Filter part mounting structure for fresh air ventilator and fresh air ventilator

Abstract

The utility model relates to the technical field of air conditioning, and discloses a filter part mounting structure for a fresh air ventilator and the fresh air ventilator. The filter mounting structure includes: a panel; the cover shell covers the panel, the cover shell and the panel jointly define an installation space, and the cover shell is detachably connected with the panel; the filtering part is arranged in the mounting space; and the control piece is arranged in the panel, the housing or the mounting space and used for enabling the fan of the fresh air machine to be powered off in the state that the panel is separated from the housing, the fan is prevented from rotating to hurt an operator, and the safety of dismounting the filter piece is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly relates to a filter mounting structure for a fresh air machine and the fresh air machine. BACKGROUND

[0002] At present, the existing fresh air machine comprises a panel and an outer pipe. The filter is arranged in the outer pipe. When the filter is replaced, the heat exchange core in the outer pipe needs to be disassembled, which causes that the non-professional personnel cannot operate easily. Moreover, when the fresh air machine adopts outer pipes of different sizes, the size of the filter also needs to be replaced, which causes high replacement cost.

[0003] Therefore, a wall type fresh air fan is disclosed in the related art, which comprises an air duct plate, a filter screen and a face cover. The air duct plate comprises an inner air duct and an outer connecting panel arranged from front to back. The inner air duct comprises an inner air duct connecting hole and a fan fixing plate arranged from front to back inside. The fan fixing plate comprises a fan fixing connecting hole arranged on the outer side. The outer connecting panel comprises an outer connecting panel hole, a limiting buckle column hole and a filter screen mounting groove. The outer connecting panel hole is respectively opened at the front end of the outer connecting panel. The limiting buckle column hole is respectively arranged at the left and right sides of the rear end of the outer connecting panel. The filter screen mounting groove is arranged at the rear end of the outer connecting panel. The filter screen is embedded in the filter screen mounting groove. The face cover is arranged at the rear end of the filter screen mounting groove.

[0004] In the process of implementing the embodiments of the present application, it is found that at least the following problems exist in the related art:

[0005] In the related art, the filter screen is arranged between the air duct plate and the face cover, and the filter screen does not need to be arranged in the outer pipe. However, when the filter screen is disassembled, the fresh air machine has a safety hazard.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important constituent elements or delineate the protection scope of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present application provide a filter mounting structure for a fresh air machine and the fresh air machine, so as to solve the problem that the fresh air machine has a safety hazard when the filter screen is disassembled in the related art.

[0009] According to the first aspect of the embodiment of the present application, a filter mounting structure for a fresh air machine is provided, comprising: a panel; a cover, which is arranged on the panel and cooperates with the panel to define a mounting space, wherein the cover is detachably connected with the panel; a filter, which is arranged in the mounting space; and a control component, which is arranged in the panel, the cover or the mounting space, and is used to disconnect the fan of the fresh air machine in a state that the panel and the cover are separated.

[0010] Optionally, the panel is provided with a first magnetic attraction component, the cover is provided with a second magnetic attraction component, the first magnetic attraction component can be magnetically attracted to the second magnetic attraction component to magnetically attract the panel and the cover; and the control component comprises a magnetic sensor, which is used to control whether the fan is disconnected according to a change in a magnetic field caused by a change in a distance between the first magnetic attraction component and the second magnetic attraction component.

[0011] Optionally, the control component comprises a sensor, which is used to detect relative position information of the panel and the cover, and control whether the fan is disconnected according to the relative position information.

[0012] Optionally, the control component comprises a micro switch; the micro switch is arranged on the panel, the cover is provided with a pressing component, the pressing component is separated from the micro switch in a state that the cover and the panel are separated, and the pressing component is arranged on the micro switch in a state that the cover is arranged on the panel; or, the micro switch is arranged on the cover, the panel is provided with a pressing component, the pressing component is separated from the micro switch in a state that the cover and the panel are separated, and the pressing component is arranged on the micro switch in a state that the cover is arranged on the panel.

[0013] Optionally, one of the panel and the cover is provided with a buckle, and the other is provided with a clamping groove, the buckle and the clamping groove are clamped together.

[0014] Optionally, the panel and / or the cover are provided with a limiting structure for limiting the filter.

[0015] Optionally, the limiting structure comprises a limiting rib arranged on the panel and / or the cover, the limiting rib defines a limiting space, and the filter is limited in the limiting space.

[0016] Optionally, the limiting rib is provided with a notch, and the notch is in communication with the limiting space.

[0017] Optionally, the cover is provided with a ventilation opening, and the filter is arranged on the ventilation opening and abuts against a surface of the ventilation opening facing the mounting space.

[0018] According to the second aspect of the embodiment of the present application, a fresh air machine is provided, comprising: an outer pipe, which is arranged on a side of the panel away from the cover; a fan, which is arranged in the outer pipe; and the filter mounting structure for the fresh air machine according to any one of the above embodiments.

[0019] The filter mounting structure for the fresh air machine and the fresh air machine provided by the embodiment of the present application can achieve the following technical effects:

[0020] The filter is arranged in the mounting space for filtering the air flowing through the mounting space, and the panel and the cover are detachably connected instead of being arranged in the outer pipe, so that the heat exchange core does not need to be disassembled when the filter is disassembled, the disassembly of the filter is simplified, and when different sizes of the outer pipe are used, the filter of the corresponding size does not need to be replaced, thereby reducing the replacement cost.

[0021] When the filter is disassembled, the panel and the cover are separated, and when the panel and the cover are in the separated state, the control member controls the fan to be powered off to prevent the fan from rotating to hurt the operator, thereby improving the safety of disassembling the filter.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0024] Figure 1 is a structural schematic view of a fresh air fan provided by an embodiment of the present disclosure;

[0025] Figure 2 is a structural schematic view of a cover provided by an embodiment of the present disclosure;

[0026] Figure 3 is a structural schematic view of a fresh air fan without a cover provided by an embodiment of the present disclosure;

[0027] Figure 4 is a structural schematic view of another fresh air fan provided by an embodiment of the present disclosure;

[0028] Figure 5 is a sectional view in A-A direction in Figure 4

[0029] Figure 6 is a structural schematic view of a fresh air fan without a cover and a filter provided by an embodiment of the present disclosure;

[0030] Figure 7 is a structural schematic view of a panel provided by an embodiment of the present disclosure.

[0031] REFERENCE SIGNS:

[0032] 10: panel; 101: first magnetic attraction member; 102: mounting through hole; 103: limiting rib; 104: limiting space; 105: notch; 106: clamping groove;

[0033] ​20: cover; 201: second magnetic attraction member; 202: vent; 203: buckle;

[0034] 30: core upper shell; 301: filter element;

[0035] 40: filter;

[0036] 50: mounting space. DETAILED DESCRIPTION

[0037] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0038] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0039] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0040] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0041] The term "plurality" means two or more, unless otherwise specified.

[0042] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0043] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0044] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0045] In combination Figures 1-7 As shown in the drawings, the present disclosure provides a filter 40 mounting structure for a fresh air machine, which includes a panel 10, a cover 20, a filter 40 and a control member.

[0046] The fresh air machine includes an outer pipe, a fan, a heat exchange core, a sound insulation member, etc.

[0047] The wall for mounting the fresh air machine is provided with a through hole, and the outer pipe passes through the through hole. The outer pipe defines a containing space 50, and the fan, the heat exchange core and the sound insulation member are all located in the containing space 50.

[0048] The fresh air machine further includes a rainproof cap and a cover 20, the rainproof cap is arranged at one end of the outer pipe extending out of the wall, the panel 10 is arranged indoors, and the outer pipe is connected between the rainproof cap and the panel 10. The rainproof cap is provided with a first air inlet and outlet, the cover 20 is arranged at one end of the panel 10 away from the outer pipe, the cover 20 defines a second air inlet and outlet, and the first air inlet and outlet and the second air inlet and outlet are both in communication with the containing space. Under the drive of the fan, air enters the containing space through one of the first air inlet and outlet and the second air inlet and outlet, and flows out from the other, and exchanges heat with the heat exchange core in the containing space.

