CN205669888U - A kind of storage tank and circulating heat pump water heater - Google Patents
A kind of storage tank and circulating heat pump water heater Download PDFInfo
- Publication number
- CN205669888U CN205669888U CN201620303597.1U CN201620303597U CN205669888U CN 205669888 U CN205669888 U CN 205669888U CN 201620303597 U CN201620303597 U CN 201620303597U CN 205669888 U CN205669888 U CN 205669888U
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- water
- storage tank
- recirculated
- stop sheet
- storage cavity
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Abstract
A kind of storage tank disclosed in this utility model embodiment, including casing, described casing has recirculated water outlet and recirculated water water inlet, also include being arranged in described casing, described casing is separated into the water-stop sheet of at least two water storage cavity, and two described water storage cavities of arbitrary neighborhood all connect；Each described water storage cavity is equipped with described recirculated water outlet, and each described recirculated water outlet is used for connecting with the circulating water intake of cold-producing medium water-to-water heat exchanger by the first switch valve.This utility model, when having only to use small part hot water, only can be circulated heating to the hot water on storage tank upper strata, it is to avoid expends the useless hot water that extra power consumption heating is unnecessary.When only increasing by one layer of water-stop sheet, in theory can saving energy 50%, shorten heat time heating time 50%, the quantity of water-stop sheet is the most, the most energy-conservation, and heat time heating time is the shortest.The invention also discloses a kind of circulating heat pump water heater.
Description
Technical field
This utility model relates to technical field of water heaters, more particularly, it relates to a kind of storage tank and circulating Heat Pump
Hydrophone.
Background technology
Along with growth in the living standard, people increasingly pay close attention to self health, and therefore water heater has obtained developing widely,
And circulating heat pump water heater is due to its safety and energy-saving all relatively outstanding, increasingly favored by consumer.
Circulating heat pump water heater include cold-producing medium-water-to-water heat exchanger, refrigerant-air heat exchanger, compressor, storage tank and
Water circulating pump.When circulating heat pump water heater runs, compressor operating, refrigerator is circulated in refrigerator cycle loop,
So that cold-producing medium-water-to-water heat exchanger heat radiation.Water in storage tank is under the effect of water circulating pump, at cold-producing medium-water-to-water heat exchanger
And circulating between storage tank, cold water, through cold-producing medium-water-to-water heat exchanger, is heated by cold-producing medium-water-to-water heat exchanger, follows through several times
During ring, storage tank is heated to target temperature for consumer.
Existing circulating heat pump water heater, when heat hot water, is that the water in whole storage tank is progressively heated to target
Temperature.Even if having only to use the hot water reaching target temperature on a small quantity, it is also desirable to by the hot water heating in whole storage tank.Life
In relatively conventional a small amount of regimen condition have: being 1. equipped with storage tank volume in family is 200L, and single bath hot water usage amount exists
About 50L～100L.2. hot water in water heater is used to carry out washing the dishes, washing one's face.
When need not use a large amount of hot water, the hot water heating in whole storage tank will be existed two problems: one is
Firing rate is slow, and the waiting time is long；Two is single heat hot water big energy-consuming, if after after in storage tank, remaining hot water uses on a small quantity
Continuous not in use by then causing waste.
Therefore, how when use uses water on a small quantity, reduce heat time heating time, reduce energy resource consumption, become people in the art
The technical problem that member is urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of storage tank, and with when use uses water on a small quantity, minimizing adds
The heat time, reduce energy resource consumption；
Another object of the present utility model is to provide a kind of circulating heat pump water heater.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of storage tank, including casing, described casing has recirculated water outlet and recirculated water water inlet, also includes setting
It is placed in described casing, described casing is separated into the water-stop sheet of at least two water storage cavity, two described water storage cavities of arbitrary neighborhood
All connect；
Each described water storage cavity is equipped with described recirculated water outlet, and each described recirculated water outlet is by the first switch
Valve is for connecting with the circulating water intake of cold-producing medium-water-to-water heat exchanger.
