CN108019822B - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN108019822B CN108019822B CN201610937369.4A CN201610937369A CN108019822B CN 108019822 B CN108019822 B CN 108019822B CN 201610937369 A CN201610937369 A CN 201610937369A CN 108019822 B CN108019822 B CN 108019822B
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- 238000007599 discharging Methods 0.000 claims abstract description 16
- 230000005684 electric field Effects 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 abstract description 24
- 238000007664 blowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention relates to an air-conditioning indoor unit, comprising: the air conditioner comprises a shell, a fan and a fan, wherein the two transverse ends of the shell are closed, and the shell is provided with an air inlet positioned on the front side of the shell and an air outlet positioned at the lower part of the shell; the heat exchange device is arranged in the shell and is configured to exchange heat with air flowing through the shell; and the ion wind generating device is arranged at the rear side of the heat exchange device and is configured to impel the air subjected to heat exchange by the heat exchange device to flow towards the air outlet through electric field force. The ion wind generating device comprises a plurality of discharging modules which are sequentially arranged along the air supply direction, each discharging module comprises a mesh electrode which is horizontally arranged and a plurality of needle electrodes which are distributed on the upper side of the mesh electrode, and the needle electrodes of every two adjacent discharging modules are arranged in a staggered mode in the transverse direction and the front-back direction. The air sent out by the indoor unit of the air conditioner can be uniformly distributed in the air outlet surface of the indoor unit of the air conditioner, so that soft, uniform and large-air-volume air supply can be realized under the conditions of low voltage, low electric field intensity and low power.
Description
Technical Field
The invention relates to the air conditioning technology, in particular to an air conditioner indoor unit.
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 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. However, after the ion wind generating device capable of generating ion wind is used in the air-conditioning indoor unit instead of the air supply fan, the generated wind speed and wind volume are limited, and the normal use requirement of the air-conditioning indoor unit cannot be met. Due to the above problems, the air-conditioning blowing technique using the ion wind generator has been limited to the most basic theoretical level.
In order to obtain a larger wind speed, the prior art generally adopts a mode of increasing voltage, however, in the process of increasing voltage, when the current value is increased to a certain degree, a spark discharge phenomenon occurs, the voltage between electrodes is rapidly reduced, and the wind speed of the ion wind is extremely weak or even no ion wind exists. As can be seen from the above, the prior art has a low air supply speed, air supply amount and air supply efficiency of the ion air supply module with the needle mesh structure.
Disclosure of Invention
An object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide an indoor unit of an air conditioner that supplies air uniformly and softly and with a large air supply amount.
Another object of the present invention is to further improve the speed, volume and efficiency of the ion wind generated by the ion wind generating device.
It is yet another object of the present invention to avoid the generation of spark-over phenomena.
In order to achieve the above object, the present invention provides an indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a fan and a control device, wherein the two transverse ends of the shell are closed, and the shell is provided with an air inlet positioned on the front side of the shell and an air outlet positioned at the lower part of the shell;
the heat exchange device is arranged in the shell and is configured to exchange heat with air flowing through the shell; and
an ion wind generating device disposed at the rear side of the heat exchanging device and configured to force the air heat-exchanged by the heat exchanging device to flow toward the air outlet by an electric field force, wherein
Ion wind generating device includes a plurality of modules of discharging that arrange in proper order along its air supply direction, every the module of discharging all includes the level mesh electrode of placing and distributes a plurality of needle electrode of mesh electrode upside, every adjacent two the needle electrode of the module of discharging all misplaces in horizontal and fore-and-aft direction and arranges.
Optionally, the cabinet comprises a rear case for constituting a rear portion thereof and a front panel for constituting a front portion thereof, wherein
The front panel is configured to be pivotally connected to a front side of the rear housing in a front-to-rear direction about a bottom pivot axis extending laterally thereof to form the air intake opening between the front panel and the rear housing when the front panel is controllably pivoted forward about the bottom pivot axis to an open position.
Optionally, in each discharge module, the distance L between the tip of each needle electrode and the mesh electrode is set to satisfy L ═ a L1Wherein a is any constant in the range of 0.7 to 1.3, L1So that the wind speed of the ion wind at the wind speed central point of the mesh electrode reaches the maximum wind speed VmaxThe distance between the tip of the needle electrode and the mesh electrode is equal to the distance between the tip of the needle electrode and the mesh electrode, and the wind speed central point of the mesh electrode is the projection point of the tip of the needle electrode on the mesh electrode.
Optionally, in each of the discharge modules, a distance R between tips of two adjacent needle electrodes is set so as to satisfy: r ═ aR1Wherein R is1For the wind speed to reach the maximum wind speed VmaxB is any constant within the range of 0.3-0.7.
Optionally, projections of each group of three needle electrodes adjacent to each other formed by the needle electrodes of the plurality of discharge modules in the horizontal plane form an equilateral triangle.
Optionally, projections of each group of three mutually adjacent needle electrodes formed in a plane vertically placed and extending along the transverse direction of the needle electrodes of the plurality of discharge modules form an isosceles triangle.
Optionally, the needle electrode of each of the discharge modules is electrically connected to a positive or negative polarity high voltage terminal, and the mesh electrode of each of the discharge modules is electrically connected to a ground terminal, so that the plurality of discharge modules are connected in parallel.
Alternatively, the needle electrode of the discharge module located at one end of the ion wind generating device is electrically connected to a positive or negative polarity high voltage terminal, the mesh electrode of the discharge module located at the other end of the ion wind generating device is electrically connected to a ground terminal, and the mesh electrode of each of the discharge modules except the discharge module located at the other end of the ion wind generating device, which are arranged from one end of the ion wind generating device to the other end thereof, is electrically connected to the needle electrode of the discharge module located adjacent thereto downstream, so that the plurality of discharge modules are connected in series.
Optionally, each of the discharge modules further includes a plurality of conductive rods, and the plurality of needle electrodes are uniformly distributed on the lower sides of the conductive rods facing the mesh electrodes of the discharge module; and is
Each of the conductive rods has an insulating protective layer formed on the outside thereof and a conductive layer formed on the inside thereof, the conductive layer being electrically connected to the needle electrodes distributed on the conductive rod.
Optionally, the ion wind generating device includes a bottom air guiding channel for guiding air to flow to the air outlet, and the bottom air guiding channel is inclined forward from top to bottom and extends to a bending portion, and then extends vertically downward to the air outlet, so that the air outlet supplies air in a range of 0-85 ° below a horizontal plane where the air outlet is located and forms an angle with the horizontal plane.
The ion wind generating device of the air conditioner indoor unit comprises a plurality of discharging modules, and the needle electrodes of every two adjacent discharging modules are arranged in a staggered mode in the transverse direction and the front-back direction. Therefore, the ion wind generated by the ion wind generating device can be uniformly distributed in the wind outlet surface of the ion wind generating device, so that soft, uniform and large-wind-volume air supply can be realized under the conditions of low voltage, low electric field intensity and low power.
Furthermore, the invention can ensure that the ion wind generating device can generate uniform ion wind with larger wind quantity by reasonably designing the spatial position relationship between the needle electrode and the mesh electrode of each discharge module and reasonably distributing the position relationship among a plurality of needle electrodes, thereby improving the wind supply speed, the wind supply quantity and the wind supply efficiency of the ion wind generating device.
Furthermore, the plurality of discharging modules which are arranged in sequence are arranged, and corona discharge is generated between the needle electrode in each discharging module and the corresponding mesh electrode, so that the air can be accelerated for multiple times through the plurality of discharging modules, the superposition of the air speed is realized, negative pressure can be formed under the condition of obtaining higher air outlet speed, the air inlet volume is further increased, and the air supply speed, the air supply volume and the air supply efficiency of the ion air generating device are further improved.
Furthermore, because the conducting rod of each discharging module is provided with the insulating protection layer and the conducting layer, the needle-shaped electrode can be ensured to be well electrically connected with the conducting layer in the conducting rod, and the conducting layer can be strictly prevented from being exposed to the outside, so that the phenomenon of disordered discharging or sparking is avoided.
