CN112050295B - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN112050295B CN112050295B CN202010995647.8A CN202010995647A CN112050295B CN 112050295 B CN112050295 B CN 112050295B CN 202010995647 A CN202010995647 A CN 202010995647A CN 112050295 B CN112050295 B CN 112050295B
- Authority
- CN
- China
- Prior art keywords
- air
- indoor unit
- radiator
- cabinet body
- return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 29
- 238000009423 ventilation Methods 0.000 claims abstract description 15
- 238000004378 air conditioning Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention relates to the technical field of air conditioners, and aims to provide an air conditioner indoor unit which has a simple structure and low cost, and can realize the cooling and heat dissipation effects of a driving plate by utilizing a return air field of the air conditioner indoor unit, wherein the air conditioner indoor unit comprises a cabinet body; the evaporator and the fan are arranged in the cabinet body at the inner side of the air return opening; the compressor is arranged at the lower part of the cabinet body; the electrical box is positioned below the air return opening; the heat dissipation device comprises a radiator and a rectification fan cover; the radiator is connected with the electric box; the rectification fan cover is arranged on the outer side of the radiator, the upper end and the lower end of the rectification fan cover are opened, and a ventilation air channel is formed in the rectification fan cover; the negative pressure on the return air side enables the ventilation air duct to form air flow from bottom to top, and the air flow enters the cabinet body from the return air inlet after heat exchange between the ventilation air duct and the radiator from bottom to top. According to the air conditioner indoor unit, the air quantity flowing through the radiator is increased by utilizing the air conditioner return air field and the fairing, so that the cooling and heat dissipation effects of the driving plate are realized; the device such as a fan is not required to be additionally arranged, the structure is simple, and the cost is low.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit.
Background
With the improvement of the national energy efficiency requirements of air conditioners, variable frequency air conditioners have become basic requirements of various industries, industrial base station air conditioners are different from common household air conditioners, compressors are generally placed in indoor units, corresponding variable frequency driving plates of the compressors are also placed in the indoor units, and the problem of heat dissipation of corresponding driving plate IPM modules cannot be solved along with the general heat dissipation scheme of household outdoor air conditioners, so that a safe, reliable and effective heat dissipation form suitable for the indoor units of the air conditioners is needed to be designed.
Disclosure of Invention
In order to solve the problem of heat dissipation of the driving plate of the indoor unit in the prior art, the embodiment of the invention provides an air conditioner indoor unit, which adopts a return air wind field of the air conditioner indoor unit to realize the effect of cooling and heat dissipation of the driving plate, and has the advantages of simple structure and lower cost.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
The invention provides an air conditioner indoor unit, comprising:
The upper part of the cabinet body is provided with an air return port on the air return side;
the evaporator and the fan are arranged in the cabinet body at the inner side of the return air inlet;
the compressor is arranged at the lower part of the cabinet body;
The electric appliance box is arranged in the cabinet body and is positioned below the return air inlet;
The heat dissipation device comprises a radiator and a rectification fan cover; the radiator is connected with the electric box and used for radiating heat for the electric box, and protrudes out of the cabinet body; the rectification fan cover is arranged on the outer side of the radiator, the upper end and the lower end of the rectification fan cover are opened, and a ventilation air channel is formed in the rectification fan cover; the negative pressure on the return air side enables the ventilation air duct to form air flow from bottom to top, and the air flow flows through the ventilation air duct from bottom to top to exchange heat with the radiator and then enters the cabinet body from the return air inlet.
In one embodiment, the fairing comprises:
the fan housing body is fixedly connected with the cabinet body;
The fan housing baffle, set up in the upside of fan housing body, the fan housing baffle is followed the fan housing body upwards extends, the upper end of fan housing baffle exceeds the lower edge of return air inlet, set up in the outside of return air inlet.
In one embodiment, the fan housing body and the fan housing baffle are of an integrally formed structure.
In one embodiment, the side surface of the fan housing body is provided with a bending edge which is turned outwards, and the bending edge is fixedly connected with the cabinet body.
In one embodiment, the fan housing baffle is slidably connected to the fan housing body and is capable of sliding up and down along the fan housing body.
In one embodiment, a lifting device is connected between the fan housing baffle and the fan housing body, and the lifting device is used for adjusting the fan housing baffle to slide up and down.
