WO2017054145A1 - 一种分体式空调室内机 - Google Patents

一种分体式空调室内机 Download PDF

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Publication number
WO2017054145A1
WO2017054145A1 PCT/CN2015/091149 CN2015091149W WO2017054145A1 WO 2017054145 A1 WO2017054145 A1 WO 2017054145A1 CN 2015091149 W CN2015091149 W CN 2015091149W WO 2017054145 A1 WO2017054145 A1 WO 2017054145A1
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Prior art keywords
air
indoor unit
indoor
air outlet
duct
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PCT/CN2015/091149
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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/CN2015/091149 priority Critical patent/WO2017054145A1/zh
Publication of WO2017054145A1 publication Critical patent/WO2017054145A1/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

Definitions

  • the invention belongs to the technical field of air conditioning and relates to only a split type air conditioner indoor unit.
  • the existing split type air conditioner includes an indoor unit and an outdoor unit.
  • the indoor air is sucked into the indoor unit by the cross flow impeller, and is exchanged with the heat exchanger to become heat exchange air, and the indoor unit emits air.
  • the wind duct blows out.
  • the existing split air-conditioning indoor unit air outlet ducts are all closed air ducts, and the heat exchange air is isolated from the indoor air outside the air outlet duct before being blown out. Therefore, all the blown air ducts are blown out. Heat exchange wind.
  • the temperature difference between the inlet and outlet of the split type air conditioner indoor unit is 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 interrupted around the set temperature. Turning on and off to regulate the working condition of the room temperature, the outlet air temperature of the indoor unit is lower, and the human body is subjected to the direct blow of the indoor air blower, and it will feel very cold, and is often subjected to the indoor air blow of the excessive temperature difference. Direct blowing, you will get what is commonly called "air conditioning disease", this problem is particularly prominent in the elderly, weak and sick, children's users, when people sleep. 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 characteristics of the cross-flow impeller in the indoor unit determine that the wind channel requirements are designed to be as narrow as possible, and curved to the axis of the cross-flow impeller. 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, seriously affecting the wind pressure and air volume. For a long time, those skilled in the art of air conditioning technology have always believed that an air supply device cannot be provided in an indoor air duct having a cross-flow impeller for heat exchange. For example, the Chinese patent No.
  • Chinese patent number CN204301261U the patent entitled “A split wall-mounted air conditioner” (referred to 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 cross flow impeller is the indoor 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 purpose of the invention of the D patent is twofold: 1.
  • the mixed air with a small temperature difference between the air supply duct and the room is sent to the room, and the mixed air with a small temperature difference is blown onto the human body, feeling cool and not cold, and is soft and comfortable.
  • the D patented technical solution has three shortcomings: 1.
  • the space formed by the outside of the air duct indoor air duct wall and the indoor unit casing is the only air conditioning connecting pipe and air conditioning drain pipe that can be used to set the insulation pipe package and the outdoor Where the machine is connected to the power cord, these pipes and wires almost occupy the space outside the wall of the wind tunnel and close to the air duct of the indoor unit.
  • the existing air-conditioned indoor unit tends to be ultra-thin and miniaturized in terms of aesthetics and cost saving. After the ultra-thin and miniaturized design, this space not only satisfies the above-mentioned pipeline and line layout, but also the indoor air outlet duct. There is no extra space on the outside of the wall to accommodate the air intake component.
  • the air inlet of the air intake component will be blocked by the air conditioning pipe wrapped by the heat preservation pipe, and the air conditioning drain pipe and the power cable will block the air.
  • the wind is not smooth, the amount of air intake is insufficient, and the technical effect of the first invention of the D patent is also poor.
  • the natural section of the third page of the D patent specification emphasizes that the opening 71 must be limited to a specific section of the rear volute 7. The proper position and the limitation of the distance between the two ends of the opening have already implied that the technical solution of the D patent has this problem.
  • 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.
  • One inlet and one air inlet are only 135mm-200mm apart. Especially the inlet and outlet air inlet and outlet angles are less than 90°, and the backflow problem cannot be avoided.
  • 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 competition in the air-conditioning market is becoming increasingly fierce, and the profit of air-conditioning has become increasingly meager.
  • the patented technical solution of D has to achieve the purpose of invention by increasing the air-inducing components and additional air inlets, which will increase the cost and will inevitably reduce the competitiveness of products due to the increase of production costs. .
  • the object of the present invention is to provide a split type air conditioner indoor unit, which solves the problem that the existing split type air conditioner is not soft enough, and the air supply volume is small, that is, the D patent invention is completely achieved, and the D patent is solved.
  • the poor wind induction effect of the air intake 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.
  • a split type air conditioner indoor unit including an indoor unit air outlet duct, an indoor unit air outlet duct wall, and the feature is: an indoor unit air outlet duct wall is opened There is a tuyere, the upper end and the lower end of the tuyere are staggered to form an air guiding opening, the connecting line between the upper end and the lower end, and the projection point at the lower end is the origin of the plane rectangular coordinate system, starting from the angle of 30° in the positive direction of the X axis. Turn counterclockwise into a fan-shaped section formed by 0° to 210°.
  • the split type air conditioner indoor unit has a tuyere on the mounting plate on the rear side of the indoor unit casing.
  • 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 indoor air outlet duct of the present invention is a cross-flow impeller air duct, and the four walls forming the wind duct are the air duct wall, and the indoor air duct wall is the cross-flow impeller. Wind duct wall.
  • the cross-flow impeller air outlet duct is composed of a volute of the air outlet duct portion.
  • the cross-flow impeller has a long cylindrical shape
  • the cross-flow duct on the cross-flow impeller volute has a rectangular cross section
  • the cross section of the air outlet of the indoor unit is
  • the rectangular, cross-flow impeller axis line is parallel to the long center line of the above-mentioned rectangle, so the tuyere opened on the outlet duct wall of the cross-flow impeller is correspondingly a rectangle parallel to the long center line.
  • the two long ends forming the rectangular tuyere are in the order of the flow direction of the cross-flow impeller to the outlet of the indoor unit.
  • the long side of the rectangular tuyere on the wall of the outlet duct is the upper end, and the other long side corresponding thereto Then it is the lower end.
  • the characteristics of the cross-flow impeller determine that the outlet duct is different from the general fan duct, and the shape of the duct of the cross-flow impeller must be curved curved toward the axis of the cross-flow impeller, as in the original
  • a rectangular air outlet is opened on the wall of the air outlet, and the two long sides of the rectangular air outlet are still located on the curved curved air duct wall, and the air flowing out of the cross flow impeller will directly flow toward the air outlet to form a positive pressure. 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 vent", and the staggered here means that the upper end and the lower end are no longer at the same time on the original curved curved wind tunnel wall trajectory, at the same time
  • the structural relationship between the upper end and the lower end of the air inlet in the air duct must satisfy the specific "connection between the upper end and the lower end.
  • the projection point at the lower end is the origin of the plane rectangular coordinate system, with the positive direction of the X axis.
  • the 30° angle is a technical feature in the sector of the sector formed by the counterclockwise rotation of 0° to 210°.
  • the right side view of the air conditioner indoor unit of the present invention is a plane, and 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, and the vertical number axis is the y axis.
  • the starting line which is at an angle of 30° in the positive direction of the X-axis rotates counterclockwise from 0° to 210°, that is, the upper end is located in this sector.
  • the starting line of the angle of 30° in the positive direction of the X-axis means a straight line that is 30° counterclockwise from the positive X-axis direction.
  • the relative position structure relationship between the upper end and the lower end of the air inlet must satisfy the line connecting the upper end and the lower end, and the projection point at the lower end is the origin to
  • the horizontal axis is the X axis
  • the vertical axis is the y axis.
  • the starting line is located at an angle of 30° in the negative direction of the X axis, and the clockwise direction is 0° to 210°. Within the sector range.”. The substantive meaning of the two is exactly the same.
  • the starting line of the angle of 30° in the negative direction of the X-axis means a straight line that is 30° clockwise from the negative X-axis direction.
  • the right side view of the air conditioner indoor unit of the present invention refers to a projection plane perpendicular to the axial center of the indoor flow impeller, and the indoor air outlet is located on the left side, that is, FIG. 1 of the present invention, and vice versa, the left side view of the air conditioner indoor unit.
  • the heat exchange of the inside of the channel is mixed to form a gentle cool heat exchange air flowing out of the indoor unit air outlet to achieve the object of the present invention.
  • the air outlet duct is curved curved toward the axial direction of the cross-flow impeller, the heat exchange air flowing out from the cross-flow impeller cannot ensure an ideal negative pressure region 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 outlet is insufficient.
  • the projection point at the lower end is the origin, and the angle of the positive direction of the X axis is 30°.
  • the line is rotated in the sector-shaped section formed by the counterclockwise direction from 60° to 180°, the negative pressure region formed by the air inlet of the present invention has the best negative pressure effect, and the object of the present invention can be best achieved.
  • the invention can also provide a damper that can be opened and closed on the air inlet and controlled to be turned off by the air conditioner remote control, so that the air outlet of the air outlet of the air conditioner is mixed with the air formed by the total heat exchange and the heat exchange air and the indoor air.
  • Any conversion between the winds can meet the requirements of the original cryogenic refrigeration and the need to rapidly heat up the local area during heating, and meet the need to provide a gentle cool heat exchange wind, providing users with flexible choices.
  • Experience mode Since the air inlet is located on the inner side of the wind tunnel wall, the damper must be placed on the inner side of the air duct wall, and still does not occupy the space outside the wind duct wall.
  • the upper end and the lower end of the tuyere of the present invention are staggered to form an air guiding opening, the upper end and the lower end of the tuyere have a plurality of better positional structures, wherein the upper end is curved toward the air outlet duct, and the lower end is still located.
  • the staggered arrangement of the original cross-flow impeller air duct wall is optimal, so that the air inlets formed are all located in the original cross-flow impeller air duct, so as not to occupy the space outside the original wind duct wall, and basically On the trajectory of the original wind tunnel wall, there is almost no influence on the wind of the wind tunnel.
  • 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 disadvantage that the air outlet of the D-guided air-inducing component is blocked and the air-inducing effect is poor.
  • the heat exchange air flowing out of the cross flow impeller flows through the upper end of the inwardly curved air inlet to the indoor air outlet, 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 airflow duct of the cross flow fan to form a soft cool heat exchange air flowing out of the indoor unit.
  • 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 unit air outlet is unchanged. If it is in the cooling mode, that is to say, the cooling capacity is constant, the air volume is increased, and the outlet air temperature is appropriately increased, so that the air outlet of the indoor unit air outlet is changed from the human body feeling cold wind to the cool air, and the air outlet 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 split type air conditioner indoor unit is provided with a mounting plate, and the mounting plate is provided with a set of rectangular openings, and the rectangular opening is generally connected with the indoor air above the indoor unit, and the outer side of the cross flow impeller volute air outlet wall It is also open, the rectangular opening is hung on the hook on the metal wall panel, and the wall panel is pre-mounted on the wall, so that the indoor unit is suspended from 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 negative pressure formed by the air inlet can be continuously sucked into the air through the rectangular opening on the mounting plate as a air inlet to mix with the heat exchanged air and then flow out of the indoor air outlet.
  • the hole for hanging on the mounting plate for hooking with the wall panel is a well-known technology. Originally, it only has the function of hanging the indoor unit. After the air inlet of the present invention is installed, the indoor air is introduced into the indoor air outlet duct. The function.
  • the invention can also open a tuyere on the mounting plate on the rear back surface of the indoor unit casing so that the indoor air inlet is communicated with the outside of the cross flow impeller volute air outlet duct wall, and the indoor air inlet of the existing air conditioner indoor unit is used to introduce the indoor air inlet.
  • the air reaches the air inlet of the present invention through the air outlet opened on the mounting plate, and the two types of air guiding manners for connecting the air inlet to the indoor air are not re-arranged on the indoor unit casing, that is, the cover of the D patent is opened.
  • the air inlet is provided, and the rectangular opening on the mounting plate is located at the top of the indoor unit at the wall position, and the opening is separated from the indoor air outlet by the indoor air inlet, and the air inlet direction of the opening is greater than 90° with the indoor air outlet direction, thus It is impossible to generate the possibility that the air outlet of the indoor unit returns to the opening of the installation panel or the opening of the air outlet, thereby eliminating the D patent, because the opening of the additional air inlet can not reduce but increase the indoor air to the setting.
  • the disadvantages of temperature and energy consumption In order not to affect the suspension strength of the indoor unit casing mounting plate and to obtain the required indoor air, a plurality of air outlets may be opened on the mounting plate, preferably in a manner of a small circular opening that is not connected.
  • 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.
  • the air outlet is provided on the indoor unit casing mounting plate, and can also be formed when the indoor unit casing mounting plate is formed once, without increasing the production cost.
  • the center line of the two long end ends of the rectangular air inlet should be parallel with the axial line of the cross flow impeller, so that the introduced indoor air and the heat exchange air in the air duct of the cross flow impeller are sufficiently uniformly mixed.
  • 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 on the air outlet wall
  • the upper end is still located on the wind tunnel wall of the original cross-flow impeller, and the vertical distance between the upper and lower ends of the rectangular air inlet is controlled within 8 mm, and the change of the refraction angle is small.
  • the air inlet of the present invention does not occupy the space outside the wall of the wind tunnel, the air conditioning connecting pipe, the air conditioning drain pipe and the power line which are not wrapped with the heat insulating pipe outside the air outlet duct wall are in conflict with each other and are blocked.
  • the invention can be provided with an air guiding opening at any position on the full air passage section of the cross flow impeller volute air outlet duct, or a plurality of air guiding openings can be arranged on the full air duct section of the air outlet air duct wall to increase the air introducing amount.
  • the uniformity of the induced air entering the air duct there is no need in the D patent to define the opening 71 at a specific suitable position of the rear volute, otherwise it is difficult to avoid the problem of uneven wind and insufficient air volume.
  • the vertical distance between the upper and lower ends of the rectangular air inlet is controlled to be within 4 mm.
  • 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 wind tunnel will also be crowded and blocked, which will seriously affect the wind. Therefore, it is difficult for the technicians in the field of air conditioning technology to have a general understanding of whether or not air blowers can be installed in the air duct of the air conditioner.
  • the positional relationship determines that it is difficult to set up an additional air supply device within it.
  • the invention overcomes this technical prejudice, and provides a special structure air guiding opening in the air outlet duct, which can not only provide additional air supply for the air outlet duct, but also increases the air volume, and has no adverse effect on the air outlet of the air outlet duct. .
  • a rectangular tuyere is opened inward on the cross-flow impeller air passage, and the relative positional relationship between the shape of the upper and lower long ends of the rectangular tuyere is specifically designed, so that the rectangular tuyere does not need to be provided with a separate air guiding component, and
  • the air inlet of the air intake function eliminates the need for an additional 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 claims of the D patent is based on the formation of an opening in the rear volute of the air duct of the cross-flow fan, "forming a wind-guiding assembly having an air inlet on the opening"
  • the air guiding port is provided by the air guiding component, which not only has a complicated structure, but also needs to install a setting space, and also brings an increase in production cost.
  • the present invention has the following advantages and positive effects:
  • the present invention fully achieves the object of the invention of the D patent and is superior to the technical effect of the purpose of the invention of the D patent.
  • the invention solves the problem that the D-patent has the principle that the air-inducing component is difficult to be ideal and the additional air inlet brings a serious backflow problem.
  • the invention can be implemented on the basis of the existing air-conditioning indoor unit without increasing the cost, and the market competitiveness of the air conditioner is greatly improved.
  • 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.
  • 1 in Figure 2 is an indoor unit casing
  • 2 is an indoor unit air inlet
  • 3 is a wall
  • 4 is a wall panel
  • 5 is a heat exchanger
  • 6 is a tuyere on the indoor unit mounting plate
  • 7 is Indoor unit mounting plate
  • 8 is a cross-flow impeller
  • 9 is a cross-flow impeller volute
  • 10 is a cross-flow impeller axis
  • 11 is the original wind tunnel wall trajectory
  • 12 is the upper end of the air inlet
  • 13 is the air inlet
  • 14 For the lower end of the air inlet
  • 15 is a cross-flow impeller air duct wall
  • 16 is a cross-flow impeller air duct
  • 17 is an indoor unit air outlet
  • 18 is a connecting support bar.
  • 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 inhaled 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 inlet 13 and the lower end 14 of the air inlet.
  • the outdoor air passes through the air inlet 2 of the indoor unit and the air outlet 6 of the indoor unit mounting plate, and is sucked into the air inlet 13 and the cross flow impeller.
  • the heat exchange air in the duct 16 is mixed to form soft heat exchange air, which is flowed into the room from the indoor unit air outlet 17. If the tuyere 6 is not provided on the indoor unit mounting plate, the air inlet 13 draws in the outdoor air through a set of rectangular openings for hanging from the wall panel to communicate with the indoor 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 damper When the damper is provided on the air vent 13, the damper is closed, and the heat exchange air flowing out of the indoor air outlet 17 is exactly the same as the heat exchange air flowing out from the air outlet of the original air conditioner indoor unit.
  • Two air outlet modes are available for users to use.
  • the direction of the arrow in Figure 2 of Figure 1 is the direction of air flow.
