JP2003100382A - Lever fitting type power supply circuit breaker - Google Patents

Abstract

(57) Abstract: Provided is a power supply circuit interrupting device that can prevent a power supply circuit from conducting before the operation of a lever is completed, and can prevent occurrence of arc discharge. SOLUTION: Terminals 9 and 35 are provided on both connector housings 1 and 3, respectively, and one connector housing 1 is provided.
The lever 2 is provided so as to be rotatable and linearly movable, the cam groove 21 is provided in the lever 2 and the cam pin 36 is provided in the other connector housing 3, and when the lever 2 is rotated, the terminals 9 of both connector housings 1 and 3 are moved. , 35 are located at a rotation completion position where they come into contact with each other, and when the lever 2 is linearly moved from this rotation completion position, a lever-fitting type power supply circuit interrupter 1A is positioned at a fitting completion position where a fitting detection switch is turned on. The relay circuit which is turned on / off by the fitting detection switch and the power switch by the terminals 9 and 35 of both connector housings 1 and 3 are interposed in series with the power supply circuit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever-fitting type power supply circuit breaker in which one connector housing can be attached to and detached from the other connector housing by operating a lever with a low operating force using a cam mechanism. .

[0002]

2. Description of the Related Art In an electric vehicle, for example, the capacity of the power source, which is a battery, is larger than that of a normal gasoline engine vehicle. Open to ensure work safety. As a conventional power circuit breaker of this type, there is one disclosed in Japanese Patent Application Laid-Open No. 9-265874 shown in FIGS.

As shown in FIGS. 20 to 23, the circuit breaker 100 includes a device body 101 and a device body 101.
And a detachable plug 102 that is detachably provided. The device body 101 has a pair of male terminals 103, 1
03 is provided, and one of the pair of male terminals 103, 103 is electrically connected to the load section, and the other is electrically connected to the power supply section via the fuse 104. The guide groove 1 is provided at both outer positions of the pair of male terminals 103, 103 of the apparatus body 101.
There is a pair of vertical guide walls 106, 106 each having 05.

Further, as shown in FIG. 23, the apparatus main body 10
1 is provided with a reed switch 107a, and conduction / non-conduction of the power supply circuit is detected by turning on / off the reed switch 107a. Furthermore, FIG. 20 and FIG.
As shown in FIG.
8 is provided at a proper position, and the apparatus main body 101 is fixed to a mounting surface (not shown) by a bolt (not shown) inserted in the bolt mounting hole 108.

The removable plug 102 includes a pair of protrusions 109,
Reference numeral 109 denotes an operation lever 110 provided on the left and right side surfaces, a plug body 112 rotatably provided on the operation lever 110 via a support shaft 111, and a plug body 112 fixed to the plug body 112 and electrically connected by a bus bar 113. And a pair of female terminals 114, 114 that are formed. Further, the magnet 107b is provided at the symmetrical position of the operation lever 110.
Are buried respectively.

The operator operates the operating lever 1 of the removable plug 102.
When gripping 10 and inserting the pair of projections 109, 109 into the pair of guide grooves 105, 105 of the apparatus main body 101 as shown by the solid line position in FIG.
The female terminal 114 is inserted by the insertion stroke of the removable plug 102.
21. As shown in FIG. 21, the male terminal 103 is inserted into the pair of male terminals 103, 103, and the male terminal 103 is inserted into the male terminal 103.
4 and the bus bar 113 to be electrically connected, and the power supply circuit becomes conductive. After inserting the removable plug 102 into the apparatus main body 101 as described above, the operation lever 110 is rotated with respect to the plug main body 112 as shown from the virtual line position to the solid line position in FIG. 22, and the operation is performed as shown in FIG. The lever 110 is in a state of being laid sideways on the apparatus main body 101. Immediately before the operation lever 110 is laid down sideways, the magnet 107b closely faces the reed switch 107a and the reed switch 107a is turned on. As a result, it is electrically detected that the power supply circuit is in the conductive state.

Further, in order to bring the circuit into the cut-off state, the operating lever 110 in the sideways-down state is rotated to the upright state, and the attachment / detachment plug 102 attached to the apparatus main body 101 is attached.
Pull upwards. Then, the pair of female terminals 114, 114 are disengaged from the pair of male terminals 103, 103 by the pulling stroke of the removable plug 102, and the pair of male terminals 10
3 and 103 are cut off, and the power supply circuit is cut off.

[0008]

However, in the above-described conventional power circuit breaker 100, when the operation lever 110 is inserted into the main body 101 of the apparatus (state of FIG. 21).
The power supply circuit becomes conductive. That is, the operating lever 11
As shown in FIG. 23, when 0, the operation is completed only after the apparatus main body 101 is laid down sideways, but the power supply circuit becomes conductive during the operation. Then, the reed switch 107a also detects conduction only when the operation of the operation lever 110 is completed. Therefore, since the operation is not completed when the operation lever 110 is inserted into the apparatus main body 101, it may be mistaken that the power supply circuit is still non-conductive. It is preferably in a conductive state.

Further, the removable plug 102 is attached to the apparatus main body 101.
When the power supply circuit is not conducting when the pair of female terminals 114 and 114 are out of contact with the pair of male terminals 103 and 103, the plug-in / out plug 102 is not attached to the load side while a high voltage is applied. When is pulled out, arc discharge may occur.

