Vehicle-mounted electronic apparatus

Abstract

Provided is a vehicle-mounted electric apparatus in which the performance of a seal between the outside of a housing and the inside of the housing is excellent, and which can exhibit excellent durability.　The vehicle-mounted electric apparatus according to the present invention comprises a housing 1 and a sealing member 41. The housing 1 has a housing seal surface 74. A sealing member contact layer 42a and a conforming layer 42b are provided between the sealing member 41 and the housing seal surface 74. The sealing member contact layer 42a is in contact with the sealing member. The conforming layer 42b is attached or adhered to the housing seal surface 74, and is deformed so as to conform to the uneven shape of the housing seal surface 74. The seal length between the conforming layer 42b and the housing seal surface 74 is longer than the seal length between the sealing member 41 and the sealing member contact layer 42a.

Description

Vehicle-mounted electrical equipment

[0001] The present invention relates to a vehicle-mounted electrical equipment.

[0002] A conventional vehicle-mounted electrical equipment is disclosed in Patent Document 1. This vehicle-mounted electrical equipment includes a housing, a sealing member, and a connector portion. In this document, the vehicle-mounted electrical equipment is specifically an electric compressor.

[0003] The housing is made of metal. The housing has a housing sealing surface that seals together with the sealing member. The connector portion is attached to the housing from outside the housing.

[0004] In this vehicle-mounted electrical equipment, the sealing member is located between the housing sealing surface and the connector portion, and abuts against both the housing sealing surface and the connector portion. Thus, in this vehicle-mounted electrical equipment, the sealing member seals between the interior and the exterior of the housing. In this way, this vehicle-mounted electrical equipment prevents water and the like from entering the interior of the housing from the outside of the housing.

[0005] China Utility Model No. 218882463

[0006] Incidentally, metal housings are generally formed by casting or the like, and the surface of the housing including the housing sealing surface is a rough surface having uneven casting projections and casting depressions. Therefore, although it is common practice to polish the housing sealing surface to minimize the casting projections and casting depressions present on the surface of the housing sealing surface as much as possible, fine uneven post-polishing projections and post-polishing depressions inevitably remain on the housing sealing surface after polishing. That is, sealing surface depressions such as casting depressions and post-polishing depressions exist on the housing sealing surface.

[0007] For this reason, in the above-mentioned conventional vehicle-mounted electrical equipment, when the sealing member abuts against the housing sealing surface, a fine space is easily formed between the sealing member and the sealing surface depressions present on the housing sealing surface.

[0008] Therefore, in this in-vehicle electrical equipment, even if a sealing member is provided, there is a risk that water or liquid chemicals such as de-icing agents may flow from outside the housing between the sealing member and the recess in the sealing surface, potentially reaching the inside of the housing.

[0009] Furthermore, in this automotive electrical equipment, water and liquid chemicals tend to accumulate in the space formed between the sealing member and the recess of the sealing surface. As a result, corrosion of the housing progresses due to this accumulated water and liquid chemicals. Consequently, the durability of this automotive electrical equipment is also a concern. In particular, since de-icing agents contain salts such as sodium chloride, if the de-icing agent accumulates in the space between the sealing member and the recess of the sealing surface, corrosion of the housing progresses more rapidly, making the above-mentioned problem even more pronounced.

[0010] This invention has been made in view of the above-mentioned conventional circumstances, and aims to solve the problem of providing an in-vehicle electrical device that has excellent sealing performance between the outside and inside of the housing and can exhibit high durability.

[0011] The in-vehicle electrical device of the present invention comprises a metal housing and a sealing member that seals the inside and outside of the housing, wherein the housing has a housing sealing surface that seals together with the sealing member, and between the sealing member and the housing sealing surface, there is a sealing member contact layer that abuts against the sealing member and a conforming layer that adheres or is attached to the housing sealing surface and deforms to conform to the uneven surface of the housing sealing surface, the sealing member contact layer and the conforming layer are integrally formed, the inside and outside of the housing are sealed by the contact between the sealing member and the sealing member contact layer and the conforming layer adhering or being attached to the housing sealing surface, and the sealing length between the conforming layer and the housing sealing surface is longer than the sealing length between the sealing member and the sealing member contact layer.

[0012] In the automotive electrical equipment of the present invention, a surface roughness mitigating member is provided between the sealing member and the housing sealing surface. This surface roughness mitigating member has a sealing member contact layer and a conforming layer.

[0013] The sealing member contact layer contacts the sealing member. On the other hand, the conforming layer is integral with the sealing member contact layer and is adhered or bonded to the housing seal surface, and deforms to conform to the uneven surface of the housing seal surface. In this way, in this automotive electrical device, the inside and outside of the housing are sealed by the contact between the sealing member and the sealing member contact layer, and by the adhesion or bonding of the conforming layer to the housing seal surface.

[0014] Furthermore, since the conforming layer is adhered to or attached to the housing sealing surface, a suitable seal can be achieved between the conforming layer and the housing sealing surface. The seal length between the conforming layer and the housing sealing surface is longer than the seal length between the sealing member and the sealing member contact layer. As a result, in this automotive electrical device, water and liquid chemicals are less likely to penetrate between the conforming layer and the housing sealing surface. In this way, this automotive electrical device can effectively prevent water and liquid chemicals from reaching the inside of the housing.

[0015] Furthermore, the conforming layer deforms to conform to the uneven surface of the housing seal. As a result, even if recesses in the seal surface are unavoidable in this automotive electrical equipment, it is difficult for a space to form between the conforming layer and the recesses in the seal surface where water or liquid chemicals can accumulate. Therefore, this compressor can effectively suppress corrosion of the housing caused by water or liquid chemicals.

[0016] Therefore, the in-vehicle electrical equipment of the present invention exhibits excellent sealing performance between the outside and inside of the housing, as well as high durability.

[0017] The housing seal surface has a first surface roughness, and the sealing member contact layer may have a second surface roughness smaller than the first surface roughness. Since the housing seal surface may inevitably have seal surface recesses caused by casting or polishing, the sealing member contact layer will be smoother than the housing seal surface if it has a second surface roughness. For this reason, in the case of automotive electrical equipment, when the sealing member and the sealing member contact layer are in contact, it is difficult for water or liquid chemicals to penetrate between the sealing member and the sealing member contact layer.

[0018] The sealing member contact layer and the conforming layer may constitute a surface roughness mitigating member that reduces the surface roughness of the housing seal surface. The housing may have a through hole that connects the inside and outside of the housing. A connector portion fixed to the housing may be inserted into the through hole. The connector portion may have a connector seal surface located on the opposite side of the surface roughness mitigating member, with the sealing member in between. The connector seal surface, sealing member, surface roughness mitigating member, and housing seal surface may be arranged in that order. Preferably, the inside and outside of the housing, which are connected by the through hole, are sealed by the connector seal surface and the sealing member contact layer, and the conforming layer being adhered or bonded to the housing seal surface.

