Attachment structure of air conditioner to vehicle body

The air conditioner mounting structure simplifies the mounting configuration by embedding pipes within the air conditioner main body and using resin materials, reducing complexity and enhancing insulation and vibration damping.

JP2025178881APending Publication Date: 2025-12-09TOYOTA JIDOSHA KK
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Patent Information

Application Number
JP2024085737
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-12-09

AI Technical Summary

Technical Problem

Existing air conditioner mounting structures for vehicles are complicated due to the need for separate openings for outside air intake and refrigerant/coolant piping, which complicates the mounting structure and existing technologies.

Method used

A mounting structure for air conditioners that embeds the pipes within the air conditioner main body, allowing the pipes to be routed between the interior and exterior of the vehicle without additional through-holes in the dash panel, and uses resin materials for the dash panel and pipes to simplify and insulate the structure.

Benefits of technology

The structure simplifies the mounting configuration by eliminating the need for additional through-holes in the dash panel and provides effective vibration damping and insulation.

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Abstract

To obtain an attachment structure of an air conditioner to a vehicle body which can inhibit complication of a structure of an attachment portion attached to a dash panel.SOLUTION: A vehicle to which an attachment structure of an air conditioner attached to a vehicle body is applied includes: a dash panel 18; an air conditioner main part 12; and a plurality of pipes. The dash panel 18 separates a passenger compartment interior 20 from a vehicle front space with respect to the passenger compartment interior 20. The dash panel 18 has a through hole 24 penetrating through the dash panel in a vehicle front-back direction. The air conditioner main part 12 is fixed to the dash panel 18, inserted into the through hole 24 and has an air passage hole 32 in which air passes between the passenger compartment interior 20 and a passenger compartment exterior 22. The pipes (a first pipe 14 and a second pipe 16) are buried in the air conditioner main part 12 and arranged between the passenger compartment interior 20 and the vehicle front space with respect to the passenger compartment interior.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a mounting structure for an air conditioner to a vehicle body. [Background technology]

[0002] Patent Document 1 below discloses a mounting structure for an air conditioner for an automobile. The dash panel of the automobile described in this document has an opening formed therein, and the fresh air intake of the air conditioner is connected to this opening so as to be in communication with the opening. A joint duct is interposed between the opening in the dash panel and the fresh air intake of the air conditioner, and this joint duct has a mounting hole for the dash panel and a mounting hole for the fresh air intake. With this configuration, even if the connecting surface of the dash panel that connects the fresh air intake of the air conditioner has a different shape for each vehicle model, using a different joint duct for each vehicle model makes it possible to standardize the air conditioner for each vehicle model. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-045993 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the configuration described in Patent Document 1, in addition to the opening through which the outside air intake portion that constitutes part of the air conditioner communicates, it is necessary to provide a separate opening through which piping that constitutes other parts of the air conditioner (piping through which a refrigerant flows, piping through which a coolant flows, etc.) passes. Therefore, the configuration described in Patent Document 1 has room for improvement in terms of preventing the configuration of the air conditioner (air conditioning device) from becoming too complicated.

[0005] SUMMARY OF THE INVENTION In consideration of the above, an object of the present invention is to provide a mounting structure for an air conditioner to a vehicle body that can prevent the configuration of the mounting portion to the dash panel from becoming complicated. [Means for solving the problem]

[0006] The mounting structure of an air conditioner to a vehicle body of a first aspect includes a dash panel that separates the interior of the vehicle from the exterior of the vehicle forward of the interior of the vehicle and has a through hole formed therethrough in the fore-and-aft direction of the vehicle, an air conditioner main body that is inserted into the through hole and fixed to the dash panel and has air passage holes through which air passes between the interior and exterior of the vehicle, and a plurality of pipes that are embedded in the air conditioner main body and routed between the interior and exterior of the vehicle.

[0007] In the first aspect of the vehicle body mounting structure for an air conditioner, multiple pipes are embedded within the air conditioner main body. With this configuration, the air conditioner main body is inserted into a through-hole formed in the dash panel and mounted to the dash panel, allowing the multiple pipes to be routed between the interior and exterior of the vehicle. In this way, the first aspect of the vehicle body mounting structure for an air conditioner eliminates the need to provide through-holes in the dash panel through which the multiple pipes pass. This prevents the mounting configuration of the air conditioner main body and the multiple pipes to the dash panel from becoming too complicated.

[0008] The second aspect of the mounting structure for an air conditioner to a vehicle body is the same as the first aspect of the mounting structure for an air conditioner to a vehicle body, except that the portion of the air conditioner main body where at least a plurality of the pipes are embedded is formed using a resin material.

[0009] In the second aspect of the structure for mounting an air conditioner to a vehicle body, at least the portion of the air conditioner body where the plurality of pipes are embedded is formed using a resin material. With this configuration, the air conditioner body can keep the plurality of pipes warm.

[0010] The mounting structure for an air conditioner to a vehicle body of a third aspect is the same as the mounting structure for an air conditioner to a vehicle body of the first or second aspect, in which the dash panel is formed using a resin material.

[0011] In the third aspect of the vehicle body mounting structure for an air conditioner, the dash panel is made of a resin material, which allows the vibration of the air conditioner body to be damped more effectively than in a structure in which the dash panel is made of a metal material. [Effects of the Invention]

[0012] The mounting structure for an air conditioner to a vehicle body according to the present invention has the excellent effect of preventing the configuration of the mounting portion to the dash panel from becoming complicated. [Brief explanation of the drawings]

[0013] [Figure 1] 4 is a cross-sectional view showing a cross section of a dash panel, taken along the vertical and longitudinal directions, of a portion where an air conditioning device main body is attached. FIG. [Figure 2] FIG. 2 is a cross-sectional view showing a cross section taken along line 2-2 shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, a mounting structure of an air conditioner to a vehicle body according to an embodiment of the present invention will be described with reference to the drawings. Note that, as shown appropriately in each drawing, the arrow FR indicates the front side of the vehicle, the arrow UP indicates the upper side of the vehicle, the arrow LH indicates the left side in the vehicle width direction (left-right direction), and the arrow RH indicates the right side in the vehicle width direction (left-right direction). Furthermore, in the following description, when the front-rear, up-down, and left-right directions are indicated, they refer to the front-rear in the front-rear direction of the vehicle, the up-down in the vehicle up-down direction, and the left-right in the vehicle left-right direction unless otherwise specified.

[0015] As shown in FIG. 1, the mounting structure of the air conditioner 10 of this embodiment is applied to an air conditioner main body 12 and various pipes (first pipe 14, second pipe 16) that constitute part of the air conditioner 10, as well as a dash panel 18 to which the air conditioner main body 12 is mounted.

[0016] 1 and 2, dash panel 18 is made of a resin material and extends in the left-right and up-down directions with the vehicle's front-to-rear direction as its thickness direction. This dash panel 18 separates a vehicle interior 20 from a vehicle exterior 22 located forward of the vehicle interior 20 in the front-to-rear direction. Furthermore, dash panel 18 is formed with a through-hole 24 that penetrates dash panel 18 in the front-to-rear direction. The edge of this through-hole 24 has a rectangular shape when viewed from the front-to-rear direction.

[0017] As shown in Figure 1, the air conditioning unit main body 12 is mostly formed using a resin material and includes an interior portion 26 arranged inside the vehicle interior 20, an exterior portion 28 arranged outside the vehicle interior 22, and a connection portion 30 connecting the interior portion 26 and the exterior portion 28.

[0018] The interior compartment portion 26 is formed in a box shape, and a blower motor, various heat exchangers, etc. are provided inside the interior compartment portion 26. The space inside the interior compartment portion 26 is also connected to an intake port and an outlet port (not shown) provided inside the vehicle interior 20.

[0019] The exterior compartment portion 28 is formed in a box shape, and the space inside this exterior compartment portion 28 is connected to an intake port (not shown) provided on the exterior 22 of the vehicle compartment.

[0020] 1 and 2, the connection portion 30 is formed in the shape of a rectangular block, for example. The connection portion 30 is formed with a through hole 32 that connects the space within the interior portion 26 and the space within the exterior portion 28 in the front-rear direction. This allows air taken into the exterior portion 28 to flow toward the inside of the interior portion 26 through the through hole 32.

[0021] A pair of first pipes 14 are embedded inside the connection portion 30 and above one side of the through hole 32 in the vehicle width direction. A coolant flows inside the pair of first pipes 14. One end of the pair of first pipes 14 is connected to a heat exchanger (heater core) provided in the vehicle interior arrangement portion 26.

[0022] A pair of second pipes 16 are embedded as piping inside the connection portion 30 and below the passage hole 32 on one side in the vehicle width direction. A refrigerant flows inside the pair of second pipes 16. One end of the pair of second pipes 16 is connected to a heat exchanger (evaporator) provided in the vehicle interior arrangement portion 26.

[0023] The air conditioner main body 12 described above is fixed to the dash panel 18 with the connection portion 30 inserted into the through-hole 24 formed in the dash panel 18.

[0024] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0025] In the air conditioner 10 of the present embodiment described above, for example, when the air conditioner is in an internal air circulation mode in which air is circulated in the vehicle interior 20, air is taken into the vehicle interior portion 26 of the air conditioner main body 12 from an intake port provided in the vehicle interior 20. The air taken into the vehicle interior portion 26 is subjected to temperature and humidity adjustment by passing through a heat exchanger, and then blown out from an outlet provided in the vehicle interior 20.

[0026] In addition, in an outside air introduction mode in which air from outside the vehicle compartment 22 is introduced into the vehicle interior 20, for example, air is taken into the exterior portion 28 of the air conditioning device main body 12 from an intake port provided on the exterior portion 22. The air taken into the exterior portion 28 is taken into the interior portion 26 through the passage holes 32. The air taken into the interior portion 26 then passes through a heat exchanger to be temperature- and humidity-controlled, and is then blown out from an outlet provided in the vehicle interior 20.

[0027] In the air conditioner 10 of this embodiment, multiple pipes (first pipe 14, second pipe 16) are embedded in the air conditioner main body 12. In this configuration, the connection portion 30 of the air conditioner main body 12 is inserted into a through-hole 24 formed in the dash panel 18, and the air conditioner main body 12 is attached to the dash panel 18, allowing the multiple pipes (first pipe 14, second pipe 16) to be routed between the vehicle interior 20 and the vehicle exterior 22. In this manner, the mounting structure of the air conditioner 10 does not require the dash panel 18 to have through-holes through which the multiple pipes (first pipe 14, second pipe 16) pass. This prevents the configuration of the portion where the air conditioner main body 12 and the multiple pipes (first pipe 14, second pipe 16) are attached to the dash panel 18 from becoming complicated.

[0028] In this embodiment, most of the air conditioner body 12 is made of a resin material. In particular, the portion of the air conditioner body 12 where multiple pipes (first pipe 14, second pipe 16) are embedded is made of a resin material. In this configuration, the air conditioner body 12 can keep the multiple pipes (first pipe 14, second pipe 16) warm.

[0029] In this embodiment, the dash panel 18 is made of a resin material. In this configuration, the dash panel 18 can attenuate vibrations of the air conditioner main body 12 more effectively than in a configuration in which the dash panel 18 is made of a metal material.

[0030] In the above-described embodiment, the dash panel 18 is formed using a resin material, but the present invention is not limited to this. For example, the dash panel 18 may be formed using a steel plate or an aluminum alloy.

[0031] In addition, in the present embodiment, an example has been described in which the portion of the air conditioning device main body 12 in which the multiple pipes (first pipe 14, second pipe 16) are buried is formed using a resin material, but the present invention is not limited to this. For example, the air conditioning device main body 12 may be configured such that a heat insulating material is provided in the portion in which the multiple pipes (first pipe 14, second pipe 16) are buried.

[0032] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0033] 10 Air conditioner 12 Air conditioning unit main body 14 First piping (piping) 16 Second piping (piping) 18 Dash Panel 20 Inside the vehicle 22 Outside the vehicle 24 through holes 32 Air passage hole

Claims

1. a dash panel that separates the interior of the vehicle from the exterior of the vehicle forward of the interior of the vehicle and has a through hole formed therein that penetrates in the front-rear direction of the vehicle; an air conditioning device main body that is inserted into the through hole and fixed to the dash panel, the air conditioning device main body having an air passage hole through which air passes between the interior and exterior of the vehicle; a plurality of pipes embedded in the air conditioning device main body and routed between the interior and exterior of the vehicle; A mounting structure for an air conditioning unit on a vehicle body.

2. 2. The structure for mounting an air conditioner to a vehicle body according to claim 1, wherein at least a portion of the air conditioner body where the plurality of pipes are embedded is made of a resin material.

3. 3. The structure for mounting an air conditioning unit to a vehicle body according to claim 1, wherein the dash panel is made of a resin material.

Citation Information

Patent Citations

  • Mounting structure of air conditioner of automobile

    JP2012045993A