WO2022181639A1 - ルーバ及び充電装置 - Google Patents
ルーバ及び充電装置 Download PDFInfo
- Publication number
- WO2022181639A1 WO2022181639A1 PCT/JP2022/007389 JP2022007389W WO2022181639A1 WO 2022181639 A1 WO2022181639 A1 WO 2022181639A1 JP 2022007389 W JP2022007389 W JP 2022007389W WO 2022181639 A1 WO2022181639 A1 WO 2022181639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- louver
- slit
- rising
- charging device
- slits
- Prior art date
Links
- 230000000630 rising effect Effects 0.000 claims abstract description 75
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/16—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of parallelly-movable plates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
- H05K5/0214—Venting apertures; Constructional details thereof with means preventing penetration of rain water or dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/029—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0025—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using heat exchange fluid storage tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
Definitions
- the present disclosure relates to louvers and charging devices.
- Patent Document 1 discloses an example of a louver that prevents rainwater from entering the cabinet when the cabinet is installed outdoors, does not impair waterproof performance, and can improve ventilation performance.
- the louver is composed of two types, an inner louver and an outer louver.
- a charging device for charging a battery mounted on a work vehicle is installed outdoors or in a factory. Therefore, there is a possibility that liquid such as water or dust may enter the inside of the charging device.
- aspects of the present invention aim to improve waterproof performance.
- the first member has a lid portion provided with slits arranged at intervals, and a rising portion extending from the peripheral edge portion of the slits toward one side in the depth direction; and a second member having a lid portion provided with slits arranged in parallel with each other, and a rising portion extending from the peripheral edge portion of the slit toward the other in the depth direction, wherein the first member and the second member
- the louver is provided in which the rising portions are arranged to face each other in the extending direction, and the slits of the first member and the slits of the second member are arranged offset from each other.
- a charging device including the louver described above, and a charging device are provided.
- waterproof performance can be improved.
- FIG. 1 is a perspective view of a charging device having a louver according to this embodiment.
- FIG. 2 is a cross-sectional view schematically showing the inside of the charging device provided with the louver according to this embodiment.
- FIG. 3 is a perspective view of the louver according to the present embodiment as seen from above on the right front.
- FIG. 4 is a perspective view of the louver according to the present embodiment as viewed from above on the rear right.
- FIG. 5 is a front view of the louver according to this embodiment.
- FIG. 6 is a rear view of the louver according to this embodiment.
- FIG. 7 is a cross-sectional view of the louver according to the present embodiment, taken along line AA of FIG. 5. As shown in FIG. FIG. FIG.
- FIG. 8 is a partially enlarged cross-sectional view of the louver according to the present embodiment, and is a cross-sectional view seen from the upper right front side.
- FIG. 9 is a perspective view showing the first member.
- FIG. 10 is a perspective view showing the second member.
- FIG. 11 is a partially enlarged view of the louver.
- FIG. 12 is a schematic diagram illustrating noise leaking from the charging device to the outside.
- FIG. 13 is a schematic diagram illustrating interference of noise leaking from the charging device to the outside.
- FIG. 1 is a perspective view of a charging device 100 having a louver 1 according to this embodiment.
- FIG. 2 is a cross-sectional view schematically showing the interior of a charging device 100 having the louver 1 according to this embodiment. In FIG. 2, illustration of various members and devices arranged inside the charging device 100 is omitted.
- a charging device 100 shown in FIGS. 1 and 2 is charging equipment for charging a battery of a work vehicle (not shown).
- the charging device 100 is placed, for example, in a charging place such as outdoors or in a factory.
- the charging device 100 has a cable 101 for supplying power to a battery and a plug 102 arranged at the tip of the cable 101 .
- the plug 102 is pluggable into a work vehicle connector.
- a cap 102 ⁇ /b>C that covers the terminal portion is detachably arranged on the plug 102 .
- Charging device 100 is supplied with power from a power source connected via power cable 103 .
- the power supply is, for example, an AC power supply (commercial power supply).
- the charging device 100 takes in air from the outside of the housing 110 to the inside, and exhausts the cooled air to the outside.
- a louver 1 is arranged at the entrance/exit of external air in charging device 100 .
- the charging device 100 has a suction-side louver 1 arranged on the suction side of the charging device 100 and an exhaust-side louver 1 arranged on the exhaust side.
- the housing 110 is box-shaped.
