CN213514223U - Evaporation type refrigeration fan - Google Patents
Evaporation type refrigeration fan Download PDFInfo
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- CN213514223U CN213514223U CN202022461694.2U CN202022461694U CN213514223U CN 213514223 U CN213514223 U CN 213514223U CN 202022461694 U CN202022461694 U CN 202022461694U CN 213514223 U CN213514223 U CN 213514223U
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Abstract
The utility model discloses an evaporative cooling fan, including shell main part, first fan, second fan and locate the refrigeration mechanism in the shell main part, refrigeration mechanism includes evaporimeter and heat exchanger, form the cold wind channel between first fan and evaporimeter, be equipped with first water storage dish and second water storage dish in the shell main part, be equipped with the raceway that is used for carrying the comdenstion water between first water storage dish and the second water storage dish, first water storage dish is located the evaporimeter bottom, the heat exchanger is located second water storage dish, be formed with between heat exchanger and the second fan and discharge the wind channel. The trouble of manually and periodically removing the condensed water generated by the machine is saved, the workload is reduced, meanwhile, the condensed water is prevented from overflowing fully, and the wet and slippery ground is avoided.
Description
Technical Field
The utility model belongs to the technical field of refrigeration plant, concretely relates to evaporation formula refrigeration fan.
Background
Present cooling fan is in the course of the work, and the comdenstion water that the refrigeration produced directly discharges and collects in the outer water storage bucket of machine, needs the artifical comdenstion water of regularly detaching in the water storage bucket, and the operation of pouring water is relapse, leads to more troublesome, and has improved work load, if can not in time detach the comdenstion water of collecting, fills easily and overflows, leads to ground wet and smooth, has the potential safety hazard.
Disclosure of Invention
An object of the utility model is to provide an evaporation formula refrigeration fan saves the artifical trouble of regularly detaching the comdenstion water that the machine produced, reduces work load, prevents simultaneously that the comdenstion water from overflowing, avoids the ground wet and smooth.
The technical scheme is as follows:
the evaporative cooling fan comprises a shell main body, a first fan, a second fan and a cooling mechanism arranged in the shell main body, wherein the cooling mechanism comprises an evaporator and a heat exchanger, a cold air duct is formed between the first fan and the evaporator, a first water storage disc and a second water storage disc are arranged in the shell main body, a water delivery pipe used for delivering condensed water is arranged between the first water storage disc and the second water storage disc, the first water storage disc is positioned at the bottom of the evaporator, the heat exchanger is positioned in the second water storage disc, and a discharge air duct is formed between the heat exchanger and the second fan.
In one embodiment, a cooling water tray is further arranged in the housing main body, a plurality of through holes are formed in the cooling water tray, the refrigerating mechanism further comprises a condenser, the condenser is located at the bottom of the cooling water tray, the second water storage tray is located at the bottom of the condenser, the water delivery pipe comprises a water delivery end and a water drainage end, the water delivery end is communicated with the first water storage tray, and the water drainage end is communicated with the cooling water tray.
In one embodiment, the shell main body comprises a first box body and a second box body, the evaporator, the first water storage disc and the first fan are located in the first box body, the heat exchanger, the condenser, the cooling water disc and the second water storage disc are located in the second box body, the first box body is located below the second box body, a water pump is installed in the first box body, and the water pump is located between the water delivery end and the water discharge end of the water delivery pipe.
In one embodiment, the shell body is further provided with a cooling water tray, the cooling water tray is provided with a plurality of through holes, the refrigerating mechanism further comprises a condenser, the condenser is located at the bottom of the cooling water tray, the second water storage tray is located at the bottom of the condenser, the number of the water conveying pipes is two, one water conveying pipe is communicated with the first water storage tray and the second water storage tray, and the other water conveying pipe is communicated with the second water storage tray and the cooling water tray.
