Charging station sunshade heat dissipation product based on radiation refrigeration film

By using a combined structure of radiation refrigeration film and heat conduction pipes on the charging station awning, the problems of low heat dissipation efficiency of the charging station and heat conduction of the awning are solved, and the energy-saving and environmentally friendly heat dissipation effect without power consumption is achieved.

CN223189946UActive Publication Date: 2025-08-05DONGGUAN UNIV OF TECH
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Patent Information

Application Number
CN202422019202.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-08-05
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

The heat dissipation method of existing charging stations is not efficient. The heat conduction of the awning at high temperatures affects the safety of the charging station, and the existing technology does not use radiation refrigeration film for passive cooling.

Method used

The awning structure is adopted that combines radiation refrigeration film and heat conduction pipes. The radiation refrigeration film is applied to the surface of the awning, and the heat conduction pipe is inside the awning to achieve even distribution of heat and radiate to outer space.

Benefits of technology

The power-free heat dissipation and cooling of the charging station is achieved, the heat dissipation efficiency is improved, the temperature of the awning and charging piles is reduced, and the safety and environmental protection of the charging station is ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of outdoor charging station sun shading and heat dissipation, and particularly discloses a charging station sun shading and heat dissipation product based on a radiation refrigeration film, which comprises a sunshade main body, a radiation refrigeration film and a radiation refrigeration film, the heat conduction pipe is positioned in the sunshade main body; the radiation refrigeration film is attached to the upper surface of the sunshade main body in a covering mode. According to the charging station sunshade heat dissipation product based on the radiation refrigeration film, passive refrigeration characteristics of the radiation refrigeration film can be fully utilized, power-consumption-free heat dissipation and cooling of the charging station are achieved, and the energy-saving and environment-friendly heat dissipation and cooling effects are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of sunshade and heat dissipation of outdoor charging stations, in particular to a sunshade and heat dissipation product of a charging station based on a radiation refrigeration film. Background Art

[0002] In recent years, the production and sales of new energy vehicles in my country have grown rapidly. Electric vehicle charging stations are becoming a key development focus for the automotive and energy industries. Temperature control and heat dissipation in charging stations are crucial for ensuring their safety. Compared to other charging equipment, charging piles dissipate significantly greater amounts of heat, placing extremely stringent requirements on system thermal management. DC charging piles offer power ranges of 30 kW, 60 kW, and 120 kW, with efficiencies generally around 95%. The remaining 5% is converted into heat loss, representing 1.5 kW, 3 kW, and 6 kW, respectively. For outdoor equipment, this heat must be dissipated outside the equipment, as failure to do so can lead to unstable system operation, accelerated equipment aging, and even potentially explosions and fires.

[0003] Currently, there are four common cooling methods for charging piles: natural cooling (primarily relying on heat sinks), forced air cooling, water cooling, and air conditioning. Due to factors such as size, cost, and efficiency, most companies currently use forced air cooling. The most practical design involves creating louvered air inlets and outlets within the enclosure, then adding a fan to the outlet to dissipate heat. However, this method is inefficient.

[0004] At the same time, in order to provide shade and prevent rain, awnings are usually set up above the charging piles. Existing awnings usually use steel structures. Under hot conditions, the awnings are directly exposed to the sun and their temperature will continue to rise. The heat can reach the bottom of the awning through heat conduction and heat radiation, making the entire charging station shrouded in high temperature. Not only is it difficult to protect the charging piles, but it will also affect the car motors being charged in the station, posing a safety hazard.

[0005] In recent years, radiative cooling membranes that use micro-nanostructures and metamaterials for radiative cooling have gradually become popular. While minimizing the system's heat absorption, they can also increase the system's external heat radiation through nanostructures and metamaterials, ultimately allowing the system to be in a state of spontaneous cooling, achieving real-time passive cooling.

[0006] In the existing technology, radiant cooling film has not yet been applied to outdoor charging stations. Therefore, the utility model is committed to developing a charging station sunshade and heat dissipation product based on radiant cooling film, which is used to fully utilize the passive cooling characteristics of the radiant cooling film to achieve power-free heat dissipation and cooling of the charging station, thereby achieving energy-saving and environmentally friendly heat dissipation and cooling effects.

