Portable midge expelling device

The portable design and ultrasonic midge repellent device utilizes an ultrasonic transmitter to generate high-frequency sound waves to repel midges. Protective components and a ventilation system ensure the device's portability and reliability, solving the problem of traditional insect repellent devices being bulky and inconvenient to carry.

CN224140001UActive Publication Date: 2026-04-21SHENZHEN ZHONGYIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGYIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing insect repellent devices are bulky, inconvenient to carry, and difficult to effectively repel midges.

Method used

It features a portable design with a built-in ultrasonic transmitter that generates high-frequency sound waves above 20kHz. Combined with a protective cover, ventilation components, and lithium battery power, it prevents impurities from entering through a protective mesh and filter, and uses a servo motor to control the airflow.

Benefits of technology

It effectively eliminates midges, the device is portable, has good ventilation, and reduces the failure rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224140001U_ABST
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Abstract

The utility model discloses a portable midge expelling device, and relates to the technical field of insect expelling devices.The portable midge expelling device comprises a shell assembly and a cover plate assembly mounted on the shell assembly, the shell assembly comprises a shell body, the inner wall of the shell body is fixedly connected with a mounting base, and the outer wall of the mounting base is fixedly connected with an ultrasonic transmitter; a partition plate is fixedly connected to the inner wall of the shell body, a lithium battery electrically connected to the ultrasonic transmitter is fixedly connected to the outer wall of one side of the partition plate, ventilation openings are formed in the outer walls of the two sides of the shell body, and protection assemblies are arranged on the inner walls of the two ventilation openings. The ultrasonic transmitter is arranged in the shell, the ultrasonic transmitter generates high-frequency sound waves, the sound waves are harmless to the human body, but discomfort or interference is generated on the midges, so that the midges are forced to leave, meanwhile, the matching size between the shell assembly and the cover plate assembly is relatively small, and the portability of the expelling device is improved.
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Description

Technical Field

[0001] This application relates to the field of insect repellent devices, and in particular to a portable midge repellent device. Background Technology

[0002] Midges are small insects belonging to the family Midgeidae in the order Diptera, with approximately 90 genera known worldwide. Due to their small size and tendency to bite, they are commonly called "midges" or "black flies" because the adults are mostly black or dark brown. Midges are about 1 mm long, with a dark body color, mostly black or brown; the anterior side of the mesothoracic scutellum is concave, the dorsal side of the thorax is slightly convex, but they never hunch over; the wings are short and broad, usually with light and dark spots, and when at rest, the wings overlap on the abdomen and back; the body hairs are sparse.

[0003] Near grassy areas, you are often bitten by midges. You don't feel anything when they bite, but they are incredibly itchy afterward and it's hard to avoid them. Traditional insect repellent devices mostly use insect lamps to repel mosquitoes, but these devices are relatively large and inconvenient to carry. Utility Model Content

[0004] To address the issue of existing insect repellent devices being bulky and inconvenient to carry, this application provides a portable midge repellent device.

[0005] This application provides a portable midge repellent device, including a housing assembly and a cover assembly mounted on the housing assembly. The housing assembly includes a housing body, and a mounting base is fixedly connected to the inner wall of the housing body. An ultrasonic transmitter is fixedly connected to the outer wall of the mounting base. A partition is fixedly connected to the inner wall of the housing body, and a lithium battery electrically connected to the ultrasonic transmitter is fixedly connected to one side of the outer wall of the partition. Ventilation openings are provided on both sides of the outer wall of the housing body, and protective components are provided on the inner walls of both ventilation openings.

[0006] The above structure incorporates an ultrasonic transmitter built into the outer shell assembly. The high-frequency sound waves generated by the ultrasonic transmitter are harmless to humans but can cause discomfort or interference to midges, thus forcing them to leave. The frequency of ultrasonic waves is typically above 20kHz, which is outside the range of human hearing but is sufficient to affect insects such as midges. At the same time, the cooperation between the outer shell assembly and the cover assembly facilitates the portability of the repelling device. The lithium battery provides power to the ultrasonic transmitter, and the protective assembly facilitates ventilation for the outer shell body.

[0007] The cover plate assembly includes a protective cover plate fixedly connected to the outer shell body, and a plurality of equally spaced circular through holes are provided on one outer wall of the protective cover plate.

[0008] With the above structure, the through holes on the protective cover facilitate the transmission of sound waves.

[0009] A protective mesh cover is fixedly connected to one side of the outer wall of the protective cover, and the through hole is located inside the protective mesh cover.

[0010] With the above structure, the protective mesh cover can be used to protect the through holes and prevent them from being blocked by impurities.

[0011] The protective component includes a ventilation box fixedly connected to the inner wall of the ventilation opening, and a filter screen is fixedly connected to the inner wall of the ventilation box.

[0012] With the above structure, the ventilation box facilitates ventilation for the outer casing, and the filter screen helps to prevent external impurities from entering the outer casing.

[0013] The inner wall of the ventilation box is fixedly connected to a mounting plate, and an air vent is opened on one side of the outer wall of the mounting plate. A fan is fixedly connected to the inner wall of the air vent.

[0014] With the above structure, the fan facilitates the acceleration of outside air entering the casing and the acceleration of air exiting the casing.

[0015] The ventilation box has a circular opening on the outer wall of the side away from the filter screen, and a baffle is rotatably connected to the inner wall of the circular opening.

[0016] With the above structure, the opening and closing of the circular opening can be easily controlled by a rotatable baffle, thereby facilitating the control of the air duct opening and closing of the ventilation box.

[0017] A chassis is fixedly connected to one side of the outer wall of the ventilation box, and a servo motor is fixedly connected to the inner wall of the chassis. The output shaft of the servo motor is fixedly connected to the rotating shaft of the baffle.

[0018] With the above structure, the baffle can be directly driven to rotate by a servo motor, and the air duct can be directly controlled when the baffle rotates 90 degrees.

[0019] An installation opening is provided on one side of the outer wall of the outer casing, and a charging connector electrically connected to the lithium battery is fixedly connected to the inner wall of the installation opening. A power button electrically connected to the lithium battery is fixedly connected to one side of the outer wall of the protective cover. Two symmetrically arranged hanging rings are fixedly connected to the top outer wall of the outer casing.

[0020] With the above structure, the charging connector facilitates charging of the lithium battery, and the power button facilitates control of the ultrasonic transmitter's start and stop.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] 1. This application improves the portability of the repelling device by setting an ultrasonic transmitter in the shell, which generates high-frequency sound waves that are harmless to the human body but cause discomfort or interference to midges, thereby forcing them to leave. At the same time, the fit between the shell assembly and the cover assembly is relatively small.

[0023] 2. This application provides two symmetrically arranged protective components within the housing body. The protective components facilitate improved ventilation of the housing body, thereby allowing heat generated during the operation of the ultrasonic transmitter to be dissipated. Simultaneously, the filter effectively prevents external impurities from entering the housing body, thereby reducing the failure rate of the removal device. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of this application;

[0025] Figure 2 This is a schematic diagram of the unfolded state of this application;

[0026] Figure 3 This is a cross-sectional schematic diagram of the protective components of this application;

[0027] Figure 4 This is a schematic diagram of the internal structure of the protective component in this application;

[0028] Figure 5 This is a schematic diagram of the chassis of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Housing assembly; 2. Cover assembly; 3. Charging connector; 4. Protective cover; 5. Through hole; 6. Protective mesh cover; 7. Power button; 8. Housing body; 9. Partition; 10. Lifting ring; 11. Mounting base; 12. Ultrasonic transmitter; 13. Protective component; 14. Lithium battery; 15. Ventilation box; 16. Filter screen; 17. Mounting plate; 18. Fan; 19. Chassis; 20. Baffle; 21. Servo motor. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0031] Please see Figure 1-3 A portable midge repellent device includes a housing assembly 1 and a cover assembly 2 mounted on the housing assembly 1. The housing assembly 1 includes a housing body 8, and a mounting base 11 is fixedly connected to the inner wall of the housing body 8. An ultrasonic transmitter 12 is fixedly connected to the outer wall of the mounting base 11. A partition 9 is fixedly connected to the inner wall of the housing body 8, and a lithium battery 14 electrically connected to the ultrasonic transmitter 12 is fixedly connected to one side of the outer wall of the partition 9. Ventilation openings are provided on both sides of the outer wall of the housing body 8, and protective components 13 are provided on the inner walls of both ventilation openings.

[0032] In use, an ultrasonic transmitter 12 is built into the housing assembly 1. The ultrasonic transmitter 12 generates high-frequency sound waves that are harmless to humans but can cause discomfort or interference to midges, thus forcing them to leave. The frequency of the ultrasonic waves is usually above 20kHz, which is outside the range of human hearing, but is sufficient to affect insects such as midges. At the same time, the cooperation between the housing assembly 1 and the cover assembly 2 facilitates the portability of the repelling device. The lithium battery 14 facilitates the power supply of the ultrasonic transmitter 12, and the protective assembly 13 facilitates ventilation of the housing body 8.

[0033] Reference Figure 2 The cover plate assembly 2 includes a protective cover plate 4 fixedly connected to the outer shell body 8, and a plurality of equally spaced circular through holes 5 are provided on one outer wall of the protective cover plate 4 to facilitate the transmission of sound waves through the through holes 5 on the protective cover plate 4.

[0034] Reference Figure 2 A protective mesh cover 6 is fixedly connected to one side of the outer wall of the protective cover plate 4. The through hole 5 is located inside the protective mesh cover 6. The protective mesh cover 6 is used to protect the through hole 5 and prevent the through hole 5 from being blocked by impurities.

[0035] Reference Figure 3-4 The protective component 13 includes a ventilation box 15 fixedly connected to the inner wall of the ventilation opening, and a filter screen 16 fixedly connected to the inner wall of the ventilation box 15. The ventilation box 15 facilitates ventilation for the outer shell body 8, and the filter screen 16 facilitates blocking external impurities from entering the outer shell.

[0036] Reference Figure 3 The inner wall of the ventilation box 15 is fixedly connected to the mounting plate 17, and an air vent is opened on one side of the outer wall of the mounting plate 17. A fan 18 is fixedly connected to the inner wall of the air vent. The fan 18 facilitates the acceleration of the entry of outside air into the outer shell and the acceleration of the exhaust of air in the outer shell.

[0037] Reference Figure 3-4 A circular opening is provided on the outer wall of the ventilation box 15 away from the filter screen 16, and a baffle 20 is rotatably connected to the inner wall of the circular opening. The opening and closing of the circular opening can be easily controlled by the rotatable baffle 20, thereby facilitating the control of the air duct of the ventilation box 15.

[0038] Reference Figure 5 A housing 19 is fixedly connected to one side of the outer wall of the ventilation box 15, and a servo motor 21 is fixedly connected to the inner wall of the housing 19. The output shaft of the servo motor 21 is fixedly connected to the rotation shaft of the baffle 20. The servo motor 21 can directly drive the baffle 20 to rotate. When the baffle 20 rotates 90 degrees, it directly controls the opening and closing of the air duct.

[0039] Reference Figure 1The outer wall of the outer casing 8 has an installation port, and the inner wall of the installation port is fixedly connected to a charging connector 3 that is electrically connected to the lithium battery 14. The outer wall of the protective cover 4 is fixedly connected to a power button 7 that is electrically connected to the lithium battery 14. The outer wall of the top of the outer casing 8 has two symmetrically arranged hanging rings 10. The setting of the charging connector 3 facilitates charging of the lithium battery 14, and the setting of the power button 7 facilitates control of the start and stop of the ultrasonic transmitter 12.

[0040] The implementation principle of this application is as follows: When in use, the repellent device is carried with you. When needed, press the power button 7 to directly start the ultrasonic transmitter 12 to generate high-frequency sound waves. These sound waves are harmless to the human body, but they will cause discomfort or interference to the midges, thus forcing them to leave. The ultrasonic transmitter 12 generates heat when it is working. In order to reduce the failure rate of the ultrasonic transmitter 12, two protective components 13 are used to dissipate heat from the ultrasonic transmitter 12. The fan 18 in the protective component 13 is started to accelerate the airflow in the outer shell 8, so as to facilitate the removal of the heat generated by the ultrasonic transmitter 12. The servo motor 21 in the chassis 19 directly drives the baffle 20 to rotate 90 degrees, thereby opening the air duct of the ventilation box 15.

[0041] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable black fly repelling device comprising a housing assembly (1) and a cover plate assembly (2) mounted on the housing assembly (1), characterized in that: The outer casing assembly (1) includes an outer casing body (8), and a mounting base (11) is fixedly connected to the inner wall of the outer casing body (8). An ultrasonic transmitter (12) is fixedly connected to the outer wall of the mounting base (11). A partition (9) is fixedly connected to the inner wall of the outer casing body (8), and a lithium battery (14) electrically connected to the ultrasonic transmitter (12) is fixedly connected to one side of the outer wall of the partition (9). Ventilation openings are provided on both sides of the outer walls of the outer casing body (8), and protective components (13) are provided on the inner walls of both ventilation openings.

2. The portable biting midge repellent device of claim 1, wherein: The cover plate assembly (2) includes a protective cover plate (4) fixedly connected to the outer shell body (8), and a plurality of equally spaced circular through holes (5) are provided on one side of the outer wall of the protective cover plate (4).

3. The portable biting midge repellent device of claim 2, wherein: A protective mesh cover (6) is fixedly connected to one side of the outer wall of the protective cover (4), and the through hole (5) is located inside the protective mesh cover (6).

4. The portable biting midge repellent device of claim 3, wherein: The protective component (13) includes a ventilation box (15) fixedly connected to the inner wall of the ventilation opening, and a filter screen (16) is fixedly connected to the inner wall of the ventilation box (15).

5. The portable biting midge repellent device of claim 4, wherein: The inner wall of the ventilation box (15) is fixedly connected to the mounting plate (17), and an air vent is opened on one side of the outer wall of the mounting plate (17), and a fan (18) is fixedly connected to the inner wall of the air vent.

6. The portable biting midge repellent device of claim 5, wherein: The ventilation box (15) has a circular opening on the outer wall of the side away from the filter (16), and a baffle (20) is rotatably connected to the inner wall of the circular opening.

7. The portable biting midge repellent device of claim 6, wherein: The ventilation box (15) is fixedly connected to a housing (19) on one side of its outer wall, and a servo motor (21) is fixedly connected to the inner wall of the housing (19). The output shaft of the servo motor (21) is fixedly connected to the rotating shaft of the baffle (20).

8. The portable biting midge repellent device of claim 7, wherein: The outer wall of the outer shell (8) has an installation opening, and the inner wall of the installation opening is fixedly connected to a charging connector (3) that is electrically connected to the lithium battery (14). The outer wall of the protective cover (4) is fixedly connected to a power button (7) that is electrically connected to the lithium battery (14). The outer wall of the top of the outer shell (8) is fixedly connected to two symmetrically arranged hanging rings (10).