CN215570910U - Water curtain device and air cooler - Google Patents
Water curtain device and air cooler Download PDFInfo
- Publication number
- CN215570910U CN215570910U CN202120791301.6U CN202120791301U CN215570910U CN 215570910 U CN215570910 U CN 215570910U CN 202120791301 U CN202120791301 U CN 202120791301U CN 215570910 U CN215570910 U CN 215570910U
- Authority
- CN
- China
- Prior art keywords
- water
- curtain
- water curtain
- holes
- passing plate
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a water curtain device and an air cooler, wherein the water curtain device comprises a water curtain frame, a water passing plate and a wet curtain, and the water curtain frame is provided with a water inlet side and a water outlet side which are arranged along the vertical direction; the water passing plate is arranged on the water inlet side of the water curtain frame and provided with a front surface, a rear surface and a bottom surface connecting the front surface and the rear surface, a plurality of through holes are formed in the water passing plate, the through holes penetrate through the front surface, the rear surface and the bottom surface, and the aperture of each through hole is gradually reduced from the water inlet side to the water discharge side; the wet curtain is installed on the water curtain frame and used for guiding water passing through the holes to flow into the drainage side. According to the technical scheme, the aperture of the through hole in the water curtain device is gradually reduced from the water inlet side to the water discharge side, so that the water flow is ensured to flow downwards along the extension direction of the through hole, the water flow direction is ensured to flow to the wet curtain from the water inlet side, the utilization rate of water is improved, and the cooling effect of the water curtain device is further improved.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to a water curtain device and an air cooler.
Background
The cooling of the wet curtain air cooler is realized by uninterruptedly pumping water in a water receiving tray by a circulating water pump and uniformly spraying the water on an evaporation filter layer through a water distribution system, so that outdoor hot air is subjected to heat exchange with water in an evaporation heat exchanger (evaporation wet curtain) and is cooled and cool through water evaporation, and clean air is pressurized and sent into a room by a low-noise fan so as to achieve the cooling effect. The cascade device on the existing market has the problem of poor cooling effect because of the water outlet is inhomogeneous, and the water outlet direction changes easily.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a water curtain device and aims to improve the cooling effect of the water curtain device.
In order to achieve the purpose, the water curtain device provided by the utility model comprises a water curtain frame, a water passing plate and a wet curtain; the water curtain frame is provided with a water inlet side and a water outlet side which are arranged along the up-down direction; the water passing plate is arranged on the water inlet side of the water curtain frame and provided with a front surface, a rear surface and a bottom surface connecting the front surface and the rear surface, a plurality of through holes are formed in the water passing plate, the through holes penetrate through the front surface, the rear surface and the bottom surface, and the hole diameter of each through hole is gradually reduced from the water inlet side to the water discharge side; the wet curtain is installed on the water curtain frame to guide the water passing through the holes to flow into the drainage side.
Optionally, the passing hole comprises a first water outlet section and a second water outlet section, the aperture of the first water outlet section is gradually reduced from the water inlet side to the water discharge side, and the aperture of the second water outlet section is connected with the tail end of the first water outlet section and is the same as the aperture of the tail end of the first water outlet section.
Alternatively, the plurality of through holes extend in the length direction of the drainage side and are located at the same level, and the intervals between every two adjacent through holes are the same.
Optionally, the water inlet side further comprises a water storage cavity, the water storage cavity is provided with a water inlet, the water passing plate forms a front cavity wall of the water storage cavity, and a center line of the through hole is perpendicular to a cavity bottom wall of the water storage cavity.
Optionally, the reservoir chamber is provided with a guiding surface which slopes from a bottom wall of the reservoir chamber towards the second outlet section of the through bore.
Optionally, the lower plate surface of the water passing plate is aligned with the lower side edge of the guide surface.
Optionally, the drainage side of the water curtain frame further comprises a water outlet and a drainage platform, and the drainage platform is obliquely arranged towards the water outlet from one end far away from the water outlet.
Optionally, a limiting buckle is arranged on the water curtain frame and used for fixing the wet curtain.
Optionally, the water curtain frame and the water passing plate are of an integral structure.
The utility model also provides an air cooler which comprises the water curtain device.
