JP2021130357A - Vehicular electronic unit attachment structure - Google Patents

Abstract

To provide a vehicular electronic unit attachment structure which enables improvement of support rigidity of an electronic unit and prevents the electronic unit from having fallen and damaged by vibration caused when a vehicle travels.SOLUTION: A vehicular electronic unit attachment structure 100 includes: a steering support member 104 which extends in a vehicle width direction at the vehicle front side of an instrument panel 102 of a vehicle and is fixed to a vehicle body side surface at both ends; a brace 106 which extends downward from the steering support member and to which a predetermined electronic unit 108 is attached; an upper stay 128 and a lower stay 130 which are attached to the brace spaced apart from each other in a vertical direction, extend from the brace to the vehicle rear side, and located above and below the electronic unit; an upper bracket 132 which connects the upper stay with the electronic unit; and a lower bracket 134 which connects the lower stay with the electronic unit.SELECTED DRAWING: Figure 4

Description

The present invention relates to a vehicle electronic unit mounting structure.

A vehicle such as an automobile has a dash panel that separates a power unit mounting room and a vehicle interior, and an instrument panel that is an interior component arranged on the vehicle interior side of the dash panel. A steering support member is arranged in the space partitioned by the dash panel and the instrument panel.

The steering support member is a member that extends in the vehicle width direction on the vehicle front side of the instrument panel and is fixed to the side surface of the vehicle body such as a dash side panel at both ends, and supports various parts. The various parts supported are not limited to steering suspension parts, but in recent years, predetermined electronic units and the like can also be mentioned.

Patent Document 1 describes a vehicle electronic unit mounting portion structure provided with an electronic unit mounting bracket. This electronic unit mounting bracket has an electronic unit holding portion capable of holding the electronic unit and a mounting portion. In the structure of Patent Document 1, an electronic unit mounting bracket is attached to a vehicle body strength member such as a steering support member via a mounting portion, whereby the electronic unit is supported by the vehicle body strength member.

Japanese Unexamined Patent Publication No. 2008-260515

However, in the structure of Patent Document 1, the electronic unit is simply supported by a steering support member or the like via an electronic unit mounting bracket. Therefore, in the structure of Patent Document 1, in the case of a relatively heavy electronic unit, the electronic unit may fall off or be damaged due to vibration during traveling, and there is room for improvement.

In view of such problems, it is an object of the present invention to provide a vehicle electronic unit mounting structure capable of improving the support rigidity of the electronic unit and preventing the electronic unit from falling off or being damaged by vibration during traveling. There is.

In order to solve the above problems, a typical configuration of the vehicle electronic unit mounting structure according to the present invention is a steering support member extending in the vehicle width direction on the vehicle front side of the vehicle instrument panel and having both ends fixed to the vehicle body side surface. In the vehicle electronic unit mounting structure including the brace extending downward from the steering support member and the brace to which a predetermined electronic unit is mounted, the vehicle electronic unit mounting structure is further mounted on the brace at a distance from each other vertically. It is characterized by being provided with an upper stay and a lower stay extending rearward from the vehicle and located above and below the electronic unit, an upper bracket connecting the upper stay and the electronic unit, and a lower bracket connecting the lower stay and the electronic unit. do.

According to the present invention, it is possible to provide a vehicle electronic unit mounting structure capable of improving the support rigidity of the electronic unit and preventing the electronic unit from falling off or being damaged by vibration during traveling.

It is a figure which shows schematicly with the instrument panel the electronic unit mounting structure for a vehicle which concerns on embodiment of this invention. It is a figure which shows the whole of the electronic unit mounting structure for a vehicle of FIG. It is a figure which shows the state which the electronic unit mounting structure for a vehicle of FIG. 2 is seen from the A direction. It is a figure which shows the main part of the electronic unit mounting structure for a vehicle of FIG. It is a figure which shows the main part of the electronic unit mounting structure for a vehicle of FIG. FIG. 4A is a diagram showing a state in which the vehicle electronic unit mounting structure of FIG. 4 is viewed from the B direction. (B) is a diagram showing a part of FIG. 5 (a). It is a figure which shows the state which the electronic unit mounting structure for a vehicle of FIG. 4 was seen from the C direction.