Therefore, the present invention has been made to solve the above-mentioned problems, and can prevent the power supply circuit from becoming conductive before the operation of the lever is completed, and the arc discharge is prevented. An object of the present invention is to provide a lever-fitting type power supply circuit breaker capable of reliably preventing the occurrence.

[0011]

According to a first aspect of the present invention, both connector housings are brought into contact with each other by approaching / separating movements.
Non-contact terminals are provided respectively, and a lever is provided on the one connector housing so as to be rotatable and linearly movable. A cam groove is provided on one of the lever and the other connector housing, and a lever is provided on the other connector housing. Cam pins that are engaged with the cam grooves are respectively provided, and when the lever is rotationally moved while the cam pins are engaged with the cam grooves, the cam pins are guided by the cam grooves so that the one connector housing is The fitting detection switch is turned on when the lever is linearly moved from the rotation completion position by moving closer to the other connector housing and contacting the terminals of both connector housings. It is located at the completion position,
When the lever is linearly moved in the opposite direction from the mating completion position, the mating detection switch is turned off to the rotation completion position, and the lever is rotated in the opposite direction from the rotation completion position. When moved, the one cam connector is guided by the cam groove to move the one connector housing away from the other connector housing so that the terminals of both connector housings are not in contact with each other, and the fitting detection switch is provided. The circuit which is turned on / off by the above and the power switch by each terminal of the both connector housings are connected in series in the power supply circuit.

In this lever fitting type power circuit breaker,
In the process of rotating the lever from the rotation start position to the rotation completion position, the terminals of both connector housings come into contact with each other and the power switch is turned on, but the power supply circuit is still non-conductive and the lever is rotated to the rotation completion position. The mating detection switch is turned on during the linear movement from
As a result, the circuit is turned on and the power supply circuit becomes conductive for the first time. Further, when the power supply circuit is changed from the conductive state to the non-conductive state, the fitting detection switch is turned off in the process of linearly moving the lever from the fitting completion position to the rotation completion position.
As a result, the circuit is turned off and the power supply circuit becomes non-conducting.In the process of rotating and moving the lever from the rotation completion position to the rotation start position, the power switch between both terminals becomes separated and the power supply circuit is turned off. There is a time lag until the power switch between them is separated, and the discharge time is secured.

According to a second aspect of the present invention, there is provided the lever fitting type power circuit interruption device according to the first aspect, wherein the lever is in the fitting completion position and can be linearly moved with only one finger. It is characterized by

In this lever fitting type power circuit breaker,
In addition to the operation of the invention of claim 1, when the power supply circuit is changed from the conductive state to the non-conductive state, the operation of linearly moving the lever from the fitting completion position to the rotation completion position requires only one finger to operate the lever. However, in the subsequent rotation operation, there is a large time lag between turning off the power supply circuit and separating the power switch between the terminals by operating the lever to change the fingers, etc., and secure sufficient discharge time. It

According to a third aspect of the present invention, in the lever fitting type power circuit breaker according to the first aspect, the cam groove is provided in the lever, and the cam pin is provided in the other connector housing. Characterize.

In this lever fitting type power circuit breaker,
The same effect as the invention of claim 1 can be obtained.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

1 to 19 show a lever fitting type power circuit breaker according to an embodiment of the present invention. FIG. 1 (a) is an exploded front view of one connector housing, and FIG. 1 (b) is one connector. 3 is an exploded side view of the housing, FIG. 2 is a perspective view of the lever, FIG. 3A is a side view of the lever, and FIG.
FIG. 4A is a cross-sectional view taken along the line AA in FIG. 4, FIG. 4 is a front view showing a state where the lever is mounted at one of the connector housings at a rotation start position, and FIG. FIG. 6B is a rear view showing a state in which the lever is located at the rotation start position, and FIG. 6A is a plan view in which a part of one connector housing in which the lever is mounted is cut away; Is a bottom view of one connector housing with a lever attached, FIG. 7 is a front view in which a part of the other connector housing is cut away, FIG. 8 (a) is a plan view of the other connector housing, and FIG. 8 (b) is Figure 8
It is sectional drawing which follows the BB line of (a).

As shown in FIGS. 10 to 12 and FIGS. 15 to 19, a lever-fitting type power supply circuit breaker 1A for a high-voltage / large-current circuit includes one connector housing 1 made of synthetic resin and one of these. 1 is provided with a synthetic resin lever 2 attached to the connector housing 1 and the other synthetic resin connector housing 3 to which one connector housing 1 is mounted by operating the lever 2.

As shown in FIGS. 1 and 4 to 6, one connector housing 1 has a housing body 4 and a cover 5 mounted so as to close the upper part of the housing body 4, and the housing body 4 The cover 5 is attached to the housing body 4 by inserting the locking holes 7 of the cover 5 into the pair of protrusions (projections) 6 and 6 of the triangular pyramid. The projections 6 of the triangular pyramid are provided such that the lower side is a vertical surface with respect to the surface of the housing body 4, and the upper and side surfaces are both inclined surfaces that gradually rise from the surface of the housing body 4. By the cover 5 is shown in FIG.
It can be mounted from above the housing body 4 as shown by the solid line in (a) and from the side of the housing body 4 as shown by the phantom line in FIG. 1 (a).
Therefore, when the lever fitting type power circuit breaker 1A is installed in a narrow space, the cover 5 can be easily attached and detached.

A terminal hood portion 8 is provided below the housing body 4, and the terminal hood portion 8 is provided in FIGS.
A pair of male terminals (terminals) 9 shown in (b) are provided in a state of protruding downward. This pair of male terminals 9, 9
6 (a) and FIG. 1 housed in the housing body 4
It is electrically connected via a fuse 10 shown in FIG.

A pair of guide pins 11, 11 are provided on the outer wall of the housing body 4 so as to project therefrom.
Reference numeral 1 has a substantially elliptical shape with the upper and lower ends of a cylindrical shape cut. That is, a long dimension width portion and a short dimension width portion are formed. Then, the pair of guide pins 11, 11
Are engaged with guide grooves 20 of the lever 2 which will be described later.

A pair of substantially hemispherical locking projections (projections) 12, 12 are provided on the outer wall of the housing body 4 so as to project from the housing wall. Flexible arm portion 1 formed between the slits 13, 13.
4 is provided. The pair of locking projections 12 and 12 hold the lever 2 at a predetermined position by inserting a first locking hole 22 and a second locking hole 23 of the lever 2 which will be described later. The elastically deforming deformation of 14 makes it easy to move inward of the housing body 4. Further, a pair of lever trajectory correcting guide grooves 15, 15 are provided on the outer wall of the housing body 4, and one step side surface 15a forming each lever trajectory correcting guide groove 15 has a vertical direction extending vertically. It is formed of a step side surface, a horizontal step side surface extending in the horizontal direction, and an arc step side surface connecting these side surfaces in an arc shape. And
A pair of lever locus straightening guide pins 24, 24 of the other connector housing 3 are engaged with the pair of lever locus straightening guide grooves 15, 15 to form a pair of lever locus straightening guide pins 24, 24. It is adapted to slide along the step side surface 15a of the lever trajectory correcting guide groove 15.

A pair of lever rotation stopper portions 16 and 16 are provided on the housing body 4 so as to project therefrom. The pair of lever rotation stopper portions 16 and 16 are the rotation start position of FIG. 10 in which the lever 2 is in an upright state on one connector housing 1 and the rotation of FIG. 11 in which the lever 2 is parallel to one connector housing 1. The rotation of the lever 2 is restricted so that the lever 2 can rotate only to the completion position.

As shown in FIGS. 2 to 6, the lever 2 includes a pair of arm plate portions 1 arranged in parallel with a space therebetween.
8a, 18b and the pair of arm plate portions 18a,
The operation part 19 which connects 18b is provided. Horizontally extending guide grooves 20 are provided in the pair of arm plate portions 18a, 18b at symmetrical positions, and the pair of guide pins 11, 11 of one connector housing 1 are inserted into the respective guide grooves 20. There is. Each guide groove 2
0 is composed of an arcuate arc portion 20a on one end side and a straight straight portion 20b communicating with the arcuate arc portion 20a. The diameter of the circular arc portion 20a is slightly larger than the diameter of the circular arc portion (long dimension width portion) of the guide pin 11, and the width of the straight portion 20b is the width of the cut portion (short dimension width portion) of the guide pin 11. They are provided slightly larger than each. In the lever 2, the guide pin 11 can be arranged only in the circular arc portion 20a of the guide groove 20 at a rotation position other than the rotation completion position shown in FIG. 11, and the rotation start position of FIG. 10 and the rotation completion position of FIG. Between the circular arc portion 20a of the guide groove 20 and the straight portion 20b at the rotation completion position (fitting completion position shown in FIG. 12) of the guide groove 20. It is possible, and the rotation completion position of FIG. 11 and FIG.
The linear movement by the sliding between the mating completion position and the fitting completion position is allowed. As described above, the lever 2 is provided so as to be rotatable and linearly movable with respect to the one connector housing 1.

Also, a pair of arm plate portions 18a, 1
8b is provided with cam grooves 21 at symmetrical positions, and when the one connector housing 1 is mounted on the other connector housing 3, a cam pin 36 of the other connector housing 3 which will be described later is inserted. To do. One end side of each cam groove 21 is an arm plate portion 18a, 1a.
8b has an opening 21a that opens to the end face, and the arcuate portion 2 of the guide groove 20 extends from this opening 21a toward the back.
It is composed of a bent portion 21b that gradually changes the distance r from 0a in a direction in which the distance r approaches 0a, and a straight portion 21c arranged parallel to the straight portion 20b of the guide groove 20.

Further, as shown in FIG. 10, when the lever 2 is in the upright state, the side wall surface above the opening 21a does not use the lever 2 and one connector housing 1 is connected to the other connector housing 3. The cam groove 21 with which the cam pin 36 abuts when the connector is inserted and brought to the temporary connector fitting position.
Is formed as the side wall stopper surface 17. That is,
Further insertion of the cam pin 36 is blocked, and thereafter, the cam pin 36 is inserted only by operating the lever 2.

Also, a pair of arm plate portions 18a, 1
8b is provided with a first locking hole (recess) 22 and a second locking hole (recess) 23 at symmetrical positions, and one connector is provided in the first locking hole 22 and the second locking hole 23. The locking projection 12 of the housing 1 is inserted. At the rotation start position where the lever 2 is in the upright state on the one connector housing 1, the lever 2 is held at the rotation start position by inserting the locking projection 12 into the first locking hole 22.
Further, at the fitting completion position where the lever 2 is parallel to the one connector housing 1, the lever 2 is held at the fitting completion position by inserting the locking projection 12 into the second locking hole 23. Since the rotation completion position of the lever 2 is in the middle of the operation, the locking projection 12 is not locked.

Further, a pair of arm plate portions 18a,
Lever locus correction guide pins 24, 2 are provided on the inner wall of 18b.
4 are provided respectively, and the pair of lever locus correction guide pins 24, 24 are engaged with the pair of lever locus correction guide grooves 15, 15 of the one connector housing 1. In addition, the pair of arm plate portions 18a, 1
One side 8b is wider than the other, and the wide arm plate portion 18b is provided with the connector portion 25 shown in FIGS. 3 (a) and 5 and the connector portion 25 has a fitting detection terminal. Is provided as a male terminal 26 for detecting fitting. Further, the operation portion 19 is provided with a finger insertion hole 27, and the size of the finger insertion hole 27 is set so that only one human finger can be finally inserted.

As shown in FIGS. 7 and 8, the other connector housing 3 has a substantially rectangular parallelepiped shape with an open upper surface, and the inner space thereof is a mounting space 30 for one connector housing 1. This installation space 30
18 and 19 is formed with a bolt insertion hole 32 shown in FIGS. 18 and 19, and the other connector housing 3 is fixed to a desired mounting surface (not shown) by a bolt 33 inserted into the bolt insertion hole 32. It is supposed to be done.

Further, a terminal hood accommodating portion 34 is integrally provided on the bottom surface portion 31 which is the lower surface of the mounting space 30 in a state of protruding in the vertical direction. A pair of female terminals (terminals) 35, 35 shown in FIG. When one connector housing 1 is moved close to the other connector housing 3 from above to below, the pair of male terminals 9, 9 of the one connector housing 1 enter the terminal hood accommodating portion 34 and the pair of female terminals 35. , 35, and
When the terminals 9 and 35 are in contact with each other and one connector housing 1 is moved upward from the bottom, the pair of male terminals 9 and 9 are withdrawn from the terminal hood accommodating portion 34 and the pair of female terminals 9 and 9 are retracted. It is not in contact with the terminals 35, 35. One end of a lead wire 39a is connected to each female terminal 35, one of the lead wires 39a is led to the load section 40 side of the power supply circuit D, and the other is led to the power supply section 41 side of the power supply circuit D. That is, as shown in FIG. 9, the power switch SW1 of the power supply circuit D is configured by the male terminal 9 and the female terminal 35 of both connector housings 1 and 3.

Further, a pair of cam pins 36, 36 is provided at a symmetrical position on the inner peripheral wall of the other connector housing 3, and the pair of cam pins 36, 36 are mounted when the one connector housing 1 is mounted. To the cam groove 2 of lever 2
It is designed to be inserted into 1. Further, a connector portion 37 is provided in the mounting space 30 of the other connector housing 3, and a pair of female terminals for fitting detection 38, 38 as fitting detecting terminals are arranged in this connector portion 37. ing. This pair of female terminals 38, 3 for detecting fitting
8 and a pair of male terminals 26, 26 for fitting detection of the lever 2 constitute a fitting detection switch SW2. The fitting detection switch SW2 is a pair of fitting detection female terminals 3
8, 38, a pair of female terminals 26, 2 for detecting the fitting of the lever 2
6 is contacted to turn on, and the pair of fitting detection female terminals 26, 26 of the lever 2 are turned off in a non-contact state. Lead wires 39b are provided on the pair of female terminals 38, 38.
Are connected to each other, and both lead wires 39b
Is guided to a relay circuit (circuit) 42 in the power supply circuit D.

Next, the power supply circuit D will be described. As shown in FIG. 9, the power supply circuit D includes a load unit 40 and the load unit 40.
And a load unit 40 for supplying power to the load unit 40.
In the power supply section 41, the power switch SW1 and the relay circuit 4 by the terminals 9 and 35 of both connector housings 1 and 3 are provided.
2 and are connected in series. The relay circuit 42 is an electric circuit that is turned on when the fitting detection switch SW2 is turned on and turned off when the fitting detection switch SW2 is turned off. The power switch SW1 constituted by the terminals 9 and 35 of both connector housings 1 and 3 is a mechanical switch as described above.

Next, the lever fitting type power circuit breaker 1A
The operation will be described with reference to FIGS. 10 is a perspective view showing a state before the one connector housing 1 is attached to the other connector housing 3, and FIG. 11 is a process of attaching the one connector housing 1 to the other connector housing 3, in which the lever 2 rotates. FIG. 12 is a perspective view showing a state in which the connector housing 1 is in the completion position, FIG. 12 is a perspective view showing a state in which one connector housing 1 is completely attached to the other connector housing 3, and FIG. 13 (a) is one connector housing 1 in the other connector housing. Cam pin 36 when mounted on 3
Is a front view showing a state in which the lever 2 is between a rotation start position and a rotation completion position,
FIG. 13B is a view for explaining the movement process of the cam pin 36 when the one connector housing 1 is attached to the other connector housing 3, and is a front view showing a state in which the lever 2 is at the rotation completion position. 13 (c) is a front view showing a state in which the lever 2 is at the mating completion position when explaining the movement process of the cam pin 36 when the one connector housing 1 is attached to the other connector housing 3.
FIG. 14A illustrates a movement process of the lever locus correction guide pin 24 when the one connector housing 1 is mounted on the other connector housing 3, and the lever 2 is rotated at a rotation start position and a rotation completion position. 14 (b) is a front view showing a state in which the lever locus correction guide pin 24 is moved when the one connector housing 1 is attached to the other connector housing 3. FIG. 14C is a front view showing a state in which the lever 2 is in the rotation completion position, and FIG. 14C illustrates a movement process of the lever locus correction guide pin 24 when the one connector housing 1 is attached to the other connector housing 3. The thing
FIG. 1 is a front view showing a state in which the lever 2 is at the fitting completion position.
5A is a plan view showing a state in which one connector housing 1 is completely attached to the other connector housing 3, FIG.
5B is a front view showing a state in which one connector housing 1 is completely attached to the other connector housing 3, FIG.
6 is a cross-sectional view showing a state in which one connector housing 1 is completely attached to the other connector housing 3, FIG. 17 is an enlarged view of a main part of FIG. 16, and FIG. 18 is taken along line CC of FIG. 15 (a). FIG.

First, the lever fitting type power circuit breaker 1A
The operation of making the power supply circuit D conductive will be described below. As shown in FIG. 10, with one lever 2 as the rotation start position and one connector housing 1 as the other connector housing 3
When it is inserted into the mounting space 30 from above, the terminal hood portion 8 of one connector housing 1 is inserted into the terminal hood housing portion 34 of the other connector housing 3 while being fitted, and the pair of cam grooves of the lever 2 is inserted. A pair of cam pins 36, 36 of the other connector housing 3
Is inserted. Then, the pair of cam pins 36, 36 enter the respective openings 21a of the pair of cam grooves 21, 21 and the pair of cam pins 36, 36 abut on the side wall stopper surfaces 17 of the pair of cam grooves 21, 21. Set to the matching position. At this connector temporary fitting position, the terminals 9 and 35 of both connector housings 1 and 3 are not yet in contact with each other.

Next, when the lever 2 is rotated in the direction of arrow A1 in FIG. 10, the lever 2 moves to the pair of guide pins 11 and 11.
11 from the rotation start position of FIG.
Is rotated to the rotation completion position. As shown in FIG. 13A, the inside of the pair of cam grooves 21 and 21 of the lever 2 is set in the pair of cam pins 36 and 36 of the other connector housing 3.
Is moved, one connector housing 1 is gradually moved closer to the other connector housing 3 and enters. By this proximity movement, the terminals 9 and 35 of the connector housings 1 and 3 are brought into contact with each other by the time the lever 2 is located at the rotation completion position, and at the rotation completion position of the lever 2, both connector housings 1 and 3. , 3 are the connector fitting positions.

Next, when the lever 2 is slid in the direction of arrow B1 in FIG. 11, the pair of guide grooves 20, 2 of the lever 2 are slid.
While the pair of guide pins 11 and 11 slide in 0, as shown in FIGS. 13B and 13C, the pair of cam pins 36 and 36 of the other connector housing 3 causes the lever 2 to move.
By sliding in the pair of cam grooves 21, 21, the lever 2 slides (linearly moves) from the rotation completion position in FIG. 11 to the fitting completion position in FIG. By this sliding movement, the fitting detection male terminal 26 of the lever 2 comes into contact with the pair of fitting detection female terminals 38, 38 of the other connector housing 3 until the lever 2 is located at the fitting completion position. Then, when the fitting detection switch SW2 is turned on, the relay circuit 42 is turned on, and the power supply circuit D is brought into a conductive state for the first time.

Next, the lever fitting type power circuit breaker 1A
The operation of setting the power supply circuit D in the conductive state to the non-conductive state (power supply cutoff) will be described. In the state of FIG. 12, the lever 2 is slid in the arrow B2 direction of FIG. Then, the pair of guide pins 11 and 11 slide in the pair of guide grooves 20 and 20 of the lever 2, and the pair of cam pins 36 and 36 of the other connector housing 3 inside the pair of cam grooves 21 and 21 of the lever 2. By sliding, the lever 2 slides from the fitting completion position of FIG. 12 to the rotation completion position of FIG. By this sliding movement, the fitting detection male terminal 26 of the lever 2 is separated from the pair of fitting detection female terminals 38, 38 of the other connector housing 3 and is in a non-contact state until the lever 2 is located at the rotation completion position. It is said that Then, the fitting detection switch SW2
Is turned off, the relay circuit 42 is turned off, and the power supply circuit D is already turned off at this point.

Next, the lever 2 is rotated in the direction of arrow A2 in FIG. Then, the lever 2 becomes a pair of guide pins 1
It rotates about 1, 1 as a center and is rotated from the rotation completion position of FIG. 11 to the rotation start position of FIG. Further, by moving the pair of cam pins 36, 36 of the other connector housing 3 in the pair of cam grooves 21, 21 of the lever 2, one connector housing 1 is gradually moved above the other connector housing 3. Be pulled out.
By this separation movement, the terminals 9 and 35 of both connector housings 1 and 3 are brought into a non-contact state by the time the lever 2 is located at the rotation start position, and at the rotation start position of the lever 2 both connector housings are brought into contact. 1 and 3 are the temporary connector fitting positions.

When it is desired to separate one connector housing 1 from the other connector housing 3 completely,
One connector housing 1 may be taken out from above the other connector housing 3.

