Vehicle-mounted equipment mounting structure

Abstract

To avoid a steep rise in manufacture cost by ensuring sealability between sealant and indoor piping when positioning outdoor piping on indoor piping of an on-vehicle device.SOLUTION: An on-vehicle device loading structure 100 includes: indoor piping 116 extending from HVAC 102 arranged at a passenger compartment 112 to a power unit loading room 110 through a panel hole 114 formed at a dash panel 108; an outdoor piping 120 connected with the front end of the indoor piping 116; and sealant 130. The sealant 130 includes: a panel abutment part 132 sealing between the panel hole 114 and the indoor piping 116; an indoor piping abutment hole 134 formed at the panel abutment part 132 and abutting onto the indoor piping 116; and an outdoor piping positioning part 136 projecting from the panel abutment part 132, continuously abutting onto the indoor piping 116, 118 against the indoor piping abutment hole 134 at an inner periphery surface 138 thereof and abutting on the indoor piping 120 at an end face 140 thereof.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a mounting structure for in-vehicle devices.

Background Art

[0002] In a passenger compartment partitioned from a power unit mounting room by a vehicle dashboard, an in-vehicle device such as an indoor unit (HVAC: Heating, Ventilation, and Air Conditioning) of an air conditioner is provided. The indoor unit houses a heater (such as a heat exchanger for heating) through which cooling water of a drive source (internal combustion engine or motor) circulates.

[0003] Indoor pipes for supplying and discharging refrigerant and cooling water of the drive source are connected to the heater. When the indoor unit is assembled to the vehicle, the indoor pipes extend through through-holes formed in the dashboard to the power unit mounting room, and outdoor pipes are connected to the tips thereof.

[0004] By forming the indoor pipes of metal pipes and the outdoor pipes of rubber hoses respectively, the sealing performance of the connection part between the indoor pipes and the outdoor pipes is enhanced, and it is suppressed that rainwater or the like intrudes into the pipes from the connection part. In addition, a fastening member for the rubber hose is provided separately at the connection part.

[0005] For example, according to Patent Document 1, a sealing material 17 is provided between the insertion hole of the dashboard 17 and the indoor pipes 12, 13, and the indoor pipes are inserted through the insertion hole 17a of the sealing material 17 to enhance the sealing performance in the vicinity of the insertion hole.

[0006] Furthermore, bulge processing is performed on the tip portions of the indoor pipes 12, 13 to form a tip-side annular portion 12a and a base-end-side annular portion 12b having a larger outer diameter dimension than this. While holding the outdoor pipes by the tip-side annular portion 12a, intrusion of the outdoor pipes into the indoor side when assembling the outdoor pipes to the indoor pipes is prevented by the base-end-side annular portion 12b, and the assembling property is enhanced.

Prior Art Documents

Patent Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2006-16860 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] By the way, as described in Patent Document 1, providing a base-end annular portion 12b for positioning the outdoor pipe in the indoor pipe requires bulging the indoor pipe, which increases manufacturing costs. Therefore, it is conceivable to position the outdoor pipe against the seal material 17 without providing a base-end annular portion 12b. However, since the seal material 17 is a flexible material, if the outdoor pipe is brought into contact with the seal material 17, the seal material 17 may undergo elastic deformation, potentially reducing the sealing performance (watertightness) between the seal material 17 and the indoor pipe.

[0009] In view of these problems, the present invention aims to provide an in-vehicle device mounting structure that prevents deformation of the sealing material when positioning the outdoor piping relative to the indoor piping of an in-vehicle device, thereby ensuring a seal between the sealing material and the indoor piping, and also avoids soaring manufacturing costs. [Means for solving the problem]

