Filter structure with high shielding performance

Abstract

The utility model discloses a filter structure with high shielding performance, which belongs to the technical field of filters, and comprises a filter body, the outer end of the filter body is provided with an air outlet groove communicated with the filter body, and the inner wall of the air outlet groove is fixedly connected with a first sieve plate. A heat dissipation assembly is arranged at the outer end of the filter body, a material scraping assembly is arranged in the heat dissipation assembly, external air is sucked in through rotation of a fan and enters the filter body, flowing of air in the filter body is accelerated, air flow is formed, and after the air flow enters the filter body, heat transfer with the air in the filter body is achieved through convective heat transfer; the heat of the filter body is taken away and discharged through the air outlet groove, the purpose of cooling the interior of the filter body is achieved, the risk that components in the filter are overheated due to temperature rise, and aging of the components is accelerated is reduced, and therefore the service life of the filter is prolonged.

Description

Technical Field

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

[0002] Filters with high shielding performance have important applications in communication systems. They are mainly used to solve the mutual interference problem between signals of different frequencies. Such filters allow signals that meet specific frequencies to pass through and suppress signals of other frequencies. Filters with high shielding performance will generate heat when working. Adding heat dissipation devices can effectively improve the working efficiency and stability of filters with high shielding performance, reduce the failure rate and extend the service life.

[0003] China Patent Authorization Announcement No.: CN212324076U provides a high shielding performance signal filter, which adds shielding sponge, connecting column, expansion sleeve, and connecting hole. The design can fill the gap between the shielding plate and the opening, thereby improving the signal shielding effect. By installing multiple sets of spring holsters and signal line connecting holes on the outside of the signal filter housing and the surface of the mounting plate, multiple sets of signal shielding devices can be connected, thereby solving the problem of incomplete signal shielding at the opening and poor shielding effect in the prior art.

[0004] However, the signal filter in the above scheme will generate heat during operation, causing the temperature inside the signal filter housing to rise. The scheme does not deal with the increase in temperature inside the signal filter housing. The temperature increase will cause the internal components of the filter to overheat, thereby accelerating the aging of the components and further reducing the service life of the filter. Therefore, a filter structure with high shielding performance is proposed to address the above problem. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a filter structure with high shielding performance, which draws in the outside wind through the rotation of the fan and enters the inside of the filter body, accelerates the flow of air in the filter body and forms a wind flow. When the wind flow enters the filter body, it transfers heat with the air inside it through convection, takes away the heat of the filter body and discharges it through the air outlet slots, thereby achieving the purpose of heat dissipation inside the filter body, reducing the risk of overheating of internal components of the filter due to temperature increase and accelerating aging of the components, thereby extending the service life of the filter.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A filter structure with high shielding performance comprises a filter body, an outer end of the filter body is provided with an air outlet slot connected thereto, an inner wall of the air outlet slot is fixedly connected with a first sieve plate, a heat dissipation component is provided at the outer end of the filter body, and a scraper component is provided inside the heat dissipation component;

[0010] The heat dissipation assembly includes an L-shaped block fixedly connected to the outer end of the filter body, an L-shaped groove is provided inside the L-shaped block, the L-shaped groove is connected to the interior of the filter body, a pair of sliding grooves are provided on the inner wall of the L-shaped groove, a vertical plate is fixedly connected to the inner wall of the L-shaped groove, and a motor is fixedly connected to the outer end of the vertical plate.

[0011] Furthermore, the output end of the motor passes through the vertical plate and extends to the inside of the L-shaped groove, the output end of the motor is rotatably connected to the inner wall of the L-shaped groove, and the output end of the motor is fixedly connected to a fan.

[0012] Furthermore, the output end of the motor is fixedly connected to a first bevel gear, and the first bevel gear is located on one side of the fan.

[0013] Furthermore, the scraper assembly includes a second bevel gear meshing with the first bevel gear and a second screen plate, the second screen plate is fixedly connected to the inner wall of the L-shaped groove, the outer end of the second bevel gear is fixedly connected to a reciprocating screw, and the reciprocating screw passes through the second screen plate and is rotatably connected thereto.

[0014] Furthermore, the outer sleeve of the reciprocating screw rod is provided with a slider, the outer end of the slider is rotatably connected to a pair of connecting rods, the pair of connecting rods are symmetrically arranged, the outer ends of the connecting rods are fixedly connected to scraper plates, both ends of the scraper plates are fixedly connected to rectangular blocks, the rectangular blocks are slidably connected to the slide groove, and the scraper plate abuts against the second screen plate.