[0049] The cover 20 is arranged on the panel 10 and cooperates with the panel 10 to define a mounting space 50, wherein the cover 20 and the panel 10 are detachably connected.

[0050] As Figure 5 The filter 40 is arranged in the mounting space 50.

[0051] When the filter 40 needs to be disassembled, the cover 20 is separated from the panel 10, and the filter 40 is taken out from the mounting space 50 to replace or clean the filter 40. The process is simple, convenient and easy to operate, and ordinary users can also operate it without having to be operated by professional personnel.

[0052] The filter element 40 is located within the installation space 50, and the panel 10 is detachably connected to the housing 20 instead of being located in the outer tube. This simplifies the removal of the filter element 40 by eliminating the need to remove the heat exchange core when removing the filter element 40. Furthermore, when using outer tubes of different sizes, it is not necessary to replace the filter element 40 with one of the corresponding size, thus reducing replacement costs.

[0053] The control unit is located in the panel 10, the housing 20 or the installation space 50, and is used to de-energize the fresh air unit when the panel 10 is separated from the housing 20.

[0054] When the filter element 40 needs to be disassembled, the panel 10 needs to be separated from the cover 20. When the panel 10 and the cover 20 are separated, the control unit controls the fan to cut off the power to prevent the fan from rotating and injuring the operator, thus improving the safety of disassembling the filter element 40.

[0055] When the panel 10 is separated from the cover 20, the control unit de-energizes the fresh air unit's fan. The control unit can de-energize the fan as soon as the panel 10 and cover 20 separate, or it can de-energize the fan when the separation distance between the panel 10 and cover 20 is greater than a preset distance, such as 1 cm.

[0056] During long-term use of the fresh air unit, the panel 10 and the cover 20 may no longer be fully engaged due to aging or other reasons. To prevent the control unit from cutting off the power to the fan and affecting the normal operation of the fresh air unit, the control unit can be set to cut off the power to the fan when the separation distance between the panel 10 and the cover 20 is greater than a preset distance, and not to cut off the power to the fan when the separation distance is less than or equal to the preset distance.

[0057] Regarding the form of the control element, in the first specific embodiment, such as Figure 2 and Figure 3 As shown, the panel 10 is provided with a first magnetic attracting member 101, and the cover 20 is provided with a second magnetic attracting member 201. The first magnetic attracting member 101 can magnetically attract with the second magnetic attracting member so that the panel 10 and the cover 20 are magnetically attracted. The control component includes a magnetic sensitive switch, which is used to control whether the fan is powered off based on the change in magnetic field caused by the change in distance between the first magnetic attracting member 101 and the second magnetic attracting member.

[0058] One of the first magnetic attractor 101 and the second magnetic attractor 201 is a magnet, and the other is a magnet or a metal such as iron, cobalt, or nickel that can attract the magnet.

[0059] The first magnetic attractor 101 and the second magnetic attractor 201 attract each other, thereby achieving mutual attraction between the panel 10 and the cover 20, so that the panel 10 and the cover 20 are fastened in place, realizing the assembly of the panel 10 and the cover 20.

[0060] When the filter 40 needs to be replaced, the cover 20 is separated from the panel 10, the first magnetic attraction member 101 and the second magnetic attraction member 201 are apart from each other, the magnetic field at the magnetic sensitive switch changes, and the magnetic sensitive switch controls the fan to be powered off according to the change of the magnetic field. Specifically, in the state that the panel 10 is separated from the cover 20, the magnetic sensitive switch controls the fan to be powered off.

[0061] In a second specific embodiment, the control member includes a sensor, which is configured to detect the relative position information of the panel 10 and the cover 20, and control the fan to be powered off according to the relative position information.

[0062] The sensor can be a position sensor, which is configured to detect the position of the panel 10 relative to the cover 20, and control the fan to be powered off when the panel 10 and the cover 20 are detected to be in the separated state.

[0063] Alternatively, the sensor can be a distance sensor, which is configured to detect the relative distance between the panel 10 and the cover 20. When the sensor detects that the relative distance between the panel 10 and the cover 20 is greater than a preset distance, it is determined that the cover 20 and the panel 10 are in the separated state, and the control member controls the fan to be powered off at this time.

[0064] In a third specific embodiment, the control member includes a micro switch.

[0065] The micro switch is arranged on the panel 10, and the cover 20 is provided with a pressing member. When the cover 20 is separated from the panel 10, the pressing member is separated from the micro switch. When the cover 20 covers the panel 10, the pressing member presses the micro switch.

[0066] When the cover 20 covers the panel 10, the pressing member presses the micro switch, and the movable contact and the fixed contact of the micro switch are in contact. When the cover 20 is separated from the panel 10, the pressing member is separated from the micro switch, and the movable contact and the fixed contact of the micro switch are separated, so that the fan is controlled to be powered off.

[0067] Alternatively, the micro switch is arranged on the cover 20, and the panel 10 is provided with a pressing member. When the cover 20 is separated from the panel 10, the pressing member is separated from the micro switch. When the cover 20 covers the panel 10, the pressing member presses the micro switch.

[0068] When the cover 20 covers the panel 10, the pressing member presses the micro switch, and the movable contact and the fixed contact of the micro switch are in contact. When the cover 20 is separated from the panel 10, the pressing member is separated from the micro switch, and the movable contact and the fixed contact of the micro switch are separated, so that the fan is controlled to be powered off.

[0069] Optionally, as shown in FIG. 6, the fan is arranged on the panel 10, and the cover 20 is provided with a pressing member. When the cover 20 is separated from the panel 10, the pressing member is separated from the fan. When the cover 20 covers the panel 10, the pressing member presses the fan. Figure 5As shown, one of the panel 10 and the cover 20 is provided with the buckle 203, and the other is provided with the clamping groove 106. The buckle 203 is clamped with the clamping groove 106.

[0070] The buckle 203 is clamped with the clamping groove 106, so as to realize that the cover 20 is arranged on the panel 10, that is, the assembly between the cover 20 and the panel 10. The clamping mode is low in cost and easy to disassemble.

[0071] The clamping groove 106 penetrates the outer surface of the panel 10 or the cover 20 where the clamping groove 106 is arranged. Thus, when the buckle 203 is clamped in the clamping groove 106, the buckle 203 can be exposed to the outer surface of the panel 10 or the cover 20 where the clamping groove 106 is arranged, so as to facilitate the user to break the buckle 203, and realize the separation of the buckle 203 and the clamping groove 106.

[0072] As shown in the figures, Figure 2 The buckle 203 is arranged on the cover 20, and the clamping groove 106 is arranged on the panel 10 and the bottom wall surface of the panel 10. When the buckle 203 is clamped in the clamping groove 106, the buckle 203 is exposed to the bottom wall surface of the panel 10, so as to facilitate the user to break the buckle 203.

[0073] For example, as shown in the figures, Figure 2 , Figure 3 and Figure 5 The mounting space 50 is arranged at the upper end and the middle of the panel 10 and the cover 20. The first magnetic attraction member 101 is arranged at the upper end and the middle of the panel 10, and the second magnetic attraction member 201 is arranged at the upper end and the middle of the cover 20. Thus, the upper end and the middle of the panel 10 are fixed by the magnetic attraction force of the first magnetic attraction member 101 and the second magnetic attraction member. One of the lower end of the panel 10 and the cover 20 is provided with the buckle 203, and the other is provided with the clamping groove 106. The lower end of the panel 10 and the cover 20 is fixed by the buckle 203 and the clamping groove 106. The magnetic sensitive switch is arranged on or near the first magnetic attraction member 101, or arranged on or near the second magnetic attraction member 201. The second magnetic attraction member 201 is in the form of a screw, and the first magnetic attraction member 101 is in the form of a magnet. The number of the first magnetic attraction member 101 is one or more, and the number of the second magnetic attraction member 201 is equal to and corresponds to the number of the first magnetic attraction member 101. For example, the number of the first magnetic attraction member 101 is two, and the first magnetic attraction member 101 is arranged on the opposite sides of the mounting space 50.

[0074] The detachable connection between the panel 10 and the cover 20 can also be in the form of screw connection.

[0075] Optionally, the panel 10 and / or the cover 20 is provided with a limiting structure for limiting the filter element 40.

[0076] The limiting structure limits and fixes the filter element 40, maintains the position of the filter element 40 in the installation space 50, and ensures the normal work of the filter element 40.

[0077] Optionally, as shown in Figure 3 、 Figure 6 and Figure 7 , the limiting structure includes a limiting rib 103 provided on the panel 10 and / or the cover 20, and the limiting rib 103 defines a limiting space 104, and the filter element 40 is limited in the limiting space 104.

[0078] The inner wall surface of the panel 10 and / or the cover 20, i.e. the surface facing the installation space 50, is provided with the limiting rib 103, and the filter element 40 is arranged in the limiting space 104 surrounded by the limiting rib 103. The limiting space 104 limits the filter element 40, and the position of the filter element 40 in the installation space 50 is fixed.

[0079] Optionally, the limiting rib 103 is provided with a gap 105, and the gap 105 is in communication with the limiting space 104.

[0080] When the filter element 40 needs to be taken out, the hand is inserted into the gap 105 so that the hand can contact the filter element 40, and then the filter element 40 is held and taken out from the limiting space 104.

[0081] The limiting rib 103 can be an annular rib extending along the circumference of the filter element 40, or can be in the form of multiple ribs, and the multiple ribs are arranged along the circumference of the filter element 40 in sequence.

[0082] The number of the gap 105 can be one or more, and when there are multiple gaps 105, the multiple gaps 105 are arranged along the circumference of the limiting space 104 in sequence.

[0083] The limiting structure can also not be in the form of the limiting rib 103, for example, a clamping structure, and the filter element 40 is clamped in the clamping structure.

[0084] Optionally, as shown in Figure 5 , the cover 20 is provided with a ventilation opening 202, and the filter element 40 is arranged on the ventilation opening 202 and abuts against the surface of the ventilation opening 202 facing the installation space 50.

[0085] The ventilation opening 202 is a second air inlet / outlet. The filter element 40 is arranged on the ventilation opening 202, and the air entering or flowing to the ventilation opening 202 is filtered by the filter element 40, thereby improving the air quality.

[0086] The filter element 40 abuts against the surface of the ventilation opening 202 facing the installation space 50, which limits the movement of the filter element 40 towards the ventilation opening 202, and further limits the filter element 40.

[0087] The embodiment of the second aspect of the utility model provides a fresh air machine, including the filter piece 40 mounting structure for fresh air machine as any one of the above embodiment.

[0088] The embodiment of the second aspect of the utility model provides a fresh air machine, because including the filter piece 40 mounting structure for fresh air machine as any one of the above embodiment, thus have the all beneficial effect of filter piece 40 mounting structure for fresh air machine as any one of the above embodiment, here no longer repeat.

[0089] The fresh air machine further includes a core upper shell 30, which is arranged in the outer pipe. The panel 10 is provided with a mounting through hole 102, the outer pipe is inserted into the mounting through hole 102 and communicates with the mounting through hole 102, and one end of the core upper shell 30 close to the panel 10 is arranged at the mounting through hole 102.

[0090] As shown in Figure 5 The surface of the filter piece 40 towards the cover shell 20 abuts against the surface of the ventilation opening 202 towards the mounting space 50, and the surface of the filter piece 40 towards the panel 10 abuts against the core upper shell 30, so as to limit the movement of the filter piece 40 in the direction of the panel 10 and the cover shell 20.

[0091] The fresh air machine further includes a filter element 301, which is arranged in the core upper shell 30. The air flowing into the containing space from the first air inlet and outlet sequentially passes through the heat exchange core, the filter element 301 and the filter piece 40, and then flows into the indoor space from the second air inlet and outlet; the air flowing into the containing space from the second air inlet and outlet sequentially passes through the filter piece 40, the filter element 301 and the heat exchange core, and then flows into the outdoor space from the first air inlet and outlet.

[0092] The filter element 301 and the filter piece 40 are different filter components, so that they can filter different impurities. For example, the filter element 301 and the filter piece 40 are filter screens with different mesh sizes.

[0093] The periphery of the circumferential side wall of the filter piece 40 is wrapped with a gasket, which plays a sealing and fastening role for the filter piece 40.

[0094] The fresh air machine further includes a controller, which is connected with the control element and connected with the fan. The controller controls whether the fan is powered off according to the state of the control element. Specifically, the control element feeds back a signal to the controller, and the controller judges that the panel 10 and the cover shell 20 are in a state of separation, and the controller controls the fan to be powered off.

[0095] The control element can also be directly connected to the control circuit of the fan to directly control whether the fan is powered off.

[0096] The above description and drawings suffice to fully enable one skilled in the art to practice the embodiments of the present disclosure. Other embodiments can include structural and other changes. The embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and can be varied in a variety of ways. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A filter mounting structure for a fresh air machine, characterized by, The filter mounting structure for the fresh air machine comprises: a panel; a cover which is arranged on the panel and cooperates with the panel to define a mounting space, wherein the cover is detachably connected with the panel; a filter which is arranged in the mounting space; a control component which is arranged in the panel, the cover or the mounting space and is configured to control the fan of the fresh air machine to be powered off when the panel and the cover are separated.

2. The filter mounting structure for the fresh air machine according to claim 1, wherein the panel is provided with a first magnetic attraction component, the cover is provided with a second magnetic attraction component, the first magnetic attraction component is capable of being magnetically attracted to the second magnetic attraction component to magnetically attract the panel and the cover, and the control component comprises a magnetic sensor which is configured to control the fan to be powered off or not according to a change in a magnetic field caused by a change in a distance between the first magnetic attraction component and the second magnetic attraction component.

3. The filter mounting structure for the fresh air machine according to claim 1, wherein the control component comprises a sensor which is configured to detect relative position information of the panel and the cover and control the fan to be powered off or not according to the relative position information.

4. The filter mounting structure for the fresh air machine according to claim 1, wherein the control component comprises a micro switch; the micro switch is arranged on the panel, the cover is provided with a pressing component, the pressing component is separated from the micro switch when the cover is separated from the panel, and the pressing component is arranged on the micro switch when the cover is arranged on the panel; or the micro switch is arranged on the cover, the panel is provided with a pressing component, the pressing component is separated from the micro switch when the cover is separated from the panel, and the pressing component is arranged on the micro switch when the cover is arranged on the panel.

5. The filter mounting structure for the fresh air machine according to any one of claims 1 to 4, wherein one of the panel and the cover is provided with a buckle, and the other is provided with a clamping groove, and the buckle is clamped to the clamping groove.

6. The filter mounting structure for the fresh air machine according to any one of claims 1 to 4, wherein the panel and / or the cover is provided with a limiting structure for limiting the filter.

7. The filter mounting structure for the fresh air machine according to claim 6, wherein the limiting structure comprises a limiting rib arranged on the panel and / or the cover, and the limiting rib defines a limiting space in which the filter is limited.

8. The filter mounting structure for the fresh air machine according to claim 7, wherein the limiting rib is provided with a gap which is in communication with the limiting space.

9. The filter mounting structure for the fresh air machine according to any one of claims 1 to 4, wherein the cover is provided with a ventilation opening, and the filter is arranged on the ventilation opening and abuts against a surface of the ventilation opening which faces the mounting space. The filter mounting structure for the fresh air machine comprises: an outer tube which is arranged on a side of the panel away from the cover; a fan which is arranged in the outer tube; and the filter mounting structure for the fresh air machine according to any one of claims 1 to 9. ​ ​ ​ ​ 10. A fresh air machine characterized by, ​ ​ ​ ​

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