JPH11274879A - Piezoelectric vibrator housing container. piezoelectric vibrator and oscillator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator housing container with which miniaturization can be attained without lowering the reliability of a piezoelectric vibrator or oscillator. SOLUTION: Concerning a housing container 10, within the range capable of arranging a base 61 of a piezoelectric vibrator 60, the width of a vibrator housing chamber 20 at such a section is narrowed so that side frame 303 and 304 of this section are made wide and mechanical strength is secured. Besides, since the piezoelectric vibrator 60 is exactly positioned in the width direction by abutting the base 61 and narrow part 22 of the piezoelectric vibrator 60, it is not necessary to estimate a large positioning error in the width direction in the case of design. On the other hand, since a top end 62 of the piezoelectric vibrator 60 absolutely prevented from contacting to a side frame 30 has a clearance 24 provided with the wide width of the piezoelectric vibrator housing chamber 20, side end parts 63 and 64 of the piezoelectric vibrator 60 do not touch the side frame 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piezoelectric vibrating reed storage container (hereinafter, referred to as a storage container) for storing a piezoelectric vibrating reed, and a piezoelectric vibrator and an oscillator using the storage container. More specifically, the present invention relates to a side frame structure for forming a resonator element storage chamber in a storage container.

[0002]

2. Description of the Related Art In a piezoelectric vibrator or an oscillator, FIG.
Each of (A) and (B) shows a perspective view of a storage container (excluding a lid member) and a plan view of a state where a piezoelectric vibrating reed is arranged in the storage container, as shown in FIG. The piezoelectric vibrating reed 60 having a predetermined electrode pattern 65 formed on the front and back surfaces thereof is stored in the storage container 10 in a sealed state. The storage container 10 is often configured as a laminated ceramic body in which a plurality of ceramic plates each formed into a predetermined shape are laminated. In this laminated ceramic body, for example, the second and third ceramic layers from the bottom are formed. The plate defines, as the side frame 30, a vibrating piece storage chamber 20 for storing the piezoelectric vibrating piece 60 in a flat state. In addition, inside the vibrating reed storage chamber 20, the base plate 61 of the piezoelectric vibrating reed 60 is provided on the lowermost or second ceramic plate.
Is formed, and the electrode pattern 65 located on the base 61 of the piezoelectric vibrating reed 60 is electrically connected to the electrode pattern 45 formed on the mount 40 with a conductive adhesive or the like. Is done. The mount 4
The electrode pattern 45 formed on the storage container 10
Electrode terminals 7 for surface mounting on the back of the container via the outer corners of
1 electrically connected.

[0005] The storage container 10 thus configured has a rectangular planar shape, similar to the planar shape of the piezoelectric vibrating reed 60. In addition, the side frame 30 constituting the resonator element storage chamber 20
Are first and second side frame portions 301 facing each other,
The width dimensions W3 and W4 of 302 and the third and fourth
Since the width dimensions W5 and W6 of the side frame portions 303 and 304 are equal to each other, the planar shape of the resonator element storage chamber 20 is a rectangle slightly larger than the piezoelectric resonator element 60. Accordingly, in the vibrating piece storage chamber 20, the width dimension W1 of the base side area 28 where the base 61 of the piezoelectric vibrating piece 60 is located is equal to the width dimension W2 of the tip side area 29 where the tip side 62 of the piezoelectric vibrating piece 60 is located. . Therefore, when the base 61 of the piezoelectric vibrating reed 60 is fixed to the mount part 40, the side end portions 63, 64 of the piezoelectric vibrating reed 60 are
And the resonator element storage chamber 20 facing the side end portions 63 and 64.
Inner peripheral wall surfaces (third and fourth side frame portions 303, 304)
A constant gap G is secured in the longitudinal direction of the piezoelectric vibrating reed 60 between the piezoelectric vibrating reed 60 and the front end side 62 of the piezoelectric vibrating reed 60 touches the inner peripheral wall of the vibrating reed storage chamber 20. It can vibrate without.

[0004] The storage container 10 constructed as described above is shown in FIG.
As shown in FIG. 1, it is used to manufacture the piezoelectric vibrator 1. As can be seen from this figure, the base 61 of the piezoelectric vibrating reed 60 is fixed to the mount 40 using the conductive adhesive 13 in the storage container 10, and in this state, the piezoelectric vibrating reed 6
0, the container bottom 11, and the piezoelectric vibrating reed 60
A sufficient gap is secured between the tip side 62 of the cover member 12 and the lid member 12. In the case of the piezoelectric vibrator 1, the two electrode terminals 7
1 can supply power to the piezoelectric vibrating reed 60, but in consideration of stability when the piezoelectric vibrator 1 is mounted on a substrate, the surface mounting electrode terminals 71 are provided at any of the four corners on the back surface of the container. May be formed. When the electrode terminal 71 of the four electrode terminals 71 located at a position distant from the mount part 40 is electrically connected to the electrode pattern 45 formed on the mount part 40, the wiring pattern formed on the bottom of the container is required. For example, a conductive material or the like buried in a through hole formed in a ceramic plate is used.

[0005] The storage container 10 is also used for manufacturing the oscillator 2 as shown in FIG. In this oscillator 2, similarly to the piezoelectric vibrator, the base 61 of the piezoelectric vibrating reed 60 is fixed to the mount part 40 with the conductive adhesive 13 in the storage container 10, and in this state, the distal end side 62 of the piezoelectric vibrating reed 60 is A sufficient gap is secured between the cover member 12 and the like. Further, a driving IC 3 for driving the piezoelectric vibrating piece 60 is also mounted in the storage container 10. Also in this oscillator 2, among the electrode terminals 71 for surface mounting formed at the four corners of the back surface of the container, the electrode terminal 71 at a position distant from the mount portion 40 is connected to the electrode pattern 45 formed on the mount portion 40. In the case of electrical connection, a wiring pattern formed on the bottom of the container, a wiring pattern formed on the surface of a ceramic plate laminated in the middle, a conductive material buried in through holes formed on the ceramic plate, and the like are used. Can be

[0006]

The piezoelectric vibrator 1 and the oscillator 2 configured as described above are strongly required to be miniaturized. To meet such a demand for miniaturization, the piezoelectric vibrating piece 60 is required. And the storage container 10
Is ideally downsized, but there is a limit to downsizing the piezoelectric vibrating reed 60. Therefore, the vibrating piece storage chamber 20 is made narrower or the widths W3, W4, W5, and W6 of the side frames 30 of the storage container 10 are uniformly reduced. There is a possibility that the peripheral wall surface may come into contact with the piezoelectric vibrating piece 60 to hinder the vibration of the piezoelectric vibrating piece 60, and the width dimensions W3, W4, W5, W
When 6 is uniformly reduced, the mechanical strength of the storage container 10 is significantly reduced. Therefore, there is a problem that any of these measures is not preferable because the reliability of the piezoelectric vibrator 1 and the oscillator 2 is greatly reduced.

[0007] In view of the above problems, an object of the present invention is to provide:
An object of the present invention is to provide a piezoelectric vibrating piece storage container that can be reduced in size without lowering the reliability of the piezoelectric vibrator or the oscillator.

[0008]

In order to solve the above-mentioned problems, according to the present invention, there is provided a side frame for partitioning a vibrating piece housing chamber for housing a flat piezoelectric vibrating piece in a flat state, In a storage container having a mount portion to which the base of the piezoelectric vibrating reed is fixed in the room, the vibrating reed storing chamber is slightly smaller than the width dimension of the piezoelectric vibrating reed in a base side region where the base side of the piezoelectric vibrating reed is located. A narrow portion formed wider and a tip end region where the tip end side of the piezoelectric vibrating reed is located, formed wider than the narrow portion to secure a gap between a side end portion of the piezoelectric vibrating reed and the side frame. It is characterized in that it has a planar shape provided with a relief portion to be formed.

