KR102588796B1 - Cavity filter - Google Patents

Abstract

The present invention relates to a cavity filter, wherein a resonant element is provided at a predetermined distance apart from an external member provided with an electrode pad on one surface, and the electrode pad of the external member is electrically connected to the resonant element, which exists at the predetermined distance. It is possible to eliminate assembly tolerances and at the same time, it includes a terminal portion with a structure that prevents interruption of electrical flow between the electrode pad and the resonance element, thereby efficiently absorbing assembly tolerances that occur through assembly design and reducing electrical flow. It provides the advantage of preventing performance degradation of the antenna device by preventing disconnection.

Description

Cavity filter {CAVITY FILTER}

The present invention relates to a cavity filter, and more specifically, to a cavity filter for a massive MIMO antenna in which the connector fastening structure between the filter and the printed circuit board is improved in consideration of assemblyability and size.

The content described in this section simply provides background information for this embodiment and does not constitute prior art.

MIMO (Multiple Input Multiple Output) technology is a technology that dramatically increases data transmission capacity by using multiple antennas. The transmitter transmits different data through each transmit antenna, and the receiver transmits the transmitted data through appropriate signal processing. It is a spatial multiplexing technique that distinguishes. Therefore, as the number of transmitting and receiving antennas increases simultaneously, channel capacity increases, allowing more data to be transmitted. For example, if the number of antennas is increased to 10, about 10 times the channel capacity will be secured using the same frequency band compared to the current single antenna system.

4G LTE-advanced uses up to 8 antennas, and products equipped with 64 or 128 antennas are currently being developed in the pre-5G stage, and base station equipment with a much larger number of antennas is expected to be used in 5G. , This is called Massive MIMO technology. While the current cell operation is 2-Dimension, when Massive MIMO technology is introduced, 3D-Beamforming becomes possible, so Massive MIMO technology is also called FD-MIMO (Full Dimension).

In Massive MIMO technology, as the number of antenna elements increases, the number of transceivers and filters also increases. Additionally, as of 2014, there are more than 200,000 base stations installed nationwide. In other words, a cavity filter structure that minimizes mounting space and is easy to mount is required, and an RF signal line connection structure that provides the same filter characteristics even after the individually tuned cavity filter is mounted on the antenna is required.

The RF filter with a cavity structure is equipped with a resonator composed of a resonating rod, which is a conductor, inside a box structure formed of a metallic conductor, allowing only the electromagnetic field of the natural frequency to exist, and has the characteristic of only passing through the ultra-high frequency characteristic frequency due to resonance. This cavity-structured bandpass filter has low insertion loss and is advantageous for high output, so it is widely used as a filter for mobile communication base station antennas.

The purpose of the present invention is to provide a cavity filter that has a slimmer and more compact structure and has an RF connector built into the body in the thickness direction.

In addition, the object of the present invention is to provide a cavity filter with an assembly method that can minimize the accumulated amount of assembly tolerance that occurs when assembling multiple filters and an RF signal connection structure that is easy to mount and maintains uniform frequency characteristics of the filter. In providing.

Additionally, the purpose of the present invention is to provide a cavity filter that, in the case of a separate RF pin type, allows relative movement while preventing signal loss from occurring by adding lateral tension.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, a cavity filter according to an embodiment of the present invention includes a resonance element provided at a predetermined distance apart from an external member provided with an electrode pad on one surface, and an electrode pad of the external member and the resonance element being electrically connected. , and includes a terminal portion having a structure capable of eliminating the assembly tolerance existing at the predetermined distance and preventing interruption of electrical flow between the electrode pad and the resonance element.

Here, the terminal unit includes one terminal and the other terminal that are mutually extended and contractible within the terminal insertion hole by the assembly force provided by the assembler, and the one side terminal is configured to eliminate the assembly tolerance existing within the terminal insertion hole. It may further include an elastic member that elastically supports at least one of the terminal and the other terminal.

In addition, the terminal unit includes one terminal and the other terminal that are mutually extended and contractible within the terminal insertion hole by the assembling force provided by the assembler, and the one terminal and the other terminal move within the terminal insertion hole. When tension is applied in a mutually lateral direction, a portion of one of the terminals and the other terminal may include a tension cut portion.

Additionally, the terminal portion may be provided as a single terminal portion that is elastically deformed in part by the assembling force provided by the assembler.

In addition, the terminal unit includes one terminal and the other terminal, one of which is accommodated in the other within the terminal insertion hole and can be stretched and contracted by the assembling force provided by the assembler, and the one terminal and the other terminal are provided. At least one of them may elastically deform itself to be elastically supported toward the electrode pad by the assembly force.

In addition, the terminal unit includes one terminal and the other terminal that are mutually extended and contractible within the terminal insertion hole by the assembling force provided by the assembler, and the terminal unit is disposed between the one terminal and the other terminal. However, it may include an elastic member provided as a washer spring including a fixed end fixed to the other terminal and a support end obliquely extended from the fixed end toward the electrode pad.

Additionally, the elastic member and the one terminal may be formed integrally.

In addition, the terminal unit includes one terminal and the other terminal that are mutually extended and contractible within the terminal insertion hole by the assembly force provided by the assembler, and the terminal unit is provided with a portion of the one terminal cut. However, it may include an elastic cut piece that applies an elastic force upward with respect to the other terminal and a side cut piece that is elastically supported outward with respect to the inner surface of the other terminal.

In addition, the terminal unit includes one terminal and the other terminal that are mutually extended and contractible within the terminal insertion hole by the assembling force provided by the assembler, and some of the one terminals include some of the other terminals. A tension incision may be formed to spread outward as it is accommodated.

According to the present invention, the RF connector is embedded in the body in the thickness direction, enabling a slimmer and more compact structural design, and an assembly method that minimizes the accumulated amount of assembly tolerances that occur when assembling multiple filters and facilitates mounting. It is possible to design an RF signal connection structure that maintains the frequency characteristics of the filter uniformly while allowing relative movement, and by adding lateral tension, a stable connection is possible, preventing deterioration in antenna performance.

1 is a diagram schematically illustrating the stacked structure of an exemplary Massive MIMO antenna.
Figure 2 is a cross-sectional view showing a state in which a cavity filter according to an embodiment of the present invention is stacked between an antenna board and a control board;
Figure 3 is a plan perspective view of the structure of a cavity filter according to an embodiment of the present invention viewed from the bottom side;
Figure 4 is an exploded perspective view showing a partial configuration of the cavity filter according to the first embodiment;
Figures 5a and 5b are cross-sectional views showing assembly tolerance absorption before and after assembly;
Figure 6 is a perspective view showing the terminal part of the structure of Figure 4;
7A to 7C are an exploded perspective view, a cross-sectional view, and a perspective view showing the terminal portion of the cavity filter according to the second embodiment;
8A to 8C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a third embodiment;
9A to 9C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a fourth embodiment;
10A to 10C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a fifth embodiment;
11A to 11C are an exploded perspective view, a cross-sectional view, and a perspective view showing the terminal portion of the cavity filter according to the sixth embodiment;
12A to 12C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a seventh embodiment;
13A to 13C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the eighth embodiment;
14A to 14C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the ninth embodiment;
15A to 15C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the tenth embodiment;
16A to 16C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 11th embodiment;
17A to 17C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twelfth embodiment;
18A to 18C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 13th embodiment;
19A to 19C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the fourteenth embodiment;
20A to 20C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 15th embodiment;
21A to 21C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the sixteenth embodiment;
Figures 22a to 22c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 17th embodiment;
23A to 23C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 18th embodiment;
Figures 24a to 24c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 19th embodiment;
25A to 25C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twentieth embodiment;
26A to 26C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 21st embodiment;
27A to 27C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 22nd embodiment;
28A to 28C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 23rd embodiment;
29A to 29C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twenty-fourth embodiment;
30A to 30C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 25th embodiment;
31A to 31C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 26th embodiment;
32A to 32C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 27th embodiment;
33A to 33C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 28th embodiment;
Figures 34a to 34c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 29th embodiment;
35A to 35C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 30th embodiment;
36A to 36C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 31st embodiment;
Figures 37a to 37c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 32nd embodiment;
Figures 38a to 38c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 33rd embodiment;
Figures 39a to 39c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 34th embodiment;
40A to 40C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 35th embodiment;
Figures 41A to 41C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the thirty-sixth embodiment.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

Figure 1 is a diagram schematically illustrating the stacked structure of an exemplary Massive MIMO antenna.

Figure 1 only shows an exemplary external appearance of an antenna device 1 in which an antenna assembly including a cavity filter 7 is built according to an embodiment of the present invention, and does not limit the external appearance when actually stacked.

The antenna device 1 includes a housing 2 in which a heat sink is formed, and a radome 3 coupled to the housing 2. An antenna assembly may be built between the housing (2) and the radome (3).

A power supply unit (PSU) 4 is coupled to the lower part of the housing 2, for example, through a docking structure, and the power supply unit 4 operates the communication components provided in the antenna assembly. Provides operating power for

Typically, an antenna assembly consists of a cavity filter (7) arranged on the back of an antenna board (5) on which a plurality of antennas (6) are arranged on the front, as many as the number of antennas, and the related PCB boards (8) are sequentially stacked. It has a structure. The cavity filters 20 and 7 can be individually tuned and verified in detail to have frequency characteristics that meet specifications before mounting. It is desirable that this tuning and verification process be carried out quickly in an environment with the same characteristics as the mounted state.

Figure 2 is a cross-sectional view showing a state in which a cavity filter according to an embodiment of the present invention is stacked between an antenna board and a control board. Referring to FIG. 2, since the typical RF connector 90 shown in FIG. 1 can be eliminated, the connection becomes easier and an antenna structure with a lower height profile can be provided. In addition, RF connections are provided on both sides in the height direction, and are connected to the cavity filter 20 according to an embodiment of the present invention, so that RF connection is possible even if vibration and thermal deformation occurs in the antenna board 5 or PCB board 8. This has the advantage that there is no change in frequency characteristics as it remains the same.

Figure 3 is a plan perspective view of the structure of a cavity filter according to an embodiment of the present invention as seen from the bottom.

Referring to FIG. 3, the cavity filter 20 according to an embodiment of the present invention includes a resonant element 31 (reference numeral 31 below in FIG. 4) and a first case (not indicated by reference numeral) with a hollow interior. ), a second case (not shown) covering the first case, a terminal portion provided in the height direction of the cavity filter 20 on both sides in the longitudinal direction of the first case (' among the numbers of 10 in the drawings below) (see reference numeral 40'), a filter module (30) including assembly holes provided on both sides of the terminal portion 40, in the drawings below in FIG. 4, except for numbers of 100 or more to distinguish each embodiment, ' (Indicated by adding 30').

The terminal portion 40 penetrates the terminal insertion hole 25 provided in the first case and electrically connects the electrode pad of the external member 8, for example, the antenna board or PCB board 8, to the resonance element 31.

The cavity filter 20 according to the present invention is provided in various embodiments as described later, depending on the configuration of the terminal portion 40 (integrated or separate type), the shape for adding lateral tension, which will be described later, and the specific configuration for absorbing assembly tolerances. It can be implemented.

More specifically, the terminal portion 40 includes an integrated filter formed integrally from one end connected to (or in contact with) the electrode pad of the PCB board or antenna board to the other end connected to (or in contact with) the resonant element 31, and the terminal portion ( Any point between one end and the other end of 40) can be divided into separate filters.

In the case of an integrated filter, in order to eliminate assembly tolerances, a portion of the terminal portion 40 is made of an elastic material that is elastically deformed when a predetermined assembly force is applied. However, the integrated filter in which the terminal portion 40 is formed as one piece does not require a separate shape design for adding side tension since interruption of electrical flow is not expected between one end and the other end.

On the other hand, in the case of a separate filter, the assembly tolerance is resolved by moving the separated one side terminal 50 and the other terminal 60 to overlap each other by the above-described predetermined assembly force, so that the entire length is contractable, A separate elastic member 80 is provided so that the entire length is restored when the assembly force is removed. However, since the terminal portion 40 is provided separately into one terminal 50 and the other terminal 60, there is a risk of interruption of electrical flow when moved to overlap each other, so one terminal 50 and the other terminal Any one of (60) may be provided with an elastic body, or a separate shape change may be required to add lateral tension.

Here, the term 'side tension' refers to the tension between one terminal 50 and the other terminal 60 in order to prevent interruption of electrical flow between the one terminal 50 and the other terminal 60, as described above. It can be defined as a force transmitted from one thing to another in a direction different from the longitudinal direction.

Meanwhile, due to the characteristics of the antenna device, when designing the shape change of the above-described terminal portion 40, impedance matching design within the above-described terminal insertion hole 25 must be done in parallel, but the implementation of the cavity filter 20 according to the present invention In the detailed description of the examples, it will be described on the premise that the impedance within the terminal insertion hole 25 is matched.

One. Terminal part (40) Lateral according to self-incision tension grant

Figure 4 is an exploded perspective view showing a partial configuration of the cavity filter according to the first embodiment, Figures 5a and 5b are cross-sectional views showing assembly tolerance absorption before and after assembly, and Figure 6 is a terminal portion 40 in the structure of Figure 4. This is a perspective view showing .

As shown in FIGS. 4 to 6, the cavity filter 20 according to the first embodiment of the present invention is spaced a predetermined distance apart from the external member 8 having an electrode pad (not indicated) on one surface. The electrode pad of the provided resonance element 31 and the external member 8 is electrically connected to the resonance element 31, and at the same time, it is possible to eliminate the assembly tolerance that exists at the predetermined distance, and at the same time, the electrode pad and the resonance element are connected to each other electrically. It includes a terminal portion 40 having a structure capable of preventing interruption of the flow.

Here, as shown in FIG. 2, the external member 8 is an antenna board with antenna elements arranged on the other side or an amplifier (Power Amplifier, PA), digital board, and TX Calibration. It may be any one of the PCB boards provided as one-board.

Hereinafter, as shown in FIG. 3, the external configuration constituting the embodiments of the cavity filter 20 according to the present invention is not divided into a first case and a second case, but a filter body provided with a terminal insertion hole 25 ( It is collectively referred to as 21) and is designated by reference numeral 21.

As shown in FIGS. 4 to 5B, the filter body 21 may be provided with a terminal insertion hole 25 in a hollow form. The shape of the terminal insertion hole 25 may have different shapes depending on the impedance matching design applied to a number of embodiments described later.

A washer installation portion 27 may be grooved and formed on one surface of the filter body 21, particularly on one surface of the terminal portion 40, which will be described later, on which one terminal 50 is provided. The cavity filter 20 according to the first embodiment of the present invention may further include a star washer 90 installed and fixed to the washer installation portion 27. Hereinafter, the description will be made on the assumption that the star washer 90 is provided in common not only in the first embodiment of the present invention, but also in all embodiments of the present invention described later. Accordingly, even if there is no specific description of the star washer 90 in other embodiments other than the first embodiment, it should be understood as including this.

The star washer 90 has a ring-shaped fixed end (not shown) fixed to the washer installation portion 27, and extends upward from the fixed end toward the center of the electrode pad side of the antenna board or PCB board 8. It may include a plurality of inclinedly formed support ends.

When assembling embodiments of the cavity filter 20 according to the present invention to the antenna board or PCB board 8 by an assembler, the star washer 90 is connected to a fastening member not shown through the above-described assembly hole. A plurality of support ends can be supported on one side of the antenna board or PCB board 8 to add elastic force to the fastening force. The addition of elastic force to the plurality of support ends serves to eliminate the assembly tolerance that exists between the antenna board or PCB board 8 of the embodiments of the cavity filter 20 according to the present invention.

In the cavity filter 20 according to the first embodiment of the present invention, the terminal portion 40 includes one terminal 50 in contact with the electrode pad of the external member 8, as shown in FIGS. 4 to 6, It may include the other terminal 60 fixed to the solder hole 32 of the resonant element 31.

Here, one of the one side terminal 50 and the other terminal 60 may be inserted into the other, and when assembled, a portion of each end may be arranged to overlap each other by a predetermined length.

The cavity filter 20 according to the first embodiment of the present invention may have a structure in which the upper side of the other terminal 60 is inserted into the lower side of the one terminal 50 in the drawing (see FIGS. 4 to 5b). To this end, the lower end of one terminal 50 may be provided in the form of a hollow tube with an empty interior so that the upper end of the other terminal 60 can be inserted.

When the terminal portion 40 provided with one terminal 50 and the other terminal 60 is installed in the terminal insertion hole 25, a dielectric is placed on the outside of the terminal portion 40 for impedance matching within the terminal insertion hole 25. (70) can be inserted. The dielectric 70 may be made of Teflon. However, the material of the dielectric 70 is not limited to Teflon, and any material having a dielectric constant capable of impedance matching within the terminal insertion hole 25 can be replaced.

The dielectric 70 may be injection molded integrally with one terminal 50 of the terminal portion 40. When the dielectric 70 is injection-molded integrally with the one-side terminal 50, a terminal through-hole 71 through which the one-side terminal 50 passes may be formed.

The one-side terminal 50 may be provided to be movable in the vertical direction in the drawing together with the dielectric 70 within the terminal insertion hole 25 when an assembler provides assembling force. To this end, a stopping end 54 having a larger diameter than the terminal through hole 71 formed in the dielectric 70 may be formed at the upper end 51 of one terminal 50.

In addition, the lower end 52 of one terminal 50 into which the upper end of the other terminal 60 is inserted may be provided with a plurality of tension cutouts 55 formed elongated in the vertical direction. The tension cut portion 55 may be formed by cutting the lower end portion 52 of one terminal 50, which is provided in the form of a hollow tube, into multiple pieces. The tension cutout 55 serves to add side tension so that the lower end 52 of one terminal 50 is brought into close contact with the outer periphery of the upper end 61 of the other terminal 60. The addition of side tension by the tension cut portion 55 can prevent the electrical flow of the two separated terminal portions 40 from occurring in advance.

Meanwhile, the cavity filter 20 according to the first embodiment of the present invention is disposed in the terminal insertion hole 25, and has an O-ring interposed on the outer peripheral surface of the dielectric 70 to absorb the assembly tolerance existing in the terminal insertion hole 25. It may further include unit 80.

The O-ring portion 80 is disposed on the outer peripheral surface of the dielectric 70 and in the ring installation space 29 formed to form a predetermined space between the inner surface of the terminal insertion hole 25 and the filter body 21. As a part of , it may be disposed to be supported on a ring support end (not indicated) protruding toward the terminal insertion hole 25.

As shown in FIG. 5b, the O-ring portion 80 is assembled so that the contact portion 53, which is the tip of one terminal 50 of the terminal portion 40, is in close contact with the electrode pad side of the external member 8. After being compressed and deformed within the ring installation space 29 while eliminating the above-mentioned assembly tolerance, an elastic force is provided to the dielectric 70 so that the contact portion 53 of one terminal 50 is continuously brought into contact with the electrode pad. It plays a role.

Meanwhile, the tip 61 of the other terminal 60 of the terminal portion 40 is provided with a sharp end so as to be easily inserted into the hollow tube-shaped interior of the one terminal 50, and the lower end of the other terminal 60 ( 62) may be fixed by solder to the solder hole 32 formed in the above-described resonance element 31.

As shown in FIGS. 5A and 5B, when no assembly force is provided, the contact portion 53 protrudes higher than the support end of the star washer 90. can be formed. For reference, the smaller the contact area of the contact portion 53 of one terminal 50 that is in contact with the antenna board or PCB board 8, the better.

The assembly tolerance absorption process according to the assembly of the cavity filter 20 according to the first embodiment of the present invention configured as described above will be described with reference to the attached drawings (in particular, FIGS. 5A and 5B) as follows.

First, as referred to in FIG. 5A, the cavity filter 20 according to the first embodiment of the present invention is brought into close contact with one surface of the antenna board or PCB board 8 provided with electrode pads, and then a fastening member (not shown) is attached to the cavity filter 20 according to the first embodiment of the present invention. A predetermined fastening force is transmitted to the cavity filter 20 through the operation of fastening to the assembly hole.

Then, as shown in FIG. 5B, the distance between the antenna board or PCB board 8 and the cavity filter 20 according to the first embodiment of the present invention is reduced, and at the same time, the support end of the star washer 90 is As the shape is deformed by the fastening force, the assembly tolerance existing between the cavity filter 20 and the antenna board or PCB board 8 according to the first embodiment of the present invention is primarily absorbed.

At the same time, one terminal 50 of the terminal portion 40 is pressed by one surface of the antenna board or PCB board 8 so that it moves a predetermined distance toward the other terminal 60 within the terminal insertion hole 25 along with the dielectric 70. As the O-ring portion 80 is also pressed, the assembly tolerance existing in the terminal insertion hole 25 of the cavity filter 20 according to the first embodiment of the present invention is secondarily absorbed.

At this time, the one terminal 50 and the other terminal 60 have a side tension with respect to the lower end of the one terminal 50 with respect to the upper end of the other terminal 60 inserted into the inside of the hollow tube shape by the tension incision 55. With this addition, since interruption of electrical flow can be prevented, deterioration of signal performance of the cavity filter 20 according to the first embodiment of the present invention can be prevented.

Below, the cavity filter 20 according to various embodiments 20 of the present invention will be described in order. However, compared to the already described first embodiment, the description will focus on the distinguishing differences and technical features, and contents that are not explained separately will be explained on the assumption that they are the same as the first embodiment.

7A to 7C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to a second embodiment.

As shown in FIGS. 7A to 7C, the cavity filter 20 according to the second embodiment of the present invention further includes a reinforcement plate 195 to reinforce the dielectric 170, compared to the first embodiment. It can be included.

A terminal through-hole 171 through which the other terminal 160 passes is formed in the reinforcement plate 195, and the other terminal 160 may be fixed to the terminal through-hole 171 of the reinforcement plate 195.

As shown in FIG. 7B, the O-ring portion 180 may be supported on the upper surface of the reinforcement plate 195. In addition, the reinforcement plate 195 restricts the downward movement because the lower end of the dielectric 170 is caught on the upper surface when the dielectric 170 is moved downward along with one terminal 150 by the assembly force provided by the assembler. It plays a reinforcing role as much as possible.

That is, in the case of the cavity filter 20 of the first embodiment, the dielectric 170 moved by the assembly force is supported within the terminal insertion hole 25 only through the O-ring portion, but in the case of the cavity filter 20 of the second embodiment may serve to indirectly reinforce the dielectric 170 and the O-ring portion 180 by directly supporting the dielectric 170 by the reinforcement plate 195.

Meanwhile, as distinct from the cavity filter 20 of the first embodiment, the O-ring portion 180 of the second embodiment may be provided with two O-rings 180a and 180b stacked vertically. Since the two O-rings 180a and 180b are stacked vertically, there is an advantage that the amount of assembly tolerance absorbed is further increased compared to the cavity filter 20 of the first embodiment provided with one O-ring 80. In addition, the cavity filter 20 according to the second embodiment can be adopted in that the thickness of each of the two O-rings 180a and 180b is smaller than that of the O-ring portion 80 of the cavity filter 20 according to the first embodiment. .

In addition, the cavity filter 20 of the second embodiment is distinguished from the cavity filter 20 of the first embodiment, and in the cavity filter 20 of the first embodiment, the shape of the upper end 51 of one terminal 50 While the above-described contact portion 53 has a conical shape so that the contact area can be minimized as much as possible, in the cavity filter 20 according to the second embodiment, the contact portion 153 formed on one terminal 150 The contact area is the same as that of the first embodiment, but the shape of the upper end 151 of one terminal 150 is such that a hemispherical contact portion 53 protrudes from the upper surface of a circular plate (not shown). You can.

8A to 8C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to a third embodiment.

As compared to the cavity filter 20 according to the first embodiment, the cavity filter 20 according to the third embodiment of the present invention, as shown in FIGS. 8A to 8C, has the other terminal provided in the form of a hollow tube. A portion of the lower portion 252 of one terminal 250 may be inserted into the upper portion of 260 , and a tension cut portion 264 may be formed in the upper portion 261 of the other terminal 260.

Similarly, in the cavity filter 20 according to the third embodiment, when the assembly force of the assembler is provided, the dielectric 270 and one terminal 250 are pressed downward and secondarily absorb the assembly tolerance within the terminal insertion hole 25. In addition, interruption of electrical flow can be prevented through the side tension provided by the tension cutout 264 formed in the other terminal 260.

However, the shape of the upper end including the contact portion 253 of one terminal 250 of the terminal portion 240 of the cavity filter 20 according to the third embodiment is the same as that of the second embodiment.

9A to 9C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to a fourth embodiment.

As compared to the cavity filter 20 according to the third embodiment, the cavity filter 20 according to the fourth embodiment of the present invention, as shown in FIGS. 9A to 9C, has an O-ring portion 380 as a second The same configuration as that of the cavity filter 20 (180) according to the embodiment was adopted. That is, in the cavity filter 20 according to the fourth embodiment, the O-ring portion 380 is provided with two O-rings 380a and 380b stacked vertically, thereby taking advantage of the cavity filter 20 according to the second embodiment. Accepted.

Other remaining configurations were the same as those in the third embodiment.

2. In the elastic member (80) Elimination of assembly tolerances

10A to 10C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to a fifth embodiment.

As compared to the cavity filter 20 according to the first to fourth embodiments, the cavity filter 20 according to the fifth embodiment of the present invention, as shown in FIGS. 10A to 10C, has one terminal ( 450 has the shape of a single rod extending up and down, and may be provided so that a portion of one terminal 450 is inserted into the upper end 461 of the other terminal 460, which has a hollow tube shape.

The upper end 461 of the other terminal 460 may be provided with a tension cutout 464 in the same manner as the third and fourth embodiments. Here, the cavity filter 20 according to the fifth embodiment is different from the third and fourth embodiments by having a plurality of elastic elastics in the elastic ring installation groove 465 formed on the outer surface of the other terminal 460. Rings 480 may be stacked vertically. The elastic ring adds lateral tension by compressing the outer peripheral surface of the other terminal 60 on which the tension cutout is formed, thereby preventing interruption of electrical flow between the outer peripheral surface of one terminal 50 that moves up and down inside. It plays a role.

In addition, the cavity filter 20 according to the fifth embodiment of the present invention is disposed inside the other terminal 460 in the form of a hollow tube and elastically supports one terminal 50 that moves in the vertical direction by providing an assembly force. It may further include an elastic spring 457. The elastic spring 457 can replace the role of the O-ring parts 80, 180, 280, and 380 described in detail in the cavity filter 20 according to the first to fourth embodiments. That is, the elastic spring 457 can perform the function of secondarily absorbing the assembly tolerance existing in the terminal insertion hole 25 by elastically supporting one terminal 50 upward when the assembly force of the assembler is provided. there is.

In this way, the cavity filter 20 according to the fifth embodiment according to the present invention, like various embodiments to be described later, is interposed between one terminal 450 and the other terminal 460, and the assembly force provided by the assembler In response, the one-side terminal 450 can be elastically supported toward the electrode pad provided on the antenna board or PCB board 8, thereby secondarily eliminating the assembly tolerance existing within the terminal insertion hole 25.

11A to 11C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to a sixth embodiment.

As shown in FIGS. 11A to 11C, the cavity filter 20 according to the sixth embodiment of the present invention is provided in the form of a hollow tube, compared to the cavity filter 20 according to the fifth embodiment described above. A plurality of elastic beads 580 may be arranged to be stacked up and down inside the upper part 561 of the other terminal 560.

The plurality of elastic beads 580 replace the elastic spring 457 in the cavity filter 20 according to the fifth embodiment. Accordingly, the function of the plurality of elastic beads 580 can be interpreted in the same way as the elastic spring 457.

In addition, the cavity filter 20 according to the sixth embodiment may further include a dielectric 570 inserted into the terminal insertion hole 25, compared to the cavity filter 20 according to the fifth embodiment. Here, the dielectric 70 performs the same function as the cavity filter 20 according to the first to fourth embodiments in that any material having a dielectric constant for impedance matching within the terminal insertion hole 25 is sufficient. However, the cavity filter 20 according to the fifth embodiment is not provided with an elastic ring 480 for adding lateral tension through the tension cutout 464, but instead, a part of the dielectric 70 is formed through the cutout. It may be provided to press and support the outside of the formed tension cutout 564 from the outside.

12A to 12C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a seventh embodiment.

As shown in FIGS. 12A to 12C, the cavity filter 20 according to the seventh embodiment of the present invention has a reinforcement plate 695 for reinforcing the resonance element 31, compared to the sixth embodiment. More may be included.

A terminal through-hole 71 through which the other terminal 60 passes is formed in the reinforcement plate 695, and the other terminal 60 may be fixed to the terminal through-hole 671 of the reinforcement plate 695.

As shown in FIG. 12B, a locking portion 663 formed on the outer surface of the other terminal 660 may be supported on the upper surface of the reinforcement plate 695. The reinforcement plate 695 prevents the other terminal 660 from moving excessively downward by moving the one terminal 650 toward the other terminal 660 due to the assembly force provided by the assembler, thereby substantially maintaining the other terminal (660). The lower end 662 of 660 serves to prevent deformation of the fixed resonant element 31.

That is, in the case of the cavity filter 20 of the sixth embodiment, the assembling force of the assembler is transmitted solely to the resonance element 31 through the other terminal 560, but the cavity filter 20 of the seventh embodiment is a reinforcement plate. By locking the other terminal 660 to 695, it can serve to indirectly reinforce the resonance element 31.

Meanwhile, a tension cut portion 664 is formed at the upper end of the other terminal 660, a portion of the lower end of one terminal 550 is inserted into the upper end 661 of the other terminal 660 in the shape of a hollow tube, and one terminal ( Since a plurality of elastic beads 680 are provided between 550) and the other terminal 660, the configuration is the same as that of the sixth embodiment, and detailed description thereof will be omitted.