A typical configuration of the vehicle electronic unit mounting structure according to the embodiment of the present invention is a steering support member extending in the vehicle width direction on the vehicle front side of the vehicle instrument panel and having both ends fixed to the vehicle body side surface, and steering. In a vehicle electronic unit mounting structure including a brace that extends downward from a support member and to which a predetermined electronic unit is mounted, the vehicle electronic unit mounting structure is further mounted on the brace at a vertical distance from the brace to the rear of the vehicle. It is characterized by including an upper stay and a lower stay extending above and below the electronic unit, an upper bracket connecting the upper stay and the electronic unit, and a lower bracket connecting the lower stay and the electronic unit.

In the above configuration, the upper stay attached to the brace supports the electronic unit from above via the upper bracket, and the lower stay supports the electronic unit from below via the lower bracket. As described above, according to the above configuration, since the electronic unit can be supported from both above and below, the support rigidity of the electronic unit is improved. Therefore, it is possible to prevent the electronic unit from falling off or being damaged due to the vertical vibration of the vehicle during traveling.

The upper bracket may be fixed to the rear end of the upper stay, and the lower bracket may be fixed to the rear end of the lower stay. As a result, at the time of assembling, the upper bracket and the lower bracket can be assembled to the upper stay and the lower stay from the vehicle interior side, and the assembling is easy. Further, at the time of maintenance, the electronic unit can be accessed from the vehicle interior side, so that the work is easy.

The electronic unit is configured in a rectangular shape having a width in the front-rear direction of the vehicle, and the lower stay may extend to the rear of the vehicle rather than the upper stay. As a result, the rear end of the upper stay, which is the attachment point of the upper bracket and the upper stay, and the rear end of the lower stay, which is the attachment point of the lower bracket and the lower stay, are at different positions in the vehicle front-rear direction. Therefore, the rectangular electronic unit having a width in the vehicle front-rear direction can be supported from both above and below at different positions in the vehicle front-rear direction. Therefore, since the electronic unit can be stably supported, it is possible to prevent the electronic unit from falling off or being damaged due to vibration during traveling.

The above upper bracket has a front portion attached to the front end portion of the electronic unit, an upper surface portion that bends from the upper end of the front portion and extends to the rear of the vehicle along the electronic unit, and a upper surface portion that bends from the rear end of the upper surface portion and extends upward. It is preferable to have an upper mounting portion to be mounted on the upper stay.

In this way, the upper surface portion of the upper bracket extends from the upper end of the front surface portion toward the rear of the vehicle, that is, toward the center side of the electronic unit along the electronic unit, and is attached to the upper stay via the upper mounting portion at the rear end. .. Therefore, the upper surface portion of the upper bracket can support the electronic unit on the central side of the electronic unit, that is, at a position close to the center of gravity. Therefore, the support rigidity that supports the weight of the electronic unit is improved, and the electronic unit can be prevented from falling off or being damaged.

Further, a ridge line extending in the vehicle width direction is formed at the boundary between the front surface portion and the upper surface portion of the upper bracket. By forming this ridgeline, the upper bracket has high rigidity against a load in the vertical direction of the vehicle. Therefore, it is possible to suppress the vibration transmitted to the electronic unit due to the vibration in the vertical direction of the vehicle during traveling, and it is possible to prevent the electronic unit from falling off or being damaged.

The above brace has a fixing portion fixed to the floor panel of the vehicle, and the position of the fixing portion in the vehicle front-rear direction is such that the upper bracket overlaps with the vehicle front-rear position where the upper bracket is fixed to the electronic unit. It would be nice to have it.

As a result, the rigidity of the brace against the load in the vertical direction of the vehicle is improved between the portion where the upper bracket is fixed to the electronic unit and the fixed portion of the brace. Therefore, it is possible to suppress the transmission of the vibration of the vehicle in the vertical direction during traveling from the brace to the electronic unit, and prevent the electronic unit from falling off or being damaged.

