JPH0722818A - Input/output terminal working method for antenna multicoupler - Google Patents

Abstract

PURPOSE:To eliminate mold expenses or the like, to eliminate a need for individual attaching work of terminals, and to improve the precision of terminal arrangement positions by preliminarily forming antenna terminals or the like in a fundamental structure part integrally and separating them in the assembling process by cutting. CONSTITUTION:This method is a means to produce an input terminal 3 and an output terminal 4 for connecting an antenna multicoupler with an external circuit. The input terminal 3 and the output terminal 4 in prescribed positions of the peripheral edge part of a metallic substrate 1, which is held in both edge parts of a metallic frame 10 like a tape and is formed into a prescribed shape by punching, and clip parts 7 connected to both terminals 3 and 4 are connected to the frame and the metallic substrate 1 in connection parts and are formed integrally. Printed circuit boards 6 are inserted to clip parts 7, and they are fixed to conductor parts of printed circuit boards 6 by soldering, and thereafter, connection parts are cut to separate both terminals 3 and 4 connected to clip parts 7 from the metallic substrate 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing an input / output terminal of a surface mount type antenna duplexer or a high frequency filter used for a small radio transmitter / receiver or the like.

[0002]

2. Description of the Related Art In order to meet the demand for miniaturization of radio transceivers and reduction of mass production cost, various improvements have been made to miniaturization of mounting parts and high-density mounting. In parallel with miniaturization of mounted components, surface mounting technology (Surface Mount Technology = SMT) is applied as automatic mounting technology for miniaturized components. Of the mounted components, elements such as resistors, capacitors, and coils are relatively easy to realize a surface mounting type structure.
It has been introduced since early times. However, functional components such as hybrid integrated circuits and filters are still required to be improved. The conditions required for a surface mount type structure are that the terminals to be mounted on the board are planar terminals that can be surface-bonded to the board, the dimensional accuracy of the placement positions of multiple terminals is high, and that many components are required for automatic mounting. There is a case where the upper surface is a flat surface so that vacuum suction for transporting the trays one by one to a predetermined position on the substrate can be performed.

FIG. 8 is a diagram showing an example of the external structure of a conventional antenna duplexer. FIG. 8A is a perspective view seen from above and FIG. 8B is a perspective view on the back side. FIG. 9 is a configuration diagram of a circuit housed in the antenna duplexer having the structure shown in FIG. In FIGS. 8 and 9, 1 is a metal substrate, 2 is an antenna terminal to which an antenna is connected, 3 is an input terminal to which a transmitting unit (T _X ) is connected, and 4 is an output to which a receiving unit (R _X ) is connected. It is a terminal.
Reference numeral 5 is a ground terminal, and as shown in FIG. 8 (B), it also functions as a mounting bracket for mounting this duplexer on the device substrate. Reference numeral 8 is a resonator such as a dielectric resonator, and 9 is a metal cover. The antenna terminal 2, the input terminal 3, the output terminal 4, and the ground terminal 5 are all arranged so as to be in surface contact with each other on the same plane, and are configured to be surface-mounted on the device substrate. This antenna duplexer, as shown in FIG.
A transmission-side band elimination filter including the resonators 8, the capacitor C, and the inductance L, and a reception-side bandpass filter including the five resonators 8 and C and L. Metal substrate 1 of 8
It is housed in a case consisting of a cover 9 and a cover 9. In this case, ten resonators 8 and L and C elements are mounted and housed on a printed wiring board (P / B), as shown in FIG.
The antenna terminal 2, the input terminal 3, and the output terminal 4 shown in are fixed by soldering to the printed wiring board (P / B) in the case.

FIG. 10 shows an example of a conventional terminal structure. The antenna terminal 2 and the input / output terminals 3 and 4 have a terminal portion,
A clip portion 7 for soldering and fixing to a board (P / B) is integrally formed. (A), (C), (E)
Shows a shape punched out from a metal plate using a die, and (B), (D), and (F) show shapes in which the clip portion 7 is formed by bending using a die. For the terminal configuration of the antenna duplexer and high frequency filter,
The printed wiring conductor portion of the internal substrate on which the resonator and the L and C elements are mounted may be used as a terminal, but in the antenna duplexer as shown in FIGS. 8 and 9 in which a plurality of vertically elongated dielectric resonators are mounted. , To reduce the component mounting height of the device board,
Since it is necessary to mount the resonator 8 in a horizontal state, and the internal substrate is in a direction perpendicular to the device substrate, the terminals are manufactured as individual parts as shown in FIG. It is configured to be assembled.

