Heat source unit and air conditioner

Abstract

The invention discloses a heat source unit and an air conditioner. The heat source unit comprises a shell, a heat source heat exchanger and a fan support, the fan support comprises two supporting rods arranged in the lateral direction in a spaced mode and at least one fixing support installed between the two supporting rods, and the fixing support is arranged to be any one of a motor support, a bottom support and a top support. The supporting rod comprises a rear wall and two side walls extending forwards from the two sides of the rear wall respectively, the rear surface of the rear wall is in a streamline arch shape and arches towards the rear air inlet, and the front surface of the rear wall and the two side walls form a mounting groove. The fixed support comprises two mounting arms, and each mounting arm is correspondingly embedded and fixed in one mounting groove. The windward side with the streamline arch can reduce turbulent flow and differential pressure resistance, enables airflow to flow through the windward side more smoothly, and can reduce wind resistance of the fan support so as to reduce noise generated when a motor drives a wind wheel to rotate and improve air volume.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioning equipment technology, specifically to a heat source unit and an air conditioner. Background Technology

[0002] like Figures 1-4 As shown, during the operation of the heat source unit, under the action of the fan 5, air will enter from the rear of the heat source unit and be blown out from the air outlet on the front of the heat source unit (the airflow direction is as follows). Figure 1 , Figure 2 and Figure 4 (As shown by the middle arrow). Since the fan bracket 1, which mounts the motor 4 (with the impeller 5 mounted on the motor shaft), obstructs airflow, the shape of the fan bracket 1 affects the airflow and noise of the entire machine.

[0003] like Figures 1-4 As shown, each side of a traditional fan bracket is flat, allowing screws 3 to be driven in all directions. This design of the fan bracket 1 results in a larger contact area between the air and the fan bracket 1, leading to greater noise and reduced overall airflow. Summary of the Invention

[0004] This application provides a heat source unit, including: The outer casing includes a chassis, a top cover, a front cover and a rear cover located between the chassis and the top cover, and two side covers in the lateral direction, wherein the rear cover forms a rear air inlet and the front cover forms an air outlet; A heat source heat exchanger exchanges heat with an external heat source. The heat source heat exchanger includes a first heat exchange section, which is installed on the rear side of the chassis and is positioned opposite to the rear air inlet. A fan bracket is disposed between the first heat exchange section and the air outlet. The fan bracket includes two support rods spaced apart laterally, and at least one fixed support installed between the two support rods. The fixed support is any one of a motor support, a bottom support, and a top support. The support rod includes a rear wall and two side walls extending forward from both sides of the rear wall. The rear surface of the rear wall is streamlined and arched towards the rear air inlet. The front surface of the rear wall and the two side walls form a mounting groove. The fixed support includes two mounting arms, each of which is embedded and fixed in a mounting slot.

[0005] In some exemplary embodiments, the wall of the mounting groove is provided with at least one limiting groove, which is formed by a recess in the inner surface of the sidewall; The mounting arm is provided with a limiting protrusion, which is inserted into the limiting groove to position the mounting arm within the mounting groove.

[0006] In some exemplary embodiments, the mounting arm includes a side plate and a fixing nut, wherein the limiting protrusion and the fixing nut are respectively disposed on both sides of the side plate in the lateral direction; The limiting groove is provided with a fixing hole for the fastener to pass through in the lateral direction. The fastener passes through the fixing hole, the limiting protrusion and the side plate in the lateral direction in sequence, and is connected to the fixing nut.

[0007] In some exemplary embodiments, the mounting arm further includes an inner side plate and a connecting plate, the inner side plate and the side plate being arranged at intervals in the lateral direction, and one end of the inner side plate and the side plate being respectively connected to the two ends of the connecting plate in the lateral direction; The fixing nut is located between the inner side plate and the side plate, and the limiting protrusion is located on the side plate away from the inner side plate in the lateral direction.

[0008] In some exemplary embodiments, the two mounting arms are arranged at intervals in the lateral direction, each mounting arm is provided with a plurality of limiting protrusions and the plurality of limiting protrusions are arranged sequentially along the extension direction of the mounting arm, and the limiting protrusion on any mounting arm is located on the side away from the other mounting arm in the lateral direction. The two sidewalls include a first sidewall and a second sidewall, the limiting groove is disposed on the first sidewall, and the first sidewall of any of the support rods is located on the side of the second sidewall that is laterally away from the other support rod.

[0009] In some exemplary embodiments, the limiting groove extends in the front-rear direction, one end of the limiting groove extends to the end of the sidewall away from the rear wall and is provided with an opening for the limiting protrusion to slide into.

[0010] In some exemplary embodiments, the width of the limiting groove is set to gradually decrease along the front-back direction from the open opening toward the end of the limiting groove near the rear wall.

[0011] In some exemplary embodiments, the fixed support is configured as a motor support, the two mounting arms are configured as two first mounting arms, the motor support includes a motor frame, and the two first mounting arms are respectively connected to both ends of the motor frame; The motor frame has a central hole for mounting the motor, and a plurality of pre-positioning portions located on the outer periphery of the central hole for positioning the motor.