[0010] To solve the above problems, a typical configuration of the present invention is an on-board device mounting structure comprising: an on-board device positioned on the passenger compartment side of a dash panel that separates the vehicle's power unit mounting room from the passenger compartment; indoor piping extending from the on-board device to the power unit mounting room through a panel hole formed in the dash panel; outdoor piping connected to the end of the indoor piping in the power unit mounting room; and a sealing member that seals the space between the panel hole and the indoor piping. The sealing member is characterized by having a panel contact portion that abuts against the power unit mounting room side of the dash panel and seals the space between the panel hole and the indoor piping; an indoor piping contact hole formed in the panel contact portion and abuts against the indoor piping; and an annular member protruding from the panel contact portion towards the power unit mounting room, having an outdoor piping positioning portion that abuts against the indoor piping on its inner circumferential surface, continuous with the indoor piping contact hole, and abuts against the outdoor piping on its end surface. [Effects of the Invention]

[0011] According to the present invention, when positioning the outdoor piping relative to the indoor piping of an in-vehicle device, it is possible to provide an in-vehicle device mounting structure that prevents deformation of the sealing member, ensures sealing performance between the sealing member and the indoor piping, and avoids increased manufacturing costs. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view showing an embodiment of the in-vehicle device mounting structure according to the present invention. [Figure 2] Figure 1 is a side view of the vehicle-mounted device structure. [Figure 3] Figure 2(b) is a perspective view showing the indoor piping with the outdoor piping removed. [Figure 4] Figure 3 is a perspective view showing the sealing member as a standalone unit. [Figure 5] This is a cross-sectional view AA of the sealing member shown in Figure 3 or Figure 4(a). [Figure 6] This is a cross-sectional view AA corresponding to Figure 5, showing the outdoor piping positioned relative to the indoor piping, similar to Figure 2. [Figure 7]This figure shows modified examples of the forward projection and sealing member shown in Figure 5. [Modes for carrying out the invention]

[0013] One embodiment of the present invention provides an on-board device mounting structure comprising: an on-board device positioned on the passenger compartment side of a dash panel that partitions the vehicle's power unit mounting room from the passenger compartment; indoor piping extending from the on-board device to the power unit mounting room through a panel hole formed in the dash panel; outdoor piping connected to the end of the indoor piping in the power unit mounting room; and a sealing member that seals the space between the panel hole and the indoor piping. The sealing member is characterized by having a panel contact portion that abuts against the power unit mounting room side of the dash panel and seals the space between the panel hole and the indoor piping; an indoor piping contact hole formed in the panel contact portion and abuts against the indoor piping; and an annular member protruding from the panel contact portion towards the power unit mounting room, having an outdoor piping positioning portion that abuts against the indoor piping on its inner circumferential surface, continuous with the indoor piping contact hole, and abuts against the outdoor piping on its end surface.

[0014] According to the present invention, the outdoor pipe is positioned by bringing it into contact with an outdoor pipe positioning portion that protrudes from the panel contact portion of the sealing member. Since the outdoor pipe is not brought into direct contact with the panel contact portion, even though the outdoor pipe is positioned using a part of the sealing member called the outdoor pipe positioning portion, the panel contact portion that seals the space between the panel hole and the indoor pipe is less likely to deform, and the sealing performance between the sealing member and the indoor pipe can be ensured.

[0015] Furthermore, according to the present invention, since there is no need to form a positioning section for the outdoor piping on the indoor piping, an increase in manufacturing costs can be avoided. In particular, when the indoor piping is metal piping, there is no need to bulge the indoor piping, so a rise in manufacturing costs can be avoided.

[0016] The outdoor pipe positioning portion is preferably less elastic than the panel abutting portion. By reducing the elasticity of the outdoor pipe positioning portion that directly abuts on the outdoor pipe in this way, its elastic deformation can be suppressed, and the positioning accuracy of the outdoor pipe can be improved. In addition, it is possible to avoid a situation where the panel abutting portion is also elastically deformed due to the elastic deformation of the outdoor pipe positioning portion, resulting in a decrease in the sealing performance between the sealing member and the indoor pipe. On the other hand, by keeping the elasticity of the panel abutting portion higher than that of the outdoor pipe positioning portion, it is also ensured that it is easy to insert the indoor pipe into the indoor pipe abutting hole formed in the panel abutting portion.