According to the technical scheme, the aperture of the through hole in the water curtain device is gradually reduced from the water inlet side to the water discharge side, so that the water flow is ensured to flow downwards along the extension direction of the through hole, the water flow direction is ensured to flow to the wet curtain from the water inlet side, the utilization rate of water is improved, and the cooling effect of the water curtain device is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a water curtain apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of another embodiment of a water curtain apparatus;
FIG. 3 is a schematic view of a water curtain apparatus according to another embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic view of a water curtain apparatus according to another embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic view of a water curtain apparatus according to another embodiment of the present invention;
fig. 8 is a schematic structural view of another view angle of an embodiment of a water curtain apparatus of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Water curtain device | 100 | |
| 110 | Side of |
111 | |
| 113 | |
130 | Side of |
| 131 | Water outlet | 133 | |
| 200 | |
210 | Through the hole |
| 210a | Front surface of |
210b | Rear surface of |
| 210c | Bottom surface of |
211 | The first |
| 213 | The second |
230 | |
| 300 | |
400 | |
| 410 | Limiting assembly |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a water curtain apparatus 10.
In the embodiment of the present invention, as shown in fig. 1 to 8, the water curtain apparatus 10 includes a water curtain frame 100, a water passing plate 200, and a wet curtain 300, the water curtain frame 100 having a water inlet side 110 and a water outlet side arranged in an up-down direction; the water passing plate 200 is arranged on the water inlet side 110 of the water curtain frame 100, the water passing plate 200 is provided with a water passing plate front surface 210a, a water passing plate rear surface 210b and a water passing plate bottom surface 210c connected with the water passing plate front surface 210a and the water passing plate rear surface 210b, the water passing plate 200 is provided with a plurality of through holes 210, the through holes 210 penetrate through the water passing plate front surface 210a, the water passing plate rear surface 210b and the water passing plate bottom surface 210c, and the aperture of the through holes 210 is gradually reduced from the water inlet side 110 to the water discharge side; the wet curtain 300 is installed on the water curtain frame 100 to guide the water passing through the holes 210 to the drain side.
The water curtain device 10 includes a water curtain frame 100, and the water curtain frame 100 has a water inlet side 110 and a water discharge side disposed in an up-down direction. The water inlet side 110 of the water curtain frame 100 is connected to a water pipe, and the water outlet side is connected to a water storage tank, so that the water curtain device 10 and the air cooler form a water circulating device.
As shown in fig. 1 to 6, the water passing plate 200 is disposed on the water inlet side 110 of the water curtain frame 100, the water passing plate 200 has a water passing plate front surface 210a, a water passing plate rear surface 210b, and a water passing plate bottom surface 210c connecting the water passing plate front surface 210a and the water passing plate rear surface 210b, the water passing plate 200 is provided with a plurality of through holes 210, the through holes 210 penetrate through the water passing plate front surface 210a, the water passing plate rear surface 210b, and the water passing plate bottom surface 210c, and the hole diameters of the through holes 210 gradually decrease from the water inlet side 110 to the water outlet side. Water enters from the water inlet side 110 through the holes 210 penetrating through the water plate front surface 210a, the water passing plate rear surface 210b and the water passing plate bottom surface 210c, passes through the water passing plate rear surface 210b of the holes 210 and flows out of the water passing plate bottom surface 210 c; the aperture of clearing hole 210 is by intaking side 110 and reducing towards the drainage side gradually, so set up, when rivers crossed clearing hole 210, water can receive top-down progressively increased pressure, guarantees that rivers can follow the extending direction downstream of clearing hole 210, ensures that rivers direction flows to wet curtain 300 from side 110 that intakes and flows to the drainage side again, has improved the utilization ratio of water, and then has improved cascade device 10's cooling effect.
As shown in fig. 1 and 2, the wet curtain 300 is installed on the water curtain frame 100 to guide the water passing through the holes 210 to the drain side. The water curtain is arranged on the water curtain frame 100, when water flow passes through the wet curtain 300 to wet the wet curtain 300, a large amount of water is evaporated when unsaturated air passes through the wet curtain 300, so that the temperature of the air is reduced, the air is blown to each corner by a fan, the temperature is rapidly reduced, and the wet curtain 300 reaches a medium which can rapidly reduce the temperature and is low in cost; in this embodiment, when water passes through the through holes 210 on the water plate 200, it can be ensured that water flows downwards through the extending direction of the through holes 210, and it is further ensured that water flows towards the wet curtain 300, so that the utilization rate of water is improved, and it is also ensured that the wet curtain 300 can be constantly wetted by water, and the cooling effect is improved.