- the housing 110 includes a wall portion 110a facing downward, a wall portion 110b facing the wall portion 110a, a wall portion 110c connecting the wall portion 110a and the wall portion 110b, a wall portion 110d, a wall portion 110e, and a wall portion 110f. have.
- the wall portion 110d faces the wall portion 110c.
- the wall portion 110e connects the wall portion 110c and the wall portion 110d.
- the wall portion 110f faces the wall portion 110e.
- the wall portion 110a, the wall portion 110b, the wall portion 110c, the wall portion 110d, the wall portion 110e, and the wall portion 110f are formed of a plate-shaped material.
- the housing 110 has an air intake port A1 formed on the air intake side and an exhaust port A2 formed on the air exhaust side.
- a louver 1 on the suction side is provided at the suction port A1.
- a louver 1 on the exhaust side is provided at the exhaust port A2.
- the wall portion 110c is provided with an air suction port A1.
- the suction port A ⁇ b>1 is an opening that introduces gas into the electrical component storage chamber 120 and the heat sink storage chamber 130 .
- the suction port A1 is covered with a louver 1 on the suction side.
- a suction filter (not shown) is arranged at the suction port A1. The suction filter prevents dust and the like from entering the housing 110 through the suction port A1.
- the wall portion 110d is provided with an air outlet A2.
- the exhaust port A2 is an opening through which gas is discharged from the electrical component storage chamber 120 and the heat sink storage chamber .
- the exhaust port A2 is covered with a louver 1 on the exhaust side.
- An exhaust filter (not shown) is arranged at the exhaust port A2. The exhaust filter prevents dust and the like from entering the housing 110 through the exhaust port A2.
- the suction port A1 and the exhaust port A2 are arranged at positions facing each other. As a result, the gas introduced into the heat sink 131 through the suction port A1 is efficiently discharged through the exhaust port A2.
- a suction fan 112 is provided at the suction port A1.
- the suction fan 112 introduces gas into the electrical component housing chamber 120 .
- the suction fan 112 sucks the gas from the electrical component storage chamber 120, thereby introducing the gas into the electrical component storage chamber 120 through the suction port A1 and discharging the gas from the exhaust port A2.
- An exhaust fan 113 is provided at the exhaust port A2.
- the exhaust fan 113 introduces gas into the heat sink housing chamber 130 .
- the exhaust fan 113 sucks the gas from the heat sink housing chamber 130, thereby introducing the gas into the heat sink housing chamber 130 through the suction port A1 and discharging the gas from the exhaust port A2.
- a bracket 111 is arranged inside the housing 110 .
- the space above the bracket 111 is the electrical component storage chamber 120 , and the space below the bracket 111 is the heat sink storage chamber 130 .
- Electrical components (not shown) are arranged in the electrical component storage chamber 120 .
- a heat sink 131 as a heat dissipation member is arranged in the heat sink housing chamber 130 .
- a suction fan 112 is arranged on the upstream side of the electrical component storage chamber 120 .
- a suction-side louver 1 is arranged outside the housing 110 so as to face the suction fan 112 .
- Some of the electrical components are arranged on the heat sink 131 .
- a duct 132 is connected to the downstream side of the heat sink 131 .
- An exhaust fan 113 is arranged downstream of the duct 132 .
- An exhaust-side louver 1 is arranged outside the housing 110 so as to face the exhaust fan 113 .
- the louver 1 is arranged at the inlet/outlet of the external air in the charging device 100 . More specifically, the suction side louver 1 is arranged at the suction port A1 of the charging device 100, and the exhaust side louver 1 is arranged at the discharge port A2.
- the intake-side louver 1 and the exhaust-side louver 1 are constructed in the same manner.
- the front-rear direction is the depth direction of the louver 1 .
- left and right refer to left and right with respect to the front.
- the horizontal direction is the lateral direction of the louver 1 .
- the upper side is the side perpendicular to the front-rear direction and the left-right direction and directed upward.
- the lower side is the side perpendicular to the front-rear direction and the left-right direction and directed downward.
- the vertical direction is the vertical direction of the louver 1 .
- the front-back axis is the X-axis
- the up-down axis is the Y-axis
- the left-right axis is the Z-axis.
- FIG. 3 is a perspective view of the louver according to the present embodiment as viewed from above on the right front.
- FIG. 4 is a perspective view of the louver according to the present embodiment as viewed from above on the rear right.