[0017] The in-vehicle device is preferably an annular member surrounding the indoor pipe, having a front protruding portion that extends toward the panel hole and abuts near the indoor pipe abutting hole of the sealing member.

[0018] According to the above configuration, since the indoor pipe abutting hole and the outdoor pipe positioning portion are sandwiched between the outdoor pipe and the front protruding portion, the deformation of the indoor pipe abutting hole and the outdoor pipe positioning portion is more completely suppressed, and it is easy to maintain the sealing performance between the sealing member and the indoor pipe.

[0019] The front protruding portion is preferably inserted through the panel hole and abuts near the indoor pipe abutting hole of the sealing member in front of the rear end of the panel hole.

[0020] According to the above configuration, when positioning the outdoor pipe, the reaction force received from the front protruding portion can be applied to the indoor pipe abutting hole and the outdoor pipe positioning portion. Therefore, the elastic deformation of the indoor pipe abutting hole and the outdoor pipe positioning portion can be more completely suppressed, the positioning accuracy of the outdoor pipe can be improved, and the sealing performance between the sealing member and the indoor pipe can be enhanced.

[0021] Also, compared with the case where the indoor pipe abutting hole is located at the rear end of the panel hole, the front-rear dimension of the indoor pipe abutting hole and the outdoor pipe positioning portion can be reduced, and elastic deformation in which a part of the indoor pipe abutting hole is separated from the indoor pipe can be suppressed.

[0022] The sealing member further has a locking portion that extends rearward from the panel contact portion and engages with a panel hole in the dash panel, and it is preferable that the inner diameter of the locking portion be larger than the outer diameter of the front protrusion portion so that the locking portion is positioned at a predetermined distance from the front protrusion portion.

[0023] According to the above configuration, when positioning the outdoor piping, the reaction force received from the vicinity of the panel hole in the dash panel via the locking portion can be easily applied to the panel contact portion and the outdoor piping positioning portion, thereby making it easier to suppress deformation of the outdoor piping positioning portion.

[0024] Furthermore, because there is a gap between the forward protrusion and the locking portion, the forward protrusion can be easily inserted into the locking portion, making it easier to assemble the forward protrusion to the dash panel.

[0025] A flange may be formed at the tip of the forward projection, and the locking portion may be in close contact with the forward projection.

[0026] With this configuration, the locking portion, i.e., the sealing member, is assembled to the forward protrusion of the in-vehicle device, and then the sealing member can be passed through the panel hole from the passenger compartment side of the dash panel to the power unit mounting room side and locked into the panel hole. In other words, the sealing member and the forward protrusion of the in-vehicle device can be locked to the dash panel together, eliminating the need to lock them separately.

[0027] The outer surface of the tip of the indoor piping is formed with an annular projection, and the outdoor piping is preferably in contact with the end face of the outdoor piping positioning section at a position closer to the dash panel than the annular projection.

[0028] With the above configuration, the annular projection can be engaged with the outdoor piping, thereby preventing the connection between the indoor and outdoor piping from being disconnected. [Examples]

[0029] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. The dimensions, materials, and other specific numerical values ​​shown in these embodiments are merely illustrative to facilitate understanding of the invention and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals to avoid redundant explanations, and elements not directly related to the present invention are omitted from the illustrations.

[0030] (In-vehicle device mounting structure) Figure 1 is a perspective view showing an embodiment of the in-vehicle device mounting structure according to the present invention. Figure 1(a) is an overall perspective view of the in-vehicle device mounting structure 100, and Figure 1(b) is a partially enlarged view of Figure 1(a). In Figure 1 and all other drawings, the front-rear direction of the vehicle is indicated by arrows F (Forward) and B (Backward), the left and right directions in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the up-down direction of the vehicle is indicated by arrows U (Upward) and D (Downward).

[0031] As shown in Figure 1, the vehicle-mounted device structure 100 is a structure for mounting an HVAC 102, which is an indoor unit of an air conditioning system, into a vehicle. Details of the HVAC 102 are omitted from the illustration. The vehicle's power unit mounting room 110 and the passenger compartment 112 are separated by a dash panel 108, which is supported at both ends by two side panels 104 and 106. The HVAC 102 is located in the passenger compartment 112.

[0032] The power unit mounting room 110 is the power room where the vehicle's power source is located. This may be an engine room where a drive unit 126 having a drive unit (internal combustion engine) 124 as shown in Figure 2(a) is located, as in this embodiment, or it may be a motor room where an electric motor (not shown) is located.

[0033] (Indoor and outdoor piping) Figure 2 is a side view of the in-vehicle device mounting structure 100 shown in Figure 1. Figure 2(a) is a left side view of the in-vehicle device mounting structure 100, and Figure 2(b) is a partially enlarged view of Figure 2(a), in which the dash panel 108 of Figure 2(a) is omitted from the illustration. As shown in Figures 2(a) and 2(b), the in-vehicle device mounting structure 100 includes interior piping 116 and 118 that extends from the HVAC 102 in Figure 1 through a panel hole 114 (see Figure 6) formed in the dash panel 108 to the power unit mounting room 110.

[0034] As shown in Figures 2(a) and 2(b), the vehicle-mounted device structure 100 further includes outdoor pipes 120 and 122 connected to the ends of indoor pipes 116 and 118 in the power unit mounting room 110 by predetermined fastening members 117 and 119. In Figures 2(a) and 2(b), the outdoor pipes 120 and 122 are positioned in the correct location relative to the indoor pipes 116 and 118.

[0035] The outdoor pipes 120 and 122 are made of hoses formed from flexible rubber or the like, while the indoor pipes 116 and 118 are made of a more rigid material than the outdoor pipes 120 and 122, such as metal. Because the outdoor pipes 120 and 122 are made of hoses, they can be elastically deformed and connected to the indoor pipes 116 and 118. Therefore, a seal is maintained between the outdoor pipes 120 and 122 and the indoor pipes 116 and 118. Furthermore, the seal is further enhanced by fastening the outdoor pipes 120 and 122 to the indoor pipes 116 and 118 in a ring shape using fastening members 117 and 119.

[0036] In Figure 2(a), a cooling medium (refrigerant, such as cooling water or coolant) is supplied to the heat exchange section 128 of the drive unit 126 through a flow path consisting of indoor piping 116 and outdoor piping 120. On the other hand, the refrigerant is discharged from the heat exchange section 128 through a flow path consisting of indoor piping 118 and outdoor piping 122.

[0037] (Sealing material) Figure 3 is a perspective view showing the indoor piping 116 with the outdoor piping 120 removed from it, as shown in Figure 2(b). As shown in Figure 3, the vehicle-mounted device structure 100 further includes a sealing member 130 that seals the space between the panel hole 114 and the indoor piping 116 and 118. In this embodiment, the sealing member 130 is a flexible material made of ethylene propylene diene rubber (EPDM), but a resin material or the like may be used as long as it can ensure sealing (watertightness) to the outdoor piping 120 and 122.

[0038] Figure 4 is a perspective view showing the sealing member 130 of Figure 3 by itself, and Figures 4(b)(b) show the front and rear sides of the sealing member 130, respectively. The sealing member 130 has a panel contact portion 132 that abuts against the power unit mounting room 110 side of the dash panel 108 and seals the space between the panel hole 114 and the indoor piping 116 and 118.

[0039] (Panel contact portion of the sealing member) As shown in Figure 4, the edge 133 of the panel contact portion 132 is curved backward, and when the panel contact portion 132 comes into contact with the dash panel 108, it deforms and is pressed firmly against the dash panel 108, contributing to improved sealing performance.

