JPH0659809B2 - Flashing device for vehicle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle blinking device of a vehicular turning indicator. This vehicle blinking device is used, for example, in an automobile.

[Prior Art] A conventional vehicular turn signal device is known which includes a turn signal light and a blinking device for blinking the turn signal light.
Further, a device described in Japanese Utility Model Publication No. 57-5227 is known as a vehicle blinking device capable of blinking the direction indicator light and generating an alarm sound to confirm the blinking of the direction indicator light.

As shown in FIG. 9, this blinking device comprises an oscillating circuit (not shown), a relay 101, a diaphragm 102, and a case 103 containing all the above components. In the blinking device 100, the oscillation circuit causes the armature plate 104, which is a movable magnetic member of the relay 101, to intermittently swing. The movable contact 109 installed at the tip of the armature spring 112 having elasticity is the fixed contact 1 facing the movable contact 109.
10 is intermittently contacted, and a direction indicator light (not shown) blinks. Further, the striker 105 installed on the armature plate 104 strikes and vibrates the striker 106 installed on the diaphragm 102 to generate an alarm sound (click, click, ...) In conjunction with the blinking operation.

[Problems to be Solved by the Invention] However, the vehicle blinking device has the following problems.

Armature plate 104 when coil 111 is not energized
The position of is determined by the diaphragm 102, and the position of the diaphragm 102 is determined by the position between the case 103 and the lid 108 that crimp and clamp the peripheral edge of the diaphragm 102.

Therefore, the contact gap between the movable contact 109 installed on the armature spring 112 and the fixed contact 110 is equal to the case 1
There was a problem that it was decided only after the lid part 108 was crimped to 03 and the blinking device was assembled. This causes a problem that the contact gap varies from product to product, which causes variations in life and variations in blinking cycle.

In addition to the problem that the contact gap varies due to the variation in the position of the diaphragm 102, the cover portion 10
Even if it was found that the contact gap was defective after the No. 8 was crimped to the case 103, it was difficult to adjust the contact gap thereafter.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle blinking device in which the contact gap of the built-in relay and thus the blinking period can be easily adjusted.

[Means for Solving the Problems] A vehicle blinking device of the present invention includes a case, a relay disposed in the case for connecting and disconnecting electricity to a lamp, and a position separate from the relay in the case. In a flashing device for a vehicle, which is provided with a diaphragm that sounds an alarm while interlocking with the intermittent operation of the relay, the relay includes a coil that generates an electromagnetic force that fluctuates according to a change in energization current, and a striking. An armature plate that has a portion and swings according to the fluctuation of the electromagnetic force to strike the diaphragm by the striking portion, and a fixed member that is disposed in a circuit that supplies power from the power source to the lamp to intermittently energize the lamp. The movable contact and the movable contact are fixed, and the movable contact is brought into contact with and separated from the fixed contact by being urged by swinging of the armature plate. It is characterized in that it comprises a contact spring that.

[Operation] In this vehicle blinking device, the oscillation circuit causes an intermittent current to flow through the coil of the relay, and the coil causes the armature plate to periodically oscillate by electromagnetic force.

Then, the armature plate intermittently strikes the adjacent diaphragm at one end thereof to generate an alarm sound.

Further, the armature plate periodically oscillates the contact spring, and the movable contact fixed to the contact spring periodically contacts the fixed contact of the relay to blink the lamp.

[Effects of the Invention] As described above, in the blinking device of the present invention, the armature plate for striking the diaphragm of the relay strikes the fixedly supported contact spring independently of the armature plate, and this contact Since the movable contact fixed on the spring is operated, the following effects can be obtained.

The contact gap when the movable contact and the fixed contact are separated can be set regardless of the position of the diaphragm. Therefore, if the contact gap of the relay is adjusted and inspected before the relay is housed in the case, the contact gap does not change even when the case and the diaphragm are assembled, and the relay operates with a good blinking cycle. .

[Embodiment] (Structure) An embodiment of the device of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of the blinking device. However, for easy understanding, the case body 11 and the lid portion 12 are shown in cross section. FIG. 2 is a plan view of the interior of the device of FIG. 1 with the lid 12 and the diaphragm 3 removed. FIG. 3 is a front view showing the main part of the relay 2. Fig. 4 shows spring 2
It is a partial top view which shows the attachment state of FIG. FIG. 5 is a plan view showing a locked state of the spring 23 and the first relay terminal 26. FIG. 6 is a plan view showing the fixed contact 21 and the second relay terminal 27 in a locked state. FIG. 7 is an electric circuit diagram of an automobile direction indicator using the blinking device of this embodiment. FIG. 8 shows the armature plate 41.
FIG. 6 is a plan view showing a locked state between the armature spring 44 and the armature spring 44.

In FIG. 1, the case 1 includes a case body 11 and a lid portion 12.
And base 13. Further, the relay 2 and the diaphragm 3 are built in the case 1.

Specifically, the case 1 includes a cylindrical resin-made case body 11 having a storage space in the center, and a lid 12 fixed to the upper opening of the case body and closing the upper opening. And a resin base 13 that is screwed into the lower opening of the case body 11 to close the lower opening.

The base 13 includes a base 131, a winding frame (coil spool) 132 shown in FIG. 3, and an upper surface 133. Base part 1
31 has a cylindrical body shape with a threaded surface 15 on the outer peripheral side wall,
The threaded surface 15 is screwed onto a threaded surface formed on the inner peripheral surface of the case body 11. The winding frame part 132 of FIG. 3 is integrally molded so as to stand upright on the base part 131, and has a cylindrical shape with a through hole inside. The upper surface 133 is the winding frame 132.
Is a pedestal that is integrally formed on the upper part of and mounts each component of the relay.

The relay 2 includes an electric circuit unit and a magnetic circuit unit.

The electric circuit section includes a fixed contact 21, a movable contact 22 that contacts the fixed contact 21, a contact spring 23 that supports the movable contact 22, and a first coil (hereinafter referred to as a current coil) 2
4, second coil (hereinafter referred to as voltage coil) 25, relay terminals 26, 27 and 28, and external terminal 29,
It includes a capacitor 30, a capacitor 31, and a resistor 32.

Reference numerals 24 and 25 are coils used in the present invention.

As shown in FIG. 6, the fixed contact 21 is welded downward to the upper portion of the conductive second relay terminal 27.

The conductive second relay terminal 27 is press-fitted and fixed to the base 131 of the base 13. Second relay terminal 27
Hook portions 91 and 92 for electrically connecting one ends of the current coil 24 and the voltage coil 25 are provided in the lower part of the table as shown in FIG.

The movable contact 22 has a contact spring 23 as shown in FIG.
The contact spring 23 is fixed to the conductive first relay terminal 26 by a rivet 82.

The conductive first relay terminal 26 has a groove 93 for electrically connecting the capacitor 31 and the resistor 32, as shown in FIG.
As shown in FIG. 4, the upper surface 1 of the base 13 has a base 94.
It is fixed to 33 with rivets.

The electrically conductive third relay terminal 28 of FIG. 2 is for electrically connecting the capacitor 31 and the other end of the voltage coil 25, and as shown in FIG.
It is fixed at 3. Further, the third relay terminal 28 is provided with a groove portion 95 for press-fitting a lead wire (not shown) of the capacitor 31 and a hook portion 96 for connecting the voltage coil 25.

The external terminal 30 is press-fitted and fixed to a base 131 of the base 13 as shown in FIG. 1, and a hook portion 100 for connecting to the current coil 24 and a groove portion 101 for connecting to the resistor 32 are provided on the upper portion thereof. With.

The voltage coil 25 is wound around the winding frame portion of the base 13, one end of which is connected to the hook portion 92 of the second relay terminal 27 of FIG. 6 and the other end of which is the third relay terminal 28 of FIG. It is connected to the hook portion 96.

The current coil 24 is wound around the outer circumference of the voltage coil 25, and one end of the current coil 24 is hooked on the hook portion 9 of the second relay terminal 27 shown in FIG.
1 and the other end is the hook portion 100 of the external terminal 30 (FIG. 1)
Respectively connected to.

The resistor 32 has groove portions 94, 10 provided in the first relay terminal 26 (FIG. 2) and the external terminal 30 (FIG. 1), respectively.
A lead wire is press-fitted and connected to 1 and held.

The capacitor 31 shown in FIG. 2 is sandwiched between the upper surface portion 130 and the base portion 131 of the base 13, and the lead wire is provided in the groove portion 93 provided in the first relay terminal 26 and the third relay terminal 28 for electrical connection. It is press-fitted into each 95.

The magnetic circuit section has an armature plate 41, a yoke 43, an armature spring 44, and a core 42 shown in FIG.

The yoke 43 is a conductive magnetic member and is fixed to the base portion 131 of the base 13 by inserting it through a hole (not shown) provided in the lower surface of the base portion 131 of the base 13 as shown in FIG. ing. Further, the yoke 43 is bent into an L shape to form a magnetic circuit, and is bent downward again at the bent portion 48 to form the external terminal 29. The tips 49 of the external terminals 29 are thinned by pressing or the like and are connected to an external connector (not shown). That is, the relatively thick yoke and the thin external terminal are integrally formed by forging.

The core 42 at the center of the coil penetrates through the through hole of the winding frame portion 132 of the base 13 as shown in FIG.

The armature plate 41 is caulked and fixed to an armature spring 44 as shown in FIG.

As shown in FIG. 2, the tip of the armature plate 41 has a projection 99 that holds the protruding portion 98 of the contact spring 23 and separates the movable contact 22 from the fixed contact 21.

The armature spring 44 is an elastic body and is a yoke 43.
It is fastened and fixed.

The diaphragm 3 is formed by drawing a metal plate and is sandwiched between the case body 11 and the lid 12.

The sandwiching metal ring 16 sandwiches the case main body 11, the diaphragm 3 and the lid 12 to fix them by caulking.

The hit element 3a is a metal rod, penetrates the central portion of the diaphragm 3 and is fixed to the diaphragm 3, and is attached so as to abut the back surface of the armature plate 41.

(Assembly) An assembling method of the present device will be described below.

First, the relay 2 is attached to the base 13. The diaphragm 3 having the hit element 31 is attached to the case main body 11 and the lid 1.
Hold with 2.

Next, the base 13 is assembled to the case body 11 so that the relay 2 on the base 13 is housed in the case body 11,
The base 131 of the base 13 is screwed onto the inner peripheral surface of the case body 11 to complete the assembly.

(Structure of Vehicle Direction Indicator Device Using This Blinking Device) A vehicle direction indicator device using the vehicle blinking device of this embodiment will be described below with reference to the electric circuit diagram of FIG.

This device consists of a car battery 61 and a key switch 62.
And a blinking circuit 63, a turn signal switch 64, and left and right direction indicator lights 65 and 66. Reference numerals 65 and 66 are lamps referred to in the present invention. The automobile battery 61 is a vehicle power source whose minus terminal is grounded, and its plus terminal is connected to the external terminal 29 of the blinking device 63 via the key switch 62.

The other external terminal 30 of the blinking device 63 is connected to the left and right vehicle direction indicator lights 65 and 66 via a winker switch 64, and the other ends of the vehicle direction indicator lights 65 and 66 are respectively grounded to the vehicle frame. .

The blinking device 63 has a normally closed contact 80 of the relay 2 and a current coil 24 connected in series between the external terminals 29 and 30.

The capacitor 31 and the voltage coil 25 connected in series are connected in parallel with the normally closed contact 80, and the resistor 32 is connected to the external terminal 29.
Connected between 30 and 30.

The normally-closed contact 80 is composed of the movable contact 22 and the fixed contact 21, and is a contact for connecting and disconnecting the current of the turn signal lamp. The turn signal switch 64 is a changeover switch for changing over the left and right direction indicator lights 65 and 66 of the vehicle.

The voltage coil 25 and the current coil 24 are normally closed contacts 80.
Perform suction suction and release. The resistor 32 is for preventing chattering of the contacts.

(Operation of Vehicle Direction Indicator) The operation of the blinking device will be described below.

First, the key switch 2 is turned on, and further the turn signal switch 64 is turned on, for example, on the left side. The current coil 24 is energized via the normally closed contact 80, and the current coil 24 is
0 is released. That is, the armature plate 41 of FIG. 2 pushes up the contact spring 23 by the protrusion 99 and separates the movable contact 22 from the fixed contact 21.

While the normally closed contact 80 is opened, the attraction force generated by the voltage coil 25 and the current coil 24 maintains the open state of the normally closed contact 80 while the capacitor 31 is charged.

When the capacitor 31 is charged, the currents of the current coil 24 and the voltage coil 25 decrease, the electromagnetic force of the coils decreases, and the armature plate 41 returns to the diaphragm 3 side by the restoring force of the armature spring 44, and the contact spring 23 itself. The movable contact 22 is brought into contact with the contact 21 by the restoring force (elasticity). Thus, the closing of the normally closed contact 80 causes the capacitor 31 to discharge through the voltage coil 25 and the normally closed contact 80.

The discharge of the capacitor 31 excites the voltage coil 25 in the opposite direction, and the current coil 24 and the voltage coil 25 excite in the opposite directions to leave the normally closed contact 80 in the closed west state.
Therefore, for example, the left direction indicator light 65 is turned on via the normally closed contact 80, the current coil 24, and the turn signal switch 64.

When the discharge current of the capacitor 31 decreases, the exciting force of the current coil 24 becomes stronger and the normally closed contact 80 opens again. Then, the direction indicator light 65 is turned off.

The voltage coil 25 is a high resistance coil with many turns, and the current coil 24 is a low resistance coil with few turns.

As described above, when the electromagnetic force of the magnetic circuit exceeds a predetermined value due to the current flowing through the current coil 24 and the voltage coil 25, the armature plate 41 is attracted to the core 42. At this time, the protrusion 99 provided at the tip of the armature plate 41 pushes down the tip of the contact spring 23, so that the movable contact 22 is separated from the fixed contact 21, the current path is cut off, and the direction indicator lamp 65 is turned off. Further, when the electromagnetic force generated in the magnetic circuit by the current flowing through the current coil 24 and the voltage coil 25 becomes a predetermined value or less, the armature plate 41 returns from the core 42 by the action of the armature spring 44 and is fixed to the diaphragm 3. The hit element 3a of FIG. 1 is hit. The diaphragm 3 vibrates by hitting the armature plate 41 and emits an alarm sound. As described above, the turn signal switch 6
When 4 is operated, an alarm sound (operation sound) is emitted from the diaphragm 3 in synchronism with the blinking of the turn signal lamp on the input side.

As described above, in the device of this embodiment, the movable contact 22 is mechanically separated from the armature plate 41. Therefore, the contact gap between the movable contact 22 and the fixed contact 21 is the spatial position of the armature plate 41, that is, the diaphragm. It can be maintained constant regardless of the positions of the base 13 and the base 13.

That is, due to variations in the coupling state between the lid 12 and the case body 11 and variations in the length of the hit element 3a, the hit element 3 may be affected.
Even if a moves the position of the armature plate 41 within a certain range, the relative positions of the contact spring 23 and the movable contact 22 with respect to the fixed contact 21 do not change.

In addition, the normally closed contact 8 can be easily
It is possible to adjust and inspect important characteristics such as zero contact gap, and since these characteristics do not change even after assembly, a high-quality direction indicator device can be obtained.

Further, since the inner peripheral surface of the opening of the case body 11 and the outer peripheral surface of the base 13 are screwed together, the core 42 of the armature plate 41 (see FIG. 3) can be adjusted by screwing the base 13 into the case body 11. The relative position to, that is, the air gap of the magnetic circuit can be adjusted. Therefore, the operating voltage range can be easily set.

Further, the contact spring 23 is connected to the armature plate 41.
Since it intersects diagonally with respect to the longitudinal direction of the contact spring, it is possible to secure a sufficient length of the contact spring in a small case.

Further, since the yoke 43 is forged as described above and also serves as the external terminal 29, the parts can be omitted as compared with the conventional product.

In the embodiment described above, the flashing device is a method of intermittently exciting the relay coil by charging and discharging the capacitor,
A similar effect can be obtained with a blinking device of a type in which a relay coil is intermittently excited by an oscillation circuit formed of a transistor or an IC. Further, although the hit element is fixed to the diaphragm, the same effect can be obtained by providing the armature plate with the hit element.

(Other Embodiments) If the screw surface is processed on the opening of the case body (11) and the lid part (12), the diaphragm (3) is adjusted by adjusting the screwing of the lid part (12) into the case body (11). Through this, the relative position of the armature plate (41) with respect to the core (42) can be adjusted. Therefore, the armature spring (4) that elastically supports the armature plate (41) is
Since the air gap serving as the magnetic flux path can be adjusted by adjusting the amount of deflection in 4), the operating voltage range can be changed without changing the contact pressure or the contact interval. Further, the contact state between the armature plate (41) and the diaphragm (3) can be changed by adjusting the screw engagement between the case body 11 and the lid portion 12.

Further, contrary to the embodiment described above, the movable contact (2
3) may be installed above the fixed contact (21) and the armature plate (41) may be installed above the contact spring. When the armature plate (41) is sucked downward by the core (42), both contacts (2
It is also possible to use relays with normally open contacts with which 2, 21) abut.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention, and FIG.
1 is a partial cross-sectional plan view of the device shown in FIG. 1, FIG. 3 is a front view showing a main part of a relay of the device shown in FIG. 1, and FIG. 4 is a mounting state of contact springs of the device shown in FIG. Partial plan view,
FIG. 5 is a plan view showing a locked state of the contact spring of FIG. 4 and the first relay terminal, and FIG. 6 is a plan view showing a locked state of the fixed contact of the device of FIG. 1 and the second relay terminal. FIG. 7 is an electric circuit diagram of an automobile direction indicator using the blinking device of the above-described embodiment, and FIG. 8 is a plan view showing a state where the armature plate and the armature spring of the device of FIG. 1 are locked. , FIG. 9 is a sectional view of a conventional blinking device. 1 …… Case 2 …… Relay 3 …… Diaphragm 21 …… Relay fixed contact 22 …… Moving contact 23 …… Contact spring 41 …… Armature plate

Claims (1)

[Claims] 1. A case, a relay disposed in the case for connecting and disconnecting electricity to a lamp, and a relay arranged in a different position in the case for interlocking with the intermittent operation of the relay. In a blinking device for a vehicle including a diaphragm that emits an alarm sound, the relay has a coil that generates an electromagnetic force that fluctuates according to a change in a conduction current, and has a striking portion and oscillates according to a change in the electromagnetic force. An armature plate that strikes the diaphragm by the striking part, fixed contacts and a movable contact that are arranged in a circuit that supplies power from a power source to the lamp and that connects and disconnects electricity to the lamp, and the movable contact is fixed. A contact spring that is urged by swinging of the armature plate to bring the movable contact into contact with and separate from the fixed contact. Flashing device for vehicles.