AB ECU unit and vehicle safety assembly for vehicle

Abstract

The invention relates to an AB ECU unit for a vehicle, and the AB ECU unit comprises a housing which is provided with a top wall and a side wall which extends downwards from the periphery of the top wall and forms a downward opening in a surrounding manner; the base plate is installed at the opening so as to form a containing space between the shell and the base plate, the base plate is provided with a base plate main body detachably connected with the shell and at least three installation parts which extend towards the outer circumference from the base plate main body and are used for installing AB ECU units, and each installation part is installed at one installation point; the printed circuit board is arranged in the accommodating space; the AB ECU unit is configured in the mode that a first direction is defined by a connecting line between the two installation points, and a second direction orthogonal to the first direction is defined by connecting lines between any one of the two installation points and the other installation points. The AB ECU unit is mountable in a state in which the connector is selectively oriented toward one of the first direction and the second direction. By the adoption of the structure of the ABECU unit, the installation flexibility of the ABECU unit can be improved.

Description

Technical Field

[0001] The present invention relates to an ECU device of a vehicle, and in particular to an AB ECU unit. Background Art

[0002] The AB (airbag) ECU unit is formed by a plastic housing, a printed circuit board / connector assembly, a stamped and forged base plate, and screws. The housing, printed circuit board / connector assembly, and base plate are fixed by screws. By fixing the base plate to the vehicle body with screws, the entire AB ECU unit is fixed to the vehicle body.

[0003] AB ECU units contain various direction- and position-sensitive sensors, such as accelerometers and position sensors. This imposes restrictions on the mounting orientation of the AB ECU unit. Two mounting orientations are generally available: the AB ECU unit's connector faces either the X or Y direction of the vehicle's coordinate system, meeting different vehicle installation requirements. However, the mounting position of existing AB ECU units (i.e., the point at which the AB ECU unit's baseplate is fixed relative to the vehicle body) is typically fixed to meet vehicle requirements and cannot be changed. Therefore, existing designs do not accommodate both mounting orientations.

[0004] In other words, if an AB ECU unit is designed for installation in one orientation, it cannot be modified to be installed in the other. This necessitates designing and manufacturing different AB ECU units for different vehicle installation requirements. This significantly increases design and manufacturing costs and increases the complexity of the platform product.

[0005] Therefore, there is a need for an improved AB ECU unit that can be simply and selectively installed in two different directions as needed, without the need to design complex and different AB ECU units according to vehicle installation requirements. Summary of the Invention

[0006] The purpose of the present application is to overcome the technical defect of the prior art that the AB ECU unit is limited in installation direction and to provide an AB ECU unit that can be installed relative to the vehicle body in multiple directions.

[0007] To achieve the above-mentioned objectives, the present application provides an AB ECU unit for a vehicle, comprising: a housing having a top wall and side walls extending downward from a periphery of the top wall and surrounding a downward opening; a substrate mounted in the opening to form a receiving space between the housing and the substrate, the substrate having a substrate main body detachably connected to the housing and at least three mounting portions extending from the substrate main body toward the outer periphery for mounting the AB ECU unit, each mounting portion being mounted at one mounting point; a printed circuit board mounted in the receiving space; and a connector electrically connected to the printed circuit board, the connector having an interface capable of electrical connection from outside the housing, wherein the AB ECU unit is configured such that, among three mounting points of the at least three mounting points, a line connecting two mounting points defines a first direction, a line connecting any one of the two mounting points with the remaining mounting points defines a second direction orthogonal to the first direction, and the AB ECU unit can be mounted in a state in which the interface of the connector is selectively oriented toward one of the first and second directions.

[0008] Among them, the substrate body is provided with four fixing holes for connecting the printed circuit board, the centers of the four fixing holes are arranged in a square relationship, the printed circuit board is designed to have a square shape, and has four through holes located at the four corners of the square, the positions of the four through holes correspond to the positions of the four fixing holes, and the printed circuit board is connected to the substrate by passing screws through the four through holes and the four fixing holes.

[0009] In which, an interference portion is provided on the substrate body, and the interference portion interferes with the printed circuit board when the printed circuit board and the connector are installed on the substrate in directions other than the first direction and the second direction, thereby preventing the printed circuit board and the connector from being installed on the substrate in the other directions.

[0010] The housing has holes corresponding to the fixing holes of the substrate and the through holes of the printed circuit board, thereby connecting the housing to the printed circuit board and the substrate at the same time.

[0011] The plane size of the printed circuit board can be set to 43 mm×43 mm or 57.4 mm×57.4 mm, so that the maximum number of printed circuit boards can be cut out from a 190 mm×390 mm panel.

[0012] In an optional embodiment, five mounting portions are provided on the substrate, namely, a first mounting portion having a first mounting hole, a second mounting portion having a second mounting hole, a third mounting portion having a third mounting hole, a fourth mounting portion having a fourth mounting hole, and a fifth mounting portion having a fifth mounting hole, the mounting holes are divided into two groups, namely, a first group of mounting holes consisting of the first, second, and third mounting holes and a second group of mounting holes consisting of the third, fourth, and fifth mounting holes, a first triangle formed by the centers of the first group of mounting holes is congruent to a second triangle formed by the centers of the second group of mounting holes, and the second triangle is rotated 90 degrees clockwise relative to the first triangle, wherein the positions of the first, second, and third mounting holes are determined by vehicle requirements, and when the first group of mounting holes is selected to install the AB ECU unit, the connector is in the first direction, and when the second group of mounting holes is selected to install the AB ECU unit, the connector is in the second direction, and the mounting holes constitute the mounting points.

[0013] A weakened portion defined by a preselected hole is provided at a portion of each mounting portion connected to the substrate body, so as to weaken the connection between each mounting portion and the substrate body, thereby facilitating removal of each mounting portion from the substrate body.

[0014] When the first group of mounting holes is selected for installation, the fourth and fifth mounting portions are removed from the substrate body by disconnecting the weakened portion, or when the second group of mounting holes is selected for installation, the first and second mounting portions are removed from the substrate body by disconnecting the weakened portion.

[0015] In another optional embodiment, on each mounting portion, a plurality of protrusions are respectively provided on the periphery of the mounting hole, protruding from the bottom surface of the mounting portion toward the surface to be mounted.

[0016] The plurality of protrusions are evenly distributed on a circumference around the center of the corresponding mounting hole.

[0017] The protrusion is made by punching or forging the mounting portion.

[0018] The number of the bumps on each mounting portion is 2-6, the height of the bumps protruding from the bottom surface of the mounting portion is 0.08-0.2 mm, and the diameter of the bumps is 0.6 mm-1.5 mm.

[0019] In another optional embodiment, the substrate further includes an elastic support member, and when the first group of mounting holes is selected for installation, the elastic support member is respectively inserted into the fourth and fifth mounting holes, and correspondingly, when the second group of mounting holes is selected for installation, the elastic support member is respectively inserted into the first and second mounting holes.

[0020] The elastic support member is made of HDPE, EPDM, or NBR material.

[0021] The elastic support member includes a dome-shaped top, a dome-shaped bottom and a column connecting the top and the bottom, the height of the column corresponds to the thickness of the mounting portion, the total height of the elastic support member is approximately 2.4mm-3.6mm, and the outer diameter of the elastic support member is smaller than the extended dimension of the mounting portion.

[0022] According to another optional embodiment, the substrate includes a group of substrates consisting of a first substrate and a second substrate, the first substrate and the second substrate have the same outer dimensions, the first substrate includes a first mounting hole and a first mounting portion, a second mounting portion with a second mounting hole, and a third mounting portion with a third mounting hole, the second substrate includes a third mounting portion with the third mounting hole, a fourth mounting portion with the fourth mounting hole, and a fifth mounting portion with a fifth mounting hole, the triangle formed by the centers of the mounting holes on the first substrate is congruent with the triangle formed by the centers of the mounting holes on the second substrate and are rotated 90 degrees with respect to each other, and the mounting holes constitute the mounting points.

[0023] The first substrate and the second substrate can be made by a same mold, wherein the mold includes a shared mold part and inserts for forming respective mounting portions.

[0024] The present application also relates to a vehicle safety component, which includes the AB ECU unit described above.

[0025] The AB ECU unit of this application allows it to be installed relative to the vehicle body in multiple orientations, regardless of the specific installation requirements of different vehicles. This improves the AB ECU unit's installation versatility. Specifically, it can be installed in both the X and Y directions without changing any components. This new AB ECU unit significantly reduces development costs and, due to the reduced number of product variations required to design and manufacture to meet different installation requirements, reduces platform product complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The embodiments of the present application will be described in more detail with reference to the accompanying drawings, in which:

[0027] Figure 1 is an exploded perspective view of an AB ECU unit according to a first embodiment of the present application;

[0028] Figure 2 A top view of the substrate in the AB ECU unit of the present application;

[0029] Figure 3A top view of a printed circuit board and connector assembly in the AB ECU unit of the present application;

[0030] Figures 4a-4c are diagrams showing the installation of a printed circuit board with the connector facing the Y direction;

[0031] Figures 5a-5c are diagrams showing a printed circuit board being mounted with the connector facing the X direction;

