Low-temperature plasma device
By designing a detachable protective cover and excitation hole structure, the problems of inconvenience and limited functionality of cryogenic plasma devices have been solved, realizing a portable and multifunctional cryogenic plasma device that can meet various application needs.
Patent Information
- Application Number
- CN202422665192.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Existing cryogenic plasma devices lack portability and cannot meet the needs of different applications.
A low-temperature plasma device was designed, including a body, a protective cover, an excitation electrode, and a grounding structure. The design of the detachable protective cover and excitation hole allows for the replacement of protective covers of different lengths and sizes, and the adjustment of plasma intensity and effective area to meet various application requirements.
It achieves portability and versatility of the cryogenic plasma device, and can adjust the intensity and effective area of the plasma by changing the protective cover and excitation hole to adapt to different application scenarios.
Smart Images
Figure CN223859299U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrician electric appliance technical field, concretely relates to a low temperature plasma device. BACKGROUND
[0002] At present, the low temperature plasma equipment is often large in size, single in function, which restricts its application in civil field. The atmospheric pressure air low temperature plasma is easy to develop into streamer spark discharge, and its dispersion and stable discharge effect directly determines its application scene, and is restricted by the structure design of the plasma device. The application of low temperature plasma in medical and biological fields such as beauty requires higher requirements for its size, weight, shape and multi-function, and how to design and develop a handheld portable low temperature plasma device to meet different application requirements is an urgent problem in the application field. SUMMARY
[0003] Based on the above description, the utility model provides a kind of low temperature plasma device to solve the problem that existing low temperature plasma device does not have the function of handheld convenience and meet different application requirements.
[0004] The technical scheme for solving the above technical problems of the utility model is as follows:
[0005] A low temperature plasma device comprises:
[0006] A machine body has a receiving cavity with an opening;
[0007] A protective cover is detachably mounted on the machine body, and the protective cover has a mounting cavity, a mounting hole and an excitation hole which are arranged along a first direction and are used to communicate the mounting cavity with the external environment, and the mounting hole is in communication with the opening;
[0008] A high-voltage power supply is installed in the receiving cavity;
[0009] An excitation electrode extends along the first direction and has a mounting end and a discharge end arranged along the first direction, the excitation electrode is arranged in the mounting hole and the opening, the mounting end is electrically connected to the high-voltage power supply, and the discharge end extends into the mounting cavity and is coaxially arranged with the excitation hole; and
[0010] A grounding structure is installed on the peripheral side surface of the machine body, and the grounding structure is electrically connected to the grounding end of the high-voltage power supply.
[0011] On the basis of the above technical scheme, the utility model can also be improved as follows:
[0012] Further, the discharge end is circularly arranged, and is provided with a plurality of discharge structures arranged in an array, each of the plurality of discharge structures is arranged in a conical shape with a pointed end facing the excitation hole, and the plurality of pointed ends are arranged in a flush manner.
[0013] Further, each of the discharge structures is arranged in a conical shape with four edges, the bottom ends of two adjacent discharge structures are connected, and the angle between the opposite two side surfaces of the two adjacent discharge structures is ∠A, 25°≤∠A≤35°.
[0014] Further, the protective cover comprises a shell and a cover body, the shell is detachably mounted on the fuselage, the mounting cavity is formed in the shell, and the shell is provided with a mounting opening communicating with the mounting cavity and the external environment, and the cover body is detachably mounted on the mounting opening.
[0015] The mounting hole is arranged in the shell.
[0016] The excitation hole is arranged in the cover body.
[0017] Further, the end surface of the cover body is provided with a connecting sleeve, the connecting sleeve is matched with the mounting opening and is inserted into the mounting opening.
[0018] The excitation hole corresponds to the inner hole of the connecting sleeve.
[0019] Further, the mounting end of the excitation electrode is provided with a plug-in pin extending in a first direction.
[0020] The low-temperature plasma device further comprises a mounting plate arranged in the containing cavity, and the mounting plate is provided with a plug-in hole for the plug-in pin to pass through, and the plug-in hole is used for inserting the plug-in pin.
[0021] Further, the low-temperature plasma device further comprises a mounting seat, the mounting seat is detachably connected to the end surface of the mounting plate facing the mounting hole, and at least part of the mounting seat is matched with the mounting hole and is inserted into the mounting hole, and the mounting seat is provided with a containing channel extending in the first direction.
