprises a second coaming;

The second coaming is fixed with the first side plate and the fourth side plate respectively, and the first side plate, the fourth side plate, the bottom plate and the second coaming jointly enclose to form the second accommodating groove.

7. The electronic control device of claim 5, wherein,

The power circuit board comprises a power board body and a power device, wherein the power device is arranged on the surface, deviating from the upper cover, of the power board body, and the power device is abutted to the bottom plate.

8. The electronic control device of claim 7, wherein,

The electric control device further comprises a first heat conduction piece, wherein the first heat conduction piece is arranged between the power device and the bottom plate, and the first heat conduction piece is used for conducting heat generated by the power device to the bottom plate.

9. The electronic control device of claim 5, wherein,

The electric control device further comprises a second heat conduction piece, wherein the second heat conduction piece is arranged between the magnetic component and the bottom plate, and the second heat conduction piece is used for conducting heat generated by the magnetic component to the bottom plate.

10. An electrical control device according to any one of claims 5-9, wherein,

The bottom plate is provided with a liquid guide channel for cooling medium to flow through.

11. The electronic control device of claim 1, wherein,

The power circuit board is electrically connected with the control circuit board through opposite plug connection, specifically, the power circuit board is provided with a plug connector, the plug connector is plugged in the insulating board body, and the plug connector is used for electrically connecting the power circuit board with the control circuit.

12. The electronic control device of claim 11, wherein,

The power circuit board and the control circuit board are also electrically connected through welding, screw connection or a combination of welding and screw connection.

13. The electronic control device of claim 1, wherein,

The magnetic component is electrically connected with the control circuit board, the power circuit board, the filter circuit board and the connector component through welding, or opposite insertion connection, or screw connection, or any combination of the above connection modes.

14. An electric vehicle comprising an electrical control device according to any one of claims 1 to 13.