Magnetic type mobile phone heat dissipation dual-purpose handheld fan

By designing a magnetic handheld fan that can be used for both mobile phone cooling and heat dissipation, and combining a fan component with a cooling component, the problem of the single function of existing devices is solved. This achieves a multi-functional combination of mobile phone cooling and handheld fan, improving the efficiency and portability of the device.

CN224120398UActive Publication Date: 2026-04-14WANLAIHUA INT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing mobile phone cooling fans and handheld fans are usually separate products, which requires users to carry multiple devices, increasing inconvenience and burden, and cannot meet the needs of simultaneously cooling the mobile phone and providing localized cooling.

Method used

A magnetic handheld fan for mobile phone cooling was designed, combining a fan component and a cooling component. The fan component blows air to cool the phone, while the cooling component is magnetically attached to the back of the phone for heat exchange. The phone's heat dissipation function is achieved by using a semiconductor cooling chip and a heat sink.

Benefits of technology

It combines the functions of mobile phone cooling and handheld fan, serving as both a mobile phone cooler and a regular handheld fan, thus improving the device's efficiency and portability and meeting the needs of various occasions.

✦ Generated by Eureka AI based on patent content.

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Abstract

A magnetic type mobile phone heat dissipation dual-purpose handheld fan comprises a fan body and a handheld part which is formed on the fan body and provided with a power source assembly, the fan body comprises a first shell, a second shell, a first fan assembly and a second fan assembly, and the fan assembly is arranged in the first shell; the magnetic attraction part is fixedly arranged on the air outlet surface; the cooling assembly is arranged in the first space and electrically connected with the power supply assembly, and the contact face, facing the outer side of the air outlet face, of the cooling assembly is exposed from the air outlet face. The technical scheme provided by the embodiment of the utility model can be used as a radiator of a mobile phone, can prevent the mobile phone or other electronic products from being overheated in the use process, can also be used as a conventional handheld fan for heat dissipation, can improve the use function of the fan, and is convenient to use. And the use requirements of users on various occasions are met.
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Description

Technical Field

[0001] This utility model relates to the field of small household appliance fan technology, specifically to a magnetic handheld fan that can be used for both mobile phone cooling and heat dissipation. Background Technology

[0002] As smartphones become increasingly powerful, they tend to generate a lot of heat when running demanding games, engaging in prolonged video calls, or performing other high-load calculations. This can lead to decreased phone performance, shortened battery life, and even lag. To address this issue, various mobile phone cooling devices have emerged on the market, with mobile phone cooling fans being the most common.

[0003] Meanwhile, in daily life, people also need portable handheld fans for localized cooling when outdoors. However, existing mobile phone cooling fans and handheld fans are usually separate products with limited functionality, requiring users to carry multiple devices, which is inconvenient and increases their carrying burden. Therefore, developing a dual-purpose device that can both cool mobile phones and function as a regular handheld fan is of significant practical importance. This would save both the device's space and practical living costs; therefore, a technical solution to address the aforementioned technical problems is urgently needed. Utility Model Content

[0004] The purpose of this utility model is to provide a magnetic handheld fan that can be used for both mobile phone cooling and heat dissipation. To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0005] A magnetic handheld fan for both mobile phone cooling and heat dissipation includes a fan body and a handheld part formed on the fan body and equipped with a power supply component. The fan body includes:

[0006] A first housing has a first space inside it, which penetrates the first housing and forms an air outlet and an air inlet at both ends of the first housing. A side air vent is also provided on the outer shell of the first housing, and the side air vent is close to the air outlet.

[0007] A fan assembly is disposed in the first space and electrically connected to the component, for blowing airflow along the air outlet surface;

[0008] A magnetic suction component, which is fixedly installed on the air outlet surface;

[0009] A cooling component is disposed within the first space and electrically connected to the power supply component, wherein the contact surface of the cooling component facing the outside of the air outlet surface is exposed from the air outlet surface.