[0012] In some exemplary embodiments, the fixed support is configured as a bottom support, the two mounting arms are configured as two second mounting arms, and the bottom support further includes a base frame located between the two second mounting arms; The bottom of the two second mounting arms is provided with flanges, which are located at one end of the mounting groove near the chassis to prevent impurities or water on the chassis from entering the mounting groove.

[0013] In some exemplary embodiments, the chassis includes a bottom main board and a bottom mounting plate disposed vertically, the bottom mounting plate being connected to the chassis; The inner side plates of the two second mounting arms are respectively connected to the two ends of the bottom main board in the lateral direction; The bottom mounting plate has folded edges at both ends in the lateral direction, and the side plates of the second mounting arm are correspondingly set with the folded edges and connected by fasteners.

[0014] In some exemplary embodiments, the bottom motherboard is provided with a plurality of ventilation holes that extend through the front and rear directions, and the ventilation holes are configured as elongated holes extending in the lateral direction.

[0015] In some exemplary embodiments, the bottom motherboard is provided with at least one reinforcing rib, which is configured as a convex bulge extending in the lateral direction.

[0016] In some exemplary embodiments, the fixed support is configured as a top support, the two mounting arms are configured as two third mounting arms, and the top support further includes a top frame, the bottom of which is respectively connected to the top of the two third mounting arms; The top frame has a front connecting part at one end in the front-rear direction and a rear connecting part at the other end. The front connecting part is connected to the front cover plate, and the rear connecting part is connected to the heat source heat exchanger.

[0017] In some exemplary embodiments, the rear surface of the rear wall includes a first windward surface, a second windward surface, and an intermediate connecting surface, wherein one end of the first windward surface and one end of the second windward surface are smoothly connected through the intermediate connecting surface; The first windward surface and the second windward surface are configured to gradually move away from each other along the front-to-back direction from the side closer to the rear air inlet to the side closer to the air outlet.

[0018] In some exemplary embodiments, the first windward surface and the second windward surface are planar, the intermediate connecting surface is an arc-shaped surface, and the included angle between the first windward surface and the second windward surface is 30 degrees to 45 degrees.

[0019] This application also provides an air conditioner that includes the heat source unit described in any of the above embodiments.

[0020] In the heat source unit provided in this application embodiment, a support rod can be used to fix a motor, and a fan wheel can be installed on the motor shaft. The fan wheel generates airflow when it rotates. The support rod may include an end face facing the rear air inlet, which can be a windward surface. This windward surface is streamlined and arched, and can be a smooth, continuous surface that is not perpendicular to the airflow direction but has a certain angle with it. Compared to traditional fan brackets where each surface is flat and the windward surface is perpendicular to the airflow direction, the heat source unit in this application embodiment, due to its streamlined arched windward surface, reduces turbulence and pressure resistance, allowing airflow to pass more smoothly over the windward surface. Therefore, it can reduce the wind resistance of the fan bracket, thereby reducing noise when the motor drives the fan wheel and increasing airflow.

[0021] When fixing a motor in the fan bracket provided in this embodiment, the motor can be first installed on the motor support, and then the motor support can be fixedly connected to the support rod. The support rod has a limiting groove, and the mounting arm can have a limiting protrusion. The limiting groove of the support rod can cooperate with the limiting protrusion of the mounting arm for pre-assembly, so that the support rod and mounting arm can be fixedly connected later, which helps to improve the assembly efficiency of the motor.

[0022] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0023] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0024] Figure 1 A top view of the internal structure of a heat source unit provided for related technologies; Figure 2 for Figure 1 A magnified view of part A; Figure 3 for Figure 1 A schematic diagram of the mounting bracket and motor assembly structure of the heat source unit; Figure 4 for Figure 3 Schematic diagram of the BB-direction cross-section structure; Figure 5 A schematic diagram showing the disassembled heat source unit provided in some embodiments of this application; Figure 6 for Figure 5 Schematic diagram of the wind turbine support structure; Figure 7 for Figure 5 A disassembled diagram of the wind turbine support frame; Figure 8 for Figure 6Schematic diagram of the CC-direction cross-section structure; Figure 9 for Figure 7 A schematic diagram of the EE cross-sectional structure; Figure 10 for Figure 7 A magnified view of a portion of point D; Figure 11 for Figure 5 Schematic diagram of the motor support in the diagram; Figure 12 for Figure 11 A schematic diagram of the FF-directed cross-sectional structure; Figure 13 for Figure 11 Installation diagram of the motor support; Figure 14 for Figure 13 A magnified view of a portion of point G; Figure 15 for Figure 5 Schematic diagram of the bottom support in the middle; Figure 16 for Figure 15 Installation diagram of the bottom support; Figure 17 for Figure 5 Schematic diagram of the top support in the middle; Figure 18 for Figure 17 A schematic diagram of the installation of the top support.