[0032] Figure 6a and 6b Figures 1 and 2 respectively show the interference that occurs when the connector is installed facing the wrong direction;

[0033] Figure 7a and 7b Schematic diagrams showing the layout of the printed circuit board of the present application on the panel;

[0034] Figure 8a and 8b A reference view of the substrate and a top view of the improved substrate;

[0035] Figure 9 1 is a top view of a substrate of an AB ECU unit according to a second embodiment of the present application;

[0036] Figure 10 and 11 They are Figure 9 Views of two mounted states of the base plate are shown;

[0037] Figure 12 1 is a top view of a substrate of an AB ECU unit according to a third embodiment of the present application;

[0038] Figure 13 for Figure 12 a side view of the illustrated substrate;

[0039] Figure 14 and 15 are views showing two installation states of a substrate of an AB ECU unit according to a fourth embodiment of the present application;

[0040] Figure 16a and 16b Shown respectively Figure 14 and 15 A side view and a top view of the elastic support member used in;

[0041] Figure 17 and 18 1 and 2 show top views of two substrates in a substrate kit of an AB ECU unit according to a fifth embodiment of the present application. DETAILED DESCRIPTION

[0042] Hereinafter, embodiments of the AB ECU unit according to the present application will be described with reference to the accompanying drawings. The drawings are not drawn to scale, but rather some components are enlarged for clarity. Identical or similar features in the drawings will be denoted by the same reference numerals, and their repeated description will be omitted.

[0043] Figure 1 It is an exploded perspective view of the AB ECU unit according to the first embodiment of the present application.

[0044] The AB (airbag) ECU unit of the present application includes a shell 1, a substrate 3 that is detachably connected to the shell 1 to accommodate a printed circuit board 2 and a connector 4 that is physically and electrically connected to the printed circuit board 2. The connector 4 has an interface 5 that is electrically connected to the printed circuit board 2. When the shell 1, printed circuit board 2 and substrate 3 are assembled together, the interface 5 of the connector 4 will be exposed from the shell 1 for the user to perform connection operations on the interface 5.

[0045] Figure 2 A plan view of the substrate 3 in the AB ECU unit is shown in detail. The substrate 3 has a substrate body 30 and three mounting portions extending outward from the substrate body 30, namely a first mounting portion 31, a second mounting portion 32, and a third mounting portion 33. Figure 2 Each mounting portion is shown as a generally circular recessed platform that extends from the bottom surface of the base body 30 toward the vehicle body. However, the present application is not limited to circular recessed platforms and can be any shape as long as the screw head can be supported. Each mounting portion is provided with a through hole for the screw to pass through. For example, the figure shows a first mounting hole 310 in the first mounting portion 31, a second mounting hole 320 in the second mounting portion 32, and a third mounting hole 330 in the third mounting portion 33. The positional relationship between the first to third mounting holes 310, 320, and 330 is determined by vehicle requirements. They correspond to corresponding mating holes already provided on the vehicle body. By inserting screws through the first to third mounting holes 310, 320, and 330, the base body 3 is mounted to the vehicle body, thereby securing the entire assembled AB ECU unit to the vehicle body.

[0046] The substrate body 30 is further provided with four fixing holes for fixing the printed circuit board 2. Figure 2As shown in FIG, there is a first fixing hole 301 near the first mounting hole 310, a second fixing hole 302 near the second mounting hole 320, a third fixing hole 303 near the third mounting hole 330, and another fourth fixing hole 304 away from the three mounting holes. Correspondingly, the four corners of the printed circuit board 2 also have a first through hole 201, a second through hole 202, a third through hole 203, and a fourth through hole 204 corresponding to the first to fourth fixing holes, respectively, so that the printed circuit board 2 can be fixed to the substrate 3 by inserting screws into the first to fourth through holes and the first to fourth fixing holes, respectively.

[0047] In the actual installation process of the existing AB ECU unit, due to the functional settings and size restrictions of various components on the printed circuit board 2, the assembly of the printed circuit board 2 and the connector 4 can generally be installed in two directions, that is, the connector 4 faces the X or Y direction of the vehicle coordinate system (such as Figure 1 and 2 ) to meet the installation requirements of different vehicles. However, as previously mentioned, the positions of the first to third mounting holes of the base plate 3 (i.e., their fixed positions relative to the vehicle body) are generally fixed according to vehicle requirements and cannot be changed. Therefore, based on existing designs, there is no ABECU unit that can accommodate both installation orientations.

[0048] In other words, if an AB ECU unit is designed to be installed in a certain orientation, such as the Y direction, it cannot be changed to be installed in another orientation, such as the X direction. Therefore, different AB ECU units need to be designed and manufactured to meet the installation requirements of different vehicles. This significantly increases manufacturing costs and also increases the complexity of the platform product.

