JP2003156152A - Seal structure for high pressure electrical box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal structure for a high pressure electrical box which prevents a noise occurred by a vibration at a low cost. SOLUTION: The high pressure electrical box has an opening 102 in which an intrusion member 104 is intruded from the outside to the inside. A non-woven fabric sheet 109 formed with a slit 108 enabling an intrusion of the intrusion member 104 is stuck so as to cover the opening 102.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a high-voltage electrical equipment box capable of performing sealing at low cost.

[0002]

2. Description of the Related Art For example, in a high-voltage electrical equipment box having a built-in electrical component that easily generates heat, such as a battery or a control device in an electric vehicle or a hybrid vehicle, heat is released to the outside by passing air inside the box. A cooling structure to prevent it is adopted. As this type of cooling structure, for example, an air intake port is provided on one side of the high-voltage electrical equipment box and an air exhaust port is provided on the other side, and a fan is attached to the air exhaust port to force air from inside the high-voltage electrical equipment box. In some cases, the air is taken in from the air inlet into the high-voltage electrical equipment box and passed through the high-voltage electrical equipment box and discharged from the air outlet.

In the cooling structure as described above, it is necessary to prevent air from entering from a portion other than the air intake in order to efficiently cool the electric components. That is, if air enters from a portion other than the air intake, the flow rate of air in the upstream portion will decrease, so that the cooling efficiency of the electrical components arranged in this upstream portion will decrease. It will fall. Therefore, in a high-voltage electrical equipment box having an opening through which the entrance member enters from the outside, it is necessary to close the opening in the state where the entrance member enters, and unless a dedicated seal member made of rubber or the like is manufactured. I won't.

[0004]

However, in order to close the opening in the state in which the entrance member has entered as described above,
Manufacturing a dedicated seal member made of rubber or the like has a problem of increasing cost. Moreover, although it is effective to narrow the opening and reduce the gap between the entrance member and the entrance member, noise may be generated from the contact portion between the entrance member and the electrical equipment box opening due to vibration or the like. .

Therefore, the present invention is low cost,
Moreover, it is an object of the present invention to provide a seal structure for a high-voltage electrical equipment box capable of preventing abnormal noise caused by vibration.

[0006]

In order to achieve the above object, in the seal structure for a high voltage electrical equipment box according to claim 1 of the present invention, an entrance member (for example, the seat hook 104 in the embodiment) is provided from the outside to the inside. A non-woven fabric having a slit structure (for example, the slit 108 in the embodiment) which is a seal structure of a high-voltage electrical equipment box having an opening (for example, the opening portion 102 in the embodiment) to enter, and which allows the entrance member to enter. A sheet (for example, the non-woven fabric sheet 109 in the embodiment) is attached to the high-voltage equipment box (for example, the high-voltage equipment box 70 in the embodiment) so as to cover the opening.

As described above, since the non-woven fabric sheet having the slits for allowing the entrance member to enter is attached to the high-voltage packaging box so as to cover the opening, the cost can be reduced. Moreover, since the opening can be widened and the gap between the entry member and the entry member can be increased, contact between the entry member and the electrical equipment box opening can be prevented, and contact between the entry member and the non-woven sheet due to vibration or the like. The non-woven fabric sheet can be easily deformed even if the portion is rubbed. In addition, since the non-woven fabric sheet is easily deformed, the non-woven fabric sheet is deformed so as to fit the shape of the opening in the state in which the entry member has entered, and the sealing property can be secured. Furthermore, since the non-woven fabric sheet is attached to the high-voltage packaging box so as to cover the opening, the mounting work is easy.

According to a second aspect of the present invention, there is provided a seal structure for a high-voltage electrical equipment box according to the first aspect, wherein the slit has one basic line (for example, the basic line 114 in the embodiment) and the basic line. It is characterized in that it is constituted by end lines (for example, the end line 115 in the embodiment) formed at both ends of the line so as to intersect the basic line.

As described above, since the slit is composed of one basic line and end lines formed at both ends of the basic line so as to intersect the basic line, breakage or the like is prevented. The entry member can be entered without occurring.

