CN221237936U - Air conditioner outdoor unit - Google Patents

Abstract

The application discloses an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The air conditioner outdoor unit includes: a housing; an outdoor heat exchanger disposed within the housing; the fan is arranged at the air outlet side of the outdoor heat exchanger and is used for driving air to flow; the motor bracket is provided with a supporting arm and a motor supporting plate, the motor supporting plate is connected with the fan, and the supporting arm is positioned at two vertical sides of the motor supporting plate; the support arm comprises two arm bodies which are transversely arranged at intervals, the width of each arm body is recorded as W1, the total width of the motor support is recorded as W2, and the relation between W1 and W2 satisfies: w1/w2=1/8 to 1/5. The air conditioner outdoor unit reduces noise on the basis of ensuring strength.

Description

Air conditioner outdoor unit

Technical Field

The application relates to the technical field of air treatment, in particular to an air conditioner outdoor unit.

Background

An air conditioner is a device for controlling the temperature and humidity of indoor air using a refrigeration cycle. The air conditioner may include an outdoor unit and an indoor unit installed separately.

The outdoor unit adopts axial fan more, and axial fan and motor assembly are in the same place and are constituteed the fan, and the motor drives axial fan through driving rotor rotation and move, and the motor is installed on the motor support, and axial fan is at the operation in-process, and the air current can produce the noise through the motor support.

Disclosure of utility model

The application provides an air conditioner outdoor unit, which reduces noise on the basis of ensuring strength.

In one aspect of the present application, an outdoor unit of an air conditioner includes: a housing; an outdoor heat exchanger arranged in the shell; the fan is arranged at the air outlet side of the outdoor heat exchanger and is used for driving air to flow; the motor bracket is provided with a supporting arm and a motor supporting plate, the motor supporting plate is connected with a fan, and the supporting arm is positioned at two vertical sides of the motor supporting plate; the support arm comprises two arm bodies which are transversely arranged at intervals, the width of each arm body is recorded as W1, the total width of the motor support is recorded as W2, and the relation between W1 and W2 satisfies: w1/w2=1/8 to 1/5.

In this embodiment, the value of W1 is reduced compared with the prior art, so that the wind resistance can be reduced, and the impact of the air flow on the support arm 31 can be reduced, thereby reducing the noise of the air flow.

In some embodiments, w1=20 to 35mm.

In some embodiments, the motor mount further comprises: and the reinforcing cross beam is connected between the two arm bodies.

In some embodiments, the motor support plate includes: a body portion; the round platform part protrudes from the body part to a direction away from the outdoor heat exchanger, and a motor of the fan is arranged on the round platform part; the distance H1=3-8 mm between the round table part and the main body part.

In some embodiments, the support arm comprises: the first support arm is connected to the upper side of the motor support plate, the lower part of the first support arm is inclined from top to bottom in a direction away from the outdoor heat exchanger, the second support arm is connected to the lower side of the motor support plate, and the upper part of the second support arm is inclined from bottom to top in a direction away from the outdoor heat exchanger; the distance H1=3-6 mm between the round table part and the main body part.

In some embodiments, the support arm extends in a straight line in the vertical direction; the distance H1=4-8 mm between the round table part and the main body part.

In some embodiments, the body portion is provided with a plurality of through holes.

In some embodiments, the motor mount further comprises: the upper supporting plate is connected to the top end of the supporting arm, and is provided with an upward protruding reinforcing boss; the reinforcing boss includes: a center part positioned in the middle of the upper support plate; the plurality of extending portions extend radially with respect to the center portion.

In some embodiments, the motor mount further comprises: lower backup pad connects in the bottom of support arm, and lower backup pad includes: the positioning part is propped against the bottom plate of the shell and is positioned in the middle of the lower supporting plate; the boss parts are positioned on two sides of the positioning part and protrude towards the direction away from the bottom plate relative to the positioning part.

In another aspect of the present application, an outdoor unit of an air conditioner includes: a housing; an outdoor heat exchanger arranged in the shell; the fan is arranged at the air outlet side of the outdoor heat exchanger and is used for driving air to flow; the motor support for install the fan, the motor support has the support arm, and the support arm is including two arm bodies that horizontal interval set up, and the width of single arm body is noted as W1, and the total width of motor support is noted as W2, and W1 and W2's relation satisfies: w1/w2=1/8 to 1/5.

In this embodiment, the value of W1 is reduced compared with the prior art, so that the wind resistance can be reduced, and the impact of the air flow on the support arm 31 can be reduced, thereby reducing the noise of the air flow.

Drawings

Fig. 1 illustrates a perspective view of an air conditioner outdoor unit according to some embodiments;

Fig. 2 illustrates a cross-sectional view of an air conditioner outdoor unit according to some embodiments;

Fig. 3 illustrates a cross-sectional view of a portion of an air conditioner outdoor unit according to some embodiments;

Fig. 4 illustrates a perspective view of a motor bracket of an air conditioner outdoor unit according to some embodiments;

FIG. 5 shows a partial view of the motor support plate of FIG. 4;

fig. 6 illustrates a side view of a motor bracket of an air conditioner outdoor unit according to some embodiments;

fig. 7 illustrates a front view of a motor bracket of an air conditioner outdoor unit according to some embodiments;

Fig. 8 is a perspective view illustrating a motor bracket of an outdoor unit of an air conditioner according to other embodiments;

Fig. 9 illustrates a side sectional view of a motor bracket of an air conditioner outdoor unit at a motor support plate according to other embodiments;

fig. 10 illustrates a front view of a motor bracket of an outdoor unit of an air conditioner according to other embodiments;

In the above figures, 10, a housing; 11. a top plate; 12. a bottom plate; 13. a side plate; 131. an air outlet panel; 14. an air inlet; 15. an air outlet; 20. an outdoor heat exchanger; 30. a motor bracket; 30a, a motor positioning surface; 31. a support arm; 311. a first support arm; 3111. a first sub-support arm; 3112. a second sub-support arm; 312. a second support arm; 3121. a third sub-support arm; 3122. a fourth sub-support arm; 313. a ventilation zone; 314. an arm body; 32. a motor support plate; 321. a body portion; 3211. a through hole; 322. a round table part; 3221. a mounting hole; 3222. a notch; 33. a reinforcing beam; 331. a through hole; 34. flanging; 35. an upper support plate; 351. reinforcing the boss; 3511. a center portion; 3512. an extension; 36. a lower support plate; 361. a positioning part; 362. a boss portion; 3621. a first boss portion; 3622. a second boss portion; 37. folding edges; 38. a boss; 40. a blower; 41. a motor; 42. a fan.

Detailed Description

For the purposes of making the objects and embodiments of the present application more apparent, an exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present application are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present application.

In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" or the like may include one or more such features, either explicitly or implicitly. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The air conditioner performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses refrigerant gas in a low-temperature and low-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. Throughout the cycle, the air conditioner may adjust the temperature of the indoor space.

An outdoor unit of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.

Referring to fig. 1 and 2, an air conditioner outdoor unit according to an embodiment of the present application includes a housing 10, an outdoor heat exchanger 20, a motor bracket 30, and a blower fan 40.

The casing 10 forms the overall appearance of the air conditioner outdoor unit. The housing 10 includes a top plate 11, a bottom plate 12, and a side plate 13 connected between the top plate 11 and the bottom plate 12.

The side plate 13 of the shell 10 is provided with an air inlet 14 and an air outlet 15. Outdoor air enters the housing 10 from the air inlet 14 and is blown out of the housing 10 from the air outlet 15. Wherein, define the one side that the air outlet 15 is located as the front, be equipped with air-out panel 131 on the front side board, be equipped with air outlet 15 on the air-out panel 131. Typically, the air outlet panel 131 is an air outlet louver.

The outdoor heat exchanger 20 is disposed in the housing 10 corresponding to the air intake 14, for absorbing heat from or transferring heat to the air introduced into the air intake 14. The side of the outdoor heat exchanger 20 facing the air inlet 14 is an air inlet surface, and the side of the outdoor heat exchanger 20 facing the air outlet 15 is an air outlet surface.

