Air conditioner internal unit, chassis of air conditioner internal unit and air conditioner

Abstract

The utility model discloses an air conditioner indoor unit, a chassis of the air conditioner indoor unit and an air conditioner. The chassis of the air conditioner indoor unit comprises a chassis body, and the first side, in the length direction, of the chassis body is provided with a first bearing part for bearing the weight of a wind wheel motor of the air conditioner indoor unit, a second bearing part for bearing the weight of an electric control box of the air conditioner indoor unit and a third bearing part for bearing the weight of a face frame of the air conditioner indoor unit; the chassis body is provided with a to-be-reinforced area located among the first bearing part, the second bearing part and the third bearing part, and the reinforcing structure is arranged in the to-be-reinforced area. The reinforcing structure is arranged in the to-be-reinforced area of the chassis body, so that the structural strength of the to-be-reinforced area is improved, and cracking of the to-be-reinforced area caused by impact force of falling of the air conditioner indoor unit is avoided.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to a chassis for an indoor air conditioning unit, an indoor air conditioning unit, and an air conditioner. Background Technology

[0002] In the indoor unit of an air conditioner, the area of ​​the chassis near the fan motor and electrical control box—the area where weight is concentrated—is prone to cracking, posing a quality risk to the product. Furthermore, insufficient strength in this weight-concentrated area of ​​the chassis increases the probability of cracking during drop tests. Utility Model Content

[0003] This application provides a chassis for an air conditioner indoor unit, comprising:

[0004] The chassis body has a first support portion along its length for supporting the weight of the fan motor of the indoor air conditioner unit, a second support portion for supporting the weight of the electrical control box of the indoor air conditioner unit, and a third support portion for supporting the weight of the face frame of the indoor air conditioner unit; and

[0005] The chassis body has a reinforcement area located between the first load-bearing part, the second load-bearing part and the third load-bearing part, and the reinforcement structure is disposed in the reinforcement area.

[0006] In some exemplary embodiments, the reinforcing structure includes:

[0007] The first reinforcing rib, which encloses a closed area; and

[0008] A second reinforcing rib is provided within the enclosed area.

[0009] In some exemplary embodiments, the enclosed region includes a first sub-region and a second sub-region, the first sub-region and the second sub-region are connected to make the enclosed region L-shaped, and the second reinforcing rib is provided in both the first sub-region and the second sub-region.

[0010] In some exemplary embodiments, the first sub-region extends along the length of the chassis body and is close to the third support portion, and the second sub-region is located on one side of the first sub-region near the first side of the chassis body and extends along the side from the third support portion toward the first support portion and the second support portion.

[0011] In some exemplary embodiments, the second reinforcing rib includes a first U-shaped rib disposed in the first sub-region and a second U-shaped rib disposed in the second sub-region;

[0012] The two opposite arms of the first U-shaped rib are respectively connected to the two opposite side walls of the first sub-region, and the middle arm of the first U-shaped rib connecting the two opposite arms is connected to the chassis body.

[0013] The two opposite arms of the second U-shaped rib are respectively connected to the two opposite side walls of the second sub-region, and the middle arm of the second U-shaped rib connecting the two opposite arms is connected to the chassis body.

[0014] In some exemplary embodiments, the third bearing portion includes a first screw post, which is configured to be fixed to the face frame by screws, and a third reinforcing rib is provided between the first screw post and the chassis body.

[0015] In some exemplary embodiments, the third reinforcing rib is U-shaped, and the opposite two sides of the third reinforcing rib are respectively connected to the outer wall surface of the first screw post and the chassis body. The middle arm of the third reinforcing rib connecting the opposite two sides and the root of the first screw post are both connected to the outer wall surface of the first sub-region.

[0016] In some exemplary embodiments, the first side of the chassis body is further provided with a bent portion that bends to one end, and a fourth reinforcing rib is provided at the connection between the chassis body and the bent portion.

[0017] In some exemplary embodiments, multiple fourth reinforcing ribs are provided, and the fourth reinforcing ribs extend from the chassis body to the bending portion, and the multiple fourth reinforcing ribs are arranged at intervals in a direction perpendicular to the extension direction of the fourth reinforcing ribs.

[0018] In some exemplary embodiments, the chassis body is further provided with a front volute and a rear volute, and an air duct cavity is formed between the front volute and the rear volute. The first bearing portion, the second bearing portion and the third bearing portion are located on the same side of the air duct cavity, and the outer wall surface of the front volute opposite to the air duct cavity is provided with a fifth reinforcing rib.

[0019] In some exemplary embodiments, the fifth reinforcing rib is provided in multiple portions and arranged sequentially at intervals along the length direction of the front volute portion;

[0020] The plurality of fifth reinforcing ribs are located on one side close to the first bearing portion, the second bearing portion and the third bearing portion, or the plurality of fifth reinforcing ribs are distributed along the entire length of the front volute portion.

[0021] In some exemplary embodiments, the chassis body is provided with a water receiving groove, the front volute is used to form the water receiving groove, the fifth reinforcing rib is located inside the water receiving groove, and the lowest point of the fifth reinforcing rib is higher than the lowest point of the water receiving groove.

[0022] In some exemplary embodiments, the chassis body is further provided with a front volute and a rear volute, and an air duct cavity is formed between the front volute and the rear volute. The first bearing portion, the second bearing portion and the third bearing portion are located on the same side of the air duct cavity, and a sixth reinforcing rib is provided on the outer wall surface of the rear volute away from the air duct cavity.

[0023] In some exemplary embodiments, the sixth reinforcing rib is provided in multiples and arranged sequentially at intervals along the length direction of the rear volute portion.

[0024] In some exemplary embodiments, the chassis body is provided with an air duct cavity for mounting the fan wheel of the air conditioner indoor unit, a first fixing part for fixing the motor cover of the fan wheel motor, and a second fixing part for fixing the motor cover of the fan wheel motor. The second fixing part is located on the side of the first fixing part away from the air duct cavity, and the first bearing part includes the second fixing part.

[0025] In some exemplary embodiments, along the length direction of the chassis body, both the second support portion and the third support portion are located between the first fixing portion and the second fixing portion.

[0026] In some exemplary embodiments, the chassis body is provided with a support rib, which is located below the fixing part of the motor cover of the wind turbine motor for fixing the electrical control box, and the second bearing part includes the support rib.

[0027] This application also provides an indoor air conditioner unit, including the chassis of the indoor air conditioner unit described in any of the above embodiments.

[0028] In some exemplary embodiments, the indoor unit of the air conditioner further includes:

[0029] The impeller is installed in the air duct cavity formed between the front and rear volutes of the chassis body;

[0030] A wind turbine motor is connected to the wind turbine, and the motor cover of the wind turbine motor is configured to be fixed to the first fixing part and the second fixing part of the chassis body;

[0031] A heat exchanger is installed on the chassis and located upstream of the wind turbine;

[0032] An electrical control box is installed on the chassis and fixed to the motor cover of the wind turbine motor, wherein the second bearing portion of the chassis body is located below the fixing part of the motor cover of the wind turbine motor for fixing the electrical control box; and

[0033] The faceplate is fixedly connected to the third load-bearing part of the chassis body.

[0034] This application also provides an air conditioner, including the indoor unit of the air conditioner described in any of the above embodiments.

[0035] This application embodiment describes an air conditioner indoor unit chassis. The chassis body has three support sections along its length on a first side: a first support section, a second support section, and a third support section. The first support section supports the weight of the air conditioner indoor unit's fan motor, the second support section supports the weight of the air conditioner indoor unit's electrical control box, and the third support section supports the weight of the air conditioner indoor unit's front frame. The three support sections form a triangular area, which is the area of ​​the chassis that needs reinforcement—the part of the chassis most prone to cracking from a fall impact. Therefore, it is necessary to structurally reinforce this area. In this embodiment, a reinforcing structure is provided in this area to increase its structural strength and prevent cracking caused by the impact of a fall from the air conditioner indoor unit.

[0036] Other features and advantages of this application will be set forth in the following description. Attached Figure Description

[0037] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0038] Figure 1 This is a schematic diagram of the structure of the indoor unit of an air conditioner according to an embodiment of this application;

[0039] Figure 2 This is a three-dimensional structural diagram of the chassis of an air conditioner indoor unit according to an embodiment of this application;

[0040] Figure 3 for Figure 2 An enlarged schematic diagram of the A-section structure;

[0041] Figure 4 This is another three-dimensional structural diagram of the chassis of the air conditioner indoor unit according to an embodiment of this application;

[0042] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of section B;

[0043] Figure 6 This is a front view schematic diagram of the chassis of the air conditioner indoor unit according to an embodiment of this application;

[0044] Figure 7 for Figure 6 Schematic diagram of the CC-direction cross-section structure.

[0045] Figure label:

[0046] 1-Chassis, 10-Chassis body, 11-First bearing part, 12-Second bearing part, 13-Third bearing part, 15-First reinforcing rib, 151-Enclosed area, 152-First sub-area, 153-Second sub-area, 16-Second reinforcing rib, 161-First U-shaped rib, 162-Second U-shaped rib, 17-Third reinforcing rib, 18-Bending part, 19-Fourth reinforcing rib, 110-Air duct cavity, 111-Front volute, 112-Rear volute, 113-Fifth reinforcing rib, 114-Sixth reinforcing rib, 115-Water receiving trough, 117-First fixing part, 118-Second fixing part, 119-Supporting rib, 120-Electrical control box mounting cavity, 121-Motor mounting cavity;

[0047] 2-Heat exchanger, 3-Electrical control box, 31-Screw, 4-Motor cover. Detailed Implementation

[0048] This application describes several embodiments, but these descriptions are exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0049] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0050] This application provides a chassis 1 for an air conditioner indoor unit, such as... Figures 1-7 As shown, it includes: chassis body 10 and reinforcing structure.

[0051] The chassis body 10 has a first support part 11 for supporting the weight of the fan motor of the air conditioner indoor unit, a second support part 12 for supporting the weight of the electrical control box 3 of the air conditioner indoor unit, and a third support part 13 for supporting the weight of the face frame of the air conditioner indoor unit on the first side along the length direction.

[0052] The chassis body 10 has a reinforcement area located between the first load-bearing part 11, the second load-bearing part 12 and the third load-bearing part 13 (e.g. Figure 3 (The area indicated by the thick black solid line in the middle) The reinforcement structure is located in the area to be reinforced.

[0053] In the chassis 1 of this application embodiment, the chassis body 10 has three support parts on its first side (e.g., the right side) along its length direction (e.g., the left-right direction). The first support part 11 supports the weight of the fan motor of the indoor air conditioner unit, the second support part 12 supports the weight of the electrical control box 3 of the indoor air conditioner unit, and the third support part 13 supports the weight of the front frame of the indoor air conditioner unit. The three support parts form a triangular area, which is the area of ​​the chassis 1 that needs reinforcement, i.e., the part of the chassis 1 most prone to cracking due to drop impact. Therefore, it is necessary to structurally reinforce the area of ​​the chassis 1 that needs reinforcement. In this application embodiment, a reinforcing structure is provided in this area to increase its structural strength and prevent cracking caused by the impact of the indoor air conditioner unit falling.

[0054] In some exemplary embodiments, such as Figure 3 As shown, the reinforcing structure includes a first reinforcing rib 15 and a second reinforcing rib 16. The first reinforcing rib 15 encloses a closed area 151, and the second reinforcing rib 16 is disposed within the closed area 151.

[0055] In the area to be reinforced of chassis 1, the first reinforcing rib 15 in the reinforcing structure surrounds the area to be reinforced, forming a closed area 151, and a second reinforcing rib 16 is set in the closed area 151, so that the impact force of the chassis 1 dripping is buffered and distributed in this closed area, avoiding the force being concentrated at one point and generating a crack support point.

[0056] In some exemplary embodiments, such as Figure 3 As shown, the closed region 151 includes a first sub-region 152 and a second sub-region 153. The first sub-region 152 and the second sub-region 153 are connected to make the closed region 151 L-shaped. A second reinforcing rib 16 is provided in both the first sub-region 152 and the second sub-region 153.

[0057] The enclosed area 151 is generally L-shaped, and includes a first sub-area 152 and a second sub-area 153 that are connected. The first sub-area 152 extends along the length of the chassis body 10 and is close to the third support portion 13. The second sub-area 153 is located on the side of the first sub-area 152 that is close to the first side of the chassis body 10 (e.g., the second sub-area 153 is located on the right side of the first sub-area 152) and extends along the side from the third support portion 13 toward the first support portion 11 and the second support portion 12, so that the first sub-area 152 and the second sub-area 153 are connected and form an L-shape.

[0058] Both the first sub-region 152 and the second sub-region 153 are provided with second reinforcing ribs 16. Each second reinforcing rib 16 includes a first U-shaped rib 161 disposed in the first sub-region 152 and a second U-shaped rib 162 disposed in the second sub-region 153. The opposite side arms of the first U-shaped rib 161 are respectively connected to the opposite side walls of the first sub-region 152 (i.e., the opposite side arms of the first U-shaped rib 161 are connected to the first reinforcing rib 15 forming the first sub-region 152). The middle arm of the first U-shaped rib 161 connecting the opposite side arms is connected to the bottom. The chassis body 10 is connected to the first reinforcing rib 15 via the first U-shaped rib 161 to enhance the connection strength between the first reinforcing rib 15 and the chassis body 10. The opposite side arms of the second U-shaped rib 162 are respectively connected to the opposite side walls of the second sub-region 153 (i.e., the opposite side arms of the second U-shaped rib 162 are connected to the first reinforcing rib 15 forming the second sub-region 153). The middle arm of the second U-shaped rib 162 connecting the opposite side arms is connected to the chassis body 10 to enhance the connection strength between the first reinforcing rib 15 and the chassis body 10. Furthermore, the first sub-region 152 may have multiple first U-shaped ribs 161, which may be evenly spaced; the second sub-region 153 may have multiple second U-shaped ribs 162, which may be evenly spaced.

[0059] In the area to be reinforced in the chassis 1, an L-shaped closed area 151 is formed by the first reinforcing rib 15, and a first U-shaped rib 161 and a second U-shaped rib 162 are added at equal intervals within the L-shaped closed area 151. The first reinforcing rib 15, the first U-shaped rib 161 and the second U-shaped rib 162 enhance the structural strength of the area to be reinforced in the chassis 1, so that the impact force of the air conditioner indoor unit falling is buffered and distributed within this closed area 151, avoiding the concentration of force on a single point on the chassis body 10 and the generation of cracking support points.

[0060] In some exemplary embodiments, such as Figure 3 As shown, the third bearing part 13 includes a first screw post, which is fixed to the face frame by screws, and a third reinforcing rib 17 is provided between the first screw post and the chassis body 10.

[0061] The third load-bearing part 13, used to support the weight of the front frame, includes a first screw post. The front frame can be fixed to the first screw post by screws; that is, the first screw post is the fixing point between the front frame and the chassis body 10. When the indoor unit of the air conditioner falls, the weight of the entire core of the indoor unit is easily transferred to the vicinity of the first screw post. Therefore, a third reinforcing rib 17 is provided between the first screw post and the chassis body 10 to enhance the connection strength between the first screw post and the chassis body 10 and prevent cracking at the first screw post when the indoor unit of the air conditioner falls.

[0062] In some exemplary embodiments, such as Figure 3 As shown, the third reinforcing rib 17 is U-shaped. The two opposite arms of the third reinforcing rib 17 are connected to the outer wall of the first screw post and the chassis body 10, respectively. The middle arm of the third reinforcing rib 17 connecting the two opposite arms and the root of the first screw post are connected to the outer wall of the first sub-region 152 (that is, the root of the first screw post near the first sub-region 152 is connected to the first reinforcing rib 15 surrounding the first sub-region 152, and the middle arm of the third reinforcing rib 17 is also connected to the first reinforcing rib 15 surrounding the first sub-region 152).

[0063] A U-shaped third reinforcing rib 17 is provided between the first screw post and the chassis body 10. The root of the first screw post can be connected to the chassis body 10 over a large area through the added third reinforcing rib 17, which can be used to distribute the stress area of ​​the first screw post and better prevent the root of the first screw post from cracking when the indoor unit of the air conditioner falls.

[0064] In some exemplary embodiments, such as Figure 1 and Figure 2 As shown, the chassis body 10 has a duct cavity 110 for mounting the impeller (e.g., a cross-flow impeller) of the indoor air conditioner unit, a motor mounting cavity 121 for mounting the impeller motor, and an electrical control box mounting cavity 120 for mounting the electrical control box 3. The duct cavity 110, motor mounting cavity 121, and electrical control box mounting cavity 120 can be arranged sequentially along the length of the chassis body 10 (e.g., from left to right), and the motor mounting cavity 121 and electrical control box mounting cavity 120 are located on the first side near the chassis body 10. The duct cavity 110 can be arranged laterally, so that the axis of the cross-flow impeller installed in the duct cavity 110 extends in the left-right direction; the motor mounting cavity 121 is located on the side of the electrical control box mounting cavity 120 near the duct cavity 110, so that the impeller can be connected to the impeller motor and can rotate under the drive of the impeller motor. The impeller motor can be fixed to the motor mounting cavity 121 by the motor cover 4, and the impeller motor can be located below the motor cover 4.

[0065] In some exemplary embodiments, such as Figure 3As shown, the chassis body 10 is also provided with a first fixing part 117 for fixing the motor cover 4 of the wind turbine motor and a second fixing part 118 for fixing the motor cover 4 of the wind turbine motor. The second fixing part 118 is located on the side of the first fixing part 117 away from the wind duct cavity 110. The first bearing part 11 includes the second fixing part 118.

[0066] On the chassis body 10, the first fixing part 117 and the second fixing part 118 can be disposed in the motor mounting cavity 121. That is, the first fixing part 117 and the second fixing part 118 can be located on the right side of the air duct cavity 110, and the second fixing part 118 can be located on the side of the first fixing part 117 away from the air duct cavity 110 (e.g., the right side). The motor cover 4 of the wind turbine motor can be fixed to the first fixing part 117 and the second fixing part 118 of the chassis body 10 (e.g., by screws). The left side of the motor cover 4 can be fixed to the first fixing part 117, and the right side of the motor cover 4 can be fixed to the second fixing part 118. The weight of the wind turbine motor can be transferred to the second fixing part 118 on the chassis body 10 through the motor cover 4. Therefore, the second fixing part 118 (i.e., the first bearing part 11) on the chassis body 10 can be used to bear the weight of the wind turbine motor. Gravity concentration occurs on the part of the chassis body 10 near the second fixing part 118, forming a reinforcement area.