[0005]

As described above, the conventional antenna duplexer has a structure in which the antenna terminal and the input / output terminal are individually manufactured as parts and are assembled in a later step. There is a drawback of. (1) A processing die for the terminal is required and the die cost is required. (2) The processing cost of the terminal is individually charged. (3) The material cost of the terminal is individually charged. (4) Since the terminals are manually attached, it requires assembling man-hours, and it is difficult to make the dimensional accuracy uniform when assembling the terminals, and the terminals are arranged at different positions during mass production. This gives a margin to the wiring conductor pattern, which is an obstacle to the miniaturization of a fine pattern.

The object of the present invention is to eliminate the mold cost, processing cost, and material cost required for the individual production of the antenna terminal and the input / output terminal, to eliminate the need for the individual mounting work of the terminal, and the accuracy of the terminal placement position. The purpose is to propose a processing method for input / output terminals, which is dramatically improved.

[0007]

According to the present invention, an antenna terminal, an input terminal, and an output terminal are integrally formed in advance in a basic structure portion (for example, a frame portion or a cover portion), which is cut and separated in the assembly process. By doing so, the gist is that the functions as the original electrical input terminal and output terminal are generated.

That is, the processing method of the input / output terminals of the antenna duplexer of the present invention is for connecting the circuit element mounted on the printed wiring board to the external circuit of the antenna duplexer housed in the metal substrate and the metal cover. In order to manufacture the input terminal and the output terminal, the metal substrate is formed by punching into a predetermined shape, which is held by tie bars at both edges of a tape-shaped metal frame, and is formed at a predetermined position on the peripheral portion of the metal substrate. The input terminal,
An output terminal and a clip portion connected to the input terminal and the output terminal, respectively, are integrally formed by being connected to the frame and the metal substrate at a connecting portion, and the printed wiring board is inserted into the clip portion. After being fixed by soldering to the conductor portion, the connecting portion is cut to separate the input terminal and the output terminal connected to the clip portion from the metal substrate.

[0009]

1 is a perspective view showing an essential part of a working process showing an embodiment of the present invention, and FIG. 2 is a perspective view showing a working process up to the completion of assembly, which is carried out following the process of FIG. . 1 (A), (B), (C), FIG. 2 (D), (E),
Processing proceeds in the order of (F). FIG. 3 is a partially enlarged perspective view of FIG. 1C, which is a main step of the present invention. FIG. 4 is an enlarged perspective view showing another embodiment of the portion of FIG. FIG. 5 is a processing flowchart of the present invention.

1 to 4, 1 is a metal substrate, 2 is an antenna terminal, 3 is an input terminal, 4 is an output terminal, 5 is a ground terminal, 6 is a printed wiring board (P / P) inside the antenna duplexer.
B), 7 are clip parts, 8 is a resonator, and 9 is a cover. Reference numeral 10 denotes a metal frame, which is wound around a reel 12 as shown in FIG.
Sent out by. In the frame 10, as shown in FIG. 1B, the metal substrate 1 and the antenna terminal 2, the input terminal 3, the output terminal 4, the ground terminal 5, the clip portion 7, etc. of the peripheral portion thereof are previously punched and bent by a die. Has been done,
It is held by tie bars 11 on the porous portions on both sides. The porous portions on both sides are pilot holes for processing the frame 10 with a progressive die. In order to continuously assemble with an automatic machine, the above-mentioned metal substrates 1 are connected in a chain to form a frame 10.
Is configured.

FIG. 1 (B) shows that the metal substrate 1 of the frame 10 supplied in the process of FIG.
It shows a state where the C element and the conductor portion of P / B6 already mounted are incorporated. FIG. 1C shows P in the process of FIG.
/ B6 is inserted into the clip portion 7, the frame 10 is cut in the step, and the clip portion 7 and the conductor portion of P / B6 are soldered in the step, and then the antenna terminal 2,
The input terminal 3 and the output terminal 4 are cut from the metal substrate 1 at the part b.
It is separated, cut and separated from the tie bar 11 at the portion a, and is fixed to the predetermined wiring conductor portion of the P / B 6 by the clip portion 7. FIG. 3 is an enlarged perspective view of the cut portions a and b of the antenna terminal 2 and the output terminal 4, which is a main part of the present invention. In FIG. 3, the antenna terminal 2
Is cut by the metal substrate 1 at the b portion, and the output terminal 4 is further cut by the tie bar 11 of the frame 10 at the a portion. The input terminal 3 and the output terminal 4 have a symmetrical structure, and are not shown. FIG. 4 shows another embodiment in which the cut portion of the antenna terminal 2 is also provided in the portion a of the frame 10 on the tie bar 11 side.

As shown in FIG. 1C, the tie bar that holds the metal substrate 1 directly from the porous portion of the frame 10 is left as it is, and the process proceeds to the step shown in FIG. 2D. Here, the resonator 8 is mounted, the metal cover 9 is incorporated in the process as shown in FIG. 2E, and the remaining tie bars 11 are incorporated in the process.
Is cut to complete the assembly as shown in FIG. In FIGS. 1 and 2, detailed steps not directly related to the present invention, such as an inspecting step and a soldering step, are omitted.

FIG. 6 is a top perspective view (A) and a rear perspective view of a product (antenna duplexer) which has been assembled according to the present invention. The difference from the conventional appearance shown in FIG. 8 lies in the terminal portion on the back surface. That is, according to the present invention shown in FIG. 6 (B), the remaining portion of the connecting portion and the cut surface are observed at the portion where the antenna terminal 2, the input terminal 3, the output terminal 4 and the metal substrate 1 face each other, and are usually applied. There is a different cross section of the element body from the surface-treated surface such as plating. Although the surface treatment is not applied to the cross-section portion, for example, if a material such as nickel silver is selected, there is no practical problem even if the surface treatment is not applied. On the other hand, in the conventional product of FIG. 8B, since the terminal is attached in the subsequent process, the cut surface is not observed, and the remaining portion after the cutting of the joint is naturally not seen.

Regarding the ground terminal 5, the above-mentioned embodiment is a case where it is integrally formed on the metal substrate 1.
FIG. 4 is a cross-sectional view when the ground terminal 5 and the cover 9 are integrally formed. The reference numerals indicate the same parts as described above. In this case, the electrical grounding function is achieved by the metal substrate 1 and the cover 9 via the jacket electrode of the resonator 8 mounted on the metal substrate 1.
Is maintained in a conducting state and secured. Although the above embodiments have been described for an antenna duplexer, it is needless to say that they can be applied to a high frequency bandpass filter using a dielectric resonator.

[0015]

As described in detail above, the following effects can be obtained by implementing the present invention. (1) There is no processing die cost for the input / output terminal unit alone. (2) There is no need for assembly processing costs and dedicated jigs and tools for the input / output terminal unit. (3) Material cost for the input / output terminal unit alone is eliminated. (4) Since the processing assembly of the input / output terminals can be absorbed in the automation line that processes the basic structure part in a chain by the progressive die, the automation process is not interrupted by manual work and the production efficiency is improved. Remarkably improved. (5) Since the dimensional accuracy of the arrangement position of the input / output terminals is improved,
Implementation reliability is improved. From the above, the production efficiency and product quality are improved, and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a manufacturing process showing an embodiment of the present invention.

FIG. 2 is a perspective view of a manufacturing process showing an embodiment of the present invention.

FIG. 3 is a partially enlarged perspective view showing an embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view showing an embodiment of the present invention.

FIG. 5 is a flowchart showing an example of the present invention.

FIG. 6 is a perspective view of a product completed by carrying out the present invention.

FIG. 7 is a cross-sectional view of another product completed by carrying out the present invention.

FIG. 8 is a perspective view of a conventional product.

FIG. 9 is a circuit diagram of an antenna duplexer to which the present invention is applied.

FIG. 10 is a structural example view of a conventional terminal portion.

[Explanation of symbols]

 1 Metal board 2 Antenna terminal 3 Input terminal 4 Output terminal 5 Ground terminal 6 P / B 7 Clip part 8 Resonator 9 Cover 10 Frame 11 Tie bar 12 Reel 13 Foot feed device a, b Terminal cutting part

Claims (1)

[Claims] 1. A tape-shaped metal for manufacturing an input terminal and an output terminal for connecting an external circuit of an antenna duplexer, wherein a circuit element is mounted on a printed wiring board and housed in a metal substrate and a metal cover. The input terminal, the output terminal, the input terminal, and the output terminal are provided at predetermined positions on the peripheral portion of the metal substrate, which are held by tie bars on both edges of the frame and punched into a predetermined shape. The connected clip portion is integrally formed by being connected to the frame and the metal substrate at a connecting portion, and the printed wiring board is inserted into the clip portion and fixed to the conductor portion of the printed wiring board by soldering, and then the connection is made. A method for processing an input / output terminal of an antenna duplexer, wherein the input terminal and the output terminal connected to the clip portion are separated from the metal substrate by cutting the portion.