A purification structure and an air purifier

Abstract

The utility model relates to purifier technical field especially, it is a kind of purification structure and air purifier, purification structure includes outer box, negative pole frame and positive electrode assembly;Outer box is equipped with containing space, air inlet and air outlet;Negative pole frame and positive electrode assembly are all installed in containing space;Negative pole frame is equipped with multiple ventilation holes of interval distribution, and multiple sharp end discharge parts are set around ventilation hole;Positive electrode assembly includes multiple positive pole column, and positive pole column one-to-one penetrates into ventilation hole.The utility model, positive pole column penetrates into the ventilation hole of negative pole frame, and after electrification, it can realize ionization and the technical effect of purifying air, the components of this purification structure are less, assembly operation is convenient, manufacturing cost is low and the purification structure can be washed by water.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to a purification structure and an air purifier. Background Technology

[0002] When people come into contact with and inhale air, viruses and dust particles in the air will be inhaled along with the air, which may harm their health in mild cases and cause various diseases in severe cases. Air purifiers are devices that can adsorb, decompose, or transform various air pollutants, effectively improving air cleanliness. The electrostatic adsorption mechanism is an important component of air purifiers. The electrostatic adsorption mechanism includes multiple positive and negative electrodes arranged alternately. When the positive and negative electrodes are energized, the positive and negative electrodes will adsorb charged dust particles in the air as the air passes through the electrostatic adsorption mechanism.

[0003] An electrostatic adsorption mechanism consisting of multiple positive and negative electrodes requires not only positive conductive posts to connect all the positive electrodes and negative posts to connect all the negative electrodes, but also support posts to rigidly support all the positive and negative electrodes. Existing electrostatic adsorption mechanisms suffer from technical problems such as numerous components, complex assembly operations, and high manufacturing costs. Furthermore, due to the close proximity of the positive and negative electrodes, water residue may remain on the negative posts, negative posts, or support posts after washing the electrostatic adsorption mechanism, potentially leading to a significant short circuit when the mechanism is energized. Utility Model Content

[0004] This utility model provides a purification structure and an air purifier to solve the technical problems of existing electrostatic adsorption mechanisms, such as numerous components, complex assembly operations, and high manufacturing costs.

[0005] An embodiment of this utility model provides a purification structure, including an outer casing, a negative electrode frame, and a positive electrode assembly; the outer casing is provided with a receiving space, an air inlet, and an air outlet, the air inlet and the air outlet respectively connecting to opposite ends of the receiving space; the negative electrode frame and the positive electrode assembly are both installed in the receiving space;

[0006] The negative electrode frame is provided with a plurality of ventilation holes spaced apart, and a plurality of tip discharge sections arranged around the ventilation holes;

[0007] The positive electrode assembly includes multiple positive electrode posts, each of which extends into the ventilation hole.

[0008] Optionally, the outer casing includes a casing body, a first cover plate, and a second cover plate; the accommodating space is disposed on the casing body, the air inlet is disposed on the first cover plate, and the air outlet is disposed on the second cover plate; the first cover plate and the second cover plate are detachably installed at opposite ends of the casing body.

[0009] Optionally, the housing includes a surrounding panel and a partition frame. The surrounding panel encloses the accommodating space, and the partition frame connects to the inner wall of the accommodating space. The partition frame is used to divide the accommodating space into a first space and a second space. The air inlet and the air outlet are respectively connected to opposite ends of the first space, and the negative electrode frame is installed in the first space.

[0010] The first cover plate and the second cover plate are detachably installed at opposite ends of the enclosure;

[0011] The positive electrode assembly also includes a conductive component installed in the second space, and all the positive electrode posts are installed on the conductive component; the outer casing also includes a cover installed on the partition frame, the cover being used to cover the second space.

[0012] Optionally, the partition frame has spaced cylindrical bodies at one end away from the partition cover, and the cylindrical bodies have through holes that connect to the first space. The positive electrode post at one end away from the conductive component passes through the through holes and extends into the ventilation hole.

[0013] Optionally, an internal space is provided between the partition frame and the partition cover, and the purification structure further includes a high-voltage converter installed in the internal space. All the positive terminals are electrically connected to the positive output terminal of the high-voltage converter, and the negative terminal frame is electrically connected to the negative output terminal of the high-voltage converter.

[0014] Optionally, the outer wall of the outer casing is provided with a first groove and a second groove, and the purification structure further includes a positive conductive element and a negative conductive element; the positive conductive element is installed in the first groove and electrically connected to the positive input terminal of the high voltage converter; the negative conductive element is installed in the second groove and electrically connected to the negative input terminal of the high voltage converter.

[0015] Optionally, a handle is provided on the outer wall of the outer casing at the end away from the first groove and the second groove.

[0016] Optionally, the negative electrode frame includes a frame frame and a partition plate connecting the frame frame. The frame frame is provided with a plurality of ventilation holes spaced apart, and the tip discharge part passes through the partition plate along the axial direction of the ventilation holes.

[0017] Optionally, the inner wall of the outer casing is provided with a first plug-in portion, and the negative electrode frame is provided with a second plug-in portion. The negative electrode frame is installed in the receiving space through the first plug-in portion and the second plug-in portion that are plugged into each other.

[0018] Another embodiment of this utility model also provides an air purifier, including a fan, a controller, a purification box, and the above-mentioned purification structure;

[0019] The purification box includes a purification box body and a side cover. The purification box body is provided with an installation space, a drawer recess, and an air inlet and an air outlet that are both connected to the installation space. The purification structure is detachably installed in the drawer recess, and the side cover is detachably installed on the purification box body and is used to cover the drawer recess.

[0020] The drawer recess has a first hole group and a second hole group on its two opposite inner walls, and both the first hole group and the second hole group are connected to the installation space.

[0021] The controller and the fan are both installed in the installation space; the air purifier also includes a positive terminal and a negative terminal, both installed in the drawer recess, and the controller is electrically connected to the fan, the positive terminal, and the negative terminal;

[0022] When the purification structure is installed in the drawer recess, the positive electrode assembly is electrically connected to the positive terminal, and the negative electrode holder is electrically connected to the negative terminal.

[0023] In this invention, external air flows into the accommodating space through the air inlet. After the negative electrode frame and the positive electrode assembly are energized, a tip discharge phenomenon occurs between the positive electrode post and the tip discharge part. As the air passes through the ventilation hole, the high-voltage electric field ionizes the dust particles in the air, causing them to become charged with ions. The dust particles carrying the charged ions move towards the negative electrode frame under the action of the electric field formed between the positive electrode post and the negative electrode frame, forming a directional ion wind that purifies the air, thus achieving the effect of purifying the air. After the air is ionized through the ventilation hole, it is then output through the air outlet. In this invention, the positive electrode extends into the ventilation hole of the negative electrode frame. When energized, it achieves the technical effects of ionization and air purification. This purification structure has fewer components, is easy to assemble, and has low manufacturing costs. In addition, the positive electrode and the negative electrode frame have an ionization effect, so the purification structure can be washed with water. Even if a small amount of moisture remains on the positive electrode or the negative electrode frame after washing and drying, a short circuit will not occur between the positive electrode and the negative electrode frame, thus improving the safety of the purification structure and extending its service life. Attached Figure Description

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

[0025] Figure 1 This is a schematic diagram of the purification structure provided in one embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of a purification structure provided in an embodiment of the present invention;

[0027] Figure 3 This is an exploded structural diagram of a purification structure provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the positive electrode assembly and negative electrode frame of the purification structure provided in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the purification structure box provided in one embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of the structure of an air purifier provided in one embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the air purifier in the open state according to an embodiment of the present invention;

[0032] Figure 8 This is a cross-sectional view of an air purifier provided in an embodiment of this utility model.

[0033] The reference numerals in the accompanying drawings are as follows:

[0034] 1. Outer casing; 11. Reception space; 111. First space; 112. Second space; 12. Air inlet; 13. Air outlet; 14. Box body; 141. Enclosure panel; 142. Partition frame; 143. Cylinder body; 1431. Through hole; 15. First cover plate; 16. Second cover plate; 17. Partition cover; 18. Internal space; 19. Installation space; 101. Handle; 102. First connector; 2. Negative electrode frame; 21. Ventilation hole; 2 2. Point discharge section; 23. Second insertion section; 24. Frame frame; 25. Divider plate; 3. Positive electrode assembly; 31. Positive electrode post; 32. Conductive component; 4. High voltage converter; 5. Positive electrode conductive component; 6. Fan; 8. Purification box; 81. Purification box body; 811. Installation space; 812. Drawer recess; 813. Air inlet; 814. Air outlet; 815. First hole group; 816. Second hole group; 82. Side cover. Detailed Implementation

[0035] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] like Figures 1 to 4 As shown, an embodiment of the present invention provides a purification structure including an outer casing 1, a negative electrode frame 2, and a positive electrode assembly 3. The outer casing 1 is provided with a receiving space 11, an air inlet 12, and an air outlet 13. The air inlet 12 and the air outlet 13 are respectively connected to the opposite ends of the receiving space 11. The negative electrode frame 2 is installed in the receiving space 11. It can be understood that the outer casing 1 is an insulating component, and the negative electrode frame 2 and the positive electrode post 31 are both conductive components. The positive electrode post 31 includes, but is not limited to, a brush (a metal head and a carbon fiber bundle are fixed by solder, which has a strong structure, is corrosion-resistant, has a long life, and is easy to maintain). The air inlet 12 is connected to the lower end of the receiving space 11, and the air outlet 13 is connected to the upper end of the receiving space 11.

[0037] The negative electrode frame 2 is provided with a plurality of ventilation holes 21 spaced apart, and a plurality of tip discharge parts 22 arranged around the ventilation holes 21; preferably, the ventilation holes 21 are arranged in an array, and a plurality of tip discharge parts 22 are arranged around each ventilation hole 21.

[0038] The positive electrode assembly 3 includes a plurality of positive electrode posts 31, which extend into the ventilation holes 21 one by one.

[0039] In this invention, external air flows into the accommodating space 11 through the air inlet 12. After the negative electrode frame 2 and the positive electrode assembly 3 are energized, a tip discharge phenomenon occurs between the positive electrode post 31 and the tip discharge part 22. As the air passes through the ventilation hole 21, the high-voltage electric field ionizes the dust particles in the air, causing them to carry charged ions. The dust particles carrying charged ions move towards the negative electrode frame 2 under the action of the electric field formed between the positive electrode post 31 and the negative electrode frame 2, forming a directional ion wind to purify the air and achieve the effect of purifying the air. After the air is ionized through the ventilation hole 21, it is output through the air outlet 13. In this invention, the positive electrode post 31 extends into the ventilation hole 21 of the negative electrode frame 2. After being energized, it can achieve the technical effects of ionization and air purification. This purification structure has fewer components, is easy to assemble, and has low manufacturing costs. In addition, the positive electrode post 31 and the negative electrode frame 2 have an ionization effect, so the purification structure can be washed with water. Even if a small amount of moisture remains on the positive electrode post 31 or the negative electrode frame 2 after washing and drying, a short circuit will not occur between the positive electrode post 31 and the negative electrode frame 2, which improves the safety of the purification structure and extends its service life.

[0040] In one embodiment, such as Figures 1 to 3 As shown, the outer casing 1 includes a casing 14, a first cover plate 15, and a second cover plate 16; the accommodating space 11 is disposed on the casing 14, the air inlet 12 is disposed on the first cover plate 15, and the air outlet 13 is disposed on the second cover plate 16; the first cover plate 15 is detachably installed at the first end (lower end) of the casing 14, and the second cover plate 16 is detachably installed at the second end (upper end) of the casing 14. It can be understood that the first cover plate 15 can be detachably installed at the lower end of the casing 14 via a snap-fit ​​structure, a plug-in structure, etc.; the second cover plate 16 can be detachably installed at the upper end of the casing 14 via a snap-fit ​​structure, a plug-in structure, etc. Preferably, the first cover plate 15 has a plurality of spaced-apart air inlets 12, and the second cover plate 16 has a plurality of spaced-apart air outlets 13.

[0041] In this embodiment, the first cover plate 15 and the second cover plate 16 are respectively detachably installed at opposite ends of the housing 14, thereby facilitating the user to open the accommodating space 11, further improving the ease of disassembly and assembly of the purification structure, and also improving the ease of cleaning the negative electrode rack 2.

[0042] In one embodiment, such as Figure 2 , Figure 3 as well as Figure 5As shown, the housing 14 includes a surrounding panel 141 and a partition frame 142. The surrounding panel 141 surrounds the accommodating space 11, and the partition frame 142 connects to the inner wall of the accommodating space 11. The partition frame 142 is used to divide the accommodating space 11 into a first space 111 and a second space 112. The air inlet 12 and the air outlet 13 are respectively connected to the opposite ends of the first space 111. The first cover plate 15 and the second cover plate 16 are respectively detachably installed at the opposite ends of the surrounding panel 141. Preferably, the partition frame 142 and the surrounding panel 141 are integrally formed parts.

[0043] The positive electrode assembly 3 further includes a conductive component 32 installed in the second space 112, and all the positive electrode posts 31 are installed on the conductive component 32; the outer casing 1 further includes a cover 17 installed on the partition frame 142, the cover 17 being used to cover the second space 112. Understandably, the cover 17 can be installed on the partition frame 142 using screws, bolts, or other fasteners; the cover 17 serves to cover the second space 112; the conductive component 32 includes, but is not limited to, circuit boards, copper busbars, etc.

[0044] In this embodiment, the conductive component 32 is installed in the second space 112 between the partition frame 142 and the partition cover 17. The positive electrode post 31 extends through the second space 112 into the ventilation hole 21. External dust and other particles are not easily allowed to enter the second space 112, thus the conductive component 32 is not easily contaminated with dust, extending the service life of the purification structure.

[0045] In one embodiment, such as Figure 2 and Figure 5 As shown, the partition frame 142 has spaced cylindrical bodies 143 at one end opposite to the partition cover 17. Each cylindrical body 143 has a through hole 1431 communicating with the internal space 18. The end of the positive electrode post 31 away from the conductive component 32 passes through the through hole 1431 and extends into the ventilation hole 21. Preferably, the enclosure plate 141, the partition frame 142, and all the cylindrical bodies 143 are integrally formed.

[0046] In this embodiment, only a small portion of the positive electrode post 31 is located in the ventilation hole 21, while the majority of the positive electrode post 31 is located in the through hole 1431 of the cylinder 143, so that the cylinder 143 can play the role of maintaining the positive electrode post 31.

[0047] In one embodiment, such as Figure 2As shown, an installation space 19 is provided between the partition frame 142 and the partition cover 17. The purification structure also includes a high-voltage converter 4 installed in the installation space 19. All the positive terminals 31 are electrically connected to the positive output terminal of the high-voltage converter 4, and the negative terminal frame 2 is electrically connected to the negative output terminal of the high-voltage converter 4. Understandably, the high-voltage converter 4 can increase the voltage input to the positive terminal assembly 3, causing a discharge phenomenon between the positive terminal 31 and the negative terminal frame 2. In this embodiment, the high-voltage converter 4 is installed in the installation space 19 between the partition frame 142 and the partition cover 17, improving the integration of the purification structure.

[0048] In one embodiment, such as Figure 3 As shown, the outer wall of the outer casing 1 is provided with a first groove and a second groove. The purification structure also includes a positive conductive element 5 and a negative conductive element (not shown in the figure). The positive conductive element 5 is installed in the first groove and is electrically connected to the positive input terminal of the high-voltage converter 4; the negative conductive element is installed in the second groove and is electrically connected to the negative input terminal of the high-voltage converter 4. It can be understood that the positive conductive element 5 and the negative conductive element include, but are not limited to, conductive sheets.

[0049] Specifically, when the purification structure is installed on the purifier, the high-voltage converter 4 is electrically connected to the power supply unit on the purifier through the positive conductive element 5 and the negative conductive element, which improves the ease of use of the purification structure.

[0050] In one embodiment, such as Figure 1 As shown, a handle 101 is provided on the outer wall of the outer casing 1 at the end away from the first groove and the second groove. It can be understood that the handle 101 is located on the outer wall of the outer casing 1 facing outwards, while the positive conductive element 5 and the negative conductive element are both installed on the outer wall of the outer casing 1 facing inwards. In this embodiment, the purification structure is a drawer-type structure, further improving the ease of use of the purification structure.

[0051] In one embodiment, such as Figure 3 and Figure 5As shown, the inner wall of the outer casing 1 is provided with a first insertion part 102, and the negative electrode holder 2 is provided with a second insertion part 23. The negative electrode holder 2 is installed in the receiving space 11 through the mutual insertion of the first insertion part 102 and the second insertion part 23. It can be understood that one of the first insertion part 102 and the second insertion part 23 can be an insertion groove and the other can be an insertion protrusion. In this embodiment, the design of the first insertion part 102 and the second insertion part 23 allows the negative electrode holder 2 to be detachably installed in the receiving space 11, which facilitates the disassembly and assembly of the negative electrode holder 2 and the outer casing 1, and further improves the convenience of cleaning the negative electrode holder 2.

[0052] In one embodiment, such as Figure 4 As shown, the negative electrode frame 2 includes a frame frame 24 and a partition plate 25 connecting the frame frame 24. The frame frame 24 has a plurality of ventilation holes 21 spaced apart. The tip discharge portion 22 passes through the partition plate 25 along the axial direction of the ventilation hole 21. It can be understood that the partition plate 25 connects to the middle of the frame frame 24, and the tip discharge portion 22 is circumferentially arranged around the ventilation hole 21. Preferably, 4-20 tip discharge portions 22 are arranged around each ventilation hole 21. The height of the frame frame 24 is 5mm-30mm. The distance between the positive electrode post 31 and the tip discharge portion 22 is 5mm-20mm.

[0053] In this embodiment, the negative electrode holder 2 is convenient for storing dust. The dust will accumulate between two adjacent tip discharge sections 22, and the dust is not easy to flow with the air, which improves the purification effect of the purification structure on the air.

[0054] like Figures 6 to 8 As shown, another embodiment of the present invention also provides an air purifier, including a fan 6, a controller (not shown in the figure), a purification box 8, and the above-mentioned purification structure;

[0055] The purification box 8 includes a purification box body 81 and a side cover 82. The purification box body 81 is provided with an installation space 811, a drawer recess 812, and an air inlet 813 and an air outlet 814, both of which are connected to the installation space 811. The purification structure is detachably installed in the drawer recess 812, and the side cover 82 is detachably installed on the purification box body 81 and is used to cover the drawer recess 812. It can be understood that the air inlet 813, the drawer recess 812, and the air outlet 814 are all located on the side of the purification box body 81, and the air inlet 813 is located below the drawer recess 812.

[0056] The drawer recess 812 has a first hole group 815 and a second hole group 816 respectively on its two opposite inner walls. Both the first hole group 815 and the second hole group 816 are connected to the installation space 811. It can be understood that the first hole group 815 is provided on the bottom inner wall of the drawer recess 812, and the second hole group 816 is provided on the top inner wall of the drawer recess 812. The drawer recess 812 is connected to the installation space 811 through the first hole group 815 and the second hole group 816.

[0057] The controller and the fan 6 are both installed in the installation space 811; the air purifier also includes a positive terminal and a negative terminal, both installed in the drawer recess 812, and the controller is electrically connected to the fan 6, the positive terminal and the negative terminal; it can be understood that the positive terminal and the negative terminal include, but are not limited to, guide pins, etc.

[0058] When the purification structure is installed in the drawer recess 812, the positive electrode assembly 3 is electrically connected to the positive terminal, and the negative electrode holder is electrically connected to the negative terminal. Understandably, the positive terminal contacts the positive conductive element 5, thereby connecting the positive terminal to the positive electrode assembly 3 via the positive conductive element 5, the high-voltage converter 4, and the controller; the negative terminal contacts the negative conductive element, thereby connecting the negative terminal to the negative electrode holder via the negative conductive element, the high-voltage converter 4, and the controller.

[0059] Specifically, external air enters the drawer recess 812 through the air inlet 813 and the first hole group 815, then enters the receiving space 11 through the air inlet 12. After the purification structure purifies the air, it flows back into the installation space 811 through the second hole group 816 and the air outlet 13, and finally flows into the external environment through the air outlet 814. The fan 6 rotates in the installation space 811 to provide the necessary power for the flow of air in the air purifier.

[0060] In this utility model, the purification structure is detachably installed in the drawer groove 812 of the purification box 8 via a drawer-type structure, and the side cover 82 is detachably installed on the purification box 8 and is used to cover the drawer groove 812, thereby facilitating the disassembly and assembly of the purification structure and the purification box 8, and improving the cleaning, replacement and other work of the purification structure.

[0061] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A purification structure, characterized in that, It includes an outer casing, a negative electrode frame, and a positive electrode assembly; the outer casing is provided with a receiving space, an air inlet, and an air outlet, the air inlet and the air outlet being respectively connected to opposite ends of the receiving space; the negative electrode frame and the positive electrode assembly are both installed in the receiving space; The negative electrode frame is provided with a plurality of ventilation holes spaced apart, and a plurality of tip discharge sections arranged around the ventilation holes; The positive electrode assembly includes multiple positive electrode posts, each of which extends into the ventilation hole.

2. The purification structure according to claim 1, characterized in that, The outer casing includes a casing body, a first cover plate, and a second cover plate; the accommodating space is disposed on the casing body, the air inlet is disposed on the first cover plate, and the air outlet is disposed on the second cover plate; the first cover plate and the second cover plate are detachably installed at opposite ends of the casing body.

3. The purification structure according to claim 2, characterized in that, The enclosure includes a surrounding panel and a partition frame. The surrounding panel encloses the receiving space, and the partition frame connects to the inner wall of the receiving space. The partition frame is used to divide the receiving space into a first space and a second space. The air inlet and the air outlet are respectively connected to the opposite ends of the first space, and the negative electrode rack is installed in the first space. The first cover plate and the second cover plate are detachably installed at opposite ends of the enclosure; The positive electrode assembly also includes a conductive component installed in the second space, and all the positive electrode posts are installed on the conductive component; the outer casing also includes a cover installed on the partition frame, the cover being used to cover the second space.

4. The purification structure according to claim 3, characterized in that, The partition frame has spaced cylindrical bodies at one end away from the partition cover. The cylindrical bodies have through holes that connect to the first space. The positive electrode post, away from the conductive component, passes through the through hole and extends into the ventilation hole.

5. The purification structure according to claim 3, characterized in that, An internal space is provided between the partition frame and the partition cover. The purification structure also includes a high-voltage converter installed in the internal space. All the positive terminals are electrically connected to the positive output terminal of the high-voltage converter, and the negative terminal frame is electrically connected to the negative output terminal of the high-voltage converter.

6. The purification structure according to claim 5, characterized in that, The outer wall of the outer casing is provided with a first groove and a second groove. The purification structure also includes a positive conductive element and a negative conductive element. The positive conductive element is installed in the first groove and is electrically connected to the positive input terminal of the high voltage converter. The negative conductive element is installed in the second groove and is electrically connected to the negative input terminal of the high voltage converter.

7. The purification structure according to claim 6, characterized in that, A handle is provided on the outer wall of the outer casing at the end away from the first groove and the second groove.

8. The purification structure according to claim 1, characterized in that, The negative electrode frame includes a frame frame and a partition plate connecting the frame frame. The frame frame is provided with a plurality of ventilation holes spaced apart. The tip discharge part passes through the partition plate along the axial direction of the ventilation holes.

9. The purification structure according to claim 1, characterized in that, The inner wall of the outer casing is provided with a first plug-in part, and the negative electrode frame is provided with a second plug-in part. The negative electrode frame is installed in the accommodating space through the first plug-in part and the second plug-in part that are plugged into each other.

10. An air purifier, characterized in that, Includes a fan, a controller, a purification box, and a purification structure as described in any one of claims 1 to 9; The purification box includes a purification box body and a side cover. The purification box body is provided with an installation space, a drawer recess, and an air inlet and an air outlet that are both connected to the installation space. The purification structure is detachably installed in the drawer recess, and the side cover is detachably installed on the purification box body and is used to cover the drawer recess. The drawer recess has a first hole group and a second hole group on its two opposite inner walls, and both the first hole group and the second hole group are connected to the installation space. The controller and the fan are both installed in the installation space; the air purifier also includes a positive terminal and a negative terminal, both installed in the drawer recess, and the controller is electrically connected to the fan, the positive terminal, and the negative terminal; When the purification structure is installed in the drawer recess, the positive electrode assembly is electrically connected to the positive terminal, and the negative electrode holder is electrically connected to the negative terminal.

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