WO2023171087A1 - Electric circuit breaker - Google Patents
Electric circuit breaker Download PDFInfo
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- WO2023171087A1 WO2023171087A1 PCT/JP2022/047501 JP2022047501W WO2023171087A1 WO 2023171087 A1 WO2023171087 A1 WO 2023171087A1 JP 2022047501 W JP2022047501 W JP 2022047501W WO 2023171087 A1 WO2023171087 A1 WO 2023171087A1
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- WIPO (PCT)
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- electric circuit
- piece
- base
- housing
- face
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
Definitions
- the present invention relates to an electrical circuit interrupting device that can be mainly used in electrical circuits of automobiles and the like.
- electric circuit breaker devices have been used to protect electric circuits installed in automobiles, etc., and various electrical components connected to the electric circuits. Specifically, when an abnormality occurs in the electrical circuit, the electrical circuit interrupting device physically interrupts the electrical circuit by cutting off a part of the electrical circuit.
- the electric circuit breaking device of Patent Document 1 includes a housing, a part to be cut off which is arranged in the housing and constitutes a part of the electric circuit, and the electrical circuit breaking device of Patent Document 1. a power source disposed on a first end side of the housing; and a movable body that moves within the housing between the first end and a second end opposite to the first end.
- An electric circuit interrupting device comprising: a movable body moving from the first end toward the second end by the power source, and a part of the movable body touching the to-be-interrupted part; disconnect and interrupt the electrical circuit.
- Patent application 2021-100645
- the present invention provides an electric circuit interrupting device that can easily interrupt an electric circuit by suppressing an increase in the power of the power source even when the resistance of the section to be interrupted is lowered. do.
- the electrical circuit interrupting device of the present invention includes a housing, a section to be interrupted that is disposed within the housing and constitutes a part of an electric circuit, a power source disposed on a first end side of the housing, and a power source disposed on a first end side of the housing.
- An electric circuit breaking device comprising: a movable body that moves between the first end and a second end opposite to the first end;
- the base piece is provided with two physically separate base pieces, and the base pieces are electrically connected to each other by applying a pressing force in directions facing each other between the end faces of the base pieces,
- the movable body is configured such that while the movable body is moved from the first end toward the second end by the power source, a part of the movable body interrupts the connection between the base pieces. It is characterized by the presence of
- the electrically connected state is maintained by abutting the separate base pieces against each other by pressing force in opposing directions. Furthermore, when interrupting an electrical circuit, instead of physically cutting the integrally formed part to be interrupted with great force, as in the past, the connection state between the end faces of the base pieces, which were originally separate pieces, is separated. do it. Therefore, even when reducing the resistance of the part to be interrupted, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device. In addition, since a pressing force is applied to the end face of the base piece, the contact resistance between the end face of the base piece and the opposing end face can be kept low, and furthermore, this state can be maintained for a long period of time. .
- the electric circuit interrupting device of the present invention is characterized in that a separation piece is provided between the base pieces, and the separation piece is pressed and sandwiched between the base pieces on both sides by the pressing force.
- the contact resistance between the end face of the base piece and the opposing end face of the separation piece can be suppressed to a low level, and furthermore, this state can be maintained for a long period of time.
- the thickness of the portion where the end surface of the separation piece and the end surface of the base piece contact is the same as that of the external connection terminal connecting the base piece and the electric circuit. It is characterized by being larger than its thickness.
- the thickness of the contact point between the end face of the base piece and the end face of the separation piece is increased. It can be made wider, and as a result, the resistance at the contact point can be lowered and power loss can be suppressed.
- the electric circuit interrupting device of the present invention is characterized in that the end face of the base piece or the end face of the separation piece is plated with a metal whose hardness is lower than that of the metal constituting the to-be-interrupted portion.
- the plating layer with low hardness is strongly pressed and crushed by the end face of the base piece and the end face of the separation piece, which have high hardness. It is possible to more reliably fill gaps caused by minute irregularities on the surface of the end face of the piece, and to suppress contact resistance to a low level.
- the electric circuit interrupting device of the present invention is characterized in that the end face of the base piece or the end face of the separation piece is provided with a recessed face or a protruding face that can be fitted.
- the assembled base piece and separation piece can be fitted and fixed so that they do not shift.
- the electric circuit interrupting device of the present invention even when the resistance of the section to be interrupted is lowered, the power of the power source can be suppressed from increasing and the electric circuit can be easily interrupted.
- (a) is an overall perspective view of a lower housing that constitutes a housing of an electric circuit breaker according to Embodiment 1 of the present invention, and (b) is a plan view of the lower housing.
- (a) is an overall perspective view of an upper housing that constitutes a housing of an electric circuit breaker according to Embodiment 1 of the present invention, and (b) is a bottom view of the upper housing.
- (a) is a perspective view of a movable body of an electric circuit breaker according to Embodiment 1 of the present invention, and (b) is a bottom view of the movable body.
- FIG. 1 is an exploded perspective view of an electric circuit interrupting device according to Embodiment 1 of the present invention
- FIG. 6 is a sectional view taken along the line AA in the assembled state of the electric circuit breaker shown in FIG. 5
- FIG. 7 is a cross-sectional view showing how the moving body has moved from the state shown in FIG. 6;
- FIG. 6 is a sectional view taken along the line AA in the assembled state of the electric circuit breaker shown in FIG. 5;
- FIG. 7 is a cross-sectional view showing how the moving body has moved from the state shown in FIG. 6;
- FIG. 7 is a perspective view of a portion to be interrupted and a lower housing of the electric circuit interrupting device of the present invention according to Embodiment 2; (a) is a side view of the cut-off part and the lower housing of the electric circuit interrupting device of the present invention according to Embodiment 2, and (b) is a side view of the cut-off part fixed to the lower housing. .
- FIG. 7 is a perspective view of a portion to be interrupted and a lower housing of an electric circuit interrupting device of the present invention according to Embodiment 3;
- FIG. 7 is a plan view of a state in which a portion to be interrupted of an electric circuit interrupting device of the present invention according to Embodiment 3 is fixed to a lower housing.
- FIG. 7 is an exploded perspective view showing a portion to be interrupted, a lower housing, and a movable body of an electric circuit interrupting device according to a fourth embodiment. 7 is a sectional view showing an electric circuit interrupting device according to a fourth embodiment, similar to that shown in FIG. 6.
- FIG. 15 is a cross-sectional view of a state in which the moving body has moved from the state shown in FIG. 14.
- FIG. (a) is a perspective view of the to-be-interrupted part of the electric circuit breaker according to Embodiment 5, and (b) is a side view of the to-be-interrupted part.
- FIG. 1 shows a lower housing 100 that constitutes a housing 300 of an electric circuit breaker according to Embodiment 1 of the present invention.
- FIG. 1(a) is an overall perspective view of the lower housing 100
- FIG. 1(b) is a plan view of the lower housing 100.
- the lower housing 100 is a substantially rectangular prism made of an insulator such as synthetic resin, and includes a hollow lower accommodating portion 110 therein.
- the lower accommodating portion 110 extends from the upper surface 120 of the lower housing 100 toward the lower surface 130, and is configured to accommodate a moving body 500, which will be described later.
- the inner surface 111 of the lower housing part 110 is a smooth surface so that the movable body 500 can slide vertically inside.
- a part of the upper surface 120 is provided with a mounting part 113 that is recessed in accordance with the shape of the base piece 430 so that a base piece 430 of a portion to be blocked 400, which will be described later, can be placed thereon.
- This placing part 113 is arranged so as to face both sides of the lower housing part 110, and the placing part 113 supports the linearly extending part 400 to be blocked on both sides.
- the placing part 113 is provided with an engaging inner surface 115 on the inside and an engaging outer surface 116 on the outside so that a claw-shaped fixing part of a base piece 430, which will be described later, can be engaged with the placing part 113.
- the distance between the opposing mounting parts 113 more specifically, the distance between the engaging inner surfaces 115 is L1.
- FIG. 2 shows an upper housing 200 that constitutes a housing 300 of an electric circuit breaker according to Embodiment 1 of the present invention.
- 2(a) is an overall perspective view of the upper housing 200
- FIG. 2(b) is a bottom view of the upper housing 200.
- the upper housing 200 is a substantially rectangular prism made of an insulator such as synthetic resin, and forms a pair with the lower housing 100 shown in FIG. 1 to form a housing 300.
- a hollow upper housing part 210 is provided inside, and this upper housing part 210 extends from the lower surface 230 of the upper housing 200 toward the upper surface 220, and is configured to accommodate a moving body 500, which will be described later.
- the inner surface 211 of the upper housing part 210 is a smooth surface so that the movable body 500 can slide vertically inside.
- this upper housing part 210 is arranged above and below the lower housing part 110 of the lower housing 100 to constitute a housing part 310 that extends linearly. You can move up and down inside.
- an insertion part 213 is formed in a part of the lower surface 230 and is recessed to match the shape of the base piece 430 so that a base piece 430 of a to-be-blocked part 400, which will be described later, can be inserted therethrough.
- the insertion portions 213 are arranged to face both sides of the upper housing portion 210 and are also arranged at positions corresponding to the placement portions 113 of the lower housing 100. Therefore, the insertion portion 213 is fitted from above into the base piece 430 of the blocked portion 400 placed on the placement portion 113 of the lower housing 100.
- a power source storage section 221 in which the power source P is housed is formed in a part of the upper surface 220 side of the upper housing 200.
- the power source storage section 221 communicates with the upper end side of the upper storage section 210.
- power such as air pressure generated from the power source P housed in the power source storage section 221 is transmitted to the movable body 500 within the upper housing section 210 to move the movable body 500.
- the lower housing 100 and the upper housing 200 are approximately square prisms made of synthetic resin, but are not limited to this, as long as they have high insulation properties and are strong enough to withstand use. It may be made of other materials and of any shape.
- FIG. 3 shows a moving body 500 according to Embodiment 1 of the present invention. Note that FIG. 3(a) is a perspective view of the moving body 500, and FIG. 3(b) is a bottom view of the moving body 500.
- the movable body 500 is made of an insulator such as synthetic resin, and has a substantially cylindrical main body 510 on the upper end side, a flat rectangular sliding part 520 in the center, and a lower end side. and a protrusion 530 that protrudes downward.
- a recess 511 is provided at the upper end of the main body 510, and the recess 511 is a portion facing the power source P.
- the sliding portion 520 has a shape corresponding to the inner surface shape of the accommodating portion 310, and as the sliding portion 520 slides on the inner surface of the accommodating portion 310, the movable body 500 maintains its posture along the inside of the accommodating portion 310.
- the surface shape of the lower end 531 of the protruding portion 530 is the same as the surface of the separation piece 420 of the to-be-blocked portion 400, which will be described later. Therefore, the power of the movable body 500 can be efficiently transmitted to the separation piece 420, and the separation piece 420 can be easily separated.
- the movable body 500 is made of synthetic resin, it is not limited to this, and may be made of any other material and have any shape as long as it has high insulation properties and strength enough to withstand use. Further, the surface shape of the lower end 531 of the protruding portion 530 is the same as the surface shape of the separating piece 420 of the blocked portion 400, but is not limited to this. It may have any shape as long as it can be cut by applying a pressing force to the separating piece 420 of the section 400.
- FIG. 4 shows a section to be interrupted 400 that constitutes a part of the electric circuit to be interrupted by the electric circuit interrupter 600 according to Embodiment 1 of the present invention.
- FIG. 4(a) is an exploded perspective view of the blocked portion 400
- FIG. 4(b) is a plan view of the blocked portion 400.
- the part to be cut off 400 is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430 at both ends for connection to the electric circuit, and a portion between the base piece 430. and a separation piece 420 located at.
- a connection hole 410 is formed at the end of the base piece 430 to be used when connecting to an electric circuit.
- the base piece 430 includes a fixing part 440 for fixing to the mounting part 113 of the lower housing 100.
- This fixing portion 440 is formed in a substantially U-shape and includes opposing fixing claws 411 .
- the end surface 431 of the base piece 430 is a flat surface that spreads in the thickness direction of the blocked portion 400.
- the base piece 430 includes a projecting surface 432 projecting from the end surface 431.
- the separation piece 420 On the other hand, on both sides of the separation piece 420, flat end surfaces 421 are provided that extend in the thickness direction of the blocked portion 400. Further, the separation piece 420 includes a recessed surface 422 recessed from an end surface 421. As shown in FIG. 4(a), the separation piece 420 and the base pieces 430 on both sides are separate bodies, but as shown in FIG. 4(b), the end surface 431 of the base piece 430 and the separation piece 420 The end face 421 can be brought into close contact with the end face 421 and assembled so as to be electrically and physically connected to each other.
- the protruding surface 432 of the base piece 430 is fitted into the recessed surface 422 of the separation piece 420, the assembled separation piece 420 and base piece 430 are prevented from shifting from each other.
- the distance between the fixing parts 440 of the base pieces 430 on both sides is L2.
- the separation piece 420 is not limited to the shape shown in FIG. 4, but may have any shape as long as the base pieces 430 on both sides can be electrically and physically connected.
- the protruding surface 432 of the base piece 430 is fitted into the recessed surface 422 of the separation piece 420, the present invention is not limited to this.
- the shapes of the recessed surface 422 and the protruding surface 432 are not limited to the shape shown in FIG. 4, but may be any shape as long as they can be fitted together.
- the blocked section 400 shown in FIG. 4 includes one separation piece 420, the present invention is not limited thereto, and the blocked section 400 may include two or more separation pieces that are separated from each other.
- FIGS. 5 and 6 is an exploded perspective view of the electric circuit breaking device 600
- FIG. 6 is a sectional view taken along line AA in the assembled state of the electric circuit breaking device 600 shown in FIG.
- the base piece 430 of the part to be interrupted 400 is placed on the mounting part 113 of the lower housing 100, and the separating piece 420 is placed in the lower housing part 110 of the lower housing 100.
- the blocked portion 400 is arranged so as to cross the.
- the fixing claws 411 on both sides of the base piece 430 of the cut-off part 400 are brought into contact with the engaging inner surface 115 and the engaging outer surface 116 of the lower housing 100, respectively, and the fixing part 440 of the base piece 430 is attached to the lower housing. It is fixed so as to fit into the mounting portion 113 of 100.
- the base piece 430 is firmly fixed to the mounting portion 113 of the lower housing 100. Since the distance L2 between the fixed parts 440 of the base pieces 430 on both sides is slightly wider than the distance L1 between the opposing mounting parts 113 (L2>L1), the distance (dimension) L2 is wider on both sides.