[0049] To this end, in this application, the first to fourth fixing holes 301, 302, 303, 304 of the substrate 3 are arranged so that they are arranged in a square shape, such as Figure 2 As shown in . Accordingly, Figure 3 As shown, the printed circuit board 2 is designed in a square shape, and the first to fourth through holes 201 , 202 , 203 , 204 on the printed circuit board 2 are also arranged in a square shape.

[0050] By such an arrangement, the components of the printed circuit board 2 and the connector 4 can be fixed to the substrate 3 with the connector 4 located in the X direction or the Y direction, respectively. Specifically, Figures 4a-4cAs shown in , with the first through hole 201 aligned with the first fixing hole 301, the second through hole 202 aligned with the second fixing hole 302, the third through hole 203 aligned with the third fixing hole 303, and the fourth through hole 204 aligned with the fourth fixing hole 304, the printed circuit board 2 is fixed to the substrate 3 with the connector 4 facing the Y direction, so that the AB ECU unit is mounted on the vehicle body with the connector 4 facing the Y direction.

[0051] like Figures 5a-5c As shown, when the printed circuit board 2 and the connector 4 are rotated 90 degrees counterclockwise, that is, when the connector 4 is oriented toward the X direction, by aligning the first through hole 201 with the second fixing hole 302, the second through hole 202 with the fourth fixing hole 304, the third through hole 203 with the first fixing hole 301, and the fourth through hole 204 with the third fixing hole 303, the AB ECU unit can be installed on the vehicle body so that the connector 4 faces the X direction.

[0052] In other words, as shown in FIG. 4 and FIG. 5 , the connector 4 can be positioned in two different installation directions without changing the position of the substrate 3 , that is, the installer can select the connector installation direction as needed.

[0053] Furthermore, due to the size limitations of the first to third mounting portions and the connector 4, the printed circuit board 2 and the connector 4 can generally only be oriented in the X or Y direction. The square shape of the printed circuit board 2 may cause the installer to place it in the wrong direction. Therefore, an interference portion 6 is provided on the substrate body 30 near the first mounting portion 31. The interference portion 6 protrudes from the surface of the substrate body 30 toward the side to which the printed circuit board 2 is to be fixed. Figure 6a and 6b As shown, when the connector 4 is fixed to the substrate 3 in the opposite direction of the Y direction and in the opposite direction of the X direction, the assembly of the printed circuit board 2 and the connector will collide with the interference portion 6, preventing the operator from fixing the printed circuit board 2 to the substrate 3 in these two directions.

[0054] The interference portion 6 may be an embossing produced by stamping or die forging on the substrate body 30. Alternatively, a separate interference portion 6 may be provided and connected to the substrate 3, for example, by welding.

[0055] By designing the printed circuit board 2 as a square, the connector 4 of the AB ECU unit of this application can be installed in both the X and Y directions without changing any components. This significantly reduces development costs and, because fewer product variations must be designed and manufactured to meet different installation requirements, reduces platform product complexity. Furthermore, the square printed circuit board 2 allows for more efficient layout during production. Figure 7a and Figure 7b The following examples illustrate the arrangement of two types of square printed circuit boards 2 on a conventional 190 mm × 390 mm panel. Figure 7a The illustrated arrangement of 24 printed circuit boards results in a maximum printed circuit board size of 57.4 mm in length and width, with a through-hole spacing of 49.4 mm. Alternatively, 18 printed circuit boards can be arranged on the panel, resulting in a maximum printed circuit board size of 43 mm in length and width, with a through-hole spacing of 35 mm. This allows for a compact and rational arrangement of the printed circuit boards 2 throughout the panel, reducing material waste.

[0056] This means that, depending on the size of the square PCB, a single PCB panel can accommodate 18 to 24 square PCBs. Therefore, the square design can be applied to a variety of platform products. Even after rotating the PCB and connector 90 degrees counterclockwise, screws can still be used to assemble the PCB to the baseboard as required.

[0057] Figure 8a The substrate structure of the prior art is Figure 8b According to the second embodiment of the present application Figure 8a The substrate structure after the structure shown is improved. In the present application, two mounting parts extending outward from the substrate body 30 are added, namely the fourth mounting part 34 and the fifth mounting part 35. The fourth mounting part 34 and the fifth mounting part 35 are similar in structure to the first to third mounting parts, and also have a fourth mounting hole 340 and a fifth mounting hole 350 respectively. The fourth mounting part 34 and the fifth mounting part 35 are arranged so that the triangle formed by the first, second and third mounting holes 310, 320, 330 is congruent with the triangle formed by the third, fourth and fifth mounting holes 330, 340, 350, except that the triangle formed by the third, fourth and fifth mounting holes 330, 340, 350 is rotated 90 degrees clockwise and translated relative to the triangle formed by the first, second and third mounting holes 310, 320, 330, as shown in FIG. Figure 8b shown.

