CN107809063B

CN107809063B - Parallel multi-stage ion air supply device

Info

Publication number: CN107809063B
Application number: CN201610812559.3A
Authority: CN
Inventors: 唐井峰; 马壮; 张立臣; 王永涛; 李健; 王文杰; 王晶晶; 唐林强
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2016-09-09
Filing date: 2016-09-09
Publication date: 2021-04-27
Anticipated expiration: 2036-09-09
Also published as: CN107809063A

Abstract

The invention provides a parallel multistage ion air supply device. The parallel multi-stage ion air supply device comprises multi-stage discharge modules which are sequentially arranged and distributed; the discharge module comprises a discharge needle, a metal net and a needle frame, the discharge needle is arranged on the needle frame, and the discharge needle is positioned between the metal net and the needle frame; the multi-stage discharge modules are connected in parallel; the projection point of the nth-level needle tip projected from the nth-level discharge needle to the (n + 1) th-level metal mesh and the projection point of the (n + 1) th-level needle tip projected from the (n + 1) th-level discharge needle to the (n + 1) th-level metal mesh are distributed in a staggered manner. The air supply speed, the air supply amount and the air supply efficiency of the ion air supply module are improved. The air supply speed, the air supply amount and the air supply efficiency of the ion air supply module are improved.

Description

Parallel multi-stage ion air supply device

Technical Field

The invention relates to the technical field of ion air supply, in particular to a parallel multi-stage ion air supply device.

Background

At present, the corona discharge ion air supply technology is taken as a unique air supply system, has the advantages of simple structure, no noise, air purification effect and the like, becomes a technology with great market potential and good application prospect, and becomes a hot research direction of researchers at home and abroad. The generation of ionic wind in the prior art is derived from the corona discharge principle: due to the action of high voltage, the electric field intensity near the needle electrode is extremely high, so that a large number of air molecules in the area are ionized, and the electric field outside the area is weak, so that the ionization process is not generated. Under the action of the electric field, the charged particles move directionally and collide with uncharged neutral particles in the movement process, and part of kinetic energy is transferred to the neutral particles, so that the neutral particles move directionally together, namely, ion wind is generated. In the practical use process, a multi-stage ion wind acceleration mode is usually adopted for obtaining a larger wind speed, however, due to structural limitation, after the ion wind generated by the upper-stage electric field moves to the lower-stage electric field, a certain wind resistance is generated due to the influence of the structure of the lower-stage electric field, and due to the influence of nonuniform electric field distribution, the wind speed of the finally output ion wind is nonuniform. The invention aims to solve the technical problem of how to design a technology capable of realizing uniform air supply and improving the air speed of ion air supply.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the parallel multistage ion air supply device is provided, and the air supply speed, the air supply quantity and the air supply efficiency of the parallel multistage ion air supply device are improved.

The technical scheme provided by the invention is that the discharge module comprises a plurality of stages of discharge modules which are sequentially arranged and distributed; the discharge module comprises a discharge needle, a metal net and a needle frame, the discharge needle is arranged on the needle frame, and the discharge needle is positioned between the metal net and the needle frame; the multi-stage discharge modules are connected in parallel; the nth grade needle point projection point of the discharge needle projected to the nth grade +1 metal mesh and the nth +1 grade needle point projection point of the discharge needle projected to the nth +1 grade metal mesh are distributed in a staggered mode; wherein n is a natural number greater than 0.

According to the parallel multi-stage ion air supply device provided by the invention, the multi-stage discharge modules are arranged side by side and are sequentially designed in parallel, and a corona discharge phenomenon is generated between the discharge needle in each discharge module and the corresponding metal mesh, so that the air can be accelerated for multiple times through the multi-stage discharge modules, the superposition of the air speed can be realized, the negative pressure can be formed under the action of high-speed air outlet under the condition of obtaining higher air outlet speed, and the air inlet amount is further increased; and, to two adjacent discharge modules, the position of arranging of discharge needle and the position of arranging of next level discharge needle in the last level discharge module misplace in the projection direction and distribute, thereby in corona discharge process, the air current that the last level accelerated to form is hindered less by next level discharge needle and is produced the influence, simultaneously, the next level of discharge carries out corona discharge once more to the slower part of the air current velocity of flow that the last level formed and accelerates, finally, make the wind speed of ion air supply more even, and in multistage acceleration process, the resistance influence that the discharge of next level produced to the air current on the one hand is less, on the other hand air current carries out corona discharge in turn in each position department of space section and accelerates, with the more distribution of favourable realization wind speed is even, realize improving the air supply speed of multistage ion air supply module, air output and air supply efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a parallel multi-stage ion blower according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the parallel multi-stage ion blower of the present invention;

FIG. 3 is a schematic circuit diagram of a parallel multi-stage ion blower according to an embodiment of the present invention;

FIG. 4 is a first layout view of the parallel multi-stage ion blower according to the embodiment of the present invention;

FIG. 5 is a second layout view of the parallel multi-stage ion blower according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the parallel multi-stage ion air supply device of the present embodiment includes a multi-stage discharge module 100, which is multi-stage, the discharge module 100 is sequentially arranged and distributed, and the discharge module 100 is multi-stage and connected in parallel to form an ion air supply mode of a multi-stage structure, the discharge module 100 at the head generates ion air formed by corona discharge and enters the next-stage discharge module 100 to continuously accelerate corona discharge, and finally, the ion air is output from the discharge module 100 at the tail and accelerated by multi-stage corona discharge, so as to realize the superposition of speed, and obtain the air supply speed for telling. For the parallel connection mode of the multi-stage discharge module 100, the multi-stage positive electrode components can be connected together, and the multi-stage negative electrode components can be connected together to realize the parallel connection of the multi-stage discharge module 100, and the parallel connection type multi-stage ion air supply device of the embodiment does not limit the parallel connection mode of the discharge module 100.

For a single discharge module 100, the discharge module 100 includes a plurality of discharge needles 1, a metal mesh 2 and a needle frame 3, wherein the plurality of discharge needles 1 are arranged on the needle frame 3 and are located on one side of the metal mesh 2 in an array; the distance between the needle points of the discharge needles 1 and the metal mesh 2 is in the range of (0.7-1.3) L, and the distance between the needle points of two adjacent discharge needles is in the range of (0.7-1.3) r. Wherein L is the maximum wind speed V of the ion wind generated by the wind speed central point of the metal net 2_maxThe distance value between the discharge needle 1 and the metal net 2 under the condition, and the wind speed central point is the projection point position of the needle tip of the discharge needle 1 on the metal net 2; r is the distance from the wind speed center to the wind speed measurement point outside the wind speed center, and the wind speed V at the wind speed measurement point_r=aV_max，a=0.3-0.7。

In addition, for two adjacent discharge modules 100, as shown in fig. 4 and 5, the projection points of the upper stage needle tip of the upper stage discharge needle 1' projected to the lower stage metal mesh 2 and the projection points of the lower stage discharge needle 1 ″ projected to the lower stage needle tip of the lower stage metal mesh 2 are distributed in a staggered manner. Specifically, after the corona discharge of the upper stage discharge needle 1 ' accelerates the air, the accelerated air advances towards the lower stage discharge needle 1 ″ and the air flow speed corresponding to the needle point of the upper stage discharge needle 1 ' is faster than the air flow speed at the periphery of the needle point, the air flow corresponding to the needle point of the upper stage discharge needle 1 ' will avoid the lower stage discharge needle 1 ″ so as to reduce the deceleration influence of the lower stage discharge needle 1 ″ on the air flow accelerated by the upper stage discharge needle 1 ', and meanwhile, the lower stage discharge needle 1 ″ will accelerate the corona discharge of the air flowing through, so that the air flow speed corresponding to the periphery of the needle point of the upper stage discharge needle 1 ' is accelerated, and thus the ion wind with uniform flow speed can be obtained. Preferably, the corresponding projection points of the next-stage discharge needles 1 "are distributed in a triangle a formed by the projection points of the three adjacent previous-stage discharge needles 1 ', as shown in fig. 4, the effective ion wind range formed by each previous-stage discharge needle 1' is the range covered by the B circle, and the effective ion wind range formed by each next-stage discharge needle 1" is the range covered by the C circle, so that the finally output ion wind is more uniform in the spatial range. And the center, the gravity center, the orthocenter, the outer center or the inner center of a triangle formed by the projection points of the three adjacent upper-stage discharge needles 1 'are distributed with the corresponding projection points of the lower-stage discharge needles 1'.

The discharge needles 1 and the metal mesh 2 in the ion air supply module of this embodiment are laid out by the following method:

step 1, wind speed testing: on the premise that the voltage value between the discharge needle 1 and the metal mesh 2 is not changed, the distance between a single discharge needle 1 and the metal mesh 2 is adjusted to enable the wind speed of the ion wind at the wind speed central point of the metal mesh 2 to be maximum, and the maximum wind speed V is measured_maxUnder the condition, the distance value L between the needle point of the discharge needle 1 and the metal mesh 2 is obtained; the wind speed central point is a projection point position of the needle point of the discharge needle 1 on the metal mesh 2. In particular between the discharge needle 1 and the metal mesh 2On the premise that the voltage value is not changed, the position relation between the discharge needle 1 and the metal mesh 2 can be determined by the wind speed measuring instrument under the condition that the maximum wind speed at the wind speed central point of the metal mesh 2 is determined through adjusting the distance between the discharge needle 1 and the metal mesh 2, so that the optimal distance is obtained, and the wind speed of the ion wind generated by the single discharge needle 1 is maximum. The values of L and r are influenced by factors such as the material of the discharge needle 1, the curvature radius of the needle tip and the length of the discharge needle 1, and the values of L and r are different for different types of discharge needles 1.

Step 2, measuring the projection radius: measuring the wind speed V deviating from the wind speed central point_rWhen V is_r=aV_maxMeasuring the distance between a wind speed measuring point and the wind speed central point as r; wherein, a = 0.3-0.7. Specifically, in order to avoid the mutual cancellation of wind speeds caused by too close distances between adjacent discharge needles 1 and to avoid the reduction of wind volume and the uneven distribution of wind volume caused by too far distances between discharge needles 1, the wind speed V at a position deviated from the wind speed central point is measured_rAt the current wind speed V_r=aV_maxWhen the distance between the wind speed measuring point and the wind speed central point is measured, the effective wind speed area of the ion wind generated by the metal mesh 2 can be determined.

Step 3, needle net layout: the distance between the needle points of the discharge needles 1 and the metal mesh 2 is set within the range of (0.7-1.3) L, and the distance between the needle points of two adjacent discharge needles 1 is within the range of (0.7-1.3) r. Specifically, after values of L and r are determined according to

steps

1 and 2, the position relationship between the discharge needles 1 and the metal mesh 2 and the position relationship between the discharge needles 1 can be reasonably arranged, the distance between the discharge needles 1 and the metal mesh 2 is set within the range of (0.7-1.3) L, so that the ion wind with a larger wind speed can be generated between a single discharge needle 1 and the metal mesh 2, and the distance between the needle points of two adjacent discharge needles 1 is (0.7-1.3) r, so that on one hand, the phenomenon that the ion wind is offset due to too close distance between the two adjacent discharge needles 1 is avoided, on the other hand, the region where the discharge needles 1 generate effective ion wind in the metal mesh 2 can be partially overlapped to achieve the projection effect of the shadowless lamp, and the ion wind distribution of the metal mesh 2 is ensured to be more uniform. The discharge needles 1 are parallel to each other, and three adjacent discharge needles are arranged in a regular triangle, so that the ion wind generated by the metal mesh 2 is uniformly distributed, the needle points of the discharge needles 1 are located in the same plane, the plane formed by the metal mesh 2 is parallel to the plane formed by the needle points of the discharge needles 1, and the discharge needles are perpendicular to the plane formed by the metal mesh, so that the intensity of the ion wind generated between each discharge needle 1 and the metal mesh 2 is the same. Preferably, the distance between the needlepoints of the discharge needles 1 and the metal mesh 2 is L, and the distance between the needlepoints of two adjacent discharge needles 1 is r.

According to the parallel type multistage ion air supply device provided by the invention, the spatial positions of the discharge needles and the metal mesh are reasonably designed, and meanwhile, the position relation between the discharge needles is reasonably distributed, so that the distance between the discharge needles and the metal mesh can generate larger air speed, meanwhile, the discharge needles arranged in an array can be matched with the area direction of the metal mesh, the purpose that more uniform and larger air volume of ion air can be obtained by matching reasonable quantity of discharge needles with the metal mesh with a specific area is realized, and the air supply speed, the air supply volume and the air supply efficiency of the ion air supply module are improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A parallel multi-stage ion air supply device is characterized by comprising multi-stage discharge modules, wherein the multi-stage discharge modules are sequentially arranged and distributed; the discharge module comprises a discharge needle, a metal net and a needle frame, the discharge needle is arranged on the needle frame, and the discharge needle is positioned between the metal net and the needle frame; the multi-stage discharge modules are connected in parallel; the nth grade needle point projection point of the discharge needle projected to the nth grade +1 metal mesh and the nth +1 grade needle point projection point of the discharge needle projected to the nth +1 grade metal mesh are distributed in a staggered mode; wherein n is a natural number greater than 0;

in the same discharge module, the distance between the needle points of the discharge needles and the metal mesh is set in the range of (0.7-1.3) L, and the distance between the needle points of two adjacent discharge needles is in the range of (0.7-1.3) r;

on the premise that the voltage value between the discharge needle and the metal mesh is not changed, the distance between a single discharge needle and the metal mesh is adjusted so that the distance between the needle point of the discharge needle and the metal mesh is L when the ion wind at the position of the wind speed center point of the metal mesh is the maximum wind speed Vmax; the wind speed central point is a projection point position of the needle point of the discharge needle on the metal mesh; the wind speed at the position deviated from the wind speed central point by the distance r is Vr, Vr = aVmax, and a = 0.3-0.7;

the discharge needles are parallel to each other, three adjacent discharge needles are arranged in a regular triangle, the needle points of the discharge needles are located in the same plane, the plane formed by the metal mesh is parallel to the plane formed by the needle points of the discharge needles, the discharge needles are perpendicular to the plane formed by the metal mesh, and the areas of the discharge needles, which generate effective ion wind, in the metal mesh can be partially overlapped to achieve the projection effect of the shadowless lamp;

in addition, the corresponding n + 1-level needle point projection points are distributed in a triangle formed by three adjacent n-level needle point projection points.

2. A parallel multi-stage ion air supply arrangement according to claim 1, wherein the center, center of gravity, orthocenter, eccentricities or centroids of a triangle formed by three adjacent nth stage needle point projection points are distributed with corresponding (n + 1) th stage needle point projection points.

3. A parallel multi-stage ion air supply arrangement according to claim 1, wherein a plurality of said needle racks are connected together and a plurality of said metal meshes are connected together.

4. A parallel multi-stage ion air supply arrangement according to claim 1, wherein a plurality of said discharge needles are arranged in an array on said needle holder.

5. A parallel multi-stage ion air supply arrangement according to claim 1, wherein the distance between the tips of the discharge needles and the metal mesh is L, and the distance between the tips of two adjacent discharge needles is r.