- the fixing part 440 is fixed so as to be tightly fitted into the mounting parts 113 on both sides with a narrow distance (dimension) L1, and the separating piece 420 between the base pieces 430 has a pusher so as to be sandwiched between the base pieces 430 on both sides. Pressure F is applied.
- a pressing force F is applied between the end surfaces 431 of the base pieces 430 in directions facing each other, and the base pieces 430 on both sides can maintain an electrically connected state via the separating piece 420.
- the pressing force F is applied to the end surface 431 of the base piece 430, the contact resistance between the end surface 431 of the base piece 430 and the opposing end surface (the end surface 421 of the separation piece 420) can be kept low. Furthermore, this state can be maintained for a long period of time.
- end surface 431 of the base piece 430, the end surface 421 of the separation piece 420, or the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420 may be plated to form a plating layer.
- This plating layer fills the gaps caused by minute irregularities on the surfaces of the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420 and suppresses oxidation caused by the surrounding environment, so that the contact resistance can be kept low and maintained for a long period of time.
- this plating layer is made of tin (Sn) or the like, and has a lower hardness than the metal such as copper (Cu) that constitutes the cut-off section 400 (i.e., the separation piece 420 and the base piece 430).
- the plating layer with low hardness is strongly pressed and crushed by the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420, which have high hardness. It is possible to more reliably fill gaps caused by minute irregularities on the surface of the end surface 431 and the end surface 421 of the separation piece 420, and to suppress contact resistance to a low level.
- the plating layer is made of gold (Au), silver (Ag), etc., and has lower hardness than the metal such as copper (Cu) that constitutes the cut-off section 400, and has a higher electrical resistance than the metal such as copper (Cu).
- the conductivity may be higher or the same.
- the upper housing 200 is fitted onto the lower housing 100 so that the main body 510 side of the movable body 500 is inserted into the upper housing part 210 of the upper housing 200. Then, the insertion portion 213 of the upper housing 200 is fitted into the base piece 430 of the blocked portion 400. In this way, the housing 300 consisting of the lower housing 100 and the upper housing 200 is assembled with the blocked part 400 and the movable body 500 accommodated therein.
- a power source P is attached to the power source storage section 221 of the upper housing 200, and a portion of the power source P is accommodated in the recess 511 of the moving body 500.
- the power source P explodes the gunpowder inside the power source P, and uses the air pressure caused by the explosion to house the mobile object 500. It is instantaneously pushed out and moved within the section 310.
- the power source P is not limited to a power source using gunpowder, and may be any other known power source as long as it generates power to move the mobile body 500.
- the movable body 500 is housed inside a housing section 310 that includes a lower housing section 110 and an upper housing section 210 that are arranged in a straight line.
- the housing portion 310 extends from a first end 320 of the housing 300 to a second end 330 opposite the first end 320 . Since the movable body 500 is disposed on the first end 320 side where the power source P is disposed, the second end 330 side of the accommodating portion 310 is hollow. Therefore, as will be described later, the movable body 500 can move toward the second end 330 while cutting the separation piece 420.
- the recess 511 on the upper end side of the moving body 500 is adjacent to the power source P, the air pressure caused by the explosion of gunpowder in the power source P is transmitted to the upper end side of the moving body 500, as will be described later. .
- the assembled and completed electric circuit breaker device 600 is used by being attached to an electric circuit to be protected.
- the base piece 430 of the cut-off section 400 is connected to a part of the electric circuit, so that the cut-off section 400 constitutes a part of the electric circuit.
- the base piece 430 of the section to be interrupted 400 and the separation piece 420 are not disconnected and are physically and electrically connected, so that the current flows between the base piece 430 of the section to be interrupted 400 and the separation piece. 420 in an electrical circuit.
- FIG. 7 is a cross-sectional view showing how the moving body 500 has moved from the state shown in FIG.
- the protrusion 530 of the movable body 500 strongly pushes the separation piece 420 toward the second end 330, the separation piece 420 is separated from the base piece 430, and the base pieces 430 on both sides are in an electrically disconnected state.
- the state in which the base pieces 430 on both sides of the part to be cut off 400 are energized via the separation piece 420 is cut off, and it is possible to prevent overcurrent from flowing in the electric circuit.
- the force of the protruding portion 530 of the movable body 500 that strongly pushes the separation piece 420 toward the second end portion 330 is greater than the pressing force F caused by the base pieces 430 on both sides sandwiching and holding the separation piece 420, so that the movable body 500 can separate the separation piece 420 from the base piece 430. Furthermore, since the direction of the force of the movable body 500 pushing out the separation piece 420 toward the second end 330 side and the direction of the pressing force F caused by the base pieces 430 on both sides sandwiching and holding the separation piece 420 intersect, The motive power of the movable body 500 is efficiently transmitted to the separation piece 420, and the movable body 500 can easily separate the separation piece 420 from the base piece 430.
- the direction of the force of the movable body 500 pushing out the separation piece 420 toward the second end 330 side is orthogonal to the direction of the pressing force F that causes the base pieces 430 on both sides to sandwich and hold the separation piece 420.
- the power of the movable body 500 is more efficiently transmitted to the separation piece 420, and the movable body 500 can more easily separate the separation piece 420 from the base piece 430.
- the thickness (plate thickness) of the cut-off section 400 can be made thick like the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400 is reduced to suppress power loss.
- the separate base pieces 430 are butted against each other with a pressing force F in opposing directions to maintain the electrically connected state.
- the connection between the end surfaces 431 of the base piece 430, which were originally separate parts is Just separate it. Therefore, even when lowering the resistance of the section to be interrupted 400, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device.
- a pressing force F is applied between the end surfaces 431 of the base pieces 430 in directions facing each other to electrically connect the base pieces 430 to each other.
- the pressing means for connecting the base piece 430 is in the form of a claw-shaped fixing part 400, but is not limited thereto. In addition, any configuration may be used as long as the base pieces 430 can be electrically connected to each other.
- FIG. 8 is a perspective view of a to-be-interrupted part 400A and a lower housing 100A of an electric circuit breaker 600A according to the second embodiment
- FIG. 9(a) is a side view of the to-be-interrupted part 400A and a lower housing 100A
- FIG. 9(b) is a side view of the blocked portion 400A fixed to the lower housing 100A.
- the configuration of the electric circuit breaker 600A according to the second embodiment is different from the configuration of the electric circuit breaker 600 according to the first embodiment in the configuration in which the section to be interrupted 400A is fixed to the lower housing 100A, but other configurations are different. is basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, so the description of the same configuration will be omitted.
- a part of the upper surface 120 of the lower housing 100 is provided with a recess that matches the shape of the base piece 430A so that the base piece 430A of the blocked part 400A can be placed thereon. It is provided with a placing part 113A.
- the placing portion 113A is arranged to face both sides of the lower housing portion 110A, and the placing portion 113A supports the linearly extending portion 400A to be blocked on both sides.
- a fixing hole 117A is formed in the mounting portion 113A so that a rod-shaped fixing portion 440A of the base piece 430A can be inserted therein.
- the distance between the opposing fixing holes 117A is L1A.
- the cut-off portion 400A is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430A for connecting to the electric circuit at both ends, and a base piece 430A for connecting to the electric circuit. 420A of separation pieces located between.
- the base piece 430A includes a fixing part 440A for fixing to the mounting part 113A of the lower housing 100A. This fixing part 440A is formed into a rod shape, and the tip 443A of the fixing part 440A can be inserted into the fixing hole 117A of the mounting part 113A and fixed.
- the separation piece 420A and the base pieces 430A on both sides are separate bodies, they are assembled so that the end face 431A of the base piece 430A and the end face 421A of the separation piece 420A are brought into close contact with each other and electrically and physically connected to each other. be able to.
- the distance between the fixing parts 440A of the base pieces 430A on both sides is L2A.
- a pressing force FA is applied to the separation piece 420A so as to be sandwiched between the base pieces 430A on both sides. Then, a pressing force FA is applied to the end surfaces 431A of the base pieces 430A in directions facing each other, and the base pieces 430A on both sides can maintain an electrically connected state via the separation piece 420A.
- the pressing force FA is applied to the end surface 431A of the base piece 430A, the contact resistance between the end surface 431A of the base piece 430A and the opposing end surface (the end surface 421A of the separation piece 420A) can be kept low.
- the pressing force FA in the direction facing each other is applied between the end surfaces 431A of the base pieces 430A to electrically connect the base pieces 430A to each other.
- the pressing means for connection is in the form of a rod-shaped fixing portion 400A.
- the configuration for separating the separation piece 420A and breaking the electric circuit is the same as that of the electric circuit breaking device according to the first embodiment described in FIGS. 6 and 7. Same as 600.
- the thickness of the cut-off section 400A can be increased similarly to the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400A is reduced to suppress power loss.
- the separate base pieces 430A are butted against each other with a pressing force FA in opposing directions to maintain the electrically connected state. .
- FIG. 10 is a perspective view of the cut-off part 400B and the lower housing 100B of the electric circuit breaking device 600B according to the third embodiment
- FIG. 11 is a plan view of the cut-off part 400B fixed to the lower housing 100B.
- the configuration of the electric circuit interrupting device 600B according to the third embodiment is different from the electric circuit interrupting device 600 according to the first embodiment in that the disconnected portion 400B is fixed to the lower housing 100B and the tension spring 450B is provided.
- the other configurations are basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, so the description of the same configurations will be omitted.
- a part of the upper surface 120A of the lower housing 100A is recessed to match the shape of the base piece 430B so that the base piece 430B of the blocked part 400B can be placed thereon.
- This placing part 113B is arranged so as to face both sides of the lower housing part 110B, and the placing part 113B supports the linearly extending part to be blocked 400B on both sides. Further, a convex fixing claw 118B is formed on the mounting portion 113B.
- the part to be interrupted 400B is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430B at both ends for connection to the electric circuit, and a portion between the base piece 430B. and a separation piece 420B located at . Furthermore, mounting portions 435B are provided at both ends of the base piece 430B, on which the ends of the tension spring 450B can be hooked and fixed. Insulation treatment is applied to both ends (451B, 452B) of the tension spring 450B. Further, the mounting portion 435B of the base piece 430B may be subjected to insulation treatment.
- the base piece 430B includes a fixing part 440B for fixing to the mounting part 113B of the lower housing 100B.
- This fixing part 440B is formed in a notch shape, and can be fixed by engaging with the fixing claw 118B of the mounting part 113B. Therefore, after the separation piece 420B is separated, the base piece 430B can be prevented from being pulled and moved by the tension spring 450B.
- the separation piece 420B and the base pieces 430B on both sides are separate bodies, the end surface 431B of the base piece 430B and the end surface 421B of the separation piece 420B are brought into close contact with each other to provide electrical and They can be assembled so that they are physically connected to each other.
- one end 451B of the tension spring 450B is attached to the attachment part 435B of one base piece 430B, and the other end 452B of the tension spring 450B is attached to the attachment part 435B of the other base piece 430B.
- a pressing force FB is applied to the separating piece 420B between the base pieces 430B so that it is sandwiched between the base pieces 430B on both sides. Then, a pressing force FB in directions facing each other is applied to the end surfaces 431B of the base pieces 430B, and the base pieces 430B on both sides can maintain an electrically connected state via the separating pieces 420B.
- the pressing force FB is applied to the end surface 431B of the base piece 430B, the contact resistance between the end surface 431B of the base piece 430B and the opposing end surface (the end surface 421B of the separation piece 420B) can be kept low.
- the pressing force FB in the direction facing each other is applied between the end surfaces 431B of the base pieces 430B to electrically connect the base pieces 430B to each other.
- the pressing means to be connected is in the form of a tension spring 450B. Further, by changing the tensile force of the tension spring 450B, the magnitude of the pressing force FB can be changed as appropriate.
- the configuration for separating the separation piece 420B to interrupt the electric circuit is different from the electric circuit breaking device 600B of the present invention according to Embodiment 1, which is explained in FIGS. 6 and 7. It is the same as circuit breaker device 600.
- the thickness of the cut-off section 400B can be increased similarly to the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400B is reduced to suppress power loss.
- the separate base pieces 430B are butted against each other with a pressing force FB in opposing directions to maintain the electrically connected state. .
- FIG. 12(a) is a perspective view of a cut-off portion 400C of an electric circuit breaking device 600C according to the fourth embodiment
- FIG. 12(b) is a perspective view of a cut-off portion 400C of the electric circuit breaking device 600C according to the fourth embodiment
- FIG. 13 is an exploded perspective view showing the cut-off part 400C, the lower housing 100C, and the movable body 500C
- FIG. 14 shows the electric circuit interrupting device 600C in the same way as shown in FIG. The cross-sectional view of FIG.
- FIG. 15 is a cross-sectional view of a state in which the movable body 500C has moved from the state shown in FIG. 14.
- the configuration of the electric circuit interrupting device 600C according to the fourth embodiment is different from the configuration of the electric circuit interrupting device 600 according to the first embodiment in the configurations of the moving body 500C and the section to be interrupted 400C, but the other configurations are the same as those in the embodiment. Since the configuration is basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, a description of the same configuration will be omitted.
- the cut-off portion 400C is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has base pieces 430C at both ends for connection to the electric circuit. Equipped with Similar to the blocked part 400 of the first embodiment shown in FIG. 4, the blocked part 400C includes a fixing part 440C for fixing to the mounting part 113C of the lower housing 100C. However, the cut-off section 400C does not include the separation piece 420 like the cut-off section 400 of Embodiment 1 shown in FIG. . Specifically, the distal end side of the base piece 430C is a bending part 437C that can be bent by being pressed by a moving body 500C, which will be described later.
- a score line 438C that crosses in the width direction is provided. Further, an end surface 431C of the base piece 430C is a flat surface that extends in the thickness direction of the blocked portion 400C. Furthermore, the base piece 430C includes a protruding surface 432C protruding from the end surface 431C and a recessed surface 433C recessed from the end surface 431C.
- the base pieces 430C on both sides are separate pieces, they are assembled so that the end surfaces 431C of the base pieces 430C are brought into close contact with each other and electrically and physically connected to each other. I can do it.
- the protruding surface 432C of one base piece 430C is fitted into the recessed surface 433C of the other base piece 430C, the assembled base pieces 430C are prevented from shifting from each other.
- the distance between the fixing parts 440C of the base pieces 430C on both sides is L2C.
- the base piece 430C includes both a protruding surface 432C and a recessed surface 433C, the present invention is not limited to this, and may include only one of the protruding surface 432C or the recessed surface 433C.
- the base piece 430C of the cut-off part 400C is placed on the mounting part 113C of the lower housing 100C, and the base piece 430C
- the blocked portion 400C is arranged such that the bent portion 437C crosses the lower accommodation portion 110 of the lower housing 100.
- the lower housing 100C has the same configuration as the lower housing 100 of the first embodiment. Similarly to the method of fixing the lower housing 100 and the blocked part 400 in Embodiment 1, as shown in FIG. fixed to match.
- the base piece 430C is firmly fixed to the mounting portion 113C of the lower housing 100C. Since the distance L2C between the fixing parts 440C of the base pieces 430C on both sides is slightly wider than the distance L1C between the opposing mounting parts 113C (L2C>L1C), the distance (dimension) L2C is wider on both sides.
- the fixing portion 440C is fixed so as to be tightly fitted into the mounting portions 113C on both sides with a narrow distance (dimension) L1C, and a pressing force FC is applied to the end surface 431C of the base piece 430C in the direction opposite to each other.
- the base piece 430C can remain electrically connected.
- the contact resistance between the end surfaces 431C of the base pieces 430C can be kept low, and furthermore, this state can be maintained for a long period of time. .
- an abnormality such as an overcurrent flowing through the electric circuit
- an abnormality signal is input to the power source PC, and the gunpowder in the power source PC explodes.
- the movable body 500C is blown away from the first end 320C toward the second end 330C, and instantly moves inside the housing section 310C toward the second end 330C.
- the protruding portion 530C of the movable body 500C has a sharp tip and is located directly above the point where the end surfaces 431C of the base piece 430C are in contact with each other.
- the protrusion 530C of the movable body 500C strongly pushes out the vicinity of the boundary between the end surfaces 431C of the base piece 430C toward the second end 330C.
- the bent portions 437C of the base pieces 430C on both sides are bent toward the second end 330 by the protrusion 530C of the movable body 500C, and are separated from each other, so that the base pieces 430C on both sides are electrically disconnected. state.
- the base pieces 430C on both sides of the cut-off section 400C contact each other and the energized state is cut off, making it possible to prevent overcurrent from flowing in the electric circuit.
- the force with which the protrusion 530C of the movable body 500C bends the bent portion 437C of the base piece 430C toward the second end 330C is greater than the pressing force FC, so the movable body 500C bends the bent portion 437C of the base piece 430C. can be bent toward the second end 330C to separate the bent portions 437C on both sides from each other.
- the motive force of the movable body 500C is efficiently transmitted to the bending portion 437C, and the movable body 500C can easily bend the bending portion 437C.
- the thickness of the cut-off section 400C can be made thick like the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400C is reduced to suppress power loss.
- the separate base pieces 430C are butted against each other with a pressing force FC in opposing directions to maintain the electrically connected state.
- FIG. 16(a) is a perspective view of a section to be interrupted 400D of an electric circuit interrupting device 600D according to the fifth embodiment
- FIG. 16(b) is a side view of the section to be interrupted 400D.
- the configuration of the electric circuit interrupting device 600D according to the fifth embodiment is different from the disconnected portion 400A of the electric circuit interrupting device 600A according to the second embodiment in the thickness of the disconnected portion 400D, but the other configurations are different from those in the embodiment. Since the configuration is basically the same as that of the electric circuit interrupting device 600A according to the second embodiment, the explanation of the same configuration will be omitted.
- the thickness of the portion where the end surface 431D of the base piece 430D and the end surface 421D of the separation piece 420D contact is W1.
- the thickness of an external connection terminal 439D connected to an external electric circuit is W2.
- the thickness W1 of the contact portion is larger than the thickness W2 of the external connection terminal 439D (W1>W2).
- the electric circuit interrupting device of the present invention is not limited to the above embodiments, and various modifications and combinations are possible within the scope of the claims and the embodiments, and these modifications , combinations are also included within the scope of the right.
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Abstract
The present invention provides an electric circuit breaker that minimizes any increase in the motive power of a motive power source and that can easily break an electric circuit, even when the resistance of a part to be broken is reduced. An electric circuit breaker 600 comprising a housing 300, a part 400 to be broken that is disposed inside the housing 300 and constitutes part of an electric circuit, a motive power source P disposed on a first-end-part 320 side of the housing 300, and a moving body 500 that moves within the housing 300 between the first end part 320 and a second end part 330 on the side opposite from the first end part 320, the electric circuit breaker 600 being characterized in that: the part 400 to be broken is provided with two physically separate base pieces 430; pressing force F is applied in mutually opposing directions between end surfaces 431 of the base pieces 430 to electrically connect the base pieces 430 to each other; and while the moving body 500 is caused to move from the first end part 320 toward the second end part 330 by the motive power source P, part of the moving body 500 breaks the connection between the base pieces 430.
Description
本願発明は、主に自動車等の電気回路に使用することができる電気回路遮断装置に関する。
TECHNICAL FIELD The present invention relates to an electrical circuit interrupting device that can be mainly used in electrical circuits of automobiles and the like.
従来から、電気回路遮断装置は、自動車等に搭載されている電気回路や、電気回路に接続されている各種電装品を保護するために用いられてきた。詳しくは、電気回路に異常が生じた場合に、電気回路遮断装置は電気回路の一部を切断して、物理的に電気回路を遮断していた。
Conventionally, electric circuit breaker devices have been used to protect electric circuits installed in automobiles, etc., and various electrical components connected to the electric circuits. Specifically, when an abnormality occurs in the electrical circuit, the electrical circuit interrupting device physically interrupts the electrical circuit by cutting off a part of the electrical circuit.
そして、この電気回路遮断装置は様々な種類があり、例えば、特許文献1の電気回路遮断装置は、ハウジングと、当該ハウジング内に配置され、電気回路の一部を構成する被遮断部と、前記ハウジングの第一端部側に配置される動力源と、前記ハウジング内を、前記第一端部と、当該第一端部の反対側の第二端部との間で移動する移動体とを備えた、電気回路遮断装置であって、移動体が、前記動力源によって、前記第一端部から前記第二端部に向けて移動しつつ、当該移動体の一部が前記被遮断部を切断して、電気回路を遮断している。
There are various types of this electric circuit breaking device. For example, the electric circuit breaking device of Patent Document 1 includes a housing, a part to be cut off which is arranged in the housing and constitutes a part of the electric circuit, and the electrical circuit breaking device of Patent Document 1. a power source disposed on a first end side of the housing; and a movable body that moves within the housing between the first end and a second end opposite to the first end. An electric circuit interrupting device comprising: a movable body moving from the first end toward the second end by the power source, and a part of the movable body touching the to-be-interrupted part; disconnect and interrupt the electrical circuit.
ところで、近年の自動車等の高性能化によって電気回路にかかる電圧や電流が大きくなる傾向にあるため、電気回路の一部を構成する被遮断部を流れる電流による発熱、つまり電力損失も大きくなっている。そこで、被遮断部の厚みを厚くするなどして切断断面積を大きくし、被遮断部の低抵抗化を図ることで、電力損失を抑えていた。しかしながら、切断断面積を大きくすると、被遮断部を切断するための動力を大きくしなければならず、その結果、大きくなった動力(火薬の爆発力など)に耐えられるように、ハウジングの強度を更に向上させる必要がある。また、それに伴って、ハウジングが大きくなり、電気回路遮断装置の大型化や価格が上がるという問題がある。
By the way, as the performance of automobiles and other vehicles has improved in recent years, the voltage and current applied to electric circuits have tended to increase, so the heat generated by the current flowing through the disconnected part that forms part of the electric circuit, that is, the power loss, has also increased. There is. Therefore, power loss has been suppressed by increasing the thickness of the cut-off section to increase the cutting cross-sectional area and lowering the resistance of the cut-off section. However, if the cutting cross-sectional area is increased, the power required to cut the part to be cut must be increased, and as a result, the strength of the housing must be increased to withstand the increased power (such as the explosive force of gunpowder). We need to improve further. Additionally, along with this, there is a problem in that the housing becomes larger and the electric circuit interrupting device becomes larger and more expensive.
そこで、本願発明は、上記問題に鑑み、被遮断部の低抵抗化を行う場合であっても、動力源の動力が大きくなることを抑え、電気回路を容易に遮断できる電気回路遮断装置を提供する。
Therefore, in view of the above-mentioned problems, the present invention provides an electric circuit interrupting device that can easily interrupt an electric circuit by suppressing an increase in the power of the power source even when the resistance of the section to be interrupted is lowered. do.
本願発明の電気回路遮断装置は、ハウジングと、当該ハウジング内に配置され、電気回路の一部を構成する被遮断部と、前記ハウジングの第一端部側に配置される動力源と、前記ハウジング内を、前記第一端部と、当該第一端部の反対側の第二端部との間で移動する移動体とを備えた、電気回路遮断装置であって、前記被遮断部は、物理的に別体である2つの基部片を備えており、前記基部片の端面の間に、互いに相対する方向への押圧力を加えて、前記基部片同士を電気的に接続させており、前記移動体は、前記動力源によって、前記第一端部から前記第二端部に向けて移動しつつ、前記移動体の一部が、前記基部片間の接続を遮断するように構成されていることを特徴とする。
The electrical circuit interrupting device of the present invention includes a housing, a section to be interrupted that is disposed within the housing and constitutes a part of an electric circuit, a power source disposed on a first end side of the housing, and a power source disposed on a first end side of the housing. An electric circuit breaking device comprising: a movable body that moves between the first end and a second end opposite to the first end; The base piece is provided with two physically separate base pieces, and the base pieces are electrically connected to each other by applying a pressing force in directions facing each other between the end faces of the base pieces, The movable body is configured such that while the movable body is moved from the first end toward the second end by the power source, a part of the movable body interrupts the connection between the base pieces. It is characterized by the presence of
上記特徴によれば、別体である基部片同士を互いに相対する方向への押圧力で突き合わせて電気的に接続された状態を維持している。さらに、電気回路を遮断する際は、従来のように一体形成された被遮断部を大きな力で物理的に切断するのではなく、元々別体であった基部片の端面間の接続状態を分離すればよい。そのため、被遮断部の低抵抗化を行う場合であっても、従来よりも少ない動力で、電気回路を容易に遮断でき、電気回路遮断装置の大型化や製造コストを抑えることができる。また、基部片の端面には押圧力が加わっているので、基部片の端面と、相対する端面との間の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができる。
According to the above feature, the electrically connected state is maintained by abutting the separate base pieces against each other by pressing force in opposing directions. Furthermore, when interrupting an electrical circuit, instead of physically cutting the integrally formed part to be interrupted with great force, as in the past, the connection state between the end faces of the base pieces, which were originally separate pieces, is separated. do it. Therefore, even when reducing the resistance of the part to be interrupted, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device. In addition, since a pressing force is applied to the end face of the base piece, the contact resistance between the end face of the base piece and the opposing end face can be kept low, and furthermore, this state can be maintained for a long period of time. .
本願発明の電気回路遮断装置は、前記基部片の間に分離片が設けられ、前記分離片は、前記押圧力によって、両側の前記基部片に押圧されて挟まれていることを特徴とする。
The electric circuit interrupting device of the present invention is characterized in that a separation piece is provided between the base pieces, and the separation piece is pressed and sandwiched between the base pieces on both sides by the pressing force.
上記特徴によれば、基部片の端面と、相対する分離片の端面との間の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができる。
According to the above feature, the contact resistance between the end face of the base piece and the opposing end face of the separation piece can be suppressed to a low level, and furthermore, this state can be maintained for a long period of time.
本願発明の電気回路遮断装置は、前記被遮断部において、前記分離片の端面と前記基部片の端面とが接触する箇所の厚みは、前記基部片と前記電気回路とを接続する外部接続端子の厚みよりも、大きいことを特徴とする。
In the electric circuit interrupting device of the present invention, in the section to be interrupted, the thickness of the portion where the end surface of the separation piece and the end surface of the base piece contact is the same as that of the external connection terminal connecting the base piece and the electric circuit. It is characterized by being larger than its thickness.
上記特徴によれば、基部片の端面と分離片の端面との接触箇所の厚みを、他の部分よりも局所的に大きくすることで、基部片の端面と分離片の端面との接触面積をより広くすることができ、その結果、接触箇所における低抵を低くして電力損失を抑えることが出来る。
According to the above feature, by making the thickness of the contact point between the end face of the base piece and the end face of the separation piece locally larger than other parts, the contact area between the end face of the base piece and the end face of the separation piece is increased. It can be made wider, and as a result, the resistance at the contact point can be lowered and power loss can be suppressed.
本願発明の電気回路遮断装置は、前記基部片の端面又は前記分離片の端面には、前記被遮断部を構成する金属よりも硬度が低い金属がメッキされていることを特徴とする。
The electric circuit interrupting device of the present invention is characterized in that the end face of the base piece or the end face of the separation piece is plated with a metal whose hardness is lower than that of the metal constituting the to-be-interrupted portion.
上記特徴によれば、押圧力が加わった際に、硬度が低いメッキ層は、硬度が高い基部片の端面や分離片の端面によって強く押圧されて押し潰されることから、基部片の端面や分離片の端面の表面の微小な凹凸による隙間をより確実に埋め、接触抵抗を低く抑えることができる。
According to the above feature, when a pressing force is applied, the plating layer with low hardness is strongly pressed and crushed by the end face of the base piece and the end face of the separation piece, which have high hardness. It is possible to more reliably fill gaps caused by minute irregularities on the surface of the end face of the piece, and to suppress contact resistance to a low level.
本願発明の電気回路遮断装置は、前記基部片の端面又は前記分離片の端面には、嵌め合い可能な窪面又は突出面が設けられていることを特徴とする。
The electric circuit interrupting device of the present invention is characterized in that the end face of the base piece or the end face of the separation piece is provided with a recessed face or a protruding face that can be fitted.
組付けられた基部片や分離片がズレないように、嵌め合わせて固定できる。
The assembled base piece and separation piece can be fitted and fixed so that they do not shift.
上記のように、本願発明の電気回路遮断装置によれば、被遮断部の低抵抗化を行う場合であっても、動力源の動力が大きくなることを抑え、電気回路を容易に遮断できる。
As described above, according to the electric circuit interrupting device of the present invention, even when the resistance of the section to be interrupted is lowered, the power of the power source can be suppressed from increasing and the electric circuit can be easily interrupted.
As described above, according to the electric circuit interrupting device of the present invention, even when the resistance of the section to be interrupted is lowered, the power of the power source can be suppressed from increasing and the electric circuit can be easily interrupted.
300 ハウジング
320 第一端部
330 第二端部
400 被遮断部
430 基部片
500 移動体
600 電気回路遮断装置
F 押圧力
P 動力源
300Housing 320 First end 330 Second end 400 Part to be interrupted 430 Base piece 500 Moving body 600 Electric circuit breaker F Pressing force P Power source
320 第一端部
330 第二端部
400 被遮断部
430 基部片
500 移動体
600 電気回路遮断装置
F 押圧力
P 動力源
300
以下に、本願発明の各実施形態について、図面を用いて説明する。なお、以下で説明する実施形態における電気回路遮断装置の各部材の形状や材質等は、一例を示すものであって、これらに限定されるものではない。
Each embodiment of the present invention will be described below with reference to the drawings. In addition, the shape, material, etc. of each member of the electric circuit breaker in the embodiment described below show an example, and are not limited to these.
<実施形態1>
まず、本願発明の実施形態1に係る電気回路遮断装置のハウジング300を構成する下側ハウジング100を図1に示す。なお、図1(a)は、下側ハウジング100の全体斜視図、図1(b)は、下側ハウジング100の平面図である。 <Embodiment 1>
First, FIG. 1 shows alower housing 100 that constitutes a housing 300 of an electric circuit breaker according to Embodiment 1 of the present invention. Note that FIG. 1(a) is an overall perspective view of the lower housing 100, and FIG. 1(b) is a plan view of the lower housing 100.
まず、本願発明の実施形態1に係る電気回路遮断装置のハウジング300を構成する下側ハウジング100を図1に示す。なお、図1(a)は、下側ハウジング100の全体斜視図、図1(b)は、下側ハウジング100の平面図である。 <
First, FIG. 1 shows a
図1に示すように、下側ハウジング100は、合成樹脂等の絶縁体で形成された略四角柱体であり、内部に中空状の下側収容部110を備える。この下側収容部110は、下側ハウジング100の上面120から下面130に向けて延びており、後述する移動体500を収容できるように構成されている。また、下側収容部110の内面111は、移動体500が内部を上下方向にスライドできるように、滑らかな面となっている。
As shown in FIG. 1, the lower housing 100 is a substantially rectangular prism made of an insulator such as synthetic resin, and includes a hollow lower accommodating portion 110 therein. The lower accommodating portion 110 extends from the upper surface 120 of the lower housing 100 toward the lower surface 130, and is configured to accommodate a moving body 500, which will be described later. Moreover, the inner surface 111 of the lower housing part 110 is a smooth surface so that the movable body 500 can slide vertically inside.
さらに、上面120の一部には、後述する被遮断部400の基部片430を載置できるように、基部片430の形状に合わせて窪んだ載置部113を備える。この載置部113は、下側収容部110の両側に相対する様に配置されており、載置部113は、直線状に延びる被遮断部400を両側で支えることになる。また、載置部113には、後述する基部片430の爪状の固定部が係合できるように、載置部113の内側に係合内面115と外側に係合外面116を備える。そして、相対する載置部113間の距離、より具体的には、係合内面115間の距離は、L1となっている。
Furthermore, a part of the upper surface 120 is provided with a mounting part 113 that is recessed in accordance with the shape of the base piece 430 so that a base piece 430 of a portion to be blocked 400, which will be described later, can be placed thereon. This placing part 113 is arranged so as to face both sides of the lower housing part 110, and the placing part 113 supports the linearly extending part 400 to be blocked on both sides. Further, the placing part 113 is provided with an engaging inner surface 115 on the inside and an engaging outer surface 116 on the outside so that a claw-shaped fixing part of a base piece 430, which will be described later, can be engaged with the placing part 113. The distance between the opposing mounting parts 113, more specifically, the distance between the engaging inner surfaces 115 is L1.
次に、本願発明の実施形態1に係る電気回路遮断装置のハウジング300を構成する上側ハウジング200を図2に示す。図2(a)は、上側ハウジング200の全体斜視図、図2(b)は、上側ハウジング200の底面図である。
Next, FIG. 2 shows an upper housing 200 that constitutes a housing 300 of an electric circuit breaker according to Embodiment 1 of the present invention. 2(a) is an overall perspective view of the upper housing 200, and FIG. 2(b) is a bottom view of the upper housing 200.
図2に示すように、上側ハウジング200は、合成樹脂等の絶縁体で形成された略四角柱体であり、図1に示す下側ハウジング100と対をなしてハウジング300を構成するものである。そして、内部に中空状の上側収容部210を備え、この上側収容部210は、上側ハウジング200の下面230から上面220に向けて延びており、後述する移動体500を収容できるように構成されている。また、上側収容部210の内面211は、移動体500が内部を上下方向にスライドできるように、滑らかな面となっている。この上側収容部210は、後述するように、下側ハウジング100の下側収容部110と上下に配置されて、直線状に延びる収容部310を構成するものであり、移動体500は収容部310内を上下に移動できるのである。
As shown in FIG. 2, the upper housing 200 is a substantially rectangular prism made of an insulator such as synthetic resin, and forms a pair with the lower housing 100 shown in FIG. 1 to form a housing 300. . A hollow upper housing part 210 is provided inside, and this upper housing part 210 extends from the lower surface 230 of the upper housing 200 toward the upper surface 220, and is configured to accommodate a moving body 500, which will be described later. There is. Moreover, the inner surface 211 of the upper housing part 210 is a smooth surface so that the movable body 500 can slide vertically inside. As will be described later, this upper housing part 210 is arranged above and below the lower housing part 110 of the lower housing 100 to constitute a housing part 310 that extends linearly. You can move up and down inside.
さらに、下面230の一部には、後述する被遮断部400の基部片430を挿通できるように、基部片430の形状に合わせて窪んだ挿通部213が形成されている。この挿通部213は、上側収容部210の両側に相対する様に配置されると共に、下側ハウジング100の載置部113と対応する位置に配置されている。そのため、挿通部213は、下側ハウジング100の載置部113に載置された被遮断部400の基部片430に上方から嵌め合わせられる。
Furthermore, an insertion part 213 is formed in a part of the lower surface 230 and is recessed to match the shape of the base piece 430 so that a base piece 430 of a to-be-blocked part 400, which will be described later, can be inserted therethrough. The insertion portions 213 are arranged to face both sides of the upper housing portion 210 and are also arranged at positions corresponding to the placement portions 113 of the lower housing 100. Therefore, the insertion portion 213 is fitted from above into the base piece 430 of the blocked portion 400 placed on the placement portion 113 of the lower housing 100.
さらに、上側ハウジング200の上面220側の一部には、動力源Pが収容される動力源収納部221が形成されている。そして、動力源収納部221は、上側収容部210の上端側と連通している。詳しくは後述するが、動力源収納部221内に収容された動力源Pから生じた空気圧等の動力が、上側収容部210内の移動体500へ伝わり、移動体500を移動させるのである。なお、下側ハウジング100及び上側ハウジング200は、合成樹脂で形成された略四角柱体となっているが、これに限定されず、絶縁性が高く、使用に耐えうる強度を備えていれば、他の材料で任意の形状としてもよい。
Furthermore, a power source storage section 221 in which the power source P is housed is formed in a part of the upper surface 220 side of the upper housing 200. The power source storage section 221 communicates with the upper end side of the upper storage section 210. As will be described in detail later, power such as air pressure generated from the power source P housed in the power source storage section 221 is transmitted to the movable body 500 within the upper housing section 210 to move the movable body 500. Note that the lower housing 100 and the upper housing 200 are approximately square prisms made of synthetic resin, but are not limited to this, as long as they have high insulation properties and are strong enough to withstand use. It may be made of other materials and of any shape.
では次に、本願発明の実施形態1に係る移動体500を図3に示す。なお、図3(a)は移動体500の斜視図、図3(b)は移動体500の底面図である。
Next, FIG. 3 shows a moving body 500 according to Embodiment 1 of the present invention. Note that FIG. 3(a) is a perspective view of the moving body 500, and FIG. 3(b) is a bottom view of the moving body 500.
図3に示すように、移動体500は、合成樹脂等の絶縁体で形成されており、上端側に略円柱状の本体510と、中央に平坦な四角形状の摺動部520と、下端側に下方へ突出する突出部530とを備える。本体510の上端には窪み部511が設けられており、窪み部511は動力源Pと相対する部分となっている。摺動部520は収容部310の内面形状に対応する形状となっており、摺動部520が収容部310の内面を摺動することで、移動体500が収容部310の内側に沿って姿勢を維持したまま滑らかにスライドできる。また、突出部530の下端531の表面形状は、後述する被遮断部400の分離片420の表面と同じ形状をしている。そのため、移動体500の動力を分離片420に効率的に伝達して、分離片420を容易に分離できる。
As shown in FIG. 3, the movable body 500 is made of an insulator such as synthetic resin, and has a substantially cylindrical main body 510 on the upper end side, a flat rectangular sliding part 520 in the center, and a lower end side. and a protrusion 530 that protrudes downward. A recess 511 is provided at the upper end of the main body 510, and the recess 511 is a portion facing the power source P. The sliding portion 520 has a shape corresponding to the inner surface shape of the accommodating portion 310, and as the sliding portion 520 slides on the inner surface of the accommodating portion 310, the movable body 500 maintains its posture along the inside of the accommodating portion 310. You can slide smoothly while maintaining the Further, the surface shape of the lower end 531 of the protruding portion 530 is the same as the surface of the separation piece 420 of the to-be-blocked portion 400, which will be described later. Therefore, the power of the movable body 500 can be efficiently transmitted to the separation piece 420, and the separation piece 420 can be easily separated.
なお、移動体500は、合成樹脂で形成されているが、これに限定されず、絶縁性が高く、使用に耐えうる強度を備えていれば、他の材料で任意の形状としてもよい。また、突出部530の下端531の表面形状は、被遮断部400の分離片420の表面形状と同じ形状をしているが、これに限定されず、移動体500の突出部530が、被遮断部400の分離片420に押圧力を加えて切断できるのであれば、任意の形状であってもよい。
Although the movable body 500 is made of synthetic resin, it is not limited to this, and may be made of any other material and have any shape as long as it has high insulation properties and strength enough to withstand use. Further, the surface shape of the lower end 531 of the protruding portion 530 is the same as the surface shape of the separating piece 420 of the blocked portion 400, but is not limited to this. It may have any shape as long as it can be cut by applying a pressing force to the separating piece 420 of the section 400.
では次に、本願発明の実施形態1に係る電気回路遮断装置600が遮断する電気回路の一部を構成する被遮断部400を図4に示す。なお、図4(a)は被遮断部400の分解斜視図、図4(b)は被遮断部400の平面図である。
Next, FIG. 4 shows a section to be interrupted 400 that constitutes a part of the electric circuit to be interrupted by the electric circuit interrupter 600 according to Embodiment 1 of the present invention. Note that FIG. 4(a) is an exploded perspective view of the blocked portion 400, and FIG. 4(b) is a plan view of the blocked portion 400.
被遮断部400は、電気回路と電気的に接続するために全体が銅などの金属製の導電体となっており、両端に電気回路と接続するための基部片430と、基部片430の間に位置する分離片420とを備える。基部片430の端部には、電気回路と接続する際に利用する接続孔410が形成されている。また、基部片430は、下側ハウジング100の載置部113に固定するための固定部440を備える。この固定部440は、略コ字状に形成されており、相対する固定爪411を備える。また、基部片430の端面431は、被遮断部400の厚み方向に広がる平坦面となっている。さらに、基部片430は、端面431から突出する突出面432を備える。
The part to be cut off 400 is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430 at both ends for connection to the electric circuit, and a portion between the base piece 430. and a separation piece 420 located at. A connection hole 410 is formed at the end of the base piece 430 to be used when connecting to an electric circuit. Furthermore, the base piece 430 includes a fixing part 440 for fixing to the mounting part 113 of the lower housing 100. This fixing portion 440 is formed in a substantially U-shape and includes opposing fixing claws 411 . Further, the end surface 431 of the base piece 430 is a flat surface that spreads in the thickness direction of the blocked portion 400. Further, the base piece 430 includes a projecting surface 432 projecting from the end surface 431.
一方、分離片420の両側には、被遮断部400の厚み方向に広がる平坦面の端面421が設けられている。さらに、分離片420は、端面421から凹んだ窪面422を備える。そして、図4(a)に示すように、分離片420と両側の基部片430はそれぞれ別体であるが、図4(b)に示すように、基部片430の端面431と分離片420の端面421とを面接触させて密着させ、電気的及び物理的に互いに接続されるように組み付けることができる。その際、分離片420の窪面422に基部片430の突出面432が嵌められているので、組付けられた分離片420と基部片430が互いにズレないようになっている。なお、分離片420と基部片430が組付けられた状態で、両側の基部片430の固定部440間の距離はL2となっている。また、分離片420は、図4に示すような形状に限定されず、両側の基部片430を電気的及び物理的に接続できるのであれば、任意の形状であってもよい。また、分離片420の窪面422に基部片430の突出面432が嵌め合わせられているが、これに限定されず、分離片420側に突出面を設け、基部片430に設けられた窪面に嵌め合わせてもよい。さらに、窪面422と突出面432の形状は、図4に示す形状に限定されず、互いに嵌め合わせることができるのであれば、任意の形状であってもよい。また、図4に示す被遮断部400は分離片420を一つ備えているが、これに限定されず、被遮断部400は、互いに分離される分離片を二つ以上備えてもよい。
On the other hand, on both sides of the separation piece 420, flat end surfaces 421 are provided that extend in the thickness direction of the blocked portion 400. Further, the separation piece 420 includes a recessed surface 422 recessed from an end surface 421. As shown in FIG. 4(a), the separation piece 420 and the base pieces 430 on both sides are separate bodies, but as shown in FIG. 4(b), the end surface 431 of the base piece 430 and the separation piece 420 The end face 421 can be brought into close contact with the end face 421 and assembled so as to be electrically and physically connected to each other. At this time, since the protruding surface 432 of the base piece 430 is fitted into the recessed surface 422 of the separation piece 420, the assembled separation piece 420 and base piece 430 are prevented from shifting from each other. Note that when the separation piece 420 and the base piece 430 are assembled, the distance between the fixing parts 440 of the base pieces 430 on both sides is L2. Moreover, the separation piece 420 is not limited to the shape shown in FIG. 4, but may have any shape as long as the base pieces 430 on both sides can be electrically and physically connected. Further, although the protruding surface 432 of the base piece 430 is fitted into the recessed surface 422 of the separation piece 420, the present invention is not limited to this. It may be fitted to Further, the shapes of the recessed surface 422 and the protruding surface 432 are not limited to the shape shown in FIG. 4, but may be any shape as long as they can be fitted together. Furthermore, although the blocked section 400 shown in FIG. 4 includes one separation piece 420, the present invention is not limited thereto, and the blocked section 400 may include two or more separation pieces that are separated from each other.
では次に、本願発明の電気回路遮断装置600の組み立て方について、図5及び図6を参照して説明する。なお、この図5は、電気回路遮断装置600の分解斜視図、図6は、図5に示す電気回路遮断装置600が組み立てられた状態でのA―A断面図である。
Next, how to assemble the electric circuit interrupting device 600 of the present invention will be explained with reference to FIGS. 5 and 6. 5 is an exploded perspective view of the electric circuit breaking device 600, and FIG. 6 is a sectional view taken along line AA in the assembled state of the electric circuit breaking device 600 shown in FIG.
電気回路遮断装置600を組み立てる際は、まず、被遮断部400の基部片430を下側ハウジング100の載置部113に載置させて、分離片420が下側ハウジング100の下側収容部110を横断するように被遮断部400を配置する。その際、被遮断部400の基部片430の両側の固定爪411を下側ハウジング100の係合内面115と係合外面116にそれぞれ当接させて、基部片430の固定部440を下側ハウジング100の載置部113に嵌合させるように固定する。
When assembling the electric circuit interrupting device 600, first, the base piece 430 of the part to be interrupted 400 is placed on the mounting part 113 of the lower housing 100, and the separating piece 420 is placed in the lower housing part 110 of the lower housing 100. The blocked portion 400 is arranged so as to cross the. At that time, the fixing claws 411 on both sides of the base piece 430 of the cut-off part 400 are brought into contact with the engaging inner surface 115 and the engaging outer surface 116 of the lower housing 100, respectively, and the fixing part 440 of the base piece 430 is attached to the lower housing. It is fixed so as to fit into the mounting portion 113 of 100.
すると、基部片430は、下側ハウジング100の載置部113にしっかりと固定された状態となる。そして、両側の基部片430の固定部440間の距離L2は、相対する載置部113間の距離L1よりわずかに広くなっているので(L2>L1)、距離(寸法)L2が広い両側の固定部440が、距離(寸法)L1が狭い両側の載置部113にきつく嵌め込まれるように固定され、基部片430の間の分離片420には、両側の基部片430によって挟まれるように押圧力Fが加わる。すると、基部片430の端面431の間には、互いに相対する方向への押圧力Fが加わり、両側の基部片430は分離片420を介して電気的に接続された状態を維持できる。特に、基部片430の端面431には押圧力Fが加わっているので、基部片430の端面431と、相対する端面(分離片420の端面421)との間の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができるのである。なお、基部片430の端面431と、相対する端面(分離片420の端面421)との間の接触抵抗を低く抑えるとは、押圧力Fによって、基部片430の端面431と相手側の端面とが、より強く密着するので、それだけ電流が流れやすくなることから、互いに接触した両側の端面間の電気的な抵抗を低く抑えるという意味である。
Then, the base piece 430 is firmly fixed to the mounting portion 113 of the lower housing 100. Since the distance L2 between the fixed parts 440 of the base pieces 430 on both sides is slightly wider than the distance L1 between the opposing mounting parts 113 (L2>L1), the distance (dimension) L2 is wider on both sides. The fixing part 440 is fixed so as to be tightly fitted into the mounting parts 113 on both sides with a narrow distance (dimension) L1, and the separating piece 420 between the base pieces 430 has a pusher so as to be sandwiched between the base pieces 430 on both sides. Pressure F is applied. Then, a pressing force F is applied between the end surfaces 431 of the base pieces 430 in directions facing each other, and the base pieces 430 on both sides can maintain an electrically connected state via the separating piece 420. In particular, since the pressing force F is applied to the end surface 431 of the base piece 430, the contact resistance between the end surface 431 of the base piece 430 and the opposing end surface (the end surface 421 of the separation piece 420) can be kept low. Furthermore, this state can be maintained for a long period of time. Note that keeping the contact resistance between the end surface 431 of the base piece 430 and the opposing end surface (the end surface 421 of the separation piece 420) low means that the end surface 431 of the base piece 430 and the opposing end surface are However, since they are in tighter contact with each other, it becomes easier for current to flow, which means that the electrical resistance between the two end surfaces that are in contact with each other is kept low.
また、基部片430の端面431、又は、分離片420の端面421、若しくは、基部片430の端面431及び分離片420の端面421には、メッキが施されてメッキ層が形成されてもよい。このメッキ層により、基部片430の端面431や分離片420の端面421の表面の微小な凹凸による隙間を埋め、周囲環境による酸化を抑制できることから、接触抵抗を低く抑えて長期にわたり維持できる。さらに、このメッキ層は、錫(Sn)などから構成されており、被遮断部400(すなわち、分離片420や基部片430)を構成する銅(Cu)などの金属よりも硬度が低くなっている。これにより、押圧力Fが加わった際に、硬度が低いメッキ層は、硬度が高い基部片430の端面431や分離片420の端面421によって強く押圧されて押し潰されることから、基部片430の端面431や分離片420の端面421の表面の微小な凹凸による隙間をより確実に埋め、接触抵抗を低く抑えることができる。また、メッキ層を、金(Au)や銀(Ag)などから構成し、被遮断部400を構成する銅(Cu)などの金属よりも硬度が低く、銅(Cu)などの金属よりも電気伝導率を高く又は同等としてもよい。
Further, the end surface 431 of the base piece 430, the end surface 421 of the separation piece 420, or the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420 may be plated to form a plating layer. This plating layer fills the gaps caused by minute irregularities on the surfaces of the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420 and suppresses oxidation caused by the surrounding environment, so that the contact resistance can be kept low and maintained for a long period of time. Furthermore, this plating layer is made of tin (Sn) or the like, and has a lower hardness than the metal such as copper (Cu) that constitutes the cut-off section 400 (i.e., the separation piece 420 and the base piece 430). There is. As a result, when the pressing force F is applied, the plating layer with low hardness is strongly pressed and crushed by the end surface 431 of the base piece 430 and the end surface 421 of the separation piece 420, which have high hardness. It is possible to more reliably fill gaps caused by minute irregularities on the surface of the end surface 431 and the end surface 421 of the separation piece 420, and to suppress contact resistance to a low level. In addition, the plating layer is made of gold (Au), silver (Ag), etc., and has lower hardness than the metal such as copper (Cu) that constitutes the cut-off section 400, and has a higher electrical resistance than the metal such as copper (Cu). The conductivity may be higher or the same.
次に、上側ハウジング200の上側収容部210内に移動体500の本体510側が挿入されるように、上側ハウジング200を下側ハウジング100の上から嵌め合わせる。すると、上側ハウジング200の挿通部213が、被遮断部400の基部片430に嵌め合わせられる。このようにして、下側ハウジング100及び上側ハウジング200から成るハウジング300は、内部に被遮断部400及び移動体500を収容した状態で組み付けられる。
Next, the upper housing 200 is fitted onto the lower housing 100 so that the main body 510 side of the movable body 500 is inserted into the upper housing part 210 of the upper housing 200. Then, the insertion portion 213 of the upper housing 200 is fitted into the base piece 430 of the blocked portion 400. In this way, the housing 300 consisting of the lower housing 100 and the upper housing 200 is assembled with the blocked part 400 and the movable body 500 accommodated therein.
さらに、上側ハウジング200の動力源収納部221には動力源Pが取り付けられており、動力源Pの一部は移動体500の窪み部511に収容される。この動力源Pは、電気回路の異常を検知した際に外部から異常信号が入力されると、例えば、動力源Pの内部の火薬を爆発させて、その爆発による空気圧によって、移動体500を収容部310内で瞬時に押し出して移動させるものである。なお、動力源Pは、移動体500を移動させる動力を発生させるものであれば、火薬を用いた動力源に限られず、その他の既知の動力源を用いても良い。
Further, a power source P is attached to the power source storage section 221 of the upper housing 200, and a portion of the power source P is accommodated in the recess 511 of the moving body 500. When an abnormality signal is input from the outside when an abnormality is detected in the electric circuit, the power source P explodes the gunpowder inside the power source P, and uses the air pressure caused by the explosion to house the mobile object 500. It is instantaneously pushed out and moved within the section 310. Note that the power source P is not limited to a power source using gunpowder, and may be any other known power source as long as it generates power to move the mobile body 500.
そして、図6に示すように、移動体500は、直線状に並んだ下側収容部110及び上側収容部210から構成される収容部310内部に、収容されている。この収容部310は、ハウジング300の第一端部320から、第一端部320の反対側の第二端部330まで延びている。そして、移動体500は、動力源Pが配置された第一端部320側に配置されているので、収容部310の第二端部330側は空洞になっている。そのため後述するように、移動体500は、分離片420を切断しながら、第二端部330側へと移動できるのである。また、移動体500の上端側の窪み部511は動力源Pに隣接しているので、後述するように動力源P内の火薬の爆発による空気圧は、移動体500の上端側へと伝達される。
As shown in FIG. 6, the movable body 500 is housed inside a housing section 310 that includes a lower housing section 110 and an upper housing section 210 that are arranged in a straight line. The housing portion 310 extends from a first end 320 of the housing 300 to a second end 330 opposite the first end 320 . Since the movable body 500 is disposed on the first end 320 side where the power source P is disposed, the second end 330 side of the accommodating portion 310 is hollow. Therefore, as will be described later, the movable body 500 can move toward the second end 330 while cutting the separation piece 420. Furthermore, since the recess 511 on the upper end side of the moving body 500 is adjacent to the power source P, the air pressure caused by the explosion of gunpowder in the power source P is transmitted to the upper end side of the moving body 500, as will be described later. .
なお、図6に示すように、組み立てられて完成した電気回路遮断装置600は、保護したい電気回路内に取り付けられて利用される。具体的には、電気回路の一部に被遮断部400の基部片430を接続して、被遮断部400を電気回路の一部を構成するようにする。通常時においては、被遮断部400の基部片430と分離片420は切断されておらず、物理的にも電気的に接続されているので、電流が被遮断部400の基部片430と分離片420を介して電気回路中を流れるようになっている。
Note that, as shown in FIG. 6, the assembled and completed electric circuit breaker device 600 is used by being attached to an electric circuit to be protected. Specifically, the base piece 430 of the cut-off section 400 is connected to a part of the electric circuit, so that the cut-off section 400 constitutes a part of the electric circuit. In normal times, the base piece 430 of the section to be interrupted 400 and the separation piece 420 are not disconnected and are physically and electrically connected, so that the current flows between the base piece 430 of the section to be interrupted 400 and the separation piece. 420 in an electrical circuit.
では次に、図7を参照して、電気回路に過電流が流れる等の異常が検知された場合に、電気回路遮断装置600が電気回路を遮断する様子について説明する。なお、図7は、図6に示す状態から移動体500が移動した様子を示す断面図である。
Next, with reference to FIG. 7, a description will be given of how the electrical circuit interrupting device 600 interrupts the electrical circuit when an abnormality such as an overcurrent flowing through the electrical circuit is detected. Note that FIG. 7 is a cross-sectional view showing how the moving body 500 has moved from the state shown in FIG.
まず、図7に示すように、電気回路に過電流が流れる等の異常が検知された場合には、異常信号が動力源Pに入力され、動力源P内の火薬が爆発する。すると、その爆発による空気圧が移動体500の上端側の窪み部511に伝わる。この空気圧によって、移動体500は第一端部320から第二端部330に向けて勢いよく吹き飛ばされ、収容部310内を第二端部330に向けて瞬時に移動する。
First, as shown in FIG. 7, when an abnormality such as overcurrent flowing in the electric circuit is detected, an abnormality signal is input to the power source P, and the explosive in the power source P explodes. Then, the air pressure caused by the explosion is transmitted to the recess 511 on the upper end side of the moving body 500. Due to this air pressure, the movable body 500 is vigorously blown away from the first end 320 toward the second end 330 and instantaneously moves within the housing portion 310 toward the second end 330 .
すると、移動体500の突出部530が分離片420を第二端部330側へ強く押し出し、分離片420は基部片430から分離されて、両側の基部片430は電気的に切断された状態となる。つまり、被遮断部400の両側の基部片430が分離片420を介して通電した状態が遮断されて、電気回路に過電流が流れるのを防止できるのである。なお、移動体500の突出部530が分離片420を第二端部330側へ強く押し出す力が、両側の基部片430が分離片420を挟み込んで挟持する押圧力Fよりも大きいので、移動体500は分離片420を基部片430から分離することができる。また、移動体500が分離片420を第二端部330側へ押し出す力の方向と、両側の基部片430が分離片420を挟み込んで挟持する押圧力Fの方向は、交差しているので、移動体500の動力が効率的に分離片420に伝達され、移動体500は分離片420を基部片430から容易に分離することができる。特に、移動体500が分離片420を第二端部330側へ押し出す力の方向と、両側の基部片430が分離片420を挟み込んで挟持する押圧力Fの方向が、直交している場合は、移動体500の動力が更に効率的に分離片420に伝達され、移動体500は分離片420を基部片430から更に容易に分離することができる。
Then, the protrusion 530 of the movable body 500 strongly pushes the separation piece 420 toward the second end 330, the separation piece 420 is separated from the base piece 430, and the base pieces 430 on both sides are in an electrically disconnected state. Become. In other words, the state in which the base pieces 430 on both sides of the part to be cut off 400 are energized via the separation piece 420 is cut off, and it is possible to prevent overcurrent from flowing in the electric circuit. Note that the force of the protruding portion 530 of the movable body 500 that strongly pushes the separation piece 420 toward the second end portion 330 is greater than the pressing force F caused by the base pieces 430 on both sides sandwiching and holding the separation piece 420, so that the movable body 500 can separate the separation piece 420 from the base piece 430. Furthermore, since the direction of the force of the movable body 500 pushing out the separation piece 420 toward the second end 330 side and the direction of the pressing force F caused by the base pieces 430 on both sides sandwiching and holding the separation piece 420 intersect, The motive power of the movable body 500 is efficiently transmitted to the separation piece 420, and the movable body 500 can easily separate the separation piece 420 from the base piece 430. In particular, when the direction of the force of the movable body 500 pushing out the separation piece 420 toward the second end 330 side is orthogonal to the direction of the pressing force F that causes the base pieces 430 on both sides to sandwich and hold the separation piece 420. , the power of the movable body 500 is more efficiently transmitted to the separation piece 420, and the movable body 500 can more easily separate the separation piece 420 from the base piece 430.