[0015] Furthermore, a discharge trough connected thereto is provided at the bottom end of the L-shaped trough, and the discharge trough is located below the scraper plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution draws in outside wind through the rotation of the fan and then draws it into the filter body, accelerating the flow of air in the filter body to form a wind flow. When the wind flow enters the filter body, it transfers heat with the air inside it through convection, takes away the heat of the filter body and discharges it through the air outlet slot, thereby achieving the purpose of heat dissipation inside the filter body and reducing the risk of overheating of the internal components of the filter due to temperature increase and accelerating the aging of the components, thereby extending the service life of the filter.

[0019] (2) In this solution, while the fan is rotating, the second bevel gear, the reciprocating screw and the slider are used in coordination to make a pair of scraper plates move toward or away from each other, thereby achieving the purpose of scraping dust off the surface of the second screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the exploded structure of the heat dissipation component of the utility model;

[0023] Figure 4 It is a schematic diagram of the exploded structure of the scraper assembly of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Filter body; 2. Heat dissipation assembly; 21. L-shaped block; 22. L-shaped groove; 23. Motor; 24. Vertical plate; 25. Fan; 26. First bevel gear; 3. Scraper assembly; 31. Second bevel gear; 32. Reciprocating screw rod; 33. Sliding block; 34. Connecting rod; 35. Scraper plate; 36. Second sieve plate; 4. First sieve plate; 5. Discharge trough; 6. Air outlet trough. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Example:

[0030] See also Figure 1-4 A filter structure with high shielding performance includes a filter body 1, an outer end of the filter body 1 is provided with an air outlet slot 6 connected thereto, an inner wall of the air outlet slot 6 is fixedly connected with a first sieve plate 4, a heat dissipation component 2 is provided at the outer end of the filter body 1, and a scraper component 3 is provided inside the heat dissipation component 2;

[0031] The heat dissipation assembly 2 includes an L-shaped block 21 fixedly connected to the outer end of the filter body 1, an L-shaped groove 22 is provided inside the L-shaped block 21, the L-shaped groove 22 is connected to the interior of the filter body 1, a pair of sliding grooves are provided on the inner wall of the L-shaped groove 22, a vertical plate 24 is fixedly connected to the inner wall of the L-shaped groove 22, and a motor 23 is fixedly connected to the outer end of the vertical plate 24.

[0032] The main purpose of the filter in this scheme is to filter signals, mainly to separate a single frequency component from complex frequency components, or to filter out frequency components of no interest, so as to improve the analysis accuracy of circuit equipment. The heat in the filter body 1 will diffuse to the outside through the air outlet slot 6, and the first sieve plate 4 is used to prevent external dust from entering the interior of the filter body 1.

[0033] See also Figure 3-4 The output end of the motor 23 passes through the vertical plate 24 and extends to the inside of the L-shaped groove 22 . The output end of the motor 23 is rotatably connected to the inner wall of the L-shaped groove 22 . The output end of the motor 23 is fixedly connected to the fan 25 .

[0034] In this solution, when it is necessary to dissipate heat inside the filter body 1, the motor 23 drives the fan 25 to rotate, sucking in the outside wind and entering the filter body 1 through the L-shaped groove 22, accelerating the flow of air in the filter body 1 and forming a wind flow. After the wind flow enters the filter body 1, it transfers heat with the air inside it through convection, takes away the heat of the filter body 1 and discharges it through the air outlet groove 6, thereby achieving the purpose of dissipating heat inside the filter body 1.

[0035] See also Figure 4The output end of the motor 23 is fixedly connected to a first bevel gear 26 , and the first bevel gear 26 is located on one side of the fan 25 .

[0036] See also Figure 4 The scraper assembly 3 includes a second bevel gear 31 meshing with the first bevel gear 26 and a second screen plate 36. The second screen plate 36 is fixedly connected to the inner wall of the L-shaped groove 22. The outer end of the second bevel gear 31 is fixedly connected to a reciprocating screw rod 32, which passes through the second screen plate 36 and is rotatably connected thereto.

[0037] In this solution, when the motor 23 drives the fan 25 to rotate, the first bevel gear 26 will also rotate. Since the second bevel gear 31 is engaged with the first bevel gear 26, the second bevel gear 31 will also rotate. The reciprocating screw 32 will rotate under the action of the second bevel gear 31, so that the slider 33 mounted on the reciprocating screw 32 reciprocates in the horizontal direction.

[0038] See also Figure 4 The outer sleeve of the reciprocating screw rod 32 is provided with a slider 33, and the outer end of the slider 33 is rotatably connected to a pair of connecting rods 34, and the pair of connecting rods 34 are symmetrically arranged. The outer ends of the connecting rods 34 are fixedly connected to scraper plates 35, and both ends of the scraper plates 35 are fixedly connected to rectangular blocks, which are slidably connected to the slide grooves, and the scraper plates 35 abut against the second screen plate 36.

