Composite filter and air purifier including the same

Abstract

The present invention provides a composite filter. The composite filter includes a filter unit for filtering air and including a filter member having a plurality of filter portions rotatably connected with respect to each other, at least one filter module disposed side by side with at least one of the plurality of filter portions, and a bracket configured to make the filter portions disposed adjacent to each other rotatable with respect to each other and to support the filter portions disposed adjacent to each other and the filter module at the same time, wherein the bracket includes folding portions selectively folded according to rotation of the filter portions disposed adjacent to each other with respect to each other, and a plurality of attachment portions located between the folding portions and connected to the folding portions, respectively, and attached to sides of filter portions disposed side by side among the filter portions disposed adjacent to each other, respectively, the folding portions and the attachment portions are provided in one body and formed of a flexible soft material, and the attachment portions can be extended to sides of the adjacent filter module to seal a gap between the filter portions disposed side by side and the filter module.

Description

Technical Field

[0001] This invention relates to a composite filter and an air purifier including the same. Background Technology

[0002] Generally speaking, an air purifier is a device that draws in polluted indoor air and purifies it by filtering out dust, odor particles, and other contaminants. Air purifiers clean indoor air by drawing in and purifying the surrounding polluted air, and then expelling the purified air outside the purifier.

[0003] On the one hand, air purifiers may include filters that remove dust and odor particles from the air flowing into the purifier. Depending on the type of air purifier, the filter can have various shapes. For example, the filter can be cylindrical, cuboid, etc.

[0004] However, filters with the aforementioned shape occupy a relatively large volume during transportation, thus incurring significant costs. Furthermore, in recent years, the demand for large-area filters for purifying air in large spaces has been increasing, leading to a gradual increase in the volume of filters during transport. Therefore, filters designed to reduce their transport volume are being developed.

[0005] The applicant's U.S. Patent Publication 2018 / 0221805, "Air Purifier," and Blueair AB's U.S. Patent Publication 2018 / 0304184, "Foldable Air Filter Unit," disclose a foldable filter that can reduce its size during transport. However, conventional foldable filters require complex hinge structures for folding, and utilize complex structures or additional adhesives to combine the filter and support (frame), thus complicating the structure and manufacturing process of foldable filters and increasing manufacturing costs.

[0006] Furthermore, in the case of composite filters that combine a dust collection filter for filtering dust and a functional filter such as a deodorizing filter, a sealed configuration is required to prevent air leakage from the gap between the two filters that are stacked. If a structurally difficult-to-seal hinge structure is applied in the composite filter, additional seals must be added, which complicates the manufacturing process and increases the overall manufacturing cost, which is undesirable.

[0007] Therefore, there is a need for a composite filter that simplifies the manufacturing process and reduces manufacturing costs through a simple structure.

[0008] Existing technical documents

[0009] (Patent Document 1) US Patent Publication 2018 / 0221805 (Application published on August 9, 2018)

[0010] (Patent Document 2) US Patent Publication 2018 / 0304184 (Application published on October 25, 2018) Summary of the Invention

[0011] (The problem to be solved)

[0012] Embodiments of the present invention were invented in view of the above background. The object of the present invention is to provide a pleated composite filter that can reduce volume during transportation while ensuring a large filtration area to filter a large amount of air.

[0013] In addition, the present invention aims to provide a composite filter that has a simplified structure and improved durability, allowing for long-term use.

[0014] Furthermore, the present invention aims to provide a composite filter that simplifies the structure of the filter, and in particular reduces the time and cost required to manufacture a pleated composite filter.