[0025] The attached diagram lists the components represented by each number as follows: 1-Fan bracket, 11-Support rod, 111-Windward surface, 112-First windward surface, 113-Second windward surface, 114-Mounting groove, 115-First side wall, 116-Rear wall, 117-Limiting groove, 118-Intermediate connecting surface, 119-Second side wall, 12-Fixed support, 121-Mounting arm, 13-Fixed hole; 2-Motor support, 21-First mounting arm, 22-Limiting protrusion, 23-Fixing nut, 24-Bending part, 241-Side plate, 242-Connecting plate, 243-Inner side plate, 25-Motor frame, 251-Center hole, 252-Pre-positioning part, 253-Wire hole, 254-Folding plate, 255-Positioning bolt, 26-Rivet nut; 3-Screw, 4-Motor, 5-Windmill; 6-Outer shell, 61-Chassis, 62-Top cover, 63-Front cover, 64-Rear cover, 65-Side cover, 66-Rear air inlet, 67-Air outlet; 7-Heat source heat exchanger, 71-First heat exchange section; 8-Bottom support, 81-Second mounting arm, 82-Base frame, 821-Bottom main board, 822-Bottom mounting plate, 823-Snap-in hole, 824-Mounting hole, 825-Shaped part, 83-Air vent, 84-Reinforcing rib, 85-First bolt; 9-Top support, 91-Third mounting arm, 92-Top frame, 921-Top main board, 922-Front connection part, 923-Rear connection part. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0027] This application provides a heat source unit, such as... Figures 5 to 9 As shown, the heat source unit may include a housing 6, a heat exchanger 7, and a fan bracket 1. The housing 6 includes a chassis 61, a top cover 62, a front cover plate 63, a rear cover plate 64, and two side cover plates 65 located between the chassis 61 and the top cover 62. The rear cover plate 64 forms a rear air inlet 66, and the front cover plate 63 forms an air outlet 67. The heat exchanger 7 can exchange heat with an external heat source. The heat exchanger 7 may include a first heat exchange section 71, which is installed on the rear side of the chassis 61 and is opposite to the rear air inlet 66. The fan bracket 1 is disposed between the first heat exchange section 71 and the air outlet 67. The fan bracket 1 includes two support rods 11 spaced apart laterally, and at least one fixed support 12 installed between the two support rods 11. The fixed support 12 is any one of a motor support 2, a bottom support 8, and a top support 9. The support rod 11 includes a rear wall 116 and two side walls (i.e., the first side wall 115 and the second side wall 119) extending forward from both sides of the rear wall 116. The rear surface of the rear wall 116 (i.e., the windward surface 111) is streamlined and arched towards the rear air inlet. The front surface of the rear wall 116 and the two side walls (i.e., the first side wall 115 and the second side wall 119) form a mounting groove 114. The fixed support 12 includes two mounting arms 241, each mounting arm 241 being embedded and fixed in a mounting groove 114. Thus, the heat source unit of this embodiment has a streamlined arched windward surface 111, which can reduce turbulence and pressure resistance, allowing airflow to flow more smoothly over the windward surface 111. This can reduce the wind resistance of the fan bracket 1, thereby reducing the noise when the motor 4 drives the impeller 5 to rotate and increasing the airflow.

[0028] In some exemplary embodiments, such as Figures 5 to 9As shown, the outer casing 6 encloses a space for installing a heat exchanger 7 and a fan. Specifically, the chassis 61, top cover 62, front cover 63, rear cover 64, and two side covers 65 together form the aforementioned space. The front-to-back, vertical, and lateral directions are mutually perpendicular. The front cover 63 and rear cover 64 can be arranged at intervals in the front-to-back direction and are located at the front and rear sides of the front-to-back direction, respectively. The chassis 61 and top cover 62 can be arranged at intervals in the vertical direction and are located at the upper and lower sides of the vertical direction, respectively. The two side covers 65 can be arranged at intervals in the lateral direction. The lateral direction can be left-to-right, with one side being left and the other right. In the vertical direction, one side can be upper and the other lower. In the front-to-back direction, one side can be front and the other rear. The heat source heat exchanger 7 can be an evaporator consisting of heat exchange plates and heat exchange tubes. The heat source heat exchanger 7 can be fixed on the chassis 61. The first heat exchange section 71 can be the part of the heat source heat exchanger 7 located between the rear air inlet 66 and the air outlet 67. A fan is located between the first heat exchange section 71 and the air outlet 67. The fan can include a fan wheel 5 and a motor 4. The fan wheel 5 can be mounted on the motor shaft of the motor 4. The fan wheel 5 can be driven by the motor 4. When the fan wheel 5 rotates, it can generate airflow. The generated airflow can pass sequentially through the rear air inlet 66, the heat source heat exchanger 7, the fan wheel 5, and the air outlet 67, thereby carrying away the heat from the first heat exchange section 71. Multiple fans can be provided, and the multiple fans can be arranged at intervals in the vertical direction. In this example, there can be two fans, but it is not limited to this. For example, there can be only one fan.

[0029] In some exemplary embodiments, such as Figures 5 to 9 As shown, the motor 4 is fixed inside the housing 6 by the fan bracket 1. The fan bracket 1 includes two support rods 11 and can include three types of fixing supports 12: a first type of fixing support 12 can be a motor support 2, a second type of fixing support 12 can be a bottom support 8, and a third type of fixing support 12 can be a top support 9. There is one bottom support 8 and one top support 9. The bottom support 8 fixes the bottom of the two support rods 11, and the top support 9 fixes the top of the two support rods 11. The bottom support 8 and the top support 9 are arranged at intervals in the vertical direction. The motor support 2 can be used to fix the motor 4. The motor support 2 is located between the bottom support 8 and the top support 9. There can be two motor supports 2, arranged at intervals in the vertical direction. The number of motor supports 2 is not limited to two, but it needs to match the number of motors 4; for example, it can be one.

[0030] In some exemplary embodiments, such as Figures 5 to 10As shown, two support rods 11 are provided, and the two support rods 11 are arranged at intervals in the lateral direction. The support rods 11 can be sheet metal parts, that is, they can be formed by sheet metal stamping. The cross-section of the support rods 11 can be U-shaped, and the space enclosed by the support rods 11 forms a mounting groove 114 with one end open. The opening of the mounting groove 114 can face the leeward side of the support rod 11. The support rod 11 can include a bottom wall 116 and two side walls, which can be a first side wall 115 and a second side wall 119. The bottom wall 116 of the support rod 11 protrudes outward in a V-shape, and the outer wall surface of the bottom wall 116 of the U-shaped support rod 11 forms a windward surface 111. The outer wall surface or outer surface of the bottom wall 116 can be the end face of the bottom wall 116 facing away from the mounting groove 114, and the inner wall surface or inner surface of the bottom wall 116 can be the end face of the bottom wall 116 facing the mounting groove 114. Therefore, the support rod 11 is U-shaped as a whole, and the bottom wall 116 of the support rod 11 is V-shaped, which makes the support rod 11 easy to manufacture, lightweight, low cost, high structural strength, and can also reduce wind resistance.

[0031] In some exemplary embodiments, such as Figures 5 to 10 As shown, the windward surface 111 may include a first windward surface 112, a second windward surface 113, and an intermediate connecting surface 118. One end of the first windward surface 112 and one end of the second windward surface 113 are smoothly connected through the intermediate connecting surface 118 (i.e., one end of the first windward surface 112 and one end of the intermediate connecting surface 118 are smoothly connected, and one end of the second windward surface 113 and the other end of the intermediate connecting surface 118 are smoothly connected). Along the direction of airflow, the first windward surface 112 and the second windward surface 113 gradually move away from each other, making the windward surface 111 of the support rod 11 generally V-shaped. The streamlined V-shaped windward surface 111 of the support rod 11 on the windward side of the airflow reduces wind resistance.

[0032] In some exemplary embodiments, such as Figures 5 to 9 As shown, the first windward surface 112 and the second windward surface 113 are planar surfaces, and the intermediate connecting surface 118 is an arc-shaped surface. One end of the first windward surface 112 and the intermediate connecting surface 118 are tangent to achieve a smooth connection between them, and one end of the second windward surface 113 and the other end of the intermediate connecting surface 118 are tangent to achieve a smooth connection between them.

[0033] In some exemplary embodiments, such as Figures 5 to 10 As shown, the included angle α between the first windward surface 112 and the second windward surface 113 is 30 degrees to 45 degrees. The smaller the included angle α between the first windward surface 112 and the second windward surface 113, the lower the wind resistance, but this will result in poor structural strength and high cost of the support rod 11. Therefore, in this embodiment, considering various factors such as wind resistance, structural strength, and cost, the included angle α between the first windward surface 112 and the second windward surface 113 is set to 30 degrees to 45 degrees.

[0034] It should be understood that the shape of the first windward surface 112 and the second windward surface 113 is not limited to a plane, but can also be other shapes, such as an arc surface; the included angle α between the first windward surface 112 and the second windward surface 113 is not limited to 30 degrees-45 degrees, and can be adjusted according to actual needs in practical applications.

[0035] In some exemplary embodiments, such as Figures 5 to 10 As shown, the second sidewalls 119 of the two support rods 11 are arranged opposite to each other, that is, the second sidewall 119 of any support rod 11 is close to the other support rod 11, and the first sidewall 115 of any support rod 11 is far away from the other support rod 11.

[0036] In some exemplary embodiments, such as Figures 5 to 10 As shown, the first sidewall 115 of the support rod 11 is provided with multiple limiting grooves 117, which are formed by recessing the end face of the first sidewall 115 facing the mounting groove 114. Thus, the groove wall of the mounting groove 114 forms the limiting groove 117, which is formed by recessing the inner surface of the sidewall. Each limiting groove 117 is provided with a fixing hole 13 for a fastener to pass through in the lateral direction; the fastener can be a screw 3. The multiple limiting grooves 117 can be arranged at intervals in the vertical direction. The limiting grooves 117 can extend in the front-rear direction, the groove depth of the limiting groove 117 can be consistent with the lateral direction, and the groove width of the limiting groove 117 can be the dimension of the limiting groove 117 in the vertical direction. One end of the limiting groove 117 extends to the end of the sidewall away from the rear wall and is provided with an opening 1171 for the limiting protrusion to slide into, opening one end of the limiting groove 117. When the mounting arm is inserted into the mounting groove 114, the limiting protrusion of the mounting arm can slide into the limiting groove 117 through the opening 1171. The width of the limiting groove 117 is set to gradually decrease along the front-back direction from the opening 1171 toward the end of the limiting groove 117 near the rear wall 116, that is, the limiting groove 117 gradually narrows along the front-back direction from the opening 1171 toward the end of the limiting groove 117 near the rear wall 116.

[0037] In some exemplary embodiments, such as Figures 11 to 12As shown, the motor support 2 may include a motor frame 25. The two mounting arms 121 of the motor support 2 are configured as two first mounting arms 21, which are respectively connected to both ends of the motor frame 25. The motor frame 25 and the two first mounting arms 21 are integral components. The motor frame 25 has a central hole 251 for mounting the motor. The central hole 251 extends through the motor frame 25 in the front-rear direction, allowing the motor to be mounted aligned with the central hole 251. The motor frame 25 may have multiple pre-positioning portions 252 around the central hole 251 for positioning the motor. Each pre-positioning portion 252 may be a protrusion with a positioning bolt 255. In this example, four pre-positioning portions 252 are provided, evenly arranged around the central hole 251. In addition, the motor frame 25 has two folding plates 254 located at both ends in the vertical direction. Both folding plates 254 are provided with wire holes 253. The two wire holes 253 can be connected to the two ends of the center hole 251 in the vertical direction, and avoid the prepositioning part 252. The wire holes 253 can be used for motor wiring.

[0038] In some exemplary embodiments, such as Figures 11 to 12 As shown, the first mounting arm 21 can be a U-shaped bend 24. The bend 24 can include a side plate 241, a connecting plate 242, and an inner side plate 243 connected in sequence, forming a U-shape. The side plate 241, connecting plate 242, and inner side plate 243 are perpendicular to each other. The end of the inner side plate 243 near the front is connected to the motor frame 25, and the end of the inner side plate 243 near the rear is connected to one end of the connecting plate 242. The other end of the connecting plate 242 is connected to the side plate 241. The opening of the U-shape formed by the bend 24 faces forward. The side plate 241 is provided with a rivet nut 26, which penetrates the side plate 241 in the lateral direction. The rivet nut 26 can include a flange at one end and a fixing nut 23 connected to the flange. The rivet nut 26 can be fixed to the side plate 241 of the U-shaped bend 24 by riveting. The flange of the rivet nut 26 and the fixing nut 23 are located on both sides of the side plate 241 in the lateral direction. The flange of the rivet nut 26 forms a limiting protrusion 22, which is located on the side of the side plate 241 away from the motor frame 25. The fixing nut 23 is located within the space enclosed by the bent portion 24. Each first mounting arm 21 is provided with two rivet nuts 26, which are arranged at intervals in the vertical direction.

[0039] In some exemplary embodiments, such as Figures 11 to 14As shown, the two first mounting arms 21 of the motor support 2 are respectively placed in the mounting slots 114 of the two support rods 11, and the first mounting arms 21 can be connected to the first side plate 115 of the support rod 11. The first mounting arm 21 is provided with a limiting protrusion 22, which can cooperate with the limiting groove 117 provided on the support rod 11 to limit the motor support 2 and the support rod 11 for pre-assembly, so as to facilitate the final fixing of the motor support 2 and the support rod 11 of the support rod 11. When the support rod 11 is fixed to the motor support 2, the first mounting arm 21 of the motor support 2 can be placed in the mounting groove 114 of the support rod 11, and the upper limit protrusion 22 of the side plate 241 of the U-shaped bend 24 can be accommodated in the limiting groove 117 on the first side wall 115 of the mounting groove 114 of the U-shaped support rod 11. The flange (i.e., the limiting protrusion 22) of the fixing nut 23 can play a guiding and limiting role, so as to realize the limiting and pre-assembly of the motor support 2 and the support rod 11. At this time, the fixing nut 23 can be aligned with the fixing hole provided on the U-shaped support rod 11; then, the U-shaped support rod 11 and the fixing nut 23 can be fixed with screws 3, thereby realizing the fixing of the motor support 2 to the support rod 11.

[0040] In some exemplary embodiments, such as Figures 11 to 14 As shown, the screws 3 that fix the motor support 2 and the support rod 11 are installed perpendicular to the airflow direction and also perpendicular to the direction of the motor shaft of the motor 4. The screws 3 pass through the fixing holes, the limiting protrusions 22, and the side plate 241 provided on the support rod 11 in sequence, and are connected to the fixing nut 23. The motor support 2 can be connected to the two support rods 11 by four screws 3. Figures 1 to 4 In the illustrated scheme, the screws 3 that fix the motor support 2 and the support rod 11 are installed in a direction parallel to the direction of the motor shaft of the motor 4, and also parallel to the direction of the airflow. Figures 1 to 4 The technical solution shown has problems such as the motor support 2 being easy to fall off, the holes for fixing the screws 3 being difficult to align, and low assembly efficiency due to the lack of positioning between the motor support 2 and the motor bracket 1. In this embodiment, the four fixing nuts 23 on the motor support 2 and the four limiting grooves 117 on the motor bracket 1 are used for four-way (up and down and side directions) pre-positioning, so that the screws 3 can be quickly pre-positioned when fixed, resulting in high assembly efficiency.

[0041] In some exemplary embodiments, such as Figure 15 and Figure 16As shown, the bottom support 8 may include a base frame 82. The two mounting arms 121 of the bottom support 8 are configured as two second mounting arms 81, which are respectively connected to both ends of the base frame 82. The base frame 82 may include a bottom main plate 821 and a bottom mounting plate 822. The bottom main plate 821 and the bottom mounting plate 822 are perpendicular, and the two second mounting arms 81 can be integrally formed with the bottom main plate 821. The bottom mounting plate 822 has snap-fit ​​holes 823 and mounting holes 824 for connecting to the chassis. At the end of the bottom mounting plate 822 away from the bottom main plate 821, there is an arc-shaped contoured portion 825, which can match the rectangular structure on the chassis. The base frame 82 is provided with a through-hole 83 extending in the front-to-back direction. The through-hole 83 can be an elongated hole extending in the lateral direction, allowing airflow to pass through and reducing the obstruction of airflow by the base frame 82. The base frame 82 is provided with reinforcing ribs 84 to enhance its strength. The reinforcing ribs 84 may be protrusions extending in the lateral direction. Multiple air vents 83 and multiple reinforcing ribs 84 may be provided. Multiple air vents 83 and multiple reinforcing ribs 84 may be arranged alternately in the vertical direction, but are not limited to this. For example, one of the air vents 83 and the reinforcing ribs 84 may be one, and the other may be multiple.

[0042] In some exemplary embodiments, such as Figure 15 and Figure 16 As shown, the second mounting arm 81 can have the same structure as the first mounting arm and includes a U-shaped bend 24. The bend 24 may include a side plate 241, a connecting plate 242, and an inner side plate 243 connected in sequence, forming a U-shape. The side plate 241, connecting plate 242, and inner side plate 243 are perpendicular to each other. The end of the inner side plate 243 near the front is connected to the bottom main plate 821, and the end of the inner side plate 243 near the rear is connected to one end of the connecting plate 242. The other end of the connecting plate 242 is connected to the side plate 241. The opening of the U-shape formed by the bend 24 faces forward. At the same time, the bottom mounting plate 822 has folded edges at both ends on the sides, and the side plate 241 can be connected to the folded edges by the first bolt 85. The side plate 241 is provided with rivet nuts 26, which penetrate the side plate 241 in the lateral direction. The flange of the rivet nut 26 and the fixing nut 23 are respectively located on both sides of the side plate 241 in the lateral direction. The flange of the rivet nut 26 forms a limiting protrusion 22, which is located on the side of the side plate 241 away from the bottom main plate 821. The fixing nut 23 is located within the space enclosed by the bend 24. Each second mounting arm 81 is provided with two rivet nuts 26, which are arranged at intervals in the vertical direction. The bottom of the second mounting arm 81 is provided with a flange 86, one end of which is connected to the bottom of the side plate 241, and the other end extends towards the inner side plate 243.

[0043] In some exemplary embodiments, such as Figure 15 and Figure 16As shown, the two second mounting arms 81 of the bottom support 8 are respectively placed in the mounting grooves 114 of the two support rods 11, and the second mounting arms 81 can be connected to the first side plate 115 of the support rod 11. The second mounting arm 81 is provided with a limiting protrusion 22, which can cooperate with the limiting groove 117 provided on the support rod 11 to limit the bottom support 8 and the support rod 11 for pre-assembly, so as to facilitate the final fixing of the bottom support 8 and the support rod 11 of the support rod 11. When the support rod 11 is fixed to the bottom support 8, the second mounting arm 81 of the bottom support 8 can be placed in the mounting groove 114 of the support rod 11, and the upper limit protrusion 22 of the side plate 241 of the U-shaped bend 24 is accommodated in the limiting groove 117 on the first side wall 115 of the mounting groove 114 of the U-shaped support rod 11. The flange of the fixing nut 23 (i.e., the limiting protrusion 22) can play a guiding and limiting role, so as to realize the limiting and pre-assembly of the bottom support 8 and the support rod 11. At this time, the fixing nut 23 can be aligned with the fixing hole provided on the U-shaped support rod 11; then, the U-shaped support rod 11 and the fixing nut 23 can be fixed with screws, and the bottom mounting plate 822 and the chassis 61 can be connected, thereby realizing the installation of the bottom support 8. The flange 86 can be located at one end of the mounting groove 114 near the chassis 61 to prevent impurities or water on the chassis 61 from entering the mounting groove 114.

[0044] In some exemplary embodiments, such as Figure 17 and Figure 18 As shown, the top support 9 may include a top frame 92. The two mounting arms 121 of the top support 9 are configured as two third mounting arms 91, which can be respectively connected to the bottom of the top frame 92. The top frame 92 may include a top main board 921, a front connecting portion 922, and a rear connecting portion 923. The top frame 92 and the two third mounting arms 91 may be integrally formed. The front connecting portion 922 and the rear connecting portion 923 may be located at opposite ends of the top main board 921 in the front-rear direction.

[0045] In some exemplary embodiments, such as Figure 17 and Figure 18As shown, the third mounting arm 91 may have the same structure as the first mounting arm and includes a U-shaped bend 24. The bend 24 may include a side plate 241, a connecting plate 242, and an inner side plate 243 connected in sequence, forming a U-shape. The side plate 241, connecting plate 242, and inner side plate 243 are perpendicular to each other. One end of the inner side plate 243 near the rear is connected to one end of the connecting plate 242, and the other end of the connecting plate 242 is connected to the side plate 241. The bottom of the side plate 241 is connected to the top main plate 921, and the opening of the U-shape formed by the bend 24 faces forward. The side plate 241 is provided with rivet nuts 26, which penetrate the side plate 241 in the lateral direction. The flange of the rivet nut 26 and the fixing nut 23 are respectively located on both sides of the side plate 241 in the lateral direction. The flange of the rivet nut 26 forms a limiting protrusion 22, which is located on the side of the side plate 241 away from the inner side plate 243. The fixing nut 23 is located within the space enclosed by the bend 24. Each third mounting arm 91 is provided with two rivet nuts 26, which are arranged at intervals in the vertical direction.

[0046] In some exemplary embodiments, such as Figure 17 and Figure 18 As shown, the two third mounting arms 91 of the top support 9 are respectively placed in the mounting slots 114 of the two support rods 11, and the third mounting arms 91 can be connected to the first side plate 115 of the support rod 11. The third mounting arm 91 is provided with a limiting protrusion 22, which can cooperate with the limiting groove 117 provided on the support rod 11 to limit the top support 9 and the support rod 11 for pre-assembly, so as to facilitate the final fixing of the top support 9 and the support rod 11 of the support rod 11. When the support rod 11 is fixed to the top support 9, the third mounting arm 91 of the top support 9 can be placed in the mounting groove 114 of the support rod 11, and the upper limit protrusion 22 of the side plate 241 of the U-shaped bend 24 can be accommodated in the limiting groove 117 on the first side wall 115 of the mounting groove 114 of the U-shaped support rod 11. The flange of the fixing nut 23 (i.e., the limiting protrusion 22) can play a guiding and limiting role, so as to realize the limiting and pre-assembly of the top support 9 and the support rod 11. At this time, the fixing nut 23 can be aligned with the fixing hole provided on the U-shaped support rod 11; then, the U-shaped support rod 11 and the fixing nut 23 can be fixed with screws, and the front connecting part 922 of the top frame 92 can be connected to the front cover plate, and the rear connecting part 923 of the top frame 92 can be connected to the heat source heat exchanger, thereby realizing the installation of the top support 9.

[0047] In some exemplary embodiments, the top support 9, the motor support 2, and the bottom support 8 can all be connected to two support rods 11 via mounting arms 121, thereby assembling the fan bracket 1. Furthermore, the windward surface 111 of the support rods 11 can reduce wind resistance. Experiments have shown that the fan bracket 1 of this embodiment can reduce noise by approximately 0.5 dB and increase airflow by approximately 1.5%, thus solving the problems of significant noise impact and minimal contribution to airflow in traditional fan brackets 1.

[0048] This application provides an air conditioner including a heat source unit as described in any of the above embodiments. The air conditioner possesses all the advantages of the heat source unit provided in any of the above embodiments, which will not be repeated here. It should be understood that the fan bracket 1 can be used not only in heat source units but also in other products with fans.

[0049] In the description of this invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "square structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0051] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and changes to the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection of this invention shall still be defined by the appended claims.

Claims

1. A heat source unit, characterized in that, include: The outer casing includes a chassis, a top cover, a front cover and a rear cover located between the chassis and the top cover, and two side covers in the lateral direction, wherein the rear cover forms a rear air inlet and the front cover forms an air outlet; A heat source heat exchanger exchanges heat with an external heat source. The heat source heat exchanger includes a first heat exchange section, which is installed on the rear side of the chassis and is arranged opposite to the rear air inlet. A fan bracket is disposed between the first heat exchange section and the air outlet. The fan bracket includes two support rods spaced apart laterally, and at least one fixed support installed between the two support rods. The fixed support is any one of a motor support, a bottom support, and a top support. The support rod includes a rear wall and two side walls extending forward from both sides of the rear wall. The rear surface of the rear wall is streamlined and arched towards the rear air inlet. The front surface of the rear wall and the two side walls form a mounting groove. The fixed support includes two mounting arms, each of which is embedded and fixed in a mounting slot.

2. The heat source unit according to claim 1, characterized in that, The mounting groove has at least one limiting groove in its wall, which is formed by a recess in the inner surface of the side wall. The mounting arm is provided with a limiting protrusion, which is inserted into the limiting groove to position the mounting arm within the mounting groove.

3. The heat source unit according to claim 2, characterized in that, The mounting arm includes a side plate and a fixing nut, and the limiting protrusion and the fixing nut are respectively disposed on both sides of the side plate in the lateral direction; The limiting groove is provided with a fixing hole for the fastener to pass through in the lateral direction. The fastener passes through the fixing hole, the limiting protrusion and the side plate in the lateral direction in sequence, and is connected to the fixing nut.

4. The heat source unit according to claim 3, characterized in that, The mounting arm also includes an inner side plate and a connecting plate, the inner side plate and the side plate being spaced apart in the lateral direction, and one end of the inner side plate and the side plate being respectively connected to the two ends of the connecting plate in the lateral direction; The fixing nut is located between the inner side plate and the side plate, and the limiting protrusion is located on the side plate away from the inner side plate in the lateral direction.

5. The heat source unit according to claim 2, characterized in that, The two mounting arms are arranged at intervals in the lateral direction. Each mounting arm is provided with a plurality of limiting protrusions, and the plurality of limiting protrusions are arranged sequentially along the extension direction of the mounting arm. The limiting protrusion on any mounting arm is located on the side away from the other mounting arm in the lateral direction. The two sidewalls include a first sidewall and a second sidewall, the limiting groove is disposed on the first sidewall, and the first sidewall of any of the support rods is located on the side of the second sidewall that is laterally away from the other support rod.

6. The heat source unit according to claim 2, characterized in that, The limiting groove extends in the front-to-back direction, and one end of the limiting groove extends to the end of the side wall away from the rear wall and is provided with an opening for the limiting protrusion to slide into.

7. The heat source unit according to claim 6, characterized in that, The width of the limiting groove is set to gradually decrease along the front-to-back direction from the open opening toward the end of the limiting groove closer to the rear wall.

8. The heat source unit according to claim 4, characterized in that, The fixed support is configured as a motor support, and the two mounting arms are configured as two first mounting arms. The motor support includes a motor frame, and the two first mounting arms are respectively connected to both ends of the motor frame. The motor frame has a central hole for mounting the motor, and a plurality of pre-positioning portions located on the outer periphery of the central hole for positioning the motor.

9. The heat source unit according to claim 4, characterized in that, The fixed support is configured as a bottom support, and the two mounting arms are configured as two second mounting arms. The bottom support also includes a base frame, which is located between the two second mounting arms. The bottom of the two second mounting arms is provided with flanges, which are located at one end of the mounting groove near the chassis to prevent impurities or water on the chassis from entering the mounting groove.

10. The heat source unit according to claim 9, characterized in that, The base frame includes a bottom main board and a bottom mounting plate arranged vertically, and the bottom mounting plate is connected to the chassis. The inner side plates of the two second mounting arms are respectively connected to the two ends of the bottom main board in the lateral direction; The bottom mounting plate has folded edges at both ends in the lateral direction, and the side plates of the second mounting arm are correspondingly set with the folded edges and connected by fasteners.

11. The heat source unit according to claim 10, characterized in that, The bottom main board has multiple ventilation holes running through it in the front and back directions, and the ventilation holes are elongated holes extending in the lateral direction.

12. The heat source unit according to claim 11, characterized in that, The bottom main board has at least one reinforcing rib, which is configured as a convex bulge extending in the lateral direction.

13. The heat source unit according to claim 4, characterized in that, The fixed support is configured as a top support, and the two mounting arms are configured as two third mounting arms. The top support also includes a top frame, the bottom of which is connected to the top of the two third mounting arms respectively. The top frame has a front connecting part at one end in the front-rear direction and a rear connecting part at the other end. The front connecting part is connected to the front cover plate, and the rear connecting part is connected to the heat source heat exchanger.

14. The heat source unit according to any one of claims 1 to 13, characterized in that, The rear surface of the rear wall includes a first windward surface, a second windward surface, and an intermediate connecting surface, with one end of the first windward surface and one end of the second windward surface smoothly connected through the intermediate connecting surface. The first windward surface and the second windward surface are configured to gradually move away from each other along the front-to-back direction from the side closer to the rear air inlet to the side closer to the air outlet.

15. The heat source unit according to claim 14, characterized in that, The first windward surface and the second windward surface are planar, the intermediate connecting surface is an arc-shaped surface, and the included angle between the first windward surface and the second windward surface is 30 degrees to 45 degrees.

16. An air conditioner, characterized in that, Includes the heat source unit as described in any one of claims 1 to 15.

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