CN107270739A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN107270739A CN107270739A CN201710183672.4A CN201710183672A CN107270739A CN 107270739 A CN107270739 A CN 107270739A CN 201710183672 A CN201710183672 A CN 201710183672A CN 107270739 A CN107270739 A CN 107270739A
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- China
- Prior art keywords
- motor
- inverter
- heat exchanger
- fan
- inverter case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 claims description 33
- 239000011810 insulating material Substances 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 description 61
- 238000010586 diagram Methods 0.000 description 15
- 239000007921 spray Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 241000283086 Equidae Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
- F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention provides heat exchanger, and the flowing for the air that without prejudice to is produced by the rotation of fan can be with simple structure by motor, inverter and inverter control unit blocking.Heat exchanger possesses the fan assembly (1) for importing air towards the heat exchanger body (3) that heat exchange is carried out between liquid-to-air.Fan assembly (1) possess motor (7), be fixed on motor (7) rotary shaft (6) fan (5), speed change can be carried out to motor (7) inverter (8), via inverter (8) action of motor (7) is controlled inverter control unit (51), store the motor shell (53) of motor (7) and the inverter case (54) of storage inverter (8) and inverter control unit (51).Inverter case (54) is integrated as a motor control housing (17) with motor shell (53).
Description
Technical field
The present invention relates to heat exchanger, more particularly to the air-cooled type or water-cooled heat of cooling tower or radiator etc. are handed over
Parallel operation.
Background technology
In the past, cooled down for the liquid (for example, cooling water) to being used in air-conditioning equipment, plant equipment etc.
Cooling system uses the heat exchanger of cooling tower or radiator etc..Such heat exchanger have heat exchanger body, towards this
Heat exchanger body imports the ingress pipe of liquid, the drainpipe of liquid is discharged from heat exchanger body and for towards heat exchange
The inside of device main body imports the fan assembly of extraneous air.Fan assembly has motor and linked with the rotary shaft of the motor
Fan, by using motor make fan rotate and towards heat exchanger body inside import air.Heat is directed into from ingress pipe
The liquid of exchanger main body with being directed into the air progress heat exchange of the heat exchanger body by being cooled.Liquid after cooling
Body is discharged from heat exchanger body by drainpipe.The inside of delivery heat exchanger main body and with liquid carry out heat exchange after sky
Gas is discharged by fan assembly from heat exchanger body.
It is known have possess with can to motor carry out speed change inverter fan assembly heat exchanger (referring for example to
Patent document 1).The heat exchanger has the inverter control unit being controlled via inverter to the action of motor, the inversion
Device control unit is connected with inverter.Inverter is controlled by inverter control unit, inverter can wish motor
The rotary speed of prestige is rotated, therefore heat exchanger being capable of effectively cooling liquid.
The temperature that is, outlet temperature of the liquid in draining Bottomhole pressure are measured in addition, heat exchanger generally has
Temperature sensor and measured value based on outlet temperature by the control signal of the action of motor (for example, the starting of motor is believed
Number or stop signal or the rotary speed of motor command value etc.) temperature control part that is exported towards inverter control unit.Temperature
Degree control unit is connected via signal cable with inverter control unit, and the control signal exported from temperature control part is inputted to inverter
Control unit.Inverter control unit is based on the control signal to the action of motor (for example, the starting or stopping of motor, or motor
Rotary speed) be controlled.
Patent document 1：Japanese Unexamined Patent Application Publication 2011-517758 publications
In conventional heat exchanger, it is generally the case that inverter and inverter control unit are accommodated in be separated with motor
The control panel of ground configuration.For example, the control panel for being accommodated with inverter and inverter control unit is arranged at heat exchanger body
Sideways, or it is arranged at the position separated with heat exchanger body.
Temperature control part can also be accommodated in the control panel for being accommodated with inverter and inverter control unit.But, temperature
Control unit is spent there is also the temperature controlled situation for carrying out the equipment with cooling system integrally beyond related, heat exchanger, because
This, polygamy is placed in the control panels different from the control panel for storing inverter and inverter control unit.Thus, handed in conventional heat
In parallel operation, because of inverter, inverter control unit and temperature control part the need for, and prepare independent or multiple control panels, and
And cause matching somebody with somebody between distribution and/or temperature control part and inverter control unit between motor and inverter control unit
Line is elongated.As a result, the manufacturing cost for being configured with the cooling system entirety of heat exchanger is uprised.And then, if motor and inverter
The distribution between distribution and/or temperature control part and inverter control unit between control unit is elongated, then electrical noise increases
Plus, the peripheral equipment of temperature control part, inverter control unit and these control units is made a very bad impression.Accordingly, it is desirable to will
The heat exchanger of motor, inverter and inverter control unit blocking.In particular, preferably not only by motor, inverter and
Inverter control unit blocking, and by the heat exchanger of temperature control part blocking.
Rotated by the fan of fan assembly, direct the air into the inside of heat exchanger body, by fan assembly towards heat
The outside discharge of exchanger main body.Be accommodated with inverter and inverter control unit control panel (or, be accommodated with inversion
The control panel of device, inverter control unit and temperature control part) be installed on store motor motor shell side in the case of,
The flowing of the air produced by the rotation of fan collides with control panel, hinders the smoothly flowing of air.As a result, it is empty
The flow resistance increase of gas, the consumption electric power increase of heat exchanger.
The content of the invention
Therefore, a kind of flowing of the air produced it is an object of the invention to provide without prejudice to by the rotation of fan,
And can be with simple structure by the heat exchanger of motor, inverter and inverter control unit blocking.
