JP7175103B2 - Protector mounting structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mounting structure of a protector for protecting mounted objects and a vehicle body mounted on a vehicle.

A protector is provided to protect various mounted objects mounted on a vehicle, such as a battery module (secondary battery) for driving and high-voltage parts for controlling it, against input from the outside.
In addition, it is necessary to protect the vehicle body and its parts against inputs such as shocks received by the vehicle from the outside.

For example, Patent Document 1 discloses a structure in which an underrun protector body is attached to a vehicle body side stay by means of a bracket. ing.
As a result, the inclined surface portions on both sides are slidably deformed so as to open to both sides along the underrun protector main body, and can absorb the impact.
However, the connection structure disclosed in the publication has a technical problem in that it can absorb impact only in one direction in which the inclined surface portion of the bracket is deformed in the opening direction.
In addition, there is also a problem in designing that the bracket and the protector body must be slid while holding the fastening portion.

JP 2017-94961 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a protector mounting structure which is simple in structure and has a high protective effect.

A protector mounting structure according to the present invention includes a protector and a bracket for mounting the protector to a vehicle, the protector having an insertion recess, the bracket having an insertion projection, and the bracket The protector and the bracket are connected in a state in which the insertion projection is inserted into the insertion recess of the protector.

Here, the protector is for protecting the mounted objects, the vehicle body, etc. of the vehicle from external input.
The bracket is for attaching this protector to the vehicle body side, and there is no limitation on the attachment structure between the bracket and the vehicle body side, and examples thereof include bolting, welding, and the like.

The present invention is characterized in that the protector and the bracket are connected to each other in a state in which the insertion protrusions on the bracket side are inserted into the insertion recesses provided in the protector. It is fastened or welded.

In the present invention, various aspects can be applied to the insertion structure.
For example, the protector has a hollow cross-sectional shape, and the hollow part functions as the insertion recess.
By making the protector a hollow cross-sectional shape, it is possible to increase the amount of energy absorption due to its cross-sectional deformation, and it is applied in the vertical direction to the protector through the insertion protrusion of the bracket that is inserted into the hollow part of the protector. Not only the input, but also the diagonal and horizontal external input is transmitted to the vehicle body side through the bracket, and the protection effect is high.
In addition, for example, when the protector and the bracket are bolted together, the insertion connecting portion can prevent the external force from concentrating on the bolted portion.

In the present invention, the hollow cross-sectional shape of the protector may have a sloped portion in a direction intersecting with the mounting surface of the bracket on the vehicle side.
By forming such slopes on the protector, the external force applied to the slopes can be dispersed in various directions such as horizontal and vertical directions.

Further, in the present invention, there is an example in which the insertion recess of the protector is composed of a pair of rail portions arranged opposite to each other.
In this way, both sides of the insertion projection provided on the bracket can be connected so as to be supported by the pair of rails on the protector side.
Also, the brackets may be arranged on both sides of the protector so as to face each other.
When the protector is attached with a pair of brackets arranged to face each other, a protective effect is produced against external forces from any of the vertical, horizontal, and front/rear directions.

In the mounting structure of the protector according to the present invention, since the protector and the bracket are fastened while the protector and the bracket are mutually inserted and connected, it is possible to prevent the load from concentrating on the fastening portion. .
In addition, when the fastening portion is broken due to an unexpectedly large input, the protector can be held by the insertion connecting portion, and the protector can be prevented from coming off.
Input to the protector from the outside is transmitted to the bracket through the insertion connecting part, and is transmitted to the vehicle body. Compactness can be achieved.

4 shows a mounting structure of a protector according to the present invention; (a) is a perspective view of a protector and a bracket, and (b) shows a connected state. (c) corresponds to a cross-sectional view taken along the line AA and shows a state in which the protector is attached to the vehicle body via the bracket. 2 shows a cross-sectional view taken along the line BB of FIG. 1; FIG. (a) shows a perspective view before the bracket is inserted into the protector, and (b) shows a perspective view after the insertion. An example in which a slant portion is provided in the cross-sectional shape of the protector is shown, (a) is a perspective view, and (b) is a partial enlarged view of a CC line cross-sectional view. An example in which a protector is provided with a pair of rail portions is shown, (A) shows a state before the bracket is inserted into the protector, and (b) shows a state where the bracket is connected near both ends of the protector. FIG. 5 is a partial enlarged view of FIG. 5, where (a) is before connection, (b) is after connection, and (c) is a cross-sectional view taken along line DD. 3 shows another embodiment of the insertion recess provided in the protector. (a) shows the state before insertion connection, (b) shows the state after the connection, and (c) shows a perspective view of the bracket as seen from the side of the insertion protrusion.

The present invention is intended to be installed on the outside of a battery module or the like when it is mounted on a vehicle to protect these mounted objects from external input. There are no restrictions on the shape.
A rectangular pipe-shaped protector will be described below as an example.

FIG. 1 shows an example of connection between a protector 10 having a hollow cross-section and a plate-like bracket 20 .
FIG. 1(a) shows the state before the bracket 20 is connected to the protector 10, and FIG. 1(b) shows the state after the connection.
FIG. 3 shows a perspective view of the vicinity of the end of the protector 10 and the bracket 20. FIG.
FIG. 1(c) shows a state in which the protector 10 and the bracket 20 are connected and attached to the mounting portions 1, 1 of the vehicle body, corresponding to the sectional view taken along the line AA in FIG. 1(b). , and FIG. 2 shows the connected state of the protector 10 and the bracket 20 corresponding to the BB line cross-sectional view of FIG.
The protector 10 has a hollow cross-sectional shape having a hollow portion 11 and one side surface thereof is notched to form a holding portion 13 and an insertion recess 12 for the bracket 20 .
The bracket 20 has, as shown in FIGS.
The insertion convex portion 21 has a joint portion 21a with the rear surface of the base portion 20a of the bracket 20, and an insertion portion extending from the joint portion 21a toward the protector 10 side via a stepped portion (drooping wall) 21b. A portion 21c is formed.
As a result, an insertion portion 21d of the upper wall 10a of the protector 10 on the notch portion side is formed between the base portion 20a of the bracket 20 and the insertion portion 21c.

As a result, as shown in FIGS. 1 and 3, when the base portion 20a of the bracket 20 is slid along the pair of holding portions 13 formed of side wall portions formed on both sides of the notch portion of the protector 10, the bracket 20 is supported. The provided insertion protrusion 21 is slidably inserted into the insertion recess 12 formed of the hollow portion of the protector 10 .
At this time, the upper wall 10a of the protector 10 on the notch side is inserted into the insertion portion 21d between the base portion 20a and the insertion portion 21c.
As shown in FIGS. 2 and 3B, the bracket 20 and the protector 10 are inserted and connected.
The protector 10 and the bracket 20 thus inserted and connected are connected as follows.
For example, as shown in FIGS. 1A and 3, a connecting portion (connecting hole) 14 formed of a through hole provided in the upper wall 10a of the protector 10 and an insertion projection of the bracket 20 provided corresponding thereto. A connecting portion (connecting hole) 22 formed of a through hole on the side is connected with a bolt 30 and a nut 30a.
Alternatively, joining such as welding may be used.

As shown in FIG. 1C, the protector 10 and the bracket 20 are connected to each other as described above. As shown in FIG. 23, bolts 31, nuts 31a, and the like are used to attach them.
Since the upper wall 10a of the protector is inserted into the insertion portion 21d of the bracket 20, the protector 10 is prevented from coming off.

FIG. 4 shows a cross-sectional shape of protector 110 .
In this embodiment, as shown in the CC line cross-sectional view of FIG. 4(b), the hollow cross-sectional shape of the protector 110 includes an upper wall 110a on the side that overlaps the bracket 20, a lower wall 110c that faces the upper wall 110c, and left and right side walls. 110b and 110d, and in FIG. 4B, the middle of the left side wall 110d and the middle of the lower wall 110c are connected by an oblique slope portion 110e.
In this way, when the protector 110 is formed with the slanted portion 110e in the direction intersecting with the connecting surface of the bracket, when an external input is applied from the direction indicated by the arrow f in FIG. The external force is transmitted to the vehicle body side via the bracket 20 while the force is distributed to each side wall.

5 and 6 show an example in which the protector 210 is provided with a pair of rail portions 210a and 210b.
In this embodiment, an insertion piece 24 is provided protruding from the side edge of the bracket 20, and the base portion 20a of the bracket 20 is placed on the upper wall 210c of the protector 210, while the insertion piece 24 is arranged to face a pair of paired brackets. This is an example of connecting by inserting between rail portions 210a and 210b having an L-shaped cross section.
In this embodiment, by forming a notch in the upper wall 210c of the hollow portion, the insertion convex portion 21 can be removed while the base portion 20a of the bracket 20 is held by the holding portions 13c on both sides. This is an example in which it is combined with a structure that is inserted into the insertion recess 12 on the protector 210 side and connected.
As shown in FIG. 6(c), which is a sectional view taken along line DD of this embodiment, the upper wall of the protector 210 is connected so as to be sandwiched between the insertion protrusion 21 and the insertion piece 24, so that the protector The applied external force is transmitted to the entire bracket 20, and the concentration of the external force on the fastening portion of the bolt 30 and nut 30a fastening the protector and the bracket is suppressed.
In this embodiment, only the insertion piece 24 of the bracket 20 and the pair of rail portions 210a and 210b may be connected by insertion.

FIG. 1 shows an example in which the end (upper wall end) of a protector having a hollow cross section is cut away to form an insertion recess 12. FIG. An example in which a square hole is formed in the wall) to form the insertion recess 12 is shown.
The bracket 20 shown in FIG. 1 shows an example in which the insertion convex portion 21 is joined to the back side of the base portion 20a, but FIG. An example in which a folded insertion convex portion 21 is formed is shown.
As described above, in the present invention, as long as the protector and the bracket can be inserted and connected, the structure of the insertion recess provided on the protector and the structure of the insertion protrusion provided on the bracket are not limited.
Further, in the embodiment shown in FIG. 7, an example is shown in which the protrusion 21e extending horizontally from the mounting surface of the bracket 20 is formed integrally with the insertion protrusion 21 on the bracket 20. As shown in FIG.
As a result, an insertion portion 21d for inserting the end of the protector 10 on the side of the insertion recess is provided between the insertion projection 21 and the projecting piece 21e.

10 Protector 11 Hollow Part 12 Insertion Recess 13 Holding Part 14 Connection Part 20 Bracket 21 Insertion Protrusion 21e Protruding Piece Part 22 Connection Part 23 Mounting Part 24 Insertion Piece

Claims (3)

a protector having a square pipe-like hollow cross section ;
A plate-shaped bracket for attaching the protector to the vehicle side,
The protector has a holding portion for holding the back side of the bracket and an insertion recess by cutting one side surface of the hollow cross-sectional shape to form a cutout portion, and the plate-shaped bracket is provided on the back side. an insertion portion extending toward the insertion recess of the protector through a stepped portion so as to form an insertion portion in the
When the insertion portion of the bracket is inserted into the insertion recess of the protector, the upper wall on the side of the notch portion is inserted into the insertion portion, and the rear surface side of the bracket is held by the holding portion. and the bracket are connected to each other . 2. The mounting structure of the protector according to claim 1 , wherein the hollow cross-sectional shape of the protector has a slant portion in a direction intersecting the mounting surface of the bracket on the vehicle side. 3. The protector mounting structure according to claim 1, wherein said brackets are arranged on opposite ends of said protector, respectively.

Images