A ceiling fan with refrigeration

By installing auxiliary fan blades on the ceiling fan rotor assembly and improving the refrigeration mechanism, the problems of insufficient airflow at the bottom of the ceiling fan and condensation accumulation have been solved, achieving uniform cooling throughout the room and preventing condensation corrosion, extending service life, and improving cooling efficiency and safety.

CN224470358UActive Publication Date: 2026-07-07NEW CENTURY ELECTRICAL MFG ZHONGSHAN

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEW CENTURY ELECTRICAL MFG ZHONGSHAN
Filing Date
2025-06-20
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing ceiling fans with cooling function have weak airflow at the bottom, resulting in uneven cooling and easy accumulation of condensation in the cooling mechanism, which poses risks of electric leakage and corrosion.

Method used

An auxiliary fan blade assembly is installed on the ceiling fan rotor assembly. By directionally disturbing the airflow, combined with the design of the refrigeration mechanism, including the refrigeration semiconductor, metal cooling plate and cooling fan, air circulation is enhanced, and the auxiliary fan blade assembly achieves whole-house circulation and prevents condensation from accumulating.

Benefits of technology

It achieves uniform cooling of the entire room by ceiling fans, prevents corrosion from condensation, extends service life, and improves cooling efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224470358U_ABST
    Figure CN224470358U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of ceiling fan technology, specifically to a cooling ceiling fan, including a ceiling fan body and a cooling mechanism located at the bottom of the ceiling fan body. The ceiling fan body includes an external rotor motor, a main fan blade assembly, and a hanging assembly. The external rotor motor includes a rotor assembly and a stator assembly. One end of the hanging assembly is connected to the stator assembly, and the other end is connected to the ceiling. The main fan blade assembly is connected to the rotor assembly. The ceiling fan body also includes an auxiliary fan blade assembly for disturbing the external airflow of the cooling mechanism, so as to achieve whole-room circulation of the cooled air and prevent condensation from accumulating on the cooling mechanism. The auxiliary fan blade assembly is connected to the rotor assembly. In this application, the auxiliary fan blade assembly directionally disturbs the cooling air, preventing the cold air from sinking and achieving uniform cooling throughout the room. Furthermore, by setting the auxiliary fan blade assembly, air circulation is enhanced, allowing condensation on the cooling mechanism to evaporate quickly, preventing condensation from dripping and affecting use, and also preventing condensation from corroding the cooling mechanism, thus extending its service life.
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Description

[Technical Field]

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

[0002] A ceiling fan is an electrically powered ventilation device fixed to the ceiling, consisting of a motor, rotor, fan blades, a hanging rod, and a control system. Its core function is to drive airflow through rotating blades, accelerating the evaporation of sweat and enhancing heat convection, thereby producing a perceived cooling effect. Unlike air conditioners, ceiling fans themselves do not lower the air temperature; therefore, ceiling fans with built-in cooling units have emerged on the market. For example, application number "201120178887.5" discloses a new type of ceiling fan with a cooling unit. This application places the cooling unit below the main body of the fan, where the airflow is weak, making it difficult for cool air to spread throughout the room, resulting in uneven cooling. Furthermore, because of the cooling unit, water droplets easily condense on its surface, and long-term accumulation may lead to electrical leakage risks, corrosion of components, and dripping water affecting the user experience.

[0003] In view of the above-mentioned technical problems, this utility model is proposed in this study. [Utility Model Content]

[0004] The technical problem to be solved by this utility model is to provide a ceiling fan that can cool the air. An auxiliary fan blade assembly is set on the rotor assembly. The auxiliary fan blade assembly directionally disturbs the airflow, which solves the problems of weak wind at the bottom of the ceiling fan, cold air accumulation and sinking, and easy condensation accumulation in the cooling mechanism.

[0005] To solve the above-mentioned technical problems, this utility model proposes a cooling ceiling fan, including a ceiling fan body and a cooling mechanism disposed at the bottom of the ceiling fan body. The ceiling fan body includes an external rotor motor, a main fan blade assembly, and a hanging assembly. The external rotor motor includes a rotor assembly and a stator assembly. One end of the hanging assembly is connected to the stator assembly, and the other end is connected to the ceiling. The main fan blade assembly is connected to the rotor assembly. The ceiling fan body also includes an auxiliary fan blade assembly for disturbing the airflow outside the cooling mechanism so that the air cooled by the cooling mechanism can be circulated throughout the room and for preventing condensation from accumulating on the cooling mechanism. The auxiliary fan blade assembly is connected to the rotor assembly.

[0006] As described above, a cooling ceiling fan includes a housing connected to the bottom of a stator assembly, a connecting cover connected to the housing, a cooling component, and a circuit board electrically connected to the cooling component.

[0007] A cavity is formed between the housing and the connecting cover, and the circuit board is disposed in the cavity and used to control the cooling components;

[0008] The cooling component is located at the bottom of the connecting cover and is used to reduce the air temperature around the connecting cover.

[0009] As described above, a cooling ceiling fan includes a cooling component comprising a cooling semiconductor disposed in a connecting cover and a metal cooling plate disposed at the bottom of the connecting cover and attached to the cooling semiconductor. The metal cooling plate is used to reduce its own temperature and cool the surrounding air through heat conduction.

[0010] As described above, a cooling ceiling fan has a cavity with a cooling fan for dissipating heat from the back of the circuit board and the cooling semiconductor, and the housing has a plurality of heat dissipation holes formed thereon.

[0011] The cooling ceiling fan described above uses a stainless steel metal cooling plate.

[0012] As described above, a cooling ceiling fan has a heat sink in its cavity, the bottom of which abuts against the back of a cooling semiconductor, and the circuit board is mounted on the heat sink.

[0013] As described above, a cooling ceiling fan includes an auxiliary fan blade assembly comprising an annular plate connected to the lower part of a rotor assembly. The auxiliary fan blade assembly also includes a blade group, which consists of several thin blades evenly spaced and distributed around the outer edge of the annular plate. The cross-section of the thin blades is arc-shaped.

[0014] As described above, a cooling ceiling fan has two sets of blades, which are respectively distributed on the upper and lower sides of the annular plate.

[0015] As described above, in a type of cooling ceiling fan, the cooling mechanism is located in the blade group on the lower side of the annular plate, and the lower part of the rotor assembly is located in the blade group on the upper side of the annular plate.

[0016] As described above, in a type of cooling ceiling fan, the blade assembly on the lower side of the annular plate extends downward beyond the bottom of the cooling mechanism.

[0017] Compared with the prior art, the cooling ceiling fan of this utility model has the following advantages:

[0018] 1. In this application, the auxiliary fan blade assembly is used to directionally disturb the cooling air, preventing the cooling air from sinking and achieving uniform cooling of the entire room.

[0019] 2. By setting the auxiliary fan blade assembly, this application can enhance the air circulation in the refrigeration unit area, allowing the condensate on the refrigeration unit to evaporate quickly, preventing condensate from dripping and affecting use, and also preventing condensate from corroding the refrigeration unit, thus extending its service life. [Attached Image Description]

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the refrigeration mechanism in this utility model.

[0023] Figure 3 This is a schematic diagram of the rotor assembly in this utility model.

[0024] Figure 4 This is another structural schematic diagram of the refrigeration mechanism in this utility model.

[0025] Figure 5 This is an exploded structural diagram of the refrigeration mechanism in this utility model.

[0026] Figure 6 This is another exploded structural diagram of the refrigeration mechanism in this utility model.

[0027] Figure 7 This is another exploded structural diagram of the refrigeration mechanism in this utility model.

[0028] Figure 8 This is a schematic diagram of the auxiliary fan blade assembly in this utility model.

[0029] Figure 9 This is another structural schematic diagram of the auxiliary fan blade assembly in this utility model.

[0030] In the diagram: 1. Ceiling fan body; 10. External rotor motor; 100. Rotor assembly; 101. Stator assembly; 11. Main fan blade assembly; 12. Hanging assembly;

[0031] 2. Refrigeration mechanism; 20. Housing; 21. Connecting cover; 200. Cavity; 22. Refrigeration component; 220. Refrigeration semiconductor; 221. Metal heat transfer plate; 23. Circuit board; 24. Cooling fan; 25. Heat dissipation holes; 26. Heat sink;

[0032] 3. Auxiliary fan blade assembly; 30. Annular plate; 31. Blade assembly; 32. Thin blade.

Detailed Implementation Methods

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figure 1-9As shown, this utility model includes a cooling ceiling fan, comprising a ceiling fan body 1 and a cooling mechanism 2 disposed at the bottom of the ceiling fan body 1. The ceiling fan body 1 includes an external rotor motor 10, a main fan blade assembly 11, and a hanging assembly 12. The external rotor motor 10 includes a rotor assembly 100 and a stator assembly 101. One end of the hanging assembly 12 is connected to the stator assembly 101, and the other end is connected to the ceiling. The main fan blade assembly 11 is connected to the rotor assembly 100. The ceiling fan body 1 also includes an auxiliary fan blade assembly 3 for disturbing the external airflow of the cooling mechanism 2 so that the air cooled by the cooling mechanism 2 can be circulated throughout the room and for preventing the accumulation of condensate on the cooling mechanism 2. The auxiliary fan blade assembly 3 is connected to the rotor assembly 100.

[0035] Traditional ceiling fans have a cooling unit 2 installed directly at the bottom. However, the airflow directly below the fan is weak, causing the cooled air to tend to accumulate and sink, hindering whole-room circulation. In this application, an auxiliary fan blade assembly 3 directionally disturbs the cooling air, preventing it from sinking and achieving uniform cooling throughout the room. Furthermore, because the cooling unit 2 operates at a low temperature, moisture in the air can easily condense on it over time, leading to a buildup of condensate. This not only reduces cooling efficiency but also poses risks of electrical leakage and structural corrosion. The auxiliary fan blade assembly 3 enhances airflow in the cooling unit 2 area, causing the liquefied water on the unit to evaporate quickly. This prevents condensate from dripping and affecting operation, and also prevents condensate from corroding the cooling unit 2, extending its service life.

[0036] It should be noted that the use of the ceiling fan body 1 in this application is conventional technology in the field, and therefore will not be described in detail here.

[0037] like Figures 4 to 7 As shown, as a further embodiment, the refrigeration mechanism 2 includes a housing 20 connected to the bottom of the stator assembly 101, a connecting cover 21 connected to the housing 20, a refrigeration component 22, and a circuit board 23 electrically connected to the refrigeration component 22. A cavity 200 is formed between the housing 20 and the connecting cover 21. The circuit board 23 is disposed in the cavity 200 and used to control the refrigeration component 22. The refrigeration component 22 is disposed at the bottom of the connecting cover 21 to reduce the air temperature around the connecting cover 21. In this application, by placing the refrigeration component 22 at the bottom of the connecting cover 21, the contact area with air can be increased, thereby improving the refrigeration efficiency.

[0038] like Figures 4 to 7As shown, as a further embodiment, the cooling component 22 includes a cooling semiconductor 220 disposed in the connecting cover 21 and a metal cooling plate 221 disposed at the bottom of the connecting cover 21 and in close contact with the cooling semiconductor 220. The metal cooling plate 221 is used to reduce its own temperature and cool the surrounding air through heat conduction. It should be noted that the cooling method using the cooling semiconductor 220 is a conventional technique in the art, and therefore will not be described in detail in this embodiment. By setting the metal cooling plate 221 to contact the cooling semiconductor 220, the conversion efficiency can be improved, and the cooling effect is faster compared to the cooling semiconductor 220 directly contacting the air. Furthermore, the metal cooling plate 221 is made of stainless steel to prevent corrosion. It should be noted that the metal cooling plate 221 can also be made of iron or copper, etc.

[0039] like Figures 4 to 7 As shown, as a further embodiment, since the circuit board 23 and the back of the cooling semiconductor 220 generate heat during operation, the cavity 200 is also provided with a cooling fan 24 for dissipating heat from the circuit board 23 and the back of the cooling semiconductor 220. The housing 20 has a plurality of heat dissipation holes 25 formed on it. To further improve the heat dissipation effect, the cavity 200 is also provided with a heat sink 26, the bottom of which abuts against the back of the cooling semiconductor 220, and the circuit board 23 is mounted on the heat sink 26.

[0040] like Figure 8 , Figure 9 As shown, as a further embodiment, the auxiliary fan blade assembly 3 includes an annular plate 30 connected to the lower part of the rotor assembly 100. The auxiliary fan blade assembly 3 also includes a blade group 31, which is composed of several thin blades 32 evenly spaced around the outer edge of the annular plate 30. The cross-section of the thin blades 32 is arc-shaped. There are two sets of blade groups 31, which are respectively distributed on the upper and lower sides of the annular plate 30. The refrigeration mechanism 2 is located in the blade group 31 on the lower side of the annular plate 30, and the lower part of the rotor assembly 100 is located in the blade group 31 on the upper side of the annular plate 30. In this embodiment, by setting two sets of blade groups 31, the blade group 31 on the upper side of the annular plate 30 can dissipate heat for the rotor assembly 100 and enhance air circulation in this area, while the blade group 31 on the lower side of the annular plate 30 can disturb the airflow in this area, so that the cold air cooled by the refrigeration mechanism 2 can circulate throughout the room. In addition, the blade group 31 on the lower side of the annular plate 30 extends downward beyond the bottom of the refrigeration mechanism 2. This further promotes air circulation, allowing air to continuously flow through the refrigeration unit 2, thus achieving circulation.

Claims

1. A cooling ceiling fan, comprising a ceiling fan body (1) and a cooling mechanism (2) disposed at the bottom of the ceiling fan body (1), wherein the ceiling fan body (1) comprises an external rotor motor (10), a main fan blade assembly (11), and a hanging assembly (12), the external rotor motor (10) comprising a rotor assembly (100) and a stator assembly (101), one end of the hanging assembly (12) being connected to the stator assembly (101) and the other end being connected to the ceiling, and the main fan blade assembly (11) being connected to the rotor assembly (100), characterized in that... The ceiling fan body (1) also includes an auxiliary fan blade assembly (3) for disturbing the external airflow of the cooling mechanism (2) so that the air cooled by the cooling mechanism (2) is circulated throughout the house and to prevent condensation from accumulating on the cooling mechanism (2), the auxiliary fan blade assembly (3) being connected to the rotor assembly (100).

2. A cooling ceiling fan according to claim 1, characterized in that... The refrigeration mechanism (2) includes a housing (20) connected to the bottom of the stator assembly (101), a connecting cover (21) connected to the housing (20), a refrigeration component (22), and a circuit board (23) electrically connected to the refrigeration component (22); A cavity (200) is formed between the housing (20) and the connecting cover (21), and the circuit board (23) is disposed in the cavity (200) and used to control the cooling component (22); The cooling component (22) is located at the bottom of the connecting cover (21) and is used to reduce the air temperature around the connecting cover (21).

3. A cooling ceiling fan according to claim 2, characterized in that... The cooling assembly (22) includes a cooling semiconductor (220) disposed in the connecting cover (21) and a metal cooling plate (221) disposed at the bottom of the connecting cover (21) and attached to the cooling semiconductor (220). The metal cooling plate (221) is used to reduce its own temperature and cool the surrounding air by heat conduction.

4. A cooling ceiling fan according to claim 2, characterized in that... The cavity (200) is provided with a cooling fan (24) for dissipating heat from the back of the circuit board (23) and the cooling semiconductor (220), and the housing (20) is formed with a plurality of heat dissipation holes (25) for heat dissipation.

5. A cooling ceiling fan according to claim 3, characterized in that... The metal cooling plate (221) is made of stainless steel.

6. A cooling ceiling fan according to claim 4, characterized in that... The cavity (200) is provided with a heat sink (26), the bottom of which abuts against the back of the cooling semiconductor (220), and the circuit board (23) is mounted on the heat sink (26).

7. A cooling ceiling fan according to any one of claims 1 to 6, characterized in that... The auxiliary fan blade assembly (3) includes an annular plate (30) connected to the lower part of the rotor assembly (100). The auxiliary fan blade assembly (3) also includes a blade group (31). The blade group (31) is composed of several thin blades (32) that are equally spaced and distributed around the outer edge of the annular plate (30). The cross-section of the thin blades (32) is arc-shaped.

8. A cooling ceiling fan according to claim 7, characterized in that... The blade assembly (31) is provided in two groups, and the two groups of blade assemblies (31) are respectively distributed on the upper and lower sides of the annular plate (30).

9. A cooling ceiling fan according to claim 8, characterized in that... The refrigeration mechanism (2) is located in the blade group (31) on the lower side of the annular plate (30), and the lower part of the rotor assembly (100) is located in the blade group (31) on the upper side of the annular plate (30).

10. A cooling ceiling fan according to claim 9, characterized in that... The blade assembly (31) on the lower side of the annular plate (30) extends downward beyond the bottom of the refrigeration mechanism (2).