[0067] In the indoor unit of the air conditioner, a heat exchanger 2 is provided upstream of the fan wheel (i.e., the fan wheel is located on the air outlet side of the heat exchanger 2), and the right side of the heat exchanger 2 is fixedly connected to the left side of the motor cover 4 of the fan wheel motor. This causes the weight of the heat exchanger 2, the weight of the fan wheel motor, and the weight of the fan wheel connected to the fan wheel motor to be transmitted through the motor cover 4 to the first fixing part 117 connected to the chassis body 10 and the motor cover 4.

[0068] In some exemplary embodiments, such as Figures 1-3 As shown, the chassis body 10 is provided with a support rib 119, which is located below the fixing part of the motor cover 4 of the wind turbine motor for fixing the electrical control box 3. The second bearing part 12 includes the support rib 119.

[0069] In the indoor unit of the air conditioner, the electrical control box 3 is fixed to the motor cover 4 of the fan motor (e.g., via...). Figure 1 The screw 31 shown is used for fixing, and the support rib 119 on the chassis body 10 is located directly below the fixing part on the motor cover 4 used to fix the control box 3 (e.g., the screw post on the motor cover 4 used to fix the control box 3). The gap between the fixing part on the motor cover 4 used to fix the control box 3 and the support rib 119 on the chassis body 10 is small. The weight of the control box 3 is easily transferred to the support rib 119 on the chassis body 10 through the motor cover 4. Therefore, the part of the chassis body 10 near the support rib 119 (second bearing part 12) experiences gravity concentration, forming a reinforcement area.

[0070] In some exemplary embodiments, such as Figure 3 As shown, along the length of the chassis body 10, the second support portion 12 and the third support portion 13 are both located between the first fixing portion 117 and the second fixing portion 118. That is, on the chassis body 10, along the left-right direction, the second support portion 12 and the third support portion 13 are located between the first fixing portion 117 and the second fixing portion 118 that fix the motor cover 4. The first fixing portion 117 can be located on the left side, the second fixing portion 118 can be located on the right side, and the second support portion 12 and the third support portion 13 can be located to the right of the first fixing portion 117 and to the left of the second fixing portion 118.

[0071] In some exemplary embodiments, such as Figure 3 and Figure 4 As shown, the first side (e.g., the right side) of the chassis body 10 is also provided with a bent portion 18 that bends to one end, and the connection part (i.e. the corner part) between the chassis body 10 and the bent portion 18 is provided with a fourth reinforcing rib 19.

[0072] During the transportation of packaged indoor air conditioner units, the units may fall. When the first side (e.g., the right side or right corner) of the chassis body 10 hits the ground first, the bent portion 18 on the first side of the chassis body 10 will collide with the front frame. This bent portion 18 forms the transfer point between the right side of the core of the entire indoor air conditioner unit and the right side of the outer casing, making the connection between the chassis body 10 and the bent portion 18 prone to cracking. Therefore, a fourth reinforcing rib 19 is provided at the connection between the chassis body 10 and the bent portion 18 to increase the strength of the connection and prevent cracking.

[0073] In some exemplary embodiments, such as Figure 3 and Figure 4 As shown, there are multiple fourth reinforcing ribs 19. The fourth reinforcing ribs 19 extend from the chassis body 10 to the bending portion 18 (i.e., the fourth reinforcing ribs 19 extend along the bending direction). The multiple fourth reinforcing ribs 19 are arranged at intervals in a direction perpendicular to the extension direction of the fourth reinforcing ribs 19 (e.g., equally spaced).

[0074] A fourth reinforcing rib 19 is added laterally evenly at the connection point (i.e., the corner) between the chassis body 10 and the bending part 18, thereby increasing the strength of the connection point and preventing cracking.

[0075] In some exemplary embodiments, such as Figure 3 and Figure 7As shown, the chassis body 10 is also provided with a front volute 111 and a rear volute 112, and an air duct cavity 110 is formed between the front volute 111 and the rear volute 112. The first support part 11, the second support part 12 and the third support part 13 are located on the same side of the air duct cavity 110 (e.g., the right side). The outer wall surface of the front volute 111 facing away from the air duct cavity 110 is provided with a fifth reinforcing rib 113.

[0076] The chassis body 10 is provided with a front volute 111 and a rear volute 112. A duct cavity 110 for mounting the wind turbine is formed between the front volute 111 and the rear volute 112. The duct cavity 110 is arranged laterally, so that the axis of the cross-flow wind turbine installed in the duct cavity 110 extends in the left and right direction.

[0077] The accuracy of the air duct curve of the air duct cavity 110 in the chassis 1 is a key factor affecting the air volume and noise of the air conditioner. The front volute 111 and rear volute 112 are ribs protruding from the chassis body 10, which are prone to deformation, affecting air volume and sound quality. Therefore, a fifth reinforcing rib 113 is provided on the outer wall surface of the front volute 111 facing away from the air duct cavity 110. This increases the structural strength of the front volute 111, prevents deformation under stress, and ensures that the curve shape of the front volute 111 matches the design shape, avoiding problems such as reduced air volume or abnormal noise caused by deformation.

[0078] In addition, in the indoor unit of the air conditioner, the heat exchanger 2 is located upstream of the impeller (i.e., the impeller is set on the air outlet side of the heat exchanger 2), and the heat exchanger 2 is fixedly connected to the motor cover 4 of the impeller motor. This causes the weight of the heat exchanger 2 to be transferred to the fixed part of the chassis body 10 and the motor cover 4 of the impeller motor (e.g., the first fixed part 117 of the chassis body 10). This may cause cracking on the side of the front volute 111 near the first fixed part 117 (e.g., the right side of the front volute 111). Therefore, a fifth reinforcing rib 113 is provided on the side of the front volute 111 near the first fixed part 117 to prevent the front volute 111 from cracking due to impact when the indoor unit of the air conditioner falls.

[0079] In some exemplary embodiments, multiple fifth reinforcing ribs 113 are provided and arranged sequentially at intervals along the length direction (e.g., left-right direction) of the front volute portion 111. For example, Figure 3 As shown, a plurality of fifth reinforcing ribs 113 are located on one side (e.g., the right side) near the first bearing portion 11, the second bearing portion 12 and the third bearing portion 13; or, a plurality of fifth reinforcing ribs 113 are distributed along the entire length of the front volute portion 111.

[0080] Multiple fifth reinforcing ribs 113 are arranged sequentially along the left-right direction, and these ribs can be concentrated on the right side of the front volute 111 to prevent the right side of the front volute 111 from cracking due to impact when the indoor unit of the air conditioner falls. They also enhance the strength of the front volute 111, preventing deformation that could affect airflow and sound quality. The multiple fifth reinforcing ribs 113 are evenly spaced within a length of approximately 200mm from the right end face of the front volute 111, with the interval between adjacent ribs ranging from approximately 20mm to 40mm, such as 20mm, 25mm, 30mm, 35mm, or 40mm. The number of fifth reinforcing ribs 113 can be five or other quantities.

[0081] Of course, multiple fifth reinforcing ribs 113 can also be distributed along the entire length of the front volute 111 (e.g., evenly spaced), with the interval between two adjacent fifth reinforcing ribs 113 being approximately 20mm-40mm. This design can also better prevent the front volute 111 from cracking due to impact when the indoor unit of the air conditioner falls, and prevent the front volute 111 from deforming, thereby affecting the airflow and sound quality.

[0082] In some exemplary embodiments, such as Figure 3 and Figure 7 As shown, the chassis body 10 is provided with a water receiving groove 115, and the front volute 111 is used to form the water receiving groove 115. The fifth reinforcing rib 113 is located inside the water receiving groove 115, and the lowest point of the fifth reinforcing rib 113 is higher than the lowest point of the water receiving groove 115. The height difference between the lowest point of the fifth reinforcing rib 113 and the lowest point of the water receiving groove 115 is H (see [reference]). Figure 7 ).

[0083] The front volute 111 forms the water collection groove 115 of the chassis body 10, causing the fifth reinforcing rib 113 provided on the front volute 111 to be located within the water collection groove 115. The lowest point of the fifth reinforcing rib 113 is higher than the lowest point of the water collection groove 115. Therefore, adding the fifth reinforcing rib 113 will not cause water accumulation in the water collection groove 115. In addition, adding the fifth reinforcing rib 113 can also prevent the water collection groove 115 from cracking when the indoor unit of the air conditioner falls.

[0084] In some exemplary embodiments, such as Figures 4-5 and Figure 7 As shown, a sixth reinforcing rib 114 is provided on the outer wall surface of the rear volute portion 112 that is away from the air duct cavity 110.

[0085] The accuracy of the air duct curve of the air duct cavity 110 in the chassis 1 is a key factor affecting the air volume and noise of the air conditioner. The front volute 111 and rear volute 112 are ribs protruding from the chassis body 10, which are prone to deformation, affecting air volume and sound quality. Therefore, a sixth reinforcing rib 114 is provided on the outer wall surface of the rear volute 112 facing away from the air duct cavity 110. This increases the structural strength of the rear volute 112, prevents deformation under stress, and ensures that the curve shape of the rear volute 112 matches the design shape, avoiding problems such as reduced air volume or abnormal noise caused by deformation.

[0086] In some exemplary embodiments, such as Figure 4 and Figure 5 As shown, multiple sixth reinforcing ribs 114 are provided and arranged sequentially at intervals along the length direction (e.g., left-right direction) of the rear volute portion 112. The multiple sixth reinforcing ribs 114 can be evenly distributed along the entire length of the rear volute portion 112.

[0087] This application also provides an indoor air conditioner unit, including the chassis 1 of the indoor air conditioner unit in any of the above embodiments.

[0088] In some exemplary embodiments, such as Figures 1-7 As shown, the indoor unit of the air conditioner also includes a fan wheel, a fan wheel motor, a heat exchanger 2, an electrical control box 3, and a front panel.

[0089] The wind turbine is installed in the air duct cavity 110 formed between the front volute 111 and the rear volute 112 of the chassis body 10. The wind turbine can be a cross-flow wind turbine.

[0090] The wind turbine motor is connected to the wind turbine, and the motor cover 4 of the wind turbine motor is configured to be fixed to the first fixing part 117 and the second fixing part 118 of the chassis body 10. The right side of the air duct cavity 110 of the chassis body 10 is provided with a motor mounting cavity 121, and the wind turbine motor can be installed in the motor mounting cavity 121. The wind turbine motor can be fixed to the chassis body 10 by the motor cover 4, and the left and right sides of the motor cover 4 can be fixed to the first fixing part 117 and the second fixing part 118 of the chassis body 10 by screws.

[0091] The heat exchanger 2 is installed on the chassis 1 and located upstream of the impeller. The left side of the heat exchanger 2 can be fixed to the chassis body 10, and the right side of the heat exchanger 2 can be fixedly connected to the left side of the motor cover 4.

[0092] The electrical control box 3 is installed onto the chassis 1 and fixed to the motor cover 4 of the wind turbine motor. The second support portion 12 of the chassis body 10 is located below the fixing part of the motor cover 4 of the wind turbine motor for fixing the electrical control box 3. An electrical control box mounting cavity 120 is provided on the right side of the air duct cavity 110 and the motor mounting cavity 121 of the chassis body 10. The electrical control box 3 is installed in the electrical control box mounting cavity 120, and the electrical control box 3 is fixed to the motor cover 4 by screws 31. The support rib 119 (second support portion 12) of the chassis body 10 is located directly below the screw post (fixed with screws 31) of the motor cover 4.

[0093] The faceplate is fixedly connected to the third support portion 13 of the chassis body 10. The faceplate can be fixed to the first screw post of the chassis body 10 by screws.

[0094] In some exemplary embodiments, the indoor unit of the air conditioner is a wall-mounted unit.

[0095] This application also provides an air conditioner, including the indoor unit of the air conditioner in any of the above embodiments.

[0096] In summary, in the indoor unit of the air conditioner, the weight of the fan motor, the weight of the electrical control box 3, and the weight of the front frame are concentrated in the area to be reinforced in the chassis body 10. The first side of the chassis body 10 along the length direction gathers the weight of the evaporator, the weight of the fan motor, the weight of the electrical control box 3, and the weight of the front frame, resulting in the greatest risk of drop cracking in this area of ​​the chassis body 10.

[0097] In this embodiment, reinforcing ribs are added to different stress concentration areas of the chassis 1. Specifically, this includes: adding a first reinforcing rib 15 to the area to be reinforced to form a closed area 151, and setting a U-shaped second reinforcing rib 16 in the closed area 151; adding a U-shaped third reinforcing rib 17 at the root of the first screw post; providing a fourth reinforcing rib 19 at the connection between the chassis body 10 and the bending part 18; and adding a fifth reinforcing rib 113 and a sixth reinforcing rib 114 to the front volute 111 and the rear volute 112, respectively, to prevent the chassis body 10 from cracking due to a fall.

[0098] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0099] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of those features.

[0100] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0101] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0102] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0104] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A base pan of an indoor unit of an air conditioner, characterized by, The application relates to a chassis body of an air conditioner, which comprises a first bearing part for bearing the weight of a wind wheel motor of an air conditioner indoor unit, a second bearing part for bearing the weight of an electric control box of the air conditioner indoor unit, and a third bearing part for bearing the weight of a face frame of the air conditioner indoor unit. The chassis body has a to-be-strengthened area between the first bearing part, the second bearing part and the third bearing part, and a strengthening structure is arranged in the to-be-strengthened area. The strengthening structure comprises a first reinforcing rib and a second reinforcing rib. The first reinforcing rib surrounds a closed area, and the second reinforcing rib is arranged in the closed area.

2. The base pan of claim 1, wherein, The closed area comprises a first sub-area and a second sub-area, and the first sub-area and the second sub-area are connected to form an L-shaped closed area. The first sub-area extends along the length direction of the chassis body and is close to the third bearing part, and the second sub-area is located on one side of the edge of the first sub-area close to the first side of the chassis body and extends from the third bearing part to the side where the first bearing part and the second bearing part are located. The second reinforcing rib comprises a first U-shaped rib arranged in the first sub-area and a second U-shaped rib arranged in the second sub-area.

3. The base pan of claim 2, wherein, The opposite two side arms of the first U-shaped rib are connected with the opposite two side walls of the first sub-area, and the middle arm of the first U-shaped rib connecting the opposite two side arms is connected with the chassis body.