[0040] As already mentioned, the flow path consisting of indoor piping 116 and outdoor piping 120 and the flow path consisting of indoor piping 118 and outdoor piping 122 serve different roles as a refrigerant supply path and a refrigerant discharge path, respectively, but their structures are similar. Therefore, unless otherwise specified, this embodiment will be described using only the former.

[0041] (Outdoor piping positioning part of the sealing member) As shown in Figure 4, the sealing member 130 further includes an indoor pipe contact hole 134 formed in the panel contact portion 132 that contacts the indoor pipe 116, and an annular member, the outdoor pipe positioning portion 136, that protrudes from the panel contact portion 132 toward the power unit mounting room 110. The outdoor pipe positioning portion 136 contacts the indoor pipe 116 with its inner circumferential surface 138, which is continuous with the indoor pipe contact hole 134, and contacts the outdoor pipe 120 with its end face 140. In other words, the outdoor pipe positioning portion 136 acts as a stopper for the outdoor pipe 120.

[0042] As described above, in this embodiment, the outdoor pipe 120 is positioned by bringing it into contact with the outdoor pipe positioning portion 136 that protrudes from the panel contact portion 132 of the sealing member 130. In other words, the outdoor pipe 120 is not brought into direct contact with the panel contact portion 132. Therefore, even though the outdoor pipe 120 is positioned using a part of the sealing member 130 called the outdoor pipe positioning portion 136, the panel contact portion 132 that seals the space between the panel hole 114 and the indoor pipe 116 is less likely to deform. Thus, the sealing performance between the sealing member 130 and the indoor pipe 116 can be ensured.

[0043] Furthermore, according to this embodiment, there is no need to bulge the indoor piping 116 to form a section for positioning the outdoor piping 120, thus avoiding increased manufacturing costs.

[0044] The outdoor piping positioning section 136 in Figure 4 has lower elasticity than the panel contact section 132. That is, it is less flexible and less prone to deformation. By lowering the elasticity of the outdoor piping positioning section 136, which is in direct contact with the outdoor piping 120, its elastic deformation is suppressed, thereby improving the positioning accuracy of the outdoor piping 120. Furthermore, it is possible to avoid a situation where the elastic deformation of the outdoor piping positioning section 136 causes the panel contact section 132 to also deform elastically, reducing the sealing performance between the sealing member 130 and the indoor piping 116. On the other hand, by keeping the elasticity of the panel contact section 132 higher than that of the outdoor piping positioning section 136, it is possible to ensure that the indoor piping 116 can be easily inserted into the indoor piping contact hole 134 formed in the panel contact section 132, which is another advantage.

[0045] Furthermore, the indoor piping contact hole 134 in Figure 4 may also have lower elasticity than the panel contact portion 132. Therefore, the relationship of the relative rigidity of each part constituting the sealing member 130 is as follows: (outdoor piping positioning portion ≤ indoor piping contact hole ≤ panel contact portion).

[0046] (Forward projection of HVAC) Figure 5 is a cross-sectional view AA of the sealing member in Figure 3 or Figure 4(a). Figure 5 also shows the HVAC 102 in Figure 1. As shown in Figure 5, the HVAC 102 is an annular member surrounding the indoor piping 116 and has a forward projection 142 that extends toward the panel hole 114 and abuts near the indoor piping contact hole 134 of the sealing member 130.

[0047] With the above configuration, the indoor pipe contact hole 134 and the outdoor pipe positioning portion 136 are sandwiched between the outdoor pipe 120 and the forward projection portion 142, so that deformation of the indoor pipe contact hole 134 and the outdoor pipe positioning portion 136 is more fully suppressed, and the sealing performance between the sealing member 130 and the indoor pipe 116 is more easily maintained.

[0048] In Figure 5, the dash panel 108 is not shown, but the rear end 144 of the panel hole 114 (see Figure 6) formed therein is indicated by a dashed line. As shown in Figure 5, the forward projection 142 is inserted through the panel hole 114 of the dash panel 108 and abuts in the vicinity of the indoor piping contact hole 134 of the sealing member 130 in front of the rear end 144 of the panel hole 114.

[0049] With the above configuration, the reaction force received from the forward projection 142 when positioning the outdoor pipe 120 can be applied to the indoor pipe contact hole 134 and the outdoor pipe positioning part 136. Therefore, the elastic deformation of the indoor pipe contact hole 134 and the outdoor pipe positioning part 136 can be further sufficiently suppressed, improving the positioning accuracy of the outdoor pipe 120 and improving the sealing performance between the sealing member 130 and the indoor pipe 116.

[0050] Furthermore, compared to the case where the indoor piping contact hole 134 is located at the rear end 144 of the panel hole 114, the front-to-back dimensions of the indoor piping contact hole 134 and the outdoor piping positioning portion 136 can be reduced, and elastic deformation that would cause a part of the indoor piping contact hole 134 to separate from the indoor piping 116 can be suppressed.

[0051] (The part of the sealing member that is locked) The sealing member 130 further has a locking portion 146 that extends rearward from the panel contact portion 132 and engages with the panel hole 114 of the dash panel 108. In Figure 5, the boundary between the panel contact portion 132 and the locking portion 146 is shown by a dashed line. Also in Figure 5, the boundary between the panel contact portion 132 and the outdoor piping positioning portion 136 is shown by a dashed line.

[0052] As shown in Figure 5, the locking portion 146 is positioned at a predetermined distance G from the forward projection 142. That is, the inner diameter dimension D1 of the locking portion 146 is larger than the outer diameter dimension D2 of the forward projection 142.

[0053] With the above configuration, when positioning the outdoor piping 120, the reaction force received from the inner periphery of the panel hole 114 of the dash panel 108 via the locking portion 146 can be easily applied to the panel contact portion 132 and the outdoor piping positioning portion 136. This makes it easier to suppress deformation of the outdoor piping positioning portion 136.

[0054] Furthermore, the forward projection 142 of the HVAC 102 does not necessarily have to extend forward to the vicinity (rear end) of the indoor piping contact hole 134 of the sealing member 130 shown in Figure 5, and may be separated from the sealing member 130. In that case, the rear end of the indoor piping contact hole 134 should be extended from the position shown in Figure 5 toward the rear end 144 of the panel hole 114 of the dash panel 108 so as to fill the front end of the space created by the gap G. This makes it easier to apply the reaction force received from the inner periphery of the panel hole 114 of the dash panel 108 via the locking portion 146 to the panel contact portion 132 and the outdoor piping positioning portion 136.

[0055] Furthermore, because there is a gap G between the forward projection 142 and the locking portion 146, the forward projection 142 is easily inserted into the inside of the locking portion 146, making it easy to assemble the forward projection 142 to the dash panel 108.

[0056] (Modified examples of the forward projection and sealing member) Figure 7 shows a modified example of the forward projection and sealing member shown in Figure 5. For convenience, elements similar to those in Figure 5 are indicated by the same reference numerals in Figure 7, and only the differences from Figure 5 will be explained. In the modified example of Figure 7, a flange 243 is formed at the tip of the forward projection 242 of the HVAC 102. The locking portion 246 is in close contact with the forward projection 242, unlike the locking portion 146 in Figure 5.

[0057] With this configuration, the locking portion 246, or sealing member 230, is assembled to the forward projection 242 of the HVAC 102, and then the sealing member 230 can be passed through the panel hole 114 from the passenger compartment 112 side of the dash panel 108 to the power unit mounting room 110 side and locked into the panel hole 114. In other words, the sealing member 230 and the forward projection 242 of the HVAC 102 can be locked to the dash panel 108 together, eliminating the need to lock them separately.

