CN216861398U - Electronic control unit - Google Patents
Electronic control unit Download PDFInfo
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- CN216861398U CN216861398U CN202121481015.6U CN202121481015U CN216861398U CN 216861398 U CN216861398 U CN 216861398U CN 202121481015 U CN202121481015 U CN 202121481015U CN 216861398 U CN216861398 U CN 216861398U
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Abstract
An electronic control unit comprising: the bottom plate comprises a rectangular bearing area and an L-shaped mounting area, the mounting area comprises a corner part and two elongated parts which are adjacent to the corner part and perpendicular to each other, the two elongated parts are respectively adjacent to two sides of the bearing area, the mounting area comprises a positioning concave part arranged in the corner part and a plurality of mounting concave parts arranged in the elongated parts, each mounting concave part in one elongated part is provided with a corresponding mounting concave part in the other elongated part, and the distance between each mounting concave part and the corresponding mounting concave part is equal.
Description
Technical Field
The utility model relates to the technical field of automobile safety, in particular to an electronic control unit for an air bag.
Background
An airbag device mounted on a vehicle senses an impact force applied to a vehicle body using an impact sensor disposed on the vehicle body and an impact sensor built in an Electronic Control Unit (ECU) for an airbag. When the impact sensor detects that the impact force is equal to or higher than a predetermined value, the airbag is deployed.
There are also electronic control units that can handle vehicle rollover. Such an electronic control unit is provided with a tilt sensor, particularly a rollover sensor, which detects the lateral tilt of the vehicle body. When the vehicle rolls over, the tilt sensor detects that the tilt angle of the vehicle body is equal to or higher than a predetermined value, and then the curtain airbag is deployed to protect the head of the occupant.
The electronic control unit for an airbag has a high requirement for shock resistance of a mounting point, and if the mounting strength or rigidity is insufficient, the electronic control unit cannot normally operate. The design of the electronic control unit therefore requires not only sufficient rigidity of the body, but also reduced resonance in the installed condition. In the prior art, the base plate of the electronic control unit is usually designed as a mounting hole suitable for a fixed arrangement (e.g. the VDA arrangement widely used in the chinese market, 70x95 mm). The mounting orientation of the electronic control unit will affect the wiring harness layout and fixation on the vehicle deck.
Due to different vehicle designs and harness securement requirements, electronic control units for airbags are required to be flexibly mounted on the chassis, supporting either front-to-back or side-to-side harness mating. However, the current electronic control unit chassis design can only meet the requirements of one installation direction.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the present application proposes an electronic control unit for an airbag, the electronic control unit including: a bottom plate having a rectangular shape; a housing mounted on the base plate; a circuit board disposed inside the housing; an interface disposed on the housing; a fastener that secures the base plate, the housing, and the circuit board together, the base plate comprising a load bearing region and a mounting region, the load bearing region being rectangular, the mounting region being L-shaped and comprising a corner portion and two elongate portions adjacent to the corner portion and perpendicular to each other, the two elongated portions respectively abut two mutually perpendicular side edges of the carrying area, the mounting area comprises a positioning recess and a plurality of mounting recesses, the positioning recess is provided in the corner portion, the plurality of mounting recesses are provided in the elongated portion, each mounting recess in one of the two elongated portions presents another mounting recess corresponding thereto in the other elongated portion, and a distance between each mounting recess and the corresponding another mounting recess and the positioning recess is equal.
According to an alternative embodiment, the carrying area comprises a water-proof ridge arranged to surround the carrying area, a plurality of mounting bosses arranged in the area surrounded by the water-proof ridge, and a plurality of mounting holes, each mounting boss being provided with one of the mounting holes at the top.
According to an alternative embodiment, the top ends of the plurality of mounting bosses are higher than the top surface of the waterproof ridge.
According to an alternative embodiment, the waterproof rib and the mounting bosses protrude in the same direction, the positioning recess and the mounting recesses are recessed in a direction opposite to the direction in which the waterproof rib protrudes, and the direction in which the waterproof rib protrudes is perpendicular to the plane in which the bearing area is located.
According to an alternative embodiment, the load-bearing area comprises four mounting bosses and four corresponding mounting holes, and the four mounting bosses and the four corresponding mounting holes are symmetrically arranged along a symmetry axis of the load-bearing area, and two mounting bosses and two mounting holes are arranged on each side of the symmetry axis.
According to an alternative embodiment, the bottom surfaces of the plurality of mounting recesses and the bottom surface of the positioning recess are in the same horizontal plane.
