A simplified design structure of multiple cavities in a single channel of a band-stop filter

Abstract

The present invention discloses a simplified design structure of multiple single cavities in a single channel of a band-stop filter, which belongs to the technical field of filters. The simplified design structure of multiple single cavities in a single channel of a band-stop filter comprises a cover plate, the lower side of the cover plate is detachably connected to a cavity, the front side of the right end of the cavity is connected to an auxiliary output connector, the auxiliary output connector is detachably connected by an auxiliary output connector fixing screw, the right end of the cavity is connected to an auxiliary input connector, the auxiliary input connector is located on the rear side of the auxiliary output connector, the auxiliary input connector is detachably connected by an auxiliary input connector fixing screw, the external convex heads of the auxiliary input connector and the auxiliary output connector are sleeved with an external cable assembly, the external cable assembly comprises a connecting rod, an external input connector and an external output connector. The present invention solves the problems of design and debugging difficulties caused by multiple single cavities in a single channel of a band-stop filter, has low processing cost, and flexible adjustment of the resistance range.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a simplified design structure of multiple cavities in a single channel of a band-stop filter. Background Art

[0002] A filter is a device or circuit that processes signals. Its main function is to allow useful signals to pass through with minimal attenuation and to attenuate useless signals as much as possible. Filters are widely used in various electronic devices to remove noise during signal transmission, improving the performance of electronic devices. For example, filters can be installed on cables to filter the signals transmitted by the cables, so that the cables only transmit signals in a specific frequency band, thereby making the electronic devices connected to the cables more stable. For another example, when using a probe to measure electronic devices, filters can be used to filter the signals transmitted by the probe, allowing the tester to measure and analyze signals in a specific frequency band.

[0003] In the existing technology, a band-stop filter refers to a filter that can pass most frequency components but attenuate frequency components in a certain range to an extremely low level. In contrast to the concept of a band-pass filter, a point-stop filter is a special band-stop filter with an extremely small stopband range and a very high Q value. Therefore, in actual application scenarios, band-stop filters are often used to meet and achieve customer requirements. In some designs, due to the requirements of the indicators, many single cavities are required in a single channel to meet the indicator requirements. In this case, the design and debugging processes are very challenging, and the design and debugging are difficult and time-consuming. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the resistance adjustment range of the band-stop filter is small, it is difficult to adjust and it takes a long time, and to propose a simplified design structure of multiple single cavities in a single channel of the band-stop filter.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a simplified design structure of multiple cavities in a single channel of a band-stop filter, comprising:

[0006] A cover plate, the lower side of the cover plate is detachably connected to a cavity, the front side of the right end of the cavity is connected to an auxiliary output connector, the auxiliary output connector is detachably connected by an auxiliary output connector fixing screw, the right end of the cavity is connected to an auxiliary input connector, the auxiliary input connector is located on the rear side of the auxiliary output connector, the auxiliary input connector is detachably connected by an auxiliary input connector fixing screw, the external convex heads of the auxiliary input connector and the auxiliary output connector are sleeved with an external cable assembly, the external cable assembly includes a connecting rod, an external input connector and an external output connector, the external input connector is sleeved with an external input connector, the external output connector is sleeved with an external output connector, and the external input connector and the external output connector are connected in series through a connecting rod.

[0007] Preferably, an output connector is connected to the front side of the left end of the cavity, and the output connector is detachably connected by an output connector fixing screw. An input connector is connected to the left end of the cavity, and the input connector is located on the rear side of the output connector, and the input connector is detachably connected by an input connector fixing screw.

[0008] Preferably, there are four output connector fixing screws, which are used to fix the four corners of the fixing part of the output connector, and four input connector fixing screws are used to fix the four corners of the fixing part of the input connector.

[0009] Preferably, an input rod is provided at one end of the input connector inserted into the cavity, an output rod is provided at one end of the output connector inserted into the cavity, an auxiliary input rod is provided at one end of the auxiliary input connector inserted into the cavity, and an auxiliary output rod is provided at one end of the auxiliary output connector inserted into the cavity.

[0010] Preferably, a transmission copper sheet is provided in the cavity, and there are 5 transmission copper sheets. One end of the transmission copper sheet is connected to the input rod and the other end is connected to the auxiliary input rod. Another transmission copper sheet has one end connected to the output rod and the other end connected to the auxiliary output rod.

[0011] Preferably, the two transmission copper sheets are fixedly connected by transmission copper sheet fixing screws, and there are four transmission copper sheet fixing screws in total.

[0012] Preferably, there are four fixing screws for the auxiliary input connector, which are fixed at the four corners of the fixing part of the auxiliary input connector; and there are four fixing screws for the auxiliary output connector, which are fixed at the four corners of the fixing part of the auxiliary output connector.

[0013] Preferably, cover plate fixing screws are provided on the cover plate, and the cover plate fixing screws realize the detachable connection between the cavity and the cover plate. There are 55 cover plate fixing screws in total, and the 55 cover plate fixing screws are evenly distributed on the cover plate.

[0014] Preferably, the cover plate is provided with tuning screws, and there are 6 tuning screws in total. The 6 tuning screws are evenly distributed on the cover plate and inserted into the cavity.

[0015] Preferably, a baffle is fixedly connected to the cavity, and there are 4 baffles in total. The 4 baffles and the cavity form 6 separation spaces, and tuning studs are provided in the 6 separation spaces. The tuning studs are fixedly connected to the cavity, and tuning screw holes are provided on the tuning studs, and tuning screws are inserted into the tuning screw holes.

[0016] Compared with the prior art, the present invention provides a simplified design structure of multiple cavities in a single channel of a band-stop filter, which has the following beneficial effects:

[0017] 1. The simplified design structure of multiple single cavities in a single channel of the band-stop filter solves the problem of difficult design and debugging caused by multiple single cavities in a single channel of the band-stop filter. It has low processing cost, low assembly error, easy implementation, and flexible resistance range adjustment;

[0018] 2. The simplified design structure of multiple cavities in a single channel of the band-stop filter is achieved by splitting the single-channel band-stop filter into two or more channels. Two auxiliary connectors are added for each additional channel, and then the single channel is designed and debugged. After that, an external 50-ohm matching cable is connected to increase the debugging range of the design of multiple cavities in a single channel of the band-stop filter. This structure is easy to design and debug, and the product indicators are relatively easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a simplified design structure of multiple cavities in a single channel of a band-stop filter proposed by the present invention;

[0020] Figure 2 This is a front view of a simplified design structure of multiple cavities in a single channel of a band-stop filter proposed by the present invention;

[0021] Figure 3 A top view of a simplified design structure of multiple cavities in a single channel of a band-stop filter proposed by the present invention;

[0022] Figure 4 This is a right side view of a simplified design structure of multiple cavities in a single channel of a band-stop filter proposed by the present invention;

[0023] Figure 5This is a schematic diagram of a three-dimensional structure without a cover, which is a simplified design structure of multiple cavities in a single channel of a band-stop filter proposed by the present invention;

[0024] Figure 6 This is a top view without the cover of a simplified design structure of a band-stop filter with multiple cavities in a single channel proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of a uncovered three-dimensional structure portion A of a simplified design structure of a band-stop filter with multiple cavities in a single channel proposed by the present invention;

[0026] Figure 8 This is a right view of a simplified design structure of a band-stop filter with multiple cavities in a single channel proposed by the present invention, with the cover and components removed.

[0027] In the figure: 1. Cavity; 2. Cover; 3. Cover fixing screw; 4. Tuning screw; 5. Input connector fixing screw; 6. Input connector; 7. Output connector fixing screw; 8. Output connector; 9. Auxiliary input connector; 10. Auxiliary input connector fixing screw; 11. Auxiliary output connector; 12. Auxiliary output connector fixing screw; 13. Transmission copper sheet; 14. Transmission copper sheet fixing screw; 15. External cable assembly; 151. Connecting rod; 152. External input connector; 153. External output connector; 16. Tuning stud; 17. Tuning screw hole; 18. Baffle; 19. Input rod; 20. Output rod; 21. Auxiliary input rod; 22. Auxiliary output rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] Example: Refer to Figure 1-8A simplified design structure of multiple single cavities in a single channel of a band-stop filter includes: a cover plate 2, the lower side of the cover plate 2 is detachably connected to the cavity 1, and the detachable connection method is convenient and flexible during assembly and maintenance. The front side of the right end of the cavity 1 is connected to an auxiliary output connector 11, and the auxiliary output connector 11 is detachably connected through the auxiliary output connector fixing screw 12. The screw is used to fix the auxiliary output connector 11, so that the auxiliary output connector 11 is detachable and easy to repair and replace. The right end of the cavity 1 is connected to an auxiliary input connector 9, which is located at the rear side of the auxiliary output connector 11. The auxiliary input connector 9 is detachably connected through the auxiliary input connector fixing screw 10. The screw is used to fix the auxiliary input The connector 9 is flexible to disassemble and easy to repair and replace. The external convex heads of the auxiliary input connector 9 and the auxiliary output connector 11 are sleeved with an external cable assembly 15. The external cable assembly 15 includes a connecting rod 151, an external input connector 152, and an external output connector 153. The external input connector 152 is sleeved on the outside of the auxiliary input connector 9, and the external output connector 153 is sleeved on the outside of the auxiliary output connector 11. The external input connector 152 and the external output connector 153 are connected in series through the connecting rod 151. The external cable assembly 15 increases the design and debugging range of the multi-cavity band-stop filter in a single channel, solving the problem of difficult design and debugging caused by multiple single cavities in a single channel of the band-stop filter.

[0031] The front side of the left end of the cavity 1 is connected to an output connector 8, which is detachably connected by an output connector fixing screw 7. The screws are used to fix the output connector 8, so that the output connector 8 can be detached and flexibly removed, which is convenient for maintenance and replacement. The left end of the cavity 1 is connected to an input connector 6, which is located on the rear side of the output connector 8. The input connector 6 is detachably connected by an input connector fixing screw 5. The screws are used to fix the input connector 6, so that the input connector 6 can be detachably removed and flexibly removed, which is convenient for maintenance and replacement. There are 4 output connector fixing screws 7, which fix the output connector 8 at four corners of the fixing part, and all four corners are fixed, thereby ensuring the stability of the connector and reducing the risk of poor signal contact due to loose screws. There are 4 input connector fixing screws 5, which fix the input connector 6 at four corners of the fixing part, thereby ensuring the stability of the connector and reducing the risk of poor signal contact due to loose screws.

[0032] One end of the input connector 6 inserted into the cavity 1 is provided with an input rod 19, and the input rod 19 and the input connector 6 are connected in a snap-fit manner. One end of the output connector 8 inserted into the cavity 1 is provided with an output rod 20, and the output rod 20 and the output connector 8 are connected in a snap-fit manner. One end of the auxiliary input connector 9 inserted into the cavity 1 is provided with an auxiliary input rod 21, and the auxiliary input rod 21 and the auxiliary input connector 9 are connected in a snap-fit manner. One end of the auxiliary output connector 11 inserted into the cavity 1 is provided with an auxiliary output rod 22, and the auxiliary output rod 22 and the auxiliary output connector 11 are connected in a snap-fit manner. A transmission copper sheet 13 is provided in the cavity 1, and there are two transmission copper sheets 13. One end of the transmission copper sheet 13 is connected to the input rod 19, and the other end is connected to the auxiliary input rod 21 to form a multi-way input structure. One end of the other transmission copper sheet 13 is connected to the output rod 20, and the other end is connected to the auxiliary output rod 22 to form a multi-way output structure. The transmission copper sheet 13 and the connecting rod are connected by welding to prevent poor contact caused by loose connections;

[0033] The two transmission copper sheets 13 are fixedly connected by transmission copper sheet fixing screws 14. There are 4 transmission copper sheet fixing screws 14 in total, which are fixed in the cavity 1. There are 4 auxiliary input connector fixing screws 10. The 4 auxiliary input connector fixing screws 10 fix the four corners of the fixing part of the auxiliary input connector 9. The four corners are all fixed, which ensures the stability of the connector and reduces the risk of poor signal contact due to loose screws. There are 4 auxiliary output connector fixing screws 12. The 4 auxiliary output connector fixing screws 12 fix the four corners of the fixing part of the auxiliary output connector 11. The four corners are all fixed, which ensures the stability of the connector and reduces the risk of poor signal contact due to loose screws. Cover plate fixing screws 3 are provided on the cover plate 2. The cover plate fixing screws 3 realize the detachable connection between the cavity 1 and the cover plate 2. There are 55 cover plate fixing screws 3 in total. The 55 cover plate fixing screws 3 are evenly distributed on the cover plate 2. The cover plate fixing screws 3 are evenly distributed, which ensures the stability of the cover plate.

[0034] The cover plate 2 is provided with a tuning screw 4 for adjusting the resonant frequency of the signal. There are 6 tuning screws 4, which are evenly distributed on the cover plate 2 and inserted into the cavity 1. A baffle 18 is fixedly connected to the cavity 1. There are 4 baffles 18 in total, which are used to cut the space of the cavity 1 to form 6 single cavities. The 4 baffles 18 and the cavity 1 form 6 separated spaces. A tuning stud 16 is provided in each of the 6 separated spaces. The tuning stud 16 is fixedly connected to the cavity 1. A tuning screw hole 17 is provided on the tuning stud 16. The tuning screw hole 17 is inserted into the tuning screw 4 to adjust the signal.

[0035] In the present invention, by splitting a single-channel band-stop filter into two or more channels, two auxiliary connectors are added for each additional channel, and then the single channel is designed and debugged, and then an external cable assembly 15 is used to increase the design and debugging range of multiple cavities in a single channel of the band-stop filter, thereby solving the problem of difficulty in design and debugging caused by multiple cavities in a single channel of the band-stop filter. This structure has low processing cost, low assembly error, is easy to design and debug, and is relatively easy to control product indicators.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A simplified design structure of multiple cavities in a single channel of a band-stop filter, characterized in that: include: A cover plate (2) is provided, wherein the lower side of the cover plate (2) is detachably connected to a cavity (1), the front side of the right end of the cavity (1) is connected to an auxiliary output connector (11), the auxiliary output connector (11) is detachably connected via an auxiliary output connector fixing screw (12), the right end of the cavity (1) is connected to an auxiliary input connector (9), the auxiliary input connector (9) is located at the rear side of the auxiliary output connector (11), the auxiliary input connector (9) is detachably connected via an auxiliary input connector fixing screw (10), and the auxiliary input connector (9) is detachably connected via an auxiliary input connector fixing screw (10). The external convex heads of the head (9) and the auxiliary output connector (11) are sleeved with an external cable assembly (15), the external cable assembly (15) comprising a connecting rod (151), an external input connector (152) and an external output connector (153), the external input connector (152) is sleeved on the external side of the auxiliary input connector (9), the external output connector (153) is sleeved on the external side of the auxiliary output connector (11), and the external input connector (152) and the external output connector (153) are connected in series via the connecting rod (151); The left front end of the cavity (1) is connected to an output connector (8), and the output connector (8) is detachably connected via an output connector fixing screw (7). The left end of the cavity (1) is connected to an input connector (6), and the input connector (6) is located at the rear side of the output connector (8). The input connector (6) is detachably connected via an input connector fixing screw (5). An input rod (19) is provided at one end of the input connector (6) inserted into the cavity (1), an output rod (20) is provided at one end of the output connector (8) inserted into the cavity (1), an auxiliary input rod (21) is provided at one end of the auxiliary input connector (9) inserted into the cavity (1), and an auxiliary output rod (22) is provided at one end of the auxiliary output connector (11) inserted into the cavity (1); A transmission copper sheet (13) is provided in the cavity (1), and two transmission copper sheets (13) are provided. One end of the transmission copper sheet (13) is connected to the input rod (19), and the other end is connected to the auxiliary input rod (21). Another transmission copper sheet (13) has one end connected to the output rod (20), and the other end connected to the auxiliary output rod (22). By splitting a single-channel band-stop filter into two or more channels, two auxiliary connectors are added when one channel is split, and then the single channel is designed and debugged, and then the design and debugging range of multiple cavities in a single channel of the band-stop filter is increased by connecting an external cable assembly (15); A tuning screw (4) is provided on the cover plate (2).

2. The simplified design structure of multiple cavities in a single channel of the band-stop filter according to claim 1 is characterized in that: The output connector fixing screws (7) are provided in four numbers, and the four output connector fixing screws (7) are fixed at the four corners of the fixing part of the output connector (8). The input connector fixing screws (5) are provided in four numbers, and the four input connector fixing screws (5) are fixed at the four corners of the fixing part of the input connector (6).

3. The simplified design structure of multiple cavities in a single channel of the band-stop filter according to claim 1 is characterized in that: The two transmission copper sheets (13) are both fixedly connected via transmission copper sheet fixing screws (14), and a total of four transmission copper sheet fixing screws (14) are provided.

4. The simplified design structure of multiple cavities in a single channel of the band-stop filter according to claim 1 is characterized in that: The auxiliary input connector fixing screws (10) are provided in four numbers, and the four auxiliary input connector fixing screws (10) are fixed at the four corners of the fixing part of the auxiliary input connector (9). The auxiliary output connector fixing screws (12) are provided in four numbers, and the four auxiliary output connector fixing screws (12) are fixed at the four corners of the fixing part of the auxiliary output connector (11).

5. The simplified design structure of multiple cavities in a single channel of a band-stop filter according to claim 1, characterized in that: The cover plate (2) is provided with cover plate fixing screws (3), and the cover plate fixing screws (3) realize the detachable connection between the cavity (1) and the cover plate (2). A total of 55 cover plate fixing screws (3) are provided, and the 55 cover plate fixing screws (3) are evenly distributed on the cover plate (2).

6. The simplified design structure of multiple cavities in a single channel of a band-stop filter according to claim 1, characterized in that: A total of six tuning screws (4) are provided, and the six tuning screws (4) are evenly distributed on the cover plate (2) and inserted into the cavity (1).

7. The simplified design structure of multiple cavities in a single channel of a band-stop filter according to claim 6, characterized in that: A baffle plate (18) is fixedly connected to the cavity (1), and there are four baffle plates (18) in total. The four baffle plates (18) and the cavity (1) form six partition spaces, and a tuning stud (16) is provided in each of the six partition spaces. The tuning stud (16) is fixedly connected to the cavity (1), and a tuning screw hole (17) is provided on the tuning stud (16). A tuning screw (4) is inserted into the tuning screw hole (17).

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