CN213313927U - Paper frame for filter element, filter element and air purifier with same - Google Patents

Abstract

The utility model discloses a filter core note paper frame, filter core and have its air purifier, the filter core note paper frame is square shape and has relative and open advancing end and the play end each other in the first direction, at least one lateral wall of paper frame has the ladder face, the paper frame is made by a slice expansion thing, the expansion thing is cut according to predetermined shape an organic whole by paper materials and is formed, the expansion thing has the folding line, the expansion thing is folded according to the folding line and the formation is pasted to head and the tail mutually the paper frame, the ladder face by the direct folding formation of expansion thing. From this, through adopting a slice an organic whole to tailor the expansion thing that forms, will expand the thing folding and beat and glue just can obtain the paper frame that can load the filter core body once, this kind of integral type expansion thing can fast assembly become the paper frame, especially to the inside situation that sets up the heterotypic filter screen of paper frame, directly can fold out the ladder face, saves the cost of labor, has improved production efficiency.

Description

Paper frame for filter element, filter element and air purifier with same

Technical Field

The utility model belongs to the technical field of air purification and specifically relates to an air purifier who relates to a paper frame, filter core and have it are used to the filter core.

Background

At present, the filter element (paper frame structure type) of the common air purifier is generally in a square shape, and the mode of splicing the paper frame is overlapped by two paper boards (black paperboard and other materials). Especially to the filter core of dysmorphism structure, the packaging efficiency can be very low, leads to the cost of labor height.

The conventional paper frame is formed by folding and bonding a plurality of sheets which are cut independently, and needs to be glued and spliced firstly and then assembled into a folded semi-finished product. The paper frame needs to be glued at multiple places to assemble multiple sheets, gluing places are multiple, and assembly is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a paper frame is used to filter core, filter core and have its air purifier.

According to the utility model discloses paper frame is used to filter core of first aspect embodiment, paper frame is the square body shape and has and relative each other and open advancing end and the play end in the first direction, at least one lateral wall of paper frame has the ladder face, paper frame is made by a slice expansion thing, the expansion thing is cut according to predetermined shape an organic whole by paper materials and is formed, the expansion thing has the folding line, the expansion thing is folded according to the folding line and paste the formation head and the tail the paper frame, the ladder face by the direct folding formation of expansion thing.

From this, through adopting a slice an organic whole to tailor the expansion thing that forms, will expand the thing folding and beat and glue just can obtain the paper frame that can load the filter core body once, this kind of integral type expansion thing can fast assembly become the paper frame, especially to the inside situation that sets up the heterotypic filter screen of paper frame, directly can fold out the ladder face, saves the cost of labor, has improved production efficiency.

In some embodiments, the unfolding object comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged along the second direction, the head end of the first side plate is bonded with the tail end of the fourth side plate, and the stepped surface is formed by the third side plate.

In some embodiments, the third side panel includes a main panel body, a transition panel body, and an inner fold panel body, which are sequentially distributed along a first direction and are separated by a folding line, the main panel body is connected with the second side panel and the third side panel and is separated by a folding line, the transition panel body and the second side panel, the transition panel body and the fourth side panel, the inner fold panel body and the second side panel, and the inner fold panel body and the fourth side panel are separated from each other, and the transition panel body is formed as a stepped surface.

In some embodiments, the second side plate and the fourth side plate are provided with an avoidance edge, and two ends of the inner folding plate body in the second direction are provided with folding edges extending into the avoidance edge in an unfolded state, and the folding edges are separated from the avoidance edge by cutting along a cutting line.

In some embodiments, the head end of the first side plate has a connecting flange for attaching the tail end of the fourth side plate, the opposite edges of the first to fourth side plates in the first direction are provided with limiting flanges, and the folding directions of the limiting flanges and the connecting flange are both folded towards the same side of the unfolding object.

In some embodiments, the connecting folding edge and the limiting folding edge are both trapezoidal, and the included angle formed by the waist of the trapezoid and the height of the trapezoid is 42-45 degrees.

According to the utility model discloses filter core of second aspect embodiment includes: the filter element comprises a first filter element body, a second filter element body and a paper frame for the filter element, wherein the second filter element body is higher in filtering grade than the first filter element body; the first filter core body, the second filter core body is in the inside range upon range of setting of paper frame, and both separate through the ladder face.

In some embodiments, the filter element further comprises a pull handle disposed outside the rim, the pull handle being configured to allow an operator to pull the filter element.

According to the utility model discloses air purifier of third aspect embodiment includes: the box and the filter core, the filter core is located in the box.

In some embodiments, the housing has a socket through which the filter cartridge can move into and out of the housing when disassembled, the socket having a step positioning portion adapted to the shape of the step surface.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a paper frame according to an embodiment of the first aspect of the present invention.

Fig. 2 is a schematic diagram of a development for making a paper frame according to an embodiment of the present invention.

Fig. 3 is a schematic view of a filter cartridge according to an embodiment of the second aspect of the invention.

Fig. 4 is a schematic view of an air purifier according to a third embodiment of the present invention.

Reference numerals:

the paper frame 10 is provided with a paper frame,

an inlet end a, an outlet end b, a step surface c,

the unfolding object 10', the first side plate 11, the second side plate 12, the third side plate 13, the main plate body 131, the transition plate body 132, the inner folded plate body 133, the folded edge 134, the fourth side plate 14, the folding line d, the cutting line e, the avoiding edge f, the connecting folded edge g, the limiting folded edge h, the strip-shaped hole 15,

the second filter element body 20, the handle 30, the filter element 100, the box body 200, the insertion opening 201, the step positioning part 202 and the air purifier 1000.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A paper frame 10 for a filter cartridge 100, and an air cleaner 1000 according to an embodiment of the present invention will be described with reference to fig. 1 to 4.

As shown in fig. 1 and 2, according to the paper frame 10 for the filter cartridge 100 of the embodiment of the first aspect of the present invention, the paper frame 10 is a square body and has an inlet end a and an outlet end b opposite to each other and opened in a first direction, at least one side wall of the paper frame 10 has a step surface c, the paper frame 10 is made of a piece of developed object 10 ', the developed object 10 ' is integrally cut from paper material according to a predetermined shape, the developed object 10 ' has a folding line d, the developed object 10 ' is folded according to the folding line d and is pasted end to form the paper frame 10, and the step surface c is formed by directly folding the developed object 10 '.

It should be noted that the developed object 10 ' refers to a cardboard cut into a predetermined shape, the developed object 10 ' also has a folding line d, and the paper frame 10 after final forming can be obtained by folding the developed object 10 ' along the folding line d and gluing the folded object at the end-to-end position.

From this, through the expansion thing 10 ' that adopts a slice integrative to tailor to form, fold this expansion thing 10 ' and beat once and glue and just can obtain the paper frame 10 that can load the filter core body, this kind of integral type expansion thing 10 ' can fast assembly become paper frame 10, especially to the inside situation that sets up the heterotypic filter screen of paper frame 10, directly can fold out the ladder face c, saves the cost of labor, has improved production efficiency.

In some embodiments, referring to fig. 2, the development 10' includes a first side plate 11 to a fourth side plate 14 arranged in sequence along the second direction, a head end of the first side plate 11 is bonded to a tail end of the fourth side plate 14, and a step surface c is formed by the third side plate 13. Therefore, the third side plate 13 is folded to form the step surface c, so that the appearance is attractive, and the operation is convenient.

Further, the third side panel 13 includes a main panel body 131, a transition panel body 132, and an inner flap body 133, which are sequentially distributed along the first direction and are demarcated by a folding line d, the main panel body 131 is connected with the second side panel 12 and the third side panel 13 and is demarcated by the folding line d, the transition panel body 132 and the second side panel 12, the transition panel body 132 and the fourth side panel 14, the inner flap body 133 and the second side panel 12, and the inner flap body 133 and the fourth side panel 14 are partitioned, and the transition panel body 132 is formed as a stepped surface c. Thus, in the finally folded paper frame 10, the inward folding plate 133 is recessed inward relative to the main plate 131 to fit the irregular filter element, and the stepped surface c formed by the transition plate 132 is used for positioning the filter element.

Alternatively, the second side plate 12 and the fourth side plate 14 each have an avoidance edge f, and both ends of the inner folded plate body 133 in the second direction are provided with folded edges 134 extending into the avoidance edge f in the unfolded state, and the folded edges 134 are separated from the avoidance edge f by being cut along the cutting line e. Wherein the second direction is perpendicular to the first direction.

Thus, the folded edge 134 and the avoiding edge f can be cut off by making a full-penetration cutter on the same sheet, each folding line d can be obtained by making a half-penetration cutter, paper materials between the third side plate 13 and surrounding plate bodies are utilized to the maximum extent, the cutting leftovers are reduced, and the manufacturing process of the unfolded object 10' is simpler.

In the specific embodiment shown in fig. 2, the head end of the first side plate 11 has a connecting flange g for attaching the tail end of the fourth side plate 14, the opposite edges of the first to fourth side plates 14 in the first direction are provided with a limiting flange h, and the folding directions of the limiting flange h and the connecting flange g are both folded towards the same side of the unfolding object 10'. From this, connect hem g and can range upon range of to set up to fourth curb plate 14 inboard and glue in the region of both contacts to make the preliminary shaping of side frame, spacing hem h can carry on spacingly to the filter core 100 of packing into in the paper frame 10, places filter core 100 and deviate from.

In some embodiments, the connecting folding edge g and the limiting folding edge h are both trapezoidal, and the included angle formed by the waist of the trapezoid and the height of the trapezoid is 42-45 degrees. Therefore, due to the arrangement of the angles, the adjacent folded edges 134 are overlapped after the paper frame 10 is folded, the strength of the paper frame 10 is enhanced, and air leakage at the junction of the folded edges 134 is avoided.

Referring to fig. 3, a filter cartridge 100 according to an embodiment of the present invention includes: the paper frame 10 for the filter element 100 comprises a first filter element body, a second filter element body 20 and a filter element, wherein the second filter element body 20 has a higher filtration grade than the first filter element body; the first filter element body and the second filter element body 20 are stacked inside the paper frame 10, and are separated by the step surface c. The first filter core may be a medium efficiency HEPA and the second filter core 20 may be a high efficiency HEPA.

The paper frame 10 is designed into a ladder structure, the first filter core body and the second filter core body 20 can be separated respectively, the assembly is convenient, in addition, when a terminal customer installs a product, how to assemble the product can be directly distinguished, the direction does not need to be distinguished, and the ladder clamping position of the machine can correspond to the ladder installation of the product.

In some embodiments, filter cartridge 100 further includes a pull handle 30, and pull handle 30 is disposed outside of the rim, and pull handle 30 is configured to allow an operator to pull filter cartridge 100. Therefore, the design of the handle 30 facilitates the replacement of the filter cartridge 100, and two strip-shaped holes 15 can be cut on the developed object 10' for the handle 30 to pass through and be fixed.

According to the utility model discloses air purifier 1000 of third aspect embodiment includes: case 200 and filter element 100 of the above-described embodiment, filter element 100 is provided in case 200. From this, filter core 100 can adopt well effect HEPA + high-efficient HEPA + paper frame 10, and the fan starts the back, and the air is earlier after the first coarse filtration of well effect HEPA, and the fine filtration of rethread high-efficient HEPA can improve the whole life of product.

As shown in fig. 4, the housing 200 has a socket 201 so that the filter cartridge 100 can move into and out of the housing 200 through the socket 201 when disassembled, and the socket 201 has a step positioning portion 202 adapted to the shape of the step surface c. Therefore, the stepped surface c not only can separate and position the two filter element bodies inside the paper frame 10, but also can play a role in installation and positioning when the filter element 100 is installed in the box body 200, thereby avoiding the disorderly installation direction of the filter element 100 and having the effect of preventing misassembly.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a paper frame is used to filter core, its characterized in that, paper frame is the square body shape and has and relative each other and open advancing end and play end in the first direction, at least one lateral wall of paper frame has the ladder face, paper frame is made by a slice expansion thing, the expansion thing is cut according to predetermined shape an organic whole by paper materials and is formed, the expansion thing has the folding line, the expansion thing is folded according to the folding line and the formation is pasted mutually end to end the paper frame, the ladder face by the direct folding formation of expansion thing.

2. The paper frame for filter element according to claim 1, wherein the developed material includes a first side plate, a second side plate, a third side plate, and a fourth side plate arranged in sequence along the second direction, wherein the head end of the first side plate is bonded to the tail end of the fourth side plate, and the stepped surface is formed by the third side plate.

3. The paper frame for filter element according to claim 2, wherein the third side plate comprises a main plate body, a transition plate body and an inner folding plate body which are distributed in sequence along a first direction and are separated by folding lines, the main plate body is connected with the second side plate and the third side plate and is separated by folding lines, the transition plate body and the second side plate, the transition plate body and the fourth side plate, the inner folding plate body and the second side plate, and the inner folding plate body and the fourth side plate are separated, and the transition plate body is formed into a step surface.

4. The border for paper for filter element according to claim 3, wherein the second side plate and the fourth side plate each have an avoidance edge, and both ends of the inner flap body in the second direction are provided with folded edges extending into the avoidance edges in the unfolded state, and the folded edges are separated from the avoidance edges by cutting along the cutting line.

5. The paper frame for filter element as claimed in claim 2, wherein the head end of the first side plate is provided with a connecting flange for attaching the tail end of the fourth side plate, the opposite edges of the first to fourth side plates in the first direction are provided with limit flanges, and the folding directions of the limit flanges and the connecting flange are folded towards the same side of the unfolded object.

6. The paper frame for filter element as claimed in claim 5, wherein the connecting folding edge and the limiting folding edge are both trapezoidal, and the included angle formed by the trapezoidal waist and the trapezoidal height is 42-45 °.

7. A filter cartridge, comprising:

a first filter element body;

the filtering grade of the second filter core body is higher than that of the first filter core body; and

the paper frame for a filter element according to any one of claims 1 to 6, wherein the first filter element body and the second filter element body are stacked inside the paper frame and are separated by a stepped surface.

8. The filter cartridge of claim 7, further comprising a pull handle disposed outside the rim, the pull handle configured to allow an operator to pull the filter cartridge.

9. An air purifier, comprising:

a box body; and

a filter element according to any one of claims 7 to 8, which is provided in the housing.

10. The air cleaner of claim 9, wherein the housing has a socket through which the filter element is movable into and out of the housing when disassembled, the socket having a step positioning portion adapted to a shape of the step surface.

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