JPH11218589A - Housing structure of electric parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing structure of electric parts which does not require insert molding, has good working performance and is capable of reducing the cost. SOLUTION: This structure is provided with a case 2 having a side wall 21 and an opening at least at one end, a substrate 6 contained in the case 2, a terminal 9 connected to the substrate 6, a lid 7 covering the opening of the case 2 and whose periphery is positioning inside the side wall, insulation bond S spread at least between the side wall 21 of the case 2 and the periphery of the lid 7, a notch part 26 formed in the opening side of the side wall 21 of the case 2 to introduce the terminal 9 and a flow-out prevention means 91 and 92 for the bond placed in the introducing part from the notch part 26 of the terminal 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for accommodating electric parts such as a vibratory gyroscope.

[0002]

2. Description of the Related Art A conventional storage structure for such an electric component is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-294259, which is shown in FIG. FIG. 20 is an explanatory view showing a conventional electric component storage structure. 20, 221 is a case, 222 is a pin, 223 is a sensor support plate, 224 is an anti-vibration member, 225 is a groove, 226 is a constricted portion, 227 is an anti-vibration material through hole, 228 is a tuning fork unit,
29 is a collar, 230 is a color through hole, 231 is a substrate,
232 is a substrate through hole, 233 is a flexible wiring, 23
4 is a lid, 235 is an electric signal terminal.

An electric signal terminal 235 is insert-molded in a case 221, a cover 234 is put on the case 221, and the case 221 and the cover 234 are bonded with a resin.

[0004]

However, in the prior art, since the electric signal terminal 235 is insert-molded in the case 221, the electric signal terminal 235 must be connected to the substrate 231 by soldering or the like. , Workability was bad. Further, the cost is high due to such poor workability and insert molding.

A first object of the present invention is to provide an electric component storage structure which does not require insert molding, has good workability, and can be manufactured at low cost. A second object of the present invention is to prevent the outflow of the adhesive without using a separate member to prevent the outflow of the adhesive, and to reduce the cost by using the case and the lid together with the lead type. An object of the present invention is to provide a storage structure for an electric component that can be realized. A third object of the present invention is to provide an electric component housing structure in which a part of a step-like terminal is made substantially coincident with a side wall of a case, and an adhesive can be uniformly filled and bonding is not uneven. A fourth object of the present invention is to provide an electric component storage structure that can prevent an adhesive from flowing into a case. A fifth object of the present invention is to provide an electric component which requires only a small amount of adhesive by applying an adhesive only between a terminal located in a side wall and a cutout of a case and a tapered portion of a lid. It is to provide a storage structure. A sixth object of the present invention is to provide a case in which a through-hole in which a seal is affixed to a lid body is provided, and even if the case has a bottom or heats when drying the adhesive, the air in the case expands. It is an object of the present invention to provide a housing structure for an electric component which can escape from a through hole, can use a thermosetting adhesive or the like, and can expand a range of usable adhesives.

[0006]

