Elastic single-base single-pass tubular plasma generator

Abstract

The utility model discloses an elastic single-base single-pass tubular plasma generator, which comprises a fixed plate, an elastic insulating base, a single-pass glass tube and an outer electrode metal net, the fixed plate is provided with an inner electrode conductive screw, the elastic insulating base is provided with a through hole for the inner electrode conductive screw to pass through, and the outer electrode metal net is provided with a through hole for the inner electrode conductive screw to pass through. The single-pass glass tube is a tube body with an opening in the lower end, the elastic insulating base is elastically attached and fixed to the opening, the inner electrode conductive screw penetrates through the through hole and then stretches into the tube body, and the part, stretching into the tube body, of the inner electrode conductive screw is sleeved with an inner electrode metal net and electrically connected with the inner electrode conductive screw. The inner electrode metal net is attached to the inner wall of the single-pass glass tube, and the outer electrode metal net is arranged on the peripheral wall of the single-pass glass tube in a sleeving mode. The inner electrode conductive screw rod is mounted on the fixing plate and penetrates through the elastic insulating base, so that the inner electrode metal net is conveniently connected with a positive electrode power supply; and the arrangement of the elastic insulating base facilitates the installation and fixation of the one-way glass tube.

Description

Technical Field

[0001] The utility model relates to the field of air purifiers, in particular to an elastic single-base single-pass tube type plasma generator. Background Art

[0002] The main working principle of the plasma generator is to increase the low voltage to positive high voltage and negative high voltage through a boost circuit, and use the positive high voltage and negative high voltage to ionize the air (mainly oxygen) to produce a large number of positive ions and negative ions. The number of negative ions is greater than the number of positive ions (the number of negative ions is approximately 1.5 times the number of positive ions).

[0003] As the requirements for air purifiers increase, plasma air purifiers have the advantages of good air purification effect and non-irritation (compared with ultraviolet irradiators and ozone generators).

[0004] Existing plasma air purifiers, such as Chinese patent CN201620871606.7, use a single base installation method, which has the following disadvantages:

[0005] (1) The installation stability of the single base is difficult to fasten with the straight glass tube and the assembly is cumbersome. In addition, a large amount of glue and adhesive (to achieve relative sealing) and other environmental pollutants are required for bonding between the single base and the straight glass tube, which will pollute the environment. Moreover, the sealing performance of the glue will decay after a certain period of use.

[0006] (2) The inner electrode assembly is difficult to tighten, which affects the stable release of plasma and the assembly is cumbersome;

[0007] (3) The outer electrode metal mesh has an outward tension, which causes insufficient elastic contact between it and the outer side of the glass tube and makes it easy to loosen and slide off the end of the glass cover, affecting the stable release of plasma;

[0008] (4) The outer electrode of the plasma tube cannot be well connected to the wire, which affects the stable release of plasma and makes the assembly complicated;

[0009] (5) The manufacturing and assembly process has high requirements;

[0010] (6) The stability of the plasma generator is greatly affected by the above factors. Utility Model Content

[0011] The main purpose of the utility model is to provide an elastic single-base single-pass tube type plasma generator, aiming at improving the plasma generator with a single-base structure.

[0012] To achieve the above object, the utility model provides an elastic single-base single-pass tube plasma generator, comprising:

[0013] A fixing plate, the fixing plate is made of insulating material and is provided with an inner electrode conductive screw;

[0014] An elastic insulating base, wherein the elastic insulating base is provided with a through hole for the inner electrode conductive screw to pass through;

[0015] A single-pass glass tube, wherein the single-pass glass tube is a tube body with an opening at the lower end, and the elastic insulating base is elastically fitted and fixed to the opening.

[0016] The inner electrode conductive screw passes through the through hole and extends into the tube body, the portion of the inner electrode conductive screw extending into the tube body is sleeved with an inner electrode metal mesh and electrically connected to the inner electrode conductive screw, and the inner electrode metal mesh is in contact with the inner wall of the single-pass glass tube;

[0017] The outer electrode metal mesh is sleeved on the outer peripheral wall of the single-pass glass tube.

[0018] In the actual design, the inner electrode conductive screw is installed on the fixing plate and passes through the elastic insulating base, so that the inner electrode metal mesh can be conveniently connected to the positive power supply; and the setting of the elastic insulating base can facilitate the installation and fixation of the single-pass glass tube. At the same time, the inner electrode conductive screw and the wall deformation of the elastic insulating base can realize the mutual locking of the elastic insulating base and the single-pass glass tube. The structure is simple and stable, and the use of sealing materials such as glue is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a half-section schematic diagram of the utility model;

[0020] Figure 2 This is a cross-sectional view of the utility model;

[0021] Figure 3 This is an exploded view of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the utility model.

[0023] In the figure,

[0024] 1 is a fixing plate, 11 is a first positioning hole, 12 is a second positioning hole,

[0025] 2 is an elastic insulating base, 21 is a through hole, 22 is a positioning groove,

[0026] 3 is the inner electrode conductive screw, 31 is the gasket, 32 is the fixing nut,

[0027] 41 is the inner electrode metal mesh, 42 is the outer electrode metal mesh,

[0028] 51 is an inner electrode sheet, 52 is an outer electrode sheet,

[0029] 6 is a double-pass stud, 61 is a countersunk screw, 62 is an inner conductive metal spring,

[0030] 7 is a special-shaped conductive metal spring,

[0031] 8 is a single-pass glass tube. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] like Figures 1 to 4 As shown, an elastic single-base single-pass tube plasma generator comprises:

[0036] A fixing plate 1, wherein the fixing plate 1 is made of an insulating material and is provided with an inner electrode conductive screw 3;

[0037] An elastic insulating base 2, wherein the elastic insulating base 2 is provided with a through hole 21 for the inner electrode conductive screw 3 to pass through;

[0038] The single-pass glass tube 8 is a tube body with an opening at the lower end, and the elastic insulating base 2 is elastically fitted and fixed to the opening.

[0039] The inner electrode conductive screw 3 passes through the through hole 21 and extends into the tube body. The portion of the inner electrode conductive screw 3 extending into the tube body is sleeved with an inner electrode metal mesh 41 and is electrically connected to the inner electrode conductive screw 3. The inner electrode metal mesh 41 is in contact with the inner wall of the single-pass glass tube 8.

[0040] The outer electrode metal mesh 42 is sleeved on the outer peripheral wall of the single-pass glass tube 8 .

[0041] In the actual design, the inner electrode conductive screw 3 is installed on the fixing plate 1 and passes through the elastic insulating base 2, so that the inner electrode metal mesh 41 is conveniently connected to the positive power supply; and the setting of the elastic insulating base 2 can facilitate the installation and fixation of the single-pass glass tube 8. At the same time, the inner electrode conductive screw 3 and the wall deformation of the elastic insulating base 2 can realize the mutual locking of the elastic insulating base 2 and the single-pass glass tube 8. The structure is simple and stable, and the use of sealing materials such as glue is effectively reduced.

[0042] Specifically, the inner diameter of the through hole 21 is smaller than the outer diameter of the inner electrode conductive screw 3 .

[0043] Thereby, the deformation of the elastic insulating base 2 is realized, thereby achieving the clamping of the opening. Of course, a protruding sealing ring can be sleeved on the outer peripheral wall of the elastic insulating base 2 to achieve the above-mentioned technical effect; its assembly is simpler and the structure is more stable; of course, in the specific structure, a protrusion or a groove can be set at the position of the opening of the single-pass glass tube 8 to enable the elastic insulating base 2 and the single-pass glass tube 8 to engage with each other.

[0044] However, in actual design, it can be understood as deformation engagement and negative pressure engagement, so its bonding strength is also relatively high.

[0045] In the embodiment of the utility model, the elastic insulating base 2 is provided with a positioning groove 22 at the position of the through hole 21, the single-pass glass tube 8 is inserted into the positioning groove 22, and a gasket 31 is provided between the positioning groove 22 and the single-pass glass tube 8 to make the opening and the positioning groove 22 fit tightly;

[0046] The outer diameter of the elastic insulating base 2 is adapted to the inner diameter of the opening, and the opening is inserted into the upper part of the elastic insulating base 2 and elastically fits the elastic insulating base 2. In both embodiments, the installation is relatively simple, the sealing performance is good, and the fixing effect is also good.

[0047] Specifically, a fixing nut 32 is provided at the lower end of the inner electrode conductive screw 3 extending out of the fixing plate 1 , thereby achieving the inner electrode conductive screw 3 being installed on the fixing plate 1 .

[0048] In the embodiment of the utility model, an inner electrode sheet 51 is provided between the fixing plate 1 and the fixing nut 32. Thus, the inner electrode conductive screw is energized. The inner and outer electrode insulating fixing plates 1 with holes are used. On the one hand, the inner and outer electrodes can be fixed on the plates to facilitate connection with an external power source. On the other hand, the two ends of the insulating fixing plate 1 are fixed to the corresponding air purifier with screws, which can achieve convenient and stable installation.

[0049] Specifically, a double-through stud 6 is provided at the upper end of the inner electrode conductive screw 3, and the double-through stud 6 is provided with a screw hole set through it. The lower end of the double-through stud 6 is screwed to the inner electrode conductive screw 3, and a countersunk screw 61 is screwed on the upper end of the double-through stud 6. The inner circumferential wall of the inner electrode metal mesh 41 is elastically fitted with the outer wall of the double-through stud 6, and an inner conductive metal spring 62 is provided between the countersunk screw 61 and the double-through stud 6.

[0050] It can ensure that the inner electrode metal mesh 41 is not easily displaced (concentricity and support), and the outer side surface of the inner electrode metal mesh 41 can be tightly attached to the inner wall of the single-pass glass tube to ensure stable plasma release. In addition, the length of the inner conductive metal spring 62 can be adjusted according to the inner diameter of the glass tube without changing the size of other inner electrode components to achieve the above function. For example, the upper end of the inner electrode metal mesh 41 is fixed by the inner conductive metal spring 62 to adjust its relative length.

[0051] In the embodiment of the utility model, the fixing plate 1 is provided with an outer electrode sheet 52, and the outer electrode sheet 52 is connected to a special-shaped conductive metal spring 7, which elastically abuts against the outer peripheral wall of the outer electrode metal mesh 42 and extends to the middle or lower position of the outer electrode metal mesh 42.

[0052] The upper end portion of the special-shaped conductive metal spring 7 is elastically wrapped around the outer electrode metal mesh to generate inward pressure so that the outer electrode metal mesh fully elastically contacts the outer peripheral wall of the single-pass glass tube; the middle end portion is sleeved on the outer wall surface of the single-pass glass tube and elastically contacts the side end of the outer electrode metal mesh to tighten and fully conduct the outer electrode metal mesh; the lower end portion is sleeved on the outer electrode sheet 52 to be well connected to the wire and is easy to assemble; the special-shaped conductive metal spring 7 fully conducts and tightens the outer electrode assembly to ensure stable plasma release.

[0053] Specifically, the fixing plate 1 is provided with a first positioning hole 11 and a second positioning hole 12, wherein the first positioning hole 11 is used to install an inner electrode sheet 51, and the second positioning hole 12 is used to install an outer electrode sheet 52, wherein the outer electrode sheet 52 is connected to the special-shaped conductive metal spring 7, wherein the electrode sheet can be fixed by means of screws, welding clips, etc.

[0054] In the embodiment of the utility model, the inner electrode metal mesh 41 is provided with an inner mesh aperture, the outer electrode metal mesh is provided with an outer mesh aperture, and the ratio of the inner mesh aperture to the outer mesh aperture is 1:1 to 1:50. In order to meet the requirements of different application environments for plasma release concentration, the plasma release concentration can be adjusted by changing the ratio of the inner and outer electrode metal mesh apertures without changing the relevant parameters of the driving circuit.

[0055] Specifically, the length ratio of the outer electrode metal mesh to the inner conductive mesh is 1:1 to 1:5. In order to meet the requirements of different application environments for plasma release concentration, the plasma release concentration can be adjusted by changing the length ratio of the inner and outer electrode metal meshes without changing the relevant parameters of the driving circuit.

[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An elastic single-base single-pass tube plasma generator, characterized in that: include: A fixing plate, the fixing plate is made of insulating material and is provided with an inner electrode conductive screw; An elastic insulating base, wherein the elastic insulating base is provided with a through hole for the inner electrode conductive screw to pass through; A single-pass glass tube, wherein the single-pass glass tube is a tube body with an opening at the lower end, and the elastic insulating base is elastically fitted and fixed to the opening. The inner electrode conductive screw passes through the through hole and extends into the tube body, the portion of the inner electrode conductive screw extending into the tube body is sleeved with an inner electrode metal mesh and electrically connected to the inner electrode conductive screw, and the inner electrode metal mesh is in contact with the inner wall of the single-pass glass tube; The outer electrode metal mesh is sleeved on the outer peripheral wall of the single-pass glass tube.

2. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: The elastic insulating base is provided with a positioning groove at the position of the through hole, the single-pass glass tube is inserted in the positioning groove, and a gasket is provided between the positioning groove and the single-pass glass tube to make the opening and the positioning groove fit tightly.

3. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: The outer diameter of the elastic insulating base is matched with the inner diameter of the opening, and the opening is inserted into the upper part of the elastic insulating base and elastically fits with the elastic insulating base.

4. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: A fixing nut is arranged at the lower end of the inner electrode conductive screw extending out of the fixing plate.

5. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: An inner electrode sheet is arranged between the fixing plate and the fixing nut.

6. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: A double-through stud is provided at the upper end of the inner electrode conductive screw, and the double-through stud is provided with a screw hole set through it. The lower end of the double-through stud is screwed with the inner electrode conductive screw, and a countersunk screw is screwed on the upper end of the double-through stud. The inner circumferential wall of the inner electrode metal mesh is elastically fitted with the outer wall of the double-through stud, and an inner conductive metal spring is provided between the countersunk screw and the double-through stud.

7. The elastic single-base single-pass tube plasma generator according to claim 5, characterized in that: The fixing plate is provided with an outer electrode sheet, and the outer electrode sheet is connected with a special-shaped conductive metal spring, which elastically abuts against the outer peripheral wall of the outer electrode metal mesh and extends to the middle or lower position of the outer electrode metal mesh.

8. The elastic single-base single-pass tube plasma generator according to claim 7, characterized in that: The fixing plate is provided with a first positioning hole and a second positioning hole, wherein the first positioning hole is used for installing an inner electrode sheet, and the second positioning hole is used for installing an outer electrode sheet, wherein the outer electrode sheet is connected to a special-shaped conductive metal spring.

9. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: The inner electrode metal mesh is provided with an inner mesh aperture, and the outer electrode metal mesh is provided with an outer mesh aperture, and the ratio of the inner mesh aperture to the outer mesh aperture is 1:1 to 1:

50.

10. The elastic single-base single-pass tube plasma generator according to claim 1, characterized in that: The ratio of the length of the outer electrode metal mesh to the length of the inner conductive mesh is 1:1 to 1:5.

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