[0019] In this case, it is possible to effectively prevent water or liquid chemicals from flowing into the housing from the outside through the through-hole.

[0020] The connector portion may have a fastening portion that is fastened to the housing by a fastening member outside the connector sealing surface. Preferably, when the connector portion is fastened to the housing, the conforming layer deforms to conform to the housing in an uneven manner.

[0021] In this case, the conforming layer can be suitably deformed to conform to the uneven surface of the housing seal, making it more difficult for water or liquid chemicals to penetrate between the conforming layer and the housing seal. Furthermore, in this automotive electrical equipment, it becomes more difficult for a space to form between the conforming layer and the housing seal where water or liquid chemicals can accumulate.

[0022] The connector portion may have a fastening portion that is fastened to the housing seal surface by a fastening member outside the connector seal surface. The fastening portion may be provided with a collar through which the fastening member is inserted. The surface roughness mitigating member may have a collar contact layer positioned between the housing seal surface and the collar and in contact with the collar, and a collar conforming layer that adheres or sticks to the housing seal surface and deforms to conform to the uneven surface. The collar contact layer may have a second surface roughness. The collar contact layer and the color conforming layer may be formed integrally. Furthermore, it is preferable that the inside and outside of the housing, which communicate through the through hole, are sealed by the collar abutting against the collar contact layer and the color conforming layer adhering or sticking to the housing seal surface.

[0023] In this case, it is possible to effectively prevent water or liquid chemicals from flowing into the housing from the outside through the through-hole. Furthermore, in this automotive electrical equipment, the collar contact layer comes into contact with the collar, which also effectively prevents water or liquid chemicals from flowing between them. In addition, because the collar conforming layer deforms to conform to the uneven surface of the housing seal, it is difficult for a space to form between the collar conforming layer and the housing seal surface in which water or liquid chemicals can accumulate. For this reason, this compressor can more effectively suppress corrosion of the housing caused by water or liquid chemicals.

[0024] The sealing member contact layer and the color contact layer are preferably made of a resin film. In this case, the sealing member contact layer and the color contact layer can be easily formed.

[0025] The sealing member and the surface roughness mitigating member may be formed in an annular shape surrounding the through hole. The connector portion may be provided with a sealing member and an annular receiving groove that opens toward the surface roughness mitigating member. Preferably, the sealing member contact layer is formed to be wider than the receiving groove and cover the receiving groove.

[0026] In this case, a suitable seal length can be secured between the sealing member and the sealing member contact layer, making it more effective to prevent water or liquid chemicals from entering between the sealing member and the sealing member contact layer.

[0027] The automotive electrical equipment of the present invention exhibits excellent sealing performance between the outside and inside of the housing, as well as high durability.

[0028] Figure 1 is a cross-sectional view of the in-vehicle electrical equipment of Example 1. Figure 2 is an enlarged cross-sectional view of the main parts of the in-vehicle electrical equipment of Example 1, showing the sealing member and surface roughness mitigating member, etc. Figure 3 is a perspective view of the sealing member of the in-vehicle electrical equipment of Example 1. Figure 4 is a perspective view of the surface roughness mitigating member of the in-vehicle electrical equipment of Example 1. Figure 5 is an enlarged cross-sectional view of the main parts of the X1 portion in Figure 2 of the in-vehicle electrical equipment of Example 1. Figure 6 is an enlarged cross-sectional view of the main parts of the in-vehicle electrical equipment of Example 2, similar to Figure 2, showing the sealing member and surface roughness mitigating member, etc. Figure 7 is a cross-sectional view of the surface roughness mitigating member of the in-vehicle electrical equipment of Example 2. Figure 8 is an enlarged cross-sectional view of the main parts of the in-vehicle electrical equipment of a comparative example, similar to Figure 5.

[0029] The present invention will now be described in detail in two embodiments, 1 and 2, with reference to the drawings. The electric compressors in embodiments 1 and 2 are examples of the "vehicle-mounted electrical equipment" of the present invention. More specifically, the compressors in embodiments 1 and 2 are electric scroll compressors. These electric compressors are mounted in a vehicle (not shown) and constitute the refrigeration circuit of a vehicle air conditioning system.

[0030] (Example 1) As shown in Figure 1, the electric compressor of Example 1 comprises a housing 1, an electric mechanism 3, a compression mechanism 5, an inverter 9, a case-side connector 15, and a sealing member 41. The case-side connector 15 is an example of a "connector part" in the present invention. The housing 1 has a first housing 11, a second housing 13, and an inverter case 7.

[0031] In this embodiment, the front-rear direction of the electric compressor is defined as the side where the second housing 13 is located being the front side of the electric compressor, and the side where the inverter case 7 is located being the rear side of the electric compressor. Furthermore, the up-down direction of the electric compressor is defined as the top of the paper in Figure 1 being the top of the electric compressor, and the bottom of the paper in Figure 1 being the bottom of the electric compressor. Then, in Figures 2 and onward, the front-rear and up-down directions of the electric compressor are defined in correspondence with Figure 1. Note that the orientation of the electric compressor is appropriately changed according to the vehicle on which it is mounted.

[0032] The first housing 11 shown in Figure 1 is made of aluminum alloy. The first housing 11 has a first bottom wall 11a extending radially to the electric compressor and a first side wall 11b that is continuous with the first bottom wall 11a and extends forward in the axial direction of the electric compressor from the first bottom wall 11a. Due to these first bottom wall 11a and first side wall 11b, the first housing 11 has a bottomed, substantially cylindrical shape with an open front side. An intake port (not shown) is provided in the first side wall 11b.

[0033] The second housing 13 is also made of aluminum alloy. The second housing 13 has a second bottom wall 13a that extends radially to the electric compressor, and a second side wall 13b that is continuous with the second bottom wall 13a and extends rearward from the second bottom wall 13a in the axial direction of the electric compressor. Due to these second bottom wall 13a and second side wall 13b, the second housing 13 has a bottomed, substantially cylindrical shape with an open rear side. A discharge port (not shown) is formed in the second bottom wall 13a.

[0034] The second housing 13 is fixed to the front end of the first housing 11 by a plurality of bolts 14. This integrates the first housing 11 and the second housing 13. Note that the first and second housings 11 and 13 may be made of materials other than aluminum alloy.

[0035] The electric motor mechanism 3 is housed within the first housing 11. The electric motor mechanism 3 includes a stator 17, a rotor 19, a drive shaft 21, and a connecting part (not shown). The stator 17 is fixed to the inner circumferential surface of the first side wall 11b and has a coil (not shown). The rotor 19 is positioned inside the stator 17. The drive shaft 21 is fixed to the rotor 19 and rotates integrally with the rotor 19.

[0036] The compression mechanism 5 is housed in the first housing 11, on the front side of the electric mechanism 3. The compression mechanism 5 employs a known scroll-type compression mechanism and has a fixed scroll fixed to the inner circumferential surface of the first side wall 11b and a movable scroll positioned opposite the fixed scroll. The movable scroll is power-transmitted to the drive shaft 21 and is rotatable by the drive shaft 21. The fixed scroll and the movable scroll mesh together to form a compression chamber between them. A discharge chamber is also formed between the fixed scroll and the second housing 13. Note that the fixed scroll, movable scroll, compression chamber, and discharge chamber are not shown in the illustration.

[0037] The inverter case 7 is made of aluminum alloy. Therefore, the housing 1, including the inverter case 7, is made of metal. The inverter case 7 has a third bottom wall 7a extending radially from the electric compressor, and a third side wall 7b that is continuous with the third bottom wall 7a and extends forward axially from the third bottom wall 7a. These third bottom wall 7a and third side wall 7b give the inverter case 7 a substantially cylindrical shape with a closed bottom and an open front. The inverter case 7 may be made of a metal other than aluminum alloy.

[0038] The inverter case 7 is fixed to the rear end of the first housing 11 by bolts (not shown), with the front end of the third side wall 7b in contact with the first bottom wall 11a. In this way, an inverter chamber 70 is formed inside the inverter case 7. The third bottom wall 7a and the third side wall 7b separate the inside of the inverter case 7, i.e., the inverter chamber 70, from the outside of the inverter case 7. The inverter chamber 70 is further separated from the inside of the first housing 11 by the first bottom wall 11a.

[0039] The inverter case 7 is formed by casting. As a result, the third bottom wall 7a and the third side wall 7b are integrally formed in the inverter case 7. The third bottom wall 7a is composed of a bottom wall main body 71 and a mounting portion 73. The mounting portion 73 is integral with the bottom wall main body 71 and protrudes rearward from the bottom wall main body 71.

[0040] As shown in Figure 2, the mounting portion 73 has a first opposing surface 74. The first opposing surface 74 is an example of a "housing sealing surface" in the present invention. The first opposing surface 74 is located at the rear end of the mounting portion 73. As a result, the first opposing surface 74 constitutes the rear end surface of the mounting portion 73 and faces the rear of the inverter case 7 and, consequently, the electric compressor. The first opposing surface 74 is subjected to a known polishing process. As a result, the first opposing surface 74 has a first surface roughness. Therefore, the first opposing surface 74, including other parts of the mounting portion 73, is smoother than the bottom wall main body portion 71 and the third side wall 7b.

[0041] Furthermore, the first opposing surface 74 has a through hole 75 and two screw grooves 76. The through hole 75 is formed in a substantially rectangular columnar shape that extends in the axial direction of the electric compressor, and penetrates the first opposing surface 74 and the mounting portion 73 in the axial direction of the electric compressor. As a result, the front end of the through hole 75 opens into the inverter chamber 70, and the rear end of the through hole 75 opens into the first opposing surface 74. In this way, the through hole 75 connects the inverter chamber 70 to the outside of the inverter case 7.

[0042] Each thread groove 76 is arranged outside the through hole 75, respectively. Further, the thread grooves 76 are arranged spaced apart from each other in the circumferential direction of the through hole 75. Each thread groove 76 opens to the first opposing surface 74, and extends forward in the axial direction of the electric compressor inside the mounting portion 73. Note that the number of thread grooves 76 can be designed as appropriate.

[0043] As shown in FIG. 1, the inverter 9 is housed in the inverter chamber 70. The inverter 9 is constituted by a circuit board 9a, a switching element 9b provided on the circuit board 9a, and the like. The circuit board 9a is fixed to the first bottom wall 11a in the inverter chamber 70. Further, the circuit board 9a is connected to the connection portion of the electric driving mechanism 3 via an airtight terminal (not shown) provided on the first bottom wall 11a. Thus, the inverter 9 and the electric driving mechanism 3 are connected to each other.

[0044] As shown in FIG. 2, the case-side connector 15 includes a connector housing 81, an insulating member 82, a first bus bar 83a, and a second bus bar 83b.

[0045] The connector housing 81 is made of resin. The connector housing 81 has a second opposing surface 81a facing forward. Further, the connector housing 81 is formed with a holding hole 84, a housing groove 85, a flange portion 86, and a connection port 87. The second opposing surface 81a is an example of the "connector seal surface" in the present invention. Further, the flange portion 86 is an example of the "fastening portion" in the present invention.

[0046] The holding hole 84 is located substantially at the center of the connector housing 81, and penetrates the connector housing 81 in the front-rear direction. The housing groove 85 is recessed in the second opposing surface 81a at a position on the outer peripheral side of the holding hole 84. The housing groove 85 has an annular shape facing forward. The inner diameter of the housing groove 85 is formed larger than the inner diameter of the holding hole 84 and the through hole 75 of the inverter case 7. Accordingly, the housing groove 85 has a shape that surrounds the holding hole 84 from the outside.

[0047] The flange portion 86 is located on the outer peripheral side of the second opposing surface 81a and the accommodation groove 85 in the connector housing 81. Two bolt holes 88 are formed in the flange portion 86. Each bolt hole 88 penetrates the flange portion 86 in the front-rear direction. The bolt holes 88 are spaced apart from each other in the circumferential direction of the accommodation groove 85 so as to respectively correspond to the respective screw grooves 76 of the inverter case 7. Note that the number of bolt holes 88 can be appropriately designed according to the number of screw grooves 76.

[0048] The connection port 87 is located rearward of the holding hole 84, the accommodation groove 85, and the flange portion 86 in the connector housing 81. Accordingly, the connection port 87 constitutes a rear portion of the connector housing 81. The connection port 87 is formed in a substantially rectangular cylindrical shape extending rearward in the axial direction of the electric compressor. The inside of the connection port 87 communicates with the holding hole 84.

[0049] Further, the connector housing 81 is integrally formed with an insertion portion 89 to be inserted into the through hole 75. The insertion portion 89 is located forward of the holding hole 84, the accommodation groove 85, and the flange portion 86 in the connector housing 81. Accordingly, the insertion portion 89 constitutes a front portion of the connector housing 81. The insertion portion 89 is formed in a substantially rectangular cylindrical shape extending forward in the axial direction of the electric compressor. Here, the outer diameter of the insertion portion 89 is formed to be slightly smaller than the inner diameter of the through hole 75 of the inverter case 7. Further, the inside of the insertion portion 89 communicates with the holding hole 84. Accordingly, the inside of the connection port 87 and the inside of the insertion portion 89 communicate with each other through the holding hole 84.

[0050] The insulating member 82 is formed of an insulating resin. The insulating member 82 is inserted into the holding hole 84 and fixed in the holding hole 84. In this way, the insulating member 82 is arranged inside the connector housing 81.

[0051] The first busbar 83a and the second busbar 83b are formed from metal plates. The first busbar 83a and the second busbar 83b have the same configuration and are each inserted through the insulating member 82. As a result, the first busbar 83a and the second busbar 83b are held by the insulating member 82 within the connector housing 81 while being separated from each other. In this way, the rear ends of the first busbar 83a and the second busbar 83b are positioned inside the connection port 87. The front ends of the first busbar 83a and the second busbar 83b each protrude forward from the insertion portion 89. The shapes of the first busbar 83a and the second busbar 83b can be designed as appropriate.

[0052] The sealing member 41 is made of an elastically deformable resin such as synthetic rubber. As shown in Figure 3, the sealing member 41 is formed in an annular shape having approximately the same diameter as the housing groove 85, and has an outer circumferential surface 411 and an inner circumferential surface 412. Here, in the sealing member 41, the distance between the outer circumferential surface 411 and the inner circumferential surface 412 in the radial direction of the sealing member 41, that is, the length of the width of the sealing member 41 in the radial direction, is the first length L1. In addition, in the sealing member 41, the length in the front-to-back direction, that is, the length of the wall thickness of the sealing member 41, is the second length L2. This second length L2 is slightly longer than the depth of the housing groove 85.

[0053] In this electric compressor, a surface roughness mitigating member 42 is provided between the sealing member 41 and the first opposing surface 74 in the axial direction of the electric compressor.

[0054] As shown in Figure 4, the surface roughness mitigating member 42 consists of a base portion 42a and a mounting layer 42b. The base portion 42a is an example of the "sealing member contact layer" in the present invention, and the mounting layer 42b is an example of the "adjustment layer" in the present invention. The base portion 42a is formed of a resin film. The base portion 42a is formed in the shape of an annular plate. As a result, as shown in Figure 5, the base portion 42a has a front surface 420a and a rear surface 420b located on the opposite side of the front surface 420a.

[0055] Furthermore, the base portion 42a is formed with a second surface roughness. In other words, the base portion 42a has a second surface roughness. This second surface roughness is smaller than the first surface roughness of the first opposing surface 74. As a result, the base portion 42a is formed to be smoother than the first opposing surface 74. Note that the base portion 42a may be formed of an elastically deformable resin such as synthetic rubber.

[0056] As shown in Figure 4, the mounting layer 42b is provided on the front surface 420a of the base portion 42a. Thus, the mounting layer 42b is integral with the base portion 42a. The mounting layer 42b is formed from an adhesive capable of bonding metal and resin. Furthermore, the mounting layer 42b is formed in the shape of a ring-shaped plate having the same diameter as the base portion 42a.

[0057] These base portion 42a and mounting layer 42b give the surface roughness mitigating member 42 an annular shape, and it has an outer circumferential surface 421 and an inner circumferential surface 422. In the surface roughness mitigating member 42, the distance between the outer circumferential surface 421 and the inner circumferential surface 422 in the radial direction, that is, the length of the radial width of the surface roughness mitigating member 42, is the third length L3. This third length L3 is longer than the first length L1. In addition, in the surface roughness mitigating member 42, the length in the front-to-back direction, that is, the length of the wall thickness of the surface roughness mitigating member 42, is the fourth length L4. This fourth length L4 is shorter than the second length L2. As a result, the surface roughness mitigating member 42 has an annular shape that is wider in the radial direction and thinner than the sealing member 41.

[0058] In this electric compressor, as shown in Figure 5, the sealing member 41 is provided in the connector housing 81 by housing the sealing member 41 in the housing groove 85. Here, as described above, the second length L2, which is the thickness of the sealing member 41, is longer than the depth of the housing groove 85. For this reason, although detailed illustration is omitted, the sealing member 41, when housed in the housing groove 85, protrudes slightly forward from the second opposing surface 81a. Note that in Figure 5, for the sake of ease of explanation, the connector housing 81, including the housing groove 85, is shown with dashed lines. Also, in Figure 5, as an example, the shape of the uneven post-polishing protrusions and recesses on the first opposing surface 74, which are created by polishing, is exaggerated in the illustration.

[0059] On the other hand, the surface roughness mitigating member 42 has a through hole 75 on its inside, and the mounting layer 42b is positioned opposite the first opposing surface 74. The mounting layer 42b of the surface roughness mitigating member 42 is bonded to the first opposing surface 74 at a position where the base 42a faces the sealing member 41 in the axial direction of the electric compressor. In this way, the base 42a is fixed to the first opposing surface 74 in this electric compressor.

[0060] Thus, after the sealing member 41 is provided on the connector housing 81 and the base portion 42a of the surface roughness mitigating member 42 is fixed to the first opposing surface 74, in this electric compressor, as shown in Figure 2, bolts 51 are inserted through each bolt hole 88 of the connector housing 81 and these bolts 51 are screwed into each screw groove 76 of the inverter case 7. The bolts 51 are an example of a "fastening member" in the present invention. In this way, in this electric compressor, the flange portion 86 is fastened to the mounting portion 73 of the inverter case 7 by each bolt 51, thereby fixing the case-side connector 15 to the first opposing surface 74 and, consequently, to the mounting portion 73.

[0061] In this way, the case-side connector 15 is fixed to the first opposing surface 74, so that the first opposing surface 74 and the second opposing surface 81a face each other in the axial direction of the electric compressor, with the sealing member 41 and the surface roughness mitigating member 42 interposed between them. In other words, in this electric compressor, the second opposing surface 81a, the sealing member 41, the surface roughness mitigating member 42, and the first opposing surface 74 are arranged in this order from the case-side connector 15 toward the inverter case 7. In addition, the insertion portion 89 of the case-side connector 15 is located within the through hole 75. Furthermore, the first bus bar 83a and the second bus bar 83b of the case-side connector 15 extend into the inverter chamber 70 through the through hole 75. As a result, the first bus bar 83a and the second bus bar 83b are connected to the circuit board 9a of the inverter 9 within the inverter chamber 70.

[0062] Furthermore, as the case-side connector 15 is fixed to the mounting portion 73, the sealing member 41 and the base portion 42a of the surface roughness mitigating member 42 come into contact in the axial direction of the electric compressor, as shown in Figure 5. More specifically, the sealing member 41 and the rear surface 420b of the base portion 42a come into contact in the axial direction of the electric compressor. The sealing member 41 and the base portion 42a then come into close contact with each other, elastically deforming in the axial direction of the electric compressor due to the fastening force of each bolt 51 when fixing the case-side connector 15 to the inverter case 7. In this way, in this electric compressor, the sealing member 41 and the surface roughness mitigating member 42 surround the through hole 75 from the outside, sealing the space between the outside of the inverter case 7 and the inside of the inverter case 7, that is, the space between the outside of the housing 1 and the inverter chamber 70.