According to a third aspect of the present invention, there is provided a seal structure for a high-voltage electrical equipment box according to the first aspect, wherein the high-voltage electrical equipment box cools the inside by passing air inside. It has a feature.

As described above, since the high-voltage electrical equipment box cools the inside by passing the air inside, the efficiency of cooling the inside can be improved by ensuring the sealing property.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A seal structure for a high-voltage packaging box according to an embodiment of the present invention will be described below with reference to the drawings.
The seal structure of the high-voltage electrical equipment box of the present embodiment (hereinafter simply referred to as a seal structure) is applied to a high-voltage electrical equipment cooling device for an automobile. The vehicle in this embodiment is a hybrid vehicle. In this hybrid vehicle, when an electric power is supplied from the battery of the DC power source to the motor, the inverter converts DC into AC, and the output of the engine or the kinetic energy of the vehicle is reduced. When a unit is charged in a battery via a motor, an inverter converts AC into DC and charges the battery. Further, since the DC voltage converted by the inverter is high voltage, a part of the DC voltage is stepped down by the DC / DC converter. And the high-voltage electrical equipment cooling device uses these batteries, inverters, D
It cools the C / DC converter.

An outline of a high-voltage electrical equipment cooling device 1 to which the seal structure of this embodiment is applied will be described with reference to FIG. The high-voltage electrical cooling device 1 includes an intake duct 10, a battery box 20, a heat sink case 30, an exhaust duct 40, an exterior box 50, and a fan 60. The battery box 20, the heat sink case 30, and the exterior box 50 together form a high-voltage electrical equipment box 70.
Is configured. The intake duct 10 has a cooling air inlet 11 which is opened and closed by a shutter 13. The battery box 20 has a box shape, and its upper opening 21 is connected to the lower opening 12 of the intake duct 10. A battery (not shown in FIG. 1) is mounted inside the battery box 20, and cooling air can flow therethrough. The heat sink case 30 also has a box shape, and its upper opening 32b is connected to the lower opening 42 of the exhaust duct 40. A heat sink is provided inside the heat sink case 30 and cooling air can flow therethrough, and an inverter and a DC / DC converter (both not shown in FIG. 1) are provided on the outer surface of the heat sink case 30.
Is installed.

The battery box 20, the heat sink case 30, the inverter and the DC / DC converter are surrounded by an exterior box 50.
The outer box 50 is a closed box having openings 53 and 54 in the upper part, and one opening 53 is connected to a connecting portion between the lower opening 12 of the intake duct 10 and the upper opening 21 of the battery box 20 in a sealed state. , The other opening 54 and the lower opening 42 of the exhaust duct 40 and the heat sink case 3
0 is connected to the upper opening 32b in a sealed state. Further, the inner space of the exterior box 50 communicates the lower opening 22 of the battery box 20 with the lower opening 32c of the heat sink case 30.

The exhaust duct 40 has a cooling air outlet 41, and the cooling air outlet 41 is provided with a fan 60. Further, the fan 60 and the shutter 13 operate in conjunction with each other. When the fan 60 is rotated, the shutter 13 is opened, and when the fan 60 is stopped, the shutter 13 is opened.
Is supposed to close.

The high-voltage electrical equipment cooling device 1 thus constructed.
Then, when the fan 60 is rotated, the shutter 13 opens,
Cooling air is introduced into the intake duct 10 from the cooling air inlet 11. The cooling air introduced into the intake duct 10 is discharged from the intake duct 10 through the battery box 20 into the exterior box 50. Then, the cooling air exchanges heat with the battery when passing through the battery box 20, and as a result, the battery is cooled and the temperature of the cooling air rises slightly and is discharged into the outer box 50. Since the control temperature of the battery is low,
Even if the temperature of the cooling air rises due to the cooling of the battery, the temperature is sufficiently low to cool the inverter and the DC / DC converter.

