A kind of load control unit of smart jack
Technical field
The present invention relates to smart jack load control technology field, be specifically related to a kind of load control unit of smart jack.
Background technology
Socket major part commonly used at present is not provided with functions such as overcurrent protection, short-circuit protection; Therefore; People adopt circuit breaker that circuit is realized overload and short-circuit protection more, and when overload or short circuit appearred in the circuit burst, circuit breaker ensured circuit safety with automatic shutdown circuit.And existing circuit breaker has its functional limitation, and the protection range broad can not be realized protecting one to one; And the sensitivity of existing circuit breaker is low, break-time is long, and when overload appearred in circuit, the lower circuit breaker of sensitivity maybe untimely tripping operation open circuit and cause burning out electrical equipment; Even cause the appliance fire accident; Therefore, adopt the breaker protection circuit safety to exist, be difficult to ensure Electrical Safety than lower security hidden danger.
Summary of the invention
In view of this, the present invention's technical problem that will solve provides a kind of highly sensitive, breaking speed is fast, the life-span is long, stable and reliable for performance smart jack load control unit.
For solving the problems of the technologies described above; Technical scheme provided by the invention is: a kind of load control unit of smart jack; Comprise shell, be installed in input terminal assembly, output terminal assembly on the corresponding installation position of enclosure; Also comprise the reset assembly, T type lever assembly, disjunction assembly, moving contact component and the overcurrent monitor component that are installed on the corresponding installation position of enclosure; Said moving contact component and separable butt joint of input terminal assembly two gate terminal; And is connected with output terminal assembly two gate terminal through lead, said overcurrent monitor component is connected in through lead and works the overcurrent signal effect of monitoring between moving contact component and the disjunction assembly, and works in coordination with circuit connecting and disconnecting control is used with reset assembly, T type lever assembly, disjunction assembly, moving contact component.
Said input terminal assembly comprises L utmost point input terminal and N utmost point input terminal; Said L utmost point input terminal specifically comprises and is used for the L utmost point input wires screw and the L utmost point conducting strip that are connected with L utmost point input lead; The sheet metal that said L utmost point conducting strip is the stepped bending in right angle and have screw corresponding to the bending end of L utmost point input wires screw; Said L utmost point input wires screw is screwed in screw and is connected with L utmost point conducting strip, and said L utmost point conducting strip is provided with L utmost point input terminal fixed contact corresponding to the bending outside of moving contact component; Said N utmost point input terminal specifically comprises and is used for the N utmost point input wires screw and the N utmost point conducting strip that are connected with N utmost point input lead; The sheet metal that said N utmost point conducting strip is the stepped bending in right angle and have screw corresponding to the bending end of N utmost point input wires screw; Said N utmost point input wires screw is screwed in screw and is connected with N utmost point conducting strip, and said N utmost point conducting strip is provided with N utmost point input terminal fixed contact corresponding to the bending outside of moving contact component.
Said output terminal assembly comprises L utmost point lead-out terminal and N utmost point lead-out terminal; Said L utmost point lead-out terminal specifically comprises and is used for the L utmost point output connection screw and the L utmost point electric-conductor that are connected with L utmost point output lead; The sheet metal that said L utmost point electric-conductor is rectangular bending and have screw corresponding to the bending end of L utmost point output connection screw, said L utmost point output connection screw is screwed in screw and is connected with L utmost point electric-conductor; Said N utmost point lead-out terminal specifically comprises and is used for the N utmost point output connection screw and the N utmost point electric-conductor that are connected with N utmost point output lead; The sheet metal that said N utmost point electric-conductor is rectangular bending and have screw corresponding to the bending end of N utmost point output connection screw, said N utmost point output connection screw is screwed in screw and is connected with N utmost point electric-conductor.
Said reset assembly comprises the resetting coil skeleton, around the resetting coil of resetting coil skeleton outside be arranged on the static iron core that resets in the resetting coil skeleton axle center hole.The two ends of resetting coil are connected on the control PCB.
Said T type lever assembly comprise through rotation axis be installed on the installation position T type lever be connected first moving magnet, second moving magnet at T type lever cross bar two ends.
Said disjunction assembly comprises the broken coil skeleton, around the short-circuited coil and the overcurrent coil of broken coil skeleton outside and be arranged on the disjunction static iron core in the broken coil skeleton axle center hole.One end of said short-circuited coil and overcurrent coil all is connected with the conducting strip of L utmost point lead-out terminal, and the other end of short-circuited coil is connected with the right static contact of overcurrent monitor component, and the other end of overcurrent coil then is connected with the left static contact of overcurrent monitor component.