In one embodiment, the housing main body includes a first box and a second box, the evaporator, the first water storage tray and the first fan are located in the first box, the heat exchanger, the condenser, the cooling water tray and the second water storage tray are located in the second box, the first box is located below the second box, a first water pump is installed in the first box, the first water pump is located between the first water storage tray and the second water storage tray and connected to a water pipe communicating the first water storage tray and the second water storage tray, a second water pump is installed in the second box, and the second water pump is located between the second water storage tray and the cooling water tray and connected to a water pipe communicating the second water storage tray and the cooling water tray.
In one embodiment, liquid level trigger mechanisms are arranged in the first water storage tray and the second water storage tray, the liquid level trigger mechanism in the first water storage tray is electrically connected with the first water pump, and the liquid level trigger mechanism in the second water storage tray is electrically connected with the second water pump.
In one embodiment, the bottoms of the first water storage tray and the second water storage tray are both formed with water storage cavities in a concave manner, and the two liquid level trigger mechanisms are respectively and correspondingly located in the two water storage cavities.
In one embodiment, an overflow water return pipe is arranged between the first water storage tray and the second water storage tray, the overflow water return pipe comprises a water inlet end and a water outlet end, the water inlet end is communicated with the second water storage tray, and the water outlet end is arranged towards the inside of the first water storage tray.
In one embodiment, an overflow pipe is connected to the first water storage tray, and the overflow pipe extends to the outside of the housing main body.
In one embodiment, a first drain pipe is connected to the first water storage tray, a second drain pipe is connected to the second water storage tray, the second drain pipe extends towards the first water storage tray, and the first drain pipe extends out of the shell body.
The utility model provides a technical scheme has following advantage and effect:
in the working process of the machine, cold air is blown out through the cold air duct to realize cooling; condensed water generated by the evaporator is collected into the first water storage disc, the condensed water is conveyed into the second water storage disc through a water conveying pipe, a heat exchanger in the second water storage disc generates heat when working, the condensed water in the second water storage disc is heated and evaporated, and water vapor is pumped out of the machine through a discharge air channel by a second fan; the comdenstion water that the machine produced is heated the evaporation, does not need the manual work to detach the comdenstion water that the machine produced regularly, saves the trouble of pouring water, reduces work load, can prevent simultaneously that the comdenstion water of not in time detaching and lead to water to overflow, avoids the ground wet and smooth.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles, principles and effects of the invention.
Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.
Fig. 1 is a schematic view of an overall structure of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 2 is a schematic view of an internal structure of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a cooling water tray in an evaporative cooling fan according to an embodiment of the present invention.
Fig. 4 is a schematic view of an internal structure of a first box of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 5 is a schematic view of an internal structure of a second box of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 6 is a schematic view of the structural connection of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 7 is a diagram of a structure of delivering condensed water of an evaporative cooling fan according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a spiral heat exchanger in an evaporative cooling fan according to an embodiment of the present invention.
Fig. 9 is a structure diagram of the condensed water delivery of the triple-evaporation type refrigeration fan according to the embodiment of the present invention.
Description of reference numerals:
10. a housing main body; 11. a first case; 12. a second case; 20. a first fan; 21. swinging the blade window; 30. an evaporator; 40. a heat exchanger; 50. a first water storage tray; 501. a water storage cavity; 51. a second water storage tray; 52. a water delivery pipe; 53. an overflow return pipe; 54. an overflow pipe; 55. a first water pump; 56. a liquid level trigger mechanism; 57. a second water pump; 60. a cooling water pan; 61. a through hole; 70. a condenser; 80. a second fan; 81. a fan housing; 90. a compressor; 91. a throttling element; 92. a refrigeration connecting pipe; 93. a first drain pipe; 94. a second sewage draining pipe; 95. a first waste valve; 96. and a second blowdown valve.
Detailed Description
In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.
Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solution of the present invention with realistic scenarios, all technical and scientific terms used herein may also have meanings corresponding to the objects of realizing the technical solution of the present invention.
As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
As used herein, unless otherwise specified or defined, the terms "comprises," "comprising," and "comprising" are used interchangeably to refer to the term "comprising," and are used interchangeably herein.
It is needless to say that technical contents or technical features which are contrary to the object of the present invention or clearly contradict each other should be excluded.
