High-performance filter with shielding function

Abstract

The utility model relates to the technical field of filters, and provides a high-performance filter with a shielding function, which comprises a bottom plate, a shielding shell arranged above the bottom plate, a folded edge integrally formed on the side of the bottom of the shielding shell, a rectangular groove arranged at the bottom of the folded edge, and a rectangular sealing ring bonded in the rectangular groove, and the bottom of the rectangular sealing ring is in contact with the top of the bottom plate. The filter body is located between the bottom plate and the shielding shell, the shielding shell is manually taken up, the T-shaped clamping plate is adjusted to be aligned with the T-shaped groove, after alignment, the shielding shell and the T-shaped clamping plate are pushed to be clamped in the T-shaped groove in a sliding mode, the rectangular sealing ring abuts against the top of the bottom plate, and under abutting of the rectangular sealing ring, the filter body is clamped in the T-shaped groove in a sliding mode. The sealing device is used for sealing a gap between the bottom plate and the shielding shell, so that the filter body between the bottom plate and the shielding shell is effectively sealed to shield signals, and the shielding efficiency of the filter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and specifically to a high-performance filter with a shielding function. Background Art

[0002] A filter is a filtering circuit composed of capacitors, inductors and resistors. The function of a filter is to allow signals of a certain frequency to pass smoothly, while signals of other frequencies are greatly suppressed. It is essentially a frequency selection circuit. In the filter, the frequency range in which the signal can pass is called the passband or passband. Conversely, the frequency range in which the signal is greatly attenuated or completely suppressed is called the block. The dividing frequency between the passband and the stopband is called the cutoff frequency. The voltage gain of an ideal filter in the passband is a constant, and the voltage gain in the stopband is zero. There is a transition band with a certain frequency range between the passband and the stopband of an actual filter, but existing filter devices have many problems or defects.

[0003] Known Chinese publicly authorized utility model: (publication number: 202022264374.8) discloses a high-performance filter with shielding function. The technical problem to be solved by the utility model is the cumbersome installation of filter shielding and the difficulty of filter heat dissipation. In order to solve the problems in the above-mentioned technology, the utility model provides a high-performance filter with shielding function. The utility model is composed of a bottom plate, a shielding shell, a fixing frame slide, a filter body and a heat dissipation fixing frame. While shielding the filter signal, the connection between the shielding shell and the bottom plate is used to realize the rapid disassembly and installation of the filter, which facilitates the installation and disassembly of the filter shielding. Through the provided heat dissipation fixing frame, the heat generated during the operation of the filter is transferred between the base, the support plate and the partition, so as to realize the heat dissipation of the filter in a closed environment to avoid affecting the working effect of the filter.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned high-performance filter with shielding function has the following problems: during use, the prior art is not convenient for sealing the gap between the bottom plate and the shielding shell, resulting in loose sealing of the filter body, resulting in poor shielding signal and reducing the shielding efficiency of the filter. Therefore, a high-performance filter with shielding function is proposed. Utility Model Content

[0005] The utility model provides a high-performance filter with a shielding function, which solves the problem in the related art that it is inconvenient to seal the gap between the bottom plate and the shielding shell, resulting in loose sealing of the filter body, resulting in shielding signal insertion, and reducing the shielding efficiency of the filter.

[0006] The technical solution of the utility model is as follows: A high-performance filter with a shielding function, comprising: a bottom plate, a shielding shell arranged above the bottom plate, a folded edge integrally formed on the bottom side of the shielding shell, a rectangular groove opened at the bottom of the folded edge and a rectangular sealing ring bonded to the inside of the rectangular groove, wherein the bottom of the rectangular sealing ring contacts the top of the bottom plate;

[0007] A filter body, wherein the filter body is located between the bottom plate and the shielding shell;

[0008] A T-shaped groove is relatively opened on the top of the bottom plate, and a T-shaped clamping plate is relatively fixedly installed on the bottom of the shielding shell, and the T-shaped clamping plate is slidably clamped with the T-shaped groove;

[0009] A heat dissipation mechanism is arranged at the bottom of the base plate.

[0010] Preferably, the heat dissipation mechanism includes a rectangular frame fixedly installed on the bottom of the base plate, a honeycomb mesh plate fixedly installed on the bottom of the rectangular frame by screws, and a plurality of copper plates fixedly installed on the bottom of the base plate from left to right in sequence, the tops of the plurality of copper plates are bonded to the bottom of the filter body by thermally conductive adhesive, and the bottoms of the plurality of copper plates are located inside the rectangular frame.

[0011] Preferably, a fixing frame is fixedly mounted on the inner side wall of the rectangular frame, and two cooling fans are relatively fixedly mounted on the top of the fixing frame.

[0012] Preferably, a filter screen and filter cotton are fixedly mounted on the inner side walls of the rectangular frame, respectively, and the filter cotton is located between the filter screen and the fixing frame.

[0013] Preferably, L-plates are fixedly mounted at the four bottom corners of the bottom plate, and mounting holes are formed through the L-plates.

