Electrical component

Abstract

The invention provides an electric component which suppresses leakage of cooling liquid and achieves anti-vibration. An electrical component is provided with: an electrical component main body that accommodates an electrical element therein and that is provided with a first through-hole for fixation; a plate member provided with a second through-hole disposed facing the first through-hole, and a cooling hole through which a cooling liquid flows; an anti-vibration rubber that surrounds the second through-hole of the plate member, is disposed on one surface and the other surface of the plate member, and is provided with a third through-hole facing the second through-hole; and a gasket which is disposed on each of one surface and the other surface of the plate member in a state of surrounding the cooling hole, the electrical component main body, the plate member, the anti-vibration rubber, and the gasket being fixed to a housing. At least a part of the bottom surface of the electrical component main body is in contact with the cooling liquid flowing in the cooling liquid flow path of the housing.

Description

Technical Field

[0001] The present invention relates to electrical components. Background Art

[0002] Conventionally, in order to cool electrical components that generate heat, such as capacitors and reactors, there are cases where the following configuration is used.

[0003] Heat-generating electrical components are molded with resin to form resin molded products (hereinafter referred to as molded products). In addition, a portion of the molded product is in contact with a cooling liquid, and the contact portion of the cooling liquid has a connection portion between the components. A sealing member is provided at the connection portion to prevent leakage of the cooling liquid. For example, Patent Document 1 describes the following Figure 8 The composition shown. Figure 8 An enlarged cross-sectional view showing a conventional cooling structure for an electrical component.

[0004] The electrical elements 101s such as capacitors and reactors generate heat during operation, and the electrical component body 101 as a molded product comes into contact with the cooling liquid 109 flowing in the cooling liquid flow path 102s formed in the housing 102, thereby exchanging heat and being cooled.

[0005] Furthermore, a cylindrical vibration-isolating member 103 disposed between the electrical component body 101 and the housing 102 has a cylindrical vibration-isolating rubber 103 r fixed to its center. The vibration-isolating rubber 103 r attenuates vibration of the housing 102 .

[0006] The bolts 104 are inserted through the electrical component body 101 and the vibration-isolating member 103 and screwed to the housing 102 , thereby fixing the electrical component body 101 having a sealing structure to the housing 102 .

[0007] A seal member 105 having a double seal structure 105a and 105b (a generally H-shaped cross section) is provided between the housing 102 and the electrical component body 101 to prevent leakage of the cooling liquid 109. Seal member buckling prevention walls 102a and 102b are formed on both sides of the housing 102 to sandwich the seal member 105 and prevent it from falling.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: Japanese Patent No. 6046812 Summary of the Invention

[0011] However, Patent Document 1, as a prior art, envisions a flange-connected piping structure. Specifically, it fails to consider the shaping of the cooling liquid flow path 102s in the housing 102 to which the electrical component body 101 is mounted, the vibration-damping effect of the housing 102, the cooling liquid flow pressure applied to the electrical component body 101, and other issues that may arise when the cooling liquid in the cooling liquid flow path 102s directly contacts the electrical component body 101 for cooling.

[0012] like Figure 8 As shown, when the sealing member 105 having a waterproof function and the vibration-isolating member 103 having a vibration-isolating function are simply arranged, the dimension from the cooling liquid flow path 102s to the fixing portion by the bolt 104 becomes long.

[0013] For example, the waterproof function requires a length s1 of the sealing member buckling prevention wall 102 a , a length s2 of the sealing member buckling prevention wall 102 b , and a groove width s3 for the sealing member 105 .

[0014] The vibration-proof function requires the assembly dimension s4 of the sealing member 105. A gap is required between the sealing member buckling prevention wall 102b and the vibration-proof member 103, so the dimensions s1+s2+s3+s5 are required overall for the waterproof and vibration-proof functions.

[0015] Furthermore, the sealing member 105 as a waterproof component and the vibration-isolating member 103 as a vibration-isolating component are separate components. This requires a lot of work to assemble them into the housing 102 and also results in large dimensional variations during assembly.

[0016] The present invention has been made in view of the above-mentioned actual situation, and an object of the present invention is to provide an electrical component that suppresses leakage of cooling liquid and achieves vibration isolation.

[0017] In order to solve the above-mentioned problems, the electrical component of the present invention comprises: an electrical component body, which accommodates an electrical element inside and is provided with a first through hole for fixing; a plate component, which is provided with a second through hole arranged opposite to the first through hole, and a cooling hole for flowing cooling liquid; vibration-proof rubber, which surrounds the second through hole of the plate component and is arranged on one surface and the other surface of the plate component, and is provided with a third through hole opposite to the second through hole; and a gasket, which is arranged in duplicate or more on one surface and the other surface of the plate component in a state of surrounding the cooling hole, the electrical component body, the plate component, the vibration-proof rubber, and the gasket are fixed to the shell, and at least a portion of the bottom surface of the electrical component body is in contact with the cooling liquid flowing in the cooling liquid flow path of the shell.

[0018] Effects of the Invention

[0019] According to the present invention, it is possible to provide an electrical component that suppresses leakage of cooling liquid and achieves vibration isolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a conceptual perspective view of the vehicle according to the first embodiment.

[0021] Figure 2 This is a three-dimensional diagram of the VCU housing.

[0022] Figure 3 This is an enlarged partial cross-sectional view showing the main parts of the cooling and vibration isolation structure in the VCU.

[0023] Figure 4A This is a top view of a component that prevents cooling liquid leakage and vibration.

[0024] Figure 4B yes Figure 4A II sectional view.

[0025] Figure 5A This is an exploded cross-sectional view of the anti-vibration rubber.

[0026] Figure 5B This is an exploded side view of the anti-vibration rubber.

[0027] Figure 6A This is a diagram showing the cooling liquid leakage prevention and vibration isolation member according to the second embodiment as viewed from one side.

[0028] Figure 6B yes Figure 6A A partial enlarged view of the II-II section.

[0029] Figure 7 This refers to the assembly process of components that prevent cooling liquid leakage and vibration. Figure 6A A partial enlarged view of the II-II section.

[0030] Figure 8 This is an enlarged cross-sectional view of a conventional cooling structure for electrical components.

[0031] Description of Reference Numerals

[0032] 5VCU housing (shell)

[0033] 5a cooling liquid flow path

[0034] 6 Electrical components

[0035] 6a Bottom surface of the electrical component body

[0036] 6a1 Flat area

[0037] 6h electrical component body

[0038] 6k 1st through hole

[0039] 6s electrical components

[0040] 7a Double sealing gasket (gasket)

[0041] 7b1 No. 1 anti-vibration rubber (anti-vibration rubber)

[0042] 7b13 1st center hole (3rd through hole)

[0043] 7b2 second anti-vibration rubber (anti-vibration rubber)

[0044] 7b23 2nd center hole (3rd through hole)

[0045] 7c Support plate (plate component)

[0046] 7c2 round hole (second through hole)

[0047] 7c3 long hole (cooling hole)

[0048] R Cooling Liquid DETAILED DESCRIPTION

[0049] Hereinafter, embodiments of the present invention will be described in detail with appropriate reference to the drawings.

[0050] Figure 1 It is a conceptual perspective view of the vehicle 1 according to the first embodiment.

[0051] The vehicle 1 of the embodiment is a vehicle that uses a fuel cell and a battery as a power source, that is, a fuel cell vehicle called an FCV, an electric vehicle called a BEV, and a hybrid vehicle called an HEV. A fuel cell vehicle is a vehicle that runs by operating a motor using electrical energy. This electrical energy is generated by -2 (anion) and H produced by the chemical reaction of hydrogen and oxygen + The electrical energy generated by the movement of positive ions (cations) between electrodes.

[0052] The vehicle 1 has a right front wheel 2r and a left front wheel 21 at the front, which are steerable wheels for changing the direction of travel of the vehicle 1. The vehicle 1 has a right rear wheel 3r and a left rear wheel 31 at the rear, which are driven wheels or drive wheels.

