CN203132140U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN203132140U CN203132140U CN 201320088925 CN201320088925U CN203132140U CN 203132140 U CN203132140 U CN 203132140U CN 201320088925 CN201320088925 CN 201320088925 CN 201320088925 U CN201320088925 U CN 201320088925U CN 203132140 U CN203132140 U CN 203132140U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- heat exchanger
- pipe
- water inlet
- refrigerant
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000003507 refrigerant Substances 0.000 claims abstract description 52
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat exchanger which comprises a first sleeve and a second sleeve. A first water inlet, a first water outlet, a first refrigerant inlet and a first refrigerant outlet are arranged on the first sleeve. The second sleeve and the first sleeve are alternately spirally laminated, and a second water inlet, a second water outlet, a second refrigerant inlet and a second refrigerant outlet are arranged on the second sleeve. The heat exchanger has the advantages of being high in heat exchange efficiency, small in volume, low in cost and the like.
Description
Technical field
The utility model relates to the heat exchange field, in particular to a kind of heat exchanger.
Background technology
Air source heat pump water heater is because its energy-efficient free of contamination characteristics are described as level formula water heater eventually.Double pipe heat exchanger is widely used in the air source heat pump water heater field as water-side heat.Existing double pipe heat exchanger adopts the structure of two sleeve pipes stacked (two-layer up and down), and namely two sleeve pipes are positioned at another sleeve pipe top around pipe and a sleeve pipe separately respectively.Not only volume is big for this heat exchanger, cost is high, and the difference in height of intake-outlet is bigger, and it is uneven to cause the water yield to be distributed, hot water and cold-producing medium heat exchange inequality, and two sleeve pipe delivery port temperature difference are bigger, and the total water temperature in the back of confluxing reduces, and influences heat exchange efficiency.
The utility model content
The utility model is intended to solve at least one of technical problem that exists in the prior art.For this reason, a purpose of the present utility model is to propose a kind of heat exchange efficiency height, volume is little, cost is low heat exchanger.
For achieving the above object, the utility model proposes a kind of heat exchanger, described heat exchanger comprises: first sleeve pipe, and described first sleeve pipe is provided with first water inlet, first delivery port, first refrigerant inlet and first refrigerant outlet; And second sleeve pipe, it is stacked that described second sleeve pipe and described first sleeve pipe replace spiral, and described second sleeve pipe is provided with second water inlet, second delivery port, second refrigerant inlet and second refrigerant outlet.
Stacked by described first sleeve pipe and described second sleeve pipe being replaced spiral according to heat exchanger of the present utility model, can reduce the difference in height of described first sleeve pipe and described second sleeve pipe, and the difference in height that can make described first sleeve pipe and described second sleeve pipe is fixed value, can reduce distance between described first water inlet and described second water inlet and the distance between described first delivery port and described second delivery port thus.Compare the existing heat exchanger that superposes up and down around Guan Houzai separately, the water yield of described heat exchanger is distributed more even, can make like this water and cold-producing medium more equably heat exchange so that the temperature from the water of the outflow of described first delivery port and described second delivery port is more even respectively, thereby can avoid the water total water temperature in back of confluxing to reduce to improve the heat exchange efficiency of described heat exchanger.And it is compacter that described first sleeve pipe and described second sleeve pipe replace the stacked structure of described heat exchanger that can make of spiral, not only can reduce described heat exchanger volume thus, and can reduce the production cost of described heat exchanger.Therefore, have heat exchange efficiency height, little, the low cost and other advantages of volume according to heat exchanger of the present utility model.
In addition, also have following additional technical feature according to heat exchanger of the present utility model:
Link to each other successively in the multilayer of the above first sleeve pipe of above-below direction and the multilayer of described second sleeve pipe.So not only the heat exchange efficiency of described heat exchanger can be further improved, and the installing space of described heat exchanger can be saved.
Described first water inlet and described first refrigerant outlet are located at the upper end that the lower end of described first sleeve pipe and described first delivery port and described first refrigerant inlet are located at described first sleeve pipe, and described second water inlet and described second refrigerant outlet are located at the upper end that the lower end of described second sleeve pipe and described second delivery port and described second refrigerant inlet are located at described second sleeve pipe.Can further improve the heat exchange efficiency of described heat exchanger like this.
