CN211829143U

CN211829143U - Resonant tube assembly and filter

Info

Publication number: CN211829143U
Application number: CN202020399758.8U
Authority: CN
Inventors: 王志伟; 陈启泰
Original assignee: Shenzhen Tatfook Technology Co Ltd
Current assignee: Shenzhen Tatfook Technology Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-10-30
Anticipated expiration: 2030-03-25

Abstract

The utility model provides a resonance tube subassembly and wave filter, the wave filter include the cavity, locate input or output port on the cavity and locate the cavity in the resonance tube subassembly as above, the resonance tube subassembly includes resonance tube and connecting portion, a side end of connecting portion is bent and is formed with the laminating section of bending, the laminating section of bending is kept away from the lateral wall of one side of connecting portion and the lateral wall welded fastening of resonance tube. Bending at the end of the connecting part to form a bending and laminating section, the outer wall surface of the bending and laminating section is directly welded with the outer wall surface of the resonance tube in a laminating manner, the contact area between the connecting part and the resonance tube is increased, tin flows more easily, the welding effect is convenient to observe, the welding reliability can be better ensured, punching on the resonance tube is not needed, the types of materials are reduced, the increase of unsmooth sliding points of signals in a transmission path is also avoided, the existing resonance tube is not needed to be adjusted, and connection can be realized by changing the processing technology.

Description

Resonant tube assembly and filter

Technical Field

The utility model relates to a technical field of communication radio frequency equipment, concretely relates to resonance tube subassembly and wave filter.

Background

The resonator tube assembly is an important component of a filter, and is disposed in a cavity of the filter, and the cavity generally includes a plurality of resonators, one of the resonators generally transmits a signal to an input/output port through a connecting piece or a connecting line, and each resonator has a resonator tube disposed therein, and the connecting piece or the connecting line is generally connected to the resonator by three methods:

1. the mounting table is machined on one side of the resonant tube, the connecting sheet is fixed on the mounting table, and the other end of the connecting sheet is welded to the connecting rod of the input/output port.

2. Referring to fig. 1, a resonator tube 100 ' is disposed in a cavity 400 ', a through hole is formed in a side wall of the resonator tube 100 ', a connection line 200 ' is inserted into the through hole, and then an outer wall of the through hole and the connection line 200 ' are welded and fixed, so that one end of the connection line 200 ' is directly welded to the resonator tube 100 ', and the other end of the connection line 200 ' is welded to a connection rod of an input or output port 500 ', but the connection line 200 ' is directly welded to the resonator tube 100 ', so that a welding spot is increased, unsmooth slip points of signals in a transmission path are increased, intermodulation is affected, and welding quality and reliability are low, so that processing cost is high;

2. chinese patent application publication No. CN203039058U discloses a cavity filter and a resonator tube, including a cavity, a resonator tube installed in the cavity, and an input/output port on the cavity, where the resonator tube has a connection portion integrally formed with the resonator tube for transmitting signals, and the connection portion extends to the input/output port and is connected with the input/output port. However, the connecting portion and the resonator tube are directly and integrally formed, so that the material consistency of the connecting portion and the resonator tube needs to be ensured, and planning needs to be performed during production and processing of the resonator tube, but the resonator tube produced by more manufacturers is not integrally formed with the connecting portion at present, the size and the specification of the resonator tube are more, and the installation position of the connecting portion needs to be adjusted according to specific requirements, so that the applicability of direct integral forming is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resonance tube subassembly to there are the processing technology complicacy, the yield is low and suitability subalternation technical problem respectively to the processing method who solves among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the resonator tube assembly comprises a resonator tube and a connecting part, wherein a bending joint section is formed by bending one side end part of the connecting part, one side wall of the bending joint section is jointed with the side wall of the resonator tube, and the side wall of one side, far away from the connecting part, of the bending joint section is welded and fixed with the side wall of the resonator tube.

Further, the bending attachment section is bent from the connecting part towards the bottom end of the resonator tube.

Furthermore, the extending direction of the bending attachment section is consistent with the height direction of the resonator tube, and the connecting part extends towards one side far away from the resonator tube.

Further, the length of the bending joint section is 1-3 mm.

Furthermore, the joint of the bending attaching section and the connecting part is provided with a bending part, and the angle of the bending part is 90 degrees.

Furthermore, the bending joint of the bending joint section and the connecting part is an arc-shaped bending part, and the bending radius of the bending part is 0.2-1 mm.

Furthermore, a bending part is formed on one side of the connecting part far away from the bending attaching section.

Further, the resonator tube comprises a first tube body located at the top end of the resonator tube, a second tube body located at the bottom end of the resonator tube, and a partition plate arranged between the first tube body and the second tube body, the first tube body has a first opening facing the top end of the resonator tube, the second tube body has a second opening facing the bottom end of the resonator tube, and the partition plate is provided with a through hole for the fixing member to pass through.

Further, a flange portion is arranged at the top end of the resonance tube, and the flange portion is annularly arranged on the circumferential outer edge of the resonance tube.

The utility model also discloses a wave filter, include the cavity, locate input or output port on the cavity and locate in the cavity as above the resonating tube subassembly, connecting portion are kept away from bend the one end of laminating section with input or output port is connected.

The utility model provides a resonant tube subassembly and wave filter's beneficial effect lies in: compared with the prior art, the utility model discloses the resonance tube subassembly, bend at the tip of connecting portion and form the laminating section of bending, the outer wall of the laminating section of bending is direct and the laminating of the outer wall of resonance tube, then laminating section and resonance tube welding will bend, area of contact between connecting portion and the resonance tube has been increased, tin flows more easily, and conveniently observe the welding effect, guarantee welded reliability that can be better, and need not punch on the resonance tube, the kind of material has been reduced, the increase of the smooth point of not following in the same direction as of signal in transmission path has still been avoided, need not adjust current resonance tube, both can realize connecting through the mode that changes processing technology.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional diagram of a prior art filter;

fig. 2 is a schematic perspective view of a resonant tube assembly according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a resonant tube assembly according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural diagram of a resonant tube assembly according to an embodiment of the present invention.

Description of reference numerals:

100', resonator tubes; 200' and connecting lines; 400', a cavity; 500', input or output ports.

100. A resonant tube; 200. a connecting portion; 300. a fixing member; 110. a first pipe body; 120. a second tube body; 130. a partition plate; 140. a flange portion; 111. a first opening; 121. a second opening; 131. a through hole; 210. bending the attaching section; 220. bending the part; 230. a bending part.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 2 and fig. 3 together, the resonator tube assembly of the present invention will now be described. The resonator tube assembly comprises a resonator tube 100 and a connecting part 200, wherein a bending joint section 210 is formed by bending the end part of one side of the connecting part 200, one side wall of the bending joint section 210 is jointed with the side wall of the resonator tube 100, and the side wall of one side, far away from the connecting part 200, of the bending joint section 210 is welded and fixed with the side wall of the resonator tube 100.

The utility model provides a resonance tube assembly, compared with the prior art, bend at the tip of connecting portion 200 and form the laminating section 210 of bending, the outer wall of the laminating section 210 of bending is direct and the laminating of the outer wall of resonance tube 100, then will bend laminating section 210 and resonance tube 100 welding, the area of contact between connecting portion 200 and resonance tube 100 has been increased, it flows tin more easily, and conveniently observe the welding effect, guarantee welded reliability that can be better, and need not punch on resonance tube 100, the kind of material has been reduced, the increase of the not in the same direction as smooth point of signal in transmission path has still been avoided, need not adjust current resonance tube 100, both can realize the connection through the mode that changes processing technology.

Further, please refer to fig. 2 and fig. 3 together, as a specific embodiment of the resonator tube assembly according to the present invention, the bending attachment section 210 is bent from the connecting portion 200 toward the bottom end of the resonator tube 100, an extending direction of the bending attachment section 210 is consistent with a height direction of the resonator tube 100, and the connecting portion 200 extends toward a side away from the resonator tube 100. Specifically, the bending attachment section 210 is formed by bending the end portion of the connection portion 200 downward, the bending attachment section 210 after bending can be completely attached to the outer side wall of the resonance tube 100, then the outer side wall of the bending attachment section 210 is attached to the resonance tube 100 in a welding mode, the welding area can be increased, tin flowing and observation are easy, and welding reliability is ensured. The extending direction of the bending attachment section 210 is vertical towards the bottom of the resonator tube 100, and the direction of tin flowing is also towards the bottom of the resonator tube 100, so that the welding effect can be better controlled. The connecting portion 200 extends toward the outside so that an end of the connecting portion 200 away from the bending attachment section 210 can be connected to an input or output port (not shown). Of course, according to practical situations and specific requirements, in other embodiments of the present invention, if the position of the input or output port is adjusted, the bending attachment section 210 may also be bent from the connecting portion 200 toward the top end of the resonator tube 100, which is not limited herein.

Preferably, the length of the bent attaching section 210 is 1 to 3 mm. Specifically, the welding difficulty is increased by the overlong length of the bending attachment section 210, so that the yield is reduced. Too short a length of bend engaging section 210 may affect the stability of the connection between bend engaging section 210 and resonator tube 100. Therefore, the length of the bending attachment section 210 is preferably 1 to 3mm, and the length of the bending attachment section 210 is preferably 2 mm. Of course, according to practical situations and specific requirements, in other embodiments of the present invention, if the diameter of the connecting portion 200 is increased, the length of the bending attachment section 210 may be greater than 3mm, and this is not limited herein.

Further, referring to fig. 2 and 3, as a specific embodiment of the resonator tube assembly provided by the present invention, the connecting portion 200 extends toward a side away from the resonator tube 100, and a joint of the bending attachment section 210 and the connecting portion 200 has a bending portion 220, and an angle of the bending portion 220 is 90 °. That is, the length direction of the bending attachment section 210 is the same as the height direction of the resonator tube 100, the extending direction of the connecting portion 200 is perpendicular to the height direction of the resonator tube 100, and the connecting portion 200 extends toward the side away from the resonator tube 100, and at this time, a bending portion 220 is formed between the connecting portion 200 and the bending attachment section 210, and the angle of the bending portion 220 is preferably 90 °. Of course, according to practical situations and specific requirements, in other embodiments of the present invention, if the position of the input or output port is adjusted, the extending direction of the connecting portion 200 may also be adjusted, and the angle of the bending portion 220 may also be changed to be greater than 90 degrees or smaller than 90 degrees, which is not limited herein.

Preferably, the bending joint section 210 and the bending part 220 of the connecting part 200 are curved, and the bending radius of the bending part 220 is 0.2 to 1 mm. Specifically, the bending attachment section 210 is formed by bending the connecting portion 200, the connecting portion 200 can be connected with a connecting line or a connecting sheet, the connecting line or the connecting sheet is bent in an arc shape when being bent, a round angle can be formed at the bending position 220, the arc bending is adopted to ensure the strength of the bending attachment section 210 and the bending position 220 of the connecting portion 200, and edges and corners can be avoided. The determination of the bending radius needs to be jointly determined by combining the material of the connecting portion 200, the thickness of the connecting portion 200 and the length of the bending attachment section 210, and when the length of the bending attachment section 210 is 1 to 3mm, the optimal bending radius of the bending portion 220 is 0.2 to 1 mm.

Further, referring to fig. 2 and 3, as an embodiment of the resonant tube assembly provided by the present invention, the connecting portion 200 is further formed with a bending portion 230 at a side far away from the bending attachment section 210. Specifically, the connecting portion 200 can be directly connected to the input or output port, the height of the input or output port can be adjusted according to actual conditions, and the position of the input or output port is not directly opposite to the resonator tube 100, so that the connection between the resonator tube 100 and the input or output port can be conveniently realized by providing one or more bending portions 230 on the connecting portion 200, and the bending direction and angle of the bending portion 230 can be adjusted according to needs.

Further, referring to fig. 4, as a specific embodiment of the resonator tube assembly provided by the present invention, the resonator tube 100 includes a first tube 110 located at the top end of the resonator tube 100, a second tube 120 located at the bottom end of the resonator tube 100, and a partition 130 disposed between the first tube 110 and the second tube 120, the first tube 110 has a first opening 111 facing the top end of the resonator tube 100, the second tube 120 has a second opening 121 facing the bottom end of the resonator tube 100, and the partition 130 is provided with a through hole 131 for the fixing member 300 to pass through. Specifically, two ends of the resonator tube 100 are separated by a partition 130, so as to form a first tube 110 and a second tube 120 separately, the first tube 110 is located at an upper end and is used for matching with an external tuning screw (not shown) to realize tuning, the second tube 120 is located at a bottom, a through hole 131 is formed in the partition 130, and the fixing member 300 can penetrate through the through hole 131 to realize fixed connection between the tuning tube and the cavity 400. Of course, according to practical situations and specific requirements, the resonator tube 100 may also be configured without the second tube 120, and the through hole 131 is directly formed at the bottom of the first tube 110, so that the fixing member 300 passes through the through hole 131, which is not limited herein.