The mode of the present invention provides a kind of heat exchanger, possesses and heat exchange is carried out between liquid-to-air for court
Heat exchanger body imports the fan assembly of air, it is characterised in that said fans device possesses：Motor；Fan, is fixed on
State the rotary shaft of motor；Inverter, can carry out speed change to said motor；Inverter control unit, via above-mentioned inverter to upper
The action for stating motor is controlled；Motor shell, stores said motor；And inverter case, store above-mentioned inverter and
Above-mentioned inverter control unit, above-mentioned inverter case and said motor housing is integrated as a motor control housing.
The preferred embodiment of the present invention is characterised by that above-mentioned heat exchanger is also equipped with：Discharge pipe, from above-mentioned heat exchanger master
Body discharges aforesaid liquid；Temperature sensor, is carried out to the temperature of aforesaid liquid that is, outlet temperature flowed in above-mentioned discharge pipe
Determine；And temperature control part, the measured value based on above-mentioned outlet temperature is by the control signal of the action of said motor towards above-mentioned
Inverter control unit is exported, and said temperature control unit is incorporated in above-mentioned inverter case.
The present invention preferred embodiment be characterised by, said fans, said motor housing and above-mentioned inverter case edge
Vertical arrangement, said motor housing is located between above-mentioned inverter case and said fans.
The preferred embodiment of the present invention is characterised by that above-mentioned inverter case is located at the upside of said motor housing, above-mentioned
Fan is located at the downside of said motor housing.
The present invention preferred embodiment be characterised by, said fans have be fixed on said motor rotary shaft propeller boss,
And the multiple fins extended radially from above-mentioned propeller boss, the width of the width of said motor housing and above-mentioned inverter case
Spend below the width for above-mentioned propeller boss.
The preferred embodiment of the present invention is characterised by, the width of above-mentioned inverter case for said motor housing width with
Under.
The preferred embodiment of the present invention is characterised by that above-mentioned heat exchanger is also equipped with sunshading board, and the sunshading board is configured at
State the top of inverter case.
The preferred embodiment of the present invention is characterised by that above-mentioned heat exchanger is also equipped with heat-insulating material, and the heat-insulating material is installed
In the upper surface of the upper wall of above-mentioned inverter case.
In accordance with the invention it is possible to cause the flowing of air that is produced by the rotation of fan hardly with motor shell
The mode collided with the motor control housing of inverter case integration constitutes motor control housing, therefore, will not
Hinder the flowing of the air by fan assembly.Thus, air can move smoothly through fan assembly.And then, can be to cause
The rotary shaft that the motor of fan is extended to from the motor for being accommodated in motor shell does not constitute motor by way of inverter case
Housing is controlled, it is therefore not necessary to make the inverter case with complicated structure.Thus, it is possible to simple structure by motor, inverse
Become device and inverter control unit blocking.In particular, in the case where temperature control part is accommodated in inverter case, it is more than
Motor, inverter and inverter control unit blocking, additionally it is possible to by temperature control part blocking.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment of the cooling tower for being shown as heat exchanger.
Fig. 2 is the schematic diagram of another embodiment for the cooling tower for being shown as heat exchanger.
Fig. 3 (a) is the schematic diagram of an embodiment of the cooling tower for being shown as heat exchanger, and Fig. 3 (b) is shown in figure
The schematic diagram of the sinuous cooling tube formed in the inner space of framework shown in 3 (a).
Fig. 4 is the sectional view of the fan assembly involved by an embodiment.
Fig. 5 is the schematic diagram of the fan assembly shown in Fig. 4.
Fig. 6 is the schematic diagram of the fan assembly involved by another embodiment.
Fig. 7 is the schematic diagram of the fan assembly involved by a further embodiment.
Fig. 8 is the schematic diagram of the fan assembly involved by a further embodiment.
Fig. 9 is the schematic diagram of the fan assembly involved by a further embodiment.
Wherein, description of reference numerals is as follows：
1：Fan assembly；2：Packing material；3：Cooling tower main body；5：Fan；6：Rotary shaft；7：Motor；8：Inverter；
10：Ingress pipe；11：Drainpipe；12：Tank；14：Fin；15：Shutter；16：Propeller boss；17：Motor control housing；18：Fan
Housing；19：Temperature sensor；20：Coil pipe；22：Spray line；25：Spray drainpipe；27：Motor chamber；28：Inverter room；29：
Spaced walls；30：Cooling tube；32：Radiator body；33：Framework；35：Upside bearing；36：Lower side bearing；40：Lid；41：Permanent magnetism
Body；42：Power supply cable；43：Rotor；44：Stator；45：Signal cable；46：Motor cable；50：Power component；51：Inverter
Control unit；52：Temperature control part；53：Motor shell；54：Inverter case；70：Shaft seal；80：Sunshading board；81：Rib；
85：Heat-insulating material.
Embodiment
Hereinafter, embodiments of the present invention are illustrated referring to the drawings.
Fig. 1 is the schematic diagram of an embodiment of the cooling tower for being shown as heat exchanger.Cooling tower shown in Fig. 1 possesses
Cooling tower main body (heat exchanger body) 3, be configured at cooling tower main body 3 inside packing material 2 and be installed on cooling tower
The fan assembly 1 on the top of main body 3.The detailed construction of fan assembly 1 will be described further below.Make to be configured at when using motor 7
When fan 5 in the blower-casting 18 of fan assembly 1 rotates, air is by being arranged at the shutter of the side of cooling tower main body 3
15 import cooling tower main body 3.The air for being directed into cooling tower main body 3 is discharged by fan assembly 1 from cooling tower.
Cooling tower has the ingress pipe 10 that insertion cooling tower main body 3 extends, and liquid (such as cooling water) is passed through into the importing
Pipe 10 imports cooling tower main body 3.The discharge port 10a positioned at the top of packing material 2 is formed with the end of ingress pipe 10, by liquid
Body is released to packing material 2 from discharge port 10a.The liquid for being discarded to packing material 2 falls in the internal flow of packing material 2
Under, the air contact with being directed into cooling tower main body 3 using fan assembly 1.Thus, hot friendship is carried out between liquid-to-air
Change, by liquid cooling.
Liquid after cooling is collected into the tank 12 for the bottom for being arranged at cooling tower main body 3, is connected from the tank 12
Drainpipe 11 discharged towards the outside of cooling tower main body 3.The liquid to the flowing in the drainpipe 11 is installed in drainpipe 11
Temperature that is, the temperature sensor 19 that is measured of outlet temperature.Cooling tower shown in Fig. 1 is that liquid is directly cooled down by air
Water-cooled heat exchanger, referred to as open cooling tower.
Fig. 2 is the schematic diagram of another embodiment for the cooling tower for being shown as heat exchanger.The sheet being not specifically noted
The structure of embodiment is identical with the structure of the cooling tower shown in Fig. 1, therefore omits the explanation repeated to it.
One end of the coil pipe 20 of inside of the ingress pipe 10 of cooling tower shown in Fig. 2 with being configured at cooling tower main body 3 is connected,
The drainpipe 11 that liquid is discharged from cooling tower main body 3 is connected with the other end of coil pipe 20.In the present embodiment, in drainpipe
11 are provided with the temperature sensor 19 being measured to the outlet temperature of liquid.Liquid from ingress pipe 10 flow into coil pipe 20, and from
Coil pipe 20 flows out towards drainpipe 11.And then, there is the spray line 22 for being used for that water to be sprayed on to coil pipe 20 in the cooling tower.Spray line
22 extend to the top of coil pipe 20 from the outside of cooling tower, and the sprinkling mouthful 22a of spray water is formed with the end of spray line 22.From
The water of the sprinkling mouth 22a sprinklings of spray line 22 is contacted with the surface of coil pipe 20, and thus the liquid with the flowing in the coil pipe 20 enters
Row heat exchange.Cooled down thereby, it is possible to the liquid to the flowing in coil pipe 20.
The water sprayed from the sprinkling mouth 22a of spray line 22 is cold by the air that cooling tower main body 3 is directed into using fan assembly 1
But.Contacted with coil pipe 20 and flow the water fallen and be collected into tank 12, and from the sprinkling drainpipe being connected with the tank 12
25 discharge towards the outside of cooling tower.Cooling tower shown in Fig. 2 is the liquid of the flowing in coil pipe 20 by being sprayed from spray line 22
The water-cooled heat exchanger of water cooling, referred to as closed cooling tower.
Fig. 3 (a) is the schematic diagram of an embodiment of the radiator for being shown as heat exchanger, and Fig. 3 (b) is shown in figure
The schematic diagram of the sinuous cooling tube formed in the inner space of framework shown in 3 (a).Radiator shown in Fig. 3 (a) possesses radiating
Device main body (heat exchanger body) 32 and the framework 33 for being provided with the cooling tube 30 flowed for liquid.
As shown in Fig. 3 (b), one end of cooling tube 30 is connected with importing the ingress pipe 10 of liquid towards radiator body 32, cold
But the other end of pipe 30 is connected with discharging the drainpipe 11 of liquid from radiator body 32.In the present embodiment, in drainpipe
11 are provided with the temperature sensor 19 being measured to the outlet temperature of liquid.Cooling tube 30 is with the straight sections of the cooling tube 30
The mode that 30a extends along vertical is wriggled in the inner space of framework 33 to be formed.Cooling tube 30 can also be with the cooling
The mode that the straight sections 30a of pipe 30 extends along horizontal direction is wriggled in the inner space of framework 33 to be formed.Framework 33 is embedding
Enter to the opening for the side for being formed at radiator body 32 and be fixed on radiator body 32.The framework 33 of cooling tube 33 is installed
The opening of the upper surface for being formed at radiator body 32 or lower surface can also be embedded in, but this is unillustrated.
When the fan 5 for being made fan assembly 1 using motor 7 is rotated, between the cooling tube 30 for formation of wriggling
Gap directs the air into radiator body 32.Fin (not shown) is usually mounted with cooling tube 30, is flowed in cooling tube 30
Liquid heat transfer to fin.In the cooling tube 30 of radiator the liquid of flowing via cooling tube 30 and fin with
The air that the inside of radiator body 32 is directed into using fan assembly 1 carries out heat exchange.Thus, it will be flowed in cooling tube 30
Liquid cooling.Radiator shown in Fig. 3 is the liquid of the flowing in cooling tube 30 by the heat exchange of air cooled air-cooled type
Device.
Fig. 4 is the sectional view of the fan assembly 1 involved by an embodiment.In Fig. 4, the figure of blower-casting 18 is eliminated
Show.The fan assembly 1 is arranged at the heat exchanger of the radiator shown in cooling tower or Fig. 3 shown in Fig. 1 or Fig. 2 etc..Wind
Fan device 1 possesses fan 5, the motor 7 for making the fan 5 rotation, the inverter 8 of speed change can be carried out to motor 7 and via inverse
Become the inverter control unit 51 that action of the device 8 to motor 7 is controlled.Fan 5 has propeller boss 16 and is in put from the propeller boss 16
Penetrate multiple fins 14 of shape extension.The propeller boss 16 of fan 5 is fixed on the end of the rotary shaft 6 of motor 7, thus fan 5 and motor 7
Directly link.And then, fan assembly 1 has temperature control part 52, and the temperature control part 52 is exported based on temperature sensor 19
The measured value of outlet temperature is by the control signal of the action of motor 7 (for example, the start signal or stop signal of motor 7, or horse
Command value up to 7 rotary speed etc.) exported towards inverter control unit 51.
