Air cooler with water pan adopting graphene electrothermal film

By employing a graphene electric heating film heating mechanism within the evaporative air cooler's water tray, combined with a support plate and temperature sensor, the problem of water tray icing was solved, achieving a highly efficient and energy-saving anti-icing effect and improving the operational stability and safety of the evaporative air cooler.

CN224215663UActive Publication Date: 2026-05-08ROAD & BRIDGE INT CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ROAD & BRIDGE INT CO LTD
Filing Date
2025-04-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The drip trays of existing air coolers are prone to freezing during defrosting, and traditional electric heating elements have low electrothermal conversion efficiency, consume a lot of electricity, have poor safety, and high maintenance costs.

Method used

The graphene electrothermal film is used as the heating mechanism for the water receiving tray. Combined with a support plate, temperature sensor and controller, it realizes intelligent heating to prevent freezing, and improves heat energy utilization and safety through heat reflective film and heat insulation board.

Benefits of technology

It effectively prevents the drip tray from freezing, improves the operational stability of the air cooler, reduces energy consumption, extends the service life of the graphene heating film, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an air cooler with a water pan adopting a graphene electrothermal film. An air cooler with a water pan adopting a graphene electrothermal film comprises an air cooler body, the water pan and a graphene heating mechanism embedded in the water pan. A controller is mounted on one side of the water pan; the graphene heating mechanism comprises a supporting plate, a graphene electrothermal film is installed on the top of the supporting plate, a power line is installed on one side of the graphene electrothermal film, the far end of the power line is connected with the controller in an inserted mode, a temperature sensor is installed on the graphene electrothermal film, and the temperature sensor is connected with the controller. According to the air cooler with the water pan adopting the graphene electrothermal film, the graphene heating mechanism comprising the supporting plate, the graphene electrothermal film and the temperature sensor is embedded in the water pan, the water pan can be conveniently heated, icing is prevented, normal operation of the air cooler is facilitated, and more energy is saved.
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Description

Technical Field

[0001] This utility model relates to the field of air cooler technology, and in particular to an air cooler with a water tray using a graphene electric heating film. Background Technology

[0002] During normal operation of a cold storage refrigeration system, the surface temperature of the heat exchanger in the air cooler is much lower than the dew point temperature of the air. Moisture from the food and air will condense and adhere to the pipe walls. If the pipe wall temperature drops below 0°C, the dew will condense into frost, which will thicken over time. Therefore, defrosting is necessary.

[0003] If the water drains from the drip tray during the defrosting process of the evaporative air cooler, or if the defrosting water in the drip tray is not completely drained after defrosting, ice will form in the drip tray after the evaporative air cooler restarts cooling. The long-term accumulation of ice in the drip tray will affect the safe operation of the refrigeration system and the normal use of the cold storage.

[0004] The water drip tray uses electric heating to prevent freezing. This involves laying electric heating tubes (wires) inside the drip tray. These tubes (wires) generate heat through the thermal effect of electric current, preventing the defrost water from freezing. However, the electric heating tubes (wires) used in existing evaporative air coolers have low electrothermal conversion efficiency, consume a lot of electricity, and cause large temperature fluctuations in the cold room. Furthermore, traditional electric heating tubes (wires) have poor safety, requiring regular inspection and replacement, resulting in high maintenance costs.

[0005] Therefore, it is necessary to provide a cooler with a water tray using a graphene electric heating film to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to overcome the defects of the prior art, this utility model provides a cold air blower with a water receiving pan using a graphene electric heating film, which can conveniently heat the water receiving pan and prevent it from freezing.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] The air cooler with a graphene heating film in the drip tray includes: the air cooler body, the drip tray, and a graphene heating mechanism embedded in the drip tray. A controller is installed on one side of the drip tray. The graphene heating mechanism includes a support plate, a graphene heating film installed on the top of the support plate, a power cord installed on one side of the graphene heating film, and the far end of the power cord connected to the controller. A temperature sensor is installed on the graphene heating film and is connected to the controller.

[0009] Preferably, a mounting groove is formed at the top of the support plate, and a heat-reflective film is installed at the bottom of the mounting groove.

[0010] Preferably, a clearance groove is provided on one side of the mounting groove.

[0011] Preferably, a heating groove is provided on the water receiving tray.

[0012] Preferably, a handle is installed on one side of the support plate.

[0013] Preferably, a heat insulation plate is installed at the bottom of the water receiving tray.

[0014] Preferably, a PE protective film is installed on top of the graphene electrothermal film.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) This utility model can conveniently heat the water tray by embedding a graphene heating mechanism including a support plate, a graphene electric heating film and a temperature sensor in the water tray, prevent freezing, facilitate the normal operation of the air cooler and save energy.

[0017] (2) By opening an installation groove on the top of the support plate and installing a heat-reflective film in the groove, this utility model can reduce the heat loss of the graphene electrothermal film and improve the heat energy utilization rate.

