CN220711809U - Domain controller and vehicle - Google Patents

Abstract

The application provides a domain controller and a vehicle; the domain controller comprises a circuit board, a shell and a cooling fan. The shell comprises a first shell and a second shell buckled with the first shell, and the first shell and the second shell are matched to form a containing cavity; the circuit board is arranged in the accommodating cavity; the heat radiation fan comprises a fan body and wiring, wherein the fan body is arranged outside the first shell and is electrically connected with the circuit board through the wiring; the second shell comprises a second cover body and a second peripheral wall extending towards the first shell along the edge of the second cover body, and a concave part concave towards the circuit board is arranged on the second peripheral wall; along the recess direction perpendicular to the recess, a notch is formed in the top of one of the two opposite side walls of the recess, so that the wiring enters the recess through the notch. Through the method and the device, the effective shielding of the external electromagnetic interference can be realized, and the influence of the external electromagnetic wave on electronic components in the domain controller is reduced.

Description

Domain controller and vehicle

Technical Field

The application relates to the technical field of vehicle control equipment, in particular to a domain controller and a vehicle.

Background

Compared with a traditional distributed architecture in which small electronic control units (ECUs, electronic Control Unit) are connected together through buses at all parts of an automobile body, the integrated architecture of the domain controller (Domain Controller Unit) taking the domain as a unit has better expandability, can optimize the electronic circuits of the whole automobile, reduces the number of ECUs and the communication wiring harness of the automobile, and obviously reduces the cost of parts of the whole automobile.

Electronic components such as chips, signal modules and the like are integrally mounted on a circuit board in the domain controller, and are easy to be interfered by external electromagnetic waves in the operation process. At present, electronic components of the domain controller are packaged through a metal shell so as to isolate external electromagnetic interference.

In order to realize heat dissipation of electronic components in the domain controller and ensure the working reliability of the domain controller, a heat dissipation fan is arranged in a shell of the domain controller in the related art. However, the heat dissipation fan is installed outside the metal case of the domain controller, and its wiring is required to be led from outside the domain controller to the circuit board inside the domain controller, so the case of the domain controller is required to be opened with a wire via. The wiring and the via hole of the cooling fan are difficult to be sealed, so that the metal shell cannot effectively shield the external electromagnetic interference.

Disclosure of Invention

The application provides a domain controller and a vehicle, which can effectively shield external electromagnetic interference and reduce the influence of external electromagnetic waves on electronic components in the domain controller.

In a first aspect, the present application provides a domain controller comprising:

the shell comprises a first shell and a second shell buckled with the first shell, and the first shell and the second shell are matched to form a containing cavity;

a circuit board; is arranged in the accommodating cavity; and

the heat dissipation fan comprises a fan body and wiring, wherein the fan body is arranged outside the first shell and is electrically connected with the circuit board through the wiring;

the second housing comprises a second cover body and a second peripheral wall extending towards the first housing along the edge of the second cover body, and the second peripheral wall is provided with a concave part concave towards the circuit board;

along the recess direction perpendicular to the recess, a notch is formed in the top of one of the two opposite side walls of the recess, so that the wiring enters the recess through the notch.

According to the embodiment of the application, the concave part of the circuit board is arranged on the second peripheral wall of the second shell, the notch for the wiring of the cooling fan to penetrate is arranged on the side wall of the concave part, and the wiring is led out to the outside of the shell from the inside of the shell through the matching of the concave part and the notch, so that the external electromagnetic interference is attenuated when passing through the concave part and the notch, and the effective shielding of the external electromagnetic interference is realized. Therefore, the electromagnetic interference shielding device can effectively shield external electromagnetic interference, and reduce the influence of the external electromagnetic wave on electronic components in the domain controller.

With reference to the first aspect, in order to enable the wiring to smoothly extend to the fan body, in some possible implementations, after the wiring enters the concave portion through the notch, a bending portion including a first bending section, a second bending section and a third bending section is formed in sequence, and the first bending section is bent along a direction away from the first housing; the second bending section is bent along the direction parallel to the second cover body; the third bending section is bent towards the first housing.

