A millimeter wave filter

Abstract

The application discloses a millimeter wave filter, and relates to the technical field of filters, which comprises a filter assembly and a positioning assembly; the filter assembly comprises a shell and a connecting line; the positioning assembly comprises a fixing plate, an air bag and a deformation plate; the connecting line is arranged on both sides of the shell; the fixing plate is provided with two fixing plates which are fixed on one side of the shell and are located on the upper and lower sides of the connecting line respectively; the air bag is provided with a plurality of air bags which are uniformly and separately fixed on the side of the two fixing plates which are close to each other; the connecting line can be stored in the shielding space formed by the fixing plate, the risk of being hooked or pulled by external objects in a complex environment is significantly reduced, and the safety of signal processing is improved; the stress generated by vibration is dispersed on the arc lines of each wave, instead of being concentrated on a certain point, so that the reliability and service life of the connection are greatly improved; when the connecting line is axially pulled, the wave-shaped connecting line can be straightened in part, so that the energy is absorbed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter, in particular to a kind of millimeter wave filter. BACKGROUND

[0002] Millimeter wave filter is the electronic filter working in millimeter wave frequency band, plays a key role in wireless communication, radar, satellite communication, imaging and remote sensing, military and national defense and other fields.The core function is to accurately select the signal in a specific frequency range, suppress out-of-band interference and noise, while realizing channel division, signal isolation and eliminating spurious and harmonic, to ensure the purity and stability of communication system.Millimeter wave filter as the key component in wireless communication system, its performance directly affects the stability and quality of signal processing.With the rapid development of wireless communication technology, especially in high-speed data transmission and high-resolution radar applications, the requirements of millimeter wave filter are increasingly stringent.The traditional millimeter wave filter design mainly focuses on the frequency selectivity and insertion loss of filter itself, while in actual application environment, the connection stability of filter and external equipment often becomes an important factor restricting the overall performance of system.

[0003] When millimeter wave filter is installed on the device that needs long-term walking, moving or bearing vibration, such as unmanned aerial vehicle, vehicle-mounted communication system or portable device, the connection line of filter and external equipment is easily affected by vibration, leading to continuous micro-vibration at the connection. This vibration not only reduces the stability of signal processing, but also may cause fatigue fracture of connection line, and further affect the reliability and life of the whole system.

[0004] To solve this problem, although there are some methods in the prior art that fix the connection line by fixing plate to improve stability, but these methods are poor in the face of long-term or strong vibration. The fixing plate clamping method is difficult to adapt to the needs of different specifications of connection line, and in the vibration environment, the clamping point is easy to become a stress concentration point, accelerating the wear and fracture of connection line. In long-term vibration environment, the connection between connection line and fixing plate is easy to produce continuous micro-vibration, which will gradually reduce the effect of signal processing, and even may cause connection loose or signal interruption. SUMMARY

[0005] The embodiment of the present application provides a millimeter wave filter, solves the problem that when the millimeter wave filter is installed on a device that needs to walk, move or bear vibration for a long time, such as a drone, a vehicle-mounted communication system or a portable device, the connection line of the filter and an external device is easily affected by vibration, leading to continuous micro-vibration at the connection position. The vibration not only reduces the stability of signal processing, but also can cause fatigue fracture of the connection line, thereby affecting the reliability and service life of the whole system. The connection line is accommodated in the shielding space formed by the fixed plate, the risk of being hooked or pulled by external objects in a complex environment is significantly reduced, and the safety of signal processing is improved. The stress generated by vibration is dispersed on the arc lines of each wave, instead of being concentrated on a certain point, so that the reliability and service life of the connection are greatly improved. When the connection line is axially pulled, the wave-shaped connection line can be straightened in part, so as to absorb energy and avoid stress acting on the welding point or interface of the filter body. The signal processing of the filter body is avoided.

[0006] The embodiment of the present application provides a millimeter wave filter, which comprises a filter assembly and a positioning assembly.

[0007] The filter assembly comprises a shell and a connection line; the positioning assembly comprises a fixed plate, an air bag and a deformation plate.

[0008] The connection line is arranged on both sides of the shell.

[0009] The fixed plate is provided with two fixed plates arranged on one side of the shell, and the two fixed plates are arranged on the upper and lower sides of the connection line.

[0010] The air bag is provided with a plurality of air bags which are uniformly and separately arranged on the side of the two fixed plates close to each other.

