CN218763883U

CN218763883U - Air purifying device

Info

Publication number: CN218763883U
Application number: CN202222715241.7U
Authority: CN
Inventors: 刘鑫; 刘拯; 徐勇
Original assignee: Shenzhen Airgle Corp Ltd
Current assignee: Shenzhen Airgle Corp Ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-28
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses an air purification device, which comprises a main shell and a front shell, wherein the front side surface of the main shell is provided with a micro switch and an electric shock connecting part, and the micro switch is used for controlling the on-off of the circuit of the air purification device; the front shell comprises a control panel and a switch jacking portion, the control panel comprises an electric connection matching portion corresponding to the electric shock connecting portion, the front shell is detachably connected with the main shell, the switch jacking portion jacks the micro switch, and the electric connection matching portion is abutted to the electric shock connecting portion. The utility model discloses technical scheme not only can increase air purification device's security, can also accelerate control panel's electric connection speed, and then increases the installation effectiveness of casing.

Description

Air purifying device

Technical Field

The utility model relates to an air purification device technical field, in particular to air purification device.

Background

At present, with the increase of air pollution and the use of a large amount of new building materials and interior decoration materials, the indoor air quality of residents is seriously worried, especially, ventilation is insufficient in winter, or air conditioners and heating are used in closed rooms, the pollution of harmful gases such as formaldehyde, benzene, ammonia and the like generally exceeds the standard, and sometimes, the indoor air pollution degree is 5-10 times higher than that of the outdoor air. The air purifier is a novel household appliance capable of solving the indoor pollution of a family. One can remove formaldehyde, remove dust suspended in air, absorb smoke, sterilize and disinfect, adsorb odor and the like, and has remarkable purification effect. The purifier with the anion generating function can also supplement anions in the air, is beneficial to human health, and provides a comfortable air environment for users.

And air purifier on the existing market generally is detachable concatenation shell, and at the in-process such as washing and maintenance, generally need earlier the shell after dismantling before, wash again and overhaul, but at the in-process of operation, the operation personnel often can forget to pull out the master plug, can cause like this to wash and overhaul in-process air purification device whole electrified, takes place the incident easily like this, reduces air purification device's security.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing an air purification device, which aims at improving the safety of the air purification device.

In order to achieve the above object, the utility model provides an air purification device, include:

the air purification device comprises a main shell, wherein the front side surface of the main shell is provided with a microswitch and an electric shock connecting part, and the microswitch is used for controlling the on-off of a circuit of the air purification device; and

the front shell comprises a control panel and a switch jacking portion, the control panel comprises an electric connection matching portion corresponding to the electric shock connecting portion, the front shell is detachably connected with the main shell, the switch jacking portion jacks the micro switch, and the electric connection matching portion is abutted to the electric shock connecting portion.

Optionally, the mounting housing of the control panel protrudes from the back surface of the front housing, the electrical connection matching portion and the switch abutting portion are disposed on the back surface of the control panel, the front surface of the control panel is provided with an electrical connection groove corresponding to the back surface, the micro switch and the electric shock connection portion are disposed on the bottom of the electrical connection groove, and the mounting housing is at least partially disposed on the electrical connection groove.

Optionally, the aperture of the electrical connection groove gradually increases from the bottom of the groove to the opening of the groove, and the cross-sectional area of the mounting shell gradually decreases from the direction close to the front shell to the direction far away from the front shell; and/or

The groove wall of the electric connection groove at least partially protrudes out of the front side surface.

Optionally, the electric shock connecting part is configured as an electric shock connecting groove, the electric connection matching part is configured as an electric shock connecting column, and the free end of the electric shock connecting column is abutted against the groove bottom of the electric shock connecting groove.

Optionally, the front side face is provided with a switch arrangement groove, the micro switch is arranged in the switch arrangement groove, and the switch pressing portion is configured into a switch pressing column.

Optionally, the front housing is disposed to be inclined rearward in an upward direction, and an inclination angle between the front housing and a vertical plane ranges from 9 ° to 12 °.

Optionally, a magnetic attraction assembly is arranged between the front shell and the main shell, and the front shell is connected with the main shell through the magnetic attraction assembly.

Optionally, a plug-in component is further arranged between the front shell and the main shell body, the front shell is plugged with the main shell body through the plug-in component, and the magnetic attraction component and the plug-in component are respectively arranged on two opposite sides of the front shell.

Optionally, the magnetic component is disposed on a top side of the front housing, the plug component is disposed on a bottom side of the front housing, the bottom side of the main housing is provided with a plug section extending outward from the main housing, a top surface of the plug section is provided with a plug portion, and a bottom side of the front housing is provided with a plug mating portion corresponding to the plug portion.

Optionally, the magnetic assemblies are provided with multiple sets, and the multiple sets of magnetic assemblies are arranged on the top side of the front shell at intervals.

Optionally, the plug assemblies are provided with a plurality of groups, and the plurality of groups of plug assemblies are arranged at the bottom side of the front shell at intervals.

Optionally, air purification device still includes locating component, locating component includes location muscle and locating rack, the outside supporter is located to the locating rack, the location muscle is located the back of main casing body, the location muscle with the connection can be dismantled to the locating rack.

Optionally, the positioning assembly further includes a bolt, the positioning rib is provided with a first positioning hole, the positioning frame is provided with a second positioning hole corresponding to the first positioning hole, and the bolt sequentially penetrates through the first positioning hole and the second positioning hole to fix the positioning rib and the positioning frame.

The air purification device at least comprises the following beneficial effects:

the technical scheme of the utility model is that the front shell is detachably connected with the main shell, the front side surface of the main shell is covered, the micro switch is arranged on the front side surface, the switch jacking part for starting the micro switch is arranged on the front shell, the switch jacking part corresponds to the micro switch, and when the front shell is arranged on the front side surface, the switch jacking part can jack the micro switch, thereby realizing the passage of the whole circuit of the air purification device; when the front shell is detached from the front side face, the switch top pressing portion is separated from the microswitch, so that a circuit of the whole air purification device is cut off, and the maintenance and cleaning processes of the air purification device can be guaranteed more safely by the aid of the power-off protection device. Furthermore, be equipped with the electric shock connecting portion that supply the control panel electricity to connect at the leading flank, set up the back of shell in the front with control panel's electric connection cooperation portion, when the front shell was installed in the leading flank, electric connection cooperation portion was automatic to support each other with electric shock connecting portion and is pressed the realization electricity and be connected, need not to carry out other steps, only need with the front shell install on the main casing body, can realize control panel's electricity and connect, can accelerate control panel's electric connection speed like this to increase the installation effectiveness of casing. It can be seen that the utility model discloses technical scheme not only can increase air purification device's security, can also accelerate control panel's electric connection speed, and then increases the installation effectiveness of casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of an air purification apparatus according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an exploded view of the air purification apparatus of FIG. 1 from another perspective;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is another exploded view of the air cleaning device of fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an air purification device.

Referring to fig. 1 to 4, in an embodiment of the present invention, the air purification device includes a main housing 100 and a front housing 200, a micro switch 120 and an electric shock connection portion 130 are disposed on a front side 110 of the main housing 100, and the micro switch 120 is used to control the on/off of a circuit of the air purification device; the front case 200 includes a control panel 300 and a switch pressing portion 210, the control panel 300 includes an electrical connection matching portion 310 corresponding to the electrical contact connecting portion 130, the front case 200 is detachably connected to the main case 100, the switch pressing portion 210 presses the micro switch 120, and the electrical connection matching portion 310 abuts against the electrical contact connecting portion 130.

Specifically, the front housing 200 is detachably connected to the main housing 100, covers the front side 110 of the main housing 100, locates the micro switch 120 on the front side 110, locates the switch pushing part 210 for starting the micro switch 120 on the front housing 200, where the switch pushing part 210 is located corresponding to the micro switch 120, and when the front housing 200 is installed on the front side 110, the switch pushing part 210 will push against the micro switch 120, thereby implementing a path of the whole circuit of the air purification apparatus; when the front case 200 is detached from the front side 110, the switch pressing portion 210 is separated from the micro switch 120, so as to cut off the circuit of the whole air purification apparatus.