With reference to the first aspect and the foregoing implementation manner, in order to further improve the anti-interference capability of the domain controller, in some possible implementation manners, the first housing is provided with a first shielding plate that extends into the recess, and the first shielding plate is located between the first bending section and the third bending section.

With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, a support portion for supporting the bending portion is provided at a bottom of the recess portion in order to constrain wiring;

the first shielding plate presses against the second bending section to the supporting portion.

With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, in order to avoid water accumulation on the supporting portion, the supporting portion is provided with a plurality of water leakage holes.

And/or, in order to constrain the third bending section of the wire bending portion, the wire is more regular, in some possible implementations, the end of the supporting portion extends out of the second cover body and is provided with a flanging towards the first housing, the flanging being used for stopping the third bending section.

With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, the recess includes a top wall, a first side wall, and a second side wall; opposite side edges of the top wall are fixedly connected with the second peripheral wall through the first side wall and the second side wall; the notch is arranged on the first side wall.

With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, to further improve an anti-interference capability of the domain controller to external electromagnetic interference, the method further includes:

and the fan cover is positioned at the bending part of the concave part.

With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, in order to reduce material cost, an edge of the circuit board is provided with a plurality of connectors arranged in rows;

the upper side and the lower side of the circuit board, which are close to the connector, are respectively provided with a conductive sealing strip;

the first housing includes a first cover and a first peripheral wall extending along an edge of the first cover toward the second housing; a first cover body between the edge of the circuit board and the first peripheral wall and a second cover body between the edge of the circuit board and the second peripheral wall are respectively provided with a first supporting plate and a second supporting plate;

the first support plate is in butt joint with the second support plate, a groove is formed in the butt joint position, and the groove is used for accommodating and guiding two ends of the conductive sealing strip to extend to the first peripheral wall and the second peripheral wall.

With reference to the first aspect and the foregoing implementation manner, in order to further improve the external electromagnetic interference resistance performance of the circuit board on the side where the connector is disposed, in some possible implementation manners, the second cover is provided with a second shielding plate, where the second shielding plate is located on a side of the second support plate, which is close to the connector, and blocks the groove.

In a second aspect, the present application also provides a vehicle comprising a domain controller as described in any one of the first aspects above.

Drawings

Fig. 1 is a schematic structural diagram of a domain controller according to an embodiment of the present application;

FIG. 2 is a schematic illustration of the domain controller of FIG. 1 with the fan cover omitted;

FIG. 3 is a schematic diagram of an exploded construction of the domain controller of FIG. 1;

FIG. 4 is an enlarged schematic view of a portion I of the domain controller of FIG. 3;

FIG. 5 is a front view of the domain controller of FIG. 1;

FIG. 6 is a cross-sectional view of the domain controller of FIG. 5 taken along line A-A;

fig. 7 is an enlarged schematic view of the part ii in fig. 6.

The reference numerals in the drawings are explained as follows:

1-a circuit board; 11-a conductive sealing strip; 12-a connector;

2-a shell;

21-a first housing; 211-a first cover; 212-a first peripheral wall; 213-a first shielding plate; 214-heat dissipation ribs;

22-a second housing;

221-a second cover; 2211—a second support plate; 2212—a second shield plate;

222-a second peripheral wall;

223-a depression;

2231-a top wall;

2232—a first sidewall; 2235-gap;

2233-a second sidewall;

2234-a support; 2236-water leakage hole; 2237-flanging;

3-a heat dissipation fan;

31-a fan body;

32-wiring; 321-a bending part; 3211-a first bending section; 3212-a second bending section; 3213-a third bending section;

4-a fan cover; 41-an air outlet; 42-heat dissipation holes.

Detailed Description

The technical solutions in the present application will be clearly and thoroughly described below with reference to the accompanying drawings. Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B: the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and in addition, in the description of the embodiments of the present application, "plural" means two or more than two.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In order to realize heat dissipation of electronic components in the domain controller and ensure the working reliability of the domain controller, a heat dissipation fan is arranged in a shell of the domain controller in the related art. However, the heat dissipation fan is installed outside the metal case of the domain controller, and its wiring is required to be led from outside the domain controller to the circuit board inside the domain controller, so the case of the domain controller is required to be opened with a wire via. The wiring and the via hole of the cooling fan are difficult to be sealed, so that the metal shell cannot effectively shield the external electromagnetic interference.

In order to solve the above technical problems, embodiments of the present application provide a domain controller and a vehicle. A domain controller provided in an embodiment of the present application will be described in detail first with reference to the accompanying drawings.

First, referring to fig. 1 to 7, a domain controller according to a first aspect of the present application includes a circuit board 1, a housing 2, and a cooling fan 3. The shell 2 comprises a first shell 21 and a second shell 22 buckled with the first shell 21, and the first shell 21 and the second shell 22 are matched to form a containing cavity; the circuit board 1 is arranged in the accommodating cavity; the heat radiation fan 3 includes a fan body 31 and a wiring 32, the fan body 31 being disposed outside the first housing 21 and electrically connected to the circuit board 1 through the wiring 32; the second housing 22 includes a second cover 221 and a second peripheral wall 222 extending toward the first housing 21 along an edge of the second cover 221, and the second peripheral wall 222 is provided with a recess 223 recessed toward the circuit board 1; along a direction perpendicular to the recess direction of the recess 223, a notch 2235 is provided at the top of one of the opposite side walls of the recess 223 so that the wiring 32 enters the recess 223 through the notch 2235.

The specific structure of the domain controller will be described in conjunction with figures 1 to 7,

the circuit board 1, i.e. the printed circuit board (PCB, printed Circuit Board), is a carrier for integrated circuits in the domain controller, integrated with electronic components such as chips, signal modules, connectors, etc.

The housing 2 includes a first housing 21 and a second housing 22 which is fastened to the first housing 21; the first housing 21 and the second housing 22 cooperate to form a housing cavity; the circuit board 1 is arranged in the accommodating cavity; that is, the first housing 21 and the second housing 22 wrap the circuit board 1, forming a closed container like a "faraday cage" as much as possible, to resist external electromagnetic wave interference. The first housing 21 may be formed of a die-cast aluminum alloy, and the second housing 22 may be formed of a die-cast aluminum alloy, an aluminum alloy, or a steel sheet metal member.

The heat radiation fan 3 includes a fan body 31 and wiring 32; the fan body 31 is disposed outside the first housing 21, and when the first housing 21 has a first surface facing away from the second housing 22, the fan body 31 may be disposed on the first surface. In addition, in order to improve the heat dissipation efficiency of the domain controller, referring to fig. 1 to 3, a plurality of heat dissipation ribs 214 may be further provided at intervals on the first surface of the first housing 21. The fan body 31 is electrically connected to the circuit board 1 through a wiring 32. The ends of the wiring 32 may be provided with fan connectors so that the wiring 32 can be quickly plugged into the circuit board 1. The circuit board 1 is provided with a power module, and after the circuit board 1 is electrically connected with the wiring 32, the power module can be set to provide electric energy for the cooling fan 3 according to parameters such as temperature, time and the like so as to realize air cooling of the domain controller.

The second housing 22 includes a second cover 221 and a second peripheral wall 222 extending toward the first housing 21 along an edge of the second cover 221, the second peripheral wall 222 being provided with a recess 223 recessed toward the circuit board 1.

The recess 223 has a certain accommodation space, and can accommodate part of the wiring 32. Along a direction perpendicular to the recess direction of the recess 223, a notch 2235 is provided at the top of one of the opposite side walls of the recess 223 so that the wiring 32 enters the recess 223 through the notch 2235. The notch 2235 serves as a channel inside and outside the casing 2, so that the wiring 32 can enter the recess 223 through the notch 2235, and is led out of the domain controller from the inside of the domain controller to finally extend to the fan body 31, and the shape of the notch 2235 can be matched with the wiring 32, as shown in fig. 4, the notch 2235 is in a U shape, so that the wiring 32 can be clamped and fixed.

