Protection structure for high-voltage components

Abstract

To protect a wiring part in a rear surface side of a high voltage component at the time of back impact.SOLUTION: A protective structure of a high voltage component comprises: a bottom part having the high voltage component fixed thereto, the high voltage component with a connector to which a wire harness is connected at a rear face, and fixed to a vehicle body; a lateral wall which is concatenated with the bottom part and arranged in a right and left direction of the vehicle; a protection part which is at a position higher than the wire harness and protrudes from the lateral wall to one side in the right and left direction of the vehicle; and a groove part which is arranged from a top end of the lateral wall toward the lower side and formed at a rear side relative to the connector.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a protection structure for high-voltage components.

Background Art

[0002] Patent Document 1 discloses a rear structure of a vehicle that suppresses damage to high-voltage components by moving the high-voltage components to the front side of the vehicle while maintaining the mounting state of the high-voltage components to the vehicle body during a rear-end collision. In this rear structure, a front cross member on the front side of the rear floor and a rear cross member on the rear side extend in the vehicle width direction, respectively. Further, the front cross member and the rear cross member are arranged at intervals in the vehicle front-rear direction. On the upper surface of the rear floor, a high-voltage component is arranged between the front cross member and the rear cross member. The front cross member is arranged from above with respect to the rear floor, and both ends in the vehicle width direction are connected to the lower ends of left and right brace members that extend vertically on the vehicle body side portion. The rear cross member is arranged from below with respect to the rear floor. The high-voltage component is arranged at a distance rearward from the front cross member and closer to the rear cross member side than the front cross member. The high-voltage component is attached to the front cross member and the rear cross member, and is attached to the front cross member via a bracket that deforms with respect to the load in the vehicle front-rear direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] High-voltage components are connected to wire harnesses via connectors, and these connectors are sometimes located on the rear surface of the high-voltage components. In the configuration described in Patent Document 1, the rear of the high-voltage component deforms during a rear-end collision. In this case, it is desirable to protect wiring components such as connectors and wire harnesses.

[0005] The present invention has been made in view of the above, and aims to protect the wiring components on the rear side of high-voltage components in the event of a rear-end collision. [Means for solving the problem]

[0006] The protective structure for high-voltage components according to the present invention comprises a bottom portion fixed to the vehicle body and to which a high-voltage component having a connector on its rear surface to which a wire harness is connected is fixed; a side wall provided in the left-right direction of the vehicle body, connected to the bottom portion; a protective portion protruding from the side wall in one direction in the left-right direction of the vehicle body at a position higher than the wire harness; and a groove portion provided downward from the upper end of the side wall and formed behind the connector.

[0007] This design prevents the wire harness from being pinched between the upper component and the bottom, and when the bottom is deformed by a rear impact, it bends at the groove behind the connector, preventing the bottom from contacting the connector and thus protecting the connector.

[0008] Furthermore, in the above, the protective portion may be formed on both the left-side wall and the right-side wall of the vehicle body.

[0009] This prevents the wire harness from being pinched between the upper component and the bottom component in the direction of extension of the upper wire harness.

[0010] Furthermore, in the above, multiple grooves may be formed in the side wall.

[0011] This allows the connector to bend at multiple grooves behind it during a rear-end collision, thus protecting the connector from the bent bottom.

[0012] Furthermore, in the above, the protective part may be positioned below the seat.

[0013] This prevents the wire harness from getting caught between the seat and the floor, thanks to the protective mechanism. [Effects of the Invention]

[0014] The protective structure for high-voltage components according to the present invention has the effect of protecting the wiring components on the rear side of the high-voltage component in the event of a rear-end collision. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 is a perspective view of a protection structure for high-voltage components according to an embodiment. [Figure 2] Figure 2 is a perspective view of the bracket according to the embodiment. [Figure 3] Figure 3 is a perspective view of the bracket according to the embodiment. [Figure 4] Figure 4 is a schematic diagram of the protective structure according to the embodiment. [Modes for carrying out the invention]

[0016] Embodiments of the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below. Furthermore, in the drawings, the same or corresponding elements are appropriately denoted by the same reference numerals. It should also be noted that the drawings are schematic, and the dimensional relationships of each element may differ from those in reality. Even between drawings, there may be parts where the dimensional relationships and ratios differ.

