Air outlet structure of heat pump outdoor unit and heat pump unit

Abstract

The utility model belongs to the technical field of heat pump fans, and particularly relates to an air outlet structure of a heat pump outdoor unit and a heat pump unit. The air outlet structure of the heat pump outdoor unit comprises a supporting plate, an air inlet piece and an air guide piece. The supporting plate is used for being installed in a heat pump outdoor unit body, the supporting plate is provided with a first installation face and a second installation face which are oppositely arranged, and a communication opening is formed in the supporting plate. The air inlet piece is arranged on the first mounting surface, an air inlet of the air inlet piece faces the evaporator, and an air outlet of the air inlet piece communicates with the communicating opening; the air inlet end of the air guide piece is arranged on the second mounting face and communicates with the air inlet piece through the communicating opening, and the air outlet end of the air guide piece is used for communicating with the air outlet of the front housing. The air outlet structure of the heat pump outdoor unit and the heat pump unit are used for solving the problems that the air outlet structure of the heat pump outdoor unit cannot effectively improve the air volume, and the heat exchange efficiency is not high.

Description

Technical Field

[0001] This application belongs to the field of heat pump fan technology, specifically relating to the air outlet structure of a heat pump outdoor unit and a heat pump unit. Background Technology

[0002] The main function of a heat pump outdoor unit is to transfer heat from a low-temperature area to a high-temperature area through an internal circulation system. The heat pump outdoor unit typically draws in air from the evaporator side. The drawn-in air exchanges heat with the refrigerant in the evaporator. After heat exchange, the air passes through the air duct structure and the front cover in sequence, and is finally discharged from the grille on the front side of the heat pump outdoor unit.

[0003] In related technologies, the air outlet structure of a heat pump outdoor unit mainly includes a sheet metal duct, on which flanges can be installed to increase airflow. However, due to the physical limitations of sheet metal materials, the flanges of the sheet metal duct are often relatively short, resulting in a limited effect on increasing airflow.

[0004] Therefore, the existing air outlet structure of heat pump outdoor units cannot effectively increase air volume and has low heat exchange efficiency. Utility Model Content

[0005] This application provides an air outlet structure for a heat pump outdoor unit and a heat pump unit to solve the problems that the air outlet structure of a heat pump outdoor unit cannot effectively increase air volume and has low heat exchange efficiency.

[0006] In a first aspect, embodiments of this application provide an air outlet structure for a heat pump outdoor unit, comprising:

[0007] A support plate is used to be installed inside the heat pump outdoor unit body. The support plate has a first mounting surface and a second mounting surface that are arranged opposite to each other. A communication port is provided on the support plate.

[0008] An air inlet is disposed on the first mounting surface, the air inlet of the air inlet is directed toward the evaporator, and the air outlet of the air inlet is connected to the connecting port.

[0009] An air guide is provided, wherein the air inlet end of the air guide is disposed on the second mounting surface, the air inlet end of the air guide is connected to the air inlet component through the connecting port, and the air outlet end of the air guide is used to connect to the air outlet of the front cover.

[0010] In one possible design, the air guide includes a straight pipe section, a first flared section, and a second flared section;

[0011] The first flared section is disposed at the air inlet of the straight pipe section, and the end of the first flared section facing away from the straight pipe section is connected to the support plate;

[0012] The second flared section is located at the air outlet of the straight pipe section, and the end of the second flared section facing away from the straight pipe section is used to connect with the front cover.

[0013] In one possible design, the diameter of the first flared section decreases from the air inlet end of the air guide to the air outlet end of the air guide.

[0014] And / or, from the air inlet end of the air guide to the air outlet end of the air guide, the diameter of the second flared section increases.

[0015] In one possible design, from the air inlet end of the air guide to the air outlet end of the air guide, the length of the first flared section is not less than one-third of the length of the straight pipe section.

[0016] And / or, from the air inlet end of the air guide to the air outlet end of the air guide, the length of the second flared section is not less than one-third of the length of the straight pipe section.

[0017] In one possible design, the inner diameter of the end of the first flared section away from the straight pipe section is 1.1 to 1.5 times the inner diameter of the end of the first flared section facing the straight pipe section.

[0018] And / or, the inner diameter of the end of the second flared section away from the straight pipe section is 1.1 to 1.5 times the inner diameter of the end of the second flared section facing the straight pipe section.

[0019] In one possible design, a first abutting part is provided on the periphery of the air inlet end of the air guide, and the first abutting part abuts against the support plate.

