Evaporator assembly and air conditioning unit
Patent Information
- Application Number
- CN202522571081.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-03
AI Technical Summary
The evaporator of existing integrated air conditioning units is prone to forming leakage channels under the impact of high-pressure airflow, resulting in airflow leakage and affecting heat exchange efficiency.
The evaporator is enclosed within the fan shroud using a covering method. The sealing structure is fixedly fitted to the fan shroud to form a closed air duct. The sealing structure fits the outer wall of the refrigeration pipes to prevent air leakage.
It improves the sealing effect and reliability of the evaporator, ensures efficient airflow, and enhances the stability and reliability of the evaporator components.
Smart Images
Figure CN224933007U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of heat exchange technology, and more specifically, to an evaporator assembly and an air conditioning unit. Background Technology
[0002] With the rapid development of the air transport industry, aircraft ground support equipment is developing towards multi-functionality and miniaturization. As a core ground service equipment that integrates cooling, heating and power supply functions, the air conditioning and power supply unit is widely used in aircraft ground support operations on airport aprons.
[0003] The evaporator of existing integrated air conditioning units, as the core heat exchange component of the air conditioning system, needs to form a sealed air duct with the fan shroud to ensure efficient airflow. However, the gaps formed during the assembly of multiple fan shrouds can easily become leakage channels under the impact of high-pressure airflow. At the same time, under 40 kPa high pressure, the locations where the refrigerant pipes pass through the fan shrouds can lead to airflow leakage, causing significant losses and affecting the heat exchange efficiency of the air conditioning system. Utility Model Content
[0004] This invention provides an evaporator assembly and an air conditioning unit that reduce leakage risk and improve sealing performance.
[0005] According to a first aspect of the present invention, an evaporator assembly is provided, comprising: A fan hood, which is provided with an air inlet and an air outlet; The evaporator is installed inside the shroud; A sealing structure and a refrigeration pipeline are provided. The sealing structure is disposed on the fan shroud, and the refrigeration pipeline passes through the sealing structure and is connected to the evaporator. The sealing structure is attached to the outer wall of the refrigeration pipeline for sealing between the fan shroud and the refrigeration pipeline.
[0006] In some embodiments, the sealing structure includes: A fixing component is connected to the fan shroud, the fan shroud is provided with a first through hole, and the refrigeration pipe passes through the fixing component and the first through hole; A sealing sleeve is fitted over the outside of the refrigeration pipe and located between the refrigeration pipe and the fixing component; Multiple clamping members are connected to the fixing member and are configured to converge toward each other to clamp the sealing sleeve so that the inner wall of the sealing sleeve fits against the outer wall of the refrigeration pipe.
[0007] In some embodiments, the fastener includes: The main body is connected to the wind cover. The main body is provided with a second through hole corresponding to the first through hole. The first through hole and the second through hole are connected. The sealing sleeve passes through the first through hole and the second through hole. The mounting part is located on the side of the main body facing the shroud, and the clamping member is detachably connected to the mounting part.
[0008] In some embodiments, there are multiple mounting parts, and the clamping members are disposed between two adjacent mounting parts and connected to them respectively. The multiple mounting parts and the multiple clamping members are closed to form a ring structure, and the sealing sleeve passes through the ring structure.
[0009] In some embodiments, the clamping member has an arcuate surface on the side facing the sealing sleeve, and the arcuate surface can fit against the outer wall of the sealing sleeve.
[0010] In some embodiments, the sealing structure further includes: A first sealing element is disposed between the clamping element and the wind cover, and a sealing sleeve passes through the first sealing element.
[0011] In some embodiments, the shroud includes: A housing having an opening; A cover plate, which is disposed over the opening and detachably connected to the housing; A second sealing element is disposed between the cover plate and the housing.
[0012] In some embodiments, the housing is a one-piece molded structure; And / or, the housing is provided with a reinforcing rib structure.
[0013] In some embodiments, the evaporator assembly further includes: An air valve is provided on the air shroud and corresponding to the air inlet, and is used to adjust the air intake volume of the air inlet; A heater is disposed inside the fan shroud, and the fan shroud is provided with a positioning part for positioning the heater.
[0014] According to a second aspect of the present invention, an embodiment of the present invention also provides an air conditioning unit, including the evaporator assembly described above.
