WO2017049446A1 - 一种空调室内机 - Google Patents

一种空调室内机 Download PDF

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Publication number
WO2017049446A1
WO2017049446A1 PCT/CN2015/090200 CN2015090200W WO2017049446A1 WO 2017049446 A1 WO2017049446 A1 WO 2017049446A1 CN 2015090200 W CN2015090200 W CN 2015090200W WO 2017049446 A1 WO2017049446 A1 WO 2017049446A1
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Prior art keywords
air
cross
indoor unit
flow impeller
air outlet
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PCT/CN2015/090200
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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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Application filed by 孙海潮 filed Critical 孙海潮
Priority to PCT/CN2015/090200 priority Critical patent/WO2017049446A1/zh
Publication of WO2017049446A1 publication Critical patent/WO2017049446A1/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
    • 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

Definitions

  • the invention belongs to the technical field of air conditioning and relates only to an indoor unit of an air conditioner.
  • 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 blown out by the indoor unit air outlet duct.
  • the existing air-conditioning indoor air outlet ducts are all closed air ducts, and the heat exchange air is isolated from the indoor air outside the air outlet ducts before being blown out. Therefore, all the blown air ducts are blown out by heat exchange. wind.
  • the temperature difference between the inlet and outlet of the air conditioner indoor unit reaches about 14 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 turned on and off around the set temperature. Adjusting the working condition of the room temperature, the outlet air temperature of the indoor unit is lower, and the human body is subjected to such direct blow of the indoor unit, and it will feel very cold, and is often subjected to the direct blow of the indoor unit with excessive temperature difference. It will be called the "air conditioning disease", which is especially problematic in the elderly, the sick and the disabled, and the children's users. In order to solve this problem, it is necessary to provide a mixed air supply device to improve the temperature difference between the indoor unit air and the indoor air.
  • the outflow of the cross-flow impeller in the indoor unit is characterized by the fact that the wind is refracted on the wall of the outlet duct, which determines that the outlet duct of the cross-flow impeller is designed to be as narrow as possible and is oriented toward the cross flow.
  • the impeller axis is curved in an arc. From the indoor unit to save cost and aesthetics, it also needs to be miniaturized. Therefore, the air duct in the indoor unit cannot accommodate the normal air supply device. Otherwise, the air supply device is forcibly set, and the air outlet of the air outlet will be Blockage, the air supply device will also change the direction of the wind refraction of the cross-flow impeller, which seriously affects the wind pressure and the air output.
  • the air conditioner of the installation portion here refers to the wall mounted.
  • air guiding devices such as upper and lower air guiding, left and right air guiding, and diversion air guiding are provided.
  • Chinese Patent No. 2014207299611 entitled “A Split Wall-mounted Air Conditioner” (abbreviated as D patent) proposed on the rear volute of the air duct of the cross-flow impeller, that is, the air supply duct wall is set to send
  • the wind device introduces a technical solution in which air that has not been exchanged in the air is introduced into the room and forms a mixed air with the heat exchange air in the air supply duct.
  • the air supply duct of the air-flow indoor unit cross-flow impeller is the indoor unit air outlet duct.
  • the main point of the technical solution is to open the air duct wall and install a wind guiding component at the opening, and form an additional air inlet at a corresponding position of the indoor indoor casing, and the air guiding component is in the natural section of the patent specification 0008, 0009. Illustrated: the air guiding component is a plurality of lead-style grilles, and the "leading style grid includes a first portion on the rear volute type line and a second portion bent away from the air supply duct", It is obvious that the drafting assembly of the D patent is also disposed outside the wall of the outlet duct.
  • the object of the invention of D patent has two points: 1.
  • the mixed air with a small temperature difference between the air supply duct and the indoor air is sent to the room, and the mixed air with a small temperature difference is blown onto the human body, feeling cool without Cold, softer and more comfortable, improving the user's comfort experience; 2, increasing the air supply volume of the indoor unit air outlet, helping to speed up the indoor air flow speed and uniformity, reducing the indoor air to reach the set temperature Time and energy consumption.
  • the technical solution of the D patent has three shortcomings: 1.
  • the space formed by the outer side of the air duct of the air conditioner indoor unit and the casing of the indoor unit is the only air conditioner connecting pipe and air conditioning drain pipe which can be used to set the thick heat insulating pipe.
  • the additional air inlet is far away from the air outlet to avoid the problem that the air outlet of the indoor air outlet is recirculated through the additional air inlet.
  • the thickness of the machine that is, the length perpendicular to the wall, has been generally 300mm thick from the early years, and the thin design has been designed to the current 135mm-200mm.
  • the additional air inlet is provided on the indoor casing to design it far away from the air outlet. It is impossible to exceed the thickness of the indoor unit.
  • This recirculation zone of the air conditioner is located at the lower edge of the indoor unit, usually away from the active area of the person in the room.
  • the backflow causes the air volume of the indoor unit to blow to the active area that usually needs air conditioning to be reduced, and the amount of air output is reduced to the target area, so that the D patent Not only can it not be reduced, but it increases the time and energy consumption required for the indoor air to reach the set temperature, and it is difficult to achieve the technical effect of the second invention of the D patent. 3.
  • the object of the present invention is to provide an air conditioner indoor unit, which solves the problem that the existing air conditioner indoor unit is not soft enough, and the air supply volume is small, that is, the D patent invention is completely achieved, and the invention of the D patent is solved.
  • the poor wind induction effect of the wind component and the additional air inlet bring more serious backflow problems.
  • the invention can be implemented without increasing the production cost on the basis of the existing air conditioner indoor unit, and the market competitiveness of the product is improved.
  • an air conditioner indoor unit comprising a cross-flow impeller air outlet duct and a cross-flow impeller air duct wall characterized by: a cross-flow impeller on the air duct wall
  • the air inlet is opened, and the upper end and the lower end of the air outlet are staggered to form an air guiding opening.
  • the upper end and the lower end of the air guiding opening are perpendicular to the axial center of the indoor machine through the impeller, and the indoor air outlet is located in the lower left side of the projection plane, and the upper end
  • the clockwise angle between the line connecting the lower end and the positive direction of the tangential wall of the outlet duct wall at the upper end is greater than or equal to 10° to 200° or less.
  • an air conditioner indoor unit includes a cross-flow impeller air duct and a cross-flow impeller air duct wall, and is characterized in that: a cross-flow impeller air duct There is a tuyere on the wall, and the upper end and the lower end of the tuyere are staggered to form an air guiding opening, and the upper end and the lower end of the air guiding opening are perpendicular to the axial center of the indoor flow impeller, and the indoor air outlet is located in the lower left projection plane.
  • the line connecting the upper end and the lower end, the projection point at the lower end is the origin of the plane rectangular coordinate system, and the fan shape formed by the counterclockwise 50° angle in the positive direction of the X-axis and the counterclockwise rotation from 0° to 200°. Within the interval.
  • an air conditioner indoor unit includes a cross-flow impeller air duct and a cross-flow impeller air duct wall, and is characterized in that: a cross-flow impeller air duct There is a tuyere on the wall, and the upper end and the lower end of the tuyere are staggered to form an air guiding opening, and the upper end and the lower end of the air guiding opening are perpendicular to the axial center of the indoor flow impeller, and the indoor air outlet is located in the lower left projection plane.
  • the line connecting the upper end and the lower end, the projection point at the lower end is the origin of the plane rectangular coordinate system, which is formed by the anti-clockwise 50° angle in the positive direction of the X-axis and 40° to 160° counterclockwise. Within the sector.
  • an air conditioner indoor unit includes a cross-flow impeller air duct and a cross-flow impeller air duct wall, and is characterized in that: a cross-flow impeller air duct There is a tuyere on the wall, and the upper end and the lower end of the tuyere are staggered to form an air guiding opening, and the upper end and the lower end of the air guiding opening are perpendicular to the axial center of the indoor flow impeller, and the indoor air outlet is located in the lower left projection plane.
  • the line connecting the upper end and the lower end is the origin of the plane rectangular coordinate system.
  • the positive direction of the X-axis is counterclockwise 250°, and the counterclockwise rotation is greater than 0° to less than or equal to 65°. Formed within the fan-shaped interval.
  • an air outlet is formed in the indoor unit casing above the indoor unit mounting plate.
  • the air inlet is communicated with the indoor air through a hole in the mounting plate.
  • a damper that can be opened and closed is provided on the air inlet.
  • the vertical distance between the upper and lower ends of the air inlet is less than 6 mm.
  • the air conditioner 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 air outlet duct, and the cross-flow impeller air duct has four walls. That is, the cross-flow impeller air outlet duct wall, generally the cross-flow impeller air outlet duct is composed of the volute tongue and the volute of the air outlet duct portion, and the air inlet of the present invention is disposed on the volute of the cross-flow impeller air outlet duct wall Above, that is, the so-called cross-flow impeller is generally referred to as an air outlet duct wall volute.
  • the cross-flow impeller air duct wall of the present invention is provided with an air guiding port which is a cross-flow impeller air duct wall.
  • An air inlet is provided on the volute.
  • the cross-flow impeller has a long cylindrical shape
  • the cross-flow impeller has a rectangular cross section of the air outlet duct
  • the air outlet of the indoor unit has a rectangular cross section
  • the axial line of the cross-flow impeller is parallel to the long center line of the rectangular shape, so the cross flow
  • the air inlet opening on the impeller air duct wall is also corresponding to the rectangle with the long center line parallel thereto. Referring to FIG.
  • the two long end ends of the rectangular air inlet are oriented in the direction of the wind direction of the cross-flow impeller air duct, and along the line 15 of the air outlet duct, firstly located on the 15 line of the air duct.
  • the long side of the rectangular air inlet is the upper end A, and the other long side is the lower end B.
  • 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 characteristics of the indoor unit's cross-flow impeller refracting the wind determine that the wind duct is different from the general fan duct.
  • the general fan duct air duct technology is not suitable for the design of the cross-flow impeller duct.
  • the profile of the air outlet duct of the impeller is curved curved toward the axial direction of the cross-flow impeller. Therefore, if only a rectangular air outlet is simply opened on the original air outlet duct wall, the air flowing out of the cross-flow impeller will It will directly form a positive pressure on the tuyere and flow out at the tuyere. It is impossible to achieve the purpose of introducing indoor air.
  • the upper end and the lower end of the tuyere are staggered to form an air inlet.
  • the staggered here refers to the upper end.
  • the lower end is no longer at the same time on the original wind tunnel wall trajectory.
  • the relative positional relationship between the upper end and the lower end of the rectangular tuyere on the outlet duct wall must also meet the specific "in the vertical"
  • the technical feature of 10° to less than or equal to 200° can form an air inlet.
  • connection point from the upper end projection point A to the lower end projection point B is the upper side.
  • the end-to-lower end connection, the upper end is the tangent point of the outlet air duct wall tangent line means that the upper end projection point A is the tangent point, and the upper end end is located on the outlet duct wall 15 line at the upper end projection point A
  • the tangent to the tangent point, that is, 130 in FIG. 4, 161 in FIG. 4 is the direction of the cross-flow impeller, and the direction of the tangential line 130 is the same direction as the tangential direction of the cross-flow impeller, and the tangent is cut.
  • the line segment in the same direction as the direction 161 of the cross-flow impeller is the positive direction of the tangent line, and vice versa.
  • the clockwise angle refers to the line connecting the projection point A of the upper end to the projection point B of the lower end with the cut point A as the origin, and clockwise to the angle with the positive direction of the tangent, that is, 131, 131 in FIG.
  • the direction of the arrow in the arrow is marked 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 wall line of the outlet duct is the cut line of the outlet duct wall with the upper end being the tangent point, when the upper end of the air inlet is to the lead
  • the air inlet can form a negative pressure region, and the indoor air outside the air inlet is introduced to exchange heat with the cross-flow impeller air duct.
  • the purpose of the present invention is achieved by forming a gentle cool heat exchange air flowing out of the indoor unit air outlet.
  • the cross-flow impeller refracts the heat exchange air flowing out to ensure that a complete negative pressure region is formed at the air inlet, and it is possible to form an induced and outgoing air.
  • the object of the invention is not only impossible to realize, but also the heat exchange air in the air duct of the cross flow impeller is shunted and discharged, resulting in the indoor unit.
  • the air volume is insufficient.
  • the upper end and the lower end of the air inlet are perpendicular to the axial center of the indoor flow impeller, and the indoor air outlet is located in the lower left projection plane.
  • the upper end and the lower end are connected, and the projection point at the lower end is a plane right angle.
  • the origin of the coordinate system in the positive direction of the X-axis, counterclockwise 50° angle as the starting line and then counterclockwise to 0° to 200°.
  • the essence of this technical feature is: perpendicular to the indoor
  • the machine cross-flow impeller axis line, the indoor unit air outlet is located in the lower left projection plane, the upper end and the lower end line, the projection point at the following side is the origin, the horizontal number axis is the X-axis, and the vertical number axis is the y-axis
  • the straight line which is rotated counterclockwise by 50° in the positive direction of the X-axis is taken as the starting line and then rotated counterclockwise by 0° to 200°, that is to say,
  • the upper end and the lower end forming the air inlet are located in this sector section and satisfy such a relative positional relationship.
  • the "0° to 200°” therein includes 0° and includes 200°.
  • the starting line that turns counterclockwise by 50° in the positive direction of the X-axis means that it is a straight line that is rotated counterclockwise from the positive axis of the X-axis to an angle of 50° with the number of positive axes of the original X-axis.
  • the relative positional relationship between the upper end and the lower end of the air inlet must satisfy the "axial line perpendicular to the indoor flow through the impeller, and the indoor air outlet is located at the right.”
  • the line connecting the upper end and the lower end is the origin of the projection point at the lower end
  • the horizontal axis is the X-axis
  • the vertical number is the y-axis.
  • the plane is located in the Cartesian coordinate system.
  • the negative direction of the shaft clockwise 50 ° the initial line of the angle is then clockwise 0 ° to 200 ° formed in the fan-shaped interval.”
  • the starting line of the angle of 50° clockwise in the negative direction of the X-axis means that it is a straight line that is clockwise from the negative axis of the X-axis to an angle of 50° with the number of the original X-axis negative direction.
  • the air inlet opening of this technical feature is provided, and the upper and lower ends of the air inlet are in a sector-shaped section, thus There may be a plurality of relative positional structural schemes, and some of the structural schemes provide an air guiding effect of the air guiding opening, which is not ideal, and only the upper side and the lower side are in the plane rectangular coordinate system established by the plane in the right side view of the air conditioner indoor unit of the present invention.
  • the present invention Negative pressure zone formed by the tuyere
  • the negative pressure effect of the domain is optimal, and the object of the invention can be best achieved.
  • the "40° to 160°" therein includes 40° and includes 160°.
  • the wind tunnel wall can also be designed to be curved curved back against the axial direction of the cross-flow impeller, but the wind pressure is low and the air output is small.
  • the line connecting the upper end and the lower end of the air inlet is located at the origin of the plane orthogonal coordinate system, and is X-axis.
  • the upper end and the lower end of the air inlet When the air inlet is opened on the volute of the wind tunnel wall of the cross-flow impeller of the present invention, the upper end and the lower end of the air inlet have a plurality of relative position structures, wherein the upper end is curved toward the air duct. The lower end is still located on the wall of the original cross-flow impeller air duct, and the staggered arrangement is optimal.
  • the air inlets thus formed are all located in the original cross-flow impeller air duct wall, and do not occupy the original air duct.
  • the space outside the wall is basically located on the wall of the original wind tunnel, and has little effect on the wind of the wind tunnel.
  • the original cross-flow impeller air duct wall of the present invention is an outlet duct wall of the cross-flow impeller when the air inlet is not opened. Because the air inlet does not have the space and the occluded problem outside the wall of the wind tunnel, the air is fluent and the air volume is sufficient, which eliminates the air inlet of the D patented air intake component being blocked by the wind and the wind guiding effect is poor. Disadvantages. When the heat exchange wind flowing out of the cross-flow impeller flows to the indoor air outlet through the inwardly curved air inlet end, the upper end of the air inlet opening and the lower end of the original cross flow impeller air duct wall are formed.
  • the air inlet forms a negative pressure zone, and the indoor air outside the outlet air duct wall is continuously introduced to mix with the heat exchange air in the cross-flow impeller air duct to form a soft cool heat exchange air flowing out of the indoor unit. tuyere.
  • the amount of air at this time should be the indoor air introduced by the heat exchange air of the cross-flow impeller and the air inlet.
  • the total air output is increased, but the heat exchange energy is constant, and the heat exchange air is still flowing out of the cross-flow impeller.
  • the energy carried, the heat exchange energy of the indoor air outlet is unchanged. If it is in the cooling mode, that is, the cooling capacity is constant, the air volume is increased, and the air temperature is appropriately increased, so that the air outlet of the indoor unit is ventilated.
  • the human body feels that the cold wind turns into a cool breeze, and the wind becomes soft and comfortable, thus eliminating the problem of "air conditioning disease". Since the amount of refrigeration carried by the air having an appropriately increased temperature is not reduced, the amount of airflow is increased, the indoor air circulation is accelerated, the time required to reach the set temperature is reduced, and power saving is achieved, thereby achieving the object of the present invention.
  • the rear side of the air conditioner indoor unit is equipped with a mounting plate.
  • the mounting plate is provided with a set of rectangular openings, usually 2 to 3, and the rectangular opening is communicated with the indoor air above the indoor unit, and on the cross-flow impeller volute
  • the outer side of the air duct wall is also connected.
  • the rectangular hole is hung on the hook of the metal wall panel, and the wall panel is pre-mounted on the wall, and the indoor unit is suspended on the wall. After the wall panel hook is hung on the rectangular opening of the mounting plate, the rectangular opening still has enough holes to communicate with the indoor.
  • the present invention is provided with an air guiding opening on the air outlet wall of the cross flow impeller volute, so the air inlet It is also connected to the interior.
  • the air-conditioning indoor unit casing in the vertical direction between the mounting plate and the wall panel There will also be gaps and openings in the air.
  • the existing air conditioner also has a design of a through-hole impeller on the cross-flow impeller of the indoor unit.
  • the gaps and the openings on the mounting plate are all existing air-conditioning indoor units. It is in communication with the outer side of the air outlet duct wall on the cross-flow impeller volute. Therefore, no special additional air inlet is required, and the existing technical characteristics of these air-conditioning indoor units are utilized, and the negative pressure formed by the air inlet is formed.
  • the air conditioning indoor unit of the present invention includes the prior art technical features of these air conditioning indoor units.
  • the hole for hanging with the wall panel is a well-known technique. Originally, it only has the function of hanging the indoor unit.
  • the air inlet is introduced into the indoor air duct.
  • the invention can also be placed above the indoor unit mounting plate The air inlet of the present invention is enlarged by adding a tuyere on the casing of the indoor unit.
  • the above two types of air-inducing means that connect the air inlet to the indoor air are used to introduce the gaps, holes and air outlets of the indoor air, which are located at the top of the indoor unit against the wall, and the gap and the opening and the air outlet and the indoor air outlet have an indoor
  • the air inlets of the machine are separated, and the air inlet direction and the indoor air outlet direction angle are greater than 90°, so it is impossible to generate the possibility that the air outlet of the indoor unit is returned to the gaps and the openings and the tuyere, thereby eliminating the D patent opening.
  • the additional air inlet brings back the flow, not only can it not reduce, but it will increase the time and energy consumption of the indoor air reaching the set temperature.
  • the volute of the cross-flow impeller is a one-time injection molded part, and an air guiding opening is formed on the air outlet duct wall of the cross-flow impeller volute, only one upper end is bent into the air outlet duct, and the lower end is still located in the original cross flow.
  • the rectangular air inlet on the wall of the impeller air outlet duct can be generated during the injection molding of the volute of the cross flow impeller, so the production cost is not increased.