Preferably, in above-mentioned storage tank, described first switch valve is the recirculated water allowing hand over each described water storage cavity
The connection of the circulating water intake of outlet and described cold-producing medium-water-to-water heat exchanger and the switching valve of cut-off state.
Preferably, in above-mentioned storage tank, the recirculated water outlet of each described water storage cavity is provided with described first and opens
Close valve.
Preferably, in above-mentioned storage tank, described water-stop sheet is heat resistance plate.
Preferably, in above-mentioned storage tank, described water-stop sheet offers the water excessively for two described water storage cavities of connection
Between the inwall of hole and/or the edge of described water-stop sheet and described casing, there is gap.
Preferably, in above-mentioned storage tank, described water hole is be opened in described water-stop sheet center one, or
Multiple for be opened on described water-stop sheet.
Preferably, in above-mentioned storage tank, water storage cavity described in only one is provided with recirculated water water inlet, and described recirculated water is intake
Mouth is for connecting with the circulating water outlet of cold-producing medium-water-to-water heat exchanger.
Preferably, in above-mentioned storage tank, described recirculated water water inlet is arranged at the water storage cavity being positioned at described casing top
On.
Preferably, in above-mentioned storage tank, each described water storage cavity is equipped with recirculated water water inlet, each described recirculated water
Water inlet is connected with the circulating water outlet of described cold-producing medium-water-to-water heat exchanger by second switch valve.
Preferably, in above-mentioned storage tank, described second switch valve is the recirculated water allowing hand over each described water storage cavity
The connection of the circulating water outlet of water inlet and described cold-producing medium-water-to-water heat exchanger and the switching valve of cut-off state.
Preferably, in above-mentioned storage tank, the recirculated water water inlet of each described water storage cavity is provided with described second and opens
Close valve.
A kind of circulating heat pump water heater, including storage tank, described storage tank is as above storage tank described in any one.
From above-mentioned technical scheme it can be seen that the storage tank of this utility model offer, by water-stop sheet, casing is separated
Become several water storage cavities, and all offer recirculated water outlet for each water storage cavity, and connected by the first switch valve and end
Recirculated water outlet, can be carried out the hot water in storage tank point by the position of the first switch valve conversion circulating outlet then
Layer heating.
When having only to use small part hot water, only the hot water on storage tank upper strata can be circulated heating, it is to avoid expend
The useless hot water that extra power consumption heating is unnecessary.When only increasing by one layer of water-stop sheet, in theory can saving energy 50%, shortening adds
The heat time 50%, the quantity of water-stop sheet is the most, the most energy-conservation, and heat time heating time is the shortest.
When needs use a large amount of hot water, can first upper strata water storage be heated, after reaching target temperature, then to lower floor's heat
Water is circulated heating, and is heated to target temperature.When increasing by one layer of water-stop sheet, reach the time of target temperature water outlet first
About 50% can be reduced.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The structural representation of the storage tank that Fig. 1 is provided by this utility model embodiment；
The structural representation of the storage tank that Fig. 2 is provided by another embodiment of this utility model；
The structural representation of the storage tank that Fig. 3 is provided by this utility model another embodiment；
The structural representation of the storage tank that Fig. 4 is provided by the another embodiment of this utility model；
The structural representation of the water-stop sheet that Fig. 5 is provided by this utility model embodiment；
The structural representation of the water-stop sheet that Fig. 6 is provided by another embodiment of this utility model；
The structural representation of the circulating heat pump water heater that Fig. 7 is provided by this utility model embodiment.
Wherein, 101 is hot water outlet, and 102 is recirculated water water inlet, and 103 is recirculated water outlet, and 104 is the first switch
Valve, 105 is casing, and 106 is running water inlet, and 107 is water-stop sheet, and 108 is second switch valve, and 109 is through hole, and 110 is refrigeration
Agent-water-to-water heat exchanger, 111 is compressor, and 112 is refrigerant-air heat exchanger, and 113 is throttling arrangement.
Detailed description of the invention
Core of the present utility model is to provide a kind of storage tank, when use uses water on a small quantity, to reduce heat time heating time, and fall
Low energy expenditure；
Another core of the present utility model is to provide a kind of circulating heat pump water heater.