- FIG. 5 is a front view of the louver according to this embodiment.
- FIG. 6 is a rear view of the louver according to this embodiment.
- FIG. 7 is a cross-sectional view of the louver according to the present embodiment, taken along line AA of FIG. 5.
- FIG. FIG. 8 is a partially enlarged cross-sectional view of the louver according to the present embodiment, and is a cross-sectional view seen from the upper right front side.
- the louver 1 includes a first member 2 and a second member 3.
- the louver 1 has a first member 2 and a second member 3 that are integrally assembled.
- FIG. 9 is a perspective view showing the first member.
- the first member 2 has a body portion 21 , a lid portion 22 and a flange portion 23 .
- the body portion 21 is formed in a rectangular tube shape by a wall portion 21a, a wall portion 21b, a wall portion 21c, and a wall portion 21d.
- the wall portion 21b is arranged to face the wall portion 21a.
- Wall portion 21c connects wall portion 21a and wall portion 21b.
- the wall portion 21d is arranged to face the wall portion 21c.
- a lid portion 22 is arranged at the front end portion of the main body portion 21 in the depth direction.
- the lid portion 22 is formed of a plate-like member.
- the collar portion 23 is arranged at the rear end portion of the body portion 21 in the depth direction.
- the flange portion 23 spreads like a flange from the rear end portion of the main body portion 21 .
- the collar portion 23 is arranged to face the lid portion 22 .
- the flange portion 23 is formed in a rectangular frame shape.
- a rearward surface 23 ⁇ /b>F of collar 23 faces housing 110 of charging device 100 .
- the first member 2 has a lid portion 22 provided with slits 24 arranged at intervals, and a pair of rising portions 25 and 26 extending from the periphery of the slits 24 toward one side in the depth direction. .
- the slit 24 is formed in the lid portion 22 .
- the slit 24 extends longitudinally.
- a plurality of slits 24 are arranged side by side in the lateral direction of the lid portion 22 .
- six slits 24 are arranged.
- the width of the lid portion 22 located between the laterally adjacent slits 24 is defined as d11.
- d11 is, for example, 40 [mm].
- the width of the slit 24 is d12.
- d12 is, for example, 17.5 [mm].
- the rising portion 25 and the rising portion 26 are arranged to face each other with the slit 24 interposed therebetween.
- the rising portion 25 and the rising portion 26 are similarly configured.
- the rising portion 25 and the rising portion 26 are formed of a rectangular plate material.
- the rising portion 25 and the rising portion 26 stand vertically with respect to the lid portion 22 in the depth direction. As shown in FIG. 9, the rising portion 25 and the rising portion 26 connect the wall portion 21a and the wall portion 21b.
- Let d13 be the width in the depth direction of the rising portion 25 and the rising portion 26 shown in FIG. d13 is, for example, 15 [mm].
- the stepped portion 27 is arranged on the flange portion 23 of the first member 2, and is a sealing member (not shown) that seals between the housing 110 that is the mounting portion. engages.
- the stepped portion 27 is formed on a rearward facing surface 23 ⁇ /b>F of the collar portion 23 .
- the stepped portion 27 is formed stepwise on the rearward surface 23 ⁇ /b>F of the flange portion 23 .
- the stepped portion 27 can accommodate a sealing member.
- the sealing member accommodated in the stepped portion 27 seals the periphery of the louver 1 and the periphery of the inlet A1 and the outlet A2 of the housing 110 of the charging device 100 .
- the sealing member When the second member 3 is assembled to the first member 2 , the sealing member is pressed against the housing 110 of the charging device 100 to seal the peripheral portion of the second member 3 .
- the sealing member has a size and shape that closes a gap S (see FIG. 11), which will be described later.
- the first member 2 and the second member 3 are arranged facing each other.
- the second member 3 is assembled integrally with the first member 2 . More specifically, the second member 3 is assembled while being accommodated inside the body portion 21 of the first member 2 .
- FIG. 10 is a perspective view showing the second member.
- the second member 3 has a body portion 31 and a lid portion 32 .
- the main body portion 31 is formed in a rectangular tubular shape having an outer circumference smaller than the inner circumference of the main body portion 21 of the first member 2 .
- the body portion 31 is formed in a rectangular tube shape by a wall portion 31a, a wall portion 31b, a wall portion 31c, and a wall portion 31d.
- the wall portion 31b is arranged to face the wall portion 31a.