  • a plurality of connecting support bars may be arranged between the upper and lower ends of the rectangular air inlet to form a harmonical shape to improve the strength of the rectangular air inlet and reduce the vibration which may occur when the air flows at a high speed.
  • the heat exchange air flowing out of the cross-flow impeller is circulated out of the air duct on the wall of the air outlet duct.
  • the normal line of the outlet air duct wall where the lower end is located to the upper side air outlet duct wall or the upper side outlet wind duct wall arc The straight line distance at which the extension lines intersect.
  • the present invention can be used in the cross flow impeller
  • An air inlet is provided at any position on the full wall section of the air duct wall of the shell, and 3 to 8 or more air inlets may be provided on the entire wall section of the air duct wall to increase the air volume and the air intake. Uniformity in the air duct, there is no need in the D patent to define the opening 71 in a specific suitable position of the rear volute, otherwise it is difficult to avoid the problem of uneven air and insufficient air volume.
  • the indoor air duct of the cross-flow impeller for heat exchange is narrow, and it is difficult to accommodate the usual inward air blowing device including the air-inducing component of the D patent, even if the normal air blowing device is not provided.
  • the outlet air duct will also be squeezed into the blockage, changing the direction of the cross-flow impeller to refract the wind, which seriously affects the wind. Therefore, the technicians in the field of air-conditioning technology generally have a common understanding of the air-conditioning indoor air outlet duct. As described in the background of the present specification, it is not possible to provide an additional air blowing device.
  • the invention overcomes this technical prejudice, and a special structure air guiding port is arranged in the air outlet duct, which can not only provide additional air supply for the air outlet duct, but also increase the air volume without occupying the air duct, and does not wind out the wind.
  • the wind of the road has an adverse effect.
  • a rectangular tuyere is opened inward on the wall of the cross-flow impeller air outlet duct, and the relative positional relationship between the upper and lower long side ends of the rectangular tuyere is specially designed, so that the rectangular tuyere itself has the function of introducing air.
  • the air inlet is no longer necessary to set up the air intake component. Without the air-inducing component, there is no problem that the air duct is crowded and blocked, which seriously affects the wind, so that the invention aims to solve the problem that the wind is not soft enough, the air volume is small, and the production cost is also achieved.
  • the object of the invention is carried out without any increase.
  • the technical solution proposed in the claim of the D patent is to form an opening in the rear volute of the air supply duct of the cross-flow fan, and "form a wind-guiding assembly having an air-leading opening on the opening",
  • the air component provides an air vent, which not only has a complicated structure, but also requires installation space and an increase in production cost.
  • the invention provides a technical solution specially proposed for an air-conditioning indoor unit that adopts a cross-flow impeller to enter and exit the wind, and is a technical solution implemented on an indoor air flow duct air outlet duct wall.
  • the present invention has the following advantages and positive effects:
  • the invention has the advantages of forming a mixed air with a small temperature difference between the indoor air duct and the indoor air supply and increasing the air volume of the indoor unit in the air outlet of the air conditioner indoor unit, and fully achieves the object of the invention of the D patent and is superior to the patent invention of D. Purpose technical effect.
  • the invention solves the problem that the D-invention has a poor air-inducing effect of the air-inducing component and a serious backflow problem caused by the additional air inlet.
  • the present invention can implement the present invention on the basis of the existing air-conditioning indoor unit without increasing the cost, and greatly improve the market competitiveness of the air conditioner.
  • the present invention overcomes the technical bias that the air supply device cannot be installed in the airflow duct of the cross-flow impeller of the air conditioner indoor unit.
  • FIG. 2 is a perspective view showing the structure of the air outlet of the air outlet duct of the present invention.
  • Figure 3 is a plan orthogonal coordinate system in which the projection point of the lower end of the present invention is the origin.
  • FIG. 4 is a schematic explanatory view showing a clockwise angle of a line connecting the upper end to the lower end of the present invention and a positive direction of the tangential line of the air outlet duct wall at which the upper end is a tangent point.
  • Figure 1 of Figure 1 is the indoor unit casing
  • 2 is the indoor unit air inlet
  • 3 is the wall
  • 4 is the wall panel
  • 5 is the heat exchanger
  • 6 is the flow Impeller volute hole
  • 7 is the indoor machine mounting plate
  • 8 is the cross flow impeller
  • 9 is the cross flow impeller volute
  • 10 is the cross flow impeller axis
  • 11 is the original wind tunnel wall track
  • 12 is the upper end of the air inlet
  • 13 is the air inlet
  • 130 is the tangential line of the outlet duct wall with the upper end as the tangent point
  • 131 is the clockwise clip of the positive direction of the tangential line of the outlet duct wall with the upper end to the lower end and the upper end being the tangent point.
  • Angle 14 is the lower end of the air inlet
  • 15 is the cross-flow impeller air duct wall
  • 16 is the cross-flow impeller air duct
  • 161 is the cross-flow impeller air direction
  • 17 is the indoor unit air outlet
  • 18 is the connection support Strip
  • A is the upper end projection point
  • B is the lower edge projection point.
  • FIG. 1 in FIG. 1 is an indoor unit casing
  • the cross-flow impeller air outlet duct 16 is an indoor unit air outlet duct
  • the cross-flow impeller air outlet duct wall 15 is an indoor unit outlet duct wall.
  • a heat exchanger 5, a cross flow impeller 8, a cross flow impeller volute 9 and a cross flow impeller air outlet 16 are disposed in the indoor unit casing 1.
  • the cross flow impeller 8 rotates through the indoor unit.
  • the air inlet 2 draws in indoor air, and the sucked indoor air is heat-exchanged by the heat exchanger 5 to form heat exchange air, and then passes through the cross flow impeller 8 in the cross flow impeller air outlet duct 16 and flows through the upper end 12 of the air inlet.
  • a negative pressure region is formed between the upper end 12 of the air guiding opening 13 and the lower end 14 of the air guiding opening, and the outdoor air passes through the indoor air inlet 2 and the cross flow impeller volute opening 6, and is sucked into the air guiding port 13 and the cross flow impeller.
  • the heat exchange air in the tunnel 16 is mixed to form a gentle heat exchange air, which flows into the room from the indoor unit air outlet 17.
  • the line connecting the projection point A from the upper end to the projection point B at the lower end is the connection from the upper end to the lower end, and has the same connection property as the connection between the upper end 12 of the air inlet 13 and the lower end 14 of the air inlet.
  • the air inlet 13 is sucked into the room through a set of rectangular openings on the mounting plate for hanging with the wall panel and the existing gaps and openings in the air conditioner indoor casing to communicate with the indoor air. air.
  • the method of inhaling indoor air by the two types of air inlets may adopt one of the methods or the simultaneous use depending on the amount of air intake.
  • the cross-flow impeller volute of Figure 1 is overlapped with the indoor unit mounting plate for the reason of the drawing. In fact, there is a gap separation.