[0053] The vehicle 1 is provided with headlights 3h at the front to illuminate the road ahead R and taillights 3a at the rear to illuminate the road ahead R. The vehicle 1 is also provided with a front bumper 4f and a rear bumper 4r at the front and rear to absorb the impact of front and rear collisions, respectively.

[0054] The vehicle 1 is controlled by a control unit (ECU) 1e. The turning of the vehicle body 1h is detected by a yaw rate sensor (not shown), and the steering angle of the vehicle body 1h is detected by a steering angle sensor 1d.

[0055] Wheel speed sensors (not shown) are provided on the shafts and other rotating parts of the right front wheel 2r and the left front wheel 2l to detect the rotational speeds of the right front wheel 2r and the left front wheel 2l. Wheel speed sensors (not shown) are provided on the shafts and other rotating parts of the right rear wheel 3r and the left rear wheel 3l to detect the rotational speeds of the right rear wheel 3r and the left rear wheel 3l.

[0056] Detection information (sensor current) from the yaw rate sensor, the steering angle sensor 1d, and the wheel speed sensors is input to the control device 1e.

[0057] A fuel cell (not shown) is mounted on a floor panel within the vehicle body below the seat z of the vehicle 1 .

[0058] A VCU (Voltage Control Unit) 4 for converting the power of the fuel cell into a desired voltage is arranged directly above the fuel cell.

[0059] VCU4 via Figure 2 The outer shell is formed by a VCU casing (housing) 5 in the shape of a box with a bottom and an open top. Figure 2 It is a perspective view of the VCU housing 5.

[0060] Figure 3 This is an enlarged partial cross-sectional view showing a main portion of the cooling and vibration isolation structure in the VCU 4 .

[0061] <VCU housing (shell) 5>

[0062] Electrical components 6s such as capacitors, reactors, and power semiconductors that generate heat due to ripple current, Joule heat, switching loss, etc. are mounted in the VCU case 5. The electrical components 6s are formed as electrical component bodies 6h that are resin-molded, sealed components.

[0063] In order to cool the electrical component body 6h in which the electrical element 6s is sealed, the cooling liquid r (see Figure 3 ) is in direct contact with the electrical component body 6h.

[0064] The present invention aims to prevent leakage of the cooling liquid r to the outside, to isolate the vibration transmitted from the VCU case 5 fixed to the vehicle 1 to the electrical component body 6h, and to improve the assembly workability around the electrical component body 6h.

[0065] That is, the VCU case 5 is equipped with a structure (cooling liquid flow path 5 a , cooling liquid r) for cooling the electric component body 6 h in which the heat-generating electric element 6 s is sealed.

[0066] Furthermore, the electrical components 6 (see Figure 3 ) has the function of suppressing the Figure 1 ) is a vibration-proof structure for preventing vibration transmitted from the VCU casing 5 to the electrical component body 6h.

[0067] Figure 3 The illustrated electrical component 6 includes an electrical component body 6h and a liquid leakage and vibration suppression member 7 having a function of preventing leakage of the cooling liquid r to the outside (double sealing gasket 7a) and a vibration isolation structure (vibration isolation rubber 7b).

[0068] <Cooling and Vibration-Isolating Structure for Electrical Components 6>

[0069] Hereinafter, the cooling and vibration-isolating structure of the electrical component 6 will be described in detail.

[0070] exist Figure 3 The VCU housing 5 shown has a cooling liquid flow path 5a formed therein. Cooling liquid r flows through the cooling liquid flow path 5a to cool the electrical component main body 6h, which generates heat. The cooling liquid r, heated by heat exchange with the electrical component main body 6h, is then cooled by heat exchange with the outside air through a radiator (not shown).

[0071] As described above, the electrical component body 6h is a molded product in which the electrical element 6s is sealed, and at least the portion 6a (see FIG. Figure 3 ) is sealed by resin. In addition, the electric component 6s includes an electronic component.

[0072] Figure 3 The electrical component body 6h shown accommodates the electrical element 6s therein and has a flat portion 6a1 on at least a portion of its bottom surface. A first through hole 6k for fixing is provided in the flat portion 6a1 of the electrical component body 6h.

[0073] By screwing the bolt 5b on the threaded portion 5m of the VCU housing 5, Figure 3 A liquid leakage and vibration suppression member 7 is provided between the VCU case 5 and the electrical component body 6h. As described above, the electrical component body 6h and the liquid leakage and vibration suppression member 7 are included and referred to as the electrical component 6.

[0074] <Liquid leakage and vibration suppression components 7>

[0075] Figure 4A It is a top view of the liquid leakage and vibration suppression member 7. Figure 4B yes Figure 4A II sectional view.

[0076] Figure 5A is a top view of the support plate 7c, Figure 5BIt is an exploded side view of the vibration-isolating rubber 7b.

[0077] As mentioned above, Figure 4A The liquid leakage and vibration suppression member 7 shown is a double sealing gasket 7a and four vibration-proof rubbers 7b vulcanized and bonded to a support plate 7c (see FIG. Figure 5A ) and integrated into one component (refer to Figure 4B ).

[0078] The double seal packing 7a is a rubber formed in a double and annular shape to prevent leakage of the cooling liquid r to the outside.

[0079] The anti-vibration rubber 7b suppresses the vehicle 1 ( Figure 1 ) is transmitted to the electrical component body 6h.

[0080] <Support Plate 7c>

[0081] Figure 5A The support plate 7c shown is formed, for example, from a sheet metal part in the form of an elongated rectangular thin plate.

[0082] The support plate 7c has circular protrusions 7c1 formed at four corners, respectively, and a circular hole 7c2 is formed through the center of the circular protrusion 7c1.

[0083] A large and long rectangular slot 7c3 is formed in the center of the support plate 7c through which the cooling liquid r flows (see Figure 3 ). In addition, the shape is not limited to a rectangle.

[0084] The support plate 7c is formed from sheet metal using, for example, a stainless steel plate with a titanium layer formed on its surface. Furthermore, the support plate 7c may be a rust-proofed ordinary steel plate (SS400), a general structural rolled steel plate (SPHC, etc.), or other metal plate. Furthermore, the support plate 7c may be made of any material other than metal plate, such as a glass fiber or carbon fiber reinforced plastic plate, as long as it meets specified requirements such as strength, rust resistance, weather resistance, and resistance to degradation over time.

[0085] <Double seal gasket 7a>

[0086] Figure 4A 、 Figure 4B The double sealing gasket 7a shown is provided on both surfaces of the support plate 7c. Specifically, the double sealing gasket 7a is provided on one surface of the support plate 7c and on the other surface of the support plate 7c.

[0087] The double sealing gasket 7a includes a first sealing gasket 7a1 and a second sealing gasket 7a2.

[0088] The double sealing gasket 7a is bonded to one surface and the other surface of the support plate 7c by vulcanization.

[0089] like Figure 4B As shown, the first sealing gasket 7a1 has a rectangular cross section and is formed into a ring shape so as to surround the long hole 7c3 of the support plate 7c (see Figure 4A ).

[0090] The second sealing gasket 7a2 has a rectangular cross section and is formed in an annular shape outside the first sealing gasket 7a1 so as to surround the first sealing gasket 7a1.

[0091] In this manner, the double sealing gasket 7a is formed in duplicate outside the long hole 7c3 of the support plate 7c.

[0092] Figure 3 The bolt 5b shown is screwed to the threaded portion 5m of the VCU housing 5, thereby pressing and fixing the double sealing gaskets 7a provided on one and the other surfaces of the support plate 7c by the VCU housing 5 and the electrical component body 6h. By pressing, the double sealing gaskets 7a on one and the other surfaces of the support plate 7c are elastically deformed and come into close contact with the VCU housing 5 and the electrical component body 6h. The close contact of the double sealing gaskets 7a reliably prevents the cooling liquid r (see Figure 3 ) leakage.

[0093] <Vibration-isolating rubber 7b>

[0094] Figure 4A 、 Figure 4B The vibration-isolating rubber 7 b shown in the figure damps the vibration so as not to transmit the vibration of the VCU casing 5 to the electric components 6 , thereby isolating the vibration.