[0039] In this scheme, the outer end of the scraper plate 35 is fixedly connected to a hard bristle brush. When the slider 33 moves close to the second screen plate 36 under the action of the reciprocating screw 32, the slider 33 will cause the pair of scraper plates 35 to move away from each other through the action of a pair of connecting rods 34. When the slider 33 moves away from the second screen plate 36 under the action of the reciprocating screw 32, the slider 33 will cause the pair of scraper plates 35 to move close to each other through the action of a pair of connecting rods 34. By moving the pair of scraper plates 35 close to or away from each other, the purpose of scraping dust on the surface of the second screen plate 36 is achieved.

[0040] See also Figure 3-4 The bottom end of the L-shaped groove 22 is provided with a discharge groove 5 connected thereto, and the discharge groove 5 is located below the scraper plate 35.

[0041] In this solution, after the dust is scraped off the surface of the second sieve plate 36 , the dust is discharged to the outside through the discharge chute 5 under the action of gravity.

[0042] Working principle: when it is necessary to dissipate heat inside the filter body 1, the motor 23 drives the fan 25 to rotate, sucks in the outside wind, and enters the filter body 1 through the L-shaped groove 22, accelerates the flow of air in the filter body 1, and forms a wind flow. When the wind flow enters the filter body 1, it transfers heat with the air inside it through convection, takes away the heat of the filter body 1 and discharges it through the air outlet groove 6, thereby achieving the purpose of dissipating heat inside the filter body 1. When the motor 23 drives the fan 25 to rotate, the first bevel gear 26 will also rotate. Since the second bevel gear 31 is meshed with the first bevel gear 26, the second bevel gear 31 will also rotate. The reciprocating screw 32 will rotate under the action of the second bevel gear 31, so that the slider 33 mounted on the reciprocating screw 32 reciprocates in the horizontal direction, and through the connecting rod 34, a pair of scraper plates 35 move closer to or away from each other, thereby achieving the purpose of scraping dust on the surface of the second screen plate 36.

[0043] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A filter structure with high shielding performance, comprising a filter body (1), characterized in that: The outer end of the filter body (1) is provided with an air outlet slot (6) which is in communication therewith, the inner wall of the air outlet slot (6) is fixedly connected with a first sieve plate (4), the outer end of the filter body (1) is provided with a heat dissipation component (2), and the interior of the heat dissipation component (2) is provided with a scraper component (3); The heat dissipation assembly (2) comprises an L-shaped block (21) fixedly connected to the outer end of the filter body (1); an L-shaped groove (22) is provided inside the L-shaped block (21); the L-shaped groove (22) is connected to the inside of the filter body (1); a pair of sliding grooves are provided on the inner wall of the L-shaped groove (22); a vertical plate (24) is fixedly connected to the inner wall of the L-shaped groove (22); and a motor (23) is fixedly connected to the outer end of the vertical plate (24).

2. A filter structure with high shielding performance according to claim 1, characterized in that: The output end of the motor (23) passes through the vertical plate (24) and extends to the inside of the L-shaped groove (22); the output end of the motor (23) is rotatably connected to the inner wall of the L-shaped groove (22); and the output end of the motor (23) is fixedly connected to a fan (25).

3. A filter structure with high shielding performance according to claim 2, characterized in that: The output end of the motor (23) is fixedly connected to a first bevel gear (26), and the first bevel gear (26) is located on one side of the fan (25).

4. A filter structure with high shielding performance according to claim 1, characterized in that: The scraper assembly (3) comprises a second bevel gear (31) meshing with the first bevel gear (26) and a second screen plate (36); the second screen plate (36) is fixedly connected to the inner wall of the L-shaped groove (22); the outer end of the second bevel gear (31) is fixedly connected to a reciprocating screw (32); the reciprocating screw (32) passes through the second screen plate (36) and is rotatably connected thereto.

5. A filter structure with high shielding performance according to claim 4, characterized in that: The outer sleeve of the reciprocating screw rod (32) is provided with a slider (33), the outer end of the slider (33) is rotatably connected to a pair of connecting rods (34), the pair of connecting rods (34) are symmetrically arranged, the outer ends of the connecting rods (34) are fixedly connected to a scraper plate (35), both ends of the scraper plate (35) are fixedly connected to rectangular blocks, the rectangular blocks are slidably connected to the slide groove, and the scraper plate (35) is in contact with the second screen plate (36).

6. A filter structure with high shielding performance according to claim 1, characterized in that: A discharge chute (5) communicating with the L-shaped groove (22) is provided at the bottom end thereof, and the discharge chute (5) is located below the scraper plate (35).

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