A filter

Abstract

The present invention is applicable to the technical field of filters, and provides a filter, including: a shell provided with at least two resonant cavities, the shell provided with a mounting hole, a channel connecting the mounting hole and a resonant cavity; a resonator correspondingly arranged in the resonant cavity; a connector assembly, the connector assembly including a connector, a connecting rod, a connecting piece and an insulating positioning piece; one end of the connecting rod is connected to the connector, and the other end is connected to the connecting piece and the insulating positioning piece, the connecting rod is installed in the mounting hole, the insulating positioning piece is installed in the channel, and the connecting piece is electrically connected to a resonator through a conductive piece; a positioning groove is provided in the middle position of the insulating positioning piece, and the connecting piece is installed in the positioning groove. The filter provided by the present invention is provided with an insulating positioning piece, and a positioning groove is provided in the middle position of the insulating positioning piece, and the connecting piece is installed in the positioning groove, which not only ensures that the connecting piece is easy to install, but also ensures that the connecting piece is fixed in the middle position in the channel, so that the product performance is reliable and stable, the consistency is good, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a filter. Background Art

[0002] Filters are an important component of communication equipment. As a typical frequency selection device, filters can effectively suppress useless signals, and play the role of selecting signals, attenuating noise, filtering interference, etc. With the continuous development of filters, the installation method of filter connectors and the simplicity and convenience of production operations are particularly important.

[0003] In the prior art, the connector of the filter is usually installed in the mounting hole of the shell, the mounting hole is connected to a resonant cavity through a channel, the connector is connected to the connecting piece through a connecting rod, the connecting piece is installed in the channel and electrically connected to the resonator in the resonant cavity through a copper wire to achieve signal transmission between the connector and the resonator. In order to reduce the risk of short circuit between the connecting piece and the side wall of the channel, it is generally necessary to install the connecting piece in the middle position of the channel, but it is difficult to ensure that the connecting piece is installed in the middle position of the channel by directly installing the connecting piece in the channel. After the connecting piece is installed, it is difficult to ensure that the distance between the connecting piece and the side walls on both sides of the channel is consistent, which is prone to short circuit risks, and causes poor consistency of indicators, a large amount of production rework, and low production efficiency. Summary of the invention

[0004] The present invention provides a filter, aiming to solve the problem that after the connecting plate of the filter in the prior art is installed in the channel, it is difficult to ensure that the distance between the connecting plate and the side walls on both sides of the channel is consistent, there is a risk of short circuit, and it is easy to cause poor consistency of indicators, a large amount of production rework, and low production efficiency.

[0005] The present invention is implemented by providing a filter, comprising:

[0006] A shell having at least two resonant cavities, wherein the shell has a mounting hole and a passage connecting the mounting hole and one of the resonant cavities;

[0007] a resonator correspondingly arranged in the resonant cavity; and

[0008] A connector assembly, the connector assembly comprising a connector, a connecting rod, a connecting piece and an insulating positioning piece; one end of the connecting rod is connected to the connector, and the other end is connected to the connecting piece and the insulating positioning piece, the connecting rod is installed in the mounting hole, the insulating positioning piece is adapted to and installed in the channel, and the connecting piece is electrically connected to a resonator through a conductive piece; a positioning groove is provided in the middle position of the insulating positioning piece, and the connecting piece is installed in the positioning groove so that the connecting piece is located in the middle position of the channel.

[0009] Preferably, the insulating positioning member is provided with a through hole, and one end of the connecting rod passes through the through hole on the insulating positioning member and is fixedly connected to the connecting piece.

[0010] Preferably, the insulating positioning member comprises:

[0011] a first supporting portion, wherein the first supporting portion is mounted on the mounting hole, and the via hole passes through the first supporting portion;

[0012] A second supporting part is integrally formed with the first supporting part, the positioning groove is distributed from one end of the second supporting part toward the first supporting part, the positioning groove is connected with the via hole, and the second supporting part is installed in the channel and tightly matched with the side walls on both sides of the channel.

[0013] Preferably, the connector assembly further comprises:

[0014] A rivet post is installed in the installation hole, wherein the rivet post has an inner hole extending through the axial direction thereof, the connector is installed at one end of the rivet post, and one end of the connecting rod extends into the inner hole and is connected to the connector.