The lower bracket is a rear surface portion attached to the rear end portion of the electronic unit, a lower surface portion that bends from the lower end of the rear surface portion and extends forward along the electronic unit, and a lower surface portion that bends from the front end portion of the lower surface portion and extends downward. It is preferable to have a lower mounting portion to be mounted on the lower stay.

In this way, the lower surface portion of the lower bracket extends from the lower end of the rear surface portion toward the front of the vehicle, that is, toward the center side of the electronic unit along the electronic unit, and is attached to the lower stay via the lower attachment portion at the front end thereof. .. Therefore, the lower surface portion of the lower bracket can support the electronic unit on the central side of the electronic unit, that is, at a position close to the center of gravity. Therefore, the support rigidity that supports the weight of the electronic unit is improved, and the electronic unit can be prevented from falling off or being damaged.

Further, a ridge line extending in the vehicle width direction is formed at the boundary between the rear surface portion and the lower surface portion of the lower bracket. By forming this ridgeline, the lower bracket has higher rigidity against a load in the vertical direction of the vehicle. Therefore, it is possible to suppress the vibration transmitted to the electronic unit due to the vibration in the vertical direction of the vehicle during traveling, and it is possible to prevent the electronic unit from falling off or being damaged.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the examples are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. do.

FIG. 1 is a diagram schematically showing a vehicle electronic unit mounting structure 100 according to an embodiment of the present invention together with an instrument panel 102. In each of the following figures, the front-rear direction of the vehicle is illustrated by arrows Front and Back, the left and right in the vehicle width direction are illustrated by arrows Left and Right, and the vehicle vertical direction is illustrated by arrows Up and Down, respectively.

The vehicle electronic unit mounting structure 100 includes a steering support member 104 located on the vehicle front side of the vehicle instrument panel 102, and a brace 106 (see FIG. 2).

FIG. 2 is a diagram showing the entire vehicle electronic unit mounting structure 100 of FIG. In the figure, the instrument panel 102 shown in FIG. 1 is omitted, and the vehicle electronic unit mounting structure 100 is shown as viewed from diagonally rearward. FIG. 3 is a diagram showing a state in which the vehicle electronic unit mounting structure 100 of FIG. 2 is viewed from the A direction.

The steering support member 104 is a member that extends in the vehicle width direction on the vehicle front side of the instrument panel 102 and is fixed to the side surface of the vehicle body such as a dash side panel (not shown) at both ends. As shown in FIG. 2, the brace 106 is a member that extends downward from the steering support member 104 and to which a predetermined electronic unit 108 is attached.

The electronic unit 108 is a so-called telematics control unit (TCU). The TCU is indispensable for realizing a "connected car" as represented by a connected car. In a car equipped with a TCU, by communicating with the TCU via a server, it is possible to receive a service that tells, for example, forgetting to lock or erase a hazard, or to use a request service to a dedicated operator.

Further, the electronic unit 108 is connected to the antenna 112 via the harness 110 as shown in FIG. The electronic unit 108 can communicate with the outside by the antenna 112. A steering stiffener 114 extending to the front of the vehicle is fixed to the steering support member 104. The antenna 112 is fixed to an antenna bracket 116 extending upward from the steering stiffener 114. In this way, the antenna 112 is installed above the vehicle, ensuring a good reception environment. The harness 110 connected to the electronic unit 108 is fixed to the brace 106, the steering support member 104, the steering stiffener 114, and the like as shown in the figure, and the end 118 is further connected to the antenna 112.

In this embodiment, since the electronic unit 108 itself is installed below the vehicle, the communication performance of the electronic unit 108 is ensured by separately installing the antenna 112 from the electronic unit 108 and further installing the antenna 112 above the vehicle. .. Further, as shown in FIG. 3, the electronic unit 108 is configured in a rectangular shape having a width in the front-rear direction of the vehicle.

