CN213150982U

CN213150982U - Weldable nut and filter

Info

Publication number: CN213150982U
Application number: CN202022143644.XU
Authority: CN
Inventors: 雷丽娜
Original assignee: Dongguan Wall Communication Co ltd
Current assignee: Dongguan Wall Communication Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-07
Anticipated expiration: 2030-09-25

Abstract

The utility model provides a nut and wave filter can weld, the nut can weld includes the main part, connecting portion and weld part, when the second end of main part inserts in the through-hole on the apron of wave filter, the weld part supports and holds on the apron, the weld part heats and melts, and fix connecting portion and apron welded after cooling solidification as an organic whole, be ready to weld nut and apron welded an organic whole, so set up, need not to extrude the apron when fixing nut, only need adopt the welded mode, just can be in batches fixing nut and apron, and the apron can select the material that does not receive the heavy pressure for use, the thickness of apron can be littleer, namely the volume and the weight of wave filter can be littleer, in addition, the diameter that can weld the nut can set to get littleer than ordinary hexagon nut and the nut of riveting, the space is saved, do benefit to realize the cavity of miniaturized wave filter and arrange, therefore, the miniaturization of the whole product and the high-frequency expansion of electronic performance indexes are realized, and the filter can be widely applied to the field of small-sized 5G filters.

Description

Weldable nut and filter

Technical Field

The utility model relates to a communication passive device field, in particular to can weld nut and wave filter.

Background

In the field of the existing 5G communication passive devices, a pressure riveting nut or a hexagon nut which is riveted with a cover plate of a filter is commonly used to be matched with a tuning screw rod and a cavity of the filter so as to realize the electronic performance parameters of the filter.

And when using traditional pressure to rivet the apron of nut or hexagon nut and wave filter fixedly, the apron need bear the heavy load, so, the apron just need adopt the material that this type of aluminum alloy can bear the heavy load for the material selection scope of apron is less, and apron thickness reaches certain thickness in order to bear the heavy load, like this, can make the volume and the weight of apron too big, is unfavorable for satisfying the demand to miniaturized wave filter development.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a weldable nut and a filter, so as to solve the technical problems that the material selection range of the cover plate is small, the thickness of the cover plate is too large, and the size and the weight of the cover plate are too large due to the fact that the traditional press riveting nut or the hexagon nut is used for fixing the cover plate of the filter in the prior art.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a can weld nut for install on the apron on the filter cavity, be provided with on the apron with the inside through-hole that is linked together of filter cavity, can weld nut includes:

the main body is of a hollow structure;

a connection part disposed at an outer circumference of the body, the connection part dividing the body into a first end exposed to an outside of the cover plate and a second end inserted into the through hole of the cover plate; and

the welding part is arranged on one side, facing the cover plate, of the connecting part, and when the second end part of the main body is inserted into the through hole, the welding part is abutted against the cover plate, the welding part is melted after being heated, and the connecting part and the cover plate are welded and fixed into a whole after being cooled and solidified.

Preferably, the welding part is arranged around one circle on one side of the connecting part facing the cover plate.

Preferably, the welding portion is provided in plurality, and the welding portions are provided at intervals on a side of the connecting portion facing the cover plate.

Preferably, one side of the connecting part facing the cover plate is provided with a containing groove for containing the redundant melted welding part.

Preferably, the outer diameter of the second end portion is the same as the inner diameter of the through hole.

Preferably, the connecting portion is provided integrally with the main body.

Preferably, the length of the second end is the same as the depth of the through hole in the cover plate, so that the lower edge of the welded second end inserted into the through hole is on the same horizontal line with the lower edge of the cover plate close to the filter cavity.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing a filter comprising the weldable nut of any one of the above, the weldable nut comprising one or more; the filter further comprises:

the filter comprises a filter cavity, wherein one or more resonant cavities are arranged in the filter cavity;

the cover plate is covered on the filter cavity, one or more through holes for mounting the weldable nuts are formed in the cover plate, the through holes are arranged in one-to-one correspondence with the resonant cavities, and the weldable nuts are in one-to-one correspondence with the through holes; and

and the tuning screw rod penetrates through the hollow structure of the main body of the weldable nut and then extends into the resonant cavity to perform tuning.

Preferably, the cover plate is any one of a PCB plate, an aluminum alloy plate or a copper plate.

Preferably, the thickness of the cover plate is less than or equal to 0.8 mm.