The cooling air discharged into the exterior box 50 is introduced into the heat sink case 30 because the exterior box 50 is a closed box. That is, the inside of the exterior box 50 serves as a cooling air passage 57 that guides the cooling air after cooling the battery to the inverter. The cooling air introduced into the heat sink case 30 passes through the heat sink case 30 and the exhaust duct 40.
To the fan 6 via the cooling air outlet 41.
It is sucked to 0 and discharged to the outside. Then, the cooling air exchanges heat with the heat sink when passing through the heat sink case 30. Since the heat of the inverter and the DC / DC converter is transferred to the heat sink via the heat sink case 30, the inverter and the DC / DC converter are cooled by the heat exchange between the cooling air and the heat sink.

Next, referring to FIGS. 2 to 10,
The high-voltage electrical equipment cooling device to which the seal structure of this embodiment is applied will be described more specifically.

As shown in FIGS. 7 and 9, the high-voltage electrical equipment cooling device 1 includes a rear seat 2 and a luggage compartment 3 of an automobile.
Is installed between the rear seat 2 and the rear seat 2, and is installed so as to be inclined slightly rearward along the rear surface of the rear seat 2. The high-voltage electrical equipment cooling device 1 includes an intake duct 10 and a battery box 20.
The heat sink case 30, the exhaust duct 40, the exterior box 50, and the fan 60.

The intake duct 10 is made of lightweight polypropylene having high heat insulation and the like. 2 and 7
As shown in FIG. 3, the intake duct 10 is provided with a cooling air inlet 11 at the upper end and a lower opening 12 which is horizontally longer and has a larger opening area than the cooling air inlet 11. The cooling air inlet 11 of the intake duct 10 is connected to an intake grill 4b installed in the opening 4a through an opening 4a formed in the rear tray 4 of the automobile. The intake grill 4b is provided with a large number of intake ports 4c on the upper surface and side surfaces of the portion exposed to the inside of the vehicle, and when an object is placed on the intake grill 4b and the upper intake port 4c is closed. However, the vehicle interior air can be introduced into the intake duct 10 from the side intake port 4c.

A shutter 13 is installed inside the intake duct 10 and near the cooling air inlet 11. The shutter 13 made of EPDM rubber or the like is rotatably installed with its upper part as a fulcrum, and normally hangs down by its own weight, and as shown by a solid line in FIG. 7, a shutter 14 is provided in the middle of the intake duct 10. Seat and block the cooling air flow path. Then, when a negative pressure is generated on the downstream side of the shutter 13, the shutter 13 rotates upward and separates from the valve seat 14 to open the cooling air flow path.

As shown in FIGS. 2, 6 and 9, the exhaust duct 40 is provided with a cooling air outlet 41 at the upper rear and two lower openings 42 at the lower end. A fan 60 for discharging the cooling air in the exhaust duct 40 is installed at the cooling air outlet 41, and the cooling air discharged from the exhaust port 61 of the fan 60 is discharged to the trunk room 3 through a duct (not shown). It

The intake duct 10 and the exhaust duct 40
Is the battery box 20 and the heat sink case 30.
And the exterior box 50. The battery box 20 is made of a lightweight and highly rigid material such as FRP (resin), and has a box shape having a plurality of upper and lower openings 21 and 22 as shown in FIGS. 3 and 7. ing. The internal space 23 of the battery box 20 serves as a passage through which cooling air flows, and also serves as a storage space in which a large number of batteries 5 are mounted. Cooling air is supplied from the upper opening 21 to the internal space 23 of the battery box 20. It flows into the inside, passes between the batteries 5, exchanges heat with the battery 5 at this time, and then is discharged from the lower opening 22 to the outside of the battery box 20.

A pair of left and right fixing bosses 2 are provided on the upper front side and the lower rear side of the battery box 20, respectively.
4, 25 are projected. Top two fixing bosses 2
As shown in FIGS. 7 and 8, the members 4 and 24 are fixed to the rear tray 4 and its reinforcing member 4d with bolts 26a. On the other hand, the two lower fixing bosses 25, 25 are shown in FIG.
As shown in FIG. 7 and FIG. 7, the bolts 26b are fixed to the pipe frame 6a installed in the trunk room 3 along the width direction of the vehicle body. Pipe frame 6a
Is fixed by being bridged between a pair of side frames 6b, 6b fixed to the left and right of the vehicle body floor 6 in the trunk room 3, and is arranged slightly above the vehicle body floor 6. As a result, the battery box 20 is firmly supported by fixing the upper two front portions and the lower rear two portions to the vehicle body.

The heat sink case 30 is made of a lightweight and highly rigid material such as magnesium.
As shown in FIGS. 9 and 10, two box-shaped cylindrical bodies 32, 32 extending vertically are arranged in parallel on the left and right sides, and a main body 31 is integrally connected. The rear surface of the main body portion 31 is arranged substantially flush with the rear surface of the battery box 20. Mounting arms 33 extend forward from both ends on the front side of the upper portion of the main body 31, and the tips of the mounting arms 33 are bent upward to form fixing flanges 34. The front surface of the fixing flange 34 is substantially flush with the front surface of the upper fixing boss 24 in the battery box 20, and the fixing flange 34 is
The bolts 3 are attached to the above-mentioned rear tray 4 and its reinforcing member 4a.
It is fixed at 5a. Further, fixing bosses 36 are provided at both ends on the lower rear side of the main body 31, and the fixing bosses 36 are fixed to the pipe frame 6a by the bolts 35b. As a result, the heat sink case 30 is firmly supported by fixing the upper two front portions and the lower rear two portions to the vehicle body.

The internal space 32a of each cylindrical body 32 is a passage through which cooling air flows. Further, in the internal space 32a of each cylindrical body 32, a large number of heat sinks (heat sinks) 37 standing upright from the inner wall surface of the heat transfer pedestal 38 and extending in the vertical direction are provided. Further, a heat transfer pedestal 38 projects from the front outer surface of the main body 31 on which the heat dissipation plate 37 of each cylinder 32 is installed, and the heat transfer pedestal 38 has a main body. An attachment tray 39 that covers substantially the front side of 31 is fixed. The upper end of the mounting tray 39 is the arm 3
3 is arranged inside, and the lower end extends below the main body 31.

As shown in FIGS. 3 and 5, the inverter 7 is mounted on the mounting tray 39.
The DC / DC converter 8 steps down the voltage converted from AC to DC by the inverter 7. In FIG. 9, reference numeral 7 a is a hood attached to the inverter 7 and covering the inverter 7. The periphery of the hood 7a is fitted to the outside of the mounting tray 39, and the inverter 7 is surrounded by the mounting tray 39 and the hood 7a. The DC / DC converter 8 is also provided with a hood having the same function and structure. In the heat sink case 30 configured as above, the inverter 7
The heat generated by the DC / DC converter 8 is transferred to the heat dissipation plate 37 via the heat transfer base 38. And the cylindrical body 3
Heat is exchanged between the cooling air flowing through the second internal space 32a and the heat dissipation plate 37.

The outer box 50 is made of a thin metal and has a box shape, and the battery box 20, the heat sink case 30, the inverter 7, the DC / DC converter 8, the ECU and the like are housed therein. The outer box 50 is
As shown in FIG. 2, a box-shaped main body 51 having an opening on the front side and a cover plate 52 for closing the front side opening of the main body 51.
It consists of and. An opening 53 having the same shape and size as the upper opening 21 is formed on the upper surface of the main body portion 51 at a position corresponding to the upper opening 21 of the battery box 20 (see FIG. 8), and each tubular body 32 in the heat sink case 30 is formed. At the position corresponding to the upper opening 32b of
An opening 54 having the same shape and size as b is formed (FIG. 10).
reference).

As shown in FIG. 10, the peripheral edge of the opening 54 in the exterior box 50 is placed on the peripheral edge of the upper opening 32b of the cylindrical body 32 in the heat sink case 30 with the sealing material 55a interposed therebetween. Exterior box 5
The peripheral edge of the lower opening 42 of the exhaust duct 40 is placed on the peripheral edge of the opening 54 at 0 with the sealing material 55b interposed therebetween, and the exhaust duct 40 is fastened to the main body portion 51 with the bolt 43. , Heat sink case 30
The upper opening 32b, the opening 54 of the exterior box 50, and the lower opening 42 of the exhaust duct 40 are connected in a sealed state.