The fixing portion 122 shown in FIG. 3 is connected to the lower end 120 of the brace 106. The fixing portion 122 is fixed to the brace bracket 126 connected to the floor panel 124. In this way, the brace 106 is indirectly fixed to the floor panel 124 via the fixing portion 122 and the brace bracket 126.

The vehicle electronic unit mounting structure 100 further includes an upper stay 128 and a lower stay 130, and an upper bracket 132 and a lower bracket 134 as shown in the figure.

FIG. 4 is a diagram showing a main part of the vehicle electronic unit mounting structure 100 of FIG. FIG. 5 is a diagram showing a main part of the vehicle electronic unit mounting structure 100 of FIG. FIG. 5A is a diagram showing a state in which the vehicle electronic unit mounting structure 100 of FIG. 4 is viewed from the B direction. FIG. 5B is a diagram showing a part of FIG. 5A. FIG. 6 is a diagram showing a state in which the vehicle electronic unit mounting structure 100 of FIG. 4 is viewed from the C direction.

As shown in FIG. 5B, the upper stay 128 and the lower stay 130 are attached to the brace 106 with the front ends 136 and 138 separated from each other in the vertical direction. Further, the upper stay 128 and the lower stay 130 have rear ends 140 and 142 extending from the brace 106 to the rear of the vehicle and further bending to the left in the vehicle width direction as shown in FIG. Further, the upper stay 128 and the lower stay 130 are located above and below the electronic unit 108, as shown in FIGS. 3 and 4.

The upper bracket 132 is a member that connects the upper stay 128 and the electronic unit 108. As shown in FIGS. 4 and 6, the upper bracket 132 has a front surface portion 144, an upper surface portion 146, an upper mounting portion 148, and an extension portion 150. The front surface portion 144 is a portion attached to the front end portion 152 of the electronic unit 108. The upper surface portion 146 is a portion that bends from the upper end 154 of the front surface portion 144 and extends to the rear of the vehicle along the upper surface 155 of the electronic unit 108.

The upper mounting portion 148 is a portion that bends from the rear end 156 of the upper surface portion 146, extends upward, and is mounted on the rear end 140 of the upper stay 128. As shown in FIG. 4, the upper mounting portion 148 is mounted on the rear end 140 of the upper stay 128 facing the front of the vehicle. The extension portion 150 is a portion that bends from the upper end 158 of the upper mounting portion 148 and extends forward of the vehicle. Further, the extension portion 150 has a harness mounting portion 160 for mounting the harness 110 connected to the electronic unit 108.

The lower bracket 134 is a member that connects the lower stay 130 and the electronic unit 108. As shown in FIGS. 4 and 5A, the lower bracket 134 has a rear surface portion 162, a lower surface portion 164, and a lower mounting portion 166. The rear surface portion 162 is a portion attached to the rear end portion 168 of the electronic unit 108. The lower surface portion 164 is a portion that bends from the lower end 170 of the rear surface portion 162 and extends forward along the lower surface 171 of the electronic unit 108. The lower mounting portion 166 is a portion that bends from the front end 172 of the lower surface portion 164, extends downward, and is mounted on the rear end 142 of the lower stay 130. As shown in FIG. 4, the lower mounting portion 166 is mounted on the rear end 142 of the lower stay 130 facing the front of the vehicle.

Therefore, in the vehicle electronic unit mounting structure 100, the upper stay 128 supports the electronic unit 108 from above via the upper bracket 132, and the lower stay 130 supports the electronic unit 108 from below via the lower bracket 134. Therefore, according to the vehicle electronic unit mounting structure 100, the electronic unit 108 can be supported from both above and below. Therefore, the support rigidity of the electronic unit 108 is improved, and it is possible to prevent the electronic unit 108 from falling off or being damaged due to vibration in the vertical direction of the vehicle during traveling.

Further, in the vehicle electronic unit mounting structure 100, while supporting the electronic unit 108 from both above and below, the electronic unit 108 is tilted upward toward the rear of the vehicle as shown in FIG. I support it. By supporting the electronic unit 108 in such a posture, even when the space between the brace 106 and the instrument panel 102 (see FIG. 1) is narrow, rectangular electrons having a width in the front-rear direction of the vehicle The unit 108 can be installed reliably.

Further, in the vehicle electronic unit mounting structure 100, the upper bracket 132 is fixed to the rear end 140 of the upper stay 128, and the lower bracket 134 is fixed to the rear end 142 of the lower stay 130. Therefore, at the time of assembling, the upper bracket 132 and the lower bracket 134 can be assembled to the upper stay 128 and the lower stay 130 from the vehicle interior side, and the assembling is easy. Further, at the time of maintenance, the electronic unit 108 can be accessed from the vehicle interior side, so that the work is easy.

Further, as shown in FIG. 3, the lower stay 130 extends further to the rear of the vehicle than the upper stay 128. Therefore, the rear end 140 of the upper stay 128, which is the attachment point of the upper bracket 132 and the upper stay 128, and the rear end 142 of the lower stay 130, which is the attachment point of the lower bracket 134 and the lower stay 130, are in the front-rear direction of the vehicle. They are in different positions.

Therefore, in the vehicle electronic unit mounting structure 100, the electronic unit 108 having a width in the vehicle front-rear direction can be stably supported from both above and below at different positions in the vehicle front-rear direction. Therefore, it is possible to prevent the electronic unit 108 from falling off or being damaged due to vibration during traveling.

Further, as shown in the dotted line D, the fixed portion 122 of the brace 106 shown in FIG. 3 has a position in the vehicle front-rear direction that is fixed to the electronic unit 108 in the upper bracket 132, that is, a position in the vehicle front-rear direction of the front portion 144. It is in a position where it overlaps when viewed from above. Therefore, the rigidity of the brace 106 with respect to the vertical load of the vehicle is improved between the front surface portion 144 in which the upper bracket 132 is fixed to the electronic unit 108 and the fixing portion 122 of the brace 106. Therefore, in the vehicle electronic unit mounting structure 100, it is possible to suppress the transmission of vibration in the vertical direction of the vehicle from the brace 106 to the electronic unit 108 during traveling, and prevent the electronic unit 108 from falling off or being damaged.

Further, the upper surface portion 146 of the upper bracket 132 extends from the upper end 154 of the front end portion 144 toward the rear of the vehicle, that is, toward the center side of the electronic unit 108 along the upper surface 155 of the electronic unit 108, and the upper mounting portion 148 at the rear end 156. It is attached to the upper stay 128 via. Therefore, the upper surface portion 146 of the upper bracket 132 can support the electronic unit 108 on the central side of the electronic unit 108, that is, at a position close to the center of gravity. As a result, the support rigidity for supporting the weight of the electronic unit 108 by the upper bracket 132 is improved, and the electronic unit 108 can be prevented from falling off or being damaged.

Further, as shown in FIGS. 4 and 6, a ridge line E extending in the vehicle width direction is formed at the upper end 154 of the front surface portion 144 which is a boundary between the front surface portion 144 and the upper surface portion 146 of the upper bracket 132. By forming the ridge line E, the upper bracket 132 has high rigidity against a load in the vertical direction of the vehicle, and can suppress the vibration transmitted to the electronic unit 108 due to the vibration in the vertical direction of the vehicle while traveling, and the electronic unit 108 can be suppressed. Can be prevented from falling off or being damaged.

Further, the lower surface portion 164 of the lower bracket 134 extends from the lower end 170 of the rear surface portion 162 toward the front of the vehicle, that is, toward the center side of the electronic unit 108 along the electronic unit 108, and lowers at the front end 172 via the lower mounting portion 166. It is attached to the stay 130. Therefore, the lower surface portion 164 of the lower bracket 134 can support the electronic unit 108 on the central side of the electronic unit 108, that is, at a position close to the center of gravity. As a result, the support rigidity for supporting the weight of the electronic unit 108 by the lower bracket 134 is improved, and the electronic unit 108 can be prevented from falling off or being damaged.

