WO2017190343A1 - 一种混合出风空调室内机 - Google Patents

一种混合出风空调室内机 Download PDF

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Publication number
WO2017190343A1
WO2017190343A1 PCT/CN2016/081251 CN2016081251W WO2017190343A1 WO 2017190343 A1 WO2017190343 A1 WO 2017190343A1 CN 2016081251 W CN2016081251 W CN 2016081251W WO 2017190343 A1 WO2017190343 A1 WO 2017190343A1
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air
flow impeller
cross
indoor unit
air outlet
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PCT/CN2016/081251
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English (en)
French (fr)
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孙海潮
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孙海潮
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Priority to PCT/CN2016/081251 priority Critical patent/WO2017190343A1/zh
Publication of WO2017190343A1 publication Critical patent/WO2017190343A1/zh

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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

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  • the invention belongs to the technical field of air conditioning and relates only to an indoor unit of an air conditioner.
  • the existing air-conditioning indoor unit When the existing air-conditioning indoor unit is in operation, the indoor air is sucked into the indoor unit by the cross-flow impeller, and is exchanged with the heat exchanger to become heat-exchanged air, which is discharged by the indoor unit air outlet duct.
  • the existing air-conditioning indoor unit air outlet duct is closed, and the heat exchange air is isolated from the indoor air outside the air outlet duct before being discharged. Therefore, all the air outlet ducts are exhausted by heat exchange air, especially in the air.
  • the temperature difference between the inlet and outlet of the air conditioner indoor unit reaches about 16 degrees, and a large temperature difference is formed with respect to the original indoor air temperature.
  • the air conditioner When the air adjustment reaches the set temperature, the air conditioner is intermittently operated around the set temperature to regulate the room temperature.
  • the outlet air temperature of the indoor unit will be lower, far lower than the temperature range of the human body comfort.
  • the human body When the human body is subjected to the direct blow of the indoor unit, it will feel very cold and feel uncomfortable, often subject to such temperature difference.
  • This problem is particularly acute in the elderly, the sick and the disabled, and the children's users. Therefore, how to design a kind of air-conditioning air outlet, which makes the air outlet softer and closer to the temperature range of human body comfort, thus eliminating the air-conditioning indoor unit of "air-conditioning disease" has become a long-awaited solution but has never been obtained.
  • Successful technical problems When the human body is subjected to the direct blow of the indoor unit, it will feel very cold and feel uncomfortable, often subject to such temperature difference.
  • the object of the present invention is to provide a mixed air-conditioning air conditioner indoor device, which can solve the problem that the existing air-conditioning indoor unit is not soft enough, the temperature difference between the air outlet and the indoor air is large, the human body feels uncomfortable, and the problem of "air-conditioning disease" is easily obtained, and At the same time, the invention also has the indoor air conditioning cycle acceleration, the time required to reach the set temperature is reduced, and the function of saving time and electricity is saved.
  • a mixed air-conditioning air conditioner indoor unit including an indoor unit casing, a cross-flow impeller air outlet duct, and a cross-flow impeller air outlet duct wall, characterized in that: An air guiding opening is formed on the wall of the flow impeller air outlet duct, the air guiding opening is perpendicular to the axis line of the indoor machine through the impeller, and the projection line in the projection plane of the indoor unit air outlet is located at the lower left side, intersecting the wind tunnel wall
  • the clockwise angle of the positive direction of the tangential line of the outlet duct wall of the upper cut point is greater than or equal to 12° to less than or equal to 198°
  • an air inlet fan is arranged outside the wind tunnel wall of the cross flow impeller, and the air outlet of the air inlet fan is connected.
  • the air inlet duct, the air outlet of the air inlet duct and the air inlet opening of the wind tunnel of the cross flow impeller are connected.
  • the object of the present invention can also be achieved by a hybrid air-conditioning indoor unit, including an indoor unit casing, a cross-flow impeller air outlet duct, and a cross-flow impeller air duct wall, which are characterized by: An air guiding opening is formed on the wall of the cross-flow impeller air outlet duct, the air guiding opening is perpendicular to the axis line of the indoor machine through the impeller, and the projection line in the projection plane of the indoor unit air outlet is located at the lower left side, intersecting the wind tunnel wall
  • the point of the tangential direction of the tangential line of the outlet duct of the upper cut point is a clockwise angle of 12° or more to 198° or less, and an air inlet fan is arranged on the air inlet opening of the wind tunnel wall of the cross flow impeller.
  • the draft fan of the present invention is an axial fan.
  • the number of axial flow air intake fans of the present invention is 3 to 20, 3 to 20 axial flow air intake fans are arranged along the axial direction of the cross flow impeller, and 3 to 20 axial flow air intake fan blades are rotating shaft axes.
  • the connection is parallel to the axis of the rotating shaft of the indoor machine.
  • the minimum angle of the projection extension line of the axial line of the axial fan of the axial flow fan of the present invention and the projection line of the air inlet of the cross flow impeller is equal to or greater than 15 degrees.
  • the minimum angle of the projection extension line of the axial line of the axial fan of the axial flow fan of the present invention and the projection line of the air inlet of the cross flow impeller is equal to or greater than 60 degrees.
  • the vertical distance of the projection extension line of the projection line of the axial flow opening shaft of the axial flow fan of the present invention to the air inlet opening of the cross flow impeller air outlet wall is less than or equal to 180 mm.
  • the vertical distance of the projection extension line of the projection line of the axial flow of the axial flow fan of the axial flow fan to the air outlet of the cross flow impeller is equal to or greater than or equal to 100 mm.
  • the air conditioning indoor unit of the present invention is specifically an indoor unit that uses a cross-flow impeller to enter and exit the wind. Therefore, the cross-flow impeller air outlet duct of the present invention is an indoor unit air outlet duct, and the cross-flow impeller air duct is generally The vortex tongue and the volute of the wind duct part and the side plates form a rectangular air duct.
  • the two side plates are divided into two left and right sides, and the left and right sides of the board will be the volute tongue and
  • the volute tongue and the volute of the cross flow impeller are the cross duct impeller air duct wall, and the other two sides are the cross flow impeller air duct side plate, adopting the cross flow.
  • the air-conditioning indoor unit of the impeller enters and exits the air is a rectangular parallelepiped, usually the air is introduced above the casing of the indoor unit, and the air is discharged from the lower front side.
  • the air inlet of the present invention is disposed on the volute of the wind tunnel wall of the cross-flow impeller, which is generally called The outlet of the impeller is arranged on the volute of the air duct wall. Therefore, the ventilating opening is formed on the volute of the cross-flow impeller air outlet duct wall of the cross-flow impeller.
  • the cross-flow impeller has a long cylindrical shape
  • the cross-flow impeller has a rectangular cross-section of the air outlet duct
  • the cross-section of the air outlet of the indoor unit is also rectangular
  • the axial line of the cross-flow impeller is parallel to the long center line of the rectangular shape, so
  • the air inlet opening on the wall of the flow impeller is also corresponding to the rectangle with the long center line parallel thereto.
  • the air guiding port forming the rectangle is perpendicular to the axial line of the indoor flow through impeller, and the projection line in the projection plane of the indoor unit air outlet is located on the lower left side, and the direction of the wind direction of the cross-flow impeller air duct is taken along the direction
  • the wind tunnel 18 line, the point where the first intersection with the outlet duct 18 line is the upper tangent point A intersecting the outlet duct wall, and the corresponding other tangent point is the undercut point intersecting the outlet duct wall. B, see Figure 2.
  • the air inlet opening on the wind tunnel wall of the cross-flow impeller can also be regarded as a rectangular plate with circular, elliptical, square, rectangular and other shapes of air inlets as long as these air inlets meet
  • the extension line of the projection line in the projection plane perpendicular to the indoor machine through the impeller axis line, the indoor unit air outlet is located on the lower left side, and the point where the intersection with the outlet duct wall is the upper cut point of the outlet duct wall tangent
  • the clockwise angle of the positive direction segment is greater than or equal to 12° to less than or equal to 198°.
  • the invention is perpendicular to the axial center of the indoor flow impeller, and the projection plane of the indoor air outlet on the lower left side is the right side view of the air conditioner indoor unit, that is, FIG. 1 of the present invention, and vice versa, the left side view of the air conditioner indoor unit.
  • the outlet of the indoor unit is located on the lower left side, that is, the direction of the cross-flow impeller is the lower left side.
  • the characteristic of the indoor unit's cross-flow impeller refracting the wind determines that the profile of the outlet duct is an arc-shaped line that curves toward the axis of the cross-flow impeller, such as simply opening a wall on the original outlet duct.
  • the upper and lower tangent points of the air inlet are still on the arc-shaped curved air duct wall line, and the air flowing out of the cross-flow impeller will directly flow toward the air inlet at the air inlet to form a positive pressure.
  • the projection line connecting the upper cut point of the air inlet to the lower cut point must be The relative positional structure relationship on the wind tunnel wall satisfies the point where the air inlet is perpendicular to the axial center of the indoor machine, and the projection line in the projection plane of the indoor unit air outlet is located on the lower left side, and the point intersecting the wind tunnel wall.
  • the technical feature of the clockwise angle of the positive direction of the tangential line of the outlet duct of the upper cut point is greater than or equal to 12° to less than or equal to 198°” to form a fully negative air inlet.
  • the line connecting the upper point A to the lower point B is the projection line composed of the upper tangent point and the lower tangent point, and the intersection point of the outlet duct wall is the upper cut point of the outlet duct wall tangent. It means that the above-mentioned tangent point A is the tangent point, and the 18-line of the outlet duct wall where the above-mentioned tangent point is located is the tangent of the tangent point at the upper tangent point A, that is, 16 in the drawing, and 19 is the cross-flow impeller.
  • the direction of the tangential line 16 is the same direction as the tangential direction of the cross-flow impeller, and the line segment of the tangent point A on the over-cutting line and the direction of the cross-flow impeller 19 is the tangential positive direction. Otherwise, Tangential negative direction segment.
  • the clockwise angle refers to the line connecting the upper cutting point A to the lower cutting point B. The cutting point A is the origin, and the clockwise direction is shifted to the tangent.
  • the angle between the positive direction segments i.e., the direction of the arrows in 17, 17 of Fig. 2, is indicated as clockwise. If in the left view of the air conditioner indoor unit, the clockwise angle is the counterclockwise angle, and the two properties are the same.
  • the straight line formed by the wind duct wall profile is the cut line of the outlet duct wall where the upper cut point A is located.
  • the air inlet can form a negative pressure region, and the indoor air passes through the airflow fan.
  • the air inlet opening on the impeller air outlet duct wall is introduced without hindrance to mix with the heat exchange air in the cross flow impeller air outlet duct to soften the mixed air exhausting the indoor unit air outlet to achieve the object of the present invention. Otherwise,
  • the air outlet duct is curved curved toward the axial direction of the cross-flow impeller.
  • the heat exchange air circulated by the cross-flow impeller cannot guarantee a complete negative pressure region at the air inlet, and it is possible to form both the induced and the outgoing air.
  • the object of the invention is not only impossible, but also the heat exchange air in the air duct of the cross flow impeller is shunted out, resulting in the indoor unit. The heat exchange is lost.
  • the indoor air is introduced by the air-inducing fan through the air inlet of the cross-flow impeller air duct wall without any hindrance, and is mixed with the heat exchange air in the cross-flow impeller air duct to form a soft mixed air outlet.
  • the air outlet of the indoor unit is exhausted, in the cooling mode, the heat exchange energy carried by the heat exchange air flowing out from the cross-flow impeller is constant, and after the mixed air is formed, the total air output is increased, and the heat flowing out of the cross-flow impeller is increased.
  • the sum of the air volume introduced by the exchanged air volume and the air intake fan increases the temperature of the formed mixed air, and the outlet air temperature is increased, so that the air outlet of the indoor air outlet is blown to the human body and the human body feels cold wind.
  • the air volume introduced by the induced draft fan itself has a certain wind energy.
  • the speed of the induced draft fan makes the flow rate of the introduced air larger than the cross flow impeller
  • the outlet wind speed and the exit range of the indoor unit that obtain the increased mixed air will be greater than the simple heat exchange of the original indoor unit. Since the air outlet of the indoor unit usually shrinks into a narrow rectangular slit, the airflow of the indoor unit increases and a jet is formed through the rectangular slit, and the jet is mixed with the air near the air outlet of the indoor unit to form a fluid, so that the air is discharged.
  • the temperature is further improved, which further improves the comfort of the human body and greatly improves the effect of eliminating the "air conditioning disease".
  • the air volume, wind speed, and airflow range are increased, the indoor air circulation is accelerated, and the time required to reach the set temperature is reduced, thereby achieving the object of the invention of saving energy and saving energy.
  • the air inlet fan disposed outside the wind tunnel wall of the cross flow impeller of the present invention may be an axial fan or a centrifugal fan or a cross flow fan.
  • the present invention recommends an axial flow fan, and the air inlet and the cross flow impeller of the present invention are provided.
  • the air inlet opening on the wind tunnel wall is integrated, that is, the air outlet of the air inlet duct and the air inlet opening of the wind tunnel wall of the cross flow impeller are combined into one.
  • the projection line of the air inlet opening formed on the wind tunnel wall of the cross flow impeller of the present invention refers to a projection line in a projection plane perpendicular to the axial center of the indoor machine through the impeller, and the indoor air outlet is located on the lower left side.
  • the specific position of the axial flow fan of the present invention is such that the axial flow fan is arranged in a row along the axial direction of the cross flow impeller, and the number of the installation is not limited, and can be filled in the axial direction of the cross flow impeller to meet the air intake requirement.
  • the number of axial fans of the present invention is 3 to 20, and 3 to 20 axial fans are evenly arranged along the axial direction of the cross-flow impeller, and the axes of the rotating shafts of the axial fan blades of 3 to 20 are connected in a straight line.
  • 3 to 20 axial fans refer to any one of 3 to 20, and the present invention recommends the setting of any number between 4 and 12.
  • the minimum angle of the projection extension line of the axial line of the axial fan of the axial fan and the projection line of the air inlet of the cross-flow impeller is limited to 15 degrees or more to ensure the introduction of the fan.
  • the incoming air flows smoothly into the air inlet opening on the wind tunnel wall of the cross flow impeller. Otherwise, the minimum angle is too small, and the air introduced by the air intake fan will directly bleed the fan to induce the wind tunnel wall and then refract.
  • the optimal minimum angle recommended by the present invention is 60 or more. degree.