[0015] Preferably, the pressure riveting column includes:

[0016] Main body;

[0017] A mating end connected to the main body and adapted to the aperture of the mounting hole; and

[0018] An extended end connected to the mating end, wherein the outer diameter of the extended end is smaller than the diameter of the mating end.

[0019] Preferably, the riveting column further includes a positioning ring which is provided between the main body and the mating end and protrudes relative to the peripheral side of the mating end, and the outer diameter of the positioning ring is larger than the inner diameter of the mounting hole.

[0020] Preferably, the connecting plate is provided with a connecting hole, and one end of the connecting rod connected to the connecting plate is provided with a plurality of elastic arms distributed along the axial direction of the connecting rod and capable of elastic deformation toward the central axis of the connecting rod, and a limiting portion is provided on the elastic arm, and the plurality of elastic arms pass through the connecting hole and enable the limiting portion to limit the connecting plate on the connecting rod.

[0021] Preferably, a movable groove is provided between the plurality of elastic arms, and the plurality of elastic arms are isolated from each other by the movable groove.

[0022] Preferably, the number of the elastic arms is four, and the movable groove is a cross groove.

[0023] Preferably, the limiting portions on the plurality of elastic arms are spaced apart from each other, and the plurality of limiting portions form a ring shape whose outer diameter is larger than the inner diameter of the connecting hole.

[0024] The filter provided by the present invention is provided with an insulating positioning piece, a positioning groove is provided in the middle position of the insulating positioning piece, and a connecting piece is installed in the positioning groove. In this way, after the insulating positioning piece is installed in the channel, the connecting piece can be located in the middle position of the channel, and the connecting piece can be easily fixed in the middle position in the channel, so that the distance between the connecting piece and the side walls on both sides of the channel is consistent, effectively avoiding the risk of short circuit, and the consistency of indicators is good, which not only ensures that the connecting piece is easy to install, but also ensures the installation position of the connecting piece, so that the product performance is reliable and stable, the consistency is good, and the processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of the filter provided by an embodiment of the present invention after removing the cover plate;

[0026] Figure 2 A three-dimensional structural exploded view of the filter provided by an embodiment of the present invention after removing the cover plate;

[0027] Figure 3 A schematic structural diagram of a housing of a filter provided in an embodiment of the present invention;

[0028] Figure 4 A three-dimensional structural diagram of a connector assembly of a filter provided in an embodiment of the present invention;

[0029] Figure 5 A three-dimensional structural exploded view of a connector assembly of a filter provided in an embodiment of the present invention;

[0030] Figure 6 A three-dimensional structural diagram of an insulating positioning member of a filter provided in an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of a top view of the filter provided by an embodiment of the present invention with the cover plate removed;

[0032] Figure 8 For along Figure 7 Schematic diagram of the cross-section structure in the AA direction;

[0033] Fig. 9 A three-dimensional structural diagram of a connecting rod of a filter provided by an embodiment of the present invention;

[0034] Fig.10 A three-dimensional structural diagram of a filter provided by an embodiment of the present invention when a connecting rod and a connecting sheet are connected. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The filter provided by the embodiment of the present invention is provided with an insulating positioning piece, a positioning groove is provided in the middle position of the insulating positioning piece, and a connecting piece is installed in the positioning groove. In this way, after the insulating positioning piece is installed in the channel, the connecting piece can be located in the middle position of the channel, and the connecting piece can be easily fixed in the middle position in the channel, so that the distance between the connecting piece and the side walls on both sides of the channel is consistent, effectively avoiding the risk of short circuit, and resulting in good consistency of indicators, which not only ensures the convenience of installation of the connecting piece, but also ensures the installation position of the connecting piece, so that the product performance is reliable and stable with good consistency.

[0037] Please refer to Figure 1-Figure 6 , an embodiment of the present invention provides a filter, comprising:

[0038] A housing 1 having at least two resonant cavities 11, wherein the housing 1 has a mounting hole 12 and a passage 13 connecting the mounting hole 12 and a resonant cavity 11;

[0039] A resonator 2 correspondingly disposed in the resonant cavity 11; and

[0040] The connector assembly 3 includes a connector 31, a connecting rod 32, a connecting piece 33 and an insulating positioning piece 34; one end of the connecting rod 32 is connected to the connector 31, and the other end is connected to the connecting piece 33 and the insulating positioning piece 34, the connecting rod 32 is installed in the mounting hole 12, the insulating positioning piece 34 is adapted to and installed in the channel 13, and the connecting piece 33 is electrically connected to a resonator 2 through a conductive member 5; a positioning groove 340 is provided in the middle position of the insulating positioning piece 34, and the connecting piece 33 is installed in the positioning groove 340 so that the connecting piece 33 is located in the middle position of the channel 13.

[0041] In the embodiment of the present invention, the number of resonators 2 is the same as the number of resonant cavities 11, and the specific number of resonant cavities 11 and resonators 2 is not limited. Each resonant cavity 11 is provided with a corresponding resonator 2, and adjacent resonant cavities 11 are coupled through windows.

[0042] In the embodiment of the present invention, the filter further comprises a cover plate (not shown) covering the housing 1 to achieve sealing of the housing 1 .

[0043] In the embodiment of the present invention, the mounting hole 12 is a circular hole, and the channel 13 is disposed on one side of the mounting hole 12 and communicates with a resonant cavity 11 .

[0044] In the embodiment of the present invention, one end of the connecting rod 32 is connected to the connector 31 and the insulating positioning member 34, and the other end is connected to the connecting plate 33. The connecting rod 32 transmits the signal input by the connector 31 to the connecting plate 33, and the connecting plate 33 then transmits the signal to the resonator 2 through the conductive member 5.

[0045] As an embodiment of the present invention, the filter further comprises a conductive member 5, one end of the conductive member 5 is connected to the resonator 2, and the other end of the conductive member 5 is welded to the connecting sheet 33. The conductive member 5 is a copper wire.

[0046] In this embodiment, the specific shape of the copper wire is not limited. After the connector assembly 3 is integrally mounted on the housing 1, one end of the conductive member 5 is welded to the resonator 2, and the other end of the conductive member 5 is welded to the connecting piece 33 to achieve a stable electrical connection between the connecting piece 33 and the resonator 2.

[0047] In the embodiment of the present invention, the insulating positioning member 34 is made of an insulating material to achieve insulation isolation between the connecting piece 33 and the side walls of the channel 13. The shape and size of the positioning groove 340 are adapted to the shape and size of the connecting piece 33, so that when the connecting piece 33 is installed in the positioning groove 340, the connecting piece 33 can be stably fixed in the positioning groove 340, so that the connecting piece 33 has good position accuracy.

[0048] Please refer to Figure 7-Figure 8 In the embodiment of the present invention, by providing a positioning groove 340 in the middle position of the insulating positioning member 34 and installing the connecting piece 33 in the positioning groove 340, when the insulating positioning member 34 is installed in the channel 13, the connecting piece 33 can be located in the middle position of the channel 13, so that the connecting piece 33 can be easily fixed in the middle position of the channel 13, which ensures that the connecting piece 33 is easy to install and is located in the middle position of the channel 13, so that the product performance is reliable and stable, the consistency is good, and the processing efficiency is improved.

[0049] In the embodiment of the present invention, when the insulating positioning member 34 is installed in the channel 13 , the positioning groove 340 is distributed along the line between the center of the resonant cavity 11 and the center of the mounting hole 12 , and the central axis of the positioning groove 340 is distributed along the central axis of the channel 13 .

[0050] As an embodiment of the present invention, the insulating positioning member 34 is provided with a through hole 341 , and one end of the connecting rod 32 passes through the through hole 341 on the insulating positioning member 34 and is fixedly connected to the connecting piece 33 .

[0051] In this embodiment, when the connecting rod 32 is connected to the connecting piece 33 and the insulating positioning piece 34, one end of the connecting rod 32 passes through the through hole 341 on the insulating positioning piece 34 and is connected to the connecting piece 33, thereby achieving a fixed connection between the connecting rod 32, the connecting piece 33 and the insulating positioning piece 34.

[0052] As an embodiment of the present invention, one end of the insulating positioning piece 34 close to the resonance cavity 11 is flush with the side walls 131 on both sides of the channel 13 or extends toward the resonance cavity 11 relative to the side walls 131 on both sides of the channel 13, and one end of the connecting piece 33 close to the resonance cavity 11 extends toward the resonance cavity 11 relative to the insulating positioning piece 34.

[0053] In this embodiment, by making one end of the insulating positioning member 34 close to the resonance cavity 11 flush with the side walls 131 on both sides of the channel 13 or extending toward the resonance cavity 11 relative to the side walls 131 on both sides of the channel 13, the insulating positioning member 34 can effectively isolate the connecting piece 33 from the side walls 131 on both sides of the channel 13, further reducing the risk of short circuit between the connecting piece 33 and the side walls 131 on both sides of the channel 13; at the same time, the end of the connecting piece 33 close to the resonance cavity 11 extends toward the resonance cavity 11 relative to the insulating positioning member 34, so that the portion of the connecting piece 33 exposed outside the insulating positioning member 34 can be as far away from the side walls 131 on both sides of the channel 13 as possible, further improving the safety performance and facilitating the welding operation between the connecting piece 33 and the conductive member 5.

[0054] As an embodiment of the present invention, the connector assembly 3 further includes:

[0055] The rivet post 35 is installed in the installation hole 12 , and an inner hole 350 is penetrated through the rivet post 35 along its axial direction. The connector 31 is installed at one end of the rivet post 35 , and one end of the connecting rod 32 extends into the inner hole 350 and is connected to the connector 31 .

[0056] In this embodiment, the connector 31 is fixedly mounted in the inner hole 350 of the rivet column 35, so that the connector 31 is fixedly mounted. One end of the connecting rod 32 extends into the inner hole 350 and is connected to the connector 31, so that the connecting rod 32 is electrically connected to the connector 31. After the connecting rod 32 is assembled with the insulating positioning member 34 and the connecting piece 33, the rivet column 35 is pressed into the mounting hole 12, so that the entire connector assembly 3 is stably fixed on the housing 1.

[0057] As an embodiment of the present invention, the insulating positioning member 34 includes:

[0058] A first support portion 342 , the first support portion 342 is installed in the installation hole 12 , and the through hole 341 passes through the first support portion 342 ;

[0059] The second support portion 343 is integrally formed with the first support portion 342 , and the positioning groove 340 is distributed from one end of the second support portion 343 toward the first support portion 342 . The positioning groove 340 is connected to the through hole 341 . The second support portion 343 is installed in the channel 13 and tightly fits with the side walls 131 on both sides of the channel 13 .

[0060] In this embodiment, the first support portion 342 is cylindrical and matches the mounting hole 12 , and the outer diameter of the first support portion 342 is smaller than the inner diameter of the mounting hole 12 , so that the first support portion 342 can be easily inserted into the mounting hole 12 .

[0061] In this embodiment, the second support portion 343 is in the shape of an elongated strip. The width of the second support portion 343 matches the width of the channel 13, so that when the second support portion 343 is installed in the channel 13, the positioning groove 340 is just located in the middle of the channel 13, so that the connecting piece 33 installed in the positioning groove 340 is located in the middle of the channel 13.

[0062] In this embodiment, the insulating positioning member 34 is arranged into a first support portion 342 and a second support portion 343, and the insulating positioning member 34 is connected to the connecting rod 32 by using the first support portion 342, so as to achieve the fixation of the insulating positioning member 34; the insulating positioning member 34 uses the positioning groove 340 on the second support portion 343 to position the connecting plate 33, and the first support portion 342 and the second support portion 343 adopt an integrated design, and there is no need to install support members in the channel 13 and the mounting hole 12 respectively, which is convenient for installation, reduces the types of materials, and reduces the difficulty of material control.

[0063] As an embodiment of the present invention, the insulating positioning member 34 further includes:

[0064] The sleeve portion 344 is disposed on the first support portion 342 , and the through hole 341 penetrates both the first support portion 342 and the sleeve portion 344 . The sleeve portion 344 is plugged into the inner hole 350 of the riveting column 35 .

[0065] In this embodiment, the insulating positioning member 34 utilizes the sleeve portion 344 to be plugged into the inner hole 350 of the rivet column 35, which facilitates the fixed connection between the insulating positioning member 34 and the connecting rod 32 and improves the connection strength between the insulating positioning member 34 and the connecting rod 32.

[0066] In this embodiment, the sleeve portion 344 and the positioning groove 340 are respectively arranged on opposite sides of the insulating positioning member 34. The positioning groove 340 is arranged on a side of the insulating positioning member 34 away from the connector 31. In addition to this embodiment, the positioning groove 340 can also be arranged on a side of the insulating positioning member 34 close to the connector 31.

[0067] As an embodiment of the present invention, the rivet column 35 includes:

[0068] Main body 351;

[0069] A mating end 352 connected to the main body 351 and adapted to the aperture of the mounting hole 12; and

[0070] The extended end 353 is connected to the mating end 352 , and the outer diameter of the extended end 353 is smaller than the diameter of the mating end 352 .

[0071] In this embodiment, the mating end 352 is adapted to the hole diameter of the mounting hole 12. When the rivet post 35 is pressed into the mounting hole 12, the rivet post 35 forms a tight fit with the mounting hole 12. The rivet post 35 is provided with an extended end 353, that is, the rivet post 35 is extended to form the extended end 353. When the rivet post 35 is pressed into the mounting hole 12, the extended end 353 first enters the mounting hole 12. Since the outer diameter of the extended end 353 is smaller than the diameter of the mating end 352, the extended end 353 can be easily placed in the mounting hole 12. The extended end 353 plays a positioning and guiding role when the rivet post 35 is pressed into the mounting hole 12, and can ensure that the rivet post 35 will not be skewed after riveting, thereby ensuring the position and size of the rivet post 35.

[0072] In this embodiment, the length of the extended end 353 is 2 to 3 mm, and the outer diameter of the extended end 353 is 0.02 to 0.2 mm smaller than the inner diameter of the mounting hole 12, which facilitates the installation of the extended end 353 into the mounting hole 12 and facilitates the processing of the rivet column 35.

[0073] As an embodiment of the present invention, the rivet column 35 further includes a positioning ring 354 disposed between the main body 351 and the mating end 352 and protruding relative to the circumferential side of the mating end 352 , and the outer diameter of the positioning ring 354 is greater than the inner diameter of the mounting hole 12 .

[0074] In this embodiment, the positioning ring 354 limits the rivet column 35. When the rivet column 35 is continuously pressed into the installation hole 12, when the positioning ring 354 abuts against the positioning step on the housing 1, the rivet column 35 is pressed into place, thereby preventing the rivet column 35 from being further pressed in, which facilitates the user's installation operation.

[0075] As an embodiment of the present invention, the end of the extended end 353 is provided with a chamfer. The chamfer of the end of the extended end 353 plays a guiding role, making it easier for the extended end 353 to be inserted into the mounting hole 12.

[0076] Please refer to Figure 5 , Fig. 9 and Fig.10 As an embodiment of the present invention, the connecting piece 33 is provided with a connecting hole 331, and one end of the connecting rod 32 is provided with a plurality of elastic arms 321 distributed along the axial direction of the connecting rod 32 and capable of elastically deforming toward the central axis of the connecting rod 32. A limiting portion 322 is provided on the elastic arm 321, and the plurality of elastic arms 321 pass through the connecting hole 331 and enable the limiting portion 322 to limit the connecting piece 33 on the connecting rod 32.

[0077] In this embodiment, a plurality of elastic arms 321 are provided at one end of the connecting rod 32, which are distributed along the axial direction of the connecting rod 32 and can generate elastic deformation toward the central axis of the connecting rod 32, and a limiting portion 322 is provided on the elastic arm 321. When the connecting rod 32 is connected to the connecting piece 33, the plurality of elastic arms 321 at one end of the connecting rod 32 are simultaneously passed through the connecting hole 331 of the connecting piece 33. When the plurality of elastic arms 321 pass through the connecting hole 331 of the connecting piece 33, the plurality of elastic arms 321 shrink toward the central axis of the connecting rod 32, so that the connecting piece 33 can be completely inserted into the connecting rod 32, until the limiting portion 322 on the elastic arm 321 passes through the connecting hole of the connecting piece 33. After the connecting piece 33 is completely inserted into the connecting rod 32, the plurality of elastic arms 321 are reset under the action of their own elastic force, and the limiting portion 322 on the elastic arm 321 limits the connecting piece 33 on the connecting rod 32, thereby preventing the connecting piece 33 from falling off the connecting rod 32. When the connecting piece 33 is welded to the conductive member 5, even if the connecting piece 33 is heated during welding, the connecting piece 33 will not fall off the connecting rod 32, so that the connecting piece 33 and the connecting rod 32 are firmly connected, which is convenient for production and processing and is conducive to improving production efficiency.

[0078] In the embodiment of the present invention, the limiting parts 322 on the multiple elastic arms 321 are arranged at intervals from each other, and the multiple limiting parts 322 form a ring whose outer diameter is larger than the inner diameter of the connecting hole 331. In a natural state, the multiple limiting parts 322 form a ring whose outer diameter is larger than the inner diameter of the connecting hole 331, so that after the connecting piece 33 is inserted into the connecting rod 32, the limiting parts 322 on the multiple elastic arms 321 can simultaneously limit the connecting piece 33, prevent the connecting piece 33 from falling off the connecting rod 32, and make the connecting piece 33 firmly connected to the connecting rod 32.

[0079] In the embodiment of the present invention, a movable groove 320 is provided between the multiple elastic arms 321, and the multiple elastic arms 321 are isolated from each other by the movable groove 320. When the multiple elastic arms 321 pass through the connecting hole 331 of the connecting piece 33, the multiple elastic arms 321 shrink toward the central axis of the connecting rod 32, and at this time, the multiple limiting parts 322 form a ring whose outer diameter is smaller than the inner diameter of the connecting hole 331, so that the connecting piece 33 can be completely inserted into the connecting rod 32; after the connecting piece 33 is completely inserted into the connecting rod 32, the multiple elastic arms 321 are reset under the action of their own elastic force, and at this time, the limiting parts 322 on the multiple elastic arms 321 form a ring whose outer diameter is larger than the inner diameter of the connecting hole 331, so as to limit the connecting piece 33 and prevent the connecting piece 33 from falling off the connecting rod 32.

[0080] As an embodiment of the present invention, the number of elastic arms 321 is four, and the movable groove 320 is a cross groove, which is simple and convenient to process. Specifically, by thickening the front end diameter of the connecting rod 32, the front end diameter of the connecting rod 32 is larger than the diameter of the connecting hole 331 of the connecting piece 33, and then a cross groove is opened at the front end of the connecting rod 32 to form four elastic arms 321, and the four elastic arms 321 are isolated from each other by the cross groove, and the cross groove provides elastic deformation space for the four elastic arms 321, so that the four elastic arms 321 can produce elastic deformation in the direction of the central axis of the connecting rod 32. When the connecting piece 33 is inserted into the connecting rod 32, the four elastic arms 321 shrink in the direction of the central axis of the connecting rod 32, and the connecting piece 33 can be easily inserted into the connecting rod 32. After the connecting piece 33 is inserted into the connecting rod 32, the four elastic arms 321 are reset in the direction away from the central axis of the connecting rod 32, so that the limiting parts 322 on the four elastic arms 321 limit the connecting piece 33 on the connecting rod 32. In addition to this embodiment, the number of the elastic arms 321 may also be set to two, three or more than four.

[0081] As an embodiment of the present invention, a plurality of elastic arms 321 are welded to the connecting piece 33, so that the connecting rod 32 is matched with the connecting hole 331 of the connecting piece 33 through the plurality of elastic arms 321, and the connecting rod 32 is welded to the connecting piece 33 to further improve the stability of the connection between the connecting rod 32 and the connecting piece 33, so that the electrical connection performance between the connecting rod 32 and the connecting piece 33 is better. Since the limiting parts 322 on the plurality of elastic arms 321 limit the connecting piece 33, when the connecting piece 33 is welded to the conductive member 5, even if the solder at the welding place between the connecting piece 33 and the connecting rod 32 is melted by heat during the welding of the connecting piece 33, the connecting piece 33 will not fall off the connecting rod 32.

[0082] When assembling the filter provided by the present invention, the connecting piece 33 is first installed in the positioning groove 340 of the insulating positioning piece 34, and then one end of the connecting rod 32 provided with multiple elastic arms 321 is sequentially passed through the through hole 341 on the insulating positioning piece 34 and the connecting hole 331 on the connecting piece 33, and the connecting rod 32 is welded to the connecting piece 33. Then one end of the rivet column 35 is inserted into the connecting rod 32, and the connector 31 is installed on one end of the rivet column 35, so that the connecting rod 32 is connected to the connector 31, thereby completing the assembly of the entire connector assembly 3, and then the first support portion 342 of the insulating positioning piece 34 is aligned with the mounting hole 12, and the second support portion 343 of the insulating positioning piece 34 is aligned with the channel 13, and then the rivet column 35 is pressed into the mounting hole 12 in place, thereby fixing the connector assembly 3 on the housing 1, and the connecting piece 33 is located in the middle position of the channel 13, and finally one end of the conductive member 5 is welded to the resonator 2, and the other end of the conductive member 5 is welded to the connecting piece 33, thereby realizing the installation of the entire connector assembly 3.

[0083] The filter provided by the embodiment of the present invention is provided with an insulating positioning piece, a positioning groove is provided in the middle position of the insulating positioning piece, and a connecting piece is installed in the positioning groove. In this way, after the insulating positioning piece is installed in the channel, the connecting piece can be located in the middle position of the channel, and the connecting piece can be easily fixed in the middle position in the channel, so that the distance between the connecting piece and the side walls on both sides of the channel is consistent, which effectively avoids the risk of short circuit and results in good consistency of indicators. It not only ensures that the connecting piece is easy to install, but also ensures the installation position of the connecting piece, so that the product performance is reliable and stable, the consistency is good, and the processing efficiency is improved.

[0084] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter, characterized in that: include: A shell having at least two resonant cavities, wherein the shell has a mounting hole and a passage connecting the mounting hole and one of the resonant cavities; a resonator correspondingly arranged in the resonant cavity; as well as A connector assembly, the connector assembly comprising a connector, a connecting rod, a connecting piece and an insulating positioning piece; One end of the connecting rod is connected to the connector, and the other end is connected to the connecting piece and the insulating positioning piece. The connecting rod is installed in the mounting hole. The insulating positioning piece is adapted to and installed in the channel. The connecting piece is electrically connected to a resonator through a conductive piece. A positioning groove is provided in the middle position of the insulating positioning piece. The connecting piece is installed in the positioning groove so that the connecting piece is located in the middle position of the channel. The insulating positioning piece is provided with a through hole. One end of the connecting rod passes through the through hole on the insulating positioning piece and is fixedly connected to the connecting piece.

2. The filter according to claim 1, characterized in that The insulating positioning member comprises: a first supporting portion, wherein the first supporting portion is mounted on the mounting hole, and the via hole passes through the first supporting portion; A second supporting part is integrally formed with the first supporting part, the positioning groove is distributed from one end of the second supporting part toward the first supporting part, the positioning groove is connected with the via hole, and the second supporting part is installed in the channel and tightly matched with the side walls on both sides of the channel.

3. The filter according to claim 1, characterized in that The connector assembly further comprises: A rivet post is installed in the installation hole, wherein the rivet post has an inner hole extending through the axial direction thereof, the connector is installed at one end of the rivet post, and one end of the connecting rod extends into the inner hole and is connected to the connector.

4. The filter according to claim 3, characterized in that The pressure riveting column comprises: Main body; A mating end connected to the main body and adapted to the aperture of the mounting hole; and An extended end connected to the mating end, wherein the outer diameter of the extended end is smaller than the diameter of the mating end.

5. The filter according to claim 4, characterized in that The pressure riveting column also includes a positioning ring which is arranged between the main body and the mating end and protrudes relative to the peripheral side of the mating end, and the outer diameter of the positioning ring is larger than the inner diameter of the mounting hole.

6. The filter according to claim 1, characterized in that The connecting plate is provided with a connecting hole, and one end of the connecting rod connected to the connecting plate is provided with a plurality of elastic arms distributed along the axial direction of the connecting rod and capable of elastically deforming toward the central axis of the connecting rod, and a limiting portion is provided on the elastic arm. The plurality of elastic arms pass through the connecting hole and enable the limiting portion to limit the connecting plate on the connecting rod.

7. The filter according to claim 6, characterized in that A movable groove is arranged between the plurality of elastic arms, and the plurality of elastic arms are isolated from each other by the movable groove.

8. The filter according to claim 7, characterized in that The number of the elastic arms is four, and the movable groove is a cross groove.

9. The filter according to any one of claims 6 to 8, characterized in that: The limiting parts on the multiple elastic arms are arranged at intervals from each other, and the multiple limiting parts form a ring shape with an outer diameter larger than the inner diameter of the connecting hole.

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