Evaporative fan assembly for a stationary air conditioner and stationary air conditioner

Abstract

The present disclosure provides an evaporative fan assembly of a stationary air conditioner and a stationary air conditioner, the evaporative fan assembly comprising a bottom shell, a fan, a fan wheel, a mounting piece and an evaporative fan cover; the mounting piece is detachably connected with the bottom shell, and a side of the mounting piece away from the bottom shell is provided with a first mounting groove and a second mounting groove arranged at intervals; the fan wheel is connected with an output shaft of the fan, the fan is located in the first mounting groove, and an end of the fan wheel away from the fan is located in the second mounting groove, and a channel for air flow circulation is formed between the fan wheel and a side wall of the mounting piece; the evaporative fan cover covers the fan and the fan wheel, and the evaporative fan cover is detachably connected with the mounting piece. The evaporative fan assembly provided by the present disclosure can reduce the cost of the stationary air conditioner.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, and in particular to an evaporator fan assembly for a parking air conditioner and a parking air conditioner. Background Technology

[0002] Parking air conditioners are devices specifically designed to regulate the air environment inside trucks. They can precisely control key parameters such as temperature, humidity, and airflow speed, aiming to provide truck drivers with a more comfortable driving environment and improve working conditions during long-distance driving. The evaporator fan assembly, as the core component of the parking air conditioner, is responsible for driving forced air circulation, ensuring that the air inside the vehicle flows evenly and efficiently over the low-temperature evaporator fins for sufficient heat exchange, thereby achieving the core functions of cooling, dehumidification, and air supply.

[0003] In related technologies, the evaporator fan assembly includes a base shell, a fan, an impeller, and an evaporator shroud. The impeller is coaxially mounted on the output shaft of the fan. The impeller rotates under the drive of the fan. The evaporator shroud covers the fan and impeller and is connected to the fan to form the evaporator shroud assembly. The evaporator shroud assembly is then located on the volute of the base shell (the volute is integrated into the base shell), and there is a gap between the impeller and the base shell, with the evaporator shroud fixed to the base shell.

[0004] However, due to differences in the cooling capacity and structural dimensions of parking air conditioners required by different truck models, variations in cooling capacity often necessitate matching different models of evaporator fan assemblies. Therefore, when assembling the evaporator fan assembly with the chassis, the chassis design must be adjusted accordingly to accommodate different specifications of evaporator fan assemblies. Since the chassis is typically manufactured using injection molding during the design phase, and the cost of creating an injection mold is extremely high, changes to the chassis structure significantly increase the manufacturing cost of the chassis and the overall production cost of the evaporator fan assembly. Utility Model Content

[0005] This disclosure provides an evaporator fan assembly for a parking air conditioner and a parking air conditioner, which can improve the compatibility between the base and the evaporator fan assembly and reduce manufacturing costs. The technical solution is as follows:

[0006] This disclosure provides an evaporator fan assembly for a parking air conditioner. The evaporator fan assembly includes a base shell, a fan, a fan wheel, a mounting component, and an evaporator shroud. The mounting component is detachably connected to the base shell, and the side of the mounting component facing away from the base shell has a first mounting groove and a second mounting groove arranged at intervals. The fan wheel is connected to the output shaft of the fan, the fan is located in the first mounting groove, and the end of the fan wheel away from the fan is located in the second mounting groove. An airflow channel is formed between the fan wheel and the side wall of the mounting component. The evaporator shroud covers the fan and the fan wheel, and the evaporator shroud is detachably connected to the mounting component.

[0007] In another implementation of this disclosure, both the first mounting groove and the second mounting groove are arc-shaped grooves, and the center of the arc corresponding to the first mounting groove and the second mounting groove is located on the axis of the wind turbine.

[0008] In another implementation of this disclosure, the mounting component includes a first mounting base, a second mounting base, and a vortex tongue. The first mounting base and the second mounting base are respectively connected to both ends of the vortex tongue and are both located on the side of the vortex tongue facing the evaporator shroud. The first mounting groove is located on the side of the first mounting base facing the evaporator shroud, and the second mounting groove is located on the side of the second mounting base facing the first mounting base.

[0009] In another implementation of this disclosure, the first mounting base includes a frame and an arc-shaped plate; the arc-shaped plate is located within the frame, and the outer periphery of the arc-shaped plate is connected to a portion of the inner wall of the frame, and the arc-shaped inner cavity of the arc-shaped plate defines the first mounting groove.

[0010] In another implementation of this disclosure, the frame has an arc-shaped positioning groove on one side facing and adjacent to the second mounting base, and the center of the arc corresponding to the positioning groove is located on the axis of the wind turbine.

[0011] In another implementation of this disclosure, the second mounting base includes a support plate, and the second mounting groove is located on the side of the support plate facing the first mounting base.

[0012] In another implementation of this disclosure, the vortex tongue includes a support platform and a bent plate located on one side of the top of the support platform. The bottom of the support platform is located on the bottom shell. One side of the bent plate is connected to one side of the top of the support platform. The bent plate defines the channel between itself and the wind turbine.

[0013] In another implementation of this disclosure, the bending plate includes a first connecting plate and a second connecting plate. One side of the first connecting plate is connected to the top of the support platform, and the side of the first connecting plate away from the support platform is connected to the second connecting plate. The second connecting plate is located on the side of the wind turbine facing the bottom shell, and the connection between the first connecting plate and the second connecting plate is an arc-shaped surface.

[0014] In another implementation of this disclosure, along the direction in which the second connecting plate extends outward away from the first connecting plate, the distance between the second connecting plate and the axial section of the plane parallel to the bottom surface of the wind turbine gradually increases.

[0015] On the other hand, this disclosure also provides a parking air conditioner, which includes the evaporator assembly described above.

[0016] The beneficial effects of the technical solutions provided in this disclosure are:

[0017] Because the evaporator fan assembly includes a mounting component, which has a first mounting groove and a second mounting groove at both ends along the axis of the impeller, this double-groove structure provides an installation reference and reliable mechanical restraint for the fan and impeller, ensuring stable assembly of the fan and impeller. Simultaneously, the impeller and the mounting component form a channel, effectively guiding the airflow driven by the impeller's rotation, reducing eddies and pressure loss, thereby improving aerodynamic efficiency and the overall performance of the fan.

[0018] Furthermore, because the mounting components are detachably connected to the base shell, the mounting components can be appropriately selected based on the specifications of the evaporator fan assembly (including height, etc.). In other words, by selecting different specifications of mounting components, various models of fans and impellers can be accommodated, significantly enhancing the versatility of the base shell. This not only simplifies the manufacturing process of the base shell but also avoids the cost of redeveloping the entire base shell due to changes in a single component, fundamentally reducing manufacturing costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An exploded view of an evaporator fan assembly for a parking air conditioner provided in this embodiment of the present disclosure;

[0021] Figure 2 for Figure 1 Structural diagram of the mounting components;

[0022] Figure 3 for Figure 2 A bottom view;

[0023] Figure 4 yes Figure 2 An overall schematic diagram.

[0024] The symbols in the diagram represent the following meanings:

[0025] 1. Bottom shell;

[0026] 2. Fan;

[0027] 3. Wind turbine;

[0028] 4. Mounting components; 401. First mounting slot; 402. Second mounting slot; 41. First mounting base; 411. Frame; 412. Arc-shaped plate; 4110. Positioning slot; 42. Second mounting base; 421. Support plate; 43. Volute; 431. Support platform; 432. Bending plate; 4321. First connecting plate; 4322. Second connecting plate; 4320. Side edge;

[0029] 5. Evaporator hood. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0031] This disclosure provides an evaporator fan assembly for a parking air conditioner, such as... Figure 1 As shown, the evaporator fan assembly includes a base shell 1, a fan 2, an impeller 3, a mounting component 4, and an evaporator shroud 5.

[0032] Mounting component 4 is detachably connected to the bottom shell 1. The side of mounting component 4 facing away from the bottom shell 1 has a first mounting groove 401 and a second mounting groove 402 arranged at intervals. The impeller 3 is connected to the output shaft of the fan 2. The fan 2 is located within the first mounting groove 401, and the end of the impeller 3 away from the fan 2 is located within the second mounting groove 402. A channel for airflow is formed between the impeller 3 and the side wall of mounting component 4. An evaporator shroud 5 covers the fan 2 and the impeller 3, and the evaporator shroud 5 is detachably connected to mounting component 4.

[0033] When the evaporator fan assembly provided in this embodiment is used in a parking air conditioner, since the evaporator fan assembly includes a base shell 1, the base shell 1 can provide a mounting base for other components. Simultaneously, the evaporator fan assembly also includes a fan 2, an impeller 3, and an evaporator shroud 5, etc. Therefore, the fan 2 can drive the impeller 3 to rotate, and the rotation of the impeller 3 can drive airflow. The evaporator shroud 5, covering the fan 2 and the impeller 3, can collect the high-speed air driven by the impeller 3, making the airflow more stable and evenly delivered into the air duct, while guiding the airflow direction and improving the efficiency and performance of the fan.