[0015] (Solution to the problem)

[0016] According to one aspect of the invention, a composite filter can be provided, the composite filter comprising: a filter unit for filtering air and including a filter member having a plurality of filter sections, the sides of the plurality of filter sections being rotatably connected relative to each other; at least one filter module disposed side-by-side with at least one of the plurality of filter sections; and a support that simultaneously supports the adjacent filter sections and the filter module, such that the adjacent filter sections are rotatable relative to each other, wherein the support comprises: a folding portion selectively folding according to the relative rotation of the adjacent filter sections; and a plurality of attachment portions located between and respectively connected to the folding portions and respectively attached to the sides of the adjacent filter sections, the folding portions and the attachment portions being integrally formed of a flexible material, the attachment portions extending to the sides of adjacent filter modules to seal the gap between the filter sections and the filter modules.

[0017] Furthermore, a composite filter can be provided, wherein the plurality of filter elements are three or more filter elements, and the plurality of filter elements are arranged along a circular path when each of the plurality of filter elements is rotated relative to each other to form an angle smaller than a flat angle relative to the adjacent filter element.

[0018] Furthermore, a composite filter can be provided, wherein the plurality of filter elements is an even number.

[0019] Meanwhile, a composite filter can be provided in which the plurality of filter elements are rotatable relative to each other so that at least two filter elements adjacent to each other are arranged in parallel.

[0020] Alternatively, a composite filter can be provided, wherein the filter module includes: an air purification component for filtering air; and a module frame for supporting the upper or lower part of the air purification component, and a protrusion is formed on at least one of the two sides of the air purification component.

[0021] Furthermore, a composite filter can be provided in which the support has a recess corresponding to at least a portion of the protrusion, and has an adhesive surface for bonding to the side of the air purification component.

[0022] Meanwhile, a composite filter can be provided, wherein the filter unit further includes a filter frame, the filter frame having a support portion supporting an upper or lower portion of the filter unit, and the composite filter further includes a connecting member, the connecting member being attached to the upper or lower portion of the support portion and the module frame disposed adjacent to each other to seal the gap between the support portion and the module frame.

[0023] Alternatively, a composite filter may be provided, wherein the filter module includes a corrugated filter.

[0024] Meanwhile, a composite filter can be provided, including a blower that provides airflow to allow outside air to pass through the composite filter.

[0025] Alternatively, a method for manufacturing a composite filter can be provided, the method comprising: a step of providing a stacked preform, providing a stacked preform comprising a filter unit preform and a filter module preform; a filter module cutting step, wherein a cutter of the filter manufacturing apparatus moves along an imaginary cutting line extending in the thickness direction of the stacked preform to divide the filter module preform into a plurality of filter modules; a filter unit cutting step, wherein after the filter module cutting step, the cutter moves along the cutting line between the plurality of filter modules and cuts the filter unit preform to a depth smaller than the thickness of the filter unit preform; and a support attaching step, attaching the support to the sides of the filter portions and the filter modules disposed adjacent to each other, wherein the filter unit comprising the plurality of filter portions and the plurality of supports is formed from the filter unit preform by the filter unit cutting step.

[0026] (The effect of the invention)

[0027] According to embodiments of the present invention, for example, a pleated composite filter that combines a dust collection filter and a deodorizing filter can reduce the volume of the filter, thereby reducing the filter transportation cost.

[0028] Furthermore, it has the effect of reducing manufacturing costs by simplifying the structure of the pleated composite filter. Attached Figure Description

[0029] Figure 1 This is a perspective view showing an air purifier according to a first embodiment of the present invention.

[0030] Figure 2 It is along Figure 1 Sectional view of section II-II.

[0031] Figure 3 yes Figure 2 A three-dimensional view of a portion of the composite filter shown.

[0032] Figure 4 yes Figure 3 Rear-view stereoscopic view.

[0033] Figure 5 yes Figure 3 An exploded 3D diagram.

[0034] Figure 6 Is Figure 2 The three-dimensional view of the composite filter with connecting components is omitted.

[0035] Figure 7 yes Figure 2 A three-dimensional view of the composite filter.

[0036] Figure 8 yes Figure 7 An exploded 3D diagram.

[0037] Figure 9 yes Figure 7 A 3D view of the composite filter in a folded state.

[0038] Figure 10 This is a perspective view showing a composite filter according to a second embodiment of the present invention.

[0039] Figure 11 This is a schematic diagram illustrating the manufacturing process of the composite filter according to the present invention.

[0040] Figure 12 This is a flowchart schematically illustrating a method for manufacturing a composite filter according to the present invention. Detailed Implementation

[0041] The specific embodiments for implementing the technical concept of the present invention will now be described in detail with reference to the accompanying drawings.

[0042] Furthermore, in the description of this invention, detailed descriptions of well-known configurations or functions will be omitted if it is believed that such detailed descriptions may obscure the main points of the invention.

[0043] In the following description, embodiments of the invention will be illustrated with reference to the accompanying drawings.

[0044] Furthermore, it should be understood that when a component is referred to as “connecting,” “supporting,” or “flowing into” another component, it may be directly connected to, supporting, or flowing into another component, but other components may also be present in it.

[0045] The terminology used in this specification is for describing specific embodiments only and is not intended to limit the invention. Unless the context clearly specifies otherwise, singular expressions include plural expressions.

[0046] Furthermore, various components may be described using terms including, for example, ordinal numbers such as first and second, but these components are not limited by these terms. These terms are only used to distinguish one component from another.

[0047] As used herein, “comprising” means specifically describing features, regions, integers, steps, operations, components, and / or ingredients, and does not exclude the possibility of the presence or addition of other specific features, regions, integers, steps, operations, components, ingredients, and / or groups.

[0048] Additionally, it should be noted that in this specification, the expression of directions such as the longitudinal direction is described based on the accompanying drawings. If the orientation of the object changes, it can be expressed differently. Furthermore, in this specification, the longitudinal direction can be based on... Figures 3 to 10 The longitudinal direction.

[0049] Hereinafter, the specific structure of the air purifier 1 according to the first embodiment of the present invention will be described with reference to the accompanying drawings.

[0050] In the following text, refer to Figure 1 and Figure 2 According to the first embodiment of the present invention, the air purifier 1 purifies polluted air into clean air by filtering dust, odor particles, etc., that flow into the air purifier 1. Furthermore, the air purifier 1 can draw in air from outside the air purifier and exhaust the purified air inside to the outside. The air purifier 1 may include a main body 10, a blower 20, and a composite filter 30.

[0051] The main body 10 can support the blower 20 and the composite filter 30, and can provide space to accommodate the blower 20 and the composite filter 30. The main body 10 may include a housing surrounding the blower 20 and the composite filter 30.

[0052] The blower 20 can be driven to draw air from outside the air purifier 1 into its interior. The blower 20 can provide airflow to pass the incoming air through the composite filter 30. Furthermore, the blower 20 can be driven to deliver air purified by the filter 30 located inside the air purifier 1 to the outside. For example, the blower 20 can be located at the lower part of the main body 10 or inside the composite filter 30.

[0053] Reference Figures 3 to 5 The composite filter 30 can filter air flowing in from outside the air purifier 1 into clean air. For example, it can filter dust and odor particles from the air. Furthermore, the composite filter 30 can be configured to be selectively folded. For example, the composite filter 30 can be folded during delivery to minimize its size, and can be unfolded after delivery to perform its functions. The composite filter 30 may include a filter unit 100, a filter module 200, a support 300, and a connecting member 400.

[0054] The filter unit 100 is configured to allow air to pass through, and the air passing through the filter unit 100 can be filtered into clean air. The filter unit 100 can be formed to extend in the longitudinal direction. Furthermore, one side of the filter unit 100 through which air passes and one side of the filter module 200 can be arranged side by side. For example, the filter unit 100 can perform secondary filtration on the air that has been initially filtered by the filter module 200, but depending on the flow direction, the air can also be initially filtered before passing through the filter module 200. Such a filter unit 100 may include a filter member 110 and a filter frame 120.

[0055] The filter member 110 is configured to capture dust in the air and filter the air passing through it into clean air. Furthermore, the filter member 110 may be supported by a filter frame 120. Additionally, the filter member 110 may include a filter section 111.