[0022] At least part of the plug-in pin is contained in the containing channel, and the discharge end of the plug-in pin is exposed outside the containing channel.
[0023] Further, the distance between the discharge end and the excitation hole in the first direction is d, d≥10mm.
[0024] Further, the grounding structure is arranged as a grounding metal ring.
[0025] The peripheral surface of the fuselage is recessed with an annular groove matched with the grounding structure.
[0026] Compared with the prior art, the technical scheme of the present application has the following beneficial technical effects:
[0027] The grounding structure is installed on the peripheral side of the machine body, so as to be in contact with the grounding structure and be in the ground potential when a human hand holds the machine body. The protective cover is close to the face, and the discharge end of the excitation electrode generates low-temperature plasma to treat the skin to be treated of the face through the excitation hole. Since the grounding structure is arranged on the machine body, the protective cover is convenient to disassemble and replace. The protective cover is detachably installed on the machine body, so that the protective cover of different lengths can be replaced, the distance between the discharge end and the excitation hole in the first direction is adjusted, the strength of the low-temperature plasma is adjusted, or the protective cover with different sizes of the excitation hole is replaced to adjust the action area of the low-temperature plasma, so that different application requirements can be met. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 A structure schematic view of a low-temperature plasma device provided by the present application is shown in the embodiment of the present application.
[0029] Figure 2 A structure schematic view of an explosion structure is shown in the embodiment of the present application. Figure 1
[0030] Figure 3 A top view schematic view of a low-temperature plasma device provided by the present application is shown in the embodiment of the present application.
[0031] Figure 4 A structure schematic view of an explosion structure is shown in the embodiment of the present application. Figure 3 A sectional view schematic view along A-A is shown in the embodiment of the present application.
[0032] Figure 5 A structure schematic view of an explosion structure is shown in the embodiment of the present application. Figure 4 An enlarged schematic view of a local part A is shown in the embodiment of the present application.
[0033] Figure 6 A structure schematic view of a protective cover, a mounting seat and a mounting plate is shown in the embodiment of the present application.
[0034] Figure 7 A sectional view schematic view along B-B is shown in the embodiment of the present application. Figure 6
[0035] A structure schematic view of a protective cover and a mounting seat mounted on a machine body is shown in the embodiment of the present application. Figure 8
[0036] A structure schematic view of an excitation electrode is shown in the embodiment of the present application. Figure 9
[0037] A structure schematic view of another view of an excitation electrode is shown in the embodiment of the present application. Figure 10 Figure 9
[0038] In the drawings, the components listed in the following table are represented by the following reference numerals:
[0039] 1. body; 11. accommodating cavity; 111. opening; 12. annular groove; 13. bolt hole; 14. connecting column; 2. protective cover; 21. shell; 211. mounting cavity; 212. mounting hole; 213. mounting port; 214. connecting hole; 22. cover body; 221. excitation hole; 23. connecting sleeve; 3. high-voltage power supply; 4. excitation electrode; 41. mounting end; 411. latch; 412. tail spike; 42. discharge end; 421. discharge structure; 5. grounding structure; 51. grounding metal ring; 6. mounting plate; 61. jack; 62. first through hole; 7. mounting seat; 71. accommodating channel; 72. connecting pin; 73. second through hole. DETAILED DESCRIPTION
[0040] For the purpose of promoting an understanding of the application, the application will now be described in greater detail with reference to the figures. The embodiments of the application are illustrated by way of example in the accompanying figures. The application can, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0042] It will be understood that the spatially relative terms "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other direction, and the spatially relative terms used herein are intended to encompass such additional orientations. It is understood that the spatially relative terms so used are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other direction, and the spatially relative terms used herein are intended to encompass such additional orientations.
[0043] It is noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element, or connected to the other element through intervening elements. "Connected" in the following embodiments, if the connected circuit, module, unit, etc. have the transmission of electrical signal or data between each other, should be understood as "electrically connected", "communicatively connected", etc.
[0044] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", or the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
[0045] Please refer to Figure 1 , Figure 2 and Figure 4 In this embodiment, the low-temperature plasma device includes a body 1, a protective cover 2, a high-voltage power supply 3 and an excitation electrode 4. The body 1 is provided with a receiving cavity 11 having an opening 111. The protective cover 2 is detachably mounted on the body 1 and is provided with a mounting cavity 211 and mounting holes 212 and excitation holes 221 for communicating the mounting cavity 211 with the external environment and being oppositely distributed along a first direction. The mounting holes 212 are in communication with the opening 111. The high-voltage power supply 3 is mounted in the receiving cavity 11. The excitation electrode 4 extends along the first direction and has a mounting end 41 and a discharge end 42 oppositely distributed along the first direction. The excitation electrode 4 is arranged in the mounting holes 212 and the opening 111. The mounting end 41 is electrically connected with the high-voltage power supply 3. The discharge end 42 extends into the mounting cavity 211 and is coaxially arranged with the excitation holes 221. The grounding structure 5 is mounted on the peripheral side surface of the body 1 and is electrically connected with the grounding end of the high-voltage power supply 3.
[0046] The grounding structure 5 is mounted on the peripheral side surface of the body 1 to be in contact with the grounding structure 5 when a person holds the body 1 to be at the ground potential. The protective cover 2 is close to the face. The discharge end 42 of the excitation electrode generates low-temperature plasma to treat the skin to be treated of the face through the excitation holes 221. Since the grounding structure 5 is arranged on the body 1, the protective cover 2 is convenient to dismount and replace. The protective cover 2 is detachably mounted on the body 1, so that the protective cover 2 of different lengths can be replaced to adjust the distance between the discharge end and the excitation holes 221 along the first direction to adjust the strength of the low-temperature plasma, or the protective cover 2 with the excitation holes 221 of different sizes is replaced to adjust the action area of the low-temperature plasma, so that different application requirements can be met.
[0047] Specifically, in this embodiment, refer to Figure 3 , Figure 9 and Figure 10The discharge end 42 is circularly arranged, and is provided with a plurality of discharge structures 421 arranged in an array, each of the discharge structures 421 is arranged in a conical shape with a tip pointing to the excitation hole 221, and the tips of the plurality of discharge structures 421 are arranged in a flush manner. The excitation electrode is made of an ablation-resistant wire material, preferably brass or stainless steel. The discharge end 42 is an array of metal tips with the tips of the top flush and evenly and densely distributed in a circle, and the curvature radius of the tip of each discharge structure 421 is as small as possible.
[0048] More specifically, with continued reference to Figure 3 , Figure 9 and Figure 10 , each of the discharge structures 421 is arranged in a conical shape with four edges, the bottom ends of two adjacent discharge structures 421 are connected, and the angle between the opposite two sides of two adjacent discharge structures 421 is ∠A, 25°≤∠A≤35°. In this embodiment, ∠A=30°.
[0049] In this embodiment, the discharge end 42 is processed with a plurality of discharge structures 421 by batch processing. Batch processing refers to a processing process on metal, in which various textures and pattern designs are processed on the surface of the metal. By batch processing, a plurality of discharge structures 421 are processed on the discharge end 42, which are evenly and densely distributed in a circle, the curvature radius of the tip of each discharge structure 421 is as small as possible, and the excitation effect is better.
[0050] In another embodiment, the plurality of discharge structures 421 can also be arranged as a plurality of metal needles evenly and densely distributed in a circle.
[0051] Further, in this embodiment, with reference to Figures 5 to 7 , the protective cover 2 includes a shell 21 and a cover 22, the shell 21 is detachably mounted on the fuselage 1, the mounting cavity 211 is formed in the shell 21, and the mounting opening 213 is provided to communicate the mounting cavity 211 with the external environment, and the cover 22 is detachably mounted on the mounting opening 213; the mounting hole 212 is provided on the shell 21; and the excitation hole 221 is provided on the cover 22. Thus, the cover 22 with different diameters of the excitation hole 221 can be directly mounted on the shell 21 by replacement to adjust the area of the low-temperature plasma acting on the skin to be treated on the face. The function is diversified, and the operation is more convenient.
[0052] Further, with continued reference to Figures 5 to 7The end surface of the cover 22 is provided with a connecting sleeve 23, which is adapted to the mounting port 213 and is inserted into the mounting port 213; the exciting hole 221 corresponds to the inner hole of the connecting sleeve 23. In the embodiment, the upper cavity wall of the mounting cavity 211 is provided through to form the mounting port 213. The connecting sleeve 23 is inserted into the mounting port 213, and the peripheral side wall of the connecting sleeve 23 abuts against the peripheral side wall of the mounting cavity 211, and the end surface of the cover 22 towards the mounting port 213 overlaps the upper end surface of the shell 21. Thus, the shell 21 can be tightly mounted on the cover 22 and can be detached from the shell 21 to facilitate replacement.
[0053] In another embodiment, the periphery of the connecting sleeve 23 and the peripheral side wall of the mounting cavity 211 are both provided with screw threads that are screwed together.
[0054] In the embodiment, the fuselage 1 has high-voltage insulation capability, which ensures the insulation isolation of the high-voltage of the high-voltage power supply 3 and the ground end, and the insulation isolation of the exciting electrode and the ground structure 5. The protective cover 2 is made of an insulating skin-friendly material, preferably PC.
[0055] The utility model does not limit the shape of the protective cover 2, as long as it can be mounted and dismounted on the fuselage 1 and is provided with the exciting hole 221 and the mounting hole 212 that are relatively distributed along the first direction. In the embodiment, the protective cover 2 is a whole hollow, upper and lower opening, cylindrical-shaped cover.
[0056] In order to mount the exciting electrode, referring to Figures 5 to 8 The mounting end 41 of the exciting electrode is provided with a plug 411 extending along the first direction; the low-temperature plasma device further comprises a mounting plate 6 provided in the containing cavity 11 and provided with a plug hole 61 for the plug 411 to pass through, the plug hole 61 is used for the plug 411 to be inserted, and the plug 411 extends out of the plug hole 61 into the containing cavity 11 to facilitate electrical connection with the high-voltage power supply 3. In the embodiment, the exciting electrode is first mounted on the mounting plate 6 through the cooperation of the plug 411 and the plug hole 61, ensuring that the exciting electrode is vertically arranged, and then the mounting plate 6 is fixed in the containing cavity 11 and the exciting electrode passes through the mounting hole 212, ensuring that the exciting electrode is concentric with the mounting hole 212 and the exciting hole 221. In this way, the installation operation is simple, and the product quality is improved.
[0057] In addition, the plug 411 is further connected with a barb 412, the barb 412 is electrically connected with the high-voltage battery, and the length of the barb 412 is L, L≤0.05mm.
[0058] In the embodiment, referring toFigure 5 The lower cavity wall of the mounting cavity 211 is provided with a plurality of connecting holes 214 which are circumferentially spaced around the mounting hole 212; the fuselage 1 is provided with a plurality of bolt holes 13 which correspond to the connecting holes 214; the protective cover 2 further comprises a plurality of connecting bolts, each of which passes through a corresponding connecting hole 214 and is screwed into a corresponding bolt hole 13, thereby firmly mounting the protective cover 2 on the fuselage 1.
[0059] In another embodiment, the opposite surfaces of the housing 21 and the fuselage 1 can be provided with a plurality of clamping blocks and a plurality of clamping grooves which correspond to the clamping blocks, respectively, to facilitate the disassembly and assembly of the protective cover 2 and the fuselage 1.
[0060] Specifically, referring to Figures 5 to 8 The low-temperature plasma device further comprises a mounting seat 7 which is detachably connected to the end face of the mounting plate 6 facing the mounting hole 212, and at least part of which is adapted to the mounting hole 212 and inserted into the mounting hole 212, and the mounting seat 7 is provided with an accommodating channel 71 which penetrates in the first direction; at least part of the insertion pin 411 is accommodated in the accommodating channel 71, and the discharge end 42 thereof is exposed outside the accommodating channel 71. The mounting seat 7, the mounting plate 6 and the excitation electrode are assembled into one body first, and then assembled into the mounting hole 212, so that the excitation electrode is coaxially arranged with the excitation hole 221, the mounting seat 7 plays a role of auxiliary installation and protection of the excitation electrode, and has an attractive appearance.
[0061] In the present embodiment, the part of the mounting seat 7 away from the mounting hole 212 is adapted to the mounting plate 6 and is provided with a plurality of connecting pins 72 which are circumferentially spaced along the accommodating channel 71, and the mounting plate 6 is provided with a plurality of first through holes 62 which correspond to the connecting pins 72 and are adapted to the connecting pins 72. Each of the connecting pins 72 penetrates through a corresponding first through hole 62, thereby mounting the mounting plate 6 to the end face of the mounting seat 7 away from the mounting hole 212. The mounting seat 7 is further provided with a plurality of second through holes 73, and the connecting columns 14 of the upper cavity wall of the accommodating cavity 11 pass through the second through holes 73 one by one, so as to fix the mounting seat 7 to the fuselage 1.
[0062] In the present embodiment, the distance between the discharge end 42 and the excitation hole 221 in the first direction is set as d, and d≥10mm.
[0063] The shape of the grounding structure 5 is not limited, as long as it can be contacted when a person holds the body 1, in this embodiment, the grounding structure 5 is set as a grounding metal ring 51; the circumferential side of the body 1 is concavely provided with a ring-shaped groove 12 matched with the grounding structure 5. Thus, it is convenient to contact a person when the body 1 is held, and the person is ensured to be at the ground potential.
[0064] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A low temperature plasma device, characterized by, The low-temperature plasma device comprises: a machine body provided with a containing cavity with an opening; a protective cover detachably mounted on the machine body, the protective cover being provided with a mounting cavity and a mounting hole and an excitation hole which are arranged opposite to each other along a first direction and are used to communicate the mounting cavity with the external environment, the mounting hole being arranged in communication with the opening; a high-voltage power supply mounted in the containing cavity; an excitation electrode extending along the first direction and having a mounting end and a discharge end arranged along the first direction, the excitation electrode being arranged through the mounting hole and the opening, the mounting end being electrically connected with the high-voltage power supply, and the discharge end being arranged coaxially with the excitation hole and extending into the mounting cavity; and a grounding structure mounted on the peripheral side surface of the machine body and electrically connected with the grounding end of the high-voltage power supply.
2. The low temperature plasma device of claim 1, wherein, The discharge end is circularly arranged and provided with a plurality of discharge structures arranged in an array, each of the discharge structures being arranged in a conical shape with a tip end facing the excitation hole, and the tip ends being arranged flush.
3. The low temperature plasma device of claim 2, wherein, Each of the discharge structures is arranged in a conical shape with four edges, the bottom ends of two adjacent discharge structures being connected, and the angle between the opposite side surfaces of the two adjacent discharge structures being ∠A, 25°≤∠A≤35°.
4. The low temperature plasma device of claim 1, wherein, The protective cover comprises a shell and a cover body, the shell being detachably mounted on the machine body, the mounting cavity being formed in the shell, and the shell being provided with a mounting opening communicating the mounting cavity with the external environment, and the cover body being detachably mounted on the mounting opening. The mounting hole is arranged in the shell. The excitation hole is arranged in the cover body.
5. The low temperature plasma device of claim 4, wherein, The end surface of the cover body is provided with a connecting sleeve which is adapted to the mounting opening and is inserted into the mounting opening. The excitation hole corresponds to the inner hole of the connecting sleeve.
6. The low temperature plasma device of claim 1, wherein, The mounting end of the excitation electrode is provided with a plug pin extending along the first direction. The low-temperature plasma device further comprises a mounting plate arranged in the containing cavity and provided with a plug hole through which the plug pin is arranged to be inserted.
7. The low temperature plasma device of claim 6, wherein, The low-temperature plasma device further comprises a mounting seat which is detachably connected to the end surface of the mounting plate facing the mounting hole, at least a part of the mounting seat being adapted to the mounting hole and being inserted into the mounting hole, the mounting seat being provided with a containing passage extending along the first direction; At least a part of the plug pin is arranged in the containing passage, and the discharge end of the plug pin is exposed outside the containing passage.
8. The low temperature plasma device of claim 1, wherein, The distance between the discharge end and the excitation hole along the first direction is d, and d≥10 mm.
9. The low temperature plasma device of claim 1, wherein, The grounding structure is arranged as a grounding metal ring. The peripheral side surface of the machine body is recessed with an annular groove which is adapted to the grounding structure.