According to an alternative embodiment, the mounting area includes a bracket mounting hole, a first rib and a second rib, and the positioning recess and the mounting recess are respectively provided with one bracket mounting hole at the bottom.
According to an alternative embodiment, the mounting area comprises four mounting recesses, two mounting recesses being arranged on each side of an axis through the positioning recess.
According to an alternative embodiment, the first rib extends from the positioning recess to the mounting recess closest to the positioning recess and protrudes in the same direction as the direction in which the waterproof rib protrudes, and the second rib is provided between adjacent two mounting recesses passing through one side of the axis of the positioning recess and protrudes in the same direction as the direction in which the waterproof rib protrudes.
According to an alternative embodiment, the base plate comprises a sheet metal structure.
By means of the electronic control unit of the present application, different mounting directions of the electronic control unit employing the VDA arrangement can be accommodated. The electronic control unit has the advantage that the installation direction can be flexibly selected to meet different OEM installation requirements.
Drawings
The foregoing and other aspects of the present application will be more fully understood from the following detailed description, taken together with the following drawings. It is noted that the drawings may not be to scale for clarity of illustration and will not detract from the understanding of the present application.
Figure 1 shows a perspective view of an electronic control unit according to the application,
figure 2 shows an exploded perspective view of the electronic control unit of figure 1,
figure 3 shows a perspective view of the base plate of the electronic control unit of figure 1,
FIG. 4 shows a first configuration of the electronic control unit of FIG. 1 in which the mating direction of the connector harness of the electronic control unit is parallel to the direction of vehicle travel, an
Fig. 5 shows a second configuration of the electronic control unit of fig. 1, in which the mating direction of the connector harness of the electronic control unit is perpendicular to the vehicle traveling direction.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Fig. 1 shows a perspective view of an electronic control unit according to the present application. The electronic control unit 1 includes: a chassis 10 having a substantially rectangular shape, a housing 11 mounted on the chassis 10, a circuit board 13 (see fig. 2) provided inside the housing 11, and an interface 15 provided on the housing 11. The base plate 10 comprises a sheet metal structure. The interface 15 includes pins that electrically connect to the circuit board.
Fig. 2 shows an exploded perspective view of the electronic control unit of fig. 1. The electronic control unit 1 further includes a fastener 17 (e.g., a screw) for fixing the base plate 10, the housing 11, and the circuit board 13 together.
Fig. 3 shows a perspective view of the base plate of the electronic control unit of fig. 1. The base plate 10 includes a load bearing area 112 and a mounting area 114. The carrier region 112 is rectangular. The mounting region 114 is L-shaped and includes a corner portion and two elongated portions adjacent to the corner portion and perpendicular to each other. The two elongated portions respectively adjoin two mutually perpendicular side edges of the carrier region 112. The housing 11 and the wiring board 13 are disposed within the carrier region 112.
The load bearing area 112 includes a water resistant bead 113, a plurality of mounting bosses 115, and a plurality of mounting holes 116. The waterproof ribs 113 are provided to surround the bearing region 112 and protrude outward. A plurality of mounting bosses 115 are provided in the area surrounded by the waterproof rib 113 and protrude in the same direction as the direction in which the waterproof rib 113 protrudes. The direction of the protrusion of the waterproof rib 113 is perpendicular to the plane of the bearing area 112. The technical effect of providing the plurality of mounting bosses 115 is that, after the housing 11 and the circuit board 13 are mounted to the chassis base 10, the housing 11 and the circuit board 13 are uniformly stressed, preventing the housing 11 and the circuit board 13 from being damaged due to uneven stress. The top ends of the plurality of mounting bosses 115 are higher than the top surface of the waterproof rib 113, for example, by 0.5 to 1 mm. Each of the plurality of mounting bosses 115 is provided with one mounting hole 116 at the top. Fasteners 17 pass through holes provided in the housing 11 and the circuit board 13 and corresponding mounting holes 116 to secure the base plate 10, the housing 11 and the circuit board 13 together. The technical effect of providing the waterproof rib 113 and the plurality of mounting bosses 115 so as to protrude in the same direction is that the rigidity and the torsional strength of the bearing region 112 are improved, and after the housing 11 and the circuit board 13 are mounted to the chassis base 10, only the top of the waterproof rib 113 and the top of the plurality of mounting bosses 115 actually come into contact with the housing 11 and the circuit board 13. Thus, the contact area of the bottom plate 10 with the housing 11 and the circuit board 13 is small, so that the housing 11 and the circuit board 13 are less affected when the vehicle vibrates. In the embodiment of fig. 3, the load bearing area 112 includes four mounting bosses 115 and corresponding four mounting holes 116. It should be understood that the load bearing area 112 may also include other numbers of mounting holes 116.