また、被遮断部400の厚み(板厚)は、従来技術の被遮断部の厚みと同様に厚くすることができ、被遮断部400を低抵抗化して電力損失を抑えている。そして、本願発明の電気回路遮断装置600では、別体である基部片430同士を互いに相対する方向への押圧力Fで突き合わせて電気的に接続された状態を維持している。さらに、電気回路を遮断する際は、従来のように一体形成された被遮断部を大きな力で物理的に切断するのではなく、元々別体であった基部片430の端面431間の接続状態を分離すればよい。そのため、被遮断部400の低抵抗化を行う場合であっても、従来よりも少ない動力で、電気回路を容易に遮断でき、電気回路遮断装置の大型化や製造コストを抑えることができる。
Further, the thickness (plate thickness) of the cut-off section 400 can be made thick like the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400 is reduced to suppress power loss. In the electric circuit breaking device 600 of the present invention, the separate base pieces 430 are butted against each other with a pressing force F in opposing directions to maintain the electrically connected state. Furthermore, when interrupting an electric circuit, instead of physically cutting the integrally formed part to be cut off with great force as in the past, the connection between the end surfaces 431 of the base piece 430, which were originally separate parts, is Just separate it. Therefore, even when lowering the resistance of the section to be interrupted 400, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device.
なお、図5及び図6に示す実施形態1に係る電気回路遮断装置600では、基部片430の端面431の間に、互いに相対する方向への押圧力Fを加えて、基部片430同士を電気的に接続させる押圧手段が、爪状の固定部400の態様であるが、これに限定されず、押圧手段は、基部片430の端面431の間に、互いに相対する方向への押圧力Fを加えて基部片430同士を電気的に接続させることができるのであれば、任意の構成であってもよい。
In the electric circuit breaking device 600 according to the first embodiment shown in FIGS. 5 and 6, a pressing force F is applied between the end surfaces 431 of the base pieces 430 in directions facing each other to electrically connect the base pieces 430 to each other. The pressing means for connecting the base piece 430 is in the form of a claw-shaped fixing part 400, but is not limited thereto. In addition, any configuration may be used as long as the base pieces 430 can be electrically connected to each other.
<実施形態2>
では次に、実施形態2に係る本願発明の電気回路遮断装置600Aについて、図8及び図9を参照して説明する。なお、図8は、実施形態2に係る電気回路遮断装置600Aの被遮断部400Aと下側ハウジング100Aの斜視図、図9(a)は、被遮断部400Aと下側ハウジング100Aの側面図、図9(b)は、被遮断部400Aを下側ハウジング100Aに固定した状態の側面図である。なお、実施形態2に係る電気回路遮断装置600Aの構成は、被遮断部400Aを下側ハウジング100Aに固定する構成が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 2>
Next, an electric circuit interrupting device 600A of the present invention according to Embodiment 2 will be described with reference to FIGS. 8 and 9. In addition, FIG. 8 is a perspective view of a to-be-interrupted part 400A and a lower housing 100A of an electric circuit breaker 600A according to the second embodiment, and FIG. 9(a) is a side view of the to-be-interrupted part 400A and a lower housing 100A. FIG. 9(b) is a side view of the blocked portion 400A fixed to the lower housing 100A. Note that the configuration of the electric circuit breaker 600A according to the second embodiment is different from the configuration of the electric circuit breaker 600 according to the first embodiment in the configuration in which the section to be interrupted 400A is fixed to the lower housing 100A, but other configurations are different. is basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, so the description of the same configuration will be omitted.
では次に、実施形態2に係る本願発明の電気回路遮断装置600Aについて、図8及び図9を参照して説明する。なお、図8は、実施形態2に係る電気回路遮断装置600Aの被遮断部400Aと下側ハウジング100Aの斜視図、図9(a)は、被遮断部400Aと下側ハウジング100Aの側面図、図9(b)は、被遮断部400Aを下側ハウジング100Aに固定した状態の側面図である。なお、実施形態2に係る電気回路遮断装置600Aの構成は、被遮断部400Aを下側ハウジング100Aに固定する構成が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 2>
Next, an electric circuit interrupting device 600A of the present invention according to Embodiment 2 will be described with reference to FIGS. 8 and 9. In addition, FIG. 8 is a perspective view of a to-
図8、及び図9に示すように、下側ハウジング100の上面120の一部には、被遮断部400Aの基部片430Aを載置できるように、基部片430Aの形状に合わせて窪んだ載置部113Aを備える。この載置部113Aは、下側収容部110Aの両側に相対する様に配置されており、載置部113Aは、直線状に延びる被遮断部400Aを両側で支えることになる。また、載置部113Aには、基部片430Aの棒状の固定部440Aを挿入できるように、固定孔117Aが形成されている。そして、相対する固定孔117A間の距離は、L1Aとなっている。
As shown in FIGS. 8 and 9, a part of the upper surface 120 of the lower housing 100 is provided with a recess that matches the shape of the base piece 430A so that the base piece 430A of the blocked part 400A can be placed thereon. It is provided with a placing part 113A. The placing portion 113A is arranged to face both sides of the lower housing portion 110A, and the placing portion 113A supports the linearly extending portion 400A to be blocked on both sides. Furthermore, a fixing hole 117A is formed in the mounting portion 113A so that a rod-shaped fixing portion 440A of the base piece 430A can be inserted therein. The distance between the opposing fixing holes 117A is L1A.
また、被遮断部400Aは、電気回路と電気的に接続するために全体が銅などの金属製の導電体となっており、両端に電気回路と接続するための基部片430Aと、基部片430Aの間に位置する分離片420Aとを備える。また、基部片430Aは、下側ハウジング100Aの載置部113Aに固定するための固定部440Aを備える。この固定部440Aは棒状に形成されており、固定部440Aの先端443Aは、載置部113Aの固定孔117Aに挿入して固定出来るようになっている。なお、分離片420Aと両側の基部片430Aはそれぞれ別体であるが、基部片430Aの端面431Aと分離片420Aの端面421Aとを密着させ、電気的及び物理的に互いに接続されるように組み付けることができる。そして、分離片420Aと基部片430Aが組付けられた状態で、両側の基部片430Aの固定部440A間の距離は、L2Aとなっている。
Further, the cut-off portion 400A is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430A for connecting to the electric circuit at both ends, and a base piece 430A for connecting to the electric circuit. 420A of separation pieces located between. Furthermore, the base piece 430A includes a fixing part 440A for fixing to the mounting part 113A of the lower housing 100A. This fixing part 440A is formed into a rod shape, and the tip 443A of the fixing part 440A can be inserted into the fixing hole 117A of the mounting part 113A and fixed. Although the separation piece 420A and the base pieces 430A on both sides are separate bodies, they are assembled so that the end face 431A of the base piece 430A and the end face 421A of the separation piece 420A are brought into close contact with each other and electrically and physically connected to each other. be able to. In a state where the separation piece 420A and the base piece 430A are assembled, the distance between the fixing parts 440A of the base pieces 430A on both sides is L2A.
図9(b)に示すように、被遮断部400Aの固定部440Aの先端443Aを、下側ハウジング100Aの載置部113Aの固定孔117Aに挿入すると、被遮断部400Aは、下側ハウジング100Aの載置部113Aにしっかりと固定された状態となる。両側の基部片430Aの固定部440A間の距離L2Aは、相対する固定孔117A間の距離L1Aよりわずかに広くなっているので(L2A>L1A)、距離(寸法)L2Aが広い両側の固定部440Aが、距離(寸法)L1Aが狭い両側の固定孔117Aにきつく挿入されるように固定され、分離片420Aには、両側の基部片430Aによって挟まれるように押圧力FAが加わる。すると、基部片430Aの端面431Aには、互いに相対する方向への押圧力FAが加わり、両側の基部片430Aは分離片420Aを介して電気的に接続された状態を維持できる。特に、基部片430Aの端面431Aには押圧力FAが加わっているので、基部片430Aの端面431Aと、相対する端面(分離片420Aの端面421A)との間の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができるのである。このように、実施形態2に係る本願発明の電気回路遮断装置600Aでは、基部片430Aの端面431Aの間に、互いに相対する方向への押圧力FAを加えて、基部片430A同士を電気的に接続させる押圧手段が、棒状の固定部400Aの態様となっている。
As shown in FIG. 9(b), when the tip 443A of the fixing part 440A of the cut-off part 400A is inserted into the fixing hole 117A of the mounting part 113A of the lower housing 100A, the cut-off part 400A It is firmly fixed to the mounting portion 113A. Since the distance L2A between the fixing parts 440A of the base pieces 430A on both sides is slightly wider than the distance L1A between the opposing fixing holes 117A (L2A>L1A), the fixing parts 440A on both sides have a wider distance (dimension) L2A. is fixed so as to be tightly inserted into the fixed holes 117A on both sides with a narrow distance (dimension) L1A, and a pressing force FA is applied to the separation piece 420A so as to be sandwiched between the base pieces 430A on both sides. Then, a pressing force FA is applied to the end surfaces 431A of the base pieces 430A in directions facing each other, and the base pieces 430A on both sides can maintain an electrically connected state via the separation piece 420A. In particular, since the pressing force FA is applied to the end surface 431A of the base piece 430A, the contact resistance between the end surface 431A of the base piece 430A and the opposing end surface (the end surface 421A of the separation piece 420A) can be kept low. Furthermore, this state can be maintained for a long period of time. As described above, in the electric circuit breaking device 600A of the present invention according to the second embodiment, the pressing force FA in the direction facing each other is applied between the end surfaces 431A of the base pieces 430A to electrically connect the base pieces 430A to each other. The pressing means for connection is in the form of a rod-shaped fixing portion 400A.
また、実施形態2に係る本願発明の電気回路遮断装置600Aにおいて、分離片420Aを分離して電気回路を遮断する構成は、図6及び図7で説明した、実施形態1に係る電気回路遮断装置600と同じである。そして、被遮断部400Aの厚みは、従来技術の被遮断部の厚みと同様に厚くすることができ、被遮断部400Aを低抵抗化して電力損失を抑えている。そして、実施形態2に係る本願発明の電気回路遮断装置600Aでは、別体である基部片430A同士を互いに相対する方向への押圧力FAで突き合わせて電気的に接続された状態を維持している。さらに、電気回路を遮断する際は、従来のように一体形成された被遮断部を物理的に切断するのではなく、元々別体であった基部片430A同士の端面431A間の接続状態を分離すればよい。そのため、被遮断部400Aの低抵抗化を行う場合であっても、従来よりも少ない動力で、電気回路を容易に遮断でき、電気回路遮断装置の大型化や製造コストを抑えることができる。
Further, in the electric circuit breaking device 600A of the present invention according to the second embodiment, the configuration for separating the separation piece 420A and breaking the electric circuit is the same as that of the electric circuit breaking device according to the first embodiment described in FIGS. 6 and 7. Same as 600. The thickness of the cut-off section 400A can be increased similarly to the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400A is reduced to suppress power loss. In the electric circuit breaking device 600A of the present invention according to Embodiment 2, the separate base pieces 430A are butted against each other with a pressing force FA in opposing directions to maintain the electrically connected state. . Furthermore, when interrupting an electric circuit, instead of physically cutting the integrally formed part to be interrupted as in the past, the connection state between the end surfaces 431A of the base pieces 430A, which were originally separate pieces, is separated. do it. Therefore, even when reducing the resistance of the section to be interrupted 400A, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device.
<実施形態3>
では次に、実施形態3に係る本願発明の電気回路遮断装置600Bについて、図10及び図11を参照して説明する。なお、図10は、実施形態3に係る電気回路遮断装置600Bの被遮断部400Bと下側ハウジング100Bの斜視図、図11は、被遮断部400Bを下側ハウジング100Bに固定した状態の平面図である。なお、実施形態3に係る電気回路遮断装置600Bの構成は、被遮断部400Bを下側ハウジング100Bに固定する構成及び引張ばね450Bを備えた点が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 3>
Next, an electric circuit breaking device 600B of the present invention according to Embodiment 3 will be described with reference to FIGS. 10 and 11. In addition, FIG. 10 is a perspective view of the cut-offpart 400B and the lower housing 100B of the electric circuit breaking device 600B according to the third embodiment, and FIG. 11 is a plan view of the cut-off part 400B fixed to the lower housing 100B. It is. The configuration of the electric circuit interrupting device 600B according to the third embodiment is different from the electric circuit interrupting device 600 according to the first embodiment in that the disconnected portion 400B is fixed to the lower housing 100B and the tension spring 450B is provided. Although the configuration is different, the other configurations are basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, so the description of the same configurations will be omitted.
では次に、実施形態3に係る本願発明の電気回路遮断装置600Bについて、図10及び図11を参照して説明する。なお、図10は、実施形態3に係る電気回路遮断装置600Bの被遮断部400Bと下側ハウジング100Bの斜視図、図11は、被遮断部400Bを下側ハウジング100Bに固定した状態の平面図である。なお、実施形態3に係る電気回路遮断装置600Bの構成は、被遮断部400Bを下側ハウジング100Bに固定する構成及び引張ばね450Bを備えた点が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 3>
Next, an electric circuit breaking device 600B of the present invention according to Embodiment 3 will be described with reference to FIGS. 10 and 11. In addition, FIG. 10 is a perspective view of the cut-off
図10及び図11に示すように、下側ハウジング100Aの上面120Aの一部には、被遮断部400Bの基部片430Bを載置できるように、基部片430Bの形状に合わせて窪んだ載置部113Bを備える。この載置部113Bは、下側収容部110Bの両側に相対する様に配置されており、載置部113Bは、直線状に延びる被遮断部400Bを両側で支えることになる。また、載置部113Bには、凸状の固定爪118Bが形成されている。
As shown in FIGS. 10 and 11, a part of the upper surface 120A of the lower housing 100A is recessed to match the shape of the base piece 430B so that the base piece 430B of the blocked part 400B can be placed thereon. 113B. This placing part 113B is arranged so as to face both sides of the lower housing part 110B, and the placing part 113B supports the linearly extending part to be blocked 400B on both sides. Further, a convex fixing claw 118B is formed on the mounting portion 113B.
被遮断部400Bは、電気回路と電気的に接続するために全体が銅などの金属製の導電体となっており、両端に電気回路と接続するための基部片430Bと、基部片430Bの間に位置する分離片420Bとを備える。また、基部片430Bの両端には、引張ばね450Bの端部を引っ掛けて固定できる取付部435Bが設けられている。引張ばね450Bの両側の端部(451B、452B)には絶縁処理が施されている。また、基部片430Bの取付部435Bに絶縁処理を施してもよい。
The part to be interrupted 400B is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has a base piece 430B at both ends for connection to the electric circuit, and a portion between the base piece 430B. and a separation piece 420B located at . Furthermore, mounting portions 435B are provided at both ends of the base piece 430B, on which the ends of the tension spring 450B can be hooked and fixed. Insulation treatment is applied to both ends (451B, 452B) of the tension spring 450B. Further, the mounting portion 435B of the base piece 430B may be subjected to insulation treatment.
また、基部片430Bは、下側ハウジング100Bの載置部113Bに固定するための固定部440Bを備える。この固定部440Bは切欠状に形成されており、固定部440Bは載置部113Bの固定爪118Bと係合して固定できるようになっている。そのため、分離片420Bが分離した後に、基部片430Bが引張ばね450Bに引っ張られて移動することを防止できる。
Furthermore, the base piece 430B includes a fixing part 440B for fixing to the mounting part 113B of the lower housing 100B. This fixing part 440B is formed in a notch shape, and can be fixed by engaging with the fixing claw 118B of the mounting part 113B. Therefore, after the separation piece 420B is separated, the base piece 430B can be prevented from being pulled and moved by the tension spring 450B.
そして、図10及び図11に示すように、分離片420Bと両側の基部片430Bはそれぞれ別体であるが、基部片430Bの端面431Bと分離片420Bの端面421Bとを密着させ、電気的及び物理的に互いに接続されるように組み付けることができる。その際、引張ばね450Bの一方の端部451Bが一方の基部片430Bの取付部435Bに取り付けられ、引張ばね450Bの他方の端部452Bが他方の基部片430Bの取付部435Bに取り付けられている。そのため、引張ばね450Bの引張力によって、基部片430Bの間の分離片420Bには、両側の基部片430Bによって挟まれるように押圧力FBが加わる。すると、基部片430Bの端面431Bには、互いに相対する方向への押圧力FBが加わり、両側の基部片430Bは分離片420Bを介して電気的に接続された状態を維持できる。特に、基部片430Bの端面431Bには押圧力FBが加わっているので、基部片430Bの端面431Bと、相対する端面(分離片420Bの端面421B)との間の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができるのである。このように、実施形態3に係る本願発明の電気回路遮断装置600Bでは、基部片430Bの端面431Bの間に、互いに相対する方向への押圧力FBを加えて、基部片430B同士を電気的に接続させる押圧手段が、引張ばね450Bの態様となっている。また、引張ばね450Bの引張力を変更することで、押圧力FBの大きさを適宜変更することができる。
As shown in FIGS. 10 and 11, although the separation piece 420B and the base pieces 430B on both sides are separate bodies, the end surface 431B of the base piece 430B and the end surface 421B of the separation piece 420B are brought into close contact with each other to provide electrical and They can be assembled so that they are physically connected to each other. At this time, one end 451B of the tension spring 450B is attached to the attachment part 435B of one base piece 430B, and the other end 452B of the tension spring 450B is attached to the attachment part 435B of the other base piece 430B. . Therefore, due to the tensile force of the tension spring 450B, a pressing force FB is applied to the separating piece 420B between the base pieces 430B so that it is sandwiched between the base pieces 430B on both sides. Then, a pressing force FB in directions facing each other is applied to the end surfaces 431B of the base pieces 430B, and the base pieces 430B on both sides can maintain an electrically connected state via the separating pieces 420B. In particular, since the pressing force FB is applied to the end surface 431B of the base piece 430B, the contact resistance between the end surface 431B of the base piece 430B and the opposing end surface (the end surface 421B of the separation piece 420B) can be kept low. Furthermore, this state can be maintained for a long period of time. As described above, in the electric circuit breaking device 600B of the present invention according to the third embodiment, the pressing force FB in the direction facing each other is applied between the end surfaces 431B of the base pieces 430B to electrically connect the base pieces 430B to each other. The pressing means to be connected is in the form of a tension spring 450B. Further, by changing the tensile force of the tension spring 450B, the magnitude of the pressing force FB can be changed as appropriate.
また、実施形態3に係る本願発明の電気回路遮断装置600Bにおいて、分離片420Bを分離して電気回路を遮断する構成は、図6及び図7で説明した、実施形態1に係る本願発明の電気回路遮断装置600と同じである。そして、被遮断部400Bの厚みは、従来技術の被遮断部の厚みと同様に厚くすることができ、被遮断部400Bを低抵抗化して電力損失を抑えている。そして、実施形態3に係る本願発明の電気回路遮断装置600Bでは、別体である基部片430B同士を互いに相対する方向への押圧力FBで突き合わせて電気的に接続された状態を維持している。さらに、電気回路を遮断する際は、従来のように一体形成された被遮断部を物理的に切断するのではなく、元々別体であった基部片430B同士の端面431Bの接続状態を分離すればよい。そのため、被遮断部400Bの低抵抗化を行う場合であっても、従来よりも少ない動力で、電気回路を容易に遮断でき、電気回路遮断装置の大型化や価格を抑えることができる。
In addition, in the electric circuit breaking device 600B of the present invention according to Embodiment 3, the configuration for separating the separation piece 420B to interrupt the electric circuit is different from the electric circuit breaking device 600B of the present invention according to Embodiment 1, which is explained in FIGS. 6 and 7. It is the same as circuit breaker device 600. The thickness of the cut-off section 400B can be increased similarly to the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400B is reduced to suppress power loss. In the electric circuit breaking device 600B of the present invention according to Embodiment 3, the separate base pieces 430B are butted against each other with a pressing force FB in opposing directions to maintain the electrically connected state. . Furthermore, when interrupting the electric circuit, instead of physically cutting the integrally formed part to be interrupted as in the past, the connection state of the end surfaces 431B of the base pieces 430B, which were originally separate pieces, is separated. Bye. Therefore, even when reducing the resistance of the section to be interrupted 400B, the electric circuit can be easily interrupted with less power than before, and the size and cost of the electric circuit interrupting device can be suppressed.
<実施形態4>
では次に、実施形態4に係る本願発明の電気回路遮断装置600Cについて、図12及び図13を参照して説明する。なお、図12(a)は、実施形態4に係る電気回路遮断装置600Cの被遮断部400Cの斜視図、図12(b)は、実施形態4に係る電気回路遮断装置600Cの被遮断部400Cの平面図、図13は、被遮断部400Cと下側ハウジング100Cと移動体500Cを示した分解斜視図、図14は、図6に示したのと同様に、電気回路遮断装置600Cを示した断面図、図15は、図14に示す状態から、移動体500Cが移動した状態の断面図である。なお、実施形態4に係る電気回路遮断装置600Cの構成は、移動体500Cと被遮断部400Cの構成が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 4>
Next, an electriccircuit breaking device 600C of the present invention according to Embodiment 4 will be described with reference to FIGS. 12 and 13. Note that FIG. 12(a) is a perspective view of a cut-off portion 400C of an electric circuit breaking device 600C according to the fourth embodiment, and FIG. 12(b) is a perspective view of a cut-off portion 400C of the electric circuit breaking device 600C according to the fourth embodiment. FIG. 13 is an exploded perspective view showing the cut-off part 400C, the lower housing 100C, and the movable body 500C, and FIG. 14 shows the electric circuit interrupting device 600C in the same way as shown in FIG. The cross-sectional view of FIG. 15 is a cross-sectional view of a state in which the movable body 500C has moved from the state shown in FIG. 14. Note that the configuration of the electric circuit interrupting device 600C according to the fourth embodiment is different from the configuration of the electric circuit interrupting device 600 according to the first embodiment in the configurations of the moving body 500C and the section to be interrupted 400C, but the other configurations are the same as those in the embodiment. Since the configuration is basically the same as the configuration of the electric circuit interrupting device 600 according to the first embodiment, a description of the same configuration will be omitted.
では次に、実施形態4に係る本願発明の電気回路遮断装置600Cについて、図12及び図13を参照して説明する。なお、図12(a)は、実施形態4に係る電気回路遮断装置600Cの被遮断部400Cの斜視図、図12(b)は、実施形態4に係る電気回路遮断装置600Cの被遮断部400Cの平面図、図13は、被遮断部400Cと下側ハウジング100Cと移動体500Cを示した分解斜視図、図14は、図6に示したのと同様に、電気回路遮断装置600Cを示した断面図、図15は、図14に示す状態から、移動体500Cが移動した状態の断面図である。なお、実施形態4に係る電気回路遮断装置600Cの構成は、移動体500Cと被遮断部400Cの構成が、実施形態1に係る電気回路遮断装置600の構成と異なるが、その他の構成は、実施形態1に係る電気回路遮断装置600の構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 4>
Next, an electric
図12に示すように、被遮断部400Cは、電気回路と電気的に接続するために全体が銅などの金属製の導電体となっており、両端に電気回路と接続するための基部片430Cを備える。被遮断部400Cは、図4に示す実施形態1の被遮断部400と同様に、下側ハウジング100Cの載置部113Cに固定するための固定部440Cを備える。ただ、被遮断部400Cは、図4に示す実施形態1の被遮断部400のように分離片420を備えず、基部片430Cの端面431C同士が、分離片420を介さずに直接組付けられる。具体的には、基部片430Cの先端側は、後述する移動体500Cに押圧されて屈曲可能な折曲部437Cとなっており、折曲部437Cが屈曲しやすいように、基部片430Cには幅方向へ横断する切込線438Cが設けられている。また、基部片430Cの端面431Cは、被遮断部400Cの厚み方向に広がる平坦面となっている。さらに、基部片430Cは、端面431Cから突出する突出面432Cと、端面431Cから凹んだ窪面433Cを備える。
As shown in FIG. 12, the cut-off portion 400C is entirely made of a conductor made of metal such as copper in order to be electrically connected to an electric circuit, and has base pieces 430C at both ends for connection to the electric circuit. Equipped with Similar to the blocked part 400 of the first embodiment shown in FIG. 4, the blocked part 400C includes a fixing part 440C for fixing to the mounting part 113C of the lower housing 100C. However, the cut-off section 400C does not include the separation piece 420 like the cut-off section 400 of Embodiment 1 shown in FIG. . Specifically, the distal end side of the base piece 430C is a bending part 437C that can be bent by being pressed by a moving body 500C, which will be described later. A score line 438C that crosses in the width direction is provided. Further, an end surface 431C of the base piece 430C is a flat surface that extends in the thickness direction of the blocked portion 400C. Furthermore, the base piece 430C includes a protruding surface 432C protruding from the end surface 431C and a recessed surface 433C recessed from the end surface 431C.
そして、図12(b)に示すように、両側の基部片430Cはそれぞれ別体であるが、基部片430Cの端面431Cを互いに密着させ、電気的及び物理的に互いに接続されるように組み付けることができる。その際、一方の基部片430Cの突出面432Cが他方の基部片430Cの窪面433Cに嵌められているので、組付けられた基部片430Cが互いにズレないようになっている。なお、両側の基部片430Cが組付けられた状態で、両側の基部片430Cの固定部440C間の距離はL2Cとなっている。なお、基部片430Cは、突出面432Cと窪面433Cの両方を備えているが、これに限定されず、突出面432C又は窪面433Cの一方のみを備えてもよい。
As shown in FIG. 12(b), although the base pieces 430C on both sides are separate pieces, they are assembled so that the end surfaces 431C of the base pieces 430C are brought into close contact with each other and electrically and physically connected to each other. I can do it. At this time, since the protruding surface 432C of one base piece 430C is fitted into the recessed surface 433C of the other base piece 430C, the assembled base pieces 430C are prevented from shifting from each other. In addition, when the base pieces 430C on both sides are assembled, the distance between the fixing parts 440C of the base pieces 430C on both sides is L2C. Although the base piece 430C includes both a protruding surface 432C and a recessed surface 433C, the present invention is not limited to this, and may include only one of the protruding surface 432C or the recessed surface 433C.
また、図13に示すように、被遮断部400Cを下側ハウジング100Cに取り付ける際は、被遮断部400Cの基部片430Cを下側ハウジング100Cの載置部113Cに載置させて、基部片430Cの折曲部437Cが下側ハウジング100の下側収容部110を横断するように被遮断部400Cを配置する。また、下側ハウジング100Cは実施形態1の下側ハウジング100と同じ構成となっている。そして、実施形態1の下側ハウジング100と被遮断部400との固定方法と同様に、図13に示すように、基部片430Cの固定部440Cは、下側ハウジング100Cの載置部113Cに嵌合するように固定される。
Moreover, as shown in FIG. 13, when attaching the cut-off part 400C to the lower housing 100C, the base piece 430C of the cut-off part 400C is placed on the mounting part 113C of the lower housing 100C, and the base piece 430C The blocked portion 400C is arranged such that the bent portion 437C crosses the lower accommodation portion 110 of the lower housing 100. Further, the lower housing 100C has the same configuration as the lower housing 100 of the first embodiment. Similarly to the method of fixing the lower housing 100 and the blocked part 400 in Embodiment 1, as shown in FIG. fixed to match.
すると、図14に示すように、基部片430Cは、下側ハウジング100Cの載置部113Cにしっかりと固定された状態となる。そして、両側の基部片430Cの固定部440C間の距離L2Cは、相対する載置部113C間の距離L1Cよりわずかに広くなっているので(L2C>L1C)、距離(寸法)L2Cが広い両側の固定部440Cが、距離(寸法)L1Cが狭い両側の載置部113Cにきつく嵌め込まれるように固定され、基部片430Cの端面431Cには、互いに相対する方向への押圧力FCが加わり、両側の基部片430Cは電気的に接続された状態を維持できる。特に、基部片430Cの端面431Cには押圧力FCが加わっているので、基部片430Cの端面431C同士の接触抵抗を低く抑えることができ、さらに、その状態を長期にわたり維持することができるのである。
Then, as shown in FIG. 14, the base piece 430C is firmly fixed to the mounting portion 113C of the lower housing 100C. Since the distance L2C between the fixing parts 440C of the base pieces 430C on both sides is slightly wider than the distance L1C between the opposing mounting parts 113C (L2C>L1C), the distance (dimension) L2C is wider on both sides. The fixing portion 440C is fixed so as to be tightly fitted into the mounting portions 113C on both sides with a narrow distance (dimension) L1C, and a pressing force FC is applied to the end surface 431C of the base piece 430C in the direction opposite to each other. The base piece 430C can remain electrically connected. In particular, since the pressing force FC is applied to the end surfaces 431C of the base pieces 430C, the contact resistance between the end surfaces 431C of the base pieces 430C can be kept low, and furthermore, this state can be maintained for a long period of time. .