[0095] The vibration-isolating rubber 7b includes a first vibration-isolating rubber 7b1 and a second vibration-isolating rubber 7b2.

[0096] The first vibration-isolating rubber 7b1 is provided on one surface of the support plate 7c, and the second vibration-isolating rubber 7b2 is provided on the other surface of the support plate 7c.

[0097] A first center hole 7b13 and a second center hole 7b23 having substantially the same size as the circular hole 7c2 of the circular protrusion 7c1 are formed through the first and second vibration-isolating rubbers 7b1 and 7b2, respectively.

[0098] The first vibration-isolating rubber 7b1 includes a rubber portion 7b11 and a spacer portion 7b12.

[0099] The rubber portion 7b11 is formed from a material, such as rubber, that has a vibration-damping effect. Specifically, the rubber portion 7b11 has a spring constant and internal resistance, which dampens vibrations due to energy loss and internal friction. For example, natural rubber, butyl rubber, silicone rubber, etc. are used for the rubber portion 7b11. However, the rubber portion 7b11 may be made of other materials as long as it has a vibration-damping effect and meets specified requirements such as wear resistance, weather resistance, and resistance to aging (deterioration).

[0100] The gasket portion 7b12 is formed of ordinary steel plate (SS400) after rust prevention treatment, general structural rolled steel plate (SPHC, etc.), stainless steel plate (SUS), etc. In addition, the gasket portion 7b12 can also be made of other materials as long as it meets the requirements of specified strength, wear resistance, rust resistance, etc.

[0101] The second vibration-isolating rubber 7b2 includes a rubber portion 7b21 and a spacer portion 7b22.

[0102] The rubber portion 7b21 is formed of the same material as the above-mentioned rubber portion 7b11.

[0103] The spacer portion 7b22 is formed of the same material as the spacer portion 7b12 described above.

[0104] As mentioned above, Figure 4A 、 Figure 4B The double sealing packing 7a and the vibration-isolating rubber 7b (7b1, 7b2) shown are configured to be integrally bonded to one surface and the other surface of the support plate 7c by vulcanization.

[0105] Effects

[0106] According to the above, the liquid leakage suppression and vibration member 7 play a role in making the cooling liquid flow path 5a (see Figure 3 The cooling liquid r directly contacts the electrical components 6, cooling them. The liquid leakage and vibration suppression component 7 is formed by vulcanizing and bonding a double sealing gasket 7a and a vibration-isolating rubber 7b to both sides of a support plate 7c, which forms a sandwich structure with the double sealing gasket 7a and the vibration-isolating rubber 7b. This makes it easy to manufacture.

[0107] Furthermore, during assembly, only the single liquid leakage and vibration suppression component 7 needs to be handled, making assembly easier. This reduces the number of components and facilitates manufacturing. Furthermore, workability during assembly of the electrical component 6 can be improved, thus achieving a highly productive configuration.

[0108] Furthermore, on the basis of the vibration-proof effect achieved by the double sealing gasket 7a, the cooling liquid r in the cooling liquid flow path 5a is directly in contact with the electrical component body 6h for cooling, and the deformation of the double sealing gasket 7a caused by water pressure can be suppressed by the single liquid leakage and vibration suppression member 7 having a sandwich structure. Figure 4A 、 Figure 4B The double sealing gasket 7a shown is a double structure. Even if the first sealing gasket 7a1 leaks, the second sealing gasket 7a2 can reliably suppress the leakage of the cooling liquid r. Therefore, it is possible to improve Figure 3 The mass of the electrical component body 6h that needs to be vibration-proofed and cooled is shown.

[0109] Furthermore, in the first embodiment, a double sealing gasket 7a having two layers is exemplified, but a multi-sealing gasket having three or more layers may also be used.

[0110] <<Second embodiment>>

[0111] The liquid leakage suppression and vibration member 27 of the second embodiment is different from the liquid leakage suppression and vibration member 7 of the first embodiment which is fixed integrally, and has an assembled structure.

[0112] Since other components are not changed, the same components are denoted by the same reference numerals and redundant descriptions are omitted.