[0010] Furthermore, the cooling component includes:

[0011] A thermoelectric cooler, wherein the thermoelectric cooler is electrically connected to the power supply assembly, and the cooling surface of the thermoelectric cooler is defined as the contact surface exposed from the air outlet surface;

[0012] The first heat sink is attached to the heating surface of the semiconductor cooling chip to conduct heat away from the heating surface.

[0013] Furthermore, the cooling component also includes a second heat sink, which is attached to the first heat sink, and the second heat sink has a plurality of protrusions spaced apart from each other and protruding from the circumferential surface of the second heat sink along the circumferential direction.

[0014] Furthermore, a bracket is fixedly installed within the first space, and an air duct for airflow is formed inside the bracket, with the fan assembly installed inside the air duct.

[0015] Furthermore, an end cap is provided on the first housing, the end cap is installed on the air outlet surface and has an air outlet that communicates with the first space, and the magnetic suction component and the cooling component are installed on the end cap.

[0016] Furthermore, one end of the handheld part is fixedly mounted on the side wall of the fan body, and the other end extends outward. The handheld part includes a second housing, and a second space for mounting the power supply assembly is formed inside the second housing.

[0017] Furthermore, the power supply assembly includes a battery that provides power and a circuit board electrically connected to the battery. The circuit board is provided with switch buttons for starting and stopping the fan assembly and the cooling assembly, respectively.

[0018] The beneficial effects of this utility model are as follows:

[0019] When the handheld fan is operating normally, the battery assembly provides a starting unit to the fan assembly, thereby starting the fan assembly to rotate. This agitates the airflow, directing it from the inlet to the outlet, thus facilitating cooling for the user. When the handheld fan is used to cool electronic products such as mobile phones, the contact surface of the cooling component is exposed on the outlet surface, allowing it to be magnetically attached to the back of the phone or other electronic product. In this case, the contact surface of the cooling component comes into contact with the back of the phone or other electronic product, enabling heat exchange and cooling. The technical solution provided by this embodiment can be used as a heat sink for mobile phones, preventing overheating during use. It can also function as a regular handheld fan for cooling, improving the fan's functionality and meeting the user's needs in various situations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded structural diagram of the fan body in this utility model.

[0022] Figure 3 This is a cross-sectional view of the present invention.

[0023] Figure 4 This is a schematic diagram of the exploded structure of this utility model in cross-section.

[0024] In the diagram: 100 - Fan body; 200 - Handheld part; 210 - Power supply assembly; 110 - First housing; 111 - First space; 112 - Air outlet; 113 - Air inlet; 114 - Side air vent; 120 - Fan assembly; 130 - Magnetic attachment; 140 - Cooling assembly; 141 - Contact surface; 142 - Semiconductor cooling chip; 143 - First heat sink; 144 - Second heat sink; 1441 - Protrusion; 115 - Bracket; 116 - Air duct; 117 - End cap; 118 - Air outlet; 201 - Second housing; 202 - Second space; 211 - Battery; 212 - Circuit board; 213 - Switch button. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0026] In this embodiment of the utility model, a magnetic handheld fan for both mobile phone cooling and heat dissipation is provided. It can be used as a normal fan and a mobile phone heat sink. When used as a mobile phone heat sink, it can be attached to the back of the mobile phone by magnetic attachment 130 and make contact with the back of the mobile phone by contact surface 141 of cooling component 140, thereby cooling the back of the mobile phone. When used as a normal handheld fan, the user's hand holding part 200 allows the fan body 100 to cool the user's local area.

[0027] Specifically, such as Figure 1-4 As shown, this utility model embodiment provides a magnetic mobile phone cooling dual-purpose handheld fan, including a fan body 100 and a handheld part 200 formed on the fan body 100 and equipped with a power supply component 210. The fan body 100 includes a first housing 110, a fan component 120, a magnetic component 130, and a cooling component 140. The first housing 110 has a first space 111 inside, and the first space 111 penetrates the first housing 110 and is located at both ends of the first housing 110 to form an air outlet surface 112. The first housing 110 has an air inlet 113 and a side air vent 114 on its outer shell, which is close to the air outlet 112. The fan assembly 120 is disposed in the first space 111 and electrically connected to the assembly, and is used to blow air along the air outlet 112. The magnetic component 130 is fixedly installed on the air outlet 112. The cooling component 140 is disposed in the first space 111 and electrically connected to the power supply component 210, and its contact surface 141 facing the outside of the air outlet 112 is exposed from the air outlet 112.

[0028] When the handheld fan is operating normally, the battery 211 assembly provides a starting unit to the fan assembly 120, thereby starting the fan assembly 120 to rotate. This allows the airflow to be agitated and flow from the air inlet surface 113 to the air outlet surface 112, thus facilitating cooling for the user. When the handheld fan is used to cool electronic products such as mobile phones, the contact surface 141 of the cooling component 140 is exposed on the air outlet surface 112, and is thus attached to the back of the mobile phone or other electronic product by the magnetic component 130. At this time, the contact surface 141 of the cooling component 140 is in contact with the back of the mobile phone or other electronic product, allowing heat exchange between the cooling component 140 and the electronic product, thereby cooling the mobile phone or other electronic product. The technical solution provided by this utility model embodiment can be used as a heat sink for mobile phones, preventing overheating of mobile phones or other electronic products during use. At the same time, it can also be used as a conventional handheld fan to provide heat dissipation, improving the fan's functionality and meeting the user's needs in various situations.

[0029] In this embodiment, the cooling component 140 includes a thermoelectric cooler 142 and a first heat sink 143. The thermoelectric cooler 142 is electrically connected to the power supply component 210, and the cooling surface of the thermoelectric cooler is defined as the contact surface 141 exposed from the air outlet surface 112. The first heat sink 143 is attached to the heating surface of the thermoelectric cooler 142 to conduct heat away from the heating surface.

[0030] During the cooling process of the mobile phone, the power supply component 210 provides power to the thermoelectric cooler 142, causing the side of the thermoelectric cooler 142 facing the electronic product to cool. This allows for heat exchange with the electronic product when they come into contact, thereby cooling the electronic product. In this embodiment, to protect the thermoelectric cooler 142 and improve the temperature conduction effect, a stainless steel conductive sheet is also attached to the contact surface 141. This allows for heat dissipation of the mobile phone or other electronic products when the stainless steel conductive sheet comes into contact with the electronic product. Meanwhile, the other side of the thermoelectric cooler 142 is the heating surface, and the first heat sink 143 is attached to the heating surface to dissipate the heat generated by the thermoelectric cooler 142. It is worth noting that during the cooling process of the mobile phone, the back of the phone is attracted to the air outlet surface 112 of the fan body 100 via the magnetic attachment 130, which allows the back of the phone to come into contact with the cooling surface of the semiconductor cooling chip 142, thereby effectively cooling the phone. At the same time, the fan assembly 120 is activated, and the airflow generated by the fan assembly 120 is blown towards the air outlet surface 112, which allows the cooled air around the cooling surface to be blown towards the back of the phone from the air outlet surface 112, thereby improving the cooling effect. Meanwhile, due to the operation of the fan assembly 120, the air pressure in the first space 111 continuously increases, and the airflow is blown out along the side air vent 114 opened in the first housing 110. At this time, the heat emitted by the first heat sink 143 is carried out in the side air vent 114.

[0031] In this embodiment, to improve heat dissipation from the heating surface of the thermoelectric cooler 142, the cooling assembly 140 further includes a second heat sink 144. The second heat sink 144 is attached to the first heat sink 143, and the second heat sink 144 has a plurality of spaced-apart protrusions 1441 extending beyond its circumferential surface. By attaching the second heat sink 144 to the side of the first heat sink 143 away from the thermoelectric cooler 142, heat from the first heat sink 143 can be transferred to the second heat sink 144 and then to the air through the protrusions 1441, thereby increasing the contact area 141 with the air, improving heat dissipation performance, and the hot air is blown out through the side vent 114 by the fan assembly 120.

[0032] To facilitate the installation of the fan assembly 120, a bracket 115 is also fixedly installed within the first space 111. The bracket 115 has an air duct 116 formed inside for airflow, and the fan assembly 120 is installed within the air duct 116. By setting up the air duct 116, the airflow velocity within the air duct 116 can be increased, thereby improving the cooling effect when used as a normal fan.

[0033] In this embodiment, in order to facilitate the installation of the cooling component 140 and the magnetic component 130, an end cap 117 is also provided on the first housing 110. The end cap 117 is installed on the air outlet surface 112 and has an air outlet 118 that communicates with the first space 111. The magnetic component 130 and the cooling component 140 are installed on the end cap 117.

[0034] In this embodiment, one end of the handheld part 200 is fixedly mounted on the side wall of the fan body 100, and the other end extends outward. The handheld part 200 includes a second housing 201, and a second space 202 for mounting the power supply assembly 210 is formed inside the second housing 201. The power supply assembly 210 includes a battery 211 that provides power and a circuit board 212 electrically connected to the battery 211. The circuit board 212 is provided with switch buttons 213 for starting and stopping the fan assembly 120 and the cooling assembly 140 respectively. By controlling the fan assembly 120 and the cooling assembly 140 separately with the two switch buttons 213, it is convenient to switch the usage mode or adjust the cooling performance. That is, in normal fan mode, the cooling assembly 140 can also be turned on, which can improve the cooling effect on the human body when the air outlet surface 112 of the fan body 100 is close to the human body.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A magnetic handheld fan for both mobile phone cooling and heat dissipation, comprising a fan body and a handheld part formed on the fan body and equipped with a power supply assembly, characterized in that, The fan body includes: A first housing has a first space inside it, which penetrates the first housing and forms an air outlet and an air inlet at both ends of the first housing. A side air vent is also provided on the outer shell of the first housing, and the side air vent is close to the air outlet. A fan assembly is disposed in the first space and electrically connected to the component, for blowing airflow along the air outlet surface; A magnetic suction component, which is fixedly installed on the air outlet surface; A cooling component is disposed within the first space and electrically connected to the power supply component, wherein the contact surface of the cooling component facing the outside of the air outlet surface is exposed from the air outlet surface.

2. The magnetic dual-purpose handheld fan for mobile phone cooling according to claim 1, characterized in that, The cooling component includes: A thermoelectric cooler, wherein the thermoelectric cooler is electrically connected to the power supply assembly, and the cooling surface of the thermoelectric cooler is defined as the contact surface exposed from the air outlet surface; The first heat sink is attached to the heating surface of the semiconductor cooling chip to conduct heat away from the heating surface.

3. A magnetic handheld fan for both mobile phone cooling and heat dissipation according to claim 2, characterized in that, The cooling component further includes a second heat sink, which is attached to the first heat sink, and the second heat sink has a plurality of protrusions spaced apart from each other and protruding from the circumferential surface of the second heat sink along the circumferential direction.

4. A magnetic handheld fan for both mobile phone cooling and heat dissipation according to claim 1, characterized in that, A bracket is also fixedly installed within the first space. An air duct is formed inside the bracket to allow airflow, and the fan assembly is installed inside the air duct.

5. A magnetic handheld fan for both mobile phone cooling and heat dissipation according to claim 1, characterized in that, An end cap is also provided on the first housing. The end cap is installed on the air outlet surface and has an air outlet that communicates with the first space. The magnetic suction component and the cooling component are installed on the end cap.

6. A magnetic handheld fan for both mobile phone cooling and heat dissipation according to claim 1, characterized in that, One end of the handheld part is fixedly mounted on the side wall of the fan body, and the other end extends outward. The handheld part includes a second housing, and the second housing has a second space formed inside for mounting the power supply assembly.

7. A magnetic handheld fan for both mobile phone cooling and heat dissipation according to claim 6, characterized in that, The power supply assembly includes a battery that provides power and a circuit board that is electrically connected to the battery. The circuit board is provided with switch buttons that control the start and stop of the fan assembly and the cooling assembly, respectively.