[0011] The width direction of the fixed plate is consistent with the extension direction of the connection line.

[0012] The length direction of the air bag is consistent with the length direction of the fixed plate.

[0013] The air bags on the side of the two fixed plates close to each other are arranged alternately.

[0014] After the air bag is inflated, the air bag abuts against the connection line to form a wave shape.

[0015] The deformation plate is fixed to the end of the upper fixed plate away from the shell.

[0016] The deformation plate is made of deformable iron.

[0017] When the deformation plate is manually bent, the connection line can be bent and shielded to the lower side of the fixed plate.

[0018] As an improvement, the air bag is provided with a gas injection port at one end, and the gas injection port is externally connected to a gas source.

[0019] The air bags on the side of the two fixing plates close to each other are inflated to clamp the connecting line.

[0020] As an improvement, the filter assembly further comprises a fixing lug;

[0021] The fixing lug is fixed symmetrically on the two sides of the shell.

[0022] The fixing lug is used for threaded connection with the fixing bolt, and the position of the fixing device as a whole.

[0023] As an improvement, the filter assembly further comprises a cover plate, a filter screen and a filter body.

[0024] The shell is a cuboid with an open upper end, the filter body is detachably arranged in the shell, and one end of the connecting line is arranged on the side of the filter body through the shell.

[0025] The cover plate is a cuboid through the upper and lower sides, the filter screen is fixed in the cover plate, the cover plate is detachably arranged on the upper side of the shell, and the cover plate is used to block the opening of the shell.

[0026] The cover plate through the upper and lower sides is used for ventilation and heat dissipation of the filter body, and the filter screen is used for dust isolation.

[0027] As an improvement, the positioning assembly further comprises a pulling bag.

[0028] The pulling bag is an annular bag body, the number of the pulling bag is consistent with the number of the fixing plate, and the pulling bag is sleeved on the fixing plate.

[0029] Further comprising an electric sliding table, the number of the electric sliding table is consistent with the number of the pulling bag, and the electric sliding table is one-to-one corresponding.

[0030] The electric sliding table is fixed on the side away from each other of the two fixing plates.

[0031] The sliding block on the electric sliding table is fixed in the inner circle of the pulling bag.

[0032] As an improvement, the two pulling bags arranged in the upper and lower sides are used for clamping the connecting line, and the electric sliding table drives the pulling bag to rotate to make the connecting line inclined.

[0033] As an improvement, the electric sliding table and the pulling bag are located on the side away from the shell of the plurality of air bags.

[0034] One end of the pulling bag is provided with a gas injection port, and the gas injection port is externally connected with a gas source.

[0035] The pulling bags on the two fixing plates on the same side are inflated to clamp the connecting line.

[0036] As an improvement, the length direction of the electric sliding table is parallel to the length direction of the air bag, and the length direction of the electric sliding table is the sliding direction of the sliding block connected with the surface of the electric sliding table.

[0037] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0038] Firstly, the connecting line is accommodated in the shielding space formed by the fixing plate, which significantly reduces the risk of being hooked or pulled by external objects in a complex environment, improves the safety of signal processing, the stress generated by vibration is dispersed on the arc lines of each wave, rather than concentrated on a certain point, which greatly improves the reliability and life of the connection, when the connecting line is axially pulled, the wave-shaped connecting line can be straightened part, thereby absorbing energy, avoiding the stress directly acting on the welding point or interface of the filter body, and avoiding affecting the signal processing of the filter body.

[0039] Secondly, the inclination angle of the connecting line changes, which changes the natural frequency of the vibration mode; this can effectively avoid the main vibration frequency of the outside and prevent the occurrence of resonance phenomenon; the inclination of the connecting line can be fine-tuned in real time by controlling the electric sliding table, so as to realize dynamic vibration suppression and ensure the continuous stability of the signal in the device.

[0040] In the case of too long connecting line, the connecting line can be straightened to avoid most of the connecting line exposed to the outside, leading to the occurrence of overall loosening; and limiting the fixed length of the connecting line, the microphone noise is significantly reduced during signal processing, and the signal purity is improved, so as to ensure the best signal processing effect.

