CN105180403B - A kind of water module bottom plate and air-cooled heat pump water chiller-heater units - Google Patents
A kind of water module bottom plate and air-cooled heat pump water chiller-heater units Download PDFInfo
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- CN105180403B CN105180403B CN201410246924.XA CN201410246924A CN105180403B CN 105180403 B CN105180403 B CN 105180403B CN 201410246924 A CN201410246924 A CN 201410246924A CN 105180403 B CN105180403 B CN 105180403B
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Abstract
The invention discloses a kind of water module bottom plate and air-cooled heat pump water chiller-heater units, are related to air-conditioner set technical field.To solve the problem of that the air-cooled heat pump water chiller-heater units of the prior art water module bottom plate in refrigerating operaton generates condensation water and invents.Water module bottom plate of the present invention, including plate body, the plate body are used to install each component of water module, and the plate body is equipped with through-hole, and the through-hole can make the air circulation of the plate body two sides.Water module bottom plate of the present invention can be used for air-cooled heat pump water chiller-heater units.
Description
Technical field
The present invention relates to air-conditioner set technical field more particularly to a kind of water module bottom plates and air-cooled heat pump cold-hot water machine
Group.
Background technique
Air-cooled heat pump water chiller-heater units are a kind of air-conditioner hosts, and such unit not only can provide cooling capacity but also can provide heat, are saved
But boiler room and cooling water system, convenient and flexible installation, reliability is higher, therefore, air-cooled heat pump water chiller-heater units are in air-conditioning
It can be widely used in engineering.
In air-cooled heat pump water chiller-heater units, the heat of water system and refrigerant in water module transmits the heat for generating outer machine
Or cooling capacity is transmitted to interior by water system, to reach indoor temperature requirement.Referring to Fig.1, water module mainly includes water
The portions such as module bottom plate 1, electrical box 2, drip tray 3, electric heating 4, expansion tank 5, water pump 6, plate heat exchanger 7 and fluid reservoir 8
Part, water module is fixed on the wall by water module bottom plate 1, meanwhile, electrical box 2, drip tray 3, electric heating 4, expansion tank 5, water
The components such as pump 6, plate heat exchanger 7 and fluid reservoir 8 are mounted on water module bottom plate 1.Referring to Figures 1 and 2, in the prior art,
Since water module bottom plate 1 is a plate, in unit refrigerating operaton, water pump 6, plate heat exchanger 7 and liquid storage in water module
Between tank 8 etc. and water module bottom plate 1, fixed by the bolt of metal plate and metal plate and face contact it is thermally conductive so that water module bottom plate 1
On the other hand cooling due to cold emission but also water module bottom plate 1 cools down, is cooled to the dew-point temperature of air hereinafter, to make
It obtains water module bottom plate 1 and generates condensation water, when especially humidity is larger, condensation water is larger, all to installation metope and unit itself
Damage is caused, is but the dew condensation phenomenon by the way of paste heat-preserving pad mostly in the prior art to reduce dew condensation phenomenon
Not be improved significantly, and increase cost, reduce production efficiency.
Summary of the invention
The embodiment of the present invention provides a kind of water module bottom plate and air-cooled heat pump water chiller-heater units, in unit refrigerating operaton
When, the temperature of water module bottom plate is improved, so that water module bottom plate be prevented to generate condensation water, and then is reduced to unit and peace
Fill the damage of metope.
In order to achieve the above objectives, the embodiment provides a kind of water module bottom plate, including plate body, the plate body is used
In each component of installation water module, the plate body is equipped with through-hole, and the through-hole can make the air circulation of the plate body two sides.
Further, the through-hole is multiple, and the position of multiple through-holes each component with the water module respectively
Installation region it is corresponding.
Further, the plate body is equipped with multiple heat keepers, and the position of the heat keeper is each with the water module
The installation region of component is corresponding.
Further, the plate body is equipped with the mounting hole for installing each component of the water module, the mounting hole
Inside it is equipped with heat insulating washer.
Further, the heat insulating washer outer wall offers card slot, and the inner wall of the hole installing fastens with the card slot.