[0063] Furthermore, due to the fastening force of each bolt 51, the mounting layer 42b of the surface roughness mitigating member 42 deforms to conform to the uneven surface of the first opposing surface 74, and becomes in close contact with the first opposing surface 74. As a result, the surface roughness mitigating member 42 is firmly bonded to the first opposing surface 74.

[0064] As shown in Figure 1, one end of the power supply connector 100 is connected to the connection port 87 of the case-side connector 15. The other end of the power supply connector 100 is connected to a battery 200 located inside the vehicle and outside the electric compressor. The battery 200 is an example of an "external power source" in this invention. In this way, the electric compressor is electrically connected to the battery 200 via the case-side connector 15 and the power supply connector 100.

[0065] In the electric compressor configured as described above, power is supplied from the battery 200 to the inverter 9 through the first and second busbars 83a and 83b of the power supply side connector 100 and the case side connector 15. As a result, the inverter 9 converts the DC current supplied from the battery 200 into AC current. The inverter 9 then supplies AC current to the electric mechanism 3 and controls the drive of the electric mechanism 3. As a result, the electric mechanism 3 drives the compression mechanism 5. In this way, the compression mechanism 5 compresses the refrigerant drawn in from the intake port and discharges the compressed refrigerant from the discharge port.

[0066] Furthermore, in this electric compressor, a surface roughness mitigating member 42 is provided between the sealing member 41 and the first opposing surface 74 in the axial direction of the electric compressor. Therefore, in this electric compressor, the sealing member 41 is not in direct contact with the first opposing surface 74. As a result, in this electric compressor, it is difficult for water or liquid chemicals to flow from the outside of the electric compressor into the inverter chamber 70, and corrosion of the inverter case 7 by water or liquid chemicals such as de-icing agents can be effectively suppressed. The following will explain this effect in detail based on a comparison with the electric compressor of a comparative example.

[0067] (Comparative Example) As shown in Figure 8, in the comparative example electric compressor, a sealing member 41 is provided between the mounting portion 73 of the inverter case 7 in the axial direction of the electric compressor and the connector housing 81 of the case-side connector 15, but a surface roughness mitigating member 42 is not provided. Other components of the comparative example electric compressor are the same as those of the electric compressor of Example 1, and the same components are denoted by the same reference numerals, and a detailed explanation of the components is omitted. In addition, as in Figure 5, the connector housing 81, including the housing groove 85, is shown with dashed lines in Figure 8, and the shapes of the polished protrusions and polished recesses on the first opposing surface 74 are exaggerated in the illustration.

[0068] In the comparative example electric compressor, the first opposing surface 74 of the mounting portion 73 is polished, and the first opposing surface 74 has a first surface roughness. In the comparative example electric compressor, the case-side connector 15 is fixed to the inverter case 7 by each bolt 51, so that the sealing member 41 elastically deforms in the axial direction of the electric compressor while in contact with the first opposing surface 74. In this way, in the comparative example electric compressor, the sealing member 41 surrounds the through hole 75 from the outside, sealing the space between the outside of the electric compressor and the inverter chamber 70. Here, although the first opposing surface 74 has been polished to have a first surface roughness, the first opposing surface 74 is not perfectly smooth, and fine polished protrusions and polished recesses inevitably exist on the first opposing surface 74.

[0069] As a result, the sealing member 41 elastically deforms while in contact with the first opposing surface 74, causing each post-polishing recess on the first opposing surface 74 to appear as if it were covered from the rear by the sealing member 41. Consequently, multiple minute spaces S are formed between the post-polishing recesses on the first opposing surface 74 and the sealing member 41.

[0070] As a result, in the comparative example's electric compressor, even if a sealing member 41 is provided, water or liquid chemicals flowing from outside the housing 1 between the first opposing surface 74 and the second opposing surface 81a will flow through space S, as shown by the solid arrow in Figure 8. Therefore, in the comparative example's electric compressor, water or liquid chemicals flowing through space S will reach the through hole 75 and, consequently, the inverter chamber 70. As a result, in the comparative example's electric compressor, such water or liquid chemicals are likely to cause short circuits in the first and second busbars 83a and 83b and the inverter 9.

[0071] Furthermore, as shown by the dashed hatching in Figure 8, in the comparative example's electric compressor, water and liquid chemicals tend to accumulate in the space S. As a result, in the comparative example's electric compressor, the water and liquid chemicals accumulated in space S cause corrosion of the first opposing surface 74 and, consequently, the inverter case 7. As the corrosion of the inverter case 7 progresses, water and liquid chemicals can flow more easily through space S, making short circuits more likely to occur in the first and second busbars 83a and 83b and the inverter 9 in the comparative example's electric compressor.

[0072] In contrast, as shown in Figure 5, the electric compressor of Example 1 is provided with a surface roughness mitigating member 42 in addition to the sealing member 41. The base 42a of the surface roughness mitigating member 42 has a second surface roughness that is smaller than the first surface roughness. As a result, the base 42a is smoother than the first opposing surface 74. Therefore, in the electric compressor of Example 1, the sealing member 41 and the base 42a come into contact, allowing the sealing member 41 and the base 42a to adhere to each other well. As a result, it is difficult for gaps or spaces to form between the sealing member 41 and the base 42a through which water or liquid chemicals can flow. As a result, in the electric compressor of Example 1, it is difficult for water or liquid chemicals flowing from outside the housing 1 to penetrate between the sealing member 41 and the base 42a.

[0073] Furthermore, in the electric compressor of Embodiment 1, the base portion 42a is bonded to the first opposing surface 74 by a mounting layer 42b formed of adhesive. Here, the mounting layer 42b deforms to conform to the irregularities present on the first opposing surface 74 due to the fastening force of each bolt 51 when fixing the case-side connector 15 to the first opposing surface 74, thereby bonding the base portion 42a to the first opposing surface 74. In other words, even after polishing, fine post-polishing protrusions and recesses inevitably exist on the first opposing surface 74, so the first opposing surface 74 is slightly uneven. However, the mounting layer 42b deforms to follow these irregularities on the first opposing surface 74, allowing it to fit into the post-polishing recesses present on the first opposing surface 74. In this deformed state, the mounting layer 42b bonds the base portion 42a to the first opposing surface 74. As a result, in the electric compressor of Example 1, gaps or spaces through which water or liquid chemicals can flow are less likely to form between the surface roughness mitigating member 42 and the first opposing surface 74.

[0074] In the electric compressor of Embodiment 1, the radial width of the sealing member 41 is the first length L1, and the radial width of the surface roughness mitigating member 42 is the third length L3. This third length L3 is longer than the first length L1. Also, since the radial width of the sealing member 41 is the first length L1, the seal length between the sealing member 41 and the base 42a, formed by the contact between the sealing member 41 and the base 42a, is the first length L1. On the other hand, since the radial width of the surface roughness mitigating member 42 is the third length L3, the seal length between the mounting layer 42b, formed by the adhesion of the mounting layer 42b to the first opposing surface 74, and the first opposing surface 74 is the third length L3. Thus, in the electric compressor of Embodiment 1, the seal length between the mounting layer 42b and the first opposing surface 74 is longer than the seal length between the sealing member 41 and the base 42a.

[0075] As a result, in the electric compressor of Example 1, the sealing member 41 and the surface roughness mitigating member 42 effectively prevent water or liquid chemicals from flowing from outside the housing 1 into the through-hole 75 and, consequently, into the inverter chamber 70. Therefore, in the electric compressor of Example 1, short circuits in the first and second busbars 83a and 83b and the inverter 9 caused by water or liquid chemicals can be effectively prevented.

[0076] Furthermore, as described above, since it is difficult for gaps or spaces to form between the surface roughness mitigating member 42 and the first opposing surface 74 through which water or liquid chemicals can flow, corrosion of the inverter case 7 due to water or liquid chemicals can be effectively suppressed in the electric compressor of Example 1.

[0077] Therefore, the electric compressor of Embodiment 1 exhibits excellent sealing performance between the outside and inside of the housing 1, as well as high durability.

[0078] In particular, in this electric compressor, the radial width of the surface roughness mitigating member 42 is longer than the radial width of the sealing member 41. As a result, the base 42a of the surface roughness mitigating member 42 can not only contact the sealing member 41, but the base 42a can also contact the second opposing surface 81a around the sealing member 41. This allows the base 42a to cover the housing groove 85 while also providing a suitable seal between the surface roughness mitigating member 42 and the second opposing surface 81a. Therefore, in this electric compressor, water and liquid chemicals that have flowed between the first opposing surface 74 and the second opposing surface 81a and reached the sealing member 41 and the surface roughness mitigating member 42 are less likely to penetrate between the surface roughness mitigating member 42 and the first opposing surface 74. In this respect as well, this electric compressor can effectively prevent water and liquid chemicals from reaching the inverter chamber 70.

[0079] Furthermore, since the radial width of the surface roughness mitigating member 42 is the third length L3, the surface roughness mitigating member 42 can also ensure a suitable bonding area with the first opposing surface 74. As a result, the base portion 42a can be suitably fixed to the first opposing surface 74 in this electric compressor.

[0080] Furthermore, in this electric compressor, since the base 42a of the surface roughness mitigating member 42 is formed of a resin film, the surface roughness mitigating member 42 can be easily formed, and the surface roughness mitigating member 42 can be made thin. In addition, in this electric compressor, the base 42a itself has higher resistance to water and liquid chemicals compared to when the base 42a is made of metal. Also, the base 42a can be suitably elastically deformed by contacting the sealing member 41 and the second opposing surface 81a. In this respect as well, this electric compressor can suitably prevent water and liquid chemicals from reaching the inverter chamber 70.

[0081] (Example 2) As shown in Figure 6, in the electric compressor of Example 2, a surface roughness mitigating member 43 is provided between the sealing member 41 and the first opposing surface 74 in the axial direction of the electric compressor, instead of the surface roughness mitigating member 42.

[0082] Furthermore, in this electric compressor, a collar 91 is inserted through each bolt hole 88 of the connector housing 81. As a result, each collar 91 is provided on the flange portion 86. Each collar 91 is made of metal and is formed in a cylindrical shape.

[0083] As shown in Figure 7, the surface roughness mitigating member 43 consists of a base portion 43a, a mounting layer 43b, a color contact layer 43c, and a color conforming layer 43d.

[0084] The base portion 43a has the same configuration as the base portion 42a of the surface roughness mitigating member 42, and is formed of a resin film. As a result, the base portion 43a is in the shape of an annular plate and has a front surface 430a and a rear surface 430b located on the opposite side of the front surface 430a.

[0085] Furthermore, the base portion 43a also has a second surface roughness. Therefore, the base portion 43a is also formed to be smoother than the first opposing surface 74. The base portion 43a may also be formed of an elastically deformable resin such as synthetic rubber.

[0086] The color contact layer 43c is formed integrally with the base portion 43a. As a result, the color contact layer 43c is also formed from a resin film. The color contact layer 43c is located on the outer circumference of the base portion 43a and has an annular shape that encircles the base portion 43a. Furthermore, since it is formed from a resin film, the color contact layer 43c is plate-shaped, similar to the base portion 43a, and has a front surface 430c and a rear surface 430d located on the opposite side of the front surface 430c. Because the base portion 43a and the color contact layer 43c are integrally formed, the front surface 430a of the base portion 43a and the front surface 430c of the color contact layer 43c are integrally continuous. And the rear surface 430b of the base portion 43a and the rear surface 430d of the color contact layer 43c are integrally continuous.

[0087] Furthermore, the color contact layer 43c also has a second surface roughness. Therefore, the color contact layer 43c is also formed to be smoother than the first opposing surface 74. The color contact layer 43c may also be formed from an elastically deformable resin such as synthetic rubber. In addition, the base portion 43a and the color contact layer 43c may be formed as separate parts.

[0088] The mounting layer 43b has the same configuration as the mounting layer 42b of the surface roughness mitigating member 42, and is provided on the front surface 430a of the base portion 43a.

[0089] The color-adhering layer 43d is formed from an adhesive capable of bonding metal and resin, similar to the mounting layer 43b, and is integral with the mounting layer 43b. The color-adhering layer 43d is located on the outer circumference of the mounting layer 43b and has an annular shape that encircles the mounting layer 43b. The color-adhering layer 43d is provided on the front surface 430c of the color contact layer 43c. As a result, the color contact layer 43c and the color-adhering layer 43d are integrally formed.

[0090] Due to these base portion 43a, mounting layer 43b, color contact layer 43c, and color conforming layer 43d, the surface roughness mitigating member 43 has a larger diameter and wider annular shape compared to the surface roughness mitigating member 42.

[0091] Furthermore, the surface roughness mitigating member 43 has the same number of through holes 93 as the bolt holes 88 formed in the color contact layer 43c and the color conforming layer 43d. Each of the through holes 93 penetrates the color contact layer 43c and the color conforming layer 43d, respectively.

[0092] As shown in Figure 6, the surface roughness mitigating member 43 has through holes 75 on its inside, and the mounting layer 43b and the color-fitting layer 43d are bonded to the first opposing surface 74. In other words, the color-fitting layer 43d is bonded to the first opposing surface 74 on the outside of the mounting layer 43b. Thus, in this electric compressor, the surface roughness mitigating member 43 is provided between the sealing member 41 and the first opposing surface 74. In this electric compressor, the case-side connector 15 is fixed to the mounting portion 73 by inserting each bolt 51 into each collar 91. At this time, each bolt 51 is inserted into each insertion hole 93 of the surface roughness mitigating member 43 and screwed into each screw groove 76. The other configurations of this electric compressor are the same as those of the electric compressor in Embodiment 1.

[0093] In this electric compressor, the case-side connector 15 is fixed to the mounting portion 73 by each bolt 51, so that the sealing member 41 and the base portion 43a of the surface roughness mitigating member 43 come into contact in the axial direction of the electric compressor. As a result, the sealing member 41 and the base portion 43a are in close contact, sealing the space between the sealing member 41 and the base portion 43a. At this time, similar to the electric compressor of Embodiment 1, the base portion 43a also comes into contact with the second opposing surface 81a around the sealing member 41. Therefore, the space between the base portion 43a and the second opposing surface 81a is also sealed. Furthermore, in the surface roughness mitigating member 43, the collar contact layer 43c comes into contact with each collar 91 and flange portion 86 on the outside of the base portion 43a in the axial direction of the electric compressor. As a result, in this electric compressor, the space between each collar 91 and flange portion 86 and the collar contact layer 43c is also sealed.

[0094] Then, in the surface roughness mitigating member 43, the fastening force of each bolt 51 when fixing the case-side connector 15 to the mounting portion 73 causes the mounting layer 43b to deform to conform to the uneven surface of the first opposing surface 74, and it adheres to the first opposing surface 74. Similarly, the color conforming layer 43d also deforms on the outside of the mounting layer 43b to conform to the uneven surface of the first opposing surface 74, and it adheres to the first opposing surface 74. In this way, the space between the surface roughness mitigating member 43 and the first opposing surface 74 is also sealed.

[0095] Thus, in this electric compressor, not only is the space between the base 43a of the surface roughness mitigating member 43 and the sealing member 41 sealed, but the color contact layer 43c also contacts each color 91 and flange portion 86, effectively preventing water or liquid chemicals from flowing between each color 91 and flange portion 86 and the color contact layer 43c. As a result, in this electric compressor, it is more difficult for water or liquid chemicals to reach the space between the base 43a and the sealing member 41 from outside the housing 1.

[0096] Furthermore, in this electric compressor, the mounting layer 43b and the color-adhering layer 43d of the surface roughness mitigating member 43 deform to conform to the unevenness of the first opposing surface 74 and adhere to the first opposing surface 74, making it more difficult for water or liquid chemicals to penetrate between the surface roughness mitigating member 43 and the first opposing surface 74. Moreover, because the mounting layer 43b and the color-adhering layer 43d adhere to the first opposing surface 74, this electric compressor makes it possible to suitably adhere the surface roughness mitigating member 43 to the first opposing surface 74.

[0097] Furthermore, since each bolt 51 is inserted through each metal collar 91, this electric compressor effectively prevents looseness in the case-side connector 15 while it is fixed to the mounting portion 73. Other functions of this electric compressor are the same as those of the electric compressor in Embodiment 1.

[0098] Although the present invention has been described above in reference to Examples 1 and 2, it goes without saying that the present invention is not limited to Examples 1 and 2, and can be applied with appropriate modifications without departing from its spirit.

[0099] For example, in the electric compressor of Embodiment 1, the base portion 42a, which is the sealing member contact layer, and the mounting layer 42b, which is the settling layer, constitute the surface roughness mitigating member 42. However, in the present invention, the sealing member contact layer and the settling layer do not constitute the surface roughness mitigating member, and the sealing member contact layer and the settling layer may be provided between the sealing member and the housing seal surface.

[0100] Furthermore, in the electric compressor of Example 1, the first opposing surface 74, which is the housing sealing surface, has a first surface roughness, and the base portion 42a, which is the sealing member contact layer, has a second surface roughness smaller than the first surface roughness, but the present invention is not limited to this case.

[0101] Furthermore, in the electric compressor of Example 1, the mounting layer 42b formed with adhesive is used as the "adhesion layer" in the present invention. However, the invention is not limited to this, and the mounting layer 42b formed with adhesive may be used as the "adhesion layer" in the present invention, and the surface roughness mitigating member 42 may be attached to the first opposing surface 74 by adhering this mounting layer 42b to the first opposing surface 74. The same applies to the electric compressor of Example 2.

[0102] Alternatively, the color-matching layer 43d in the electric compressor of Example 2 may be formed with an adhesive.

[0103] Furthermore, in the electric compressor of Example 1, the base portion 42a of the surface roughness mitigating member 42 is formed of a resin film. However, the base portion 42a is not limited to this, and may be formed of a metal plate or the like having a second surface roughness. The same applies to the electric compressor of Example 2.

[0104] Furthermore, the color contact layer 43c in the electric compressor of Example 2 may also be formed from a metal plate or the like having a second surface roughness.

[0105] Furthermore, in the electric compressor of Example 1, the insertion portion 89 is integrally formed with the connector housing 81. However, this is not the only option; the connector housing 81 and the insertion portion 89 may be formed as separate components. The same applies to the electric compressor of Example 2.

[0106] Furthermore, in the electric compressor of Embodiment 1, the flange portion 86, and consequently the case-side connector 15, is fixed to the first opposing surface 74 by bolts 51. However, the invention is not limited to this, and the case-side connector 15 may also be fixed to the inverter case 7 outside the first opposing surface 74, for example. The same applies to the electric compressor of Embodiment 2.

[0107] Furthermore, in the electric compressor of Embodiment 1, the housing 1 may be composed of the first housing 11 and the second housing 13, and the case-side connector 15 may be fixed to the first housing 11 or the second housing 13. The same applies to the electric compressor of Embodiment 2.

[0108] Furthermore, in the electric compressor of Embodiment 1, the sealing member 41 is provided in the housing groove 85 of the case-side connector 15, thereby sealing the inside and outside of the housing 1 between the inverter case 7 and the case-side connector 15. However, the sealing member 41 is not limited to this, and may be provided on a member other than the case-side connector 15 to seal the inside and outside of the housing 1. The same applies to the electric compressor of Embodiment 2.

[0109] Furthermore, in the electric compressor of Example 1, the insertion portion 89 may be omitted. The same applies to the electric compressor of Example 2.