As described above, in the lever fitting type power circuit breaker 1A, in the process of rotating the lever 2 from the rotation start position to the rotation completion position, both connector housings 1,
Between the terminals 9 and 35 of 3 becomes a contact state, and the power switch S
Although W1 is turned on, the power supply circuit D is still non-conductive,
The fitting detection switch SW2 is turned on in the process of sliding (linearly moving) the lever 2 from the rotation completion position to the fitting completion position, whereby the relay circuit 42 is turned on and the power supply circuit D is brought into a conducting state for the first time. It is possible to reliably prevent the power supply circuit D from becoming conductive during the operation of the lever 2. Therefore, since the operation of the lever 2 is not completed, the recognition that the power supply circuit D is still non-conducted is justified, and the occurrence of an accident can be prevented.

Further, when the power supply circuit D is changed from the conductive state to the non-conductive state, the fitting detection switch SW2 is moved in the process of linearly moving the lever 2 from the fitting completion position to the rotation completion position.
Is turned off, whereby the relay circuit 42 is turned off, the power supply circuit D becomes non-conducting, and the power switch SW1 between the terminals 9 and 35 in the process of rotating the lever 2 from the rotation completion position to the rotation start position. It becomes a separated state,
Since there is a time lag after the power circuit D is turned off until the power switch SW1 between the terminals 9 and 35 is separated, and the discharge time is secured, it is possible to prevent the occurrence of arc discharge.

In summary, the operation of the lever 2 for bringing the power supply circuit D into conduction consists of two actions, a rotation operation and a slide operation, and the power supply circuit D is brought into conduction by the subsequent slide operation, and the power supply circuit D is not brought into conduction. The operation of the lever 2 to be made up of consists of the opposite two actions. The power supply circuit D is turned off by the previous slide operation, and the terminal 9,
The power switch SW1 between the switches 35 is turned off with a delay, and the discharge time can be secured.

Further, in the above-described embodiment, since the lever 2 is at the fitting completion position and can be slid and moved with only one finger through the finger insertion hole 27, the lever 2 is moved from the fitting completion position. For the operation of sliding to the rotation completion position, there is no choice but to operate the lever 2 with one finger, and in the subsequent rotation operation, it is necessary to carry out the operation such as holding the finger for operating the lever 2 or the like. Therefore, a large time lag occurs after the power supply circuit D is turned off until the power switch SW1 between the terminals 9 and 35 is separated, and a sufficient discharge time is secured, so that arc discharge is reliably prevented. be able to.

Further, FIG. 19A shows that when one connector housing 1 is mounted, the bolt rotary tool 43 is moved to the bolt 3
19 is a cross-sectional view for explaining that it cannot be attached to FIG.
(B) is a cross-sectional view showing a state in which one of the connector housings 1 is removed and the bolt rotating tool 43 is attached to the bolt 33. In the above embodiment, FIG.
As shown in (a), when one connector housing 1 is attached to the other connector housing 3, the bolt rotating tool 43 cannot be attached to the bolt 33, and the other connector housing 3 cannot be removed. And FIG.
As shown in FIG. 9B, only when the one connector housing 1 is removed from the other connector housing 3, the bolt rotating tool 43 can be attached to the bolt 33 to remove the other connector housing 3 from the mounting surface. Therefore, the other connector housing 3 can be removed from the mounting surface only when the power supply circuit D is surely brought into the non-conductive state, and the safety for the operator can be secured.

Further, in the above-described embodiment, the lever 2 is provided with the lever trajectory correcting guide pin 24, and the one connector housing 3 is provided with the lever trajectory correcting guide groove 15 with which the lever trajectory correcting guide pin 24 is engaged. Therefore, as shown in FIGS. 14A to 14C, the rotational movement and the linear movement of the lever 2 are performed by the guide pin 11 and the guide groove 20.
Not only is it regulated by the lever locus correction guide pin 24 and the lever locus correction guide groove 15,
The rotation of the lever 2 is not started at a position other than the predetermined rotation position. Therefore, damage to the lever 2 and the guide pin 11 can be prevented. Further, even if the rotational force acts to rotate the lever 2 at a position other than the predetermined rotational position, the rotational force is also received by the lever locus correction guide pin 24 and the lever locus correction guide groove 15, and from that point. Also, damage to the lever 2 and the guide pin 11 can be prevented.

Further, in the above embodiment, the lever locus correcting guide pin 11 is provided in the lever 2 and the lever locus correcting guide groove 15 is provided in one of the connector housings 1, respectively. The guide pin 11 may be provided in one of the connector housings 1, and the lever locus correcting guide groove 15 may be provided in the lever 2. This improves the degree of freedom in design.

Further, in the above embodiment, as shown in FIGS. 10 and 12, the locking projection 12 of the one connector housing 1 is inserted into the first locking hole 22 of the lever 2 at the rotation start position. Is held in place, and at the fitting completion position, the locking projection 12 of the one connector housing 1 is inserted and held in the second locking hole 23 of the lever 2, so that not only the fitting completion position It is held even at the rotation start position. Therefore, when the one connector housing 1 is fitted into the other connector housing 3, the lever 2 is held at the desired rotation position, and the opening 2 of the cam groove 21 of the lever 2 is held.
1a and the cam pin 36 of the other connector housing 3 are surely aligned with each other, and workability is good.

Further, in the above-mentioned embodiment, the first of the lever 2 is used.
Locking protrusion 1 locked in the locking hole 22 and the second locking hole 23
Since the same two are used, the locking protrusions 12 may be provided at one location, which contributes to simplification of the configuration.

Further, in the above embodiment, the locking projection 12
Is provided on the flexible arm portion 14 that is elastically deformable in the direction of withdrawing from the first locking hole 22 or the second locking hole 23, and therefore moves to the lever 2 located at the rotation start position or the fitting completion position. When a force is applied, the flexible arm portion 14 is elastically deformed and deformed, so that the locking protrusion 12 causes the first locking hole 22 and the second locking hole 23.
Since the lever 2 is further separated, the operation of the lever 2 is smooth.
In addition, the locking projections 12 have the first locking hole 22 and the second locking hole 23.
The locking projection 12 is less damaged when it is engaged with or disengaged from, and is effective in preventing damage to the locking projection 12.

In the above embodiment, the first locking hole 22 is also used.
The second locking hole 23 and the second locking hole 23 are provided on the lever 2, and the locking projection 12 is provided on the one connector housing 1. On the contrary, the first locking hole 22 and the second locking hole 23 are provided on one side. On the connector housing 1, attach the locking projection 12 to the lever 2.
Alternatively, each may be provided. This improves the degree of freedom in design.

Further, in the above-described embodiment, the cam groove 21 is provided in the lever 2 and the cam pin 36 is provided in the other connector housing 3, respectively. On the contrary, the cam groove 21 is provided in the other connector housing 3 and the cam pin 36. May be provided on each lever 2. This improves the degree of freedom in design.

In the above embodiment, as shown in FIG.
As shown in (b) and 16, when the one connector housing 1 is mounted on the other connector housing 3, the lever 2 is arranged inside the outer peripheral wall of the other connector housing 3, so that the lever 2 It is possible to prevent as much as possible from a problem that another component in proximity to the contact with or the operator accidentally slides the lever 2.

[0054]

As described above, according to the first aspect of the present invention, both connector housings are provided with the terminals which are brought into contact or non-contact with each other by the approaching / separating movement, and the one connector housing is rotationally moved. In addition, a lever is provided so that it can move linearly, a cam groove is provided on the lever, and a cam pin is provided on the other connector housing. When the lever is moved linearly from the completion position, the fitting detection switch is turned on.It is a lever fitting type power circuit breaker which is located at the fitting completion position, and the circuit which is turned on and off by the fitting detection switch Since the power switch with each terminal of the connector housing is connected in series to the power supply circuit, the lever is completely rotated from the rotation start position. In the process of rotating and moving to the position, the terminals of both connector housings come into contact with each other and the switch is turned on, but the power supply circuit is still non-conductive, and the process of linearly moving the lever from the rotation completion position to the fitting completion position The mating detection switch is turned on at this time, the circuit is turned on and the power supply circuit is turned on for the first time, and when the power supply circuit is changed from the conduction state to the non-conduction state, the lever is moved from the fitting completion position to the rotation completion position. In the process of linear movement, the mating detection switch is turned off, which turns off the circuit and brings the power supply circuit into the non-conduction state.In the process of rotationally moving the lever from the rotation complete position to the rotation start position, the switch between both terminals is switched. Is in a separated state, and there is a time lag between the power circuit being turned off and the power switch between the terminals being separated, and the discharge time can be sufficiently confirmed. It can be. Therefore, it is possible to prevent the power supply circuit from becoming conductive before the lever operation is completed, and it is possible to prevent the occurrence of arc discharge.

According to the second aspect of the present invention, since the lever is in the fitting completion position and can be moved linearly with only one finger, when the power supply circuit is changed from the conductive state to the non-conductive state. In the operation of linearly moving the lever from the mating completion position to the rotation completion position, there is no choice but to operate the lever with only one finger, and in the subsequent rotation operation, the finger to operate the lever is changed, and so on. Since a large time lag occurs after the power is turned off until the power switch between the terminals is separated and a sufficient discharge time can be secured, it is possible to reliably prevent the occurrence of arc discharge.

According to the invention of claim 3, since the cam groove is provided in the lever and the cam pin is provided in the other connector housing, the same effect as that of the invention of claim 1 can be obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (a) is an exploded front view of one connector housing, and (b) is an exploded side view of one connector housing.

FIG. 2 is a perspective view of a lever according to the embodiment of the present invention.

3A and 3B show an embodiment of the present invention, FIG. 3A is a side view of a lever, and FIG. 3B is a sectional view taken along the line AA of FIG.

FIG. 4 is a front view showing the one connector housing to which the lever is attached and showing a state in which the lever is located at the rotation start position according to the embodiment of the present invention.

FIG. 5 is a rear view showing the one connector housing to which the lever is attached and showing a state in which the lever is located at the rotation start position according to the embodiment of the present invention.

FIG. 6 shows an embodiment of the present invention, (a) is a partially cutaway plan view of one connector housing with a lever attached,
(B) is a bottom view of the one connector housing in which the lever is mounted.

FIG. 7 is a partially cutaway front view of the other connector housing according to the embodiment of the present invention.

8 shows an embodiment of the present invention, (a) is a plan view of the other connector housing, (b) is a B- of FIG. 8 (a).
It is sectional drawing which follows the B line.

FIG. 9 is a circuit diagram of a power supply circuit according to the embodiment of the present invention.

FIG. 10 is a perspective view showing an embodiment of the present invention and showing a state before mounting one connector housing on the other connector housing.

FIG. 11 is a perspective view showing an embodiment of the present invention, showing a state in which the lever is at the rotation completion position in the process of mounting one connector housing on the other connector housing.

FIG. 12 is a perspective view showing an embodiment of the present invention and showing a state in which one connector housing is completely attached to the other connector housing.

FIG. 13 shows an embodiment of the present invention, in which (a) illustrates a movement process of a cam pin when one connector housing is attached to the other connector housing,
The front view showing the state where the lever is between the rotation start position and the rotation completion position, (b) is for explaining the movement process of the cam pin when mounting one connector housing to the other connector housing, The front view showing the state where the lever is in the rotation completion position, (c) is for explaining the movement process of the cam pin when mounting one connector housing in the other connector housing, and the lever is in the mating completion position. It is a front view showing a certain state.

FIG. 14 shows an embodiment of the present invention, (a) illustrates a movement process of a lever locus correction guide pin when one connector housing is attached to the other connector housing. The front view showing the state between the rotation start position and the rotation completion position, (b) is for explaining the movement process of the lever locus correction guide pin when mounting one connector housing to the other connector housing. FIG. 3C is a front view showing a state in which the lever is at the rotation completion position, and FIG. 3C is a view for explaining a moving process of the lever locus correction guide pin when the one connector housing is attached to the other connector housing. FIG. 6 is a front view showing a state in which the lever is at the fitting completion position.

15A and 15B show an embodiment of the present invention, FIG. 15A is a plan view showing a state in which one connector housing is completely attached to the other connector housing, and FIG. 15B is one connector housing with the other connector housing. FIG. 3 is a front view showing a state in which the mounting is completed on the.

FIG. 16 is a cross-sectional view showing an embodiment of the present invention and showing a state in which one connector housing is completely attached to the other connector housing.

FIG. 17 shows an embodiment of the present invention and is an enlarged view of a main part of FIG. 16.

FIG. 18 is a sectional view taken along the line CC of FIG. 15A, showing the embodiment of the present invention.

FIG. 19 shows an embodiment of the present invention, (a) is a cross-sectional view for explaining that the bolt rotating tool cannot be mounted on the bolt when one connector housing is mounted on the other connector housing, (b). FIG. 6 is a cross-sectional view showing a state where one connector housing is removed from the other connector housing and a bolt rotating tool is attached to the bolt.

FIG. 20 is a perspective view showing a conventional example and before the power circuit breaker is mounted.

FIG. 21 is a cross-sectional view showing a conventional example and showing a state in which a removable plug is inserted in the apparatus main body.

FIG. 22 is a side view showing a conventional example and showing a process of attaching a detachable plug to the apparatus main body.

FIG. 23 is a plan view showing a conventional example and showing a state in which the attachment / detachment plug is completely attached to the apparatus main body.

[Explanation of symbols]

1A lever fitting type power circuit breaker 1 One connector housing 2 levers 3 Other connector housing 9 Male terminal (terminal) 21 Cam groove 35 Female terminal (terminal) 36 cam pins 42 Relay circuit (circuit) D power circuit SW1 power switch SW2 Fitting detection switch

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Satoru Oshita             206-1 Nunobikihara, Haibara-cho, Haibara-gun, Shizuoka Prefecture Yazaki             Parts Co., Ltd. (72) Inventor Minoru Masuda             206-1 Nunobikihara, Haibara-cho, Haibara-gun, Shizuoka Prefecture Yazaki             Parts Co., Ltd. (72) Inventor Hidehiko Kuboshima             206-1 Nunobikihara, Haibara-cho, Haibara-gun, Shizuoka Prefecture Yazaki             Parts Co., Ltd. (72) Inventor Yasuyoshi Fukao             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F term (reference) 5E021 FB20 FC19 FC40 HB02 HB04                       HB05 HB07 HB11 KA09

Claims (3)

[Claims] 1. A terminal that is brought into contact or non-contact with both of the connector housings by proximity and separation movements is provided respectively, and the one connector housing is rotated and moved.
A lever is provided so as to be linearly movable, and a cam groove is provided in one of the lever and the other connector housing, and a cam pin engaged with the cam groove is provided in the other connector housing, and the cam pin engages with the cam groove. When the lever is rotationally moved in this state, the one cam of the cam pin is guided by the cam groove so that the one connector housing moves closer to the other connector housing to bring the terminals of both connector housings into contact with each other. When the lever is linearly moved from the rotation completion position, the lever is moved to the fitting completion position where the fitting detection switch is turned on, and the lever is separated from the fitting completion position. When linearly moved in the opposite direction, the mating detection switch is turned off to the rotation completion position. When the connector is rotationally moved in the opposite direction, the one cam of the cam pin is guided by the cam groove, the one connector housing is moved away from the other connector housing, and the terminals of both connector housings are not connected to each other. A lever-fitting type power supply circuit characterized in that a circuit which is brought into contact and turned on and off by the fitting detection switch and a power switch by each of the terminals of the both connector housings are connected in series to the power supply circuit. Breaking device. 2. The lever fitting type power circuit breaker according to claim 1, wherein the lever is in the fitting completion position and can be linearly moved with only one finger. Lever fitting type power circuit breaker. 3. The lever fitting type power circuit breaker according to claim 1, wherein the cam groove is provided in the lever, and the cam pin is provided in the other connector housing. Combined power circuit breaker.