The mounting region 114 includes a positioning recess 117, a plurality of mounting recesses 118, a plurality of bracket mounting holes 119, a first rib 120, and a second rib 121. The positioning recess 117 is provided in the corner portion and is recessed in a direction opposite to the direction in which the waterproof ridge 113 protrudes. A plurality of mounting recesses 118 are provided in the elongated portion. Each mounting recess 118 in one of the two elongate portions presents another mounting recess 118 in the other elongate portion corresponding thereto. Each mounting recess 118 and the corresponding other mounting recess 118 are equidistant from the positioning recess 117. The mounting recess 118 is recessed in a direction opposite to the direction in which the waterproof projected bead 113 is projected. At least two mounting recesses 118 are provided in each elongate portion. The bottom surfaces of the plurality of mounting recesses 118 are in the same horizontal plane as the bottom surface of the positioning recess 117. The positioning recess 117 and each of the mounting recesses 118 are provided at the bottom with a bracket mounting hole 119, respectively. The floor 10 is secured to the vehicle via fasteners (not shown) passing through a plurality of bracket mounting holes 119. The technical effect of providing the positioning recess 117 and the plurality of mounting recesses 118 and recessing them in the direction opposite to the direction in which the waterproof ridge 113 protrudes is that, after the floor panel 10 is mounted to the vehicle, the portions that actually contact the floor panel 10 are only the bottom of the positioning recess 117 and the bottom of the plurality of mounting recesses 118. Thus, the contact area of the vehicle with the floor panel 10 is small, so that the floor panel 10 is less affected when the vehicle vibrates. The first rib 120 extends from the positioning recess 117 to the mounting recess 118 nearest to the positioning recess 117, and protrudes in the same direction as the waterproof rib 113 protrudes. The second rib 121 is provided between adjacent two of the mounting recesses 118 passing through one side of the axis of the positioning recess 117, and protrudes in the same direction as the direction in which the waterproof rib 113 protrudes. The technical effect of providing the first and second ribs 120 and 121 is that the rigidity and the torsional strength of the mounting region 114 are improved.
In the present embodiment, the mounting region 114 includes four mounting recesses 118, with two mounting recesses 118 disposed in each elongated portion. It should be understood that other numbers of mounting recesses 118 are also within the scope of the present application.
Fig. 4 shows a first configuration of the electronic control unit of fig. 1 in which the mating direction of the connector harness of the electronic control unit (as indicated by the broken-line arrow in fig. 4) is parallel to the vehicle traveling direction (as indicated by the solid-line arrow in fig. 4). In the first configuration, the housing 11 and the circuit board 13 are mounted on the base plate 10 by means of fasteners passing through the mounting holes 116. The floor 10 is secured to the vehicle by means of fasteners which pass through locating holes on the vehicle and through bracket mounting holes 119 in the locating recess 117, bracket mounting holes 119 in one mounting recess 118 in one elongate portion and closer to the locating recess 117 and bracket mounting holes 119 in one mounting recess 118 in the other elongate portion and further from the locating recess.
Fig. 5 shows a second configuration of the electronic control unit of fig. 1, in which the mating direction of the connector harness of the electronic control unit (as indicated by the broken-line arrow in fig. 5) is perpendicular to the vehicle traveling direction (as indicated by the solid-line arrow in fig. 5). In the second configuration in fig. 5, the base plate 10 is rotated by 90 ° in the counter-clockwise direction compared to the first configuration in fig. 4. Since the distance between each mounting recess 118 and the corresponding other mounting recess 118 and the positioning recess 117 is equal. The floor 10 may therefore still be along a portion of the locating holes on the vehicle used to mount the floor 10 in the first configuration. Thus, fewer positioning holes (four in the present embodiment) are provided in the vehicle to accommodate two mounting directions of the floor panel 10 that are perpendicular to each other. Therefore, the electronic control unit can be installed along different directions according to the actual reserved space condition of the vehicle, so as to adapt to the installation requirements of different OEM manufacturers.
