Front panel assembly, air conditioner outdoor unit and air conditioner

Abstract

The utility model discloses a front panel assembly, an air conditioner outdoor unit and an air conditioner, and relates to the technical field of air conditioners, the front panel assembly comprises a front panel, a motor frame and an air outlet mesh enclosure, and the front panel is provided with an air outlet; the motor frame comprises a fixed seat and an adapting support leg, the adapting support leg is connected between the fixed seat and the edge of the air outlet, the adapting support leg is arranged in an arc shape in the radial direction of the air outlet, and the fixed seat is used for mounting a driving motor of the fan; the air outlet net cover covers the air outlet, the air outlet net cover comprises a plurality of grid strips which are arranged at intervals in the circumferential direction, the grid strips are arranged in an arc shape in the radial direction of the air outlet, and the bending degree of the adapter supporting feet is generally consistent with that of the grid strips. According to the technical scheme provided by the utility model, the noise can be reduced while the airflow wind resistance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field especially relates to a front panel assembly, air conditioner outdoor unit and air conditioner. BACKGROUND

[0002] Air conditioner outdoor unit installs the fan in order to accelerate heat exchange process, and the fan includes motor and wind wheel, currently, through adding motor support in the outdoor unit, the installation of the fan in the outdoor unit is guaranteed, but the problem brought by the addition of motor frame is also inevitable, because the form of motor support does not conform to the air flow mechanics, not only increases the airflow resistance, but also the noise is high. SUMMARY

[0003] The utility model discloses a front panel assembly, air conditioner outdoor unit and air conditioner, which aims at reducing airflow resistance and noise.

[0004] To achieve the above object, the utility model provides a front panel assembly, which comprises:

[0005] A front panel is provided with an air outlet.

[0006] A motor frame comprises a fixing base and an adapter leg, the adapter leg is connected between the fixing base and the edge of the air outlet, and the adapter leg is arranged in an arc shape in the radial direction of the air outlet, and the fixing base is used for mounting the driving motor of the fan.

[0007] An air outlet mesh cover is arranged on the air outlet, and the air outlet mesh cover comprises a plurality of grid bars arranged at intervals in the circumferential direction, the grid bars are arranged in an arc shape in the radial direction of the air outlet, and the bending degree of the adapter leg is substantially consistent with the bending degree of the grid bars.

[0008] In an embodiment, the bending degree of the adapter leg is equal to the bending degree of the grid bars.

[0009] In an embodiment, the adapter leg and the fixing base are connected at a first connection point, and the adapter leg and the edge of the air outlet are connected at a second connection point, a first connection line passes through the first connection point and the center point of the air outlet, a second connection line passes through the second connection point and the center point of the air outlet, and the included angle θ between the first connection line and the second connection line ranges from 0° to 60°.

[0010] In an embodiment, the radius of the air outlet is R, the width of the adapter leg is W, and 0.03≤W / R≤0.06; and / or

[0011] The thickness of the adapter leg is H, the radius of the air outlet is R, and 0.04≤H / R≤0.07.

[0012] In an embodiment, the front panel and the motor frame are integrally formed by stamping.

[0013] In an embodiment, the width of the connection position of the adapter leg and the front panel is gradually increased in a direction away from the fixing base; and / or

[0014] The width of the connection position of the adapter leg and the fixing base is gradually increased in a direction close to the fixing base.

[0015] In an embodiment, the motor frame is provided with a reinforcing groove on a side facing the fan, and the reinforcing groove is formed in at least one of the fixing base and the adapter leg.

[0016] In an embodiment, the reinforcing groove provided on the fixing base is configured as a ring groove, and the reinforcing groove provided on the adapter leg is configured as a strip-shaped groove.

[0017] The utility model also proposes an air conditioner outdoor unit, including the front panel subassembly of above.

[0018] The utility model also proposes an air conditioner, including the air conditioner outdoor unit of above.

[0019] The technical scheme of the utility model discloses that the adapter leg is arranged in the radial direction of the air outlet in an arc shape, so that the adapter leg in an arc shape can more effectively guide air flow and reduce wind resistance, that is, the effect of a stationary vane is presented, and the adapter leg in an arc shape is matched with the fan wheel, so that static pressure recovery can be better, so that when air flow diffuses out of the air conditioner outdoor unit, the air flow speed is reduced, and the air flow speed does not increase too much, which is beneficial to reducing flow loss and improving flow efficiency. Compared with a linear adapter leg, the adapter leg in an arc shape can produce a smoother transition when air passes through, so as to reduce energy loss in the flow process. Moreover, the adapter leg in an arc shape can reduce turbulence and vortex generated in the air flow process, so as to reduce noise. Therefore, the technical scheme of the application can reduce air flow wind resistance and reduce noise. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creative labor.

[0021] Figure 1 A structure schematic view of an embodiment of the front panel assembly provided by the utility model;

[0022] Figure 2 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a first perspective; Figure 1 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective;

[0023] Figure 3 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective; Figure 1 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective;

[0024] Figure 4 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective; Figure 3 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective;

[0025] Figure 5 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective;

[0026] Figure 6 A structure schematic view of the motor frame and the front panel of the front panel assembly provided by the utility model from a second perspective;

[0027] Explanation of the attached drawings:

[0028] 10, front panel assembly; 100, motor frame; 110, fixed seat; 120, adapter leg; 130, reinforcing groove; 200, front panel; 210, air outlet; 300, air outlet cover; 310, grid bar.

[0029] The implementation, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0033] A fan is installed in the air conditioner outdoor unit to speed up the heat exchange process, the fan includes a motor and a fan wheel, at present, a motor support is added in the outdoor unit to ensure the installation of the fan in the outdoor unit, but the problem caused by the addition of the motor support is also inevitable, because the form of the motor support does not conform to the air flow mechanics, not only increases the air flow resistance, but also emits high noise.

[0034] In order to solve this problem, the utility model provides a front panel assembly 10.

[0035] Please refer to Figures 1 to 3 In an embodiment of the present application, the front panel assembly 10 includes a front panel 200, a motor support 100 and an air outlet mesh cover 300, the front panel 200 is provided with an air outlet 210, the motor support 100 includes a fixing seat 110 and an adapter leg 120, the adapter leg 120 is connected between the fixing seat 110 and the edge of the air outlet 210, and the adapter leg 120 is arranged in an arc shape in the radial direction of the air outlet 210, the fixing seat 110 is used for installing the driving motor of the fan, the air outlet mesh cover 300 is covered on the air outlet 210, the air outlet mesh cover 300 includes a plurality of grid bars 310 arranged in a circumferential direction, the grid bars 310 are arranged in an arc shape in the radial direction of the air outlet 210, and the bending degree of the adapter leg 120 is substantially consistent with the bending degree of the grid bars 310.

[0036] The technical scheme of the utility model discloses the arc setting of the adapter leg 120 in the radial direction of the air outlet 210, so that the arc adapter leg 120 can more effectively guide the air flow and reduce the wind resistance, that is, the effect of static vane flow guide is presented, the arc adapter leg 120 is matched with the fan wheel, so that the static pressure recovery can be better, so that the air flow out of the air conditioner outdoor unit can be diffused, and the flow rate is reduced, so that the resistance is not increased too much, which is beneficial to reduce the flow loss and improve the flow efficiency. Compared with the linear adapter leg 120, the arc adapter leg 120 can produce a smoother transition when the air passes through, thereby reducing the energy loss in the flow process. Moreover, the arc adapter leg 120 design can reduce the turbulence and vortex generated in the air flow process, thereby reducing the noise generation.

[0037] Secondly, the setting of the air outlet mesh cover 300 can play a safety protection role, and the grid bar 310 is arc-shaped in the radial direction of the air outlet 210, so that the arc-shaped grid bar 310 can more effectively guide the air flow and reduce the wind resistance, that is, the effect of static vane flow guide is presented, the arc-shaped grid bar 310 is matched with the fan wheel, so that the static pressure recovery can be better, so that the air flow out of the air conditioner outdoor unit can be diffused, and the flow rate is reduced, so that the resistance is not increased too much, which is beneficial to reduce the flow loss and improve the flow efficiency. Compared with the linear grid bar 310, the arc-shaped grid bar 310 can produce a smoother transition when the air passes through, thereby reducing the energy loss in the flow process. Moreover, the arc-shaped grid bar 310 design can further reduce the turbulence and vortex generated in the air flow process, thereby further reducing the noise generation.

[0038] More importantly, the adapter leg 120 and the grid bar 310 are arc-shaped in the radial direction of the air outlet 210, and the bending degree of the adapter leg 120 is basically consistent with the bending degree of the grid bar 310, so that the air flow resistance at the adapter leg 120 is reduced, and the air flow resistance at the grid bar 310 is also reduced, thereby the static pressure recovery can be further better, so that the air flow resistance is further reduced, and the noise is further reduced.

[0039] It should be noted that the motor bracket 100 of the present scheme is connected between the fixed seat 110 and the edge of the air outlet 210, and the fixed seat 110 is used to install the driving motor of the fan, so that the motor bracket 100 of the present scheme is located between the fan and the front panel 200, and the fan is located between the heat exchanger and the motor bracket 100. Compared with the scheme in the prior art that the motor bracket 100 is installed on the heat exchanger, the present scheme can improve the resistance around the heat exchanger, so that the flow loss between the fan and the heat exchanger is reduced, thereby improving the overall heat exchange effect. The bending degree of the adapter leg 120 is substantially consistent with the bending degree of the grid bar 310, which means that the bending degree of the adapter leg 120 is equal to or slightly different from the bending degree of the grid bar 310.

[0040] In an embodiment of the present scheme, the bending degree of the adapter leg 120 is equal to the bending degree of the grid bar 310, so that the adapter leg 120 and the grid bar 310 can be better integrated, and the existence of the adapter leg 120 of the added motor bracket 100 cannot be seen from the front side of the air conditioner outdoor unit, which is conducive to hiding the adapter leg 120 and improving the appearance of the air conditioner outdoor unit. Secondly, since the bending degree of the adapter leg 120 is equal to the bending degree of the grid bar 310, the adapter leg 120 and the grid bar 310 can better cooperate and further recover static pressure, thereby reducing the resistance and noise of the airflow. Furthermore, compared with the conventional motor support (for example, the adapter leg is in a straight line type in the radial direction of the air outlet 210), the adapter leg 120 of the present scheme has smaller shielding of the air outlet of the grid, that is, the adapter leg 120 has smaller hindering of the air outlet area of the air outlet of the grid bar 310. In comparison, the motor bracket 100 designed in the present scheme increases the total air outlet area of the air outlet of the air outlet net cover 300 by 2.2%, thereby further reducing the air resistance of the airflow. Of course, the present scheme is not limited to this, and in other embodiments, the bending degree of the adapter leg 120 can also be slightly deviated from the bending degree of the grid bar 310.

[0041] It should be noted that the bending degree of the adapter leg 120 is equal to the bending degree of the grid bar 310, that is, the curvature of the adapter leg 120 is equal to the curvature of the grid bar 310.

[0042] Referring to Figure 2Optionally, in the embodiment of the first aspect, the adapter leg 120 is connected to the fixed seat 110 at a first connection point, and the adapter leg 120 is connected to the edge of the air outlet 210 at a second connection point, a first connection line passes through the first connection point and the center point of the air outlet 210, a second connection line passes through the second connection point and the center point of the air outlet 210, and the included angle θ between the first connection line and the second connection line ranges from 0° to 60°, so that a good flow guiding effect can be achieved, thereby reducing the air resistance of the airflow.

[0043] Further, the specific value of the included angle θ between the first connection line and the second connection line can depend on the bending degree of the grid strip 310.

[0044] Optionally, in the embodiment of the first aspect, the radius of the air outlet 210 is R, and the width of the adapter leg 120 is W, and 0.03≤W / R≤0.06; specifically, if the ratio of W and R is less than 0.03, the adapter leg 120 cannot meet the strength requirement, and if the ratio of W and R is greater than 0.06, the air outlet of the air outlet mesh cover 300 will be excessively shielded, which will result in that the total air outlet area of the air outlet of the air outlet mesh cover 300 is too small. The present application limits the ratio of W and R to be between 0.03 and 0.06, which is beneficial to meet the strength of the adapter leg 120 while increasing the total air outlet area of the air outlet of the air outlet mesh cover 300.

[0045] Optionally, in the embodiment of the first aspect, the thickness of the adapter leg 120 is H, and the radius of the air outlet 210 is R, and 0.04≤H / R≤0.07; specifically, if the ratio of H and R is less than 0.04, the adapter leg 120 cannot meet the strength requirement, and if the ratio of H and R is greater than 0.07, the motor bracket 100 will be closer to the fan wheel of the fan under the size limitation of the total thickness of the air conditioner outdoor unit, which will cause the noise to increase. Therefore, the present application limits the ratio of H and R to be between 0.04 and 0.07, which is beneficial to meet the strength of the adapter leg 120 while making the motor bracket 100 as far away from the fan wheel of the fan as possible, thereby reducing the noise.

[0046] Optionally, the front panel 200 and the motor bracket 100 are integrally formed by stamping, so that the production and processing of the motor bracket 100 can be facilitated, and the processing efficiency and quality can be guaranteed. Since the motor bracket 100 is integrally formed at the air outlet 210 of the front panel 200, the waste generated by stamping the front panel 200 at the air outlet 210 can be reasonably utilized as the stamping material of the motor bracket 100, thereby saving the cost of the motor bracket 100, saving the assembly process between the motor bracket 100 and the front panel 200, reducing the overall weight of the front panel 200 and the motor bracket 100, and facilitating the lightweight design of the outdoor unit. Of course, in other embodiments, the motor bracket 100 can also be integrally formed by casting or injection molding.

[0047] Secondly, the outdoor unit further comprises a guide ring, which is arranged on the wall of the air outlet 210. The front panel 200 and the motor bracket 100 are integrally formed by stamping, that is, the motor bracket 100 and the front panel 200 are formed as a whole. The motor is fixed to the fixing seat 110 of the motor bracket 100, so that the motor bracket 100, the motor and the fan wheel are located on the same axis, thereby reducing the gap between the outer periphery of the fan wheel and the inner surface of the guide ring, and thereby improving the efficiency of the fan and reducing the noise.

[0048] Further, in an embodiment, the width of the connection position of the adapter leg 120 and the front panel 200 is gradually expanded in the direction away from the fixing seat 110; in this way, the strength of the connection position of the adapter leg 120 and the front panel 200 can be increased, and the installation of the fan can be more stable.

[0049] Further, in an embodiment, the width of the connection position of the adapter leg 120 and the fixing seat 110 is gradually expanded in the direction close to the fixing seat 110; in this way, the strength of the connection position of the adapter leg 120 and the fixing seat 110 can be increased, and the installation of the fan can be more stable.

[0050] In an embodiment of the present scheme, the width of the connection position of the adapter leg 120 and the front panel 200 is gradually expanded in the direction away from the fixing seat 110, and the width of the connection position of the adapter leg 120 and the fixing seat 110 is gradually expanded in the direction close to the fixing seat 110.

[0051] Optionally, the motor bracket 100 is provided with a reinforcing groove 130 on the side facing the fan, and the reinforcing groove 130 is formed in at least one of the fixing seat 110 and the adapter leg 120, so as to enhance the structural strength of the motor bracket 100, thereby ensuring the reliable support of the motor bracket 100 to the driving motor and the fan wheel, reducing the weight of the motor bracket 100, and achieving the lightweight design.

[0052] Specifically, in order to ensure the structural strength of the fixed seat 110 and the adapter leg 120, in an embodiment, the fixed seat 110 and the adapter leg 120 are both provided with the reinforcing groove 130, at this time, the reinforcing groove 130 provided on the fixed seat 110 is configured as a ring groove, the driving motor is inserted into the inner ring side of the ring groove and connected to the groove bottom wall of the ring groove; the reinforcing groove 130 provided on the adapter leg 120 is configured as a strip-shaped groove, it can be understood that the ring groove and the inner ring wall of the ring groove constitute a via hole for the driving motor to be inserted and installed, which can increase the effective contact area of the driving motor and the fixed seat 110, improve the connection stability of the driving motor and the fixed seat 110, and the outer periphery of the driving motor is provided with a plurality of mounting feet, when the driving motor is partially inserted into the inner ring side, the mounting feet are arranged on the groove bottom wall of the inner ring groove away from the surface of the air outlet mesh cover 300, and the installation of the driving motor on the fixed seat 110 can be realized by screw locking, buckling and other methods. The strip-shaped groove extends along the extension direction of the adapter leg 120, and can extend partially to the connection between the adapter leg 120 and the front panel 200, and extend to the connection between the adapter leg 120 and the fixed seat 110, further improving the structural strength of the motor bracket 100 and the connection strength between the motor bracket 100 and the front panel 200.

[0053] It should be noted that, through actual measurement comparison, the technical scheme of the present application takes the motor bracket 100 as a single variable, and the scheme in which the adapter leg 120 is arc-shaped in the radial direction of the air outlet 210 improves the air volume by 30m3 / h compared with the scheme in which the adapter leg 120 is straight in the radial direction of the air outlet 210 under the same fan speed of 800 rev / min, verifying that the present scheme can reduce flow resistance; in addition, under the same air volume of 2800m3 / h, the scheme in which the adapter leg 120 is arc-shaped in the radial direction of the air outlet 210 reduces 1.8 power and 0.5dB noise compared with the scheme in which the adapter leg 120 is straight in the radial direction of the air outlet 210, and it can be seen that the arc-shaped adapter leg 120 can reduce power and noise, verifying the improvement of flow separation, with reference to Figure 5 and Figure 6 It can be seen that the arc-shaped adapter leg 120 can reduce power and noise, verifying the improvement of flow separation, with reference to the following Table 1 and Table 2:

[0054] Table 1 Test data of conventional straight-line adapter leg

[0055] RPM / rev / min Air volume / m 3 / h]] Power / W Noise / dB 600 1880 27.3 41.5 700 2240 39.8 45.2 800 2585 58.5 49 858 2799 71.4 50.9

[0056] Table 2 Test data of arc-shaped adapter leg

[0057] RPM / rev / min Air volume / m 3 / h]]> Power / W Noise / dB 600 1900 27 41.3 700 2263 39.2 44.9 800 2615 57.7 48.5 858 2799 69.6 50.4

[0058] The utility model also proposes a kind of air conditioner outdoor unit, the air conditioner outdoor unit includes front panel assembly, the specific structure of this front panel assembly refers to above-mentioned embodiment, since the present air conditioner outdoor unit has adopted all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaborates.

[0059] The utility model also proposes a kind of air conditioner, and the air conditioner includes air conditioner outdoor unit, and the specific structure of the air conditioner outdoor unit refers to above-mentioned embodiment, since the present air conditioner has adopted all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaborates.

[0060] The above-mentioned is only the exemplary implementation of the utility model, and not therefore limit the patent range of the utility model, is in the technical concept of the utility model, utilizes the equivalent structural transformation of the utility model specification and attached drawing contents, or direct / indirectly applies in other relevant technical field all include in the patent protection range of the utility model.

Claims

1. A front panel assembly characterized by, The front panel is provided with an air outlet. The motor bracket comprises a fixing base and an adapter leg, the adapter leg is connected between the fixing base and the edge of the air outlet, and the adapter leg is arranged in an arc shape in the radial direction of the air outlet, and the fixing base is used for mounting a driving motor of a fan. The air outlet mesh cover is arranged on the air outlet, and the air outlet mesh cover comprises a plurality of grid bars arranged in a circumferential direction, the grid bars are arranged in an arc shape in the radial direction of the air outlet, and the bending degree of the adapter leg is substantially consistent with the bending degree of the grid bars. The bending degree of the adapter leg is equal to the bending degree of the grid bars. The adapter leg and the fixing base are connected at a first connection point, the adapter leg and the edge of the air outlet are connected at a second connection point, a first connection line passes through the first connection point and the center point of the air outlet, a second connection line passes through the second connection point and the center point of the air outlet, and the included angle θ between the first connection line and the second connection line ranges from 0° to 60°.

2. The front panel assembly of claim 1, wherein, The radius of the air outlet is R, the width of the adapter leg is W, and 0.03≤W / R≤0.06; and / or 3. The front panel assembly of claim 1, wherein, The thickness of the adapter leg is H, the radius of the air outlet is R, and 0.04≤H / R≤0.

07.

4. The front panel assembly of claim 1, wherein, The front panel and the motor bracket are integrally stamped and formed. The width of the connection position of the adapter leg and the front panel is gradually increased in the direction away from the fixing base; and / or 5. The front panel assembly of claim 1, wherein, The width of the connection position of the adapter leg and the fixing base is gradually increased in the direction close to the fixing base.

6. The front panel assembly of claim 1, wherein, The motor bracket is provided with a reinforcing groove on the side facing the fan, and the reinforcing groove is formed in at least one of the fixing base and the adapter leg. The reinforcing groove arranged on the fixing base is configured as a ring groove, and the reinforcing groove arranged on the adapter leg is configured as a strip-shaped groove.

7. The front panel assembly of claim 1, wherein, The front panel assembly comprises the front panel assembly according to any one of claims 1 to 8.

8. The front panel assembly of claim 7, wherein, The outdoor unit of the air conditioner comprises the outdoor unit of the air conditioner according to claim 9.

9. An air conditioner outdoor unit characterized by comprising: ​ 10. An air conditioner characterized by comprising: ​

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