CN112750670A - Wiring device of plug-in circuit breaker - Google Patents
Wiring device of plug-in circuit breaker Download PDFInfo
- Publication number
- CN112750670A CN112750670A CN202110261269.5A CN202110261269A CN112750670A CN 112750670 A CN112750670 A CN 112750670A CN 202110261269 A CN202110261269 A CN 202110261269A CN 112750670 A CN112750670 A CN 112750670A
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- China
- Prior art keywords
- lifting block
- circuit breaker
- plug
- fastening screw
- block
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- 238000000034 method Methods 0.000 claims description 2
- 241000561734 Celosia cristata Species 0.000 claims 2
- 210000001520 comb Anatomy 0.000 claims 2
- 238000002788 crimping Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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Abstract
A wiring device of a plug-in circuit breaker comprises a plug-in circuit breaker, a fastening screw, a slide block, a lifting block, a connecting plate and a shell provided with the connecting plate and the slide block, the sliding block is arranged at the upper part of the lifting block, the fastening screw penetrates through the sliding block and is meshed with the internal thread of the lifting block, a wiring cavity externally connected with a lead is arranged between the sliding block and the connecting plate, when wiring is needed, the fastening screw is screwed in clockwise, the lifting block engaged with the lifting block retreats, the wedge-shaped inclined plane at the upper part of the lifting block ascends along with the lifting block, the sliding block matched with the upper part of the lifting block is pushed to ascend, so that the external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is firmly clamped by the pressure for preventing the lead from sliding out, the wiring device of the plug-in circuit breaker avoids using an elastic element which is easy to damage, and has simple and compact structure and stable and reliable work.
Description
Technical Field
The invention relates to a low-voltage electrical appliance accessory, in particular to a wiring device of a plug-in circuit breaker.
Background
Along with the rapid development of the electric power and communication technology in China, particularly the application of the 5G network technology, increasingly high requirements are provided for the practicability, safety and reliability of terminal electrical equipment such as a circuit breaker, the traditional circuit breaker can not meet the requirements far away, in the continuous research and development, the circuit breaker in China not only reaches a new level in the aspects of miniaturization, intellectualization, reliability and the like, but also has a plurality of brand-new designs in structure, for example, the circuit breaker can be conveniently plugged and unplugged for use like a common electric plug, the circuit breaker can be locked in a stable working state in an installation position, meanwhile, the wiring direction of the circuit breaker and the wiring direction of an external lead are in the same plane, the circuit breaker is called a plug-in type circuit breaker, the wiring device of the circuit breaker is various at present, and the invention patent with the application publication number of CN 111785578A discloses a typical composite wiring terminal, the structure has the advantages that the problem that the wiring direction of the circuit breaker is different from the entering direction of an external lead is solved by adopting the fastening screw, the sliding block and the spring piece, but the structure has an important defect that when the fastening screw is screwed in to press the external lead tightly, the spring piece applies a torque in the lead sliding-out direction to the external lead at the same time, so that the external lead is easy to slide out and fall off from a wiring cavity, and meanwhile, due to the limitation of materials, the spring piece is easy to generate elastic deformation and even damage, and the working performance is not stable enough.
Disclosure of Invention
In order to overcome the defects that an external lead of a plug-in circuit breaker wiring device is easy to slide out and fall off and a spring piece is made of materials, the technical scheme adopted by the invention is as follows:
the utility model provides a plug-in circuit breaker's termination, includes plug-in circuit breaker, fastening screw, slider, carries and draws the piece, the connecting plate and set up their shell, slider and carry and draw the piece and all be provided with the inclined plane, the inclined plane agree with each other, the slider on, carry and draw the piece under, fastening screw pass the slider, with the internal thread engagement who draws the piece slider and connecting plate between, the wiring chamber of external conductor has been set up.
The sliding block is further arranged to be a right triangle, the upper right-angle surface is a pressing surface of an external lead, the lower inclined side surface is matched with the wedge-shaped inclined surface of the pulling block, and a hollow channel is formed inside the hollow channel so that a fastening screw can pass through the hollow channel.
The lifting block is arranged to be wedge-shaped, the upper part of the lifting block is a wedge-shaped inclined plane, the bottom of the lifting block is a sliding plane, the middle of the lifting block is provided with internal threads, the internal threads are meshed with the fastening screw, when the fastening screw is screwed clockwise, the lifting block retreats, and when the fastening screw is withdrawn anticlockwise, the lifting block advances.
The connecting plate is set to be rectangular, one end of the connecting plate is provided with a connecting hole connected with an internal part of the circuit breaker, the lower part of the connecting plate is provided with a sawtooth-shaped convex surface, and the sawtooth-shaped convex surface is an upper pressing surface of an external lead.
The circuit breaker is further arranged into two poles, a wiring cavity of an external wire of the circuit breaker is arranged in the middle of the front side of each pole, fastening screws are arranged on the lower portion of the wiring cavity, the wiring cavity and the fastening screws of the two poles are arranged in parallel, and arc isolating plates are arranged between the two poles.
The wiring device of the circuit breaker is operated as follows: when the wire is connected, the fastening screw is screwed clockwise, the lifting block engaged with the fastening screw descends and retreats, the wedge-shaped inclined surface at the upper part of the lifting block ascends along with the fastening screw, the sliding block matched with the upper part of the lifting block is pushed to ascend, and an external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is firmly clamped under the pressure of preventing the lead from sliding out. When the external lead needs to be unloaded, the binding screw rotates anticlockwise, the lifting block meshed with the binding screw advances, the wedge-shaped inclined plane at the upper part of the lifting block descends, the sliding block matched with the upper part of the lifting block also descends, and the external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is loosened to unload the external lead.
The circuit breaker wiring device with the structure has the advantages that:
the wiring device is provided with the fastening screw, the sliding block, the lifting block, the connecting plate and other parts, the structure is simple and compact, when the fastening screw for wiring is screwed in, the lifting block rises, the wedge-shaped inclined plane pushes the sliding block matched with the lifting block to rise, and an external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is firmly clamped under the pressure of preventing the lead from sliding out. Because the arc isolating plate is arranged between the two poles of the circuit breaker, the short circuit of the electric arc of the two poles can be avoided, the assembly and disassembly of the external leads of the two poles are convenient, the device has a simple structure, the use of an elastic element which is easy to damage is avoided, and the work is stable and reliable.
Drawings
Fig. 1 is an overall structural view of an application of the present invention in a plug-in type circuit breaker.
Fig. 2 is an overall configuration diagram of the wiring device.
Fig. 3 is a front view of fig. 2.
FIG. 4 is a diagram of a propulsion system configuration.
Fig. 5 is a view showing a structure of a slider.
FIG. 6 is a drawing block diagram.
Fig. 7 is a diagram showing a structure of a connection plate.
Detailed Description
It should be noted that the terms "upper", "middle", "lower", "end", "front", "rear", "side", and the like in the description of the present invention, which indicate positional relationships, are based on the positional relationships shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
A wiring device of a circuit breaker is disclosed, as shown in fig. 1-4, comprising a plug-in circuit breaker, a fastening screw 1, a sliding block 2, a pulling block 3, a connecting plate 4, a shell 5 and a shell 6 which are arranged at two poles of the fastening screw and the pulling block, wherein the sliding block 2 is arranged at the upper part of the pulling block 3, the fastening screw 1 passes through the sliding block 2 and is meshed with an internal thread 302 of the pulling block 3, and a wiring cavity 501 of an external lead is arranged between the sliding block 2 and the connecting plate 4.
It is further provided, as shown in fig. 5, that the sliding block 2 is configured as a right triangle, the upper right-angled surface 201 is a lower pressing surface for externally connecting a wire, the lower inclined surface 202 is engaged with the wedge-shaped inclined surface 303 of the pulling block 3, and a hollow channel 203 is formed inside the sliding block, so that the fastening screw 1 can pass through the hollow channel 203.
Further, as shown in fig. 6, the pulling block 3 is wedge-shaped, the upper part is a wedge-shaped inclined plane 303, the bottom part is a sliding plane 301, the middle part is provided with an internal thread 302, the internal thread 302 is engaged with the fastening screw 1, when the fastening screw 1 is screwed clockwise, the pulling block 3 will retreat, and when the fastening screw 1 is withdrawn anticlockwise, the pulling block 3 will advance.
In a further arrangement, as shown in fig. 7, the connecting plate 4 is rectangular, one end of the connecting plate is provided with a connecting hole 401 connected with an internal component of the plug-in circuit breaker, the lower part of the connecting plate is provided with a saw-toothed convex surface 402, and the saw-toothed convex surface 402 is an upper compression joint surface of an external lead.
Further setting, as shown in fig. 1, the plug-in circuit breaker is set as two poles of the shell 5 and the shell 6, a wiring cavity 501 of an external lead of the plug-in circuit breaker is arranged in the middle of the front side of one pole of the shell 5, a fastening screw 1 is arranged on the lower portion of the wiring cavity 501, a wiring cavity 601 of an external lead of the plug-in circuit breaker is arranged in the middle of the front side of one pole of the shell 6, a fastening screw 7 is arranged on the lower portion of the wiring cavity 601, the wiring cavities 501 and 601 of the two poles and the fastening screws 1 and 7 are arranged in parallel, and an arc isolating plate 8 is arranged between the two poles.
