JPH0992087A - Breaker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give a security of switch operation. SOLUTION: A locking hole 45 is made at a lever 20. Moreover, a return prevention piece 41 is supported rotatably on a case 1, and also a locking claw 41a is made at one end, and a spring 44 is arranged between the other end and a spring pressing piece 43. Rotating the lever 20 into off position will engage the locking hole 45 with the locking claw 41a, which retains the lever 20 in its position. Hereby, the changeover into off-state is secured, because the lever 20 is prevented from returning to its former on-position after switching the lever 20 from on-position to off-position.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a breaker device.

[0002]

2. Description of the Related Art As a general breaker device, a knife switch type is known. As shown in FIG. 8, a pair of electrode plates 2 and 3 are fixed on a substrate 1 at a predetermined distance from each other, and an end of an electric wire 4 is interposed between the electrode plates 2 and 3 via a crimp terminal 5. Screwed. A plate-shaped lever 6 made of a conductive material is rotatably supported on one electrode plate 3 and is opened upward so as to sandwich the lever 6 tilted on the other electrode plate 2 from both sides. An elastic contact piece 7 is provided which is a leg. Then, when the lever 6 is laid down, the lever 6 is press-fitted between the elastic contact pieces 7 of the other electrode plate 2, and the two electrode plates 2 and 3 are electrically connected via the lever 6 to raise the lever 6. And lever 6
Is separated from the elastic contact piece 7, and the two electrode plates 2 and 3 are brought into a non-conductive state.

[0003]

However, in the above structure, the lever is simply press-fitted between the elastic contact pieces in the conductive state, and is upright in the non-conductive state. The lever could be lifted carelessly or fall over. In this case, the state is not maintained after switching the breaker device, and the switch operation in the breaker device is not ensured. The present invention has been made in view of the above circumstances, and an object thereof is to provide a breaker device that can ensure the reliability of a switch operation.

[0004]

To achieve the above object, a breaker device of the present invention has a pair of electrode terminals,
In a breaker device in which a switch operation is performed between the electrode terminals by bringing the two electrode terminals into contact / non-contact, a holding means for holding at least one of a contact state and a non-contact state between the two electrode terminals. Is provided (the invention according to claim 1).

In a breaker device having a pair of electrode terminals, and switching between the electrode terminals by bringing them into contact or non-contact, the breaker device is turned on to perform the switching operation between the electrode terminals. A lever provided so as to be displaceable between the position and the off position, a lock receiving portion provided on the lever, and a lock portion engageable with the lock receiving portion at the lever off position. It is characterized in that it is present (the invention according to claim 2).

[0006]

According to the invention of claim 1, the holding means holds the electrode terminals in at least one of a contact state and a non-contact state. According to the invention of claim 2, when the lever is displaced between the on position and the off position,
The breaker device is switched by bringing the electrode terminals into or out of contact with each other. When the lever is displaced to the off position, the lock receiving portion of the lever engages with the lock portion and the lever is held at the off position. That is, the electrode terminals are held in a non-contact state.

[0007]

As described above, according to the first aspect of the invention, since the holding means is provided, at least one of the conducting state and the non-conducting state is maintained between the electrode terminals. The switching state is reliably maintained without being easily switched. Claim 2
According to the invention, when the lever is displaced to the off position, the electrode terminals are automatically held in a non-contact state accordingly, so that the switch operation to the off state in the breaker device becomes more reliable. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a breaker device according to the present invention will be described below with reference to FIGS.

<Structure> The breaker device of the present invention is arranged between a battery and various electric devices in an electric vehicle,
As shown in FIG. 1, a case 11 having a rectangular parallelepiped shape is provided with a switch mechanism 12, an operation mechanism 13 for turning the switch mechanism 12 on and off, a lock mechanism 14 for holding the breaker device in an on state, Further, it is provided with a release mechanism 15 for releasing this.

The switch mechanism 12 includes a pair of electrode terminals 16 and 17, which are conductive rods, and the electrode terminals 16 and 17.
And a connecting member 18 for electrically connecting the two. The electrode terminals 16 and 17 are arranged on both left and right side surfaces in the case 11 so as to be opposed to each other, and are opposed to each other coaxially with their tips slightly separated. In addition, each electrode terminal 16, 17
The tip side of each of the contact terminals is formed to have a diameter slightly smaller than the root side thereof, and the contact portions 16a and 17a formed to have the smaller diameter have a length equal to that of the contact portion of the electrode terminal 16 arranged on the left side in the drawing. 16
a is arranged on the right side and has a size about twice as large as the contact portion 17a of the electrode terminal 17.

The connecting member 18 has a cylindrical shape, the inner diameter of which is slightly larger than the outer diameter of the contact portions 16a and 17a of the electrode terminals 16 and 17, and is arranged between the electrode terminals 16 and 17. There is. Although not shown, the connecting member 18
Elastic contact pieces bulge on the inner peripheral surfaces of both ends of the contact terminals 16a and 17a of the electrode terminals 16 and 17 so that they can be smoothly inserted from the left and right sides and the elastic contact pieces are interposed therebetween. The electrode terminals 16 and 17 and the connecting member 18 are electrically connected to each other. Further, the connecting member 18 is the contact portion 16a of the electrode terminal 16 arranged on the left side.
The length is substantially the same as the length of, and is slidable in the left-right direction while sliding on the contact portion 16a. As a result, at the position where the connecting member 18 slides to the left and the left end of the connecting member 18 abuts on the base portion 16b of the electrode terminal 16 (non-conducting position), the electrode terminal 1 arranged on the right side.
The contact portion 17a of 7 is removed from the connecting member 18 and the two electrode terminals 16 and 17 are brought into a non-conductive state (state shown in FIG. 4). Further, at a position where the connecting member 18 slides to the right and the right end portion of the connecting member 18 abuts on the base portion 17b of the electrode terminal 17 (conduction position), the electrode terminals 16 and The contact portions 16a, 17a of 17 are fitted together, and the two electrode terminals 16, 17 are brought into conduction through the connecting member 18 (state shown in FIG. 1).

A cylindrical insertion plug 19 projects from the left and right side surfaces of the case 11, and the rear ends of the electrode terminals 16 and 17 are respectively inserted into the insertion plug 19.
Protruding almost in the center. Then, one insertion plug 19 is inserted with one end of a cable connected to a battery, and the other insertion plug 19 is inserted with one end of a cable wired to various electric devices.

The operation mechanism 13 is a mechanism for turning on / off the switch mechanism 12, that is, electrode terminals 16 and 17.
The connection member 1 is for connecting and disconnecting the space.
A lever 20 for manual operation for sliding 8 between the conducting position and the non-conducting position, and a spring actuator 21 for automatically returning the lever 20 from an on position to an off position described later. As shown in FIGS. 2 and 3, the lever 20 is in the shape of a gate having a grip portion 22 on the upper portion, and both leg pieces 23 of the lever 20 form a slit hole 24 formed in the upper surface of the case 11 to form a case. It is supported by a rotating shaft 25 in 11. Thereby, the lever 20
Is rotatable between an off position (position shown in FIG. 4) located at the left end of the slit hole 24 and an on position (position shown in FIG. 1) located at the right end. Also, this lever 20
A longitudinally long engaging hole 23a is formed in each of the two leg pieces 23 so as to face the lower portion thereof, and an engaging protrusion 18a that protrudes so as to face the substantially central portion of the connecting member 18 is engaged with the engaging hole 23a. are doing. Then, when the lever 20 is rotated from the off position to the on position, the connecting member 18 is interlocked therewith to slide from the non-conducting position to the conducting position, and when the lever 20 is rotated from the on position to the off position, the connecting member 18 is conducted. It is designed to slide from the position to the non-conducting position.

Further, a longitudinally extending through hole 23b is formed in the both leg pieces 23 of the lever 20 so as to face the upper portion thereof, and a lock bar 26 is bridged between the through holes 23b. Springs 27 are connected to both ends of the lock bar 26 outside the leg pieces 23, and the lock bar 26 is urged downward.

The spring actuator 21 is fixed to the inner bottom portion of the case 11, and is composed of a spring case 28 having a spring (not shown) accommodated therein, and a pressing bar 29 protruding from the spring case 28. The pressing bar 29 is pushed rightward in FIG. 1 by the elastic force from the spring housed in the spring case 28, and its tip is mounted between the lower ends of the leg pieces 23 of the lever 20. It is connected to the mounting shaft 30.
That is, the lever 20 is always biased to the left in FIG. 1 by the spring actuator 21, and in the natural state, the lever 20 is biased to the off position, and the electrode terminals 16 and 17 are always in the non-conductive state. It is said that

Two limit switches 31 are arranged at predetermined positions on the inner bottom of the case 11, and when the lever 20 is turned to the off position and the on position, the leg pieces 2 are respectively provided.
It is adapted to be pushed by the lower end of 3. The limit switch 31 is wired to a control box (not shown) so that it can detect whether the breaker device is in an on state or an off state.

The lock mechanism 14 is a mechanism for holding the lever 20 in the ON position, that is, for holding the breaker device in the ON state. As shown in FIG. 5, the lock mechanism 14 is locked at the right end of the upper surface of the case 11. The piece 32 is supported by the pair of support leg portions 33. That is, the rotation shaft 32 that extends upward from the upper surface of the case 11 in a state where the support legs 33 face each other in the front-rear direction and penetrates the center of the lock piece 32 between the respective upper ends thereof.
a is fitted. As a result, the lock piece 32 can be rotated about the rotation shaft 32a. A locking claw 32b is formed in the lock piece 32 on the right side in FIG. 5 so that the lock bar 26 engages with the lever 20 when the lever 20 is rotated to the ON position. . further,
The lock piece 32 has a restricting portion 32 at a position symmetrical with the locking claw 32b.
c is formed so that a release operation piece 34, which will be described later, is engaged therewith. Thereby, the lock piece 32
The rotation of the lock bar 26 is restricted, and the lock bar 26 engaged with the locking claw 32b is held at that position. That is, the lever 20 is locked in the ON position. The lock piece 32
A weight 35 is suspended at the lower end of the lock piece 32 so that the locking claw 32b of the lock piece 32 is located on the right side in a natural state.

The release mechanism 15 comprises a release operation piece 34 and a solenoid 36. The release operation piece 34 is engageable with the restriction portion 32c of the lock piece 32 and is arranged so as to be slidable in the left-right direction. The solenoid 36 is fixed to the left end of the upper surface of the case 11, and the solenoid 36 and the release operation piece 34 are connected via a connection bar 37. When the solenoid 36 is operated, the release operation piece 34 is pulled in the direction of arrow A in FIG. 5, and the release operation piece 34 is disengaged from the restriction portion 32c of the lock piece 32. That is, when the solenoid 36 operates, the lock piece 32 is allowed to rotate in the direction of the arrow B in FIG. 5, and the lock bar 26 can be detached from the locking claw 32b. Further, the connecting bar 37 is supported by a support piece 38, and a spring 39 is arranged between the support piece 38 and the release operation piece 34, and the release operation piece 34 is always engaged with the restriction portion 32c. Is urged to In addition,
The solenoid 36 is wired to a sensor (not shown),
It is activated by a release signal from the sensor.

Further, the breaker device of this embodiment has
A return prevention mechanism 40 corresponding to the holding means of the present invention is provided, which is a mechanism for preventing the lever 20 in the off position from returning in the on position direction. That is,
As shown in FIG. 3, a return prevention piece 41 (corresponding to a locking portion of the present invention) is arranged at the left end of the upper surface of the case 11, and the return prevention piece 41 is provided on the upper surface of the case 11. It is rotatably supported around a shaft via a vertically mounted rotating shaft 42. A locking claw 41a is formed on one end of the return prevention piece 41, and a spring 44 is arranged between the other end and the spring pressing piece 43. It is designed to urge in the clockwise direction shown in. Further, the other end portion extends leftward in FIG. 3, and by pushing it inward, the locking claw 41a can be rotated counterclockwise against the biasing force of the spring 44. It is like this. Further, a stopper 46 is provided on the side opposite to the spring pressing piece 43 with the return prevention piece 41 interposed therebetween, and prevents the return prevention piece 41 from being biased clockwise by a spring 44 more than a predetermined amount. ing.

On the other hand, as shown in FIG. 7, the left side portion of the upper portion of the leg piece portion 23 of the lever 20 projects obliquely upward, and there is a locking hole 45 (the locking receiving portion of the present invention. Is formed). When the lever 20 is rotated to the off position, the locking hole 45 engages with the locking claw 41a of the return prevention piece 41 to hold the lever 20 at the off position.

<Operation> Next, the operation of this embodiment will be described. To turn the breaker device from the off state to the on state, the lever 20 in the off position is gripped and rotated rightward in FIG. Then, the connecting member 18 slides to the right from the non-conducting position in conjunction with the lever 20, and when the lever 20 reaches the ON position, the electrode terminals 16 and 17 are inserted into the right open end of the connecting member 18. The electrode terminals 16 and 17 are electrically connected via the connecting member 18 (see FIG. 1).
Further, at this time, the spring actuator 21 is compressed by the leg pieces 23 thereof as the lever 20 rotates, and biases the lever 20 to the left in FIG. 1 at the ON position. Further, the lock bar 26 of the lever 20 is
When the lever 20 rotates, it abuts on the upper edge of the lock piece 32, and then, as the lever 20 rotates, the lever 20 slightly moves upward against the elastic force of the spring 27 and slides on the outer peripheral edge of the lock piece 32. It engages with the locking claw 32b while moving (see FIG. 5). At this time, the release operation piece 34 is urged by the spring 39 so that the restriction portion 32
Since the lock piece 32 is engaged with c, the rotation of the lock piece 32 in the direction of arrow B in FIG. 5 is restricted, and the lock bar 26 engaged with the locking claw 32b is held in that state. That is, the lever 20 is locked in the on position while being biased by the spring actuator 21 toward the off position. If the rotation operation of the lever 20 is stopped halfway, the lever 20 is returned to the off position by the spring actuator 21.

When a break signal is transmitted from the sensor to the solenoid 36 while the breaker device is on, the solenoid 36 slides the cancel operation piece 34 in the direction of arrow A in FIG. Then, the release operation piece 34 is disengaged from the restricting portion 32c of the lock piece 32, so that the lock piece 32 is allowed to rotate in the arrow B direction. As a result, the lock state between the lock bar 26 and the locking claw 32b is released, and the lever automatically pushes the lock piece 32 with the lock bar 26 (see FIG. 6) while the spring actuator 21 automatically moves the lever to the left in FIG. It is pushed back to the off position (see FIG. 4). Then, when the lever 20 is pushed back to the off position, the connecting member 18 slides to the non-conducting position in conjunction with this and the electrode terminals 16 and 17 are brought into the non-conducting state. Further, when the lever 20 is pushed back to the off position, the side edge portion of the lever 20 abuts on the locking claw 41a of the return prevention piece 41, and thereafter, the locking claw 41a resists the urging force of the spring 44 and moves outward. The locking claw 41a is engaged with the locking hole 45 while rotating (see FIG. 7). As a result, the lever 20 is held in the off position, and the electrode terminals 16 and 17 are held in a non-conductive state.

On the other hand, in order to rotate the lever 20 held at the off position to the on position again, the rear end of the return preventing piece 41 (the end opposite to the locking claw 41a) is moved inward with a finger. Push.
Then, since the locking claw 41a rotates outward about the rotation shaft 42, the locking claw 41a disengages from the locking hole 45 and the lever 20 can be rotated to the ON position.

<Effect> As described above, in the present embodiment, the lever 20 is constantly urged to the off position by the spring actuator 21, so that when the breaker device is switched between the on state and the off state, the connecting member is used. 18 does not stop in the incompletely engaged state with the electrode terminals 16 and 17 on the way, and it is possible to prevent an electrically unstable state between the electrode terminals 16 and 17.

Further, the lever 2 is provided by the return prevention mechanism 40.
Since 0 is held in the off position, the lever 20 is prevented from being inadvertently turned to the on position by being turned to the on position after the breaker device is switched to the off state. It can be guaranteed reliably. Moreover, when the lever 20 is turned to the off position, the lever 20 is automatically held at the off position, so that the switch operation to the off state in the breaker device is further ensured.

Further, since the breaker device can be electrically switched from the ON state to the OFF state by the solenoid 36, the breaker device can be automatically switched in association with various sensors. For example, when a vehicle collides, it can be detected by a collision sensor or the like to automatically turn off the breaker device. Furthermore,
Since the lock of the lever 20 can be manually released to turn off the breaker device regardless of the release signal from the sensor, the maintenance work of each electric device can be easily performed.

The present invention is not limited to the above-described embodiments, but can be modified and implemented as follows, for example, and these embodiments also belong to the technical scope of the present invention. (1) In the above embodiment, the return prevention mechanism 40 is configured such that the locking claw 41a of the return prevention piece 41 provided on the case 11 engages with the locking hole 45 formed in the lever 20. The return prevention piece may be provided on the lever side and the locking hole may be formed on the case side. In this case, the locking hole corresponds to the locking portion according to the invention, and the return prevention piece is It corresponds to the lock receiving portion.

(2) In the above embodiment, the spring actuator 2 is used so that the breaker device can be automatically turned off by the release signal from the sensor.
1, the lock mechanism 14 and the release mechanism 15 are provided, but the switching operation of the breaker device may be manually performed without providing them, and in such a manual configuration, the above-mentioned return The present invention also includes a configuration in which the prevention mechanism is provided on the ON position side and a configuration in which it is provided on both sides of the ON position and the OFF position. In addition, the present invention can be variously modified and implemented without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the entire embodiment (on state).

FIG. 2 is a side view of the embodiment.

FIG. 3 is a top view of the same embodiment.

FIG. 4 is a cross-sectional view showing an off state.

FIG. 5 is a cross-sectional view showing a lock mechanism (locked state).

FIG. 6 is a cross-sectional view showing a lock mechanism (released state).

FIG. 7 is a cross-sectional view showing a return prevention mechanism.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 16, 17 ... Electrode terminal 40 ... Return prevention mechanism (holding means) 41 ... Return prevention piece (locking portion) 45 ... Locking hole (locking receiving portion)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichimoto Chikada 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. (72) Inventor Shuichi Kanagawa 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd.

Claims (2)

[Claims] 1. A breaker device having a pair of electrode terminals, wherein both electrode terminals are brought into contact or non-contact with each other to perform a switch operation between the electrode terminals. A breaker device comprising a holding means for holding at least one of the non-contact state. 2. A breaker device having a pair of electrode terminals, and switching operation between the electrode terminals by contacting / non-contacting the electrode terminals. In order to perform the operation, a lever that is displaceable between an on position and an off position, a lock receiving portion that is provided on the lever, and an engagement member that is engageable with the lock receiving portion when the lever is in the off position. A breaker device comprising a stop portion.