[0015] One embodiment of this utility model has the following advantages or beneficial effects: The evaporator assembly and air conditioning unit provided in this embodiment adopt an encapsulation method, with the entire evaporator housed within a fan shroud. The evaporator and fan shroud form a sealed air duct to ensure efficient airflow and improve the sealing effect of the evaporator. The sealing structure fits snugly against the outer wall of the refrigeration piping and is fixedly fitted with the fan shroud, forming an isolation between the inside of the fan shroud and the external environment. This prevents air leakage from the gap between the refrigeration piping and the fan shroud during high-pressure air delivery, further ensuring the sealing effect and thus guaranteeing the reliability and stability of the evaporator assembly. Attached Figure Description
[0016] To better understand this invention, reference can be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of this invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of this invention will become more apparent by describing exemplary embodiments of the invention in detail with reference to the drawings.
[0017] in: Figure 1 The diagram shown is a structural schematic of the evaporator assembly according to Embodiment 1 of this utility model; Figure 2 The diagram shown is a structural schematic of the shroud in the evaporator assembly of Embodiment 1 of this utility model; Figure 3 The diagram shown is an exploded view of the sealing structure in the evaporator assembly of Embodiment 1 of this utility model; Figure 4 The diagram shown is a structural schematic of the evaporator assembly in Embodiment 2 of this utility model.
[0018] The reference numerals in the attached figures are explained as follows: 1. Fan shroud; 2. Evaporator; 3. Sealing structure; 4. Refrigeration piping; 5. Gas valve; 6. Heater; 10. First through hole; 11. Housing; 111. Opening; 112. Reinforcing rib structure; 113. Positioning part; 12. Cover plate; 13. Second sealing element; 14. Air outlet; 15. Air inlet; 31. Fixing component; 311. Main body; 3111. Second through hole; 312. Mounting part; 313. First sealing component; 32. Sealing sleeve; 33. Clamping component; 331. Arc surface. Detailed Implementation
[0019] The technical solutions of the exemplary embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of this utility model.
[0020] In the description of this utility model, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.
[0021] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Furthermore, in the description of this utility model, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this utility model are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this utility model. It should also be understood that, in the context, when referring to an element or feature connected to another element (one or more) "upper," "lower," "inner," or "outer," it can be directly connected to another element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to another element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.
[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.
[0024] This embodiment provides an evaporator assembly, such as Figure 1As shown, the evaporator assembly includes a fan shroud 1, an evaporator 2, a sealing structure 3, and a refrigeration pipe 4. The evaporator 2 is disposed inside the fan shroud 1. The sealing structure 3 is disposed in the fan shroud 1. The refrigeration pipe 4 passes through the sealing structure 3 and communicates with the evaporator 2. The sealing structure 3 is attached to the outer wall of the refrigeration pipe 4 for sealing between the fan shroud 1 and the refrigeration pipe 4.
[0025] The wind shield 1 has at least one plane, which is parallel to the horizontal plane. The first direction and the second direction are two mutually perpendicular directions in the plane, and the third direction is perpendicular to the plane. That is, the first direction, the second direction and the third direction are mutually perpendicular to each other. For ease of understanding, the first direction can also be called the length direction of the wind shield 1, the second direction can also be called the width direction of the wind shield 1, and the third direction can also be called the height direction of the wind shield 1. The first direction is identified by D1, the second direction by D2, and the third direction by D3.
[0026] The shroud 1 is a hollow structure. The cavity inside the shroud 1 provides space for the evaporator 2. The shroud 1 is provided with an air inlet 15 and an air outlet 14. Air enters the shroud 1 through the air inlet 15, is cooled by the evaporator 2, and then flows out through the air outlet 14 to deliver cool air to equipment such as aircraft cabins.
[0027] The refrigeration pipe 4 passes through the fan shroud 1 and connects to the evaporator 2. The refrigeration pipe 4 is used to supply refrigerant to the evaporator 2 to ensure the refrigeration cycle operation of the evaporator 2. When the air in the fan shroud 1 flows through the evaporator 2, the heat is absorbed by the refrigerant in the evaporator 2, and the air temperature drops rapidly, forming the required cold air.
[0028] The evaporator assembly provided in this embodiment adopts an encapsulation method, with the evaporator 2 entirely housed within the fan shroud 1 to ensure the sealing effect of the evaporator 2. The sealing structure 3 fits against the outer wall of the refrigeration pipe 4 and is fixedly engaged with the fan shroud 1, forming an isolation between the inside of the fan shroud 1 and the external environment. This prevents air leakage from the gap between the refrigeration pipe 4 and the fan shroud 1 during high-pressure air supply, ensuring the sealing effect and thus guaranteeing the reliability and stability of the evaporator assembly.
[0029] In addition, the sealing structure 3 fits into the refrigeration pipe 4, which can absorb the slight deformation between the refrigeration pipe 4 and the fan cover 1 during high-pressure air supply to a certain extent, avoiding sealing failure caused by deformation and meeting the long-term operation requirements of the high-pressure air duct.
[0030] In one embodiment, the evaporator assembly further includes an air valve 5, which is disposed on the shroud 1 and corresponding to the air inlet 15, for adjusting the air intake volume of the air inlet 15.
[0031] The air valve 5 can be either a manual or an electric valve. By adjusting the opening of the air valve 5, the total amount of air entering the shroud 1 can be controlled. Specifically, when the opening of the air valve 5 is adjusted to the maximum, the air intake is increased to meet the large cooling requirements of the aircraft cabin during full-load operation; when the opening of the air valve 5 is adjusted to the minimum, the air intake is reduced to adapt to low-load conditions, thereby avoiding air waste.
[0032] In one embodiment, such as Figure 1 As shown, the evaporator assembly also includes a heater 6, which is disposed inside the shroud 1.
[0033] When the heater 6 is powered on, it generates heat. When air flows through the heater 6, the heat is transferred to the air, causing the air temperature to rise rapidly and providing warm air to the aircraft cabin to meet the heating needs in low-temperature environments.
[0034] The heater 6 works in conjunction with the evaporator 2, and the heating power can be adjusted according to actual needs to avoid the outlet air temperature being too low after cooling, or to directly heat the room temperature air to the target temperature to ensure that the outlet air temperature is stable within a suitable range.
[0035] The number of heaters 6 is multiple, for example, there are two heaters 6, which are symmetrically arranged on both sides of the shroud 1 along the first direction.
[0036] In one embodiment, the shroud 1 is provided with a positioning part 113, which is used to position the heater 6.
[0037] For example, the positioning part 113 is a positioning groove provided on the inner wall of the fan shroud 1, and the heater 6 is at least partially disposed in the positioning groove for positioning the heater 6 and preventing the heater 6 from shifting position. Wherein, along the first direction, the depth of the positioning groove is approximately equal to the thickness of the heater 6, ensuring that the heater 6 and the inner wall of the fan shroud 1 are completely in contact.
[0038] For example, the positioning part 113 may also be a positioning protrusion provided on the inner wall of the fan cover 1. The positioning protrusion can abut against the heater 6 to prevent the heater 6 from shifting position.
[0039] In one embodiment, such as Figure 2 As shown, the hood 1 includes a housing 11 and a cover plate 12. The housing 11 is provided with an opening 111, and the cover plate 12 covers the opening 111 and is detachably connected to the housing 11.
[0040] For example, the opening 111 is provided on one side of the housing 11 along the first direction, that is, the opening 111 is opened on the side of the housing 11. After the evaporator 2 and the heater 6 are placed in the housing 11 through the opening 111, the cover plate 12 is used to cover the opening 111 to seal the opening 111, so that the housing 11 and the cover plate 12 form an integral structure.
[0041] For example, the housing 11 and the cover plate 12 can be detachably connected by bolts, snap-fits, or other means to facilitate installation and maintenance. For instance, bolts can be passed through the cover plate 12 and the housing 11 to fix the cover plate 12 to the housing 11; or, one of the cover plate 12 and the housing 11 on opposite sides can be provided with a buckle and the other with a slot, with the buckle engaging with the slot.
[0042] In one embodiment, the housing 11 is a one-piece molded structure.
[0043] This approach reduces the number of parts assembly steps, lowers assembly production costs, and the integral structure of the housing 11 reduces the risk of leakage due to the number of intermediate connection points.
[0044] In one embodiment, such as Figure 2 As shown, the shell 11 is provided with a reinforcing rib structure 112.
[0045] The reinforcing rib structure 112 can increase the structural strength of the shell 11. The reinforcing rib structure 112 is distributed along the force direction of the shroud 1 on the shell 11 to prevent the shroud 1 from deforming and causing sealing failure when high-pressure air is supplied.
[0046] In one embodiment, such as Figure 2 As shown, the shroud 1 also includes a second sealing element 13, which is disposed between the cover plate 12 and the housing 11.
[0047] The second sealing element 13 can also be referred to as a sealing gasket or sealing strip. The shape of the second sealing element 13 is adapted to the shape of the opening 111. For example, if the opening 111 is a rectangular through hole, the second sealing element 13 is a rectangular frame structure. The second sealing element 13 is sandwiched between the cover plate 12 and the housing 11 for sealing between the cover plate 12 and the housing 11.
[0048] During assembly, the second seal 13 is fitted to the opening 111 of the housing 11. The second seal 13 can cover the assembly gap. Then, the cover plate 12 is pressed against the second seal 13 and fixed to the housing 11 with bolts to complete the overall assembly and sealing of the shroud 1.
[0049] In one embodiment, such as Figure 2 As shown, the fan cover 1 is provided with a first through hole 10. The first through hole 10 is a preset opening on the fan cover 1. The refrigeration pipe 4 passes through the first through hole 10 and is welded and fixed to the evaporator 2 to ensure the connection and sealing of the refrigeration pipe 4 and the evaporator 2.
[0050] In one embodiment, such as Figures 2-3As shown, the sealing structure 3 includes a fixing member 31, a sealing sleeve 32, and multiple clamping members 33. The fixing member 31 is connected to the fan cover 1, and the refrigeration pipe 4 passes through the fixing member 31. The sealing sleeve 32 is fitted over the outside of the refrigeration pipe 4 and is located between the refrigeration pipe 4 and the fixing member 31. The multiple clamping members 33 are connected to the fixing member 31 and are configured to converge towards each other to clamp the sealing sleeve 32, so that the inner wall of the sealing sleeve 32 fits against the outer wall of the refrigeration pipe 4.
[0051] The sealing sleeve 32 is made of an elastic material, such as silicone. The sealing sleeve 32 can also be called a silicone sleeve. The sealing sleeve 32 can pass through the first through hole 10. Since the sealing sleeve 32 has a certain elasticity, it is used to compensate for the processing error of the first through hole 10; or, the sealing sleeve 32 is mated with the first through hole 10 and tightly abuts against the outer wall of the fan cover 1 to ensure the sealing between the refrigeration pipe 4 and the fan cover 1.
[0052] By adjusting the positions of the clamping member 33 and the fixing member 31, the convergence stroke of multiple clamping members 33 can be adjusted to adapt to refrigeration pipes 4 with different diameters, thereby improving structural versatility and reducing design costs.
[0053] During assembly, after the refrigeration pipe passes through the sealing sleeve 32 and the fastener 31, the fastener 31 is fixed to the fan cover 1 by bolts. Multiple clamping parts 33 are installed on the fastener 31 and compress the sealing sleeve 32 so that the sealing sleeve 32 fits against the refrigeration pipe.
[0054] In this manner, when multiple clamping components 33 converge towards each other, they apply uniform radial pressure to the sealing sleeve 32, causing the inner wall of the sealing sleeve 32 to fit tightly against the outer wall of the pipeline, and the outer wall of the sealing sleeve 32 to fit against the inner wall of the fixing component 31, the edge or inner wall of the first through hole 10, forming a full circumferential gapless seal of the pipeline, the sealing sleeve 32, the fixing component 31 and the fan cover 1, so as to block the high-pressure airflow leakage channel and further reduce the risk of leakage.
[0055] In one embodiment, such as Figures 2-3 As shown, the fastener 31 includes a main body 311, which is connected to the hood 1. The hood 1 is provided with a first through hole 10, and the main body 311 is provided with a second through hole 3111 corresponding to the first through hole 10. The first through hole 10 and the second through hole 3111 are connected, and the sealing sleeve 32 can pass through the first through hole 10 and the second through hole 3111.
[0056] For example, the second through hole 3111 is a circular structure, and the main body 311 is an annular structure.
[0057] The second through hole 3111 of the main body 311 is precisely aligned and connected with the first through hole 10 of the shroud 1, forming a positioning reference for the shroud 1 and the main body 311. This ensures that the sealing sleeve 32 is always coaxial during installation, preventing air leakage due to local gaps caused by the misalignment of the sealing sleeve 32. At the same time, the sealing sleeve 32 can also fill the assembly gap between the first through hole 10 and the second through hole 3111, thus sealing the high-pressure airflow leakage channel.
[0058] In one embodiment, such as Figures 2-3 As shown, the fastener 31 also includes a mounting part 312, which is disposed on the side of the main body 311 facing the wind cover 1, and the clamping member 33 is detachably connected to the mounting part 312.
[0059] The mounting part 312 provides an installation position for the clamping member 33. The clamping member 33 and the mounting part 312 are connected by a detachable method such as bolts or snap-fit. For example, the bolts are inserted through the mounting part 312 and the clamping member 33 so that the clamping member 33 provides clamping force for the sealing sleeve 32 to ensure the sealing between the sealing sleeve 32 and the refrigeration pipe 4.
[0060] The mounting part 312 is located on the side of the main body 311 facing the wind cover 1, that is, the mounting part 312 is located inside the main body 311, which can prevent the clamping part 33 from being exposed to the outside and affected by collision and corrosion.
[0061] The main body 311 and the mounting part 312 are integrally formed, which reduces the number of parts assembly steps and lowers production costs.
[0062] In one embodiment, there are multiple mounting parts 312, and clamping members 33 are disposed between two adjacent mounting parts 312 and connected to them respectively. Multiple mounting parts 312 and multiple clamping members 33 are joined together to form a ring structure, and a sealing sleeve 32 is inserted into the ring structure.
[0063] For example, there are two mounting parts 312 and two clamping parts 33. The included angle between the two mounting parts 312 is 180°, and the clamping parts 33 have a semi-circular arc structure. The two mounting parts 312 and the two clamping parts 33 form a ring structure. Along a third direction, one clamping part 33 is located above the mounting part 312, and the other clamping part 33 is located below the mounting part 312. One bolt passes through one end of one mounting part 312 and the two clamping parts 33, and another bolt passes through the other end of the other mounting part 312 and the two clamping parts 33, for clamping the sealing sleeve 32.
[0064] In another embodiment, there are three mounting parts 312 and three clamping members 33. The included angle between two adjacent mounting parts 312 is 120°. The three clamping members 33 converge towards each other to clamp the sealing sleeve 32.
[0065] In one embodiment, such as Figure 3 As shown, the clamping member 33 has an arc surface 331 on the side facing the sealing sleeve 32, and the arc surface 331 can fit against the outer wall of the sealing sleeve 32.
[0066] The arc surface 331 of the clamping member 33 is adapted to the shape of the outer wall of the sealing sleeve 32, increasing the contact area and ensuring that the clamping force is uniformly transmitted along the circumference of the sealing sleeve 32. This avoids sealing gaps caused by local pressure concentration or pressure loss, and makes the inner wall of the sealing sleeve 32 tightly adhere to the outer wall of the refrigeration pipe 4, thereby blocking the leakage channel of high-pressure airflow.
[0067] In one embodiment, such as Figure 3 As shown, the sealing structure 3 also includes a first sealing element 313, which is disposed between the clamping element 33 and the wind cover 1, and the sealing sleeve 32 passes through the first sealing element 313.
[0068] The first seal 313 is made of elastic material and is sandwiched between the clamping member 33 and the fan cover 1 to prevent leakage between them. Simultaneously, the first seal 313 also has a buffering function to some extent, absorbing stress from vibrations in the refrigeration pipe 4 and the impact of high-pressure airflow. This prevents the rigid clamping member 33 from directly contacting the fan cover 1, thus avoiding wear or vibration noise, and reduces the impact of stress transmission on the sealing structure 3 of the fan cover 1, thereby improving the overall operational stability of the machine.
[0069] This embodiment also provides an air conditioning unit, which can also be called an integrated air conditioning power supply unit, and the air conditioning unit includes the evaporator assembly described above.
[0070] Example 2
[0071] This embodiment is similar to Embodiment 1, except that the wind shield 1 has a specific structure.
[0072] The evaporator assembly provided in this embodiment, such as Figure 4 As shown, the opening 111 is located on one side of the housing 11 along a third direction, that is, the opening 111 is opened on the top of the housing 11. The size of the opening 111 is relatively large, which makes it easy for the evaporator 2 and the heater 6 to be placed inside the housing 11 through the opening 111.
[0073] The cover plate 12 of the hood 1 is placed over the opening 111 and is detachably connected to the housing 11. The cover plate 12 is used to block the opening 111, and the second sealing member 13 is disposed between the cover plate 12 and the housing 11 for sealing between the cover plate 12 and the housing 11.
[0074] It should be noted that the embodiments of this utility model are merely one example of the principles employed by the present utility model, as shown in the accompanying drawings and described herein. Those skilled in the art will clearly understand that the principles of this utility model are not limited to any details or components of the apparatus shown in the accompanying drawings or described in the specification.
[0075] It should be understood that this invention is not limited to the detailed structure and arrangement of the components described herein. This invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined herein extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of this invention. The embodiments described in this specification illustrate the best known mode for implementing this invention and will enable those skilled in the art to utilize this invention.
[0076] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.
[0077] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of this utility model is limited only by the appended claims.
Claims
1. An evaporator assembly, characterized in that, include: A fan hood, which is provided with an air inlet and an air outlet; The evaporator is installed inside the shroud; A sealing structure and a refrigeration pipeline are provided. The sealing structure is disposed on the fan shroud, and the refrigeration pipeline passes through the sealing structure and is connected to the evaporator. The sealing structure is attached to the outer wall of the refrigeration pipeline for sealing between the fan shroud and the refrigeration pipeline.
2. The evaporator assembly according to claim 1, characterized in that, The sealing structure includes: A fixing component is connected to the fan shroud, the fan shroud is provided with a first through hole, and the refrigeration pipe passes through the fixing component and the first through hole; A sealing sleeve is fitted over the outside of the refrigeration pipe and located between the refrigeration pipe and the fixing component; Multiple clamping members are connected to the fixing member and are configured to converge toward each other to clamp the sealing sleeve so that the inner wall of the sealing sleeve fits against the outer wall of the refrigeration pipe.
3. The evaporator assembly according to claim 2, characterized in that, The fastener includes: The main body is connected to the wind cover. The main body is provided with a second through hole corresponding to the first through hole. The first through hole and the second through hole are connected. The sealing sleeve passes through the second through hole. The mounting part is located on the side of the main body facing the shroud, and the clamping member is detachably connected to the mounting part.
4. The evaporator assembly according to claim 3, characterized in that, The number of mounting parts is multiple, and the clamping member is disposed between two adjacent mounting parts and connected to them respectively. The multiple mounting parts and the multiple clamping members are joined together to form a ring structure, and the sealing sleeve passes through the ring structure.
5. The evaporator assembly according to claim 2, characterized in that, The clamping member has an arc surface on the side facing the sealing sleeve, and the arc surface can fit against the outer wall of the sealing sleeve.
6. The evaporator assembly according to claim 2, characterized in that, The sealing structure further includes: A first sealing element is disposed between the clamping element and the wind cover, and a sealing sleeve passes through the first sealing element.
7. The evaporator assembly according to any one of claims 1-6, characterized in that, The wind shield includes: A housing having an opening; A cover plate, which is disposed over the opening and detachably connected to the housing; A second sealing element is disposed between the cover plate and the housing.
8. The evaporator assembly according to claim 7, characterized in that, The shell is a one-piece molded structure; And / or, the housing is provided with a reinforcing rib structure.
9. The evaporator assembly according to any one of claims 1-6, characterized in that, Also includes: An air valve is provided on the air shroud and corresponding to the air inlet, and is used to adjust the air intake volume of the air inlet; A heater is disposed inside the fan shroud, and the fan shroud is provided with a positioning part for positioning the heater.
10. An air conditioning unit, characterized in that, Includes the evaporator assembly as described in any one of claims 1 to 9.