Fresh air machine

Abstract

The invention relates to the technical field of fresh air equipment, and discloses a fresh air machine which comprises a novel sealing structure, the problem that the sealing performance is reduced due to gasket material aging and disassembly and assembly abrasion can be solved, and the sealing reliability and durability of the whole machine are improved.

Description

Technical Field

[0001] This application relates to the field of fresh air equipment technology, such as a fresh air ventilator. Background Technology

[0002] With increasing emphasis on indoor air quality, fresh air systems have become an important part of modern home environments. To ensure efficient operation and energy consumption, the airtightness design of fresh air systems is crucial. Currently, the industry commonly uses gasket sealing solutions for fresh air system sealing, which rely on elastic materials to achieve a seal under assembly pressure. This solution can meet basic sealing requirements during initial assembly.

[0003] In related technologies, after long-term use of fresh air systems, the gasket material is constantly exposed to temperature and humidity changes and airflow vibrations, making it prone to aging, hardening, or permanent deformation. This leads to a gradual decline in its elastic sealing performance, resulting in a decrease in the overall sealing effect of the unit. Furthermore, the regular maintenance and cleaning required during use, along with frequent disassembly and assembly, further accelerates the wear and deformation of the gasket structure, even causing tearing and leading to seal failure. These problems not only affect the normal operating efficiency of the equipment but also allow unfiltered external air to infiltrate, reducing the quality of the supplied air and impacting the user experience.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, existing fresh air units urgently need a new type of sealing structure that can overcome the problem of decreased sealing performance caused by aging of gasket materials and wear during disassembly and assembly, and improve the reliability and durability of the overall sealing.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a new type of sealing structure for a fresh air blower, which can overcome the problem of decreased sealing performance caused by aging of gasket materials and wear during disassembly and assembly, and improve the reliability and durability of the overall sealing.

[0009] This disclosure provides a fresh air system comprising: a main module, a heat exchange core, a filter assembly, a core cover, and a filter cover. The main module has an internal core mounting cavity and a maintenance sidewall with a core maintenance port communicating with the core mounting cavity. The heat exchange core is installed within the core mounting cavity. The filter assembly is installed within the core mounting cavity and located on one side of the heat exchange core. The core cover is detachably fastened to the core maintenance port, and a filter maintenance port is also provided at a position corresponding to the filter assembly on the core cover. The filter cover is detachably fastened to the filter maintenance port. The distance between the filter maintenance port and the edge of the core cover is greater than or equal to a preset distance to ensure the strength of the core cover.

[0010] In some embodiments, a core-locking protrusion is provided around the periphery of the core cover plate; a core-locking groove is provided corresponding to the core-locking protrusion of the core access port; wherein, the core-locking protrusion is used to lock into the core-locking groove to fasten the core cover plate to the core access port.

[0011] In some embodiments, the height of the core snap-fit ​​protrusion is greater than or equal to 2 mm; the depth of the core snap-fit ​​groove is greater than or equal to 2.5 mm; wherein the depth of the core snap-fit ​​groove is greater than the height of the core snap-fit ​​protrusion.

[0012] In some embodiments, a handle is provided on the side wall of the core cover away from the main module; wherein the handle is configured as a recessed groove structure into the main module.

[0013] In some embodiments, the filter cover is provided with a filter snap-fit ​​protrusion around its periphery; the filter access port is provided with a filter snap-fit ​​groove corresponding to the filter snap-fit ​​protrusion; wherein, the filter snap-fit ​​protrusion is used to snap into the filter snap-fit ​​groove to fasten the filter cover to the filter access port.

[0014] In some embodiments, the height of the filter clip protrusion is greater than or equal to 2 mm; the depth of the filter clip groove is greater than or equal to 2.5 mm; wherein the depth of the filter clip groove is greater than the height of the filter clip protrusion.

[0015] In some embodiments, a handle is provided on the side wall of the filter cover away from the main body module; wherein the handle is configured as a recessed groove structure into the main body module.

[0016] In some embodiments, the fresh air unit includes multiple filter assemblies; the core cover plate is provided with multiple filter access ports at positions corresponding to the multiple filter assemblies.

[0017] In some embodiments, the main module is further provided with a fan mounting cavity, and the maintenance side wall is provided with a fan maintenance port communicating with the fan mounting cavity; the new fan also includes: a fan assembly and a fan cover plate; the fan assembly includes a fan body, which is installed in the fan mounting cavity; the fan cover plate is detachably fastened to the fan maintenance port.