[0017] FIG. 1 is a perspective view of a protection structure for high-voltage components according to an embodiment of the present invention. FIG. 1 shows high-voltage components arranged under the rear seat of a vehicle. In FIG. 1, the illustration of the rear seat is omitted. In the drawing, the upward direction of the vehicle is indicated by arrow U, the forward direction of the vehicle is indicated by arrow F, and the leftward direction of the vehicle is indicated by arrow L.

[0018] The high-voltage component 20 is, for example, a DC-DC converter mounted on a vehicle. The high-voltage component 20 is a device that converts and outputs a DC voltage from a DC power source. Note that the high-voltage component 20 is not limited to a DC-DC converter and may be other components that handle high DC voltages. By arranging the high-voltage component 20 under the rear seat in the passenger compartment, the vehicle can secure space in the power control unit, which is usually provided in the engine compartment, compared to a configuration where the high-voltage component 20 is arranged in the power control unit.

[0019] The bracket 10 is a metal component for fixing the high-voltage component 20 in the vehicle. The bracket 10 is fixed to the vehicle body by bolts and nuts. The high-voltage component 20 is fixed to the upper surface of the bracket 10 by, for example, bolts and nuts. The bracket 10 fixed to the vehicle body and the high-voltage component 20 fixed to the bracket 10 are located under the rear seat of the vehicle.

[0020] The wire harness 30 is a bundle of wires for transmitting power and wires for transmitting electrical signals. The connector 40 is a component for electrically connecting the wire harness 30 to the high-voltage component 20. The connector 40 and the wire harness 30 are an example of wiring components. A voltage of, for example, several tens of volts or more is applied to the connector 40 and the wire harness 30. The connector 40 is provided on the rear surface of the high-voltage component 20. The wire harness 30 is connected to the high-voltage component 20 via the connector 40. The wire harness 30 electrically connected to the high-voltage component 20 via the connector 40 is routed along the upper surface of the bracket 10 on the rear surface side of the high-voltage component 20. <9000090>

[0021] Figures 2 and 3 are perspective views of the bracket 10. The bracket 10 has a bottom portion 103 that constitutes the bottom surface of the bracket 10. Further, the bracket 10 has a side wall portion 104a of a predetermined height extending upward along the front-rear direction on the right side of the vehicle, which is continuous with the bottom portion 103, and a side wall portion 104b of a predetermined height extending upward along the front-rear direction on the left side of the vehicle, which is continuous with the bottom portion 103. Further, the bracket 10 includes a protection portion 101 and a groove portion 102 in order to protect the connector 40 and the wire harness 30 when they are rear-protruded. The bracket 10 provided with the protection portion 101 and the groove portion 102 is an example of a protection structure. The protection portion 101 is continuous with the upper end of the side wall portion 104a and protrudes a predetermined length on the right side of the vehicle. The protection portion 101 is formed in a plate shape. The protection portion 101 is, for example, rectangular when viewed from above, but may have a shape other than rectangular. The groove portion 102 is a groove formed in the side wall portion 104a with a predetermined width in the front-rear direction and a predetermined depth in the vertical direction. The groove portion 102 is formed behind the connector 40 and in front of the protection portion 101 when viewed in the front-rear direction.

[0022] Figure 4(a) is a schematic view of the protection structure. In Figure 4(a), a high-voltage component 20, a connector 40, a wire harness 30, the side wall portion 104a, and the cross-sections of the bottom portion 103 and the vehicle body 1 are shown as viewed from the side wall portion 104b side. Above the protection portion 101, a pipe 50 that constitutes the skeleton of the rear seat of the vehicle is located. The pipe 50 is arranged along the left-right direction of the vehicle. The wire harness 30 is arranged on the bottom portion 103 so as to be positioned below the height of the upper end of the protection portion 101.

[0023] The pipe 50 deflects downward and deforms when a person sits on the rear seat. Since the deflected pipe 50 comes into contact with the protection portion 101 and the downward deformation is stopped, the wire harness 30 can be prevented from being damaged by being sandwiched between the pipe 50 and the bottom portion 103.

[0024] Figure 4(b) is a schematic diagram of a protective structure deformed by a rear-end collision. In Figure 4(b), the high-voltage component 20, connector 40, wire harness 30, and side wall 104a are shown as viewed from the side wall 104b. The high-voltage component 20, connector 40, and wire harness 30, which are related to high voltage, are required by law to be protected in the event of a rear-end collision. Since the bracket 10 has a groove 102, when a vehicle is rear-ended, it bends at the position of the groove 102, which has low rigidity, as shown in Figure 4(b). Since the groove 102 is located away from the connector 40, the position where the bracket 10 bends in the event of a rear-end collision is also away from the connector 40. Because the bracket 10 bends away from the connector 40 in the event of a rear-end collision, the deformed bracket 10 is prevented from contacting the connector 40, thereby protecting both the connector 40 and the high-voltage component 20. Furthermore, when the bracket 10 is bent in the groove 102, the protective part 101 prevents contact between the pipe 50 and the wire harness 30, thus preventing damage to the wire harness 30 when the bracket 10 is bent and protecting the wire harness 30.

[0025] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above and can be implemented in various other forms. For example, the present invention may be implemented by modifying the embodiments described above as follows. The embodiments described above and the following modifications may be combined with each other. The present invention is also included in configurations that appropriately combine the components of each embodiment and each modification described above. Furthermore, further effects and modifications can be easily derived by those skilled in the art. Therefore, broader embodiments of the present invention are not limited to the embodiments and modifications described above, and various modifications are possible.

[0026] In the embodiment described above, the protective portion 101 protrudes from the side wall portion 104a to the right side of the vehicle, but it may also protrude to the left side of the vehicle. That is, the protective portion 101 protrudes from the side wall portion 104a in one direction in the left-right direction of the vehicle body. Furthermore, in the present invention, a protective portion 101 protruding in one direction in the left-right direction may also be formed on the side wall portion 104b. Furthermore, in the present invention, a protective portion 101 may also be formed in a direction forward of the groove portion 102.

[0027] In the present invention, multiple grooves 102 may be formed in the side wall portion 104a. Furthermore, in the present invention, grooves 102 may also be formed in the side wall portion 104b. [Explanation of Symbols]

[0028] 1. Vehicle body 10 brackets 20 High-voltage components 30 Wire Harnesses 40 connectors 50 pipes 101 Protection Department 102 Groove

Claims

1. The front-rear direction of the vehicle body and the front-rear direction of the high-voltage component coincide, and the high-voltage component, which has a connector on its rear surface to which a wire harness is connected, is fixed to the bottom portion which is fixed to the vehicle body, A metal side wall is provided in the left-right direction of the vehicle body, connected to the bottom, A metal protective part protruding from the upper end of the side wall in one direction in the left-right direction of the vehicle body at a position higher than the wire harness, A groove is provided extending downward from the upper end of the side wall and formed behind the connector, Equipped with, The space enclosed by the bottom and the side wall is open at the top. The protective part is a protective structure for high-voltage components that come into contact with the pipes that constitute the seats of the vehicle body when the pipes are bent.

2. The protective portion is formed on both the left-side and right-side walls of the vehicle body. The protection structure for high-voltage components according to claim 1.

3. Multiple grooves are formed in the side wall. The protection structure for high-voltage components according to claim 1.

4. The protective part is positioned below the seat. The protection structure for high-voltage components according to claim 1.

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