Light and thin type plasma generating device and wearable equipment
By designing a thin and light plasma generator and using insulating adhesive encapsulation and fixing components for limiting, the problem of complex and thick structures in existing plasma devices has been solved. This achieves a thin and light design and a safe and reliable air purification effect, making it suitable for wearable devices.
Patent Information
- Application Number
- CN202520264325.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing plasma devices with dielectric barrier discharge structures are complex and thick, making them unsuitable for thin and light air sterilizers, and their assembly is difficult and their use is limited.
Design a thin and light plasma application: This refers to a thin and light plasma generator, including an insulating base plate and a dielectric barrier discharge unit, which is encapsulated with insulating glue, the high-voltage electrode is isolated from the insulating base plate, and the fixing components limit the position to ensure that the high-voltage electrode is waterproof and sealed, and to avoid leakage or short circuit.
It features a simple and lightweight design, easy assembly, safety and reliability, and is suitable for wearable devices, improving air purification efficiency.
Smart Images
Figure CN223772206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification technology, and in particular to a thin and light plasma generator and wearable device. Background Technology
[0002] Existing plasma devices employing dielectric barrier discharge structures are generally sheet-shaped, such as the flat-plate plasma generator disclosed in the applicant's prior application CN2024204256514. This device includes a frame with receiving slots on both opposite sides, each containing a dielectric barrier discharge unit. While these products utilize two dielectric barrier discharge units on each side simultaneously, resulting in high efficiency and good air purification and disinfection, their assembly structure is relatively complex, and their thickness is significant. This limits their applicability to smaller, thinner air purifiers. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a thin and light plasma generating device with a simple structure and easy assembly, as well as a wearable device with a thin and light plasma generating device.
[0004] This invention proposes a thin and light plasma generator, comprising an insulating shell 1 and a dielectric barrier discharge unit 2. The dielectric barrier discharge unit 2 includes a dielectric plate 21, a high-voltage electrode 22 and a low-voltage electrode 23 respectively fixed to two opposite sides of the dielectric plate 21. The insulating shell 1 includes an insulating base plate 11 and a enclosure 12 surrounding the insulating base plate 11, forming a receiving groove with the enclosure 12 and the insulating base plate 11. The dielectric barrier discharge unit 2 is disposed within the receiving groove, and there is a gap between the periphery of the dielectric barrier discharge unit 2 and the enclosure 12. In the first gap 51, the high-voltage electrode 22 abuts against the insulating base plate 11, while the low-voltage electrode 23 is exposed in the receiving groove. The size of the high-voltage electrode 22 is smaller than the size of the dielectric plate 21. A second gap 52 is located outside the high-voltage electrode 22 and between the dielectric plate 21 and the insulating base plate 11. The second gap 52 is connected to the first gap 51. Insulating glue 3 is disposed in the first gap 51 and the second gap 52 to fix the dielectric barrier discharge unit 2 in the receiving groove and to waterproof and seal the high-voltage electrode 22.
[0005] Preferably, the top surface of the insulating adhesive 3 within the first gap 51 is lower than the low-voltage electrode 23.
[0006] Preferably, the dielectric plate 21 is a plastic plate or a glass plate.
[0007] Preferably, the high-voltage electrode 22 and the low-voltage electrode 23 are respectively provided with a first terminal 221 and a second terminal 231; a set of through holes 121 are provided at intervals on one of the enclosures 12, and the first terminal 221 and the second terminal 231 extend out of the insulating shell 1 from one of the through holes 121 respectively.
[0008] Preferably, the top surface of the enclosure 12 is lower than the low-voltage electrode 23, or the top surface of the enclosure 12 is flush with the low-voltage electrode 23.
[0009] Preferably, the thin and light plasma generator further includes a fixing member that limits the dielectric barrier discharge unit 2 within the receiving groove.
[0010] Preferably, the fixing member includes a limiting plate 4 detachably connected to the insulating shell 1, the limiting plate 4 is pressed against one end of the dielectric plate 21, and part or all of the low-voltage electrode 23 is exposed relative to the limiting plate 4.
[0011] Preferably, the limiting plate 4 has a buckle 41, and a corresponding fastening position is provided on the enclosure 12, and the buckle 41 is engaged with the fastening position.
[0012] Preferably, the fixing member includes a limiting sleeve that is sleeved on the insulating shell 1 and pressed against one end of the dielectric plate 21, and part or all of the low-voltage electrode 23 is exposed relative to the limiting sleeve.
[0013] Preferably, the fastener includes an elastic element disposed on the inner sidewall of one of the enclosures 12, and one side of the medium plate 21 elastically abuts against the elastic element.
[0014] This utility model also discloses a wearable device having the thin and light plasma generator described above.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The lightweight plasma generator disclosed in this utility model has a simple overall structure and a lightweight design with a small overall thickness. Furthermore, the high-voltage electrode is waterproofed and sealed by using insulating glue for encapsulation. This not only simplifies assembly but also prevents leakage or short circuits in the high-voltage electrode, ensuring safe and reliable use. This provides feasible conditions for implementing the plasma generator in wearable devices. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a plasma generator.
[0018] Figure 2 This is a schematic diagram of an explosion of a plasma generator.
[0019] Figure 3 This is a schematic diagram of an explosion of a dielectric barrier discharge unit.
[0020] Figure 4 This is a top view of the plasma generator.
[0021] Figure 5 yes Figure 4 A schematic diagram of the AA cross-sectional structure.
[0022] Figure 6 yes Figure 5 A schematic diagram of the structure without insulating adhesive. Detailed Implementation
[0023] To further illustrate the technical means and effects adopted by this application to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form. Example
[0024] Combination Figures 1-6 As shown, this utility model discloses a thin and light plasma generating device, including an insulating shell 1 and a dielectric barrier discharge unit 2; the insulating shell 1 includes an insulating base plate 11 and a barrier 12 surrounding the insulating base plate 11, and the barrier 12 and the insulating base plate 11 enclose a receiving groove for assembling the dielectric barrier discharge unit 2; the dielectric barrier discharge unit 2 is encapsulated and disposed in the receiving groove of the insulating shell 1, and the overall thickness is thin and light.
[0025] The dielectric barrier discharge unit 2 includes a dielectric plate 21, a high-voltage electrode 22, and a low-voltage electrode 23, with the high-voltage electrode 22 and the low-voltage electrode 23 respectively fixed on two opposite sides of the dielectric plate 21. The dielectric plate 21 is typically made of non-conductive plastic, glass, or similar materials.
[0026] The high-voltage electrode 22 is connected to the high-frequency pulsed high-voltage electricity of the external power supply unit, and the low-voltage electrode 23 is connected to the low-voltage electricity of the external power supply unit or grounded, forming a high-voltage electric field between the high-voltage electrode 22 and the low-voltage electrode 23.
[0027] To facilitate the connection of the dielectric barrier discharge unit 2 to an external power supply unit, the high-voltage electrode 22 and the low-voltage electrode 23 are respectively provided with a first terminal 221 and a second terminal 231.
[0028] A set of through holes 121 are provided at intervals on one of the enclosures 12. The first terminal 221 and the second terminal 231 extend out of the insulating shell 1 from one of the through holes 121, respectively. Typically, the first terminal 221 is connected to the high-frequency pulse high-voltage electricity output by the power supply unit, and the second terminal 231 is grounded.
[0029] The size of the high-voltage electrode 22 is smaller than that of the dielectric plate 21. When the dielectric barrier discharge unit 2 is placed in the receiving groove of the insulating shell 1, there is a first gap 51 between the periphery of the dielectric barrier discharge unit 2 and the enclosure 12; the high-voltage electrode 22 abuts against the insulating base plate 11, and the insulating base plate 11 isolates the high-voltage electrode 22, improving the safety of the plasma generator when used in wearable devices; the low-voltage electrode 23 is exposed in the receiving groove, which facilitates the rapid overflow of ions formed by ionization of air from the low-voltage electrode 23; a second gap 52 is located outside the high-voltage electrode 22 and between the dielectric plate 21 and the insulating base plate 11, and the second gap 52 is connected to the first gap 51, see Figure 6 As shown.
[0030] The insulating base plate 11 provides insulation and isolation to the high-voltage electrode 22. This insulation can be achieved in various ways: the insulating base plate 11 can be an insulating plate with sufficient high-voltage insulation characteristics; or, the insulating base plate 11 can be a plastic housing commonly used in conventional electronic equipment, along with another insulating plate or dielectric plate disposed on the inner side of the plastic housing that meets high-voltage insulation characteristics. This insulating plate or dielectric plate serves as part of the insulating base plate 11 and abuts against the high-voltage electrode 22, thus providing insulation and isolation between the outer side of the insulating base plate 11 and the high-voltage electrode 22.
[0031] Insulating adhesive 3 is disposed in the first gap 51 and the second gap 52. The dielectric barrier discharge unit 2 is fixed in the receiving tank by the insulating adhesive 3. At the same time, the insulating adhesive 3 is used to waterproof and seal the high voltage electrode 22, preventing external liquids such as water from entering the receiving tank through the first gap 51 and the second gap 52 and causing short circuit or leakage of the high voltage electrode 22, thereby improving the safety and reliability of the plasma generator.
[0032] The insulating adhesive 3 within the first gap 51 only needs to not cover the surface of the low-voltage electrode 23. Preferably, the top surface of the insulating adhesive 3 within the first gap 51 is lower than the low-voltage electrode 23, so that the insulating adhesive 3 will not flow to submerge the low-voltage electrode 23 and solidify on the surface of the low-voltage electrode 23 before solidification, thus avoiding a reduction in the air ionization efficiency of the plasma generator when the insulating adhesive 3 solidifies on the surface of the low-voltage electrode 23.
[0033] During assembly, the first terminal 221 and the second terminal 231 are passed out of the corresponding through holes 121 from the receiving groove, so that the dielectric barrier discharge unit 2 is inserted into the receiving groove. At this time, the bottom side of the high voltage electrode 22 relative to the low voltage electrode 23 abuts against the insulating base plate 11. Then, an appropriate amount of insulating glue 3 is injected into the first gap 51 through the top of the first gap 51. The insulating glue 3 flows down from the first gap 51 into the second gap 52. After the insulating glue 3 solidifies, the dielectric barrier discharge unit 2 is fixed in the receiving groove. At the same time, the high voltage electrode 22 is waterproofed and sealed by the insulating glue 3.
[0034] Alternatively, the top surface of the enclosure 12 can be set lower than the low-pressure electrode 23, or the top surface of the enclosure 12 can be set flush with the low-pressure electrode 23. In this way, when the plasma generator is working, the ion cluster formed by the ionization of air by the low-pressure electrode 23 will not be blocked by the surrounding enclosure 12, making it easier for the ion cluster to overflow, thereby improving the air sterilization and disinfection efficiency of the plasma generator.
[0035] In some preferred embodiments, in order to improve the reliability of fixing the dielectric barrier discharge unit 2 with insulating adhesive 3, a fixing member is also included to limit the dielectric barrier discharge unit 2 within the receiving groove.
[0036] Among them, the fasteners come in many forms, and it is best to ensure that the fasteners do not obstruct the low-voltage electrode 23 during implementation.
[0037] For example, the fastener includes a limiting plate 4 detachably connected to the insulating housing 1, and part or all of the low-voltage electrode 23 is exposed relative to the limiting plate 4. The limiting plate 4 is provided with a buckle 41, and the enclosure 12 is provided with a corresponding fastening position. The buckle 41 and the fastening position are engaged to assemble and connect the limiting plate 4 to the insulating housing 1. The limiting plate 4 is pressed against one end of the dielectric plate 21 to limit the dielectric barrier discharge unit 2 within the receiving groove.
[0038] When the plasma generator is working, it generates a high-voltage electric field to ionize the air. The ions formed by the ionization of the air overflow from the low-voltage electrode 23 into the air, and the air is sterilized, disinfected and purified by the ions. Example
[0039] Compared to Embodiment 1, the implementation method of the fastener is different. The fastener adopts a limiting sleeve, which is made of plastic, silicone, etc. The limiting sleeve is sleeved on the insulating shell 1 and pressed against one end of the dielectric plate 21. Furthermore, the sleeve engagement position of the limiting sleeve is reasonably selected so that part or all of the low-voltage electrode 23 is exposed relative to the limiting sleeve. Example
[0040] Compared to Embodiment 1, the implementation method of the fixing component is different. The fixing component includes an elastic element (e.g., a spring or sheet) disposed on the inner sidewall of one of the enclosures 12. When the dielectric barrier discharge unit 2 is placed into the receiving groove, one side of the dielectric plate 21 elastically abuts against the elastic element, thereby limiting and fixing the dielectric barrier discharge unit 2 within the receiving groove.
[0041] Therefore, the thin and light plasma generating device disclosed in this utility model has a simple overall structure, adopts a thin and light design, has a small overall thickness, and uses insulating glue 3 for encapsulation to make the high voltage electrode 22 waterproof and sealed. It is not only easy to assemble, but also can prevent leakage or short circuit of the high voltage electrode 22, thus making it safe and reliable to use. This provides feasible conditions for implementing the plasma generating device in wearable devices.
[0042] This utility model also discloses a wearable device, including the aforementioned thin and light plasma generator. Due to the small overall thickness and slim design of the thin and light plasma generator, it facilitates its use within the relatively limited product size of wearable air sterilizers.
[0043] Of course, wearable devices may only have air sterilization and disinfection functions, or they may have other functions. For example, specific products may be wearable air sterilizers, neck fans, neck massagers, headphones, etc., and there are no restrictions here.
[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A light and thin plasma generating device, comprising an insulating shell (1) and a dielectric barrier discharge unit (2), the dielectric barrier discharge unit (2) comprising a dielectric plate (21), a high-voltage electrode (22) and a low-voltage electrode (23) fixed on two opposite sides of the dielectric plate (21) respectively; characterized in that: the insulating shell (1) comprises an insulating bottom plate (11) and a surrounding wall (12) surrounding the periphery of the insulating bottom plate (11), and a containing groove is formed by the surrounding wall (12) and the insulating bottom plate (11); the dielectric barrier discharge unit (2) is arranged in the containing groove, and a first gap (51) is formed between the periphery of the dielectric barrier discharge unit (2) and the surrounding wall (12), the high-voltage electrode (22) abuts against the insulating bottom plate (11), and the low-voltage electrode (23) is arranged exposed in the containing groove; the high-voltage electrode (22) is arranged in a size smaller than that of the dielectric plate (21), a second gap (52) is formed between the outside of the high-voltage electrode (22) and the insulating bottom plate (11) and between the dielectric plate (21) and the insulating bottom plate (11), and the second gap (52) is connected with the first gap (51); insulating glue (3) is arranged in the first gap (51) and the second gap (52) to fix the dielectric barrier discharge unit (2) in the containing groove and to waterproof and seal the high-voltage electrode (22) by the insulating glue (3). The top end surface of the insulating glue (3) arranged in the first gap (51) is lower than the low-voltage electrode (23).
2. The thin and light plasma generating device according to claim 1, wherein: The dielectric plate (21) is a plastic plate or a glass plate.
3. The thin and light plasma generating device according to claim 1, wherein: The high-voltage electrode (22) and the low-voltage electrode (23) are respectively provided with a first connecting terminal (221) and a second connecting terminal (231), a group of through holes (121) are arranged on one of the surrounding walls (12) at intervals, and the first connecting terminal (221) and the second connecting terminal (231) respectively extend out of the insulating shell (1) from one of the through holes (121).
4. The thin and light plasma generating device according to claim 1, wherein: The top end surface of the surrounding wall (12) is lower than the low-voltage electrode (23), or the top end surface of the surrounding wall (12) is arranged flush with the low-voltage electrode (23).
5. The thin and light plasma generating device according to claim 1, wherein: Further comprising a fixing member for limiting the dielectric barrier discharge unit (2) in the containing groove.
6. The thin and light plasma generating device according to any one of claims 1 to 5, wherein: The fixing member comprises a limiting plate (4) detachably connected with the insulating shell (1), the limiting plate (4) is arranged on one end of the dielectric plate (21), and part or all of the low-voltage electrode (23) is arranged exposed relative to the limiting plate (4).
7. The thin and light plasma generating device according to claim 6, wherein: The fixing member comprises a limiting sleeve arranged on the insulating shell (1) and arranged on one end of the dielectric plate (21), and part or all of the low-voltage electrode (23) is arranged exposed relative to the limiting sleeve.
8. The thin and light plasma generating device according to claim 6, wherein: The fixing member comprises an elastic member arranged on the inner wall of one of the surrounding walls (12), and one side edge of the dielectric plate (21) elastically abuts against the elastic member.
9. The thin and light plasma generating device according to claim 6, wherein: The light and thin plasma generating device according to any one of claims 1-9.
10. A wearable device, comprising: