CN219226188U - Plastic case circuit breaker wiring structure - Google Patents
Plastic case circuit breaker wiring structure Download PDFInfo
- Publication number
- CN219226188U CN219226188U CN202320287266.3U CN202320287266U CN219226188U CN 219226188 U CN219226188 U CN 219226188U CN 202320287266 U CN202320287266 U CN 202320287266U CN 219226188 U CN219226188 U CN 219226188U
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- wiring
- pressing rod
- circuit breaker
- wire pressing
- wire
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- 238000003825 pressing Methods 0.000 claims abstract description 67
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 10
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a wiring structure of a molded case circuit breaker, which is characterized by comprising a circuit breaker body, wherein the top and the bottom of the circuit breaker body are respectively provided with a plurality of wiring parts, each wiring part is internally provided with a connecting hole and a wire pressing rod, the wire pressing rod is inserted into the connecting hole and can slide and rotate in a telescopic manner, the wiring parts are internally provided with wiring cavities, the inner walls of the wiring cavities are arranged on the periphery of the wire pressing rod in an arc-shaped structure, and the distance between the inner walls of the wiring cavities and the surface of the wire pressing rod is gradually reduced from outside to inside; one end of the line pressing rod extends out of the wiring part and is provided with a locking piece, the wiring part is provided with a locking groove matched with the locking piece, and the locking piece moves in or moves out of the locking groove in the telescopic sliding process of the line pressing rod. The utility model has the advantages of firmer and more stable wiring, difficult loosening and safer and more reliable connecting position.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a wiring structure of a molded case circuit breaker.
Background
The circuit breaker is a current switching device for distributing electric energy and protecting a power line, a motor and the like in real time, and can timely bear, close and break the current in a normal loop according to the states of normal, overload, short circuit, undervoltage and the like of the circuit, thereby ensuring the safe production. A molded case circuit breaker is one of the circuit breakers, which uses a plastic insulator as a housing of the device and also automatically cuts off the current when the actual current exceeds a trip set point. In the actual working process, the circuit board arranged in the molded case circuit breaker is an indispensable component for leakage protection, and the circuit board bears the functions of signal collection, signal amplification and signal intensity comparison of leakage current, so that the leakage current endangering the circuit or equipment can be effectively protected.
At present, the traditional wiring mode of the molded case circuit breaker in the prior art generally adopts a screw screwing mode to compress the conductive part and the wire so as to realize the wiring function, but the mode has some defects: firstly, screw loosening is easy to occur after the screw is screwed down in some vibration environments, so that the wiring is loosened, and further the problems of electric spark, poor contact and the like are easy to occur. Secondly, the conductive parts and the wiring positions of the traditional mode are exposed, impurities such as dust are easy to accumulate, and if other conductors contact the wiring positions, short circuit conditions are easy to occur. Therefore, there is a need for an improvement in the wiring structure of a molded case circuit breaker to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides the wiring structure of the molded case circuit breaker, which has the advantages of firmer, stable and difficult loosening wiring and safer and more reliable connecting part.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a moulded case circuit breaker wiring structure, includes the circuit breaker body, the top and the bottom of circuit breaker body respectively are provided with a plurality of wiring portion, its characterized in that: each wiring part is internally provided with a connecting hole and a wire pressing rod, the wire pressing rods are inserted into the connecting holes and can slide and rotate in a telescopic manner, each wiring part is internally provided with a wiring cavity, the inner wall of each wiring cavity is arranged on the periphery of each wire pressing rod in an arc-shaped structure, and the distance between the inner wall of each wiring cavity and the surface of each wire pressing rod is gradually reduced from outside to inside; one end of the line pressing rod extends out of the wiring part and is provided with a locking piece, the wiring part is provided with a locking groove matched with the locking piece, and the locking piece moves in or moves out of the locking groove in the telescopic sliding process of the line pressing rod.
The utility model is further provided with: and a reset spring is abutted between the connecting hole and the line pressing rod and used for ejecting the line pressing rod upwards so that the locking piece moves into the locking groove and is kept.
The utility model is further provided with: the inner wall of the side, with smaller distance between the wiring cavity and the wire pressing rod, is provided with a conductive plate, and the conductive plate is electrically connected with the internal circuit of the circuit breaker body.
The utility model is further provided with: the periphery of the line ball pole protrusion is provided with a plurality of extrusion arriss, and a plurality of extrusion arriss are central symmetry structure setting.
The utility model is further provided with: the locking grooves are arranged in a plurality.
The utility model is further provided with: the end part of the wire pressing rod extending out of the wiring part is provided with a groove part.
The utility model is further provided with: the groove part is arranged in a cross shape or a straight shape.
In summary, the utility model has the following beneficial effects:
compared with the prior art, the wire connecting part is provided with the wire connecting cavity and the wire pressing rod, wherein the wire pressing rod can perform up-and-down telescopic sliding and circumferential rotation, the circumferential rotation is locked through the locking piece and the locking groove, when the wire pressing rod is pressed down, the locking piece on the wire pressing rod moves out of the locking groove, at the moment, the wire pressing rod can be rotated, when the wire pressing rod is not pressed down, the wire pressing rod rises under the action of the reset spring, and the locking piece moves into the locking groove to realize the locking function; through above-mentioned locking groove, locking piece and reset spring's cooperation, the line ball pole can keep locking state under the condition such as vibrations and can not appear not hard up, has effectively solved the problem that appears not hard up easily among the prior art.
Meanwhile, when the wire is connected, the external wire is inserted into the wire connecting cavity, and then the wire pressing rod is rotated, at the moment, the extrusion edge on the wire pressing rod can drive the wire to move towards the inside of the wire connecting cavity, and the inner wall of the wire connecting cavity is of an arc-shaped structure from outside to inside and gradually approaches the wire pressing rod, so that the wire forms an arc-shaped structure in the entering process and is pressed between the inner wall of the wire connecting cavity and the wire pressing rod and is electrically connected with the conductive plate.
Drawings
FIG. 1 is a schematic view of the overall external structure of the present embodiment;
fig. 2 is a partially enlarged schematic view of the wiring portion of the present embodiment;
FIG. 3 is a schematic view of the internal structure of the wiring cavity and the wire pressing rod in this embodiment;
fig. 4 is a schematic view of a cross-sectional structure of a wire pressing rod according to the present embodiment.
Reference numerals: 1. a circuit breaker body; 2. a wiring section; 3. a wire pressing rod; 4. a wiring cavity; 5. a connection hole; 6. a return spring; 7. a locking piece; 8. a locking groove; 9. extruding the edges; 10. a conductive plate; 11. a groove portion.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a wiring structure of a molded case circuit breaker, as shown in fig. 1-4, comprising a circuit breaker body 1, wherein the top and the bottom of the circuit breaker body 1 are respectively provided with a plurality of wiring parts 2, and the wiring parts 2 are used for connecting with external wires (not shown in the figure); wherein, set up connecting hole 5 and line ball pole 3 in every wiring portion 2, line ball pole 3 inserts in connecting hole 5 and can stretch out and draw back sliding and rotate wherein, please refer to fig. 3, be provided with wiring chamber 4 in the wiring portion 2, the inner wall in wiring chamber 4 is the arc structure setting in the week side of line ball pole 3, the distance in wiring chamber 4 inner wall and line ball pole 3 surface diminishes gradually from outside to inside. Referring to fig. 3, with the above-described structure, the wire is inserted into the wire connecting chamber 4 from the outside, and is driven to go deep into the wire connecting chamber 4 with the rotation of the wire pressing rod 3, so that the wire is firmly pressed between the wire pressing rod 3 and the inner wall of the wire connecting chamber 4; meanwhile, the conducting plate 10 is arranged on the inner wall of the side, with the smaller distance between the wiring cavity 2 and the wire pressing rod 3, of the wiring cavity, so that the electric wire is pressed on the conducting plate 10 and is electrically connected with the internal circuit of the circuit breaker body 1. And in order to be more firm in connection, the distance between the inner wall of the part of the wiring cavity behind the conductive plate 10 and the wire pressing rod 3 can be increased, so that the wires can go deep into the wiring cavity 4 after passing through the conductive plate 10, and the connection is more firm.
Further, referring to fig. 2 and 4, one end of the wire pressing rod 3 extends out of the wire connecting portion 2 and is provided with a locking piece 7, the wire connecting portion 2 is provided with a locking groove 8 matched with the locking piece 7, the locking piece 7 moves into or out of the locking groove 8 in the telescopic sliding process of the wire pressing rod 3, a reset spring 6 is abutted between the connecting hole 5 and the wire pressing rod 3, and the reset spring 6 is used for ejecting the wire pressing rod 3 upwards, so that the locking piece 7 moves into the locking groove 8 and is kept. Through above-mentioned structure, line ball pole 3 can upwards move under reset spring 6's effect when not receiving external force pushing down to make locking piece 7 card go into locking groove 8, line ball pole 3 is locked this moment, can't rotate, if the electric wire has been connected in wiring chamber 4, then the electric wire will be compressed tightly in the wiring chamber all the time, compares the screw and compresses tightly, and the mode of this embodiment is difficult for appearing not hard up even under the vibrations condition yet, connects more reliably. When the line pressing rod 3 needs to be rotated, the line pressing rod 3 can be rotated only by pressing the line pressing rod 3 downwards and enabling the locking piece 7 to be separated from the locking groove 8.
Further, referring to fig. 3, the periphery protrusion of the wire pressing rod 3 is provided with a plurality of extrusion edges 9, and the extrusion edges 9 are arranged in a central symmetry structure, so that the extrusion edges 9 can further play a role in pressing, and the extrusion edges 9 can better play a role in fastening when the wire pressing rod 3 is rotated to drive the wire to move and extrude the wire, so that the wire can be pressed more tightly.