- the wall portion 31c connects the wall portion 31a and the wall portion 31b.
- the wall portion 31d is arranged to face the wall portion 31c.
- a lid portion 32 is arranged at the rear end portion of the body portion 31 in the depth direction.
- the lid portion 32 is formed of a plate-like member.
- the wall portion 31a faces the wall portion 21a
- the wall portion 31b faces the wall portion 21b
- the wall portion 31c faces the wall portion 21b
- the wall portion 31d faces the wall portion 21d.
- the second member 3 includes a cover portion 32 provided with slits 34 arranged at intervals, and a pair of rising portions 35 extending from the peripheral edge portion of the slits 34 toward the other in the depth direction. and a rising portion 36 .
- the slit 34 is formed in the lid portion 32 .
- the slit 34 extends longitudinally.
- a plurality of slits 34 are arranged side by side in the lateral direction of the lid portion 32 .
- five slits 34 are arranged.
- the slits 34 are arranged laterally offset from the slits 24 when the second member 3 is assembled to the first member 2 .
- the inside of the housing 110 cannot be seen when viewed from the outside of the housing 110.
- the lid portion 32 of the second member 3 exists behind the slit 24 when viewed from the front.
- the lid portion 22 of the first member 2 exists in front of the slit 34 when viewed from the rear.
- the width of the lid portion 32 located between the laterally adjacent slits 34 is d21.
- d21 is, for example, 40 [mm].
- d21 d11.
- the width of the slit 34 is d22.
- d22 is, for example, 17.5 [mm].
- d22 d12.
- the rising portion 35 and the rising portion 36 are arranged facing each other with the slit 34 interposed therebetween.
- the rising portion 35 and the rising portion 36 are similarly configured.
- the rising portion 35 and the rising portion 36 are formed of a rectangular plate material.
- the rising portion 35 and the rising portion 36 stand vertically with respect to the lid portion 32 in the depth direction. As shown in FIG. 10, the rising portion 35 and the rising portion 36 connect the wall portion 31a and the wall portion 31b.
- the first member 2 and the second member 3 are arranged facing each other in the direction in which the rising portions 25 and 26 and the rising portions 35 and 36 extend.
- the rising portions 25 and 26 of the first member 2 and the rising portions 35 and 36 of the second member 3 partially overlap in the depth direction.
- the second member 3 has four legs 37 and ten legs 38 .
- the leg portions 37 and 38 protrude further forward than the rising portions 35 and 36 .
- the legs 37 are erected from corners of the main body 31 .
- the leg portion 37 extends forward.
- the legs 38 are erected from the upper and lower ends of the slit 34 .
- the legs 38 extend forward.
- a front end portion of the leg portion 37 and a front end portion of the leg portion 38 contact the lid portion 22 of the main body portion 21 of the first member 2 .
- the second member 3 is positioned with respect to the first member 2 in the depth direction by the legs 37 and 38 .
- the rising portion 35 and the rising portion 36 are arranged apart from the lid portion 22 of the first member 2 . As a result, a gas flow path is formed between the lid portion 22, the rising portion 25, and the rising portion 26 of the first member 2 and the lid portion 32, the rising portion 35, and the rising portion 36 of the second member 3. .
- the width in the depth direction between the rear end of the rising portion 26 and the lid portion 32 is d31
- the width in the lateral direction between the rising portion 26 and the rising portion 36 is d32
- the rising portion The width in the depth direction between the front end portion of the portion 36 and the lid portion 22 is defined as d33.
- d31, d32 and d33 are preferably the same.
- FIG. 11 is a partially enlarged view of the louver. As shown in FIG. 11 , a gap S is formed between the lower end of the second member 3 and the first member 2 . More specifically, the upward facing surface 21aF of the wall portion 21a and the lower end portion of the lid portion 32 are not in close contact with each other, and a gap S is formed.
- Each member of the louver 1 configured in this manner is formed by resin molding.
- the suction fan 112 and the exhaust fan 113 are operated to draw air from the outside of the housing 110 into the interior through the louver 1 on the suction side, and the cooled air is discharged to the outside from the louver 1 on the exhaust side. More specifically, air is taken into the suction-side louver 1 from the slit 24 of the suction-side louver 1 of the charging device 100 .
- the air that has flowed in from the slit 24 passes through the flow path formed between the first member 2 and the second member 3, passes through the slit 34, passes through the suction port A1 of the housing 110, and flows inside. .
- the air that has flowed in flows into the electrical component storage chamber 120 and the heat sink storage chamber 130 .
- each arranged component is cooled. Then, the air that has cooled the inside of the housing 110 passes through the exhaust port A2 and is taken into the inside of the exhaust-side louver 1 from the slit 34 of the exhaust-side louver 1 . The air that has flowed in from the slit 34 passes through the flow path formed between the first member 2 and the second member 3 and is discharged from the slit 24 to the outside.
- the louver 1 has the lid portion 32 of the second member 3 behind the slit 24 and the lid portion 22 of the first member 2 ahead of the slit 34 . Therefore, liquid such as water is restricted from directly flowing into the housing 110 from the louver 1 .
- the sealing member accommodated in stepped portion 27 seals the peripheral portion of louver 1 and the peripheral portion of housing 110 of charging device 100 .
- the walls 21a and 31a are formed with an inclination from the rear to the front, in other words, from the inside to the outside as a draft angle during molding. As a result, water flows along the walls 21a and 31a and is discharged to the outside.
- FIG. 12 is a schematic diagram illustrating noise leaking from the charging device to the outside.
- FIG. 13 is a schematic diagram illustrating interference of noise leaking from the charging device to the outside.
- the charging device 100 generates high-frequency switching noise of the transformer during operation.
- FIG. 12 schematically shows the slit 24 of the louver 1 and the spread of sound leaking from the slit 24 when the charging device 100 is viewed from above. As shown in FIG. 12 , the sound inside charging device 100 spreads outward from each slit 24 .
- the slit width d11 is 17.5 [mm]
- the slit pitch is 64 [mm]
- the sound frequency is 100 [Hz]
- the distance L from the slit 24 is 3 [m].
- ⁇ is the wavelength of the sound
- dx is the horizontal distance of the charging device 100
- L is the distance in the direction away from the slit 24, and m is a natural number
- the sound is strengthened at the position where the following formula 1 holds.
- dx/L ⁇ /2 ⁇ 2m (1)
- dx/L ⁇ /2 ⁇ (2m+1) (2)
- the horizontal distance dx of the charging device 100 is plotted on the horizontal axis, and the wavelength of the sound is plotted on the vertical axis.
- the strength of the sound appeared at intervals of about 30 [cm] of dx. If the user finds the sound annoying, it is possible to improve the way the sound is heard by adjusting the angle of the charging device 100 .
- the slits 24 of the first member 2 and the slits 34 of the second member 3 are displaced from each other in the lateral direction.
- the lid portion 32 of the second member 3 exists behind the slit 24
- the lid portion 22 of the first member 2 exists in front of the slit 34 . According to this embodiment, visibility of the inside of the housing 110 can be restricted. According to this embodiment, it is possible to prevent water from entering the housing 110 through the louver 1 .
- the slits 24 of the first member 2 and the slits 34 of the second member 3 extend in the vertical direction.
- the water adhering to the lid portion 22 of the first member 2 flows down along the lid portion 22 as it is.
- water adhering to the lid portion 22 of the first member 2 can be restricted from entering the interior of the louver 1 .
- the rising portions 25 and 26 of the first member 2 and the rising portions 35 and 36 of the second member 3 partially overlap in the depth direction.
- the rising portions 35 and 36 of the second member 3 can prevent water that is blown obliquely into the slit 24 from entering the inside.
- This embodiment can secure a flow path for air drawn into the housing 110 and a flow path for air discharged to the outside of the housing 110 .
- the thickness of the louver 1 in the depth direction can be reduced.
- the first member 2 has a stepped portion 27 with which a sealing member that seals between the housing 110 of the charging device 100 and the first member 2 is engaged.
- the sealing member can seal the periphery of the louver 1 and the periphery of the housing 110 of the charging device 100 .
- a gap S is created between the lower end of the second member 3 and the first member 2 .
- the water adhering to the rising portion 25 and rising portion 26 of the first member 2 or the lid portion 32 of the second member 3 is absorbed by the draft angle of the wall portion 21a and the wall portion 31a and the sealing member. Thus, it can be discharged to the outside along the wall portion 21a and the wall portion 31a.
- the noise leaking from the slit 24 of the louver 1 during the operation of the charging device 100 can be heard louder at a certain place and attenuated at a certain place depending on the position of the user. or This embodiment can improve the way sound is heard, for example, by adjusting the angle of the charging device 100 .
- the present embodiment has been described above, the present embodiment is not limited by the content described above.
- the components described above include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that are within the so-called equivalent range.
- the components described above can be combined as appropriate.
- various omissions, replacements, or modifications of components can be made without departing from the gist of the present embodiment.
- the rising portions 25 and 26 of the first member 2 and the rising portions 35 and 36 of the second member 3 overlap in the depth direction, but they do not have to overlap.
- the rear ends of the rising portions 25 and 26 and the front ends of the rising portions 35 and 36 may be positioned at the same position in the depth direction.
- the rising portions 25 and 26 of the first member 2 and the rising portions 35 and 36 of the second member 3 are perpendicular to the lid portion 22 or the lid portion 32. Illustrated, but not limited to.
- the rising portion 25 and the rising portion 26 and the rising portion 35 and the rising portion 36 may not be perpendicular to the lid portion 22 or the lid portion 32 but may be inclined.
- the rising portion 25 and the rising portion 26, and the rising portion 35 and the rising portion 36 may be connected to the lid portion 22 or the lid portion 32 via curved portions.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
図1は、本実施形態に係るルーバ1を備えた充電装置100の斜視図である。図2は、本実施形態に係るルーバ1を備えた充電装置100の内部を模式的に示した断面図である。図2においては、充電装置100の内部に配置された各種部材及び装置などは図示を省略している。図1、図2に示す充電装置100は、図示しない作業車両のバッテリを充電する充電設備である。充電装置100は、例えば屋外又は工場などの充電場所に配置される。充電装置100は、バッテリに電力を供給するケーブル101と、ケーブル101の先端部に配置されたプラグ102とを有する。プラグ102は、作業車両のコネクタに差込可能である。プラグ102には、端子部を覆うキャップ102Cが着脱可能に配置される。充電装置100は、電源ケーブル103を介して接続された電源から電力が供給される。電源は、例えば、交流電源(商用電源)である。
図1、図2に示すように、ルーバ1は、充電装置100における外部の空気の出入り口に配置されている。より詳しくは、充電装置100の吸込口A1に吸込側のルーバ1が配置され、排気口A2に排気側のルーバ1が配置されている。吸込側のルーバ1と排気側のルーバ1とは同様に構成されている。
空気の流れについて説明する。吸込ファン112及び排気ファン113が作動して、吸込側のルーバ1から筐体110の外部から内部へ空気が取り込まれて、内部を冷却した空気が排気側のルーバ1から外部へ排気される。より詳しくは、充電装置100の吸込側のルーバ1のスリット24から、吸込側のルーバ1の内部へ空気が取り込まれる。スリット24から流入した空気は、第1部材2と第2部材3との間に形成された流路を通過して、スリット34から、筐体110の吸込口A1を通過して内部へ流入する。流入した空気は、電気部品収容室120及びヒートシンク収容室130へ流入する。空気が電気部品収容室120及びヒートシンク収容室130を通過する際に、配置された各部品が冷却される。そして、筐体110の内部を冷却した空気は、排気口A2を通過して排気側のルーバ1のスリット34から、排気側のルーバ1の内部へ取り込まれる。スリット34から流入した空気は、第1部材2と第2部材3との間に形成された流路を通過して、スリット24から外部へ空気が排出される。
dx/L=λ/2×2m・・・(1)
dx/L=λ/2×(2m+1)・・・(2)
以上説明したように、本実施形態では、第1部材2のスリット24と第2部材3のスリット34とは、横方向において互いにずれて配置されている。本実施形態では、スリット24の後方に第2部材3の蓋部32が存在し、スリット34の前方に第1部材2の蓋部22が存在する。本実施形態によれば、筐体110の内部が見えることを規制できる。本実施形態によれば、水がルーバ1から筐体110の内部へ侵入することを規制できる。
Claims (8)
- 間隔を空けて配置されたスリットが設けられた蓋部と、前記スリットの周縁部から奥行き方向の一方に向かって延びる立ち上がり部と、を有する第1部材と、
間隔を空けて配置されたスリットが設けられた蓋部と、前記スリットの周縁部から奥行き方向の他方に向かって延びる立ち上がり部と、を有する第2部材と、
を備え、
前記第1部材と前記第2部材とは、立ち上がり部が延びる方向に互いに向かい合って配置され、
前記第1部材の前記スリットと前記第2部材の前記スリットとは、互いにずれて配置されている、
ルーバ。 - 前記第1部材の前記立ち上がり部は、前記第1部材の前記スリットを挟んで一対として向かい合って配置され、
前記第2部材の前記立ち上がり部は、前記第2部材の前記スリットを挟んで一対として向かい合って配置されている、
請求項1に記載のルーバ。 - 前記第1部材の前記スリット及び前記第2部材の前記スリットは、縦方向に延びている、
請求項1または2に記載のルーバ。 - 前記第1部材の前記立ち上がり部及び前記第2部材の前記立ち上がり部は、奥行き方向において一部が重なっている、
請求項3に記載のルーバ。 - 前記第1部材の外周部に配置され、被取付部との間を封止する封止部材が係合する段差部、
を備える、請求項1から請求項4のいずれか一項に記載のルーバ。 - 前記第2部材の下端部は、前記第1部材との間に隙間を生じる、
請求項5に記載のルーバ。 - 請求項1から請求項6のいずれか一項に記載のルーバ、を備える充電装置。
- 高周波のスイッチングノイズが発生するトランス、を備える請求項7に記載の充電装置。
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JP2023502457A JPWO2022181639A1 (ja) | 2021-02-26 | 2022-02-22 | |
US18/273,793 US20240110722A1 (en) | 2021-02-26 | 2022-02-22 | Louver and charging device |
CN202280016608.6A CN116889111A (zh) | 2021-02-26 | 2022-02-22 | 格栅及充电装置 |
DE112022000371.5T DE112022000371T5 (de) | 2021-02-26 | 2022-02-22 | Lüftungsgitter und ladevorrichtung |
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JP2021-030745 | 2021-02-26 | ||
JP2021030745 | 2021-02-26 |
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WO2022181639A1 true WO2022181639A1 (ja) | 2022-09-01 |
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PCT/JP2022/007389 WO2022181639A1 (ja) | 2021-02-26 | 2022-02-22 | ルーバ及び充電装置 |
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US (1) | US20240110722A1 (ja) |
JP (1) | JPWO2022181639A1 (ja) |
CN (1) | CN116889111A (ja) |
DE (1) | DE112022000371T5 (ja) |
WO (1) | WO2022181639A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005309277A (ja) * | 2004-04-26 | 2005-11-04 | Matsushita Electric Ind Co Ltd | 表示装置 |
JP2005308976A (ja) * | 2004-04-20 | 2005-11-04 | Sasakura Engineering Co Ltd | 消音ルーバー |
US20150016053A1 (en) * | 2013-07-12 | 2015-01-15 | Diehl Aerospace Gmbh | Housing for at least one electric or electronic device, and electric or electronic device comprising the housing |
WO2017073201A1 (ja) * | 2015-10-28 | 2017-05-04 | ソニー株式会社 | 電子機器ケース、及びこれを備えた電池パック |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007173330A (ja) | 2005-12-19 | 2007-07-05 | Kawamura Electric Inc | ルーバー |
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2022
- 2022-02-22 WO PCT/JP2022/007389 patent/WO2022181639A1/ja active Application Filing
- 2022-02-22 US US18/273,793 patent/US20240110722A1/en active Pending
- 2022-02-22 DE DE112022000371.5T patent/DE112022000371T5/de active Pending
- 2022-02-22 CN CN202280016608.6A patent/CN116889111A/zh active Pending
- 2022-02-22 JP JP2023502457A patent/JPWO2022181639A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005308976A (ja) * | 2004-04-20 | 2005-11-04 | Sasakura Engineering Co Ltd | 消音ルーバー |
JP2005309277A (ja) * | 2004-04-26 | 2005-11-04 | Matsushita Electric Ind Co Ltd | 表示装置 |
US20150016053A1 (en) * | 2013-07-12 | 2015-01-15 | Diehl Aerospace Gmbh | Housing for at least one electric or electronic device, and electric or electronic device comprising the housing |
WO2017073201A1 (ja) * | 2015-10-28 | 2017-05-04 | ソニー株式会社 | 電子機器ケース、及びこれを備えた電池パック |
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JPWO2022181639A1 (ja) | 2022-09-01 |
CN116889111A (zh) | 2023-10-13 |
US20240110722A1 (en) | 2024-04-04 |
DE112022000371T5 (de) | 2023-10-26 |
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