[0058] Especially when the printed circuit board 2 is not square, that is, when the mounting direction of the printed circuit board 2 relative to the substrate 3 is fixed, for example, Figure 8b On the substrate shown, the printed circuit board 2 can only be attached to the substrate 3 in the Y direction with the connector 4 facing downward. By selecting the mounting holes in two groups of mounting parts from the five mounting parts, different mounting directions of the substrate 3 on the vehicle body can be achieved, thereby achieving two orientations of the connector 4.

[0059] Specifically, if Figure 8bAs shown, when the operator chooses to use the first, second, and third mounting holes 310, 320, and 330 to mount on the vehicle body, the substrate 3 and thus the entire AB ECU unit can be mounted so that the connector 4 faces the downward direction in the figure, that is, the Y direction. On the other hand, when the operator chooses to use the third, fourth, and fifth mounting holes 330, 340, and 350 to mount on the vehicle body, the substrate 3 can be mounted from Figure 8b As shown, the connector 4 is rotated 90 degrees counterclockwise and then installed on the vehicle body. After installation, the connector 4 faces the X direction, achieving the same function as in the first embodiment, that is, the connector 4 can be selectively installed in two directions.

[0060] Figure 9-11 This is a substrate structure of an AB ECU unit according to a third embodiment of the present application. The same parts as those in the second embodiment will not be described in detail, and only the differences will be described.

[0061] like Figure 9-11 As shown, weakened portions, namely, first, second, third, fourth and fifth weakened portions 61, 62, 63, 64, 65, are respectively provided at positions connected to the substrate body 30 on the recessed planes of the first to fifth mounting portions 31, 32, 33, 34, 35. These weakened portions are all achieved by pre-milling each mounting portion, that is, a series of long holes are pre-milled along the connecting portion between the mounting portion and the substrate body, so that the connection between each mounting portion and the substrate body 30 becomes weaker, so that each mounting portion can be easily removed when needed.

[0062] Figure 9 It shows the situation where all five mounting parts exist. Figure 10 The figure shows a situation where the first, second, and third mounting holes need to be selected to mount the base plate 3. At this time, the operator can remove the two mounting portions that are no longer needed, namely the fourth and fifth mounting portions 34 and 35, by manually or using a tool to apply force along the fourth and fifth weakened portions 64 and 65 to remove the fourth and fifth mounting portions 34 and 35. Figure 10 1 and 2 show a view in which the fourth and fifth mounting portions have been removed. At this point, the connector 4 can be mounted to face the Y direction.

[0063] Likewise, when the third, fourth and fifth mounting holes need to be selected to mount the base plate 3, the operator can remove the first and second mounting portions 31 and 32. Figure 11 The figure shows the first and second mounting parts 31 and 32 removed. Figure 11 The base plate 3 shown is rotated 90 degrees counterclockwise so that the positions of the third, fourth and fifth mounting holes are the same as those of the Figure 9 As shown, in this case the connector 4 can be mounted facing in the X direction.

[0064] By removing unnecessary mounting parts, the rattling sound caused by the redundant mounting parts contacting the vehicle body after the substrate 3 and thus the entire ABECU unit are installed on the vehicle body is avoided. In addition, it also avoids the operator from incorrectly selecting a combination of mounting holes due to the presence of multiple mounting holes. Incorrect assembly will cause the components of the printed circuit board 2 to fail to transmit signals normally.

[0065] Figure 12 and 13 3 is a schematic diagram of the substrate structure of the AB ECU unit according to the third embodiment of the present application. It is similar to the second embodiment, except that different improvements have been made to various mounting parts. Here, only the differences are described.

[0066] In this embodiment, the base plate 3 also includes first to fifth mounting portions 31, 32, 33, 34, 35, and first to fifth mounting holes 310, 320, 330, 340, 350 are provided on the first to fifth mounting portions 31, 32, 33, 34, 35. On each mounting portion, there are a plurality of protrusions protruding from the bottom surface of the mounting portion toward the side to be connected to the vehicle body, and on the periphery of the mounting hole. Figure 12 The figure shows that each mounting portion has three protrusions, namely, three first protrusions 71 on the first mounting portion 31, three second protrusions 72 on the second mounting portion 32, three third protrusions 73 on the third mounting portion 33, three fourth protrusions 74 on the fourth mounting portion 34, and three fifth protrusions 75 on the fifth mounting portion 35. However, the number of protrusions on each mounting portion is not limited to three, but can be, for example, 2-6, and the protrusions on each mounting portion are evenly distributed around the circumference of a circle with the center of the mounting hole as the center.