The first embodiment is as follows:
as shown in fig. 1 to 7, the present embodiment discloses an evaporative cooling fan, which includes a housing main body 10, a first fan 20, a second fan 80, and a cooling mechanism disposed in the housing main body 10, wherein the cooling mechanism is formed by circularly connecting a compressor 90, an evaporator 30, a condenser 70, a throttling element 91, and a heat exchanger 40 through a cooling connection pipe 92, in the present embodiment, the heat exchanger 40 adopts a water-cooled heat exchanger 40, a cold air duct is formed between the first fan 20 and the evaporator 30, a swinging blade window 21 is mounted near the first fan 20, a first water storage tray 50 and a second water storage tray 51 are disposed in the housing main body 10, a water pipe 52 for conveying condensed water is disposed between the first water storage tray 50 and the second water storage tray 51, the first water storage tray 50 is disposed at the bottom of the evaporator 30, the heat exchanger 40 is disposed in the second water storage tray 51, and the second water storage fan 80, A discharge air duct for discharging the water vapor to the outside of the machine is formed between the heat exchanger 40 and the condenser 70. In the working process of the machine, cold air is blown out through the cold air duct to realize cooling; the condensed water generated by the evaporator 30 is collected in the first water storage disc 50, the condensed water is conveyed to the second water storage disc 51 through the water conveying pipe 52, the heat exchanger 40 generates heat, the condensed water in the second water storage disc 51 is heated and evaporated, and the water vapor is pumped out of the machine through the exhaust air channel by the second fan 80 and is exhausted to the outside of the machine; the comdenstion water that the machine produced is heated the evaporation, does not need the manual work to detach the comdenstion water that the machine produced regularly, saves the trouble of pouring water repeatedly, reduces work load, can prevent simultaneously that the comdenstion water of can not in time detaching and lead to water to overflow, avoids the ground wet and smooth.
As shown in fig. 1 to 3, a cooling water tray 60 is further disposed in the housing main body 10, a plurality of through holes 61 are uniformly formed in the cooling water tray 60, the condenser 70 is located at the bottom of the cooling water tray 60, the second water storage tray 51 is located at the bottom of the condenser 70, the water pipe 52 includes a water conveying end and a water discharging end, the water conveying end is communicated with the first water storage tray 50, and the water discharging end is communicated with the cooling water tray 60. After being collected to the first water storage tray 50, the condensed water generated by the evaporator 30 is firstly conveyed to the cooling water tray 60, is scattered to the outer surface of the condenser 70 through the plurality of through holes 61, and is finally collected by the second water storage tray 51; before being heated and evaporated by the heat exchanger 40, the condensed water firstly falls onto the outer surface of the condenser 70, and the high temperature on the surface of the condenser 70 carries out first evaporation on the condensed water, so that the condensed water is heated twice, and the evaporation rate is improved; the condensed water can assist the condenser 70 in heat dissipation, so that the refrigeration efficiency is improved, and the condensed water is reused before evaporation, so that the energy is saved; and the sectional shape of the cooling water tray 60 is arranged corresponding to the sectional shape of the condenser 70, so that the condensed water in the cooling water tray 60 can be uniformly scattered on the outer surface of the condenser 70.
As shown in fig. 1 to 5, the housing main body 10 includes a first box 11 and a second box 12, the compressor 90, the evaporator 30, the first water storage tray 50 and the first fan 20 are located in the first box 11, the heat exchanger 40, the condenser 70, the cooling water tray 60 and the second water storage tray 51 are located in the second box 12, the first box 11 is located below the second box 12, a first water pump 55 is installed in the first box 11, and the first water pump 55 is located between a water delivery end and a water discharge end of the water delivery pipe 52 and is respectively communicated with the water delivery end and the water discharge end. The heat exchanger 40, the condenser 70, the cooling water tray 60 and the second water storage tray 51 are arranged on the second box body 12, so that the discharge of water vapor is facilitated; the first water pump 55 is provided to provide power to facilitate the transport of the collected condensate water in the first water storage tray 50.
As shown in fig. 6, a liquid level trigger mechanism 56 is disposed in the first water storage tray 50, and the liquid level trigger mechanism 56 is electrically connected to the first water pump 55. A liquid level trigger mechanism 56 is provided, and when the liquid level is higher than a set high liquid level, the first water pump 55 is started, and when the liquid level is lower than a set low liquid level, the first water pump 55 stops.
The bottom of the first water storage tray 50 is recessed to form a water storage cavity 501, in this embodiment, the height of the water storage cavity 501 is greater than that of the first water storage tray 50, and the liquid level trigger mechanism 56 is located in the water storage cavity 501. Through the above arrangement, the amount of collected condensed water is increased, and meanwhile, under the condition that the internal space of the machine is occupied as little as possible, a large height difference exists in the first water storage disc 50, and the liquid level trigger mechanism 56 is favorable for working.
The first water pump 55 may be a submersible pump (not shown), the first water pump 55 is installed in the water storage cavity 501 of the first water storage tray 50, when in use, the first water pump 55 is soaked in water, and the water delivery end of the water delivery pipe 52 is directly connected to the outlet of the first water pump 55.
An overflow return pipe 53 is arranged between the first water storage disc 50 and the second water storage disc 51, the overflow return pipe 53 comprises a water inlet end and a water outlet end, the water inlet end is communicated with the second water storage disc 51, and the water outlet end is arranged towards the inside of the first water storage disc 50. The condensed water is collected into the second water storage tray 51, heated by the heat exchanger 40 and then returned to the first water storage tray 50 through the overflow return pipe 53, so that the second water storage tray 51 is prevented from overflowing; meanwhile, an overflow water return pipe 53 is arranged, so that when the first water pump 55 stops working, the backflow condensate water causes the second water storage disc 51 to overflow, and the first water pump 55 cannot be normally started next time.
An overflow pipe 54 is connected to the first water storage tray 50, and the overflow pipe 54 extends to the outside of the housing main body 10. By providing the overflow pipe 54, emergency drainage is prepared.
As shown in fig. 4 and 5, a first drain pipe 93 is connected to the bottom of the water storage cavity 501, a second drain pipe 94 is connected to the bottom of the second water storage tray 51, the second drain pipe 94 extends towards the first water storage tray 50, and the first drain pipe 93 extends out of the housing main body 10; a first drain valve 95 is arranged on the first drain pipe 93, and a second drain valve 96 is arranged on the second drain pipe 94. Through the above arrangement, the first blowoff valve 95 and the second blowoff valve 96 are opened, and the filth such as sand and mud in the second water storage tray 51 is discharged to the first water storage tray 50 through the second blowoff pipe 94, and then is discharged to the outside of the machine together with the filth in the first water storage tray 50 through the first blowoff pipe 93.
The housing body 10 is further provided with a fan housing 81, and the fan housing 81 covers the second fan 80. The provision of the hood 81 facilitates protection of the second fan 80, as well as protection of the internal structure of the machine.
It should be noted that the installation settings of the second fan 80 and the air cover 81 can be selectively set on the side wall or the top of the second box 12 according to actual requirements.
Example two:
the embodiment also discloses an evaporative cooling fan, which is different from the first embodiment in that:
as shown in fig. 8, the heat exchanger 40 adopts a spiral water heat exchanger 40, so that the heat exchange area of the heat exchanger 40 is increased, the contact area between the heat exchanger 40 and the condensed water is increased, and the evaporation rate of the condensed water is increased.
Example three:
the embodiment also discloses an evaporative cooling fan, which is different from the first embodiment in that:
as shown in fig. 9, there are two water conveying pipes 52, wherein one water conveying pipe 52 communicates the first water storage tray 50 and the second water storage tray 51, and the other water conveying pipe 52 communicates the second water storage tray 51 and the cooling water tray 60. Through the above arrangement, two water circulation paths are formed, one is the water circulation path between the first water storage tray 50 and the second water storage tray 51, and the other is the water circulation path between the second water storage tray 51 and the cooling water tray 60, so that the transmission rate of the condensed water is improved, and further, the evaporation rate is improved.
A first water pump 55 is installed in the first box body 11, the first water pump 55 is located between the first water storage tray 50 and the second water storage tray 51 and is connected with a water pipe 52 communicating the first water storage tray 50 with the second water storage tray 51, a second water pump 57 is installed in the second box body 12, and the second water pump 57 is located between the second water storage tray 51 and the cooling water tray 60 and is connected with the water pipe 52 communicating the second water storage tray 51 with the cooling water tray 60. By arranging water pumps on the two water circulation paths to provide water circulation power, the transmission rate of the condensed water is further improved.
Liquid level trigger mechanisms 56 are arranged in the first water storage disc 50 and the second water storage disc 51, the liquid level trigger mechanisms 56 in the first water storage disc 50 are electrically connected with the first water pump 55, and the liquid level trigger mechanisms 56 in the second water storage disc 51 are electrically connected with the second water pump 57. The bottoms of the first water storage tray 50 and the second water storage tray 51 are both formed with water storage cavities 501 in a recessed manner, and the two liquid level trigger mechanisms 56 are respectively and correspondingly located in the two water storage cavities 501. Two liquid level trigger mechanisms 56 are arranged, in the first water storage disc 50, when the liquid level is higher than a set high liquid level, the first water pump 55 is started, and when the liquid level is lower than a set low liquid level, the first water pump 55 stops working; similarly, in the second water storage tray 51, when the liquid level is higher than the set high liquid level, the second water pump 57 is started, and when the liquid level is lower than the set low liquid level, the second water pump 57 is stopped.
The bottoms of the first water storage tray 50 and the second water storage tray 51 are both formed with water storage cavities 501 in a recessed manner, and the two liquid level trigger mechanisms 56 are respectively and correspondingly located in the two water storage cavities 501. Through above setting, improve the volume of collecting the comdenstion water, occupy the condition of machine inner space as far as possible simultaneously for there is great difference in height in first water storage dish 50 and the second water storage dish 51, do benefit to liquid level trigger mechanism 56 work.
The first water pump 55 and the second water pump 57 can be submersible pumps (not shown), the first water pump 55 is installed in the water storage cavity 501 of the first water storage tray 50, the second water pump 57 is installed in the water storage cavity 501 of the second water storage tray 51, when the water storage device is used, the first water pump 55 and the second water pump 57 are both soaked in water, and the water delivery ends of the two water delivery pipes 52 are respectively and directly connected with the outlets of the first water pump 55 and the second water pump 57.
In the evaporative cooling fan provided by the present invention, the condensed water generated by the evaporator 30 is collected by the first water storage tray 50, and is delivered to the cooling water tray 60 by the first water pump 55, and then is sprinkled onto the outer surface of the condenser 70, and is collected by the second water storage tray 51, and after being heated by the heat exchanger 40, is spilled back to the first water storage tray 50 by the spillway return pipe 53; the high temperature on the surface of the condenser 70 carries out the first evaporation on the condensed water, the heat exchanger 40 heats the condensed water to carry out the second evaporation, the condensed water generated by the machine does not need to be removed periodically by manpower, the trouble of water pouring is saved, the workload is reduced, meanwhile, the phenomenon that the water overflows due to the fact that the condensed water cannot be removed in time can be prevented, and the ground is prevented from being wet and slippery; the condensed water is sprinkled on the outer surface of the condenser 70 before heating, the condenser 70 is assisted in heat dissipation, the refrigeration efficiency is improved, and the condensed water is reused before evaporation, so that the energy is saved.
The above embodiments are intended to be illustrative, and should not be construed as limiting the scope of the invention, and the technical solutions, objects and effects of the present invention are described in full herein.