The motor bracket 30 is connected in the housing 10 between the outdoor heat exchanger 20 and the air outlet 15, and the motor bracket 30 is disposed near the outdoor heat exchanger 20 for supporting and fixing the blower fan 40.

The blower fan 40 is positioned at one side of the motor bracket 30 away from the outdoor heat exchanger 30; the blower 40 includes a motor 41 and a fan 42, and the fan 42 is connected to the motor 41. The rotor of the motor 41 rotates the fan 42, thereby driving air to flow from the air inlet 14 to the air outlet 15. Is connected to the motor bracket 30 by a motor 41 to effect connection of the blower 40 within the housing 10.

During operation of the fan 42, the air flow will generate vortex when passing through the motor support 30, so as to increase noise, and in addition, the rotation of the motor 41 is transmitted to the motor support 30 to radiate low-frequency noise due to vibration, so that the use experience of a user can be affected if the noise is too large.

In the present application, for the purpose of description, referring to fig. 3, the side of the motor bracket 30 where the motor 41 is positioned is referred to as a motor positioning surface 30a, the distance from the motor positioning surface 30a to the front surface (i.e., the air outlet surface) of the outdoor heat exchanger 20 is denoted as L1, the distance from the front surface (i.e., the air outlet surface) of the outdoor heat exchanger 20 to the inner side wall of the air outlet panel 131 is denoted as L2, and the relationship between L1 and L2 satisfies: l1/l2=1/5 to 5/12.

The outdoor heat exchanger related to the descriptions of L1 and L2 in the present application refers to a portion of the outdoor heat exchanger opposite to the rear side plate, excluding portions opposite to the left and right side plates.

In addition, the length of L2 represents the installation space of the motor bracket 30 and the blower 40 in the front-rear direction, so that when the inner sidewall of the air outlet panel 131 is not planar, the front end of L2 points to the nearest point of the inner sidewall of the air outlet panel 131 to the blower 40.

Noise of the air conditioner outdoor unit is reduced within the range of the value. This is because the range of values L1 is greater than in the prior art, and the increased distance of the fan 42 from the outdoor heat exchanger 20 reduces the air flow disturbance and thus noise.

If the value of L1/L2 is relatively large, although the distance from the blower 40 to the outdoor heat exchanger 20 can be long enough, the blower 40 is likely to be relatively close to the air outlet panel 131, so that the size of the casing 10 in the front-rear direction needs to be increased to avoid interference between the blower 40 and the air outlet panel 131, and the outdoor unit is likely to be greatly changed; if the value of L1/L2 is small, the fan 40 is relatively close to the outdoor heat exchanger 30, and the noise reduction effect is not achieved. Therefore, by setting L1/l2=1/5 to 5/12, the air supply noise can be reduced on the basis of ensuring that the volume of the air conditioner outdoor unit is unchanged.

In some embodiments, l1/l2=1/5 to 3/10, in which the air supply noise of the outdoor unit is reduced, and enough redundant space is reserved between the fan 40 and the air outlet panel 131 to avoid the risk of collision when the fan 40 is too close to the air outlet panel 131.

In some embodiments, l1/l2=3/10 to 5/12, the noise reduction effect is better than l1/l2=1/5 to 3/10 in the range, but the redundant space reserved between the fan 40 and the air outlet panel 131 is smaller.

As a preferred embodiment, l1/l2=3/10, on the one hand, the air supply noise of the fan can be reduced, and on the other hand, enough redundant space can be reserved for the non-interference installation of the fan 42 in the housing 10, so that the fan 42 is prevented from touching other parts due to vibration, deformation and other reasons, and the device has the advantages of high reliability and low noise.

In some embodiments of the present application, referring to fig. 4 and 8, the motor bracket 30 includes a support arm 31 and a motor support plate 32. The support arm 31 extends substantially vertically, and the motor support plate 32 is connected to the middle of the support arm 31.

The support arm 31 includes a first support arm 311 and a second support arm 312, where the first support arm 311 and the second support arm 312 are disposed symmetrically up and down with respect to the motor support plate 32, the first support arm 311 is located at an upper end of the motor support plate 32, and the second support arm 312 is located at a lower end of the motor support plate 32.

The motor support plate 32 includes a body portion 321 and a circular truncated cone portion 322. The body portion 321 is connected between the first support arm 311 and the second support arm 312, the round platform portion 322 is connected at the middle part of the body portion 321, and the round platform portion 322 protrudes towards the direction approaching the fan 40 relative to the body portion 322.

The circular truncated cone portion 322 is provided with a plurality of mounting holes 3221, and the motor 41 is mounted on the circular truncated cone portion 322 through the mounting holes 3221 penetrating through screws, and the front surface of the circular truncated cone portion 322 is the motor positioning surface 30a.

If the distance from the outdoor heat exchanger 20 to the blower 40 is increased by integrally moving the supporting arm 31 and the motor supporting plate 32 of the motor bracket 30 to the front side, it is necessary to change the connection position of the motor bracket 30 and the housing 10, and the modification is relatively large, resulting in an increase in cost.

In the present application, referring to fig. 5 and 9, the height h1=3 to 8mm of the protrusion of the truncated cone portion 322 with respect to the body portion 322 is set. Stated another way, in the axial direction of the fan 40, the distance h1=3 to 8mm from the truncated cone portion 322 to the body portion 322.

The present application increases the distance L1 from the motor positioning surface 30a to the front surface of the outdoor heat exchanger 20 by increasing the protrusion height H1 of the boss 322. That is, only the protruding height H1 of the truncated cone 322 is changed, other structures are not changed, the cost is not increased, and the manufacturing process is simpler.

Therefore, the distance h1=3-8 mm from the circular truncated cone portion 322 to the main body portion 322 is set in the present application, so that the fan 40 is as far as possible from the outdoor heat exchanger 20 under the precondition that the size of the outdoor unit is unchanged, thereby reducing air flow interference and noise.

Since the motor support plate 32 is only improved, other structures are not changed, and the motor support 30 of the application can be applied to the existing air conditioner outdoor unit, and has the advantages of low cost and air supply noise reduction.

In some embodiments of the present application, referring to fig. 4 and 5, portions of the first support arm 311 and the second support arm 312 that are adjacent to each other are inclined in a direction approaching the blower 40, i.e., a lower portion of the first support arm 311 is inclined with respect to an upper portion thereof in a direction approaching the blower 40, and an upper portion of the second support arm 312 is inclined with respect to a lower portion thereof in a direction approaching the blower 40.

The first support arm 311 includes a first sub-support arm 3111 and a second sub-support arm 3112, the first sub-support arm 3111 extending vertically, the second sub-support arm 3112 being connected to a lower end of the first sub-support arm 3111. The second sub-support arm 3112 is inclined from top to bottom in a direction approaching the blower 40.

The second support arm 312 includes a third sub-support arm 3121 and a fourth sub-support arm 3122, the third sub-support arm 3121 extending vertically, the fourth sub-support arm 3122 being connected to an upper end of the third sub-support arm 3121. The fourth sub-support arm 3122 is inclined from bottom to top in a direction approaching the blower 40.

The body 321 is connected between the second sub-support arm 3112 and the fourth sub-support arm 3122, and the boss 322 protrudes to a height h1=3 to 6mm from the body 322.

The boss portion 322 protrudes toward the direction close to the fan 40 relative to the body portion 322, so that the distance from the boss portion 322 to the outdoor heat exchanger 20 is increased, and the distance from the fan 40 to the outdoor heat exchanger 20 is increased due to the fact that the motor 41 is arranged on the boss portion 322, so that air flow interference between the outdoor heat exchanger 20 and the fan 40 is reduced, and air flow noise generated when the fan 42 operates is reduced.

According to an embodiment of the present application, referring to fig. 6, the distance h2=4 to 8mm, for example h2=5 mm, between the motor support plate 32 and the first sub-support arm 3112 in the axial direction of the blower fan 40 may make the motor support plate 32 away from the outdoor heat exchanger 20 on the one hand and reserve a sufficient installation space for the blower fan 40 on the other hand. On the premise of not influencing the normal installation of the product, the air flow interference is reduced as much as possible, and the noise is reduced.

In another embodiment of the present application, unlike the structure of the motor support 30 described above, referring to fig. 8 and 9, the support arm 31 does not have the second sub-support arm 3112 and the fourth sub-support arm 3122 provided obliquely; in the motor bracket 30 of this embodiment, the support arm 31 extends in the vertical direction.

In the axial direction of the fan 40, the distance h1=4 to 8mm from the truncated cone portion 322 to the main body portion 321. The distance from the blower 40 to the outdoor heat exchanger 20 becomes large, thereby reducing air flow interference and noise.

As a preferred embodiment, h1=6mm, under this value condition, on the one hand, a redundant space for avoiding interference is left between the fan 42 and the air outlet panel 131 without changing the size of the casing 10, and on the other hand, the fan 40 is located as far as possible from the outdoor heat exchanger 20, so that a better noise reduction effect is achieved.

The present application also makes noise reduction design from the width direction of the support arm 31: referring to fig. 7 and 10, the support arm 31 includes two arms 314 arranged at a lateral interval, the width of the single arm 314 is denoted as W1, the total width of the motor bracket 30 is denoted as W2, and the relationship of W1 and W2 satisfies: w1/w2=1/8 to 1/5.

In this ratio range, the supply noise of the outdoor unit of the air conditioner is reduced, because the value of W1 is reduced in this ratio range as compared with the prior art, so that the wind resistance can be reduced, the impact of the air flow on the support arm 31 can be reduced, and the air flow noise can be reduced. However, this ratio is not so low in noise that if W1 is too small, the supporting strength of the supporting arm 31 is lowered, and although the wind resistance is reduced, the vibration transmitted from the motor 41 to the supporting arm 31 is increased, so that the vibration noise is increased. Therefore, the application sets W1/W2=1/8-1/5, and reduces the air supply noise of the air conditioner outdoor unit on the premise of ensuring the supporting strength of the motor bracket 30.

According to the embodiment of the present application, the width w1=20 to 35mm of the support arm 31, which is in a range where the width of the support arm 31 is reduced as compared with the prior art, the overall noise is reduced although the strength of the support arm 31 is reduced.

In some embodiments, referring to fig. 4 and 8, the space between the two arms 314 is a ventilation zone 313, and the reinforcement beam 33 is located within the ventilation zone 313 and is connected to the two arms 314.

The reinforcing beam 33 can improve the structural strength of the motor bracket 30, thereby reducing the vibration noise of the motor bracket 30.

The reinforcing cross member 33 may be provided with a through hole 331 so that the reinforcing cross member 33 reduces blocking of the air flow while reinforcing the structural strength of the motor bracket 30.

The edges of the support arm 31, the reinforcing beam 33 and the motor support plate 32 are provided with a flange 34, and the flange 34 extends in a direction approaching the fan 40, so that the flange direction is the same as the air flow direction.

Due to the blocking effect of the motor bracket 30, the air flow can generate vortex after passing through the motor bracket 30, the vortex continuously flows and impacts the blade surface of the fan 42, so that the interaction between the fan 42 and the air flow can be increased, and further the noise is increased.

In some embodiments, the circular truncated cone 322 is provided with a plurality of notches 3222 at intervals in the circumferential direction, and the contact area between the motor 41 and the circular truncated cone 322 can be reduced by the notches 3222, so that vibration of the motor is reduced and transmitted to the circular truncated cone 322, thereby reducing vibration noise.

In some embodiments, referring specifically to fig. 4, a plurality of through holes 3211 are formed in the body 321, and the through holes 3211 may increase the ventilation area and reduce the ventilation resistance.

Specifically, each of the four corners of the body 321 is provided with a through hole 3211, and the through holes 3211 are kidney-shaped, so that the area of the through holes 3211 is increased as much as possible while ensuring the strength of the body 321.

According to an embodiment of the present application, the motor bracket 30 further includes an upper support plate 35 and a lower support plate 36. An upper support plate 35 is coupled to an upper end of the support arm 31, and a lower support plate 36 is coupled to a lower end of the support arm 31.

The upper support plate 35 extends from the upper end of the support arm 31 in a direction away from the outdoor heat exchanger 20. The end of the upper support plate 35 connected to the support arm 31 is defined as a rear end, the end of the upper support plate 35 remote from the support arm 31 is defined as a front end, and the front end of the upper support plate 35 is connected to the front side plate of the housing 10.

Referring to fig. 8, the upper support plate 35 may be provided with a reinforcing boss 351 protruding upward, and the reinforcing boss 351 may be provided to reinforce the strength of the upper support plate 35, reducing vibration of the upper support plate 35.

The reinforcing boss 351 protrudes upward from the upper support plate 35 by a height h3=2 to 5mm. As a preferred embodiment, h3=3.5 mm, under this value condition, the reinforcing boss 351 is made as high as possible without changing the original fit of the upper support plate 35 with the housing 10, thereby achieving a good structural reinforcing effect.

In this embodiment, only the reinforcing boss 351 is added to the upper support plate 35, so that the overall structure of the upper support plate 35 is not changed, and the structure is simple and the cost is low.

According to an embodiment of the present application, the reinforcing boss 351 includes a central portion 3511 and an extension portion 3512, the central portion 3511 being located at a middle portion of the upper support plate 35; the extending portion 3512 has a plurality of portions and extends radially outwardly relative to the central portion 3511.

Specifically, the extending portions 3512 have four, two of which extend from the center portion 3511 to the left side of the upper support plate 35, and the other two extending portions 3512 extend from the center portion 3511 to the right side of the upper support plate 35.

The rear end of the upper support plate 35 is connected with a folded edge 37 extending backward, and the folded edge 37 is clamped at the upper end of the outdoor heat exchanger 20, so that the connection stability of the motor bracket 30 can be enhanced.

The lower support plate 36 extends from the lower end of the support arm 31 in a direction away from the outdoor heat exchanger 20. The lower support plate 36 is connected to the bottom plate 12 of the housing 10.

In some embodiments of the lower support plate 36, referring to fig. 4, a boss 38 is provided at an inner corner formed by the connection of the lower support plate 36 and the support arm 31, and the boss 38 protrudes outward with respect to the lower support plate 36 and the support arm 31.

Because the lower support plate 36 is bent by 90 degrees relative to the support arm 31, the bending position is easy to break due to bending fatigue, and the boss 38 is arranged at the inner corner formed by connecting the lower support plate 36 and the support arm 31, so that the structural strength of the bending position can be improved.

In another embodiment of the lower support plate 36, referring to fig. 8, the lower support plate 36 includes a positioning portion 361 and a boss portion 362. The positioning portion 361 abuts against the bottom plate 12 of the housing 10, and the boss portions 362 are located on both sides of the positioning portion 361.

Specifically, the boss portion 362 includes a first boss portion 3621 and a second boss portion 3622, the first boss portion 3621 being located on the front side of the positioning portion 361, and the second boss portion 3622 being located on the rear side of the positioning portion 361.

The positioning portion 361 is screwed to the bottom plate 12 of the housing 10. Since the positioning portion 361 is located in the middle of the lower support plate 36, the connection firmness of the lower support plate 36 and the bottom plate 12 can be ensured, and the supporting effect of the lower support plate 36 on the motor bracket 30 can be ensured.

The boss portion 362 may enhance the strength of the lower support plate 36, and effectively prevent the motor bracket 30 from shaking during the operation of the blower 40.

Wherein the boss portion 362 is higher than the positioning portion 361 by a distance h4=7 to 12mm. As a preferred embodiment, h4=9mm, and under this condition, both advantages of convenient manufacture and strength of the reinforced structure are achieved.

In the present application, by providing the relationship L1/l2=1/5 to 5/12 of the distance L1 of the motor positioning surface 30a to the front surface of the outdoor heat exchanger 20 and the distance L2 of the front surface of the outdoor heat exchanger 20 to the inner side wall of the air outlet 14, the increase in the distance of the fan 42 to the outdoor heat exchanger 20 is made to reduce the air flow disturbance and thus the noise, compared to the prior art, by increasing the size of L1.

In the present application, the protruding height h1=3 to 8mm of the truncated cone portion 322 relative to the main body portion 322 increases the distance L1 from the motor positioning surface 30a to the front surface of the outdoor heat exchanger 20 by increasing the protruding height H1 of the truncated cone portion 322. That is, only the protruding height H1 of the truncated cone 322 is changed, other structures are not changed, the cost is not increased, and the manufacturing process is simpler.

In the present application, the relationship between the width W1 of the single arm and the total width W2 of the motor bracket 30 satisfies: the value of W1/w2=1/8 to 1/5 is reduced compared with the prior art, so that the wind resistance can be reduced, the impact of the air flow on the supporting arm 31 can be reduced, and the air flow noise can be reduced.

In the present application, the body 321 is provided with a plurality of through holes 3211, and the through holes 3211 can increase the ventilation area and reduce the ventilation resistance.

In the application, the boss 38 is arranged at the inner corner formed by connecting the lower support plate 36 and the support arm 31, so that the structural strength of the lower support plate 36 and the support arm 31 at the bending position can be improved, and the vibration of the motor bracket 30 can be reduced.

In the application, the positioning part 361 connected with the bottom plate 12 and the boss parts 362 positioned at two sides of the positioning part 361 are arranged on the lower support plate 36, so that the strength of the lower support plate 36 can be improved, and the shaking of the motor bracket 30 caused in the running process of the fan 40 can be effectively prevented.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. An outdoor unit of an air conditioner, comprising:

A housing;

An outdoor heat exchanger disposed within the housing;

the fan is arranged at the air outlet side of the outdoor heat exchanger and is used for driving air to flow;

the motor bracket is provided with a supporting arm and a motor supporting plate, the motor supporting plate is connected with the fan, and the supporting arm is positioned at two vertical sides of the motor supporting plate;

The support arm comprises two arm bodies which are transversely arranged at intervals, the width of each arm body is recorded as W1, the total width of the motor support is recorded as W2, and the relation between W1 and W2 satisfies: w1/w2=1/8 to 1/5.

2. An outdoor unit of claim 1, wherein w1=20 to 35mm.

3. The outdoor unit of claim 1, wherein the motor bracket further comprises:

And the reinforcing cross beam is connected between the two arm bodies.

4. The outdoor unit of claim 1, wherein the motor support plate comprises:

A body portion;

A round platform part protruding from the body part towards a direction away from the outdoor heat exchanger, wherein a motor of the fan is arranged on the round platform part; the distance H1=3-8 mm between the round table part and the main body part.

5. The outdoor unit of claim 4, wherein the supporting arm comprises:

A first support arm connected to the upper side of the motor support plate, the lower part of the first support arm being inclined from top to bottom in a direction away from the outdoor heat exchanger,

The second supporting arm is connected to the lower side of the motor supporting plate, and the upper part of the second supporting arm is inclined from bottom to top in a direction away from the outdoor heat exchanger;

The distance H1=3-6 mm between the round table part and the main body part.

6. The outdoor unit of claim 4, wherein the support arms extend in a straight line in a vertical direction; the distance H1=4-8 mm between the round table part and the main body part.

7. The outdoor unit of claim 4, wherein the body portion is provided with a plurality of through holes.

8. The outdoor unit of claim 1, wherein the motor bracket further comprises:

The upper supporting plate is connected to the top end of the supporting arm, and is provided with an upward protruding reinforcing boss;

The reinforcing boss includes:

a center part positioned in the middle of the upper support plate;

the plurality of extending portions extend radially with respect to the center portion.

9. The outdoor unit of claim 1, wherein the motor bracket further comprises:

Lower backup pad is connected the bottom of support arm, lower backup pad includes:

The positioning part is propped against the bottom plate of the shell and is positioned in the middle of the lower supporting plate;

The boss parts are positioned on two sides of the positioning part and protrude towards the direction away from the bottom plate relative to the positioning part.

10. An outdoor unit of an air conditioner, comprising:

A housing;

An outdoor heat exchanger disposed within the housing;

the fan is arranged at the air outlet side of the outdoor heat exchanger and is used for driving air to flow;

The motor support is used for installing the fan, the motor support has the support arm, the support arm is including two arm bodies that horizontal interval set up, singly the width of the arm body is noted as W1, the total width of motor support is noted as W2, and W1 and W2's relation satisfies: w1/w2=1/8 to 1/5.