[0067] Each projection can be formed by punching, for example, from the surface of the mounting portion toward Figure 13 The bump is formed by stamping from the left side, or by die forging. The height t of the bump, i.e., the distance from the top of the bump to the bottom surface of the substrate 3, can be set to, for example, 0.08-0.2 mm, and the diameter of the bump can be, for example, 0.6 mm-1.5 mm. The diameter of the circle containing the center of the bump is, for example, less than 13.6 mm.

[0068] Although the first to fifth bumps are shown to have the same shape, size, and distribution, the shapes and sizes of the first to fifth bumps may be the same or different. The number and distribution of the first to fifth bumps may also be different, and may not be limited to uniform distribution around the circumference.

[0069] By providing the protrusions 71, 72, 73, 74, and 75, when selecting the first, second, and third mounting holes 310, 320, and 330, the other two fourth and fifth mounting portions 34 and 35 do not need to be removed as in the second embodiment. Similarly, when selecting the third, fourth, and fifth mounting holes 330, 340, and 350, the other two mounting portions 31 and 32 do not need to be removed.

[0070] Specifically, when the screws are tightened to the first, second and third mounting holes 310, 320, 330, the first, second and third protrusions 71, 72, 73 will be pressed to be flat, while the protrusions 74, 75 of the other two mounting holes 340, 350 will apply prestress to the contact surface of the vehicle body and the contact surface is very small. In this way, the interference signal generated by the two oscillating bodies under dynamic excitation can be eliminated. In addition, labels can also be added to the other two mounting holes 340, 350 to prevent these two mounting holes from being installed incorrectly by the operator.

[0071] Similarly, when the screws are tightened into the third, fourth and fifth mounting holes 330, 340, 350, the third, fourth and fifth protrusions 73, 74, 75 will be pressed to be flat, while the protrusions 71, 72 of the other two mounting holes 310, 320 will apply prestress to the contact surface of the vehicle body and the contact surface is very small. In this way, the interference signal generated by the two oscillating bodies under dynamic excitation can be eliminated. In addition, labels can also be added to the other two mounting holes 310, 320 to prevent these two mounting holes from being installed incorrectly by the operator.

[0072] Figure 14 and 15 A top view of the substrate 3 of the AB ECU unit according to the fourth embodiment of the present application is shown. Its structure is basically the same as that in the second and third embodiments, except for the construction of each mounting part. Only the differences in the mounting parts are described here.

[0073] Figure 14 and 15 The five mounting portions shown are provided with neither the weakened portion as in the second embodiment nor the protrusion as in the third embodiment.

[0074] In order to prevent the operator from making the wrong connection to each mounting hole and to prevent the unused mounting part from colliding with the vehicle body and causing a jamming sound, thereby generating interference signals, an elastic support member 8 is provided in the present application.

[0075] like Figure 14As shown, when the third, fourth, and fifth mounting holes 330, 340, and 350 are selected for connection to the vehicle body, elastic support members 8, such as those made of rubber, are inserted into the other two mounting holes 310 and 320. This allows the first and second mounting portions to contact the vehicle body via the rubber elastic support members 8, thereby eliminating interference signals generated by the two oscillating bodies under dynamic excitation. Furthermore, the insertion of elastic support members 8 into the first and second mounting holes 310 and 320 prevents operators from incorrectly installing these holes.

[0076] Likewise, Figure 15 As shown, when the first, second, and third mounting holes 310, 320, and 330 are selected for connection to the vehicle body, elastic support members 8, such as those made of rubber, are inserted into the fourth and fifth mounting holes 340 and 350. This elastic support member 8 is made of, for example, a rubber material. This allows the fourth and fifth mounting portions to contact the vehicle body via the rubber elastic support members 8, thereby eliminating interference signals generated by the two oscillating bodies under dynamic excitation. Furthermore, the insertion of elastic support members 8 into the fourth and fifth holes 340 and 350 prevents operators from incorrectly installing these holes.

[0077] The rubber material of the elastic support member 8 can be HDPE, EPDM or NBR. However, the present application is not limited thereto, and the elastic support member 8 can also be made of other elastic materials.