In one embodiment, the rectification fan cover is provided with a heat dissipation air return opening, and the heat dissipation air return opening comprises a plurality of heat dissipation holes.
In one embodiment, a driving plate is arranged in the electrical box, and the heat dissipation air return port is arranged at a position below the area with the highest temperature of the radiator.
In one embodiment, the fins of the heat sink are vertically disposed.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
According to the air conditioner indoor unit, the air quantity flowing through the radiator is increased by adding the vertical rectifying fan cover by utilizing the return air field of the air conditioner indoor unit, and meanwhile, the effect of cooling and radiating the driving plate of the electric box is achieved by utilizing the chimney effect of rising hot air, and the radiating device is positioned on the return air side of the indoor unit, so that the influence on the whole air quantity is small; the wind field is adopted for cooling, so that an air conditioner fluorine system is not interfered, and the reliability is high; the device such as a fan is not required to be additionally arranged, the structure is simple, and the cost is low.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of an indoor unit of an air conditioner according to the present invention;
FIG. 2 is a partial exploded view of an air conditioner indoor unit according to the present invention in front view;
FIG. 3 is a partial exploded view of an indoor unit of an air conditioner according to the present invention in a rear view;
FIG. 4 is a cross-sectional view taken along the direction A-A of FIG. 1;
fig. 5 is a schematic structural view of an indoor unit of an air conditioner according to the present invention in a rear view direction;
FIG. 6 is an enlarged view of a portion of FIG. 5, illustrating a structural view of the fairing;
Reference numerals illustrate:
100-a cabinet body; 110-an air return port; 200-an evaporator; 300-fans; 400-compressor; 500-an electrical box; 510-a drive plate; 600-heat dissipating device; 610-a heat sink; 620-rectifying a fan cover; 621-a fan housing body; 6211-heat dissipation holes; 6212-crimping; 622-hood baffle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Referring to fig. 1 to 6, an embodiment of an indoor unit of an air conditioner according to the present invention is shown. The invention relates to an indoor unit of an industrial base station air conditioner, which comprises a cabinet body 100, an evaporator 200, a fan 300, a compressor 400, an electric box 500 and a heat dissipating device 600, wherein the evaporator 200, the fan 300, the compressor 400 and the heat dissipating device 600 are arranged in the cabinet body 100. Referring to fig. 1 and 2, the whole machine is a cabinet air conditioner structure with front air outlet and rear air return. An air return port 110 is formed in the air return side of the upper portion of the cabinet body 100, and an air return grid is arranged at the air return port 110. The evaporator 200 and the blower 300 are disposed in the upper space of the cabinet 100, and are sequentially disposed inside the return air inlet 110. The compressor 400 is disposed in a lower space of the cabinet 100. As shown in fig. 4, the electrical box 500 is disposed in the cabinet 100 and below the air return opening 110. In the present embodiment, the electrical box 500 is located directly under the evaporator 200. A driving plate 510 is provided in the electrical box 500.
As shown in fig. 3, the heat sink 600 includes a heat sink 610 and a cowling 620.
The radiator 610 is connected with the electrical box 500, and is used for radiating heat for the driving board 510 of the electrical box 500, and the radiator 610 protrudes outside the cabinet 100. Preferably, the fins of the heat sink 610 are disposed vertically.
The fairing 620 covers the outside of the heat sink 610. The upper and lower ends of the rectification fan housing 620 are opened, and a ventilation duct is formed inside. Referring to fig. 4, the negative pressure on the return air side of the indoor unit causes the ventilation duct to form a bottom-to-top airflow, and the airflow flows through the ventilation duct from bottom to top to exchange heat with the radiator 610, and then enters the cabinet 100 through the return air inlet 110. The indoor unit of the air conditioner of the present invention utilizes the negative pressure return air of the return air side of the cabinet body 100, and increases the rectification fan housing 620 on the outer surface of the radiator 610, so that the pressure difference is formed between the upper and lower sides of the ventilation air duct, thereby forming the heat dissipation through the radiator 610, and simultaneously, the heat exchange efficiency of the heat dissipation device 600 is improved by accelerating the upward flow of the air flow by utilizing the principle of the upward hot gas.
In the above-mentioned air conditioning indoor unit, the air quantity flowing through the radiator 610 is increased by adding the vertical fairing 620 by using the return air field of the air conditioning indoor unit, and meanwhile, the effect of cooling and radiating the driving plate 510 of the electrical box 500 is achieved by using the chimney effect of rising hot air, and the heat radiating device 600 is located at the return air side of the indoor unit, so that the influence on the whole air quantity is small; the wind field is adopted for cooling, so that an air conditioner fluorine system is not interfered, and the reliability is high; the device such as a fan is not required to be additionally arranged, the structure is simple, and the cost is low.
In the present embodiment, referring to fig. 5 and 6, the fairing 620 includes a fairing body 621 and a fairing baffle 622 provided on an upper side of the fairing body 621. The fan housing body 621 is fixedly connected with the cabinet 100. Specifically, the side of the fan housing body 621 is provided with a bending edge 6212 turned outwards, and the bending edge 6212 can be fixedly connected with the cabinet 100 by a fastener such as a screw. The fan cover baffle 622 extends upward along the fan cover body 621, and the upper end of the fan cover baffle 622 is higher than the lower edge of the air return opening 110 and is arranged outside the air return opening 110. The fan cover baffle 622 is higher than the lower edge of the air outlet 110, so that the pressure difference between the upper part and the lower part of the ventilation air duct can be increased, the airflow speed is increased, the air quantity flowing through the ventilation air duct is increased, and the heat exchange efficiency of the heat dissipating device 600 is further improved.
In this embodiment, the fan housing 621 and the fan housing baffle 622 are integrally formed, and are rectangular frame structures. As shown in fig. 6, the width dimension of the fairing 620 is W, the height of the fairing baffle 622 is h1 (the dimension of the fairing 620 higher than the lower edge of the air return opening 110), and the air volume flowing through the radiator 610 can be adjusted by changing the dimensions W and h1 of the fairing 620, so that the radiator 610 increases with the increase of W and h1 on the premise that the bottom air intake is kept to flow through the radiator 610 entirely.
In other embodiments, the fan housing body 621 and the fan housing baffle 622 are separate structures. Further, the hood shield 622 is slidably connected to the hood body 621, and is capable of sliding up and down along the hood body 621. A lifting device is connected between the fan housing baffle 622 and the fan housing body 621, and the lifting device is used for adjusting the fan housing baffle 622 to slide up and down. By arranging the lifting device, the height h1 of the rectifying fan cover 620 can be adjusted at any time, so that the air speed required by the radiator 610 can be adjusted at any time, and the influence on the air quantity of the whole machine is reduced as much as possible. The lifting device can be a gear rack lifting mechanism and the like, and can be driven in an automatic mode or a manual mode through a motor, hydraulic drive and the like.
In order to optimize the heat dissipation temperature field around the heat sink 610 and improve the heat dissipation efficiency, the airflow rectification cover 620 is provided with a heat dissipation air return opening, and the heat dissipation air return opening comprises a plurality of heat dissipation vent holes 6211. The bottom vent 6211 area height h2 may be determined based on the drive plate 510IPM module position. Because the heat generating temperatures of the heat sink 610 are different, the heat dissipation air return port is disposed at a position below the area with the highest temperature of the heat sink 610, so as to improve the heat dissipation effect.
In this embodiment, the electrical box 500 and the radiator 610 are disposed at the lower side of the air return opening 110, preferably at a position far away from the air return opening, and the longer the air cover is, the better the chimney effect is, the larger the heat dissipation return air volume is, and the better the heat dissipation effect is.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. An air conditioning indoor unit, comprising:
The upper part of the cabinet body is provided with an air return port on the air return side;
the evaporator and the fan are arranged in the cabinet body at the inner side of the return air inlet;
the compressor is arranged at the lower part of the cabinet body;
The electric appliance box is arranged in the cabinet body and is positioned below the return air inlet;
The heat dissipation device comprises a radiator and a rectification fan cover; the radiator is connected with the electric box and used for radiating heat for the electric box, and protrudes out of the cabinet body; the rectification fan cover is arranged on the outer side of the radiator, the upper end and the lower end of the rectification fan cover are opened, and a ventilation air channel is formed in the rectification fan cover; the negative pressure on the return air side enables the ventilation air duct to form air flow from bottom to top, and the air flow flows through the ventilation air duct from bottom to top to exchange heat with the radiator and then enters the cabinet body from the return air inlet.
2. The indoor unit of claim 1, wherein the cowling comprises:
the fan housing body is fixedly connected with the cabinet body;
The fan housing baffle, set up in the upside of fan housing body, the fan housing baffle is followed the fan housing body upwards extends, the upper end of fan housing baffle exceeds the lower edge of return air inlet, set up in the outside of return air inlet.
3. The indoor unit of claim 2, wherein the hood body and the hood baffle are of an integrally formed construction.
4. The indoor unit of claim 3, wherein the side surface of the fan housing body is provided with an outwardly turned folded edge, and the folded edge is fixedly connected with the cabinet body.
5. The indoor unit of claim 2, wherein the hood shield is slidably coupled to the hood body and is capable of sliding up and down along the hood body.
6. The indoor unit of claim 4, wherein a lifting device is connected between the hood baffle and the hood body, and the lifting device is used for adjusting the hood baffle to slide up and down.
7. An indoor unit for air conditioning according to any of claims 1-6, wherein the fairing is provided with a heat dissipation return air inlet, and the heat dissipation return air inlet includes a plurality of heat dissipation vents.
8. An indoor unit of air conditioner according to claim 7, wherein a driving plate is disposed in the electrical box, and the heat dissipation return air inlet is disposed at a position below the highest temperature region of the radiator.
9. An air conditioning indoor unit according to claim 1, wherein the fins of the radiator are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995647.8A CN112050295B (en) | 2020-09-21 | 2020-09-21 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995647.8A CN112050295B (en) | 2020-09-21 | 2020-09-21 | Indoor unit of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112050295A CN112050295A (en) | 2020-12-08 |
| CN112050295B true CN112050295B (en) | 2024-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995647.8A Active CN112050295B (en) | 2020-09-21 | 2020-09-21 | Indoor unit of air conditioner |
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| Country | Link |
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| CN (1) | CN112050295B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501939A (en) * | 2022-01-21 | 2022-05-13 | 珠海格力电器股份有限公司 | Electric appliance heat radiation structure of air conditioner and air conditioner |
| CN115507441A (en) * | 2022-09-26 | 2022-12-23 | 珠海格力电器股份有限公司 | Heat dissipation structure of electric appliance box, indoor unit, base station air conditioner and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212339439U (en) * | 2020-09-21 | 2021-01-12 | 青岛海信电子设备股份有限公司 | Indoor unit of air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100624739B1 (en) * | 1999-07-26 | 2006-09-18 | 엘지전자 주식회사 | Heat dissipation structure of printed circuit board of air conditioner |
| TWM339033U (en) * | 2008-04-16 | 2008-08-21 | Asia Vital Components Co Ltd | Heat sink |
| CN102355148A (en) * | 2011-10-10 | 2012-02-15 | 保定天威集团有限公司 | Direct exhaust type ventilating module for power unit of indoor high-power photovoltaic inverter |
| CN203442985U (en) * | 2013-07-26 | 2014-02-19 | 广东科龙空调器有限公司 | Heat-dissipating device for controller of variable-frequency air conditioner |
| CN103648251A (en) * | 2013-11-08 | 2014-03-19 | 高斌 | Radiator wind-scooper device with drainage and wind collecting function |
| CN210373823U (en) * | 2019-06-04 | 2020-04-21 | 珠海格力电器股份有限公司 | Electrical apparatus box heat radiation structure, off-premises station and air conditioner |
| CN110461136A (en) * | 2019-09-02 | 2019-11-15 | 珠海格力电器股份有限公司 | Electrical apparatus box heat radiation structure, electrical apparatus box structure and air conditioning equipment |
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2020
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212339439U (en) * | 2020-09-21 | 2021-01-12 | 青岛海信电子设备股份有限公司 | Indoor unit of air conditioner |
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Effective date of registration: 20230825 Address after: 266510 No. 218, Qian Wan Gang Road, Huangdao District, Qingdao, Shandong. Applicant after: Qingdao Hisense network energy Co.,Ltd. Address before: 266510 Room 201, building 1, Hisense Information Industrial Park, 218 qianwangang Road, Qingdao Economic and Technological Development Zone, Shandong Province Applicant before: QINGDAO HISENSE ELECTRONICS EQUIPMENT Co.,Ltd. |
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