In the present invention, the base of the piezoelectric vibrating reed is originally fixed to the mount, and the side end of the piezoelectric vibrating reed does not interfere with the side frame. By narrowing the width of the vibrating piece storage chamber within a range in which the base of the piece can be arranged, the piezoelectric vibrating piece is accurately positioned in the width direction by abutting the side end of the base of the piezoelectric vibrating piece with the narrow portion. Also, the tip side (tip side area) where the piezoelectric vibrating reed must absolutely avoid touching the side frame.
In this configuration, a sufficient clearance is secured between the side end of the piezoelectric vibrating reed and the side frame by increasing the width of the vibrating reed storage chamber to form the escape portion. In this relief portion, it is not necessary to allow for a large positioning error in the width direction of the piezoelectric vibrating reed, so that the necessary minimum gap size can be set. Therefore, it is not necessary to unnecessarily reduce the width of the side frame facing the side end of the piezoelectric vibrating reed. Therefore, when the storage container is miniaturized, when viewed from its outer dimensions, even if a piezoelectric vibrating piece having a larger width dimension is accommodated so as to match the width dimension of the narrow portion, the tip side of the piezoelectric vibrating piece contacts the side frame. Never. Further, since the side frame can be made as wide as possible, it is possible to prevent a decrease in mechanical strength of the storage container. Therefore, without reducing reliability
The piezoelectric vibrator and the oscillator can be miniaturized. In addition, since the piezoelectric vibrating reed can be positioned by using the abutting of the base side end of the piezoelectric vibrating reed and the narrow portion, even if the automatic mounting apparatus does not have a special positioning mechanism, the vibration reed housing chamber Thus, the piezoelectric vibrating reed can be accurately positioned at a predetermined position in the width direction. Furthermore, since a wide relief portion is formed in the distal end side region of the vibrating reed storage chamber, when mounting the piezoelectric vibrating reed in the vibrating reed storage chamber, the distal end side of the piezoelectric vibrating reed is mounted on both sides of the automatic mounting device from both sides. Even when the user holds the piezoelectric vibrating reed in the vibrating reed storage chamber by hand, there is a gap between the side end of the piezoelectric vibrating reed and the side frame where the hand can enter.
Therefore, the storage container of the present embodiment also has an advantage that it is suitable for automating the operation of mounting the piezoelectric vibrating reed in the vibrating reed storage chamber.

[0010] In the present invention, the vibrating reed storage chamber preferably has a base side inner peripheral wall surface for positioning the piezoelectric vibrating reed in the longitudinal direction by abutting the base end face of the piezoelectric vibrating reed. preferable. With this configuration, the base end surface of the piezoelectric vibrating piece abuts against the base inner peripheral surface facing the base end surface of the piezoelectric vibrating reed, of the inner peripheral wall surface of the vibrating reed storage chamber. Positioning in the longitudinal direction of the resonator element can be accurately performed. For this reason, in the vibrating reed storage chamber, the distance between the distal end surface of the piezoelectric vibrating reed and the inner peripheral wall surface facing the distal end surface can be reduced to a minimum. That is, when determining the distance between the distal end face of the piezoelectric vibrating reed and the inner peripheral wall surface of the distal end side of the vibrating reed storage chamber, it is not necessary to allow for a large positioning error in the length direction of the piezoelectric vibrating reed. Therefore, the length dimension of the resonator element storage chamber does not need to be lengthened unnecessarily, so that the storage container can be downsized even in the length direction. In addition, the piezoelectric vibrating reed is positioned by abutting the base end surface of the piezoelectric vibrating reed on the inner peripheral wall surface of the vibrating reed housing chamber facing the base end surface of the piezoelectric vibrating reed. Therefore, even in an automatic mounting device having no special positioning mechanism, the piezoelectric vibrating reed can be accurately positioned at a predetermined position in the longitudinal direction in the vibrating reed storage chamber.

In the present invention, for example, the vibrating piece storage chamber has a substantially trapezoidal planar shape whose width dimension continuously increases from the base side region toward the distal end side region. The escape portion may be formed in the distal end region. In addition, the resonator element storage chamber has a planar shape in which a width dimension continuously increases from the base side area toward the tip end side area, and a part having the same width dimension continues from an intermediate position. Thereby, the escape portion may be formed in the front end side region. Further, the vibrating piece storage chamber, after the width dimension is continuously increased from the base side area toward the tip end side area, the width dimension is gradually expanded from the middle position to the middle position. The relief portion may be formed in the front end side region by having a flat shape.

In any of these embodiments, the width of the vibrating piece storage chamber is narrowed as narrow as possible within a range where the base of the piezoelectric vibrating piece can be arranged, so that the side facing the side end of the piezoelectric vibrating piece in the base side region. The frame portion is formed wide. Therefore,
As the mechanical strength of the storage container can be prevented from lowering,
The piezoelectric vibrator and the oscillator can be miniaturized without lowering the reliability.

Further, the vibrating piece storage chamber has a planar shape in which a width dimension continuously increases from the base side area toward the tip end side area, and then decreases from an intermediate position. As a result, the escape portion may be formed in the front end side region. With this configuration, the relief portion has a maximum width at an intermediate position in the length direction of the piezoelectric vibrating reed, so that the side frame is thick at any corner of the side frame. Therefore, the four surface mounting electrode terminals formed on each corner of the back surface of the container overlap the thick portion of the side frame. Therefore, in the bending test on the substrate after the piezoelectric vibrator or the oscillator manufactured using the storage container of this embodiment is surface-mounted on the circuit board, a portion where stress is concentrated (a side frame of a portion where the electrode terminal is located). Is thick and has high strength. Therefore, also from this point, the reliability of the piezoelectric vibrator or the oscillator can be improved. In addition, since the relief portion has a maximum width at a position in the length direction of the piezoelectric vibrating piece, the gripping portion of the piezoelectric vibrating piece is gripped from both sides of the piezoelectric vibrating piece with the hand of the automatic mounting device. When the piezoelectric vibrating reed is disposed in the piezoelectric vibrating reed storage chamber as it is, there is an advantage that a gap into which the hand enters is wide.

In the present invention, the vibrating piece storage chamber has a rectangular planar shape as a whole, and the narrow portion protrudes from an inner peripheral wall surface facing a side end of the piezoelectric vibrating piece in the base side region. May be provided. In this case, the resonator element storage chamber is
It is preferable that the first protrusion is provided on a portion of the piezoelectric vibrating reed which is located at a front end side by a predetermined dimension from a base end surface. With this configuration, a gap is formed between the inner peripheral wall surface of the vibrating reed storage chamber and the side end of the piezoelectric vibrating reed except for the narrow portion in the mount portion. Therefore, after the conductive adhesive is applied to the mount portion, when the base of the piezoelectric vibrating reed is mounted thereon, the excess conductive adhesive extruded from between the mount portion and the base of the piezoelectric vibrating reed is It escapes from the gap between the inner peripheral wall surface of the vibrating piece storage chamber and the side end of the piezoelectric vibrating piece to the upper surface side of the base of the piezoelectric vibrating piece. As a result, there is no excess conductive adhesive between the mount and the base of the piezoelectric vibrating reed,
The base of the piezoelectric vibrating reed can be fixed to the mount portion such that the piezoelectric vibrating reed has an appropriate flat posture.

[0015] In the present invention, the vibrating reed storage chamber is located at a position on the inner peripheral wall facing the side end of the piezoelectric vibrating reed at a position deviating from a front end edge of the piezoelectric vibrating reed in the front end side region. May be provided. Further, the vibrating piece storage chamber may include a third protrusion which is smaller than the first protrusion and protrudes from an inner peripheral wall surface facing a side end of the piezoelectric vibrating piece in the front end region. In any of these forms, it is preferable that the protrusion is formed at a position overlapping with the mounting electrode terminal formed on the back surface of the container. With this configuration, the piezoelectric vibrator or the oscillator can be mounted on the circuit board if the electrode terminals formed at the respective corners on the back surface of the container do not overlap with the thick portion of the side frame but overlap with the protrusion. In the bending test on the board after surface mounting, the part where the stress concentrates (the side frame of the part where the electrode terminal is located) is in a state reinforced with protrusions,
The mechanical strength can be improved. Therefore, the reliability of the piezoelectric vibrator or the oscillator can be improved.

In the present invention, it is preferable that each of the vibrating piece storage chambers has a curved planar shape at each corner. With this configuration, stress concentration does not occur at each corner of the vibrating reed storage chamber, so that the mechanical strength of the storage container is improved.

In the present invention, of the side frames, a first side frame portion facing the base side end surface of the piezoelectric vibrating piece faces the first side frame portion via the vibrating piece housing chamber. Preferably, it is formed to have a narrower width dimension than the second side frame portion. With such a configuration, the portion where the width dimension of the side frame portion is narrow can be reinforced by the wide second side frame portion because the piezoelectric vibrating piece storage chamber is wide. Therefore, the entire side frame (the entire storage container)
As a result, the mechanical strength can be improved.

Such a storage container is used for manufacturing a piezoelectric vibrator in which a piezoelectric vibrating reed is stored in a container, or an oscillator in which a driving IC for the piezoelectric vibrating reed is stored together with the piezoelectric vibrating reed in the container. Can be.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In any of the embodiments described below, the basic configuration is the same as the conventional storage container (piezoelectric vibrating piece storage container) described with reference to FIG. Is attached.

[Embodiment 1] FIGS. 1A and 1B are perspective views of a storage container (excluding a lid member) according to the present embodiment, and a piezoelectric vibrating reed is disposed in the storage container. It is a top view of a state.

In FIGS. 1A and 1B, a piezoelectric vibrating piece 60 used for a piezoelectric vibrator or an oscillator (see FIGS. 9 and 10) is provided on a front surface and a back surface of a plate-shaped quartz piece or the like. Each of the electrode patterns 65 is formed and stored in the storage container 10 in a sealed state. The piezoelectric vibrating piece 60 generally has a rectangular planar shape having a length dimension L0 larger than the width dimension W0, and a part of the electrode pattern is formed as an electrode terminal 66 on both left and right sides of the base 61. ing.

The storage container 10 is formed as a laminated ceramic body in which a plurality of ceramic plates each formed into a predetermined shape are laminated, and has a rectangular planar shape similar to the planar shape of the piezoelectric vibrating piece 60. .

In this laminated ceramic body, for example, the second and third ceramic plates from the bottom are composed of first and second side frame portions 301 and 30 corresponding to short sides of a rectangle.
2 and third and fourth side frame portions 303 and 304 corresponding to the long sides of the rectangle. The side frame 30 has a rectangular external shape as a whole, and defines a vibration piece storage chamber 20 for storing the flat piezoelectric vibration piece 60 in a flat state inside. In the lowermost or second ceramic plate in the resonator element storage chamber 20, a shelf-like mount 40 to which the base of the piezoelectric resonator element 60 is fixed is formed. Electrode pattern 45 is formed. Therefore,
Electrode terminal 6 formed on base 61 of piezoelectric vibrating reed 60
6 is an electrode pattern 45 formed on the mount section 40.
And a conductive adhesive (see FIGS. 9 and 10), the base 61 of the piezoelectric vibrating reed 60 is
It is fixed to 0, and it is in a flat state. In this state, a sufficient gap is secured between the distal end side 62 of the piezoelectric vibrating reed 60 and the bottom of the container and the lid member (not shown). In the case of a piezoelectric vibrator, power can be supplied to the piezoelectric vibrating piece 60 with two electrode terminals. However, in consideration of stability when the piezoelectric vibrator is mounted on a substrate, the four corners on the back surface of the container are taken into consideration. In each of the above, an electrode terminal 71 for surface mounting is formed. Of these four electrode terminals 71, the electrode terminal 71 electrically connected to the electrode pattern 45 formed on the mount portion 40 includes a wiring pattern 72 formed on the bottom of the container and a corner portion of the outer periphery of the container. The formed wiring pattern 73,
Electrical connection with the electrode pattern 45 of the mount section 40 is achieved through a conductive material (not shown) filled in a through hole formed in the ceramic plate. Here, the wiring pattern 72 routed from the mount portion 40 at the bottom of the container is formed at a position corresponding to the side of the piezoelectric vibrating reed 60 so as not to overlap with the piezoelectric vibrating reed 60. Therefore, the wiring pattern 72 and the electrode pattern 65 of the piezoelectric vibrating piece 60 do not come into contact with each other, so that no parasitic capacitance is generated at this portion. Therefore, there is an advantage that the characteristics of the piezoelectric vibrator or the oscillator do not vary.

In the storage container 10 thus configured, the resonator element storage chamber 20 has a rectangular flat shape,
Base side region 28 where base 61 of piezoelectric vibrating reed 60 is located
A narrow portion 22 slightly wider than the width dimension W0 of the piezoelectric vibrating piece 60 is formed in the (region on the side where the mount portion 40 is located). Further, a relief portion 24 wider than the narrow portion 22 is formed in the distal end region 29 where the distal end side 62 of the piezoelectric vibrating piece 60 is located (the region opposite to the side where the mount portion 40 is located). The clearance 24 secures a sufficient gap G between the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the side frame 30.

In forming the narrow portion 22 and the escape portion 24, in the present embodiment, the third and fourth side frame portions 30 facing the side ends 63 and 64 of the piezoelectric vibrating piece 60 are used.
3, 304, the inner edge portions of the piezoelectric vibrating piece 60 extend obliquely toward the opposite side from the base 61 side to the distal end side 62. Accordingly, the width dimensions W5 and W6 of the third and fourth side frame portions 303 and 304 are
The piezoelectric vibrating reed 60 has a large diameter on the side of the base 61, and continuously narrows toward the tip side 62 of the piezoelectric vibrating reed 60 therefrom. Therefore, the vibrating piece storage chamber 20 has a substantially trapezoidal planar shape whose width dimension is continuously increased from the base side area 28 to the distal end side area 29, so that the base 61 of the piezoelectric vibrating piece 60 is A comparison is made between the width W1 of the base region 28 located (the width of the narrow portion 22) and the width W2 of the distal region 29 where the distal end 62 of the piezoelectric vibrating piece 60 is located (the width of the relief portion 24). Then, the width W1 of the base region 28 is smaller than the width W2 of the distal region 29. In this way,
A narrow portion 22 having a small width is formed in the base side region 28 of the resonator element storage chamber 20, and the narrow portion 2 is formed in the tip side region 29.
An escape portion 24 wider than 2 is formed.

The base end face 610 of the piezoelectric vibrating reed 60
The first side frame portion 301 facing the first side frame portion 301 and the second side frame portion 302 facing the first side frame portion 301 via the vibrating piece housing chamber 20 have the same width in the short side direction. Extending. However, since the width of the vibrating reed storage chamber 20 is increased in the front end side region 29, the width of the third and fourth side frame portions 303 and 304 is narrowed in this portion, so that the second side frame portion is provided. The width dimension W4 of the first side frame portion 301 is made larger than the width dimension W3 of the first side
Further, the narrowed portions of the fourth side frame portions 303 and 304 are reinforced.

In the storage container 10 configured as described above, the base 61 of the piezoelectric vibrating piece 60 is originally fixed to the mount 40, and the piezoelectric vibrating piece 60 in this portion (the base side region 28) is provided.
Since the side end portions 63 and 64 have no problem even if they touch the side frame 30, the width of the vibrating piece storage chamber 20 should be narrowed as the narrow portion 22 within a range where the base 61 of the piezoelectric vibrating piece 60 can be arranged. As a result, the width dimensions W5 and W6 of the third and fourth side frame portions 303 and 304 of the base side region 28 are maximized and widened. That is, the base side region 28 is
And the third and fourth parts in this part
The width dimensions W5 and W6 of the side frame portion 30 are set wider than conventional products. On the other hand, on the front end side 62 (the front end side area 29) where the piezoelectric vibrating reed 60 must absolutely avoid contact with the side frame 30, the escape portion 24 is formed by increasing the width of the vibrating reed storage chamber 20. By doing so, a sufficient gap G is secured between the side end portions 63 and 64 of the piezoelectric vibrating reed 60 and the third and fourth side frame portions 303 and 304 of the distal end region 29. Therefore, the tip side 62 of the piezoelectric vibrating piece 60
Can vibrate without touching the inner peripheral wall surface of the resonator element storage chamber 20. As described above, by setting the vibration piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is downsized, the narrow portion 22
Even if the piezoelectric vibrating piece 60 having the width dimension W0 larger than the width dimension of the piezoelectric vibrating piece 60 is stored,
Does not contact the side frame 30. In addition, since the side frame 30 has as wide a portion as possible, the mechanical strength of the storage container 10 is prevented from lowering. Therefore, the size of the storage container 10, the piezoelectric vibrator, and the oscillator can be reduced without lowering the reliability.

Further, the second side frame portion 302 located on the side where the widths of the third and fourth side frame portions 30 are narrower is formed wider than the first side frame portion 301.
The third and fourth side frame portions 303 and 304 are configured to compensate for a decrease in strength due to the reduced width. Therefore, the storage container 10 of the present embodiment includes the third and fourth storage containers.
Even if the side frame portion 30 has a narrow portion, the entire side frame 30 (the entire storage container 10) has strength equal to or higher than that of the conventional product.

Further, on the side where the base 61 of the piezoelectric vibrating reed 60 is located, the width of the vibrating reed storage chamber 20 is reduced by the narrow portion 22, and the width of the third and fourth side frame portions 30 is reduced there. Is becoming wider. On the other hand, on the side where the distal end side 62 of the piezoelectric vibrating reed 60 is located, the second side frame portion 3
0 is formed wider. Therefore, the four electrode terminals 71 for surface mounting formed at each corner of the back surface of the container are:
This means that it overlaps with the thick part of the side frame 30. Therefore, in a bending test on a substrate after a piezoelectric vibrator or an oscillator manufactured using the storage container 10 of the present embodiment is surface-mounted on a circuit board, a portion where stress concentrates (the side where the electrode terminal 71 is located). Since the frame 30) is reinforced and is not damaged, the reliability of the piezoelectric vibrator or the oscillator can be improved from this point as well.

Further, in the storage container 10 of the present embodiment,
When a piezoelectric vibrator or an oscillator is manufactured using the piezoelectric vibrator or the oscillator, the inner peripheral wall surface of the vibrating piece housing chamber 20 and the piezoelectric vibrating piece 6
The piezoelectric vibrating reed 60 is positioned at a predetermined position in the vibrating reed storage chamber 20 by utilizing the contact with zero.

That is, the base-side end surface 610 of the piezoelectric vibrating piece 60 abuts against the base-side inner peripheral wall surface 31 of the inner peripheral wall surface of the vibrating-piece housing chamber 20 that faces the base-side end surface 610 of the piezoelectric vibrating piece 60. Thus, the positioning in the length direction of the piezoelectric vibrating piece 60 is accurately performed. For this reason, in the vibrating reed storage chamber 20, the front end surface 620 of the piezoelectric vibrating reed 60 is
And the distal-side inner peripheral wall surface 3 facing the distal-side end surface 620.
Even if the interval between the piezoelectric vibrating pieces 2 is reduced to the minimum, the distal end face 620 of the piezoelectric vibrating piece 60 and the distal inner circumferential wall 32 of the vibrating piece housing chamber 20 do not touch each other. That is, the piezoelectric vibrating reed 60
When determining the distance between the distal end surface 620 of the piezoelectric vibrating piece 60 and the distal end inner peripheral wall surface 32 of the vibrating piece storage chamber 20, it is not necessary to largely consider a positioning error in the length direction of the piezoelectric vibrating piece 60. Therefore, the length of the resonator element storage chamber 20 does not need to be lengthened unnecessarily, and the storage container 10 (piezoelectric vibrator or oscillator) can be downsized even in the length direction.

In the base region 28 where the base 61 of the piezoelectric vibrating reed 60 is located, the narrow portion 22 is
Since it is formed slightly wider than the width dimension W0 of 0,
When the base-side end surface 610 of the piezoelectric vibrating piece 60 abuts against the base-side inner peripheral wall surface 31 of the vibrating-piece storage chamber 20, the narrow portion 22 is formed on the side end portions 63 and 64 of the base 61 of the piezoelectric vibrating piece 60.
, The piezoelectric vibrating reed 60 is accurately positioned even in the width direction. For this reason, in the vibrating reed storage chamber 20, the escape portion 24, which is formed wide in order to avoid contact with the side end portions 63 and 64 of the distal end side 62 of the piezoelectric vibrating reed 60, also has an inner peripheral wall surface and a piezoelectric vibrating portion. Even if the distance between the side ends 63 and 64 of the vibrating reed 60 is reduced to a minimum, the side ends 63 and 64 of the piezoelectric vibrating reed 60 and the inner peripheral wall surface of the vibrating reed storage chamber 20 opposed thereto come into contact. Nothing. That is, the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the vibrating piece housing
When determining the size of the gap G with respect to the inner peripheral wall surface, it is not necessary to allow for a large positioning error in the width direction of the piezoelectric vibrating reed 60. Therefore, the width dimension of the resonator element storage chamber 20 does not need to be unnecessarily increased, and in this regard, the storage container 10 (piezoelectric vibrator or oscillator) can be downsized in the width direction. Further, the width dimensions W5 and W6 of the side frame 30 facing the side ends 63 and 64 of the piezoelectric vibrating reed 60 (the width dimension W of the portion corresponding to the relief portion 24 of the third and fourth side frame portions 30).
5, W6) does not need to be unnecessarily narrowed, so even in this regard, a reduction in strength can be prevented.

Further, the tip side region 2 of the resonator element storage chamber 20
9, the wide escape portion 24 is formed. When the piezoelectric vibrating reed 60 is mounted in the vibrating reed storage chamber 20, the front end side of the piezoelectric vibrating reed 60 is gripped from both sides by the hand of the automatic mounting device. The piezoelectric vibrating piece 60 is stored in the vibrating piece storage chamber 20 as it is.
Can be inserted between the side end portions 63 and 64 of the piezoelectric vibrating reed 60 and the side frame 30. Therefore, the storage container 10 of the present embodiment is provided with the piezoelectric vibrating reed 6
There is also an advantage that it is suitable for automating the work of mounting the “0”. Moreover, the vibrating piece storage chamber 2 is automatically mounted.
When the piezoelectric vibrating reed 60 is disposed at
Since the piezoelectric vibrating piece 60 can be positioned at a predetermined position in the vibrating piece housing chamber 20 by utilizing the abutment between the inner peripheral wall surface of the piezoelectric vibrating piece 60 and the piezoelectric vibrating piece 60, an automatic mounting apparatus having no special positioning mechanism. However, the vibration piece storage chamber 20
The piezoelectric vibrating piece 60 can be accurately positioned at a predetermined position.

[Embodiment 2] FIGS. 2A and 2B are perspective views of a storage container (excluding a lid member) according to the present embodiment, and a piezoelectric vibrating reed is disposed in the storage container. It is a top view of a state.

2A and 2B, in the storage container 10 of the present embodiment, the vibrating piece storage chamber 20 has an approximately continuous width which is continuously increased from the base region 28 toward the distal region 29. Since it has a trapezoidal planar shape, the resonator element storage chamber 20
The base-side region 28 has a narrow portion 22 having a smaller width dimension, and the distal-side region 29 has a relief portion 24 wider than the narrow portion 22. Having. Therefore, even if the piezoelectric vibrating reed 60 having a width dimension larger than the width dimension of the narrow portion 22 is stored,
The distal end side 62 of the piezoelectric vibrating piece 60 does not contact the side frame 30. In addition, the side end 63 of the base 61 of the piezoelectric vibrating piece 60,
Since the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the small portion 64 with the narrow portion 22, it is not necessary to largely consider the positioning error in the width direction of the piezoelectric vibrating reed 60 in designing each part. In addition, since the side frame 30 has as wide a portion as possible, the mechanical strength of the storage container 10 is prevented from lowering. Therefore, the same effects as those of the first embodiment can be obtained, for example, the size of the storage container 10, the piezoelectric vibrator, and the oscillator can be reduced without lowering the reliability.

Further, in the present embodiment, each of the corner portions R of the resonator element storage chamber 20 is not square but has a curved planar shape. For this reason, since stress concentration does not occur in each of the corner portions R of the resonator element storage chamber 20, the effect that the mechanical strength of the storage container 10 is high is exhibited.

[Embodiment 3] FIG. 3 is a plan view showing a state in which a piezoelectric vibrating reed is arranged in a storage container (excluding a lid member) of the present embodiment.

As shown in FIG. 3, the storage container 10 of this embodiment
With respect to the vibrating piece storage chamber 20, the narrow portion 22 slightly wider than the width of the piezoelectric vibrating piece 60 in the base side region 28 where the base 61 of the piezoelectric vibrating piece 60 is located, and the piezoelectric vibrating piece 6.
In the distal end region 29 where the distal end side 62 is located, the narrow portion 22 is located.
The side ends 63 and 6 of the piezoelectric vibrating reed 60 are formed to be wider.
Escape portion 2 for securing a sufficient gap G between the side frame 30 and the side frame 30
In providing 4, the resonator element storage chamber 20 is formed into a planar shape in which the width dimension is continuously increased from the base side area 28 to the distal end side area 29, and a portion having the same width dimension is continued from an intermediate position. is there.

Also in this embodiment, the base 61 of the piezoelectric vibrating reed 60 is originally fixed to the mount 40, and the side ends 63 and 64 of the piezoelectric vibrating reed 60 in this portion (the base side region 28) touch the side frame 30. Since there is no hindrance, the piezoelectric vibrating reed 6
In a range where the base 61 of the vibration element can be arranged,
Is narrowed as the narrow portion 22, thereby maximally securing the width dimensions W5 and W6 of the third and fourth side frame portions 303 and 304 of the base side region 28 as wide as possible. On the other hand, on the front end side 62 (the front end side area 29) where the piezoelectric vibrating reed 60 must absolutely avoid contact with the side frame 30, the escape portion 24 is formed by increasing the width of the vibrating reed storage chamber 20. By doing so, the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the third and fourth side frame portions 303 and 30 of the front end side region 29 are formed.
4, a sufficient gap G is secured. Further, since the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the side ends 63 and 64 of the base 61 of the piezoelectric vibrating reed 60 and the narrow portion 22, the piezoelectric vibrating reed 6
There is no need to allow for a large positioning error in the width direction of zero. As described above, by setting the vibrating piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is reduced in size, the width becomes larger as the width of the narrower portion 22 coincides with the outer dimensions when the storage container 10 is downsized. Even when the piezoelectric vibrating reed 60 having the dimension W0 is stored, the front end side 62 of the piezoelectric vibrating reed 60 does not contact the side frame 30. In addition, since the side frame 30 has as wide a portion as possible, the mechanical strength of the storage container 10 is prevented from lowering. Therefore, the same effects as those of the first embodiment can be obtained, for example, the size of the storage container 10, the piezoelectric vibrator, and the oscillator can be reduced without lowering the reliability.

Further, the second side frame portion 302 located on the side where the width of the third and fourth side frame portions 30 is narrower is formed wider than the first side frame portion 301.
The third and fourth side frame portions 303 and 304 are configured to compensate for a decrease in strength due to the reduced width. Therefore, the storage container 10 of the present embodiment includes the third and fourth storage containers.
Even if the side frame portion 30 has a narrow portion, the entire side frame 30 (the entire storage container 10) has strength equal to or higher than that of the conventional product.

[Embodiment 4] FIGS. 4A and 4B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a storage container (excluding a lid member) of the present embodiment. .

As shown in FIGS. 4A and 4B, the storage container 10 of the present embodiment has two electrode terminals 71 formed on the back surface of the container. In the storage container 10 of the present embodiment,
The base 61 of the piezoelectric vibrating reed 60 with respect to the vibrating reed storage chamber 20.
The narrow portion 22 slightly wider than the width dimension of the piezoelectric vibrating reed 60 in the base side region 28 where is located, and the narrower portion 22 is formed wider than the narrow portion 22 in the distal side region 29 where the distal side 62 of the piezoelectric vibrating reed 60 is located. In providing the relief portion 24 for securing a sufficient gap G between the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the side frame 30, the vibrating piece storage chamber 20 is moved to the base side region 28.
After the width dimension continuously increases from the middle to the front end side region 29, the width dimension is gradually increased from the middle position to the middle dimension more gradually than to the middle position.

Also in this embodiment, the base 61 of the piezoelectric vibrating reed 60 is originally fixed to the mount 40, and the side ends 63 and 64 of the piezoelectric vibrating reed 60 in this portion (the base side region 28) touch the side frame 30. Since there is no hindrance, the piezoelectric vibrating reed 6
In a range where the base 61 of the vibration element can be arranged,
Is narrowed as the narrow portion 22, thereby maximally securing the width dimensions W5 and W6 of the third and fourth side frame portions 303 and 304 of the base side region 28 as wide as possible. On the other hand, on the front end side 62 (the front end side area 29) where the piezoelectric vibrating reed 60 must absolutely avoid contact with the side frame 30, the escape portion 24 is formed by increasing the width of the vibrating reed storage chamber 20. By doing so, the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the third and fourth side frame portions 303 and 30 of the front end side region 29 are formed.
4, a sufficient gap G is secured. Further, since the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the side ends 63 and 64 of the base 61 of the piezoelectric vibrating reed 60 and the narrow portion 22, the piezoelectric vibrating reed 6
There is no need to allow for a large positioning error in the width direction of zero. As described above, by setting the vibrating piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is reduced in size, the width becomes larger as the width of the narrower portion 22 coincides with the outer dimensions when the storage container 10 is downsized. Even when the piezoelectric vibrating reed 60 having the dimension W0 is stored, the front end side 62 of the piezoelectric vibrating reed 60 does not contact the side frame 30. In addition, since the side frame 30 has as wide a portion as possible, the mechanical strength of the storage container 10 is prevented from lowering. Therefore, the same effects as those of the first embodiment can be obtained, for example, the size of the storage container 10, the piezoelectric vibrator, and the oscillator can be reduced without lowering the reliability.

Further, the second side frame portion 302 located on the side where the width of the third and fourth side frame portions 30 is narrower is formed wider than the first side frame portion 301.
The third and fourth side frame portions 303 and 304 are configured to compensate for a decrease in strength due to the reduced width. Therefore, the storage container 10 of the present embodiment includes the third and fourth storage containers.
Even if the side frame portion 30 has a narrow portion, the entire side frame 30 (the entire storage container 10) has strength equal to or higher than that of the conventional product.

[Embodiment 5] FIGS. 5A and 5B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a storage container (excluding a lid member) of the present embodiment. .

As shown in FIGS. 5A and 5B, in the storage container 10 of the present embodiment, the piezoelectric vibrating piece 60 is located in the base side region 28 where the base 61 of the piezoelectric vibrating piece 60 is located. The narrow portion 22 slightly wider than the width of the vibrating reed 60 and the distal end region 2 where the distal end 62 of the piezoelectric vibrating reed 60 is located
In providing the relief portion 24 formed wider than the narrow portion 22 at 9 to secure a sufficient gap between the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the side frame 30, the vibrating piece storage chamber 20 is provided.
Has a planar shape in which the width dimension W continuously increases from the base side area 28 to the distal end side area 29, and then the width dimension decreases from an intermediate position. Therefore, the escape portion 24
Is the width dimension W2 at an intermediate position in the length direction of the piezoelectric vibrating piece 60.
Is the largest. Nevertheless, the distal end region 29 of the resonator element storage chamber 20 has a width W at any position.
2 is larger than the width dimension W1 of the narrow portion 22 formed in the base side region 28.

In the storage container 10 thus configured, the base 61 of the piezoelectric vibrating reed 60 does not hinder the touching of the side frame 30. By narrowing the width of the single storage chamber 20 as the narrow portion 22, the width dimensions W5 and W6 of the third and fourth side frame portions 303 and 304 of the base side region 28 are maximized.
Widely secured. On the other hand, on the distal end side 62 of the piezoelectric vibrating piece 60, the width of the vibrating piece storage
4, the side end portion 6 of the piezoelectric vibrating piece 60 is formed.
A sufficient gap G is secured between the third and fourth side frame portions 303 and 304 of the front end side region 29.
Further, since the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the side ends 63 and 64 of the base 61 of the piezoelectric vibrating reed 60 and the narrow portion 22, the design of the piezoelectric vibrating reed 60 requires There is no need to allow for a large positioning error in the width direction. As described above, by setting the vibration piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is downsized, the narrow portion 22
Even if the piezoelectric vibrating piece 60 having the width dimension W0 larger than the width dimension of the piezoelectric vibrating piece 60 is stored,
Does not contact the side frame 30. In addition, since the side frame 30 has as wide a portion as possible, the mechanical strength of the storage container 10 is prevented from lowering. Therefore, the size of the storage container 10, the piezoelectric vibrator, and the oscillator can be reduced without lowering the reliability.

Further, the resonator element storage chamber 20 is provided in the base side region 2.
8 has a planar shape in which the width dimension is continuously reduced from the middle position after the width dimension W is continuously increased from the middle side to the tip side region 29. Since the width dimension W2 is maximized in the middle position, the side frame 30 is thick at any corner of the side frame 30. Therefore, the 4 for surface mounting formed at each corner on the back surface of the container.
One electrode terminal 71 overlaps a considerably thick portion of the side frame 30. Therefore, the storage container 10 of the present embodiment
In a bending test on a substrate after a piezoelectric vibrator or an oscillator manufactured by using the method described above is surface-mounted on a circuit board, a portion where stress is concentrated (a side frame 30 where the electrode terminal 71 is located) is reinforced and is not damaged. Therefore, also from this point, the reliability of the piezoelectric vibrator or the oscillator can be improved.

Further, since the width dimension W2 of the relief portion 24 is maximized at an intermediate position in the longitudinal direction of the piezoelectric vibrating piece 60, the piezoelectric vibrating piece 60 is automatically mounted from both sides at a substantially central portion in the longitudinal direction. After grasping with the hand of the device, the piezoelectric vibrating piece 60
When placed in the resonator element storage chamber 20 as it is, there is an advantage that the gap into which the hand can enter is wide.

[Embodiment 6] FIGS. 6A and 6B respectively show a piezoelectric vibrating piece storage container of this embodiment (excluding a lid member).
It is a top view and a back view in the state where the piezoelectric vibrating reed was arranged inside.

As shown in FIGS. 6 (A) and 6 (B), in the storage container 10 of the present embodiment, the piezoelectric element is located in the base side region 28 where the base 61 of the piezoelectric vibrating reed 60 is located. The narrow portion 22 slightly wider than the width of the vibrating reed 60 and the distal end region 2 where the distal end 62 of the piezoelectric vibrating reed 60 is located
In providing the relief portion 24 formed wider than the narrow portion 22 at 9 to secure a sufficient gap G between the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the side frame 30, the vibrating piece storage chamber 2 is provided.
0 has a rectangular planar shape as a whole, but first protrusions 81 protrude from the inner peripheral wall surface facing the side ends 63 and 64 of the piezoelectric vibrating reed 60 in the base region 28. Therefore, the portion where the first protrusion 81 is formed is narrower by that amount, and is the narrow portion 22.

In the storage container 10 configured as described above, the base 61 of the piezoelectric vibrating reed 60 does not hinder the touching of the side frame 30.
The width of 0 is narrowed as the narrow portion 22, and the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the side ends 63 and 64 of the base 61 of the piezoelectric vibrating reed 60 with the narrowed portion 22. Therefore, in designing each part, it is not necessary to allow for a large positioning error in the width direction of the piezoelectric vibrating piece 60. Therefore, it is not necessary to unnecessarily expand the width of the resonator element storage chamber 20, so that the storage container 10 can be reduced in size.
In addition, the third and fourth side frame portions 303 and 304 can be formed wider because the width of the resonator element storage chamber 20 does not need to be unnecessarily expanded, so that the mechanical strength is high. On the other hand, on the front end side 62 (the front end side area 29) where the piezoelectric vibrating reed 60 must absolutely avoid contact with the side frame 30, the escape portion 24 is formed by increasing the width of the vibrating reed storage chamber 20. By doing so, the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the third and fourth side frame portions 303 and 30 of the front end side region 29 are formed.
4, a sufficient gap G is secured. in this way,
By setting the vibrating piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is reduced in size, the width W0 increases as the width of the narrow portion 22 matches with the width of the narrow portion 22 when viewed from its outer dimensions. Even when the piezoelectric vibrating reed 60 is stored, the front end side 62 of the piezoelectric vibrating reed 60 does not contact the side frame 30.
Therefore, without lowering the reliability,
The piezoelectric vibrator and the oscillator can be miniaturized.

Here, the first projection 81 is formed by the piezoelectric vibrating piece 6.
It is formed at a portion located on the front end side by a predetermined dimension L0 from the base end surface 610 of the zero. For this reason, in the mount part 40, except for the narrow part 22, a large gap G <b> 0 is formed between the inner peripheral wall surface of the resonator element storage chamber 20 and the side ends 63 and 64 of the piezoelectric resonator element 60. Therefore, the mounting part 4
After the application of the conductive adhesive to the piezoelectric vibrating piece 60 (see FIGS. 9 and 10), the mounting portion 4
The excess conductive adhesive extruded from between the base member 61 and the base 61 of the piezoelectric vibrating piece 60 is removed from the gap G0 between the inner peripheral wall surface of the vibrating piece storing chamber 20 and the side ends 63 and 64 of the piezoelectric vibrating piece 60. It can escape to the upper surface side of the base 61 of the piezoelectric vibrating reed 60. As a result, since there is no excess conductive adhesive between the mount portion 40 and the base 61 of the piezoelectric vibrating reed 60, the base 61 is fixed to the mount 40 so that the piezoelectric vibrating reed 60 has an appropriate posture. Can be.

In this embodiment, unlike the first embodiment, the width of the first side frame portion 301 is larger than the width W3 of the first side frame portion 301 facing the base end surface 610 of the piezoelectric vibrating piece 60. A second counterpart 30 through the resonator element storage chamber 20;
Of the side frame portion 302 is narrow. Instead, of the third and fourth side frame portions 303 and 304, the second protrusion 8 is located at a position closer to the second side frame portion 302.
2 are formed respectively. Here, the second protrusion 82
Are formed at positions overlapping the surface mounting electrode terminals 71 formed at the corners of the back surface of the container. Further, the first projection 81 is also formed at a position overlapping with the surface mounting electrode terminal 71 formed at the corner of the back surface of the container. Accordingly, in a bending test on a substrate after a piezoelectric vibrator or an oscillator manufactured using the storage container 10 of the present embodiment is surface-mounted on a circuit board, a portion where stress concentrates (the side frame 30 where the electrode terminal is located). ) Are the first and second projections 8
Since it is reinforced with 1, 82 and does not damage, from this point,
The reliability of the piezoelectric vibrator or the oscillator can be improved.

The width dimension W3 of the first side frame portion 301
Since the width W4 of the second side frame portion 302 is smaller than that of the second side frame portion 302,
Can be formed, so that the side ends 63 and 64 of the piezoelectric vibrating piece 60 do not contact the second projection 82.

[Embodiment 7] FIGS. 7A and 7B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a storage container (excluding a lid member) of the present embodiment. .

As shown in FIGS. 7A and 7B, in the storage container 10 of the present embodiment, the piezoelectric vibrating piece 60 has a piezoelectric vibrating piece 60 in the base side region 28 where the base 61 is located. The narrow portion 22 slightly wider than the width of the vibrating reed 60 and the distal end region 2 where the distal end 62 of the piezoelectric vibrating reed 60 is located
In providing the relief portion 24 formed wider than the narrow portion 22 at 9 to secure a sufficient gap G between the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the side frame 30, the vibrating piece storage chamber 2 is provided.
0 has a rectangular planar shape as a whole, but a first protrusion 81 protrudes from the inner peripheral wall surface facing the side end portions 63 and 64 of the piezoelectric vibrating piece 60 in the base side region 28. Therefore, the portion where the first projection 81 is formed is accordingly
The narrow portion 22 has a narrow width.

In the thus constructed storage container 10, the base 61 of the piezoelectric vibrating reed 60 does not hinder the touching of the side frame 30.
The width of 0 is narrowed as the narrow portion 22, and the piezoelectric vibrating reed 60 is accurately positioned in the width direction by abutting the side ends 63 and 64 of the base 61 of the piezoelectric vibrating reed 60 with the narrowed portion 22. Therefore, in designing each part, it is not necessary to allow for a large positioning error in the width direction of the piezoelectric vibrating piece 60. Therefore, it is not necessary to unnecessarily expand the width of the resonator element storage chamber 20, so that the storage container 10 can be reduced in size.
In addition, the third and fourth side frame portions 303 and 304 can be formed wider because the width of the resonator element storage chamber 20 does not need to be unnecessarily expanded, so that the mechanical strength is high. On the other hand, on the front end side 62 (the front end side area 29) where the piezoelectric vibrating reed 60 must absolutely avoid contact with the side frame 30, the escape portion 24 is formed by increasing the width of the vibrating reed storage chamber 20. By doing so, the side end portions 63 and 64 of the piezoelectric vibrating piece 60 and the third and fourth side frame portions 303 and 30 of the front end side region 29 are formed.
4, a sufficient gap G is secured. in this way,
By setting the vibrating piece storage chamber 20 to have an appropriate width for each region, when the storage container 10 is reduced in size, the width W0 increases as the width of the narrow portion 22 matches with the width of the narrow portion 22 when viewed from its outer dimensions. Even when the piezoelectric vibrating reed 60 is stored, the front end side 62 of the piezoelectric vibrating reed 60 does not contact the side frame 30.
Therefore, without lowering the reliability,
The piezoelectric vibrator and the oscillator can be miniaturized.

Also in this embodiment, similar to the sixth embodiment,
The first protrusion 81 is provided at the base end surface 610 of the piezoelectric vibrating piece 60.
Is formed in a portion located on the front end side by a predetermined dimension L0 from the front end. For this reason, in the mounting portion 40, the narrow portion 22
Except for the inner peripheral wall surface of the vibrating piece storage chamber 20 and the piezoelectric vibrating piece 6.
A wide gap G0 is formed between the side ends 63 and 64 of the zero. Therefore, after the conductive adhesive is applied to the mount part 40 (see FIGS. 9 and 10), the piezoelectric vibrating reed 60 is formed.
When mounted, the excess conductive adhesive extruded from between the mount portion 40 and the base 61 of the piezoelectric vibrating piece 60 is:
The base 61 of the piezoelectric vibrating reed 60 is obtained from the gap G0 between the inner peripheral wall surface of the vibrating reed accommodating chamber 20 and the side ends 63 and 64 of the piezoelectric vibrating reed 60.
Escape to the top side of the. As a result, since there is no excess conductive adhesive between the mount portion 40 and the base 61 of the piezoelectric vibrating reed 60, the base 6 is positioned so that the piezoelectric vibrating reed 60 has an appropriate posture.
1 can be fixed to the mount 40.

Further, in the present embodiment, similar to the first embodiment,
As for the second side frame portion 302, the first side frame portion 30
1 and the third and fourth side frame portions 30.
It is configured to compensate for a decrease in strength due to the narrow width of 3, 304.

Further, in the present embodiment, the resonator element storage chamber 2
0 is the side end 63 of the piezoelectric vibrating reed 60 in the front end side region 29;
A third projection 83 smaller than the first projection 81 protrudes from the inner peripheral wall surface facing the second projection 64. Nevertheless, the width W2 of the distal end region 29 of the resonator element storage chamber 20 is larger than the width W1 of the narrow portion 22 formed in the base side region 28 at any location. Therefore, for the front end side region 29, the side end 63 of the piezoelectric vibrating piece 60,
A sufficient gap G is secured between the side frame 30 and the side frame 30. Here, the first and third projections 81 and 83 are formed on the surface mounting electrode terminals 71 formed at the corners on the back surface of the container.
Is formed at a position overlapping with. Accordingly, in a bending test on a substrate after a piezoelectric vibrator or an oscillator manufactured using the storage container 10 of the present embodiment is surface-mounted on a circuit board, a portion where stress concentrates (the side frame 30 where the electrode terminal is located). ) Is reinforced by the first and third projections 81 and 83 and is not damaged, so that the reliability of the piezoelectric vibrator or the oscillator can be improved also from this point.

The term flat plate in this specification includes not only parallel plates but also those subjected to bevel processing and convex processing. Further, in the above embodiment, the description has been made using only the rectangular vibrating reed. However, the present invention is also applicable to vibrating reeds of other shapes such as a tuning fork type.

[0063]

As described above, according to the present invention, the base of the piezoelectric vibrating reed is originally fixed to the mount, and the side end of the piezoelectric vibrating reed at this portion does not hinder the side frame. Therefore, in this part, by narrowing the width of the vibrating piece storage chamber within a range where the base of the piezoelectric vibrating piece can be arranged,
The piezoelectric vibrating reed is accurately positioned in the width direction by abutting the side end of the base of the piezoelectric vibrating reed with the narrow portion. On the tip side (tip side area) where the piezoelectric vibrating reed must never touch the side frame, the width of the vibrating reed accommodating chamber is increased to form an escape portion, so that the side of the piezoelectric vibrating reed is formed. A sufficient gap is secured between the end and the side frame. In this relief portion, it is not necessary to allow for a large positioning error in the width direction of the piezoelectric vibrating reed, so that the necessary minimum gap size can be set. Therefore, it is not necessary to unnecessarily reduce the width of the side frame facing the side end of the piezoelectric vibrating reed. Therefore, when the storage container is miniaturized, when viewed from its outer dimensions, even if a piezoelectric vibrating piece having a larger width dimension is accommodated so as to match the width dimension of the narrow portion, the tip side of the piezoelectric vibrating piece contacts the side frame. Never. Further, since the side frame is made as wide as possible, it is possible to prevent a decrease in mechanical strength of the storage container. Therefore,
The piezoelectric vibrator and the oscillator can be miniaturized without lowering the reliability. In addition, since the piezoelectric vibrating reed can be positioned by using the abutting of the base side end of the piezoelectric vibrating reed and the narrow portion, even if the automatic mounting apparatus does not have a special positioning mechanism, the vibration reed housing chamber Thus, the piezoelectric vibrating reed can be accurately positioned at a predetermined position in the width direction. Furthermore, since a wide relief portion is formed in the distal end side region of the vibrating reed storage chamber, when mounting the piezoelectric vibrating reed in the vibrating reed storage chamber, the distal end side of the piezoelectric vibrating reed is mounted on both sides of the automatic mounting device from both sides. Even when the user holds the piezoelectric vibrating reed in the vibrating reed storage chamber by hand, there is a gap between the side end of the piezoelectric vibrating reed and the side frame where the hand can enter. Therefore, the storage container of the present embodiment also has an advantage that it is suitable for automating the operation of mounting the piezoelectric vibrating reed in the vibrating reed storage chamber.

Further, by contacting the base-side end surface of the piezoelectric vibrating reed with the base-side inner peripheral surface facing the base-side end surface of the piezoelectric vibrating reed, of the inner peripheral wall surface of the vibrating reed storage chamber.
Positioning in the longitudinal direction of the piezoelectric vibrating reed can be accurately performed. For this reason, in the vibrating piece storage chamber, the distance between the distal end surface of the piezoelectric vibrating reed and the inner peripheral wall facing the distal end surface can be reduced to a minimum, and even in the longitudinal direction of the storage container. There is an advantage that the size can be reduced.

[Brief description of the drawings]

FIGS. 1A and 1B are respectively a perspective view of a piezoelectric vibrating piece storage container according to a first embodiment of the present invention, and a plan view showing a state in which a piezoelectric vibrating piece is arranged in the piezoelectric vibrating piece storage container; FIG.

FIGS. 2A and 2B are respectively a perspective view of a piezoelectric vibrating piece storage container according to a second embodiment of the present invention, and a plan view showing a state in which the piezoelectric vibrating piece is arranged in the piezoelectric vibrating piece storage container. FIG.

FIG. 3 is a plan view showing a state where a piezoelectric vibrating reed is arranged in a piezoelectric vibrating reed storage container according to Embodiment 3 of the present invention.

FIGS. 4A and 4B are a plan view and a rear view, respectively, showing a state where a piezoelectric vibrating reed is arranged in a piezoelectric vibrating reed storage container according to Embodiment 4 of the present invention.

FIGS. 5A and 5B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a piezoelectric vibrating reed storage container according to Embodiment 5 of the present invention.

FIGS. 6A and 6B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a piezoelectric vibrating reed storage container according to Embodiment 6 of the present invention.

FIGS. 7A and 7B are a plan view and a rear view, respectively, showing a state in which a piezoelectric vibrating reed is arranged in a piezoelectric vibrating reed storage container according to Embodiment 7 of the present invention.

FIGS. 8A and 8B are a perspective view of a conventional piezoelectric vibrating piece storage container and a plan view of a state where a piezoelectric vibrating piece is arranged in the piezoelectric vibrating piece storing container.

FIG. 9 is a sectional view of a piezoelectric vibrator.

FIG. 10 is a sectional view of an oscillator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piezoelectric vibrator 2 Oscillator 10 Storage container (piezoelectric vibration piece storage container) 20 Vibration piece storage room 22 Narrow part 24 Escape part 28 Base side area where base of piezoelectric vibration piece is located 29 Base side where tip side of piezoelectric vibration piece is located Area 30 Side frame 40 Mounting section 60 Piezoelectric vibrating reed 61 Base of piezoelectric vibrating reed 62 Front end side of piezoelectric vibrating reed 63, 64 Side end of piezoelectric vibrating reed 71 Electrode terminal for surface mounting on backside of container 81 First protrusion 82 Second protrusion 83 Third protrusion 301 First side frame portion 302 Second side frame portion 303 Third side frame portion 304 Fourth side frame portion

Claims (15)

[Claims] 1. A side frame that defines a vibrating piece storage chamber for storing a flat plate-shaped piezoelectric vibrating piece in a flat state, and a mount portion in which the base of the piezoelectric vibrating piece is fixed in the vibrating piece storing chamber. In the piezoelectric vibrating piece storage container, the vibrating piece storing chamber has a narrow portion formed slightly wider than a width dimension of the piezoelectric vibrating piece in a base side region where a base side of the piezoelectric vibrating piece is located; In the distal end region where the distal end side of the piece is located, the planar shape is formed wider than the narrow portion and has a relief portion for securing a gap between the side end portion of the piezoelectric vibrating piece and the side frame. A piezoelectric vibrating reed storage container. 2. The piezoelectric vibrating piece storage chamber according to claim 1, wherein the piezoelectric vibrating piece has a base-side inner peripheral wall surface on which a base-side end surface of the piezoelectric vibrating piece abuts to perform positioning in the longitudinal direction of the piezoelectric vibrating piece. A piezoelectric vibrating reed storage container. 3. The resonator element storage chamber according to claim 1, wherein the resonator element storage chamber has a substantially trapezoidal planar shape whose width dimension continuously increases from the base side region toward the distal end side region. Wherein the relief portion is formed in the front end side region. 4. The vibrating reed storage chamber according to claim 1, wherein the width of the vibrating piece storage chamber is continuously increased from the base side region toward the distal end side region, and then equal from a middle position. A piezoelectric vibrating piece storage container, wherein the relief portion is formed in the front end side region by having a planar shape in which a portion continues. 5. The vibrating piece storage chamber according to claim 1, wherein the width of the vibrating piece storage chamber is continuously increased from the base side region toward the distal end side region, and then the width is increased from an intermediate position. A piezoelectric vibrating piece storage container having a planar shape that expands more gently than an intermediate position, so that the relief portion is formed in the front end side region. 6. The vibrating piece storage chamber according to claim 1, wherein the width of the vibrating piece storage chamber is continuously increased from the base side region toward the distal end side region, and then reduced from an intermediate position. A piezo-electric vibrating reed storage container, characterized in that the relief portion is formed in the front end side region by having a planar shape. 7. The vibrating piece storage chamber according to claim 1, wherein the vibrating piece storage chamber has a rectangular planar shape as a whole, and the base side region has an inner peripheral wall surface facing a side end of the piezoelectric vibrating piece. A piezoelectric vibrating reed container, comprising: a first projection that protrudes to form the narrow portion. 8. The piezoelectric vibrating piece storage chamber according to claim 7, wherein the vibrating reed storage chamber includes the first protrusion in a portion located a predetermined distance from the base end face of the piezoelectric vibrating reed on the front end side. Piezoelectric vibrating piece storage container. 9. The piezoelectric vibrating piece storage chamber according to claim 7, wherein the vibrating reed storage chamber is displaced from a distal end edge of the piezoelectric vibrating reed in the distal end side region of an inner peripheral wall surface facing a side end of the piezoelectric vibrating reed. A piezoelectric vibrating reed storage container comprising a second projection at a position where the piezoelectric vibrating piece is stored. 10. The third vibrating piece storage chamber according to claim 7 or 8, wherein the vibrating piece storage chamber protrudes smaller than the first protrusion from an inner peripheral wall surface facing a side end of the piezoelectric vibrating piece in the distal end region. A piezoelectric vibrating reed storage container, comprising: 11. The piezoelectric vibrating reed container according to claim 7, wherein the protrusion is formed at a position overlapping with a mounting electrode terminal formed on a back surface of the container. 12. The piezoelectric vibrating piece storage container according to claim 1, wherein each of the vibrating piece storing chambers has a curved planar shape at each corner. 13. The vibrating device according to claim 1, wherein a first side frame portion of the side frame facing a base end surface of the piezoelectric vibrating reed is attached to the first side frame portion. A piezoelectric vibrating piece storage container formed so as to have a wider width than a second side frame portion opposed to the piezoelectric vibrating piece via a piece storage chamber. 14. A piezoelectric vibrator, wherein a piezoelectric vibrating reed is accommodated in the piezoelectric vibrating reed storage container defined in any one of claims 1 to 13. 15. An oscillator, wherein a driving IC for a piezoelectric vibrating piece is housed in a piezoelectric element housing container defined in any one of claims 1 to 13 together with the piezoelectric vibrating piece.