[0078] Figure 16a and 16b The side view and top view of the elastic support member 8 are shown in detail. The elastic support member 8 includes a dome-shaped top 81 and a dome-shaped bottom 83 and a column 82 located between the top 81 and the bottom 83. The diameter of the column 82 is smaller than the diameter of each mounting hole. For example, the diameter of the column 82 is smaller than Preferably about The height of the column portion 82 is equal to or slightly smaller than the thickness of the mounting portion, for example, about 0.8 mm, and can be adjusted to 0.8-1.2 mm according to the thickness of the substrate.

[0079] The total height of the elastic support member 8 can be approximately three times the thickness of the substrate, for example, 2.4 mm to 3.6 mm. The outer diameter d of the elastic support member 8 can be, for example, 8-12 mm, but is not limited thereto. As long as the outer diameter of the elastic support member 8 is smaller than the extended dimension of the substrate mounting portion, that is, does not interfere with the substrate body 30, it can be sufficient.

[0080] Figure 17 and 18 The substrates of the AB ECU unit according to the fifth embodiment of the present application are shown respectively. In which, the substrate 3 with five mounting portions is modified into a set of two substrates, Figure 17The first substrate 3 having the first, second and third mounting portions 31, 32 and 33 is shown in FIG. Figure 18 3 shows a second substrate 3 having a third, a fourth and a fifth mounting portion 34, 35 and 36. The first substrate and the second substrate have the same outer shape and can therefore be manufactured using the same mold.

[0081] The first substrate and the second substrate have the same external dimensions, and the difference lies in the positions of the mounting holes and the mounting portions, for example, Figure 17 The positions of the first mounting portion 31 and the second mounting portion 32 are Figure 18 becomes a flat surface, and similarly, Figure 18 The fourth mounting portion 34 and the fifth mounting portion 35 are located at Figure 17 The surface becomes a flat surface. This design makes it possible to use the same mold to manufacture the first and second substrates. First, a shared mold is provided. When the first or second substrate needs to be manufactured, different plug-ins are inserted into the shared mold at the positions where the first to fifth mounting parts need to be formed. These plug-ins correspond to the five mounting parts, and the corresponding mounting parts can be formed at the desired positions as needed. In this way, there is no need to use two sets of molds. Only one set of shared molds and several plug-ins are needed to achieve the conversion between the two substrates, saving development and tooling costs. Moreover, the two different substrate designs can cover different vehicle installation requirements without bringing additional technical risks. The two variants can share a molding tool, and different inserts can be used to control different products.

[0082] In the present application, the base plate 3 is made of metal material by impact or die forging.

[0083] In various embodiments, the first mounting hole 310 and the fifth mounting hole 350 are shown as oblong holes, and the diameter of the third mounting hole 330 is shown as slightly larger than the diameters of the other mounting holes. This arrangement allows for slight adjustments to the mounting position of the entire base plate 3 on the vehicle body to accommodate errors in the mating mounting positions on the vehicle body. However, the various mounting holes in this application are not limited to this arrangement; other mounting holes may also be configured as oblong holes or holes with larger diameters, and adjustments can be made as needed.

[0084] Although the present invention has been described with respect to preferred embodiments, this is not meant to limit the present invention. It should be understood that the scope of protection of the present invention is defined by the appended claims, and various modifications may be made by those skilled in the art without departing from the scope.

Claims

1. An AB ECU unit for a vehicle, comprising: A housing, the housing having a top wall and a side wall extending downward from a periphery of the top wall and surrounding a downward opening; a substrate, the substrate being mounted on the opening to form a receiving space between the housing and the substrate, the substrate having a substrate body detachably connected to the housing and at least three mounting portions extending from the substrate body toward the periphery for mounting the ABECU unit, each mounting portion being mounted at one mounting point; a printed circuit board installed in the receiving space; as well as a connector electrically connected to the printed circuit board, the connector having an interface capable of being electrically connected from outside the housing, The AB ECU unit is configured such that, among three of the at least three mounting points, a line between two mounting points defines a first direction, and a line between any one of the two mounting points and the remaining mounting points defines a second direction orthogonal to the first direction, and the AB ECU unit can be installed in a state where the interface of the connector is selectively oriented toward one of the first direction and the second direction.

2. The AB ECU unit according to claim 1, wherein: The substrate body is provided with four fixing holes for connecting the printed circuit board, the centers of the four fixing holes are arranged in a square relationship, the printed circuit board is designed to have a square shape, and has four through holes respectively located at the four corners of the square, the positions of the four through holes correspond to the positions of the four fixing holes, and the printed circuit board is connected to the substrate by passing screws through the four through holes and the four fixing holes.

3. The AB ECU unit according to claim 1 or 2, wherein: The substrate body is provided with an interference portion, which interferes with the printed circuit board when the printed circuit board and the connector are installed on the substrate in directions other than the first direction and the second direction, thereby preventing the printed circuit board and the connector from being installed on the substrate in the other directions.

4. The AB ECU unit according to claim 1-3, wherein: The housing has holes corresponding to the fixing holes of the substrate and the through holes of the printed circuit board, thereby simultaneously connecting the housing to the printed circuit board and the substrate.

5. The AB ECU unit according to any one of claims 1 to 4, wherein the plane size of the printed circuit board can be set to 43 mm×43 mm or 57.4 mm×57.4 mm, so that the maximum number of printed circuit boards can be cut out on a 190 mm×390 mm panel.

6. The AB ECU unit according to claim 1 , wherein the substrate is provided with five mounting portions, namely, a first mounting portion having a first mounting hole, a second mounting portion having a second mounting hole, a third mounting portion having a third mounting hole, a fourth mounting portion having a fourth mounting hole, and a fifth mounting portion having a fifth mounting hole, the mounting holes are divided into two groups, namely, a first group of mounting holes consisting of the first, second, and third mounting holes and a second group of mounting holes consisting of the third, fourth, and fifth mounting holes, a first triangle formed by the centers of the first group of mounting holes is congruent with a second triangle formed by the centers of the second group of mounting holes, and the second triangle is rotated 90 degrees clockwise relative to the first triangle, wherein the positions of the first, second, and third mounting holes are defined by vehicle requirements, when the first group of mounting holes is selected to mount the AB ECU unit, the connector is in the first direction, and when the second group of mounting holes is selected to mount the AB ECU unit, the connector is in the second direction, and the mounting holes constitute the mounting points.

7. The AB ECU unit as claimed in claim 6, wherein each mounting portion has a weakened portion defined by a preselected hole at a portion connected to the substrate body to weaken the connection between each mounting portion and the substrate body, thereby facilitating removal of each mounting portion from the substrate body.

8. The AB ECU unit as claimed in claim 7, wherein when the first group of mounting holes is selected for installation, the fourth and fifth mounting portions are removed from the substrate body by disconnecting the weakened portion, or when the second group of mounting holes is selected for installation, the first and second mounting portions are removed from the substrate body by disconnecting the weakened portion.

9. The AB ECU unit according to claim 6, wherein on each mounting portion, a plurality of protrusions are respectively provided on the periphery of the mounting hole and protrude from the bottom surface of the mounting portion toward the surface to be mounted.

10. The AB ECU unit as claimed in claim 9, wherein the plurality of projections are evenly distributed on a circumference around the center of the corresponding mounting hole.

11. The AB ECU unit according to claim 9, wherein the projection is formed by stamping or forging the mounting portion.

12. The AB ECU unit as claimed in claim 9, wherein the number of the bumps on each mounting portion is 2-6, and the height of the bump protruding from the bottom surface of the mounting portion is 0.08-0.2 mm, and the diameter of the bump is 0.6 mm-1.5 mm.

13. The AB ECU unit as described in claim 6, wherein the substrate further includes an elastic support member, and when the first group of mounting holes is selected for installation, the elastic support member is respectively inserted into the fourth and fifth mounting holes, and correspondingly, when the second group of mounting holes is selected for installation, the elastic support member is respectively inserted into the first and second mounting holes.

14. The AB ECU unit according to claim 13, wherein the elastic support member is made of HDPE, EPDM, or NBR material.

15. The AB ECU unit as described in claim 13, wherein the elastic support member includes a dome-shaped top, a dome-shaped bottom and a column portion connecting the top and the bottom, the height of the column portion corresponds to the thickness of the mounting portion, the total height of the elastic support member is approximately 2.4 mm-3.6 mm, and the outer diameter of the elastic support member is smaller than the extended dimension of the mounting portion.

16. The AB ECU unit according to claim 1, wherein: The substrate includes a group of substrates consisting of a first substrate and a second substrate, the first substrate and the second substrate have the same outer dimensions, the first substrate includes a first mounting hole and a first mounting portion, a second mounting portion with a second mounting hole, and a third mounting portion with a third mounting hole, the second substrate includes a third mounting portion with the third mounting hole, a fourth mounting portion with the fourth mounting hole, and a fifth mounting portion with a fifth mounting hole, the triangle formed by the centers of the mounting holes on the first substrate is congruent with the triangle formed by the centers of the mounting holes on the second substrate and are rotated 90 degrees relative to each other, and the mounting holes constitute the mounting points.

17. The AB ECU unit according to claim 16, wherein: The first substrate and the second substrate can be made by the same mold, which includes a shared mold part and inserts for forming the respective mounting parts.

18. A vehicle safety component comprising the AB ECU unit according to any one of claims 1-17.

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