CN107809060B - Ion wind generating device and air conditioner indoor unit - Google Patents
Ion wind generating device and air conditioner indoor unit Download PDFInfo
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- CN107809060B CN107809060B CN201710931217.8A CN201710931217A CN107809060B CN 107809060 B CN107809060 B CN 107809060B CN 201710931217 A CN201710931217 A CN 201710931217A CN 107809060 B CN107809060 B CN 107809060B
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 14
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- 150000002500 ions Chemical class 0.000 description 54
- 238000007664 blowing Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 14
- 238000004378 air conditioning Methods 0.000 description 9
- 230000005684 electric field Effects 0.000 description 4
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
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- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000180177 Listrocephalos corona Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
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Abstract
The invention relates to an ion wind generating device and an air conditioner indoor unit. Ion wind generating device is including being used for producing at least one discharge module of ion wind, and every discharge module all includes: the mesh electrode is arranged perpendicular to the air supply direction of the ion wind generating device; and at least one electrode stringer which is arranged on one side of the mesh electrode in parallel with the mesh electrode, each electrode stringer is provided with a plurality of pinholes, a needle-shaped electrode is arranged in each pinhole, and the needle point of the needle-shaped electrode points to the mesh electrode. The periphery of each pinhole is provided with a lotus-shaped locking structure protruding out of the electrode stringer, the peripheral wall of the lotus-shaped locking structure is arranged discontinuously, and the lotus-shaped locking structure gradually shrinks and closes from the surface of the electrode stringer to the direction close to the mesh electrode until an opening with a preset size is formed at the top end of the lotus-shaped locking structure, so that the needle-shaped electrode can be detachably clamped into the lotus-shaped locking structure and inserted into the pinhole. The indoor unit of the air conditioner comprises a machine shell and at least one ion wind generating device.
Description
Technical Field
The present invention relates to air conditioning technology, and more particularly, to an ion wind generating device and an air conditioner indoor unit having the same.
Background
As a unique air supply system, the corona discharge ion air supply technology 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 for researchers at home and abroad. The generation of ionic wind is derived from the corona discharge principle: after a certain high voltage is applied between the needle electrode (i.e. corona electrode) and the receiving electrode (i.e. mesh electrode), forward corona discharge is generated, gas near the needle point of the needle electrode is ionized to form ions in hundreds of millions, air molecules or dust particles are combined to charge the ions, and the ions are quickly attracted by the receiving electrode under the action of a high-voltage electric field, keep inertia and continue to move to form beneficial ion wind.
The connection mode of the discharge needles of the existing ion wind generation module and the electrode stringers where the discharge needles are located generally adopts glue injection or point tin welding and the like, so that the requirement of needle mesh ionization can be realized in the structural layout. However, the discharge needle is worn or burned out due to discharge, sparking and other phenomena caused by high-voltage ionization, and the utilization rate of converting electric energy into kinetic energy is lowered. If according to the fixed mode before, the technological degree of difficulty of changing the discharge needle that damages is great, and the cost is higher, and is little to realizing that the product is on the market and popularizing the meaning. In addition, the diameter of the discharge needle is too small, so that the coaxiality of the discharge needle and a stringer hole is difficult to ensure during glue injection and spot tin welding.
Disclosure of Invention
It is an object of a first aspect of the present invention to overcome at least one of the disadvantages of the prior art and to provide an ion wind generating apparatus with needle electrodes which are easy to mount and dismount.
It is another object of the first aspect of the present invention to improve the smoothness of the needle electrode mounting and dismounting process.
It is a further object of the first aspect of the invention to accurately position the needle electrode.
A second object of the present invention is to provide an air conditioning indoor unit having good performance and low noise.
According to a first aspect of the present invention, there is provided an ion wind generating device comprising at least one discharge module for generating an ion wind, each of the discharge modules comprising:
the mesh electrode is arranged perpendicular to the air supply direction of the ion wind generating device; and
the electrode stringers are arranged on one side of the mesh electrode in parallel with the mesh electrode, each electrode stringer is provided with a plurality of needle holes, each needle hole is internally provided with a needle-shaped electrode, and the needle point of the needle-shaped electrode points to the mesh electrode; wherein
The periphery of each pinhole is provided with a lotus-shaped locking structure protruding out of the electrode stringer, the periphery wall of the lotus-shaped locking structure is arranged discontinuously, and the lotus-shaped locking structure is gradually contracted and closed from the surface of the electrode stringer to the direction close to the mesh electrode until an opening with a preset size is formed at the top end of the lotus-shaped locking structure, so that the needle-shaped electrode can be detachably clamped into the lotus-shaped locking structure and inserted into the pinhole.
Optionally, the lotus-shaped locking structure includes a plurality of locking plates arranged at intervals, the locking plates are uniformly distributed on the same hollow hemisphere, and a center of the hemisphere and a center of the pinhole are located on the same straight line perpendicular to the electrode stringer, so that the needle-shaped electrode inserted into the pinhole is concentric with the pinhole.
Optionally, the number of the locking plates is four, and the four locking plates are opposite to each other in pairs and are symmetrically arranged.
Optionally, the cross section of the opening is circular, and the diameter of the opening is selected to enable the ratio of the diameter of the opening to the diameter of the pinhole to be any proportional value in the range of 0.7-0.8.
Optionally, the number of the electrode stringers is multiple, and the multiple electrode stringers are sequentially arranged and connected in sequence along the same direction; and is
The vertical distances between the plurality of electrode stringers and the mesh electrode are sequentially increased or sequentially decreased such that the plurality of electrode stringers are arranged in a stepwise manner at one side of the mesh electrode.
Optionally, an additional electrode plate is disposed on a side of each electrode beam facing the mesh electrode, and voltages are applied between the mesh electrode and the electrode beam and between the mesh electrode and the additional electrode plate, where the voltage between the mesh electrode and the electrode beam is much larger than the voltage between the mesh electrode and the additional electrode plate.
Optionally, the mesh electrode has a plurality of circular mesh holes, and the tip of each needle electrode points to the center of a corresponding one of the mesh holes of the mesh electrode; and is
The ratio of the vertical distance between the needle point of the needle-shaped electrode and the mesh electrode to the diameter of the mesh is any proportional value within the range of 0.1-0.3.
Optionally, the plurality of needle electrodes of each electrode stringer are arranged in a plurality of rows and columns on the electrode stringer; and is
In every two adjacent rows of needle electrodes, every three adjacent non-collinear needle electrodes are arranged into an isosceles triangle; in every two adjacent rows of needle electrodes, every three adjacent non-collinear needle electrodes are arranged into an isosceles triangle.
According to a second aspect of the present invention, there is provided an air conditioning indoor unit comprising:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with at least one air supply outlet for flowing out of air supply flow, and one or more air supply outlets in the at least one air supply outlet are provided with an opening and closing mechanism for rectifying air supply; and
at least one ion wind generating device is arranged in the shell and used for providing ion wind to one or more air supply outlets in the at least one air supply outlet.
Alternatively, the air blowing port having the opening and closing mechanisms may be circular, and each of the opening and closing mechanisms may include:
a central baffle fixedly arranged at the center of the corresponding air supply outlet, and an air outlet area is formed between the outer periphery of the central baffle and the inner periphery of the corresponding air supply outlet; and
the plurality of curved blades are sequentially arranged along the circumferential direction of the central baffle, are configured to be gathered towards the center of the central baffle so as to at least partially open the air outlet area, and are configured to be unfolded towards the direction away from the center of the central baffle so as to at least partially close the air outlet area.
The lotus-shaped locking structure is detachably inserted into the lotus-shaped locking structure by specially designing the lotus-shaped locking structure around each pinhole of the electrode stringer of the ion wind generating device and specially designing the specific structure of the lotus-shaped locking structure. Therefore, the needle electrode can be clamped through the lotus-shaped locking structure and positioned and fixed, the installation operation of the needle electrode is simplified, and meanwhile, when the needle electrode needs to be replaced, the needle electrode only needs to be directly pulled out, and the disassembly operation of the needle electrode is simplified.
Furthermore, the peripheral wall of the lotus-shaped locking structure is arranged discontinuously, namely discontinuous, compared with other locking mechanisms with continuous peripheral walls, the lotus-shaped locking structure has stronger deformability and is not easy to break, and the smoothness of inserting and pulling the needle-shaped electrode by a user is improved.
Furthermore, as the locking plates of the lotus type locking structure are uniformly distributed on the same hollow hemisphere, the center of the hemisphere and the center of the needle hole are positioned on the same straight line perpendicular to the electrode stringer, the needle-shaped electrode inserted into the needle hole can be concentric with the needle hole, and the precise positioning of the needle-shaped electrode is ensured through the locking plates, so that the needle point of the needle-shaped electrode is ensured to generate a better discharge effect, and further more ion wind is generated.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
figure 1 is a schematic top view of an ionic wind generating device according to one embodiment of the present invention,
FIG. 2 is a schematic elevational view of an electrode stringer in accordance with one embodiment of the invention;
FIG. 3 is a schematic enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along section line B-B in FIG. 2;
fig. 5 is a schematic enlarged view of a portion C in fig. 4;
FIG. 6 is a schematic block diagram of a needle electrode and a mesh electrode in accordance with one embodiment of the present invention;
fig. 7 to 11 are schematic diagrams of simulation results of an ion wind generating apparatus according to an embodiment of the present invention;
fig. 12 is a schematic perspective view of a discharge module according to another embodiment of the present invention;
fig. 13 is a schematic perspective view of a discharge module according to still another embodiment of the present invention;
fig. 14 is a schematic structural exploded view of an air conditioning indoor unit according to an embodiment of the present invention;
fig. 15 and 16 are schematic structural views of different orientations of the curved blade of the opening and closing mechanism according to one embodiment of the present invention, respectively.
Detailed Description
First, an ion wind generating device is provided in an embodiment of the present invention, and fig. 1 is a schematic top view of an ion wind generating device according to an embodiment of the present invention, the ion wind generating device 10 of the present invention includes at least one discharge module 100 for generating ion wind, and the number of the discharge modules 100 may be one, two, or more than two. In the embodiment shown in fig. 1, the ion wind generating device 10 includes three discharge modules 100 arranged in sequence along the air blowing direction thereof. Each discharge module 100 includes a mesh electrode 110 and at least one electrode beam 120. The mesh electrode 110 is arranged perpendicular to the air blowing direction (see arrow P in fig. 1) of the ion wind generating device 10, and the at least one electrode beam 120 is provided on one side of the mesh electrode 110 in parallel with the mesh electrode 110. Specifically, the at least one electrode beam 120 may be disposed on the upstream side of the mesh electrode 110 in the air blowing direction of the ion wind generating device 10. Each electrode stringer 120 lies in a plane parallel to the mesh electrode 110.
Fig. 2 is a schematic front view of an electrode stringer according to one embodiment of the present invention, fig. 3 is a schematic enlarged view of portion a in fig. 2, fig. 4 is a schematic cross-sectional view taken along section line B-B in fig. 2, and fig. 5 is a schematic enlarged view of portion C in fig. 4. Furthermore, each electrode stringer 120 is provided with a plurality of pinholes 122, each pinhole 122 is provided with a needle-shaped electrode 121, and the tip of the needle-shaped electrode 121 points to the mesh-shaped electrode 110. Specifically, a lotus-shaped locking structure 123 protruding from the electrode beam 120 is disposed around each pinhole 122, the circumferential wall of the lotus-shaped locking structure 123 is disposed discontinuously, and gradually shrinks and closes from the surface of the electrode beam 120 toward the mesh-shaped electrode 110 until an opening 1231 with a predetermined size is formed at the top end of the lotus-shaped locking structure 123 (i.e., the lotus-shaped locking structure 123 is substantially in a lotus shape that is not fully opened), so that the needle-shaped electrode 121 can be detachably clamped into the lotus-shaped locking structure 123 and inserted into the pinhole 122.
Therefore, the needle electrode 121 can be clamped tightly through the lotus-shaped locking structure 123, so that the needle electrode 121 is positioned and fixed, the installation operation of the needle electrode 121 is simplified, meanwhile, when the needle electrode 121 needs to be replaced, the needle electrode is only required to be directly pulled out, and the disassembly operation of the needle electrode is simplified. Further, the peripheral wall of the lotus-shaped locking structure 123 is discontinuous, and compared with other locking mechanisms with continuous peripheral walls, the lotus-shaped locking structure 123 has stronger deformability and is less prone to breaking, and the smoothness of inserting and pulling the needle electrode 121 by a user is improved.
In some embodiments of the present invention, the lotus-shaped locking structure 123 may include a plurality of locking pieces 1232 disposed at intervals, and the locking pieces 1232 are uniformly distributed on the same hollow hemisphere, so as to ensure that the locking force applied to the needle electrode 121 from the lotus-shaped locking structure 123 is more balanced, thereby preventing the needle electrode 121 from tilting. At the same time, each locking tab 1232 can be made with a thickness to provide a suitable locking force and to facilitate deformation when subjected to external forces such as squeezing.
Further, the center of the hemisphere and the center of the pinhole 122 are located on the same straight line perpendicular to the electrode beam 120, so that the needle electrode 121 inserted into the pinhole 122 is concentric with the pinhole 122, and the needle electrode 121 is accurately positioned by the locking plates 1232, so that the needle point of the needle electrode 121 is ensured to generate a better discharge effect, more ions are generated, and the high-voltage ionization efficiency of the ion wind generating device 10 is improved.
In order to avoid the excessive number of locking pieces 1232 causing the needle electrode 121 to be hardly deformed and increasing the difficulty of mounting and dismounting, the number of locking pieces 1232 is selected to be four in a preferred embodiment. Moreover, the four locking plates 1232 are arranged symmetrically and oppositely, so that the locking action of the needle-shaped electrode 121 can be more balanced and stable by using fewer locking plates 1232.
In some embodiments of the present invention, the cross-section of the opening 1231 is circular, and the diameter of the opening 1231 is selected such that the ratio to the diameter of the pinhole 122 is any ratio in the range of 0.7 to 0.8. For example, the ratio between the diameter of the opening 1231 and the diameter of the pinhole 122 may be 0.70, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79, 0.80. Therefore, after the needle electrode 121 is clamped into the lotus-shaped locking structure 123, the plurality of locking plates 1232 can generate a proper clamping effect on the needle electrode 121, and the phenomenon that the clamping force is too large or the locking plates 1232 are irreversibly deformed or even broken due to too small openings 1231 is avoided. Preferably, the best results are obtained when the ratio between the diameter of the opening 1231 and the diameter of the pinhole 122 is 0.75.
It should be emphasized that the opening 1231 of the present invention means the opening at the top of the lotus-shaped locking structure 123 when the needle electrode 121 is not inserted into the lotus-shaped locking structure 123.
In some embodiments of the present invention, the top end of each locking tab 1232 has a curved surface 1232a facing the opening 1231 and extending in a direction perpendicular to the electrode stringer 120, the curved surfaces of the plurality of locking tabs 1232 are on the side of the same cylinder, and the opening 1231 is a cylindrical opening collectively defined by the curved surfaces of the plurality of locking tabs 1232.
In some embodiments of the present invention, the number of the electrode stringers 120 is plural, and the plural electrode stringers 120 are sequentially arranged in the same direction. It is emphasized that references to a plurality in embodiments of the present invention mean two, three or more than three. The plurality of electrode stringers 120 are all the same vertical distance from the showerhead electrode 110, i.e., the plurality of electrode stringers 120 are in the same plane.
Fig. 6 is a schematic structural view of a needle electrode and a mesh electrode according to an embodiment of the present invention, the mesh electrode 110 has a plurality of circular mesh holes 111, and a tip of each needle electrode 121 is directed to a center of a corresponding one of the mesh holes 111 of the mesh electrode 110.
As a result of intensive studies on the ion wind generating device 10, the designer of the present invention finds that the wind speed of the ion wind generating device 10 is related to various parameters, mainly including the length l of the needle electrode 121, the diameter D of the non-needle-tip portion of the needle electrode 121, the vertical distance G between the needle tip of the needle electrode 121 and the mesh electrode 110, the mesh diameter D of the mesh electrode 110, the ratio between the vertical distance between the needle tip of the needle electrode 121 and the mesh electrode 110 and the mesh diameter of the mesh electrode 110, and the like. The ratio of the vertical distance between the needle tip of the needle electrode 121 and the mesh electrode 110 to the mesh diameter of the mesh electrode 110 is particularly important.
Therefore, the ion wind generating device 10 is tested for multiple times under multiple different high pressures, the test results and the problems in the test are summarized and analyzed, and finally, the ratio of the vertical distance between the needle point of the needle-shaped electrode 121 and the mesh electrode 110 to the diameter of the mesh 111 of the mesh electrode 110 is particularly designed to be any ratio value within the range of 0.1-0.3, so that the air outlet speed of the ion wind generating device 10 is high, and a good air outlet effect is obtained. For example, the ratio of the perpendicular distance of the tip of the needle electrode 121 from the mesh electrode 110 to the diameter of the mesh 111 may be 0.10, 0.15, 0.20, 0.25, or 0.30.
Fig. 7 to 11 are schematic diagrams of simulation results of the ion wind generating apparatus according to an embodiment of the present invention. Specifically, U in fig. 7 to 11aveThe maximum average wind speed at the wind outlet of the ion wind generating device 10 is shown, and G/D in fig. 7 represents the ratio of the vertical distance from the needle tip of the needle electrode 121 to the mesh electrode 110 to the diameter of the mesh 111. FIG. 7 shows the ratio G/D between the vertical distance G from the tip of the needle electrode 121 to the mesh electrode 110 and the diameter D of the mesh 111, and the maximum average outlet air speed U of the outlet of the ion wind generating device 10, when the diameter D of the mesh 111 takes five different valuesaveThe relationship between them. It can be found from the analysis of the figure that when the ratio G/D is in the range of 0.1-0.3, the maximum average air outlet speed U of the air outlet isaveThe value of (d) is higher. When the ratio G/D is more than 0.3, all the expressions show the maximum average air outlet speed U of the air outletaveThe size segments all fall off rapidly. Therefore, when the ratio G/D is within the range of 0.1-0.3, the ion wind generating device 10 can obtain a higher wind outlet speed.
Furthermore, when the ratio of the vertical distance between the needle tip of the needle electrode 121 and the mesh electrode 110 to the diameter of the mesh 111 is any ratio value in the range of 0.2 to 0.3, the effect is best, that is, the maximum average air outlet speed U of the air outlet is the maximum average air outlet speedaveThe highest value of (a).
D in fig. 8 represents the diameter of the mesh 111 and V represents the voltage applied between the mesh electrode 110 and the electrode stringer 120. FIG. 8 shows the diameter of the mesh 111 and the maximum average outlet air speed U of the ion wind generating device 10 when the voltage between the mesh electrode 110 and the electrode beam 120 takes five different voltage valuesaveThe relationship between them. As can be seen from the analysis in FIG. 8, when the diameter D of the mesh 111 is any length ranging from 20mm to 30mm, the maximum average outlet air speed U of the outlet is determinedaveThe value of (d) is higher. When the diameter D of the mesh 111 is less than 20mm, all the air outlets represent the maximum average air outlet speed UaveThe size segments all rise rapidly. Therefore, in some embodiments of the present invention, the diameter D of the mesh 111 is preferably any length value ranging from 20 to 30 mm. For example, the mesh 111 diameter D may be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, or 30 mm.
Further, referring to fig. 8, the effect is best when the diameter D of the mesh 111 is 25 mm.
In fig. 9, G indicates the vertical distance of the tip of the needle electrode 121 from the mesh electrode 110, and V indicates the voltage applied between the mesh electrode 110 and the electrode beam 120. Fig. 9 shows the vertical distance G between the tip of the needle electrode 121 and the mesh electrode 110 and the maximum average outlet air speed U of the outlet of the ion wind generating device 10 when the voltage between the mesh electrode 110 and the electrode beam 120 takes five different voltage valuesaveThe relationship between them. As can be seen from the analysis of FIG. 9, when the vertical distance G between the tip of the needle electrode 121 and the mesh electrode 110 is in the range of 2-6 mmWhen the value is in, the maximum average air outlet speed U of the air outletaveThe value of (d) is higher. Therefore, in some embodiments of the present invention, the vertical distance G between the tip of the needle electrode 121 and the mesh electrode 110 is preferably any length value in the range of 2-6 mm. For example, the vertical distance G of the tip of the needle electrode 121 from the mesh electrode 110 may be 2mm, 3mm, 4mm, 5mm, or 6 mm.
Further, referring to fig. 9, the effect is best when the vertical distance G of the tip of the needle electrode 121 from the mesh electrode 110 is 3 mm.
In fig. 10,/, denotes the length of the needle electrode 121, and V denotes the voltage applied between the mesh electrode 110 and the electrode beam 120. Fig. 10 shows the length l of the needle electrode 121 and the maximum average outlet air speed U of the outlet of the ion wind generating device 10 when the voltage between the mesh electrode 110 and the electrode beam 120 takes five different voltage valuesaveThe relationship between them. As can be seen from the analysis of FIG. 10, when the length l of the needle electrode 121 is any length value within the range of 2-6 mm, the maximum average outlet air speed U of the outlet is reachedaveThe value of (d) is higher. Therefore, in some embodiments of the present invention, the length l of the needle electrode 121 is preferably any length value in the range of 2 to 6 mm. For example, the length l of the needle electrode 121 may be 2mm, 3mm, 4mm, 5mm, or 6 mm.
Further, referring to fig. 10, the effect is best when the length l of the needle electrode 121 is 3 mm.
D in fig. 11 represents the diameter of the section of the needle electrode 121 connected to its tip, and V represents the voltage applied between the mesh electrode 110 and the electrode beam 120. Fig. 11 shows that when the voltage between the mesh electrode 110 and the electrode beam 120 takes five different voltage values, the diameter d of the section of the needle electrode 121 connected to the tip thereof and the maximum average outlet air speed U of the outlet of the ion wind generating device 10 areaveThe relationship between them. From the analysis in fig. 11, it can be seen that when the diameter d is any length value within the range of 0.7-0.9 mm, the maximum average air outlet speed U of the air outlet isaveThe value of (d) is higher. Therefore, in some embodiments of the present invention, the diameter d of the section of the needle electrode 121 connected to the tip thereof is preferably in the range of 0.7-0.9 mmAny length value. For example, the diameter d of the section of the needle electrode 121 connected to its tip may be 0.70mm, 0.75mm, 0.80mm, 0.85mm, or 0.90 mm.
Further, referring to fig. 11, the effect is best when the diameter d of the section of the needle electrode 121 connected to its tip is 0.7 mm.
Fig. 12 is a schematic perspective view of a discharge module according to another embodiment of the present invention. In other embodiments, the vertical distance between the plurality of electrode stringers 120 and the mesh electrode 110 sequentially increases or sequentially decreases such that the plurality of electrode stringers 120 are arranged in a stepped manner on one side of the mesh electrode 110. That is to say, the vertical distances between each electrode stringer 120 and the mesh electrode 110 are different, so that different regions of the same air outlet end face of the ion wind generating device 10 can have different air outlet speeds, and the progressive and gradually enhanced air outlet effect can be realized layer by layer in a certain direction of the same air outlet end face, thereby improving the layered comfort experience of users.
Fig. 13 is a schematic perspective view of a discharge module according to still another embodiment of the present invention. In still other embodiments, an additional electrode plate 130 is disposed on a side of each electrode beam 120 facing the mesh electrode 110, and voltages are applied between the mesh electrode 110 and the electrode beams 120 and between the mesh electrode 110 and the additional electrode plate 130, wherein the voltage between the mesh electrode 110 and the electrode beams 120 is much greater than the voltage between the mesh electrode 110 and the additional electrode plate 130. Therefore, an independent electric field can be formed between the additional electrode plate 130 and the mesh electrode 110, and therefore, the voltage between the additional electrode plate 130 and the mesh electrode 110 only needs to be small to achieve an obvious effect of accelerating the electric field movement of ions between the additional electrode plate and the mesh electrode 110, and thus, the voltage between the electrode beam 120 and the mesh electrode 110 does not need to be large to achieve the purpose of high air outlet speed, and the overall air supply efficiency of the ion wind generating device 10 and the utilization rate of the device are improved. Meanwhile, because the voltage between the electrode beams 120 and the mesh electrode 110 is not very large, harmful substances such as ozone generated by high-voltage ionization are effectively reduced, and bad phenomena such as ignition and discharge are avoided.
In particular, the voltage between the mesh electrode 110 and the additional electrode plate 130 is in the order of volts, and may be, for example, between several volts and several tens of volts. The voltage between the electrode beams 120 and the mesh electrode 110 is kilovolt, for example, the value can be taken within the range of 5KV to 13KV, so that the generated air volume of the ion wind can meet the user requirement, and harmful substances generated due to high-voltage ionization can be avoided.
In some embodiments of the present invention, the additional electrode plate 130 is provided with a through hole at a position corresponding to each of the needle electrodes 121 of the electrode stringer 120, and each of the needle electrodes 121 is inserted into a corresponding one of the through holes. Therefore, the needle electrode 121 can be accurately limited through the through hole, and the needle electrode 121 is supported and protected to a certain extent. Meanwhile, after all the needle electrodes 121 on the electrode beam 120 are accurately limited, the electrode beam 120 can be prevented from deforming due to insufficient strength so as to influence the ionization process, and the strength requirement on the electrode beam 120 is reduced.
Further, the circumferential surface of each through-hole is provided with an insulating member to prevent electric leakage, discharge, and the like between the additional electrode plate 130 and the needle electrode 121. In particular, the insulating component may be an insulating layer attached to the circumferential surface of the through hole or an insulating material coated on the circumferential surface of the through hole, such as an insulating glue or other suitable insulating layer.
In some embodiments of the invention, the plurality of needle electrodes 121 of each electrode stringer 120 are arranged in a plurality of rows and columns on the electrode stringer 120. In every two adjacent rows of the needle-like electrodes 121, every adjacent three non-collinear needle-like electrodes 121 are arranged in an isosceles triangle (see the dashed-line triangle in fig. 2); in every two adjacent rows of needle electrodes 121, every three adjacent non-collinear needle electrodes are arranged in an isosceles triangle (see the dashed triangle in fig. 2) to avoid corona effect. Since the corona effect is a technique readily available to those skilled in the art, it will not be described in detail here.
In some embodiments of the present invention, the ion wind generating device 10 further includes a purifying module 140, and the purifying module 140 is located at a downstream side of the at least one discharging module 100 in an air blowing direction of the ion wind generating device 10 to purify the ion wind generated by the at least one discharging module 100.
The embodiment of the invention also provides an air conditioner indoor unit. Fig. 14 is a schematic structural exploded view of an air conditioning indoor unit according to an embodiment of the present invention, in which the positive X-axis direction is directed to the front side of the air conditioning indoor unit, the positive Y-axis direction is directed to the right side of the indoor unit, and the positive Z-axis direction is directed above the indoor unit. The air conditioning indoor unit 1 of the present invention includes a casing 30 and at least one ion wind generating device 10 described in any one of the above embodiments. The casing 30 has at least one air blowing port 31 through which an air flow flows out, and the opening/closing mechanism 20 for rectifying the air blowing is provided to one or more air blowing ports 31 of the at least one air blowing port 31.
The at least one ion wind generating device 10 is disposed in the housing 30 to provide ion wind to one or more of the at least one wind blowing opening 31. The ion wind generating device 10 makes particles in the air obtain kinetic energy by means of electric field force, thereby forming ion wind. Compared with a rotary air supply assembly (such as a fan), the ion wind generating device 10 has the advantages of small pressure loss, low energy consumption, low noise and the like, so that the noise generated when the air conditioner indoor unit operates is reduced to a great extent.
Specifically, the indoor unit 1 of the air conditioner further includes a heat exchanging device disposed in the cabinet 30, and configured to exchange heat with air flowing therethrough to change the temperature of the air. The indoor unit 1 of the air conditioner can independently drive air supply through the ion wind generating device 10, and can also drive air supply together with the matching of fan components. The ion wind generated by the ion wind generating device 10 can be sent out after heat exchange by the heat exchange device, or can be directly sent out without heat exchange by the heat exchange device, and can be sent out after independently supplying air or mixing with air flow driven by a fan assembly.
In some embodiments of the present invention, the air blowing port 31 having the opening and closing mechanism 20 is circular. Each shutter mechanism 20 comprises a central shutter 21 and a plurality of curved blades 22. The central baffle 21 is fixedly provided at the center of the corresponding one of the air blowing ports 31, and an air outlet region is formed between the outer peripheral edge thereof and the inner peripheral edge of the corresponding one of the air blowing ports 31. For example, the central baffle 21 may be circular, and the corresponding outlet area is annular. In alternative embodiments of the present invention, the central baffle 21 may have other shapes such as a square shape, an oval shape, and the like.
The plurality of curved blades 22 are sequentially arranged along the circumferential direction of the central baffle 21, and the plurality of curved blades 22 are configured to be gathered toward the center of the central baffle 21 to at least partially open the wind outlet region, and to be fully gathered and contracted to the front side or the rear side of the central baffle 21. Therefore, when the air-conditioning indoor unit 1 is shut down, the plurality of curved blades 22 are unfolded towards the edge of the air supply opening 31, the air outlet area can be completely sealed, external dust and impurities can be effectively prevented from entering the air duct, and the working effect of the air-conditioning indoor unit 1 is ensured. When the indoor unit 1 of the air conditioner is in operation, the plurality of curved blades 22 gather and contract towards the center of the central baffle 21 to fully open the air outlet area, so that air can be supplied by the indoor unit 1 of the air conditioner.
Specifically, in some embodiments, the number of curved blades 22 may be 6 and are evenly disposed along the circumference of the central baffle 21. Preferably, the plurality of curved blades 22 can be completely gathered and contracted to the rear side of the central baffle 21, that is, when the plurality of curved blades 22 are in a completely gathered state, the central baffle 21 can shield the plurality of curved blades 22, and a user cannot observe the curved blades 22 from the outside of the air supply opening, so that the appearance of the air supply opening is more attractive. More importantly, the plurality of curved blades 22 can be completely folded to the rear side of the central baffle 21, so that additional air duct space is not occupied, and the space utilization rate inside the indoor unit 1 of the air conditioner is improved. The plurality of curved blades 22 may also be flared away from the center of the central baffle 21 to at least partially enclose the wind exit region. The plurality of curved blades 22 can be unfolded to completely cover the annular air outlet region, so that the air outlet can be completely closed.
Fig. 15 and 16 are schematic structural views of different orientations of the curved blade of the opening and closing mechanism according to one embodiment of the present invention, respectively. In the present embodiment, the curved blade 22 is approximately crescent shaped, having an outer contoured edge portion that is convex and an inner contoured edge portion that is concave. The inner peripheral edge portion is disposed toward the center of the central baffle 21 when the plurality of curved blades 22 are gathered, and accordingly, the outer peripheral edge portion may be directed toward the inner peripheral edge of the air blowing port 31 when the plurality of curved blades 22 are gathered. The outer and inner contoured edge portions together define the root and tip ends of the curved blade 22.
In some embodiments of the present invention, the outer contoured edge portion of each curved blade 22 comprises: a first circular arc shaped section 221 and a second circular arc shaped section 222. The inner contour edge portion includes: a third circular arc shaped section 223 and a fourth circular arc shaped section 224. The first and fourth circular arc-shaped sections 221, 224 are progressively closer towards the root end of the curved blade 22, such that the root end of the curved blade 22 forms a tapered curved region. The second and third circular arc-shaped sections 222, 223 are progressively closer towards the tip of the curved blade 22 so that the tip of the curved blade 22 also forms a tapered curved region. That is, the first circular arc-shaped section 221 and the fourth circular arc-shaped section 224 gradually approach in a direction toward the root end of the curved blade 22, so that the root end of the curved blade 22 forms a tapered curved region; the second arc-shaped section 222 and the third arc-shaped section 223 gradually approach in a direction directed toward the tip of the curved blade 22 so that the tip of the curved blade 22 forms a tapered curved region.
In some preferred embodiments of the present invention, the curvature of the first circular arc-shaped section 221 is equal to the curvature of the outer periphery of the central barrier 21. That is, when the plurality of curved blades 22 are completely gathered to the rear side of the central barrier 21, the first circular arc-shaped sections 221 of the plurality of curved blades 22 coincide with the outer peripheral edge of the central barrier 21. After the plurality of curved blades 22 are gathered, a partial region of each curved blade 22 is located between two adjacent curved blades 22 of the curved blade 22. The curvature of the second circular arc-shaped section 222 is equal to the curvature of the inner periphery of the air blowing port 31. That is, when the plurality of curved blades 22 are fully unfolded to cover the wind outlet region, the second arc-shaped sections 222 of the plurality of curved blades 22 overlap the inner periphery of the air blowing opening 31. By such design, the plurality of curved blades 22 can be completely folded to the rear side of the central baffle 21 or completely unfolded to shield the air outlet area, so that the appearance of the air supply opening 31 is more complete and beautiful.
In addition, the curvature and length of the third circular arc shaped section 223 are both equal to the curvature and length of the first circular arc shaped section 221. In this embodiment, when the plurality of curved blades 22 are completely unfolded to cover the air outlet region, the first arc-shaped section 221 and the third arc-shaped section of each of the two adjacent curved blades 22 are just spliced together, so that the plurality of curved blades 22 can completely cover the air outlet region, and meanwhile, the adjacent curved blades 22 are not overlapped as much as possible, so that the size of the curved blades is fully utilized, and the appearance of the air outlet is more complete and attractive.
In some embodiments of the invention, to facilitate the gathering and unfolding of the plurality of curved blades 22, each curved blade 22 is preferably rotatably disposed about its root end to either the front or rear side of the central bezel 21. Moreover, after the plurality of curved blades 22 are gathered, a partial region of each curved blade 22 is located between two adjacent curved blades 22 of the curved blade.
Further, the first arc-shaped section 221 further has a guiding flange 225 that is gradually higher from the root end adjacent to the curved blade 22 to the direction away from the root end, so as to guide the curved blades 22 in the front-rear direction of the indoor unit when the curved blades 22 are contracted or expanded, so that the curved blades 22 can be at least partially overlapped. This is so because during the collapsing of the plurality of curved blades 22, there may be mechanical interference between adjacent curved blades 22. The guide flange 225 is located at a lower position near the root end and a higher position away from the root end, and when the adjacent curved blades 22 are folded to overlap each other, the guide flange 225 can guide the adjacent blades to slightly move toward the rear side so that the adjacent curved blades 22 are staggered in the front-rear direction of the opening and closing mechanism 20 to prevent mechanical interference.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. An ion wind generating device comprising at least one discharge module for generating an ion wind, each of the discharge modules comprising:
the mesh electrode is arranged perpendicular to the air supply direction of the ion wind generating device; and
the electrode stringers are arranged on one side of the mesh electrode in parallel with the mesh electrode, each electrode stringer is provided with a plurality of needle holes, each needle hole is internally provided with a needle-shaped electrode, and the needle point of the needle-shaped electrode points to the mesh electrode; wherein
A lotus-shaped locking structure protruding out of the electrode stringer is arranged around each pinhole, the peripheral wall of the lotus-shaped locking structure is arranged discontinuously, and the lotus-shaped locking structure is gradually contracted and closed from the surface of the electrode stringer to the direction close to the mesh electrode until an opening with a preset size is formed at the top end of the lotus-shaped locking structure, so that the needle-shaped electrode can be detachably clamped into the lotus-shaped locking structure and inserted into the pinhole;
the number of the electrode stringers is multiple, and the electrode stringers are sequentially arranged and connected in sequence along the same direction; and is
The vertical distances between the plurality of electrode stringers and the mesh electrode are sequentially increased or sequentially decreased so that the plurality of electrode stringers are arranged on one side of the mesh electrode in a stepped manner;
an additional electrode plate is arranged on one side of each electrode stringer, which faces the mesh-shaped electrode, voltages are applied between the mesh-shaped electrode and the electrode stringers and between the mesh-shaped electrode and the additional electrode plate, the voltage between the mesh-shaped electrode and the additional electrode plate is in a volt level, and the voltage between the electrode stringers and the mesh-shaped electrode is in a kilovolt level;
through holes are formed in the positions, corresponding to the needle electrodes, of the additional electrode plate and the electrode stringer, each needle electrode penetrates through one corresponding through hole, an insulating part is arranged on the circumferential surface of each through hole, and the through holes limit the needle electrodes and play a role in supporting and protecting the needle electrodes.
2. The ionic wind generating device according to claim 1, wherein
The lotus-shaped locking structure comprises a plurality of locking plates which are arranged at intervals, the locking plates are uniformly distributed on the same hollow hemisphere, the center of the hemisphere and the center of the needle hole are positioned on the same straight line which is perpendicular to the electrode stringer, and therefore the needle-shaped electrode inserted into the needle hole is concentric with the needle hole.
3. The ionic wind generating device according to claim 2, wherein
The quantity of locking plate is four, four two liang of relative and symmetry setting of locking plate.
4. The ionic wind generating device according to claim 2, wherein
The cross section of the opening is circular, and the diameter of the opening is selected to enable the ratio of the diameter of the opening to the diameter of the pinhole to be any proportion value within the range of 0.7-0.8.
5. The ionic wind generating device according to claim 1, wherein
The mesh electrode is provided with a plurality of round meshes, and the needle tip of each needle-shaped electrode points to the center of a corresponding mesh of the mesh electrode; and is
The ratio of the vertical distance between the needle point of the needle-shaped electrode and the mesh electrode to the diameter of the mesh is any proportional value within the range of 0.1-0.3.
6. The ionic wind generating device according to claim 1, wherein
The plurality of needle electrodes of each electrode stringer are arranged in a plurality of rows and columns on the electrode stringer; and is
In every two adjacent rows of needle electrodes, every three adjacent non-collinear needle electrodes are arranged into an isosceles triangle; in every two adjacent rows of needle electrodes, every three adjacent non-collinear needle electrodes are arranged into an isosceles triangle.
7. An indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with at least one air supply outlet for flowing out of air supply flow, and one or more air supply outlets in the at least one air supply outlet are provided with an opening and closing mechanism for rectifying air supply; and
at least one ionic wind generating device according to any one of claims 1 to 6 disposed within said housing for providing ionic wind to one or more of said at least one supply air opening.
8. The indoor unit of air conditioner according to claim 7, wherein
The air supply outlet having the opening and closing mechanism is circular, and each of the opening and closing mechanisms includes:
a central baffle fixedly arranged at the center of the corresponding air supply outlet, and an air outlet area is formed between the outer periphery of the central baffle and the inner periphery of the corresponding air supply outlet; and
the plurality of curved blades are sequentially arranged along the circumferential direction of the central baffle, are configured to be gathered towards the center of the central baffle so as to at least partially open the air outlet area, and are configured to be unfolded towards the direction away from the center of the central baffle so as to at least partially close the air outlet area.
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| CN201710931217.8A CN107809060B (en) | 2017-10-09 | 2017-10-09 | Ion wind generating device and air conditioner indoor unit |
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| CN201710931217.8A CN107809060B (en) | 2017-10-09 | 2017-10-09 | Ion wind generating device and air conditioner indoor unit |
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| CN108390259A (en) * | 2018-04-02 | 2018-08-10 | 冯新章 | A kind of anion generating means |
| CN114543311B (en) * | 2022-01-27 | 2024-02-20 | 青岛海尔空调器有限总公司 | Control method of indoor unit of air conditioner |
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Effective date of registration: 20201030 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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