A plate filter
Patent Information
- Application Number
- CN202522098766.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-29
AI Technical Summary
其一、方正的外形导致安装适配性差,难以匹配非规则空间(如弧形或异形设备腔体),限制了应用场景的多样性;其二、统一的设计缺乏视觉差异化,无法满足现代工业产品对美观性与品牌辨识度的需求,降低了市场竞争力
[0020]A plate filter includes an outer frame and a filter element. The outer frame surrounds the filter element. The filter element comprises a PET filter screen, filter paper, and a honeycomb carbon plate stacked sequentially. The outer frame includes four side panels connected to define a rectangular frame. The outer frame also includes at least one rounded corner located at a corner of the rectangular frame. By setting a rounded corner structure at the corner of the outer frame, the rigid angle limitations of traditional rectangular filters are overcome, allowing it to adapt to curved equipment cavities and irregularly shaped installation spaces (such as ventilation duct corners), significantly improving installation flexibility and space utilization. The streamlined appearance breaks away from the traditional square shape, enhancing product recognition; the rounded corners eliminate sharp edges, reducing the risk of personnel injury and conforming to ergonomic design.
Smart Images

Figure CN224656288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a plate filter. Background Technology
[0002] Conventional panel filters primarily employ a square shape, with their outer layer typically consisting of a single paper frame or two identical frames joined together. While this structure provides basic filtration functionality, it suffers from the following drawbacks: First, the square shape leads to poor installation adaptability, making it difficult to fit irregular spaces (such as curved or irregularly shaped equipment cavities), thus limiting the diversity of application scenarios. Second, the uniform design lacks visual differentiation, failing to meet the aesthetic and brand recognition requirements of modern industrial products, thereby reducing market competitiveness. In conclusion, existing technologies urgently need to overcome the limitations of form and function to improve the practicality and aesthetics of filters. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a plate filter with an arc.
[0004] To solve the above-mentioned technical problems, this utility model provides a plate filter, including an outer frame and a filter component; the outer frame surrounds the filter component; the filter component includes a PET filter screen, filter paper and a honeycomb carbon plate stacked in sequence; the outer frame includes four side plates, which are connected to define a rectangular frame, and the outer frame also includes at least one rounded corner, which is located at the corner of the rectangular frame.
[0005] In a preferred embodiment, the four side panels are divided into a first side panel, a second side panel, a third side panel, and a fourth side panel;
[0006] The outer frame includes a first paper frame and a second paper frame;
[0007] The first paper frame includes a first side panel and a second side panel, with one end of the first side panel and the second side panel connected to form a folded edge;
[0008] The second paper frame includes the third side panel, the fourth side panel, and a transition section formed between the third side panel and the fourth side panel, the transition section being used to form the rounded corner.
[0009] In a preferred embodiment, the first paper frame further includes a first upper edge and a first lower edge, the first upper edge being foldably connected to the upper edge of the first side panel and the second side panel, and the first lower edge being foldably connected to the lower edge of the first side panel and the second side panel.
[0010] The second paper frame also includes a second upper edge, a second lower edge, and a plurality of spacer edges. The second upper edge is foldably connected to the upper edge of the third side panel and the fourth side panel, and the second lower edge is foldably connected to the lower edge of the third side panel and the fourth side panel. The plurality of spacer edges are foldably disposed on the upper and lower edges of the transition section.
[0011] When the transition section forms the arc angle, the plurality of spaced edges are folded to abut against the upper and lower sides of the filter element.
[0012] In a preferred embodiment, an arc-shaped sticker is also included; the arc-shaped sticker is attached to the spacer edges when the plurality of spacer edges are folded to attach to the upper and lower sides of the filter element.
[0013] In a preferred embodiment, a first connecting portion is provided at one end of the first paper frame, and a second connecting portion is provided at one end of the second paper frame. The first connecting portion is connected to the other end of the second paper frame, and the second connecting portion is connected to the other end of the first paper frame to form the rectangular frame. The filter component is placed inside the rectangular frame. The first upper edge, the first lower edge, the second upper edge, and the second lower edge are folded to be attached to the upper and lower sides of the filter component by hot melt adhesive.
[0014] In a preferred embodiment, the four side panels are divided into a first side panel, a second side panel, a third side panel, and a fourth side panel;
[0015] The outer frame includes a first paper frame and a second paper frame;
[0016] The first paper frame includes a first side panel and a second side panel, with one end of the first side panel and the second side panel connected to form a folded edge;
[0017] The second paper frame includes the third side panel, the fourth side panel, and a transition section formed between the third side panel and the fourth side panel, the transition section being used to form the rounded corner;
[0018] The upper side of the transition section has a notch, and the outer frame also includes an arc-shaped cover that covers the notch.
[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0020] A plate filter includes an outer frame and a filter element. The outer frame surrounds the filter element. The filter element comprises a PET filter screen, filter paper, and a honeycomb carbon plate stacked sequentially. The outer frame includes four side panels connected to define a rectangular frame. The outer frame also includes at least one rounded corner located at a corner of the rectangular frame. By setting a rounded corner structure at the corner of the outer frame, the rigid angle limitations of traditional rectangular filters are overcome, allowing it to adapt to curved equipment cavities and irregularly shaped installation spaces (such as ventilation duct corners), significantly improving installation flexibility and space utilization. The streamlined appearance breaks away from the traditional square shape, enhancing product recognition; the rounded corners eliminate sharp edges, reducing the risk of personnel injury and conforming to ergonomic design. Attached Figure Description
[0021] Figure 1 This is a perspective view of the plate filter in a preferred embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the filter component in a preferred embodiment of the present invention;
[0023] Figure 3 This is a schematic diagram of the unfolding of the first paper frame in a preferred embodiment of the present invention;
[0024] Figure 4 This is a schematic diagram of the unfolding of the second paper frame in a preferred embodiment of the present invention;
[0025] Figure 5 This is a schematic diagram of the arc angle in a preferred embodiment of the present invention. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0027] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.
[0028] See Figures 1-5 A plate filter includes an outer frame 1 and a filter element 2; the outer frame 1 surrounds the filter element 2; the filter element 2 includes a PET filter screen 21 (polyethylene terephthalate), filter paper 22 and a honeycomb carbon plate 23 stacked in sequence; the outer frame 1 includes four side panels connected to define a rectangular frame, and the outer frame 1 also includes at least one rounded corner 3 located at the corner of the rectangular frame.
[0029] The four side panels are divided into a first side panel 1, a second side panel 2, a third side panel 3, and a fourth side panel 4; the outer frame 1 includes a first paper frame 51 and a second paper frame 52; the first paper frame 51 includes the first side panel 1 and the second side panel 2, and one end of the first side panel 1 and the second side panel 2 are connected to form a folded edge 514; the second paper frame 52 includes the third side panel 3, the fourth side panel 4, and a transition section 521, which is formed between the third side panel 3 and the fourth side panel 4, and is used to form the arc angle 3.
[0030] The first paper frame 51 further includes a first upper edge 511 and a first lower edge 512. The first upper edge 511 is foldably connected to the upper edge of the first side plate 1 and the second side plate 2, and the first lower edge 512 is foldably connected to the lower edge of the first side plate 1 and the second side plate 2. The second paper frame 52 further includes a second upper edge 522, a second lower edge 523, and a plurality of spacer edges 524. The second upper edge 522 is foldably connected to the upper edge of the third side plate 3 and the fourth side plate 4, and the second lower edge 523 is foldably connected to the lower edge of the third side plate 3 and the fourth side plate 4. The plurality of spacer edges 524 are foldably disposed on the upper and lower edges of the transition section 521. When the transition section 521 forms the arc angle 3, the plurality of spacer edges 524 are folded to abut against the upper and lower sides of the filter component 2. The outer frame 1 also includes an arc-shaped sticker 6; when the plurality of spacer edges 524 are folded to be attached to the upper and lower sides of the filter component 2, the arc-shaped sticker 6 is attached to the spacer edges 524.