[0007] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0008] One purpose of the present utility model is to provide a sunshade and heat dissipation product for a charging station based on a radiant cooling film, which can fully utilize the passive cooling characteristics of the radiant cooling film to achieve power-saving heat dissipation and cooling of the charging station, thereby achieving energy-saving and environmentally friendly heat dissipation and cooling effects.

[0009] To achieve the above objectives, the present invention provides a charging station sunshade and heat dissipation product based on a radiant cooling film, comprising:

[0010] A sunshade main body, the upper portion of which extends horizontally to block sunlight;

[0011] A heat conducting pipe, the heat conducting pipe being located inside the awning body;

[0012] A radiant cooling film is attached to the upper surface of the awning body.

[0013] Optionally, the heat conduction pipe is a solid metal pipe.

[0014] Optionally, the heat pipe is a hollow metal pipe.

[0015] Optionally, the heat pipe is filled with coolant.

[0016] Optionally, a liquid inlet joint connected to one end of the heat-conducting pipe and a liquid outlet joint connected to the other end of the heat-conducting pipe are installed on the surface of the awning body.

[0017] Optionally, the awning body has an overall arc-shaped structure.

[0018] Wherein, the radiation cooling film is attached to the top surface of the entire awning body.

[0019] Optionally, the awning body includes a transverse portion extending in a horizontal direction, and a longitudinal portion fixedly arranged below the transverse portion;

[0020] Wherein, the radiant cooling film is attached to the top surface of the transverse portion.

[0021] Optionally, a display screen is provided on the inner side of the longitudinal portion.

[0022] Optionally, the display screen is thermally connected to the heat pipe.

[0023] The beneficial effects of the present invention are: providing a sunshade and heat dissipation product for a charging station based on a radiation cooling film, wherein the upper part of the sunshade main body extends horizontally to block sunlight for the charging piles and cars below; a heat conducting pipe is embedded in the interior of the sunshade main body, which can evenly distribute the heat on the sunshade main body to various positions of the sunshade to avoid local high temperature; a radiation cooling film is applied to the upper surface of the sunshade main body, and the radiation cooling film's own power-saving cooling characteristics can be used to cool and dissipate heat to the sunshade main body, thereby realizing power-saving heat dissipation and cooling of the sunshade main body, so as to achieve energy-saving and environmentally friendly heat dissipation and cooling effects.

[0024] Therefore, the charging station sunshade and heat dissipation product based on the radiation cooling film provided by the utility model can fully utilize the passive cooling characteristics of the radiation cooling film to achieve power-free heat dissipation and cooling of the charging station, thereby achieving energy-saving and environmentally friendly heat dissipation and cooling effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a charging station sunshade and heat dissipation product based on a radiant cooling film and having an arc structure provided in an embodiment;

[0027] Figure 2 A schematic diagram of a heat pipe provided in an embodiment;

[0028] Figure 3 This is a schematic diagram of the spiral arrangement of heat pipes;

[0029] Figure 4 This is a schematic diagram of the circuitous layout of the heat pipes;

[0030] Figure 5 Schematic diagram of the spiral and circuitous arrangement of heat pipes;

[0031] Figure 6 A schematic structural diagram of a T-shaped charging station sunshade and heat dissipation product based on a radiant cooling film provided in an embodiment;

[0032] Figure 7 Schematic diagram of the experimental setup;

[0033] Figure 8 This is the temperature comparison line chart of application example 1;

[0034] Figure 9This is a line chart of humidity and illuminance changes in application example 1;

[0035] Figure 10 This is the temperature comparison line chart of application example 2;

[0036] Figure 11 This is a line chart showing changes in humidity and illuminance for Application Example 2.

[0037] In the picture:

[0038] 1. Awning body; 101. Horizontal part; 102. Vertical part;

[0039] 2. Heat pipe;

[0040] 3. Radiant cooling film;

[0041] 4. Display screen. DETAILED DESCRIPTION

[0042] References to "embodiments" in this utility model mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the utility model. The appearance of the term "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or relevance to other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the various embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0043] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The use of relevant terms herein is only for describing specific embodiments and is not intended to limit the present invention.

[0044] In the description of this utility model, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0045] In the present invention, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0046] Without further restrictions, in the present invention, the words "include", "comprise", "have" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0047] Consistent with the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0048] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present invention.

[0049] Unless otherwise expressly specified or limited, in the description of the embodiments of the present invention, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the technical field of the present invention, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0050] The utility model provides a sunshade and heat dissipation product for a charging station based on a radiation cooling film, which can fully utilize the passive cooling characteristics of the radiation cooling film to realize power-saving heat dissipation and cooling of the charging station, thereby achieving energy-saving and environmentally friendly heat dissipation and cooling effects.

[0051] Example 1

[0052] See also Figure 1 This embodiment provides a charging station sunshade and heat dissipation product based on a radiant cooling film 3, comprising a sunshade body 1, a heat pipe 2, and the radiant cooling film 3. The upper portion of the sunshade body 1 extends horizontally to block sunlight; the heat pipe 2 is located within the sunshade body 1; and the radiant cooling film 3 is applied to the upper surface of the sunshade body 1.

[0053] Optionally, the material of the awning main body 1 is PE, PVC or HDPE.

[0054] The present embodiment provides a sunshade and heat dissipation product for a charging station based on a radiation cooling film 3, wherein the upper portion of the sunshade main body 1 extends horizontally so as to block sunlight for the charging piles and cars below; a heat pipe 2 is embedded in the interior of the sunshade main body 1, which can evenly distribute the heat on the sunshade main body 1 to various positions of the sunshade to avoid local high temperatures; a radiation cooling film 3 is affixed to the upper surface of the sunshade main body 1, and the radiation cooling film 3's own power-saving cooling characteristics can be utilized to cool and dissipate heat for the sunshade main body 1, thereby realizing power-saving heat dissipation and cooling of the sunshade main body 1, thereby achieving an energy-saving and environmentally friendly heat dissipation and cooling effect.

[0055] Therefore, the sunshade and heat dissipation product for the charging station based on the radiation cooling film 3 provided by the utility model can fully utilize the passive cooling characteristics of the radiation cooling film 3 to realize power-free heat dissipation and cooling of the charging station, thereby achieving energy-saving and environmentally friendly heat dissipation and cooling effects.

[0056] Optionally, the heat conducting pipe 2 is a solid metal pipe. The solid metal pipe has better thermal conductivity and can quickly conduct heat, thereby shortening the time required for evenly distributing heat in the awning body 1 and accelerating the heat distribution speed.

[0057] Alternatively, the heat pipe 2 is a hollow metal pipe filled with a coolant. The coolant can be a medium with a large specific heat capacity, such as water. The metal pipe filled with coolant has a large specific heat capacity and can absorb more heat with a smaller temperature rise, thereby reducing the overall temperature of the awning body 1.

[0058] Furthermore, the heat pipe 2 can be Figures 2 to 5 The circuitous bending structure shown is used to increase the pipe length per unit area, further improving the heat distribution effect.

[0059] Optionally, the surface of the awning body 1 is equipped with a liquid inlet connector connected to one end of the heat pipe 2, and a liquid outlet connector connected to the other end of the heat pipe 2. Using a drive device such as a liquid pump to circulate coolant within the heat pipe 2 can further enhance the cooling effect on the awning body 1. In other embodiments, the liquid inlet and outlet connectors can be directly sealed with plugs, allowing the heat pipe 2 to be used simply as a high-specific-heat-capacity heat-conducting component without circulating cooling function.

[0060] Optional, see Figure 1 The awning body 1 as a whole presents an arc-shaped structure, wherein the radiation cooling film 3 is attached to the top surface of the entire awning body 1.

[0061] Alternatively, see Figure 6 The awning body 1 includes a horizontally extending transverse portion 101 and a longitudinal portion 102 fixed below the transverse portion 101. The radiant cooling film 3 is attached to the top surface of the transverse portion 101. Furthermore, a display screen 4 is provided on the inner side of the longitudinal portion 102. In this case, the charging station sunshade and heat dissipation product based on the radiant cooling film 3 can also be used as a bus stop, with the display screen 4 used to display bus arrival information.

[0062] Optionally, the display screen 4 is thermally connected to the heat pipe 2 , and the heat is transferred to the awning body 1 through the heat pipe 2 , and then dissipated outwards by the radiation cooling film 3 .

[0063] In summary, the charging station sunshade and heat dissipation product based on the radiant cooling film 3 provided in this embodiment has the following advantages:

[0064] ① A radiant cooling film 3 is provided on the top surface of the awning body 1 to dissipate heat and cool down the charging piles and cars below the awning body 1 without consuming additional energy, which is in line with the concept of energy conservation and environmental protection;

[0065] ② The awning body 1 has a built-in heat pipe 2, which can evenly distribute heat to various locations of the awning body 1, avoiding the generation of local high-temperature spots and improving heat dissipation efficiency. Furthermore, the heat pipe 2 can be a solid or hollow metal tube and can be filled with coolant or use a circulation system as needed, providing a flexible configuration solution to meet different heat dissipation requirements.

[0066] ③ The awning body 1 can be designed into different structures, such as an arc shape or a structure with a longitudinal portion 102, to adapt to different usage scenarios and needs;

[0067] ④ A display screen 4 can be added under the awning main body 1, so that it can not only be used for shading and heat dissipation of the charging station, but also serve as a public facility such as a bus stop, providing arrival information and increasing social service functions; further, through the thermal connection between the heat pipe 2 and the display screen 4, the heat generated by the display screen 4 is effectively managed, ensuring the normal operating temperature of the display screen 4.

[0068] Example 2

[0069] The specific structure and working principle of the radiant cooling film belong to the existing technology and do not need to be introduced in detail. To further enhance understanding, this embodiment briefly describes the heat dissipation process in combination with the specific application scenario of awning heat dissipation.

[0070] The structure of the radiation cooling film used in this patent mainly includes a flexible polymer layer, a reflective layer, and an emissive layer. The cooling principle is to achieve high transmittance in the mid-infrared atmospheric window band through a good reflective layer (generally a metal with high reflectivity such as Ag or Al) and an emissive layer (optical metasurface array structure, metamaterials, multilayer films and other technologies). Since all heat radiation on the earth is mainly radiated to outer space through the infrared band, and the temperature of outer space is absolute zero, the system can continuously radiate heat to outer space to reduce the temperature of the system under the film. According to its radiation power density per unit surface (P, which is determined by the properties of the radiation cooling film itself and weather conditions, the unit generally used is W / m 2 ), the total cooling power is controlled by its surface area (S)

[0071] E=P×S

[0072] At the same time, the internal volume of the charging station is (V). Therefore, the cooling power per unit volume is:

[0073] P v =E / V

[0074] In order to design more efficient radiant cooling shading products, it is necessary to understand the process of heat preservation and cooling. In this process, due to the relatively good thermal insulation performance of the charging pile, the temperature difference between the inside and outside of the charging pile is The most important parameters for evaluating heat dissipation products for radiant cooling charging stations are:

[0075] (1)

[0076] The initial temperature inside and outside the charging pile is T out , the final temperature is T in The heat absorbed by light absorption and heat conduction is Q1, the heat radiated by heat conduction is Q2, and the heat radiated by the radiation cooling film to the outer space is Q3 (Q is positive when the temperature rises and negative when the temperature drops). The specific heat capacity of the object inside the charging pile is c, for example, water (c=4.2×103 kJ / (kg·K) (under standard air conditions)), m is the mass.

[0077] From equation (1), it can be seen that when the heat radiated from the outer space by the radiant cooling film is greater than the heat emitted by the charging pile during operation, the internal temperature of the charging pile can be reduced. Therefore, there are several ways to improve the sun protection and cooling performance of this design:

[0078] ① Reduce heat absorption (reduce the heat generated by light absorption);

[0079] ② Increase the amount of radiant heat (under cloudless and clear weather conditions, the cooling efficiency of the radiant cooling film is higher);

[0080] ③ Improve heat conduction efficiency (high thermal conductivity materials conduct heat inside the device to the outside).

[0081] The sunshade product of the utility model can provide sunshade and heat dissipation for the following products: outdoor car charging stations, outdoor electric vehicle charging stations, smart bus stations, solar energy storage battery cabinets, etc.

[0082] Example 3

[0083] The following uses several application examples to illustrate the specific beneficial effects that can be achieved by the charging station sunshade and heat dissipation product based on the radiant cooling film provided by the utility model.

[0084] See also Figure 7 In order to test the heat dissipation and cooling capabilities of the charging station sunshade and heat dissipation product based on the radiant cooling film, two 1:15 test sheds 100 were produced, and a test box 200 containing a constant-power heating rod 300 was added to simulate the charging pile as the experimental object. Multiple control experiments were conducted. The temperature difference between the test shed without a film (test shed without a film) and the charging station sunshade and heat dissipation product based on the radiant cooling film provided in Example 1 (test shed with a film) was tested in two conditions: when the heating rod 300 was not working and when the heating rod 300 was working. The experiments were conducted in an environment where the radiant cooling film was facing the sky and there was no obstruction.

[0085] Application Example 1: Testing the cooling effect of a non-membrane test box under a membrane test shed

[0086] On January 10, at 2:00 PM Beijing time in Dongguan City, Guangdong Province, the ambient temperature was 26-32°C and the illuminance was 108-860 W / m 2The humidity was 33-45% RH. Measurements were performed using a SMART SENSOR high-precision, fast-response thermometer and hygrometer (with an instrument error of 0.1°C and 1% RH), a Xinsite HT-9815 thermocouple (with an instrument error of ±0.1°C), and a sun illuminometer (with an instrument error of ±0.1W / ㎡). The probes of the thermometer and hygrometer and sun illuminometer were placed at the midpoint between the two experimental shed models. The probes of the thermocouples were placed inside the experimental boxes placed under the two experimental sheds (the probes were fixed and suspended in the center of the box and did not come into contact with any entities).

[0087] The surface of the non-membrane test shed was not covered with film and was directly exposed to sunlight. The outside of the film test shed was fully covered with a radiant cooling film (a flexible radiant cooling film with a polymer metasurface structure). Both test sheds were made of PVC film sheets, and the appearance was the same as the arc structure. The test boxes below were self-heated and kept at a constant temperature of 40°C at the beginning of the experiment. The temperature, humidity, light intensity and other data were recorded every three minutes for a total of 96 minutes. The data were plotted into images using Origin software ( Figure 8 、 Figure 9 ).

[0088] Within 0-10 minutes after the start of the experiment, the internal temperature of the two experimental boxes began to rise sharply with the operation of the heating rod. Among them, the internal temperature value and temperature rise of the experimental box in the membrane experimental shed were much smaller than those in the non-membrane experimental shed. Within 10-46 minutes, the maximum temperature difference between the two experimental boxes reached 12.6℃. From 46 minutes to the end of the experiment, although the temperature of the ordinary shed experimental box was still significantly higher than that of the membrane experimental shed, the temperature difference was smaller than that in the first 35 minutes. Figure 8 It can be seen that after 46 minutes, the light intensity dropped significantly, followed by a sharp increase in humidity, which affected the operation of the radiant cooling membrane. The experiment showed that the membrane-coated test shed had a significant cooling effect under both strong and weak light conditions. The cooling effect was more significant under strong light and low humidity conditions, demonstrating the feasibility of radiant cooling charging stations and their excellent cooling and heat dissipation effects.

[0089] Application Example 2: Testing the cooling effect of a film-coated test box under a film-coated test shed

[0090] On April 13, at 3:00 PM Beijing time in Dongguan City, Guangdong Province, the ambient temperature was 30-34°C and the illuminance was 102-349 W / m 2The humidity was 37-48% RH. Measurements were performed using a SMART SENSOR high-precision, fast-response thermometer and hygrometer (with an instrument error of 0.1°C and 1% RH), a Xinsite HT-9815 thermocouple (with an instrument error of ±0.1°C), and a sun illuminometer (with an instrument error of ±0.1W / ㎡). The probes of the thermometer and hygrometer and sun illuminometer were placed at the midpoint between the two experimental shed models. The probes of the thermocouples were placed inside the experimental boxes placed under the two experimental sheds (the probes were fixed and suspended in the center of the box and did not come into contact with any entities).

[0091] The surface of the non-membrane test shed was not covered with film and was directly exposed to sunlight. The outside of the film test shed was fully covered with a radiant cooling film (a flexible radiant cooling film with a polymer metasurface structure). Both test sheds were made of PVC film sheets with an arc-shaped structure. The test boxes below were self-heated and kept at a constant temperature of 40°C at the beginning of the experiment. The test box below the film test shed was covered with a radiant cooling film. The temperature, humidity, light intensity and other data were recorded every three minutes for a total of 60 minutes. The data were plotted into images using Origin software, and the obtained graph is shown in the figure ( Figure 10 、 Figure 11 ).

[0092] Depend on Figure 10 It can be seen that within 0-10 minutes after the start of the experiment, the internal temperature of the two experimental boxes began to rise sharply with the operation of the heating rod. The internal temperature value and temperature rise of the experimental box in the membrane experimental shed were smaller than those in the non-membrane experimental shed. Within 10-30 minutes, the maximum temperature difference between the two experimental boxes reached 5.2 ℃. From 30 minutes to the end of the experiment, although the temperature of the ordinary shed experimental box was still significantly higher than that of the membrane experimental shed, the temperature difference was smaller than that in the first 30 minutes. Figure 11 It can be seen that after 30 minutes, the light intensity dropped significantly, followed by a sharp increase in humidity, which affected the work of the radiant cooling film. The experiment showed that the film-coated experimental shed with the radiant cooling test box had a significant cooling effect under both strong and weak light conditions, and the cooling effect was more significant under strong light and low humidity conditions.

[0093] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A sunshade and heat dissipation product for a charging station based on a radiation cooling film, characterized in that: include: A sunshade main body (1), the upper portion of the sunshade main body (1) extending laterally in a horizontal direction to block sunlight; A heat conducting pipe (2), the heat conducting pipe (2) being located inside the awning body (1); A radiation cooling film (3), the radiation cooling film (3) being adhered to the upper surface of the awning main body (1).

2. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 1 is characterized in that: The heat conducting pipe (2) is a solid metal pipe.

3. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 1 is characterized in that: The heat conducting pipe (2) is a hollow metal pipe.

4. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 3 is characterized in that: The heat conducting pipe (2) is filled with cooling liquid.

5. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 4 is characterized in that: The surface of the awning body (1) is provided with a liquid inlet joint connected to one end of the heat conducting pipe (2), and a liquid outlet joint connected to the other end of the heat conducting pipe (2).

6. The charging station sunshade and heat dissipation product based on radiant cooling film according to claim 1 is characterized in that: The sunshade main body (1) has an overall arc-shaped structure. The radiation cooling film (3) is attached to the top surface of the entire awning body (1).

7. The charging station sunshade and heat dissipation product based on radiant cooling film according to claim 1 is characterized in that: The sunshade main body (1) comprises a transverse portion (101) extending in a horizontal direction, and a longitudinal portion (102) fixedly arranged below the transverse portion (101); Wherein, the radiation cooling film (3) is attached to the top surface of the transverse portion (101).

8. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 7, characterized in that: A display screen (4) is provided on the inner side of the longitudinal portion (102).

9. The radiant cooling film-based sunshade and heat dissipation product for charging stations according to claim 8, characterized in that: The display screen (4) is thermally connected to the heat pipe (2).