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CN-119826254-B - Air conditioner outdoor unit

CN119826254BCN 119826254 BCN119826254 BCN 119826254BCN-119826254-B

Abstract

The invention discloses an air conditioner outdoor unit which comprises a machine shell, wherein a heat exchanger and a fan are arranged in the machine shell, an air outlet is formed in the machine shell, and a grid is arranged at the air outlet. The grille includes radial ribs. The radial ribs are changed along the radial direction of the outer periphery of the center of the grille along the radial extension of the grille, the radial ribs change along the width of the air outlet direction, the spiral air outlet at the downstream of the fan is changed into axial air outlet, the static pressure resistance of the whole machine is improved, and the air supply distance is increased.

Inventors

  • WANG HAONAN
  • HU TIANEN
  • WANG QINGJIE

Assignees

  • 青岛海信日立空调系统有限公司

Dates

Publication Date
20260508
Application Date
20250228

Claims (8)

  1. 1. An outdoor unit of an air conditioner, comprising: The shell is provided with an air outlet and an air return opening; A heat exchanger disposed within the housing, the heat exchanger configured to exchange heat with flowing air; A fan disposed within the housing, the fan configured to provide air flow power, and The grid is arranged at the air outlet and comprises radial ribs, the radial ribs extend along the radial direction of the grid, and the width of the radial ribs along the air outlet direction changes along the radial direction from the center of the grid to the periphery of the grid; Wherein the maximum width of the radial ribs is set at a radius of 60% -80% away from the center of the grid; the width of the radial ribs in the air outlet direction is firstly reduced, then increased and then reduced along the radial direction from the center of the grille to the periphery; the radial ribs comprise a first radial rib section, a second radial rib section and a third radial rib section along the radial direction from the center of the grid to the periphery; The radial rib is provided with an inlet molded line, the coordinate value of the inlet molded line on one section of the radial rib along the air outlet direction is increased and then reduced along the radial direction from the center of the grille to the periphery, the coordinate value of the inlet molded line on the second section of the radial rib along the air outlet direction is reduced along the radial direction from the center of the grille to the periphery, and the coordinate value of the inlet molded line on the third section of the radial rib along the air outlet direction is increased and then reduced along the radial direction from the center of the grille to the periphery.
  2. 2. The outdoor unit of claim 1, wherein the maximum width of the radial ribs is set at a position where the outlet wind speed of the outdoor unit is maximum.
  3. 3. The outdoor unit of claim 1 or 2, wherein the radial rib has an outlet profile and an inlet profile, and the radial rib is twisted in a direction opposite to a rotation direction of the fan with the outlet profile as a starting position.
  4. 4. The outdoor unit of claim 1 or 2, wherein the radial ribs include a radial rib first section, a radial rib second section, and a radial rib third section in a radial direction from a center to an outer circumference of the grill; the radial ribs are provided with outlet molded lines, the coordinate value of the outlet molded line on one section of the radial ribs along the air outlet direction is firstly reduced and then increased along the radial direction from the center of the grille to the periphery, the coordinate value of the outlet molded line on the second section of the radial ribs along the air outlet direction is increased along the radial direction from the center of the grille to the periphery, and the coordinate value of the outlet molded line on the third section of the radial ribs along the air outlet direction is reduced along the radial direction from the center of the grille to the periphery.
  5. 5. The outdoor unit of claim 1 or 2, wherein the radial ribs include a radial rib first section, a radial rib second section, and a radial rib third section in a radial direction from a center to an outer circumference of the grill; The width change trend of the first radial rib section, the second radial rib section and the third radial rib section is different.
  6. 6. The outdoor unit of claim 1 or 2, wherein the radial ribs include a radial rib first section, a radial rib second section, and a radial rib third section in a radial direction from a center to an outer circumference of the grill; the radial ribs define a plurality of control surfaces, the control surfaces are tangential surfaces formed by cutting the radial ribs along the air outlet direction through cylinders with different radiuses, and the central axis of the cylinder coincides with the center of the grid; The radial rib is provided with an outlet molded line and an inlet molded line, a first intersection point is arranged between the outlet molded line and the control surface, a second intersection point is arranged between the inlet molded line and the control surface, the center of an annular surface formed by the wind inlet side of the outer frame of the grille is used as a coordinate origin, the connecting line of the first intersection point and the coordinate origin is a first connecting line, the connecting line of the second intersection point and the coordinate origin is a second connecting line, and the included angle between the first connecting line and the second connecting line is the wrap angle of the radial rib; along the radial direction of the center of the grid to the periphery, the wrap angle on the first section of the radial rib is increased and then decreased, the wrap angle on the second section of the radial rib is gradually decreased, and the wrap angle on the third section of the radial rib is gradually increased.
  7. 7. The outdoor unit of claim 1 or 2, wherein the radial ribs include a radial rib first section, a radial rib second section, and a radial rib third section in a radial direction from a center to an outer circumference of the grill; the radial ribs define a plurality of control surfaces, the control surfaces are tangential surfaces formed by cutting the radial ribs along the air outlet direction through cylinders with different radiuses, and the central axis of the cylinder coincides with the center of the grid; The radial rib is provided with an outlet molded line along the central outward circumferential direction of the grid, a first intersection point is arranged between the outlet molded line and the control surface, the center of an annular surface formed by the wind inlet side of the outer frame of the grid is used as an origin of coordinates, the included angle between the connecting line of the first intersection point and the origin of coordinates and the X axis is the front bending angle of the radial rib, the front bending angle on one section of the radial rib is firstly reduced and then increased along the radial direction of the central outward circumferential direction of the grid, the front bending angle on the two section of the radial rib is increased, and the front bending angle on the three section of the radial rib is increased.
  8. 8. The outdoor unit of claim 1 or 2, wherein the radial ribs include a radial rib first section, a radial rib second section, and a radial rib third section in a radial direction from a center to an outer circumference of the grill; the radial rib is provided with an outlet molded line and an inlet molded line, the outlet molded line and the inlet molded line on one section of the radial rib are increased along the radial direction of the periphery of the center of the grid, the coordinate values of the outlet molded line and the inlet molded line on the second section of the radial rib along the air outlet direction are increased and then reduced, and the coordinate values of the outlet molded line and the inlet molded line on the third section of the radial rib along the air outlet direction are reduced.

Description

Air conditioner outdoor unit Technical Field The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit. Background The outdoor unit of the air conditioner comprises a shell, wherein a heat exchanger and a fan are arranged in the shell, and a grille is arranged at an air outlet of the shell. When the outdoor unit is installed in a narrow machine position or in environments with a shutter and the like, hot air discharged from an air outlet of the outdoor unit is influenced by an air field, the air supply distance of the hot air is short, the heat exchange efficiency of the outdoor unit is influenced, and then the refrigerating effect of the whole machine is influenced. The existing air conditioner generally improves the heat exchange efficiency of the outdoor unit by optimizing the control mode of the refrigerating system, and does not fundamentally solve the problem of short air supply distance of the outdoor unit. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention Aiming at the problems pointed out in the background art, the invention provides an air conditioner outdoor unit, which is used for optimizing the structure of a grille and improving the air supply distance. In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme: In some embodiments of the present application, an outdoor unit of an air conditioner is provided, which includes a casing, a heat exchanger and a fan are disposed in the casing, an air outlet is disposed on the casing, and a grille is disposed at the air outlet. The grille includes radial ribs. The radial ribs have a varying width along the air outlet direction along the radial direction of the center to the outer periphery of the grille along the radial extension of the grille. The technical scheme has the advantages that the width of the radial ribs is changed along the air outlet direction, the width of the radial ribs is in a wide area and also in a narrow area, the position of the radial ribs with the changed width changes, the spiral air outlet at the downstream of the fan is changed into axial air outlet, namely, the circumferential speed potential energy of the downstream wind speed is converted into pressure potential energy, the static pressure resistance of the whole machine is improved, and the air supply distance can be increased. Specifically, when the air outlet of the downstream spiral of the fan hits the radial ribs, the air direction is forcibly changed, and when the fan rotates, if the axial air outlet effect is to be achieved, the width of the radial ribs needs to be increased to ensure the air direction changing effect. After the wind direction is changed, the gathering type of the air supply is lifted, the average air speed at a certain blowing distance is lifted, namely the area of the concentrated air speed is reduced, under the condition that the air quantity is the same, the air speed is lifted, and when the air is blown outwards, the distance of the air supply is lifted compared with the distance of the air supply before the wind direction is changed. When the wind blows out, the surrounding air has the viscous effect on the wind, the higher the wind speed is, the better the viscous effect can be resisted, and the farther the wind blows out, the effect of improving the air supply distance is achieved. In some embodiments of the application, the maximum width of the radial ribs is disposed at a radius of 60% -80% away from the center of the grid. The other technical scheme has the advantages that the main air outlet area is 60-80% of the radius when the fan rotates, namely the air speed in the area is highest, and the maximum width of the radial ribs is set at the radius 60-80% away from the center of the grille, so that the air supply gathering effect after the wind direction is changed is improved, and the distance is further improved. In some embodiments of the present application, the radial ribs decrease, increase, and decrease in width in the air-out direction along the radial direction from the center to the outer periphery of the grille. The other technical scheme has the advantages that the air outlet speed is different at different positions of the grille, and the air outlet speed of the outdoor unit is considered by the change of the width of the radial ribs so as to achieve the effect of better improving the air supply distance. In some embodiments of the present application, a maximum width of the radial rib is set at a position of a maximum wind speed of the outdoor unit. The other technical scheme has the advantages that the wind speed cannot be directly changed at the position with the maximum wind outlet speed,