[0031] One end of the first paper frame 51 is provided with a first connecting part 513, and one end of the second paper frame 52 is provided with a second connecting part 525. The first connecting part 513 is connected to the other end of the second paper frame 52, and the second connecting part 525 is connected to the other end of the first paper frame 51 to form the rectangular frame. The filter component 2 is placed inside the rectangular frame. The first upper edge 511, the first lower edge 512, the second upper edge 522, and the second lower edge 523 are folded respectively to be attached to the upper and lower sides of the filter component 2 by hot melt adhesive.
[0032] During manufacturing, the first connecting portion 513 of the first paper frame 51 is attached to the other end of the second paper frame 52 using hot melt adhesive, and the second connecting portion 525 of the second paper frame 52 is attached to the other end of the first paper frame 51 using hot melt adhesive, to roughly form the rectangular frame. Then, the filter component 2 is placed inside the rectangular frame, and the first upper edge 511, first lower edge 512, second upper edge 522, and second lower edge 523 are folded to be attached to the upper and lower sides of the filter component 2 using hot melt adhesive. The plurality of spacer edges 524 are folded to be attached to the upper and lower sides of the filter component 2, and the arc-shaped sticker 6 is attached to the spacer edges 524. Finally, sealing cotton 4 is applied to the outer perimeter.
[0033] In some simpler replacements, the upper side of the transition segment 521 has a notch, and the outer frame 1 also includes an arc-shaped cover that covers the notch. This arc-shaped cover can be made of plastic and can be printed with information such as a logo.
[0034] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.
Claims
1. A plate filter, characterized in that, It includes an outer frame and a filter component; the outer frame surrounds the filter component; the filter component includes a PET filter screen, filter paper and a honeycomb carbon plate stacked in sequence; the outer frame includes four side plates connected to define a rectangular frame, and the outer frame also includes at least one rounded corner located at the corner of the rectangular frame.
2. A plate filter as described in claim 1, characterized in that: The four side panels are divided into a first side panel, a second side panel, a third side panel, and a fourth side panel; The outer frame includes a first paper frame and a second paper frame; The first paper frame includes a first side panel and a second side panel, with one end of the first side panel and the second side panel connected to form a folded edge; The second paper frame includes the third side panel, the fourth side panel, and a transition section formed between the third side panel and the fourth side panel, the transition section being used to form the rounded corner.
3. A plate filter as described in claim 2, characterized in that: The first paper frame also includes a first upper edge and a first lower edge, the first upper edge being foldably connected to the upper edge of the first side panel and the second side panel, and the first lower edge being foldably connected to the lower edge of the first side panel and the second side panel. The second paper frame also includes a second upper edge, a second lower edge, and a plurality of spacer edges. The second upper edge is foldably connected to the upper edge of the third side panel and the fourth side panel, and the second lower edge is foldably connected to the lower edge of the third side panel and the fourth side panel. The plurality of spacer edges are foldably disposed on the upper and lower edges of the transition section. When the transition section forms the arc angle, the plurality of spaced edges are folded to abut against the upper and lower sides of the filter element.
4. A plate filter as described in claim 3, characterized in that: It also includes arc-shaped stickers; when the plurality of spacer edges are folded to be attached to the upper and lower sides of the filter component, the arc-shaped stickers are attached to the spacer edges.
5. A plate filter as described in claim 4, characterized in that: One end of the first paper frame is provided with a first connecting part, and one end of the second paper frame is provided with a second connecting part. The first connecting part is connected to the other end of the second paper frame, and the second connecting part is connected to the other end of the first paper frame to form the rectangular frame. The filter component is placed inside the rectangular frame. The first upper edge, the first lower edge, the second upper edge, and the second lower edge are folded respectively to be attached to the upper and lower sides of the filter component by hot melt adhesive.
6. A plate filter as described in claim 1, characterized in that: The four side panels are divided into a first side panel, a second side panel, a third side panel, and a fourth side panel; The outer frame includes a first paper frame and a second paper frame; The first paper frame includes a first side panel and a second side panel, with one end of the first side panel and the second side panel connected to form a folded edge; The second paper frame includes the third side panel, the fourth side panel, and a transition section formed between the third side panel and the fourth side panel, the transition section being used to form the rounded corner; The upper side of the transition section has a notch, and the outer frame also includes an arc-shaped cover that covers the notch.