CN107869758B - Indoor unit of air conditioner - Google Patents

Indoor unit of air conditioner Download PDF

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Publication number
CN107869758B
CN107869758B CN201610847847.2A CN201610847847A CN107869758B CN 107869758 B CN107869758 B CN 107869758B CN 201610847847 A CN201610847847 A CN 201610847847A CN 107869758 B CN107869758 B CN 107869758B
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China
Prior art keywords
air
ion wind
air outlet
generating device
lateral
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CN201610847847.2A
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CN107869758A (en
Inventor
李健
王永涛
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Qingdao Haier Parts Co., Ltd
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention relates to an air-conditioning indoor unit, comprising: the shell is provided with an air inlet, a first lateral air outlet and a second lateral air outlet; the first ion wind generating device and the second ion wind generating device are arranged in the shell side by side along the transverse direction; the first heat exchange device and the second heat exchange device which are vertically arranged and extend along the front-back direction are respectively arranged on a flow path from the first ion wind generating device to the first lateral air outlet and from the second ion wind generating device to the second lateral air outlet in the machine shell. The first ion wind generating device is configured to enable part of air entering from the air inlet to flow towards the first heat exchanging device and enable the air after heat exchange of the first heat exchanging device to flow towards the first lateral air outlet through electric field force, and the second ion wind generating device is configured to enable the other part of air entering from the air inlet to flow towards the second heat exchanging device and enable the air after heat exchange of the second heat exchanging device to flow towards the second lateral air outlet through electric field force.

Description

Indoor unit of air conditioner
Technical Field
The invention relates to the air conditioning technology, in particular to an air conditioner indoor unit.
Background
The air-out mode of traditional wall-hanging air conditioning indoor set is mostly air-out down, and this kind of air supply mode can lead to cold wind or hot-blast direct blowing to the human body, is unfavorable for user's comfort level to experience and healthy. The air outlet of the indoor unit of the air conditioner is usually provided with a guide plate so as to adjust the air outlet direction of the air outlet through the up-and-down swinging or the left-and-right swinging of the guide plate. However, this method has a limited adjustment range, and it is difficult to achieve a blowing requirement in a wide range. Even if the fluid is blown upwards or laterally by some unconventional means on the basis of the traditional wall-mounted air conditioner indoor unit, the loss of the wind speed and the wind pressure is large, so that the power consumption of the air conditioner indoor unit is high, and the noise is large.
In order to reduce noise, some of the air conditioning indoor units disclosed in the patent documents disclosed so far simply replace a fan with an ion wind device, however, the speed of the ion wind generated by the ion wind device is extremely limited, and the speed of the replaced air conditioning indoor unit is greatly reduced, which hardly meets the most basic use requirements of users. Due to the defects and impracticality of the existing technical solutions, the technology of blowing air by using ion wind has only remained on the most basic theoretical level.
In order to expand the air supply range, some air conditioning indoor units in the prior art are provided with a pair of air outlets at the left and right ends of the air conditioning indoor unit, and the air outlets at the left and right ends face the left side and the right side of the casing respectively. Although such an air conditioning indoor unit seems to achieve a relatively large air supply range, a wall-mounted air conditioning indoor unit is generally installed on a wall adjacent to a corner in a room, and air supplied through air outlets at left and right ends of the wall-mounted air conditioning indoor unit is generally blown directly onto or away from another wall perpendicular to the wall on which the indoor unit is installed, and both areas do not belong to a normal activity area of a user. Therefore, the actual air supply range of the air conditioning indoor unit is not much different from the air supply range of the conventional air conditioning indoor unit with only the lower air outlet. That is to say, the air conditioner indoor unit not only does not really enlarge the air supply range, but also greatly increases the manufacturing cost and the power consumption because two air outlets are additionally arranged and two fans are additionally arranged. To put it back, even if the installation position of the air-conditioning indoor unit is not considered, the air sent out by the air outlets of the air-conditioning indoor unit is directly blown out towards two opposite directions or mutually perpendicular directions, the air supply ranges of the air outlets are discontinuous and discontinuous, so that the indoor temperature cold and hot are uneven, and the comfort experience of users is seriously influenced.
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 having a wide air supply range and low noise.
The invention also aims to reduce the thickness of the indoor unit of the air conditioner in the front and back directions and improve the wind speed and the wind quantity of the ion wind generating device.
Still another object of the present invention is to form an encircling air supply effect to further expand the air supply range and improve the comfort experience of the user.
It is still another object of the present invention to further improve the air blowing amount, the air speed and the air blowing efficiency of the ion wind generating apparatus.
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 unit, wherein the shell is provided with an air inlet positioned at the upper part of the shell and a first lateral air outlet and a second lateral air outlet which are respectively positioned at two sides of the shell and face the lateral front of the shell;
the first ion wind generating device and the second ion wind generating device are arranged in the shell side by side along the transverse direction; and
a first heat exchange device and a second heat exchange device which are vertically arranged and extend in the front-rear direction are respectively arranged on the flow paths from the first ion wind generating device to the first lateral air outlet and from the second ion wind generating device to the second lateral air outlet in the machine shell, and are configured to exchange heat with air flowing through the first heat exchange device and the second heat exchange device; wherein
The first ion wind generating device is configured to cause a part of air entering through the air inlet to flow towards the first heat exchanging device and cause air after heat exchange through the first heat exchanging device to flow towards the first lateral air outlet through electric field force, and the second ion wind generating device is configured to cause another part of air entering through the air inlet to flow towards the second heat exchanging device and cause air after heat exchange through the second heat exchanging device to flow towards the second lateral air outlet through electric field force.
Optionally, a vertically-arranged partition plate is arranged between the first ion wind generating device and the second ion wind generating device, so that a first air supply channel formed among the air inlet, the first ion wind generating device, the first heat exchanging device and the first lateral air outlet is mutually independent from a second air supply channel formed among the air inlet, the second ion wind generating device, the second heat exchanging device and the second lateral air outlet.
Optionally, the upper end of the partition extends to an air inlet located at the upper portion of the housing, so as to divide the air entering through the air inlet into two parts for flowing to the first ion wind generating device and the second ion wind generating device respectively.
Optionally, an inner side edge of a vertical bisection plane of the first lateral air outlet, which extends in a front-rear direction near the air conditioning indoor unit, is more forward than an outer side edge of the first lateral air outlet, which is far away from the vertical bisection plane, so that the first lateral air outlet faces the outer side of the casing in the front direction; and is
The second lateral air outlet and the first lateral air outlet are symmetrically arranged.
Optionally, the indoor unit of an air conditioner further includes:
the first air guide channel and the second air guide channel respectively extend to the first lateral air outlet and the second lateral air outlet through the first heat exchange device and the second heat exchange device, so that air flowing to the first lateral air outlet after heat exchange of the first heat exchange device and air flowing to the second lateral air outlet after heat exchange of the second heat exchange device are respectively guided.
Optionally, the first air guide channel is columnar and extends along an arc-shaped curve from inside to outside; and is
The second air guide channel and the first air guide channel are symmetrically arranged.
Optionally, the housing comprises:
a rear case for constituting a rear portion of the cabinet;
a front panel disposed at a front side of the rear case to constitute a front portion of the cabinet; and
the first side air duct and the second side air duct are respectively positioned at the two transverse ends between the rear shell and the front panel, and the first side air outlet and the second side air outlet are respectively formed at the outer side end openings of the first side air duct and the second side air duct; wherein
The air inlet is formed in the rear shell, and the first air guide channel and the second air guide channel are formed in the first side air guide cylinder and the second side air guide cylinder respectively.
Optionally, the first ion wind generating device and the second ion wind generating device each include at least one discharge module, each discharge module includes a metal mesh and a plurality of discharge needles located inside the metal mesh and arranged in an array, wherein the discharge needles are arranged in the metal mesh, and each discharge module includes a plurality of discharge needles located inside the metal mesh and arranged in an array
The distance L between the needle point of each discharge needle and the metal mesh is set to satisfy the following conditions: l ═ aL1Wherein a is any constant in the range of 0.7-1.3, L1In order to make the wind speed of the ion wind at the wind speed central point of the metal mesh reach the maximum wind speed VmaxAnd the distance between the needle point of the discharge needle and the metal mesh, and the wind speed central point of the metal mesh is the projection point of the needle point of the discharge needle on the metal mesh.
Optionally, the distance R between the tips of two adjacent discharge needles is set so that it satisfies: 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, each of the first ion wind generating device and the second ion wind generating device comprises a plurality of discharging modules which are sequentially arranged and connected in parallel or in series, and each discharging module comprises a metal mesh and a plurality of discharging needles which are located on the inner side of the metal mesh and arranged in an array; and is
The discharge needles of two adjacent discharge modules are arranged in a straight-line opposite mode or in a staggered mode.
The air-conditioning indoor unit of the invention can ensure that the following two air outlets are arranged in the air-conditioning indoor unit, and the two ion wind generating devices are used for supplying air to the two air outlets, and the orientations of the two air outlets are specially designed: the air sent out by the two lateral air outlets is blown to the lateral front of the shell, and the air sent out by each air outlet can directly reach the normal moving area of a user, so that the air supply effect of the left front side and the right front side can be achieved, the limitation on the installation position of the indoor unit of the air conditioner is weakened, the air supply angle of the indoor unit of the air conditioner is increased, and the air supply range of the indoor unit of the air conditioner is expanded. Meanwhile, the ion wind generating device makes particles in the air obtain kinetic energy by means of electric field force, so that ion wind is formed. 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, so that the noise generated when the air conditioner indoor unit operates is reduced to a certain extent.
More importantly, the two heat exchange devices which are vertically arranged and extend along the front-back direction are arranged, and the positions of the two heat exchange devices and the two ion wind generating devices are specially designed, so that the heat exchange area for exchanging heat with air can be increased, the heat exchange efficiency of the air and the heat exchange devices is improved, the air flowing to each lateral air outlet is air after sufficient heat exchange, and the refrigerating/heating efficiency and the heating effect of the indoor unit of the air conditioner are improved.
Furthermore, because the two lateral air outlets of the indoor unit of the air conditioner are both towards the front of the outer side of the shell, the two lateral air outlets of the indoor unit of the air conditioner can form an encircling air supply effect, so that the air supply range of the indoor unit of the air conditioner is further expanded, cold air or hot air is prevented from being directly blown to a human body, the uniformity of indoor temperature is improved, the comfort level of the indoor unit of the air conditioner is further improved, and the use experience of a user is better.
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 discharge needles of the ion wind generating device and the metal net and reasonably distributing the position relationship among a plurality of discharge needles, thereby improving the wind supply speed, the wind supply quantity and the wind supply efficiency of the ion wind generating device.
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 structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic front view of an air conditioning indoor unit according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along section line B-B in FIG. 2;
fig. 4 is a schematic structural exploded view of an air conditioning indoor unit according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along section line A-A in FIG. 2;
FIG. 6 is a schematic structural view of a discharge module of the ion wind generating apparatus according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a discharge module according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention provides an air conditioning indoor unit, fig. 1 is a schematic structural view of an air conditioning indoor unit according to an embodiment of the present invention, fig. 2 is a schematic front view of an air conditioning indoor unit according to an embodiment of the present invention, fig. 3 is a schematic cross-sectional view taken along a sectional line B-B in fig. 2, fig. 4 is a schematic structural exploded view of an air conditioning indoor unit according to an embodiment of the present invention, and fig. 5 is a schematic cross-sectional view taken along a sectional line a-a in fig. 2. Referring to fig. 1 to 5, an air conditioning indoor unit 1 according to an embodiment of the present invention includes a cabinet 10, a first ion wind generating device 40 and a second ion wind generating device 50 that are horizontally disposed inside the cabinet 10 side by side, and a first heat exchanging device 20 and a second heat exchanging device 30 that are vertically disposed and extend in a front-rear direction.
The casing 10 has an air inlet 120 at an upper portion thereof and a first lateral air outlet 112 and a second lateral air outlet 113 at two sides of the casing 10 and facing a lateral front of the casing 10. Specifically, the design of the orientation of each air outlet of the invention can be such that: the air sent out from the first lateral air outlet 112 and the second lateral air outlet 113 is blown to the lateral front of the casing 10, and the air sent out from each air outlet can directly reach the normal moving area of the user, so that the air supply effect of the left front side and the right front side can be achieved, the limitation on the installation position of the indoor unit 1 of the air conditioner is weakened, the air supply angle of the indoor unit 1 of the air conditioner is increased, the air supply range is expanded, and the refrigerating/heating efficiency is improved.
The first heat exchanging device 20 and the second heat exchanging device 30 are respectively disposed on a flow path from the first ion wind generating device 40 to the first lateral wind outlet 112 and from the second ion wind generating device 50 to the second lateral wind outlet 113 in the cabinet 10, and are configured to exchange heat with air flowing therethrough, so that the air is changed into cold air or hot air. Specifically, the first heat exchange device 20 and the second heat exchange device 30 may be both vertical plate-shaped evaporators to reduce the volume of the indoor unit of the air conditioner. The first heat exchange device 20 and the second heat exchange device 30 may be parallel to each other, or may form an angle between upper and lower portions of the two. The first and second heat exchanging devices 20 and 30 may be disposed at lateral outer sides of the first and second ion wind generating devices 40 and 50, respectively. The height of the first ion wind generating device 40 in the vertical direction and the thickness of the first ion wind generating device 40 in the front-back direction can be respectively matched with the height of the first heat exchanging device 20 in the vertical direction and the width of the first heat exchanging device 20 in the front-back direction, so that the ion wind generated by the first ion wind generating device 40 can be ensured to flow to the first heat exchanging device 20 as far as possible. Similarly, the height and the front-back thickness of the second ion wind generating device 50 in the vertical direction may respectively match with the height and the front-back width of the second heat exchanging device 30 in the vertical direction, so as to ensure that all the ion wind generated by the second ion wind generating device 50 flows to the second heat exchanging device 30 as much as possible.
The first ion wind generating device 40 is configured to cause a part of the air entering through the air inlet 120 to flow toward the first heat exchanging device 20 and cause the air heat-exchanged by the first heat exchanging device 20 to flow toward the first lateral air outlet 112 by an electric force, and the second ion wind generating device 50 is configured to cause another part of the air entering through the air inlet 120 to flow toward the second heat exchanging device 30 and cause the air heat-exchanged by the second heat exchanging device 30 to flow toward the second lateral air outlet 113 by an electric force.
That is, the present invention supplies air to the two side air outlets through the two ion wind generating devices, on one hand, the whole air supply amount and the air supply speed of the air conditioner indoor unit 1 are ensured, and on the other hand, the two ion wind generating devices make particles in the air obtain kinetic energy by means of electric field force, so that ion wind is formed. 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.
It should be particularly emphasized that, by arranging two heat exchange devices which are vertically arranged and extend along the front-back direction and specially designing the positions of the two heat exchange devices and the two ion wind generating devices, the heat exchange area for exchanging heat with air can be increased, and the heat exchange efficiency of the air and the heat exchange devices is improved, so that the air flowing to each lateral air outlet is the air after sufficient heat exchange, and the refrigerating/heating efficiency and effect of the indoor unit 1 of the air conditioner are improved.
In summary, the air-conditioning indoor unit 1 of the present invention originally improves the ion wind blowing technology which stays 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 two heat exchange devices and the two ion wind generating devices, so as to solve the technical problems of small blowing range, large noise, poor experience effect, poor appearance effect, etc. existing in the prior art with 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 some embodiments of the present invention, a vertically disposed partition 90 is disposed between the first ion wind generating device 40 and the second ion wind generating device 50, so that a first air supply channel formed between the air inlet 120, the first ion wind generating device 40, the first heat exchanging device 20, and the first lateral air outlet 112 is independent from a second air supply channel formed between the air inlet 120, the second ion wind generating device 50, the second heat exchanging device 30, and the second lateral air outlet 113. That is, the present invention can form two completely separated and independent air supply ducts in the casing 10 by providing the partition plate 90. Therefore, the two air flows flowing to the first ion wind generating device 40 and the second ion wind generating device 50 can be prevented from generating mutual interference, and phenomena such as turbulent flow, turbulent flow or mixed flow can be avoided, so that the air inlet speed and the air supply speed of the indoor unit 1 of the air conditioner are improved, and the air outlet speed is further improved.
Further, the upper end of the partition plate 90 extends to the air inlet 120 at the upper portion of the cabinet 10 to divide the air introduced through the air inlet 120 into two parts for flowing to the first ion wind generating device 40 and the second ion wind generating device 50, respectively. Specifically, the upper end of the partition plate 90 may abut against the upper portion of the casing 10, so as to divide the air inlet 120 into two sub air inlets, which are driven by the first ion wind generating device 40 and the second ion wind generating device 50 respectively to introduce the ambient air, in the casing 10, thereby separating the air flows of the two air supply ducts at the source of the inlet air, and further reducing the possibility of interference between the two air flows.
In some embodiments of the present invention, referring to fig. 2 and 3, an inner side edge 1121 of the first lateral air outlet 112, which is close to a vertical bisecting plane S of the air conditioning indoor unit 1 and extends in the front-rear direction, is located more forward than an outer side edge 1122 of the first lateral air outlet 112, which is far from the vertical bisecting plane S, so that the first lateral air outlet 112 faces the outer side front of the casing 10. That is, the inner edge 1121 and the outer edge 1122 of the first lateral air outlet 112 are located at different positions in the lateral direction and the front-rear direction, the inner edge 1121 is closer to the vertically bisected plane of the air conditioning indoor unit 1 extending in the front-rear direction than the outer edge 1122 thereof, and the inner edge 1121 is located laterally forward of the outer edge 1122 thereof, so that the first lateral air outlet 112 is directed obliquely outward toward the front of the cabinet.
Further, the second lateral air outlet 113 and the first lateral air outlet 112 are symmetrically disposed. That is, the inner edge 1131 of the second lateral outlet 113 is more forward than the outer edge 1132 of the second lateral outlet 113. In other words, the inside edge 1131 and the outside edge 1132 of the second lateral air outlet 113 are located at different positions in the lateral direction and the front-rear direction, the inside edge 1131 is closer to the vertical bisecting plane S of the indoor unit 1 extending in the front-rear direction than the outside edge 1132, and the inside edge 1131 is located laterally forward of the outside edge 1132, so that the second lateral air outlet 113 faces obliquely outward toward the front of the cabinet.
Therefore, the two lateral air outlets of the indoor air conditioner 1 can respectively supply air towards the front of the transverse outer side of the casing 10 to form an encircling air supply effect, so that the air supply range of the indoor air conditioner 1 is further expanded, cold air or hot air is prevented from directly blowing to a human body, the uniformity of indoor temperature is improved, the comfort level of the indoor air conditioner 1 is further improved, and the use experience of a user is better.
In some embodiments of the present invention, referring to fig. 3 and 4, the indoor unit 1 of the air conditioner further includes a first air guiding channel 61 and a second air guiding channel 62. The first air guiding channel 61 and the second air guiding channel 62 are respectively bent and extended from the first heat exchanging device 20 and the second heat exchanging device 30 to the first lateral air outlet 112 and the second lateral air outlet 113, so as to respectively guide the air which is subjected to heat exchange by the first heat exchanging device 20 and flows to the first lateral air outlet 112 and the air which is subjected to heat exchange by the second heat exchanging device 30 and flows to the second lateral air outlet 113. Therefore, the air sent out from the two lateral air outlets can be blown to the left front side and the right front side of the shell, and independent air supply channels which are not influenced mutually can be formed between the two ion air generating devices. The air conditioner indoor unit 1 can further ensure that an encircling air supply effect is formed, the resistance in the air flow flowing process can be reduced, and the air speed and the air volume of the two lateral air outlets are improved.
In some embodiments of the present invention, the first wind guiding channel 61 is a column shape, which extends along a circular arc curve from inside to outside. It will be understood by those skilled in the art that the terms "inner" and "outer" as used herein refer to both the interior and exterior of the enclosure 10. The second air guiding channel 62 and the first air guiding channel 61 are symmetrically arranged, that is, the second air guiding channel 62 is also tubular, and the cross section of the second air guiding channel extends along the same circular arc-shaped curve from inside to outside. The circle center of the circle of the circular arc curve is positioned at the front side of the circular arc curve, namely the circular arc curve has a shape which is convexly curved backwards. Therefore, airflow can flow more smoothly, airflow resistance is further reduced, and the air speed and the air volume of the lateral air outlet are improved; and the first lateral air outlet 112 and the second lateral air outlet 113 can more easily form a looping air supply effect, so that the indoor unit 1 of the air conditioner is ensured to have the best comfort level.
In some embodiments of the present invention, the cabinet 10 includes a rear case 14, a front panel 13, and a first side air duct 151 and a second side air duct 152. The rear case 14 serves to constitute a rear portion of the cabinet 10. The front panel 13 is disposed at a front side of the rear case 14 to constitute a front portion of the cabinet 10. The first side air duct 151 and the second side air duct 152 are respectively located at two lateral ends between the rear casing 14 and the front panel 13, that is, the first side air duct 151 and the second side air duct 152 are both located in a space defined between the rear casing 14 and the front panel 13 and are respectively located at two lateral ends of the space. The outer ports of the first and second side air ducts 151 and 152 form the first and second lateral outlets 112 and 113, respectively.
It is emphasized that the outside ports of the first and second side wind scoops 151 and 152 mean their respective ports exposed to the outside of the cabinet 10, and accordingly, the first and second side wind scoops 151 and 152 also have inside ports hidden inside the cabinet 10, respectively. The inner side ports of the first and second side air ducts 151 and 152 are connected to the first and second heat exchange devices 20 and 30, respectively.
Further, the intake vent 120 may be formed on the rear housing 14. Specifically, the rear case 14 may have a body 141 extending vertically, and an upper edge 142 and a lower edge 143 extending forward from both upper and lower sides of the body 141. The body 141 may be provided with a hanging hole for hanging the indoor unit 1 of an air conditioner on a wall. The air inlet 120 may be disposed at the upper edge portion 142. The upper and lower ends of the partition 90 can abut against the upper edge 142 and the lower edge 143 of the rear case 14, respectively. Further, the intake vent 120 may include a plurality of vent holes relatively uniformly distributed at the rear side of the upper rim portion 142 to ensure the uniformity of intake air.
Further, the first air guiding passage 61 and the second air guiding passage 62 are formed inside the first side air duct 151 and the second side air duct 152, respectively. Specifically, the first side air duct 151 may be a tubular body that is bent and extended from the first heat exchanging device 20 to the first lateral air outlet 112 along the arc-shaped curve, and the tubular body defines the first air guiding channel 61 therein. Similarly, the second lateral air guiding duct 152 may be a tubular body that is bent and extended from the second heat exchanging device 30 to the second lateral air outlet 113 along the arc-shaped curve, and the second air guiding channel 62 is defined in the tubular body. Thus, the width of the air conditioning indoor unit 1 in the lateral direction can be reduced to further reduce the size of the space occupied by the air conditioning indoor unit.
In some embodiments of the present invention, the front edges of the outside ports of the first and second side air guiding ducts 151 and 152 are respectively matched with the edge shapes of the two lateral sides of the front panel 13, and the edges of the outside ports of the first and second side air guiding ducts 151 and 152 except the front edges are respectively matched with the edge shapes of the two lateral sides of the rear housing 14. That is, the front edges of the outside ports of the first and second side air ducts 151 and 152 are respectively matched with the edge shapes of the two lateral sides of the front panel 13, and the edges of the outside ports of the first and second side air ducts 151 and 152 except the front edges are respectively matched with the edge shapes of the two lateral sides of the rear case 14. Therefore, the structure of the air-conditioning indoor unit 1 can be simplified, and the appearance consistency and the integral effect of the air-conditioning indoor unit 1 can be enhanced.
Fig. 6 is a schematic structural view of a discharge module of the ion wind generating apparatus according to an embodiment of the present invention. In some embodiments of the present invention, referring to fig. 6, each of the first ion wind generating device 40 and the second ion wind generating device 50 includes at least one discharge module 410. Each discharge module 410 has a metal mesh 411 and a plurality of discharge needles 412 located inside the metal mesh 411 and arranged in an array. The needle point of the discharge needle 412 is close to the metal net 411, positive and negative high voltage electrodes are respectively applied on the discharge needle 412 and the metal net 411, the discharge needle 412 is equivalent to a radiation electrode for generating corona discharge, and the metal net 411 is equivalent to a receiving electrode.
It should be emphasized that the inner side referred to herein means a side of the metal net 411 toward the geometric center of the cabinet 10, and the outer side opposite to the inner side means a side of the metal net 411 toward the outside of the cabinet 10. That is, the flow direction of the ion wind generated by each discharge module 410 is from the inside to the outside, and the arrangement direction of the plurality of discharge needles 412 and the metal mesh 411 is the same as the flow direction of the ion wind.
Fig. 7 is a schematic cross-sectional view of a discharge module according to an embodiment of the present invention. Referring to fig. 7, in order to increase the blowing speed of the ion wind generating apparatus, the designer of the present invention has performed a number of wind speed measurement experiments, and as a result of the experiments, it was found that the distance L between the tip of each discharge needle 412 and the metal mesh 411 is set to satisfy L ═ aL1(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 center point of the metal mesh 411 reaches the maximum wind speed VmaxThe distance between the tip of the discharge needle 412 and the metal mesh 411, and the wind speed center of the metal mesh 411The point is the projection point of the needle tip of the discharge needle 412 on the metal mesh 411), on one hand, the wind speed of the ion wind generated by the two ion wind generating devices can better meet the normal use requirement of a user, and on the other hand, the discharge needle 412 can be partially overlapped in the area where the metal mesh 411 generates effective ion wind to achieve the projection effect of the shadowless lamp, so that the ion wind distribution of the metal mesh 411 is more uniform.
In order to increase the amount of air supplied to the ion wind generating apparatus, the designer of the present invention has performed a large number of experiments for measuring the projection radius of the tips, and as a result of the experiments, it has been found that the distance R between the tips of two adjacent discharge needles 412 is set to satisfy the requirement of R ═ aR1(wherein, R1For the wind speed to reach the maximum wind speed VmaxB times the distance between the wind speed measuring point and the wind speed central point, wherein b is any constant in the range of 0.3-0.7, namely b can be 0.3, 0.4, 0.5, 0.6 or 0.7, and the value of a is the same as the above), the air volume of the ion wind generated by the two ion wind generating devices can better meet the normal use requirement of a user. Meanwhile, after the distance between two adjacent discharge needles 412 is specially designed, the mutual offset of wind speeds caused by too close distance between two adjacent discharge needles 412 can be avoided, and the reduction of wind volume and the uneven distribution of wind volume caused by too far distance between two discharge needles 412 can be avoided.
Therefore, the ion wind generating device can generate the ion wind with uniform and large wind quantity by reasonably designing the spatial position relationship between the discharge needles 412 and the metal mesh 411 and reasonably arranging the position relationship between the discharge needles 412, so that the wind speed, the wind quantity and the wind efficiency of the ion wind generating device are improved.
In some embodiments of the present invention, each of the first ion wind generating device 40 and the second ion wind generating device 50 includes a plurality of discharge modules 410 arranged in sequence and connected in parallel or in series, and each of the discharge modules 410 has a metal mesh 411 and a plurality of discharge needles 412 located inside the metal mesh 411 and arranged in an array. Therefore, a corona discharge phenomenon is generated between the discharge needle 412 in each discharge module 410 and the corresponding metal mesh 411, so that the ion wind can be accelerated for multiple times through the plurality of discharge modules 410, the superposition of the wind speed can be realized, and the higher wind outlet speed can be obtained. And negative pressure can be formed under the action of high-speed air outlet, so that the air inlet volume is further increased, and the air supply speed, the air supply volume and the air supply efficiency of the multi-stage ion air supply module are improved.
In some embodiments of the present invention, the discharge needles 412 of two adjacent discharge modules 410 are arranged in a straight pair, that is, the projections of the discharge needles 412 of each two adjacent discharge modules in the air outlet plane of the ion wind generating device coincide. Therefore, a larger and stronger electric field is generated in the region corresponding to the tip of each discharge needle 412, so that an ion wind with a higher local wind speed is generated in the region, and the ion wind blows on the user body and has a stronger wind feeling. In other words, this arrangement can obtain a local large wind speed near each wind speed center point of the metal mesh 411, so as to improve the wind feeling when the air-conditioning indoor unit 1 is driven by the ion wind generating device to supply wind alone.
In some alternative embodiments of the present invention, the discharge needles 412 of two adjacent discharge modules 410 are arranged in a staggered manner. One of the dislocation arrangement modes is as follows: the discharge needles 412 of every two adjacent discharge modules are arranged in a staggered manner in a direction perpendicular to the air outlet surface of the ion wind generating device 10, and the projections of the corresponding discharge needles 412 of every two adjacent discharge modules in the air outlet surface of the ion wind generating device 10 are on the same horizontal line (i.e., the discharge needles 412 of every two adjacent discharge modules are arranged in a staggered manner, but the heights of the corresponding discharge needles 412 are the same). Therefore, uniform soft wind can be generated in a plurality of linear regions in the horizontal direction, and the superposition of a plurality of discharge modules can form a larger and stronger electric field in the linear regions, so that the wind speed of the ion wind in the linear regions is relatively higher. Further, the projections of each group of three adjacent discharge needles formed by the discharge needles 412 of the plurality of discharge modules in the horizontal plane all form an isosceles triangle, so as to ensure that the ion wind generated by the ion wind generating device is distributed uniformly.
Another staggered arrangement mode is as follows: the discharge needles 412 of every two adjacent discharge modules are arranged in a staggered manner in the direction perpendicular to the air outlet surface of the ion wind generating device and in the vertical 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. That is, the discharge needles 412 of each two adjacent discharge modules 410 are staggered from each other, so that the gaps between the discharge needles 412 of each discharge module 410 can be filled. Accordingly, relatively uniform ion wind can be formed in the entire area of the expanded metal 411, and the entire amount of wind can be increased. Further, the projections of each group of three adjacent discharge needles formed by the discharge needles 412 of the plurality of discharge modules in the air outlet surface of the ion wind generating device all form an equilateral triangle, so as to ensure that the ion wind generated by the ion wind generating device is distributed more uniformly.
In some embodiments of the present invention, referring to fig. 6, each discharge module 410 further comprises a housing 414 having at least four peripheral wall plates, and a side of the housing 414 facing away from the heat exchanging device adjacent thereto is hollowed out or provided with a vent to allow ambient air to flow into the housing 414. Each discharge module 410 further includes a plurality of metal conductive bars 413. Each of the metal conductive bars 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 metal discharge needles 412.
Specifically, the plurality of discharge needles 412 are uniformly distributed on the outer side of the metal conductive strip 413 facing the metal mesh 411. The outer surface of each metal conductive bar 413 is provided with a plurality of pinholes for installing the discharge needles 412. The aperture of the pinhole is slightly smaller than the diameter of the discharge needle 412 so that the pinhole is in interference fit with the discharge needle 412. The filling layer filled by the welding process is arranged around the pin hole inserted into the discharge needle 412, that is, the filling layer filled by the welding process is arranged around the discharge needle 412 of the pin hole, so as to ensure that the discharge needle 412 and the conductive layer in the metal conductive bar 413 are kept in good electrical connection, and simultaneously, the conductive layer can be strictly prevented from being exposed to the outside, thereby avoiding the phenomena of random discharge or sparking.
It should be understood by those skilled in the art that, unless otherwise specified, terms used to indicate orientation or positional relationship in the embodiments of the present invention such as "upper", "lower", "inner", "outer", "lateral", "front", "rear", and the like are based on the actual usage state of the air conditioning indoor unit 1, and these terms are only used to facilitate description and understanding of the technical solutions of the present invention, and do not indicate or imply that the devices or components referred to must have specific orientations, and therefore, should not be construed as limiting the present invention.
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 (7)

1. An indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a fan and a control unit, wherein the shell is provided with an air inlet positioned at the upper part of the shell and a first lateral air outlet and a second lateral air outlet which are respectively positioned at two sides of the shell and face the lateral front of the shell;
the first ion wind generating device and the second ion wind generating device are arranged in the shell side by side along the transverse direction; and
a first heat exchange device and a second heat exchange device which are vertically arranged and extend in the front-rear direction are respectively arranged on the flow paths from the first ion wind generating device to the first lateral air outlet and from the second ion wind generating device to the second lateral air outlet in the machine shell, and are configured to exchange heat with air flowing through the first heat exchange device and the second heat exchange device; wherein
The first ion wind generating device is configured to enable part of air entering through the air inlet to flow towards the first heat exchanging device and enable air after heat exchange of the first heat exchanging device to flow towards the first lateral air outlet through electric field force, and the second ion wind generating device is configured to enable another part of air entering through the air inlet to flow towards the second heat exchanging device and enable air after heat exchange of the second heat exchanging device to flow towards the second lateral air outlet through electric field force;
the first ion wind generating device and the second ion wind generating device respectively comprise a plurality of discharging modules which are sequentially arranged and connected in parallel or in series, each discharging module is provided with a metal net and a plurality of discharging needles which are positioned on the inner side of the metal net and arranged in an array manner, wherein the discharging needles are arranged in parallel or in series, and the discharging needles are arranged on the inner side of the metal net
The distance L between the needle point of each discharge needle and the metal mesh is set to satisfy the following conditions: l ═ aL1Wherein a is any constant in the range of 0.7-1.3, L1In order to make the wind speed of the ion wind at the wind speed central point of the metal mesh reach the maximum wind speed VmaxThe distance between the needle point of the discharge needle and the metal mesh is equal to the distance between the needle point of the discharge needle and the metal mesh, and the wind speed central point of the metal mesh is a projection point of the needle point of the discharge needle on the metal mesh;
the distance R between the needle points of two adjacent discharge needles is set to satisfy the following conditions: r ═ aR1Wherein R is1For the wind speed to reach the maximum wind speed VmaxB is the distance between the wind speed measuring point and the wind speed central point, and b is any constant within the range of 0.3-0.7;
the discharge needles of every two adjacent discharge modules are arranged in a staggered manner in the direction vertical to the air outlet surface of the ion wind generating device and in the vertical direction;
the projections of three adjacent discharge needles in each group formed by the discharge needles of the plurality of discharge modules in the air outlet surface of the ion wind generating device form an equilateral triangle.
2. An indoor unit of an air conditioner according to claim 1,
a vertically-arranged partition plate is arranged between the first ion wind generating device and the second ion wind generating device, so that a first air supply channel formed among the air inlet, the first ion wind generating device, the first heat exchange device and the first lateral air outlet is mutually independent from a second air supply channel formed among the air inlet, the second ion wind generating device, the second heat exchange device and the second lateral air outlet.
3. An indoor unit of an air conditioner according to claim 2,
the upper end of the partition board extends to an air inlet positioned at the upper part of the machine shell so as to divide the air entering from the air inlet into two parts which are respectively used for flowing to the first ion wind generating device and the second ion wind generating device.
4. An indoor unit of an air conditioner according to claim 1,
the inner side edge of a vertical bisection plane of the first lateral air outlet, which extends in the front-rear direction and is close to the indoor unit of the air conditioner, is more forward than the outer side edge of the first lateral air outlet, which is far away from the vertical bisection plane, so that the first lateral air outlet faces the front of the outer side of the machine shell; and is
The second lateral air outlet and the first lateral air outlet are symmetrically arranged.
5. An indoor unit of an air conditioner according to claim 1, further comprising:
the first air guide channel and the second air guide channel respectively extend to the first lateral air outlet and the second lateral air outlet through the first heat exchange device and the second heat exchange device, so that air flowing to the first lateral air outlet after heat exchange of the first heat exchange device and air flowing to the second lateral air outlet after heat exchange of the second heat exchange device are respectively guided.
6. An indoor unit of an air conditioner according to claim 5,
the first air guide channel is columnar and extends along an arc-shaped curve from inside to outside; and is
The second air guide channel and the first air guide channel are symmetrically arranged.
7. An indoor unit of an air conditioner according to claim 5, wherein the casing includes:
a rear case for constituting a rear portion of the cabinet;
a front panel disposed at a front side of the rear case to constitute a front portion of the cabinet; and
the first side air duct and the second side air duct are respectively positioned at the two transverse ends between the rear shell and the front panel, and the first side air outlet and the second side air outlet are respectively formed at the outer side end openings of the first side air duct and the second side air duct; wherein
The air inlet is formed in the rear shell, and the first air guide channel and the second air guide channel are formed in the first side air guide cylinder and the second side air guide cylinder respectively.
CN201610847847.2A 2016-09-23 2016-09-23 Indoor unit of air conditioner Active CN107869758B (en)

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CN107869758B true CN107869758B (en) 2020-05-29

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002130718A (en) * 2000-10-20 2002-05-09 Fujitsu General Ltd Air conditioner
CN1465924A (en) * 2002-07-04 2004-01-07 三星电子株式会社 Air conditioner
JP2005069565A (en) * 2003-08-25 2005-03-17 Daikin Ind Ltd Indoor unit of air conditioner
CN105283046A (en) * 2015-10-30 2016-01-27 江苏大学 Ionic wind radiating device
CN105299744A (en) * 2014-06-23 2016-02-03 青岛海尔空调电子有限公司 Ion wind indoor unit, ion wind air conditioner system and control method
CN105627430A (en) * 2014-11-29 2016-06-01 青岛海尔空调器有限总公司 Split-type wall-mounted air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002130718A (en) * 2000-10-20 2002-05-09 Fujitsu General Ltd Air conditioner
CN1465924A (en) * 2002-07-04 2004-01-07 三星电子株式会社 Air conditioner
JP2005069565A (en) * 2003-08-25 2005-03-17 Daikin Ind Ltd Indoor unit of air conditioner
CN105299744A (en) * 2014-06-23 2016-02-03 青岛海尔空调电子有限公司 Ion wind indoor unit, ion wind air conditioner system and control method
CN105627430A (en) * 2014-11-29 2016-06-01 青岛海尔空调器有限总公司 Split-type wall-mounted air conditioner
CN105283046A (en) * 2015-10-30 2016-01-27 江苏大学 Ionic wind radiating device

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