The first object is to provide a case having a side wall and opening at least one end, a substrate housed in the case, a terminal connected to the substrate,
A cover that covers the opening of the case and whose peripheral edge is located inside the side wall, an insulating adhesive applied at least between the side wall of the case and the peripheral edge of the lid, and an opening in the side wall of the case The first aspect is provided with a notch formed on a side thereof for leading out the terminal, and a means for preventing an adhesive from flowing out provided in a portion of the terminal which is led out from the notch. The second problem is that, in the first means, a width of a portion of the terminal that is derived from the notch is made substantially the same as a width of the notch, and the terminal is bent, The problem is solved by the second means as the outflow prevention means. The third object is that, in the second means, the terminal is formed in a plurality of steps of a vertical plate portion and a horizontal plate portion, and the vertical plate portion of the stepped terminal is substantially flush with the inner surface of the side wall. This is solved by the third means. The fourth problem is solved by the third means, wherein the horizontal plate portion of the step-like terminal is placed on the bottom surface of the notch. The fifth object is that, in any one of the second to fourth means, the lid body has a flat plate portion located at the center, and a tapered portion extending from the flat plate portion and having a peripheral edge directed to the other end side of the case. A notch portion is formed at a position of the taper portion corresponding to the notch portion of the case, the terminal is located in the notch portion of the lid, and a side wall of the case and the case. The present invention is solved by a fifth means in which the adhesive is applied between the terminal located in the notch portion and the tapered portion so as to cover the notch portion of the lid. The sixth
The problem is that in any one of the second to fifth means, the case is a bottomed case with the other end closed, and the lid is provided with a through hole to which a sealing member is attached and closed. It is solved by a sixth means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the present invention, and FIGS. 2A, 2B, 2C, 2D and 2E are a plan view, a front view, a bottom view, a right side view, and a rear view of a vibratory gyroscope. 3A and 3B are longitudinal sectional views showing the vibratory gyroscope through a cover, and rear views of the vibratory gyroscope with the lid removed, FIG.
A, B, and C are a rear view, a left side view, and a bottom view in a state where the vibrator is attached to the substrate with a support member, FIG. 5 is an exploded perspective view of a vibratory gyroscope, and FIGS. 6A, B, C, D, and E is a plan view, front view, bottom view, left side view, and rear view of the lid,
7 is a sectional view taken along line 7-7 of FIG. 6B, and FIG.
9A, B, C, D, and E are a front view, a bottom view, a right side view, a rear view, and a plan view of the case, and FIG. 10 is a view 10-10 of FIG. 9D. FIG. 11 is a perspective view of a lead wire used before the cover is attached, FIG. 12 is an explanatory view of a portion where the lead wire of FIG. 11 is drawn out of the case, and FIG. 13 is a case where a terminal is used. FIG. 14 is an explanatory view of a portion where the terminal of FIG. 13 is drawn out of the case, FIG. 15 is an explanatory view showing a state in which a lid is attached to the case and an adhesive is not applied, FIG.
6 is an explanatory view showing a state where an adhesive is applied from the state of FIG. 15, FIG. 17 is an explanatory view showing a state where a seal is adhered from the state of FIG. 16, FIG. FIG. 19 is an explanatory diagram showing the vibrator viewed from the back surface at the time of driving detection of the vibrator. FIG. 19 is an explanatory diagram showing the dielectric polarization direction of the vibrator viewed from the direction of arrow IV in FIG.

In FIG. 1, reference numeral 100 denotes a vibratory gyroscope incorporating a tripod tuning fork vibrator 1 to be described later. The vibratory gyroscope 100 is mounted and fixed to, for example, a mounting board 101 of a car navigation device.

The vibrator 1 is of a three-leg tuning fork type (or two-leg tuning fork type), and a gyroscope for detecting an angular velocity by generating a vibration component due to a Coriolis force in a rotating system, a piezoelectric transformer, a vibration device, and the like. Used for

As shown in FIG. 5, a vibrating gyroscope 100 has a case 2 having an open top, and a support member which is attached with a base 1A of the vibrator 1 sandwiched between vibration isolating rubbers 3. 4, a flexible wiring board 5 that is thermally welded and fixed to the base end portion 1A of the vibrator 1, a board 6 to which the support member 4 is attached and the vibrator 1 is fixed, and a case in which the board 6 is stored. 2 and a shield cover 8 that covers the integrated case 2 and the cover 7 to shield the outer surface.

The vibrator 1 has a plate-like shape in which a piezoelectric material serving as a driving unit and a detecting unit is laminated on a surface of a constant elastic material such as an elinvar, or is formed entirely of a piezoelectric material serving as a driving unit and a detecting unit. It is a plate-like material, and a drive electrode for driving each vibrating arm and a detection electrode for detecting vibration are formed on the surface of the piezoelectric material.