The base plate 10 of the present application may be made of cold rolled carbon structural steel (e.g., B280VK) or cold rolled low carbon steel (e.g., DC 01). The base plate 10 of the present application may also be made of other metallic materials including alloy steels.
The foregoing description of the embodiments has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to understand the embodiments for various embodiments and with various modifications as are suited to the particular use contemplated. Within the framework of embodiments, the components and features described above can be combined between the different embodiments described.
Claims (10)
1. An electronic control unit (1), the electronic control unit (1) comprising:
a base plate (10) having a rectangular shape,
a housing (11) mounted on the base plate (10),
a circuit board (13) disposed inside the housing (11),
an interface (15) provided on the housing (11),
a fastener (17) that fixes the base plate (10), the housing (11), and the circuit board (13) together,
it is characterized in that the preparation method is characterized in that,
the base plate (10) comprising a load-bearing area (112) and a mounting area (114), the load-bearing area (112) being rectangular, the mounting area (114) being L-shaped and comprising a corner portion and two elongated portions adjacent to the corner portion and perpendicular to each other, the two elongated portions abutting respectively two perpendicular side edges of the load-bearing area (112),
the mounting region (114) comprises a positioning recess (117) and a plurality of mounting recesses (118), the positioning recess (117) being provided in the corner portion, the plurality of mounting recesses (118) being provided in the elongated portion, each mounting recess (118) in one of the two elongated portions having a further mounting recess (118) in the other elongated portion corresponding thereto, the distance between each mounting recess (118) and the corresponding further mounting recess (118) and the positioning recess (117) being equal.
2. Electronic control unit (1) according to claim 1,
the bearing area (112) comprises a waterproof rib (113), a plurality of mounting bosses (115) and a plurality of mounting holes (116),
the water bead (113) is arranged to surround the bearing area (112),
the plurality of mounting bosses (115) are provided in the area surrounded by the waterproof ridge (113), and
each mounting boss (115) is provided with one mounting hole (116) at the top.
3. Electronic control unit (1) according to claim 2,
the top ends of the mounting bosses (115) are higher than the top surface of the waterproof rib (113).
4. Electronic control unit (1) according to claim 2 or 3,
the waterproof rib (113) and the plurality of mounting bosses (115) protrude in the same direction,
the positioning recess (117) and the plurality of mounting recesses (118) are recessed in a direction opposite to a direction in which the waterproof rib (113) protrudes, and
the protruding direction of the waterproof convex rib (113) is vertical to the plane of the bearing area (112).
5. Electronic control unit (1) according to claim 2 or 3,
the bearing area (112) comprises four mounting bosses (115) and corresponding four mounting holes (116), an
The four mounting bosses (115) and the corresponding four mounting holes (116) are symmetrically arranged along an axis of symmetry of the load-bearing region (112), with two mounting bosses (115) and two mounting holes (116) arranged on each side of the axis of symmetry.
6. Electronic control unit (1) according to any one of claims 1-3,
the bottom surfaces of the plurality of mounting recesses (118) and the bottom surface of the positioning recess (117) are in the same horizontal plane.
7. Electronic control unit (1) according to claim 4,
the mounting region (114) includes a stent mounting hole (119), a first rib (120) and a second rib (121), and
the positioning concave part (117) and the mounting concave part (118) are respectively provided with a bracket mounting hole (119) at the bottom.
8. Electronic control unit (1) according to claim 7,
the mounting region (114) comprises four mounting recesses (118),
two mounting recesses (118) are arranged on each side of an axis passing through the positioning recess (117).
9. Electronic control unit (1) according to claim 7,
the first rib (120) extends from the positioning recess (117) to the mounting recess (118) nearest to the positioning recess (117) and protrudes in the same direction as the waterproof rib (113) protrudes, and
the second rib (121) is provided between two adjacent mounting recesses (118) passing through one side of the axis of the positioning recess (117), and protrudes in the same direction as the waterproof rib (113) protrudes.
10. Electronic control unit (1) according to claim 1,
the base plate (10) comprises a sheet metal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121481015.6U CN216861398U (en) | 2021-07-01 | 2021-07-01 | Electronic control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121481015.6U CN216861398U (en) | 2021-07-01 | 2021-07-01 | Electronic control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216861398U true CN216861398U (en) | 2022-07-01 |
Family
ID=82121448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121481015.6U Active CN216861398U (en) | 2021-07-01 | 2021-07-01 | Electronic control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216861398U (en) |
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2021
- 2021-07-01 CN CN202121481015.6U patent/CN216861398U/en active Active
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