[0014] Preferably, a fixing block is fixedly installed on one side of the shielding shell, a through hole is penetrated through one side of the fixing block, the fixing block and the shielding shell are communicated through the through hole, a sliding groove is provided inside the through hole, a sliding plate is slidably connected inside the sliding groove, a semicircular groove is provided at the bottom of the sliding plate, two springs are relatively fixedly installed on the top of the sliding plate, the top ends of the two springs are fixedly connected to the inner top wall of the sliding groove, and semicircular sealing gaskets are bonded to the through hole and the inside of the semicircular groove.

[0015] The working principle and beneficial effects of the utility model are:

[0016] Manually pick up the shielding shell and adjust the T-shaped card plate to align with the T-shaped slot. After alignment, push the shielding shell, and the T-shaped card plate slides and snaps into the inside of the T-shaped slot, so that the rectangular sealing ring contacts the top of the bottom plate. Under the contact of the rectangular sealing ring, the gap between the bottom plate and the shielding shell is sealed, thereby effectively sealing the filter body between the bottom plate and the shielding shell to shield the signal, thereby improving the shielding efficiency of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the shielding shell proposed in the utility model;

[0020] Figure 3 This is a partial three-dimensional structural schematic diagram of the shielding shell proposed in the utility model;

[0021] Figure 4 The utility model proposes Figure 3 A in the figure is an enlarged schematic diagram of the three-dimensional structure;

[0022] In the figure: 1, bottom plate; 2, shielding shell; 3, folded edge; 4, filter body; 5, rectangular groove; 6, rectangular sealing ring; 7, T-shaped groove; 8, heat dissipation mechanism; 9, fixing block; 10, through hole; 11, slide groove; 12, spring; 13, sliding plate; 14, T-shaped card plate; 15, L plate; 16, mounting hole; 17, semicircular sealing gasket; 81, rectangular frame; 82, honeycomb mesh plate; 83, fixing frame; 84, cooling fan; 85, filter cotton; 86, filter screen; 87, copper plate. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1 - Figure 4A high-performance filter with shielding function, comprising: a bottom plate 1, a shielding shell 2 arranged above the bottom plate 1, a folded edge 3 integrally formed on the bottom side of the shielding shell 2, a rectangular groove 5 opened at the bottom of the folded edge 3 and a rectangular sealing ring 6 bonded to the inside of the rectangular groove 5, the bottom of the rectangular sealing ring 6 is in contact with the top of the bottom plate 1;

[0026] The filter body 4 is located between the bottom plate 1 and the shielding shell 2;

[0027] A T-shaped slot 7 is relatively opened on the top of the bottom plate 1 , and a T-shaped clamping plate 14 is relatively fixedly installed on the bottom of the shielding shell 2 , and the T-shaped clamping plate 14 is slidably clamped with the T-shaped slot 7 .

[0028] The utility model provides a high-performance filter with a shielding function. The shielding shell 2 is manually picked up, and the T-shaped clamping plate 14 is adjusted to align with the T-shaped slot 7. After alignment, the shielding shell 2 is pushed to make the T-shaped clamping plate 14 slide and clamp inside the T-shaped slot 7, so that the rectangular sealing ring 6 is in contact with the top of the bottom plate 1. Under the contact of the rectangular sealing ring 6, the gap between the bottom plate 1 and the shielding shell 2 is sealed, so that the filter body 4 between the bottom plate 1 and the shielding shell 2 is effectively sealed and shielded, thereby improving the shielding efficiency of the filter.

[0029] Furthermore, L-plates 15 are fixedly mounted at the four corners of the bottom of the base plate 1 , and mounting holes 16 are formed through the L-plates 15 .

[0030] Specifically, by fixing the L-plate 15 at the four corners of the bottom of the base plate 1, a mounting hole 16 is provided through which a bolt is effectively inserted to effectively connect the base plate 1 to a wall or an external object.

[0031] Furthermore, a fixing block 9 is fixedly installed on one side of the shielding shell 2, and a through hole 10 is penetrated through one side of the fixing block 9. The fixing block 9 and the shielding shell 2 are communicated through the through hole 10. A sliding groove 11 is provided inside the through hole 10, and a sliding plate 13 is slidably connected inside the sliding groove 11. A semicircular groove is provided at the bottom of the sliding plate 13, and two springs 12 are relatively fixedly installed on the top of the sliding plate 13. The top ends of the two springs 12 are fixedly connected to the inner top wall of the sliding groove 11, and semicircular sealing gaskets 17 are bonded to the through hole 10 and the semicircular groove.

[0032] Specifically, the sliding plate 13 is used to seal the gap between the through hole 10 and the externally connected wire, thereby effectively preventing the shielding shell 2 from being sealed inaccurately and causing leakage;

[0033] By pushing the sliding plate 13, the linkage sliding plate 13 slides inside the slide groove 11, and the spring 12 contracts, the sealing of different types of connecting wires can be adjusted. The squeezing force of the spring 12 effectively makes the semicircular sealing gasket 17 contact the connecting wire more closely, thereby improving the sealing and shielding performance of the shielding shell 2.

[0034] Embodiment 2

[0035] Based on the first embodiment, the present embodiment includes: a heat dissipation mechanism 8, which is arranged at the bottom of the base plate 1, and the heat dissipation mechanism 8 includes a rectangular frame 81 fixedly installed at the bottom of the base plate 1, a honeycomb mesh plate 82 fixedly installed at the bottom of the rectangular frame 81 by screws, and a plurality of copper plates 87 that pass through and are fixedly installed at the bottom of the base plate 1 from left to right, the tops of the plurality of copper plates 87 are bonded to the bottom of the filter body 4 by heat-conducting adhesive, the bottoms of the plurality of copper plates 87 are located inside the rectangular frame 81, a fixing frame 83 is fixedly installed on the inner side wall of the rectangular frame 81, and two heat dissipation fans 84 are relatively fixedly installed on the top of the fixing frame 83, and a filter screen 86 and a filter cotton 85 are also fixedly installed on the inner side wall of the rectangular frame 81, respectively, and the filter cotton 85 is located between the filter screen 86 and the fixing frame 83.

[0036] The technical solution provided by this embodiment is: by starting the heat dissipation fan 84, the external gas enters the interior of the rectangular frame 81 through the honeycomb mesh plate 82, the filter 86 and the filter cotton 85, and the large particle impurities are filtered through the honeycomb mesh plate 82, and the filter 86 and the filter cotton 85 filter the fine particle impurities, which effectively prevents the particle impurities from entering the interior of the rectangular frame 81 and being clamped between multiple copper plates 87, thereby improving the thermal conductivity of the copper plates 87. The heat dissipation fan 84 blows the filtered gas onto the multiple copper plates 87 to offset the heat exported from the filter body 4 by the multiple copper plates 87, effectively cools the filter body 4, and improves the use efficiency and service life of the filter body 4.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high performance filter with shielding function, characterized in that: include: A bottom plate (1), a shielding shell (2) arranged above the bottom plate (1), a folded edge (3) integrally formed on the bottom side of the shielding shell (2), a rectangular groove (5) provided at the bottom of the folded edge (3), and a rectangular sealing ring (6) bonded to the inside of the rectangular groove (5), wherein the bottom of the rectangular sealing ring (6) is in contact with the top of the bottom plate (1); A filter body (4), the filter body (4) being located between the bottom plate (1) and the shielding shell (2); A T-shaped groove (7) is relatively opened on the top of the bottom plate (1), and a T-shaped clamping plate (14) is relatively fixedly installed on the bottom of the shielding shell (2), and the T-shaped clamping plate (14) is slidably clamped with the T-shaped groove (7); A heat dissipation mechanism (8), wherein the heat dissipation mechanism (8) is arranged at the bottom of the base plate (1).

2. A high performance filter with shielding function according to claim 1, characterized in that: The heat dissipation mechanism (8) comprises a rectangular frame (81) fixedly mounted on the bottom of the base plate (1), a honeycomb mesh plate (82) fixedly mounted on the bottom of the rectangular frame (81) by means of screws, and a plurality of copper plates (87) fixedly mounted on the bottom of the base plate (1) in sequence from left to right, the tops of the plurality of copper plates (87) being bonded to the bottom of the filter body (4) by means of heat-conducting adhesive, and the bottoms of the plurality of copper plates (87) being located inside the rectangular frame (81).

3. A high performance filter with shielding function according to claim 2, characterized in that: A fixing frame (83) is fixedly mounted on the inner side wall of the rectangular frame (81), and two cooling fans (84) are relatively fixedly mounted on the top of the fixing frame (83).

4. A high performance filter with shielding function according to claim 3, characterized in that: The inner side walls of the rectangular frame (81) are also fixedly mounted with a filter screen (86) and filter cotton (85), respectively, and the filter cotton (85) is located between the filter screen (86) and the fixing frame (83).

5. The high performance filter with shielding function according to claim 1, characterized in that: L-plates (15) are fixedly mounted at the four corners of the bottom of the base plate (1), and mounting holes (16) are formed through the L-plates (15).

6. The high performance filter with shielding function according to claim 1, characterized in that: A fixing block (9) is fixedly installed on one side of the shielding shell (2), a through hole (10) is penetrated through one side of the fixing block (9), the fixing block (9) and the shielding shell (2) are connected through the through hole (10), a sliding groove (11) is provided inside the through hole (10), a sliding plate (13) is slidably connected inside the sliding groove (11), a semicircular groove is provided at the bottom of the sliding plate (13), two springs (12) are relatively fixedly installed on the top of the sliding plate (13), the top ends of the two springs (12) are fixedly connected to the inner top wall of the sliding groove (11), and semicircular sealing gaskets (17) are bonded to the inside of the through hole (10) and the semicircular groove.

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