According to the technical scheme, the aperture of the through hole 210 in the water curtain device 10 is gradually reduced from the water inlet side 110 to the water discharge side, so that water flow is ensured to flow downwards along the extension direction of the through hole 210, the water flow direction is ensured to flow to the wet curtain 300 from the water inlet side 110, the water utilization rate is improved, and the cooling effect of the water curtain device 10 is further improved.
In one embodiment of the present invention, as shown in fig. 2, the passing hole 210 comprises a first water outlet section 211 and a second water outlet section 213, the aperture of the first water outlet section 211 gradually decreases from the water inlet side 110 to the water outlet side, and the second water outlet section 213 is connected to the end of the first water outlet section 211 and has the same aperture as the end of the first water outlet section 211. The aperture of the first water outlet section 211 gradually decreases from the water inlet side 110 to the water outlet side 130, and when the aperture decreases to a certain degree, the aperture of the second water outlet section 213 is the aperture, and the apertures of the second water outlet section 213 are all the same, as can be understood, the apertures of the first water outlet section 211 and the second water outlet section 213 can be arranged in a "Y" shape, so that when water flows through the through holes 210, the water can be subjected to pressure which gradually increases from top to bottom, it is ensured that the water flows downwards along the extending direction of the through holes 210, it is ensured that the water flows from the water inlet side 110 to the wet curtain 300 and then to the water outlet side, the utilization rate of the water is improved, and further, the cooling effect of the water curtain device 10 is improved.
In an embodiment of the present invention, as shown in fig. 1 to 6, the plurality of through holes 210 extend along the length direction of the drainage side and are located at the same horizontal height, and the intervals between two adjacent through holes 210 are the same. Cross and be provided with a plurality of clearing holes 210 on the water board 200, the same level of a plurality of clearing holes 210 sets up, and extend along the length direction of drainage side, wet curtain 300 locates the below of crossing water board 200, the same level of a plurality of clearing holes 210 sets up, can guarantee that wet curtain 300 all is covered by water board 200 along each part of length direction, cross each part that water board 200 can evenly flow water to wet curtain 300 promptly, guarantee the wet area of wetting curtain 300, improve the utilization ratio of wet curtain 300, and then improved the cooling effect of water curtain device 10.
In an embodiment of the present invention, as shown in fig. 1 and 7, the water inlet side 110 further includes a water storage cavity 111, the water storage cavity 111 is provided with a water inlet 113, the water passing plate 200 is formed as a front side cavity wall of the water storage cavity 111, and a center line of the through hole 210 is arranged perpendicular to a cavity bottom wall of the water storage cavity 111. The arrangement that the centre line of the through hole 210 is perpendicular to the bottom wall of the reservoir cavity 111, i.e. the centre axis of the water passing plate 200 is perpendicular to the bottom wall of the reservoir cavity 111, ensures that the resistance to the water flow and the rate of flow out through the hole 210 are optimal; when the angle between the center line of the through hole 210 and the bottom wall of the water storage cavity 111 is too small, the water flow contacts the first water outlet section 211 firstly and flows out of the first water outlet section 211, the direction of the water flow is not changed, the water flow flows out of the front surface 210a of the water passing plate, and the water flow does not flow to the wet curtain 300, so that the wetting effect is not achieved, and the effect of the water curtain device 10 is influenced; when the angle between the center line of the through hole 210 and the bottom wall of the reservoir chamber 111 is too large, the pressure applied to the water flow passing through the through hole 210 will be increased, which will affect the speed of the water flow and reduce the flow rate of the water, thus slowing down the wetting effect of the wet curtain 300, on the one hand, and on the other hand, the reservoir chamber 111 will store too much water, which is likely to cause water leakage. Therefore, the central line of the through hole 210 is perpendicular to the bottom wall of the water storage cavity 111, so that water can flow to the wet curtain 300, the utilization rate of the water is improved, and the cooling effect is improved.