[0018] (3) This utility model can facilitate the installation of circuit cables by opening an avoidance groove on one side of the mounting groove;

[0019] (4) By opening a heating groove on the water receiving tray, this utility model can facilitate the installation and disassembly of the graphene heating mechanism.

[0020] (5) By installing a heat insulation plate at the bottom of the water receiving tray, this utility model can reduce the rate of heat loss from the water receiving tray and achieve energy saving effect.

[0021] (6) By installing a PE protective film on the top of the graphene electrothermal film, this utility model can help improve the service life of graphene. Attached Figure Description

[0022] Figure 1 A front view schematic diagram of the air cooler with a graphene electric heating film in the water receiving tray provided by this utility model;

[0023] Figure 2 for Figure 1 The diagram shown illustrates the installation of the water receiving tray and the graphene heating mechanism in a cold air blower using a graphene electric heating film as the water receiving tray.

[0024] Figure 3 for Figure 1 The diagram shown is a structural schematic of the water receiving tray in a cold air blower that uses a graphene electric heating film.

[0025] Figure 4 for Figure 1 The diagram shows the structure of the graphene heating mechanism in a cold air blower with a graphene electric heating film in the water receiving tray.

[0026] Figure 5 for Figure 1 The diagram shows the structure of the support plate in a cold air blower with a water receiving tray made of graphene electric heating film.

[0027] The corresponding names of the attached figures are: 1-cooler body, 2-water tray, 3-graphene heating mechanism, 4-drain pipe, 5-controller, 21-heating tank, 22-insulation plate, 31-support plate, 32-graphene electric heating film, 33-power cord, 34-temperature sensor, 35-handle, 36-mounting slot, 37-avoidance slot. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0029] Example 1:

[0030] like Figure 1-5As shown, the present invention provides a cooling fan with a water receiving tray using a graphene electric heating film, comprising: a cooling fan body 1, a water receiving tray 2 connected to the cooling fan body 1, and a graphene heating mechanism 3 embedded in the water receiving tray 2. A drain pipe 4 is installed at the bottom of the water receiving tray 2 for draining accumulated water in the water receiving tray 2. A controller 5 is installed on one side of the water receiving tray 2. The input end of the controller 5 is connected to the mains power, and the output end of the controller 5 is connected to the graphene heating mechanism 3 for controlling the start and stop of the graphene heating mechanism 3. The graphene heating mechanism 3 includes a support plate 31, a graphene electric heating film 32 is installed on the top of the support plate 31, a power cord 33 is installed on one side of the graphene electric heating film 32, and the far end of the power cord 33 is plugged into the output port of the controller 5. A temperature sensor 34 is installed on the graphene electric heating film 32, and the temperature sensor 34 is connected to the controller 5 through a data cable. It is worth noting that the controller 5 is connected to the control circuit of the air cooler body 1. Specifically, one of the signal input terminals of the controller 5 is connected to the defrosting program signal output terminal of the air cooler body 1, so that when the defrosting program is started, the controller 5 receives the signal and can start simultaneously. The specific structural design and circuit design will not be described in detail. Of course, the controller 5 can also be manually started and stopped. When in use, the air cooler is installed in the air cooler. When the air cooler body 1 is frosted, the defrosting program is started. At the same time, the controller 5 controls the graphene electric heating film 32 to be energized and start working, heating the water tray 2, raising the temperature of the water tray 2, preventing the water tray 2 from freezing, and the defrosting water is discharged outdoors through the drain pipe 4. Temperature sensor 34 monitors the temperature of graphene heating film 32 in real time and sends the temperature information to controller 5. When the temperature is too high, controller 5 controls the graphene heating film 32 to cut off power. When the temperature is below the set temperature, power is restored to the graphene heating film 32, thus preventing the graphene heating film 32 from overheating and being damaged by high temperature, and preventing excessive energy waste. After the air cooler body 1 finishes defrosting, thermostat 5 controls the graphene heating film 32 to cut off power, ending the heating process. The electrothermal conversion efficiency of the graphene heating film can reach 99%, which is more energy-efficient than traditional electric heating tubes.

[0031] By embedding a graphene heating mechanism 3, including a support plate 31, a graphene electric heating film 32, and a temperature sensor 34, into the water receiving pan 2, the water receiving pan 2 can be heated conveniently, preventing icing, which is beneficial to the normal operation of the air cooler and is more energy-efficient.

[0032] Example 2:

[0033] like Figure 5As shown, an installation groove 36 is opened on the top of the support plate 31, and a heat-reflective film is installed at the bottom of the installation groove 36. When the graphene electric heating film 32 is installed in the installation groove 36, the heat loss to the bottom of the installation groove 36 can be effectively reduced through the reflection of the heat-reflective film, so that more heat can be radiated upward, thereby achieving a better heating effect and improving the utilization rate of heat energy.

