Handheld refrigeration fan

By combining the air duct design with the hinged base and rotating shaft, and the stainless steel cooling fins, the problems of slow angle adjustment and cooling speed of handheld cooling fans are solved, achieving directional air delivery and efficient cooling in multiple scenarios.

CN224174292UActive Publication Date: 2026-04-28NINGHAI YAHANG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGHAI YAHANG ELECTRIC CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing handheld cooling fans have limited functionality, cannot adjust the angle, have slow cooling speed, and are not ideal in terms of performance.

Method used

The air duct design uses a hinged base and hinged slot to connect the rotating shaft. It combines a rubber damping ring to achieve angle adjustment, and has built-in stainless steel cooling plates and semiconductor cooling plates. It also adds a heat dissipation transition aluminum block to improve cooling efficiency, and has anti-slip grooves on the handle to improve grip comfort.

Benefits of technology

It enables flexible adjustment of the air duct angle, resulting in a sharp drop in airflow temperature, significantly improved cooling efficiency, and a more stable and comfortable grip, meeting the needs of directional air delivery in multiple scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a handheld refrigeration fan, and relates to the technical field of small household appliances. Comprising a fan body, the fan body comprises a handle and an air duct movably arranged at the top of the handle, a motor is arranged in the air duct, a front cover is arranged at one end of the air duct, a refrigeration piece is arranged in the front cover, a cold conduction piece corresponding to the refrigeration face of the refrigeration piece is further arranged on one side of the front cover, and a hinge base is arranged at the bottom of the air duct. The air duct and the handle are connected through a hinge seat and a hinge groove matched with a rotating shaft, angle adjustment and positioning of the air duct are achieved by combining a damping rubber ring made of rubber materials, and the multi-scene directional air supply requirement is met, a stainless steel cold conduction piece is arranged in the front cover and directly attached to the refrigeration face of a semiconductor refrigeration piece, and the temperature drops suddenly when airflow passes through the cold conduction piece. And meanwhile, direct ice compress physical cooling of the cold conduction piece is supported, the refrigerating efficiency is remarkably improved compared with a traditional fan, a user can hold the fan more comfortably and stably due to the arrangement of the anti-skid groove of the handle, and the use requirement of the user is met.
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Description

Technical Field

[0001] This utility model relates to the field of small household appliance technology, specifically a handheld cooling fan. Background Technology

[0002] A handheld cooling fan is a small, portable device that combines fan airflow with semiconductor cooling technology. It can actively cool the airflow to reduce its temperature and is suitable for various scenarios such as outdoors and in the office. However, existing handheld cooling fans still have the following shortcomings in use:

[0003] Common handheld cooling fans on the market have limited functions, cannot adjust the angle, and can only be adjusted by changing the angle of the hand, which is quite limited and the cooling speed is slow, resulting in unsatisfactory performance. Utility Model Content

[0004] This invention provides a handheld cooling fan to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a handheld cooling fan, comprising a fan body, the fan body including a handle and a fan tube movably disposed on the top of the handle, a motor being disposed inside the fan tube, a front cover being disposed at one end of the fan tube, a cooling plate being disposed inside the front cover, and a cooling fin being disposed on one side of the front cover corresponding to the cooling surface of the cooling plate.

[0006] Furthermore, the bottom of the air duct is provided with a hinge seat, and the top of the handle is provided with a hinge groove that is movably fitted with the bottom end of the hinge seat.

[0007] Furthermore, both sides of the bottom end of the hinge seat are fitted with rotating shafts that are rotatably connected to the inside of the hinge groove, and a rubber ring is also provided between the rotating shaft and the hinge seat.

[0008] Furthermore, the interior of the front cover is provided with a heat dissipation transition aluminum block corresponding to the heating surface of the cooling chip.

[0009] Furthermore, the interior of the air duct is provided with a heat dissipation aluminum block located on one side of the heat dissipation transition aluminum block, and the motor is located on the side of the heat dissipation aluminum block away from the heat dissipation transition aluminum block.

[0010] Furthermore, the inside of the air duct is also provided with an air cover that is fitted over the motor, and the end of the air duct away from the front cover is provided with a rear cover.

[0011] Furthermore, the handle is equipped with a control board inside, with a charging port on one side and at least one control button on the other side.

[0012] Furthermore, one side of the handle is provided with a button corresponding to the control button, and the other side is provided with a through hole for exposing the charging interface.

[0013] Furthermore, the handle also contains a battery that is electrically connected to the control board.

[0014] Furthermore, the bottom of the handle is provided with a battery compartment that fits into the bottom of the battery.

[0015] Compared with the prior art, this utility model provides a handheld cooling fan with the following advantages:

[0016] This handheld cooling fan features a hinged connection between the blower and handle, utilizing a hinged base and hinged groove. Combined with a rubber damping ring, it allows for adjustable blower angle positioning, meeting the directional airflow needs of various scenarios. The front cover incorporates a stainless steel cooling plate that directly adheres to the cooling surface of the semiconductor cooling chip, causing a rapid temperature drop as airflow passes over the cooling plate. It also supports direct ice application for physical cooling, significantly improving cooling efficiency compared to traditional fans. The anti-slip grooves on the handle provide a more comfortable and stable grip, meeting user needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is an exploded view of the structure of this utility model;

[0020] Figure 4 This is an exploded view of the structure of this utility model.

[0021] In the diagram: 1. Fan body; 11. Handle; 111. Battery compartment; 112. Battery; 113. Button; 114. Hinge slot; 12. Air duct; 121. Hinge base; 122. Shaft; 123. Rubber ring; 13. Heat dissipation aluminum block; 14. Front cover; 141. Cooling fin; 15. Cooling fin; 151. Heat dissipation transition aluminum block; 16. Motor; 17. Fan cover; 18. Rear cover; 19. Control board; 191. Charging interface; 192. Control buttons. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model discloses a handheld cooling fan, including a fan body 1. The fan body 1 includes a handle 11 and a fan tube 12 movably disposed on the top of the handle 11. A motor 16 is disposed inside the fan tube 12. A front cover 14 is disposed at one end of the fan tube 12. A cooling plate 15 is disposed inside the front cover 14. A cooling guide plate 141 corresponding to the cooling surface of the cooling plate 15 is also disposed on one side of the front cover 14. The cooling guide plate 141 is located on the cooling surface of the cooling plate 15. Both the cooling guide plate 141 and the front cover 14 are made of stainless steel, which expands the cooling area. The temperature drops rapidly when air passes through it. Moreover, one side of the cooling guide plate 141 is smooth, so users can use the cooling guide plate 141 to directly apply ice to the body for cooling, making it more convenient to use. The motor 16 is a commonly used small fan motor with blades.

[0024] Specifically, the bottom of the air duct 12 is provided with a hinge seat 121, the top of the handle 11 is provided with a hinge groove 114 that is movably sleeved with the bottom end of the hinge seat 121, both sides of the bottom end of the hinge seat 121 are provided with rotating shafts 122 that are rotatably connected to the inside of the hinge groove 114, and a rubber ring 123 is also provided between the rotating shaft 122 and the hinge seat 121.

[0025] In this embodiment, the rubber ring 123 is sleeved at the connection between the rotating shaft 122 and the hinge groove 114. The rubber ring 123 is made of rubber to increase rotational damping, so that the air duct 12 can achieve the function of angle positioning after rotating inside the hinge groove 114 through the hinge seat 121, making it more convenient to use.

[0026] Specifically, the front cover 14 is provided with a heat dissipation transition aluminum block 151 corresponding to the heating surface of the cooling chip 15.

[0027] In this embodiment, one side of the heat dissipation transition aluminum block 151 is in contact with the heat dissipation aluminum block 13, which can quickly dissipate the heat from the heating surface of the cooling chip 15 and ensure the performance of the cooling chip 15.

[0028] Specifically, the air duct 12 is provided with a heat dissipation aluminum block 13 located on one side of the heat dissipation transition aluminum block 151, and the motor 16 is located on the side of the heat dissipation aluminum block 13 away from the heat dissipation transition aluminum block 151.

[0029] In this embodiment, the heat dissipation aluminum block 13 is disc-shaped, and multiple fins of varying lengths extend from one edge of the heat dissipation aluminum block 13, which uniformly and densely cut the airflow, allowing the airflow to make more full contact with the cooling area, turning hot air into cool air.

[0030] Specifically, the inside of the air duct 12 is also provided with a shroud 17 that is sleeved on the outside of the motor 16, and the end of the air duct 12 away from the front cover 14 is provided with a rear cover 18.

[0031] Specifically, the handle 11 has a control board 19 inside. One side of the control board 19 has a charging interface 191, and the other side has at least one control button 192. One side of the handle 11 has a button 113 corresponding to the control button 192, and the other side has a through hole for exposing the charging interface 191.

[0032] In this embodiment, the handle 11 is composed of two half-shells fastened together by screws. The bottom of the two half-shells is provided with a circular groove that engages with the top of the battery compartment 111. There are two control buttons 192, namely a fan speed adjustment button and a cooling intensity adjustment button.

[0033] Specifically, the handle 11 also contains a battery 112 that is electrically connected to the control board 19.

[0034] In this embodiment, the battery 112 is a rechargeable lithium battery 112, which can be charged by connecting the charging interface 191 and the power source through a charging cable.

[0035] Specifically, the bottom of the handle 11 is provided with a battery compartment 111 that is fitted into the bottom of the battery 112.

[0036] In this embodiment, the battery compartment 111, together with the handle 11, is used to install the battery 112. The exterior of the battery compartment 111 is provided with several grooves, which provide an anti-slip effect when the user holds it.

[0037] In summary, this handheld cooling fan connects the blower 12 and handle 11 via a hinged base 121 and hinged groove 114 with a rotating shaft 122. Combined with a rubber damping ring 123, the angle of the blower 12 can be adjusted and positioned to meet the directional airflow needs of various scenarios. The front cover 14 has a built-in stainless steel cooling plate 141 that directly contacts the cooling surface of the semiconductor cooling chip 15, causing the airflow to drop sharply in temperature when passing through the cooling plate 141. It also supports direct ice application for physical cooling of the cooling plate 141, significantly improving the cooling efficiency compared to traditional fans. The anti-slip groove on the handle 11 makes it more comfortable and stable for users to hold, meeting their usage needs.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld cooling fan, comprising a fan body (1), characterized in that: The fan body (1) includes a handle (11) and a fan tube (12) movably disposed on the top of the handle (11). A motor (16) is disposed inside the fan tube (12). A front cover (14) is disposed at one end of the fan tube (12). A cooling plate (15) is disposed inside the front cover (14). A cooling fin (141) corresponding to the cooling surface of the cooling plate (15) is also disposed on one side of the front cover (14).

2. A handheld cooling fan according to claim 1, characterized in that: The bottom of the air duct (12) is provided with a hinge seat (121), and the top of the handle (11) is provided with a hinge groove (114) that is movably connected to the bottom end of the hinge seat (121).

3. A handheld cooling fan according to claim 2, characterized in that: Both sides of the bottom end of the hinge seat (121) are fitted with rotating shafts (122) that are rotatably connected to the inside of the hinge groove (114). A rubber ring (123) is also provided between the rotating shaft (122) and the hinge seat (121).

4. A handheld cooling fan according to claim 1, characterized in that: The front cover (14) is provided with a heat dissipation transition aluminum block (151) corresponding to the heating surface of the cooling chip (15).

5. A handheld cooling fan according to claim 1, characterized in that: The air duct (12) is provided with a heat dissipation aluminum block (13) located on one side of the heat dissipation transition aluminum block (151), and the motor (16) is located on the side of the heat dissipation aluminum block (13) away from the heat dissipation transition aluminum block (151).

6. A handheld cooling fan according to claim 1, characterized in that: The inside of the air duct (12) is also provided with a wind cover (17) that is sleeved on the outside of the motor (16), and a rear cover (18) is provided at the end of the air duct (12) away from the front cover (14).

7. A handheld cooling fan according to claim 1, characterized in that: The handle (11) is equipped with a control board (19) inside. One side of the control board (19) is equipped with a charging interface (191), and the other side is equipped with at least one control button (192).

8. A handheld cooling fan according to claim 1, characterized in that: One side of the handle (11) is provided with a button (113) corresponding to the control button (192), and the other side is provided with a through hole for exposing the charging interface (191).

9. A handheld cooling fan according to claim 1, characterized in that: The handle (11) also contains a battery (112) that is electrically connected to the control board (19).

10. A handheld cooling fan according to claim 1, characterized in that: The bottom of the handle (11) is provided with a battery compartment (111) that is fitted into the bottom of the battery (112).