[0034] Furthermore, since the evaporator fan assembly also includes a mounting component 4, which has a first mounting groove 401 and a second mounting groove 402 at both ends along the axial direction of the impeller 3, this double-groove structure provides an installation reference and reliable mechanical limit for the fan 2 and the impeller 3, ensuring stable assembly of the fan 2 and the impeller 3. Simultaneously, a channel is formed between the impeller 3 and the mounting component 4. This channel design effectively guides the airflow driven by the rotation of the impeller 3, reducing eddies and pressure loss, thereby improving aerodynamic efficiency and the overall performance of the fan 2.

[0035] Furthermore, because the mounting component 4 is detachably connected to the base shell 1, this modular architecture allows for the selection of different mounting components 4 depending on the height of the evaporator fan assembly. In other words, by selecting different specifications of mounting components 4, various models of fans 2 and impellers 3 can be accommodated, significantly enhancing the versatility of the base shell 1. This not only simplifies the manufacturing process of the base shell 1 but also avoids the cost of redeveloping the entire base shell 1 due to changes in a single component, fundamentally reducing manufacturing costs.

[0036] Optionally, both the first mounting groove 401 and the second mounting groove 402 are arc-shaped grooves, and the center of the arc corresponding to the first mounting groove 401 and the second mounting groove 402 is located on the axis of the wind turbine 3.

[0037] In the above implementation, both the first mounting groove 401 and the second mounting groove 402 are arc-shaped grooves, and the center of the arc of the groove is located on the axis of the impeller 3. This means that the curvature center of the first mounting groove 401 and the second mounting groove 402 is completely coincident with the center of the impeller's rotation axis. This ensures that when the fan 2 and the impeller 3 are assembled onto the mounting component 4, their rotation center is strictly limited to the design position, thereby avoiding dynamic imbalance and minimizing the radial runout and end face runout of the impeller 3 during rotation, thus preventing dynamic imbalance caused by assembly errors from the source. Moreover, the above design also makes the gap between the impeller 3 and the surrounding components of the air inlet uniform, allowing air to be drawn in smoothly and evenly, reducing air intake vortices and resistance. In addition, during assembly, simply placing the fan 2 into the arc-shaped first mounting groove 401 and one end of the impeller 3 into the second mounting groove 402 will automatically correct the radial position of the impeller 3 and the fan 2 to the correct center position, without the need for additional tooling or complex adjustments to find the center.

[0038] Figure 2 for Figure 1 Structural diagram of the mounting components. Figure 3 for Figure 2 The bottom view, combined with Figure 2 and Figure 3 Optionally, the mounting component 4 includes a first mounting base 41, a second mounting base 42, and a vortex 43. The first mounting base 41 and the second mounting base 42 are respectively connected to both ends of the vortex 43 and are both located on the side of the vortex 43 facing the evaporator shroud 5.

[0039] The first mounting slot 401 is located on the side of the first mounting base 41 facing the evaporator hood 5, and the second mounting slot 402 is located on the side of the second mounting base 42 facing the first mounting base 41.

[0040] In the above implementation, the first mounting base 41 is used to limit the movement of the fan 2, and the second mounting base 42 is used to limit one end of the impeller 3. The vortex tongue 43 is used to fix it to the base shell 1, so that the first mounting base 41 and the second mounting base 42 can also be fixed to the base shell 1. Moreover, by designing the first mounting base 41, the second mounting base 42 and the vortex tongue 43 as an integral mounting component 4, a robust structure can be formed, so that once the fan 2 and the impeller 3 are installed on the first mounting groove 401 and the second mounting groove 402, the relative position between the rotation axis of the impeller 3 and the vortex tongue 43 is correct, without the need for on-site debugging.

[0041] Optionally, the first mounting base 41 includes a frame 411 and an arc-shaped plate 412. The arc-shaped plate 412 is located inside the frame 411, and the outer periphery of the arc-shaped plate 412 is connected to the inner wall of the frame 411. The arc-shaped inner cavity of the arc-shaped plate 412 defines the first mounting groove 401.

[0042] The frame 411 provides a mounting base for the arc-shaped plate 412, and the arrangement of the arc-shaped plate 412 is used to define the first mounting groove 401.

[0043] In this embodiment, the frame 411 is an n-sided frame (n≥3), and the frame 411 is formed by multiple sequentially connected partitions. This simplifies the structure of the first mounting base 41 and simplifies the manufacturing process.