  • the vertical distance of the projection extension line of the projection line of the axial flow fan shaft of the axial fan to the air outlet of the cross flow impeller is less than 180 mm, and the vertical distance cannot be too small or too small, due to
  • the air inlet opening of the cross-flow impeller air outlet duct wall must be set narrowly, so that the area of the air inlet of the fan air duct is greatly reduced to the area of the air outlet, which increases the air inlet noise, and the vertical distance cannot be exceeded.
  • Large, too large the air introduced by the air intake fan will increase the wind pressure lost in the air passage, and will increase the volume of the indoor unit, that is, cumbersome and increase the cost.
  • the optimal vertical distance recommended by the present invention is greater than Equal to 40mm to less than or equal to 100mm, the axial fan blade rotation axis is the axis of the rotation axis at one-half of the length of the blade rotation axis in the blade.
  • the air inlet fan is directly arranged on the air inlet opening of the cross-flow impeller air outlet duct wall, that is to say, the air outlet of the air inlet fan is an air inlet opening formed on the wall of the cross-flow impeller air outlet duct, plus Inventing the specific arrangement of the air inlet on the wind tunnel wall of the cross-flow impeller, the indoor air can be introduced into the wind tunnel of the cross-flow impeller in the most convenient and smooth manner.
  • the introduced air pressure and air volume are not lost, almost The rated wind pressure of the air intake fan has the best efficiency, and the air intake duct is omitted.
  • the design and installation cost is reduced.
  • the air inlet is directly installed on the air inlet opening on the wind tunnel wall of the cross flow impeller.
  • the fan and the air intake fan enter the air on the back side of the indoor unit, and the angle between the air inlet direction and the indoor air outlet direction is greater than 110 degrees. There is almost no air intake fan to introduce the indoor unit air into the cross flow impeller air duct. If the air intake fan is installed near the left and right sides of the indoor unit and the air outlet of the indoor unit, not only the number of air intake fans is limited, but also the need to introduce a large indoor air is required.
  • the production and installation cost is increased, and the air inlet fan is arranged on the side, and the angle between the air inlet direction of the air intake fan and the air outlet direction of the indoor unit is 90 degrees, and The distance between the two tuylius is relatively close, which will result in a large return flow. That is to say, the indoor unit emits air, and a larger part is continuously introduced into the cross-flow impeller air duct through the air intake fan, and then the air is introduced, and then introduced, not only can not reach The indoor air circulation is accelerated, and the time required to reach the set temperature is reduced.
  • the purpose of saving time and power saving is to delay the indoor air circulation speed, and the time required to reach the set temperature is increased, which consumes time and costs.
  • the present invention has the following advantages and positive effects:
  • the invention has a mixed air which is formed in the air outlet of the air-conditioner indoor unit and has a small temperature difference with the indoor air, and is sent to the indoor, so that the air outlet of the indoor air outlet is changed from a cold wind to a cool air, and the air is softened. Comfortable, thus eliminating the problem of "air conditioning sickness”.
  • the mixed air of the indoor unit of the present invention compared with the original indoor air outlet, the air volume, the wind speed, the wind range significantly increased, so that the indoor air circulation accelerates, the time required to reach the set temperature Reduce, save time and power.
  • FIG. 2 is a schematic view showing the clockwise angle of the tangential line of the tangential line to the undercut point of the present invention and the tangential direction of the tangential line of the outlet duct wall with the upper tangent point as the tangent point.
  • Figure 1 of Figure 2 is the indoor unit casing
  • 2 is the indoor unit air inlet
  • 3 is the wall
  • 4 is the heat exchanger
  • 5 is the cross-flow impeller
  • 6 is the cross-flow impeller volute
  • 7 is the Flow impeller axis
  • 8 is the induced draft fan
  • 9 is the induced fan rotating shaft
  • 10 is the leading fan rotating shaft axis
  • 11 is the induced draft air duct
  • 12 is the induced draft fan rotating shaft axis line
  • the angle of the line, 13 is the lower cut point of the air inlet
  • 14 is the air inlet
  • 15 is the upper point of the air inlet
  • 16 is the cut line of the air duct wall with the above cutting point as the tangent point
  • 17 is the upper cut point to the lower cut
  • the line connecting the point and the upper tangent point are the clockwise angle of the positive direction of the tangential wall of the outlet duct wall
  • 18 is the cross-flow impeller air duct wall
  • 19 is
  • Fig. 1 is an indoor unit casing, and the cross-flow impeller air outlet duct wall 18 is an indoor unit outlet duct wall.
  • the indoor unit casing 1 is provided with a heat exchanger 4, a cross-flow impeller 5, and a cross-flow impeller volute 6.
  • the cross-flow impeller 5 rotates, and the indoor air is taken in through the indoor air inlet 2, and the indoor air is taken in.
  • the air is heat-exchanged by the heat exchanger 4 to form the heat exchange air, it passes through the cross-flow impeller 5, and flows through the upper cut point 15 of the air guiding port, forming a negative relationship between the upper cutting point 15 of the air guiding opening 14 and the lower cutting point 13 of the air guiding opening.
  • the outdoor air passes through the air inlet fan 8 disposed outside the wind tunnel wall of the cross flow impeller, and is sucked into the air inlet 14 to mix with the heat exchange air in the air duct of the cross flow impeller to form a soft mixed air, which is taken out by the indoor unit.
  • the tuyere 20 flows into the room. Under the action of a group of air-inducing fans 8, not only the amount of air introduced is increased, but also the amount of wind introduced has a certain amount of wind energy.
  • the indoor air in the air duct of the cross-flow impeller is sufficient, and the airflow in the cross-flow impeller is in the air duct.
  • the heat exchange air is mixed into a soft mixed wind and the wind energy is increased.
  • the line connecting the upper cutting point A to the lower cutting point B is the line connecting the upper cutting point to the lower cutting point, and has the same connection property as the upper cutting point 15 of the air guiding opening 14 and the lower cutting point 13 of the air guiding opening.
  • Figure 1 the direction of the arrows in Figure 2 is the direction of air flow.
  • the upper tangent point A is the tangent point of the tangential line of the outlet duct wall with the above tangent point as the tangent point.
  • the invention provides a setting scheme of the draft fan directly on the air inlet opening of the cross-flow impeller air outlet duct wall, and the implementation is to remove the air inlet duct 11 and directly install the air inlet fan 8 in the cross-flow impeller wind.
  • the air intake opening 14 is provided on the wall of the road, and the rest is the same as the above embodiment, and is not defective.

Abstract

一种混合出风空调室内机，包括室内机机壳（1），贯流叶轮出风风道，贯流叶轮出风风道壁（18），贯流叶轮出风风道壁（18）上开设有引风口（14），引风口（14）在垂直于室内机贯流叶轮轴心线、室内机出风口（20）位于左下侧的投影平面中的投影线，与出风风道壁（18）相交的点为上切点（15）的出风风道壁切线正方向段的顺时针夹角（17）大于等于12°到小于等于198°，贯流叶轮出风风道壁（18）外侧设置引风风扇（8），引风风扇（8）出风口连接引风风道（11），引风风道（11）出风口与贯流叶轮出风风道壁（18）上开设的引风口（14）贯通。该混合出风空调室内机具有出风风量出风风速大、射程远、出风为热交换风与室内空气形成凉而不冷的混合风的优点。

Description

一种混合出风空调室内机 技术领域
本发明属于空气调节技术领域，仅涉及一种空调室内机。
背景技术
现有空调室内机在工作时，室内空气在贯流叶轮的作用下被吸入室内机，与热交换器热交换后成为热交换空气，由室内机出风风道排出。现有空调室内机出风风道为封闭式，热交换空气在被排出前与出风风道外侧的室内空气是隔绝的，因此，出风风道排出的全部是热交换空气，特别是在制冷模式下，空调室内机进出风口温差达到16度左右，相对室内原有空气温度，形成较大的温差，当空气调节达到设定温度后，空调处于围绕设定温度间断运行来调控室温的工作状态，室内机的出风温度会更低，远低于人体体感舒适度的温度范围，人体经受这种室内机出风的直吹，就会感觉到很冷，感觉难受，经常受到这种温差过大的室内机出风的直吹，就会得通常所说的“空调病”，这个问题在老弱病残，儿童使用者身上，在人们睡眠状态使用时，尤其突出。因此，如何设计一种空调出风，使得出风较为柔和，更接近人体体感舒适度的温度范围，从而消除“空调病”的空调室内机，就成为人们长期以来一直渴望解决但始终未能获得成功的技术难题了。
发明内容
本发明的目的就是提供一种混合出风空调室内机，达到解决现有空调室内机出风不够柔和，出风与室内空气温差大，人体体感难受，易得“空调病”问题的目的，与此同时，本发明还具有室内空气调节循环加速，达到设定温度所需的时间减少，省时省电的作用。
本发明的发明目的是通过以下方式来实现的：一种混合出风空调室内机，包括室内机机壳，贯流叶轮出风风道，贯流叶轮出风风道壁，其特征是：贯流叶轮出风风道壁上开设有引风口，引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°，贯流叶轮出风风道壁外侧设置引风风扇，引风风扇出风口连接引风风道，引风风道出风口与贯流叶轮出风风道壁上开设的引风口贯通。
本发明的发明目的还可通过以下方式来实现的：一种混合出风空调室内机，包括室内机机壳，贯流叶轮出风风道，贯流叶轮出风风道壁，其特征是：贯流叶轮出风风道壁上开设有引风口，引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°，在贯流叶轮出风风道壁上开设的引风口上设置引风风扇。
本发明的引风风扇为轴流风扇。
本发明的轴流引风风扇数为3到20只，3到20只轴流引风风扇沿贯流叶轮轴心线方向布置，3到20只轴流引风风扇风叶转动轴轴心的连线，与室内机贯流叶轮转动轴轴心线呈平行结构。
本发明的轴流引风风扇风叶转动轴轴心线与贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的最小夹角大于等于15度。
本发明的轴流引风风扇风叶转动轴轴心线与贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的最小夹角大于等于60度。
本发明的轴流引风风扇风叶转动轴轴心到贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的垂直距离小于等于180mm。
本发明的轴流引风风扇风叶转动轴轴心到贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的垂直距离大于等于40mm到小于等于100mm。
本发明的空调室内机是专指采用贯流叶轮进出风的室内机，所以本发明中的贯流叶轮出风风道即为室内机出风风道，通常贯流叶轮出风风道由出风风道部分的蜗舌和蜗壳以及两侧板组成截面为长方形的风道，以蜗舌和蜗壳为前后布置时，两侧板分为左右两块，左右两侧板将蜗舌和蜗壳连接围合成截面为长方形的风道后，贯流叶轮的蜗舌和蜗壳就为贯流叶轮出风风道壁，其余两边则为贯流叶轮出风风道侧板，采用贯流叶轮进出风的空调室内机为长方体，通常为室内机机壳上方进风，下前方出风，本发明引风口设置在贯流叶轮出风风道壁的蜗壳上，即通常所称的贯流叶轮的出风风道壁后蜗壳上，因此，本发明的贯流叶轮出风风道壁上开设有引风口即为贯流叶轮出风风道壁的蜗壳上开设有引风口。通常贯流叶轮为长圆筒形，贯流叶轮的出风风道截面为长方形，室内机的出风口的截面也为长方形，贯流叶轮的轴心线与上述长方形的长中心线平行，所以贯流叶轮出风风道壁上开设的引风口也相对应为长中心线与之平行的长方形。组成长方形的引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，以贯流叶轮出风风道出风方向19为方向，沿着出风风道18型线，首先与出风风道18型线相交的点为与出风风道壁相交的上切点A，对应的另一切点则为与出风风道壁相交的下切点B，见附图2。此外，贯流叶轮出风风道壁上开设的引风口也可将长方形的引风口视作一块长方形板材上开设圆形，椭圆形，正方形，长方形等其他形状的引风口，只要这些引风口满足在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线的延长线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°即可。
本发明垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面即为空调室内机右视图，也就是本发明附图1，反之，则为空调室内机左视图。室内机出风口位于左下侧即贯流叶轮出风方向为左下侧。
室内机贯流叶轮折射出风的特性决定了出风风道的型线为向着贯流叶轮轴心线方向弯曲的弧形型线，如仅是在原来的出风风道壁上简单开一个引风口，引风口的上切点与下切点仍位于弧形弯曲的出风风道壁型线上，贯流叶轮流出的空气将会出现直接对着引风口在引风口形成正压而流出的情况，从而形成一道风阻，引风口通过引风风扇引进室内空气就会受到阻碍，严重影响引进风量甚至无法引进室内空气，所以必须将引风口的上切点与下切点连线的投影线在出风风道壁上的相对位置结构关系满足“引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°”这一技术特征才能形成完全负压的引风口。请参照附图2，上切点A到下切点B的连线即为上切点与下切点所组成的投影线，出风风道壁相交的点为上切点的出风风道壁切线是指以上切点A为切点，以上切点所在的出风风道壁18型线在上切点A为切点的切线，即附图中16，附图中19为贯流叶轮出风方向，切线16箭头方向即表示为切线与贯流叶轮出风方向19同方向，过切线上切点A与贯流叶轮出风方向19同方向的线段即为切线正方向段，反之，则为切线负方向段。顺时针夹角是指上切点A到下切点B的连线以上切点A为原点，顺时针方向转到与该切线 正方向段的夹角，即附图2中17，17中的箭头方向标明为顺时针。如果在空调室内机左视图中，顺时针夹角则为逆时针夹角，两者性质相同。当出现出风风道壁的型线为直线的特例时，出风风道壁型线所形成的直线即为上切点A所在的出风风道壁切线。当引风口的上切点到引风口的下切点在出风风道壁上满足这样的位置结构关系时，引风口才能形成负压区域，室内空气就会在引风风扇的作用下通过贯流叶轮出风风道壁上开设的引风口毫无阻碍地引进来与贯流叶轮出风风道内的热交换空气混合为柔和的混合空气排出室内机出风口实现本发明的发明目的，否则，由于出风风道是向着贯流叶轮轴心线方向弧形弯曲的，贯流叶轮折射流出的热交换空气就不能保证在引风口形成完全的负压区域，有可能形成引风与出风同时出现的情况，甚至形成热交换空气通过引风口流出而不能通过引风风扇引入室内空气的情况，发明目的不但无法实现，还会将贯流叶轮出风风道内的热交换空气分流流出，导致室内机热交换出风风量流失。
在上述室内空气在引风风扇的作用下通过贯流叶轮出风风道壁上开设的引风口毫无阻碍地引进来与贯流叶轮出风风道内的热交换空气混合为柔和的混合出风排出室内机出风口时，在制冷模式下，由于贯流叶轮流出的热交换空气所携带的热交换能量是一定的，形成混合出风后，总出风量增加了，为贯流叶轮流出的热交换风量与引风风扇作用下引进的风量之和，这就使得形成的混合出风的温度得到提高，出风温度得到提高，使得室内机出风口的出风吹向人体由人体感觉冷风变为凉风，出风变得柔和舒适，从而消除了“空调病”的问题，而且引风风扇作用下引进的风量自身具有一定的风能，当引风风扇转速使得引进空气的流速大于贯流叶轮出风风道内热交换空气的流速时，室内机获得增大的混合出风的出风风速和出风射程将大于原室内机单纯的热交换出风，由于室内机出风口通常收缩为狭长的长方形狭缝，室内机出风量增大后通过长方形狭缝就会形成射流，射流就会同室内机出风口附近的空气掺混成一股流体，使得出风温度得到进一步提高，也就进一步提高了人体体感舒适度，大大提高了消除“空调病”的效果。出风量、风速、出风射程获得了增加，室内空气循环加速，达到设定温度所需的时间减少，从而达到本发明省电节能的发明目的。
本发明贯流叶轮出风风道壁外侧设置的引风风扇可为轴流风扇或离心风扇或贯流风扇，本发明推荐采用轴流风扇，本发明引风风道出风口与贯流叶轮出风风道壁上开设的引风口贯通，即引风风道出风口与贯流叶轮出风风道壁上开设的引风口合二为一。本发明贯流叶轮出风风道壁上开设的引风口的投影线是指在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线。本发明的轴流风扇的特定位置的设置使得轴流风扇足以沿贯流叶轮轴心线方向成排设置，设置数量不限，可以在贯流叶轮轴心线方向布满，以满足引风量需要。本发明的轴流风扇数为3到20只，3到20只轴流风扇沿贯流叶轮轴心线方向均匀布置，3到20只轴流风扇风叶转动轴的轴心连成一条直线，与室内机贯流叶轮轴心线呈平行结构，这样引进来的空气与贯流叶轮出风风道内的热交换空气就能均匀混合成混合空气，否则会出现出风温度不匀的情况。3到20只轴流风扇是指包括3到20中的任意一个数，本发明推荐采用4到12只之间的任一数的设置。
本发明的轴流风扇风叶转动轴轴心线与贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的最小夹角限定为大于等于15度，是为了确保风扇引进来的空气较为流畅地进入贯流叶轮出风风道壁上开设的引风口，否则最小夹角过小，引风风扇引进来的空气就会直吹风扇引风风道壁后经多次折射才能进 入贯流叶轮出风风道壁上开设的引风口，使得引进风的风压大大下降，在风道壁多次折射时也会增加噪音，本发明推荐的最佳最小夹角为大于等于60度。
本发明的轴流风扇风叶转动轴轴心到贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的垂直距离小于180mm，该垂直距离不能过小，过小，由于贯流叶轮出风风道壁上开设的引风口必须设置得较窄，使得风扇引风风道进风口的面积到出风口的面积大大收缩，增大了进风噪音，该垂直距离也不能过大，过大，引风风扇引进来的空气在风道中沿程损失的风压会加大，同时会增大室内机的体积，即笨重又增加成本，本发明推荐的最佳垂直距离为大于等于40mm到小于等于100mm，轴流风扇风叶转动轴轴心是指风叶中的风叶转动轴长度的二分之一处的转动轴轴心。
本发明在贯流叶轮出风风道壁上开设的引风口上直接设置引风风扇，也就是说引风风扇的出风口就是贯流叶轮出风风道壁上开设的引风口，加上本发明贯流叶轮出风风道壁上开设引风口的特定设置，就可将室内空气最便捷最顺畅地引进到贯流叶轮出风风道内来，引进来的空气风压风量没有损失，几乎就是引风风扇的额定风压风量，引风效果最好效率最高，也省去了引风风道，设计安装成本下降，在贯流叶轮出风风道壁上开设的引风口上直接设置引风风扇，引风风扇在室内机后背面进风，进风方向与室内机下出风方向夹角大于110度，几乎不会出现引风风扇将室内机出风引进到贯流叶轮出风风道内的回流现象，而如果在室内机左右侧面和室内机出风口附近设置引风风扇，不但引风风扇设置数量受到限制，无法满足引进较大室内空气的需要，还需设置弯道形引风风道，才能将室内空气引进贯流叶轮出风风道，使得生产安装成本增加，侧面设置引风风扇，引风风扇进风方向与室内机出风方向夹角为90度，且两个风口距离较近，会产生较大回流，也就是说室内机出风，较大一部分不断通过引风风机引进到贯流叶轮出风风道，再出风，再引进，不但达不到室内空气循环加速，达到设定温度所需的时间减少，省时省电的发明目的，反而会延缓了室内空气循环速度，达到设定温度所需的时间增长，耗时费电。
由于采用了上述技术方案，本发明具有如下优点和积极效果：
1，本发明具有在空调室内机出风风道内形成与室内温差较小的混合出风并送至室内，使得室内机出风口的出风由人体感觉冷风变为凉风，出风变得柔和舒适，从而消除了“空调病”的问题。
2，本发明室内机的混合出风，与原有室内机出风相比，出风风量，出风风速，出风射程显著增大，使得室内空气循环加速，达到设定温度所需的时间减少，省时省电。
附图说明
附图1是本发明室内机结构右视图。
附图2是本发明上切点到下切点的连线与上切点为切点的出风风道壁切线正方向段的顺时针夹角的说明示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步说明：
附图1，附图2中的1为室内机机壳，2为室内机进风口，3为墙壁，4为热交换器，5为贯流叶轮，6为贯流叶轮蜗壳，7为贯流叶轮轴心，8为引风风扇，9为引风风扇转动轴，10为引风扇转动轴轴心，11为引风风道，12为引风风扇转动轴轴心线与引风口投影延长线的夹角，13为引风口下切点，14为引风口，15为引风口上切点，16为以上切点为切点的出风风道壁切线，17为上切点到下切 点的连线与上切点为切点的出风风道壁切线正方向段的顺时针夹角，18为贯流叶轮出风风道壁，19为贯流叶轮出风方向，20为室内机出风口，21为贯流叶轮蜗舌，A为上切点，B为下切点。
附图1中的1为室内机机壳，贯流叶轮出风风道壁18即为室内机出风风道壁。室内机机壳1内设置安装了热交换器4，贯流叶轮5，贯流叶轮蜗壳6，室内机工作时，贯流叶轮5转动，通过室内机进风口2吸入室内空气，吸入的室内空气经热交换器4热交换形成热交换空气后，穿过贯流叶轮5，流经引风口上切点15时，在引风口14的上切点15和引风口下切点13之间形成负压区域，室外空气通过贯流叶轮出风风道壁外侧设置的引风风扇8，被吸入引风口14与贯流叶轮出风风道内的热交换空气混合形成柔和的混合风，由室内机出风口20流向室内。在一组引风风扇8的作用下，不但引入的风量增大，引入风量也具有了一定的风能，引进贯流叶轮出风风道内的室内空气就风量充足，与贯流叶轮出风风道内的热交换空气混合成柔和的混合风的风能就获得增大。上切点A到下切点B的连线即为上切点到下切点的连线，与引风口14的上切点15和引风口下切点13之间的连线性质相同。附图1，附图2中箭头方向为空气流动方向。上切点A即为以上切点为切点的出风风道壁切线的切点。
本发明在贯流叶轮出风风道壁上开设的引风口上直接设置引风风扇的设置方案，实施时就是去掉引风风道11，直接将引风风扇8安装在贯流叶轮出风风道壁上开设的引风口14上，其余与上述实施例相同，不赘。

Claims (9)

  1. 一种混合出风空调室内机，包括室内机机壳，贯流叶轮出风风道，贯流叶轮出风风道壁，其特征是：贯流叶轮出风风道壁上开设有引风口，引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°，贯流叶轮出风风道壁外侧设置引风风扇，引风风扇出风口连接引风风道，引风风道出风口与贯流叶轮出风风道壁上开设的引风口贯通。
  2. 一种混合出风空调室内机，包括室内机机壳，贯流叶轮出风风道，贯流叶轮出风风道壁，其特征是：贯流叶轮出风风道壁上开设有引风口，引风口在垂直于室内机贯流叶轮轴心线，室内机出风口位于左下侧的投影平面中的投影线，与出风风道壁相交的点为上切点的出风风道壁切线正方向段的顺时针夹角大于等于12°到小于等于198°，在贯流叶轮出风风道壁上开设的引风口上设置引风风扇。
  3. 根据权利要求1所述的混合出风空调室内机，其特征是：引风风扇为轴流风扇。
  4. 根据权利要求3所述的混合出风空调室内机，其特征是：轴流引风风扇数为3到20只，3到20只轴流引风风扇沿贯流叶轮轴心线方向布置，3到20只轴流引风风扇风叶转动轴轴心的连线，与室内机贯流叶轮转动轴轴心线呈平行结构。
  5. 根据权利要求3所述的混合出风空调室内机，其特征是：轴流引风风扇风叶转动轴轴心线与贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的最小夹角大于等于15度。
  6. 根据权利要求3所述的混合出风空调室内机，其特征是：轴流引风风扇风叶转动轴轴心线与贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的最小夹角大于等于60度。
  7. 根据权利要求3所述的混合出风空调室内机，其特征是：轴流引风风扇风叶转动轴轴心到贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的垂直距离小于等于180mm。
  8. 根据权利要求3所述的混合出风空调室内机，其特征是：轴流引风风扇风叶转动轴轴心到贯流叶轮出风风道壁上开设的引风口的投影线的投影延长线的垂直距离大于等于40mm到小于等于100mm。
  9. 根据权利要求2所述的混合出风空调室内机，其特征是：引风风扇为轴流风扇。
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