Since the recess 223 is provided and the gap 2235 is provided at the top of one of the opposite sidewalls of the recess 223 in the recess direction perpendicular to the recess 223, external electromagnetic interference can be attenuated when passing through the recess 223 and the gap 2235, and external electromagnetic interference signals can be prevented from directly entering the domain controller, thereby effectively shielding external electromagnetic interference.

The concave portion 223 may take various structures, and in some embodiments of the present application, the concave portion 223 may have a curved surface structure with an arc-shaped cross section; in other embodiments of the present application, as shown in fig. 3 and 4, the recess 223 may include a top wall 2231, a first side wall 2232, and a second side wall 2233; opposite sides of the top wall 2231 are secured to the second peripheral wall 222 by first and second side walls 2232, 2233. As shown in fig. 3 and 4, when the wiring 32 extends from right to left in the drawing, the notch 2235 may be provided in the first sidewall 2232; of course, if the wiring 32 extends from left to right in the drawing, the notch 2235 may be provided in the second side wall 2233. Therefore, the wiring 32 may extend out of the domain controller through the first side wall 2232 or the second side wall 2233, and the top wall 2231 may block and attenuate the external electromagnetic interference, so that the external electromagnetic interference may be circulated to the gap 2235 to be propagated, thereby effectively shielding the external electromagnetic interference.

The wiring 32 has a bent portion 321, and the bent portion 321 is provided in the recess 223 so that the extending direction of the wiring 32 can be changed. The structure of the bending portion 321 may be various, in one possible implementation, the bending portion 321 may include only two bending sections at right angles, when the wiring 32 enters the recess 223 through the notch 2235 and directly extends toward the first housing 21, and at this time, the first housing 21 may be provided with a relief portion similar to the recess 223 on the second housing 22 in structure, so that the wiring 32 passes through. In another possible implementation, referring to fig. 4, 6 and 7, the wiring 32 may sequentially form the bent portion 321 including the first bent portion 3211, the second bent portion 3212 and the third bent portion 3213 after entering the recess 223 through the gap 2235. The first bending section 3211 is bent in a direction away from the first housing 21; the second bending section 3212 is bent in parallel with the second cover 221; the third bending section 3213 is bent toward the first housing 21. It is understood that the bending portion 321 may smoothly extend the wiring 32 to the fan body 31. In addition, by providing the first shielding plate 213 extending into the recess 223 on the first housing 21, the first shielding plate 213 can be located between the first bending section 3211 and the third bending section 3213, and a shielding can be added before the top wall 2231 of the recess 223, so as to further improve the anti-interference capability of the domain controller.

Referring to fig. 4 and 7, when the bottom of the recess 223 is provided with a supporting portion 2234 for supporting the bent portion 321, the length of the first shielding plate 213 may be reasonably designed, so that the first shielding plate 213 is pressed against the second bent section 3212 to the supporting portion 2234, thereby compressing the wiring 32 and realizing the constraint on the wiring 32. In order to restrain the bent portion 321 of the wiring 32, the wiring 32 may be more regular, the end of the supporting portion 2234 may extend out of the second cover 221 and be provided with a flange 2237 facing the first housing 21, and the flange 2237 may effectively stop the third bent portion 3213. Both ends of the flange 2237 may be fixedly coupled with the second peripheral wall 222. The flange 2237 may also be integrally formed with the support 2234 and the second peripheral wall 222. In addition, in order to prevent the supporting portion 2234 from accumulating water, referring to fig. 7, a plurality of water leakage holes 2236 may be formed in the supporting portion 2234. The number, shape and size of the water leakage holes 2236 can be reasonably designed according to practical situations, for example, the shape can be round holes, bar-shaped holes and the like, and the number is 2, 3 and the like, which are not particularly limited in the application.

In this embodiment, the concave portion 223 of the concave toward the circuit board 1 is disposed on the second peripheral wall 222 of the second housing 22, and the notch 2235 through which the wiring 32 of the cooling fan 3 passes is disposed on the side wall of the concave portion 223, and by matching the concave portion 223 and the notch 2235, external electromagnetic interference can be attenuated when passing through the concave portion 223 and the notch 2235 while the wiring 32 is led out from the inside of the housing 2 to the outside of the housing 2, thereby realizing effective shielding of the external electromagnetic interference. Therefore, the electromagnetic interference shielding device can effectively shield external electromagnetic interference, and reduce the influence of the external electromagnetic wave on electronic components in the domain controller.

Referring to fig. 1 and 3, in some embodiments of the present application, the domain controller may further include a fan cover 4, the fan cover 4 covering the bent portion 321 of the recess 223. It is understood that the fan cover 4 covers the fan body 31 at the same time, the air outlet 41 is disposed at the position of the fan cover 4 corresponding to the fan body 31, and the fan cover 4 may also be provided with a plurality of heat dissipation holes 42 as shown in fig. 3. The fan cover 4 may be curved, or may be L-shaped including a cross plate and a riser as shown in fig. 3, and the transition joint of the cross plate and the riser is transited through an arc, and may be provided with a reinforcing rib.

In this embodiment, the fan cover 4 covers the bending portion 321 located at the recess 223, so that the area where the bending portion 321 of the wiring 32 is located can be further shielded, and thus the anti-interference capability of the domain controller to external electromagnetic interference can be further improved.

Referring to fig. 3, the edge of the circuit board 1 is provided with a plurality of connectors 12 arranged in rows; wherein a plurality of connectors 12 are typically aligned. Considering that the sides of the circuit board 1 of the domain controller except the side provided with the connector 12 can effectively shield external electromagnetic interference, in the embodiment of the application, the conductive sealing strip 11 is provided on the connector 12 side of the circuit board 1 to replace the conductive sealing rubber ring surrounding the circuit board 1 in the related art, so that the material cost is effectively reduced. Specifically, the upper and lower sides of the circuit board 1 are respectively provided with a conductive sealing strip 11 near the connector 12. The first housing 21 includes a first cover 211 and a first peripheral wall 212 extending along an edge of the first cover 211 toward the second housing 22. Since the widths of the first cover 211 and the second cover 221 are larger than the width of the circuit board 1, the edges of the first cover 211 and the second cover 221 have a gap with the edge of the circuit board 1, and therefore the first cover 211 between the edge of the circuit board 1 and the first peripheral wall 212 and the second cover 221 between the edge of the circuit board 1 and the second peripheral wall 222 are respectively provided with a first support plate and a second support plate 2211; the first and second support plates 2211 are butted and provided with grooves at the butt joint, which accommodate and guide the two ends of the conductive sealing strip 11 to extend to the first and second peripheral walls 212 and 222. In this way, the first support plate and the second support plate 2211 and the grooves thereon serve as bridges, so that the conductive sealing strip 11 can extend to the first peripheral wall 212 and the second peripheral wall 222, and therefore the connector 12 can be separated from the electronic device of the circuit board 1 and the side of the circuit board 1, where the connector 12 is arranged, can be effectively shielded, and the conductive sealing rubber ring surrounding the circuit board 1 in the related art can be replaced, so that the material cost can be effectively reduced.

In order to further improve the external electromagnetic interference resistance of the circuit board 1 on the side where the connector 12 is disposed, as shown in fig. 3, in some embodiments of the present application, the second cover 221 is further provided with a second shielding plate 2212, where the second shielding plate 2212 is located on the side of the second support plate 2211 near the connector 12 and blocks the recess. Referring to fig. 3, the height of the second shielding plate 2212 can be greatly higher than that of the second supporting plate 2211, so that a second shielding is added on the basis of shielding by the conductive sealing strip 11, and the performance of resisting external electromagnetic interference on the side of the circuit board 1 where the connector 12 is arranged is effectively improved.