Inverter control unit 51 is configured on inverter substrate 8a, and composition inverter 8 is configured with inverter substrate 8a
Power component (for example, IGBT etc. switch element) 50 etc..In one embodiment, can also by inverter control unit 51 from
The configured separate of inverter 8.Switch motion of the inverter control unit 51 to the power component 50 of inverter 8 is controlled, thus right
The rotary speed of motor 7, the i.e. rotary speed of fan 5 are controlled.
Temperature sensor 19 is connected via signal cable 45 with temperature control part 52, the outlet that temperature sensor 19 is exported
The measured value of temperature is inputted to temperature control part 52 via signal cable 45.Inverter control unit 51 is based on from temperature control part 52
The control signal of output to the action of motor 7 (that is, the starting or stopping of motor 7, or motor 7 rotary speed) controlled
System.Temperature control part 52 preselects the cranking temperature for starting motor 7 that is stored with, makes the measured value of outlet temperature convergent defined
Target temperature and the stopping temperature for stopping motor 7.Temperature control part 52 is higher than cranking temperature in the measured value of outlet temperature
In the case of, by start signal (control signal) output of motor 7 to inverter control unit 51, thus, inverter control unit 51
Motor 7 is started via inverter 8.
After the starting of motor 7, temperature control part 52 is by for making the measured value of outlet temperature consistent with target temperature
The command value (control signal) of the rotary speed of motor 7 is exported to inverter control unit 51.Temperature control part 52 has not shown
Arithmetic unit (such as CPU), the arithmetic unit motor 7 consistent with target temperature to the measured value for making outlet temperature
The command value of rotary speed carries out computing.Receive the command value of the rotary speed of the motor 7 exported from temperature control part 52
Inverter control unit 51 is controlled based on the command value to inverter 8, the rotary speed of motor 7 is increased or is reduced.Enter
And, temperature control part 52 is in the case where the measured value of outlet temperature is less than temperature is stopped, by the stop signal (control of motor 7
Signal) output is to inverter control unit 51, and thus, inverter control unit 51 stops motor 7 via inverter 8.
Fan assembly 1 shown in Fig. 4 has the motor shell 53 for being accommodated with motor 7 and is accommodated with inverter 8 and inverse
Become the inverter case 54 of device control unit 51.Inverter case 54 and motor shell 53 are integrated as a motor control shell
Body 17.More specifically, by the way that inverter case 54 is linked with motor shell 53, motor control housing 17 is constituted.Motor 7 is received
Be contained in the motor chamber 27 for the inside for being formed at motor shell 53, inverter 8 and inverter control unit 51 be accommodated in be formed at it is inverse
Become the inverter room 28 of the inside of device housing 54.
In the present embodiment, temperature control part 52 is also accommodated in inverter case 54.More specifically, temperature control part
52 are built in inverter control unit 51.In this case, inverter control unit 51 (or temperature control part 52) can also have
Common arithmetic unit (such as CPU), the common arithmetic unit has in order to which the control signal of the action to motor 7 is transported
Calculate and be arranged at the function of the arithmetic unit of temperature control part 52 and in order to be carried out based on control signal to the action of motor 7
Control and be arranged at the function of the arithmetic unit of inverter control unit 51.Common arithmetic unit is based on defeated from temperature sensor 19
The measured value of the outlet temperature gone out carries out computing to the control signal of the action of motor 7, is performed via inverter 8 and is based on the control
The action control of the motor 7 of signal.In the case where being controlled using common arithmetic unit to motor 7, wind can be reduced
The manufacturing cost (that is, the manufacturing cost of heat exchanger) of fan device 1.
In one embodiment, temperature control part 52 and inverter control unit 51 can also be discretely configured at inverter
Room 28.In this case, temperature control part 52 is connected via signal cable with inverter control unit 51, and temperature control part 52 is exported
The control signal of action of motor 7 sent via the signal cable to inverter control unit 51.In the cold of configuration heat exchanger
But in the overall structure of system, inverter control unit 51 can also be only configured to the inverter room 28 of inverter case 54, will
Temperature control part 52 is configured at the control panel with the configured separate of inverter case 54.In this case, temperature control part 52 via
Signal cable is connected with inverter control unit 51, and the control signal of the action for the motor 7 that temperature control part 52 is exported is via the letter
Number cable is sent to inverter control unit 51.
In the present embodiment, motor shell 53 and inverter case 54 have drum.And then, in motor 7
The axle that the axle breakthrough part of the insertion motor shell 53 of rotary shaft 6 is configured with the gap between sealing rotary shaft 6 and motor shell 53 is close
Sealing 70.
As shown in figure 4, inverter case 54 is integrated as a motor control housing 17 with motor shell 53, therefore,
The flowing of the air produced by the rotation of fan 5 is hardly collided with motor control housing 17.Thus, pass through fan 5
Rotation and the flowing of air that produces will not be hindered, therefore, air can move smoothly through fan assembly 1.And then, from
Be accommodated in motor shell 53 motor 7 extend to fan 5 motor 7 rotary shaft 6 not by inverter case 54, therefore, nothing
The inverter case 54 with complicated structure need to be made.Thus, it is possible to simple structure by motor 7, inverter 8 and inversion
The blocking of device control unit 51.In particular, in the fan assembly 1 shown in Fig. 4, temperature control part 52 is accommodated in inverter case
54, therefore, more than motor 7, inverter 8 and inverter control unit 51, additionally it is possible to by the blocking of temperature control part 52.With
Under, to possessing the preferred of the fan assembly 1 for the motor control housing 17 that motor shell 53 and inverter case 54 are integrated
Embodiment is described in detail.