[0044] Optionally, the side of the frame 411 facing and adjacent to the second mounting base 42 has an arc-shaped positioning groove 4110, and the center of the arc corresponding to the positioning groove 4110 is located on the axis of the wind turbine 3.

[0045] In the above implementation, the positioning groove 4110 is arranged to accommodate one end of the wind turbine 3 so as to limit the position of the wind turbine 3.

[0046] Optionally, the second mounting base 42 includes a support plate 421, and a second mounting groove 402 is located on the side of the support plate 421 facing the first mounting base 41.

[0047] In the above implementation, the support plate 421 is used to provide a foundation for the setting of the second mounting slot 402.

[0048] Figure 4 for Figure 2 Overall schematic diagram, combined with Figure 4 . Figure 4 Also for Figure 3 The diagram shows the result after flipping the screen 180 degrees vertically and then 180 degrees horizontally. Figure 1The diagram shows the corresponding position of the mounting component 4 after it has been rotated 180 degrees to the left and right. Optionally, the vortex tongue 43 includes a support platform 431 and a bent plate 432 located on one side of the support platform 431. The bottom of the support platform 431 is located on the bottom shell 1, and one side of the bent plate 432 is connected to one side of the top of the support platform 431, defining a channel between the bent plate 432 and the impeller 3. The bending area of ​​the bent plate 432 is an arc-shaped surface.

[0049] In the above implementation, the support platform 431 provides a mounting base for the first mounting base 41 and the second mounting base 42. The bent plate provides a smooth transition channel for the airflow, guiding the airflow to change direction naturally and flow along the spiral flow channel of the evaporator shroud 5, greatly reducing separation and eddies, thereby improving efficiency and air pressure.

[0050] Optionally, the bending plate 432 includes a first connecting plate 4321 and a second connecting plate 4322. One side of the first connecting plate 4321 is connected to the top of the support platform 431, and the side of the first connecting plate 4321 away from the support platform 431 is connected to the second connecting plate 4322. The second connecting plate 4322 is located on the side of the impeller 3 facing the bottom shell 1, and the connection between the first connecting plate 4321 and the second connecting plate 4322 is an arc-shaped surface.

[0051] In the above implementation, the bending plate 432 is defined as a two-section bending structure, which includes an arc-shaped surface. This allows the first connecting plate 4321 and the second connecting plate 4322 to be connected via the arc-shaped surface, forming a continuous, smooth, streamlined channel. This design can extremely efficiently and smoothly guide the high-speed airflow ejected by the impeller 3 into the main channel of the evaporator shroud 5, minimizing airflow separation, turbulence, and energy loss, thereby significantly improving fan efficiency and air pressure.

[0052] Optionally, see [link to relevant documentation] Figure 4 Along the direction a that extends outward from the first connecting plate 4321 away from the second connecting plate 4322, the distance h between the second connecting plate 4322 and the axial section b of the plane parallel to the bottom surface of the wind turbine 3 gradually increases.

[0053] In the above implementation, when the impeller 3 is working, air is drawn in axially and then ejected radially by the blades. The main direction of the airflow ejected by the impeller 3 is along the tangent of the impeller 3 and diffuses slightly downward (due to centrifugal force and pressure difference). The inclination of the second connecting plate 4322 can match the direction of the airflow ejected by the impeller 3, allowing the airflow to flow past the surface of the second connecting plate 4322, preventing the airflow from diffusing downward and impacting the bottom shell 1, thus preventing damage.

[0054] For example, the mounting component 4 is installed at the air outlet of the base shell 1 and secured with screws. The base shell 1 has a pre-drilled interface for the mounting component 4, allowing the mounting component 4 to be tightly installed with the base shell. The mounting component 4 can be varied depending on the type of fan 2.

[0055] In some embodiments, the mounting component 4 can be installed on the bottom shell 1 by changing the bending height between the first connecting plate 4321 and the second connecting plate 4322 and the size of the first mounting groove 401, etc.

[0056] In this embodiment, the mounting component 4 is an injection-molded integral structural component.

[0057] Due to the extremely high precision of injection molds, the above method ensures that every produced mounting component 4 is completely consistent in size. Furthermore, treating mounting component 4 as a single structure results in superior mechanical properties compared to assembling multiple parts using screws or clips. Moreover, integrating multiple functions into a single component achieves modular assembly. On the assembly line, workers only need to fix mounting component 4 to the base shell 1, and then install the fan 2 and impeller 3 into the first mounting slot 401 and the second mounting slot 402. This replaces the tedious process of installing multiple independent small parts separately, significantly reducing assembly steps and time, thereby lowering overall assembly costs.