The utility model discloses technical scheme's beneficial effect: be different from prior art, the utility model provides an install nut that can weld on setting up the apron on the wave filter cavity, the nut that can weld includes the main part, set up in the connecting portion of main part periphery and set up in the welding part of connecting portion towards one side of apron, the connecting portion falls into the main part and exposes at the outside first end of apron and insert the second end that sets up in the through-hole on the apron, when the second end of main part inserts in the through-hole, the welding part supports and holds on the apron, the welding part heats the back and melts, and with connecting portion and apron welded fastening as an organic whole after the cooling solidification, be about to nut and apron weld in an organic whole, so set up, need not to extrude the apron when fixation nut, make the material selection range of apron enlarge, the apron thickness can set up littleer, the volume and the weight of wave filter can be little.

Drawings

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

Fig. 1 is a schematic cross-sectional view of a weldable nut and a filter according to the present invention;

FIG. 2 is a schematic cross-sectional view of the weldable nut and the cover plate of the present invention after welding;

FIG. 3 is a schematic structural view of the weldable nut of the present invention;

FIG. 4 is a schematic structural view of the weldable nut of the present invention before welding with the cover plate;

fig. 5 is an enlarged view of a point a in fig. 1.

The filter comprises a filter 1, a filter 2, a weldable nut 21, a main body 211, a first end part 212, a second end part 22, a connecting part 221, an accommodating groove 23, a welding part 3, a filter cavity 4, a cover plate 41, a through hole 41 and a tuning screw 5.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The invention is further described below with reference to the drawings and exemplary embodiments, examples of which are illustrated in the drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The specific structure of the solderable nut 2 and the filter 1 in one embodiment will be mainly described below.

Referring to fig. 1, 2 and 5, in an embodiment, the weldable nut 2 is configured to be mounted on a cover plate 4 on a filter cavity 3, the cover plate 4 is provided with a through hole 41 communicating with the inside of the filter cavity 3, the weldable nut 2 includes a main body 21, a connecting portion 22 and a welding portion 23, the main body 21 is a hollow structure, the connecting portion 22 is disposed at the periphery of the main body 21, the connecting portion 22 divides the main body 21 into a first end portion 211 exposed outside the cover plate 4 and a second end portion 212 inserted into the through hole 41 of the cover plate 4, the connecting portion 23 is disposed at a side of the connecting portion 22 facing the welding portion 4 of the cover plate, and when the second end portion 212 of the main body 21 is inserted into the through hole 41, the welding portion 23 is abutted against the cover plate 4, the welding portion 23 is melted after being heated, and the connecting portion 22 and the cover plate 4 are welded and fixed, need not to extrude apron 4 when fixation nut, only need adopt welded mode, just can be fixed in the nut on apron 4, production efficiency is high, and above-mentioned structure can make the material selection range of apron 4 enlarge, and the thickness of apron 4 can set up littleer.

In an embodiment, referring to fig. 3 and 5, the welding portion 23 is disposed around the connecting portion 22 on a side facing the cover plate 4, so as to weld and fix the connecting portion 22 and the cover plate 4 into a whole.

In another embodiment, the welding portion 23 is provided in plurality, and the plurality of welding portions 23 are provided at intervals on the side of the connecting portion 22 facing the cover plate 4 to perform multi-spot welding fixing of the connecting portion 22 and the cover plate 4.

In one embodiment, a side of the connecting portion 22 facing the cover plate 4 is provided with a receiving groove 221 for receiving the excessive melted welding portion 23. More specifically, in the present embodiment, when the welding portion 23 is melted by heating, the excessive melted welding portion 23 flows into the accommodating groove 221, and the connecting portion 22 and the cover plate 4 are welded and fixed integrally after being cooled and solidified.

Further, in another embodiment, a small amount of welding material is coated on the cover plate 4, and when the second end 212 of the main body 21 is inserted into the through hole 41 formed in the cover plate 4, the welding material is heated and melted, and a part of the welding material flows into the receiving groove 221, and forms a column structure after being cooled and solidified, so as to lock the positions of the weldable nut 2 and the cover plate 4, and prevent the weldable nut 2 and the cover plate 4 from sliding relatively, so that the welding structure is more stable.

Further, in one embodiment, the solder material may be, but is not limited to, solder paste.

In one embodiment, referring to fig. 1 and 2, the outer diameter of the second end portion 212 is the same as the inner diameter of the through hole 41 to increase the stability of the assembly of the weldable nut 2 with respect to the cover plate 4.

In one embodiment, referring to fig. 1 to 3, the connecting portion 22 is integrally formed with the main body 21 to facilitate the integral processing of the weldable nut 2.