In this embodiment, the vibrator 1 is a PZT
It is formed of a piezoelectric material such as a plate-like piezoelectric ceramic such as (lead zirconate titanate). As shown in FIG. 18, the front end of the base end 1A is separated by grooves 11,11. Three vibrating arms 12a, 12b, 12c are integrally formed. The dielectric polarization direction of the piezoelectric material in each of the vibrating arms 12a, 12b, and 12c is as shown in FIG. 19, and the dielectric polarization directions are the same in the right and left vibrating arms 12b and 12c. The dielectric polarization directions of the left and right vibrating arms 12b and 12c are symmetrical left and right and up and down. Lower surface (rear surface) of each vibrating arm 12a, 12b, 12c
Are formed of a conductive material on each side, and the drive electrodes 13, 13,.
As shown in FIG. 18B, lands 13a and 13b are formed on the base end 1A so as to extend to the end face 1B of the vibrator 1. The land 13b is connected to the two drive electrodes 13,13. Are electrically connected to an AC drive power supply 15 via a conductive path.
5 are supplied with the same drive voltage to the respective drive electrodes 13, 13,.... One ground electrode 1 on the center vibrating arm 12a
4 are formed. The ground electrode 14 extends to the end face 1B of the vibrator 1 and has a land portion 14a formed at the base end 1A. The ground electrode 14 is at the ground potential due to the wiring path. On the upper surface (front surface) of the vibrator 1, a pair of ground electrodes 16, 16.
Is one ground electrode 16 on the back surface of the central vibrating arm 12a.
Are formed. As shown in FIG.
Four ground electrodes 16, 16 formed on 2b, 12c
.. Extend to the end face 1B of the base end 1A of the vibrator 1 and land portions 16b are respectively formed on the base end 1A. One earth electrode 16 is attached to the center vibrating arm 12a.
Extending to the front of the end face 1B of the
a is formed. Depending on the wiring route, each ground electrode 1
.. Are at the ground potential.

A driving voltage is applied to the piezoelectric material as driving means by the driving electrodes 13, 13,..., The ground electrode 14, and the ground electrodes 16, 16,. According to the dielectric polarization structure shown in FIG. 19, the left and right vibrating arms 12b and 12c are driven to vibrate in the same direction in the X direction, and the center vibrating arm 12a has the opposite phase (1) to the left and right vibrating arms 12b and 12c.
Vibration drive is also performed in the X direction by a phase different by 80 degrees). That is, at some point, the left and right vibrating arms 12
The amplitude of b, 12c in the X direction is opposite to the amplitude of the vibrating arm 12a in the X direction.

A pair of detection electrodes 17a and 17b are formed on the upper surface of the center vibrating arm 12a. Each detection electrode 1
7a and 17b extend to the position of the end face 1B behind the vibrator 1 and have respective detection electrodes 17a and 17b.
Are integrally formed with land portions 17a1 and 17b1. These land portions 17a1 and 17b1 are formed wide at the base end 1A because the land 16a of the ground electrode 16 does not reach the end surface 1B of the base end 1A of the vibrator 1.

Each drive electrode 1 formed on the vibrator 1
Are electrically connected to the conductive pattern (circuit pattern) of the circuit board 6 via the flexible wiring board 5 not shown in FIG. 18, and are shown in FIG. 18 through this conductive pattern. To the AC power source 15. Also, the ground electrodes 14, 16, 16... And the detection electrodes 17a, 17b are also electrically connected to predetermined conductive patterns on the circuit board 6 via the flexible wiring board 5. The flexible wiring board 5 is provided with a vibrator front connection end 5a and a vibrator back connection end 5b, one end of which is bifurcated and thermally welded to the front and back lands of the vibrator 1, respectively. Is provided with a substrate connection end 5c connected to a conductive pattern (not shown) of the substrate 6.

Further, since the vibrator 1 is cantilevered by one supporting member 4, the number of fixing parts is minimized. Further, since the base end 1A of the vibrator 1 is supported by the support member 4, the vibrator 1 is stably supported by the support member 4. Further, since the vibrator 1 is mounted on the circuit board 6 via the vibration isolating rubber 3 of the support member 4, external shock and external vibration given to the circuit board 6 can be buffered by the vibration isolating rubber 3, and It is possible to prevent shock and vibration from being directly transmitted.

In particular, in the three-legged tuning fork type vibrator 1 shown in FIG. 1 and subsequent figures, the left and right vibrating arms 12b and 12c and the central vibrating arm 12a vibrate at phases different from each other by 180 degrees. Therefore, even if vibration occurs at the base end 1A of the vibrator 1, the vibration is extremely small. Therefore, the vibrating arms 12a, 12b, and 12c can vibrate without being restrained by the support in a state where the base end portion 1A is supported by the support member 4, and the driving sensitivity and the detection sensitivity of each vibrating arm do not decrease. .