In an embodiment of the utility model, as shown in fig. 1 and 6, the reservoir chamber 111 is provided with a guide surface 230, the guide surface 230 sloping from the bottom wall of the reservoir chamber 111 towards the second outlet section 213 through the aperture 210. The guiding surface 230 is arranged such that, on the one hand, in case of a small flow of water, the flow of water can flow directly to the second outlet section 213, and when flowing through the guiding surface 230, the flow of water flows downwards due to the inclined section, and due to gravity, the flow of water can be accelerated by the effect of gravity, thereby accelerating the flow of water through the through hole 210; on the other hand, when the water flow is large, the water is pressurized when flowing through the through holes 210, and does not flow out from the through holes 210 immediately, but gradually permeates from the bottom of the through holes 210, so that the water is stored in the inverted triangular space formed by the guide surface 230, the water passing plate 200 and the bottom wall of the water storage cavity 111, and gradually flows out from the second water outlet section 213 to the bottom of the through holes 210, thereby further ensuring the direction of the water flow and improving the cooling effect of the water curtain device 10.
In an embodiment of the present invention, as shown in fig. 1 to 8, the lower plate surface of the water passing plate 200 is aligned with the lower side edge of the guide surface 230. The arrangement is favorable for the water flow to get rid of surface tension, and the direction of the water flow cannot be changed, so that the water keeps flowing downwards; when the lower plate surface of the water passing plate 200 is lower than the lower side edge of the guide surface 230 and the water flows through a small amount of water, the water flows toward the bottom of the guide surface 230 due to the force after passing through the through holes 210, so that the water cannot flow toward the wet curtain 300, the wetting effect of the wet curtain 300 is reduced, and the cooling effect cannot be satisfied. Therefore, the lower plate surface of the water passing plate 200 is aligned with the lower side edge of the guide surface 230, so that the water can flow to the wet curtain 300, the utilization rate of the water is improved, and the cooling effect is improved.
In an embodiment of the present invention, as shown in fig. 1, the drainage side of the water curtain frame 100 further includes a water outlet 131 and a drainage platform 133, the water outlet 131 is lower than the drainage platform 133 in level, and the drainage platform 133 is disposed to be inclined toward the water outlet 131 from an end far away from the water outlet 131. The water flows to the wet curtain 300, most of the water is absorbed by the wet curtain 300, the rest of the water continues to flow downwards to the water discharge side, and the water discharge side can collect the water which is not used for uniform treatment for the next device or convey the water to the water inlet side 110 again for recycling. The drainage platform 133 is set up towards delivery port 131 slope by the one end of keeping away from delivery port 131, because water flows into wet curtain 300 from different directions, and then can flow out from wet curtain 300 from different directions, and delivery port 131 only has one and locates one of them side of drainage side, can understand ground, so the slope is provided with and helps the water that the distal end flows out to flow to delivery port 131 more fast, the efficiency of delivery port water collection has been accelerated, and then the further processing of water has been accelerated, the work efficiency of device has been improved.
In an embodiment of the present invention, as shown in fig. 1 to 8, a limit buckle 400 is disposed on the water curtain frame 100, and the limit buckle 400 is used for fixing the wet curtain 300. The both sides of cascade frame 100 are equipped with spacing buckle 400, and spacing buckle 400 cooperates with spacing subassembly 410, during the use, only needs to take down spacing subassembly 410, will wet curtain 300 install cascade frame 100 on, aligns the installation with spacing subassembly 410 and spacing buckle 400 again, can realize the fixed mounting to wet curtain 300, has improved the installation effectiveness of wet curtain 300, makes things convenient for the installation and the taking off of wet curtain 300.
In an embodiment of the present invention, the water curtain frame 100 and the water passing plate 200 are an integral structure. The setting of an organic whole structure for cascade frame 100 and cross water board 200 can be in the integrative injection moulding of same set of mould, need not to use different moulds to cascade frame 100 and cross water board 200 and carry out preparation respectively, can only need once to mould plastics the drawing of patterns under same mould and handle and can obtain a complete cascade device 10.
Furthermore, only one set of mold is needed when the water curtain device 10 is manufactured, so that the mold can be saved, the resource investment can be saved, and the cost can be effectively reduced.
The utility model further provides an air cooler, which comprises the water curtain device 10, the specific structure of the water curtain device 10 refers to the above embodiments, and the air cooler adopts all the technical schemes of all the embodiments, so that the air cooler at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A water curtain apparatus, comprising:
the water curtain frame is provided with a water inlet side and a water outlet side which are arranged along the vertical direction;
the water passing plate is arranged on the water inlet side of the water curtain frame and provided with a front surface, a rear surface and a bottom surface connected with the front surface and the rear surface, a plurality of through holes are formed in the water passing plate, the through holes penetrate through the front surface, the rear surface and the bottom surface, and the hole diameter of each through hole is gradually reduced from the water inlet side to the water discharge side; and
a wet curtain mounted on the water curtain frame for guiding the water passing through the holes to flow into the drain side.