In one embodiment, referring to fig. 2, the length of the second end 212 is the same as the depth of the through hole 41 on the cover plate 4, so that the lower edge of the welded second end 212 inserted into the through hole 41 is on the same horizontal line with the lower edge of the cover plate 4 near the filter cavity 3.

Referring to fig. 1, an embodiment of the present invention further provides a filter 1, including the weldable nut 2 disclosed above, where the weldable nut 2 includes one or more than one; more specifically, the filter 1 further includes a filter cavity 3, a cover plate 4 and a tuning screw 5, wherein one or more resonant cavities (not shown in the figure) are arranged in the filter cavity 3; the cover plate 4 is covered on the filter cavity 3, one or more through holes 41 for mounting the weldable nut 2 are arranged on the cover plate 4, the through holes 41 are arranged in one-to-one correspondence with the resonant cavity, and the weldable nut 2 is arranged in one-to-one correspondence with the through holes 41; the tuning screw 5 extends into the cavity for tuning after passing through the hollow structure of the body 21 of the weldable nut 2.

Further, in the present embodiment, the tuning screw 5 is in threaded fit with the hollow structure of the main body 21 of the weldable nut 2, and by rotating the tuning screw 5, the tuning screw 5 can be driven to move along the axial direction of itself, so that the length of the tuning screw 5 extending into the resonant cavity can be adjusted for tuning.

Further, in one embodiment, the tuning screws 5 include one or more, and the tuning screws 5 are in one-to-one correspondence with the weldable nuts 2 to enhance the tuning capability of the filter 1.

In an embodiment, the weldable nut 2 and the cover plate 4 are welded and fixed together by the above welding method, and the press riveting is not required, so that the cover plate 4 may be a PCB (Printed circuit boards), an aluminum alloy plate, or a copper plate with a smaller stress. The thickness of the cover plate 4 is less than or equal to 0.8mm, for example, in one embodiment, with a cover plate 4 of 0.5mm to 0.8mm, the thickness of the cover plate 4 is greatly reduced, thereby reducing the weight and volume of the entire filter 1.

The utility model provides a nut 2 and wave filter 1 can weld, please refer to fig. 1 to 5 together, adopt the welded mode will weld nut 2 and the apron 4 welding fixation of wave filter 1 as an organic whole, and cooperate with resonant cavity and tuning screw 5 in the wave filter cavity 3 of wave filter 1, in order to tune, so set up, need not to extrude apron 4 when the fixation nut, only need to adopt the welded mode, just can be fixed nut and apron 4 in batches, and apron 4 can choose the material that does not bear the weight of, for example apron 4 can be PCB board, aluminum alloy plate or copper plate, the thickness of apron 4 can be thinner a bit simultaneously, so both reduced the volume and the weight of wave filter 1, also can greatly improved the performance of wave filter 1, reduced manufacturing cost, in addition, the diameter that can weld nut 2 can set up to be smaller than ordinary hexagon nut and rivet nut diameter, the space is saved, the cavity arrangement of the miniaturized filter 1 is facilitated, the miniaturization of the whole product and the high-frequency expansion of electronic performance indexes are realized, and the small-sized 5G filter can be widely applied to the field of small-sized 5G filters.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. A weldable nut for mounting on a cover plate on a filter cavity, the cover plate being provided with a through hole communicating with the inside of the filter cavity, the weldable nut comprising:

the main body is of a hollow structure;

2. The weldable nut of claim 1, wherein the weld is disposed around a circle on a side of the connecting portion facing the cap plate.

3. The weldable nut of claim 1, wherein the weld is provided in plurality, and the plurality of welds are spaced apart on a side of the connecting portion facing the cap plate.

4. The weldable nut of claim 1, wherein a side of the connecting portion facing the cap plate is provided with a receiving groove for receiving an excess of the melted-down weld.

5. The weldable nut of claim 1, wherein an outer diameter of the second end is the same as an inner diameter of the through-hole.

6. The weldable nut of claim 1, wherein the connecting portion is integrally provided with the body.

7. The weldable nut of claim 1, wherein the second end has a length equal to the depth of the through hole in the cover plate, such that the lower edge of the welded second end inserted into the through hole is level with the lower edge of the cover plate adjacent to the filter cavity.

8. A filter, comprising the weldable nut of any one of claims 1 to 7, the weldable nut comprising one or more; the filter further comprises:

9. The filter according to claim 8, wherein the cover plate is any one of a PCB plate, an aluminum alloy plate, or a copper plate.

10. The filter of claim 8, wherein the thickness of the cover plate is less than or equal to 0.8 mm.