[0113] Figure 6A This is a diagram showing the liquid leakage and vibration suppression member 27 according to the second embodiment as viewed from one side. Figure 6B yes Figure 6A A partial enlarged view of the II-II section.

[0114] Figure 7 This shows the process of assembling the components 27 to suppress liquid leakage and vibration. Figure 6A A partial enlarged view of section II.

[0115] exist Figure 6A 、 Figure 6B In the second embodiment shown, double sealing packings 27a are arranged on one surface and the other surface of a support plate 27c, respectively. The double sealing packings 27a are arranged so as to be continuous in an annular shape so as to surround a long hole 27c3 in the center.

[0116] Specifically, a first annular sealing gasket 27a1 is disposed on one surface of the support plate 27c around the central elongated hole 27c3. A plurality of first positioning projections t1 of the first sealing gasket 27a1 are formed on one surface of the support plate 27c by drawing (see FIG. Figure 6BThe first positioning protrusion t1 facilitates positioning of the first sealing gasket 27a1 in the support plate 27c.

[0117] Furthermore, a second sealing gasket 27a2 formed continuously in an annular shape is arranged outside the first sealing gasket 27a1 on the support plate 27c. Here, a plurality of second positioning protrusions t2 for the second sealing gasket 27a2 are formed on one surface of the support plate 27c by drawing (see FIG. Figure 6B The second positioning protrusion t2 facilitates positioning of the second sealing gasket 27a2 in the support plate 27c.

[0118] Similarly, an annular first sealing gasket 27a1 and an annular second sealing gasket 27a2 are arranged so as to surround the long hole 27c3 on the other surface of the support plate 27c.

[0119] The first sealing gasket 27a1 is positioned relative to the support plate 27c by a first positioning protrusion t1 formed on the other surface of the support plate 27c. Furthermore, the second sealing gasket 27a2 is positioned relative to the support plate 27c by a second positioning protrusion t2 formed on the other surface of the support plate 27c.

[0120] Figure 6A The support plate 27 c shown has circular protrusions 27 c 1 formed at four corners, respectively, and a circular hole 27 c 2 is formed through the center of the circular protrusion 27 c 1 .

[0121] A first vibration-isolating rubber 27b1 is provided on one surface of the circular protrusion 27c1, and a second vibration-isolating rubber 27b2 is provided on the other surface of the circular protrusion 27c1.

[0122] The first vibration-isolating rubber 27b1 is provided with a first center hole 27b13 at the center.

[0123] The second vibration-isolating rubber 27b2 is provided with a second center hole 27b23 at the center.

[0124] like Figure 6B As shown, a first vibration-isolating rubber 27b1 is arranged on one surface of the support plate 27c so that the first center hole 27b13 is roughly aligned with the circular hole 27c2 of the support plate 27c. Here, a first rubber positioning protrusion b1 is formed on one surface of the four circular protrusions 27c1 by burring and stretching. In addition, a recessed portion 27b11 for the first rubber positioning protrusion b1 is provided in the first vibration-isolating rubber 27b1 (see FIG. 2 ). Figure 6B 、 Figure 7 ). Thus, the first rubber positioning protrusion b1 is formed on the bolt 5b (see Figure 3) outside, the first rubber positioning protrusion b1 will not become an obstacle to the bolt 5b. Figure 7 、 Figure 6B As shown, the first rubber positioning protrusions b1 facilitate the installation of the four first vibration-isolating rubbers 27b1 on one surface of the support plate 27c.

[0125] Similarly, a second vibration-isolating rubber 27b2 is arranged on the other side of the support plate 27c so that the second center hole 27b23 is roughly aligned with the circular hole 27c2 of the support plate 27c. Here, a second rubber positioning protrusion t3 for the second vibration-isolating rubber 27b2 is formed on the other side of the four circular protrusions 27c1 by burring and stretching. Figure 7 、 Figure 6B As shown, the second rubber positioning protrusion t3 makes it easy to set the four second vibration-isolating rubbers 27b2 to the other surface of the support plate 27c. Figure 6B 、 Figure 7 , the first vibration-isolating rubber 27b1 is shown positioned by the first rubber positioning protrusion b1 formed by the burring process, and the second vibration-isolating rubber 27b2 is shown positioned by the second rubber positioning protrusion t3 formed by the drawing process.