Furthermore, the control panel 300 in the current market generally realizes the electrical connection of the control panel 300 through a power connection wire, if the housing where the control panel 300 is located needs to be detached, an electrical connector is arranged on the power connection wire, and when the housing where the control panel 300 is located is installed, the male terminal and the female terminal of the electrical connector need to be connected first, and then the housing 320 is installed; in the scheme, the electric shock connecting part 130 for electrically connecting the control panel 300 is arranged on the front side surface 110, the electric connection matching part 310 of the control panel 300 is arranged on the back surface of the front shell 200, when the front shell 200 is installed on the front side surface 110, the electric connection matching part 310 automatically and the electric shock connecting part 130 are mutually abutted to realize electric connection, other steps are not needed, only the front shell 200 is installed on the main shell 100, the electric connection of the control panel 300 can be realized, the electric connection speed of the control panel 300 can be accelerated, and the installation efficiency of the shell is increased. It can be seen that the utility model discloses technical scheme not only can increase air purification device's security, can also accelerate control panel 300's electric connection speed, and then increases the installation effectiveness of casing.

Referring to fig. 2 and 4, alternatively, in an embodiment, the mounting case 320 of the control panel 300 is disposed protruding from the back surface of the front case 200, the electrical connection matching portion 310 and the switch pushing portion 210 are disposed on the back surface of the control panel 300, the front side surface 110 is disposed with the electrical connection groove 140 corresponding to the back surface, the micro switch 120 and the contact connecting portion 130 are disposed on the bottom of the electrical connection groove 140, and the mounting case 320 is at least partially disposed in the electrical connection groove 140; it will be appreciated that mounting housing 320 is disposed at least partially within electrical connection slot 140, and that the slot walls of electrical connection slot 140 interact with the walls of mounting housing 320 to limit the position of mounting housing 320. Because the micro switch 120 and the electric shock connecting part 130 are arranged at the bottom of the electric connection groove 140, the electric connection matching part 310 and the switch pushing and pressing part 210 are arranged at the back of the control panel 300, and the installation shell 320 and the electric connection groove 140 are relatively stable, so that the stability that the switch pushing and pressing part 210 pushes against the micro switch 120 is improved, the stability that the electric shock connecting part 130 and the electric connection matching part 310 push against each other is improved, and the stability that the air purification device is electrified and the stability that the control panel 300 is electrically connected are improved. Of course, the present invention is not limited thereto, and in other embodiments, a limiting structure may be disposed between the front shell 200 and the front side surface 110, for example, a limiting groove is disposed on the front side surface 110, a limiting post is disposed on the front shell 200, and the limiting post is disposed in the limiting groove.

Further, the caliber of the electrical connection groove 140 increases gradually from the groove bottom to the groove opening, and the cross-sectional area of the mounting shell 320 decreases gradually from the front shell 200 to the direction far away from the front shell 200; it will be appreciated that the notches of the electrical connection slots 140 are relatively large and the insertion end of the mounting housing 320 is relatively small, which may facilitate insertion of the mounting housing 320; the wall of the electrical connection groove 140 is gradually inclined to form a flared opening, and the wall of the mounting housing 320 is also inclined, which is advantageous for guiding the insertion of the mounting housing 320, thereby improving the mounting efficiency. Of course, the present invention is not limited thereto, and in other embodiments, the diameter of the electrical connection groove 140 from the bottom of the groove to the opening of the groove may be constant, and the cross-sectional area of the mounting shell 320 from the direction close to the front shell 200 to the direction far away from the front shell 200 is constant.

Further, the walls of the electrical connection groove 140 at least partially protrude from the front side 110; thus, when cleaning is avoided, water can flow out of the front side surface 110 along the groove wall of the electrical connection groove 140, or flow down along the connection between the outer groove wall of the electrical connection groove 140 and the front side surface 110, so as to avoid water flow into the micro switch 120 and the electric shock connection part 130, erosion of the micro switch 120 and the electric shock connection part 130, and safety accidents. Of course, the present invention is not limited thereto, and in other embodiments, the electrical connection groove 140 may be recessed in the front side 110.

Further, in one embodiment, the contact connecting portion 130 is configured as a contact connecting groove, the electrical connection matching portion 310 is configured as a contact connecting post, and the free end of the contact connecting post is pressed against the bottom of the contact connecting groove; therefore, when the front shell 200 is in a detached state, a cleaner or a maintainer mistakenly presses the micro switch 120, and the body mistakenly touches the electric shock connecting part 130 to cause an electric shock. Certainly, the present invention is not limited thereto, and in other embodiments, the electric shock connecting portion 130 may also be configured as an electric connecting post, and a protective sleeve is disposed on the electric connecting post to prevent a cleaner or an overhaul personnel from directly contacting the electric connecting post to cause an electric shock.

Optionally, in an embodiment, the front side 110 is provided with a switch arrangement slot, the micro switch 120 is provided in the switch arrangement slot, and the switch hold-down portion 210 is configured as a switch hold-down; it can be understood that, by disposing the micro switch 120 in the switch arrangement groove, it can be avoided that when the front shell 200 is in the disassembled state, the cleaning personnel or the maintenance personnel mistakenly press the micro switch 120, and the body mistakenly touches the electric shock connection portion 130, which results in electric shock. Certainly, the present invention is not limited to this, and in other embodiments, the micro switch 120 may also be convexly disposed on the front side surface 110, and a protection cover is disposed on the micro switch 120, so as to prevent the cleaning staff or the maintenance staff from mistakenly pressing the micro switch 120.

In other embodiments, the contact connecting portion 130 is configured as a contact connecting groove, the electrical connection fitting portion 310 is configured as a contact connecting post, and the free end of the contact connecting post abuts against the bottom of the contact connecting groove; the front side 110 is provided with a switch arrangement groove, the micro switch 120 is arranged in the switch arrangement groove, and the switch hold-down portion 210 is configured as a switch hold-down.

Optionally, a magnetic attraction component is disposed between the front shell 200 and the main housing 100, and the front shell 200 is connected to the main housing 100 through the magnetic attraction component. The magnetic attraction connector is simple in structure, convenient and fast to connect, free of accurate alignment and capable of being automatically attracted only by the magnet, time is saved, installation speed is accelerated, connection stability of the magnetic attraction connector is high, the magnetic attraction connector is long in service life, the installation mode is flexible, and the magnetic attraction connector can be directly inserted, vertically inserted, laterally slid, in any direction and the like. Of course, the present invention is not limited thereto, and in other embodiments, the front housing 200 and the main housing 100 may be connected by screws.

Further, in one embodiment, the magnetic attraction component may include a magnet disposed on the main housing 100 and a magnetic metal disposed on the front housing 200. In the second embodiment, the magnetic attraction member may include a first magnet provided to the main housing 100 and a second magnet provided to the front housing 200, opposite ends of the first and second magnets having opposite polarities.

Optionally, an insertion assembly 400 is further disposed between the front shell 200 and the main housing 100, the front shell 200 is inserted into the main housing 100 through the insertion assembly 400, and the magnetic attraction assembly and the insertion assembly 400 are respectively disposed on two opposite sides of the front shell 200.

Further, the scheme connects the front shell 200 and the main shell 100 in two connection modes of magnetic attraction connection and insertion connection, so that the connection stability of the front shell 200 and the main shell 100 can be improved.

Moreover, when the front shell 200 and the main shell 100 are installed, only one insertion action is needed, the magnetic attraction component can be automatically attracted, the installation speed is high, and moreover, the magnetic attraction component and the inserting component 400 are respectively arranged on the two opposite sides of the front shell 200, so that the connection stability of the front shell 200 can be further improved. Of course, the present invention is not limited thereto, and in other embodiments, the front shell 200 and the main shell 100 may be connected only by magnetic attraction.

Further, the magnetic attraction component is disposed on the top side of the front shell 200, the insertion component 400 is disposed on the bottom side of the front shell 200, the bottom side of the main shell 100 is provided with an insertion section extending outward from the main shell 100, the top surface of the insertion section is provided with an insertion portion 410, and the bottom side of the front shell 200 corresponding to the insertion portion 410 is provided with an insertion mating portion 420; it can be understood that the insertion parts 410 are disposed at the side sections of the bottom side of the main housing 100 and at the top surfaces of the insertion sections, and the insertion matching parts 420 are disposed at the bottom side of the front housing 200, so that the insertion can be more stable by using the self-weight of the front housing 200, and the connection stability can be increased. Of course, the present invention is not limited thereto, and in other embodiments, the insertion portion 410 may be directly disposed at the bottom side of the main housing 100, and the insertion mating portion 420 is disposed at the bottom side of the front housing 200 corresponding to the insertion portion 410.

Further, in an embodiment, the insertion portion 410 is configured as an insertion groove, and the insertion mating portion 420 is configured as an insertion post, and the insertion post is disposed in the insertion groove. Of course, the present invention is not limited thereto, and in other embodiments, the inserting fitting portion 420 is configured as an inserting groove, the inserting portion 410 is configured as an inserting column, and the inserting column is disposed in the inserting groove.

Optionally, in an embodiment, the magnetic assemblies are provided with a plurality of sets, and the plurality of sets of magnetic assemblies are spaced apart from each other on the top side of the front housing 200; it will be appreciated that this may increase the stability of the connection of the front case 200 with the main case 100. In the second embodiment, the plug assemblies 400 are provided in multiple sets, and the multiple sets of plug assemblies 400 are spaced apart from each other on the bottom side of the front case 200. It can be appreciated that this can increase the stability of the connection of the front case 200 with the main case 100.

In other embodiments, there are multiple sets of magnetic assemblies, and the multiple sets of magnetic assemblies are spaced apart from each other on the top side of the front housing 200; the plug assemblies 400 are provided with a plurality of sets, and the plug assemblies 400 are arranged at the bottom side of the front shell 200 at intervals.

Further, two sets of magnetic assemblies are arranged, and the two sets of magnetic assemblies are respectively arranged on two opposite sides of the top side of the front shell 200; this makes it possible to fix the front case 200 at opposite sides of the top side of the front case 200, increasing the stability of the fixation of the front case 200. Of course, the present invention is not limited thereto, and in other embodiments, three sets of magnetic assemblies may be provided, and the magnetic assemblies are spaced apart from each other at the top side of the front housing 200.

Further, two sets of plug assemblies 400 are provided, and the two sets of plug assemblies 400 are respectively disposed on two opposite sides of the bottom side of the front case 200. This makes it possible to fix the front case 200 at opposite sides of the bottom side of the front case 200, increasing the stability of the fixation of the front case 200. Of course, the present invention is not limited thereto, and in other embodiments, three sets of the plug assemblies 400 may be provided, and are spaced apart from each other at the bottom side of the front housing 200.

Further, in this embodiment, two sets of magnetic assemblies are provided, the two sets of magnetic assemblies are respectively disposed on two opposite sides of the top side of the front housing 200, the two sets of inserting assemblies 400 are respectively disposed on two opposite sides of the bottom side of the front housing 200; the magnetic attraction component and the insertion component 400 are respectively arranged at four corners of the front shell 200, so that the connection stability can be improved.

Referring to fig. 3, optionally, the air purification apparatus further includes a positioning assembly 500, the positioning assembly 500 includes a positioning rib 510 and a positioning frame 520, the positioning frame 520 is disposed on the external support, the positioning rib 510 is disposed on the back surface of the main housing 100, and the positioning rib 510 is detachably connected to the positioning frame 520. Specifically, the external support may be a wall or a fixing plate. Because air purification device's motor can produce the vibration in the use, sets up locating component 500, locates locating component 500's locating rack 520 on the outside support, the support frame is connected with main casing body 100's location muscle 510, can prevent like this that air purification device from taking place to remove in the use with the help of the effort of external support.

Further, the positioning assembly 500 further comprises a pin 530, the positioning rib 510 is provided with a first positioning hole, the positioning frame 520 is provided with a second positioning hole corresponding to the first positioning hole, and the pin 530 penetrates through the first positioning hole and the second positioning hole in sequence to fix the positioning rib 510 and the positioning frame 520, it can be understood that the first positioning hole, the second positioning hole and the pin 530 are arranged, when the positioning rib 510 and the positioning frame 520 are connected, the pin 530 directly penetrates through the first positioning hole and the second positioning hole in sequence, and the connection between the positioning rib 510 and the positioning frame 520 can be realized. Of course, the present invention is not limited thereto, and in other embodiments, the positioning rib 510 and the positioning frame 520 may be hooked or fastened.

Referring to fig. 5, the main housing 100 may alternatively include a side case 150 and a back case 160, the side case 150 being detachably coupled with the back case 160; it will be appreciated that the division of the main housing 100 into the side and back

housings

150 and 160 facilitates servicing and thorough cleaning, increasing the efficiency of servicing and cleanliness of the cleaning.

Furthermore, the side shell 150 and the back shell 160 are connected by screws, because the screw connection has low processing requirement, simple structure, convenient assembly and disassembly and low screw price; the installation efficiency of the side cases 150 and the back case 160 can be increased. Of course, the present invention is not limited thereto, and in other embodiments, the side casing 150 and the back casing 160 may be connected by a snap.

Further, the front case 200 is disposed obliquely rearward in an upward direction, and an inclination angle between the front case 200 and a vertical plane ranges from 9 ° to 12 °; that is, the front case 200 is obliquely disposed toward the rear case 160 in an upward direction, and the inclination angle between the front case 200 and the vertical surface ranges from 9 ° to 12 °, which is advantageous to increase the aesthetic sense of the air cleaning apparatus.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. An air purification apparatus, comprising:

2. The air cleaning device according to claim 1, wherein the mounting case of the control panel is provided to protrude from a back surface of the front case, the electrical connection fitting portion and the switch abutting portion are provided on the back surface of the control panel, the front surface is provided with an electrical connection groove corresponding to the back surface, the micro switch and the electric contact connecting portion are provided on a bottom of the electrical connection groove, and the mounting case is at least partially provided on the electrical connection groove.

3. The air cleaning apparatus according to claim 2, wherein the electrical connection groove has a gradually increasing diameter in a direction from the bottom of the groove to the opening of the groove, and the mounting case has a gradually decreasing cross-sectional area in a direction from the front case toward the rear case; and/or

4. The air purification apparatus of claim 1, wherein the contact connection portion is configured as a contact connection slot, the electrical connection mating portion is configured as a contact connection post, and a free end of the contact connection post abuts against a slot bottom of the contact connection slot; and/or

The front side surface is provided with a switch arrangement groove, the microswitch is arranged in the switch arrangement groove, and the switch jacking part is configured into a switch jacking column; and/or

The front case is disposed to be inclined rearward in an upward direction, and an inclination angle between the front case and a vertical surface ranges from 9 ° to 12 °.

5. The air purification device of claim 1, wherein a magnetic component is disposed between the front housing and the main housing, and the front housing is connected to the main housing through the magnetic component.

6. The air purification device of claim 5, wherein a plug-in component is further disposed between the front housing and the main housing, the front housing is plugged into the main housing through the plug-in component, and the magnetic attraction component and the plug-in component are disposed on two opposite sides of the front housing.

7. The air purification apparatus according to claim 6, wherein the magnetic component is disposed on the top side of the front housing, the plug component is disposed on the bottom side of the front housing, the bottom side of the main housing is provided with a plug section extending outward from the main housing, the top surface of the plug section is provided with a plug portion, and the bottom side of the front housing is provided with a plug mating portion corresponding to the plug portion.

8. The air purification apparatus of claim 7, wherein the magnetic assemblies are provided in a plurality of sets, and the plurality of sets are spaced apart from each other on the top side of the front housing; and/or

The plug-in components are provided with a plurality of groups, and the plurality of groups of plug-in components are arranged at the bottom side of the front shell at intervals.

9. The air purification device according to any one of claims 1 to 8, further comprising a positioning assembly, wherein the positioning assembly comprises a positioning rib and a positioning frame, the positioning frame is arranged on an external support, the positioning rib is arranged on the back surface of the main housing, and the positioning rib is detachably connected with the positioning frame.

10. The air cleaning device according to claim 9, wherein the positioning assembly further comprises a pin, the positioning rib is provided with a first positioning hole, the positioning frame is provided with a second positioning hole corresponding to the first positioning hole, and the pin sequentially penetrates through the first positioning hole and the second positioning hole to fix the positioning rib and the positioning frame.