As shown in figure 4, the motor control housing 17 that fan 5 and motor shell 53 are integrated with inverter case 54
Arranged along vertical.More specifically, inverter case 54 is with fan 5, motor shell 53 and the edge of inverter case 54
The mode for vertical arrangement links with motor shell 53.Thus, motor 7, inverter 8, inverter control unit 51 and temperature
Degree control unit 52 is unitized.And then, by motor shell in the way of motor shell 53 is located between inverter case 54 and fan 5
Body 53 links with inverter case 54.In the present embodiment, inverter case 54 is located at the upside of motor shell 53, fan 5
Positioned at the downside of motor shell 53.
Power supply cable hole 54a is formed with the side wall 54b of inverter case 54, is supplied from power supply (not shown) towards inverter 8
Power supply cable 42 to electric power extends through power supply cable hole 54a.And then, extend to temperature control part from temperature sensor 19
52 signal cable 45 passes through power supply cable hole 54a.Bottom wall through hole 54d is formed with the bottom wall 54c of inverter case 54,
The upper wall through hole 53b connected with the bottom wall through hole 54d of inverter case 54 is formed with the upper wall 53a of motor shell 53.
In the present embodiment, the bottom wall through hole 54d of inverter case 54 diameter is with the upper wall through hole 53b's of motor shell 53
Diameter is identical.These bottom wall through hole 54d and upper wall insertion are passed through from inverter 8 towards the motor cable 46 of the supply electric power of motor 7
Hole 53d extends.
Motor 7 can also be induction motor, but it is preferred that motor 7 be be configured with permanent magnet rotor and with this
The PM motors (Permanent Magnet Motor) of rotor stator arranged opposite.In particular, as shown in figure 4, it is preferred that motor 7
It is the IPM motor (Interior Permanent Magnet Motor) that permanent magnet 41 is configured with the inside of rotor 43.PM horses
There is high efficiency up to (especially IPM motor), therefore, it is possible to minimize motor 7.
Rotor 43 is fixed on rotary shaft 6, and stator 44 is fixed on the inner surface of motor shell 53.Motor 7 shown in Fig. 4 is fixed
Son 44 is configured at the radial gap type motor on the outside of the radial direction of rotor 43.In addition, although not shown, but motor 7 can also
It is stator and the axially aligned axial-gap motor of rotor.
The rotary shaft 6 of motor 7 shown in Fig. 4 in vertical by being discretely configured at two bearings of motor shell 53
35th, 36 supportings are to rotate.Upside bearing 35 is installed on the upper surface of motor chamber 27, and lower side bearing 36 is installed on motor chamber 27
Lower surface.
In the present embodiment, it is accommodated with the motor shell 53 of motor 7 and is accommodated with inverter 8 and inverter control unit
51 inverter case 54 is integrated as a motor control housing 17.Thus, motor 7, inverter 8 and inverter control
Portion 51 is unitized.As a result, without independently preparing to store the control panel of inverter 8 and inverter control unit 51, and then, energy
Enough shorten the distribution between motor 7 and inverter control unit 51.As a result, it is possible to the manufacturing cost of heat exchanger is reduced, and energy
Enough reduce the baneful influence that electrical noise etc. is caused to inverter control unit 51 and peripheral equipment.
And then, in the present embodiment, because temperature control part 52 is also accommodated in inverter case 54, so more than horse
Up to 7, inverter 8 and inverter control unit 51, and by temperature control part 52 also blocking.As a result, without preparing to store inverse
Become the independent or multiple control panel of device 8, inverter control unit 51 and temperature control part 52, and then, inverter can be shortened
Distribution between control unit 51 and temperature control part 52.Thus, it is possible to the overall system of the cooling system for reducing configuration heat exchanger
This is caused, and periphery of the electrical noise to inverter control unit 51, temperature control part 52 and these control units can be reduced
The baneful influence that equipment is caused.
And then, fan 5, motor shell 53 and inverter case 54 are arranged along vertical.Thus, pass through fan 5
Rotation and the air that produces the motor that is hardly integrated with motor shell 53 and inverter case 54 of flowing
Control housing 17 collide, therefore, air flowing will not by motor control housing 17 obstruction.That is, air can be suitable
Freely pass through fan assembly 1.As a result, it is possible to reduce the consumption electric power of heat exchanger.
In the case where inverter case 54 is located between motor shell 53 and fan 5, the horse of motor shell 53 is accommodated in
Rotary shaft 6 up to 7 necessarily passes through inverter case 54.In this case, it is necessary to which inverter case 54 is formed as into annular, in order to avoid
Rotary shaft 6 is contacted with inverter case 54.
And then, when air carries out heat exchange in the inside of heat exchanger body 3,32 and liquid, the temperature of air and
Humidity rises.If high temperature and the air of high humility invade the inside of inverter case 54, can be in inverter case 54
Inside produces condensate.Thus, in the case where inverter case 54 is had into annular, sealing rotary rotating shaft 6 and horse are not merely had to
Gap up between housing 53, it is necessary to seal the gap between inverter case 54 and motor shell 53.As a result, inverter shell
The construction of body 54 becomes complicated.
And then, in order to be needed in the inverter case 54 of annular configuration inverter substrate 8a in inverter substrate 8a
Centre portion forms big through hole.In this case, inscape (such as work(for the inverter 8 being configured on inverter substrate 8a
Rate element 50 etc.) configuration be restricted.As a result, the size increase of the inverter case 54 of inverter 8 is stored.