[0058] On the other hand, this disclosure also provides a parking air conditioner, which includes the aforementioned evaporator assembly.

[0059] The above-mentioned evaporator fan assembly has the same beneficial effects as the aforementioned evaporator fan assembly, and will not be repeated here.

[0060] The working process of the evaporator fan assembly provided in this embodiment is briefly described below:

[0061] First, select a suitable mounting component 4 based on the size and model of the fan 2. Then, install the fan 2 and impeller 3 onto the mounting component 4 via the first mounting groove 401 and the second mounting groove 402, respectively, and fasten the evaporator shroud 5 onto the mounting component 4, connecting it to the mounting component 4. Next, install the mounting component 4, fan 2, etc., as a whole onto the base shell 1, connecting the mounting component 4 to the base shell 1. This completes the installation of the evaporator fan assembly.

[0062] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. An evaporator fan assembly for a parking air conditioner, characterized in that, The evaporator assembly includes a base shell (1), a fan (2), an impeller (3), mounting components (4), and an evaporator shroud (5); The mounting component (4) is detachably connected to the bottom shell (1), and the side of the mounting component (4) facing away from the bottom shell (1) has a first mounting groove (401) and a second mounting groove (402) arranged at intervals. The impeller (3) is connected to the output shaft of the fan (2). The fan (2) is located in the first mounting groove (401). The end of the impeller (3) away from the fan (2) is located in the second mounting groove (402). A channel for airflow is formed between the impeller (3) and the side wall of the mounting component (4). The evaporation hood (5) is installed outside the fan (2) and the impeller (3), and the evaporation hood (5) is detachably connected to the mounting component (4).

2. The evaporator fan assembly according to claim 1, characterized in that, Both the first mounting groove (401) and the second mounting groove (402) are arc-shaped grooves, and the center of the arc corresponding to the first mounting groove (401) and the second mounting groove (402) is located on the axis of the wind turbine (3).

3. The evaporator fan assembly according to claim 1, characterized in that, The mounting component (4) includes a first mounting base (41), a second mounting base (42), and a vortex (43). The first mounting base (41) and the second mounting base (42) are respectively connected to both ends of the vortex (43) and are both located on the side of the vortex (43) facing the evaporator shroud (5). The first mounting slot (401) is located on the side of the first mounting base (41) facing the evaporator shroud (5), and the second mounting slot (402) is located on the side of the second mounting base (42) facing the first mounting base (41).

4. The evaporator fan assembly according to claim 3, characterized in that, The first mounting base (41) includes a frame (411) and an arc-shaped plate (412); The arc-shaped plate (412) is located inside the frame (411), and the outer periphery of the arc-shaped plate (412) is connected to a portion of the inner wall of the frame (411). The arc-shaped inner cavity of the arc-shaped plate (412) defines the first mounting groove (401).

5. The evaporator fan assembly according to claim 4, characterized in that, The frame (411) has an arc-shaped positioning groove (4110) on one side facing and adjacent to the second mounting base (42), and the center of the arc corresponding to the positioning groove (4110) is located on the axis of the wind turbine (3).

6. The evaporator fan assembly according to claim 3, characterized in that, The second mounting base (42) includes a support plate (421) and the second mounting groove (402) is located on the side of the support plate (421) facing the first mounting base (41).

7. The evaporator fan assembly according to claim 3, characterized in that, The vortex tongue (43) includes a support platform (431) and a bent plate (432) located on one side of the top of the support platform (431). The bottom of the support platform (431) is located on the bottom shell (1). One side (4320) of the bent plate (432) is connected to one side of the top of the support platform (431). The bent plate (432) and the wind turbine (3) define the channel.

8. The evaporator fan assembly according to claim 7, characterized in that, The bending plate (432) includes a first connecting plate (4321) and a second connecting plate (4322). One side of the first connecting plate (4321) is connected to the top of the support platform (431), and the side of the first connecting plate (4321) away from the support platform (431) is connected to the second connecting plate (4322). The second connecting plate (4322) is located on the side of the wind turbine (3) facing the bottom shell (1). The connection between the first connecting plate (4321) and the second connecting plate (4322) is an arc-shaped surface.

9. The evaporator fan assembly according to claim 8, characterized in that, Along the direction in which the second connecting plate (4322) extends outward away from the first connecting plate (4321), the distance between the second connecting plate (4322) and the axial section of the wind turbine (3) parallel to the bottom surface of the bottom shell (1) gradually increases.

10. A parking air conditioner, characterized in that, The parking air conditioner includes the evaporator fan assembly as described in any one of claims 1-9.

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