[0110] Furthermore, the "in-vehicle electrical equipment" in this invention may be something other than an electric compressor.

[0111] Furthermore, this specification includes the following invention: (Note 1) An in-vehicle electrical device comprising a metal housing and a sealing member for sealing the inside and outside of the housing, wherein the housing has a housing sealing surface that seals together with the sealing member, wherein between the sealing member and the housing sealing surface, there is a sealing member contact layer that abuts against the sealing member and a conforming layer that adheres or is attached to the housing sealing surface and deforms to conform to the uneven surface of the housing sealing surface, the sealing member contact layer and the conforming layer are integrally formed, the inside and outside of the housing are sealed by the contact between the sealing member and the sealing member contact layer and the conforming layer adhering or is attached to the housing sealing surface, and the sealing length between the conforming layer and the housing sealing surface is longer than the sealing length between the sealing member and the sealing member contact layer.

[0112] (Note 2) The automotive electrical equipment according to Note 1, wherein the housing sealing surface has a first surface roughness, and the sealing member contact layer has a second surface roughness smaller than the first surface roughness.

[0113] (Note 3) The sealing member contact layer and the conforming layer constitute a surface roughness mitigating member that mitigates the surface roughness of the housing seal surface, the housing has a through hole that connects the inside and outside of the housing, a connector portion fixed to the housing is inserted into the through hole, the connector portion has a connector seal surface located on the opposite side of the surface roughness mitigating member with the sealing member in between, the connector seal surface, the sealing member, the surface roughness mitigating member, and the housing seal surface are arranged in that order, the connector seal surface and the sealing member are in contact, the sealing member and the sealing member contact layer are in contact, and the conforming layer is adhered or bonded to the housing seal surface, thereby sealing the inside and outside of the housing that are connected by the through hole.

[0114] (Note 4) The in-vehicle electrical equipment according to any one of Notes 1 to 3, wherein the connector portion has a fastening portion that is fastened to the housing by a fastening member outside the connector sealing surface, and the conforming layer deforms to conform to the uneven shape when the connector portion is fastened to the housing.

[0115] (Note 5) The connector portion has a fastening portion that is fastened to the housing seal surface by a fastening member outside the connector seal surface, the fastening portion is provided with a collar through which the fastening member is inserted, the surface roughness mitigating member has a collar contact layer located between the housing seal surface and the collar and in contact with the collar, and a collar conforming layer that is adhered to or attached to the housing seal surface and deforms to conform to the uneven surface, the collar contact layer has the second surface roughness, the collar contact layer and the color conforming layer are integrally formed, and the inside and outside of the housing that communicate through the through hole are sealed by the collar in contact with the collar contact layer and the color conforming layer being adhered to or attached to the housing seal surface.

[0116] (Note 6) The sealing member contact layer and the color contact layer are made of a resin film, and the vehicle-mounted electrical equipment is as described in any one of Notes 1 to 5.

[0117] (Note 7) The in-vehicle electrical equipment according to any one of Notes 1 to 6, wherein the sealing member and the surface roughness mitigating member are formed in an annular shape surrounding the through hole, the connector portion is provided with the sealing member and an annular receiving groove opening toward the surface roughness mitigating member, and the sealing member contact layer is formed to be wider than the receiving groove and covers the receiving groove.

[0118] This invention can be used in electrical equipment installed in vehicles.

[0119] 1…Housing 15…Case-side connector (connector part) 41…Sealing member 42, 43…Surface roughness mitigating member 42a, 43a…Base (sealing member contact layer) 42b, 43b…Mounting layer (adjustment layer) 43c…Collar contact layer 43d…Collar adjustability layer 51…Bolt (fastening member) 74…First opposing surface (housing sealing surface) 75…Through hole 85…Housing groove 86…Flange part (fastening part) 91…Collar

Claims

1. An in-vehicle electrical device comprising a metal housing and a sealing member for sealing the inside and outside of the housing, wherein the housing has a housing sealing surface that seals together with the sealing member, wherein between the sealing member and the housing sealing surface, there is a sealing member contact layer that abuts against the sealing member and a conforming layer that adheres or is attached to the housing sealing surface and deforms to conform to the uneven surface of the housing sealing surface, the sealing member contact layer and the conforming layer are integrally formed, the inside and outside of the housing are sealed by the contact between the sealing member and the sealing member contact layer and the conforming layer adhering or being attached to the housing sealing surface, and the sealing length between the conforming layer and the housing sealing surface is longer than the sealing length between the sealing member and the sealing member contact layer.

2. The in-vehicle electrical equipment according to claim 1, wherein the housing sealing surface has a first surface roughness, and the sealing member contact layer has a second surface roughness smaller than the first surface roughness.

3. The in-vehicle electrical equipment according to claim 1 or 2, wherein the sealing member contact layer and the conforming layer constitute a surface roughness mitigating member that mitigates the surface roughness of the housing seal surface, the housing has a through hole that connects the inside and outside of the housing, a connector portion fixed to the housing is inserted into the through hole, the connector portion has a connector seal surface located on the opposite side of the surface roughness mitigating member with the sealing member in between, the connector seal surface, the sealing member, the surface roughness mitigating member, and the housing seal surface are arranged in that order, the connector seal surface and the sealing member are in contact, the sealing member and the sealing member contact layer are in contact, and the conforming layer is adhered or bonded to the housing seal surface, thereby sealing the inside and outside of the housing that are connected by the through hole.

4. The in-vehicle electrical device according to claim 3, wherein the connector portion has a fastening portion that is fastened to the housing by a fastening member outside the connector sealing surface, and the conforming layer deforms to conform to the uneven shape when the connector portion is fastened to the housing.

5. The connector portion has a fastening portion that is fastened to the housing seal surface by a fastening member outside the connector seal surface, the fastening portion is provided with a collar through which the fastening member is inserted, the surface roughness mitigating member has a collar contact layer positioned between the housing seal surface and the collar and in contact with the collar, and a collar conforming layer that is adhered to or attached to the housing seal surface and deforms to conform to the uneven surface, the collar contact layer has the second surface roughness, the collar contact layer and the color conforming layer are integrally formed, and the inside and outside of the housing that communicate through the through hole are sealed by the collar in contact with the collar contact layer and the color conforming layer being adhered to or attached to the housing seal surface.

6. The in-vehicle electrical equipment according to claim 5, wherein the sealing member contact layer and the color contact layer are made of a resin film.

7. The in-vehicle electrical equipment according to claim 3, wherein the sealing member and the surface roughness mitigating member are formed in an annular shape surrounding the through hole, the connector portion is provided with the sealing member and an annular receiving groove opening toward the surface roughness mitigating member, and the sealing member contact layer is formed to be wider than the receiving groove and covers the receiving groove.

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