Further, the through-hole is rectangular opening.
The embodiments of the present invention also provide a kind of air-cooled heat pump water chiller-heater units, including water module bottom plate and it is set to institute
The water module on water module bottom plate is stated, the water module bottom plate is water module bottom plate described in any one of above-mentioned technical proposal.
Further, the water module includes drip tray, electric heating top, electric heating lower part, expansion tank, water pump, plate
Formula heat exchanger and fluid reservoir, the through-hole is 7, and the position of the through-hole peace with each component of the water module respectively
Region is filled to correspond.
Further, the through-hole is rectangular opening, and the clear size of opening of the installation region of the corresponding drip tray is 60
~95mm*20~40mm, the clear size of opening of the installation region on the corresponding electric heating top are 70~100mm*70~100mm,
The clear size of opening of the installation region of the corresponding electric heating lower part is 60~90mm*15~50mm, the corresponding expansion tank
The clear size of opening of installation region is 150~190mm*25~60mm, and the clear size of opening of the installation region of the corresponding water pump is 60
~95mm*20~40mm, the clear size of opening of the installation region of the corresponding plate heat exchanger are 120~160mm*25~60mm,
The clear size of opening of the installation region of the corresponding fluid reservoir is 60~95mm*20~40mm.
Compared with prior art, water module bottom plate provided in an embodiment of the present invention and air-cooled heat pump water chiller-heater units have such as
Lower advantage: water module bottom plate provided in an embodiment of the present invention, including the plate body for installing each component in water module, in unit system
When cold operation, since the temperature difference inside and outside unit causes the hot pressing of water inside modules, " the hot pressing in applicable industry draught principle
Gravity-flow ventilation under effect " principle, through-hole is opened up on plate body, may make the air circulation of plate body two sides, external hot-air
It exchanges heat with the cold air convection of water inside modules, good ventilation heat exchange effect is formd in water inside modules, so that water module
The temperature of bottom plate can be correspondingly improved；On the other hand, the edge metal plate of through-hole directly contacts hot-air, further by thermally conductive
Last point of cooling capacity of water module bottom plate is counteracted, so that the temperature of water module bottom plate can also be correspondingly improved, higher than the dew of air
Point temperature so that water module bottom plate be prevented to generate condensation water, and then reduces to unit and installs the damage of metope.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the water module of the prior art；
Fig. 2 is the structural schematic diagram of the water module bottom plate of the prior art；
Fig. 3 is the structural schematic diagram of water of embodiment of the present invention module bottom plate；
Fig. 4 is thermocouple layout drawing on water of embodiment of the present invention module bottom plate；
Fig. 5 is the schematic diagram of heat keeper on water of embodiment of the present invention module bottom plate；
Fig. 6 is the structural schematic diagram in the portion A in Fig. 5；
Fig. 7 is the structural schematic diagram of rubber washer on water of embodiment of the present invention module bottom plate；
Fig. 8 is the top view of rubber washer on water of embodiment of the present invention module bottom plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
It is a specific embodiment of water of embodiment of the present invention module bottom plate, water module in the present embodiment referring to Fig. 3, Fig. 3
Bottom plate 1, including plate body 11, plate body 11 are used to install each component of water module, meanwhile, plate body 11 is equipped with through-hole, and through-hole can make
The air circulation of 11 two sides of plate body.
Water module bottom plate 1 provided in an embodiment of the present invention, including the plate body 11 for installing each component in water module, in machine
When group refrigerating operaton, the temperature difference inside and outside unit causes the hot pressing of water the inside modules, " hot pressing in applicable industry draught principle
Gravity-flow ventilation under effect " principle, opens up through-hole on plate body 11, may make the air circulation of 11 two sides of plate body, external heat
The cold air convection of air and water inside modules exchanges heat, and good ventilation heat exchange effect is formd in water inside modules, so that water
The temperature of module bottom plate 1 can be correspondingly improved；On the other hand, the edge metal plate of through-hole directly contacts hot outside, into one
Step counteracts water module 1 last point of cooling capacity of bottom plate by thermally conductive, so that the temperature of water module bottom plate 1 can also be correspondingly improved,
Higher than the dew-point temperature of air, so that water module bottom plate 1 be prevented to generate condensation water, and then reduce to unit and installation metope
Damage.In addition, the inside of water module opens up through-hole on plate body 11 there are also water pump sound and cool matchmaker's flow noise, avoid entire
Water module forms the reinforcing of resonator and noise source when noise generates.In addition, through-hole is opened up on plate body 11, it can be effective
Mitigate the weight of entire unit, to reduce the mass loading to load bearing wall.