4. The base pan of claim 3, wherein, The opposite two side arms of the second U-shaped rib are connected with the opposite two side walls of the second sub-area, and the middle arm of the second U-shaped rib connecting the opposite two side arms is connected with the chassis body.

5. The base pan of claim 3, wherein, The third bearing part comprises a first screw column arranged to be fixed with the face frame through a screw, and a third reinforcing rib is arranged between the first screw column and the chassis body. The third reinforcing rib is in a U shape, the opposite two side arms of the third reinforcing rib are connected with the outer side wall surface of the first screw column and the chassis body, and the middle arm of the third reinforcing rib connecting the opposite two side arms and the root of the first screw column are connected with the outer side wall surface of the first sub-area. The first side of the chassis body is further provided with a bending part bent towards one end, and a fourth reinforcing rib is arranged at the connecting part between the chassis body and the bending part.

6. The base pan of claim 4, wherein, The fourth reinforcing rib is arranged in plurality, extends from the chassis body to the bending part, and the plurality of fourth reinforcing ribs are arranged in sequence and at intervals in a direction perpendicular to the extending direction of the fourth reinforcing rib.

7. The base pan of claim 6, wherein, The chassis body is further provided with a front volute part and a rear volute part, a wind channel cavity is formed between the front volute part and the rear volute part, the first bearing part, the second bearing part and the third bearing part are located on the same side of the wind channel cavity, and a fifth reinforcing rib is arranged on the outer wall surface of the front volute part away from the wind channel cavity. 8.The base pan of the air conditioner indoor unit according to any one of claims 1 to 7, wherein, The fifth reinforcing rib is arranged in plurality and arranged in sequence and at intervals along the length direction of the front volute part. 9.The base pan of the indoor unit of the air conditioner according to claim 8, characterized by, ​ 10.The base pan of the air conditioner indoor unit according to any one of claims 1 to 7, wherein ​ 11.The base pan of the indoor unit of the air conditioner according to claim 10, characterized in that, ​ The fifth reinforcing ribs are located on one side close to the first bearing part, the second bearing part and the third bearing part, or the fifth reinforcing ribs are distributed along the entire length of the front volute part. 12.The base pan of the indoor unit of the air conditioner according to claim 10, characterized by, The bottom disc body is provided with a water receiving groove, the front volute part is used to enclose the water receiving groove, the fifth reinforcing ribs are located in the water receiving groove, and the lowest point of the fifth reinforcing ribs is higher than the lowest point of the water receiving groove. 13.The base pan of the air conditioner indoor unit according to any one of claims 1 to 7, wherein The bottom disc body is further provided with a front volute part and a rear volute part, a wind channel cavity is formed between the front volute part and the rear volute part, the first bearing part, the second bearing part and the third bearing part are located on the same side of the wind channel cavity, and an outer wall surface of the rear volute part away from the wind channel cavity is provided with a sixth reinforcing rib. 14.The base pan of claim 13, wherein, The sixth reinforcing rib is provided with a plurality of reinforcing ribs and is arranged in sequence along the length direction of the rear volute part. 15.The base pan of the air conditioner indoor unit according to any one of claims 1 to 7, wherein, The bottom disc body is provided with a wind channel cavity for mounting a wind wheel of the air conditioner indoor unit, a first fixing part for fixing a motor cover of a wind wheel motor, and a second fixing part for fixing the motor cover of the wind wheel motor, the second fixing part is located on the side of the first fixing part away from the wind channel cavity, and the first bearing part includes the second fixing part. 16.The base pan of claim 15, wherein, Along the length direction of the bottom disc body, the second bearing part and the third bearing part are located between the first fixing part and the second fixing part. 17.The base pan of the air conditioner indoor unit according to any one of claims 1 to 7, wherein, The bottom disc body is provided with a support rib located below the fixing part of the motor cover of the wind wheel motor for fixing the electric control box, and the second bearing part includes the support rib.

18. An air conditioner indoor unit, characterized by comprising: The air conditioner indoor unit comprises: The bottom disc of the air conditioner indoor unit according to any one of claims 1 to 17. 19.The air conditioner indoor unit of claim 18, wherein, The air conditioner indoor unit further comprises: a wind wheel mounted in the wind channel cavity formed between the front volute part and the rear volute part of the bottom disc body; a wind wheel motor connected with the wind wheel, and a motor cover of the wind wheel motor is fixed with the first fixing part and the second fixing part of the bottom disc body; a heat exchanger mounted to the bottom disc and located upstream of the wind wheel; an electric control box mounted to the bottom disc and fixed with the motor cover of the wind wheel motor, and the second bearing part of the bottom disc body is located below the fixing part of the motor cover of the wind wheel motor for fixing the electric control box; and a face frame fixedly connected with the third bearing part of the bottom disc body. The air conditioner indoor unit comprises the air conditioner indoor unit according to claim 18 or 19.

20. An air conditioner characterized by comprising: ​

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