Next, a second aspect of the present application also proposes a vehicle comprising a domain controller according to any of the first aspects above. The domain controller is arranged at any position among the lower part of the vehicle seat, the front auxiliary driving locker and the lower part of the center control.

The vehicle provided by the application has all the beneficial effects of the domain controller due to the domain controller of the embodiment. The domain controller is described in detail above and will not be described again here.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A domain controller, comprising:

the shell (2) comprises a first shell (21) and a second shell (22) buckled with the first shell (21), and the first shell (21) and the second shell (22) are matched to form a containing cavity;

the circuit board (1) is arranged in the accommodating cavity; and

a heat radiation fan (3) including a fan body (31) and wiring (32), the fan body (31) being provided outside the first housing (21) and being electrically connected to the circuit board (1) through the wiring (32);

the second housing (22) comprises a second cover body (221) and a second peripheral wall (222) extending towards the first housing (21) along the edge of the second cover body (221), and the second peripheral wall (222) is provided with a concave part (223) concave towards the circuit board (1);

a notch (2235) is provided at the top of one of the opposite side walls of the recess (223) along a recess direction perpendicular to the recess (223) so that the wiring (32) enters the recess (223) through the notch (2235).

2. The domain controller according to claim 1, wherein the wiring (32) enters the recess (223) through the gap (2235) to sequentially form a bending portion (321) including a first bending section (3211), a second bending section (3212), and a third bending section (3213); the first bending section (3211) is bent in a direction away from the first housing (21); the second bending section (3212) is bent along a direction parallel to the second cover (221); the third bending section (3213) is bent toward the first housing (21).

3. Domain controller according to claim 2, characterized in that the first housing (21) is provided with a first shielding plate (213) protruding into the recess (223), the first shielding plate (213) being located between the first bending section (3211) and the third bending section (3213).

4. A domain controller according to claim 3, characterized in that the bottom of the recess (223) is provided with a support (2234) for supporting the bent portion (321);

the first shielding plate (213) is pressed against the second bending section (3212) to the support (2234).

5. The domain controller according to claim 4, wherein the supporting portion (2234) is provided with a plurality of water leakage holes (2236);

and/or the end of the support (2234) protrudes out of the second cover (221) and is provided with a flange (2237) facing the first housing (21), said flange (2237) being used to stop the third bending section (3213).

6. The domain controller according to any of the claims 1 to 5, wherein the recess (223) comprises a top wall (2231), a first side wall (2232) and a second side wall (2233); opposite sides of the top wall (2231) are fixedly connected to the second peripheral wall (222) by the first side wall (2232) and the second side wall (2233); the gap (2235) is disposed in the first sidewall (2232).

7. The domain controller of any of claims 2 to 5, further comprising:

and a fan cover (4), wherein the fan cover (4) covers the bending part (321) of the concave part (223).

8. Domain controller according to any of claims 1 to 5, characterized in that the edge of the circuit board (1) is provided with a plurality of connectors (12) arranged in rows;

the upper side and the lower side of the circuit board (1) close to the connector (12) are respectively provided with a conductive sealing strip (11);

the first housing (21) comprises a first cover body (211) and a first peripheral wall (212) extending towards the second housing (22) along the edge of the first cover body (211); a first cover body (211) between the edge of the circuit board (1) and the first peripheral wall (212) and a second cover body (221) between the edge of the circuit board and the second peripheral wall (222) are respectively provided with a first supporting plate and a second supporting plate (2211);

the first support plate and the second support plate (2211) are in butt joint and are provided with grooves at the butt joint positions, and the grooves are used for accommodating and guiding two ends of the conductive sealing strip (11) to extend to the first peripheral wall (212) and the second peripheral wall (222).

9. The domain controller according to claim 8, wherein the second cover (221) is provided with a second shielding plate (2212), the second shielding plate (2212) being located at a side of the second support plate (2211) close to the connector (12) and shielding the recess.

10. A vehicle comprising a domain controller as claimed in any one of claims 1 to 9.