[0020] The first abutting part is provided with a first fixing member, and the air guide is connected to the support plate through the first fixing member;

[0021] And / or, a second abutting part is provided on the periphery of the air outlet end of the air guide, the second abutting part being used to abut against the front cover;

[0022] The second abutment portion is provided with a second fixing member, and the air guide is connected to the front cover through the second fixing member.

[0023] In one possible design, the first abutting part is further provided with a positioning part, the support plate is provided with a slot, and when the air guide is connected to the support plate, the positioning part is engaged with the slot.

[0024] In one possible design, the air intake component includes a motor, fan blades, and a mounting bracket;

[0025] The mounting bracket is connected to the support plate;

[0026] The motor is disposed inside the mounting bracket;

[0027] The fan blades are fixedly connected to the output shaft of the motor, and at least a portion of the fan blades are located inside the air guide.

[0028] In one possible design, the air inlet end of the mounting bracket is provided with a mesh structure, and the motor is connected to the mesh structure;

[0029] The mounting bracket has a mounting part at its air outlet end, and the mounting bracket is connected to the support plate through the mounting part.

[0030] Secondly, embodiments of this application provide a heat pump unit, including the air outlet structure of any of the above-mentioned heat pump outdoor units.

[0031] The air outlet structure of the heat pump outdoor unit and the heat pump unit provided in this application embodiment include a support plate, an air inlet component, and an air guide component. The support plate is used to install inside the heat pump outdoor unit body and has a first mounting surface and a second mounting surface arranged opposite to each other. A communication port is opened on the support plate. The air inlet component is disposed on the first mounting surface, and the air inlet of the air inlet component is used to face the evaporator. The air outlet of the air inlet component is connected to the communication port. The air inlet end of the air guide component is disposed on the second mounting surface and the air inlet end of the air guide component is connected to the air inlet component through the communication port. The air outlet end of the air guide component is used to connect to the air outlet of the front cover.

[0032] The support plate provides a stable mounting base for integrating the air inlet and air guide components, achieving a rational component layout within the heat pump outdoor unit. The air inlet and air guide components are located on both sides of the support plate and connected via a connecting port, optimizing the airflow path and promoting efficient airflow. The synergistic effect of the support plate, air inlet, and air guide components effectively reduces airflow resistance and interference, ensuring smooth airflow from the evaporator to the external environment. This design not only reduces eddies and turbulence but also increases the effective area of ​​airflow across the evaporator, thereby significantly improving airflow and overall heat exchange efficiency. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 An installation state diagram of the air outlet structure of the heat pump outdoor unit provided in the embodiments of this application;

[0035] Figure 2 for Figure 1 A schematic diagram of the air outlet structure of the heat pump outdoor unit from another perspective;

[0036] Figure 3for Figure 1 Schematic diagram of the connection structure between the central air intake and the support plate;

[0037] Figure 4 for Figure 1 Schematic diagram of the central air guide component;

[0038] Figure 5 for Figure 1 A schematic diagram of the central air guide component from another perspective;

[0039] Figure 6 for Figure 3 Enlarged view of section A;

[0040] Figure 7 for Figure 3 A schematic diagram of the mounting bracket.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100 - Support plate; 101 - Connecting port; 102 - Card slot; 103 - Slot;

[0043] 110 - First mounting surface;

[0044] 120 - Second mounting surface;

[0045] 200 - Air inlet component;

[0046] 210 - Electric motor;

[0047] 220-fan blade;

[0048] 230 - Mounting bracket; 231 - Space frame structure; 2311 - Support bar; 2312 - Support ring; 2313 - Connecting part; 2314 - Mounting part;

[0049] 300 - Air guide component;

[0050] 310 - Straight pipe section;

[0051] 320 - First flared section; 321 - First abutting part; 3211 - First fastener; 3212 - Positioning part;

[0052] 330 - Second flared section; 331 - Second abutting part; 3311 - Second fastener;

[0053] 70 - Heat pump outdoor unit body;

[0054] 80 - Evaporator;

[0055] 90 - Front cover; 901 - Air outlet.

[0056] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0059] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0060] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0061] Unless otherwise stated, the term "multiple" means two or more.

[0062] As can be seen from the background technology, in related technologies, the air outlet structure of heat pump outdoor units mostly adopts sheet metal air ducts. That is, through the forming process of sheet metal materials, an air duct structure that guides airflow is constructed.

[0063] To increase airflow, flanges can be installed at the edges of the sheet metal air duct. These flanges increase the effective flow area of ​​the air duct, reducing airflow resistance and allowing more air to pass through the evaporator for heat exchange, thereby improving overall heat exchange efficiency.

[0064] However, in practical applications, due to the physical properties of sheet metal materials, such as ductility, strength, and processing costs, the size of the flange is often limited to a relatively short range. This means that although the flange improves the shape of the air duct to some extent, its contribution to increasing airflow is limited and cannot significantly increase air circulation.

[0065] Furthermore, a shorter flange length may lead to uneven airflow inside the duct, especially in the area where the flange connects to the straight pipe section, where eddies and turbulence are prone to occur. This not only increases the resistance to airflow but may also reduce heat exchange efficiency.

[0066] In addition, in related technologies, the outdoor unit of a heat pump air conditioner uses a motor bracket to mount the motor and fan blades, with the motor bracket fixed to the chassis of the entire unit.

[0067] In this design, the width of the motor bracket needs to be greater than the width of the motor to ensure stable fixation. As the motor power increases, the size of the motor and its bracket also increases, which will block more of the evaporator area.

[0068] Because the motor bracket obstructs the evaporator, it limits the effective area for air circulation, reduces the amount of air actually involved in heat exchange, and thus reduces the air volume output.

[0069] Furthermore, there is a lack of good coordination between the motor bracket and the air duct structure. The air duct structure is not fully utilized to optimize the airflow path, and the negative impact of the motor bracket on the evaporator air intake efficiency is not effectively resolved, resulting in low overall heat exchange efficiency.

[0070] To address the aforementioned issues, this application provides an air outlet structure for a heat pump outdoor unit and a heat pump unit. The air outlet structure of the heat pump outdoor unit includes a support plate, an air inlet component, and an air guide component. The support plate is installed within the heat pump outdoor unit body.

[0071] The support plate provides a stable installation base, which can integrate the air inlet and air guide components. The air inlet and air guide components are distributed on both sides of the support plate and are connected through the connection port, which can realize a reasonable component layout inside the heat pump outdoor unit.

[0072] The air inlet is mounted on the support plate, and the air inlet of the air inlet faces the evaporator. This reduces obstruction to the evaporator, ensures that air can be effectively drawn in from the evaporator, reduces airflow interference and eddy currents, thereby increasing the effective area of ​​airflow through the evaporator and enhancing heat exchange efficiency.

[0073] The air guide is installed on the support plate, and the air outlet of the air guide is connected to the air outlet of the front cover. It can guide the air to flow out from the other side of the support plate and finally be discharged through the air outlet of the front cover. This optimizes the air flow path, reduces air flow resistance, ensures the continuity and smoothness of the air flow path, and increases the air volume.

[0074] Specifically, the air outlet structure of the heat pump outdoor unit provided in this application embodiment optimizes the airflow path through the synergistic effect of the support plate, air inlet component, and air guide component, effectively reducing resistance and interference in airflow, ensuring that air can flow smoothly from the evaporator to the external environment, and improving air volume and overall heat exchange efficiency.

[0075] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0076] Figure 1 An installation state diagram of the air outlet structure of the heat pump outdoor unit provided in the embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the air outlet structure of the heat pump outdoor unit from another perspective;

[0077] Figure 3 for Figure 1 Schematic diagram of the connection structure between the central air intake and the support plate.

[0078] Combination Figures 1 to 3 As shown, one embodiment of this application provides an air outlet structure for a heat pump outdoor unit, including a support plate 100, an air inlet component 200, and an air guide component 300.

[0079] Understandably, the core of a heat pump outdoor unit's operation is to use air as a heat transfer medium to exchange heat with the refrigerant within the evaporator 80.

[0080] Specifically, the outdoor unit of the heat pump mainly draws in outside air from the evaporator 80 side through a fan. The drawn-in air exchanges heat with the refrigerant in the evaporator 80. The refrigerant absorbs heat from the air and evaporates. After the heat exchange, the air temperature rises (or falls, depending on the air conditioner's operating mode), and then is discharged from the front grille through the air duct and the front cover 90.

[0081] The efficiency of heat transfer is closely related to the temperature difference between air and refrigerant, the contact area, and the airflow speed (i.e., air volume).

[0082] Given a constant temperature difference and contact area, the airflow rate determines the rate of heat exchange between the air and the refrigerant. A larger airflow rate means more air passes through the evaporator per unit time, resulting in more heat being carried away and higher heat exchange efficiency.

[0083] The airflow rate also affects the airflow pattern inside the heat pump's outdoor unit. When the airflow is low, the airflow may not be smooth enough, and eddies and turbulence may easily occur. This not only increases flow resistance but also reduces the efficiency of heat transfer.

[0084] In some embodiments, the support plate 100 is used to be installed inside the heat pump outdoor unit body 70. The support plate 100 has a first mounting surface 110 and a second mounting surface 120 that are disposed opposite to each other, and a communication port 101 is provided on the support plate 100.

[0085] It should be noted that the heat pump outdoor unit body 70 includes a housing, an evaporator 80 is located on the rear side of the housing, and a front cover 90 is located on the front side of the housing. The housing, evaporator 80 and front cover 90 enclose a receiving space. A support plate 100 is fixedly installed in the receiving space, and the support plate 100 can be arranged parallel to the front cover 90.

[0086] The support plate 100 can divide the accommodating space into a first installation area and a second installation area. The first installation area and the second installation area are connected by a connecting port 101. The first installation area is used to install the air inlet component 200, and the second installation area is used to install the air guide component 300.

[0087] The support plate 100 provides a stable mounting base, allowing the air inlet 200 and the air guide 300 to be integrated together. This integration not only facilitates the rational layout of the components but also ensures the stability and durability of the structure. The design of the connection port 101 allows air to flow smoothly from the air inlet 200 to the air guide 300, reducing airflow resistance.

[0088] In some embodiments, the air inlet 200 is disposed on the first mounting surface 110, the air inlet of the air inlet 200 is directed toward the evaporator 80, and the air outlet 901 of the air inlet 200 is connected to the communication port 101.

[0089] The air inlet 200 ensures that air can be effectively drawn into the evaporator 80 and enter the connection port 101 through the air outlet 901. This configuration optimizes the air inflow path, reduces airflow interference and turbulence, thereby increasing the effective area of ​​airflow through the evaporator 80 and enhancing heat exchange efficiency.

[0090] In some embodiments, the air inlet end of the air guide 300 is disposed on the second mounting surface 120, the air inlet end of the air guide 300 is connected to the air inlet 200 through the connecting port 101, and the air outlet end of the air guide 300 is used to connect to the air outlet 901 of the front cover 90.

[0091] The function of the air guide 300 is to guide air out from the other side of the support plate 100 and finally exhaust it through the air outlet 901 of the front cover 90. This arrangement ensures the continuity and smoothness of the airflow path and reduces the generation of turbulence and eddies. At the same time, the air guide 300 can further optimize the airflow path, reduce airflow resistance, and increase the air volume.

[0092] Specifically, the air outlet structure of the heat pump outdoor unit provided in this application embodiment optimizes the airflow path through the synergistic effect of the support plate 100, the air inlet component 200, and the air guide component 300. The support plate 100 provides a stable mounting base, while the air inlet component 200 and the air guide component 300 achieve efficient airflow through the connecting port 101. This arrangement effectively reduces airflow resistance and interference, ensuring smooth airflow from the evaporator 80 to the external environment. Ultimately, this optimized air outlet structure not only reduces eddies and turbulence but also significantly increases the effective area of ​​airflow across the evaporator 80, thereby improving airflow and overall heat exchange efficiency.

[0093] Figure 4 for Figure 1 A schematic diagram of the central air guide component. (Combined with...) Figure 4 As shown, in some embodiments, the air guide 300 includes a straight pipe section 310.

[0094] It should be noted that from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, that is, in Figure 4 In the direction indicated by the middle arrow, the inner diameter of the straight pipe section 310 remains unchanged.

[0095] As the main channel of the air guide 300, the straight duct section 310 provides a relatively stable and low-resistance airflow path. By reducing the tortuosity of the airflow, the straight duct section 310 helps maintain the speed and direction of the airflow, reduces the generation of turbulence and eddies, and thus improves the efficiency of the airflow.

[0096] In some embodiments, the air guide 300 includes a first flared section 320. The first flared section 320 is disposed at the air inlet of the straight pipe section 310, and one end of the first flared section 320 opposite to the straight pipe section 310 is connected to the support plate 100.

[0097] The first flared section 320 helps to smoothly guide air from the connection port 101 of the support plate 100 into the straight pipe section 310. The shape of the flared section reduces resistance and turbulence when air enters, ensuring smooth and stable airflow. This arrangement optimizes the transition of air from the air inlet 200 to the air guide 300, improving airflow efficiency.

[0098] The first flared section 320 can be a chamfer located at the air inlet of the straight pipe section 310, and the chamfer angle can be 30° to 60°.

[0099] For example, the chamfer angle can be 45°.

[0100] In some embodiments, the air guide 300 includes a second flared section 330. The second flared section 330 is disposed at the air outlet 901 of the straight pipe section 310, and the end of the second flared section 330 facing away from the straight pipe section 310 is used to connect to the front cover 90.

[0101] The second flared section 330 smoothly guides air from the straight section 310 to the outlet 901 of the front casing 90. This flared design effectively reduces air resistance and turbulence during outflow. This not only helps maintain the speed and direction of airflow but also increases the air volume and improves overall heat exchange efficiency.

[0102] The second flared section 330 can be a chamfer located at the air inlet of the straight pipe section 310, with a chamfer angle of 30° to 60°.

[0103] For example, the chamfer angle can be 45°.

[0104] Specifically, the air outlet structure of the heat pump outdoor unit provided in this application embodiment optimizes the airflow path by setting a straight pipe section 310, a first flared section 320 and a second flared section 330 in the air guide 300. This not only helps to improve the efficiency of airflow but also helps to increase the air volume, thereby significantly improving the overall heat exchange efficiency.

[0105] In some embodiments, from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, that is, in Figure 4 In the direction indicated by the middle arrow, the diameter of the first flared section 320 decreases.

[0106] When air enters the air guide 300 from the air inlet, the gradually decreasing diameter increases the airflow velocity. This design enhances the kinetic energy of the air, increases the outlet air velocity, and thus increases the outlet air volume.

[0107] In some embodiments, from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, that is, in Figure 4In the direction indicated by the middle arrow, the diameter of the second flared section 330 increases.

[0108] As air flows towards the outlet, the gradually increasing diameter reduces the airflow speed. This design reduces turbulence and eddies, decreases airflow resistance, and creates a smoother flow path, ensuring stable and smooth airflow. This helps reduce noise at the outlet of the air guide 300 while improving airflow efficiency and heat exchange efficiency.

[0109] Specifically, by controlling the diameters of the first flared section 320 and the second flared section 330, the air guide 300 can effectively control the speed and pressure distribution of the airflow. A smaller diameter of the first flared section 320 increases the kinetic energy and airflow volume upon entry; a larger diameter reduces resistance and turbulence upon exit. This configuration optimizes the airflow path and improves airflow efficiency and overall heat exchange efficiency.

[0110] In some embodiments, from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, that is, in Figure 4 In the direction indicated by the middle arrow, the length of the first flared section 320 is not less than one-third of the length of the straight section 310.

[0111] This design ensures that the first flare section 320 has sufficient length, allowing ample space for air to adjust its speed and pressure when entering the air guide 300.

[0112] In some embodiments, from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, that is, in Figure 4 In the direction indicated by the middle arrow, the length of the second flared section 330 is not less than one-third of the length of the straight section 310.

[0113] This design ensures that the second flare section 330 has sufficient length, allowing ample space for air to adjust its speed and pressure as it flows out of the air guide 300.

[0114] Specifically, by controlling the ratio of the lengths of the first flared section 320 and the second flared section 330 to the length of the straight pipe section 310, the air guide 300 can more effectively control the speed and pressure distribution of airflow.

[0115] The longer flared section provides ample space for airflow adjustment, reducing turbulence and eddies, and improving airflow efficiency and overall heat exchange efficiency. This design ensures stable and smooth airflow, significantly enhancing the performance of the heat pump outdoor unit.

[0116] In some embodiments, the inner diameter of the end of the first flared section 320 away from the straight pipe section 310 is 1.1 to 1.5 times the inner diameter of the end of the first flared section 320 facing the straight pipe section 310.

[0117] By designing the inner diameter ratio of the first flared section 320, air can be gradually accelerated as it enters the guide vane 300. This reduction in inner diameter helps increase the kinetic energy of the air, improving the outlet velocity and air volume. An appropriate ratio range ensures optimized airflow without causing excessive velocity loss or pressure imbalance.

[0118] In some embodiments, the inner diameter of the end of the second flared section 330 away from the straight pipe section 310 is 1.1 to 1.5 times the inner diameter of the end of the second flared section 330 facing the straight pipe section 310.

[0119] By designing the inner diameter ratio of the second flared section 330, air can gradually slow down as it flows out of the guide vane 300. This increased inner diameter helps to smoothly guide airflow, reducing turbulence and eddies, thereby improving the stability and efficiency of airflow. An appropriate ratio range ensures optimized airflow without excessively increasing resistance or causing flow instability.

[0120] Figure 5 for Figure 1 A schematic diagram of the central air guide component from another perspective. (Combined with...) Figures 1 to 5 As shown, in some embodiments, the air guide 300 has a first abutting part 321 on the periphery of the air inlet end, and the first abutting part 321 abuts against the support plate 100; the first abutting part 321 is provided with a first fixing member 3211, and the air guide 300 is connected to the support plate 100 through the first fixing member 3211.