On the other hand, as shown in FIG. 8, on the periphery of the upper opening 21 of the battery box 20, a sealing material 55c is sandwiched and an opening 53 of the outer box 50 is formed.
The peripheral edge of the lower opening 12 of the intake duct 10 is placed on the peripheral edge of the opening 53 of the exterior box 50 with the sealing material 55d interposed therebetween. The upper opening 21 of the battery box 20 and the opening 5 of the outer box 50 are fixed to the box 20 by fixing means (not shown).
3 and the lower opening 12 of the intake duct 10 are connected in a sealed state.

Further, a flange portion 51a is provided on the peripheral edge of the opening on the front side of the outer box 50, and the peripheral edge portion of the cover plate 52 is fixed to the flange portion 51a with screws 56. The flange portion 51a is arranged substantially flush with the front surface of the upper fixing boss 24 of the battery box 20 and the front surface of the fixing flange 34 of the mounting arm 33 of the heat sink case 30. Is provided with a notch so as to avoid interference with the fixing boss 24 and the fixing flange 34.

Inside the outer box 50, the lower end of the battery box 20 is separated from the bottom of the inner surface of the outer box 50 (see FIG. 7), and the lower end of the mounting tray 39 installed in the heat sink case 30 and the heat sink case 30. The lower end of the body 31 of the exterior box 50
Is separated from the bottom of the inner surface (see FIG. 9). The inside of the sealed outer box 50 is a cooling air passage 57 that connects the lower opening 22 of the battery box 20 and the lower opening 32c of the cylindrical body 32 of the heat sink case 30.

As shown in FIGS. 7 and 9, the outer box 50 includes a fastening portion between the fixing boss 25 on the lower side of the battery box 20 and the pipe frame 6a, and a fixing boss for the heat sink case 30. At the fastening portion between the pipe 36 and the pipe frame 6a, they are sandwiched and fastened together. Further, the lower flange portion 51a and the cover plate 52 of the exterior box 50 are fixed to a support frame 6c installed on the vehicle body floor 6 along the width direction by bolts 6d. In addition, in this embodiment, the battery box 20, the heat sink case 30, and the exterior box 50 constitute a high-voltage packaging box 70.

The high-voltage electrical cooling device 1 thus configured.
In the above, when the fan 60 is rotated, the inside of the intake duct 10 has a negative pressure, so that the shutter 13 rotates upward and is separated from the valve seat 14, and the flow path of the cooling air is opened. As a result, the air in the vehicle compartment flows into the intake duct 10 as cooling air from the intake port 4c of the intake grill 4b, and further, from the lower opening 12 of the intake duct 10 to the upper opening 21 of the battery box 20 of the battery box 20. It flows into the internal space 23, flows between the batteries 5 in the internal space 23, and flows downward. At this time, the air in the vehicle compartment (hereinafter, referred to as cooling air) flowing through the internal space 23 is the battery 5
Heat exchange with, as a result, the battery 5 is cooled,
The cooling air is heated and its temperature rises slightly. However, since the control temperature of the battery 5 is low, even if the temperature of the cooling air rises due to heat exchange with the battery 5, the temperature rise width is small and the temperature is sufficiently low to cool the inverter 7 and the DC / DC converter 8. Is. The cooling air that has cooled the battery 5 is discharged into the exterior box 50 through the lower opening 22 of the battery box 20.

Since the outer box 50 is hermetically sealed and the only flow path through which air can flow out is the internal space 32a of both the cylindrical bodies 32 of the heat sink case 30, the cooling air discharged from the battery box 20 to the outer box 50 is described. Passes through the cooling air passage 57 and flows into the internal space 32a of the tubular body 32 from the lower openings 32c of the tubular bodies 32, and rises in the internal space 32a through the space between the heat radiating plates 37. At this time, the cooling air flowing through the internal space 32a exchanges heat with the heat radiating plate 37. As a result, the heat radiating plate 37 is cooled and the cooling air is heated and its temperature rises. By the way, both cylinders 32
The heat generated in the inverter 7 and the DC / DC converter 8 is transferred to the heat sink 37 inside the heat sink 37.
By cooling the inverter 7 and the DC / DC
The converter 8 will be cooled.