Hereinafter, referring to the drawings embodiment is illustrated.Additionally, embodiments illustrated below is not to described in claim
Utility model content play any restriction effect.It addition, the full content of the composition represented by example below is not limited to conduct
Necessary to the solution of the utility model described in claim.
Refer to the structural representation of the storage tank that Fig. 1 and Fig. 7, Fig. 1 are provided by this utility model embodiment；Fig. 7 is
The structural representation of the circulating heat pump water heater that this utility model embodiment is provided.
The storage tank that this utility model embodiment provides, including casing 105 and water-stop sheet 107, casing 105 has circulation
Water outlet 103 and recirculated water water inlet 102, recirculated water outlet 103 is for by pipeline and cold-producing medium-water-to-water heat exchanger 110
Circulating water intake connection, recirculated water water inlet 102 is for by the circulating water outlet of pipeline Yu cold-producing medium-water-to-water heat exchanger 110
Connection so that the water in casing 105 carries out heat exchange in cold-producing medium-water-to-water heat exchanger 110, reaches the mesh of water in heating compartment 105
's.
Water-stop sheet 107 is arranged in casing 105, when only arranging a water-stop sheet 107, it is possible to be separated into by casing 105
Two water storage cavities, when arranging two water-stop sheets 107, it is possible to casing 105 is separated into three water storage cavities, can be according to casing 105
Volume, the quantity of reasonable Arrangement water-stop sheet 107 and position, thus control quantity and the volume of water storage cavity.Water-stop sheet is set
The purpose of 107 is during circulating-heating, reduces water-stop sheet 107 top and the bottom water as far as possible and produces the speed of convection current.Water proof
Plate 107 is preferably heat resistance plate, reduces water-stop sheet 107 top and the bottom water heat exchange amount.
Refer to the structural representation of the water-stop sheet that Fig. 5 and Fig. 6, Fig. 5 are provided by this utility model embodiment；Fig. 6 is
The structural representation of the water-stop sheet that another embodiment of this utility model is provided.
Two water storage cavities of arbitrary neighborhood all connect, can be by the gap between edge and casing 105 inwall of water-stop sheet 107
Water storage cavity is connected, it is possible to the mode offering multiple through hole 109 on water-stop sheet 107 shown in Fig. 5 of employing realizes water storage cavity
Connection, the mode offering a through hole 109 at water-stop sheet 107 center shown in Fig. 6 also can be used to realize the connection of water storage cavity.
Each water storage cavity is equipped with recirculated water outlet 103, only arranges a recirculated water outlet 103, this reality with existing
Add the quantity of recirculated water outlet 103 by new embodiment, each recirculated water outlet 103 is by the first switch valve 104
For connecting with the circulating water intake of cold-producing medium-water-to-water heat exchanger 110.First switch valve 104 can select to cut out some of them and follow
Ring water outlet 103, i.e. shielding some of them water storage cavity so that the water in these water storage cavities is not involved in heating.
The storage tank that this utility model provides, is separated into casing 105 several water storage cavities by water-stop sheet 107, and is
Each water storage cavity all offers recirculated water outlet 103, and is connected by the first switch valve 104 and end recirculated water outlet
103, then can be converted the position of circulating outlet 103 by the first switch valve 104, the hot water in storage tank be carried out layering and adds
Heat.
When having only to use small part hot water, only the hot water on storage tank upper strata can be circulated heating, it is to avoid expend
The useless hot water that extra power consumption heating is unnecessary.When only increasing by one layer of water-stop sheet 107, in theory can saving energy 50%, contracting
Short heat time heating time 50%, the quantity of water-stop sheet 107 is the most, the most energy-conservation, and heat time heating time is the shortest.
When needs use a large amount of hot water, can first upper strata water storage be heated, after reaching target temperature, then to lower floor's heat
Water is circulated heating, and is heated to target temperature.When increasing by one layer of water-stop sheet 107, reach target temperature water outlet first
Time can reduce about 50%.