[0058] (Protrusions on indoor piping) Figure 6 is a cross-sectional view AA corresponding to Figure 5, showing the outdoor piping positioned relative to the indoor piping, similar to Figure 2. An annular projection 150 is formed on the outer circumferential surface of the tip of the indoor piping 116. This projection 150 is not as elaborate as those formed by bulging in conventional technology, which allow for the positioning of the outdoor piping. The outdoor piping 120 abuts against the end face 140 of the outdoor piping positioning section 136 at a position closer to the dash panel 108 than the annular projection 150.

[0059] With the above configuration, the annular projection 150 can be engaged with the outdoor piping 120, thereby preventing the connection between the indoor piping 116 and the outdoor piping 120 from being disconnected.

[0060] Preferred embodiments of the present invention have been described above with reference to the attached drawings, but it goes without saying that the present invention is not limited to these examples. It is clear to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention. [Industrial applicability]

[0061] This invention can be used in vehicle-mounted device structures. [Explanation of symbols]

[0062] 100...In-vehicle equipment mounting structure 102 …HVAC 104, 106... Side panels 108...Dash panel 110... Power unit installation room 112…Car interior 114 ... Panel holes 116, 118... Indoor piping 117, 119 ... Fastening members 120, 122…Outdoor piping 124 ... Drive unit 126 ... Drive unit 128...Heat exchange section 130, 230 ... sealing member 132 ... Panel contact area 134…Indoor piping contact hole 136 ... Outdoor piping positioning section 138 ...Inner surface of the outdoor piping positioning section 140 ... End face of the outdoor piping positioning section 142, 242...front protrusion 144 ... Rear end of panel hole 146, 246...Locked part 150…protrusion 243 ... Flange

Claims

1. Onboard equipment located on the passenger compartment side of the dashboard panel that separates the vehicle's power unit compartment from the passenger compartment, The interior piping extends from the in-vehicle device through a panel hole formed in the dashboard panel to the power unit mounting room, In the power unit mounting room, the outdoor piping is connected to the end of the indoor piping, In an in-vehicle device mounting structure comprising a sealing member that seals the space between the panel hole and the indoor piping, The sealing member is A panel contact portion that abuts against the power unit mounting room side of the dash panel and seals the space between the panel hole and the interior piping, An indoor pipe contact hole formed in the panel contact portion and in contact with the indoor pipe, An in-vehicle device mounting structure characterized by having an annular member protruding from the panel contact portion toward the power unit mounting room, wherein the annular member has an outer pipe positioning portion that abuts the indoor pipe in a continuous manner with the indoor pipe contact hole on its inner circumferential surface and abuts the outdoor pipe on its end surface.

2. The vehicle-mounted device structure according to claim 1, characterized in that the outdoor piping positioning portion has lower elasticity than the panel contact portion.

3. The in-vehicle device mounting structure according to claim 1 or 2 is characterized in that the in-vehicle device is an annular member surrounding the outer surface of the interior piping and has a forward projection that extends toward the panel hole and abuts in the vicinity of the interior piping contact hole of the sealing member.

4. The vehicle-mounted device structure according to claim 3, characterized in that the forward projection is inserted through the panel hole and abuts in the vicinity of the indoor piping contact hole of the sealing member in front of the rear end of the panel hole.

5. The sealing member further has a locking portion that extends rearward from the panel contact portion and engages with the panel hole of the dash panel, The vehicle-mounted device structure according to claim 3, characterized in that the inner diameter of the locking portion is larger than the outer diameter of the forward projection so that the locking portion is positioned at a predetermined distance from the forward projection.

6. The sealing member further has a locking portion that extends rearward from the panel contact portion and engages with the panel hole of the dash panel, A flange is formed at the tip of the aforementioned forward projection. The vehicle-mounted device structure according to claim 3, characterized in that the locking portion is in close contact with the forward protruding portion.

7. An annular projection is formed on the outer surface of the tip of the aforementioned indoor piping. The vehicle-mounted device structure according to claim 1, characterized in that the outdoor piping abuts against the end face of the outdoor piping positioning portion at a position closer to the dash panel than the annular projection.

Images