Dash panel

By designing a connected resin front bulkhead tube section and setting up anti-detachment parts and quick connectors, the problem of front bulkhead sealing was solved, achieving space utilization and simplified connection.

CN121929233APending Publication Date: 2026-04-28TOYOTA JIDOSHA KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2025-10-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the prior art, the through holes in the front bulkhead of a car need to be sealed to accommodate piping components, resulting in a waste of space around the front bulkhead.

Method used

Design a resin-made front bulkhead comprising a main body, a first tube extending outward to the exterior of the vehicle body, and a second tube extending inward to the interior of the vehicle body, the two being connected, and an anti-detachment part and a quick connector provided at the front end of the tubes to simplify hose connection.

Benefits of technology

It eliminates the need for sealing, utilizes the space around the front bulkhead, simplifies hose connections, and improves space utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention addresses the problem of providing a dash panel capable of utilizing a space around the dash panel. A pipe portion extends from the main body portion of the dash panel to the outside of the vehicle compartment, a pipe portion extends from the main body portion to the inside of the vehicle compartment, and the pipe portion communicates with the pipe portion.
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Description

Technical Field

[0001] This invention relates to a front bulkhead. Background Technology

[0002] Patent Document 1 discloses an invention related to the front structure of an automobile. In this front structure, a through hole is formed in the front bulkhead, through which piping components and the like are inserted.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2009-113568 Summary of the Invention

[0004] In the aforementioned prior art, it is necessary to seal the through holes through which piping components are inserted, and space is required around the front bulkhead for accommodating sealing materials. In other words, the aforementioned prior art has room for improvement in utilizing the space around the front bulkhead.

[0005] Considering the above facts, the present invention aims to provide a front bulkhead that can utilize the space around the front bulkhead.

[0006] The first embodiment involves a front bulkhead made of resin, the front bulkhead comprising: a main body portion that separates the vehicle interior from the vehicle exterior on the front side of the vehicle compartment; a first tube portion that extends from the main body portion toward the vehicle exterior; and a second tube portion that extends from the main body portion toward the vehicle interior and communicates with the first tube portion.

[0007] The first method involves a front bulkhead made of resin that separates the interior of the vehicle from the exterior of the vehicle through its main body at the front of the vehicle compartment.

[0008] In vehicles equipped with air conditioning units, piping components are sometimes installed from the exterior of the vehicle body through a through-hole in the front bulkhead to the interior. In such cases, the through-hole in the front bulkhead needs to be sealed, and space is required around the front bulkhead for installing sealing materials.

[0009] In this embodiment, a first pipe extends from the main body of the front bulkhead toward the exterior of the vehicle body, and a second pipe extends from the main body toward the interior of the vehicle body, with the first pipe and the second pipe communicating with each other.

[0010] Therefore, in this method, by connecting the piping components on the outside of the vehicle body to the first pipe section and the piping components on the inside of the vehicle body to the second pipe section, the outside of the vehicle body and the inside of the vehicle body can be connected, thus eliminating the need for sealing treatment of the front bulkhead along with the piping components.

[0011] The front panel of the second embodiment is provided with an anti-detachment part at the front end of at least one of the first tube and the second tube, and the anti-detachment part is annular when viewed from the periphery of the front end and from the extending direction of that tube.

[0012] According to the second embodiment, an anti-slip portion is provided at the front end of at least one of the first tube portion and the second tube portion provided in the main body. The anti-slip portion is provided along the periphery of the front end of the aforementioned portion and is annular when viewed from the extending direction of that portion.

[0013] Therefore, when the hose is connected to one of the aforementioned parts, by using a hose clamp or the like to secure the hose between the main body of the front bulkhead and the anti-detachment part, the hose can be prevented from easily detaching from the aforementioned part.

[0014] The front panel involved in the third method is the same as that involved in the first method, wherein a male plug of a quick connector is provided at the front end of at least one of the first tube and the second tube.

[0015] According to the front panel of the third embodiment, a male plug of a quick connector is provided at the front end of at least one of the first and second tube sections provided in the main body. Therefore, by providing a female plug of a quick connector at the end of the hose connected to the aforementioned one, the connection operation between the hose and the aforementioned one can be simplified.

[0016] Invention Effects

[0017] As explained above, the front bulkhead of the present invention has the excellent effect of utilizing the space around the front bulkhead. Attached Figure Description

[0018] Figure 1 This is an exploded perspective view schematically showing the structure of the front part of the vehicle body having the front bulkhead according to this embodiment.

[0019] Figure 2 This is a schematic front view showing the structure of the front panel involved in this embodiment.

[0020] Figure 3 This is a perspective view schematically showing the structure of the main parts of the front bulkhead involved in this embodiment. Figure 1 (3-directional view).

[0021] Figure 4 This is a schematic cross-sectional view showing the structure of the main part of the front panel according to this embodiment (showing along...). Figure 2 (A sectional view showing the state of being cut along line 4-4).

[0022] Figure 5This is a cross-sectional view showing the state when piping components are installed on the front bulkhead according to this embodiment. Detailed Implementation

[0023] The following uses Figures 1-5 An example of an embodiment of the front bulkhead according to the present invention will be described. First, using... Figure 1 The general structure of the vehicle body 12 equipped with the "front bulkhead 10" according to this embodiment will be described. Additionally, arrows FR (as appropriately shown in the figures) indicate the front side of the vehicle body, UP (upper side of the vehicle body), and RH (right side in the width direction of the vehicle body).

[0024] The vehicle body 12 includes a die-cast aluminum front component 14 that forms part of the front side of the vehicle body, a central component (not shown) that forms part of the front-rear center of the vehicle body and includes a battery and a battery frame for holding the battery, and a die-cast aluminum rear component (not shown) that forms part of the rear side of the vehicle body.

[0025] The front component 14 is configured to include a pair of side structural parts 16 and a connecting part 18 that connects the side structural parts 16 in the vehicle width direction.

[0026] The side structure 16 comprises a suspension tower 16A, a wheel arch 16B, and a side beam 16C. The suspension tower 16A is a box-shaped structure that opens to the lower side of the vehicle body and has a circular through-hole 18 formed on its upper surface, supporting a shock absorber (not shown).

[0027] The wheel arch portion 16B is integrally provided with the suspension tower portion 16A and is spherical in shape to accommodate a portion of a tire (not shown).

[0028] The side beam portion 16C is disposed on the lower side of the vehicle body of the suspension tower portion 16A, and is integrally formed with the suspension tower portion 16A and the wheel arch portion 16B. The side beam portion 16C extends in the longitudinal direction of the vehicle body, and when viewed from the front side of the vehicle body, its cross-sectional shape is a U-shape that opens outward in the width direction of the vehicle body.

[0029] On the other hand, the connecting portion 18 has its thickness direction set in the front-rear direction of the vehicle body and extends along the width direction of the vehicle body, and is configured to separate the "cabin 12A" and the power unit compartment 12B on the lower side of the vehicle body along the leading edge of the aforementioned central component. Furthermore, the peripheral portion on the upper side of the connecting portion 18 is recessed in a manner that protrudes towards the lower side of the vehicle body, and the "front bulkhead 10" is disposed in this portion.

[0030] The front bulkhead 10 is made of resin, such as Figure 2 and Figure 4 As shown, it is composed of a "main body 10A" that constitutes its main part, a plurality of "tube parts 10B" that serve as the first tube part, and a plurality of "tube parts 10C" that serve as the second tube part.

[0031] The main body 10A sets the front-to-back direction of the vehicle body as the plate thickness direction, and has an isosceles trapezoidal shape that widens from the lower side of the vehicle body to the upper side when viewed from the front-to-back direction of the vehicle body. The cab 12A and the power unit compartment 12B are separated on the upper side of the vehicle body at the connecting part 18.

[0032] like Figure 3 and Figure 4 As shown, the tube 10B is cylindrical and extends in the longitudinal direction of the vehicle, and extends outward from the front side of the vehicle side of the lower part of the main body 10A toward the cabin 12A.

[0033] Furthermore, a "slip-resistant part 10B1" is provided at the front end of the tube 10B, which is circular when viewed from the extending direction of the tube 10B along its periphery.

[0034] And, as Figure 5 As shown, a flexible hose 20 disposed on the outside of the compartment 12A is connected to the pipe section 10B. The flexible hose 20 is fastened to the pipe section 10B between the main body 10A and the anti-detachment part 10B1 by a hose clamp 22.

[0035] On the other hand, tube 10C has a structure that is substantially the same as tube 10B, and is connected to tube 10B. For example... Figure 4 As shown, the tube 10C is cylindrical and extends in the longitudinal direction of the vehicle, and extends from the rear side of the main body 10A toward the interior of the vehicle compartment 12A.

[0036] Furthermore, an "anti-detachment part 10C1" is provided at the front end of the tube 10C, which is circular when viewed from the extending direction of the tube 10C along its periphery.

[0037] And, as Figure 5 As shown, a male plug 26 of a "quick connector 24" is screwed onto the front end of the tube section 10C. A female plug 30 of the quick connector 24, located at the end of a flexible hose 28 disposed inside the vehicle compartment 12A, is connected to the male plug 26. Alternatively, the tube section 10C can be configured to directly connect to the female plug 30 by replacing the anti-detachment part 10C1 with a connecting part of the same shape as the male plug 26.

[0038] Furthermore, tube 10C can also be connected to a hose in the same way as tube 10B, and tube 10B can also be connected to a hose via quick connector 24 in the same way as tube 10C.

[0039] (The function and effects of this implementation method)

[0040] Next, the function and effects of this embodiment will be explained.

[0041] In this embodiment, such as Figure 1 As shown, the front bulkhead 10 is made of resin and, through its main body 10A, separates the interior of the vehicle compartment 12A from the exterior of the vehicle compartment 12A on the front side of the vehicle compartment 12A.

[0042] In vehicles equipped with air conditioning units, piping components are sometimes installed from the exterior of the vehicle body through a through-hole in the front bulkhead to the interior. In such cases, the through-hole in the front bulkhead needs to be sealed, and space is required around the front bulkhead for installing sealing materials.

[0043] In this embodiment, as Figure 4 and Figure 5 As shown, a pipe 10B extends from the main body 10A of the front bulkhead 10 to the outside of the vehicle compartment 12A, and a pipe 10C extends from the main body 10A to the inside of the vehicle compartment 12A, with the pipe 10B and the pipe 10C communicating with each other.

[0044] Therefore, in this embodiment, by connecting the flexible hose 20 on the outside of the vehicle compartment 12A to the pipe section 10B and the flexible hose 28 on the inside of the vehicle compartment 12A to the pipe section 10C, the outside of the vehicle compartment 12A can be connected to the inside of the vehicle compartment 12A, thereby eliminating the need for sealing treatment of the front bulkhead 10 along with the piping components.

[0045] Furthermore, in this embodiment, an anti-detachment portion 10B1 is provided at the front end of the tube portion 10B provided in the main body portion 10A. The anti-detachment portion 10B1 is provided along the periphery of the front end of the tube portion 10B and is annular when viewed from the extending direction of the tube portion 10B.

[0046] Therefore, when the hose 20 is connected to the tube section 10B, by using the hose clamp 22 to fasten the hose 20 between the main body 10A and the anti-detachment part 10B1 of the front panel 10, the hose 20 can be prevented from falling off the tube section 10B.

[0047] Furthermore, in this embodiment, a male plug 26 of a quick connector 24 is provided at the front end of the tube section 10C provided on the main body 10A. Therefore, by providing a female plug 30 of a quick connector 24 at the end of the flexible hose 28 connected to the tube section 10C, the connection operation between the flexible hose 28 and the tube section 10C can be simplified.

[0048] As explained above, the front bulkhead 10 involved in this embodiment can utilize the space around the front bulkhead 10.

[0049] Symbol Explanation

[0050] 10-Front bulkhead, 10A-Main body, 10B-Pipe section (first pipe section), 10B1-Anti-detachment section, 10C-Pipe section (second pipe section), 10C1-Anti-detachment section, 12A-Car compartment, 24-Quick connector, 26-Male plug.

Claims

1. A front bulkhead, characterized in that, It is made of resin. The front bulkhead has: The main body, located at the front of the vehicle compartment, separates the interior of the vehicle from the exterior of the vehicle. The first pipe portion extends from the main body portion toward the exterior side of the vehicle body; and The second pipe extends from the main body toward the interior of the vehicle and communicates with the first pipe.

2. The front bulkhead according to claim 1, characterized in that, An anti-detachment portion is provided at the front end of at least one of the first tube portion and the second tube portion, and the anti-detachment portion is annular when viewed from the periphery of the front end portion and from the extending direction of that portion.

3. The front bulkhead according to claim 1, characterized in that, A male plug of a quick connector is provided at the front end of at least one of the first tube section and the second tube section.

Citation Information

Patent Citations

  • Front part structure for automobile

    JP2009113568A