[0034] By opening an mounting groove 36 on the top of the support plate 31 and installing a heat-reflective film in the groove, the heat loss of the graphene electrothermal film 32 can be reduced and the heat energy utilization rate can be improved.

[0035] Example 3:

[0036] like Figure 4-5 As shown, a clearance groove 37 is provided on one side of the mounting groove 36. The power cord 33 and the data line of the sensor 34 both pass through the clearance groove 37, which facilitates the connection between the graphene electrothermal film 32, the sensor 34 and the controller 5.

[0037] By opening a clearance groove 37 on one side of the mounting groove 36, the installation of circuit cables can be facilitated.

[0038] Example 4:

[0039] like Figure 2-4 As shown, a heating groove 21 is provided on the water receiving tray 2, the support plate 31 is inserted into the heating groove 21, and the power cord 33 and the data line of the sensor 34 are connected to the controller 5, thereby realizing the rapid installation of the graphene heating mechanism 3.

[0040] By opening a heating groove 21 on the water receiving tray 2, the graphene heating mechanism 3 can be easily installed and disassembled.

[0041] Example 5:

[0042] like Figure 4 As shown, a handle 35 is installed on one side of the support plate 3. By pulling the handle 35, the support plate 31 can be pulled out from the heating groove 21, making it easy to replace the graphene heating film 32.

[0043] By installing a handle 35 on one side of the support plate 3, the support plate 31 can be easily pulled out of the heating tank 21, making it convenient to replace the graphene heating film 32.

[0044] Example 6:

[0045] like Figure 3 As shown, a heat insulation plate 22 is installed at the bottom of the water receiving pan 3. The heat insulation plate 22 reduces the heat loss of the water receiving pan 3 towards the bottom, which is beneficial to the heat preservation of the water receiving pan 3 and achieves energy saving. Similarly, a similar structure can be set around the water receiving pan 2 to further improve energy saving, which will not be elaborated here.

[0046] By installing a heat insulation plate 22 at the bottom of the water receiving pan 3, the rate of heat loss from the water receiving pan 3 can be reduced, thus achieving energy-saving effects.

[0047] Example 7:

[0048] In this embodiment, a PE protective film is installed on the top of the graphene heating film 32. The PE protective film improves the protection of the graphene heating film 32, reduces the possibility of it being scratched and damaged, and extends its service life.

[0049] Installing a PE protective film on top of the graphene electrothermal film 32 can help improve the service life of the graphene.

[0050] Working Principle: During use, the air cooler is installed inside the air conditioner. When frost forms on the air cooler body 1, the defrosting program is activated. Simultaneously, the controller 5 powers on the graphene heating film 32, heating the water tray 2 to prevent it from freezing. The defrost water on the water tray 2 is discharged outdoors through the drain pipe 4. The temperature sensor 34 monitors the temperature of the graphene heating film 32 in real time and sends the temperature information to the controller 5. When the temperature is too high, the controller 5 cuts off the power to the graphene heating film 32. When the temperature drops below the set temperature, the power to the graphene heating film 32 is restored, thus preventing the graphene heating film 32 from overheating and being damaged by high temperatures. After the air cooler body 1 finishes defrosting, the temperature controller 5 cuts off the power to the graphene heating film 32, ending the heating process.

Claims

1. A cooler with a water tray using a graphene electric heating film, characterized in that, include: The air cooler body (1), the water receiving tray (2), and the graphene heating mechanism (3) embedded in the water receiving tray (2); A controller (5) is installed on one side of the water receiving tray (2); The graphene heating mechanism (3) includes a support plate (31), a graphene electric heating film (32) is installed on the top of the support plate (31), a power cord (33) is installed on one side of the graphene electric heating film (32), the far end of the power cord (33) is plugged into the controller (5), a temperature sensor (34) is installed on the graphene electric heating film (32), and the temperature sensor (34) is connected to the controller (5).

2. A cooler with a water tray using a graphene electric heating film according to claim 1, characterized in that, The support plate (31) has an installation groove (36) on its top, and a heat-reflective film is installed at the bottom of the installation groove (36).

3. A cooler with a water tray using a graphene electric heating film according to claim 2, characterized in that, A clearance groove (37) is provided on one side of the mounting groove (36).

4. A cooler with a water tray using a graphene electric heating film according to claim 1, characterized in that, A heating groove (21) is provided on the water receiving tray (2).

5. A cooler with a water tray using a graphene electric heating film according to claim 1, characterized in that, A handle (35) is installed on one side of the support plate (31).

6. A cooler with a water receiving tray using a graphene electric heating film according to claim 1, characterized in that, A heat insulation plate (22) is installed at the bottom of the water receiving tray (2).

7. A cooler with a water tray using a graphene electric heating film according to claim 1, characterized in that, A PE protective film is installed on the top of the graphene electrothermal film (32).