Further, referring to fig. 2 to 4, as a specific embodiment of the resonant tube assembly provided by the present invention, a flange portion 140 is disposed at the top end of the resonant tube 100, and the flange portion 140 is annularly disposed at the circumferential outer edge of the resonant tube 100. Specifically, the flange portion 140 is located at the tip end of the resonator tube 100, and the tip end of the resonator tube 100 has the flange portion 140 that is bent perpendicularly toward the outside of the resonator tube 100 and extends circumferentially, and the flange portion 140 can increase the tip end area of the resonator tube 100 and can be tuned in accordance with a tuning screw.

Referring to fig. 2 to 4, the present invention further provides a filter, the filter includes a cavity (not shown), an input or output port disposed on the cavity, and a resonator tube assembly disposed in the cavity according to any of the above embodiments, wherein an end of the connecting portion 200 away from the bending attachment section 210 is connected to the input or output port.

The utility model provides a filter, bend at the tip of connecting portion 200 and form the laminating section 210 of bending, the outer wall of the laminating section 210 of bending is direct and the laminating of the outer wall of resonance tube 100, then laminating section 210 and resonance tube 100 welding will bend, area of contact between connecting portion 200 and resonance tube 100 has been increased, it flows tin more easily, and conveniently observe the welding effect, guarantee welded reliability that can be better, and need not punch on resonance tube 100, the kind of material has been reduced, the increase of the smooth point of not following in the same direction as of signal in the transmission route has still been avoided, need not adjust current resonance tube 100, both can realize the connection through the mode that changes processing technology.

Specifically, the filter is provided with a plurality of cavities, each cavity is internally provided with a resonant tube assembly, the input or output port is arranged on the side wall of the cavity, and the input or output port is provided with a connector (not shown) which can be connected with other external equipment, so that the input or output of signals is realized. The filter also needs to include other structures such as a cover plate and a tuning structure, and the cover plate and the tuning structure are prior art.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. Resonance tube subassembly, its characterized in that: the resonator comprises a resonator tube (100) and a connecting part (200), wherein the end part of one side of the connecting part (200) is bent to form a bending attachment section (210), one side wall of the bending attachment section (210) is attached to the side wall of the resonator tube (100), and the side wall of one side, away from the connecting part (200), of the bending attachment section (210) is welded and fixed with the side wall of the resonator tube (100).

2. A resonator tube assembly according to claim 1, wherein: the bending attachment section (210) is bent from the connecting part (200) towards the bottom end of the resonator tube (100).

3. A resonator tube assembly according to claim 1, wherein: the extending direction of the bending attachment section (210) is consistent with the height direction of the resonator tube (100), and the connecting part (200) extends towards one side far away from the resonator tube (100).

4. A resonator tube assembly according to claim 1, wherein: the length of the bending attaching section (210) is 1-3 mm.

5. A resonator tube assembly according to claim 1, wherein: the joint of the bending attaching section (210) and the connecting part (200) is provided with a bending part (220), and the angle of the bending part (220) is 90 degrees.

6. A resonator tube assembly according to claim 1, wherein: the bending joint section (210) and the bending part (220) of the connecting part (200) are bent in an arc shape, and the bending radius of the bending part (220) is 0.2-1 mm.

7. The resonator tube assembly of any one of claims 1 to 6, wherein: the connecting part (200) is further provided with a bending part (230) at one side far away from the bending attaching section (210).

8. The resonator tube assembly of any one of claims 1 to 6, wherein: the resonator tube (100) comprises a first tube body (110) located at the top end of the resonator tube (100), a second tube body (120) located at the bottom end of the resonator tube (100) and a partition plate (130) arranged between the first tube body (110) and the second tube body (120), the first tube body (110) is provided with a first opening (111) facing the top end of the resonator tube (100), the second tube body (120) is provided with a second opening (121) facing the bottom end of the resonator tube (100), and a through hole (131) for a fixing piece (300) to pass through is formed in the partition plate (130).

9. The resonator tube assembly of any one of claims 1 to 6, wherein: the top end of the resonance tube (100) is provided with a flange part (140), and the flange part (140) is annularly arranged on the circumferential outer edge of the resonance tube (100).

10. A filter, characterized by: the resonator tube assembly of any one of claims 1 to 9 comprising a cavity, an input or output port provided on the cavity, and an end of the connection portion (200) remote from the bending attachment section (210) being connected to the input or output port.