In the present embodiment, motor is constituted in the way of motor shell 53 is located between inverter case 54 and fan 5
Housing 17 is controlled, therefore, the rotary shaft 6 of fan 5 is extended to not by inverter case from the motor 7 for being accommodated in motor shell 53
54.Thus, without making the inverter case 54 with complicated structure.For example, the inverter with drum can be used
Housing 54.As a result, it is possible to simple structure that motor 7, inverter 8, inverter control unit 51 and temperature control part 52 is single
Memberization.And then, without in inverter substrate 8a formation through holes, therefore, it is possible to reduce inverter substrate 8a size.As a result,
The size of inverter case 54 can be reduced.
Fig. 5 is the schematic diagram of the fan assembly shown in Fig. 4.In Figure 5, the horse of a part for motor control housing 17 is constituted
Up to housing 53 width Xb be less than fan 5 propeller boss 16 width Xa, and then, constitute motor control housing 17 a part it is inverse
The width Xc for becoming device housing 54 is identical with the width Xb of motor shell 53.
The air-flow produced by the rotation of fan 5 is formed by the fin 14 of fan 5.On the other hand, the propeller boss 16 of fan 5
It is helpless to the generation of air-flow.Thus, by the way that the width Xb of motor shell 53 and inverter case 54 width Xc are set into wind
Below the width Xa of the propeller boss 16 of fan 5, can further reduce to be integrated forming with inverter case 54 with motor shell 53
The amount of air-flow that collides of motor control housing 17.The width Xc of inverter case 54 is preferably the width of motor shell 53
Below Xb.According to the structure, do not touched by the air-flow after on the outside of the radial direction of motor shell 53 with inverter case 54
Hit, therefore air can move smoothly through fan assembly 1.
Fig. 6 is the schematic diagram of the fan assembly 1 involved by another embodiment.The present embodiment being not specifically noted
Structure is identical with the structure for the fan assembly 1 that reference picture 4 and Fig. 5 illustrate, therefore omits the repeat specification to it.
In the fan assembly 1 shown in Fig. 6, also by fan 5 and motor shell 53 it is integrated with inverter case 54 and
Into motor control housing 17 arranged along vertical, and then, motor shell 53 be located at fan 5 and inverter case 54 it
Between.Inverter case 54 links with motor shell 53.But, fan assembly 1 involved by present embodiment and reference picture 4 and
The difference for the fan assembly 1 that Fig. 5 illustrates is that inverter case 54 is located at the downside of motor shell 53, and fan 5 is located at horse
Up to the upside of housing 53.
In the present embodiment, the rotary shaft 6 for extending to fan 5 from the motor 7 for being accommodated in motor shell 53 does not also pass through
Inverter case 54.Thus, it is identical with the motor control housing 17 for the fan assembly 1 that reference picture 4 and Fig. 5 illustrate, can be with
Simple structure is by motor 7, inverter 8, inverter control unit 51 and the blocking of temperature control part 52.And then, pass through fan 5
Rotation and the air that produces the motor that is hardly integrated with motor shell 53 and inverter case 54 of flowing
Control housing 17 collides.Thus, it is possible to reduce the consumption electric power of heat exchanger.
In the present embodiment, the width Xb of the motor shell 53 and width Xc of inverter case is preferably fan 5
Below the width Xa of propeller boss 16.And then, the width Xc of inverter case 54 is preferably below the width Xb of motor shell 53.
In the heat exchanger for possessing the fan assembly 1 shown in Fig. 4 and Fig. 5, operator can be from heat exchanger body
3rd, 32 (reference picture 1, Fig. 2 and Fig. 3 (a)) outside is to motor 7, inverter 8, inverter control unit 51 or temperature control part
52 are safeguarded.On the other hand, in the heat exchanger for possessing the fan assembly 1 shown in Fig. 6, operator is in order to motor 7, inverse
Become device 8, inverter control unit 51 or temperature control part 52 to be safeguarded, it is necessary into the inside of heat exchanger body 3,32.
Thus, the fan assembly 1 shown in Fig. 4 and Fig. 5 easily performs upkeep operation compared with the fan assembly 1 shown in Fig. 6.
Fig. 7 is the sectional view of the fan assembly 1 involved by a further embodiment.The present embodiment being not specifically noted
Structure is identical with the structure of the fan assembly 1 shown in Fig. 4, therefore omits the repeat specification to it.
In the fan assembly 1 shown in Fig. 7, the inside of motor control housing 17 is divided into motor chamber using spaced walls 29
27 and inverter room 28, above-mentioned motor shell 53 is integrated as a motor control housing 17 with inverter case 54.More
Specifically, the inside of motor control housing 17 is divided into motor chamber 27 and inverter room 28 by spaced walls 29, forms motor chamber
27 part forms the part of inverter room 28 equivalent to above-mentioned embodiment party equivalent to the motor shell 53 in above-mentioned embodiment
Inverter case 54 in formula.In the present embodiment, motor control housing 17 has drum, and inverter room 28 is located at horse
Up to the upside of room 27.Inverter 28 can also be made to be located at the downside of motor chamber 27, fan 5 is located at the upside of motor chamber 27, no
Cross and this is unillustrated.
Power supply cable hole 17a is formed with the side wall 17b of motor control housing 17, from power supply (not shown) towards inverter 8
The power supply cable 42 of supply electric power extends through power supply cable hole 17a.And then, extend to temperature control from temperature sensor 19
The signal cable 45 in portion 52 passes through power supply cable hole 17a.Motor cable hole 29a is formed with spaced walls 29, from the court of inverter 8
The motor cable 46 of the supply electric power of motor 7 extends through motor cable hole 29a.Power supply cable hole 17a is equivalent to above-mentioned implementation
The power supply cable hole 54a of the side wall 54b for being formed at inverter case 54 in mode.Motor cable hole 29a is equivalent to above-mentioned reality
Apply the inverter case 54 in mode bottom wall through hole 54d and with the bottom wall through hole 54d motor shells 53 connected
Upper wall through hole 53b.
In the present embodiment, motor shell 53 is integrated as a motor control housing 17 with inverter case 54,
Therefore, it is possible to simple and compact structure by motor 7, inverter 8, inverter control unit 51 and the unit of temperature control part 52
Change.And then, the flowing of the air produced by the rotation of fan 5 hardly collides with motor control housing 17.Cause
And, the consumption electric power of heat exchanger can be reduced.The width Xd of motor control housing 17 is preferably below the width Xa of propeller boss 16.
Fig. 8 is the sectional view for showing the fan assembly 1 involved by a further embodiment.This embodiment party being not specifically noted
The structure of formula is identical with the structure of the fan assembly 1 shown in Fig. 4, therefore omits the repeat specification to it.
Fan assembly 1 shown in Fig. 8 has the inverter case 54 for being configured at the part for constituting motor control housing 17
Top sunshading board 80.There is a situation where heat exchanger being arranged at outside room.In this case, inverter case 54 is exposed
In direct sunlight, the temperature of inverter case 54 is thus caused to rise.By setting sunshading board in the top of inverter case 54
80, the amount for the direct sunlight irradiated towards inverter case 54 can be reduced.As a result, it is possible to suppress inverse because of caused by direct sunlight
The temperature for becoming device housing 54 rises.
Sunshading board 80 is supported by the rib 81 for being fixed on the upper wall 54e of inverter case 54 upper surface.One can be utilized
Rib 81 supports sunshading board 80, can also support sunshading board 80 using multiple ribs.Sunshading board 80 can be made up of metal, can also be by
The resin of plastics etc. is constituted.It is preferred that the width Xe of sunshading board 80 is the width Xb of motor shell 53 and the width of inverter case 54
Spend Xc (reference picture 5) below, the flowing of the air produced with obstruction free by the rotation of fan 5.In the present embodiment, hide
The width Xe of positive plate 80 is identical with the width Xb of motor shell 53 and inverter case 54 width Xc.Alternatively, it is also possible to incite somebody to action
Sunshading board 80 is configured at the top of the motor control housing 17 shown in Fig. 7.In this case, the width Xe of sunshading board 80 is preferably
The width Xd (reference picture 7) of motor control housing 17 is below.
Fig. 9 is the sectional view for showing the fan assembly 1 involved by a further embodiment.This embodiment party being not specifically noted
The structure of formula is identical with the structure of the fan assembly 1 shown in Fig. 4, therefore omits the repeat specification to it.
Fan assembly 1 shown in Fig. 9 has the inverter case 54 for being installed on the part for constituting motor control housing 17
Upper wall 54e upper surface heat-insulating material 85.The upper wall 54e of the heat-insulating material 85 covering inverter case 54 is overall.It is adiabatic
Material 85 can be fixed on the upper wall 54e of inverter case 54 by the fixture (not shown) of screw etc., can also use viscous
Meet the upper wall 54e that agent is pasted on inverter case 54.The heat for preventing from producing by the irradiation of direct sunlight using heat-insulating material 85
Transmitted towards inverter case 54.Thus, it is possible to which the temperature for suppressing the inverter case 54 because of caused by direct sunlight rises.It is adiabatic
Material 85 is made up of resin with heat-insulating property etc..Such heat-insulating material 85 can be commercially available.Alternatively, it is also possible to
The upper surface of the upper wall for the motor control housing 17 heat-insulating material 85 being installed on shown in Fig. 7.
Fan assembly 1 can also have the sunshading board 80 shown in Fig. 8 and the both sides of heat-insulating material 85 shown in Fig. 9, but
This is unillustrated.
Above-mentioned embodiment is can to implement this hair with the people of the usual knowledge with the technical field belonging to the present invention
Recorded for the purpose of bright.To those skilled in the art, the various modifications example of above-mentioned embodiment can be obtained certainly,
The technological thought of the present invention can also apply to other embodiment.Thus, the present invention is not limited to described embodiment party
Formula, it may be that the maximum scope according to the technological thought being defined by the claims.
Claims (10)
1. a kind of heat exchanger, possesses for importing air towards the heat exchanger body that heat exchange is carried out between liquid-to-air
Fan assembly, it is characterised in that
The fan assembly possesses：
Motor；
Fan, it is fixed in the rotary shaft of the motor；
Inverter, it can carry out speed change to the motor；
Inverter control unit, it is controlled via the inverter to the action of the motor；
Motor shell, it stores the motor；And
Inverter case, it stores the inverter and the inverter control unit,
The inverter case and the motor shell are integrated as a motor control housing.
2. heat exchanger according to claim 1, it is characterised in that
The heat exchanger is also equipped with：
Discharge pipe, it discharges the liquid from the heat exchanger body；
Temperature sensor, it is measured to the temperature of the liquid that is, outlet temperature that are flowed in the discharge pipe；And
Temperature control part, its measured value based on the outlet temperature is by the control signal of the action of the motor towards the inversion
Device control unit is exported,
The temperature control part is incorporated in the inverter case.
3. heat exchanger according to claim 1 or 2, it is characterised in that
The fan, the motor shell and the inverter case are arranged along vertical, and the motor shell is located at
Between the inverter case and the fan.
4. heat exchanger according to claim 3, it is characterised in that
The inverter case is located at the upside of the motor shell,
The fan is located at the downside of the motor shell.