2. The apparatus of claim 1, wherein said passage openings comprise a first exit section having a diameter that decreases from said entry side toward said exit side and a second exit section that is connected to the end of said first exit section and has the same diameter as the end of said first exit section.
3. The water curtain apparatus as claimed in claim 1, wherein a plurality of said passing holes extend in a length direction of said drain side at the same level, and the interval between adjacent two of said passing holes is the same.
4. The water curtain apparatus as claimed in claim 1, wherein said inlet side further comprises a reservoir chamber, said reservoir chamber having an inlet opening, said water passing plate forming a front wall of said reservoir chamber, a center line of said passage hole being disposed perpendicular to a chamber bottom wall of said reservoir chamber.
5. A water curtain device as claimed in claim 4, wherein the reservoir chamber is provided with a guide surface which slopes from the bottom wall of the reservoir chamber in the direction of the second outlet section through the aperture.
6. The water curtain apparatus of claim 5 wherein the lower plate surface of said water passing plate is aligned with the lower side edge of said guide surface.
7. The apparatus of claim 1, wherein said drain side of said curtain frame further comprises a water outlet and a drain stand, said drain stand being inclined toward said water outlet from an end remote from said water outlet.
8. The water curtain device as claimed in claim 1, wherein a limit buckle is provided on the water curtain frame, and the limit buckle is used for fixing the wet curtain.
9. The apparatus of any one of claims 1 to 4, wherein the water curtain frame is of unitary construction with the water passing panel.
10. An air cooler characterized by comprising the water curtain device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120791301.6U CN215570910U (en) | 2021-04-16 | 2021-04-16 | Water curtain device and air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120791301.6U CN215570910U (en) | 2021-04-16 | 2021-04-16 | Water curtain device and air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570910U true CN215570910U (en) | 2022-01-18 |
Family
ID=79856451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120791301.6U Active CN215570910U (en) | 2021-04-16 | 2021-04-16 | Water curtain device and air cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215570910U (en) |
-
2021
- 2021-04-16 CN CN202120791301.6U patent/CN215570910U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113188206A (en) | Water curtain device and air cooler | |
| CN206361821U (en) | Drip tray and indoor apparatus of air conditioner | |
| CN217209761U (en) | Wet curtain structure of humidifier | |
| CN113835502A (en) | Liquid cooling system and immersion type cooling installation box thereof | |
| CN215570910U (en) | Water curtain device and air cooler | |
| CN209819704U (en) | Machine and air conditioner in suspension type air conditioning | |
| CN211345943U (en) | Liquid distributor, falling film heat exchanger and air conditioner | |
| CN210773646U (en) | Spraying device for closed cooling tower | |
| CN112503967B (en) | Counter-flow wet cooling tower | |
| CN215930675U (en) | Water spraying filler arrangement structure of fog dissipation and water saving cooling tower | |
| CN205245495U (en) | Heat exchanger water receiving structure and air conditioner | |
| CN211695336U (en) | Hydrophobic separation blade, hydrophobic device and evaporation condensing equipment | |
| JP2008128595A (en) | Auxiliary cooling device for condenser | |
| CN2611797Y (en) | Air conditioner arranged with condensed water treatment device | |
| CN216204486U (en) | Integral evaporative condenser | |
| CN215933800U (en) | Jet impact cold plate structure | |
| CN218154520U (en) | Distributed water spraying structure and mobile air conditioner | |
| CN220707788U (en) | Evaporation type condenser | |
| CN219347425U (en) | Wall spraying module | |
| CN213714011U (en) | Waste heat power generation cooling water heat dissipation tower | |
| CN220061957U (en) | Water drenching device, drainage equipment and air conditioner | |
| CN210951980U (en) | Heat exchanger | |
| CN215864008U (en) | Liquid distributor and condenser heat radiation structure applying same | |
| CN209819706U (en) | Machine and air conditioner in suspension type air conditioning | |
| CN216282011U (en) | Air conditioner condensate water treatment structure and air conditioner comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 11, Xinyou East Road, Shunde high tech Zone, Ronggui Bianjiao, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Hailunbao household appliances Co.,Ltd. Address before: No. 11, Xinyou East Road, Shunde high tech Zone, Ronggui Bianjiao, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE HELENBO ELECTRICAL APPLIANCE Co.,Ltd. |