The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (10)
1. The evaporative cooling fan is characterized by comprising a shell main body, a first fan, a second fan and a cooling mechanism arranged in the shell main body, wherein the cooling mechanism comprises an evaporator and a heat exchanger, a cold air channel is formed between the first fan and the evaporator, a first water storage disc and a second water storage disc are arranged in the shell main body, a water conveying pipe for conveying condensed water is arranged between the first water storage disc and the second water storage disc, the first water storage disc is positioned at the bottom of the evaporator, the heat exchanger is positioned in the second water storage disc, and a discharge air channel is formed between the heat exchanger and the second fan.
2. The evaporative cooling fan as claimed in claim 1, wherein a cooling water tray is further provided in the housing main body, the cooling water tray is provided with a plurality of through holes, the cooling mechanism further includes a condenser, the condenser is located at a bottom of the cooling water tray, the second water storage tray is located at a bottom of the condenser, the water pipe includes a water delivery end and a water discharge end, the water delivery end is communicated with the first water storage tray, and the water discharge end is communicated with the cooling water tray.
3. The evaporative cooling fan as claimed in claim 2, wherein the housing main body includes a first case and a second case, the evaporator, the first water storage tray and the first fan are located in the first case, the heat exchanger, the condenser, the cooling water tray and the second water storage tray are located in the second case, the first case is located below the second case, and a water pump is installed in the first case and located between a water delivery end and a water discharge end of the water delivery pipe.
4. The evaporative cooling fan as claimed in claim 1, wherein a cooling water tray is further provided in the housing main body, the cooling water tray is provided with a plurality of through holes, the cooling mechanism further includes a condenser, the condenser is located at the bottom of the cooling water tray, the second water storage tray is located at the bottom of the condenser, two water pipes are provided, one of the water pipes is communicated with the first water storage tray and the second water storage tray, and the other water pipe is communicated with the second water storage tray and the cooling water tray.
5. The evaporative cooling fan as claimed in claim 4, wherein the housing body includes a first case and a second case, the evaporator, the first water tray and the first fan are located in the first case, the heat exchanger, the condenser, the cooling water tray and the second water tray are located in the second case, the first case is located below the second case, a first water pump is installed in the first case, the first water pump is located between the first water tray and the second water tray and connected to a water pipe communicating the first water tray and the second water tray, and a second water pump is installed in the second case, the second water pump is located between the second water tray and the cooling water tray and connected to a water pipe communicating the second water tray and the cooling water tray.
6. The evaporative cooling fan as claimed in claim 5, wherein the first water storage tray and the second water storage tray are each provided with a liquid level trigger mechanism, the liquid level trigger mechanism in the first water storage tray is electrically connected to the first water pump, and the liquid level trigger mechanism in the second water storage tray is electrically connected to the second water pump.
7. The evaporative cooling fan as claimed in claim 6, wherein the bottom of each of the first and second water storage trays is recessed to form a water storage cavity, and the two liquid level triggering mechanisms are respectively and correspondingly located in the two water storage cavities.
8. The evaporative cooling fan as claimed in claim 5, wherein an overflow return pipe is disposed between the first water storage tray and the second water storage tray, the overflow return pipe includes a water inlet end and a water outlet end, the water inlet end is communicated with the second water storage tray, and the water outlet end is disposed toward the interior of the first water storage tray.
9. The evaporative cooling fan as claimed in any one of claims 1 to 8, wherein an overflow pipe is connected to the first water storage tray, the overflow pipe extending to the outside of the housing main body.
10. The evaporative cooling fan as claimed in any one of claims 1 to 8, wherein a first drain pipe is connected to the first water storage tray, a second drain pipe is connected to the second water storage tray, the second drain pipe extends in a direction toward the first water storage tray, and the first drain pipe protrudes to the outside of the housing main body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020221167250 | 2020-09-23 | ||
| CN202022116725 | 2020-09-23 |
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| Publication Number | Publication Date |
|---|---|
| CN213514223U true CN213514223U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022461694.2U Active CN213514223U (en) | 2020-09-23 | 2020-10-29 | Evaporation type refrigeration fan |
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| Country | Link |
|---|---|
| CN (1) | CN213514223U (en) |
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2020
- 2020-10-29 CN CN202022461694.2U patent/CN213514223U/en active Active
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