Further, referring to fig. 2, the locking grooves 8 are provided in a plurality, which has the advantage that the wire pressing rod 3 can be provided with the corresponding locking groove 8 to lock the locking piece 7 when rotating to a proper position, and even if the locking piece 7 does not just correspond to the locking groove 8, the former or the latter locking groove 8 can be preferentially selected to be matched, so long as the wire can be clamped. Of course, the number of the locking grooves 8 provided in fig. 2 is six, but in actual cases, the greater the number of the locking grooves, the greater the choice of which locking groove 8 the locking piece 7 is matched with, the less the tightness of influence, so the embodiment does not have an excessive limitation on the number of the locking grooves 8.
Further, the end portion of the wire pressing rod 3 extending out of the wire connecting portion 2 is provided with a groove portion 11, the groove portion 11 is in a cross shape or a linear shape, referring to fig. 2, the groove portion 11 in fig. 2 is in a cross shape, so that the wire pressing rod 3 can be rotated by means of a cross screwdriver, the groove portion 11 can be in a linear shape, the wire pressing rod can be conveniently used by a linear screwdriver, and different groove shapes, such as a hexagon or a triangle, can be further arranged, and the wire pressing rod can be conveniently used by different tools.
Meanwhile, the connection part of the conducting plate and the electric wire is arranged in the wiring cavity 4, so that the conducting plate and the electric wire cannot contact with foreign matters such as external dust, and connection is more reliable. In addition, compared with the existing pressing mode (that is, the mode of pressing the electric wire up and down by adopting the screw and the pressing plate), the mode of pressing the electric wire by rotating the pressing rod 3 can further drive the electric wire to wind on the pressing rod 3, so that the electric wire generates an arc-shaped structure similar to a hook, and the electric wire has the advantages that when the electric wire is pulled outwards, the electric wire not only needs to overcome the friction force generated after extrusion, but also needs to overcome the deformation force required by straightening the arc-shaped structure, and therefore, the connection of the electric wire of the embodiment is firmer and safer and more reliable to use.
The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The utility model provides a moulded case circuit breaker wiring structure, includes circuit breaker body (1), the top and the bottom of circuit breaker body (1) respectively are provided with a plurality of wiring portion (2), its characterized in that: each wiring part (2) is internally provided with a connecting hole (5) and a wire pressing rod (3), the wire pressing rod (3) is inserted into the connecting hole (5) and can slide and rotate in a telescopic manner, each wiring part (2) is internally provided with a wiring cavity (4), the inner wall of each wiring cavity (4) is arranged on the periphery of the wire pressing rod (3) in an arc-shaped structure, and the distance between the inner wall of each wiring cavity (4) and the surface of the wire pressing rod (3) is gradually reduced from outside to inside; one end of the wire pressing rod (3) extends out of the wiring part (2) and is provided with a locking piece (7), a locking groove (8) matched with the locking piece (7) is formed in the wiring part (2), and the locking piece (7) moves into or moves out of the locking groove (8) in the telescopic sliding process of the wire pressing rod (3).
2. The molded case circuit breaker wiring structure of claim 1, wherein: a reset spring (6) is abutted between the connecting hole (5) and the wire pressing rod (3), and the reset spring (6) is used for ejecting the wire pressing rod (3) upwards so that the locking piece (7) moves into the locking groove (8) and is kept.
3. The molded case circuit breaker wiring structure of claim 1, wherein: the wiring cavity (4) is provided with a conducting plate (10) on the inner wall of one side with smaller distance from the wire pressing rod (3), and the conducting plate (10) is electrically connected with the internal circuit of the circuit breaker body (1).
4. The molded case circuit breaker wiring structure of claim 1, wherein: the periphery of the line pressing rod (3) is provided with a plurality of extrusion edges (9) in a protruding mode, and the extrusion edges (9) are arranged in a central symmetry structure.
5. The molded case circuit breaker wiring structure of claim 1, wherein: the locking grooves (8) are arranged in a plurality.
6. The molded case circuit breaker wiring structure of claim 1, wherein: the end part of the wire pressing rod (3) extending out of the wiring part (2) is provided with a groove part (11).
7. The molded case circuit breaker wiring structure of claim 6, wherein: the groove part (11) is arranged in a cross shape or a straight shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320287266.3U CN219226188U (en) | 2023-02-13 | 2023-02-13 | Plastic case circuit breaker wiring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320287266.3U CN219226188U (en) | 2023-02-13 | 2023-02-13 | Plastic case circuit breaker wiring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219226188U true CN219226188U (en) | 2023-06-20 |
Family
ID=86740696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320287266.3U Active CN219226188U (en) | 2023-02-13 | 2023-02-13 | Plastic case circuit breaker wiring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219226188U (en) |
-
2023
- 2023-02-13 CN CN202320287266.3U patent/CN219226188U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 5th Floor, Building 14, No. 281, Weiwu Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, 325000 Patentee after: Chengxi Electric Group Co.,Ltd. Country or region after: China Address before: 5th Floor, Building 14, No. 281, Weiwu Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, 325000 Patentee before: Chengxi Electric Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |