JP3022247B2 - Terminals for mounting electronic component devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal for mounting an electronic component device to a substrate or the like, and is applied to, for example, a terminal for mounting a collision detection device used in a vehicle.

[0002]

2. Description of the Related Art Conventionally, mounting terminals used for mounting an electronic component device on a substrate include, for example, mounting terminals 20 of a collision detection device 200 used for a vehicle.
222 will be described with reference to FIGS. 4 and 5. FIG.
Are the mounting terminals 20 and 222 and the signal output terminals 7 and 7 ′ provided on the housing 8 of the collision detection device 200.
2A shows a front view (a) and a bottom view (b) when the 221 is inserted into the substrate 11. FIG. 5 shows the mounting terminal 2.
FIG. 4 shows a side view when the attachment terminals 20 and 222 are bent after inserting the signal output terminals 0 and 222 and the signal output terminals 7 and 7 ′ 221. The method of mounting the collision detection device 200 is as follows. First, the mounting terminals 20, 222 provided with the signal output terminals 7, 7 ', 221 and the semicircular cutouts 20a, 222a (not shown) are attached to the substrate 11 Upper surface 11 of
insertion holes 11d and 11 provided in the substrate 11 from the side of
d ', 11g, 11c, and 11g', respectively.

The contact portions 20 of the mounting terminals 20, 222 and the signal output terminals 7, 7 ', 221
b, 22b '(not shown), 7b, 22b (not shown)
Are inserted until they come into contact with the upper surface 11a of the substrate 11, and the mounting terminals 20, 222 and the signal output terminals 7, 7 ', 22
1 penetrates through the substrate 11. Next, the attachment terminals 20, 222 are bent at the lower end positions of the insertion holes 11d ', 11g', that is, the attachment terminals 20, 222 are bent at the notch portions 20a, 222a (not shown).
The mounting terminals 20 and 222 are caulked by applying a force in a direction parallel to the substrate 11. The mounting terminals 20, 222
The collision detecting device 200 is fixed to the substrate 11 by gripping the substrate 11 between the swaged portions and the contact portions 20b and 22b '. After caulking the mounting terminals 20, 222, the signal output terminals 7, 7 ', 221 and the mounting terminals 20, 222 are soldered to the substrate 11 to electrically connect the collision detection device 200 to detect the collision. The device 200 is to be mounted on the substrate 11.

[0004]

However, in the mounting terminals 20 and 222 shown above, the contact portions 20 and 222 are not provided.
Since the length from b, 22b ′ to the notches 20a, 222a is the same as the thickness of the substrate 11, the notch 2
0a and 222a are located at the lower ends of the insertion holes 11c and 11g '. For this reason, as shown in FIG. 5, the mounting terminals 20, 222 are bent at right angles at the notches 20a, 222a, and the side portions of the mounting terminals 20, 222 are inserted even when the mounting terminals 20, 222 are caulked. Hole 11c,
There is no contact with the side of 11g '. Therefore, in the device 200, the contact portion 2 of the mounting terminals 20 and 222
The substrate 11 cannot be gripped by the swaged portions 0b and 22b ′, and the collision detection device 200 cannot be sufficiently fixed on the substrate 11. In particular, when the mounting terminals 20 and 222 are formed of a thin plate or the like, there is a problem that play is generated in the collision detection device 200, resulting in inaccurate assembly dimensions and reduced workability.

Accordingly, an object of the present invention is to arrange a cutout portion in an insertion hole provided in a substrate so that the side surface of the mounting terminal and the side surface of the insertion hole of the substrate come into contact with each other.
A force is applied to the mounting terminal in the radial direction of the insertion hole and in the thickness direction of the board to hold the electronic component device on the board, and the mounting terminal that does not cause backlash of the electronic component device. To provide.

[0006]

In order to solve the above-mentioned problems, a configuration of the present invention has a contact portion that contacts one surface of a substrate on which an electronic component device is mounted, and a notch portion, Until the contact portion contacts one surface of the substrate, it is inserted into the insertion hole provided in the substrate from one side of the substrate, penetrates the substrate, is bent at the notch, and is bent at the notch. The part protruding to the side of the surface is caulked by applying a force in a direction parallel to the other surface of the substrate, and the substrate is gripped by the caulked portion and the contact portion, so that the electronic component device is A plate-like mounting terminal fixed to a substrate, wherein a length from the contact portion to the cutout portion is smaller than a plate thickness of the substrate.

[0007] The configuration of the second invention, the length up to the cutout portion from the contact portion, characterized in that it is a zero.

[0008]

The first operation of the present invention having the above structure is to make the length from the contact portion to the cutout portion smaller than the thickness of the substrate. When the contact portion is brought into contact with one surface of the substrate, the cutout portion of the mounting terminal can be arranged inside the insertion hole of the substrate. As a result, when a force is applied in the surface direction of the substrate to the mounting terminal that penetrates the substrate and protrudes to the other surface side of the substrate and is caulked, the side surface of the mounting terminal is inserted into the insertion hole. The mounting terminal can apply a load in the thickness direction of the board and in the radial direction of the insertion hole, so that the crimped part of the mounting terminal and the abutting part can grip the board. In addition, the electronic component device can be fixed to the substrate. Therefore, even when the thickness of the mounting terminal is thin, play is not generated between the electronic component device and the board, and the dimensional accuracy of the electronic component device is improved, and the workability of the mounting is also improved. Can be. (Claim 1)

[0009] The second effect, up to a length of the cutout portion from the contact portion is to a zero, the effect is
When the contact portion of the mounting terminal is brought into contact with one surface of the substrate, the position of the cutout portion of the mounting terminal can be arranged at the upper end of the insertion hole of the substrate. This allows
When a force is applied in the direction of the surface of the board to the mounting terminal protruding to the other surface side of the board and caulked, the side surface of the mounting terminal is securely in contact with the side face of the insertion hole, and the mounting is performed. The substrate can be more firmly gripped by the swaged portion of the terminal for use and the contact portion, and the electronic component device and the substrate can be fixed. (Claim 2)

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to specific embodiments. FIG. 1 shows, as a first embodiment of the present invention, mounting terminals 10 and 122 and a signal output terminal 7 provided on a housing 8 of a collision detection device 100 used in a vehicle.
7 ′, 121 are inserted into insertion holes 11c, 1
FIGS. 3A and 3B show a front view (a) and a bottom view (b) when inserted into 1g ′, 11d, 11d ′, and 11g, respectively. FIG. 2 is a side view showing a state where the mounting terminals 10 and 122 are bent and crimped after the mounting terminals 10 and 122 and the signal output terminals 7, 7 ′ and 121 are inserted.

The collision detecting device 100 mainly includes a weight 4 having an eccentric center of rotation and a center of gravity.
And a rotor 1 that rotates together with the rotation of the weight 4, a pair of leaf springs 2 and 3, and a shaft 4 for rotating the weight 4 and the rotor 1. In addition, the collision detection device 10
Reference numeral 0 denotes signal output terminals 7 and 121 for outputting the contact state of the leaf springs 2 and 3 to the outside as electrical signals, and brass attachment terminals 10 and 122 for fixing the collision detection device 100 to the substrate 11. , A cover 9 and a housing 8.

In this embodiment, the signal output terminals 7 and 7 'and the signal output terminal 121 and the mounting terminal 122 are formed separately from each other and integrated by caulking. The terminal 10 was formed as a single piece. Mounting terminal 10, signal output terminals 7, 7 ', signal output terminal 121 and mounting terminal 1
FIGS. 3A, 3B, and 3C show the configuration of No. 22 respectively. In the present embodiment, among the terminals shown in FIG. 3, the signal output terminal 7 'is used as a diagnosis terminal, so that the terminal is not crimped. In this embodiment, the mounting terminal 1
The terminal shapes 0 and 122 were formed by press working.

Next, the relationship between the components and the operation of the collision detection device 100 will be described with reference to FIG. The weight 4 is rotatably attached to the shaft 1, and the center of rotation is located above the center of gravity. When the vehicle collides, deceleration occurs, and an inertial force acts on the weight center of the weight 4 in the direction A in the drawing. The weight 4 rotates in the direction A about the shaft 5 by the inertial force acting on the center of gravity. At this time, the cover 9 is used as a stopper for the weight 4, the cover 9 is brought into contact with the weight 4, and the weight 4 is not rotated in the direction A more than a predetermined rotation amount. When the vehicle is accelerated, acceleration in the direction opposite to the direction of deceleration acts on the weight center of gravity of the weight 4, and the weight 4 rotates in the direction B in the drawing. At this time,
The cover 9 is used as a stopper of the weight 4, the cover 9 is brought into contact with the weight 4, and the weight 4 is not rotated in the direction B by a predetermined rotation amount or more.

The rotor 1 has a first cam 1a and a second cam 1b, is fixed on a weight 4, and shares a shaft 5 with the weight 4. At the time of a vehicle collision, the rotor 1 also rotates in the A direction as the weight 4 rotates in the A direction in the drawing. Further, when the weight 4 rotates in the direction B in the drawing during acceleration of the vehicle, the rotor 1 also rotates in the direction B.

The leaf springs 2 and 3 have contact points 2a and 3a, respectively.
And the first cam 1a and the second cam 1 of the rotor 1, respectively.
b, the rotor 1 is urged in the direction B in the figure.
When the rotor 4 rotates with the rotation of the weight 4 at the time of a vehicle collision, the first cam 1a and the second cam 1b are displaced.
The leaf springs 2 and 3 in contact with the first cam 1a and the second cam 1b of the rotor 1, respectively, are pushed in the direction A in the figure, and the distance between the contact 2a and the contact 3a is reduced. The contact 2a comes into contact with the contact 3a.

The contact state between the contact 2a and the contact 3a is
Detected as an electrical signal from the signal output terminals 7, 7 ', 121 fixedly contacted by the leaf springs 2, 3 and the housing 8, respectively. This electrical signal is used as a collision detection signal. In the above configuration, since the leaf springs 2 and 3 always urge the rotor 1 in the direction opposite to the deceleration direction at the time of a collision, the leaf springs 2 and 3 also have a function of preventing the operation of the collision detection device 100 due to vibration or the like during traveling. Have.

Next, the collision detecting device 10 having the above-described configuration will be described.
The configuration of the mounting terminals 10 and 122 and the signal output terminals 7, 7 ′ and 121 used to fix the “0” to the substrate 11 will be described with reference to FIG. Mounting terminal 1
0, 122 are notch portions 10 cut out in a semicircular shape.
a, 12a, abutting portions 10b, 12b 'that abut against the upper surface 11a of the substrate 11, and fixing portions 10c, 12c' fixed to the housing 8. This fixing part 10
c, 12c 'are fixed to the housing 8 by insert molding. In the present embodiment, the mounting terminals 10 and 122 are formed with the length between the notches 10a and 12a and the contact portions 10b and 12b 'being zero.
The signal output terminals 7 and 121 are connected to the upper surface 11 of the substrate 11.
a, and contact portions 7c and 12c which are in contact with the leaf springs 2 and 3 and are fixed to the housing 8.

Next, a method of fixing the collision detection device 100 to the substrate 11 using the mounting terminals 10, 122 and the signal output terminals 7, 7 ', 121 will be described with reference to FIGS. First, the mounting terminals 10 and 122
And the signal output terminals 7, 7 ′, 121 are inserted from the upper surface 11 a side of the substrate 11 into the insertion holes 1 provided in the substrate 11, respectively.
1c, 11g ', 11d, 11d', and 11g. At this time, the contact portions 10b, 12 of the mounting terminals 10, 122 and the signal output terminals 7, 7 ', 121 respectively.
It is inserted until b ′, 7b, 12b abuts on the upper surface 11a, and penetrates the substrate 11. Here, the mounting terminal 1
The notches 10a and 12a of the insertion holes 11 and 12
c, 11g '.

After the mounting terminals 10, 122 and the signal output terminals 7, 7 ′, 121 are penetrated through the substrate 11, FIG.
The lower surface 1 of the mounting terminals 10 and 122 as shown in FIG.
An external force F is applied to the portion protruding to the side 1b in a direction parallel to the lower surface 11b and caulked. Due to the action of the external force F, the mounting terminals 10 and 122 are
a, 12a to be bent from the mounting terminals 10, 12
2 protruding toward the lower surface 11b side is the lower end 11 of the insertion hole.
It is bent along the lower surface 11b with e and 11f as fulcrums.

In this manner, the mounting terminals 10, 1
22 is an insertion hole 11c along the lower surface 11a of the substrate 11;
A load can be applied in both the radial direction of 1 g (direction C in the figure) and the thickness direction of the substrate 11 (direction D in the figure).
By this load, the substrate 11 can be gripped by the contact portions 10b and 12b 'of the mounting terminals 10 and 122 and the crimped portions thereof, and therefore, compared to the conventional device 200 shown in FIGS. The collision detection device 100 can be more firmly fixed on the substrate 11.

After the collision detection device 100 is fixed on the substrate 11 by the mounting terminals 10 and 122, the signal output terminals 7, 7 'and 121 and the mounting terminals 10 and 122 are fixed.
Is soldered to the substrate 11. By this soldering,
The electrical connection between the collision detection device 100 and the substrate 11 is performed,
Attachment of the collision detection device 100 to the substrate 11 is completed. Note that the signal output terminals 7, 7 ', 121 are fixed to the substrate 11 only by this soldering.

In the above embodiment, the mounting terminal 1
Although 0 and 122 are configured to be insert-molded and fixed to the housing 8, the mounting terminals 10 and 122 may be fixed to the housing 8 by bonding, screwing, or the like. The collision detection device 100 is configured to detect a contact state between the contacts 2a and 3a of the pair of leaf springs 2 and 3,
The collision detection device may be configured to have one or more pairs of leaf springs and detect a plurality of contact states between the contacts.

In this embodiment, the signal output terminals 7 and 7 ', the signal output terminal 121, and the mounting terminal 122 are caulked and integrated, but the signal output terminals 7 and 7' and the signal output terminal 121 are mounted. Terminal 122 may be integrated by welding. In this embodiment, the signal output terminals 7 and 7 ', the signal output terminal 121 and the mounting terminal 12 are used.
2 is formed by caulking and integrally forming those molded separately, and the mounting terminal 10 is formed as a single unit. However, the signal output terminal and the mounting terminal may be entirely formed separately. Alternatively, the configuration may be such that all of the signal output terminals and the mounting terminals are shared. In this embodiment, the mounting terminals 10 and 122 are made of brass.
The attachment terminals 10 and 122 may be made of any material that does not cause cracking or chipping when caulking.

As shown above, the mounting terminal 1
0, 122 of the notch 10a, 12a
b, 12b 'and the notches 10a, 1b
By reducing the length between the contact portions 2a and the contact portions 10b and 12b 'to zero, the mounting terminals 10 and 122 are
When inserted into the insertion holes 11c, 11g 'provided in the holes 1, the notches 10a, 12a can be arranged at the upper ends of the insertion holes 11c, 11g. Thereby, the mounting terminals 10 and 12
Even if the thickness of the plate 2 is thin, the mounting terminals 10 and 122 can be securely caulked, and play occurring between the collision detection device 100 and the substrate 11 can be prevented. improves. Also, mounting terminal 1
Since the caulking of 0 and 122 is reliably performed, a holding jig for fixing the collision detection device 100 is not required in the automated assembly line of the collision detection device 100,
The workability of assembling can be improved.

In this embodiment, the mounting terminals 10, 12
2 notches 10a, 12a and contact portions 10b, 12
The cutouts 10a and 12a are arranged at the upper ends of the insertion holes 11c and 11g 'by reducing the length between the cutouts 10a and 12b to zero. However, the present invention is not limited to this. Insert the notches 10a, 12a into the insertion holes 11c, 1c.
It is good also as a structure arrange | positioned inside 1g. That is, the length from the contact portions 10b, 12b 'of the mounting terminals 10, 122 to the notches 10a, 12a may be smaller than the thickness of the substrate 11.

In this embodiment, the mounting terminals 10, 12
Although the shape of the two notches 10a and 12a is semicircular, the present invention is not limited to this.
Any shape such as a triangular shape, a rectangular shape, or a shape obtained by combining a straight line and a curved line may be used as long as the constriction is formed so that the cross-sectional area of the mounting terminals 10 and 122 is smaller than other portions. In order to avoid cracking or the like of the portion having the minimum cross-sectional area, it is sufficient that the portions having the minimum cross-sectional area of the notches 10a and 12a have a curvature.

In this embodiment, the collision detection device 100 is described as being attached to the substrate 11, but the present invention is not limited to this, and the collision detection device 100 is attached to a plate material other than the substrate 11, a housing, or the like. It is also very effective.

As indicated above, according to the present invention,
By making the length from the contact portion to the notch portion smaller than the board thickness of the substrate, or by forming the notch portion continuously with the contact portion, the contact portion of the mounting terminal is When it is brought into contact with one surface, the cutout portion of the mounting terminal can be arranged inside the insertion hole of the substrate or at the upper end of the insertion hole. As a result, when a force is applied in the direction of the surface of the substrate to the mounting terminal that penetrates the substrate and protrudes to the other surface side of the substrate and is caulked, the side surface of the mounting terminal is inserted into the insertion hole. Since the mounting terminal can contact the side surface and apply a load in the thickness direction of the board and the radial direction of the insertion hole, the crimped portion of the mounting terminal and the contact portion can grip the board, The electronic component device can be fixed to the substrate. As a result, even if the thickness of the mounting terminal is thin, no play occurs between the electronic component device and the substrate, and the dimensional accuracy of the electronic component device is improved, and the workability of the mounting is also improved. be able to.

In the above embodiment, the mounting terminal of the collision detecting device has been described. However, the present embodiment is not limited to this, and may be any mounting terminal of an electronic component device which needs to be mounted on a substrate. For example, the application target is not limited to the collision detection device.

[Brief description of the drawings]

FIG. 1 is a front view (a) and a lower surface (b) of a first embodiment according to the present invention when a mounting terminal and a signal output terminal are inserted into an insertion hole of a substrate.

FIG. 2 is a side view of the mounting terminal and the signal output terminal of the first embodiment according to the present invention when the mounting terminal is bent by inserting the mounting terminal and the signal output terminal into the insertion hole of the board.

FIG. 3 is a structural diagram (a) showing a configuration of a mounting terminal of the first embodiment according to the present invention, a structural diagram (b) showing a configuration of a signal output terminal, and a mounting terminal and a signal output terminal. FIG. 3C is a structural diagram showing the configuration of the shared terminal.

FIG. 4 is a front view (a) and a bottom view (b) when a mounting terminal and a signal output terminal of a conventional collision detection device are inserted into insertion holes of a substrate.

FIG. 5 is a side view when a mounting terminal and a signal output terminal of the conventional collision detection device are inserted into an insertion hole of a substrate, and the mounting terminal is bent.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotor 2, 3 Leaf spring 4 Weight 5 Axis 7, 7 ', 121 Signal output terminal 8 Housing 9 Cover 10, 122 Mounting terminal 10a Notch 10b Contact part 11 Substrate 11a Substrate upper surface 11b Substrate lower surface 11c, 11d, 11d ', 11g, 11g' insertion hole 100 collision detection device

Continuation of the front page (56) References JP-A-4-127605 (JP, A) JP-A-7-17344 (JP, A) JP-A-8-211096 (JP, A) (U, U) Shokai 57-128168 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01K 1/18

Claims (2)

(57) [Claims] An abutting portion that abuts on one surface of a substrate on which the electronic component device is mounted; and a notch portion, wherein the substrate is mounted until the abutting portion abuts on one surface of the substrate. Is inserted into an insertion hole provided in the substrate from one side thereof, penetrates the substrate, and is bent at the cutout portion,
A portion protruding to the other surface side of the substrate is caulked by applying a force in a direction parallel to the other surface of the substrate, and the caulked portion and the contact portion grip the substrate. Thereby, a plate-like mounting terminal for fixing the electronic component device to the substrate, wherein a length from the contact portion to the cutout portion is smaller than a plate thickness of the substrate. Terminal for mounting electronic component devices. Wherein said length from the contact portion to the cutout portion, the mounting terminal of the electronic component device according to claim 1, characterized in that a zero.