13A to 13C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion of a cavity filter according to an eighth embodiment.

As compared to the cavity filter 20 according to the sixth embodiment, the cavity filter 20 according to the eighth embodiment of the present invention, as shown in FIGS. 13A to 13C, has a lower end of one terminal 750 ( 752) is provided in the form of a hollow tube, and a tension cutout 754 may be formed at the lower end 752 of one terminal 750. In addition, a portion of the upper part 761 of the other terminal 760 may be inserted into the lower part 752 of the hollow tube-shaped terminal 750.

Here, at one terminal 750, a separation prevention rib 755 may be further formed to protrude outward from the outer peripheral surface corresponding to the upper end of the tension cutout 754.

The separation prevention rib 755 of one terminal 750 is provided to be caught on the inside of the terminal through hole 771 of the dielectric 770, so that a plurality of The elastic force of the elastic bead 780 serves to prevent one terminal 750 from being separated to the outside (in particular, in the direction in which the antenna board or PCB board 8 provided with the electrode pad is provided).

In addition, compared to the cavity filter 20 according to the sixth embodiment, the cavity filter 20 according to the eighth embodiment has a dielectric material 770 on the outer peripheral surface of the tension cut portion 754 of one terminal 750. The configuration in which the lower end 762 of the other terminal 760 is directly soldered to the resonance element 31 without a separate reinforcement plate 595 is the same.

14A to 14C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a ninth embodiment.

The cavity filter 20 according to the ninth embodiment of the present invention, as shown in FIGS. 14A to 14C, reinforces the resonance element 31 compared to the cavity filter 20 according to the eighth embodiment. It may further include a reinforcement plate 895 for.

In the cavity filter 20 according to the ninth embodiment, the reinforcement plate 895 performs the same function as the reinforcement plate 695 of the cavity filter 20 according to the seventh embodiment. The detailed description is Decided to omit it.

In addition, the cavity filter 20 according to the ninth embodiment may include all remaining components of the cavity filter 20 according to the eighth embodiment.

15A to 15C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the tenth embodiment.

As compared to the cavity filter 20 according to the ninth embodiment, as shown in FIGS. 15A to 15C, the cavity filter 20 according to the tenth embodiment of the present invention has one terminal 850' and the other terminal. The elastic member interposed between the terminals 860' may be provided as an elastic spring 880'. Here, the elastic spring 880' may be a spring spring.

In addition, the cavity filter 20 according to the tenth embodiment may include all remaining components of the cavity filter 20 according to the ninth embodiment.

16A to 16C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 11th embodiment.

As shown in FIGS. 16A to 16C, the cavity filter 20 according to the 11th embodiment of the present invention is disposed in the terminal insertion hole 25 and includes a main terminal housing 29 in the form of a hollow tube with an empty interior. It may include a sub-terminal housing 29' spaced apart from the upper side of the main terminal housing 29.

Here, the terminal insertion hole 25, although not specifically shown in the drawings, may be formed in a shape corresponding to the external shape of the main terminal housing 29 and the sub-terminal housing 29'.

Meanwhile, the other terminal 960 is disposed to penetrate vertically inside the main terminal housing 29, and the terminal penetration hole 971a of the upper dielectric 970a and the terminal penetration of the lower dielectric 970b are provided therein. It may be arranged to penetrate the hole 971a.

In addition, a portion of the upper end of the other terminal 960 disposed to penetrate the main terminal housing 29 may be inserted into the sub-terminal housing 29' for a predetermined length. Additionally, one terminal 950 may be installed in the sub-terminal housing 29' to prevent it from escaping to the outside, and an elastic member 980 may be interposed between one terminal 950 and the other terminal 960. One terminal 950 may include a contact portion 951 provided to contact the electrode pad of the antenna board or PCB board 8, and a contact plate 952 formed to be larger than the outer diameter of the contact portion 951. .

Here, as shown in FIGS. 16A and 16B, the elastic member 980 extends upward in the support ring portion 981 and the support ring portion 981 supported on the upper surface of the other terminal 960 in directions that intersect each other. It may be provided as a bar spring including a support bar 982 that protrudes and extends obliquely to support the lower surface of one terminal 950.

As shown in FIG. 16B, when the assembler's assembly force is applied, the bar spring is compressed and deformed by pressing one side terminal 950, absorbing the assembly tolerance existing in the terminal insertion hole 25, and at the same time, the current Since it is made of a conductive material that can flow, interruption of electrical flow can be prevented even if a separate tension cutout is not provided.

17A to 17C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twelfth embodiment.

As shown in FIGS. 17A to 17C, the cavity filter 20 according to the twelfth embodiment of the present invention is disposed in the terminal insertion hole 25 and includes a terminal housing 29 in the form of a hollow tube with an empty interior, and , It may include a transmission terminal 1060 disposed long in the longitudinal direction at the inner center of the terminal housing 29.

Here, the terminal insertion hole 25, although not specifically shown in the drawings, may be formed in a long bar shape corresponding to the external shape of the terminal housing 29.

Meanwhile, an upper dielectric 1070a having a terminal through hole 1071a is provided on the inner upper side of the terminal housing 29, and a lower dielectric 1070b is formed with a terminal through hole 1071b on the inner lower side of the terminal housing 29. ) may be provided.

The transmission terminal 1060 has a portion of the upper portion 1061 inserted into the terminal through-hole 1071a of the upper dielectric 1070a, and a portion of the lower portion 1062 inserted into the terminal through-hole 1071b of the lower dielectric 1070b. It can be fixed for placement.

Here, the cavity filter 20 according to the twelfth embodiment of the present invention is disposed inside the terminal through hole 1071a of the upper dielectric 1070a, as shown in FIGS. 16A and 16B, and is connected to the transmission terminal 1060. One terminal (1050a) is arranged to be spaced apart from the upper end (1061) and is locked to prevent separation from the upper dielectric (1070a), and is disposed inside the terminal through hole (1071b) of the lower dielectric (1070b), but is a transmission terminal. It may include the other terminal 1050b, which is disposed to be spaced apart from the lower end 1062 of 1060 and is locked to prevent separation from the lower dielectric 1070b.

In addition, the cavity filter 20 according to the twelfth embodiment of the present invention is interposed in the upper dielectric 1070a and the lower dielectric 1070b, respectively, and is interposed between one terminal 1050a and the upper end of the transmission terminal 1060. It may include an upper elastic member 1080a and a lower elastic member 1080b interposed between the other terminal 1050b and the lower end 1062 of the transmission terminal 1060.

Here, both the upper elastic member 1080a and the lower elastic member 1080b may be provided as spring springs.

As shown in FIG. 17b, the upper elastic member 1080a and the lower elastic member 1080b are present in the terminal insertion hole 25 while being compressed and deformed by the pressing of one terminal 1050a when the assembly force of the assembler is applied. It can perform the function of absorbing assembly tolerances.

Meanwhile, the cavity filter 20 according to the twelfth embodiment of the present invention, as shown in FIG. 17B, has one terminal 1050a into which the upper end 1061 and the lower end 1062 of the transmission terminal 1060 are inserted and received. A tension cutout 1054 may be provided at the lower end 1052 of and the upper end 1052 of the other terminal 1050b.

This tension cutout 1054 can provide side tension as its outer peripheral surface is closely supported by the upper and lower dielectrics 1070a and 1070b, respectively, between one terminal 1050a and the transmission terminal and the other terminal. Disruption of electrical flow between 1050b and the transmission terminal 1060 can be prevented.

3. Terminal part (40) Elimination of assembly tolerances by self-elasticity

18A to 18C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the thirteenth embodiment.

As shown in FIGS. 18A to 18C, the cavity filter 20 according to the 13th embodiment of the present invention is disposed within the terminal insertion hole 25, and has an electrode provided on the antenna board or PCB board 8 at the upper end. A contact portion 1153 that is in contact with the pad is formed, and the lower end may include a single terminal portion 1140 that is soldered to the resonance element 31.

The cavity filter 20 according to the thirteenth embodiment of the present invention, unlike many of the above-described embodiments, may be provided as a single terminal portion 1140 instead of dividing the terminal portion into one terminal and the other terminal. In this way, when provided as a single terminal portion 1140, unlike other embodiments in which it is divided into separate members, the problem of interruption of electrical flow is not expected, so there is no need to provide an existing tension cutout for adding side tension. does not exist.

However, when employed as a single terminal portion 1140, it may have an elastically deformable portion 1154 that can stretch and contract in the longitudinal direction in order to absorb assembly tolerances existing within the terminal insertion hole 25.

In the cavity filter 20 according to the 13th embodiment of the present invention, the single terminal portion 1140 is the distance between the top and bottom by the assembly force transmitted in the vertical direction, as shown in FIGS. 18A to 18C. A plurality of elastic deformation parts 1154 whose outer circumferential surfaces are partially chamfered may be formed to expand and contract.

The plurality of elastic deformation parts 1154 are chamfered at a predetermined height from one side of the outer peripheral surface of the single terminal part 1140 to the other side, and are formed in plural numbers in the vertical direction, and are formed in a chamfer direction of the adjacent elastic deformation parts 1154. can be formed in opposite directions.

Therefore, when the contact portion 1153, which is the upper end of the single terminal portion 1140, is pressed by the assembling force by the assembler, the chamfered entrance portion of the elastic deformation portion 1154 is brought close like a laminated leaf spring. As the shape is deformed, the assembly tolerance existing within the terminal insertion hole 25 can be absorbed.

In addition, the cavity filter 20 according to the 13th embodiment of the present invention is disposed in the terminal insertion hole 25, as shown in FIGS. 18A to 18C, and is supported through the lower end of the single terminal portion 1140. It may further include a reinforcement plate 1195. Since the reinforcement plate 1195 here performs the same function as the reinforcement plates already described, its detailed description will be omitted.

In this way, the cavity filter 20 according to the 13th embodiment of the present invention prevents the electrical flow from being interrupted by the single terminal portion 1140 and at the same time allows expansion and contraction due to assembly force within the terminal insertion hole 25. It can be provided to make it possible.

However, depending on the embodiment, when the terminal portion 40 itself is provided to be flexible within the terminal insertion hole 25, it will not necessarily be limited to being provided as a single terminal portion 1140, as in the embodiment described above. As with others, it is provided divided into one side terminal and the other side terminal, but it will be considered sufficient if one of the two is provided to be flexible to the expected assembly tolerance. This will be explained in detail through examples described later.

19A to 19C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the fourteenth embodiment.

As compared to the cavity filter 20 according to the 13th embodiment, the cavity filter 20 according to the 14th embodiment of the present invention, as shown in FIGS. 19A to 19C, includes an antenna board or a PCB board 8. A rounded contact portion 1252 formed to be rounded to contact the electrode pad of the device, and a vertical connection portion 1251 extending directly downward from the rounded contact portion 1252 and fixed by solder to the solder hole 32 of the resonance element 31. It may include a single terminal unit 1250 including.

Here, the rounded contact portion 1252 may be formed to be rounded to have an upper cross-sectional shape of a 'question mark', which is a symbol character.

In addition, a dielectric 1270 for impedance matching design may be inserted into the terminal insertion hole 25, and a terminal through-hole 71 through which the vertical connecting portion 1251 penetrates may be formed in the dielectric 1270.

In the cavity filter 20 according to the fourteenth embodiment of the present invention configured as described above, when the assembling force of the assembler is provided by the single terminal portion 1250, the tip of the rounding contact portion 1252 corresponding to the elastic deformation portion is By elastically deforming while being pressed downward, the assembly tolerance existing within the terminal insertion hole 25 can be absorbed.

Figures 20A to 20C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the fifteenth embodiment.

As compared to the cavity filter 20 according to the 14th embodiment, the cavity filter 20 according to the 15th embodiment of the present invention, as shown in FIGS. 20A to 20C, includes an antenna board or a PCB board 8. A rounded contact portion 1352 formed to be rounded so as to contact the electrode pad, a connection terminal portion 1351 extending directly downward from the round contact portion 1352, and a terminal insertion hole 25 from the bottom of the connection terminal portion 1351. It may include a single terminal portion 1340 including a bent connection portion 1353 that is bent and extended toward a power supply portion (not indicated) provided on one side directly below.

Here, the rounded contact portion 1352 is formed to be rounded to have an upper cross-sectional shape of approximately the symbolic character 'question mark (?)', and the connection terminal portion 1351 and the bent connection portion 1353 are formed to form a rounded contact portion 1352. ), the lower end may be bent to have the lower cross-sectional shape of the Korean character 'ㄴ', which is bent approximately orthogonally.

In addition, a dielectric 1370 for impedance matching design may be inserted into the terminal insertion hole 25, and a terminal through-hole 1373 through which the connection terminal portion 1351 penetrates may be formed in the dielectric 1370.

In the cavity filter 20 according to the 15th embodiment of the present invention configured as described above, when the assembling force of the assembler is provided by the single terminal portion 1340, the tip of the rounding contact portion 1352 corresponding to the elastic deformation portion is By elastically deforming while being pressed downward, the assembly tolerance existing within the terminal insertion hole 25 can be absorbed.

Figures 21A to 21C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the sixteenth embodiment.

As compared to the cavity filter 20 according to the 15th embodiment, the cavity filter 20 according to the 16th embodiment of the present invention, as shown in FIGS. 21A to 21B, includes an antenna board or a PCB board 8. A vertical contact portion 1452 formed vertically up and down to contact the electrode pad of It may include a single terminal portion 1440 including a bent portion 1453 bent in a zigzag shape between the vertical contact portion 1452 and the vertical connecting portion 1451.

In the cavity filter 20 according to the 16th embodiment of the present invention configured as described above, when the assembling force of the assembler is provided to the single terminal portion 1440, the bent portion 1453 corresponding to the elastic deformation portion moves in the vertical direction. By elastically deforming while folding, the assembly tolerance existing within the terminal insertion hole 25 can be absorbed.

Since the configuration of the dielectric 1470 on which the terminal through hole 71 is formed and other configurations are similar or identical to those of the cavity filter 20 according to the fifteenth embodiment, detailed description will be omitted.

Figures 22a to 22c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 17th embodiment.

The cavity filter 20 according to the 17th embodiment of the present invention, as shown in FIGS. 22A to 22B, compared to the cavity filter 20 according to the 15th and 16th embodiments, includes an antenna board or A vertical contact portion 1551 formed vertically up and down to contact the electrode pad of the PCB board 8, and a power supply unit (not shown) provided on one side directly below the terminal insertion hole 25 from the bottom of the vertical contact portion 1551. ) may include a single terminal portion 1540 including a horizontal connection portion 1553 bent and extended toward.

The vertical contact portion 1551 of the single terminal portion 1540 of the cavity filter 20 according to the 17th embodiment is a vertical contact portion of the single terminal portion 1440 of the cavity filter 20 according to the 16th embodiment. Corresponds to 1452, and the horizontal connection portion 1553 of the cavity filter 20 according to the 17th embodiment is the bent connection portion 1353 of the single terminal portion 1340 of the cavity filter 20 according to the 15th embodiment. This is a configuration that corresponds to .

In the cavity filter 20 according to the 17th embodiment of the present invention configured as described above, the horizontal connecting portion 1553 is fixed in a cantilever shape with respect to the power supply unit, and the vertical contact portion 1551 is pressed by the assembly force of the assembler. As the force acts as a kind of moment, the horizontal connecting portion 1553 is elastically deformed in a downward sagging motion, thereby absorbing the assembly tolerance existing within the terminal insertion hole 25. Therefore, in the cavity filter 20 according to the 17th embodiment, the single terminal portion 1540 does not have a separate elastic deformation portion visibly formed, but rather the entire terminal portion 1540 excluding the fixing point of the horizontal connection portion 1553. Assembly tolerances can be absorbed through elastic deformation.

Figures 23a to 23c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 18th embodiment.

As shown in FIGS. 23A to 23C, the cavity filter 20 according to the 18th embodiment of the present invention is elastically deformed by the assembly force provided by the assembler, and is disposed on the upper side of the terminal insertion hole 25. , one side terminal 1650 disposed to enable contact with the electrode pad formed on the antenna board or PCB board 8, and disposed on the lower side of the terminal insertion hole 25, but connected to the solder hole 32 formed in the resonance element 31. It may include a terminal portion 1640 including the other terminal 1660 that is fixed by solder.

Here, one terminal 1650 includes a contact portion 1651 formed roundly so that the upper side contacts the electrode pad, and a terminal fixing portion that extends horizontally from the bottom of the contact portion 1651 and is fixed to the other terminal 1660. (1652).

In addition, a fixing groove 1664 into which the terminal fixing part 1652 of one terminal 1650 is inserted may be formed in the upper part 1661 of the other terminal 60, and the lower part 1662 of the other terminal 1660 Can be inserted into the solder hole 32 of the resonant element 31 and fixed with solder. Additionally, a stop rib 1663 that prevents excessive elastic deformation of one terminal 1650 may be provided to protrude outward on the outer peripheral surface corresponding to the lower side of the fixing groove 1664 of the other terminal 1660.

One terminal 1650 has a terminal fixing part 1652 fixed to the fixing groove 1664 of the other terminal 1660, and when the assembly force of the assembler is not provided, the tip of the contact part 1651 It is located a predetermined distance above the rib surface of the stop rib 1663, and is elastically deformed as the assembly force of the assembler is provided, thereby becoming caught on the stop rib 1663.

Therefore, in a state in which the assembly force of the assembler is not provided, the separation distance between the rib surface of the stop rib 1663 and the tip of the contact portion 1651 is at least enough to absorb all of the assembly tolerance existing in the terminal insertion hole 25. It is desirable to design it with a length of .

Meanwhile, the cavity filter 20 according to the 18th embodiment of the present invention is disposed within the terminal insertion hole 25, as shown in FIGS. 23A and 23B, and has a terminal through which the other terminal 1660 penetrates and is fixed. It may further include a dielectric 1670 in which a hole 1671 is formed.

In the cavity filter 20 according to the 18th embodiment of the present invention formed in this way, when the assembly force of the assembler is provided, one terminal 1650 is elastically deformed and the rounded contact portion 1651 is elastically deformed. The operation can absorb assembly tolerances that exist within the terminal insertion hole 25.

In addition, both one terminal 1650 and the other terminal 1660 are made of a conductive material, and the terminal fixing part 1652 of one terminal 1650 is firmly fixed to the fixing groove 1664 of the other terminal 1660. Bar, there is no requirement to provide a tension cutout for separately adding side tension.

Figures 24a to 24c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 19th embodiment.

As shown in FIGS. 24A to 24C, the cavity filter 20 according to the 19th embodiment of the present invention is elastically deformed by the assembly force provided by the assembler, and is disposed on the upper side of the terminal insertion hole 25. , one side terminal 1750 disposed to enable contact with the electrode pad formed on the antenna board or PCB board 8, and disposed on the lower side of the terminal insertion hole 25, but in the solder hole 32 formed in the resonance element 31. It may include a terminal portion 1740 including the other terminal 1760 that is fixed by solder.

Compared to the cavity filter 20 according to the 18th embodiment of the present invention, the cavity filter 20 according to the 19th embodiment of the present invention configured as described above has the terminal fixing portion 1752 of one terminal 1750 on the other side. It can be tightly fixed to the upper surface of the terminal 1760. One terminal 1750 and the other terminal 1760 may be fixed using a solder method, and may also be fixed using any other method using other fastening members.

In addition, in the cavity filter 20 according to the 19th embodiment of the present invention, compared to the cavity filter 20 according to the 17th embodiment, the stop rib 1763 is a portion of the upper surface 1761 of the other terminal 1760. It may be formed as a stepped surface cut downward.

The dielectric 1770 inserted for impedance matching in the terminal insertion hole 25 and other components are similar or identical to those of the cavity filter 20 according to the 18th embodiment, and detailed description will be omitted.

Figures 25a to 25c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twentieth embodiment.

As shown in FIGS. 25A to 25C, the cavity filter 20 according to the twentieth embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25, and has an electrode pad formed on the antenna board or the PCB board 8. One side terminal 1850 arranged to enable contact, and the other side disposed on the lower side of the terminal insertion hole 25 and supported on the upper surface of the resonance element 31, and elastically deformed by the assembling force provided by the assembler. It may include a terminal portion 40 including a terminal 1860.

In addition, the cavity filter 20 according to the twentieth embodiment of the present invention includes a reinforcement plate 1895 disposed in the terminal insertion hole 25 and having a terminal penetration hole 1897 through which one terminal 1850 passes. It may further include.

Here, one terminal 1850 includes a contact portion 1853 that forms a predetermined contact surface that contacts the electrode pad of the antenna board or PCB board 8 described above, and is reinforced by the assembling force provided by the assembler. It may be provided to move up and down through the terminal through hole 1897 of the plate 1895. On the outer peripheral surface of one terminal 50, a separation prevention rib 1852 may be formed that is caught on the lower edge of the terminal through hole 1897 of the reinforcement plate 1895 to prevent arbitrary separation to the outside.

In addition, the other terminal 1860 has a fixed end 1862 fixed to the bottom surface of the one terminal 1850, extends rounded downward from one side of the fixed end 1862, and is attached to the upper surface of the resonance element 31. It may include an elastic support portion 1861 that is elastically supported.

When the assembling force of the assembler is applied, the tip of the elastic support portion 1861 is elastically deformed in an operation in which one terminal 1850 is pressed downward, and a stop rib 1855 is formed with a stepped cut at the lower end of the one terminal 1850. The rib surface can be elastically deformed to the limit.

Compared to the cavity filter 20 of the 19th embodiment, the cavity filter 20 according to the 20th embodiment of the present invention configured as described above has one terminal 1850 and the other terminal 1860 upside down. get drunk In addition, in the cavity filter 20 according to the 19th embodiment, the dielectric 1770 can be replaced as is with the reinforcement plate 1895 of the cavity filter 20 according to the 20th embodiment to the extent that impedance matching design is possible. It is a composition.

Since all other configurations are similar to or have the same configuration as the cavity filter 20 according to the 19th embodiment, detailed description will be omitted.

Figures 26a to 26c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 21st embodiment.

As compared to the cavity filter 20 according to the 20th embodiment, as shown in FIGS. 26A to 26C, the cavity filter 20 according to the 21st embodiment of the present invention has the other terminal of the terminal portion 1940 ( The fixed end 1961 of 1960) is fixed to the upper surface of the resonant element 31, and the elastic support part 1962 of the other terminal 1960 of the terminal part 1940 is rounded to be elastically supported on the lower surface of one terminal 1950. It can be provided.

In addition, the reinforcement plate 1995 with the terminal through-hole 1997 disposed in the terminal insertion hole 25 is provided in a similar or identical configuration to the cavity filter 20 according to the 19th embodiment, and detailed description is omitted. I decided to do it.

Figures 27a to 27c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 22nd embodiment.

As compared to the cavity filter 20 according to the 19th embodiment, as shown in FIGS. 27A to 27C, the cavity filter 20 according to the 22nd embodiment of the present invention has one terminal of the terminal portion 2040 ( 2050) takes the form of being upside down.

That is, the terminal fixing portion 2052 of one terminal 2050 may be tightly fixed to the electrode pad formed on one surface of the antenna board or PCB board 8.

One terminal 2050 and the other terminal 2060 are physically separated from each other, but as shown in FIG. 26b, when the assembly force of the assembler is provided, the elastic support portion 2051 of one terminal 2050 is As an elastic deformation part that continuously supports the upper surface of the other terminal 2060, it can absorb assembly tolerances in the terminal insertion hole 25 and prevent interruption of electrical flow.

In addition, the reinforcement plate 2095 with the terminal through hole 2097 disposed in the terminal insertion hole 25 is provided in a similar or identical configuration to the cavity filter 20 according to the 19th embodiment, and detailed description is omitted. I decided to do it.

Figures 28a to 28c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twenty-third embodiment.

Referring to FIGS. 28A to 28C, the cavity filter 20 according to the 23rd embodiment of the present invention is disposed within the terminal insertion hole 25 and is formed on one surface of the antenna board or PCB board 8 disposed on the upper side. A contact portion 2151 disposed to enable contact with the electrode pad, and a horizontal connection portion bent and extended from the bottom of the contact portion 2151 toward the power supply unit (not indicated) provided on one side directly below the terminal insertion hole 25 ( 2152) and a single terminal portion 2140 disposed between the contact portion 2151 and the horizontal connection portion 2152 and including an elastic terminal portion 2153 bent and connected in a zigzag manner in the horizontal direction.

In addition, the cavity filter 20 according to the 23rd embodiment of the present invention includes a terminal insertion hole 25 to surround the remainder of the terminal portion 2140 except for the upper end of the contact portion 2151 and a portion of the horizontal connection portion 2152. ) may further include a dielectric 2160 disposed within.

On the upper surface 2161 of the dielectric 2160, a contact portion side through hole 2165 is formed so that the upper end of the contact portion 2151 penetrates and protrudes upward, and on the outer peripheral surface of the lower side 2162 of the dielectric 2170, a horizontal connection portion ( A through hole 2164 on the connection side through which 2152 passes horizontally may be formed.

In addition, a guide bar 2163 connected in the horizontal direction is provided in the contact portion side through hole 2165 of the dielectric 2060, and the guide bar 2163 is a guide slot formed with a long vertical cut at the upper end where the contact portion 2151 is formed. By being provided to penetrate through (2154), the vertical movement of the contact portion 2151 can be stably guided when the elastic terminal portion 2153 is elastically deformed by the assembling force provided by the assembler. Here, the elastic terminal portion 2153 may serve as an elastic deformation portion that absorbs the assembly tolerance existing in the terminal insertion hole 25 due to the assembly force provided by the assembler.

Figures 29a to 29c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twenty-fourth embodiment.

As shown in FIGS. 29A to 29C, the cavity filter 20 according to the twenty-fourth embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25 and is formed on one side of the antenna board or PCB board 8. One side terminal 2250 is provided to enable contact with the electrode pad, and is disposed on the lower side of the terminal insertion hole 25, and a terminal receiving hole (not indicated) is formed so that a portion of the lower end of the one side terminal 2250 is accommodated and fixed. , It may include a terminal portion 2240 including the other terminal 2260 that is fixed by solder to the solder hole 32 formed in the resonant element 31.

The terminal portion 2240 is interposed inside the terminal receiving hole, and is an elastic member 2280 provided with a spring spring that elastically supports the lower surface 2251 of one terminal 2250 to the upper side where the antenna board or PCB board 8 is provided. ) may further be included.

Here, as shown in FIGS. 29A and 29B, one terminal 2250 is formed to be bent approximately in a 'U' shape, and may be formed in a clip shape so that two contact surfaces 2252 are formed at the top. there is. The contact portion 2251 of one terminal 2250 with two contact surfaces 2252 formed at the top is preferably rounded and bent to minimize the contact area with respect to the electrode pad.

Meanwhile, the cavity filter 20 according to the 24th embodiment of the present invention is disposed in the terminal insertion hole 25, as shown in FIGS. 29A and 29B, and has a terminal penetration hole through which the other terminal 2260 passes. It may further include a reinforcement plate 2295 on which 2297) is formed.

Here, the function of the reinforcement plate 2295 has already been described in detail in the above-described embodiments, and detailed description will be omitted.

In the cavity filter 20 according to the 24th embodiment of the present invention, in particular, the contact portion 2252, which functions as an elastic deformation portion, is pressed downward by the assembling force provided by the assembler and is elastically deformed, and the elastic deformation portion 2252 is elastically deformed. By being provided to be continuously elastically supported toward the electrode pad by the member 2280, it has the advantage of generating a stable electrical flow by preventing the contact area from being reduced or increased from time to time.

Figures 30A to 30C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twenty-fifth embodiment.

As compared to the cavity filter 20 according to the 24th embodiment, the cavity filter 20 according to the twenty-fifth embodiment of the present invention, as shown in FIGS. 30A to 30C, has a contact portion having two contact surfaces. (2352) further includes a contact protrusion 2352' that protrudes further upward, and a protruding anti-separation protrusion on the side 2351 of one terminal 2350 to be caught inside the terminal receiving hole of the other terminal 2360. Protrusions 2351' may be formed.

The contact protrusion 2352' described above serves to standardize the contact area of the contact portion 2352 with respect to the electrode pad formed on one surface of the antenna board or PCB board 8. Therefore, to the extent that one terminal 2350 is elastically supported by the elastic member 2280 in the cavity filter 20 according to the twenty-fourth embodiment and makes contact with the electrode pad, the contact area can be maintained constant.

Other than that, the remaining configurations were the same as those of the 24th embodiment.

Figures 31A to 31C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the twenty-sixth embodiment.

The cavity filter 20 according to the 26th embodiment of the present invention, as compared to the cavity filter 20 according to the 25th embodiment, accommodates the terminal of the other terminal 2460, as shown in FIGS. 31A to 31C. It is placed inside the hole and may further include a separation prevention housing 2455 that accommodates the one side terminal 2450 therein and prevents the one side terminal 2450 from leaving the outside.

In the anti-separation housing 2455, a guide is cut so that the contact protrusion 2452' of one terminal 2450 and the anti-separation protrusion 2451' of the cavity filter 20 according to the 25th embodiment protrude to the outside. A groove 2457 may be formed.

The contact protrusion 2452' of one terminal 2450 protrudes toward the upper side 2456 of the guide groove 2457 and may be in contact with the electrode pad, and the separation prevention protrusion 2451' of one terminal 2450 also provides a guide. It protrudes from the left and right sides of the groove portion 2457 and may be caught inside the terminal receiving hole.

The anti-separation housing 2455 has an internal space in which one terminal 2450 is accommodated, but when it is elastically deformed by the provision of the assembly force of the assembler, one terminal 2450 is at the yield point (elastic recovery again) due to excessive deformation. It serves to protect against exceeding the limit.

Since the remaining configurations are the same as those of the 24th embodiment, detailed descriptions will be omitted.

Figures 32a to 32c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 27th embodiment.

As compared to the cavity filter 20 according to the 26th embodiment, the cavity filter 20 according to the 27th embodiment of the present invention is formed in the separation prevention housing 2555, as shown in FIGS. 32A to 32C. The guide groove 2557 may be provided in a '+' shape.

This is, unlike the cavity filter 20 according to the 26th embodiment of the present invention, where the guide groove 2457 of the separation prevention housing 2455 is cut in the shape of a 'ㅡ' shape, the cavity filter according to the 27th embodiment of the present invention In the case of (20), the anti-separation housing 2555 is provided with a guide groove 2557 cut in a '+' shape, so that the anti-separation housing 2555 itself can be given a predetermined elastic restoring force by external force. .

Since the remaining configurations are the same as those of the 26th embodiment, detailed descriptions will be omitted.

Figures 33A to 33C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 28th embodiment.

As shown in FIGS. 33A to 33C, the cavity filter 20 according to the 28th embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25 and is formed on one surface of the antenna board or PCB board 8. One terminal 2650 provided to enable contact with the electrode pad, and the other terminal 2660 disposed on the lower side of the terminal insertion hole 25 and fixed by solder to the solder hole 32 formed in the resonance element 31. It may include a terminal portion 2640.

Here, the one-side terminal 2650, like the cavity filter 20 according to the 18th embodiment already described, has a contact portion 2651 formed roundly so that the upper side contacts the electrode pad, and a lower end of the contact portion 2651. It may include a terminal fixing part 2652 that extends vertically from and is fixed to the other terminal 2660.

Meanwhile, a distinct difference from the cavity filter 20 according to the 18th embodiment is that a plurality of terminal cutouts 2653 are formed so that the contact portion 2651 of one terminal 2650 is divided into at least three branches. . That is, the contact portion 2651 of one terminal 2650 is formed with two terminal cutouts 2653 so as to be divided into three branches, as shown in FIG. 33C, so that the contact portion 2651 has elasticity due to the assembly force provided by the assembler. The possibility of deformation may be further increased.

In addition, the terminal fixing part 2652 of one terminal 2650 can be fixed to the side of the upper part 2661 of the other terminal 2660 in any one of various ways, such as a solder method or a fastening method using a fastening member. there is.

Additionally, on the outer peripheral surface of the other terminal 2660, a stop rib 2663 may be provided to protrude outward to prevent excessive elastic deformation of the contact portion 2651 of the one terminal 2650.

Meanwhile, the dielectric 2670 inserted for impedance matching in the terminal insertion hole 2625 and other components are similar or identical to those of the cavity filter 20 according to the 18th embodiment, and detailed description will be omitted. do.

4. Washer deformation type assembly tolerance absorption

Figures 34a to 34c are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 29th embodiment.

As shown in FIGS. 34A to 34C, the cavity filter 20 according to the 29th embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25 and has an electrode pad formed on the antenna board or PCB board 8. A terminal portion 40 including one terminal 2750 disposed in contact with the terminal 2750 and the other terminal 2760, which is connected to the terminal 2750 and whose lower end is fixed by solder to the solder hole 32 formed in the resonance element 31. ) may include.

Here, the one side terminal 2750 is accommodated inside the other terminal 2760 and includes a locking support plate 2751 that is caught inside the upper end of the other terminal 2760 to prevent the top from coming off, and a locking support plate 2751. The upper surface may include an upper protrusion 2752 that protrudes upward by a predetermined length, and a contact portion 2753 formed on the top of the upper protrusion 2752 to have a predetermined contact area with respect to the electrode pad.

Meanwhile, an elastic member 2780 may be provided inside the other terminal 2760 to elastically support the lower surface of the engaging support plate 2751 of the one terminal 2750 upward. Here, the elastic member 2780 also provides the assembly force of the assembler to elastically support the one side terminal 2750 for the distance at which it is pressed downward, thereby serving to absorb the assembly tolerance existing within the terminal insertion hole 25.

Such an elastic member 2780 may be a washer spring formed in approximately the same shape as the star washer 90 already described in the first embodiment, but with a smaller size than the star washer 90. Accordingly, the washer spring has a ring-shaped fixed end (not shown) fixed to the spring installation groove 2764, which will be described later, and the center of the lower surface of the engaging support plate 2751 of one terminal 2750 is positioned from the fixed end. It may include a plurality of support ends (not shown) inclined upward.

In addition, as shown in FIG. 34b, the other terminal 2760 has its upper surface 2761 recessed downward to accommodate the engaging support plate 2751 of the one terminal 2750. ) A spring installation groove 2764 may be formed at the inner lower portion where the washer spring, which is an elastic member 2780, is installed.

As shown in FIGS. 34A and 34B, the cavity filter 20 according to the 29th embodiment of the present invention has an impedance inside the terminal insertion hole 25 in relation to the terminal portion 2740 provided within the terminal insertion hole 25. It may further include a dielectric 2770 inserted for matching design. A terminal through-hole 2771 through which the lower end 2762 of the other terminal 2760 penetrates may be formed in the dielectric 2770.

The cavity filter 20 according to the 29th embodiment of the present invention configured as described above eliminates the assembly tolerance that exists between the star washer 90 and the antenna board or the PCB board 8, and at the same time, the elastic member 2780 The in-washer spring makes it possible to eliminate assembly tolerances that exist within the terminal insertion hole 25.

Figures 35A to 35C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a 30th embodiment.

Compared to the cavity filter 20 according to the 29th embodiment, the cavity filter 20 according to the 30th embodiment of the present invention supports the locking of one terminal 2850, as shown in FIGS. 35A to 35C. Instead of removing the plate 2751, a locking rib 2854 that is caught by the tip of a plurality of support ends of the washer spring may be formed on the outer peripheral surface of the one terminal 2850. In addition, the lower end of the one terminal 2850 ( 2851) can penetrate between the plurality of support ends of the washer spring and be inserted into the terminal guide hole 2863 formed in the center of the other terminal 2860 to guide the vertical movement.

According to the 30th embodiment of the present invention configured as described above, both one terminal 2850 and the other terminal 2860 are made of a conductive material, and an elastic force is provided between the one terminal 2850 and the other terminal 2860. The washer spring, which is an elastic member 2880 that provides, is also made of a conductive material, and as in the case where it is provided as an integrated single terminal portion 2840, a separate tension cutout for adding side tension is not required and electrical flow is maintained. It can be defined as a structure in which disconnection is not expected.

Meanwhile, the dielectric 2870 and other components inserted for impedance matching within the terminal insertion hole 25 are provided similarly or identically to the cavity filter 20 according to the 29th embodiment, and detailed description will be omitted. do.

Figures 36A to 36C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 31st embodiment.

As compared to the cavity filter 20 according to the 30th embodiment, as shown in FIGS. 36A to 36C, the cavity filter 20 according to the 31st embodiment of the present invention has one side of the terminal portion 2840. There may be a difference in that the terminal 2850 and the washer spring, which is an elastic member 2880, are provided integrally.

More specifically, as shown in FIGS. 36A to 36C, one terminal 2950 is provided to protrude upward toward the electrode pad formed on the antenna board or PCB board 8 and has a predetermined contact surface formed as the upper surface. A contact portion 2953 and a plurality of spring terminal portions 2952 extending radially from the lower end 2951 of the contact portion 2953 and being locked in the spring installation groove 2964 formed inside the other terminal 2960. It can be included.

In particular, the tip of the spring terminal portion 2952, which corresponds to the fixed end of the existing washer spring, is designed to expand and move to the inner peripheral wall of the spring installation groove 2964 when elastically deformed by the assembly force provided by the assembler. desirable.

Meanwhile, the dielectric 2970 inserted for impedance matching in the terminal insertion hole 25 and other components are similar or identical to those of the cavity filter 20 according to the 30th embodiment, and detailed description will be omitted. do.

5. Terminal part Elimination of assembly tolerances due to shape deformation of overlap area

Figures 37A to 37C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 32nd embodiment.

As shown in FIGS. 37A to 37C, the cavity filter 20 according to the 32nd embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25 and has an electrode pad formed on the antenna board or PCB board 8. A contact surface capable of being contacted is disposed on the lower side of the terminal insertion hole 25 and one terminal 3050 including a contact portion 3053 formed at the top, and accommodates a part of the one terminal 3050 and has a lower portion ( 3062 may include a terminal portion 40 including the other terminal 3060 that is fixed by solder to the solder hole 32 formed in the resonant element 31.

Here, the contact portion 3053 is preferably provided to have a vertical cross-sectional shape of a hemisphere so as to minimize the contact area with respect to the electrode pad, as shown in FIGS. 37A to 37C.

Meanwhile, one side terminal 3050 may further include a plurality of cut pieces 3052' and 3052" that are cut and extended slanted upward outward on the outer peripheral surface.

A plurality of cut pieces 3052' and 3052" are formed on the outer peripheral surface of one terminal 3050 relatively above the side cut pieces 3052" described later, and the upper end 3061 of the other terminal 3060. ) is disposed to extend outward and is accommodated inside the other terminal 3060 when the assembly force is provided by the assembler, and adds an elastic force to push one terminal 3050 upward with respect to the other terminal 3060. A side cut piece (3052') is formed on the outer peripheral surface of one terminal (3050) corresponding to the lower part of the elastic cut piece (3052') and applies an elastic force laterally to the inner surface of the other terminal (3060). 3052").

As described above, the elastic cut piece 3052' is such that when the assembling force of the assembler is applied and one terminal 3050 is pressed downward, one terminal 3050 is received inside the upper end of the other terminal 3060. When moved, it is elastically deformed so as to be folded, thereby adding an elastic force that pushes one terminal 3050 upward relative to the other terminal 3060, thereby performing the function of absorbing the assembly tolerance existing within the terminal insertion hole 25.

In addition, the side cut piece 3052" serves to prevent interruption of electrical flow between one terminal 3050 and the other terminal 3060 by adding continuous lateral tension to the inner surface of the other terminal 3060. Do it.

Meanwhile, the cavity filter 20 according to the 32nd embodiment of the present invention is disposed in the terminal insertion hole 25, as shown in FIGS. 37A and 37B, and is located at the lower end of the other terminal 3060 of the terminal portion 3040. It may further include a reinforcement plate 3095 having a terminal through hole 3097 through which (3062) passes.

The reinforcement plate 3095 is moved so that one terminal 3050 is accommodated inside the other terminal 3060 by the assembly force provided by the assembler, and when a predetermined assembly force is transmitted to the other terminal 3060, the other terminal ( By firmly supporting 3060, the lower end 3062 of the other terminal 3060 serves to reinforce the resonance element 31 to which the solder is fixed.

Figures 38A to 38C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to a 33rd embodiment.

As compared to the cavity filter 20 according to the 32nd embodiment, the cavity filter 20 according to the 33rd embodiment of the present invention, as shown in FIGS. 38A to 38C, has an upper portion of one terminal 3150 ( The shape of the contact portion 3153 provided in 3151) is different.

That is, in the cavity filter 20 according to the 32nd embodiment, the cross-sectional shape of the contact portion 3053 takes the vertical cross-sectional shape of a hemisphere so that the contact surface is provided in the form of a point contact that can minimize the contact area. On the other hand, in the cavity filter 20 according to the 33rd embodiment, the contact surface of the contact portion 3153 may be formed to have a line contact shape (specifically, a contact shape with a ring-shaped horizontal cross section).

The cavity filter 20 according to the 33rd embodiment of the present invention can compensate for the contact defect phenomenon of the cavity filter 20 according to the 32nd embodiment due to point contact.

Other shapes and structures of the one side terminal 3150 and the other terminal 3160 and the specific shape and structure of the reinforcement plate 3195 are the same or similar to those of the 32nd embodiment, and detailed description thereof will be omitted. do.

Figures 39A to 39C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 34th embodiment.

As compared to the cavity filter 20 according to the 32nd embodiment, as shown in FIGS. 39A to 39C, the cavity filter 20 according to the 34th embodiment of the present invention has an upper portion of one terminal 3250. Change the shape.

That is, in the cavity filter 20 according to the 32nd embodiment, the upper part 3051 of one terminal 3050 is made of a rigid material that is not elastically deformed by the assembling force provided by the assembler. The cavity filter 20 according to the 34th embodiment has a cut groove 3254 that can be folded downward when the assembly force of the assembler is provided through the contact portion 3253, which is the upper end of one terminal 3250. You can.

In the cavity filter 20 of the 34th embodiment of the present invention, when the assembly force of the assembler is provided through the contact portion 3253, the upper end 3251 of one terminal 3250 is at the cut height of the cut groove 3254. Since it is elastically deformed by being pressed downward as much as possible, it serves to complement the function of the elastic cut piece 3052' in the configuration of the cavity filter 20 of the 32nd embodiment.

Other shapes and structures of the one side terminal 3250 and the other terminal 3260 and the specific shape and structure of the reinforcement plate 3295 are the same or similar to those of the 32nd embodiment, and detailed description thereof will be omitted. do.

Figures 40A to 40C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the 35th embodiment.

As shown in FIGS. 40A to 40C, the cavity filter 20 according to the 35th embodiment of the present invention is disposed on the upper side of the terminal insertion hole 25 and is formed on the antenna board or PCB board 8 at the upper end. A contact portion 3353 having a contact surface that contacts the electrode pad is formed, and a tension cut portion 3355 is formed in the lower end 3352, which is provided in the form of a hollow tube, so that the lower end opens outward by an external force. It is disposed on the lower side of (3350) and the terminal insertion hole 25, and a part of the upper part 3361 is provided to be inserted into the lower part 3352 of one terminal 3350, and the lower part 3362 is connected to the resonance element 31. It may include a terminal portion 3340 including the other terminal 3360 that is fixed by solder to the formed solder hole 32.

Here, the upper end 3361 of the other terminal 3360 has an outer diameter that can be inserted into the lower end 3352 of the one terminal 3350, the upper end of which is provided in the form of a hollow tube, as shown in FIGS. 40A and 40B. However, it may be formed in an approximately cone shape, the lower end of which is larger than the inner diameter of the lower end 3352 of one terminal 3350.

Therefore, when one terminal 3350 is pressed downward by the assembly force provided by the assembler, the lower end 3352 of one terminal 3350 is As it spreads along the outer surface of the upper part 3361 of the other terminal 3360, an elastic force is added to push it relatively upward with respect to the other terminal 3360, and at the same time, lateral tension is applied toward the outer peripheral surface of the upper part 3361 of the other terminal 3360. will be applied.

According to the cavity filter 20 according to the 35th embodiment of the present invention configured as described above, the tension cutout 3355 formed at the lower end of one terminal 3350 and the upper end 3361 of the other terminal 3360 are shaped like this. Through the matching design, it is possible to absorb assembly tolerances within the terminal insertion hole 25 and at the same time prevent interruption of electrical flow through addition of side tension.

Meanwhile, the cavity filter 20 according to the 35th embodiment of the present invention is inserted and disposed within the terminal insertion hole 25, as shown in FIGS. 40A and 40B, and has an impedance matching design in relationship with the terminal portion 3340. It may further include a dielectric 3370 for and a reinforcement plate 3395 that secures the other terminal 3360 of the terminal portion 3340 within the terminal insertion hole 25 and consequently reinforces the resonance element 31.

Terminal penetration holes 3371 and 3397 through which one terminal 3350 and the other terminal 3360 penetrate, respectively, may be formed in the dielectric 3370 and the reinforcement plate 3395.

Figures 41A to 41C are an exploded perspective view, a cross-sectional view, and a perspective view showing a terminal portion thereof showing a cavity filter according to the thirty-sixth embodiment.

The cavity filter 20 according to the 36th embodiment of the present invention has a tension cutout 3455, as compared to the cavity filter 20 according to the 35th embodiment, as shown in FIGS. 41A to 41C. The lower end 3452 of one terminal 3450 may be formed to have a vertical cross-section inclined outward at a predetermined angle as it moves downward.

Additionally, in the case of the cavity filter 20 according to the 35th embodiment, the upper end 3461 of the other terminal 3460 may be formed in a shape in which a portion of the cone-shaped upper end is cut horizontally and deleted.

The shapes and structures of the other terminals 3450 and 3460, and the specific shapes and structures of the dielectric 3470 and the reinforcement plate 3495 are the same or similar to those of the 35th embodiment, and the specific shapes and structures of the other terminals 3450 and 3460 are The explanation will be omitted.

Various embodiments of the present invention configured as described above absorb the assembly tolerance existing in the terminal insertion hole 25 by introducing elastic deformation of the terminal portion 40 itself or a separate elastic additional structure and at the same time add continuous elastic force. In addition to securing the contact performance with respect to the electrode pad, the disconnection of the electrical flow is prevented in advance by configuring the tension cut portion formed by cutting a portion of the terminal portion 40 or the single terminal portion 40, ultimately preventing the antenna device from being disconnected. It has the advantage of preventing performance degradation.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

20: cavity filter 21: filter body
25: terminal insertion hole 27: installation groove
30: Filter module 31: Resonant element
32: Solder hole 40: Terminal part
50: one side terminal 60: other side terminal
70: Dielectric 71: Terminal through hole
80: elastic member 95: reinforcement plate

Claims (9)

A resonance element provided at a predetermined distance apart from an external member provided with an electrode pad on one surface; and
The electrode pad of the external member is electrically connected to the resonance element, and has a structure capable of eliminating the assembly tolerance existing at the predetermined distance and preventing interruption of electrical flow between the electrode pad and the resonance element. Terminal part; Including,
The terminal portion includes one terminal and the other terminal that are mutually extendable and stretchable within the terminal insertion hole by the assembly force provided by the assembler,
an elastic member elastically supporting at least one of the one terminal and the other terminal to eliminate an assembly tolerance existing within the terminal insertion hole; Including more,
a tension cut portion in which a portion of the one terminal and the other terminal are cut to apply tension to each other in a lateral direction when the one terminal and the other terminal are moved within the terminal insertion hole; It further includes,
A cavity filter in which a plurality of elastic rings are stacked up and down on the terminal portion provided on the outside of the one terminal and the other terminal provided with the tension cutout portion. In claim 1,
a dielectric inserted into the terminal insertion hole to surround the outside of the terminal portion; Further comprising a cavity filter. In claim 2,
The one terminal of the terminal portion is arranged to be movable within the terminal insertion hole by the assembling force provided by the assembler together with the dielectric,
The other terminal of the terminal portion is connected to the resonance element,
A cavity filter, wherein one of the one terminal and the other terminal is accommodated to overlap the other terminal by a predetermined length. In claim 1,
a reinforcement plate for reinforcing the RF signal connection portion of the resonance element provided in the terminal insertion hole; Further comprising a cavity filter. In claim 1,
A cavity filter, wherein at least one of the one terminal and the other terminal elastically deforms itself to be elastically supported by the assembling force toward the electrode pad. In claim 4,
The reinforcement plate is a part of the filter main body and is fixed to an insertion support end protruding toward the terminal insertion hole. In claim 4,
A terminal through hole through which the terminal portion passes is formed in the reinforcement plate,
A cavity filter, wherein one of the one terminal and the other terminal penetrating the terminal through hole is formed with a stopping end having a larger diameter than the terminal through hole so as to be caught by the reinforcement plate. In claim 1,
An elastic ring installation groove is formed on the outer peripheral surface of the other terminal provided with the tension cutout among the one terminal and the other terminal,
A cavity filter in which at least one elastic ring is interposed in the elastic ring installation groove. delete

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