[0126] Furthermore, the first vibration-isolating rubber 27b1 and the second vibration-isolating rubber 27b2 may be positioned by positioning protrusions formed by drawing or by positioning protrusions formed by burring, and the form of the positioning component can be arbitrarily selected.

[0127] Application of Industrial Adhesives and Industrial Double-Sided Tapes

[0128] Alternatively, industrial adhesive or industrial double-sided tape may be applied to the surface of the double sealing gasket 7a facing the support plate 27c, or / and the surface of the double sealing gasket 27a facing the support plate 27c, so that the double sealing gasket 27a is set on one surface and the other surface of the support plate 27c.

[0129] Similarly, an industrial adhesive (adhesive) or industrial double-sided tape (double-sided tape) may be applied to the surfaces of the first and second vibration-isolating rubbers 27b1, 27b2 facing the support plate 27c, or / and to the surfaces of the support plate 27c facing the first and second vibration-isolating rubbers 27b1, 27b2, so that the first and second vibration-isolating rubbers 7b1, 7b2 are attached to one and the other surfaces of the support plate 27c. Applying the industrial adhesive (adhesive) or industrial double-sided tape (double-sided tape) reliably secures the double sealing gasket 27a and the first and second vibration-isolating rubbers 7b1, 7b2 to the support plate 27c. This facilitates assembly and improves workability.

[0130] Effects

[0131] According to the above, similarly to the first embodiment, the liquid leakage is suppressed and the vibration member 27 has an anti-vibration effect, even if the cooling liquid r (see Figure 3 ) directly contacts and cools the electrical component body 6h, and can also suppress the leakage of the cooling liquid r. In addition, even in assembly, as long as the liquid leakage suppression and vibration component 27 are assembled, the assembly is easy and the workability can be improved.

[0132] Furthermore, in addition to the vibration-proof effect achieved by the double sealing gasket 27a, the cooling liquid flow path 5a (see Figure 3 ) cooling liquid r directly contacts the electrical component body 6h and is cooled, and the deformation of the double sealing gasket 27a caused by water pressure can be suppressed by setting the liquid leakage and vibration suppression component 27 as a sandwich structure. Figure 6A 、 Figure 6B The double sealing gasket 27a shown has a double structure, and can reliably suppress leakage of the cooling liquid.

[0133] <<Other Implementation Methods>>

[0134] 1. In the above embodiment, the electrical component 6 is applied to the vehicle 1 . However, the electrical component 6 can also be effectively applied to any equipment other than the vehicle 1 , such as ships, construction machinery, working machinery, general machinery, aircraft, and flying vehicles.

[0135] 2. The present invention is not limited to the configurations of the first and second embodiments described above, and can be variously modified and implemented within the scope of the appended claims.

Claims

1. An electrical component, characterized in that have: an electrical component body, which accommodates the electrical element therein and is provided with a first through hole for fixing; a plate member having a second through hole disposed opposite to the first through hole and a cooling hole for allowing a cooling liquid to flow; a vibration-isolating rubber member surrounding the second through-hole of the plate member and disposed on one surface and the other surface of the plate member, and having a third through-hole facing the second through-hole; and a gasket arranged in duplicate or more on one surface and the other surface of the plate member in a state of surrounding the cooling hole; The electrical component body, the plate member, the vibration-isolating rubber, and the gasket are fixed to the housing. At least a portion of the bottom surface of the electrical component body is in contact with the cooling liquid flowing in the cooling liquid flow path of the housing.

2. The electrical component according to claim 1, wherein The first through hole is provided in a flat portion of the bottom surface of the electrical component body.

3. The electrical component according to claim 1, wherein The vibration-isolating rubber and the pad are fixed to the plate member and integrally formed.

4. The electrical component according to claim 3, wherein The vibration-isolating rubber and the gasket are bonded to the plate member by vulcanization.

5. The electrical component according to claim 3, wherein The vibration-isolating rubber and the gasket are attached to the plate member via an adhesive or a double-sided tape.

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