Duct type air conditioner

Abstract

The utility model provides a duct type air conditioner which comprises a shell, an integrated middleware, an evaporator supporting piece and a float switch supporting piece, the integrated middleware is connected with the shell, the evaporator supporting piece is connected to the integrated middleware, and the float switch supporting piece is connected to the integrated middleware. The integrated middleware, the evaporator supporting piece and the float switch supporting piece are of an integrally-formed structure. According to the duct type air conditioner, the evaporator supporting piece and the float switch supporting piece are integrated through the integrated middleware and are integrally formed, so that the number of parts is reduced, a large amount of tedious connection operation is reduced, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This application pertains to the field of air conditioning, and more specifically, relates to a ducted air conditioner. Background Technology

[0002] In ducted air conditioning systems, there are evaporator supports for mounting the evaporator and float switch supports for mounting the float switch. Currently, the assembly method typically involves separately mounting the evaporator supports and float switch supports to the side panels of the ducted air conditioning unit, resulting in low assembly efficiency. Utility Model Content

[0003] The purpose of this application is to provide a ducted air conditioner to solve the technical problem of low assembly efficiency of the evaporator support and float switch support in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a ducted air handling unit, the ducted air handling unit comprising:

[0005] case;

[0006] Integration of middleware; connection between integration of middleware and the shell;

[0007] Evaporator support component; the evaporator support component is connected to the integrated intermediate component;

[0008] Float switch support; the float switch support is connected to the integrated middleware;

[0009] The integrated intermediate component, evaporator support component, and float switch support component are all integrally molded structures.

[0010] Optionally, the evaporator support is bent relative to the integrated intermediate part, forming a first bend between the integrated intermediate part and the evaporator support, and the float switch support is located on the side of the integrated intermediate part near the first bend.

[0011] Optionally, the float switch support includes a first folding portion, which is connected to the evaporator support.

[0012] Optionally, the first bending portion includes a first reinforcing portion, which forms a first groove extending from the integrated intermediate member to the evaporator support member on the outer side of the first bending portion, and a corresponding first protrusion extending from the integrated intermediate member to the evaporator support member is formed on the inner side of the first bending portion.

[0013] Optionally, the housing includes an exhaust vent and a first side plate disposed on one side of the exhaust vent;

[0014] The first side panel includes a second folding section, which is bent toward the exhaust vent, and an integrated intermediate component is connected to the second folding section.

[0015] Optionally, the housing also includes a base plate located on one side of the exhaust vent, with the first side plate connected to the base plate;

[0016] The base plate includes a base plate body and a third folding part located on the base plate body. The third folding part is bent toward the exhaust port, and an integrated intermediate component is connected to the third folding part.

[0017] Optionally, the integrated middleware includes a middleware body and a fourth folding part located on the integrated middleware, the middleware body abutting against the third folding part, and the fourth folding part abutting against the base plate.

[0018] Optionally, the intermediate body and the fourth folding portion form a second bending portion. The second bending portion includes a second reinforcing portion. The second reinforcing portion forms a second groove extending from the intermediate body to the fourth folding portion on the outer side of the second bending portion, and the second reinforcing portion correspondingly forms a second protrusion extending from the intermediate body to the fourth folding portion on the inner side of the second bending portion.

[0019] Optionally, the duct unit also includes an electric heating element and a first electric heating support;

[0020] One end of the electric heating element is provided with a connecting post, and the evaporator support is provided with a flanged hole, through which the connecting post passes;

[0021] The first electric heating support is located at the end of the electric heating element away from the evaporator support, and the other end of the electric heating element is connected to the first electric heating support.

[0022] Optionally, the duct unit also includes fasteners. The first electric heating support is provided with a first connecting hole, and the electric heating element is provided with a second connecting hole. At least one of the first connecting hole and the second connecting hole is a strip hole. The direction of the strip hole is parallel to the axis of the connecting column. The fastener passes through the first connecting hole and the second connecting hole to connect the electric heating element and the first electric heating support.

[0023] The beneficial effects of the duct air conditioner provided in this application are as follows: Compared with the prior art, the duct air conditioner in the embodiment of this application integrates the evaporator support and the float switch support into one piece by integrating the intermediate component, and is integrally molded, thereby reducing the number of parts, reducing a lot of cumbersome connection operations, improving production efficiency, and reducing production costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the assembly of the evaporator support and float switch support before the improvement.

[0026] Figure 2 This is a schematic diagram of a ductwork unit according to an embodiment of this application;

[0027] Figure 3 This is a schematic diagram from a first perspective of the integrated monolithic structure according to an embodiment of this application;

[0028] Figure 4 This is a schematic diagram from a second perspective of the integrated, one-piece molded structure according to an embodiment of this application;

[0029] Figure 5 This is a schematic diagram from a third perspective of the integrated, one-piece molded structure according to an embodiment of this application;

[0030] Figure 6 This is an assembly schematic diagram from one perspective of the integrated, one-piece molded structure according to an embodiment of this application;

[0031] Figure 7 This is an assembly schematic diagram from another perspective of the integrated, one-piece molded structure according to an embodiment of this application;

[0032] Figure 8 This is an assembly diagram of the integrated electric heating element away from the evaporator support in an embodiment of this application.

[0033] In the figure, the reference numerals are as follows: housing 10; integrated intermediate component 11; intermediate component body 111; fourth folding part 112; second bending part 113; second reinforcing part 114; evaporator support 12; flange hole 121; float switch support 13; first folding part 131; first bending part 14; first reinforcing part 141; first groove 1411; first protrusion 1412; first side plate 2; mounting part 21; third bending part 22; second folding part 23; bottom plate 3; third folding part 31; electric heating element 4; connecting column 41; first electric heating support 42; second electric heating support 43; second side plate 5. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] A ducted air conditioner is a crucial component in a ducted air conditioning system, responsible for indoor air conditioning; it's essentially the indoor unit of the system. It's typically installed in a dedicated space above the ceiling or within a suspended ceiling, connecting to the outdoor unit to form a complete air conditioning system. A ducted air conditioner mainly consists of a fan, evaporator, electric heating element, air filter, air outlet, and return air vent. The fan's function is to deliver treated air through the ducts to various rooms or areas, achieving air circulation and distribution. The air filter removes dust and impurities from the air, ensuring clean indoor air. The air outlet and return air vent are used to deliver conditioned air and draw in returning air from the room, forming an air circulation loop.

[0039] The working principle of a ducted air conditioning system is based on the fundamental cooling and heating principles of air conditioning. During cooling, low-temperature, low-pressure refrigerant supplied from the outdoor unit enters the evaporator of the ducted unit, evaporates within the evaporator, absorbs heat from the surrounding environment, and lowers the surface temperature of the evaporator. Indoor air flows through the evaporator, absorbs heat, and cools down; it is then blown by the fan and evenly distributed throughout the room via the ductwork. During heating, the evaporator and condenser functions are switched via valves. The evaporator absorbs heat from the outside and transfers it to the indoor air, raising the indoor temperature. Electric heating elements can be used to provide auxiliary heating.

[0040] The evaporator is the core heat exchange component of a ducted air conditioner for both cooling and heating. During cooling, the low-temperature, low-pressure liquid refrigerant enters the evaporator and evaporates into a gas, absorbing heat from the air surrounding the copper pipes and cooling the indoor air. During heating, the evaporator absorbs heat from the outdoor air and transfers it to the indoor air for heating. The float switch is a critical protection device for ducted air conditioners, primarily monitoring the liquid level in the evaporator or related parts of the system. It consists of a float, a connecting rod, and a switching mechanism. The float rises and falls with changes in the liquid level, actuating the switching mechanism via the connecting rod.

[0041] The evaporator is mounted on an evaporator support, while the float switch is mounted on a float switch support. Current assembly methods typically involve separately mounting the evaporator support and float switch support to the side panel of the duct unit, resulting in low assembly efficiency. Figure 1 For example, the side plate of the duct air conditioner is bent to form the mounting part 21. During assembly, the evaporator support 12 and the float switch support 13 are assembled on the mounting part 21. This method involves a large number of parts and complicated processing, resulting in low assembly efficiency and high production cost.