[0041] And the connecting line is inclined, the bending point is dynamically changed, which avoids material fatigue and insulation damage caused by fixed point bending, prolongs the service life of the cable, and ensures the continuous stability of the signal. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 A perspective view of the millimeter wave filter of the present application Figure 1 ;

[0043] Figure 2 A filter body installation schematic diagram of the millimeter wave filter of the present application

[0044] Figure 3 A perspective view of the millimeter wave filter of the present application Figure 2 ;

[0045] Figure 4 A front view of the millimeter wave filter of the present application

[0046] Figure 5 A deformation plate bending state schematic diagram of the millimeter wave filter of the present application

[0047] Figure 6 A pulling capsule installation schematic diagram of the millimeter wave filter of the present application

[0048] Figure 7 Figure is a perspective view of a pulling bag of a millimeter wave filter of the present application;

[0049] Figure 8 Figure is a schematic view of a pulling bag and a motorized sliding table of a millimeter wave filter of the present application;

[0050] Figure 9 Figure is a perspective view of a pulling bag and a motorized sliding table of a millimeter wave filter of the present application.

[0051] In the figure: 100, filter assembly; 110, shell; 120, fixing ear; 130, cover plate; 140, filter screen; 150, filter body; 160, connecting line; 200, positioning assembly; 210, fixing plate; 220, air bag; 230, deformation plate; 240, pulling bag; 300, motorized sliding table. DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the present application are shown; however, the present application can be realized in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0053] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0055] Embodiment one: as shown, the present application is a millimeter wave filter, comprising a filter assembly 100 and a positioning assembly 200; Figures 1-5

[0056] The filter assembly 100 comprises a shell 110, a fixing ear 120, a cover plate 130, a filter screen 140, a filter body 150 and a connecting line 160; the positioning assembly 200 comprises a fixing plate 210, an air bag 220 and a deformation plate 230;

[0057] The connecting line 160 is arranged on both sides of the shell 110;

[0058] ​The two fixing plates 210 are fixed on one side of the shell 110, and the two fixing plates 210 are located on the upper and lower sides of the connecting line 160 respectively.

[0059] Specifically, the two fixing plates 210 are stacked on the upper and lower sides of the connecting line 160, and the upper and lower sides of the connecting line 160 are always attached to the side of the two fixing plates 210 close to each other, thereby improving the fixing effect; after the device is installed, no matter whether the connecting line 160 bends to the left side or the right side, it will not interfere with the fixing plate 210, and the fixing plate 210 will continuously be interfered, which will cause the fixing plate 210 to deform, thereby reducing the contact area between the connecting line 160 and the fixing plate 210 and affecting the fixing effect.

[0060] The plurality of air bags 220 are uniformly and separately fixed on the side of the two fixing plates 210 close to each other.

[0061] The air bags 220 on the side of the two fixing plates 210 close to each other are staggered.

[0062] The width direction of the fixing plate 210 is consistent with the extension direction of the connecting line 160.

[0063] The length direction of the air bag 220 is consistent with the length direction of the fixing plate 210.

[0064] One end of the air bag 220 is provided with a gas injection port, and the gas injection port can be connected to a gas source.

[0065] After the air bags 220 on the side of the two fixing plates 210 close to each other on the same side are inflated, the connecting line 160 is clamped.

[0066] After the air bag 220 is inflated, the connecting line 160 is interfered and presents a wavy shape.

[0067] Specifically, through the inflation of the air bag 220, different models and different specifications of the connecting line 160 can be adapted, and the connecting line 160 can be clamped and limited. In addition, through the interval arrangement of the plurality of air bags 220, after inflation, the connecting line 160 can be interfered, so that the connecting line 160 presents a wavy shape, which can improve the fixing effect of the connecting line 160. During the installation of the device, if the connecting line 160 is pulled, because the connecting line 160 presents a wavy shape, it has a certain buffer length and buffer time, which can avoid loosening of the connecting line 160, and improve the safety of signal processing.

[0068] The deformation plate 230 is fixed at the end of the upper fixing plate 210 away from the shell 110.

[0069] The deformation plate 230 is made of deformable iron.

[0070] When the deformation plate 230 is manually bent, the connecting line 160 can be bent and shielded below the fixing plate 210.

[0071] Specifically, the deformation plate 230 can be manually bent to be downward and inward, and the connecting line 160 between the two fixed plates 210 can also be bent downward and inward, so that the connecting line 160 is located below the fixed plate 210 and is shielded, and it is not easy to be pulled or hooked by external objects, the exposed part is reduced, and the possibility of external physical interference is reduced.

[0072] The fixed lug 120 is symmetrical and fixed on both sides of the shell 110.

[0073] Specifically, the fixed lug 120 is used for threaded connection with the fixed bolt, and the position of the entire fixed device.

[0074] The shell 110 is a rectangular parallelepiped with an open upper end, the filter body 150 is detachably arranged in the shell 110, and one end of the connecting line 160 passes through the shell 110 and is arranged on the side of the filter body 150.

[0075] The cover plate 130 is a rectangular parallelepiped with an upper and lower through hole, the filter screen 140 is fixed in the cover plate 130, the cover plate 130 is detachably arranged on the upper side of the shell 110, and the cover plate 130 is used to block the opening of the shell 110.

[0076] The cover plate 130 is a rectangular parallelepiped with an upper and lower through hole, the filter screen 140 is fixed in the cover plate 130, the cover plate 130 is detachably arranged on the upper side of the shell 110, and the cover plate 130 is used to block the opening of the shell 110.

[0077] Specifically, the filter body 150 is installed in the shell 110, and the filter screen 140 is used for heat dissipation and dust isolation, so as to avoid affecting the work of the filter body 150.

[0078] The technical solutions in the above embodiments of the application have at least the following technical effects or advantages:

[0079] The connecting line 160 is accommodated in the shielding space formed by the fixed plate 210, which significantly reduces the risk of being hooked or pulled by external objects in a complex environment, improves the safety of signal processing, the stress generated by vibration is dispersed on the arc lines of each wave, rather than concentrated on a certain point, which greatly improves the reliability and life of the connection, when the connecting line 160 is axially pulled, the wave-shaped connecting line 160 can be straightened part, thereby absorbing energy, avoiding the stress directly acting on the welding point or interface of the filter body 150, and avoiding affecting the signal processing of the filter body 150.

[0080] In use of the above embodiment, the connection line 160 is waved by the inflation of the air bag 220. However, if the remaining length of the connection line 160 is too long, the connection line 160 not clamped will also vibrate when the whole device vibrates, resulting in a lower signal processing effect of the filter body 150. Therefore, the embodiment one is improved as shown in Figures 6-9

[0081] The positioning assembly 200 further comprises a pulling bag 240.

[0082] The pulling bag 240 is a ring-shaped bag body, and the number of the pulling bag 240 is consistent with the number of the fixed plate 210 and one-to-one corresponding. The pulling bag 240 is sleeved on the fixed plate 210.

[0083] Further comprising an electric sliding table 300, the number of the electric sliding table 300 is consistent with the number of the pulling bag 240 and one-to-one corresponding.

[0084] The length direction of the electric sliding table 300 is parallel to the length direction of the air bag 220, and the length direction of the electric sliding table 300 is the sliding direction of the sliding block on the surface thereof.

[0085] The electric sliding table 300 is fixed on the side of the two fixed plates 210 away from each other.

[0086] The electric sliding table 300 and the pulling bag 240 are located on the side of the plurality of air bags 220 away from the shell 110.

[0087] The sliding block on the electric sliding table 300 is fixed in the inner circle of the pulling bag 240.

[0088] The two pulling bags 240 arranged above and below are used to clamp the connection line 160, and the electric sliding table 300 drives the pulling bag 240 to rotate, so that the connection line 160 is inclined.

[0089] One end of the pulling bag 240 is provided with a gas injection port, and the gas injection port can be connected with a gas source.

[0090] After the pulling bag 240 on the same side of the two fixed plates 210 is inflated, the connection line 160 is clamped.

[0091] Specifically, the two pulling bags 240 arranged above and below can clamp the connection line 160 after inflation, and the pulling bag 240 is driven to rotate by the working of the electric sliding table 300. In the process of rotation, the clamped connection line 160 is pulled to move in position, and the connection line 160 is changed from the original straight line to the inclined arrangement between the upper and lower fixed plates 210.

[0092] And the inclined connection line 160 can accommodate more length, and in the case of too long length, most of the connection line 160 is avoided to be exposed outside.​

[0093] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0094] The inclination angle of the connecting line 160 changes, which changes the natural frequency of the vibration mode thereof; this can effectively avoid the main vibration frequency of the outside and prevent the occurrence of resonance phenomenon; the inclination of the connecting line 160 can be fine-tuned in real time by controlling the electric sliding table 300, dynamic vibration suppression is realized, and the continuous stability of the signal in the device is ensured;

[0095] In the case that the length of the connecting line 160 is too long, the connecting line 160 can be straightened, most of the connecting line 160 is avoided to be exposed outside, the occurrence of overall loosening caused by vibration is avoided, and the connecting line 160 with a fixed length is limited; during signal processing, the microphone noise is significantly reduced, the signal purity is improved, and the best signal processing effect can be ensured.

[0096] The connecting line 160 is inclined, the bending point is dynamically changed, material fatigue and insulation damage caused by the fixed point bending are avoided, the cable life is prolonged, and the continuous stability of the signal is ensured.

[0097] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A millimeter-wave filter, characterized in that, Includes a filter assembly (100) and a positioning assembly (200); The filter assembly (100) includes a housing (110) and a connecting line (160); the positioning assembly (200) includes a fixing plate (210), an airbag (220), and a deformation plate (230). The connecting wire (160) is provided on both sides of the housing (110); There are two fixing plates (210), which are fixed on one side of the housing (110). The two fixing plates (210) are located on the upper and lower sides of the connecting line (160), respectively. There are multiple airbags (220), which are evenly spaced and fixed on the side of the two fixing plates (210) that are close to each other; The width direction of the fixing plate (210) is consistent with the extension direction of the connecting line (160); The length direction of the airbag (220) is consistent with the length direction of the fixing plate (210); Two fixed plates (210) are arranged with airbags (220) on one side of each other in an alternating manner; After the airbag (220) inflates, the contact line (160) becomes wavy; The deformation plate (230) is fixed to the end of the upper fixing plate (210) away from the shell (110); The deformable plate (230) is made of deformable iron. When manually bending the deformable plate (230), the connecting line (160) can be bent and covered below the fixed plate (210).

2. A millimeter-wave filter as described in claim 1, characterized in that, One end of the airbag (220) has an air inlet, which can be connected to an external air source; After the airbag (220) on one side of the two fixing plates (210) are inflated and expanded, it clamps the connecting line (160).

3. A millimeter-wave filter as described in claim 1, characterized in that, The filter assembly (100) also includes a mounting ear (120); There are two fixing ears (120), which are symmetrically fixed on both sides of the housing (110); The fixing lug (120) is used to connect with the fixing bolt by thread to fix the position of the whole device.

4. A millimeter-wave filter as described in claim 3, characterized in that, The filter assembly (100) also includes a cover plate (130), a filter screen (140), and a filter body (150). The housing (110) is a cuboid with an opening at the top. The filter body (150) is detachably installed inside the housing (110). One end of the connecting wire (160) passes through the housing (110) and is installed on the side of the filter body (150). The cover plate (130) is a rectangular parallelepiped that runs vertically through the top and bottom. The filter screen (140) is fixed inside the cover plate (130). The cover plate (130) is detachably mounted on the upper side of the housing (110). The cover plate (130) is used to block the opening of the housing (110). The through-hole cover (130) provides ventilation and heat dissipation for the filter body (150), and the filter screen (140) is used to isolate dust.

5. A millimeter-wave filter as described in claim 1, characterized in that, The positioning component (200) also includes a traction bladder (240); The traction bladder (240) is an annular bladder. The number of traction bladders (240) is the same as the number of fixing plates (210), and they correspond one-to-one. The traction bladders (240) are fitted onto the fixing plates (210). It also includes an electric slide (300), the number of which is the same as the number of the traction bag (240), and they correspond one-to-one; The electric slide (300) is fixed on one side of the two fixed plates (210) that are far apart from each other; The slider on the electric slide (300) is fixed to the inner ring of the traction bladder (240).

6. A millimeter-wave filter as described in claim 5, characterized in that, Two pull-out pouches (240) are set at the top and bottom to hold the connecting line (160). The electric slide (300) drives the pull-out pouches (240) to rotate, causing the connecting line (160) to tilt.

7. A millimeter-wave filter as described in claim 6, characterized in that, The electric slide (300) and the pulling bladder (240) are both located on the side of the multiple airbags (220) away from the housing (110); One end of the pull-out bag (240) has an air inlet, which can be connected to an external air source; After the tension bladders (240) on the two fixing plates (210) on the same side are inflated, they clamp the connecting line (160).

8. A millimeter-wave filter as described in claim 7, characterized in that, The length direction of the electric slide (300) is parallel to the length direction of the airbag (220), and the length direction of the electric slide (300) is the sliding direction of the sliding block connected to its surface.

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