Novel filter cavity
Through the MIM process, the functional surface and other components of the molded cavity are injected into the MIM process, and the problems of high costs and insufficient wall thickness in the existing filter cavity production process are solved, achieving lightweighting and improved accuracy of the filter cavity.
Patent Information
- Application Number
- CN202420875306.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing filter cavity production process leads to bad product, which requires machining to ensure dimensional accuracy, and the wall thickness cannot be too thin, resulting in high cost and cannot be lightweight, which cannot meet the needs of use.
The MIM process is used to inject and mold the functional surface of the cavity, the resonant slot, the positioning protrusion, the resonant column, the joint thread and other components into one to reduce or eliminate machining requirements and achieve a lightweight design with a minimum wall thickness of 0.4MM.
It reduces production costs, avoids the complexity of machining, realizes the maximum weight of the filter cavity, and ensures the accuracy and reliability of the product.
Smart Images
Figure CN222146548U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filter cavities, in particular to a novel filter cavity. Background Art
[0002] The existing filter cavity production process produces rough products, and many functional surfaces and mating surfaces need to be machined to ensure the accuracy of product dimensions. In addition, the cavity wall thickness cannot be too thin, and the product weight cannot be minimized, resulting in high product costs and failure to meet usage requirements. Considering the above situation, we have proposed a new filter cavity. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a new filter cavity.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A novel filter cavity comprises a cavity body and a cavity functional surface matched with the cavity body, wherein the cavity body is threadedly fixed on the top of the cavity functional surface, a plurality of resonant columns are prefabricated on the cavity functional surface, the cavity body is movably sleeved on the plurality of resonant columns, a first flying card slot and a second flying card slot are prefabricated on the top of the cavity functional surface, a first joint thread and a second joint thread are prefabricated on both sides of the top of the cavity body, through holes are opened on both sides of the top of the cavity functional surface, and the first joint thread and the second joint thread are aligned and connected with the corresponding through holes respectively.
[0006] Preferably, a plurality of penetration holes are opened on the top of the cavity body, and the resonant columns are located in corresponding penetration holes and are in active contact with inner walls of the penetration holes.
[0007] Preferably, the top front side and the top rear side of the cavity functional surface are integrally provided with positioning protrusions, the bottom and top of the cavity body are provided with two positioning grooves, the sides of the two positioning grooves away from each other are both set as openings, and the positioning protrusions are movably sleeved in the corresponding positioning grooves.
[0008] Preferably, the four corners of the cavity body and the four corners of the cavity functional surface are all set as concave arc structures and are integrally provided with an outer edge, a first bolt hole is opened at the top of the outer edge, and two first bolt holes opposite to each other are aligned.
[0009] Preferably, second bolt holes are provided on the top inner wall of the positioning groove located below and the top front side and the top rear side of the cavity functional surface, and the two second bolt holes facing each other up and down are aligned.
[0010] Preferably, the minimum wall thickness of the cavity body can be 0.4MM.
[0011] Preferably, the cavity functional surface, the first Rongfei card slot, the second Rongfei card slot, the positioning protrusion, the resonant column, the first joint thread and the second joint thread are all integrally injection molded and manufactured by MIM process.
[0012] Compared with the existing technology, the beneficial effects of the utility model are:
[0013] The utility model can integrally injection mold the cavity functional surface, the first flying card slot, the second flying card slot, the positioning protrusion, the resonance column, the first joint thread and the second joint thread through the MIM process, without the need for machining. Compared with traditional machining, the cost is lower, and the wall thickness of the cavity body can be as low as 0.4MM, thereby achieving maximum lightweight. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of an exploded three-dimensional structure of a novel filter cavity proposed by the utility model.
[0015] In the figure: 1. First Rongfei card slot; 2. Second Rongfei card slot; 3. Cavity functional surface; 4. Resonance column; 5. Second joint thread; 6. First joint thread; 7. Cavity body; 8. Positioning groove; 9. Outer edge; 10. Insertion hole; 11. Through hole; 12. Second bolt hole; 13. Positioning protrusion; 14. First bolt hole. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0017] Reference Figure 1A novel filter cavity comprises a cavity body 7 and a cavity functional surface 3 matched with the cavity body 7, the cavity body 7 is threadedly fixed on the top of the cavity functional surface 3, wherein the four corners of the cavity body 7 and the four corners of the cavity functional surface 3 are all set as concave arc structures and are integrally provided with an outer edge 9, a first bolt hole 14 is opened on the top of the outer edge 9, and the two first bolt holes 14 opposite to each other are aligned, and the first bolt holes 14 are matched with external bolts to realize the threaded fixation of the cavity body 7 and the cavity functional surface 3, the top front side and the top rear side of the cavity functional surface 3 are integrally provided with positioning protrusions 13, and the bottom of the cavity body 7 Two positioning grooves 8 are provided at the bottom and the top, and the two positioning grooves 8 are opened on one side away from each other. The positioning protrusions 13 are movably sleeved in the corresponding positioning grooves 8. The positioning protrusions 13 cooperate with the positioning grooves 8 to realize the positioning between the cavity body 7 and the cavity functional surface 3. The top inner wall of the positioning groove 8 located below and the top front side and the top rear side of the cavity functional surface 3 are provided with second bolt holes 12. The two second bolt holes 12 facing each other are aligned. The second bolt holes 12 cooperate with the external bolts to realize further fixation between the cavity body 7 and the cavity functional surface 3. The wall thickness of the cavity body 7 can be as small as 0.4MM.
[0018] A plurality of resonant columns 4 are prefabricated on the cavity functional surface 3, and the cavity body 7 is movably sleeved on the plurality of resonant columns 4, wherein a plurality of penetration holes 10 are opened on the top of the cavity body 7, and the resonant columns 4 are located in the corresponding penetration holes 10 and movably contact with the inner wall of the penetration holes 10, and a first flying card slot 1 and a second flying card slot 2 are prefabricated on the top of the cavity functional surface 3, and a first joint thread 6 and a second joint thread 5 are prefabricated on both sides of the top of the cavity body 7, and through holes 11 are opened on both sides of the top of the cavity functional surface 3, and the first joint thread 6 and the second joint thread 5 are respectively aligned and connected with the corresponding through holes 11, wherein the cavity The functional surface 3, the first flying card slot 1, the second flying card slot 2, the positioning protrusion 13, the resonance column 4, the first joint thread 6 and the second joint thread 5 are all injection molded as one piece, and are developed through the MIM process, and do not require machining; the utility model can use the MIM process to integrally injection mold the cavity functional surface 3, the first flying card slot 1, the second flying card slot 2, the positioning protrusion 13, the resonance column 4, the first joint thread 6 and the second joint thread 5, without machining. Compared with traditional machining, the cost is lower, and the wall thickness of the cavity body 7 can be as low as 0.4MM, thereby being able to maximize lightweight.
[0019] Working principle: The cavity functional surface 3 and the cavity main body 7 are matched with external bolts through the second bolt hole 12 and the first bolt hole 14, so that the cavity functional surface 3 and the cavity main body 7 can be fixed, and the cavity main body 7 is sleeved on multiple resonant columns 4 through multiple penetration holes 10, and the positioning protrusion 13 is sleeved in the corresponding positioning groove 8. The positioning protrusion 13 and the positioning groove 8 cooperate to achieve the positioning installation between the cavity functional surface 3 and the cavity main body 7;
[0020] In addition, the cavity functional surface 3, the first flying card slot 1, the second flying card slot 2, the positioning protrusion 13, the resonance column 4, the first joint thread 6 and the second joint thread 5 are all integrally injection molded by MIM process, and do not require machining. Compared with traditional machining, the cost is lower. In addition, the wall thickness of the cavity body 7 can be as low as 0.4MM, so that it can be lightweight to the greatest extent.
[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A novel filter cavity, comprising a cavity body (7) and a cavity functional surface (3) matched with the cavity body (7), characterized in that: The cavity body (7) is threadedly fixed on the top of the cavity functional surface (3), a plurality of resonant columns (4) are prefabricated on the cavity functional surface (3), the cavity body (7) is movably sleeved on the plurality of resonant columns (4), a first fly-cage slot (1) and a second fly-cage slot (2) are prefabricated on the top of the cavity functional surface (3), a first joint thread (6) and a second joint thread (5) are prefabricated on both sides of the top of the cavity body (7), through holes (11) are provided on both sides of the top of the cavity functional surface (3), and the first joint thread (6) and the second joint thread (5) are respectively aligned and connected with the corresponding through holes (11).
2. A novel filter cavity according to claim 1, characterized in that: A plurality of penetration holes (10) are provided on the top of the cavity body (7), and the resonant columns (4) are located in corresponding penetration holes (10) and are in active contact with the inner walls of the penetration holes (10).
3. A novel filter cavity according to claim 1, characterized in that: The top front side and the top rear side of the cavity functional surface (3) are integrally provided with positioning protrusions (13), the bottom and the top of the cavity body (7) are provided with two positioning grooves (8), the sides of the two positioning grooves (8) away from each other are both set as openings, and the positioning protrusions (13) are movably sleeved in the corresponding positioning grooves (8).
4. A novel filter cavity according to claim 1, characterized in that: The four corners of the cavity body (7) and the four corners of the cavity functional surface (3) are all set as concave arc structures and are integrally provided with an outer edge (9), and a first bolt hole (14) is opened at the top of the outer edge (9), and two first bolt holes (14) opposite to each other are aligned.
5. A novel filter cavity according to claim 3, characterized in that: Second bolt holes (12) are provided on the top inner wall of the positioning groove (8) located below and the top front side and top rear side of the cavity functional surface (3), and the two second bolt holes (12) facing each other are aligned.
6. A novel filter cavity according to claim 1, characterized in that: The wall thickness of the cavity body (7) can be as small as 0.4 MM.
7. The novel filter cavity according to claim 3 is characterized in that: The cavity functional surface (3), the first Rongfei card slot (1), the second Rongfei card slot (2), the positioning protrusion (13), the resonant column (4), the first joint thread (6) and the second joint thread (5) are all integrally injection molded and manufactured using the MIM process.