Described heat exchanger also comprises respectively the outlet pipe that is communicated with and has the water inlet pipe of total water inlet and be communicated with and have total delivery port respectively with described first and second delivery ports with described first and second water inlets.It is convenient that the installation of described heat exchanger is connected, and described water inlet pipe and described outlet pipe have little, the low cost and other advantages that takes up room.
Described water inlet pipe is provided with the water inlet elbow that is communicated with described total water inlet, and described outlet pipe is provided with the water exit elbow that is communicated with described total delivery port.Can further make the installation of described heat exchanger connect convenient thus.
The upper end of described outlet pipe is provided with air bleeding valve.Can avoid gas in described first sleeve pipe and described second sleeve pipe to drain like this and influence the heat exchange efficiency of described heat exchanger.
The lower end of described water inlet pipe is provided with draining valve.Can prevent that like this water in described first sleeve pipe and described second sleeve pipe from freezing.
Described first sleeve pipe is provided with the first cold-producing medium inlet pipe that is communicated with described first refrigerant inlet and first cold-producing medium that is communicated with described first refrigerant outlet goes out pipe, and described second sleeve pipe is provided with the second cold-producing medium inlet pipe that is communicated with described second refrigerant inlet and second cold-producing medium that is communicated with described second refrigerant outlet goes out pipe.Cold-producing medium is flowed into more easily and flow out described first sleeve pipe and described second sleeve pipe, and can so that the installation of described heat exchanger connect.
Described first refrigerant inlet and described first refrigerant outlet are located on the medial surface of described first sleeve pipe, and described second refrigerant inlet and described second refrigerant outlet are located on the medial surface of described second sleeve pipe.Can make the reasonable more installing space with the described heat exchanger of further saving of structure of described heat exchanger thus.
Described heat exchanger also comprises mounting bracket, and described mounting bracket links to each other with in described first and second sleeve pipes at least one.Can make the easier for installation of described heat exchanger thus.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the heat exchanger of the utility model embodiment.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Below with reference to the heat exchanger 10 of Fig. 1 description according to the utility model embodiment.As shown in Figure 1, the heat exchanger 10 according to the utility model embodiment comprises first sleeve pipe 100 and second sleeve pipe 200.
According to the heat exchanger 10 of the utility model embodiment by alternately spiral is stacked with first sleeve pipe 100 and second sleeve pipe 200, can reduce the difference in height of first sleeve pipe 100 and second sleeve pipe 200, and the difference in height that can make first sleeve pipe 100 and second sleeve pipe 200 is fixed value, can reduce distance between described first water inlet and described second water inlet and the distance between described first delivery port and described second delivery port thus.Compare the existing heat exchanger that superposes up and down around Guan Houzai separately, the water yield of heat exchanger 10 is distributed more even, can make like this water and cold-producing medium more equably heat exchange so that the temperature from the water of the outflow of described first delivery port and described second delivery port is more even respectively, thereby can avoid the water total water temperature in back of confluxing to reduce to improve the heat exchange efficiency of heat exchanger 10.And alternately the stacked structure of heat exchanger 10 that can make of spiral is compacter for first sleeve pipe 100 and second sleeve pipe 200, not only can reduce the volume of heat exchanger 10 thus, and can reduce the production cost of heat exchanger 10.Therefore, the heat exchanger 10 according to the utility model embodiment has heat exchange efficiency height, little, the low cost and other advantages of volume.
Wherein, as shown in Figure 1, in the multilayer of the multilayer of first sleeve pipe 100 on the above-below direction and second sleeve pipe 200 can link to each other successively (above-below direction is shown in the arrow A among Fig. 1).That is to say that adjacent two-layer or one deck of every layer of first sleeve pipe 100 and second sleeve pipe 200 is in contact with one another on above-below direction.So not only can further reduce the difference in height of first sleeve pipe 100 and second sleeve pipe 200 with the heat exchange efficiency of further raising heat exchanger 10, and can further reduce the volume of heat exchanger 10 with the installing space of saving heat exchanger 10.
Alternatively, as shown in Figure 1, heat exchanger 10 can also comprise mounting bracket 700, and mounting bracket 700 can link to each other with in second sleeve pipe 200 at least one with first sleeve pipe 100.In other words, mounting bracket 700 can link to each other with first sleeve pipe 100, and mounting bracket 700 also can link to each other with second sleeve pipe 200, and mounting bracket 700 can also link to each other with second sleeve pipe 200 with first sleeve pipe 100 respectively.By mounting bracket 700 is set, can utilize mounting bracket 700 that whole heat exchanger 10 is installed on the equipment (as water heater), can be so that heat exchanger 10 easier for installation.
Fig. 1 shows the heat exchanger 10 according to a specific embodiment of the utility model.As shown in Figure 1, described first water inlet and described first refrigerant outlet can be located at the upper end that the lower end of first sleeve pipe 100 and described first delivery port and described first refrigerant inlet can be located at first sleeve pipe 100, and described second water inlet and described second refrigerant outlet can be located at the upper end that the lower end of second sleeve pipe 200 and described second delivery port and described second refrigerant inlet can be located at second sleeve pipe 200.Can make the flow direction of the flow direction of water and cold-producing medium opposite thus, can be so that water and cold-producing medium reverse heat-exchange, can make water and cold-producing medium under the higher temperature difference of maintenance, carry out heat exchange all the time like this, thereby can make heat exchange more fully further to improve the heat exchange efficiency of heat exchanger 10.
Advantageously, as shown in Figure 1, heat exchanger 10 can also comprise respectively the outlet pipe 400 that is communicated with and has the water inlet pipe 300 of total water inlet and be communicated with and have total delivery port respectively with described first delivery port and described second delivery port with described first water inlet and described second water inlet.Can make water enter first sleeve pipe 100 and second sleeve pipe 200 simultaneously so that the moisture dosage of first sleeve pipe 100 and second sleeve pipe 200 is more even by water inlet pipe 300 thus, and the water in first sleeve pipe 100 and second sleeve pipe 200 are flowed out by outlet pipe 400.Can make the installation of heat exchanger 10 connect convenient like this.In addition, because the distance between described first water inlet and the described second water inlet distance between weak point, described first delivery port and described second delivery port is shorter, therefore the length of water inlet pipe 300 and outlet pipe 400 is shorter, and water inlet pipe 300 and outlet pipe 400 have little, the low cost and other advantages that takes up room.
Alternatively, as shown in Figure 1, the water inlet elbow 310 that is communicated with described total water inlet can be provided with on the water inlet pipe 300, the water exit elbow 410 that is communicated with described total delivery port can be provided with on the outlet pipe 400.Can further make the installation of heat exchanger 10 connect convenient thus.
Fig. 1 shows the heat exchanger 10 according to an embodiment of the utility model.As shown in Figure 1, the upper end of outlet pipe 400 can be provided with air bleeding valve 500.Particularly, air bleeding valve 500 can be automatic exhaust steam valve.By the upper end at water inlet pipe 300 air bleeding valve 500 is set, the characteristic that can utilize gas upwards to flow, more fully first sleeve pipe 100 and second sleeve pipe 200 are carried out emptying, thereby can avoid gases in first sleeve pipe 100 and second sleeve pipe 200 to drain and influence the heat exchange efficiency of heat exchanger 10.
Advantageously, as shown in Figure 1, the lower end of water inlet pipe 300 can be provided with draining valve 600.Particularly, draining valve 600 can be the manual drainage valve.Can when heat exchanger 10 is not worked, not carry out draining by opening draining valve 600 thus, thereby can prevent that the water in first sleeve pipe 100 and second sleeve pipe 200 from freezing.
Fig. 1 shows the heat exchanger 10 according to a concrete example of the utility model.As shown in Figure 1, can be provided with on first sleeve pipe 100 and go out the first cold-producing medium inlet pipe 110 that is communicated with described first refrigerant inlet and first cold-producing medium that is communicated with described first refrigerant outlet to be provided with the second cold-producing medium inlet pipe 210 that is communicated with described second refrigerant inlet on pipe 120, the second sleeve pipes 200 and second cold-producing medium that is communicated with described second refrigerant outlet goes out to manage 220.Cold-producing medium is flowed into more easily and flow out first sleeve pipe 100 and second sleeve pipe 200, and can so that the installation of heat exchanger 10 connect.
Advantageously, as shown in Figure 1, described first refrigerant inlet and described first refrigerant outlet can be located on the medial surface of first sleeve pipe 100, and described second refrigerant inlet and described second refrigerant outlet can be located on the medial surface of second sleeve pipe 200.Wherein the medial surface of first sleeve pipe 100 refers to the face of the central axis of contiguous stacked spiral helicine first sleeve pipe 100, and the medial surface of second sleeve pipe 200 refers to the face of the central axis of contiguous stacked spiral helicine second sleeve pipe 200.The inboard that can make the first cold-producing medium inlet pipe 110 and first cold-producing medium go out pipe 120 thus to be positioned at first sleeve pipe 100, make the second cold-producing medium inlet pipe 210 and second cold-producing medium go out pipe 220 to be positioned at the inboard of second sleeve pipe 200, thereby the structure that can make heat exchanger 10 is more rationally with the installing space of further saving heat exchanger 10.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a heat exchanger is characterized in that, comprising:
First sleeve pipe, described first sleeve pipe is provided with first water inlet, first delivery port, first refrigerant inlet and first refrigerant outlet; And
Second sleeve pipe, it is stacked that described second sleeve pipe and described first sleeve pipe replace spiral, and described second sleeve pipe is provided with second water inlet, second delivery port, second refrigerant inlet and second refrigerant outlet.
2. heat exchanger according to claim 1 is characterized in that, links to each other successively in the multilayer of the above first sleeve pipe of above-below direction and the multilayer of described second sleeve pipe.
3. heat exchanger according to claim 1, it is characterized in that, described first water inlet and described first refrigerant outlet are located at the upper end that the lower end of described first sleeve pipe and described first delivery port and described first refrigerant inlet are located at described first sleeve pipe, and described second water inlet and described second refrigerant outlet are located at the upper end that the lower end of described second sleeve pipe and described second delivery port and described second refrigerant inlet are located at described second sleeve pipe.
4. heat exchanger according to claim 3 is characterized in that, also comprises respectively the outlet pipe that is communicated with and has the water inlet pipe of total water inlet and be communicated with and have total delivery port respectively with described first and second delivery ports with described first and second water inlets.
5. heat exchanger according to claim 4 is characterized in that, described water inlet pipe is provided with the water inlet elbow that is communicated with described total water inlet, and described outlet pipe is provided with the water exit elbow that is communicated with described total delivery port.
6. heat exchanger according to claim 4 is characterized in that, the upper end of described outlet pipe is provided with air bleeding valve.
7. heat exchanger according to claim 4 is characterized in that, the lower end of described water inlet pipe is provided with draining valve.
8. heat exchanger according to claim 1, it is characterized in that, described first sleeve pipe is provided with the first cold-producing medium inlet pipe that is communicated with described first refrigerant inlet and first cold-producing medium that is communicated with described first refrigerant outlet goes out pipe, and described second sleeve pipe is provided with the second cold-producing medium inlet pipe that is communicated with described second refrigerant inlet and second cold-producing medium that is communicated with described second refrigerant outlet goes out pipe.
9. heat exchanger according to claim 8, it is characterized in that, described first refrigerant inlet and described first refrigerant outlet are located on the medial surface of described first sleeve pipe, and described second refrigerant inlet and described second refrigerant outlet are located on the medial surface of described second sleeve pipe.
10. according to each described heat exchanger among the claim 1-9, it is characterized in that, also comprise mounting bracket, described mounting bracket links to each other with in described first and second sleeve pipes at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088925 CN203132140U (en) | 2013-02-26 | 2013-02-26 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088925 CN203132140U (en) | 2013-02-26 | 2013-02-26 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132140U true CN203132140U (en) | 2013-08-14 |
Family
ID=48940114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088925 Expired - Lifetime CN203132140U (en) | 2013-02-26 | 2013-02-26 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132140U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135912A (en) * | 2015-09-24 | 2015-12-09 | 泰州市姜堰奥威机械有限公司 | Coaxial heat exchanger |
| CN107131780A (en) * | 2017-06-27 | 2017-09-05 | 珠海格力电器股份有限公司 | Double-pipe heat exchanger |
| WO2018068219A1 (en) * | 2016-10-12 | 2018-04-19 | 徐生恒 | Energy storage type instantaneous water heater |
| CN109974482A (en) * | 2019-04-29 | 2019-07-05 | 浙江康利德科技有限公司 | Double-pipe condenser |
| CN111426220A (en) * | 2020-04-02 | 2020-07-17 | 广东芬尼克兹节能设备有限公司 | An integrated tube heat exchanger |
-
2013
- 2013-02-26 CN CN 201320088925 patent/CN203132140U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135912A (en) * | 2015-09-24 | 2015-12-09 | 泰州市姜堰奥威机械有限公司 | Coaxial heat exchanger |
| WO2018068219A1 (en) * | 2016-10-12 | 2018-04-19 | 徐生恒 | Energy storage type instantaneous water heater |
| CN107131780A (en) * | 2017-06-27 | 2017-09-05 | 珠海格力电器股份有限公司 | Double-pipe heat exchanger |
| CN107131780B (en) * | 2017-06-27 | 2023-11-24 | 珠海格力电器股份有限公司 | Double-pipe heat exchanger |
| CN109974482A (en) * | 2019-04-29 | 2019-07-05 | 浙江康利德科技有限公司 | Double-pipe condenser |
| CN111426220A (en) * | 2020-04-02 | 2020-07-17 | 广东芬尼克兹节能设备有限公司 | An integrated tube heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203132140U (en) | Heat exchanger | |
| CN103134186B (en) | Multiple-cavity heat preservation water tank free of water mixing | |
| CN101598507B (en) | Heat exchange device of complete isolation sewage pipe casing of single-layer flat pipe | |
| CN104296424B (en) | Heat exchanger | |
| CN205641143U (en) | Heat transfer system and be equipped with this heat transfer system's heating system | |
| CN101464060A (en) | Baffle plate type bearing water tank | |
| CN203744632U (en) | Sectional type water cooling device | |
| CN207702694U (en) | A kind of evaporator drip tray anti-icing equipment | |
| CN102012175A (en) | Novel gas-liquid heat-exchange device | |
| CN112344565A (en) | Water route control system and phase change water heater | |
| CN204165285U (en) | Heat exchanger and floor heating heat pump heating | |
| CN107327311A (en) | A kind of long tunnel source of the gas cooling system | |
| CN210510718U (en) | A pipeline type high-efficiency condensing device | |
| CN205279819U (en) | Novel spiral plate type heat exchanger | |
| CN204165238U (en) | Water tank and the Teat pump boiler with this water tank | |
| CN203837532U (en) | Shell-tube type heat exchanger | |
| CN204730703U (en) | Two-tube-pass coil pipe heat exchanger | |
| CN102698450A (en) | Two-stage falling-climbing film evaporator | |
| CN201611162U (en) | Vertical electrically heated boiler | |
| CN207391389U (en) | A kind of liquor production is with being quickly cooled down tank | |
| CN202599010U (en) | Primary pump circulating control system for ice water preparation | |
| CN217716066U (en) | Molten salt storage device and molten salt heat storage system | |
| CN204902334U (en) | Heat pump set | |
| CN203274244U (en) | Water heater | |
| CN103033073B (en) | Tubular channel-type heat exchange method for sewage or surface water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131129 Address after: 528311 Beijiao, Guangdong, Shunde Town, Penglai Road, Industrial Avenue, Patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: GD MIDEA HOLDING CD., Ltd. Patentee before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |