Electric infrared drying device

By using the clamping structure and rotating blower design of the electric infrared drying equipment, the problems of low drying efficiency and bristle frizz in cosmetic brushes are solved, achieving a highly efficient and uniform drying effect.

WO2026107629A1PCT designated stage Publication Date: 2026-05-28SHEN SHIZHENG
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHEN SHIZHENG
Filing Date
2024-11-19
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing cosmetic brush drying equipment suffers from low drying efficiency, long drying time, and is prone to causing brush bristles to fray.

Method used

An electric infrared drying device is used. The brush is fixed by a clamping structure, and a DC fan and infrared heating element are used in conjunction with a rotating blower to form a uniform hot airflow to dry the brush head and prevent the bristles from swelling.

Benefits of technology

It improves drying efficiency, avoids brush bristle frizz, ensures neat brush bristles, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024132888_28052026_PF_FP_ABST
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Abstract

An electric infrared drying device, comprising a brush, a housing and a rechargeable battery, wherein the housing consists of a top cover (2) and a shell (1) which are vertically snap-fitted and fixed together; one end of a brush handle of the brush is inserted into a clamping sleeve (7), the brush handle is held by means of a rubber sleeve (8) and a protruding ring (9) on the inner side wall of the rubber sleeve (8), and the top cover (2) is then snap-fitted with the shell (1), so that a brush head portion of the brush enters the opening of a blowing cover (19); air is drawn from an air inlet in by means of a direct-current fan (12), is heated by means of an infrared heating member (14), then passes through an air concentration cover (15), a first air passage hole (18) and a second air passage hole (21) and enters an air converging chamber (20), and is then blown out through a plurality of groups of downwardly inclined air blowing holes (22) onto the brush head portion of the brush, so as to dry the brush head portion by means of blowing hot air; and while blowing air, a motor (17) drives the blowing cover (19) to rotate. In this way, the effect of drying by blowing hot air is improved and more uniform, excess hot air is discharged through an air outlet, the blowing efficiency is high, and the brush head portion of the brush remains sleek after drying so as to prevent bristles from becoming frizzy.
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Description

Electric infrared drying equipment Technical Field

[0001] This utility model relates to the field of cosmetic brush technology, and in particular to an electric infrared drying device. Background Technology

[0002] Makeup brushes are an essential tool for daily makeup application, especially for women. After applying makeup, brushes usually need to be washed and dried. However, the drying effect is limited by the environment; they often cannot be dried in time, or excessive sunlight can damage the bristles, affecting future use. Existing makeup brush drying racks typically use a low-power electric heating element and a low-power fan for blowing and drying. Their internal structure is flawed, resulting in slow airflow. Furthermore, the low power of the heating element and fan leads to long drying times and low drying efficiency.

[0003] To address this, an improved technology proposes a cosmetic brush drying and sterilization device, comprising an upper shell and a lower shell that are fixed to each other by snap-fit ​​connection, a silicone pad fixed to the bottom of the lower shell, a DC fan installed inside the lower shell, a ceramic heating element located directly above the DC fan, a control button installed on the inner side of the front of the lower shell, and a cosmetic brush fixing bracket located inside the upper shell. The upper shell has an air outlet at the top center, and the lower shell has an air inlet at the bottom center. By increasing the size of the air inlet and outlet, and controlling the ceramic heating element and DC fan to work in conjunction with the air inlet and outlet via the button, the drying efficiency is improved.

[0004] However, when the above-mentioned improved technology is used, the air blown by the DC fan is directly blown on the end of the brush bristles away from the handle, causing the bristles to swell and become fluffy, which affects subsequent use. Therefore, it is necessary to further improve the drying equipment used for cosmetic brushes. Technical issues

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric infrared drying device. Technical solutions

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an electric infrared drying device, including a brush, a shell, and a rechargeable battery. The shell consists of a top cover and a housing that are fixed together by interlocking. The inner wall of the top cover is provided with a clamping structure for holding the brush handle. The rechargeable battery is disposed on the lower inner wall of the housing. An air inlet is disposed on the outer wall of the housing near the bottom, and an air inlet mesh is disposed on the inner wall of the air inlet. An air outlet is disposed on the outer wall of the housing near the top, and an air outlet mesh is disposed on the inner wall of the air outlet. A silicone pad for anti-slip during placement is fixedly connected to the bottom of the housing. A switch is disposed on the front wall of the housing. Multiple sets of support pillars are fixedly connected to the lower inner wall of the housing, surrounding the rechargeable battery. A DC fan is fixedly connected to the upper end of each set of support pillars. The inner wall of the housing, located above the DC fan, has a first step and a second step arranged sequentially from bottom to top. An infrared heating element is fixedly connected to the inner wall of the first step via a bracket, and a wind-gathering hood is fixedly connected to the inner wall of the second step. A blowing hood is rotatably connected to the upper wall of the wind-gathering hood via a rotary drive structure. Both the wind-gathering hood and the blowing hood are cylindrical with one end open and opposite opening directions. The upper wall of the wind-gathering hood, located outside the rotary drive structure, has multiple sets of first air passage holes. An air-gathering cavity is provided between the outer wall of the blowing hood and the inner wall of the opening. A second air passage hole communicating with the air-gathering cavity is provided on the lower wall of the blowing hood. Multiple sets of blowing holes are provided on the inner wall of the opening of the blowing hood, allowing the air-gathering cavity to communicate with the interior of the opening. A sealing structure for sealing is provided between the blowing hood and the inner wall of the housing.

[0007] As a further description of the above technical solution:

[0008] The clamping structure includes a clamping sleeve and a rubber sleeve. The clamping sleeve is fixedly connected to the upper wall of the inner sidewall of the top cover and is located in the radial center position. The rubber sleeve is fixedly connected to the inner sidewall of the clamping sleeve. The inner sidewall of the rubber sleeve and near the lower end are provided with a protruding ring that protrudes towards the inside of the rubber sleeve.

[0009] As a further description of the above technical solution:

[0010] The rotary drive structure includes a heat insulation cover and a motor. The heat insulation cover is fixedly connected to the upper inner wall of the wind-gathering cover and is located in the center. The motor is fixedly connected inside the heat insulation cover. The end of the motor's protruding shaft passes through the upper wall of the wind-gathering cover and extends to the top of the wind-gathering cover. The blowing cover is fixedly connected to the end of the motor that extends to the top of the wind-gathering cover.

[0011] As a further description of the above technical solution:

[0012] The sealing structure includes two sets of sealing rings, which are arranged vertically and sequentially fitted onto the inner wall of the housing. The inner walls of both sets of sealing rings are slidably connected to the outer circumferential wall of the blower hood.

[0013] As a further description of the above technical solution:

[0014] All of the aforementioned air holes are arranged such that one end facing the axis of the air blower is lower than the other end, and the angle between the axis of the air hole and the lower surface of the air blower is seventy degrees.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the air inlet is provided with filter cotton that abuts against the air inlet mesh.

[0017] As a further description of the above technical solution:

[0018] The bracket has multiple sets of vertically continuous perforated holes inside. Beneficial effects

[0019] This utility model has the following beneficial effects:

[0020] Compared with existing technologies, this electric infrared drying equipment inserts one end of the brush handle into the clamping sleeve, where the brush handle is held by the rubber sleeve and the convex ring on the inner wall of the rubber sleeve. Then, the top cover is fastened to the housing, allowing the brush head to enter the opening of the blower hood. A DC fan draws in air from the air inlet, heats it through the infrared heating element, and then flows through the air concentrator hood, the first air passage, and the second air passage into the air collecting chamber. The air is then blown onto the brush head through multiple sets of downward-sloping blowers, drying the brush head with hot air. While blowing air, the motor drives the blower hood to rotate, making the hot air drying effect more uniform. Excess hot air is discharged through the air outlet, resulting in high blowing efficiency. After drying, the brush head remains in place, avoiding frizz. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of the electric infrared drying equipment proposed in this utility model;

[0022] Figure 2 is a partial cross-sectional view of the internal structure of the top cover of the electric infrared drying equipment proposed in this utility model.

[0023] Figure 3 is a partial cross-sectional view of the internal structure of the shell of the electric infrared drying equipment proposed in this utility model.

[0024] Figure 4 is a partial enlarged view of point A in Figure 3 of the electric infrared drying device proposed in this utility model;

[0025] Figure 5 is a partial enlarged view of point B in Figure 3 of the electric infrared drying device proposed in this utility model.

[0026] Legend:

[0027] 1. Housing; 2. Top cover; 3. Air inlet grille; 4. Air outlet grille; 5. Silicone pad; 6. Switch; 7. Clamping sleeve; 8. Rubber sleeve; 9. Convex ring; 10. Filter cotton; 11. Support column; 12. DC fan; 13. Bracket; 14. Infrared heating element; 15. Air concentrator cover; 16. Heat insulation cover; 17. Motor; 18. First air passage; 19. Air blower cover; 20. Air collection chamber; 21. Second air passage; 22. Air blower hole; 23. Sealing ring. The best embodiment of the present invention

[0028] 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.

[0029] Referring to Figures 1 to 5, the electric infrared drying device provided by this utility model includes a brush, a shell, and a rechargeable battery. The shell is composed of a top cover 2 and a housing 1 that are fixed together by snapping on top of each other. The rechargeable battery is disposed on the lower inner wall of the housing 1.

[0030] As shown in Figure 2, the inner wall of the top cover 2 is provided with a clamping structure for clamping the brush handle. The clamping structure includes a clamping sleeve 7 and a rubber sleeve 8. The clamping sleeve 7 is fixedly connected to the upper wall of the inner wall of the top cover 2 and is located in the radial center position. The rubber sleeve 8 is fixedly connected to the inner wall of the clamping sleeve 7. The inner wall of the rubber sleeve 8 and near the lower end are provided with a protruding ring 9 that protrudes towards the inside of the rubber sleeve 8. When in use, insert one end of the brush handle into the clamping sleeve 7. The brush is clamped by the compression of the rubber sleeve 8 and the protruding ring 9. After drying, the brush can be pulled outward to separate the brush from the clamping sleeve 7.

[0031] As shown in Figures 1, 3, and 4, in order to allow air to enter and exit during hot air drying, an air inlet is provided on the outer wall of the housing 1 near the bottom. An air inlet mesh 3 is provided on the inner side wall of the air inlet, and a filter cotton 10 is provided on the inner side wall of the air inlet to abut against the air inlet mesh 3. An air outlet is provided on the outer wall of the housing 1 near the top, and an air outlet mesh 4 is provided on the inner side wall of the air outlet. When the DC fan 12 is working, it draws in air from the air inlet, blows air onto the brush head, and then discharges the air through the air outlet. The filter cotton 10 is used to filter the air and improve the cleanliness of the brush head.

[0032] As shown in Figures 1 and 3, in order to prevent the device from sliding or shifting when placed on the desktop, a silicone pad 5 is fixedly connected to the bottom of the housing 1 for anti-slip purposes. The silicone pad 5 can play an anti-slip role.

[0033] As shown in Figures 1 and 3, in order to form a heat source for drying, a switch 6 is provided on the front wall of the housing 1. Multiple sets of support columns 11 are fixedly connected to the lower inner wall of the housing 1 and located around the rechargeable battery. A DC fan 12 is fixedly connected to the upper end of the multiple sets of support columns 11. A first step and a second step are arranged sequentially from bottom to top on the inner wall of the housing 1 and above the DC fan 12. An infrared heating element 14 is fixedly connected to the inner wall of the first step through a bracket 13. Multiple sets of vertically penetrating hollow holes are provided inside the bracket 13. The hollow holes on the bracket 13 are for the DC fan 12 to blow air. After the DC fan 12 draws in air from the air inlet, it is heated by the infrared heating element 14 to generate hot air.

[0034] As shown in Figure 3, in order to improve the drying effect, a concentrator 15 is fixedly connected to the inner wall of the second step. A blower 19 is rotatably connected to the upper wall of the concentrator 15 through a rotary drive structure. Both the concentrator 15 and the blower 19 are cylindrical with one end open and opposite opening directions. The rotary drive structure includes a heat insulation cover 16 and a motor 17. The heat insulation cover 16 is fixedly connected to the upper inner wall of the concentrator 15 and is located in the center. The motor 17 is fixedly connected inside the heat insulation cover 16. The end of the motor 17 extends through the upper wall of the concentrator 15 and extends above the concentrator 15. The blower 19 is fixedly connected to the end of the motor 17 that extends above the concentrator 15. When the motor 17 rotates, it can drive the blower 19 to rotate. When the blower 19 rotates, it can drive multiple sets of air holes 22 to rotate and blow air along the axis of the brush tip, achieving a better drying effect.

[0035] As shown in Figure 3, in order to allow hot air to blow onto the brush head without causing the brush head to frizz, the upper wall of the air shroud 15, located outside the rotary drive structure, is provided with multiple sets of first air passage holes 18. An air collection cavity 20 is provided between the outer wall of the air shroud 19 and the inner side wall of the opening. The lower wall of the air shroud 19 is provided with a second air passage hole 21 that communicates with the air collection cavity 20. The inner side wall of the opening of the air shroud 19 is provided with multiple sets of air holes 22 that communicate with the air collection cavity 20 and the interior of the opening. All sets of air holes 22 are arranged such that one end facing the axis of the air shroud 19 is lower than the other end, and the angle between the axis of the air hole 22 and the lower surface of the air shroud 19 is 70 degrees. Through the inclined arrangement of the air holes 22, a downward inclined hot airflow can be formed, which can prevent the brush head bristles from becoming messy after blowing.

[0036] As shown in Figure 5, in order to increase the pressure of the hot air blown out of the air blowing hole 22, a sealing structure for sealing is provided between the air blowing hood 19 and the inner wall of the housing 1. The sealing structure includes two sets of sealing rings 23, which are arranged vertically and sequentially on the inner wall of the housing 1. The inner walls of the two sets of sealing rings 23 are slidably connected to the outer circumference of the air blowing hood 19. The sealing rings 23 maintain the air blowing hood 19 and the inner wall of the housing 1 in a state of both rotational connection and sealing, so that the hot air can smoothly enter the air collecting cavity 20.

[0037] Working principle: When in use, insert one end of the brush handle into the clamping sleeve 7. The brush is clamped by the pressure of the rubber sleeve 8 and the convex ring 9. After drying, pull the brush outward to separate the brush from the clamping sleeve 7. Then fasten the top cover 2 to the housing 1. At this time, the brush head extends into the opening of the blower cover 19. After the DC fan 12 draws in air from the air inlet, it is heated by the infrared heating element 14 to generate hot air. The hot air enters the air collection chamber 20 through the first air passage 18 and the second air passage 21, and then blows onto the brush head through multiple sets of blower holes 22. When the motor 17 rotates, it can drive the blower cover 19 to rotate. When the blower cover 19 rotates, it can drive the multiple sets of blower holes 22 to rotate and blow air along the axis of the brush head, achieving a better drying effect. The inclined setting of the blower holes 22 can form a downward inclined hot airflow, which can prevent the brush bristles on the brush head from becoming messy after drying.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric infrared drying device, characterized in that: The device includes a brush, a housing, and a rechargeable battery. The housing consists of a top cover (2) and a shell (1) that are fixed together by snapping on top of each other. The inner wall of the top cover (2) is provided with a clamping structure for holding the brush handle. The rechargeable battery is located on the lower inner wall of the shell (1). An air inlet is located on the outer wall of the shell (1) near the bottom. An air inlet mesh (3) is located on the inner wall of the air inlet. An air outlet is located on the outer wall of the shell (1) near the top. An air outlet mesh (4) is located on the inner wall of the air outlet. A silicone pad (5) for anti-slip during placement is fixedly connected to the bottom of the shell (1). A switch (6) is located on the front wall of the shell (1). Multiple sets of support pillars (11) are fixedly connected to the lower inner wall of the shell (1) around the rechargeable battery. A DC fan (12) is fixedly connected to the upper end of the multiple sets of support pillars (11). A series of items are arranged on the inner wall of the shell (1) from top to bottom above the DC fan (12). The first step and the second step are respectively. The inner wall of the first step is fixedly connected to an infrared heating element (14) by a bracket (13). The inner wall of the second step is fixedly connected to a wind-gathering hood (15). The upper wall of the wind-gathering hood (15) is rotatably connected to a blower hood (19) by a rotary drive structure. The wind-gathering hood (15) and the blower hood (19) are both cylindrical with one end open and opposite opening directions. The upper wall of the wind-gathering hood (15) and located outside the rotary drive structure are provided with multiple sets of first air passage holes (18). The outer wall of the blower hood (19) and the inner wall of the opening are provided with an air-gathering cavity (20). The lower wall of the blower hood (19) is provided with a second air passage hole (21) that communicates with the air-gathering cavity (20). The inner wall of the opening of the blower hood (19) is provided with multiple sets of blower holes (22) that allow the air-gathering cavity (20) to communicate with the inside of the opening. The blower hood (19) and the inner wall of the shell (1) are provided with a sealing structure for sealing.

2. The electric infrared drying equipment according to claim 1, characterized in that: The clamping structure includes a clamping sleeve (7) and a rubber sleeve (8). The clamping sleeve (7) is fixedly connected to the upper wall of the inner side wall of the top cover (2) and is located in the radial center position. The rubber sleeve (8) is fixedly connected to the inner side wall of the clamping sleeve (7). The inner side wall of the rubber sleeve (8) and near the lower end are provided with a protruding ring (9) that protrudes towards the inside of the rubber sleeve (8).

3. The electric infrared drying equipment according to claim 2, characterized in that: The rotary drive structure includes a heat shield (16) and a motor (17). The heat shield (16) is fixedly connected to the inner upper wall of the wind-gathering hood (15) and located in the center. The motor (17) is fixedly connected inside the heat shield (16). The end of the motor (17) extends through the upper wall of the wind-gathering hood (15) and extends above the wind-gathering hood (15). The blower hood (19) is fixedly connected to one end of the motor (17) that extends above the wind-gathering hood (15).

4. The electric infrared drying equipment according to claim 3, characterized in that: The sealing structure includes two sets of sealing rings (23), which are arranged vertically and sequentially fitted on the inner sidewall of the housing (1). The inner sidewalls of the two sets of sealing rings (23) are slidably connected to the outer circumferential wall of the blower hood (19).

5. The electric infrared drying equipment according to claim 4, characterized in that: The multiple sets of air holes (22) are all arranged such that one end facing the axis of the air blower (19) is lower than the other end, and the angle between the axis of the air hole (22) and the lower surface of the air blower (19) is seventy degrees.

6. The electric infrared drying equipment according to claim 5, characterized in that: The inner wall of the air inlet is provided with filter cotton (10) that abuts against the air inlet mesh (3).

7. The electric infrared drying equipment according to claim 6, characterized in that: The bracket (13) has multiple sets of vertically continuous hollow holes inside.

Citation Information

Patent Citations

  • Drying device for beauty makeup nursing materials

    CN116499222A

  • Drying barrel

    CN210215936U

  • Cosmetic brush drying and sterilizing device

    CN214148769U

  • A cosmetic tool drying device

    CN215216966U

  • Drying and sterilizing device for personal care products

    CN217187087U