The working procedure of the wiring device of the circuit breaker is as follows:
when the wire is connected, the fastening screw 1 is screwed clockwise, the lifting block 3 engaged with the fastening screw retreats, the wedge-shaped inclined surface 303 at the upper part of the lifting block 3 ascends along with the fastening screw, the sliding block 2 matched with the upper part of the lifting block 3 is pushed to ascend, and the external lead clamped between the upper pressing surface 402 of the connecting plate and the lower pressing surface 201 of the sliding block is firmly clamped by the pressure for preventing the lead from sliding out. When the external lead needs to be unloaded, the binding screw 1 rotates anticlockwise, the lifting block 3 engaged with the binding screw advances, the wedge-shaped inclined plane 303 at the upper part of the lifting block 3 descends along with the binding screw, the sliding block 2 engaged with the upper part of the lifting block 3 descends, and the external lead clamped between the upper pressing surface 402 of the connecting plate and the lower pressing surface 201 of the sliding block is loosened to unload the external lead.
It should be noted that: the foregoing examples are given by way of illustration only, and not by way of limitation, of the present invention, and it will be apparent to those of ordinary skill in the art that variations and modifications in other variations and embodiments may be made based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and obvious variations and modifications can be made without departing from the scope of the present invention.
Claims (7)
1. The wiring device of the plug-in circuit breaker comprises plug-in circuit breakers, wherein the plug-in circuit breakers are arranged into two poles, a wiring cavity is arranged in the middle of the front side of each pole, a fastening screw is arranged at the lower part of the wiring cavity, and the wiring device is arranged in the wiring cavity;
the method is characterized in that:
the wiring cavity of the two poles of the plug-in circuit breaker and the fastening screw are arranged in parallel, and an arc isolating plate is arranged between the two poles;
the wiring device comprises a fastening screw, a sliding block, a lifting block and a connecting plate;
the slider and the lifting block are both provided with inclined planes which are matched with each other, the slider is arranged on the upper part, the lifting block is arranged on the lower part, the fastening screw penetrates through the slider and is meshed with the internal thread of the lifting block, and a wiring cavity for externally connecting a lead is arranged between the slider and the connecting plate.
2. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
the slider set up to right triangle, the upper portion right-angle face be external wire's the face of pressing down, the lower part sloping face agrees with mutually with the tapered inclined plane of carrying the pull block, inside is hollow passageway to fastening screw passes therethrough.
3. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
the lifting block is wedge-shaped, the upper part of the lifting block is a wedge-shaped inclined plane, the bottom of the lifting block is a sliding plane, the middle part of the lifting block is provided with internal threads, the internal threads are meshed with the fastening screw, when the fastening screw is screwed in clockwise, the lifting block retreats, and when the fastening screw is withdrawn anticlockwise, the lifting block advances.
4. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
the connecting plate set up to the rectangle, one end is provided with the connecting hole of being connected with the inside spare part of circuit breaker, the lower part is provided with the cockscomb structure protruding face, the cockscomb structure protruding face be external wire's last crimping face.
5. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
when the fastening screw is screwed clockwise, the lifting block retreats, the wedge-shaped inclined surface at the upper part of the lifting block pushes the sliding block matched with the lifting block to ascend, so that an external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is firmly clamped by the pressure for preventing the lead from sliding out.
6. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
when the fastening screw is withdrawn anticlockwise, the lifting block moves forwards, the wedge-shaped inclined surface at the upper part of the lifting block descends, and the sliding block matched with the inclined surface also descends, so that an external lead clamped between the upper pressing surface of the connecting plate and the lower pressing surface of the sliding block is loosened and discharged.
7. The wiring device of the plug-in type circuit breaker according to claim 1, wherein:
the plug-in circuit breaker comprises a wiring device of the plug-in circuit breaker according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261269.5A CN112750670A (en) | 2021-03-10 | 2021-03-10 | Wiring device of plug-in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261269.5A CN112750670A (en) | 2021-03-10 | 2021-03-10 | Wiring device of plug-in circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112750670A true CN112750670A (en) | 2021-05-04 |
Family
ID=75651639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110261269.5A Pending CN112750670A (en) | 2021-03-10 | 2021-03-10 | Wiring device of plug-in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112750670A (en) |
-
2021
- 2021-03-10 CN CN202110261269.5A patent/CN112750670A/en active Pending
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