[0121] The first abutment portion 321 is annular and parallel to the support plate 100. The first abutment portion 321 provides a physical contact surface to ensure that the air guide 300 can fit well with the support plate 100, so as to prevent air leakage at the connection between the first abutment portion 321 and the support plate 100, which would affect the air volume or generate noise.

[0122] For example, the first fixing member 3211 may be a connecting ear provided on the first abutting part 321. The connecting ear has a screw hole. Correspondingly, the support plate 100 also has a screw hole at the position corresponding to the first fixing member 3211. The first fixing member 3211 and the support plate 100 can be fixedly connected by screws, thereby realizing the connection between the air guide 300 and the support plate 100.

[0123] In some embodiments, a second abutment portion 331 is provided on the periphery of the air outlet end of the air guide 300, the second abutment portion 331 is used to abut against the front cover 90; the second abutment portion 331 is provided with a second fixing member 3311, and the air guide 300 is connected to the front cover 90 through the second fixing member 3311.

[0124] The second abutment portion 331 is annular and parallel to the front cover 90. The second abutment portion 331 provides a physical contact surface to ensure that the air guide 300 can fit well with the front cover 90, so as to prevent air leakage at the connection 2313 between the second abutment portion 331 and the front cover 90, which would affect the air volume or generate noise.

[0125] For example, the second fixing member 3311 may be a connecting ear provided on the second abutment portion 331. The connecting ear has a screw hole. Correspondingly, the front cover 90 and the second fixing member 3311 are also provided with screw holes at the corresponding positions. The second fixing member 3311 and the front cover 90 can be fixedly connected by screws, thereby realizing the connection between the air guide 300 and the front cover 90.

[0126] The number of first fasteners 3211 and second fasteners 3311 are both multiple, with multiple first fasteners 3211 evenly distributed around the first abutting portion 321; and multiple second fasteners 3311 evenly distributed around the second abutting portion 331.

[0127] For example, the air guide 300 can be a plastic part. By utilizing the easy processing and molding flexibility of plastic materials, designers can more freely design the geometry of the air guide 300. In addition, plastic materials also have advantages such as light weight and corrosion resistance. Using plastic as the material for the air guide 300 can significantly reduce the weight of the entire component, thereby reducing the requirements for the support structure and improving the ease of installation and maintenance.

[0128] Figure 6 for Figure 3 An enlarged view of part A in the middle. Combined with... Figures 4 to 6 As shown, in some embodiments, the first abutment portion 321 is also provided with a positioning portion 3212, and the support plate 100 is provided with a slot 102. When the air guide 300 is connected to the support plate 100, the positioning portion 3212 is engaged in the slot 102.

[0129] Understandably, the positioning part 3212 provides a positioning structure to ensure that the air guide 300 can be accurately aligned with the installation position on the support plate 100 during installation, so as to ensure that the air guide 300 is installed in the correct position.

[0130] The slot 102 provides a groove structure for receiving the positioning part 3212. When the positioning part 3212 is engaged in the slot 102, the air guide 300 can be initially fixed with the support plate 100, and the air guide 300 can be positioned on the support plate 100 so as to make a fixed connection between the first fixing part 3211 and the support plate 100.

[0131] For example, the positioning part 3212 may be a protrusion provided on the side of the first abutting part 321 away from the straight pipe section 310, and the protrusion is provided with a snap-fit ​​part, which may be arranged parallel to the first abutting part 321.

[0132] The support plate 100 is also provided with a slot 103 that communicates with the card slot 102. The shape of the slot 103 is adapted to the shape of the card connector, and the shape of the card slot 102 is adapted to the shape of the protrusion.

[0133] During installation, the positioning part 3212 can be aligned with the slot 103, and the positioning part 3212 can be inserted into the slot 103. Then, the air guide 300 can be rotated so that the protrusion and the locking part are aligned with the slot 102. At this time, the protrusion is located in the slot 102, the locking part can abut against the first mounting surface 110 of the support plate 100, and the slot 102 can restrict the locking part from coming out, thereby realizing the locking of the positioning part 3212 and the slot 102.

[0134] Combination Figure 3 As shown, in some embodiments, the air inlet 200 includes a motor 210, a fan blade 220, and a mounting bracket 230; the mounting bracket 230 is connected to the support plate 100; the motor 210 is disposed inside the mounting bracket 230; the fan blade 220 is fixedly connected to the output shaft of the motor 210, and at least a portion of the fan blade 220 is located inside the air guide 300.

[0135] Understandably, the motor 210 provides power to drive the fan blades 220 to rotate, and the rotation of the fan blades 220 can drive the airflow.

[0136] Mounting bracket 230 is mounted on support plate 100. Mounting bracket 230 can provide mounting base and mounting space for motor 210 and fan blade 220, so that the position of motor 210 and fan blade 220 corresponds to the position of air guide 300, thereby optimizing the air flow path and improving air flow efficiency.

[0137] Placing the motor 210 inside the mounting bracket 230 helps protect the motor 210 from external environmental influences while saving space. The fan blade 220 is fixedly connected to the output shaft of the motor 210, ensuring that the fan blade 220 can effectively convert the rotational motion of the motor 210 into airflow.

[0138] Placing the fan blades 220 inside the air guide 300 helps optimize the airflow path and reduce turbulence and eddies. This design ensures that air flows smoothly from the air inlet 200 to the air guide 300, improving airflow efficiency and overall heat exchange efficiency.

[0139] For example, from the air inlet end of the air guide 300 to the air outlet end of the air guide 300, two-thirds of the width of the fan blade 220 is located within the air guide 300.

[0140] Figure 7 for Figure 3 A schematic diagram of the mounting bracket. (Combined with...) Figure 3 and Figure 7 As shown, in some embodiments, the air inlet end of the mounting bracket 230 is provided with a mesh structure 231, and the motor 210 is connected to the mesh structure 231.

[0141] The space frame structure 231 includes multiple support rings 2312 and support bars 2311 disposed at the air inlet end of the mounting bracket 230. The multiple support rings 2312 are coaxially arranged and connected together by the support bars 2311. Two adjacent support bars 2311 and two adjacent support rings 2312 can form multiple flow openings for free airflow.

[0142] Multiple support bars 2311 are spaced apart on the circumference of the support ring 2312. The first end of the support bar 2311 is connected to the support ring 2312 located on the innermost side of the grid structure 231. The first end of the support bar 2311 is provided with a connecting part 2313. The motor 210 is fixedly connected to the connecting part 2313.

[0143] The grid structure 231 can stably fix the motor 210 while allowing air to flow freely. It will not cause large-area obstruction to the evaporator 80, ensuring smooth airflow and improving the air volume and heat exchange efficiency of the evaporator 80.

[0144] For example, the support ring 2312 and the support strip 2311 can be made of iron wire. The support ring 2312 and the support strip 2311 can be manufactured by welding, which is a simple manufacturing method. In addition, the iron wire is thin and light, which is less likely to cause problems such as wind obstruction and blockage of the evaporator 80, and will not deform due to its own weight.

[0145] In some embodiments, the air outlet end of the mounting bracket 230 is provided with a mounting part 2314, and the mounting bracket 230 is connected to the support plate 100 through the mounting part 2314.

[0146] For example, the entire mounting bracket 230 is a grid structure 231. Multiple support rings 2312 can be distributed at intervals from the air inlet end of the mounting bracket 230 to the air outlet end of the mounting bracket 230, and the multiple support rings 2312 are coaxially arranged. Multiple support bars 2311 are distributed at intervals in the circumferential direction of the support rings 2312. The second end of the support bar 2311 extends towards the air outlet end of the mounting bracket 230, and the second end of the support bar 2311 is connected to the support ring 2312 located at the air outlet end of the mounting bracket 230.

[0147] The mounting part 2314 is provided at the second end of the support bar 2311. The support plate 100 has mounting holes at positions corresponding to the mounting part 2314. The mounting part 2314 can be fixed to the support plate 100 by means of screw connection or riveting.

[0148] The mounting bracket 230 can be coaxially arranged with the communication port 101 so that the motor 210 and fan blade 220 mounted on the mounting bracket 230 can also be coaxially arranged with the communication port 101.

[0149] For example, the distance between the peripheral edge of the fan blade 220 and the inner wall of the air guide 300 can be less than or equal to 5 mm.

[0150] By ensuring a uniform and small gap between the fan blade 220 and the inner wall of the air guide 300, it helps to increase the air volume at the same rotation speed, while reducing the noise at the same air volume.

[0151] Furthermore, the mounting bracket 230 is designed as a grid structure 231, which helps to reduce mold and material costs, reduce processing difficulty, and has strong molding flexibility, making it easy to adapt to different specifications of motors 210 and installation requirements. At the same time, it has a good support effect and can reduce the shaking phenomenon of fan blades 220.

[0152] In addition, the mounting bracket 230 is fixed to the support plate 100, which, compared to traditional fan brackets, avoids the problem of the motor 210 and fan bracket twisting when the fan blades 220 are running.

[0153] Another aspect of this application provides a heat pump unit, including the air outlet structure of the heat pump outdoor unit provided in any of the above embodiments.

[0154] The air outlet structure of the heat pump outdoor unit has been described in detail in the above embodiments and will not be repeated here.

[0155] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air outlet structure of a heat pump outdoor unit, characterized by comprising: The application relates to a support plate (100) for installation in a heat pump outdoor unit body (70), the support plate (100) having oppositely arranged first and second installation surfaces (110, 120), and a communication opening (101) being formed in the support plate (100); an air inlet member (200) is arranged on the first installation surface (110), an air inlet of the air inlet member (200) being used for directing air towards an evaporator (80), and an air outlet (901) of the air inlet member (200) being in communication with the communication opening (101); and an air guide member (300) has an air inlet end arranged on the second installation surface (120), the air inlet end of the air guide member (300) being in communication with the air inlet member (200) through the communication opening (101), and an air outlet end of the air guide member (300) being used for being in communication with an air outlet (901) of a front cover (90). The air guide member (300) comprises a straight pipe section (310), a first flared section (320) and a second flared section (330). The first flared section (320) is arranged at an air inlet of the straight pipe section (310), and one end of the first flared section (320) away from the straight pipe section (310) is connected with the support plate (100). The second flared section (330) is arranged at an air outlet (901) of the straight pipe section (310), and one end of the second flared section (330) away from the straight pipe section (310) is used for being connected with the front cover (90).

2. The air outlet structure of a heat pump outdoor unit according to claim 1, characterized in that, From the air inlet end of the air guide member (300) to the air outlet end of the air guide member (300), the diameter of the first flared section (320) decreases. From the air inlet end of the air guide member (300) to the air outlet end of the air guide member (300), the diameter of the second flared section (330) increases. From the air inlet end of the air guide member (300) to the air outlet end of the air guide member (300), the length of the first flared section (320) is not less than one third of the length of the straight pipe section (310).

3. The air outlet structure of the outdoor unit of the heat pump according to claim 2, characterized in that, From the air inlet end of the air guide member (300) to the air outlet end of the air guide member (300), the length of the second flared section (330) is not less than one third of the length of the straight pipe section (310). The inner diameter of one end of the first flared section (320) away from the straight pipe section (310) is 1.1-1.5 times the inner diameter of one end of the first flared section (320) towards the straight pipe section (310).

4. The air outlet structure of the outdoor unit of the heat pump according to claim 3, characterized in that, The inner diameter of one end of the second flared section (330) away from the straight pipe section (310) is 1.1-1.5 times the inner diameter of one end of the second flared section (330) towards the straight pipe section (310). A first abutting portion (321) is arranged on the air inlet end of the air guide member (300) and abuts against the support plate (100).

5. The air outlet structure of the outdoor unit of the heat pump according to claim 3, characterized in that, ​ ​ 6. The air outlet structure of a heat pump outdoor unit according to claim 1, characterized in that, ​ The first abutting part (321) is provided with a first fixing part (3211), and the air guide part (300) is connected with the support plate (100) through the first fixing part (3211); And / or, a second abutting part (331) is arranged on the air outlet side of the air guide part (300), and the second abutting part (331) is used for abutting with the front cover (90); The second abutting part (331) is provided with a second fixing part (3311), and the air guide part (300) is connected with the front cover (90) through the second fixing part (3311).

7. The air outlet structure of the outdoor unit of the heat pump according to claim 6, characterized in that, The first abutting part (321) is further provided with a positioning part (3212), and the support plate (100) is provided with a clamping groove (102); when the air guide part (300) is connected with the support plate (100), the positioning part (3212) is clamped in the clamping groove (102).

8. The air outlet structure of the outdoor unit of the heat pump according to any one of claims 1 to 7, characterized in that, The air inlet part (200) comprises a motor (210), a fan blade (220) and a mounting bracket (230); The mounting bracket (230) is connected with the support plate (100); The motor (210) is arranged in the mounting bracket (230); The fan blade (220) is fixedly connected with an output shaft of the motor (210), and at least part of the fan blade (220) is located on the inner side of the air guide part (300). 9.The air outlet structure of a heat pump outdoor unit according to claim 8, wherein The air inlet end of the mounting bracket (230) is provided with a mesh structure (231), and the motor (210) is connected with the mesh structure (231); The air outlet end of the mounting bracket (230) is provided with a mounting part (2314), and the mounting bracket (230) is connected with the support plate (100) through the mounting part (2314).

10. A heat pump unit, characterized by The air outlet structure of the heat pump outdoor unit is simple in structure, convenient in use, and has the advantages of high efficiency, low noise, low power consumption, long service life, etc.

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