  • the cross-flow impeller volute hole 6 is indicated on the cross-flow impeller volute. There are vents and do not involve adjacent indoor unit mounting boards.
  • Figure 1, Figure 2, the direction of the arrow in Figure 4 is Air flow direction.
  • the original wind tunnel wall trajectory 11 is the original wind tunnel wall projection line, that is, the profile line in the present invention.
  • the original wind tunnel wall trajectory changed by the setting of the air inlet 13 is indicated by a broken line, and the upper end projection point A is the tangent point of the tangential line of the outlet duct wall with the upper end being the tangent point.
  • the line connecting the projection point A from the upper end to the projection point B at the lower end is the connection from the upper end to the lower end.
  • FIG. 2 is a schematic perspective view showing the structure of the air inlet of the wind tunnel of the present invention, which visually shows the structure and the air intake of the air inlet of the present invention on the air duct wall.
  • FIG 3 is a plane rectangular coordinate system in which the right side view of the air conditioner indoor unit is a plane, and the projection point of the lower end is the origin, wherein the sector region marked with 0° to 200° is the upper end and the lower end of the air inlet.
  • the setting area of the line is a plane rectangular coordinate system in which the right side view of the air conditioner indoor unit is a plane, and the projection point of the lower end is the origin, wherein the sector region marked with 0° to 200° is the upper end and the lower end of the air inlet.
  • the setting area of the line is a plane rectangular coordinate system in which the right side view of the air conditioner indoor unit is a plane, and the projection point of the lower end is the origin, wherein the sector region marked with 0° to 200° is the upper end and the lower end of the air inlet. The setting area of the line.

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Abstract

一种空调室内机，包括贯流叶轮（8）出风风道（16），贯流叶轮（8）出风风道壁（15），贯流叶轮（8）出风风道壁（15）上开设有引风口（13），引风口（13）的上边端（12）与下边端（14）错开形成引风口（13），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，引风口（13）的上边端（12）与下边端（14）的连线与上边端（12）为切点的出风风道壁（15）切线正方向段的顺时针夹角（131）大于等于10°到小于等于200°。

Description

一种空调室内机 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，由室内机出风风道吹出。现有的空调室内机出风风道均为一封闭的风道，热交换空气在被吹出前与出风风道外侧的室内空气是隔绝的，因此，出风风道吹出的全部是热交换风。特别是在制冷模式下，空调室内机进出风口温差达到14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开启关闭来调控室温的工作状态，室内机的出风温度更低，人体经受这种室内机出风的直吹，就会感觉到很冷，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，在人们睡眠使用时，尤其突出。为了解决这一问题，必须设置混合送风装置，改善室内机出风与室内空气的温差。但室内机中的贯流叶轮的出风是通过在出风风道壁上折射形成出风的特性，决定了贯流叶轮的出风风道要求设计得尽可能窄小，且为向着贯流叶轮轴心线弧形弯曲。从室内机节约成本和美观上来讲也需要小型化设计，因此室内机的出风风道内是无法容纳通常的送风装置的，否则，强行设置送风装置，出风风道的出风会被堵塞，送风装置也会改变贯流叶轮的出风折射方向，严重影响出风风压和出风量。长期以来，空气调节技术领域的技术人员一直认为采用贯流叶轮进行热交换的室内机出风风道内是不可以设置送风装置的。如中国专利号CN201420218504，名为“一种空调器”的专利说明书第一页中就明确说明“现有具有安装部的空调一般都采用贯流风扇，贯流风扇，风道及与出风口的位置关系决定了难以在其内设置额外的送风装置”。中国专利号CN201420218683名为“一种具有送风装置的空调室内机”专利说明书第一页也明确说明“现有具有安装部的空调一般都采用贯流风扇，且贯流风扇以其轴线与出口平行而设置，因此，要获得满足要求的送风性能，这种空调的体积均较大，且不能在内设置额外的送风装置。”，此处的安装部的空调，是指安装在墙壁上的壁挂式空调室内机和吊在室内顶上的吊顶式空调室内机，此处的贯流风扇即为贯流叶轮。因此，空调领域的技术人员，总是将送风装置设计在紧靠室内机的出风口外侧，并为此设置了上下导风，左右导风，分流导风等名目繁多的导风装置，关于室内机出风口外侧的导风装置的专利技术文献也数以千计，目的就一个，改善区域温差，减小冷风直吹的影响。中国专利号2014207299611，名为“一种分体壁挂式空调器”的专利(简称D专利)提出的在贯流叶轮的送风风道的后蜗壳上，即送风风道壁上设置送风装置，导入室内未经热交换的空气并与送风风道中的热交换空气形成混合风后送至室内的技术方案。空调室内机贯流叶轮的送风风道即为室内机出风风道。该技术方案主要点是在送风风道壁上开口并在开口处安装设置引风组件，在所属室内机罩壳的相应位置形成附加进风口，引风组件如D专利说明书0008,0009自然段说明的那样：引风组件为多个引风格栅，“引风格栅包括位于所述后蜗壳型线上的第一部和背离所述送风风道方向弯曲的第二部”，很显然，D专利的引风组件也是设置在出风风道壁的外侧的。D专利的发明目的有二点：1,在送风风道形成与室内温差较小的混合风并送至室内，温差较小的混合风吹到人体身上，感觉凉而不 冷，较为柔和舒适，提高了用户的舒适性体验；2,增大了室内机出风口的送风量，有助于加快室内空气的流动速度和均匀性，降低了室内空气达到设定温度所需的时间和能耗。但D专利的技术方案有三个缺点：1,空调室内机出风风道壁外侧与室内机机壳所形成的空间是唯一可以用来设置粗厚保温管包裹着的空调连接管和空调排水管以及与室外机连接电源线的地方，这些管子和线几乎挤占满出风风道壁外侧的空间而紧贴着室内机出风风道壁外侧，现有空调室内机无论从美观还是从节约成本上来讲，都趋于超薄小型化设计，超薄小型化设计后这个空间除满足上述管道和线路布置外，室内机出风风道壁外侧已经没有多余的空间容纳引风组件了，因此，即便是强行设置引风组件，引风组件的引风口也会被经过保温管包裹的空调连接管，空调排水管和电源线顶住遮挡而引风不畅，引风量不足，甚至会出现引风组件中的引风格栅被顶住封闭引风口而无法引风的情况，达到D专利的第一条发明目的技术效果也就会较差，D专利说明书第三页第0026自然段强调开口71必须限定在后蜗壳7的特定段合适位置和对开口两端距离的限定，就已经隐含说明D专利的技术方案存在这个问题。2，正如D专利说明书第二页最后一行到第三页第一行所说，附加进风口距离出风口较远，才能避免室内机出风口的出风经附加进风口回流的问题，目前空调室内机的厚度，即垂直于墙壁方向上的长度已普遍由早年的300mm厚，薄形化设计到现在的135mm-200mm,在室内机罩壳上设置附加进风口设计得距离出风口再远，也不可能超过室内机的厚度，一出一进两个风口，仅仅相距135mm-200mm，特别是进出风口的进出风角度小于90°，回流问题肯定无法避免且较严重。空调的这个回流区域位于室内机下沿，通常远离人们在室内的活动区域，回流使得室内机出风口吹向通常需要空气调节的活动区域的风量减少，出风量对目的区域的减少，使得D专利不但不能减少反而增加了室内空气达到设定温度所需的时间和能耗，也就难以达到D专利的第2条发明目的技术效果了。3,现在空调市场竞争日趋激烈，空调利润已经日趋微薄，D专利技术方案要通过增加引风组件和附加进风口来达到发明目的，这些都会增加成本，势必因生产成本的增加而降低产品竞争力。
发明内容
1,本发明的目的就是提供一种空调室内机，在达到解决现有空调室内机出风不够柔和，送风风量少的问题即完全达到D专利发明目的同时，解决了D专利存在的引风组件引风效果差和附加进风口带来较严重的回流问题。
2,本发明可以在现有空调室内机的基础上不增加生产成本就可实施，提高了产品的市场竞争力。
本发明的发明目的是通过以下方式来实现的：一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端到下边端的连线与上边端为切点的出风风道壁切线正方向段的顺时针夹角大于等于10°到小于等于200°。
本发明的发明目的还可以通过这样的方式来实现的：一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针50°夹角为起始线再逆时针转0°到200°所形成的扇形区间内。
本发明的发明目的还可以通过这样的方式来实现的：一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针50°夹角为起始线再逆时针方向转40°到160°所形成的扇形区间内。
本发明的发明目的还可以通过这样的方式来实现的：一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针250°夹角为起始线再逆时针转大于0°到小于等于65°所形成的扇形区间内。
如上所述的空调室内机，室内机安装板上方的室内机机壳上开设风口。
如上所述的空调室内机，引风口通过安装板上的洞口与室内空气相通。
如上所述的空调室内机，引风口上设置可开启关闭的风门。
如上所述的空调室内机，引风口上下边端之间的垂直距离小于6mm。
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，贯流叶轮出风风道的四壁即为贯流叶轮出风风道壁，通常贯流叶轮出风风道由出风风道部分的蜗舌和蜗壳组成，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。请参见附图4，组成长方形引风口的两长边端以贯流叶轮出风风道出风方向161为方向，沿着出风风道15型线，首先位于出风风道15型线上的长方形引风口的长边为上边端A，对应的另一条长边则为下边端B。
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不同于一般的风机出风风道，一般的风机出风风道技术并不适用于贯流叶轮出风风道的设计，贯流叶轮的出风风道的型线为对着贯流叶轮轴心线方向弧形弯曲，因此，如仅是在原来的出风风道壁上简单开一个长方形风口，贯流叶轮流出的空气将会直接对着风口在风口形成正压而流出，不可能达到引进室内空气的目的,所以，必须要将“风口的上边端与下边端错开形成引风口”，此处的错开，是指上边端与下边端不再同时位于原出风风道壁轨迹上，与此同时，长方形风口的上边端与下边端在出风风道壁上的相对位置结构关系还必须满足特定的“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，上边端到下边端的连线与上边端为切点的出风风道壁切线正方向段的顺时针夹角大于等于10°到小于等于200°”这一技术特征才能形成引风口。请参见附图4，上边端投影点A到下边端投影点B的连线即为上边 端到下边端的连线，上边端为切点的出风风道壁切线是指以上边端投影点A为切点，以上边端所在的出风风道壁15型线在上边端投影点A为切点的切线，即附图4中的130，附图4中的161为贯流叶轮出风方向，切线130箭头方向即表示为切线与贯流叶轮出风方向161同方向，切线过切点A与贯流叶轮出风方向161同方向的线段即为切线正方向段，反之，则为切线负方向段。顺时针夹角是指上边端投影点A到下边端投影点B的连线以切点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4中131，131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，出风风道壁形线所形成的直线即为上边端为切点的出风风道壁切线，当引风口的上边端到引风口的下边端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，引风口外的室内空气就会被引进来与贯流叶轮出风风道内的热交换风混合后形成柔和的凉热交换风流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引入室内空气的情况，发明目的不但无法实现，还会使贯流叶轮出风风道内的热交换风被分流流出，导致室内机出风风量不足。
“引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针50°夹角为起始线再逆时针转0°到200°所形成的扇形区间内。”这一技术特征的实质含义是：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，上边端与下边端的连线，在以下边端的投影点为原点，水平的数轴为X轴，垂直的数轴为y轴建立的平面直角坐标系中，位于以X轴的正方向先逆时针转50°形成夹角的直线为起始线再逆时针方向转0°到200°所形成的扇形区间内，也就是说形成引风口的上边端和下边端位于这个扇形区间内且满足这样的相对位置结构关系。其中的“0°到200°”包括0°和包括200°。以X轴的正方向逆时针转50°夹角的起始线的意思是指是从X轴正方向数轴逆时针转到与原X轴正方向数轴形成50°夹角的一条直线。如果以本发明空调室内机左视图为平面建立平面直角坐标系，则引风口上边端与下边端相对位置结构关系必须满足“在垂直于室内机贯流叶轮轴心线，室内机出风口位于右下侧的投影平面中,上边端与下边端的连线，在以下边端的投影点为原点，以水平的数轴为X轴，以垂直的数轴为y轴建立的平面直角坐标系中，位于以X轴的负方向顺时针50°夹角的起始线再顺时针方向转0°到200°所形成的扇形区间内。”。两者的实质含义完全相同。其中的以X轴的负方向顺时针50°夹角的起始线的意思是指是从X轴负方向数轴顺时针转到与原X轴负方向数轴形成50°夹角的一条直线。当引风口的上边端与下边端在出风风道壁上满足这样的位置结构关系时，引风口形成负压区域，引风口外的室内空气就会被引进来与贯流叶轮出风风道内的热交换风混合后形成柔和的凉热交换风流出室内机出风口实现本发明的发明目的，满足这个技术特征的引风口的设置，引风口上下边端是落在一个扇形区间内的，因而可以有很多相对位置结构方案，其中有的结构方案设置的引风口的引风效果并不理想，只有在上述本发明空调室内机右视图为平面建立的平面直角坐标系中，当上边端与下边端的连线，在以下边端的投影点为原点，以X轴的正方向逆时针50°夹角为起始线再逆时针方向转40°到160°所形成的扇形区间内时，本发明引风口形成的负压区 域的负压效果才最佳，也就能最好地实现本发明的发明目的。其中的“40°到160°”包括40°和包括160°。当出风风道壁的型线为直线时，可视出风风道壁为特殊的弧线,但此时引风口的上下边端必须错开位于不同的直线型线上。理论上出风风道壁也可设计成背对着贯流叶轮轴心线方向弧形弯曲的，但出风风压低，出风量少。此时，在上述本发明空调室内机右视图为平面建立的平面直角坐标系中，引风口的上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针250°夹角为起始线再逆时针方向转大于0°到小于等于65°所形成的扇形区间内时，也能形成负压引风口，但负压效果较差，其中的“大于0°”不包括0°。
本发明贯流叶轮出风风道壁的蜗壳上开设引风口时，引风口的上边端与下边端有多种相对位置结构可以达到本发明目的，其中以上边端向出风风道内弯曲，下边端仍位于原贯流叶轮出风风道壁型线上的错开设置为最佳，这样形成的引风口就全部位于原贯流叶轮出风风道壁内，丝毫不挤占原出风风道壁外的空间，又基本上位于原出风风道壁型线上，对出风风道的出风几乎没有影响。本发明的原贯流叶轮出风风道壁是假设没有开引风口时的贯流叶轮的出风风道壁。由于引风口不存在挤占出风风道壁外的空间和被遮挡的问题，引风流畅，引风量充足，也就消除了D专利的引风组件的风口被顶住遮挡而引风效果差的缺点。当贯流叶轮流出的热交换风经向内弯曲的引风口上边端流向室内机出风口时，引风口向内弯曲的上边端和仍位于原贯流叶轮出风风道壁上的下边端组成的引风口形成负压区域，出风风道壁外的室内空气就会源源不断地被引进来与贯流叶轮出风风道内的热交换风混合后形成柔和的凉热交换风流出室内机出风口。此时的出风量应为贯流叶轮的热交换出风加引风口引进来的室内空气，总出风量加大，但热交换能量不变，仍为贯流叶轮流出来的热交换出风所携带的能量，室内机出风口输出热交换能量不变，如为制冷模式下的话，就是说，制冷量不变，出风量增加，出风温度就得到适当提高，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。因为温度得到适当提高的出风所携带的制冷量并没有减少，出风量获得了增加，室内空气循环加速，达到设定温度所需的时间减少，省电节能，从而达到本发明发明目的。
空调室内机机壳后背面装有安装板，通常安装板上设置有一组长方形洞口，通常为2到3个，长方形洞口与室内机上方的室内空气是相通的，与贯流叶轮蜗壳上的出风风道壁的外侧也是相通的，长方形洞口挂在金属挂墙板上的挂钩上，而挂墙板预先挂在墙上，室内机就是这样被悬挂在墙壁上。在挂墙板挂钩挂上安装板长方形洞口后，长方形洞口仍留有足够的洞口与室内相通，本发明是在贯流叶轮蜗壳的出风风道壁上设置引风口的，所以，引风口也就与室内相通了，此外，在通常情况下，在安装板与空调室内机进风部位的贯流叶轮蜗壳之间，安装板与挂墙板之间垂直方向上的空调室内机机壳上也会存在缝隙和洞口，现有空调也有室内机进风部位的贯流叶轮蜗壳上开有洞口的设计，这些缝隙和洞口以及安装板上的洞口都是现有空调室内机具有的，与贯流叶轮蜗壳上的出风风道壁的外侧是相通的，因此，并不需要专门的附加进风口的设置，利用这些空调室内机现有的技术技征，引风口形成的负压就可以通过这些缝隙和洞口作为进风口将室内空气源源不断地吸引进来与经过热交换的空气混合后流出室内机出风口。本发明的空调室内机，均包含这些空调室内机现有的技术技征。用于与挂墙板挂钩悬挂的洞口为公知技术，原来仅具有悬挂室内机的功能，在本发明引风口的设置后，才具有了将室内空气引进室内机出风风道的功能。本发明还可在室内机安装板上方的 室内机机壳上增开风口的方式扩大本发明引风口引风量。上述两种将引风口与室内相通的引风方式所用于引进室内空气的缝隙和洞口以及风口，均位于室内机顶部靠墙体位置，该缝隙和洞口以及风口与室内机出风口之间有室内机进风口相隔，且进风方向与室内机出风方向角度大于90°,因而根本不可能产生室内机出风口出风回流到这些缝隙和洞口以及风口中的可能，从而消除了D专利因开设附加进风口带来回流时不但不能减少反而会增加室内空气达到设定温度所需时间和耗能的缺点。
贯流叶轮的蜗壳为一次性注塑成型零件，在贯流叶轮蜗壳上的出风风道壁上开设引风口，仅是一个上边端向出风风道内弯曲，下边端仍位于原贯流叶轮出风风道壁上的长方形引风口，该长方形引风口可在贯流叶轮的蜗壳一次注塑成型时生成，所以并不增加生产成本。
长方形引风口上下边端之间可设置多条连接支撑条，成口琴状，以提高长方形引风口的强度和减少空气高速流动时有可能带来的振动。贯流叶轮流出的热交换空气是在出风风道壁上通过折射流出出风风道的，当长方形引风口上下边端之间的垂直距离控制在12mm之内，对折射角度的改变较小，能够确保折射后的出风流畅地流向室内机出风口，从而确保了不降低出风风压的情况下,达到引风口获得充足引风的目的。长方形引风口上下边端之间的垂直距离是指以下边端为起点，以下边端所在的出风风道壁的法线到上边端出风风道壁或上边端出风风道壁弧线延长线相交的直线距离。当长方形引风口上下边端之间的垂直距离控制在6mm之内时，贯流叶轮流出的热交换空气在出风风道壁上折射后的出风方向几乎与原出风折射方向平行，引风口引风量更大，对贯流叶轮出风没有影响。正因为本发明的引风口丝毫不占用出风风道壁外的空间，不会与出风风道壁外侧的管子，线路发生挤占的冲突和被顶住遮挡，本发明可在贯流叶轮蜗壳的出风风道壁全壁段上的任一位置设置引风口，也可在出风风道壁全壁段上设置3到8个甚至更多个引风口来提高引风量和引风进入出风风道中的均匀性，不存在D专利中必须对开口71限定在后蜗壳的特定的合适位置，否则就难以避免出现不均匀的出风和引风量不足的问题。
贯流叶轮进行热交换的室内机的出风风道较狭窄，很难容纳得下包括D专利中引风组件在内的通常的向内送风装置，即便免强设置了通常的送风装置，出风风道也会被挤占堵塞，改变贯流叶轮折射出风的方向，严重影响出风，因此，现有空气调节技术领域的技术人员，对空调室内机出风风道的普遍认识正如在本发明说明书背景技术中介绍的那样，是不能在内设置额外的送风装置的。本发明克服了这种技术偏见，在出风风道内设置了特定结构的引风口，不但能够为出风风道额外送风，增加了出风量，又不挤占风道，不会对出风风道的出风产生不良影响。
在贯流叶轮出风风道壁上向内开设长方形风口，并对组成长方形风口的上下两条长边端的相对位置结构关系作了特定的设计，使得长方形风口自身就成了具有了引风功能的引风口，也就无需再另设置引风组件了。没有了引风组件，也就不存在出风风道被挤占堵塞，严重影响出风的问题了，从而达到即实现解决了出风不够柔和，送风风量少的发明目的，还达到生产成本没有增加的情况下实施本发明的目的。而D专利的权利要求书中提出的技术解决方案，是在贯流风扇的送风风道的后蜗壳上形成开口，“在所述开口上形成具有引风口的引风组件”，由引风组件提供引风口，不但结构复杂，需要安装设置空间，也带来生产成本的增加。
本发明为专门针对采用贯流叶轮进出风的空调室内机而提出的的技术方案，是在室内机贯流叶轮出风风道壁上实施的技术方案。
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风并送至室内和增大室内机出风量的优点，完全达到D专利的发明目的并全面优于D专利发明目的技术效果。
2,本发明解决了D专利存在的“引风组件引风效果较差和附加进风口带来较严重的回流问题”。
3,本发明可以在现有空调室内机的基础上，不增加成本地实施本发明,大大提高空调的市场竞争力。
4,本发明克服了空调室内机的贯流叶轮出风风道内不能设置送风装置的技术偏见。
附图说明
附图1是本发明室内机结构右视图。
附图2是本发明出风风道壁开设引风口的立体结构示意图。
附图3是本发明下边端的投影点为原点的平面直角坐标系。
附图4是本发明上边端到下边端的连线与上边端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,附图3,附图4中的1为室内机机壳，2为室内机进风口，3为墙壁，4为挂墙板，5为热交换器，6贯流叶轮蜗壳洞口，7为室内机安装板，8为贯流叶轮，9为贯流叶轮蜗壳，10为贯流叶轮轴心，11为原出风风道壁轨迹，12为引风口上边端,13为引风口，130为上边端为切点的出风风道壁切线，131为上边端到下边端的连线与上边端为切点的出风风道壁切线正方向段的顺时针夹角，14为引风口下边端,15为贯流叶轮出风风道壁，16为贯流叶轮出风风道，161为贯流叶轮出风方向，17为室内机出风口，18为连接支撑条，A为上边端投影点，B为下边端投影点。
附图1中的1为室内机机壳，贯流叶轮出风风道16即为室内机出风风道，贯流叶轮出风风道壁15即为室内机出风风道壁。室内机机壳1内中布置安装了热交换器5,贯流叶轮8,贯流叶轮蜗壳9以及贯流叶轮出风风道16,室内机工作时，贯流叶轮8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5热交换形成热交换空气后，穿过贯流叶轮8在贯流叶轮出风风道16内，流经引风口上边端12时，在引风口13的上边端12和引风口下边端14之间形成负压区域，室外空气通过室内机进风口2与贯流叶轮蜗壳洞口6，被吸入引风口13与贯流叶轮出风风道16内的热交换空气混合形成柔和的热交换空气，由室内机出风口17流向室内。上边端投影点A到下边端投影点B的连线即为上边端到下边端的连线，与引风口13的上边端12和引风口下边端14之间的连线性质相同。如果没有贯流叶轮蜗壳洞口6，引风口13就通过安装板上用来与挂墙板悬挂的一组长方形洞口和空调室内机机壳上现有的缝隙和洞口与室内空气相通来吸入室内空气。两种引风口吸入室内空气的方法可以视引风量的需要采用其中的一种方式或同时采用。附图1中的贯流叶轮蜗壳与室内机安装板因作图的原因重合画在一起，实际上是存在缝隙分开的，贯流叶轮蜗壳洞口6是表示在贯流叶轮蜗壳上设有风口，并不涉及相邻的室内机安装板。附图1,附图2,附图4中箭头方向为 空气流动方向。上下边端连接支撑条18可设置多个，以提高引风口13的强度和抗振性。原出风风道壁轨迹11，为原出风风道壁投影线，即本发明中的型线。为了区别起见，因引风口13的设置而改变了的原出风风道壁轨迹，图中采用虚线表示，上边端投影点A即为上边端为切点的出风风道壁切线的切点，上边端投影点A到下边端投影点B的连线即为上边端到下边端的连线。
附图2是本发明出风风道壁开设引风口的立体结构示意图，直观地显示了本发明的引风口在出风风道壁上的结构和引风情况。
附图3是本发明以空调室内机右视图为平面，以下边端的投影点为原点的平面直角坐标系，其中所标注的0°到200°的扇形区域即为引风口上边端与下边端连线的设置区域。

Claims (8)

  1. 一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端到下边端的连线与上边端为切点的出风风道壁切线正方向段的顺时针夹角大于等于10°到小于等于200°。
  2. 一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针50°夹角为起始线再逆时针转0°到200°所形成的扇形区间内。
  3. 一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针50°夹角为起始线再逆时针方向转40°到160°所形成的扇形区间内。
  4. 一种空调室内机，包括贯流叶轮出风风道，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风口，风口的上边端与下边端错开形成引风口，引风口的上边端与下边端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，上边端与下边端的连线，位于 以下边端的投影点为平面直角坐标系原点，以X轴的正方向逆时针250°夹角为起始线再逆时针转大于0°到小于等于65°所形成的扇形区间内。
  5. 根据权利要求1或2或3或4所述的空调室内机，其特征是：室内机安装板上方的室内机机壳上开设风口。
  6. 根据权利要求1或2或3或4所述的空调室内机，其特征是：引风口通过安装板上的洞口与室内空气相通。
  7. 根据权利要求1或2或3或4所述的空调室内机，其特征是：引风口上设置可开启关闭的风门。
  8. 根据权利要求1或2或3或4所述的空调室内机，其特征是：引风口上下边端之间的垂直距离小于6mm。
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JP2000111083A (ja) * 1998-09-30 2000-04-18 Fujitsu General Ltd 空気調和機
CN203980464U (zh) * 2014-06-26 2014-12-03 美的集团股份有限公司 空调器室内机
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CN105042698A (zh) * 2015-08-18 2015-11-11 孙海潮 一种空调室内机
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Publication number Priority date Publication date Assignee Title
JP2000111083A (ja) * 1998-09-30 2000-04-18 Fujitsu General Ltd 空気調和機
CN203980464U (zh) * 2014-06-26 2014-12-03 美的集团股份有限公司 空调器室内机
CN204301261U (zh) * 2014-11-29 2015-04-29 青岛海尔空调器有限总公司 一种分体壁挂式空调器
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