By the way, the mass of the vibrating arm is m and the X of the vibrating arm is
Assuming that the vibration velocity in the axial direction is v (vector value) and the angular velocity about the Z axis in the rotating system is ω0 (vector value), the Coriolis force F (vector value) is: F = 2m (v × ω0) (× is And the Coriolis force F is proportional to the angular velocity ω0. Therefore, the angular velocity ω0 is determined by detecting the deformation vibration of the vibrating arm 12a in the Y-axis direction by the detection electrode.

When the vibrator 1 is placed in a rotating system having an angular velocity about the Z axis, the Coriolis force F shown by the above equation gives
Each of the vibrating arms 12a, 12b, and 12c has a vibration component in the Y direction. Since the phases of the vibrations due to the drive voltage are opposite between the vibrating arms 12b and 12c on both sides and the central vibrating arm 12a, the phases of the vibrations due to the Coriolis force are also different.
12c is opposite to the vibrating arm 12a. That is, at a certain time, the amplitude directions on the Y axis due to the Coriolis force of the vibrating arms 12b and 12c are the same, and the center vibrating arm 12a
The amplitude direction on the Y axis is opposite to that of the vibrating arms 12b and 12c.

The detection electrodes 17a and 17b are formed on the same surface of the central vibrating arm 12a,
Function as a Coriolis force detecting means. Since the dielectric polarization directions of the piezoelectric material in the portions where the detection electrodes 17a and 17b are formed are opposite to each other, the detection electrode 17a and the detection electrode 17b have a phase difference of 180 degrees with respect to the vibration component in the Y direction due to the Coriolis force. A detection output is obtained by the piezoelectric action. By taking the difference between the detection outputs from the two detection electrodes 17a and 17b, the absolute values of the detection outputs from the detection electrodes 17a and 17b are added. From this detection output, it becomes possible to calculate the angular velocity ω component around the Z axis.

As shown in FIGS. 3, 4 and 5, the base 1 A of the vibrator 1 is supported by a support member 4 while being sandwiched between vibration-proof rubbers 3. As shown in FIG. 5, the support member 4 includes a support member case 41 and a support member lid 42 that is attached and fixed to the support member case 41 in which the vibration-proof rubber 3 is stored. The support member case 41 is formed by bending a metal plate, and as shown in FIG. 5, a square plate-shaped bottom plate portion 41a, and side plate portions 41b, 41b, 41b formed by bending the three sides thereof. Side plate 41
b, the fixing piece 4 of the support member lid 42 projecting from the upper end of
1c, the positioning piece 41d of the vibration-proof rubber 3 cut inward from the opposing side plates 41b, 41b, and the foot 41e for attachment to the substrate 6 projecting from the upper end of the side plate 41b. Has become. The support member lid 42 has a slit 42a into which a fixing piece 41c, a foot 41e, or the like is inserted.
Are formed.

The anti-vibration rubber 3 includes first and second anti-vibration rubbers 3.
As shown in FIG. 5, the first vibration-proof rubber 31 has a concave portion 31a into which the base end portion 1A of the vibrator 1 is fitted.
And a notch 31b for pulling out the flexible wiring board 5 welded and fixed to the base end 1A of the vibrator 1, and a pair of walls 31c, 31c constituting the notch 31b are provided. The second anti-vibration rubber 32 has a rectangular plate shape, and has cutout portions 32a, 32a on both sides where the wall portion 31c of the first anti-vibration rubber 31 is fitted.

Then, the first vibration isolating rubber 31 is fitted into the supporting member case 41. The vibrator 1 in which the flexible wiring board 5 is thermally welded and fixed to the base end 1A of the vibrator 1
The base end portion 1A is connected to the concave portion 31 of the first rubber 31 for vibration isolation.
a, and further attaches the second rubber 32 for vibration isolation to the vibrator 1.
Are fitted into the notches 32a, 32a of the second vibration-proof rubber 32 on the walls 31c, 31c of the first vibration-proof rubber 31 so as to sandwich the base end 1A.
And a fixing piece 41c protruding from the slit 42a.
Is bent, whereby the support member 4 is attached to the vibrator 1.

By inserting the foot portion 41e of the support member 4 into a slit (hole 6b) of the substrate 6 and soldering the back surface, as shown in FIG.
And is attached to the substrate 6 by the support member 4 via.
In the case of this embodiment, the base end 1A of the vibrator 1
Each vibrating arm 12a, 12b, 12c is used with its upper side.

The case 2 is formed of a synthetic resin in the shape of a rectangular box having an upper opening, and as shown in FIGS.
A rectangular bottom 20, side walls 21, 21... Formed on four sides of the bottom 20, and an inner surface of the side wall 21 are provided.
Height-determining step 22 for determining the height of the substrate, fixing ribs 23 for fixing the substrate 6 by fitting it into the notch 6a of the substrate 6 and fixing the substrate 6 by caulking the protruding portion, and opposing side walls 21 and 21. Tapered portions 24, 24, which are provided on the outer surface of the
4, and a convex step portion 25 serving as a receiving portion when the retaining claw 87 of the shield cover 8 is bent.
A notch 26 for taking out the terminal 9 of the board 6 out of the case 2, a positioning guide pin 27 of the board 6, and an outer surface of the bottom 20, which serve as a guide when the shield cover 8 is inserted. A tapered portion 28 is provided. The bottom surface 26a of the notch 26 is a flat surface as shown in FIG. The case 2 and the lid were made of PBT.
A synthetic resin material called engineering plastic such as (polybutylene terephthalate), PPS (polyphenylene sulfide), ABS (acryl butadiene styrene) or the like can be used, and PBT is preferable in terms of heat resistance and strength. The case 2 may also have an opening at the bottom, and the bottom opening may be closed by attaching a bottom cover.

A detection circuit and the like are mounted on the substrate 6.
As shown in FIGS. 4 and 5, a notch 6 a into which the fixing rib 23 is fitted, an insertion hole 6 b into which the mounting foot 41 e of the support member case 41 is inserted, and a guide hole into which the guide pin 27 is inserted. 6c and a terminal 9 connected and fixed to a pattern connected to a detection circuit and the like. 61 is a semi-fixed variable resistor mounted on the substrate 6. The terminal 9 will be described later.

The lid 7 is formed in a rectangular plate shape as a whole so as to be positioned inside the side wall 21 of the case 2 and to close the opening. As shown in FIGS. A concave portion (inner bottom portion) 71 whose concave side is formed on the (case) side.
And a side portion 72 formed so as to surround the concave portion 71, and an inclined surface portion 73 formed along a peripheral edge on the upper surface side of the flat plate portion 70.
And a shield cover 8 protruding from the upper surface of the flat plate portion 70.
Tapered portions 74, 74 serving as guides for inserting the
The case 2 is provided with a through hole 75 for venting air and the like in the case 2 when heating is performed at the time of bonding between the case 2 and the case 2, and a cutout portion 76 for leading out the terminal 9 formed in the side portion 72.

The lid 7 has an inverted dish shape as a whole. When the lid 7 is covered so as to cover the opening of the case 2, as shown in FIGS. A groove G is formed by the inclined surface 73 of the lid 7 and the upper end of the side wall 21 of the case 2 along the periphery (joint portion between the lid 7 and the case 2). By filling the concave portion G with the adhesive S (the portion having a grid-like shading), the adhesive S can be applied only to the joint between the lid 7 and the case 2. In addition, the tips of the four corners of the side portion 72 contact the substrate 6,
The cover 7 is prevented from falling into the case 2.

The shield cover 8 is formed by bending a single metal plate. As shown in FIGS. 2 and 5, a rectangular top plate 81 is bent at obtuse angles from both long sides of the top plate 81. A pair of first side plates 82, 82 formed,
A pair of auxiliary side plates 83 bent from both side edges of the first side plate 82, and a pair of second side plates 84 bent from both short sides of the top plate 81;
A locking hole 85 formed near the free end of the auxiliary side plate 83;
A cut-and-raised claw 86 formed near the tip of the second side plate 84 and snapped into the locking hole 85;
4, a retaining claw 87 of the case 2 formed at the tip of
A fixing claw 88 for fixing to the mounting board 101 formed at the tip of the first side plate 82 is provided. Therefore, the first side plate 8 extending more than 90 degrees with respect to the top plate 81
By pushing the 2, 82, the cut-and-raised claw 86 is snapped into the locking hole 85 to form a rectangular box-shaped shield case 8 as shown in FIG.

Next, features of the present invention will be described.

As described above, the terminals 9, 9,.
Is attached and fixed. Such a substrate 6 is attached to the case 2
Then, the upper end of the fixing rib 23 is fixed by heat caulking. Each terminal 9 is drawn laterally through the inside of the notch 26 of the case 2. When the lid 7 is further placed over the opening of the case 2, the notches 76 of the lid 7 are arranged corresponding to the notches 26 of the case 2, respectively.
4, as shown in FIG. 15 and the like, a lead-out hole for pulling out each terminal 9 is formed by the cutout portion 26 and the cutout portion 76.

By the way, the case 2 and the lid 7 can use lead wires R as shown in FIGS. 11 and 12 instead of terminals. Since the lead wire R has a larger diameter than the terminal 9, the lead-out holes (26, 76) need to be sized so as to allow the lead wire R to pass through. C is a connector. Then, when the terminal 9 is passed through the lead-out holes (26, 76), the lead-out hole is too large to form a gap, and when the case 2 and the lid 7 are bonded to each other, the adhesive flows from the gap into the case 2 or the case 2. There is a possibility that the adhesive leaks out to the side surface of No. 2 and the bonding is not completely performed or a connection failure occurs in an internal circuit.

Therefore, as shown in FIG. 4, FIG. 13 and FIG. 14, the terminal 9 of this embodiment is in the shape of a long plate,
First, a first horizontal plate portion 91 bent and formed at a substantially right angle
A first vertical plate portion 92 bent upward at a substantially right angle from the first horizontal plate portion 91; and a second horizontal plate portion 93 bent substantially at a right angle from the first vertical plate portion 92 Consisting of two stages. When the substrate 6 is mounted in the case 2, as shown in FIG.
The lower surface of the first horizontal plate portion 91 is placed just on the bottom surface 26a of the cutout portion 26 of the case 2 so that there is no gap, and the inner surface side of the first vertical plate portion 92 is Groove G
Is set along the inner surface of The width of the terminal 9 is determined by the notch 26 of the case 2 and the notch 76 of the lid 7.
(That is, the width of the terminal 9 is the same or slightly smaller than that of the notches 26 and 76).

Therefore, the first horizontal plate portion 91 of the terminal 9
The notch 26 of the case 2 and the notch 7 of the lid 7
6, the adhesive S filled in the groove G can be prevented from leaking into the case 2. Further, the first vertical plate portion 92 can prevent the adhesive S filled in the groove G from leaking to the side surface of the case 2. The means for preventing the adhesive S from flowing out is configured in this manner.

The notch 26 of the case 2 and the lid 7
The notch 76 is bent in two steps to form the first horizontal plate 91 and the like of the terminal 9 so as to have substantially the same shape as the inner surface of the groove G, so that the adhesive G is filled in the groove G. Then, the adhesive S is evenly and uniformly filled in the groove G, and the case 2 and the lid 7 can be stably fixed.

Here, the method of assembling the case 2 and the lid 7 will be described. The substrate 6 is guided into the case 2 by the guide pins 27, and the fixing ribs 23 of the case 2 are fixed by caulking. Next, as shown in FIG. 15, the lid 7 is placed over the opening of the case 2, and an epoxy resin-based thermosetting type is formed in a groove G formed along the joint between the case 2 and the lid 7. The adhesive S is applied with a dispenser or the like (see FIG. 16), and the terminal 9 is taken out by the thermosetting adhesive S (see FIG. 16).
76) is covered. Thereafter, the adhesive S is dried and cured by heating. Even if the air in the case 2 expands due to the heating, the air can escape from the through hole 75, so that the case 2
Also, the lid 7 is not damaged. Thereafter, as shown in FIG. 17, the through hole 75 of the case 2 is covered with a seal 102.

As the adhesive, an insulating adhesive such as an epoxy-based or silicon-based adhesive can be used, and an epoxy resin-based thermosetting adhesive is preferable from the viewpoint of heat resistance and adhesive strength. An ultraviolet curable adhesive may be used. The viscosity of the adhesive is normal temperature (20 °
If a slightly higher value of about 500 poise is used in C),
It may be hard to leak.

In the above embodiment, the case 2 having the side wall 21 and opening at least one end is provided.
The substrate 6 housed in the case 2, the terminal 9 connected to the substrate 6, the lid 7 covering the opening of the case 2, and having a peripheral edge located inside the side wall 21, and at least the side wall 21 of the case 2 and the lid 7, an insulating adhesive S applied between the peripheral edge of
A notch 26 formed on the opening side of the side wall 21 of the case 2 for leading out the terminal 9, and an adhesive outflow preventing means (91, 91) provided on a portion of the terminal 9 leading out from the notch 26.
92), the terminal 9 is not insert-molded in the case 2, so that workability is good and cost reduction is possible. In the above embodiment, the width of the portion of the terminal 9 derived from the notch 26 is made substantially the same as the width of the notch 26, and the terminal 9 is bent so that the outflow preventing means (91 , 92), the terminal 9 is used as the outflow prevention means (91, 92), so that the outflow of the adhesive S can be prevented without using a separate member for the outflow prevention. And case 2
In addition, the cost can be reduced because the lid 7 can also be used. In the above embodiment, the terminal 9 is formed in a plurality of steps having a vertical plate portion 92 and horizontal plate portions 91 and 93, and the vertical plate portion 92 of the stepped terminal 9 is substantially the same as the inner surface of the side wall 21. In this case, the case 2 can be miniaturized. In addition, since a part of the stepped terminal 9 is made substantially coincident with the side wall 21 of the case 2, the adhesive S can be uniformly filled and adhered. There is no unevenness. In the above embodiment, the horizontal plate portion 91 of the stepped terminal 9 is placed on the bottom surface 26a of the cutout portion 26, so that the flow of the adhesive S into the case 2 is more reliably prevented. it can. In the above-described embodiment, the lid 7 includes the flat plate portion 70 located at the center and the inclined surface portion (taper portion) 73 extending from the flat plate portion 70 and having a peripheral edge toward the other end of the case 2. A notch 76 is formed on the inclined surface 73 at a position corresponding to the notch 26 of the case 2, the terminal 9 is located in the notch 76, and the side wall 21 and the notch 26 of the case 2 are provided. The adhesive S is applied between the terminal 9 located inside and the inclined surface 73 so as to cover the notch 76 of the lid 7.
Is applied only between the terminal 9 located in the side wall 21 and the notch 26 and the inclined surface 73 of the lid 7, the amount of the adhesive S can be reduced. In the above embodiment, the case 2 is a bottomed case 2 with the other end closed, and the cover 7 is provided with a through-hole 75 that is closed with a sealing seal 102 attached thereto. Therefore, even if the case 2 has a bottom, even if the adhesive S is heated when it is dried, the air in the expanding case 2 can escape from the through hole 75, and the thermosetting adhesive or the like can be used. Can be used to expand the range of adhesives that can be used. If a semi-fixed variable resistor 61 in the case 2 is provided corresponding to the through hole 75, the through hole 7
Adjustment work can also be performed by inserting a driver or the like from 5.

[0040]

According to the first aspect of the present invention, since the terminals are not insert-molded in the case, the workability is good and the cost can be reduced. According to the second aspect of the present invention, since the terminal is used as the outflow prevention means, the outflow of the adhesive can be prevented without using a separate member for the outflow prevention, and the lead type is used. The cost can be reduced by using the case and the lid together. According to the third aspect of the present invention, since a part of the stepped terminal is made substantially coincident with the side wall of the case, the size can be reduced, the adhesive can be uniformly filled, and the adhesion is not uneven. According to the fourth aspect of the invention, it is possible to more reliably prevent the adhesive from flowing into the case. According to the fifth aspect of the present invention, the amount of the adhesive can be reduced by applying the adhesive only between the terminal located in the side wall and the notch of the case and the tapered portion of the lid. According to the invention as set forth in claim 6, the through-hole in which the seal is affixed to the lid is provided, so that even if the case has a bottom, the case expands even when heated when drying the adhesive. The air inside can escape from the through hole,
A thermosetting adhesive or the like can be used, and the range of usable adhesives is expanded. Also, if a semi-fixed variable resistor in the case is provided corresponding to the through hole, a driver or the like can be inserted through the through hole to perform the adjustment operation.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIGS. 2A, 2B, 2C, 2D, and 2E are a plan view, a front view, a bottom view, a right side view, and a rear view of the vibratory gyroscope.