[0042] For the above issues, please refer to Figure 2 , Figure 3 and Figure 4 An embodiment of this application provides a duct air conditioner, which includes:

[0043] Casing 10;

[0044] Integrated middleware 11; Integrated middleware 11 is connected to housing 10;

[0045] Evaporator support 12; Evaporator support 12 is connected to integrated intermediate component 11;

[0046] Float switch support 13; Float switch support 13 is connected to integrated intermediate component 11;

[0047] Among them, the integrated intermediate component 11, the evaporator support component 12, and the float switch support component 13 are integrally formed structures.

[0048] In the overall structure of the ducted air conditioner, the housing 10 is a crucial component. The housing 10 protects the various internal parts. In this embodiment, the integrated intermediate component 11 connects to the housing, playing a key connecting and integrating role in the overall structure, forming the basic connection for the installation and coordinated operation of the evaporator support and float switch support. The evaporator support 12 primarily provides support and fixation for the evaporator. Connected to the integrated intermediate component 11, the evaporator support 12 is firmly attached to it, ensuring stable placement of the evaporator and preventing shaking or displacement during operation, thus maintaining its normal working condition. The float switch support 13 supports the float switch, ensuring it is in the correct position for accurate liquid level monitoring. The float switch support 13 is also connected to the integrated intermediate component 11, achieving correct installation and positioning of the float switch through this connection, ensuring the float switch can stably perform its liquid level monitoring function.

[0049] It is particularly important to note that the integrated intermediate component 11, the evaporator support component 12, and the float switch support component 13 adopt a one-piece molding structure. This means that in the manufacturing process, these three components are not manufactured independently and then assembled. Instead, a complete component is directly manufactured using processes such as casting with specific molds and sheet metal bending processes.

[0050] In terms of assembly, the difficulty of assembly is greatly reduced. Traditional methods of separate manufacturing and reassembly require precise connection of each component according to design requirements. This places high demands on the technical skills of assembly workers and the assembly environment. Moreover, any deviation in the connection accuracy between components can affect the performance of the entire duct unit. The one-piece molding structure reduces the complex connection processes between multiple components, eliminating the need to consider positioning and alignment issues, making assembly simpler and more direct. It also significantly improves assembly efficiency. By reducing numerous tedious connection operations, assembly time is significantly shortened. In large-scale production, duct units can be assembled quickly, improving production efficiency, reducing production costs, and bringing greater economic benefits to enterprises. Furthermore, the one-piece molding structure enhances the structural strength and stability of the entire component assembly. Without numerous connection gaps, it better copes with complex operating conditions such as vibration and temperature changes during duct unit operation, ensuring long-term stable operation, reducing the probability of failure, and improving product quality and user experience.

[0051] Please see Figure 3 and Figure 4In some embodiments of this application, the evaporator support 12 is bent relative to the integrated intermediate 11, and a first bend 14 is formed between the integrated intermediate 11 and the evaporator support 12, and the float switch support 13 is located on the integrated intermediate 11 on the side close to the first bend 14.

[0052] The integrated intermediate component 11, evaporator support component 12, and float switch support component 13 can be made from a single material such as a metal sheet. Through specific processing techniques and multiple bending operations, they are ultimately formed into an integrated structure with a specific shape and function. In this process, the material is bent into corresponding angles and shapes at different locations according to design requirements to shape the integrated intermediate component 11, evaporator support component 12, and float switch support component 13. In this embodiment, the evaporator support component 12 and the integrated intermediate component 11 are formed by bending, and the bending of the evaporator support component relative to the integrated intermediate component forms the first bending portion 14 between the two.

[0053] During the one-piece bending process, due to limitations in the processing technology or minor deviations in the operation, the bending angle of the bent part is prone to discrepancies with the design angle. For example, when bending materials using bending equipment, factors such as the precision of the equipment, wear of the mold, or the characteristics of the material itself may cause a certain deviation between the actual bending angle and the ideal design angle.

[0054] When there is an error in the bending angle, the distance between the float switch support 13 and the bending part varies, resulting in different offsets. When the float switch support 13 is far from the bending part, even if the bending angle error is small, the offset will increase significantly due to the long distance, according to geometric principles. The offset of the float switch support 13 will cause the float switch mounted on it to offset. Since the float switch needs to be precisely positioned to monitor parameters such as liquid level, the positional offset will prevent it from accurately sensing parameter changes and thus failing to function properly. For example, when monitoring the evaporator condensate level, it will not be able to issue an abnormal liquid level signal in a timely and accurate manner.

[0055] In this embodiment, the first bend 14 is the bend area between the integrated intermediate component 11 and the evaporator support component 12. The float switch support component 13 is located on the integrated intermediate component 11 on the side closest to the first bend 14. This means that with the same bending angle error, the offset is relatively small due to the short distance. Even if there is an angle error in the bend, the increase in offset is not significant over a short distance, effectively reducing the possibility of the float switch support component 13 shifting, ensuring that the float switch maintains the correct position, stably performs its monitoring function, and provides reliable monitoring and protection for the normal operation of the duct unit.

[0056] by Figure 1 For example, Figure 1The image shows the evaporator support 12 and float switch support 13 of the previous version of the ducted air conditioner. The first side plate 2 of this ducted air conditioner is bent to form a mounting portion 21, and a third bend 22 is formed between the first side plate 2 and the mounting portion 21. The distance between the center of the float switch bracket and the third bend 22 is 92.5 mm. Deformation easily occurs at the bend, causing the float switch bracket to deviate from its designed position, leading to float switch failure. However, as... Figure 3 The image shows the improved duct air conditioner in this embodiment. The bending part that affects the position of the float switch bracket is the first bending part 14 between the integrated intermediate part 11 and the evaporator support part 12. The distance between the center distance of the float switch bracket and the first bending part 14 is 23.5mm, which is relatively close. The processing deformation at the bending point has little impact on the positional offset of the float bracket.

[0057] Please see Figure 3 and Figure 4 In some embodiments of this application, the float switch support 13 includes a first folding portion 131, which is connected to the evaporator support 12.

[0058] The first fold 131 here is a folded portion in the structure of the float switch support 13. It is formed by further bending a part of the material of the float switch support 13 during the integral bending process or subsequent processing. The first fold 131 not only enhances the structural strength of the float switch support 13 itself, but also allows for a stable connection between the float switch support 13 and the evaporator support 12. Since the float switch support 13 is also formed by bending relative to the integrated intermediate part 11, it connects between the evaporator support 12 and the integrated intermediate part 11, thus supporting the first fold 14 and preventing deformation of the first fold 14. The stability of the first fold 14 ensures the accurate positioning of the float switch support 13 and the stability of the evaporator support 12.

[0059] Please see Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the first bending portion 14 includes a first reinforcing portion 141. The first reinforcing portion 141 forms a first groove 1411 extending from the integrated intermediate member 11 to the evaporator support member 12 on the outer side of the first bending portion 14, and a first protrusion 1412 extending from the integrated intermediate member 11 to the evaporator support member 12 is correspondingly formed on the inner side of the first bending portion 14.

[0060] First, it should be noted that the outer side of the first bend 14 refers to the side where the angle exceeds 180°, that is... Figure 5 On the side shown, the inner side of the first bend 14 refers to the side where its angle is less than 180°, that is... Figure 3 and Figure 4 On one side of the display. The first reinforcing part 141 forms a first groove 1411 on the outer side of the first bending part 14. The first groove 1411 starts from the edge of the integrated intermediate part 11 and extends to the edge of the evaporator support 12. On the inner side of the first bending part 14, corresponding to the position of the first groove 1411, due to the recess on the inner side of the first bending part 14, a protruding structure is formed on its inner side, namely the first protrusion 1412. Corresponding to the first recess, the first protrusion 1412 also extends from the integrated intermediate part 11 to the evaporator support 12. Therefore, the first protrusion 1412 forms a support structure between the integrated intermediate part 11 and the evaporator support 12, which can prevent the first bending part 14 from deforming, thereby ensuring the accuracy and stability of the position of the evaporator support 12 and the float switch support 13.

[0061] The first reinforcing part 141 can be set with one or more, for example Figure 3 , Figure 4 and Figure 5 In the embodiment shown, a plurality of first reinforcing parts 141 are provided along the first bending portion 14, which can ensure that the bending angle of the first bending portion 14 as a whole is accurate and not easily deformed.

[0062] Please see Figure 2 , Figure 6 and Figure 7 In some embodiments of this application, the housing 10 includes an exhaust port and a first side plate 2 disposed on one side of the exhaust port; the first side plate 2 includes a second folding portion 23, which is bent toward the exhaust port, and the integrated intermediate component 11 is connected to the second folding portion 23.

[0063] The exhaust vent is the channel through which the ducted air unit discharges treated air, and the first side panel 2 is located on one side of the exhaust vent. For example... Figure 1 As shown, in the original technical solution, the evaporator support 12 and the float switch support 13 were directly assembled to the mounting portion 21 of the first side plate 2 by welding or other methods. However, as... Figure 6 and Figure 7 As shown, in this embodiment, the first side plate 2 includes a second folded portion 23, which is formed by bending a portion of the material of the first side plate 2. It is bent towards the exhaust port, allowing it to be close to the integrated intermediate component 11 for easy connection. The integrated intermediate component 11 plays a crucial role in connecting and integrating multiple key components inside the duct unit, such as the evaporator support component 12. After the integrated intermediate component 11 is connected to the second folded portion 23, the internal components are tightly connected to the structure of the housing 10. This connection allows the housing 10 to provide a stable external support environment for the internal components, while the forces generated by the internal components can also be transmitted to the housing 10 through the integrated intermediate component 11, achieving overall structural stability.

[0064] Please see Figure 6 In some embodiments of this application, the housing 10 further includes a bottom plate 3 located on the side of the exhaust port, and the first side plate 2 is connected to the bottom plate 3; the bottom plate 3 includes a bottom plate 3 body and a third folding part 31 located on the bottom plate 3 body, the third folding part 31 is bent toward the exhaust port, and the integrated intermediate part 11 is connected to the third folding part 31.

[0065] In this embodiment, the housing 10 is further provided with a bottom plate 3 on the exhaust port side, and the first side plate 2 is connected to the bottom plate 3. The bottom plate 3 is composed of a main body and a third folding part 31 thereon. The third folding part 31 is formed by bending a portion of the material of the main body of the bottom plate 3, and it is also bent towards the exhaust port, which facilitates connection with the integrated intermediate component 11. As an important component connecting multiple key internal parts, the integrated intermediate component 11, after being connected with the third folding part 31, allows the integrated intermediate component 11 to be connected to both the first side plate 2 and the bottom plate 3 at the same time, thereby ensuring its structural stability and accurate positioning. In this way, the evaporator support 12 and the float switch support 13, which form an integral structure with it, can be ensured to be accurately positioned and structurally stable.

[0066] Please see Figure 6 In some embodiments of this application, the integrated middleware 11 includes a middleware body 111 and a fourth folding portion 112 located on the integrated middleware 11. The middleware body 111 abuts against the third folding portion 31, and the fourth folding portion 112 abuts against the base plate 3.

[0067] During the actual operation of the ducted air conditioning unit, the integrated intermediate component 11 will inevitably be subjected to vertical loads. When these vertical loads are applied to the integrated intermediate component 11, without reliable support and stabilization measures, the integrated intermediate component 11 may become tilted, thereby affecting the position of its various components. In this embodiment, in addition to its main body 111, the integrated intermediate component 11 is also provided with a fourth folding part 112. The main body 111 abuts against the third folding part 31, and the fourth folding part 112 abuts against the base plate 3, thereby supporting the integrated intermediate component 11 on two sides, ensuring its accurate vertical position and structural stability, and thus ensuring the accurate position and structural stability of the evaporator support 12 and the float switch support 13.

[0068] Please see Figure 4 and Figure 5In some embodiments of this application, the intermediate body 111 and the fourth folding portion 112 form a second bending portion 113. The second bending portion 113 includes a second reinforcing portion 114. The second reinforcing portion 114 forms a second groove extending from the intermediate body 111 to the fourth folding portion 112 on the outer side of the second bending portion 113, and the second reinforcing portion 114 forms a second protrusion extending from the intermediate body 111 to the fourth folding portion 112 on the inner side of the second bending portion 113.

[0069] Because the intermediate body 111 of the integrated intermediate component 11 abuts against the third folding part 31, and the fourth folding part 112 of the integrated intermediate component 11 abuts against the base plate 3, in order to ensure the accurate installation of the integrated intermediate component 11, it is necessary to ensure the accurate bending angle of the second bending part 113 between the intermediate body 111 and the fourth folding part 112.

[0070] In this embodiment, the second bending portion 113 includes a second reinforcing portion 114. The second reinforcing portion 114 is similar to the first reinforcing portion 141 and can reduce the possibility of deformation of the second bending portion 113. Specifically, the outer side of the second bending portion 113, i.e. Figure 5 The side shown has a second groove, the inner side of the second bend 113, i.e. Figure 4 The side shown has a second protrusion, which strengthens the second bend 113, prevents it from deforming, and ensures the accurate installation of the integrated intermediate 11.

[0071] Please see Figure 4 , Figure 6 and Figure 8 In some embodiments of this application, the duct air conditioner further includes an electric heating element 4 and a first electric heating support 42. One end of the electric heating element 4 is provided with a connecting post 41. The evaporator support 12 is provided with a flanged hole 121, and the connecting post 41 passes through the flanged hole 121. The first electric heating support 42 is provided at the end of the electric heating element 4 away from the evaporator support 12, and the other end of the electric heating element 4 is connected to the first electric heating support 42.

[0072] In a ducted air conditioner, the electric heating element 4 is responsible for heating the air during operation to meet specific temperature control requirements. For example... Figure 1 As shown, before the improvement, a second electric heating support 43 was also connected to the evaporator support 12. The electric heating element 4 was connected to the second electric heating support 43 by screws or bolts to fix this end of the electric heating element 4. This connection method is relatively troublesome and inconvenient to produce.

[0073] In this embodiment, the duct air conditioner includes an electric heating element 4 and a first electric heating support element 42, such as... Figure 6 and Figure 8As shown, the first electric heating support 42 and the evaporator support 12 cooperate to support the electric heating element 4, ensuring that it maintains a stable position inside the duct unit. The first electric heating support 42 can be installed on the second side plate 5 opposite to the first side plate 2, or it can be installed on other structures of the duct unit. Fasteners serve to connect and fix the electric heating element 4 to the first electric heating support 42.

[0074] Specifically, the connecting post 41 at one end of the electric heating element 4 provides a structural basis for its connection with the evaporator support 12. For example... Figure 4 As shown, the flanged hole 121 on the evaporator support 12 facilitates the insertion of the connecting post 41, and the flanged structure enhances the strength of the area surrounding the hole, preventing problems such as hole wall deformation during the insertion of the connecting post 41 and subsequent use. Figure 6 As shown, the connection of this end of the electric heating element 4 is achieved by the connecting post 41 passing through the flange hole 121. The evaporator support 12 also serves as a support for the electric heating element 4, and the connection of the connecting post 41 through the flange hole 121 greatly improves the installation efficiency of the electric heating element 4. The electric heating support is installed at the end of the electric heating element 4 away from the evaporator support 12, and is used to install the other end of the electric heating element 4.

[0075] The specific dimensions of the connecting column 41 and the flanged hole 121 are determined according to the specifications of the electric heating element 4 and the duct air conditioner. Figure 6 In the embodiment shown, the connecting post 41 has a diameter of 7.8 mm and the flange hole 121 has a diameter of 8 mm, which is slightly larger than the cylindrical end of the electric heating to prevent the electric heating from shaking. The connecting post 41 is inserted into the flange hole 121 of the support member to a depth of at least 10 mm to ensure a firm fixation.

[0076] Please see Figure 6 and Figure 8 In some embodiments of this application, the duct machine also includes fasteners (not shown); a first connecting hole is provided on the first electric heating support 42, and a second connecting hole is provided on the electric heating element 4. At least one of the first connecting hole and the second connecting hole is a strip hole, and the direction of the strip hole is parallel to the axial direction of the connecting column 41; the fastener passes through the first connecting hole and the second connecting hole to connect the electric heating element 4 and the first electric heating support 42.

[0077] In this embodiment, the first connecting hole on the electric heating support and the second connecting hole on the electric heating element 4 are used to connect them via fasteners. At least one of these holes is a strip-shaped hole, and the direction of the strip-shaped hole is parallel to the axial direction of the connecting post 41. The presence of the strip-shaped hole facilitates adjustment of the insertion flange hole 121 of the connecting post 41 during installation. Furthermore, it allows the electric heating element 4 to make slight displacements within a certain range along the direction of the strip-shaped hole, taking into account the thermal expansion and contraction of the electric heating element 4 during operation. When the electric heating element 4 expands due to heat, it can extend along the direction of the strip-shaped hole, avoiding excessive stress caused by restricted thermal expansion, thereby protecting the electric heating element 4 and the connected components from damage.

[0078] In addition, appropriate reinforcing ribs can be added to the integrated intermediate component 11, the evaporator support component 12, and the float switch support component 13 to enhance their strength and ensure the stability of the structure.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ducted fan machine characterized by, The air duct machine comprises: a shell; an integrated intermediate part connected to the shell; an evaporator support connected to the integrated intermediate part; a float switch support connected to the integrated intermediate part; wherein the integrated intermediate part, the evaporator support and the float switch support are integrally formed.

2. The ducted fan engine of claim 1 wherein, The evaporator support is bent relative to the integrated intermediate part, and a first bent part is formed between the integrated intermediate part and the evaporator support, and the float switch support is located on a side of the integrated intermediate part close to the first bent part.

3. The ducted fan engine of claim 2 wherein, The float switch support comprises a first bent part connected to the evaporator support.

4. The ducted fan engine of claim 2 wherein, The first bent part comprises a first reinforcing part, which forms a first groove extending from the integrated intermediate part to the evaporator support on the outside of the first bent part, and a first protrusion extending from the integrated intermediate part to the evaporator support is correspondingly formed on the inside of the first bent part.

5. The ducted fan engine of claim 2 wherein, The shell comprises an air outlet and a first side plate arranged on one side of the air outlet; The first side plate comprises a second bent part bent towards the air outlet, and the integrated intermediate part is connected to the second bent part.

6. The ducted fan engine of claim 5 wherein, The shell further comprises a bottom plate arranged on one side of the air outlet, and the first side plate is connected to the bottom plate; The bottom plate comprises a bottom plate main body and a third bent part arranged on the bottom plate main body and bent towards the air outlet, and the integrated intermediate part is connected to the third bent part.

7. The ducted fan engine of claim 6 wherein, The integrated intermediate part comprises an intermediate part main body abutting against the third bent part and a fourth bent part abutting against the bottom plate.

8. The ducted fan engine of claim 7 wherein, The intermediate part main body and the fourth bent part form a second bent part, which comprises a second reinforcing part forming a second groove extending from the intermediate part main body to the fourth bent part on the outside of the second bent part, and a second protrusion extending from the intermediate part main body to the fourth bent part is correspondingly formed on the inside of the second bent part.

9. The ducted fan engine of claim 1 wherein, The air duct machine further comprises an electric heating element and a first electric heating support; One end of the electric heating element is provided with a connecting column, and the evaporator support is provided with a flanged hole, and the connecting column is arranged in the flanged hole; The first electric heating support is arranged at the end of the electric heating element away from the evaporator support, and the other end of the electric heating element is connected to the first electric heating support.

10. The ducted fan engine of claim 9 wherein, The air duct machine further comprises a fastener, the first electric heating support is provided with a first connecting hole, the electric heating element is provided with a second connecting hole, at least one of the first connecting hole and the second connecting hole is a strip-shaped hole, the direction of the strip-shaped hole is parallel to the axial direction of the connecting column, and the fastener is arranged in the first connecting hole and the second connecting hole to connect the electric heating element and the first electric heating support.

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