In this utility model one specific embodiment, the first switch valve 104 is the recirculated water allowing hand over each water storage cavity
Outlet 103 (can be threeway with the connection of circulating water intake and the switching valve of cut-off state of cold-producing medium-water-to-water heat exchanger 110
Valve).
As shown in Figure 1 and Figure 7, when needs use a small amount of hot water, compressor 111 is opened, and water pump (not shown) is left
Beginning to circulate, the A mouth in the first switch valve 104 is connected with B mouth, and AC, BC do not connect.In storage tank, hot water is along path: be positioned at
Recirculated water outlet 103 first switch valve 104 cold-producing mediums of the water storage cavity of top layer-water-to-water heat exchanger 110 recirculated water water inlet
Mouth 102 is circulated, and in storage tank, water-retention finally flows back to storage tank after cold-producing medium-water-to-water heat exchanger 110 is heated, until water temperature
After reaching target set temperature out of service.Now the water on water-stop sheet 107 top has been heated to target temperature, and bottom water
Can be preferably adiabatic owing to having neither part nor lot in circulation and water-stop sheet 107, water temperature does not changes or changes less.When water temperature meets
After requirement, hot water discharges from hot water outlet 101, is at best able to release the hot water amount of about storage tank volume half.Due to
Half left and right hot water is only heated by heating process, in the less speed accelerating hot water of water consumption, has saved and added hot water
Energy consumption.
When needs use a large amount of hot water, compressor 111 is opened, and water pump starts the cycle over.Use the mode pair of leveled heating
Water storage in storage tank heats.First the water on water-stop sheet 107 upper strata is heated, the A mouth in the first switch valve 104 with
B mouth is connected, and AC, BC do not connect.In storage tank, hot water is along path: be positioned at the recirculated water outlet of the water storage cavity of top layer
103 first switch valve 104 cold-producing mediums-water-to-water heat exchanger 110 recirculated water water inlet 102 is circulated, the storage in storage tank
Water finally flows back to storage tank, until water temperature reaches target set temperature after cold-producing medium-water-to-water heat exchanger 110 is heated.
Switching over the first switch valve 104 afterwards, the A mouth in the first switch valve 104 is connected with C mouth, and BC, AC are the most not
Connection, the hot water in storage tank is along path: recirculated water outlet 103 first switch valve 104 being positioned at storage tank bottom is made
Cryogen-water-to-water heat exchanger 110 recirculated water water inlet 102 is circulated, until lower layer of water also reaches target water temperature.This mode contracts
The short time reaching target water temperature for the first time.
When water yield insulation runs, when limit value at a temperature of water-stop sheet 107 upper and lower part water temperature is less than simultaneously, preferentially to top
Water is divided to heat.
Refer to the structural representation of the storage tank that Fig. 2 and Fig. 3, Fig. 2 are provided by another embodiment of this utility model；Figure
The structural representation of 3 storage tanks provided by this utility model another embodiment.
The recirculated water outlet 103 of each water storage cavity is provided with the first switch valve 104, compared with above-described embodiment, this
In embodiment, the recirculated water outlet 103 of each water storage cavity being equipped with a first independent switch valve 104, this first is opened
Close valve 104 and be only capable of controlling the recirculated water outlet 103 of its correspondence.
When needs use a small amount of hot water, compressor 111 is opened, and water pump (not shown) starts the cycle over, and only opens position
The first switch valve 104 that water storage cavity in top layer is corresponding, other first switch valve 104 cuts out.In storage tank, hot water is along path: position
Recirculated water outlet 103 first switch valve 104 cold-producing mediums-water-to-water heat exchanger 110 recirculated water in the water storage cavity of top layer enters
The mouth of a river 102 is circulated, and in storage tank, water-retention finally flows back to storage tank after cold-producing medium-water-to-water heat exchanger 110 is heated, until water
Temperature is out of service after reaching target set temperature.Now the water on water-stop sheet 107 top has been heated to target temperature, and bottom
Water can be preferably adiabatic owing to having neither part nor lot in circulation and water-stop sheet 107, and water temperature does not changes or changes less.When water temperature is full
After foot requires, hot water discharges from hot water outlet 101, is at best able to release about storage tank volume half as shown in Figure 2
Hot water amount, is at best able to release the hot water amount of about storage tank volume 1/3rd as shown in Figure 3.Due in heating process only
Part hot water is heated, in the less speed accelerating hot water of water consumption, has saved the energy consumption adding hot water.
