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CN-122025487-A - Fuse with adjustable built-in a plurality of fuse-elements

CN122025487ACN 122025487 ACN122025487 ACN 122025487ACN-122025487-A

Abstract

The invention discloses a built-in multiple melt adjustable fuse, belonging to the technical field of electric fittings, aiming at the problem that the traditional single melt design can not adapt to the power requirement of diversified electric equipment, the invention provides a flexible adjustable technical scheme, which is characterized in that a plurality of melt components with rated current increased in sequence are arranged in a breaker shell, and a drive component is used for controlling a power transmission clamping rod to be spliced with a power connection cover of different melt components so as to realize the rapid switching of the melt components, and the improvement comprises the following steps: the elastic conductive frame and the clamping protrusions are movably clamped and positioned, the spherical end of the electric connection column is electrically clamped with the electric connection groove, inert gas is filled in the closed tube, the driving member pushes the electric transmission clamping rod to move by electromagnetic repulsion, and the fuse can adapt to protection requirements of electric equipment with different powers, and reduces equipment cost and management difficulty.

Inventors

  • TAO RUIHAN

Assignees

  • 高江电力科技有限公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. A fuse with a plurality of melt-adjustable fuses disposed therein, comprising: A fixing plate (1), wherein one side of the fixing plate (1) is fixedly provided with a butt joint card cover (2); The circuit breaker shell (8), one side of the circuit breaker shell (8) is inserted into the butt joint clamp cover (2) and is clamped and fixed with the inner wall of the butt joint clamp cover (2); The two power connection parts are symmetrically and fixedly assembled on one side of the fixed plate (1) and extend into the butt joint card cover (2); The two electricity transmission components are respectively arranged on the top inner wall and the bottom inner wall of the breaker shell (8), extend into the butt joint clamp cover (2) and are electrically clamped with the corresponding electricity connection components; a mounting member fixedly fitted in the breaker case (8); The plurality of melt components are assembled on the mounting component at equal intervals, rated currents of the plurality of melt components are sequentially increased, and the top end and the bottom end of each melt component can be movably and electrically clamped with the two power transmission components; The fuse body parts with different rated currents are electrically clamped with the two power transmission parts, so that the protection requirements of electric equipment with different powers can be met, the whole fuse is not required to be replaced, and the equipment cost and the management difficulty are reduced.
  2. 2. The fuse with the built-in multiple melt adjustable fuses according to claim 1, wherein the inner walls of the top side and the bottom side of the butt joint clamp cover (2) are respectively provided with a butt joint groove (3), and clamping bulges (4) are fixedly arranged in each butt joint groove (3); One ends of the two electric connection parts, which are close to each other, extend into the corresponding butt joint grooves (3), one sides of the two electric transmission parts, which are far away from each other, are respectively inserted into the corresponding butt joint grooves (3) and are clamped and positioned with the clamping protrusions (4), and meanwhile, the electric connection between the electric transmission parts and the corresponding electric connection parts is realized.
  3. 3. The fuse with the built-in multiple melt adjustable fuses according to claim 2, wherein the power receiving component comprises a power receiving column (5), the power receiving column (5) penetrates through one side inner wall of the butt joint groove (3) and is fixedly connected with one side inner wall of the butt joint groove (3), and one end of the power receiving column (5) positioned in the butt joint groove (3) is a spherical surface; one end of the power connection column (5) positioned at the outer side of the butt joint card cover (2) is electrically connected with a wire holder (7) through a connecting wire (6), and the wire holder (7) is used for being electrically connected with an external wire; A wire collecting plate (38) is fixedly sleeved on the connecting wire (6), and the wire collecting plate (38) is fixedly assembled on one side of the fixed plate (1); The spherical structure of the power receiving column (5) is convenient to clamp with the power transmission component rapidly and accurately, the wire collecting plate (38) can arrange the connecting wires (6) in order, and stability of circuit connection is guaranteed.
  4. 4. A built-in plurality of melt-adjustable fuses according to claim 3, wherein the power transmission component comprises a mounting shell (9) fixedly assembled on a breaker shell (8), an elastic conductive frame (10) is fixedly assembled in the mounting shell (9), and one side of the elastic conductive frame (10) extends into the butt joint groove (3); An arc clamping groove and a power connection groove (37) are respectively arranged on the elastic conductive frame (10), one end of the power connection column (5) positioned in the butt joint groove (3) is electrically clamped with the power connection groove (37), and the arc clamping groove is movably clamped with the clamping protrusion (4); the elastic conductive frame (10) is provided with a connecting component, one side of the connecting component extends into the breaker shell (8) and is connected with the inner wall of one side corresponding to the breaker shell (8), and the connecting component can be respectively and movably and electrically clamped with a plurality of melt components; The elastic structure of the elastic conductive frame (10) can compensate assembly errors, so that the reliable electric connection of the power receiving column (5) and the power receiving groove (37) is ensured all the time, and meanwhile, the stable positioning of the breaker shell (8) is realized by the cooperation of the arc-shaped clamping groove and the clamping protrusion (4).
  5. 5. The fuse of claim 4, wherein the connection assembly comprises a conductive plate (11) electrically and fixedly mounted on an elastic conductive frame (10), wherein one side of the conductive plate (11) extends into the breaker case (8) and is electrically and fixedly connected with a conductive plate (12); One side of the conductive plate (12) is fixedly and electrically connected with a plurality of power connection covers (13) at equal intervals, and the power connection covers (13) are movably and electrically clamped with corresponding melt parts; the arrangement of the plurality of electric connection covers (13) can realize accurate butt joint with different melt components, and the melt components can form an electrified loop with the electric conduction plate (11) and the electric conduction plate (12) through clamping the melt components with the corresponding electric connection covers (13).
  6. 6. The built-in plurality of melt-adjustable fuses according to any one of claims 1 to 5, wherein the mounting component comprises a mounting bracket (14) fixedly fitted within the circuit breaker housing (8), and a sealing plate (15) for sealing off the opening of the circuit breaker housing (8); a plurality of connecting screws (16) are symmetrically and penetratingly connected to the sealing plate (15), and the connecting screws (16) penetrate through the mounting frame (14) and are fixedly connected with the mounting frame (14) through threads; one side of the sealing plate (15) positioned in the breaker shell (8) is fixedly provided with a supporting frame (17), and a plurality of butt joint clamping plates (18) are fixedly arranged in the supporting frame (17) at equal intervals; The melt component is respectively clamped and fixed with a plurality of butt joint clamping plates (18), and the top and the bottom of the melt component respectively penetrate through the top inner wall and the bottom inner wall of the supporting frame (17) and extend to the upper part and the lower part of the supporting frame (17); Realize the dismantlement fixed of shrouding (15) and mounting bracket (14) through connecting screw rod (16), the maintenance of the fuse-element part of being convenient for is changed, and butt joint cardboard (18) can ensure that fuse-element part assembly position is accurate, avoids taking place the displacement in the course of the work.
  7. 7. The built-in plurality of melt-adjustable fuses of claim 6, wherein the melt component comprises a closed tube (19), the closed tube (19) being respectively snap-fitted with a plurality of docking cards (18); the top end and the bottom end of the closed tube (19) are respectively provided with a butt joint assembly, the two butt joint assemblies are electrically connected with the same fuse wire (22) positioned in the closed tube (19), and inert gas is filled in the closed tube (19); The two power-on modules respectively penetrate through the top inner wall and the bottom inner wall of the support frame (17) and are fixedly connected with the corresponding inner walls of the support frame (17); The inert gas in the closed tube (19) can prevent the peripheral components from being damaged by electric arc generated when the fuse wire (22) is blown, so that the working safety and the service life of the fuse are improved.
  8. 8. The fuse with the built-in plurality of melt-adjustable fuses according to claim 7, wherein the docking assembly comprises a sealing cover (20) fixedly clamped at the end of the closed tube (19), and an electric clamping point (21) is fixedly assembled on the sealing cover (20), and the electric clamping point (21) is electrically clamped with the corresponding plug-in assembly; The sealing cover (20) is internally and fixedly provided with a power connection plate (23), the power connection plate (23) is electrically connected with a corresponding power connection clamping point (21), and one side of the power connection plate (23) extends into the closed tube (19) and is attached to the inner wall of the closed tube (19); The top end and the bottom end of the fuse wire (22) are respectively and electrically connected with the two corresponding power connection plates (23); The sealing cover (20) can realize the sealing of the sealing tube (19) to ensure that inert gas is not leaked, and meanwhile, the attaching connection of the power connection plate (23) and the fuse wire (22) can ensure the stability of current transmission.
  9. 9. The fuse with the built-in multiple melt adjustable fuses according to claim 8, wherein the power plug assembly comprises a butt joint seat (25) fixedly assembled on the inner wall of one side of the supporting frame (17), a power connection clamping groove (26) is formed in one side, close to the sealing cover (20), of the butt joint seat (25), and one end of the power connection clamping point (21) is inserted into the power connection clamping groove (26) and is electrically clamped with the butt joint seat (25); The butt joint seat (25) is fixedly and electrically connected with the isolation box (24), and the isolation box (24) penetrates through the inner wall of one side corresponding to the support frame (17) and is fixedly connected with the inner wall of one side of the support frame (17); the isolation box (24) is internally and electrically connected with a power transmission clamping rod (27) in a sliding manner, and one end of the power transmission clamping rod (27) extends to the outer side of the isolation box (24) and can be electrically connected with a corresponding power connection cover (13) in a pluggable manner; The power transmission device further comprises a driving member, wherein the driving member is assembled on the inner wall of one side of the supporting frame (17), and one side of the driving member extends to the outer side of the supporting frame (17) and is in transmission connection with the power transmission clamping rod (27); The power transmission clamping rod (27) is driven to move through the driving component, so that the power transmission clamping rod (27) and the power receiving cover (13) can be quickly connected and disconnected, and then the switching of different melt parts is realized.
  10. 10. The fuse with multiple melt-adjustable fuses in the interior of claim 9, wherein the driving component comprises a supporting box (29) penetrating through the inner wall of one side of the supporting frame (17) and fixedly connected with the inner wall of one side of the supporting frame (17), and a moving plate (31) is slidably connected in the supporting box (29); One side of the moving plate (31) is fixedly provided with a transmission rod (30), one end of the transmission rod (30) extends to the outer side of the supporting box (29) and is fixedly provided with a transmission plate (28), and the transmission plate (28) is fixedly sleeved on the power transmission clamping rod (27); a first electromagnet (33) is fixedly arranged on the other side of the moving plate (31), a second electromagnet (34) is fixedly arranged on the inner wall of one side of the supporting box (29), and the magnetic poles of one side, close to each other, of the first electromagnet (33) and the second electromagnet (34) are the same; The transmission rod (30) is sleeved with a compression spring (32) positioned in the supporting box (29), and two ends of the compression spring (32) are fixedly connected with one side inner wall of the supporting box (29) and one side of the moving plate (31) through draw hooks respectively; The repulsive force generated after the first electromagnet (33) and the second electromagnet (34) are electrified can push the movable plate (31) to move, and then the transmission rod (30) and the transmission plate (28) drive the transmission clamping rod (27) to be inserted into the power connection cover (13), and the compression spring (32) can pull the transmission clamping rod (27) to reset after power is off, so that quick switching and resetting of melt components are realized.

Description

Fuse with adjustable built-in a plurality of fuse-elements Technical Field The invention relates to the technical field of electric accessories, in particular to a fuse with a plurality of built-in melt adjustable fuses. Background In an electric power system, a fuse is widely applied to overload and short-circuit protection of a circuit as an important protection electric appliance, and a traditional fuse generally adopts a single melt design, namely, only one melt is arranged in one fuse, the melt has fixed rated current passing capability, and when the current in the circuit exceeds the rated current of the melt, the melt is fused, so that the circuit is cut off, and the protection effect is achieved; However, with the continuous development of a power system and the diversification of electric equipment, the limitation of the traditional single melt fuse is gradually revealed, on one hand, the power difference of different electric equipment is larger, the rated current requirement of the fuse is different, when the traditional single melt fuse is used, the electric equipment with different power is required to be provided with fuses with different specifications, the equipment cost and the management difficulty are increased, a large amount of installation space is occupied, on the other hand, under the scene that the power of some electric equipment is possibly changed or the electric power is required to be temporarily adjusted, the traditional single melt fuse cannot flexibly adapt to the change, the requirement can be met only by replacing the fuse, the operation is complicated and the efficiency is low; in view of the above problems, the present disclosure proposes a fuse with a plurality of melt-adjustable fuses. Disclosure of Invention The invention provides a fuse with an adjustable built-in multiple melts, which solves the problem that the traditional single melt design cannot adapt to the power requirements of diversified electric equipment. The invention provides the following technical scheme: A fuse with a plurality of melt-adjustable fuses disposed therein, comprising: The fixing plate is fixedly provided with a butt joint clamp cover at one side; The circuit breaker shell is inserted into the butt joint clamp cover at one side of the circuit breaker shell and is clamped and fixed with the inner wall of the butt joint clamp cover; the two power connection parts are symmetrically and fixedly assembled on one side of the fixed plate and extend into the butt joint card cover; The two electricity transmission components are respectively arranged on the top inner wall and the bottom inner wall of the breaker shell, extend into the butt joint clamp cover and are electrically clamped with the corresponding electricity connection components; the mounting component is fixedly assembled in the breaker shell; The plurality of melt components are assembled on the mounting component at equal intervals, rated currents of the plurality of melt components are sequentially increased, and the top end and the bottom end of each melt component can be movably and electrically clamped with the two power transmission components; The fuse body parts with different rated currents are electrically clamped with the two power transmission parts, so that the protection requirements of electric equipment with different powers can be met, the whole fuse is not required to be replaced, and the equipment cost and the management difficulty are reduced. In one possible design, the inner walls of the top side and the bottom side of the butt joint clamp cover are respectively provided with a butt joint groove, and each butt joint groove is fixedly provided with a clamping protrusion; One ends of the two electric connection parts, which are close to each other, extend into the corresponding butt joint grooves respectively, one sides of the two electric transmission parts, which are far away from each other, are respectively inserted into the corresponding butt joint grooves and are clamped and positioned with the clamping protrusions, and meanwhile, the electric connection between the electric transmission parts and the corresponding electric connection parts is realized. In one possible design, the power receiving component comprises a power receiving column, the power receiving column penetrates through one side inner wall of the butt joint groove and is fixedly connected with one side inner wall of the butt joint groove, and one end of the power receiving column, which is positioned in the butt joint groove, is set to be a spherical surface; one end of the electric connection column, which is positioned outside the butt joint card cover, is electrically connected with a wire holder through a connecting wire, and the wire holder is used for being electrically connected with an external wire; The wire collecting plate is fixedly sleeved on the connecting guide wire and fixedly assembled on one side of the fixing plate; The s