JP2002217671A - Connecting component of vibrator, vibrator unit, and mounting structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide by a simple configuration a connecting component of a vibrator which excels in its mounting property, and to provide a vibrator unit and the mounting structure thereof. SOLUTION: An insulation member of a rectangular parallelepiped has through holes correspondingly to the two lead wires of a cylindrical vibrator which pierce the insulation member from its one-plane side to its opposite other-plane side. On its four side-surface corner-portions, four electrode-patterns are formed respectively, and on its one-plane, a connecting pattern for connecting thereby its electrode-patterns positioned diagonally is so formed and is so passed on its one through-hole as to connect the connecting pattern with its one through-hole. Then, by using such two insulation members, their planes having no formed connecting pattern are so joined to each other as to join the through hole of one insulation-member which is connected with the connecting pattern thereof to the through hole of the other insulation member which is not connected with the connecting pattern thereof. Consequently, the connecting component of the vibrator is configured. Further, by joining the cylindrical vibrator to the connecting component of the vibrator, a vibrator unit is configured. Moreover, the vibrator unit is mounted on a circuit board via the electrode-pattern forming surfaces of the connecting component of the vibrator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrator, and more particularly to a vibrator unit using the vibrator, a vibrator unit using the vibrator, and a vibrator mounting structure that facilitates mounting on a circuit board. .

[0002]

2. Description of the Related Art In recent years, small information devices such as portable telephones and portable computers have made remarkable progress in downsizing and weight reduction. In addition, there is a demand for a surface mount type and a reduction in size and thickness.

FIG. 1 is a perspective view of a cylindrical quartz resonator 1. The container of the cylindrical quartz resonator 1 includes a sealing tube 2, a metal ring 3,
It is composed of an insulating member 4, two lead wires 5, and the like, and contains a rectangular crystal piece obtained by processing a crystal into a rectangular shape. The surface of the metal ring 3 is subjected to soft metal plating such as high melting point solder plating as necessary. For the lead wire 5, a metal round bar made of, for example, Kovar or the like, whose surface is coated with copper as a base layer, and whose surface is plated with high melting point solder is used.

FIG. 2 is a perspective view of the internal structure of the cylindrical quartz resonator 1. In the rectangular crystal blank 6, the X-axis direction described in the figure is referred to as a rectangular crystal blank short direction, the Y-axis direction is referred to as a rectangular crystal blank longitudinal direction, and a rectangular crystal blank plane including the X axis and the Y axis is a main surface. Call. Electrodes 7 are formed on both sides of the main surface, respectively.
The two inner lead wires 5A are electrically connected to one end in the longitudinal direction of one side main surface of the rectangular crystal blank 6 by the conductive member 8 by one support, and the plane including the two inner lead wires 5A and the rectangular quartz crystal are connected. The plane including the main surface of the piece 6 is parallel.

FIG. 3 is a diagram in which a simple mounting type crystal resonator 1A formed by molding an outer lead wire 5B of the cylindrical crystal resonator 1 is mounted at a predetermined position on a circuit board 9, and FIG.
(B) is a top view. In the simple mounting type crystal resonator 1A, when the cylindrical crystal resonator 1 is mounted on the circuit board surface, the main surface of the rectangular crystal piece 6 is parallel to the circuit board surface, and the tip portions of the two outer lead wires 5B ( Part to be fixed to the circuit board)
The outer lead wire 5B is formed such that a plane including the same is the same as the mounting surface. Land patterns 9A, 9 for soldering simple mounting type crystal unit 1A to circuit board 9
B and 9C are formed, and a simple mounting type crystal resonator 1A is mounted in accordance with the position of the land pattern.

[0006]

The simple mounting type crystal unit shown in FIG. 3 corresponds to mounting by bending the outer lead wire 5B. However, since the outer lead wire 5B has a very small diameter of 0.2 mm to 0.3 mm, there is a problem that a stress is applied to the bent portion, causing a crack or breakage. Further, since the soldering area at the tip of the outer lead wire 5B is small, the mounting strength is weak, and there is a problem that the soldered portion is peeled or broken.

[0007] If the bending accuracy of the two outer lead wires 5B is poor, the horizontal position of the soldered portion varies, so that solder mounting becomes impossible or the mounting height varies. is there.

Further, in a structure in which a rectangular crystal resonator is mounted at a predetermined position on a flat circuit board, the mounting surface of the circuit board is parallel to the main surface of the rectangular crystal piece. When an impact is applied in a direction perpendicular to the surface, the rectangular crystal piece may be broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a vibrator connection component, a vibrator unit, and a mounting structure thereof having a simple structure and excellent mountability.

[0010]

A rectangular parallelepiped insulating member corresponding to two lead wires of a cylindrical vibrator and having a through hole penetrating from one plane side to the other opposite plane side. Four electrode patterns are formed on each of the side corners of the member, and a connection pattern for connecting the electrode patterns located at opposite corners of the electrode pattern is formed on one of the planes. Is an insulating member having a configuration passing through one of the through holes and being connected to the through hole, wherein the two insulating members are used, and the surfaces on which the connection pattern is not formed are connected to the connection pattern. A connecting part of the vibrator is formed by joining the through-hole and the through-hole not connected to the connection pattern so as to match.

A diagonally extending groove is formed in a plane of the insulating member where the through hole is formed, a connection pattern is formed at the bottom of the groove, and the connecting pattern is connected to one of the through holes. Connected parts.

Two lead wires of a cylindrical vibrator are inserted and fixed in through holes of a connecting part of the vibrator formed of two insulating members, and one of the lead wires is connected to a connection pattern of the first insulating member. And the other lead wire is connected to the connection pattern of the second insulating member, and the lead wire is
Each is a vibrator unit that is electrically connected to the electrode patterns located at diagonals of the electrode patterns formed at the side corners of the connecting parts of the vibrator.

A vibrator unit that can be mounted on a circuit board on any of the four electrode pattern forming surfaces of the connection component.

In the mounting structure of the vibrator unit on a circuit board, the mounting structure of the vibrator unit is mounted such that the mounting surface of the circuit board and the short side direction of the main surface of the rectangular vibrating piece are perpendicular to each other.

[0015]

An embodiment of the present invention will be described with reference to the drawings. 4A and 4B are views showing an insulating member forming a connection part of the vibrator of the present invention, wherein FIG. 4A is a front view, FIG. 4B is a top view, FIG. 4C is a bottom view, FIG. (E) is a right side view, and (F) is a rear view. FIG. 5 is a perspective view of an insulating member forming a connecting part of the vibrator of the present invention. The insulating member 10 is formed in a block shape, and has through holes 11a and 11b from the front side to the back side. The insulating member 10 is made of various engineering plastics, ceramics, or the like. 10a, 10b,
Reference numerals 10c and 10d denote electrode patterns formed at the side corners of the insulating member 10, respectively, formed by nickel plating or gold plating by electroless plating. 1
0e is a connection pattern for connecting the electrode pattern 10a and the electrode pattern 10c located on the diagonal. The connection pattern 10e passes over one of the through holes 11a and is connected to the through hole 11a. 11ba
Is a pattern extended from the through hole 11b. 1
1aa is a pattern extended from the through hole 11a.

FIG. 6 is a view showing a connecting part of the vibrator of the present invention. FIG. 6A is a perspective view for explaining a combination of insulating members.
(B) is a perspective view of a completed connection component of the vibrator. The connecting part 12 of the vibrator is configured by using the two insulating members 10 described above. The combination of the two insulating members 10 is such that the surfaces on which the connection pattern 10e is not formed face each other, and the through hole 11a connected to the connection pattern 10e and the through hole 11b not connected to the connection pattern 10e. They are joined together to complete. At this time, the through holes 11a, 11b
The extended patterns 11aa and 11ba are in contact with each other to make electrical connection.

FIGS. 7A and 7B are views showing connecting parts of the vibrator of the present invention, wherein FIG. 7A is a front view, FIG. 7B is a top view, FIG. 7C is a bottom view, FIG. () Is a right side view, and (F) is a rear view. With reference to FIG. 7, the electrode pattern of the connection component of the completed vibrator will be described. First insulating member 10
Pattern 10a provided on the second and the second insulating member 10
Are located on the same plane,
The electrode pattern A is formed. Similarly, the first insulating member 1
0 and the second insulating member 1
The electrode pattern B is constituted by the electrode pattern 10d provided on the first insulating member 10, and the electrode pattern C is constituted by the electrode pattern 10b provided on the first insulating member 10 and the electrode pattern 10b provided on the second insulating member 10. , First insulating member 10
Electrode pattern 10c provided on the second insulating member 10
The electrode pattern D is constituted by the electrode pattern 10a provided in the above. The electrode patterns A, B, C, and D are connected to the land patterns of the circuit board, respectively.
And electrode pattern D, electrode pattern A and electrode pattern B,
The connection with the land pattern is made possible by the surface of the four combinations of the electrode pattern C and the electrode pattern D. The connecting part 12 of the vibrator has a through hole 1
An outer lead of a cylindrical vibrator is inserted into the inner space 1a, 11b.

FIG. 8 is a perspective view for explaining the connection between the connecting part of the vibrator of the present invention and the cylindrical vibrator. FIG. 9 is a perspective view showing the connecting part of the vibrator of the present invention and the cylindrical vibrator. It is the figure which comprised the unit, (A) is a front view and (B) is a bottom view. 6 and 7, the through-hole 1 of the connecting part 12 of the vibrator is used.
The outer leads 13 of the cylindrical vibrator 14 are provided at 1a and 11b.
a and 13b are inserted and joined to the connection part 12 of the vibrator to form a vibrator unit. At this time, a conductive member 19 is applied to the end of the outer lead 13a so that electrical connection is made via a pattern 11ba extended from the through hole 11b. The outer lead 13a is electrically connected to a connection pattern (not shown) of the first insulating member 10. On the other hand, the outer lead 13
As for b, a conductive member 19 is applied to its end, and is electrically connected to the connection pattern 10e of the second insulating member 10.

FIGS. 10A and 10B are views showing another embodiment of the connecting part of the vibrator according to the present invention, wherein FIG. 10A is a perspective view, and FIG. 10B is a partial view showing a state where the cylindrical vibrator is joined. FIG. Reference numeral 15 denotes a connecting part of the vibrator, which is obtained by combining and joining two insulating members 16 in the same manner as described with reference to FIG. The insulating member 16 is formed with a connection pattern 16b for connecting an electrode pattern 16a formed at a corner of the side surface and an electrode pattern (not shown) located at a diagonal to the electrode pattern 16a. Here, the connection pattern 16b has a configuration formed at the bottom of a groove 16c provided in the same shape as the pattern shape. With the above configuration, as shown in FIG. 10B, when the cylindrical vibrator is joined, contact between the metal ring 14a and the connection pattern 16b is prevented.

FIGS. 11A and 11B show a state in which the vibrator unit of the present invention is mounted on a circuit board. FIG. 11A is a front view, and FIG.
Is a rear view, and (C) is a right side view. (The outer lead end and the conductive member shown in FIG. 9 are omitted.)
The vibrator unit constituted by inserting the outer leads 13a and 13b of the cylindrical vibrator 14 into the through holes of the connecting part 12 of the vibrator described in the above is mounted on the circuit board 17. The land patterns 17a and 17b provided on the circuit board 17 are connected to the electrode patterns B and D of the connecting parts 12 of the vibrator by soldering or the like (not shown). The electrode pattern B and the electrode pattern C, and the electrode pattern A and the electrode pattern D are configured to be electrically connected by the connection pattern 10e.

FIG. 11 shows a mounting structure of a vibrator unit mounted so that the mounting surface of the circuit board 17 and the main surface of the rectangular vibrating piece 18 inside the cylindrical vibrator 14 are perpendicular to each other. is there. In order to obtain the above mounting structure, the electrode pattern B and the electrode pattern D are connected to the land patterns 17 a and 17 b of the circuit board 17.
7 can be mounted so that the mounting surface of the circuit board 17 and the short side direction of the main surface of the rectangular vibrating reed 18 are perpendicular to each other.

Further, an electrode pattern A and an electrode pattern B,
The mounting can be performed using the electrode pattern C and the electrode pattern D, and mounting can be performed using any of the four electrode pattern forming surfaces of the connection component 12 of the vibrator.

FIG. 12 is a view showing another example of a connecting part of the vibrator of the present invention. A broken line in FIG. 12 indicates a rectangular vibrating reed. In the above mounting structure, the support structure of the rectangular vibrating reed of the cylindrical vibrator is set so that the plane including the lead wire and the plane including the main surface of the rectangular vibrating reed are parallel to each other as shown in FIG. The explanation was given with the supported one as an example, for example,
Even if the rectangular vibrating piece is a cylindrical vibrator having a structure in which the vibrating piece is supported obliquely between two lead wires, as shown in FIG.
By changing the positions of the through holes 11a and 11b, a mounting structure is obtained in which the mounting surface is perpendicular to the lateral direction of the main surface of the rectangular vibrating reed.

[0024]

By using the vibrator connecting part of the present invention, bending of the outer lead wire is not required, and problems such as cracks and breaks are eliminated. Also, there is no variation in the horizontal position of the soldered portion due to the difference in bending accuracy, and there is no variation in the mounting height.

Since the electrode pattern provided on the vibrator connecting part is connected to the land pattern of the circuit board, the soldering area is widened and a firm fixing is possible.

Since the diagonally extending groove is formed in the plane of the insulating member and the connection pattern is formed at the bottom of the groove, contact between the metal ring of the cylindrical vibrator and the connection pattern can be prevented.

Since the vibrator unit is formed by joining the cylindrical vibrator to the connecting parts of the vibrator, the mounting can be performed with a simple configuration. Further, mounting can be performed on the four electrode pattern forming surfaces of the connection component of the vibrator.