On the one hand the cooling of water module bottom plate 1 is due to cold emission, be on the other hand due to the bolt between metal plate and metal plate
Fixed and face contact it is thermally conductive.1 condensation of water module bottom plate in order to prevent, inventor are analyzed and are demonstrated above by test
Which is the main reason for causing water module bottom plate 1 to cool down in two reasons.
Thermocouple is arranged in each position point of water module, in detail when water module bottom plate 1 does not open up through-hole referring to Fig. 4
The temperature of each measuring point is had recorded, meanwhile, the temperature data of each measuring point is analyzed, " electricity adds the measuring point 07 in first: Fig. 4
Hot bottom " is the temperature minimum point in water inside modules, and temperature is 12.8 DEG C, if cold emission accounts for leading factor, then surveying
The temperature in 09 " the big bottom plate upper left corner " of point should be close, but the temperature for the measuring point 09 surveyed is 23.9 DEG C, it is seen that cold emission
Influence to 1 temperature of water module bottom plate is smaller.Second: the bulk temperature of electric heating 4 should it is lower than the bulk temperature of water pump 6 (by
In same water temperature, water pump 6 has itself operating fever), then measuring point 05 " nearly electric heating nut point " is than " the nearly charging pump spiral shell of measuring point 02
The temperature of mother " is low or temperature is consistent.But the measuring point 05 of actual measurement is 24.9 DEG C, and measuring point 02 is 22.5 DEG C, and the temperature of measuring point 05 is anti-
And it is higher than the temperature of measuring point 02, it can also show that influence of the cold emission to 1 temperature of water module bottom plate is smaller as a result,.Third: measuring point 06
The temperature of " fluid reservoir fixed point " is 15.1 DEG C, is the secondary low spot of entire water inside modules temperature, and nearest close to fluid reservoir 8
" the big bottom plate right jamming button " temperature of measuring point 08 is 24.1 DEG C, has nearly 10 DEG C of temperature difference with 15.1 DEG C, in conjunction with above three criterions, can obtain
Know that cold emission is not the main reason for causing water module bottom plate 1 to cool down.4th: due to the most important cold source of water module bottom plate 1
Region is therefore the position of the lower middle where water pump 6, plate heat exchanger 7, fluid reservoir 8 is protected three big cool source members
Temperature processing.The observed temperature of measuring point 01,02,03,04,05 in Fig. 4 are as follows: 20.8 DEG C, 22.5 DEG C, 23.4 DEG C, 24.6 DEG C, 24.9
DEG C, i.e., down from the highest point of water module bottom plate 1, the temperature difference successively decreased step by step is formed, meanwhile, the positional relationship of these points,
Be on condensing drip to drip tray 3 after, the temperature difference step by step that is formed after cooling capacity is transmitted on water module bottom plate 1 by drip tray 3.
The mode of the heat transfer of cold source region and water module bottom plate 1 have it is thermally conductive and two kinds of heat loss through convection, due to all being done to three big cool source members
Isothermal holding, therefore, the influence of heat loss through convection is very small, and forming the main reason for water module bottom plate 1 temperature reduces as a result, is
Bolt between metal plate and metal plate fix and the contact in face it is thermally conductive.
In addition, being fixed to the bolt between metal plate and metal plate and the thermally conductive of the contact in face is to lead to 1 temperature of water module bottom plate
The main reason for reduction, has carried out verification test, and first: after the fixed metal plate of fluid reservoir 8 is separated from water module bottom plate 1, liquid storage
When tank 8 is in hanging shape, the almost no longer condensation of water module bottom plate 1 herein.Second: by 3 metal plate of drip tray from water module bottom plate 1
It removes, and after condensed water is removed, the temperature of measuring point 01 " primary and secondary buttcover plate " rises to 26.8 DEG C from 20.8 DEG C, it is seen then that condensation
Water on to drip tray 3 can form 6 DEG C of thermal conduction temperature difference.In conjunction with the above two o'clock, the bolt demonstrated between metal plate and metal plate is solid
The thermally conductive of fixed and face contact is the main reason for causing 1 temperature of water module bottom plate to reduce, simultaneously as cold emission is with one kind
The mode released cold quantity of disperse, rate of release is slower, and the bolt between metal plate and metal plate is fixed and the thermally conductive of the contact in face is
Released cold quantity by convection, rate of release is very fast, and therefore, the bolt theoretically demonstrated between metal plate and metal plate is fixed
And the thermally conductive of the contact in face is the main reason for causing 1 temperature of water module bottom plate to reduce, in conjunction with test and theory, preferably to open up more
A through-hole, and the position of multiple through-holes is corresponding with the installation region of each component of water module respectively, as a result, external hot-air
Water inside modules are flowed into from multiple through-holes, meanwhile, it is fixed from the edge of through-hole by the bolt that heat is oriented between metal plate and metal plate
And the contact in face, it is equivalent to and counteracts a part of cooling capacity, improve that bolt between metal plate and metal plate is fixed and face connects as a result,
The temperature of touching so that water module bottom plate 1 be prevented to generate condensation water, and then reduces to unit and installs the damage of metope.
Referring to figure 5 and figure 6, in order to realize the soft contact between each component and plate body 11, setting is more preferably on plate body 11
A heat keeper 9, and the position of heat keeper 9 is corresponding with the installation region of each component of water module, is installing each component as a result,
When, heat keeper 9 can play the role of backing plate, it ensure that the soft contact between each component and plate body 11, meanwhile, heat keeper 9 can subtract
The small cooling capacity for being conducted to plate body 11, and then improve the temperature of water module bottom plate 1.
Referring to Fig. 3, mounting hole 10 is opened up on plate body 11, each component is mounted on plate body 11 by mounting hole 10, together
When, in order to reduce the cooling capacity for being conducted to plate body 11, heat insulating washer 13 is set preferably in mounting hole 10, heat insulating washer 13 can be used
Rubber washer, cork washer, plastic washer etc., since rubber washer is durable and good heat-insulation effect, it is therefore preferable that using rubber pad
Circle reduces each member conducts to plate across heat insulating washer 13 between each component and plate body 11 as a result, referring to Fig. 7 and Fig. 8
The cooling capacity of body 11, and then improve the temperature of water module bottom plate 1.
In order to which heat insulating washer 13 to be installed in mounting hole 10, card slot 131 can be opened up on the outer wall of heat insulating washer 13, joined
According to Fig. 7, meanwhile, card slot 131 and the inner wall of mounting hole 10 are connected together, and card slot 131 can also be not provided with, directly by heat insulating washer 13
It is placed in mounting hole 10.Due to opening up card slot 131 on the outer wall of heat insulating washer 13, so that heat insulating washer 13 is not easily to fall off,
Meanwhile being easy to location and installation, it is therefore preferable that card slot 131 is arranged on the outer wall of heat insulating washer 13, as a result, mounting hole 10
It is connected together with heat insulating washer 13, ensure that heat insulating washer 13 is easily installed and not easily to fall off.
Referring to Fig. 3, the hole of the various shapes such as circle, rectangle is can be used in the through-hole on plate body 11, since round hole is to plate body
11 destruction is larger, so that plate body 11 is unsightly, meanwhile, by verification experimental verification, in the identical situation of area, rectangular opening is than circle
The anti-condensation effect in shape hole is good, it is therefore preferable that through-hole is rectangular opening, the anti-condensation effect of water module bottom plate 1 is preferable as a result, together
When appearance looks elegant.
The embodiments of the present invention also provide a kind of air-cooled heat pump water chiller-heater units, including water module bottom plate 1 and it is set to
Water module on water module bottom plate 1, water module bottom plate 1 are the water module bottom plate 1 as described in above-mentioned any embodiment.
Due to the water module provided in each embodiment of water module bottom plate 1 and above-mentioned water module bottom plate 1 in the present embodiment
Bottom plate 1 is identical, therefore the two is able to solve identical technical problem, and reaches identical desired effect.
Referring to Fig. 3 and Fig. 4, water module includes drip tray 3, electric heating top 41, electric heating lower part 42, expansion tank 5, water
Pump 6, plate heat exchanger 7 and fluid reservoir 8, since the bolt between metal plate and metal plate is fixed and the thermally conductive of the contact in face is to lead
The main reason for causing water module bottom plate 1 to cool down, it is therefore preferable that opening up 7 through-holes, and the position of through-hole is each with water module respectively
The installation region of component corresponds, and the contact surface and bolt of the metal plate between each component and bottom plate and metal plate are fixed as a result,
Temperature can be improved in point, so that the temperature of water module bottom plate 1 can be correspondingly improved, so that it is solidifying to prevent water module bottom plate 1 to generate
Dew, and then reduce to unit and install the damage of metope.
In unit operation, the temperature of each installation region on plate body 11 is measured, meanwhile, indoor survey operating condition is 27 DEG C of DB
(dry-bulb temperature)/25 DEG C WB (wet-bulb temperature), relative humidity 85.18%, dew-point temperature are 24.4 DEG C.In each installation region
It is interior, due to mutually crossing for cold source on plate body 11 and heat source, the temperature range of cold source is typically below dew point on plate body 11
2 DEG C~9 DEG C of temperature, meanwhile, inventor also by the cold source in each installation region on verification experimental verification plate body 11 temperature range
About it is lower than 2 DEG C~9 DEG C of dew-point temperature, it is therefore preferable that the region by temperature lower than 2 DEG C~9 DEG C of dew-point temperature is set as through-hole
Position, then the anti-condensation effect of water module bottom plate 1 is best.
Specifically, referring to Fig. 3, the clear size of opening of the installation region of corresponding drip tray 3 is 60~95mm*20~40mm, right
The clear size of opening for answering the installation region on electric heating top 41 is 70~100mm*70~100mm, the peace of corresponding electric heating lower part 42
The clear size of opening for filling region is 60~90mm*15~50mm, the clear size of opening of the installation region of corresponding expansion tank 5 is 150~
190mm*25~60mm, the clear size of opening of the installation region of corresponding water pump 6 are 60~95mm*20~40mm, corresponding plate-type heat-exchange
The clear size of opening of the installation region of device 7 is 120~160mm*25~60mm, the clear size of opening of the installation region of corresponding fluid reservoir 8
For 60~95mm*20~40mm, external hot-air flows into water inside modules from each through-hole as a result, meanwhile, from the side of each through-hole
Edge fixes the bolt that heat is oriented between metal plate and metal plate and the contact in face, so that the bolt between metal plate and metal plate
The temperature of fixed and face contact is increased to above the dew-point temperature of air, and then realizes the not condensation of water module bottom plate 1.Together
When, the perforated area of 11 upper end of plate body is smaller, and the perforated area of lower end is big, takes full advantage of the density gradient shape of inside and outside hot-air
At barometric gradient, generate " stack effect " further avoided so that water inside modules form good ventilation heat exchange effect
The generation of 1 condensation of water module bottom plate.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of water module bottom plate, including plate body, the plate body is used to install each component of water module, which is characterized in that described
Plate body is equipped with through-hole, and the through-hole can make the air circulation of the plate body two sides；The through-hole is multiple, the plate body upper end
The through-hole perforated area be less than the plate body lower end the through-hole perforated area；
The position of multiple through-holes is corresponding with the installation region of each component of the water module respectively.
2. water module bottom plate according to claim 1, which is characterized in that the plate body is equipped with multiple heat keepers, described
The position of heat keeper is corresponding with the installation region of each component of the water module.
3. water module bottom plate according to claim 1, which is characterized in that the plate body is equipped with for installing the water mould
The mounting hole of each component of block is equipped with heat insulating washer in the mounting hole.
4. water module bottom plate according to claim 3, which is characterized in that the heat insulating washer outer wall offers card slot, institute
Inner wall of the hole installing is stated to fasten with the card slot.
5. water module bottom plate according to any one of claims 1 to 4, which is characterized in that the through-hole is rectangular opening.
6. a kind of air-cooled heat pump water chiller-heater units, including water module bottom plate and the water module being set on the water module bottom plate,
It is characterized in that, the water module bottom plate is water module bottom plate according to any one of claims 1 to 5.
7. air-cooled heat pump water chiller-heater units according to claim 6, which is characterized in that the water module include drip tray,
Electric heating top, electric heating lower part, expansion tank, water pump, plate heat exchanger and fluid reservoir, the through-hole are 7, and described
The position of through-hole is corresponded with the installation region of each component of the water module respectively.
8. air-cooled heat pump water chiller-heater units according to claim 7, which is characterized in that the through-hole is rectangular opening, right
The clear size of opening for answering the installation region of the drip tray is 60~95mm*20~40mm, the installation on the corresponding electric heating top
The clear size of opening in region is 70~100mm*70~100mm, and the clear size of opening of the installation region of the corresponding electric heating lower part is
60~90mm*15~50mm, the clear size of opening of the installation region of the corresponding expansion tank are 150~190mm*25~60mm,
The clear size of opening of the installation region of the corresponding water pump is 60~95mm*20~40mm, the installation of the corresponding plate heat exchanger
The clear size of opening in region is 120~160mm*25~60mm, the clear size of opening of the installation region of the corresponding fluid reservoir is 60~
95mm*20~40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246924.XA CN105180403B (en) | 2014-06-05 | 2014-06-05 | A kind of water module bottom plate and air-cooled heat pump water chiller-heater units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246924.XA CN105180403B (en) | 2014-06-05 | 2014-06-05 | A kind of water module bottom plate and air-cooled heat pump water chiller-heater units |
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| CN105180403A CN105180403A (en) | 2015-12-23 |
| CN105180403B true CN105180403B (en) | 2018-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107367049B (en) * | 2017-06-28 | 2023-05-09 | 宁波奥克斯电气股份有限公司 | Cardboard mechanism of air source heat pump unit's indoor set |
| CN108592459A (en) * | 2018-04-25 | 2018-09-28 | 海信（山东）空调有限公司 | The water chiller-heater unit of high modularization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10288396A (en) * | 1997-04-11 | 1998-10-27 | Sanyo Electric Co Ltd | Heat source machine |
| CN202419801U (en) * | 2012-01-06 | 2012-09-05 | 珠海格力电器股份有限公司 | Air conditioner indoor unit |
| CN202792670U (en) * | 2012-08-20 | 2013-03-13 | 广东美的电器股份有限公司 | Air cooled heat pump cold hot water unit |
| CN203036902U (en) * | 2012-12-24 | 2013-07-03 | 北京民意伟业太阳能热水器有限公司 | Small variable-frequency air cooling heat pump water cooling and heating unit |
-
2014
- 2014-06-05 CN CN201410246924.XA patent/CN105180403B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10288396A (en) * | 1997-04-11 | 1998-10-27 | Sanyo Electric Co Ltd | Heat source machine |
| CN202419801U (en) * | 2012-01-06 | 2012-09-05 | 珠海格力电器股份有限公司 | Air conditioner indoor unit |
| CN202792670U (en) * | 2012-08-20 | 2013-03-13 | 广东美的电器股份有限公司 | Air cooled heat pump cold hot water unit |
| CN203036902U (en) * | 2012-12-24 | 2013-07-03 | 北京民意伟业太阳能热水器有限公司 | Small variable-frequency air cooling heat pump water cooling and heating unit |
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| CN105180403A (en) | 2015-12-23 |
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