5. heat exchanger according to claim 3, it is characterised in that
The fan have be fixed on the motor rotary shaft propeller boss and from the propeller boss extend radially it is multiple
Fin,
Below the width of the motor shell and the width that the width of the inverter case is the propeller boss.
6. heat exchanger according to claim 4, it is characterised in that
The fan have be fixed on the motor rotary shaft propeller boss and from the propeller boss extend radially it is multiple
Fin,
Below the width of the motor shell and the width that the width of the inverter case is the propeller boss.
7. heat exchanger according to claim 5, it is characterised in that
The width of the inverter case is below the width of the motor shell.
8. heat exchanger according to claim 6, it is characterised in that
The width of the inverter case is below the width of the motor shell.
9. heat exchanger according to claim 4, it is characterised in that
The heat exchanger is also equipped with sunshading board, and the sunshading board is configured at the top of the inverter case.
10. heat exchanger according to claim 4, it is characterised in that
The heat exchanger is also equipped with heat-insulating material, and the heat-insulating material is installed on the upper surface of the upper wall of the inverter case.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016070299A JP6797541B2 (en) | 2016-03-31 | 2016-03-31 | Heat exchanger |
| JP2016-070299 | 2016-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107270739A true CN107270739A (en) | 2017-10-20 |
Family
ID=60004201
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710183672.4A Pending CN107270739A (en) | 2016-03-31 | 2017-03-24 | Heat exchanger |
| CN201720297563.0U Active CN206648515U (en) | 2016-03-31 | 2017-03-24 | Heat exchanger |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720297563.0U Active CN206648515U (en) | 2016-03-31 | 2017-03-24 | Heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6797541B2 (en) |
| CN (2) | CN107270739A (en) |
| HK (1) | HK1244051A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6797541B2 (en) * | 2016-03-31 | 2020-12-09 | 株式会社荏原製作所 | Heat exchanger |
| JP7182393B2 (en) * | 2018-08-03 | 2022-12-02 | 東芝キヤリア株式会社 | Air conditioner indoor unit |
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| JPH05340690A (en) * | 1992-06-05 | 1993-12-21 | Yazaki Corp | Cooling tower and its cooling capacity control method |
| JPH09252563A (en) * | 1996-03-14 | 1997-09-22 | Toshiba Corp | Control unit integrated motor |
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| JP2006217748A (en) * | 2005-02-04 | 2006-08-17 | Asmo Co Ltd | Fan motor |
| JP2011517758A (en) * | 2008-03-24 | 2011-06-16 | プライム デイタム、インコーポレーテッド | Integrated fan drive system for air-cooled heat exchanger |
| JP2013079606A (en) * | 2011-10-04 | 2013-05-02 | Ebara Corp | Ventilation facility for tunnel |
| CN103155379A (en) * | 2010-10-07 | 2013-06-12 | 株式会社荏原制作所 | Motor assembly and pump device |
| JP2014087728A (en) * | 2012-10-29 | 2014-05-15 | Miura Co Ltd | Water treatment adjusting system |
| CN105026873A (en) * | 2013-04-08 | 2015-11-04 | 富士电机株式会社 | Cooling system controls |
| CN206648515U (en) * | 2016-03-31 | 2017-11-17 | 株式会社荏原制作所 | Heat exchanger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1075583A (en) * | 1996-08-30 | 1998-03-17 | Matsushita Electric Ind Co Ltd | Inverter device cooler |
| JP2000056442A (en) * | 1998-08-13 | 2000-02-25 | Noritsu Koki Co Ltd | Liquid heating device for photo processing equipment |
| JP5238348B2 (en) * | 2008-05-16 | 2013-07-17 | 株式会社荏原製作所 | Motor assembly and pump device |
-
2016
- 2016-03-31 JP JP2016070299A patent/JP6797541B2/en active Active
-
2017
- 2017-03-24 CN CN201710183672.4A patent/CN107270739A/en active Pending
- 2017-03-24 CN CN201720297563.0U patent/CN206648515U/en active Active
-
2018
- 2018-03-12 HK HK18103385.7A patent/HK1244051A1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05340690A (en) * | 1992-06-05 | 1993-12-21 | Yazaki Corp | Cooling tower and its cooling capacity control method |
| JPH09252563A (en) * | 1996-03-14 | 1997-09-22 | Toshiba Corp | Control unit integrated motor |
| JP2004015956A (en) * | 2002-06-10 | 2004-01-15 | Matsushita Electric Ind Co Ltd | Drive circuit integrated motor |
| JP2006217748A (en) * | 2005-02-04 | 2006-08-17 | Asmo Co Ltd | Fan motor |
| JP2011517758A (en) * | 2008-03-24 | 2011-06-16 | プライム デイタム、インコーポレーテッド | Integrated fan drive system for air-cooled heat exchanger |
| CN103155379A (en) * | 2010-10-07 | 2013-06-12 | 株式会社荏原制作所 | Motor assembly and pump device |
| JP2013079606A (en) * | 2011-10-04 | 2013-05-02 | Ebara Corp | Ventilation facility for tunnel |
| JP2014087728A (en) * | 2012-10-29 | 2014-05-15 | Miura Co Ltd | Water treatment adjusting system |
| CN105026873A (en) * | 2013-04-08 | 2015-11-04 | 富士电机株式会社 | Cooling system controls |
| CN206648515U (en) * | 2016-03-31 | 2017-11-17 | 株式会社荏原制作所 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1244051A1 (en) | 2018-07-27 |
| CN206648515U (en) | 2017-11-17 |
| JP2017180978A (en) | 2017-10-05 |
| JP6797541B2 (en) | 2020-12-09 |
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