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:
fig. 1 is a schematic front view of an air conditioning indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic side view of an air conditioning indoor unit according to an embodiment of the present invention;
fig. 3 is a schematic exploded view of an air conditioning indoor unit according to an embodiment of the present invention;
FIG. 4 is a schematic exploded view of an ionic wind generating device according to one embodiment of the present invention;
FIG. 5 is a schematic top view of a pin grid layout of an ionic wind generating device according to one embodiment of the present invention;
FIG. 6 is a schematic side view of a pin grid layout of an ionic wind generating device according to one embodiment of the present invention;
FIG. 7 is a schematic front view of a pin grid layout of an ionic wind generating device according to one embodiment of the present invention;
fig. 8 is a schematic structural view of a connection relationship between a plurality of discharge modules of the ion wind generating apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a connection relationship between a plurality of discharge modules of an ion wind generating apparatus according to another embodiment of the present invention;
fig. 10 is a schematic sectional view taken along sectional line a-a in fig. 1.
Detailed Description
An air conditioning indoor unit according to an embodiment of the present invention is provided, fig. 1 is a schematic front view of an air conditioning indoor unit according to an embodiment of the present invention, fig. 2 is a schematic side view of an air conditioning indoor unit according to an embodiment of the present invention, and fig. 3 is a schematic exploded view of an air conditioning indoor unit according to an embodiment of the present invention. Referring to fig. 1 to 3, an air conditioning indoor unit according to an embodiment of the present invention includes a casing 10, a heat exchanging device 20 disposed in the casing 10, and an ion wind generating device 40 disposed behind the heat exchanging device 20.
The cabinet 10 is closed at both lateral ends thereof and has an intake port 120 at a front side thereof and an exhaust port 110 at a lower portion thereof. The special design of the present invention, in which the air inlet 120 is disposed at the front side of the casing 10 and the ion wind generating device 40 is disposed at the rear side of the heat exchanging device 20, not only can better support the ion wind generating device 40, but also can allow the indoor unit 1 of the air conditioner to be installed at a position where there is no gap between the top of the indoor unit and the ceiling. That is, even if the top of the indoor unit 1 abuts against the indoor wall, the indoor unit can still normally enter and exit air, so that the limitation on the installation position is further weakened, the installation flexibility is improved, and the use environment is expanded.
Further, the cabinet 10 may include a rear case 14 for constituting a rear portion thereof and a front panel 13 for constituting a front portion thereof. The front panel 13 is configured to be pivotably connected to the front side of the rear housing 14 in the front-rear direction about its bottom pivot axis extending in the lateral direction to form an air intake opening 120 of the cabinet 10 between the front panel 13 and the rear housing 14 when the front panel 13 is controllably pivoted forward about its bottom pivot axis to an open position.
Specifically, the bottom of the front panel 13 is pivotably connected to the bottom front side of the rear housing 14 in the front-rear direction, and the front panel 13 is configured to be controllably pivoted between its open position and closed position. When the air conditioning indoor unit 1 is started, the front panel 13 is controllably pivoted forward about its bottom pivot axis to the open position, so that the air inlet opening 120 of the cabinet 10 is formed at the upper portion and both lateral side portions between the front panel 13 and the rear casing 14. When the front panel 13 is controllably pivoted backward about its bottom pivot axis to the closed position after the air conditioning indoor unit 1 stops operating, the circumferential edge of the front panel 13 abuts against at least a part of the circumferential edge of the rear casing 14 and the edges of other components, so that the air inlet 120 of the cabinet 10 disappears. Therefore, the front panel 13 is specially designed, so that a normal air inlet can be formed at the front side of the air-conditioning indoor unit 1 when the air-conditioning indoor unit 1 operates, and the shell 10 of the air-conditioning indoor unit 1 can form a whole with a compact structure and a uniform appearance when the air-conditioning indoor unit 1 stops operating, so that the occupied space of the air-conditioning indoor unit 1 in a non-operating state is reduced, and the appearance effect of the air-conditioning indoor unit is improved.
The heat exchanging device 20 is disposed in the cabinet 10 and configured to exchange heat with air flowing therethrough to change the temperature of the air flowing therethrough into cold air or hot air. Specifically, the heat exchanging device 20 may include a flat plate evaporator to improve heat exchanging efficiency, and reduce the thickness of the indoor unit 1 in the front-rear direction, thereby reducing the volume of the indoor unit 1. The width of the evaporator in the transverse direction is approximately equal to the sum of the widths of the ion wind generating devices 40 in the transverse direction, so that the air subjected to heat exchange by the evaporator flows to the ion wind generating devices 40.
Further, a fixing bracket 80 for fixing the heat exchanging device 20 may be further disposed in the casing 10, and the heat exchanging device 20 and the fixing bracket 80, and the fixing bracket 80 and the rear housing 14 may be fixed together by screw connection, clamping connection, or other suitable connection methods.
The ion wind generating device 40 is disposed at the rear side of the heat exchanging device 20, and is configured to force the air heat-exchanged by the heat exchanging device 20 to flow toward the air outlet 110 by an electric field force. The ion wind generating device 40 generates ion wind by kinetic energy of particles in the air by means of electric field force. Compared with a rotary air supply assembly (such as a fan), the ion wind generating device has the advantages of pressure loss, low energy consumption, low noise and the like. Compared with the condition of using a fan for air supply, the invention greatly reduces the overall noise of the air conditioner indoor unit 1 during operation. Meanwhile, the ion wind generated by the ion wind generating device is not generated by pressure, but is a soft wind close to nature generated by electric field force, so that the comfort level of the air-conditioning indoor unit 1 can be improved. In addition, since the ion wind is formed by a high-voltage electric field, it has the function of sterilizing and decomposing harmful gas pollutants with high efficiency.
Fig. 4 is a schematic exploded view of an ion wind generating device according to an embodiment of the present invention. Further, referring to fig. 4, the ion wind generating device 40 includes a plurality of discharge modules arranged in sequence along the air supply direction (i.e. from top to bottom), each discharge module includes a mesh electrode horizontally disposed and a plurality of needle electrodes distributed on the upper side of the mesh electrode, and the needle electrodes of every two adjacent discharge modules are arranged in a staggered manner in the transverse direction and the front-back direction. The following describes the technical solution of the present invention in detail by taking an example that the ion wind generating device 40 includes two discharge modules arranged in sequence. Fig. 5 is a schematic plan view of a pin grid layout of an ion wind generating device according to an embodiment of the present invention, fig. 6 is a schematic side view of a pin grid layout of an ion wind generating device according to an embodiment of the present invention, and fig. 7 is a schematic front view of a pin grid layout of an ion wind generating device according to an embodiment of the present invention. For convenience of description and understanding of the technical solution of the present invention, directional coordinates are given in fig. 5 to 7, wherein the OX direction denotes a vertical direction, and the direction indicated by the OX arrow is downward and the direction indicated by the arrow facing away from the OX arrow is upward; the OY direction represents a lateral direction; the OZ direction represents the anterior-posterior direction, with the OZ arrow pointing in the anterior direction and the direction pointing away from the OZ arrow pointing in the posterior direction.
Referring to fig. 4 to 7, in some embodiments of the present invention, the number of the discharge modules may be two, which are a front-stage discharge module 410 located at the front side in the air outlet direction of the ion wind generating device 40 and a rear-stage discharge module 420 located at the rear side in the air outlet direction. The pre-discharge module 410 has a mesh electrode 411 and a plurality of needle electrodes 412, and the post-discharge module 420 has a mesh electrode 421 and a plurality of needle electrodes 422. In the top view shown in fig. 5, the needle electrodes 412 of the front stage discharge module 410 and the needle electrodes 422 of the rear stage discharge module 420 are arranged in a staggered manner in both the OZ direction and the OY direction. In the side view shown in fig. 6, the needle electrodes 412 of the front stage discharge module 410 and the needle electrodes 422 of the rear stage discharge module 420 have a certain height difference, that is, the needle electrodes 412 of the front stage discharge module 410 and the needle electrodes 422 of the rear stage discharge module 420 are not at the same height position. In the front view shown in fig. 7, the needle electrodes 412 of the front stage discharge module 410 and the needle electrodes 422 of the rear stage discharge module 420 are on different straight lines extending in the front-rear direction (i.e., parallel to the OX direction).
Therefore, the ion wind generated by the ion wind generating device 40 can be uniformly distributed in the wind outlet surface, so that soft, uniform and large-wind-volume air supply can be realized under the conditions of low voltage, low electric field intensity and low power. It is emphasized that references to a plurality in embodiments of the present invention mean two, three or more than three. Specifically, the mesh electrode may be a metal mesh having square holes, diamond holes, circular holes, or other shaped through holes. The needle electrode may be a discharge needle made of a metal material, and has a discharge tip, and the discharge tip may be directed to the center of a through hole of the mesh electrode.
The air-conditioning indoor unit 1 of the invention originally improves the ion wind supply technology staying on the theoretical level for a long time by specially designing and reasonably arranging the structures and positions of the air inlet, the air outlet, the heat exchange device and the ion wind generating device, thereby simultaneously solving the technical problems of small air supply quantity, low wind speed, high noise, poor experience effect, poor appearance effect and the like in the prior art by using a simple structure. Meanwhile, the technical scheme of the invention has better realizability and economic value, is an innovation of the air supply form of the air conditioner and has better popularization value.
In order to increase the blowing speed of the ion wind generating device 40, the designer of the present invention performed a large number of wind speed measurement experiments, and found that the distance L between the tip of each needle electrode and the mesh electrode was set so as to satisfy L ═ a L1(wherein a is any constant in the range of 0.7-1.3, i.e. a can be 0.7, 0.8, 0.9, 1.0, 1.1, 1.2 or 1.3, L1So that the wind speed of the ion wind at the wind speed central point of the mesh electrode reaches the maximum wind speed VmaxThe distance between the tip of the needle-shaped electrode and the mesh-shaped electrode, and the wind speed central point of the mesh-shaped electrode is the projection point of the tip of the needle-shaped electrode on the mesh-shaped electrode), on the one hand, the wind speed of the ion wind generated by the ion wind generating device 40 can better meet the normal use requirement of a user, and on the other hand, the needle-shaped electrode can be partially overlapped in the region where the mesh-shaped electrode generates effective ion wind to achieve the projection effect of the shadowless lamp, so that the ion wind distribution of the mesh-shaped electrode is more uniform.
Further, in order to increase the amount of air blown by the ion wind generating device 40, the designer of the present invention has conducted a large number of experiments for measuring the projection radius of the needle tip, and as a result of the experiments, it was found that the distance R between the tips of two adjacent needle electrodes is set so as to satisfy R ═ aR1(wherein, R1For the wind speed to reach the maximum wind speed VmaxB is a constant in a range of 0.3-0.7, that is, b can be 0.3, 0.4, 0.5, 0.6 or 0.7, and a is the same as above), the volume of the ion wind generated by the ion wind generating device 40 can better meet the normal use requirements of users. At the same time, to adjacentAfter the distance between the two needle electrodes is specially designed, the mutual offset of wind speeds caused by too close distance between the two adjacent needle electrodes can be avoided, and the reduction of wind volume and the uneven distribution of wind volume caused by too far distance between the two needle electrodes can be avoided.
It is emphasized that the maximum wind speed V is here referred tomaxAll reference wind speed values are given on the premise that the voltage value between the needle electrode and the mesh electrode is constant.
Therefore, the invention can ensure that the ion wind generating device 40 can generate uniform ion wind with larger wind quantity by reasonably designing the spatial position relationship between the needle electrodes and the mesh electrodes and reasonably distributing the position relationship among a plurality of needle electrodes, thereby improving the wind speed, the wind quantity and the wind efficiency of the ion wind generating device 40.
In some embodiments of the present invention, projections of each group of three needle electrodes adjacent to each other formed by the needle electrodes of the plurality of discharge modules in a horizontal plane (i.e., the air outlet surface of the ion wind generating device 40) form an equilateral triangle, so as to ensure that the ion wind generated by the ion wind generating device 40 is distributed more uniformly. Also taking two discharge modules as an example, referring to fig. 5, the projection formed in the horizontal plane by two adjacent needle electrodes 412 of the front discharge module 410 and the projection formed in the horizontal plane by the needle electrode 422 of the rear discharge module 420 adjacent to both needle electrodes 412 (i.e., the needle electrode 422 located between the two needle electrodes 412 in the OY direction) form an equilateral triangle. Similarly, the projection formed in the horizontal plane by two adjacent needle electrodes 422 of the later-stage discharge module 420 forms an equilateral triangle with the projection formed in the horizontal plane by the needle electrode 412 of the earlier-stage discharge module 410 adjacent to both of the two needle electrodes 422 (i.e., the needle electrode 412 located between the two needle electrodes 422 in the OY direction).
In some embodiments of the present invention, projections of each group of three needle electrodes adjacent to each other formed by the needle electrodes of the plurality of discharge modules in a vertically disposed and laterally extending plane (i.e., XOY plane) form an isosceles triangle, so as to ensure that the ion wind generated by the ion wind generating device 40 is distributed uniformly. Also taking two discharge modules as an example, referring to fig. 7, the projection formed in the XOY plane by two adjacent needle electrodes 412 of the front discharge module 410 and the projection formed in the XOY plane by the needle electrode 422 of the rear discharge module 420 adjacent to both needle electrodes 412 (i.e., the needle electrode 422 located between the two needle electrodes 412 in the OY direction) form an isosceles triangle between them. Similarly, the projection of the two adjacent needle electrodes 422 of the later-stage discharge module 420 in the XOY plane forms an isosceles triangle with the projection of the needle electrode 412 of the earlier-stage discharge module 410 adjacent to both needle electrodes 422 (i.e., the needle electrode 412 located between the two needle electrodes 422 in the OY direction) in the XOY plane.
In some embodiments of the present invention, the plurality of needle electrodes of each discharge module are parallel to each other and perpendicular to the plane of the mesh electrodes of the discharge module, so as to ensure that each needle electrode and the corresponding mesh electrode can generate a relatively obvious discharge phenomenon, thereby generating an ion wind with a relatively high intensity.
In some embodiments of the present invention, the tips of the plurality of needle electrodes of each discharge module are located in the same plane, so as to ensure that the intensity of the ion wind generated between each needle electrode and the corresponding mesh electrode is the same, so that the ion wind generated by the ion wind generating device 40 as a whole is relatively uniform.
Fig. 8 is a schematic structural view of a connection relationship between a plurality of discharge modules of the ion wind generating apparatus according to an embodiment of the present invention. Referring to fig. 8, the needle electrode of each discharge module is electrically connected to a positive or negative polarity high voltage terminal, and the mesh electrode of each discharge module is electrically connected to a ground terminal, so that a plurality of discharge modules are connected in parallel. That is, the ion wind generating device 40 of the embodiment shown in fig. 8 is a parallel type multistage ion wind blowing device.
Fig. 9 is a schematic structural view of a connection relationship between a plurality of discharge modules of an ion wind generating apparatus according to another embodiment of the present invention. Referring to fig. 9, the needle electrode of the discharge module located at one end of the ion wind generating device 40 is electrically connected to a positive or negative polarity high voltage terminal, the mesh electrode of the discharge module located at the other end is electrically connected to a ground terminal, and the mesh electrode of each of the discharge modules except the discharge module located at the other end, which are arranged from one end of the ion wind generating device 40 to the other end thereof, is electrically connected to the needle electrode of the discharge module located adjacent thereto downstream, so that the plurality of discharge modules are connected in series. That is, the ion wind generating device 40 of the embodiment shown in fig. 9 is a series-connected multi-stage ion wind blowing device.
In the embodiment shown in fig. 8 and 9, a corona discharge phenomenon is generated between the needle electrode and the corresponding mesh electrode in each discharge module, so that the air can be accelerated multiple times through the plurality of discharge modules, the superposition of the air speed is realized, and further, negative pressure can be formed under the condition of obtaining higher air outlet speed, the air inlet volume is further increased, and the air supply speed, the air supply volume and the air supply efficiency of the ion air generating device 40 are further improved.
In some embodiments of the present invention, each discharge module further comprises a plurality of conductive rods, and the plurality of needle electrodes are uniformly distributed on the lower sides of the conductive rods facing the mesh electrodes of the discharge module. Taking pre-stage discharge module 410 as an example, it further includes a plurality of conductive rods 413. The plurality of needle electrodes 412 of pre-discharge module 410 are uniformly distributed on the side of conductive rod 413 facing mesh electrode 411 of pre-discharge module 410. Specifically, in one embodiment of the present invention, a plurality of needle electrodes 412 may be distributed on the lower side of the mesh electrode 411. Each discharge module further includes a housing, also exemplified as pre-stage discharge module 410, including a housing 414, the housing 414 having at least four peripheral walls, and an upper portion of the housing 414 being hollowed out or provided with vents to allow air to flow into the interior of the housing 414.
Further, each of the conductive rods 413 has an insulating protective layer formed on the outside thereof and a conductive layer formed on the inside thereof, which is electrically connected to the needle electrodes 412 distributed on the conductive rod. Therefore, the conducting layer can be prevented from being exposed to the outside, and the phenomenon of random discharge or ignition can be avoided.
In some embodiments of the present invention, a plurality of pinholes for installing the needle electrodes 412 are opened on a side of each conductive rod 413 facing the mesh electrode 411, and a filling layer filled by a welding process is disposed around the needle electrodes 412. Therefore, the needle electrode 412 can be further ensured to be well electrically connected with the conductive layer in the conductive rod 413, and the conductive layer can be further prevented from being exposed to the outside, so that the phenomena of random discharge or sparking can be avoided. In particular, the size of the needle may be slightly smaller than the size of the needle electrode so that the two are secured together by way of an interference fit.
Fig. 10 is a schematic sectional view taken along sectional line a-a in fig. 1. In some embodiments of the present invention, referring to fig. 10, the ion wind generating device 40 further includes a bottom wind guiding channel 430 for guiding the air to flow to the wind outlet 110, and the bottom wind guiding channel 430 extends from top to bottom forward to a bent portion and then vertically downward to the wind outlet 110, so that the wind outlet 110 blows air under a horizontal plane where the wind outlet is located and forms an angle of 0 to 85 ° with the horizontal plane. Specifically, after being guided by the bottom air guiding passage 430, the air blowing opening 110 can blow air in the area between the dotted line m and the dotted line n in fig. 10, where the curved arrow between the dotted line m and the dotted line n is the approximate flow direction of the air flow. Therefore, when the air-conditioning indoor unit 1 heats, the air outlet 110 can blow down hot air which forms an angle of 85 degrees with the horizontal plane, thereby overcoming the technical problems that the hot air is easy to rise and is difficult to blow down.
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 indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a fan and a control device, wherein the two transverse ends of the shell are closed, and the shell is provided with an air inlet positioned on the front side of the shell and an air outlet positioned at the lower part of the shell;
the heat exchange device is arranged in the shell and is configured to exchange heat with air flowing through the shell; and
an ion wind generating device disposed at the rear side of the heat exchanging device and configured to force the air heat-exchanged by the heat exchanging device to flow toward the air outlet by an electric field force, wherein
The ion wind generating device comprises a plurality of discharging modules which are sequentially arranged along the air supply direction, each discharging module comprises a horizontally placed mesh electrode and a plurality of needle electrodes which are distributed on the upper side of the mesh electrode, and the needle electrodes of every two adjacent discharging modules are arranged in a staggered mode in the transverse direction and the front-back direction;
the cabinet includes a rear case for constituting a rear portion thereof and a front panel for constituting a front portion thereof, wherein
The front panel is configured to be pivotally connected to the front side of the rear housing in a front-rear direction about a bottom pivot axis extending transversely thereof to form the air inlet between the front panel and the rear housing when the front panel is controllably pivoted forwardly about the bottom pivot axis to an open position;
each discharge module further comprises a plurality of conductive rods, and the plurality of needle-shaped electrodes are uniformly distributed on one side of each conductive rod, which faces to the mesh-shaped electrode of the discharge module; and is
Each conducting rod is provided with an insulating protective layer forming the outside of the conducting rod and a conducting layer forming the inside of the conducting rod, and the conducting layer is electrically connected with the needle-shaped electrodes distributed on the conducting rod;
the side surface of each conducting rod facing the mesh electrode is provided with a plurality of pinholes for mounting the needle electrode, a filling layer filled by a welding process is arranged around the needle electrode, and the size of each pinhole is smaller than that of the needle electrode.
2. An indoor unit of an air conditioner according to claim 1,
in each discharge module, the distance L between the tip of each needle electrode and the mesh electrode is set to satisfy L ═ a L1Wherein a is any constant in the range of 0.7 to 1.3, L1So that the wind speed of the ion wind at the wind speed central point of the mesh electrode reaches the maximum wind speed VmaxThe distance between the tip of the needle electrode and the mesh electrode is equal to the distance between the tip of the needle electrode and the mesh electrode, and the wind speed central point of the mesh electrode is the projection point of the tip of the needle electrode on the mesh electrode.
3. An indoor unit of an air conditioner according to claim 2,
in each of the discharge modules, a distance R between tips of two adjacent needle electrodes is set so as to satisfy: r ═ aR1Wherein R is1For the wind speed to reach the maximum wind speed VmaxB is any constant within the range of 0.3-0.7.
4. An indoor unit of an air conditioner according to claim 1,
the projections of each group of three adjacent needle electrodes formed by the needle electrodes of the plurality of discharge modules in the horizontal plane form an equilateral triangle.
5. An indoor unit of an air conditioner according to claim 1,
the projections of each group of three adjacent needle electrodes formed in a plane which is vertically arranged and transversely extends of the needle electrodes of the plurality of discharge modules form an isosceles triangle.
6. An indoor unit of an air conditioner according to claim 1,
the needle electrode of each discharge module is electrically connected with a positive polarity or negative polarity high-voltage terminal, and the mesh electrode of each discharge module is electrically connected with a grounding terminal, so that the plurality of discharge modules are connected in parallel.
7. An indoor unit of an air conditioner according to claim 1,
the needle electrode of the discharge module positioned at one end of the ion wind generating device is electrically connected with a positive polarity or negative polarity high voltage terminal, the mesh electrode of the discharge module positioned at the other end of the ion wind generating device is electrically connected with a grounding terminal, and the mesh electrodes of each of the discharge modules except the discharge module positioned at the other end of the ion wind generating device, which are arranged from one end of the ion wind generating device to the other end of the ion wind generating device, are electrically connected with the needle electrode of the discharge module positioned at the adjacent downstream of the ion wind generating device, so that the plurality of discharge modules are connected in series.
8. An indoor unit of an air conditioner according to claim 1,
the ion wind generating device comprises a bottom wind guide channel used for guiding air to flow to the air outlet, wherein the bottom wind guide channel is inclined forwards from top to bottom and extends to a bending part and then vertically extends downwards to the air outlet, so that the air outlet supplies air in a range of 0-85 degrees below a horizontal plane where the air outlet is located and forms an angle with the horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937369.4A CN108019822B (en) | 2016-11-01 | 2016-11-01 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937369.4A CN108019822B (en) | 2016-11-01 | 2016-11-01 | Indoor unit of air conditioner |
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| Publication Number | Publication Date |
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| CN108019822A CN108019822A (en) | 2018-05-11 |
| CN108019822B true CN108019822B (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610937369.4A Active CN108019822B (en) | 2016-11-01 | 2016-11-01 | Indoor unit of air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113028502A (en) * | 2021-03-26 | 2021-06-25 | Tcl空调器(中山)有限公司 | Fan and ventilation equipment |
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| CN108019822A (en) | 2018-05-11 |
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Effective date of registration: 20200914 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Co-patentee after: Qingdao Haier Parts Co.,Ltd. Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,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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Effective date of registration: 20201104 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Qingdao Haier Parts Co.,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. Patentee before: Qingdao Haier Parts Co.,Ltd. |