  • a plurality of upper and lower end connection support bars 18 may be provided to improve the strength and vibration resistance of the air intake opening 13.
  • the original wind tunnel wall trajectory 11 is the original wind tunnel wall projection line.
  • the original wind tunnel wall trajectory changed due to the setting of the air inlet 13 is indicated by a broken line.
  • 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 of 0° to 210° marked 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 of 0° to 210° marked 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 of 0° to 210° marked is the upper end and the lower end of the air inlet.

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  • Chemical & Material Sciences (AREA)
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Abstract

一种分体式空调室内机，包括室内机出风风道（16），室内机出风风道壁（15），室内机出风风道壁（15）上开设有风口，风口的上边端（12）与下边端（14）错开形成引风口（13），上边端（12）与下边端（14）的连线，位于以下边端（14）的投影点为平面直角坐标系原点，以X轴的正方向30°夹角为起始线逆时针方向转0°到210°所形成的扇形区间内。上述分体式空调室内机具有出风风量大，出风为换交换风与室内空气形成凉而不冷的混合风的优点。

Description

一种分体式空调室内机 技术领域
本发明属于空气调节技术领域，仅涉及一种分体式空调室内机。
背景技术
现有分体式空调包括室内机和室外机，其中室内机在工作时，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。现有的分体式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，分体式空调室内机进出风口温差约为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，儿童的使用者身上，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特点决定了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，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CN203857578U，名为“一种空调器”的专利说明书第一页中就明确说明了“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”。此处的贯流风扇即为贯流叶轮。因此，空调领域的技术人员，把送风装置的设计总是放在紧靠室内机的出风口外侧，并为此设置了上下导风，左右导风等名目繁多的导风送风装置，关于室内机出风口外侧的导风送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CN204301261U，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。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保温管包裹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，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要小于90°，回流问题肯定无法避免。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分体式空调室内机，在达到解决现有分体式空调出风不够柔和，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：一种分体式空调室内机，包括室内机出风风道，室内机出风风道壁，其特征是：室内机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，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30°夹角为起始线逆时针方向转0°到210°所形成的扇形区间内。
如上所述的分体式空调室内机，室内机机壳后背面的安装板上开设风口。
如上所述的分体式空调室内机，引风口通过安装板上的洞口与室内空气相通。
如上所述的分体式空调室内机，引风口上设置可开启关闭的风门。
本发明中的室内机出风风道即为贯流叶轮出风风道，形成出风风道的四壁即为出风风道壁，室内机出风风道壁即为贯流叶轮出风风道壁。贯流叶轮出风风道由出风风道部分的蜗壳组成，通常贯流叶轮为长圆筒形，贯流叶轮蜗壳上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，所以贯流叶轮的出风风道壁上开设的风口也相对应为长中心线与之平行的长方形。组成长方形风口的两长边端以贯流叶轮到室内机出风口的出风流动方向为先后顺序，首先位于出风风道壁上的长方形风口的长边为上边端，对应的另一条长边则为下边端。
贯流叶轮的特性决定了出风风道不同于一般的风机出风风道，贯流叶轮的出风风道形状必须为对着贯流叶轮轴心线方向弧形弯曲，如仅是在原来的出风风道壁上开一个长方形风口，长方形风口的两长边仍位于弧形弯曲的出风风道壁上，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，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弧形弯曲的出风风道壁轨迹上，与此同时，引风口上边端与下边端在出风风道内相对位置的结构关系必须满足特定的“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30°夹角为起始线逆时针方向转0°到210°所形成的扇形区间内”这一技术特征。这一技术特征的实质含义是：以本发明空调室内机右视图为平面，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30°夹角的起始线逆时针方向转0°到210°所形成的扇形区间内，也就是说上边端位于这个扇形区间内。其中的以X轴的正方向30°夹角的起始线的意思是指是从X轴正方向逆时针30°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“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30°夹角的起始线，顺时针方向转0°到210°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30°夹角的起始线的意思是指是从X轴负方向顺时针30°夹角的一条直线。本发明空调室内机右视图是指垂直于室内机贯流叶轮轴心线，室内机出风口位于左侧的投影平面，即本发明附图1，反之，则为空调室内机左视图。当引风口的上边端与引风口的下边端在出风风道内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。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，贯流叶轮流出的热交换空气就不能保证在引风口形成理想的负压区域，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，导致室内机出风口风量不足。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30°夹角为起始线逆时针方向转60°到180°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最佳，也就能最好地实现本发明的发明目的。
本发明还可在引风口上设置可开启关闭的风门并通过空调遥控器控制关启，使得空调室内机出风口的出风在全热交换出风和热交换出风与室内空气形成的混合出风之间任意转换，即可满足原有低温制冷的使用要求和制热时需要对局部区域快速升温的需要，又可满足提供柔和的凉热交换风的需要，给使用者提供了灵活选用的体验模式。由于引风口位于出风风道壁的内侧，设置的风门也一定在出风风道壁的内侧上，依然不会挤占出风风道壁外侧的空间。
本发明风口的上边端与下边端错开形成引风口时，风口的上边端与下边端有多种较佳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 于原出风风道壁轨迹上，对出风风道的出风几乎没有影响。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遮挡而引风效果差的缺点。当贯流叶轮流出的热交换风经过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风机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。
分体式空调室内机机壳后背面装有安装板，安装板上设置有一组长方形洞口，通常长方形洞口与室内机上方的室内空气是相通的，与贯流叶轮蜗壳出风风道壁的外侧也是敞开相通的，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。引风口形成的负压就可以通过安装板上的长方形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。安装板上的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，在本发明的引风口的设置后，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机壳后背面的安装板上开设风口的方式使室内机进风口与贯流叶轮蜗壳出风风道壁外侧相通，并利用现有空调室内机的进风口引进室内空气经安装板上开设的风口到达本发明的引风口，上述两种将引风口与室内相通的引风方式并未在室内机机壳上重新设置风口，即D专利所说的罩壳上开设附加进风口，安装板上的长方形洞口位于室内机顶部靠墙***置，该洞口与室内机出风口有室内机进风口相隔，且洞口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安装板上的洞口或开设的风口中的可能，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。为了不影响室内机机壳安装板的悬挂强度和获得所需的室内空气，在安装板上可以开设多个风口，以一组并不相连的小圆形洞口的方式开设为佳。
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。同理，在室内机机壳安装板上开设风口，也可在室内机机壳安装板一次成形时形成，同样不增加生产成本。
长方形引风口的两长边端的中心线应与贯流叶轮轴心线平行，以利引进来的室内空气与贯流叶轮出风风道内的热交换风充分均匀混合。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，当下边端仍位于原贯流叶轮出风风道壁上，长方形引风口上下边端之间的垂直距离控制在8mm之内，对折射角度的改变很小，能够确保折射后的出风方向几乎与原出风折射方向平行，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。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保温管包裹的空调连接管，空调排水管和电源线发生挤占的冲突和被遮挡，本发明可在贯流叶轮蜗壳出风风道全风道段上的任一位置上设置引风口，也可在出风风道壁全风道段上设置许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。本发明实施时以长方形引风口上下边端之间的垂直距离控制在4mm之内效果最好。
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，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内能否设置送风装置的普遍认识是难以在其内设置，如中国专利号CN203857578U，名为“一种空调器”的专利说明书第一页中说明的“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”一样。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，而且对出风风道的出风没有不良影响。
在贯流叶轮风道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形状，相对位置关系作了特定的设计，使得长方形风口无需另设引风组件，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的基础上，“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。
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“引风组件引风效果难以理想和附加进风口带来较严重的回流问题”
3,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。
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为挂墙板，5为热交换器，6为室内机安装板上的风口，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，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，17为室内机出风口，18为连接支撑条。
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中，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与室内机安装板上的风口6,被吸入引风口13与贯流叶轮出风风道16中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。如果没有在室内机安装板上开设风口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与室内空气相通来吸入室外空气。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。当在引风口13上设置风门时，关闭风门，室内机出风口17流出的热交换风与原有的空调室内机出风口流出的热交换风一模一样。两种出风模式，供使用者任意取用。附图1附图2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，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。
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210°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 (4)

  1. 一种分体式空调室内机，包括室内机出风风道，室内机出风风道壁，其特征是：室内机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，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30°夹角为起始线逆时针方向转0°到210°所形成的扇形区间内。
  2. 根据权利要求1所述的分体式空调室内机，其特征是：室内机机壳后背面的安装板上开设风口。
  3. 根据权利要求1所述的分体式空调室内机，其特征是：引风口通过安装板上的洞口与室内空气相通。
  4. 根据权利要求1所述的分体式空调室内机，其特征是：引风口上设置可开启关闭的风门。
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