[0018] In some embodiments, a fan locking protrusion is provided around the periphery of the fan cover; a fan locking groove is provided corresponding to the fan locking protrusion in the fan access port; wherein, the fan locking protrusion is used to lock into the fan locking groove to fasten the fan cover to the fan access port.

[0019] The fresh air ventilator provided in this disclosure embodiment can achieve the following technical effects:

[0020] This disclosure provides a fresh air system comprising: a main module, a heat exchange core, a filter assembly, a core cover, and a filter cover. The main module has an internal core mounting cavity and a maintenance sidewall with a core maintenance port communicating with the core mounting cavity. The heat exchange core is installed within the core mounting cavity. The filter assembly is installed within the core mounting cavity and located on one side of the heat exchange core. The core cover is detachably fastened to the core maintenance port, and a filter maintenance port is also provided at a position corresponding to the filter assembly on the core cover. The filter cover is detachably fastened to the filter maintenance port. The distance between the filter maintenance port and the edge of the core cover is greater than or equal to a preset distance to ensure the strength of the core cover. This allows the user to directly remove the filter cover from the core cover and maintain or replace the filter assembly through the filter maintenance port. After replacement, the filter cover is directly fastened back to the filter maintenance port housing. Users can also directly remove the core cover from the core inspection port and then maintain or replace the heat exchange core and filter assembly through the core inspection port. This design can overcome the problem of decreased sealing performance caused by aging of the gasket material and wear during disassembly and assembly, thus improving the reliability and durability of the overall machine's seal.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of a fresh air unit provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the internal structure of a fresh air unit provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of a main module provided in an embodiment of this disclosure;

[0026] Figure 4This is a schematic diagram of the structure of a core cover plate provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of a filter cover provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the structure of a fan cover provided in an embodiment of this disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of a wind turbine assembly provided in an embodiment of this disclosure;

[0030] Figure 8 This is a schematic diagram of the structure of a support assembly provided in an embodiment of this disclosure.

[0031] Figure label:

[0032] 10: Main module; 11: Core mounting cavity; 111: Core inspection port; 112: Filter inspection port; 12: Fan mounting cavity; 121: Fan mounting port; 122: Fan inspection port; 13: Core snap-fit ​​slot; 14: Fan snap-fit ​​slot;

[0033] 20: Core cover plate; 21: Core snap-fit ​​protrusion; 22: Filter screen snap-fit ​​groove;

[0034] 30: Filter screen cover; 31: Filter screen snap-fit ​​protrusion;

[0035] 40: Fan cover plate; 41: Fan locking protrusion; 42: Handle;

[0036] 51: Heat exchange core; 52: Filter assembly;

[0037] 60: Fan assembly; 61: Base; 62: Fan body; 63: Support assembly; 631: First support; 632: Second support; 633: Fastener. Detailed Implementation

[0038] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0039] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0040] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Unless otherwise stated, the term "multiple" means two or more.

[0043] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0044] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0046] like Figures 1 to 8 As shown in the embodiments of this disclosure, a novel sealing structure is provided for a fresh air blower, which can overcome the problem of decreased sealing performance caused by aging of gasket materials and wear during disassembly and assembly, and improve the reliability and durability of the overall machine seal.

[0047] like Figures 1 to 8 As shown, this embodiment of the present disclosure provides a fresh air system including: a main module 10, a heat exchange core 51, a filter assembly 52, a core cover plate 20, and a filter cover plate 30. The main module 10 has an internal core mounting cavity 11 and a maintenance sidewall with a core maintenance port 111 communicating with the core mounting cavity 11. The heat exchange core 51 is installed within the core mounting cavity 11. The filter assembly 52 is installed within the core mounting cavity 11 and located on one side of the heat exchange core 51. The core cover plate 20 is detachably fastened to the core maintenance port 111, and a filter maintenance port 112 is also provided at a position corresponding to the filter assembly 52 on the core cover plate 20. The filter cover plate 30 is detachably fastened to the filter maintenance port 112. The distance between the filter maintenance port 112 and the edge of the core cover plate 20 is greater than or equal to a preset distance to ensure the strength of the core cover plate 20.

[0048] Specifically, the main module 10 constitutes the main frame of the equipment, and its internal structure includes an integrated core mounting cavity 11, which simultaneously accommodates the heat exchange core 51 and the filter assembly 52. ​​The filter assembly 52 is located on one side of the heat exchange core 51. The main module 10 also includes a maintenance sidewall with a core maintenance port 111 communicating with the entire core mounting cavity 11. The heat exchange core 51 is installed within the core mounting cavity 11 for exchanging air heat and humidity. The filter assembly 52 is installed within the core mounting cavity 11, located on one side of the heat exchange core 51, and is used to filter particulate pollutants such as dust and pollen from the air. A core cover 20 is used to detachably close and seal the core maintenance port 111, and a filter maintenance port 112 is constructed on the core cover 20 at a position corresponding to the filter assembly 52. ​​A filter cover 30 is used to detachably close and seal the filter maintenance port 112.

[0049] When only the filter assembly 52 needs maintenance, the user can simply open the filter cover 30 to directly access the filter assembly 52 through the filter access port 112 for quick inspection, cleaning, or replacement. This process does not require disassembling the core cover 20, making the operation extremely simple and quick. If the heat exchange core 51 needs maintenance, the user can open the entire core cover 20 and operate on the heat exchange core 51 through the core access port 111. This allows maintenance of the heat exchange core 51 to be easily completed from the front as well. The distance between the filter access port 112 and the edge of the core cover 20 must be greater than or equal to a preset distance to ensure sufficient material is retained around the filter access port 112 to provide the necessary structural strength and rigidity, preventing the core cover 20 from bending, deforming, or tearing at the opening during disassembly, pressure, or impact, thereby ensuring its structural integrity and sealing reliability as the main maintenance door.

[0050] It can be seen that the new air blower provided in this application can overcome the problem of decreased sealing performance caused by aging of gasket material and wear during disassembly and assembly, and improve the reliability and durability of the overall sealing.

[0051] In practical applications, the distance between the filter access port 112 and the edge of the core cover plate 20 can be set according to the material properties of the cover plate, its overall size, and the stress conditions. For example, the distance between the filter access port 112 and the edge of the core cover plate 20 can be greater than or equal to 1 mm. For example, the distance between the filter access port 112 and the edge of the core cover plate 20 can be 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0052] like Figures 1 to 5 As shown, in some embodiments, the core cover plate 20 is provided with a core snap-fit ​​protrusion 21 around its periphery; the core inspection port 111 is provided with a core snap-fit ​​groove 13 corresponding to the core snap-fit ​​protrusion 21; wherein, the core snap-fit ​​protrusion 21 is used to snap into the core snap-fit ​​groove 13 to fasten the core cover plate 20 to the core inspection port 111.

[0053] Specifically, a core locking protrusion 21 is provided around the periphery of the core cover plate 20, i.e., the edge region of the core cover plate 20. The core locking protrusion 21 is one or a series of structural ridges extending towards the main module 10. A core locking groove 13 is provided around the periphery of the core access port 111, corresponding to the position of the core locking protrusion 21. This locking groove is a recess or bayonet structure used to accommodate and constrain the aforementioned locking protrusion.

[0054] During cover plate installation, align the core cover plate 20 with the core access port 111 and apply positive pressure. Under this pressure, the core snap-fit ​​protrusions 21 around the core cover plate 20 will undergo slight elastic deformation or slide into the core snap-fit ​​groove 13 along the guide structure until fully in place. Once the snap-fit ​​protrusions and snap-fit ​​grooves are fully engaged, the cover plate is firmly fixed in its working position by the interference or interlocking between the structures, achieving a snap-fit ​​seal. When the cover plate needs to be opened for maintenance, the user only needs to apply a pulling force away from the main module 10 to the edge of the core cover plate 20. This pulling force needs to be sufficient to overcome the friction or mechanical constraint between the snap-fit ​​protrusions and the snap-fit ​​grooves. Once this constraint is overcome, the snap-fit ​​protrusions will disengage from the snap-fit ​​grooves, allowing the core cover plate 20 to be removed as a whole. This configuration, with its continuous snap-fit ​​structure around the perimeter, provides a uniform pressing surface for laying sealing material on the inside of the cover plate, which is beneficial for forming a reliable seal.

[0055] In some embodiments, the height of the core snap-fit ​​protrusion 21 is greater than or equal to 2 mm; the depth of the core snap-fit ​​groove 13 is greater than or equal to 2.5 mm; wherein the depth of the core snap-fit ​​groove 13 is greater than the height of the core snap-fit ​​protrusion 21.

[0056] Specifically, the protrusion height of the core snap-fit ​​protrusion 21 is designed to be greater than or equal to 2mm to ensure sufficient gripping depth. If the core snap-fit ​​protrusion 21 is too low, its contact area with the snap-fit ​​groove and the effective interference will be insufficient, potentially leading to weak holding force and easy loosening of the core cover plate 20 under equipment vibration or slight external force. The recess depth of the core snap-fit ​​groove 13 is designed to be greater than or equal to 2.5mm to ensure sufficient space within the groove to accommodate the core snap-fit ​​protrusion 21 and any applicable sealing material.

[0057] In practical applications, the height of the core locking protrusion 21 can be set according to the user's actual needs. For example, the height of the core locking protrusion 21 can be 2mm, 2.1mm, 2.2mm, 2.3mm, or 2.4mm. The depth of the core locking groove 13 can also be set according to the user's actual needs. For example, the depth of the core locking groove 13 can be 2.5mm, 2.6mm, 2.7mm, 2.8mm, or 3mm.

[0058] In some embodiments, the core cover plate 20 is provided with a handle 42 on the side wall facing away from the main body module 10; wherein the handle 42 is configured as a groove structure recessed into the main body module 10.

[0059] Specifically, a handle 42 is provided on the outer wall of the core cover plate 20 facing away from the main module 10. This handle 42 is specifically configured as a recessed groove structure inwards from the main module 10; that is, the handle 42 is a negative space structure formed by the concave deformation of the material itself, allowing for finger contact and force application. When the core cover plate 20 needs to be removed, the user's fingers can naturally be placed within this recessed groove structure. The sidewall of the groove provides a clear point of force application and guidance for the fingers, allowing the user to easily and securely hook the cover plate. Subsequently, the user only needs to apply force in the direction away from the main module 10, and the pulling force applied by the fingers within the groove can be effectively transmitted to the entire cover plate, overcoming the holding force between the core locking protrusion 21 and the core locking groove 13, thereby smoothly removing the cover plate. This design prevents accidental bumps or breakage during transportation, installation, or daily use, resulting in better durability.

[0060] like Figures 1 to 5 As shown, in some embodiments, the filter cover plate 30 is provided with a filter snap-fit ​​protrusion 31 around its periphery; the filter access port 112 is provided with a filter snap-fit ​​groove 22 corresponding to the filter snap-fit ​​protrusion 31; wherein, the filter snap-fit ​​protrusion 31 is used to snap into the filter snap-fit ​​groove 22 to fasten the filter cover plate 30 to the filter access port 112.

[0061] Specifically, a filter screen engaging protrusion 31 is provided around the periphery of the filter screen cover 30, i.e., the edge area of ​​the filter screen cover 30. The filter screen engaging protrusion 31 is one or a series of structural ridges extending towards the main body module 10. A filter screen engaging groove 22 is provided around the periphery of the filter screen inspection port 112, corresponding to the position of the filter screen engaging protrusion 31. This engaging groove is a recess or bayonet structure used to accommodate and constrain the aforementioned engaging protrusion.

[0062] During cover installation, align the filter cover 30 with the filter access port 112 and apply positive pressure. Under this pressure, the filter snap-fit ​​protrusions 31 around the filter cover 30 will undergo slight elastic deformation or slide into the filter snap-fit ​​groove 22 along the guide structure until fully in place. Once the snap-fit ​​protrusions and snap-fit ​​grooves are fully engaged, the cover is firmly fixed in its working position by the interference or interlocking between the structures, achieving a snap-fit ​​seal. When the cover needs to be opened for maintenance, the user only needs to apply a pulling force away from the main module 10 to the edge of the filter cover 30. This pulling force needs to be sufficient to overcome the friction or mechanical constraint between the snap-fit ​​protrusions and the snap-fit ​​grooves. Once this constraint is overcome, the snap-fit ​​protrusions will disengage from the snap-fit ​​grooves, allowing the filter cover 30 to be removed as a whole. This continuous snap-fit ​​structure provides a uniform pressing surface for laying sealing material on the inside of the cover, which is beneficial for forming a reliable seal.

[0063] In some embodiments, the height of the filter clip protrusion 31 is greater than or equal to 2 mm; the depth of the filter clip groove 22 is greater than or equal to 2.5 mm; wherein the depth of the filter clip groove 22 is greater than the height of the filter clip protrusion 31.

[0064] Specifically, the protrusion height of the filter screen snap-fit ​​protrusion 31 is designed to be greater than or equal to 2mm to ensure sufficient gripping depth. If the height of the filter screen snap-fit ​​protrusion 31 is too low, its contact area and effective interference with the snap-fit ​​groove will be insufficient, potentially resulting in weak holding force, and the filter screen cover 30 may easily loosen under equipment vibration or slight external force. The recess depth of the filter screen snap-fit ​​groove 22 is designed to be greater than or equal to 2.5mm to ensure sufficient space within the groove to accommodate the filter screen snap-fit ​​protrusion 31 and any sealing material that may adhere to it.

[0065] In practical applications, the height of the filter clip protrusion 31 can be set according to the user's actual needs. For example, the height of the filter clip protrusion 31 can be 2mm, 2.1mm, 2.2mm, 2.3mm, or 2.4mm. The depth of the filter clip groove 22 can also be set according to the user's actual needs. For example, the depth of the filter clip groove 22 can be 2.5mm, 2.6mm, 2.7mm, 2.8mm, or 3mm.

[0066] In some embodiments, the filter cover 30 is provided with a handle 42 on the side wall facing away from the main body module 10; wherein the handle 42 is configured as a groove structure recessed into the main body module 10.

[0067] Specifically, a handle 42 is provided on the outer wall of the filter cover 30 facing away from the main module 10. This handle 42 is specifically configured as a recessed groove structure inwards from the main module 10; that is, the handle 42 is a negative space structure formed by the concave deformation of the material itself, allowing for finger contact and force application. When the filter cover 30 needs to be removed, the user's fingers can naturally be placed within this recessed groove structure. The sidewall of the groove provides a clear point of force application and guidance for the fingers, allowing the user to easily and securely hook the cover. Subsequently, the user only needs to apply force in the direction away from the main module 10, and the pulling force applied by the fingers within the groove can be effectively transmitted to the entire cover, overcoming the holding force between the filter snap protrusion 31 and the filter snap groove 22, thereby smoothly removing the cover. This design prevents accidental bumps or breakage during transportation, installation, or daily use, resulting in better durability.

[0068] like Figures 1 to 5 As shown, in some embodiments, the fresh air unit includes multiple filter assemblies 52; the core cover plate 20 is provided with multiple filter access ports 112 at positions corresponding to the multiple filter assemblies 52.

[0069] Specifically, on the core cover plate 20, a dedicated filter access port 112 is independently provided in the area corresponding to the installation position of each filter assembly 52. ​​For example, if there are two filter assemblies 52 in the equipment, there will be two filter access ports 112 on the core cover plate 20; if there are three filter assemblies 52, there will be three corresponding filter access ports 112. With this arrangement, users can perform independent and precise maintenance on multiple filter assemblies 52 according to their service life and degree of clogging.

[0070] like Figures 1 to 8 As shown, in some embodiments, the main module 10 also has a fan mounting cavity 12 inside, and the maintenance side wall is provided with a fan maintenance port 122 communicating with the fan mounting cavity 12; the new fan also includes: a fan assembly 60 and a fan cover plate 40; the fan assembly 60 includes a fan body 62, which is installed in the fan mounting cavity 12; the fan cover plate 40 is detachably fastened to the fan maintenance port 122.

[0071] Specifically, the main module 10 forms the main frame of the equipment, and its internal structure includes a dedicated fan mounting cavity 12 to accommodate and protect the fan assembly 60. A fan mounting port 121 is provided on the mounting side wall, connecting to the internal fan mounting cavity 12, serving as a channel for installing the fan assembly 60 into the equipment. A fan maintenance port 122 is provided on the maintenance side wall, also connecting to the fan mounting cavity 12, providing a front-end channel for future fan maintenance, inspection, or replacement. The fan body 62 is detachably mounted on the base 61, and is mounted on the side of the base 61 facing the interior of the main module 10. The fan cover 40 is detachably fastened and sealed at the fan maintenance port 122, ensuring the overall sealing and aesthetics of the equipment during operation.

[0072] In this way, the base 61 of the fan assembly 60 can be fixedly installed on the mounting side wall corresponding to the fan mounting port 121, allowing the fan body 62 to be installed from the side of the equipment through the fan mounting port 121. This provides ample operating space, facilitates tool use, and enables convenient side installation. Then, the fan cover 40 is fastened to the fan inspection port 122 on the inspection side wall to seal the fan mounting cavity 12, completing the assembly. When a new fan is put into use and requires maintenance, simply open the fan cover 40 from the front of the equipment to directly expose the fan body 62, allowing for inspection, maintenance, or direct removal from the base 61. The entire process requires no operation from the mounting side, enabling convenient front-side maintenance. This configuration, by placing the base 61 of the fan assembly 60 and the fan access port 122 on two adjacent side walls respectively, separates and integrates the two operation paths of side installation and front maintenance into the same equipment, thereby simultaneously achieving the convenience of production line assembly and the convenience of end-user maintenance, thus meeting the dual requirements of installation efficiency and maintenance convenience.

[0073] like Figures 1 to 8 As shown, in some embodiments, the fan cover plate 40 is provided with a fan snap-fit ​​protrusion 41 around its periphery; the fan access port 122 is provided with a fan snap-fit ​​groove 14 corresponding to the fan snap-fit ​​protrusion 41; wherein, the fan snap-fit ​​protrusion 41 is used to snap into the fan snap-fit ​​groove 14 to fasten the fan cover plate 40 to the fan access port 122.

[0074] Specifically, a fan engaging protrusion 41 is provided around the periphery of the fan cover plate 40, i.e., the edge area of ​​the fan cover plate 40. The fan engaging protrusion 41 is one or a series of structural ridges extending towards the main module 10. A fan engaging groove 14 is provided around the periphery of the fan access port 122, corresponding to the position of the fan engaging protrusion 41. This engaging groove is a recess or latch structure used to accommodate and constrain the aforementioned engaging protrusion.

[0075] During cover plate installation, align the fan cover plate 40 with the fan access port 122 and apply positive pressure. Under this pressure, the fan locking protrusions 41 around the fan cover plate 40 will undergo slight elastic deformation or slide into the fan locking groove 14 along the guide structure until fully in place. Once the locking protrusions and locking grooves are fully engaged, the cover plate is firmly fixed in its working position by the interference or interlocking between the structures, achieving a snap-fit ​​seal. When the cover plate needs to be opened for maintenance, the user only needs to apply a pulling force away from the main module 10 to the edge of the fan cover plate 40. This pulling force needs to be sufficient to overcome the friction or mechanical constraint between the locking protrusions and the locking grooves. Once this constraint is overcome, the locking protrusions will disengage from the locking grooves, allowing the fan cover plate 40 to be removed as a whole. This configuration, with its continuous circumferential locking structure, provides a uniform pressing surface for laying sealing material on the inside of the cover plate, which is beneficial for forming a reliable seal.

[0076] like Figure 6 As shown, in some embodiments, the fan cover 40 is provided with a handle 42 on the side wall facing away from the main module 10; wherein, the handle 42 is configured as a groove structure recessed into the main module 10.

[0077] Specifically, a handle 42 is provided on the outer wall of the fan cover 40 facing away from the main module 10. This handle 42 is specifically configured as a recessed groove structure inwards from the main module 10; that is, the handle 42 is a negative space structure formed by the concave deformation of the material itself, allowing for finger contact and force application. When the fan cover 40 needs to be removed, the user's fingers can naturally be placed within this recessed groove structure. The sidewall of the groove provides a clear point of force application and guidance for the fingers, allowing the user to easily and firmly hook the cover. Subsequently, the user only needs to apply force in the direction away from the main module 10, and the pulling force applied by the fingers within the groove can be effectively transmitted to the entire cover, overcoming the holding force between the fan locking protrusion 41 and the fan locking groove 14, thereby smoothly removing the cover. This design prevents accidental bumps or breakage during transportation, installation, or daily use, resulting in better durability.

[0078] In some embodiments, the handle 42 includes a recess and a gripping portion. The recess is recessed toward the main body module 10, and the recess has a gripping opening on the surface of the fan cover plate 40; the gripping portion is connected to the edge of the gripping opening and extends toward the gripping opening; wherein there is a gap between the gripping portion and at least one edge of the gripping opening.

[0079] Specifically, the recessed portion is recessed towards the interior of the main module 10, and this recessed portion forms a gripping opening on the surface of the fan cover 40. The gripping opening provides visual and tactile guidance for the user's fingers to enter and position. The gripping portion connects to one or more edges of the gripping opening and extends towards the central area of ​​the gripping opening. Simultaneously, there is a gap between the gripping portion and at least one edge of the gripping opening. When the user needs to remove the cover, their fingers are inserted through the gripping opening, then pressed against and pressed against the lower surface of the gripping portion, and then the user applies outward force to remove the fan cover 40. This design makes it easier for the user to remove the fan cover 40 from the fan access port 122.

[0080] like Figure 6 As shown, in some embodiments, the fan cover 40 is provided with a plurality of handles 42; wherein, the upper half and the lower half of the fan cover 40 are each provided with at least one handle 42.

[0081] Specifically, the fan cover 40 is equipped with multiple handles 42, which are spaced apart on the upper and lower halves of the cover 40. Arranging the handles 42 on both halves ensures that regardless of the user's posture, at least one handle 42 is within their natural and comfortable arm range of motion, allowing for easy application of force without awkward tiptoeing or excessive bending. Furthermore, during disassembly, the cover may experience slight twisting due to unilateral force, causing additional friction or even jamming of the locking structure on the other side, making disassembly more difficult. Therefore, by symmetrically or evenly arranging the handles 42 on both the upper and lower halves, the user can choose to apply force to both handles 42 simultaneously. This generates a balanced, vertical pulling force on the cover, effectively preventing uneven force distribution and allowing the cover to smoothly detach from the locking groove, making the disassembly process easier and more reliable.

[0082] In some practical applications, the upper half of the fan cover 40 is provided with one handle 42, and the lower half of the fan cover 40 is provided with two handles 42. The two handles 42 on the lower half of the fan cover 40 are spaced apart in the horizontal direction.

[0083] like Figures 7 to 8 As shown, in some embodiments, the fan assembly 60 further includes a support assembly 63. The support assembly 63 includes a first side connected to the base 61 and a second side connected to the fan, and there is a gap between the first side and the second side of the support assembly 63 so that the distance between the fan and the base 61 is greater than or equal to a preset distance.

[0084] Specifically, the bracket assembly 63 has a first side connected to the base 61 and a second side connected to the fan body 62. A gap exists between the first and second sides of the bracket assembly 63, ensuring that after the fan body 62 is mounted onto the base 61 via the bracket assembly 63, the distance between the fan body 62 and the base 61 is greater than or equal to a preset distance. This arrangement ensures that when the user opens the access panel from the front, there is sufficient space to disconnect the electrical connectors or loosen the fasteners 633 between the fan body 62 and the base 61, allowing for easy removal of the fan body 62 from the bracket assembly 63. Simultaneously, the fan generates vibration during operation. The bracket assembly 63, by separating the fan body 62 from the base 61, provides physical space for installing vibration damping pads, flexible joints, and other vibration reduction and noise reduction measures along the connection path, helping to prevent vibration from being directly transmitted to the main module 10 housing, thereby reducing overall machine noise.

[0085] In practical applications, the distance between the fan and the base 61 can be set according to the user's actual needs. For example, the distance between the fan and the base 61 can be greater than or equal to 1mm. For instance, the distance between the fan and the base 61 can be 1mm, 2mm, 3mm, 4mm, or 5mm.

[0086] like Figures 7 to 8 As shown, in some embodiments, the support assembly 63 includes a first support 631 and a second support 632. The first support 631 is fixedly installed on the base 61; the second support 632 is fixedly installed on the fan body 62; wherein the second support 632 is detachably installed on the first support 631.

[0087] Specifically, the first bracket 631 is fixedly installed on the base 61. For example, the first bracket 631 can be permanently combined with the base 61 by welding, riveting, or screw fastening to form a basic installation platform. The second bracket 632 is fixedly installed on the fan body 62 and forms a sub-module with the fan body 62. The first bracket 631 and the second bracket 632 are independent of each other. In the final assembly step of the fan assembly 60, the second bracket 632, which already has the fan body 62 installed, is detachably installed onto the first bracket 631, which is already fixed on the base 61, using snap-fit ​​parts or fasteners 633. In this way, the fan body 62 and the second bracket 632 can be pre-assembled into a sub-module at one workstation. Similarly, the base 61 can also be pre-assembled with the first bracket 631. The detachable connection between the two modules greatly improves production efficiency and assembly consistency. At the same time, when the fan needs to be replaced, maintenance personnel do not need to deal with multiple screws or complex connections. Simply disconnect the connection between the second bracket 632 and the first bracket 631, and the wind turbine body 62 and the second bracket 632 can be removed together. Then, a new pre-installed module can be installed, making the maintenance process simpler and faster.

[0088] like Figures 7 to 8 As shown, in some embodiments, the first bracket 631 and the second bracket 632 are respectively provided with connection holes, and the connection holes are located at positions corresponding to the fan access port 122; the bracket assembly 63 also includes a fastener 633. The fastener 633 passes through the connection holes of the second bracket 632 and the first bracket 631 sequentially from the side of the first bracket 631 and the second bracket 632 facing the fan access port 122, so as to install the second bracket 632 onto the first bracket 631.

[0089] Specifically, the first bracket 631 and the second bracket 632 are respectively provided with connection holes, that is, when the second bracket 632 is placed on the first bracket 631, their respective connection holes are concentrically aligned. At the same time, the connection holes of the first bracket 631 and the second bracket 632 are located in positions corresponding to the fan access port 122, meaning that when the fan cover 40 is opened, the user can directly access the connection holes of the first bracket 631 and the second bracket 632 through the fan access port 122. This arrangement ensures that the connection holes are located within the area directly opposite the fan access port 122, thus allowing tightening and loosening operations to be performed from the front of the equipment.

[0090] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A fresh air ventilator, characterized in that, include: The main module (10) has a core mounting cavity (11) inside. The main module (10) also includes a maintenance sidewall, which is provided with a core maintenance port (111) communicating with the core mounting cavity (11). A heat exchange core (51) is installed inside the core mounting cavity (11); The filter assembly (52) is installed in the core mounting cavity (11) and is located on one side of the heat exchange core (51); The core cover plate (20) is detachably fastened to the core access port (111), and the core cover plate (20) is also provided with a filter access port (112) at the position corresponding to the filter assembly (52); and, The filter cover (30) is detachably fastened to the filter access port (112); The distance between the filter inspection port (112) and the edge of the core cover plate (20) is greater than or equal to a preset distance to ensure the strength of the core cover plate (20).

2. The fresh air system according to claim 1, characterized in that, The core cover plate (20) is provided with core snap-fit ​​protrusions (21) around its periphery; and, The core inspection port (111) is provided with a core snap-fit ​​groove (13) corresponding to the core snap-fit ​​protrusion (21); The core snap-fit ​​protrusion (21) is used to snap into the core snap-fit ​​groove (13) to fasten the core cover plate (20) to the core inspection port (111).

3. The fresh air system according to claim 2, characterized in that, The height of the core snap-fit ​​protrusion (21) is greater than or equal to 2 mm; and... The depth of the core snap-fit ​​groove (13) is greater than or equal to 2.5 mm; The depth of the core snap-fit ​​groove (13) is greater than the height of the core snap-fit ​​protrusion (21).

4. The fresh air system according to claim 1, characterized in that, The core cover plate (20) is provided with a handle (42) on the side wall facing away from the main module (10); The handle (42) is configured as a recessed groove structure that is recessed into the main body module (10).

5. The fresh air system according to claim 1, characterized in that, The filter cover plate (30) is provided with filter snap-fit ​​protrusions (31) around its periphery; and, The filter inspection port (112) is provided with a filter clip groove (22) corresponding to the filter clip protrusion (31); The filter screen snap-fit ​​protrusion (31) is used to snap into the filter screen snap-fit ​​groove (22) to fasten the filter screen cover (30) to the filter screen inspection port (112).

6. The fresh air system according to claim 5, characterized in that, The height of the filter clip protrusion (31) is greater than or equal to 2 mm; and... The depth of the filter clip slot (22) is greater than or equal to 2.5 mm; The depth of the filter clip groove (22) is greater than the height of the filter clip protrusion (31).

7. The fresh air system according to claim 1, characterized in that, The filter cover (30) is provided with a handle (42) on the side wall facing away from the main module (10); The handle (42) is configured as a recessed groove structure that is recessed into the main body module (10).

8. The fresh air system according to claim 1, characterized in that, The fresh air unit includes multiple filter assemblies (52); and, The core cover plate (20) is provided with a plurality of filter inspection ports (112) at positions corresponding to the plurality of filter assemblies (52).

9. The fresh air unit according to any one of claims 1 to 8, characterized in that, The main module (10) also has a fan installation cavity (12) inside, and the maintenance side wall is provided with a fan maintenance port (122) communicating with the fan installation cavity (12); The fresh air system also includes: A fan assembly (60) includes a fan body (62) installed within the fan mounting cavity (12); and, The fan cover (40) is detachably fastened to the fan access port (122).

10. The fresh air system according to claim 9, characterized in that, The fan cover plate (40) is provided with fan engaging protrusions (41) around its perimeter; and, The fan inspection port (122) is provided with a fan snap-fit ​​groove (14) corresponding to the fan snap-fit ​​protrusion (41); The fan snap-fit ​​protrusion (41) is used to snap into the fan snap-fit ​​groove (14) to fasten the fan cover plate (40) to the fan inspection port (122).

Images