[0056] A filter section 111 can be provided for filtering air. Multiple pleats extending in the longitudinal direction can be formed in the filter section 111. For example, the multiple pleats of the filter section 111 can be folded and contracted in a direction perpendicular to the longitudinal direction, or they can be unfolded and expanded in a direction perpendicular to the longitudinal direction. A portion of the edge of the filter section 111 can be surrounded by and supported by a support section 121, which will be described later. For example, the upper and lower portions of the filter section 111 can be supported by the support section 121. Furthermore, a bracket 300 can be attached to the side of the filter section 111.

[0057] Meanwhile, multiple filter units 111 can be configured, and at least some of the multiple filter units 111 can be arranged adjacent to each other. Multiple filter units 111 can be configured as two or more, and as a more detailed example, the number of filter units 111 can be even. The following description uses the case of four filter units 111 as an example, but this is only an example, and the number can be any.

[0058] Reference Figures 6 to 8 Multiple filter sections 111 can be formed as a single unit, with their sides connected to allow them to rotate relative to each other. In other words, any one of the multiple filter sections 111 can rotate relative to another adjacent filter section 111. For example, each of the multiple filter sections 111 can be configured to rotate about an imaginary axis extending in the longitudinal direction, thereby folding with the adjacent filter section 111.

[0059] When multiple filter sections 111 are rotated relative to each other to form an angle smaller than a flat angle, i.e., less than 180 degrees, with respect to each adjacent filter section 111, the multiple filter sections 111 can be arranged along a circular path. The circular path can be defined as a predetermined path starting from one point, passing through another point, and then returning to a point. For example, the multiple filter sections 111 can be configured to be three. For a more detailed example, see [reference needed]. Figure 6 Multiple filter sections 111 can rotate relative to each other to form a predetermined angle (90° when there are four) relative to each adjacent filter section 111. Here, the predetermined angle can be the largest angle formed by the area of ​​the internal space surrounded by the multiple filter sections 111 when viewed from above. At this time, as... Figure 2 As shown, when viewed from above, the multiple filter sections 111 can form a rectangular ring. Thus, when each of the multiple filter sections 111 forms an angle greater than 0° and less than 180° relative to the adjacent filter section 111, it is defined as the unfolded state.

[0060] Reference Figure 8The plurality of filter sections 111 are rotatable relative to each other, such that at least two adjacent filter sections 111 are arranged in parallel. As a more detailed example, any one of the plurality of filter sections 111 can be folded relative to another filter section 111 by rotating relative to it. In this case, the angle between any one filter section 111 and the other filter section 111 connected to it is 0°. Alternatively, any one filter section 111 can be unfolded relative to another filter section 111 by rotating relative to it on the other side. A folded state is defined when each of the plurality of filter sections 111 forms an angle of 0° or 180° with an adjacent filter section 111. In this case, the angle between any one filter section 111 and the other filter section 111 connected to it on the other side is 180°.

[0061] Thus, when the multiple filter sections 111 are in a folded state, adjacent filter sections 111 can be in close contact due to their parallel arrangement. Furthermore, since the space between the multiple filter sections 111 is minimized, the volume of the filter component 110 is minimized.

[0062] The filter frame 120 can support the filter member 110. For example, the filter frame 120 is configured to surround the upper or lower part of the filter member 110 and can support the filter member 110 at the upper or lower part of the filter member 110. The filter frame 120 may include a plurality of support portions 121.

[0063] The support portion 121 can support the filter portion 111. For example, the support portion 121 can support the filter portion 111 at its upper or lower part. Furthermore, multiple supports 121 can be provided, and these multiple supports 121 can be formed integrally. The multiple supports 121 can be connected to the sides to be rotatable relative to each other. In other words, any one of the multiple supports 121 can rotate relative to another adjacent support portion 121.

[0064] The filter module 200 can be configured to filter air flowing into the interior of the main body 10 from the outside. The filter module 200 can consist of an additional dust collection filter to maximize dust collection functionality, but it can also consist of filters with functions other than dust collection. For example, it can be an odor-removing filter, a smoke filter to remove smoke particles, and a new house filter to remove substances that cause new house syndrome. As a more detailed example, the odor-removing filter can include a corrugated or activated carbon type odor-removing filter. The filter module 200 can be arranged side-by-side with one or more of the plurality of filter sections 111 of the filter unit 100, and can be located outside the filter unit 100. In other words, the filter module 200 can be configured to surround at least a portion of the filter unit 100. The filter module 200 can perform preliminary filtration of air flowing in from the outside before filtration by the filter unit 100, but when applied to an air purifier with a different airflow direction, it can filter the air after filtration by the filter unit 100.

[0065] Furthermore, multiple filter modules 200 can be configured, and each filter module 200 can be arranged side-by-side and connected to multiple filter sections 111. To connect the filter module 200 and the filter section 111, a bracket 300 and a connecting member 400 can be attached to them. For example, the upper and lower surfaces of the filter module 200 can be connected to the filter section 111 via the connecting member 400. Additionally, the side of the filter module 200 can be connected to the filter section 111 via the bracket 300.

[0066] In this specification and some of the accompanying drawings, the filter module 200 is shown as a plurality corresponding to the number of filter sections 111, but this is only an example. The filter module 200 may be one or more different from the number of filter sections 111. Therefore, the filter module 200 may be set to a number less than the number of filter sections 111, and may surround a plurality of filter sections 111. As a more detailed example, such as Figures 3 to 5 As shown, setting up a filter module 200 is also possible.

[0067] Meanwhile, the filter module 200 may include an air purification component 210 and a module frame 220.

[0068] The air purification component 210 can be configured to filter air. A portion of the air purification component 210 can be supported by the module frame 220. For example, the upper or lower part of the air purification component 210 can be surrounded and supported by the module frame 220. In addition, the bracket 300 can be attached to the side of the air purification component 210.

[0069] Simultaneously, a protrusion 211 may be formed on at least one of the two sides of the air purification component 210. For example, the air purification component 210 may include a plurality of components extending in a longitudinal direction and repeating a curved shape, and the protrusion 211 may be an outwardly protruding portion of the components of the air purification component 210. A bracket 300 may be attached to the protrusion 211. Furthermore, the protrusion 211 may be formed corresponding to a recess 321 of the bracket 300, which will be described later.

[0070] The module frame 220 can support the air purification component 210. The module frame 220 can support the air purification component 210 at the top or bottom.

[0071] The bracket 300 can simultaneously support filter units 100 and filter modules 200 arranged adjacent to each other. For example, the bracket 300 can support filter sections 111 arranged adjacent to each other among a plurality of filter sections 111 and allow them to rotate relative to each other. Furthermore, the bracket 300 can support support sections 121 arranged adjacent to each other among a plurality of support sections 121 and allow them to rotate relative to each other. The bracket 300 can connect the filter units 100 and the filter modules 200. For example, one side of the bracket 300 can be attached to the side of a filter section 111 or a support unit 121, and the other side of the bracket 300 can be attached to the side of the filter module 200. Furthermore, the bracket 300 can seal the gap between the filter units 100 and the filter modules 200. Additionally, an adhesive or adhesive tape providing adhesion can be provided on one surface of the bracket 300 to attach the side of the filter unit 100 and the side of the filter module 200. The bracket 300 can be formed to extend longitudinally according to the filter section 111, and multiple brackets can be provided.

[0072] Simultaneously, the bracket 300 can be configured to fold or unfold in response to rotation of the filter section 111 or the support section 121. For example, when the filter section 111 is in the unfolded state (i.e., when the composite filter 30 is mounted on the air purifier 1 and is in the first state), the bracket 300 can be in the unfolded state to form a predetermined angle greater than 0° and less than 180°. Furthermore, when the filter section 111 is in the folded state (i.e., when the composite filter 30 is in the second state separated from the air purifier 1 for storage or transportation), the bracket 300 disposed between any part of the plurality of filter sections 111 can be fully unfolded to form an angle of 180°, and the bracket 300 disposed between other parts of the plurality of filter sections 111 can be folded to form an angle of 0°. As an example, the bracket 300 can be one or more flexible materials including porous materials such as foam, nonwoven fabric, synthetic fibers, and natural fibers.

[0073] The bracket 300 may include a folding portion 310 and an attachment portion 320. The folding portion 310 and the attachment portion 320 may be formed as one piece.

[0074] The folding portion 310 can be selectively folded as adjacent filter portions 111 rotate relative to each other. The folding portion 310 can be configured as a portion of the support that folds in response to rotation of the filter portion 111. For example, when the filter portion 111 rotates relative to an adjacent filter portion 111, the imaginary axis around which the filter portion 111 rotates can correspond to the folding portion 310. Furthermore, the folding portion 310 can be disposed between filter portion 111 and another filter portion 111. The folding portion 310 is disposed at the very center of the support 300 and can extend in the longitudinal direction.

[0075] Return to reference Figure 7 The attachment portion 320 can be attached to the filter portion 111 to connect multiple filter portions 111. Multiple attachment portions 320 can be provided, and multiple attachment portions 320 can be located between fold portions 310 and respectively connected to fold portions 310. Furthermore, multiple attachment portions 320 can be respectively attached to adjacent filter portions 111 among multiple filter portions 111. Simultaneously, the attachment portion 320 can be attached between the filter member 110 and the filter module 200 and can seal the gap between the filter member 110 and the filter module 200. More specifically, the attachment portion 320 can be attached through the side of the filter portion 111 of the filter member 110 and the side of the air purification member 210 of the filter module 200. The attachment portion 320 can be attached to the support portion 121 to connect multiple filter frames 120. For example, the attachment portion 320 can extend from one edge of the filter portion 111 to the other edge of the air purification member 210 to cover the side of the filter portion 111 and the air purification member 210.

[0076] Meanwhile, an adhesive surface for bonding to the side of the air purification component 210 may be provided on one surface of the attachment portion 320. The adhesive surface can be bonded to the side of the air purification component 210. In addition, a recess 321 corresponding to at least a portion of the protrusion 211 may be formed on the attachment portion 320. For example, when the attachment portion 320 is attached to the side of the air purification component 210, the recess 321 can be attached to the protrusion 211.

[0077] The connecting member 400 can be attached to the filter unit 100 and the filter module 200 to connect them. For example, a portion of the connecting member 400 can be attached to the upper and lower surfaces of the filter unit 100, and another portion of the connecting member 400 can be attached to the upper and lower surfaces of the filter module 200. Furthermore, an adhesive or adhesive tape providing bonding force can be provided on one surface of the connecting member 400 to attach to the upper and lower surfaces of both the filter unit 100 and the filter module 200. Additionally, the connecting member 400 can seal the gap between the filter unit 100 and the filter module 200. In other words, the connecting member 400 can be attached to the support portion 121 and the module frame 220 to seal the gap between the support portion 121 of the filter unit 100 and the module frame 220 of the filter module 200. As an example, the connecting member 400 can be one or more flexible materials including porous materials such as foam, nonwoven fabrics, synthetic fibers, and natural fibers. However, as... Figure 6 As shown, connecting component 400 can be omitted.

[0078] The effects of the composite filter 30 with the configuration described above will now be explained.

[0079] The composite filter 30 has the effects described below, and most importantly, it is significant in providing these effects economically with a simple configuration.

[0080] Since the composite filter 30 is configured such that the plurality of filter units 100 are rotatable relative to each other, the composite filter 30 can be easily switched between an unfolded state and a folded state.

[0081] Furthermore, when the composite filter 30 is in the folded state, adjacent filter sections 111 are arranged in contact with each other, thereby minimizing the space between the multiple filter components 110. When the composite filter 30 is in the folded state, its volume can be minimized, thus reducing transportation costs. Moreover, the composite filter 30 can perform its filtration function by being converted to an unfolded state after transportation.

[0082] On the other hand, the bracket 300 can connect filter unit 111 and another filter unit 111, and has the effect of improving durability by reinforcing the connection. Furthermore, the bracket 300 and the connecting member 400 seal the gap between filter unit 100 and filter module 200, thereby preventing air from flowing between filter unit 100 and filter module 200. Therefore, by preventing unfiltered air in filter module 200 from flowing directly to filter unit 100, the purification efficiency is improved.

[0083] On the other hand, in addition to this configuration, according to a second embodiment of the invention, the filter components 110 can be configured as six. Further reference is made below. Figure 10 The second embodiment of the present invention will now be described. In describing the second embodiment, the differences from the embodiments described above will be primarily described, and the same descriptions and reference numerals will be used in the embodiments described above.

[0084] In a second embodiment of the invention, six filter members 110 may be provided. When the plurality of filter members 110 are in the deployed state, they are rotatable relative to each other to form an angle of 120° relative to adjacent filter members 110. Furthermore, when viewed from above, the plurality of filter members 110 may form a hexagonal ring. Each of the plurality of supports 300 may rotate in response to the rotation of the plurality of filter members 110.

[0085] The filter component 110 can filter air flowing in from more different directions, thus improving filtration efficiency.

[0086] In the following text, refer to Figure 11 and 12 The following describes a method (S10) for manufacturing a composite filter consisting of four surfaces according to a first embodiment of the present invention.

[0087] The composite filter manufacturing method (S10) can manufacture the composite filter 30 by processing a stacked preform of a filter unit preform 100 and a filter module preform 200. For example, the composite filter 30 can be manufactured using a filter manufacturing apparatus 40 including a cutter 41 and a conveyor belt 42. The composite filter manufacturing method (S10) may include a step of providing a stacked preform (S100), a filter module cutting step (S200), a filter unit cutting step (S300), and a support attachment step (S400).

[0088] In the step of providing the stacked prefabricated body (S100), the stacked prefabricated body can be provided by stacking the provided filter module prefabricated body 200 on top of the provided filter unit prefabricated body. Here, the filter unit prefabricated body 100 refers to the filter unit 100 before cutting, and the filter module prefabricated body 200 refers to the filter module 200 before cutting. The stacked prefabricated body can be conveyed to the conveyor belt 42 and can be conveyed in one direction via the conveyor belt.

[0089] In the filter module cutting step (S200), the filter module preform 200 located at the upper end of the stacked preform, which moves on the conveyor belt 42, can be cut. For example, in the filter module cutting step (S200), multiple cutters 41 can cut the filter module preform 200 along an imaginary cutting line extending in the thickness direction of the filter module preform 200. At this time, the filter module preform 200 can be divided into multiple filter modules 200.

[0090] In the filter unit cutting step (S300), a portion of the filter unit preform 100 located at the lower end of the stacked preform, which moves on the conveyor belt 42, can be cut. For example, in the filter unit cutting step (S300), after cutting the filter module preform 200, multiple cutters 41 move continuously along the cutting line between multiple filter modules 200 and cut the filter unit preform to a depth smaller than the thickness of the filter unit preform 100. The cutting depth of the filter unit preform 100 can be appropriately adjusted according to the folds formed on the filter unit preform 100, so that the filter unit preform 100 is not completely divided to form multiple filter components 110 connected to each other. In the case of manufacturing a composite filter according to the first embodiment of the present invention consisting of four surfaces, such as Figure 11 As shown, when cutting points corresponding to multiples of 4, the cutting depth is adjusted so that the filter unit preform 100 is completely divided.

[0091] In the bracket attachment step (S400), the filter unit 100 and filter module 200 manufactured in the filter module cutting step (S200) and filter unit cutting step (S300) can be connected by the bracket 300. In other words, in the bracket attachment step (S400), attaching the bracket 300 to the sides of the filter unit 100 and filter module 200, which are arranged adjacent to each other, allows the filter unit 100 and filter module 200 to be connected. The bracket attachment step (S400) can be performed after the filter module cutting step (S200) and filter unit cutting step (S300).

[0092] Although embodiments of the invention have been described as specific examples, these are merely illustrative and the invention is not limited thereto, and should be construed as having the widest scope of the technical concept disclosed herein. Those skilled in the art can implement patterns of shapes not shown by combining / substituting the disclosed embodiments, but this does not depart from the scope of the invention. Furthermore, those skilled in the art can readily change or modify the disclosed embodiments based on this specification, and it is obvious that such changes or modifications also fall within the scope of the invention.

Claims

1. A composite filter, wherein, The composite filter includes: A filter unit for filtering air, and includes a filter member having a plurality of filter sections whose sides are rotatably connected relative to each other; At least one filter module is arranged side-by-side with at least one of the plurality of filter sections; and The support bracket supports both adjacent filter sections and the filter module, allowing the adjacent filter sections to rotate relative to each other. The support includes: The folding section selectively folds according to the relative rotation of the adjacent filter sections; and Multiple attachment portions are located between the folded portions and respectively connected to the folded portions, and are respectively attached to the side surfaces of the adjacent filter portions. The folded portion and the attachment portion are integrated and formed of a flexible material. The attachment extends to the side of the adjacent filter module to seal the gap between the filter section and the filter module. The filtering module includes: Air purification components, used to filter air; and A modular frame supports the upper or lower part of the air purification component. The filter unit further includes a filter frame, which has a support portion for supporting the upper or lower part of the filter section, and The composite filter further includes a plurality of connecting members attached to the upper and lower portions of the support portion and the module frame disposed adjacent to each other to seal the gap between the support portion and the module frame, wherein the plurality of connecting members attached to the upper portion of the support portion and the module frame are rotatable relative to each other, and the plurality of connecting members attached to the lower portion of the support portion and the module frame are rotatable relative to each other.

2. The composite filter according to claim 1, wherein, The plurality of filter sections are three or more filter sections, and the plurality of filter sections are arranged along a circular path when each of the plurality of filter sections is rotated relative to each other to form an angle smaller than a flat angle relative to the adjacent filter section.

3. The composite filter according to claim 2, wherein, The number of filter sections is even.

4. The composite filter according to claim 1, wherein, The plurality of filter sections are rotatable relative to each other so that at least two adjacent filter sections are arranged in parallel.

5. The composite filter according to claim 1, wherein, A protrusion is formed on at least one of the two sides of the air purification component.

6. The composite filter according to claim 5, wherein, The bracket has a recess corresponding to at least a portion of the protrusion, and has an adhesive surface for bonding to the side of the air purification component.

7. The composite filter according to claim 1, wherein, The filtering module includes a corrugated filter.

8. An air purifier, wherein, The air purifier includes: The composite filter according to any one of claims 1 to 7; and A blower provides airflow to allow outside air to pass through the composite filter.

9. A method for manufacturing a composite filter according to any one of claims 1 to 7 using a filter manufacturing apparatus, the method comprising: The stacked prefabrication provision step provides a stacked prefabrication of filter unit prefabrication and filter module prefabrication; as well as In the filter module cutting step, the cutter of the filter manufacturing device moves along an imaginary cutting line extending in the thickness direction of the laminated preform to divide the filter module preform into multiple filter modules. In the filter unit cutting step, after the filter module cutting step, the cutter moves along the cutting line between the plurality of filter modules and cuts the filter unit preform to a depth smaller than the thickness of the filter unit preform. as well as The bracket attachment step involves attaching the bracket to the sides of the filter section and the filter module, which are arranged adjacent to each other. The filter unit, which includes the plurality of filter sections and the plurality of support sections, is formed from the filter unit preform through the filter unit cutting step.

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