次に、図15に示すように、電気回路に過電流が流れる等の異常が検知された場合には、異常信号が動力源PCに入力され、動力源PC内の火薬が爆発する。移動体500Cは第一端部320Cから第二端部330Cに向けて勢いよく吹き飛ばされ、収容部310C内を第二端部330Cに向けて瞬時に移動する。なお、移動体500Cの突出部530Cは、先端が尖っており、基部片430Cの端面431C同士が接触している箇所の真上に位置している。
Next, as shown in FIG. 15, if an abnormality such as an overcurrent flowing through the electric circuit is detected, an abnormality signal is input to the power source PC, and the gunpowder in the power source PC explodes. The movable body 500C is blown away from the first end 320C toward the second end 330C, and instantly moves inside the housing section 310C toward the second end 330C. Note that the protruding portion 530C of the movable body 500C has a sharp tip and is located directly above the point where the end surfaces 431C of the base piece 430C are in contact with each other.
すると、移動体500Cの突出部530Cが、基部片430Cの端面431C同士の境界付近を第二端部330C側へ強く押し出す。すると、両側の基部片430Cの折曲部437Cは、移動体500Cの突出部530Cによって第二端部330側へ折り曲げられ、互いに離間することで、両側の基部片430Cは電気的に切断された状態となる。つまり、被遮断部400Cの両側の基部片430Cが互いに接触して通電した状態が遮断されて、電気回路に過電流が流れるのを防止できるのである。なお、移動体500Cの突出部530Cが基部片430Cの折曲部437Cを第二端部330C側へ折り曲げる力が、押圧力FCよりも大きいので、移動体500Cは基部片430Cの折曲部437Cを第二端部330C側へ折り曲げて、両側の折曲部437Cを互いに分離することができる。
Then, the protrusion 530C of the movable body 500C strongly pushes out the vicinity of the boundary between the end surfaces 431C of the base piece 430C toward the second end 330C. Then, the bent portions 437C of the base pieces 430C on both sides are bent toward the second end 330 by the protrusion 530C of the movable body 500C, and are separated from each other, so that the base pieces 430C on both sides are electrically disconnected. state. In other words, the base pieces 430C on both sides of the cut-off section 400C contact each other and the energized state is cut off, making it possible to prevent overcurrent from flowing in the electric circuit. Note that the force with which the protrusion 530C of the movable body 500C bends the bent portion 437C of the base piece 430C toward the second end 330C is greater than the pressing force FC, so the movable body 500C bends the bent portion 437C of the base piece 430C. can be bent toward the second end 330C to separate the bent portions 437C on both sides from each other.
また、移動体500Cの突出部530Cが基部片430Cの折曲部437Cを第二端部330C側へ折り曲げる力の方向と、押圧力FCの方向は、交差しているので、移動体500Cの動力が効率的に折曲部437Cに伝達され、移動体500Cは折曲部437Cを容易に折り曲げることができる。特に、移動体500Cの突出部530Cが基部片430Cの折曲部437Cを第二端部330C側へ折り曲げる力の方向と、押圧力FCの方向が、直交している場合は、移動体500Cの動力が更に効率的に折曲部437Cに伝達され、移動体500Cは折曲部437Cを更に容易に折り曲げることができる。
Furthermore, since the direction of the force that causes the protruding portion 530C of the movable body 500C to bend the bending portion 437C of the base piece 430C toward the second end 330C side and the direction of the pressing force FC intersect, the motive force of the movable body 500C is is efficiently transmitted to the bending portion 437C, and the movable body 500C can easily bend the bending portion 437C. In particular, when the direction of the force that causes the protrusion 530C of the moving body 500C to bend the bent portion 437C of the base piece 430C toward the second end 330C is perpendicular to the direction of the pressing force FC, Power is transmitted to the bending portion 437C more efficiently, and the movable body 500C can bend the bending portion 437C more easily.
また、被遮断部400Cの厚みは、従来技術の被遮断部の厚みと同様に厚くすることができ、被遮断部400Cを低抵抗化して電力損失を抑えている。そして、本願発明の電気回路遮断装置600Cでは、別体である基部片430C同士を互いに相対する方向への押圧力FCで突き合わせて電気的に接続された状態を維持している。さらに、電気回路を遮断する際は、従来のように一体形成された被遮断部を物理的に切断するのではなく、元々別体であった基部片430C同士の端面431Cの接触状態を分離すればよい。そのため、被遮断部の低抵抗化を行う場合であっても、従来よりも少ない動力で、電気回路を容易に遮断でき、電気回路遮断装置の大型化や製造コストを抑えることができる。
Further, the thickness of the cut-off section 400C can be made thick like the thickness of the cut-off section in the prior art, and the resistance of the cut-off section 400C is reduced to suppress power loss. In the electric circuit breaking device 600C of the present invention, the separate base pieces 430C are butted against each other with a pressing force FC in opposing directions to maintain the electrically connected state. Furthermore, when interrupting an electric circuit, instead of physically cutting the integrally formed part to be interrupted as in the past, it is necessary to separate the contact state of the end surfaces 431C of the base pieces 430C, which were originally separate pieces. Bye. Therefore, even when reducing the resistance of the part to be interrupted, the electric circuit can be easily interrupted with less power than before, and it is possible to suppress the increase in size and manufacturing cost of the electric circuit interrupting device.
<実施形態5>
では次に、実施形態5に係る本願発明の電気回路遮断装置600Dについて、図16を参照して説明する。なお、図16(a)は、実施形態5に係る電気回路遮断装置600Dの被遮断部400Dの斜視図、図16(b)は、被遮断部400Dの側面図である。なお、実施形態5に係る電気回路遮断装置600Dの構成は、被遮断部400Dの厚さが、実施形態2に係る電気回路遮断装置600Aの被遮断部400Aと異なるが、その他の構成は、実施形態2に係る電気回路遮断装置600Aの構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 5>
Next, an electric circuit breaking device 600D of the present invention according to Embodiment 5 will be described with reference to FIG. 16. Note that FIG. 16(a) is a perspective view of a section to be interrupted 400D of an electric circuit interrupting device 600D according to the fifth embodiment, and FIG. 16(b) is a side view of the section to be interrupted 400D. Note that the configuration of the electric circuit interrupting device 600D according to the fifth embodiment is different from the disconnectedportion 400A of the electric circuit interrupting device 600A according to the second embodiment in the thickness of the disconnected portion 400D, but the other configurations are different from those in the embodiment. Since the configuration is basically the same as that of the electric circuit interrupting device 600A according to the second embodiment, the explanation of the same configuration will be omitted.
では次に、実施形態5に係る本願発明の電気回路遮断装置600Dについて、図16を参照して説明する。なお、図16(a)は、実施形態5に係る電気回路遮断装置600Dの被遮断部400Dの斜視図、図16(b)は、被遮断部400Dの側面図である。なお、実施形態5に係る電気回路遮断装置600Dの構成は、被遮断部400Dの厚さが、実施形態2に係る電気回路遮断装置600Aの被遮断部400Aと異なるが、その他の構成は、実施形態2に係る電気回路遮断装置600Aの構成と基本的に同一なので、同一の構成については説明を省略する。 <Embodiment 5>
Next, an electric circuit breaking device 600D of the present invention according to Embodiment 5 will be described with reference to FIG. 16. Note that FIG. 16(a) is a perspective view of a section to be interrupted 400D of an electric circuit interrupting device 600D according to the fifth embodiment, and FIG. 16(b) is a side view of the section to be interrupted 400D. Note that the configuration of the electric circuit interrupting device 600D according to the fifth embodiment is different from the disconnected
図16に示すように、被遮断部400Dにおいて、基部片430Dの端面431Dと分離片420Dの端面421Dとが接触する箇所の厚みはW1となっている。また、基部片430Dの端面431Dの反対側では、外部の電気回路に接続される外部接続端子439Dの厚みがW2となっている。そして、接触箇所の厚みW1は、外部接続端子439Dの厚みW2よりも大きくなっている(W1>W2)。このように、基部片430Dの端面431Dと分離片420Dの端面421Dとの接触箇所の厚みW1を、他の部分よりも局所的に大きくすることで、基部片430Dの端面431Dと分離片420Dの端面421Dとの接触面積をより広くすることができ、その結果、接触箇所における低抵を低くして電力損失を抑えることが出来る。
As shown in FIG. 16, in the blocked portion 400D, the thickness of the portion where the end surface 431D of the base piece 430D and the end surface 421D of the separation piece 420D contact is W1. Moreover, on the opposite side of the end surface 431D of the base piece 430D, the thickness of an external connection terminal 439D connected to an external electric circuit is W2. The thickness W1 of the contact portion is larger than the thickness W2 of the external connection terminal 439D (W1>W2). In this way, by locally increasing the thickness W1 of the contact point between the end surface 431D of the base piece 430D and the end surface 421D of the separation piece 420D compared to other parts, The contact area with the end surface 421D can be made wider, and as a result, the resistance at the contact point can be lowered and power loss can be suppressed.
また、本願発明の電気回路遮断装置は、上記の実施例に限定されず、請求の範囲に記載された範囲、実施形態の範囲で、種々の変形例、組み合わせが可能であり、これらの変形例、組み合わせもその権利範囲に含むものである。
Further, the electric circuit interrupting device of the present invention is not limited to the above embodiments, and various modifications and combinations are possible within the scope of the claims and the embodiments, and these modifications , combinations are also included within the scope of the right.
Claims (5)
- ハウジングと、
当該ハウジング内に配置され、電気回路の一部を構成する被遮断部と、
前記ハウジングの第一端部側に配置される動力源と、
前記ハウジング内を、前記第一端部と、当該第一端部の反対側の第二端部との間で移動する移動体とを備えた、電気回路遮断装置であって、
前記被遮断部は、物理的に別体である2つの基部片を備えており、
前記基部片の端面の間に、互いに相対する方向への押圧力を加えて、前記基部片同士を電気的に接続させており、
前記移動体は、前記動力源によって、前記第一端部から前記第二端部に向けて移動しつつ、前記移動体の一部が、前記基部片間の接続を遮断するように構成されていることを特徴とする電気回路遮断装置。
housing and
a part to be interrupted that is disposed within the housing and constitutes a part of the electric circuit;
a power source disposed on the first end side of the housing;
An electric circuit breaker comprising: a movable body that moves within the housing between the first end and a second end opposite to the first end;
The blocked portion includes two physically separate base pieces,
A pressing force is applied between the end surfaces of the base pieces in directions facing each other to electrically connect the base pieces,
The movable body is configured such that while the movable body is moved from the first end toward the second end by the power source, a part of the movable body interrupts the connection between the base pieces. An electric circuit breaking device characterized by:
- 前記基部片の間に分離片が設けられ、
前記分離片は、前記押圧力によって、両側の前記基部片に押圧されて挟まれていることを特徴とする請求項1に記載の電気回路遮断装置。
a separation piece is provided between the base pieces;
The electric circuit breaker device according to claim 1, wherein the separating piece is pressed and sandwiched between the base pieces on both sides by the pressing force.
- 前記被遮断部において、前記分離片の端面と前記基部片の端面とが接触する箇所の厚みは、前記基部片と前記電気回路とを接続する外部接続端子の厚みよりも、大きいことを特徴とする請求項2に記載の電気回路遮断装置。
In the to-be-interrupted portion, the thickness of the portion where the end face of the separation piece and the end face of the base piece come into contact is greater than the thickness of the external connection terminal that connects the base piece and the electric circuit. The electric circuit interrupting device according to claim 2.
- 前記基部片の端面又は前記分離片の端面には、前記被遮断部を構成する金属よりも硬度が低い金属がメッキされていることを特徴とする請求項1から3のいずれかに記載の電気回路遮断装置。
The electrical appliance according to any one of claims 1 to 3, wherein the end face of the base piece or the end face of the separation piece is plated with a metal whose hardness is lower than that of the metal constituting the cut-off part. circuit breaker.
- 前記基部片の端面又は前記分離片の端面には、嵌め合い可能な窪面又は突出面が設けられていることを特徴とする請求項1から4のいずれかに記載の電気回路遮断装置。 The electric circuit breaking device according to any one of claims 1 to 4, wherein an end face of the base piece or an end face of the separation piece is provided with a recessed face or a protruding face that can be fitted.
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JP2022-034984 | 2022-03-08 | ||
JP2022034984A JP2023130604A (en) | 2022-03-08 | 2022-03-08 | Electric circuit breaker device |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000090795A (en) * | 1998-09-17 | 2000-03-31 | Harness Syst Tech Res Ltd | Circuit breaker |
JP2000215770A (en) * | 1998-11-16 | 2000-08-04 | Yazaki Corp | Circuit breaking device |
JP2000260277A (en) * | 1999-03-10 | 2000-09-22 | Yazaki Corp | Circuit breaker device |
JP2013239411A (en) * | 2012-05-17 | 2013-11-28 | Daikin Ind Ltd | Circuit switching unit |
JP2019050162A (en) * | 2017-09-12 | 2019-03-28 | 株式会社ダイセル | Electric circuit breaker |
WO2019188582A1 (en) * | 2018-03-28 | 2019-10-03 | パナソニックIpマネジメント株式会社 | Circuit breaker |
US20220037094A1 (en) * | 2018-09-24 | 2022-02-03 | Eaton Intelligent Power Limited | Switch with pyrotechnic actuator |
JP2023000054A (en) * | 2021-06-17 | 2023-01-04 | 太平洋精工株式会社 | Electric circuit breaker device |
-
2022
- 2022-03-08 JP JP2022034984A patent/JP2023130604A/en active Pending
- 2022-12-23 WO PCT/JP2022/047501 patent/WO2023171087A1/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000090795A (en) * | 1998-09-17 | 2000-03-31 | Harness Syst Tech Res Ltd | Circuit breaker |
JP2000215770A (en) * | 1998-11-16 | 2000-08-04 | Yazaki Corp | Circuit breaking device |
JP2000260277A (en) * | 1999-03-10 | 2000-09-22 | Yazaki Corp | Circuit breaker device |
JP2013239411A (en) * | 2012-05-17 | 2013-11-28 | Daikin Ind Ltd | Circuit switching unit |
JP2019050162A (en) * | 2017-09-12 | 2019-03-28 | 株式会社ダイセル | Electric circuit breaker |
WO2019188582A1 (en) * | 2018-03-28 | 2019-10-03 | パナソニックIpマネジメント株式会社 | Circuit breaker |
US20220037094A1 (en) * | 2018-09-24 | 2022-02-03 | Eaton Intelligent Power Limited | Switch with pyrotechnic actuator |
JP2023000054A (en) * | 2021-06-17 | 2023-01-04 | 太平洋精工株式会社 | Electric circuit breaker device |
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