The cooling air whose temperature has risen due to the heat exchange with the heat radiating plate 37 is discharged into the exhaust duct 40 from the upper openings 32b of the cylindrical bodies 32 of the heat sink case 30 through the lower openings 42 of the exhaust duct 40. In addition, the cooling air outlet 41 of the exhaust duct 40 to the fan 60
Is sucked into. Thereafter, the cooling air is supplied from the exhaust port 61 of the fan 60 to the trunk room 3 through a duct (not shown).
Is discharged inside.

Next, the seal structure of this embodiment will be described with reference to FIGS. As shown in FIG. 11, the seal structure of the present embodiment has an exterior box 5 that constitutes the high-voltage electrical equipment box 70 of the high-voltage electrical equipment cooling device 1 described above.
The opening 102 formed in the upper plate portion 101 of No. 0 is sealed.

Here, the upper plate portion 1 of the exterior box 50
The opening 102 formed at 01 is shown in FIGS.
As shown in FIG. 5, the seat hook (entry member) 104 protruding downward from the rear seat 2 is formed to enter from the outside of the exterior box 50 to the inside.
A plurality of seat hooks 104 of the rear seat 2 are provided to be engaged with holes (not shown) formed in the rear tray 4 and the like, but in the present embodiment, the rear seat 2 is commonly used in vehicles of different models. Due to this, one of the plurality of seat hooks 104 interferes with the exterior box 50, and the opening 102 is formed to avoid this.

This seat hook 104 is used for the rear seat 2
U-shape having a pair of projecting portions 105 projecting downward from the rear surface of the vehicle and spaced apart from each other in the vehicle body left-right direction, and a connecting portion 106 that connects the tip ends of these projecting portions 105 along the vehicle body left-right direction. The overall shape is such that it has a width in the left-right direction of the vehicle body. In accordance with this, the opening 1 of the exterior box 50 that allows this to enter
02 also has a substantially rectangular shape with a wide width in the left-right direction of the vehicle body.

The seal structure of this embodiment is shown in FIG.
As shown in FIG. 4, a nonwoven fabric sheet 109 having slits 108 that allow the sheet hooks 104 to enter is attached to the outer box 50 so as to cover the opening 102.

Before being attached, the above-mentioned non-woven fabric sheet 109 has a non-woven fabric body 110, an adhesive layer 111 formed on one surface of the non-woven fabric body 110, and the non-woven fabric body 110 of the adhesive layer 111, as shown in FIG. On the other hand, it has a backing paper 112 attached on the opposite side, and as shown by an arrow in FIG. 15, the backing paper 112 is attached to the exterior box 50 on the adhesive layer 111 in a state where the backing paper 112 is peeled off from the adhesive layer 111. It is a thing.

The nonwoven fabric sheet 109 has a rectangular shape which is slightly larger than the opening 102, and the slit 108 that allows the sheet hook 104 to enter the inner portion thereof.
Is formed, and the longitudinal direction thereof is aligned with the longitudinal direction of the opening portion 102, and the opening portion 102 is attached over the entire circumference of the outer box 50 at a predetermined position.

With this attached state, the nonwoven fabric sheet 109
Will be further explained. Slit 10 of the non-woven sheet 109
As shown in FIG. 14, reference numeral 8 denotes one basic line 114 that extends linearly in the vehicle body left-right direction in accordance with the seat hook 104 having a width in the vehicle body left-right direction, and both end portions of the basic line 114. And an end line 115 formed so as to intersect with the basic line 114, respectively. Here, each of the end lines 115 has a pair of linear slant lines 116 that are inclined with line symmetry with respect to the basic line 114 so as to be more distant from each other with increasing distance from the basic line 114. I am in a shape. The slit 108 is arranged at a predetermined position in the opening 102 in the horizontal direction. The length of the basic line 114 is set so that both projecting portions 105 of the seat hook 104 are located at both ends of the basic line 114.

When such a non-woven fabric sheet 109 is attached to a predetermined position of the upper plate portion 101 of the exterior box 50 in the adhesive layer 111 so as to cover the opening 102 with the backing paper 112 peeled off, the rear sheet 2 is attached. At this time, the seat hook 104 of the rear seat 2 passes through the slit 108 of the non-woven fabric sheet 109 while opening the slit 108 and through the opening 102, and the exterior box 50.
Will enter inside. At this time, the non-woven sheet 109 enters the space between the protrusions 105 and closes the slit 108 by the restoring force after the connecting portion 106 of the sheet hook 104 has passed.

According to the seal structure of the present embodiment described above, the opening 102 is formed in the non-woven fabric sheet 109 having the slit 108 which allows the sheet hook 104 to enter.
Since it is affixed to the exterior box 50 so as to cover, the cost can be reduced. Moreover, since the opening 102 can be widened and the gap between the seat hook 104 and the seat hook 104 can be increased, the seat hook 104 and the opening 1
It is possible to prevent contact between the non-woven fabric sheet 02 and the non-woven fabric sheet 02, and the non-woven fabric sheet 109 can be easily deformed even if the contact portion between the sheet hook 104 and the non-woven fabric sheet 109 rubs due to vibration or the like. In addition, since the non-woven fabric sheet 109 is easily deformed, the non-woven fabric sheet 109 is deformed so as to match the shape of the opening 102 in the state where the sheet hook 104 enters, so that the sealing property can be secured. Further, since the non-woven sheet 109 is attached to the outer box 50 so as to cover the opening 102, the mounting work is easy.

Since the slit 108 is composed of one basic line 114 and end lines 115 formed at both ends of the basic line 114 so as to intersect with the basic line 114, respectively. Nonwoven sheet 10
The seat hook 104 can be entered without tearing the sheet 9 or the like.

Moreover, since the inside is cooled by passing air through the inside of the exterior box 50, the non-woven fabric sheet 109 ensures the sealing property.
The internal cooling efficiency can be improved.

The shape of the slit 108 of the non-woven fabric sheet 109 in the above embodiment is not limited to the above, and various shapes can be adopted. For example, if the line is only linear like the above,
Preferably at least three lines are formed, as shown in FIG.
As shown in FIG. 6, the slit 108 has one basic line 114 and end lines 118 formed at both ends of the basic line 114 at right angles to the basic line 114. Is also possible.
Further, the basic line 114 and the end line 118 are not limited to the linear shape, but may be arcuate shapes as shown in FIG.

Further, as shown in FIG. 18, the slit 10
Reference numeral 8 indicates one basic line 114 and circular hole portions 11 formed at both ends of the basic line 114.
It is also possible to have 9 and 9. However, in this case, since the positioning of the hole 119 is complicated, in this respect, the end line 115 is formed at both ends of the one basic line 114 described above, and both ends of the one basic line 114 are formed. It is preferable to form the end line 118.

Further, as shown in FIG. 19, the slit 1
As 08, it is also possible to form the two basic lines 120 in an intersecting state and omit the end lines. However, in this case, since the nonwoven fabric body 110 is easily broken when the backing paper is peeled off, in this respect, one end line 115 is formed at both ends of the one basic line 114 described above, and one basic line 114 is formed. It is preferable to form the end lines 118 at both ends of the.

Further, as shown in FIG. 20, the slit 1
As 08, it is also possible to form only one basic line 114. However, in this case, the seat hook 1
Since the non-woven fabric body 110 is easily broken when 04 is entered, in this respect, the end line 115 is formed at both ends of the one basic line 114 described above, and the end line is formed at both ends of the one basic line 114. Those forming 118 are preferred.

Of course, the sealing structure of this embodiment can be used for sealing an opening for inserting an entrance member other than the seat hook.

[0053]

As described in detail above, the first aspect of the present invention
According to the seal structure of the high-voltage electrical equipment box described above, the cost is reduced because the non-woven fabric sheet having the slits that allow the entry member to enter is attached to the high-voltage electrical equipment box so as to cover the opening. can do. Moreover, since the opening can be widened and the gap between the entry member and the entry member can be increased, contact between the entry member and the electrical equipment box opening can be prevented, and contact between the entry member and the non-woven sheet due to vibration or the like. The non-woven fabric sheet can be easily deformed even if the portion is rubbed. In addition, since the non-woven fabric sheet is easily deformed, the non-woven fabric sheet is deformed so as to fit the shape of the opening in the state in which the entry member has entered, and the sealing property can be secured. Furthermore, since the non-woven fabric sheet is attached to the high-voltage packaging box so as to cover the opening, the mounting work is easy.

According to the seal structure for a high-voltage electrical equipment box according to claim 2 of the present invention, a slit is formed at one basic line and at both ends of this basic line so as to intersect the basic line. Since it is configured with the end line, the entry member can be entered without causing breakage or the like.

According to the seal structure of the high-voltage electrical equipment box according to the third aspect of the present invention, since the interior of the high-voltage electrical equipment box cools the inside by passing air therethrough, by ensuring the sealing performance, The internal cooling efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a high-voltage electrical equipment cooling device for an automobile to which a high-voltage electrical equipment box seal structure according to an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the high-voltage electrical equipment cooling device as seen from the front side of an automobile.

FIG. 3 is a cross-sectional view of the high-voltage electrical equipment cooling device.

FIG. 4 is a front view of the high-voltage electrical equipment cooling device as seen from the front side of the automobile.

FIG. 5 is a front view showing a front side of the automobile with a part of the high-voltage cooling device removed.

FIG. 6 is a rear view of the high-voltage electrical component cooling device as seen from the rear side of the automobile.

FIG. 7 is a vertical cross-sectional view of a battery housing portion of the high-voltage electrical equipment cooling device.

FIG. 8 is an enlarged view of a main part of FIG.

FIG. 9 is a vertical sectional view of an inverter accommodating portion of the high-voltage electrical equipment cooling device.

FIG. 10 is an enlarged view of a main part of FIG.

FIG. 11 is a view of the high-voltage electrical equipment cooling device seen from diagonally above.

FIG. 12 is a side sectional view showing a seal structure of the high-voltage electrical equipment box according to the embodiment of the present invention.

FIG. 13 is a front sectional view showing the seal structure of the high-voltage electrical equipment box according to the embodiment of the present invention.

FIG. 14 is a plan view showing a seal structure of a high-voltage electrical equipment box according to an embodiment of the present invention.

FIG. 15 is a side view showing a nonwoven fabric sheet having a seal structure for a high-voltage packaging box according to an embodiment of the present invention.

FIG. 16 is a plan view showing another example of the non-woven fabric sheet having the seal structure of the high-voltage packaging box according to the embodiment of the present invention.

FIG. 17 is a plan view showing still another example of the non-woven fabric sheet having the sealing structure of the high-voltage packaging box according to the embodiment of the present invention.

FIG. 18 is a plan view showing still another example of the non-woven fabric sheet having the seal structure of the high-voltage packaging box according to the embodiment of the present invention.

FIG. 19 is a plan view showing still another example of the non-woven fabric sheet having the seal structure of the high-voltage packaging box according to the embodiment of the present invention.

FIG. 20 is a plan view showing still another example of the non-woven fabric sheet having the seal structure of the high-voltage packaging box according to the embodiment of the present invention.

[Explanation of symbols]

70 High-voltage box 102 opening 104 Seat hook (entry member) 108 slits 109 Nonwoven sheet 114 basic lines 115 Edge line

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02G 3/38 H02G 3/28 FF term (reference) 3D035 AA01 AA03 3J040 BA01 FA18 HA03 5G361 AA06 AB09 AC01 AC04 AC10 AE01 5G363 AA01 BA02 CA14 CB01 DC02

Claims (3)

[Claims] 1. A seal structure for a high-voltage electrical equipment box having an opening through which an entry member enters from the outside, wherein the opening is covered with a non-woven fabric sheet having a slit that allows the entry member to enter. A seal structure for a high-voltage electrical equipment box, characterized in that it is attached to the high-voltage electrical equipment box as described above. 2. The slit has one basic line,
The seal structure for a high-voltage electrical equipment box according to claim 1, characterized in that the seal structure is provided with end lines formed at both ends of the basic line so as to intersect with the basic line. 3. The seal structure for a high-voltage electrical equipment box according to claim 1, wherein the high-voltage electrical equipment box cools the interior by passing air inside.