Further, as shown in FIGS. 4 and 5, a ridge line F extending in the vehicle width direction is formed at the lower end 170 of the rear surface portion 162 which is the boundary between the rear surface portion 162 and the lower surface portion 164 of the lower bracket 134. By forming the ridge line F, the lower bracket 134 has high rigidity against a load in the vertical direction of the vehicle, and can suppress the vibration transmitted to the electronic unit 108 due to the vibration in the vertical direction of the vehicle while traveling, and the electronic unit 108 can be suppressed. Can be prevented from falling off or being damaged.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

The present invention can be used in a vehicle electronic unit mounting structure.

100 ... Vehicle electronic unit mounting structure, 102 ... Instrument panel, 104 ... Steering support member, 106 ... Brace, 108 ... Electronic unit, 110 ... Harness, 112 ... Antenna, 114 ... Steering stiffener, 116 ... Antenna bracket, 118 ... Antenna end, 120 ... lower end of brace, 122 ... fixed part, 124 ... floor panel, 126 ... brace bracket, 128 ... upper stay, 130 ... lower stay, 132 ... upper bracket, 134 ... lower bracket, 136 ... upper stay Front end, 138 ... Front end of lower stay, 140 ... Rear end of upper stay, 142 ... Rear end of lower stay, 144 ... Front part, 146 ... Upper surface part, 148 ... Upper mounting part, 150 ... Extension part, 152 ... Electronics The front end of the unit, 154 ... the upper end of the front surface, 155 ... the upper surface of the electronic unit, 156 ... the rear end of the upper surface, 158 ... the upper end of the upper mounting portion, 160 ... the harness mounting portion, 162 ... the rear surface portion, 164 ... the lower surface portion. , 166 ... Lower mounting part, 168 ... Rear end of the electronic unit, 170 ... Lower end of the rear surface, 171 ... Lower surface of the electronic unit, 172 ... Front end of the lower surface, E, F ... Ridge line

Claims (6)

A steering support member that extends in the vehicle width direction on the vehicle front side of the vehicle instrument panel and has both ends fixed to the side of the vehicle body.
In a vehicle electronic unit mounting structure including a brace extending downward from the steering support member to which a predetermined electronic unit is mounted, the vehicle electronic unit mounting structure further comprises.
Upper stays and lower stays that are attached to the brace vertically apart from each other, extend from the brace to the rear of the vehicle, and are located above and below the electronic unit.
An upper bracket that connects the upper stay and the electronic unit,
A vehicle electronic unit mounting structure including a lower bracket that connects the lower stay and the electronic unit. The upper bracket is fixed to the rear end of the upper stay.
The vehicle electronic unit mounting structure according to claim 1, wherein the lower bracket is fixed to the rear end of the lower stay. The electronic unit is configured in a rectangular shape having a width in the front-rear direction of the vehicle.
The vehicle electronic unit mounting structure according to claim 1 or 2, wherein the lower stay extends further to the rear of the vehicle than the upper stay. The upper bracket
A front portion attached to the front end portion of the electronic unit and a front portion
An upper surface portion that bends from the upper end of the front surface portion and extends to the rear of the vehicle along the electronic unit.
The vehicle electronic unit mounting structure according to any one of claims 1 to 3, further comprising an upper mounting portion that bends from the rear end of the upper surface portion and extends upward to be mounted on the upper stay. The brace has a fixed portion that is fixed to the floor panel of the vehicle.
The position of the fixing portion in the vehicle front-rear direction is any one of claims 1 to 4, wherein the upper bracket is located at a position where the upper bracket is fixed to the electronic unit in the vehicle front-rear direction and overlaps with the position in the vehicle front-rear direction. Vehicle electronic unit mounting structure described in. The lower bracket
A rear surface portion attached to the rear end portion of the electronic unit and
A lower surface portion that bends from the lower end of the rear surface portion and extends to the front of the vehicle along the electronic unit, and a lower surface portion.
The vehicle electronic unit mounting structure according to any one of claims 1 to 5, further comprising a lower mounting portion that bends from the front end of the lower surface portion and extends downward to be mounted on the lower stay.

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