Said reset assembly and disjunction assembly are separately positioned on the corresponding below at said T type lever cross bar two ends, and the said static iron core that resets, disjunction static iron core are corresponding with first moving magnet, second moving magnet respectively.
Said moving contact component comprises moving pedestal, the moving support of horizontal T-shape and spring; Said moving pedestal terminally is connected, has groove away from the opposite side of T type lever montant through connecting rod and T type lever montant near a side of T type lever montant; The terminal socket spring of the mobile jib of the moving support of said horizontal T-shape also inserts groove and the grafting of moving pedestal; The secondary bar two ends of the moving support of said horizontal T-shape are socketed with first movable contact spring and second movable contact spring respectively, and the side of said first movable contact spring, the corresponding N utmost point of second movable contact spring input terminal fixed contact, L utmost point input terminal fixed contact is connected with first moving contact, second moving contact respectively.Second movable contact spring also through lead be connected with the overcurrent monitor component, first movable contact spring passes through lead and is connected with N utmost point output terminal assembly.
Said overcurrent monitor component comprises that the lower end passes through fixed mount left static contact, bimetal leaf, the right static contact of parallel series successively; Said bimetal leaf upper end is provided with two-sided moving contact; Right side, said left static contact upper end is provided with the left fixed contact corresponding with the two-sided moving contact left side, and left side, said right static contact upper end is provided with and the corresponding right fixed contact in two-sided moving contact the right.Left side static contact, right static contact, bimetal leaf are connected with second movable contact spring of overcurrent coil, short-circuited coil, moving contact component through lead respectively.
The present invention also is provided with and is used to be absorbed in that circuit is connected or the extinguisher assembly of the electric arc that disjunction moment produces.Said extinguisher assembly comprises near be arranged on the L utmost point input terminal extinguisher one and near the extinguisher two that is arranged on the N utmost point input terminal.
Said short-circuited coil, overcurrent coil adopt welding manner to be connected with lead.
Operation principle of the present invention is following:
One, energized: when pressing start button; Make resetting coil conducting electric current; This moment, reset assembly produced magnetic field because of energising, thereby made the repulsive force that produces between the static iron core and first moving magnet of resetting much larger than the intrinsic suction that resets between the static iron core and first moving magnet, and causing T type lever is that fulcrum rotates rapidly with the rotation axis; The static iron core that resets separates with first moving magnet; And make the disjunction static iron core and the second moving magnet adhesive, the rotation of T type lever impel T type lever montant to promote moving contact component, first fixed contact, second fixed contact are engaged with first moving contact, second moving contact; The static iron core and the second moving magnet adhesive make T type lever keep the pressure to moving contact component owing to reset, and the effect of being stressed between fixed contact and the moving contact keeps the energized state.
Two, deenergization: 1, when current overload, bimetal leaf bends, and impels two-sided moving contact to separate with the 4th fixed contact, and contacts with the 3rd fixed contact, thereby overload current is flow through from the overcurrent coil.The electric current that flows through the overcurrent coil makes the disjunction assembly produce magnetic field; Thereby make the repulsive force that produces between the disjunction static iron core and second moving magnet much larger than the intrinsic suction between the disjunction static iron core and second moving magnet; Causing T type lever is that fulcrum rotates rapidly with the rotation axis; The disjunction static iron core separates with second moving magnet, and makes the reset static iron core and the first moving magnet adhesive, the rotation of T type lever impel T type lever montant pulling moving contact component; First fixed contact, second fixed contact are separated with first moving contact, second moving contact, thus deenergization.2, when short circuit; Short circuit current flows through short-circuited coil makes the disjunction assembly produce magnetic field; Thereby make the repulsive force that produces between the disjunction static iron core and second moving magnet much larger than the intrinsic suction between the disjunction static iron core and second moving magnet, causing T type lever is that fulcrum rotates rapidly with the rotation axis, and the disjunction static iron core separates with second moving magnet; And make the reset static iron core and the first moving magnet adhesive; The rotation of T type lever impels T type lever montant pulling moving contact component, and first fixed contact, second fixed contact are separated with first moving contact, second moving contact, thus deenergization.
Compared with prior art, the present invention has following advantage:
The present invention is through being provided with reset assembly, T type lever assembly, disjunction assembly, moving contact component and overcurrent monitor component; Utilize the collaborative socket that makes between each assembly to possess overcurrent protection and short-circuit protection function; And the present invention adopts highly sensitive bimetal leaf and short-circuited coil; Make overcurrent control assembly and short circuit control assembly have advantage simple in structure, highly sensitive, that breaking speed is fast, the life-span is long, stable and reliable for performance; More effective protection socket line security more can ensure people's property safety.
Description of drawings
Fig. 1 is each component groups assembling structure sketch map under the energized state of the present invention;
Fig. 2 is each component groups assembling structure sketch map under the deenergization state of the present invention.
Embodiment
Below will combine accompanying drawing and embodiment that the present invention is explained in further detail for the ease of it will be appreciated by those skilled in the art that.
Like Fig. 1, shown in 2; A kind of load control unit of smart jack; Comprise shell, be installed in input terminal assembly, output terminal assembly on the corresponding installation position of enclosure; Also comprise the reset assembly, T type lever assembly, disjunction assembly, moving contact component and the overcurrent monitor component that are installed on the corresponding installation position of enclosure; Moving contact component and separable butt joint of input terminal assembly two gate terminal; And is connected with output terminal assembly two gate terminal through lead, the overcurrent monitor component is connected in through lead and works the overcurrent signal effect of monitoring between moving contact component and the disjunction assembly, and works in coordination with circuit connecting and disconnecting control is used with reset assembly, T type lever assembly, disjunction assembly, moving contact component.
The input terminal assembly comprises L utmost point input terminal and N utmost point input terminal; L utmost point input terminal specifically comprises the L utmost point input wires screw 42 and L utmost point conducting strip 41 that is used for being connected with L utmost point input lead; L utmost point conducting strip is the sheet metal of the stepped bending in right angle and has screw corresponding to the bending end of L utmost point input wires screw; L utmost point input wires screw is screwed in screw and is connected with L utmost point conducting strip, and L utmost point conducting strip is provided with L utmost point input terminal fixed contact 39 corresponding to the bending outside of moving contact component; N utmost point input terminal specifically comprises the N utmost point input wires screw 7 and N utmost point conducting strip 6 that is used for being connected with N utmost point input lead; N utmost point conducting strip is the sheet metal of the stepped bending in right angle and has screw corresponding to the bending end of N utmost point input wires screw; N utmost point input wires screw is screwed in screw and is connected with N utmost point conducting strip, and N utmost point conducting strip is provided with N utmost point input terminal fixed contact 4 corresponding to the bending outside of moving contact component.
Output terminal assembly comprises L utmost point lead-out terminal and N utmost point lead-out terminal; L utmost point lead-out terminal specifically comprises the L utmost point output connection screw 27 and L utmost point electric-conductor 26 that is used for being connected with L utmost point output lead; L utmost point electric-conductor is the sheet metal of rectangular bending and has screw corresponding to the bending end of L utmost point output connection screw that L utmost point output connection screw is screwed in screw and is connected with L utmost point electric-conductor; N utmost point lead-out terminal specifically comprises the N utmost point output connection screw 14 and N utmost point electric-conductor 13 that is used for being connected with N utmost point output lead; N utmost point electric-conductor is the sheet metal of rectangular bending and has screw corresponding to the bending end of N utmost point output connection screw that N utmost point output connection screw is screwed in screw and is connected with N utmost point electric-conductor.
Reset assembly comprises resetting coil skeleton 8, around the resetting coil 9 of resetting coil skeleton outside be arranged on the static iron core 10 that resets in the resetting coil skeleton axle center hole, the two ends of resetting coil 9 are connected on the control PCB.
T type lever assembly comprises through rotation axis 15 and is installed in T type lever 19 and first moving magnet 11, second moving magnet 20 that are connected T type lever cross bar two ends on the installation position.
The disjunction assembly comprises broken coil skeleton 22, around the short-circuited coil 23 and the overcurrent coil 24 of broken coil skeleton outside and be arranged on the disjunction static iron core 21 in the broken coil skeleton axle center hole.One end of short-circuited coil 23 and overcurrent coil 24 all is connected with the L utmost point conducting strip 26 of L utmost point lead-out terminal; The other end of short-circuited coil 23 is connected with the right static contact 31 of overcurrent monitor component, and the other end of overcurrent coil 24 then is connected with the left static contact 33 of overcurrent monitor component.
Reset assembly and disjunction assembly are separately positioned on the corresponding below at T type lever 19 cross bar two ends, and the static iron core 10 that resets, disjunction static iron core 21 are corresponding with first moving magnet 11, second moving magnet 20 respectively.
Moving contact component comprises moving pedestal 36, the moving support 1 of horizontal T-shape and spring 35; Moving pedestal 36 is connected with T type lever montant end, has groove away from the opposite side of T type lever montant through connecting rod 50 near a side of T type lever 19 montants; The terminal socket spring 35 of the mobile jib of the moving support 1 of horizontal T-shape also inserts groove and 36 grafting of moving pedestal; The side that the secondary bar two ends of the moving support 1 of horizontal T-shape are socketed with the corresponding N utmost point input terminal fixed contact of first movable contact spring 2 and second movable contact spring, 37, the first movable contact springs 2, second movable contact spring 37 4, L utmost point input terminal fixed contact 39 respectively is connected with first moving contact 3, second moving contact 38 respectively.Second movable contact spring 37 also through lead be connected with the overcurrent monitor component, first movable contact spring 2 passes through lead and is connected with N utmost point output terminal assembly.
The overcurrent monitor component comprises that the lower end passes through fixed mount 30 left static contact 33, bimetal leaf 32, the right static contact 31 of parallel series successively; Bimetal leaf 32 upper ends are provided with two-sided moving contact 17; Right side, static contact 33 upper end, a left side is provided with and the corresponding left fixed contact 16 in two-sided moving contact 17 left sides, and left side, right static contact 31 upper ends is provided with and the corresponding right fixed contact 18 in two-sided moving contact the right.Left side static contact 33, right static contact 31, bimetal leaf 32 are connected with second movable contact spring 37 of overcurrent coil 24, short-circuited coil 23, moving contact component through lead respectively.
The load control unit of present embodiment smart jack also is provided with the extinguisher assembly, is used to be absorbed in the electric arc of circuit connection or disjunction moment generation.The extinguisher assembly comprises near be arranged on the L utmost point input terminal extinguisher 1 and near the extinguisher 2 40 that is arranged on the N utmost point input terminal.
Short-circuited coil, overcurrent coil, second movable contact spring adopt welding manner to be connected with lead.Left side static contact, right static contact, bimetal leaf adopt welding manner to be connected with lead.
Operation principle of the present invention is following:
One, energized: when pressing start button; Make resetting coil conducting electric current; This moment, reset assembly produced magnetic field because of energising, thereby made the repulsive force that produces between the static iron core and first moving magnet of resetting much larger than the intrinsic suction that resets between the static iron core and first moving magnet, and causing T type lever is that fulcrum rotates rapidly with the rotation axis; The static iron core that resets separates with first moving magnet; And make the disjunction static iron core and the second moving magnet adhesive, the rotation of T type lever impel T type lever montant to promote moving contact component, first fixed contact, second fixed contact are engaged with first moving contact, second moving contact; The static iron core and the second moving magnet adhesive make T type lever keep the pressure to moving contact component owing to reset, and the effect of being stressed between fixed contact and the moving contact keeps the energized state.
Two, deenergization: 1, when current overload, bimetal leaf bends, and impels two-sided moving contact to separate with the 4th fixed contact, and contacts with the 3rd fixed contact, thereby overload current is flow through from the overcurrent coil.The electric current that flows through the overcurrent coil made the disjunction assembly produce magnetic field; Thereby make the repulsive force that produces between the disjunction static iron core and second moving magnet much larger than the intrinsic suction between the disjunction static iron core and second moving magnet; Causing T type lever is that fulcrum rotates rapidly with the rotation axis; The disjunction static iron core separates with second moving magnet, and makes the reset static iron core and the first moving magnet adhesive, the rotation of T type lever impel T type lever montant pulling moving contact component; First fixed contact, second fixed contact are separated with first moving contact, second moving contact, thus deenergization.2, when short circuit; Short circuit current flows through short-circuited coil makes the disjunction assembly produce magnetic field; Thereby make the repulsive force that produces between the disjunction static iron core and second moving magnet much larger than the intrinsic suction between the disjunction static iron core and second moving magnet, causing T type lever is that fulcrum rotates rapidly with the rotation axis, and the disjunction static iron core separates with second moving magnet; And make the reset static iron core and the first moving magnet adhesive; The rotation of T type lever impels T type lever montant pulling moving contact component, and first fixed contact, second fixed contact are separated with first moving contact, second moving contact, thus deenergization.
The foregoing description is a preferred implementation of the present invention, and in addition, the present invention can also have other implementations.That is to say that under the prerequisite that does not break away from the present invention's design, any conspicuous replacement also should fall within protection scope of the present invention.