The mounting structure is such that the mounting surface of the circuit board and the short side of the main surface of the rectangular vibrating piece in the cylindrical vibrator are perpendicular to each other. Disappears.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cylindrical quartz resonator.

FIG. 2 is a perspective view of the internal structure of the cylindrical quartz resonator.

FIGS. 3A and 3B are diagrams showing a simple mounting type crystal resonator formed by molding outer lead wires of a cylindrical crystal resonator at predetermined positions on a circuit board, wherein FIG. 3A is a front view and FIG. 3B is a top view.

FIGS. 4A and 4B are views showing an insulating member forming a connection part of the vibrator of the present invention, wherein FIG. 4A is a front view, FIG. 4B is a top view, FIG. 4C is a bottom view, and FIG. (E) is a right side view, and (F) is a rear view.

FIG. 5 is a perspective view of an insulating member forming a connecting part of the vibrator of the present invention.

FIG. 6 is a view showing a connecting part of the vibrator of the present invention, and FIG.
FIG. 4 is a perspective view illustrating a combination of insulating members, and FIG. 4B is a perspective view of a connection part of a completed vibrator.

FIG. 7 is a view showing a connecting part of the vibrator of the present invention, and FIG.
Is a front view, (B) is a top view, (C) is a bottom view, (D) is a left side view, (E) is a right side view, and (F) is a rear view.

FIG. 8 is a perspective view for explaining connection between a connecting part of the vibrator of the present invention and a cylindrical vibrator.

FIGS. 9A and 9B are diagrams in which a connecting part of a vibrator of the present invention and a cylindrical vibrator are joined to form a vibrator unit, wherein FIG. 9A is a front view and FIG. 9B is a bottom view.

FIGS. 10A and 10B are views showing another embodiment of the connecting part of the vibrator according to the present invention, wherein FIG. 10A is a perspective view and FIG. 10B is a partial view showing a state where the cylindrical vibrator is joined.

FIG. 11 is a diagram showing a state where the vibrator unit of the present invention is mounted on a circuit board.

FIG. 12 is a view showing another example of the connection component of the vibrator of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical crystal oscillator 1A Simple mounting type crystal oscillator 2 Sealing tube 3 Metal ring 4 Insulating member 5 Lead wire 5A Inner lead wire 5B Outer lead wire 6 Rectangular crystal piece 7 Electrode 8 Conductive member 9 Circuit board 9A Land Pattern 9B Land pattern 9C Land pattern 10 Insulating member 10a Electrode pattern 10b Electrode pattern 10c Electrode pattern 10d Electrode pattern 10e Electrode pattern 11a Through hole 11aa Pattern 11b Through hole 11ba Pattern 12 Transducer connection parts 13a Outer lead wire 13b Outer lead wire 14 Cylindrical vibrator 14a Metal ring 15 Vibrator connection part 16 Insulating member 16a Electrode pattern 16b Connection pattern 16c Groove 17 Circuit board 17a Land pattern 17b Land pattern 18 Rectangular Vibrating piece 19 conductive member A electrode pattern B electrode pattern C electrode pattern D electrode pattern

Claims (5)

[Claims] 1. A rectangular parallelepiped insulating member having a through hole corresponding to two lead wires of a cylindrical vibrator and penetrating from one flat surface side to the other flat surface side. Each of the portions has four electrode patterns formed thereon, and a connection pattern for connecting the electrode patterns located at diagonal positions of the electrode pattern is formed on one plane, and the connection pattern has one through-hole. An insulating member having a configuration that passes over the hole and is connected to the through hole, wherein the two insulating members are used, the surfaces on which the connection pattern is not formed, and the through hole connected to the connection pattern, A connection part for a vibrator, wherein the connection part is configured so as to be joined so that a connection pattern and a through-hole that are not connected are aligned. 2. A diagonally extending groove is formed in a plane of the insulating member where a through hole is formed, a connection pattern is formed at the bottom of the groove, and the connection pattern is connected to one of the through holes. The connecting part for a vibrator according to claim 1, wherein: 3. A lead wire of a cylindrical vibrator is inserted and fixed in a through hole of a connecting part of a vibrator made of two insulating members, and one of the lead wires is connected to a first insulating member. Connected to the connection pattern, the other lead is
The lead wires are electrically connected to electrode patterns located at diagonal positions of electrode patterns formed at side corners of the connection part of the vibrator. A vibrator unit characterized by: 4. The vibrator unit according to claim 3, wherein any of the four electrode pattern forming surfaces of the connection component can be mounted on a circuit board. 5. A vibrator, wherein the vibrator unit is mounted on a circuit board so that a mounting surface of the circuit board and a lateral direction of a main surface of the rectangular vibrating reed are perpendicular to each other. Unit mounting structure.