CN114243460A

CN114243460A - Charge eliminating structure suitable for ionizer, ionizer and electric appliance

Info

Publication number: CN114243460A
Application number: CN202111646022.1A
Authority: CN
Inventors: 戴鑫; 王东东; 刘广全
Original assignee: Beijing Smartmi Technology Co Ltd
Current assignee: Beijing Smartmi Technology Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-03-25

Abstract

The invention provides a charge eliminating structure suitable for an ionizer, the ionizer and an electric appliance. In this charge elimination structure suitable for ionizer, ionizer has at least a pair of high voltage discharge end, and charge elimination structure includes drive division and conduction portion, wherein: the driving part is connected with the conduction part and is used for driving the conduction part to reciprocate; the conduction part is used for simultaneously contacting all the high-voltage discharge end surfaces in the reciprocating motion process so as to enable all the high-voltage discharge ends to have the same potential. The charge eliminating structure can drive the conducting part to move through the driving part, and effectively neutralize charges accumulated on the surface of the high-voltage discharge end, so that the ionizer can continuously and normally work, and the attenuation of the ionization effect is reduced.

Description

Charge eliminating structure suitable for ionizer, ionizer and electric appliance

Technical Field

The present invention relates to the field of ionizers, and more particularly, to a charge eliminating structure suitable for an ionizer, and an electric appliance.

Background

The main working principle of the ion generator is that low voltage is boosted to high voltage through a booster circuit, so that air is ionized at a discharge end to generate a large amount of charged ions, and the charged ions have the functions of dust removal, smoke elimination, deodorization, sterilization, static electricity removal and the like, and are widely applied to scenes such as air purifiers, air conditioners, fresh air systems, hair dryers, vehicle-mounted air purifiers and the like.

The conventional ionizer, as shown in fig. 1, generally includes a bottom case 01 and a top cover 02 which can be assembled, and a high voltage discharge terminal 04 fixed to the top of the top cover 02 by a fixing portion 03.

In actual use, the concentration of ions generated by the ionizer may decrease or even no further ions are generated as the time of use continues.

Disclosure of Invention

In view of the above, the present invention provides a charge eliminating structure, an ionizer and an electric appliance suitable for the ionizer, which can help the ionizer continuously generate ions of sufficient concentration by eliminating charges accumulated on discharge terminals to maintain a normal voltage difference between the discharge terminals.

The present invention provides in a first aspect a charge eliminating structure suitable for an ionizer having at least one pair of high-voltage discharging terminals, the charge eliminating structure including a driving part and a conducting part, wherein: the driving part is connected with the conduction part and is used for driving the conduction part to reciprocate; the conduction part is used for simultaneously contacting all the surfaces of the high-voltage discharge ends in the reciprocating motion process so as to eliminate the accumulated charges of all the high-voltage discharge ends.

Optionally, the ion generator further comprises a fixing mechanism fixedly connected with the ion generator; the driving part comprises a support and an electromagnet, the support is fixedly connected with the fixing mechanism, the electromagnet comprises an electromagnet base piece and an electromagnet moving piece, the electromagnet base piece is fixedly connected with the support, and the electromagnet moving piece is used for driving the conduction part to reciprocate in a direction parallel to the high-voltage discharge end.

Optionally, the conducting part is a metal sheet, the metal sheet is fixedly connected with the electromagnet moving part, the metal sheet is static in a first state and has a safe distance with all the high-voltage discharge ends, and the metal sheet performs the reciprocating motion in a second state and can simultaneously slide and contact all the high-voltage discharge ends in the motion process.

Optionally, the metal sheet has a central interface and at least one pair of through holes, wherein: the central interface is positioned at the central position of the metal sheet and is used for being fixedly connected with the bracket; the positions of the at least one pair of through holes are symmetrical about the central interface, and the positions and the sizes of the at least one pair of through holes are matched with those of the at least one pair of high-voltage discharge ends.

Optionally, the high-voltage discharge device further comprises a protective cover, and the protective cover is arranged on the periphery of the high-voltage discharge end.

Optionally, the protective cover is a cylinder body with a hollow window.

Optionally, the method further comprises: and the timing switch module and/or the manual switch module are/is connected with the electromagnet.

In a second aspect, the present invention provides an ionizer having a pair of high voltage discharge ends, the ionizer having a charge-eliminating structure adapted for use with the ionizer as disclosed in the present invention disposed therein.

Optionally, the ionizer further comprises a bottom case, a top cover, and a circuit board, wherein: the bottom shell is fixedly connected with the fixing mechanism, and the top cover is fixedly connected with the bottom shell; the circuit board is positioned in the bottom shell and electrically connected with the high-voltage discharge end and the electromagnet.

In a third aspect, the present invention provides an electrical appliance comprising an ionizer as disclosed herein.

In consideration of the fact that the ion concentration generated by the ion generator is reduced or no ions are generated because the voltage difference between the paired high-voltage discharge ends is attenuated due to the electric charges accumulated by the pair of high-voltage discharge ends, in the technical scheme of the invention, the driving part is utilized to drive the conduction part to move, so that the conduction part can be simultaneously contacted with the surfaces of all the high-voltage discharge ends, and the electric potentials of all the high-voltage discharge ends are the same. The charge eliminating structure suitable for the ionizer has simple and convenient structure and easy realization, and can effectively eliminate the charges accumulated on the surface of the high-voltage discharge end, thereby ensuring that the ionizer can continuously and normally work and reducing the attenuation of the ionization effect.

Drawings

The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:

FIG. 1 is a schematic view of a prior art ionizer construction;

fig. 2 is a schematic view illustrating an explosion effect of an ionizer and a charge eliminating structure thereof according to an embodiment of the present invention;

FIG. 3 is a schematic view of the assembly of the parts of FIG. 2;

FIG. 4 is a schematic view of the assembly of all the components of FIG. 2;

fig. 5 is a schematic view of a metal sheet and a high-voltage discharge end according to an embodiment of the present invention.

Detailed Description

According to the charge eliminating structure suitable for the ionizer of the embodiment of the present invention, the ionizer has at least one pair of high-voltage discharging ends, and the charge eliminating structure comprises a driving part and a conducting part, wherein: the driving part is connected with the conduction part and is used for driving the conduction part to reciprocate; the conduction part is used for simultaneously contacting all the high-voltage discharge end surfaces in the reciprocating motion process so as to enable all the high-voltage discharge ends to have the same potential.

The specific form of the high-voltage discharge end is not limited in this embodiment, and alternatively, the high-voltage discharge end is a tip in the form of a probe, and generally includes a cylindrical body and a tip located on one top surface of the cylinder. In other embodiments of the present application, the high-voltage discharge end may also be in the form of a carbon brush formed by a fur brush.

In this embodiment, the driving portion may be disposed on some components inside the ionizer, or may be separately disposed inside the ionizer; conduction portion and high-pressure discharge end correspond the setting, and conduction portion is located the pointed end top of high-pressure discharge end, drive division and the relative fixed connection of conduction portion, also promptly, the drive division can drive the axial displacement of conduction portion along the high-pressure discharge end to make conduction portion can contact the high-pressure discharge end, and then make two high-pressure discharge end on the electric charge neutralization or the electric charge guide eliminate.

In this embodiment, the ion generator may be a positive and negative ion generator, a negative ion generator or a plasma generator, when the ion generator is the positive and negative ion generator or the plasma generator, the ion generator may only include a pair of high-voltage discharge ends, that is, a positive high-voltage discharge end and a negative high-voltage discharge end, and may also include a plurality of pairs of high-voltage discharge ends, the arrangement manner of the plurality of pairs of high-voltage discharge ends is not limited in this embodiment, the plurality of positive high-voltage discharge ends are arranged in one row, the plurality of negative high-voltage discharge ends are arranged in one row, and tips of the two rows of high-voltage discharge ends are arranged relatively or back on back. When the ionizer is a negative ion generator, the ionizer may also include only one pair of high-voltage discharge ends, or may include multiple pairs of high-voltage discharge ends, where the corresponding pair of high-voltage discharge ends includes a negative high-voltage discharge end and an induction end. The induction end is usually a grounding end, and when the conduction part is simultaneously contacted with the negative high-voltage discharge end and the induction end, the negative charges accumulated on the negative high-voltage discharge end are guided to the grounding end, so that the negative charges accumulated on the negative high-voltage discharge end are released and eliminated, and further, the accumulation of the charges is avoided.

When the high-voltage discharge ends are a pair of positive high-voltage discharge ends and a pair of negative high-voltage discharge ends, according to the charge elimination structure of the ionizer of the embodiment of the invention, the conduction part is driven by the driving part to move, so that the conduction part can simultaneously contact the pair of positive and negative high-voltage discharge ends to neutralize and eliminate positive and negative charges, and thus, the voltage difference between the pair of high-voltage discharge ends is recovered. The charge eliminating structure for maintaining the ionizer has simple and convenient structure, is easy to realize, and can effectively neutralize and eliminate positive charges and negative charges accumulated on the surfaces of a pair of positive and negative high-voltage discharging ends, so that the ionizer can continuously and normally work, and the attenuation of the ionization effect is reduced.

The charge eliminating structure may further include a securing mechanism for securing connection with the ionizer. The driving part comprises a bracket and an electromagnet. The bracket is fixedly connected with the fixing mechanism. The electromagnet specifically comprises an electromagnet base piece and an electromagnet moving piece, wherein the electromagnet base piece is fixedly connected with the support, so that the electromagnet base piece is fixed and static relative to the ion generator, and the electromagnet moving piece can drive the conducting part to reciprocate in a direction parallel to the high-voltage discharge end, so that the charge elimination process can be completed.

The conduction part is connected with the electromagnet moving part on one hand so as to move under the driving of the electromagnet moving part, and on the other hand, the conduction part comprises a part with a conduction function. In this embodiment, the conducting portion may be a metal sheet, and the metal sheet may be fixedly connected to the electromagnet moving member, so that the metal sheet may reciprocate along with the electromagnet moving member. In this embodiment, the specific material of the metal sheet is not limited, and may be selected as follows: silver, copper, gold, aluminum, tungsten, nickel, iron, or platinum, and more preferably iron or aluminum from the viewpoint of simple process and low cost.

The metal sheet is static under the first state (when the electromagnet does not work by electrifying), is positioned above the high-voltage discharge end, and has a safety distance (for example, more than 5mm) with the high-voltage discharge end, and the safety distance is set to avoid the over-small distance between the metal sheet and the high-voltage discharge end, so that the reduction of the discharge efficiency of the high-voltage discharge end is avoided. The metal sheet reciprocates along with the electromagnet moving piece in a second state (namely when the electromagnet is electrified to work) and can simultaneously contact at least one pair of high-voltage discharge ends in the motion process. When contact occurs, the oppositely charged charges on the paired high-voltage discharge ends are transferred to the metal sheet and then cancel each other, i.e., charge neutralization is achieved.

When the high-voltage discharge end is a high-voltage discharge end including a positive high-voltage discharge end and a negative high-voltage discharge end, the metal sheet may have a center interface and at least one pair of through holes, wherein: the central interface is located the central point of sheetmetal and puts, and central interface is used for with support fixed connection. The positions of the at least one pair of through holes are symmetrical about the central interface, and the positions and the sizes of the at least one pair of through holes are matched with those of the at least one pair of high-voltage discharge ends. In the reciprocating motion of the metal sheet, the paired through holes are symmetrical about the central interface, so that the stress is relatively balanced, and the phenomenon that the through holes on the metal sheet and the high-voltage discharge end are not aligned accurately due to deviation of the metal sheet in the motion process is avoided.

In order to prevent the high-voltage discharge end from stabbing a user, the charge eliminating structure may further include a protective cover disposed at the periphery of the high-voltage discharge end. The protective cover can be a barrel with a hollow window, so that permeability can be ensured, and ions can be smoothly diffused into the environment.

The charge cancellation structure may also include a timing switch module and/or a manual switch module connected to the electromagnet. In the case of a charge eliminating structure having only a timer switch module, the charge eliminating structure may automatically turn on and off the cleaning operation periodically, for example, once a day for one minute each time; the charge eliminating structure can flexibly and manually start cleaning operation according to the needs of users under the condition of only having a manual switch module; under the condition of both the timing switch module and the manual switch module, the charge elimination structure can realize automatic/manual dual control.

The ionizer also typically includes a bottom housing, a top cover, and a circuit board. Wherein the bottom shell is fixedly connected with the fixing mechanism, and the top cover is fixedly connected with the bottom shell. The cavity is formed after the bottom shell and the top cover are installed and combined, and the cavity can contain components such as an electromagnet and a fixing mechanism and has a protection effect. The circuit board can be located in the bottom shell and electrically connected with the high-voltage discharge end and the electromagnet. The aforementioned time switch module and/or manual switch module of the charge neutralizing mechanism may also be provided on the circuit board.

For better understanding of those skilled in the art, the following description will be made in detail with reference to fig. 2 to 4.

According to the ionizer and the charge eliminating structure thereof shown in fig. 2 to 4, the ionizer includes a pair of high voltage discharging terminals 11, a bottom case 16, a top cover 17 and a circuit board 18. The high-voltage discharge end 11 is fixed on the bottom case 16 by a fixing mechanism 15. The driving part of the charge eliminating structure mainly comprises an electromagnet 12 and a bracket 13. The conducting part of the charge eliminating structure is mainly a metal sheet 14. The electromagnet 12 specifically includes an electromagnet base member 121 and an electromagnet moving member 122. The electromagnet base part 121 is fixedly connected with the bracket 13, so that the electromagnet base part 121 and the high-voltage discharge end 11 are ensured to be relatively static. The electromagnet moving member 122 is fixedly connected to the metal sheet 14, and can drive the metal sheet 14 to reciprocate in the vertical direction to achieve charge neutralization. The metal sheet 14 has a central interface 141 at the center thereof, and a pair of through holes 142 are symmetrically disposed at both sides of the central interface 141. The central interface 141 is used for the fixed connection of the metal sheet 14 to the electromagnet movable part 122, which can be realized in particular by means of a screw and nut fit. The pair of through holes 142 are for passing the pair of high-voltage discharge ends 11 therethrough. The pair of through holes 142 are aligned with the pair of high-voltage discharge ends 11, and the aperture of the pair of through holes 142 is slightly larger than the diameter of the high-voltage discharge ends 11 so that the high-voltage discharge ends 11 can pass through smoothly. It should be noted that "slightly larger" in this embodiment may be understood as a tolerance, so that the hole on the metal sheet may receive the high-voltage discharge end to pass through on one hand, and on the other hand, it may be ensured that the metal sheet is simultaneously in contact with the high-voltage discharge end to conduct the high-voltage discharge end connected to the metal sheet.

In addition, in order to ensure that the conducting part can be sufficiently contacted with the high-voltage discharge end, the opening of the conducting part can be made into an oblique angle form optionally in the embodiment. That is, as shown in fig. 5, in the cross-sectional view, the surface of the conducting portion facing the high-voltage discharge end is an inclined surface.

The circuit board 18 is connected to the electromagnet 12. The top cover 17 is disposed above the bottom case 16. The fixed structure 15 and the bottom case 16 constitute a cavity that accommodates a circuit board 18 and the like. The fastening structure 15 also forms a cavity with the cover 17, which accommodates several components such as the electromagnet 12 and the carrier 13. The high-voltage discharge end 11 also has a protective cover 19 on its periphery, and the protective cover 19 may be fixedly disposed on the top cover 17 as shown in the figure, or other independently movable arrangement schemes may be adopted. The protective cover 19 is a cylinder with a hollow window, does not obstruct the air circulation near the high-voltage discharge end tip 11, and does not affect the ionization effect of the ionizer.

The working process of the charge eliminating structure of the ionizer is as follows: in the initial state, the electromagnet moving member 122 is stationary, and at this time, the metal sheet 14 connected to the electromagnet moving member 122 is located above the high-voltage discharge end and keeps a safe distance (greater than 5mm) from the tip of the high-voltage discharge end 11, where the safe distance is a distance where the position of the metal sheet has a small influence on the tip discharge of the high-voltage discharge end, and the safe distance is set according to different discharge powers of the high-voltage discharge end, which is not limited in this embodiment. It should be noted that the larger the safety distance is, the less the metal sheet has an influence on the point discharge of the high-voltage discharge end, but at the same time, the larger the distance is, the more the charge eliminating structure occupies a space in combination with the ionizer. Considering the influence on the point discharge and the occupied space comprehensively, in this embodiment, optionally, when the distance between the high-voltage discharge ends is 15mm to 45mm, the safety distance may be 5 mm.

When the circuit board 18 supplies power to the electromagnet 12 through the lead wire, the electromagnet moving member 122 drives the metal sheet 14 to move downward, the distance between the metal sheet 14 and the high-voltage discharge ends 11 is gradually shortened, then the pair of high-voltage discharge ends 11 gradually expose from the pair of through holes 142, at this time, the distance between the metal sheet 14 and the pair of high-voltage discharge ends 11 is almost zero, and charges of different electric properties accumulated on the pair of high-voltage discharge ends 11 can be transmitted to the metal sheet 14 and then neutralized and offset. When the circuit board 18 stops supplying power, the electromagnet moving part 122 starts to reset and move upwards, the metal sheet 14 moves upwards along with the reset, and after the complete reset, the metal sheet 14 keeps a safe distance (larger than 5mm) with the tip of the high-voltage discharge end 11. The process is circulated, namely, charge neutralization is realized, and the voltage difference of the high-voltage discharge end can be guaranteed, so that the ionizer can continuously and normally work, and the attenuation of the ionization effect is reduced. Wherein the safety distance can be ensured by limiting the length of the movement of the electromagnet movable part 122.

The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A charge eliminating structure suitable for use in an ionizer having at least one pair of high-voltage discharge ends, characterized in that the charge eliminating structure comprises a driving portion and a conducting portion, wherein:

the driving part is connected with the conduction part and is used for driving the conduction part to reciprocate;

the conduction part is used for simultaneously contacting all the surfaces of the high-voltage discharge ends in the reciprocating motion process so as to eliminate the accumulated charges of all the high-voltage discharge ends.

2. The charge eliminating structure of claim 1,

the fixing mechanism is fixedly connected with the ion generator;

the driving part comprises a support and an electromagnet, the support is fixedly connected with the fixing mechanism, the electromagnet comprises an electromagnet base piece and an electromagnet moving piece, the electromagnet base piece is fixedly connected with the support, and the electromagnet moving piece is used for driving the conduction part to reciprocate in a direction parallel to the high-voltage discharge end.

3. The charge eliminating structure as claimed in claim 2, wherein the conducting portion is a metal sheet fixedly connected to the electromagnet moving member, the metal sheet is stationary and has a safety distance from all the high voltage discharge ends in the first state, and the metal sheet performs the reciprocating motion in the second state and can simultaneously slide and contact all the high voltage discharge ends during the motion.

4. The charge cancellation structure of claim 3, wherein said metal sheet has a central interface and at least one pair of through holes, wherein:

the central interface is positioned at the central position of the metal sheet and is used for being fixedly connected with the bracket;

the positions of the at least one pair of through holes are symmetrical about the central interface, and the positions and the sizes of the at least one pair of through holes are matched with those of the at least one pair of high-voltage discharge ends.

5. The charge eliminating structure according to claim 1, further comprising a protective cover provided around the periphery of the high-voltage discharge end.

6. The charge eliminating structure of claim 5, wherein the protective cover is a cylinder with a hollow window.

7. The charge cancellation structure according to any one of claims 2 to 6, further comprising: and the timing switch module and/or the manual switch module are/is connected with the electromagnet.

8. An ionizer having a pair of high voltage discharge ends, characterized in that the charge eliminating structure for an ionizer as claimed in any one of claims 1 to 7 is provided in the ionizer.

9. The ionizer of claim 8 further comprising a bottom case, a top cover, and a circuit board, wherein:

the bottom shell is fixedly connected with the fixing mechanism, and the top cover is fixedly connected with the bottom shell;

the circuit board is positioned in the bottom shell and electrically connected with the high-voltage discharge end and the electromagnet.

10. An electrical appliance comprising an ionizer according to claim 8 or 9.