When needs use a large amount of hot water, compressor 111 is opened, and water pump starts the cycle over.Use the mode pair of leveled heating
Water storage in storage tank heats.First the water on water-stop sheet 107 upper strata is heated, open the water storage cavity pair being positioned at top layer
The first switch valve 104 answered, other first switch valve 104 cuts out.In storage tank, hot water is along path: be positioned at the water storage cavity of top layer
Recirculated water outlet 103 first switch valve 104 cold-producing mediums-water-to-water heat exchanger 110 recirculated water water inlet 102 is circulated,
Water-retention in storage tank finally flows back to storage tank, until water temperature reaches goal setting after cold-producing medium-water-to-water heat exchanger 110 is heated
Temperature.
Open another the first switch valve 104 afterwards, close and be positioned at the first switch valve 104 that the water storage cavity of top layer is corresponding,
Hot water in storage tank is along path: be positioned at recirculated water outlet 103 first switch valve 104 cold-producing medium of storage tank bottom-
Water-to-water heat exchanger 110 recirculated water water inlet 102 is circulated, until lower layer of water also reaches target water temperature.This mode shortens
Reach the time of target water temperature for the first time.
When water yield insulation runs, when limit value at a temperature of water-stop sheet 107 upper and lower part water temperature is less than simultaneously, preferentially to top
Water is divided to heat.
As shown in Figure 1-Figure 3, only one water storage cavity is provided with recirculated water water inlet 102, and recirculated water water inlet 102 is used for and system
The circulating water outlet connection of cryogen-water-to-water heat exchanger 110, it is preferable that the water storage cavity being positioned at top layer is provided with recirculated water water inlet 102,
I.e. recirculated water water inlet 102 is arranged on the water storage cavity being positioned at casing 105 top.
Refer to the structural representation of the storage tank that Fig. 4, Fig. 4 are provided by the another embodiment of this utility model.
In this utility model one specific embodiment, each water storage cavity is equipped with recirculated water water inlet 102, each recirculated water
Water inlet 102 is connected with the circulating water outlet of cold-producing medium-water-to-water heat exchanger 110 by second switch valve 108.Second switch valve 108
Can select to close some of them recirculated water water inlet 102, i.e. shielding some of them water storage cavity so that the water in these water storage cavities
It is not involved in heating.Can operationally circulation be intake, cyclic water outlet switch to same layer water storage cavity simultaneously, it is to avoid different layers
Hot water is caused to mix.
In this utility model one specific embodiment, second switch valve 108 is the recirculated water allowing hand over each water storage cavity
Water inlet 102 (can be threeway with the connection of circulating water outlet and the switching valve of cut-off state of cold-producing medium-water-to-water heat exchanger 110
Valve).It should be noted that the recirculated water water inlet 102 of each water storage cavity also can be provided with second switch valve 108.
This utility model embodiment also discloses a kind of circulating heat pump water heater, including water storage disclosed in above-described embodiment
Case, therefore has all of technique effect of above-mentioned storage tank concurrently, repeats no more herein.
This utility model embodiment also discloses a kind of circulating heat pump water heater heating means, uses above-described embodiment public
The circulating heat pump water heater opened heats, including step:
When circulating heat pump water heater is in the first mode of operation, the only water circulating-heating to storage tank upper strata water storage cavity
To target temperature.When having only to use small part hot water, optional first mode of operation, it is to avoid the extra power consumption of consuming adds
Useless hot water more than overabundant heat.When only increasing by one layer of water-stop sheet, in theory can saving energy 50%, shorten heat time heating time 50%,
The quantity of water-stop sheet is the most, the most energy-conservation, and heat time heating time is the shortest.
When circulating heat pump water heater is in the second mode of operation, to the water circulating-heating in storage tank to target temperature
Degree.
Further, when circulating heat pump water heater is in the second mode of operation, first the water in the water storage cavity of upper strata is entered
Row heating, after reaching target temperature, then is circulated heating to the water in other layer of water storage cavity, and is heated to target temperature.When
When increasing by one layer of water-stop sheet, the time reaching target temperature water outlet first can reduce about 50%.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new
Type.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (12)
1. a storage tank, including casing (105), described casing (105) has recirculated water outlet (103) and recirculated water enters
The mouth of a river (102), it is characterised in that also include being arranged in described casing (105), described casing (105) is separated at least two
The water-stop sheet (107) of individual water storage cavity, two described water storage cavities of arbitrary neighborhood all connect；
Each described water storage cavity is equipped with described recirculated water outlet (103), and each described recirculated water outlet (103) is by the
One switch valve (104) is for connecting with the circulating water intake of cold-producing medium-water-to-water heat exchanger (110).
2. storage tank as claimed in claim 1, it is characterised in that described first switch valve (104) is for allowing hand over each institute
State the recirculated water outlet (103) of water storage cavity and the connection of the circulating water intake of described cold-producing medium-water-to-water heat exchanger (110) and cut-off
The switching valve of state.
3. storage tank as claimed in claim 1, it is characterised in that the recirculated water outlet (103) of each described water storage cavity is equal
It is provided with described first switch valve (104).
4. storage tank as claimed in claim 1, it is characterised in that described water-stop sheet (107) is heat resistance plate.
5. storage tank as claimed in claim 1, it is characterised in that offer on described water-stop sheet (107) for connection two
Between the water hole of described water storage cavity and/or the inwall of the edge of described water-stop sheet (107) and described casing (105), there is seam
Gap.
6. storage tank as claimed in claim 5, it is characterised in that described water hole is for being opened in described water-stop sheet (107)
One of heart position, or multiple for be opened on described water-stop sheet (107).
7. the storage tank as described in any one of claim 1-6, it is characterised in that water storage cavity described in only one is provided with recirculated water and enters
The mouth of a river (102), described recirculated water water inlet (102) is for connecting with the circulating water outlet of cold-producing medium-water-to-water heat exchanger (110).
8. storage tank as claimed in claim 7, it is characterised in that described recirculated water water inlet (102) be arranged at be positioned at described
On the water storage cavity at casing (105) top.
9. the storage tank as described in any one of claim 1-6, it is characterised in that each described water storage cavity is equipped with recirculated water and enters
The mouth of a river (102), each described recirculated water water inlet (102) is by second switch valve (108) and described cold-producing medium-water-to-water heat exchanger
(110) circulating water outlet connection.
10. storage tank as claimed in claim 9, it is characterised in that described second switch valve (108) is for allowing hand over each institute
State the recirculated water water inlet (102) of water storage cavity and the connection of the circulating water outlet of described cold-producing medium-water-to-water heat exchanger (110) and cut-off
The switching valve of state.
11. storage tanks as claimed in claim 9, it is characterised in that the recirculated water water inlet (102) of each described water storage cavity is equal
It is provided with described second switch valve (108).
12. 1 kinds of circulating heat pump water heaters, including storage tank, it is characterised in that described storage tank is such as claim 1-11
Storage tank described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303597.1U CN205669888U (en) | 2016-04-11 | 2016-04-11 | A kind of storage tank and circulating heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303597.1U CN205669888U (en) | 2016-04-11 | 2016-04-11 | A kind of storage tank and circulating heat pump water heater |
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| Publication Number | Publication Date |
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| CN205669888U true CN205669888U (en) | 2016-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082961A1 (en) * | 2021-11-09 | 2023-05-19 | 美的集团(上海)有限公司 | Heat exchange device and dishwasher |
-
2016
- 2016-04-11 CN CN201620303597.1U patent/CN205669888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082961A1 (en) * | 2021-11-09 | 2023-05-19 | 美的集团(上海)有限公司 | Heat exchange device and dishwasher |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161102 |