FIGS. 3A and 3B are a longitudinal sectional view showing a cover of the vibrating gyroscope and a rear view of a state in which a lid is removed.

FIGS. 4A, 4B, and 4C are a rear view, a left side view, and a bottom view of a state in which a vibrator is attached to a substrate with a support member.

FIG. 5 is an exploded perspective view of the vibration gyroscope.

FIGS. 6A, 6B, 6C, 6D, and 6E are a plan view and a front view of a lid;
It is a bottom view, a left side view, and a rear view.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6B.

FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 6E.

FIG. 9 is a front view, a bottom view, a right side view, a rear view, and a plan view of A, B, C, D, and E of the case.

FIG. 10 is a cross-sectional view taken along line 10-10 of FIG. 9D.

FIG. 11 is a perspective view of a case where a lead wire is used and before a cover is attached.

FIG. 12 is an enlarged sectional view of a portion where a lead wire of FIG. 11 is drawn out of a case.

FIG. 13 is a perspective view of a case where terminals are used and before a cover is attached.

FIG. 14 is an enlarged cross-sectional view of a portion where the terminal of FIG. 13 is pulled out of a case.

FIG. 15 is an explanatory diagram showing a state in which a lid is attached to a case and an adhesive is not applied.

FIG. 16 is an explanatory diagram showing a state where an adhesive is applied from the state of FIG. 15;

FIG. 17 is an explanatory view showing a state in which a seal has been attached from the state of FIG. 16;

FIG. 18A is a diagram illustrating the vibrator viewed from the front surface and FIG. 18B illustrates the vibrator viewed from the rear surface when detecting driving of the vibrator.

FIG. 19 is an explanatory diagram showing the direction of dielectric polarization of the vibrator viewed from the direction of arrow IV in FIG. 18;

FIG. 20 is an explanatory view showing a conventional electric component storage structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibrator 2 Case 6 Substrate 7 Lid 9 Terminal 21 Side wall 26 Notch 26a Bottom 61 Semi-fixed variable resistor 70 Flat plate 73 Inclined surface 75 Through hole 76 Notch 91,93 Horizontal plate 92 Vertical plate 102 Seal for sealing (seal member) G Groove S S Insulating adhesive

Claims (6)

[Claims] 1. A case having a side wall and opening at least one end, a substrate housed in the case, a terminal connected to the substrate, and an opening of the case, with a peripheral edge inside the side wall. A lid body, an insulating adhesive applied between at least a side wall of the case and a peripheral edge of the lid body, and a notch formed on an opening side of the side wall of the case for leading out the terminal. And a means for preventing an adhesive from flowing out provided at a portion of the terminal that extends from the notch. 2. The outflow prevention means according to claim 1, wherein a width of a portion of the terminal leading out from the notch portion is made substantially equal to a width of the notch portion, and the terminal is bent. A storage structure for electrical parts, characterized in that: 3. The terminal according to claim 2, wherein the terminal is formed in a plurality of steps having a vertical plate portion and a horizontal plate portion, and the vertical plate portion of the stepped terminal is substantially flush with the inner surface of the side wall. A storage structure for electrical parts, characterized in that: 4. The electric component storage structure according to claim 3, wherein a horizontal plate portion of the stepped terminal is placed on a bottom surface of the notch. 5. The lid according to claim 2, wherein the lid body includes a flat plate portion located at a center and a tapered portion extending from the flat plate portion and having a peripheral edge toward the other end of the case. A notch is formed at a position of the tapered portion corresponding to the notch of the case, and the terminal is located in the notch of the lid, and a side wall of the case and a side of the case are provided. The storage structure for an electrical component, wherein the adhesive is applied between the terminal located in the notch portion and the tapered portion so as to cover the notch portion of the lid. 6. The through-hole according to claim 2, wherein the case is a bottomed case with the other end closed, and a sealing member is attached to the lid to be closed. A storage structure for electrical parts, characterized by being provided with: