CN215869206U - Binding post and circuit breaker - Google Patents
Binding post and circuit breaker Download PDFInfo
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- CN215869206U CN215869206U CN202120790059.0U CN202120790059U CN215869206U CN 215869206 U CN215869206 U CN 215869206U CN 202120790059 U CN202120790059 U CN 202120790059U CN 215869206 U CN215869206 U CN 215869206U
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- screw
- line segment
- wiring board
- wire
- circuit breaker
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Abstract
A connecting terminal and a circuit breaker are provided, the connecting terminal comprises a wiring board, a first connecting mechanism and a second connecting mechanism which are used for fixing a first external lead and a second external lead respectively, the first connecting mechanism and the second connecting mechanism respectively comprise a first screw and a second screw, the first external lead and the second external lead can be fixed on the wiring board respectively by rotating the first screw and the second screw, the first screw and the second screw are coaxially arranged, the second screw is arranged above the first screw, the second screw is provided with an avoiding channel, the first screw can be rotated by the avoiding channel, the screwdriver can pass through the avoiding channel to rotate the first screw, the first screw and the second screw can fix the first external lead and the second external lead respectively, and the first external lead and the second external lead can be connected more reliably in a separated mode, the structural limitation on the second external lead can be relaxed to be suitable for second external leads of various specifications and shapes.
Description
Technical Field
The utility model relates to the field of low-voltage electrical appliances, in particular to a wiring terminal and a circuit breaker.
Background
A switching device such as a circuit breaker is generally provided with a connection terminal, and after the switching device is connected to a line through the connection terminal, the line can be controlled, for example, the circuit breaker can switch on and off load power of electrical equipment when the line is in normal operation, and can switch off the line when the line is in a fault. However, the bus bar of the existing circuit breaker needs to share one wiring screw with the external line conductor for wiring, so that the structure of the bus bar is limited, wiring difficulty is high, the bus bar and the external line conductor need to be ensured to be inserted in place, and the bus bar and the external line conductor are fixed together by rotating the wiring screw.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a connecting terminal with a second external lead and a first external lead which are separately connected.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a wiring terminal, its includes the wiring board to and be used for fixed first outside wire and the first coupling mechanism and the second coupling mechanism of second outside wire respectively, first coupling mechanism and second coupling mechanism include first screw and second screw respectively, rotate first screw and second screw and can fix first outside wire and second outside wire on the wiring board respectively, first screw and the coaxial setting of second screw, and the second screw setting is in the top of first screw, the second screw is equipped with dodges the passageway, can rotate first screw through dodging the passageway.
Preferably, the second connecting mechanism further comprises a terminal nut, a second threaded hole in threaded fit with the second screw is formed in the terminal nut, the second screw is close to and far away from the wiring board along the direction of the second threaded hole when rotating, and the second screw can press the second external lead on the wiring board to be fixed when being close to the wiring board.
Preferably, the second screw is of a cylindrical structure, the avoiding channel is arranged on the inner side of the second screw, and threads are arranged on the outer side of the second screw.
Preferably, the top end of the second screw is circular, and at least one pair of second operation grooves is formed in the end face of the top of the second screw and used for rotating the second screw.
Preferably, the periphery of the bottom of the first screw is provided with threads, the top of the first screw is provided with a first operating groove matched with the screwdriver, and the top of the first screw is inserted into the avoiding channel.
Preferably, the second screw is provided with a limiting boss protruding into the avoidance channel, and the limiting boss is used for blocking the first screw.
Preferably, the wiring board include with first coupling mechanism complex down the line segment to and relative setting down the line segment top with second coupling mechanism complex goes up the line segment, and the one end of line segment is equipped with the outer wiring section down, and the outer wiring section is connected between the one end of line segment and last line segment down, and the other end of line segment is equipped with the inner wiring section down, and the inner wiring section is used for connecting switch electrical apparatus, be equipped with on last line segment be used for with the hole of dodging that first screw corresponds.
Preferably, first coupling mechanism is still including the connection terminal that is frame-shaped structure, and the movably cover of connection terminal is on the lower line segment of wiring board, and the top of connection terminal is equipped with the first screw hole with first screw thread fit, and first screw passes behind the first screw hole and is stopped by the top side of lower line segment, and first screw can drive the connection terminal when rotating and remove, and the bottom of connection terminal can compress tightly first external conductor in the bottom side of lower line segment when being close to the wiring board fixed.
The circuit breaker is characterized in that at least one group of wiring terminals is arranged at the wire outlet end and/or the wire inlet end of the circuit breaker.
Preferably, the casing of circuit breaker is equipped with and is used for fixed mounting binding post's binding nut's mounting groove, and the casing of circuit breaker corresponds to be equipped with the handle hole that is used for dodging the screwdriver in the top of second screw, and the internal diameter of handle hole is less than the external diameter of second screw.
According to the wiring terminal, the avoidance channel for avoiding the screwdriver is arranged on the second screw, so that the screwdriver can penetrate through the avoidance channel to rotate the first screw, the first screw and the second screw are used for fixing the first external lead and the second external lead respectively, and the first external lead and the second external lead can be separately wired, so that the torque generated when the first screw and the second screw are rotated and screwed is adjusted, the first screw and the second screw can be in more reliable contact with the wiring board respectively, the structural limitation on the second external lead can be relaxed, the wiring terminal is suitable for the second external leads with various specifications and shapes, and the second external lead can be more flexibly used. In addition, through with first screw and the coaxial setting of second screw, can reduce the whole space that radially occupies of binding post, and then reduce the structure influence to current switching apparatus, can promote on the basis that does not change current switching apparatus structure.
In addition, the top of the first screw is not provided with threads all around, the top of the first screw is inserted into the avoidance channel of the second screw, the space occupied by the first screw and the second screw in the axial direction can be reduced, the structural influence on the existing switching device is further reduced, and the popularization is facilitated.
In addition, the top of second screw is equipped with to dodging the inboard bellied spacing boss of passageway, and spacing boss is used for blockking first screw in dodging the passageway, avoids first screw to drop behind dodging the passageway.
Drawings
Fig. 1 is a schematic view of the structure of the connection terminal of the present invention;
fig. 2 is a cross-sectional view of a terminal of the present invention;
FIG. 3 is a schematic view of a second screw of the present invention;
FIG. 4 is a schematic view of a first screw of the present invention;
fig. 5 is a schematic view of the terminal of the present invention shown in an unthreaded configuration;
fig. 6 is a schematic view of the terminal of the present invention when tightened;
fig. 7 is a schematic structural view of the housing of the present invention.
Detailed Description
The following description will further describe embodiments of the connection terminal according to the present invention with reference to the examples shown in fig. 1 to 7. The connection terminal of the present invention is not limited to the description of the following embodiments.
As shown in fig. 1 to 4, the connection terminal of the present invention includes a connection board 300 for connecting a main circuit of a switching apparatus, and a first connection mechanism 100 and a second connection mechanism 200 for fixing a first external lead 1 and a second external lead 2, respectively, the first connection mechanism 100 and the second connection mechanism 200 are driven by a first screw 110 and a second screw 210, respectively, the first external lead 1 and the second external lead 2 can be fixed on the connection board 300 by rotating the first screw 110 and the second screw 210, respectively, the first screw 110 and the second screw 210 are coaxially disposed, and the second screw 210 is disposed above the first screw 110, the second screw 210 is provided with an escape passage 211 for escaping a screwdriver (not shown in the figure) through which the screwdriver can rotate the first screw 110.
According to the wiring terminal, the avoidance channel 211 for avoiding the screwdriver is arranged on the second screw 210, so that the screwdriver can penetrate through the avoidance channel 211 to rotate the first screw 110, the first screw 110 and the second screw 210 are used for fixing the first external lead 1 and the second external lead 2 respectively, and the first external lead 1 and the second external lead 2 can be separately wired, so that the torque during respective rotating and tightening can be adjusted, the first external lead 1 and the second external lead 2 can be in more reliable contact with the wiring board 300, the structural limitation on the second external lead 2 can be relaxed, the wiring terminal is suitable for the second external leads 2 with various specifications and shapes, and the second external lead 2 can be more flexible when being used. In addition, through with first screw 110 and the coaxial setting of second screw 210, can reduce the whole radial space that occupies of binding post, and then reduce the structure influence to current switching apparatus, can promote on the basis that does not change current switching apparatus structure. In this embodiment, the first external wire is an insulated wire, and the second external wire 2 is a bus bar.
As shown in fig. 5-6, the switching apparatus of this embodiment is a two-pole circuit breaker, the two-pole circuit breaker includes two-pole circuit breaker units 3, two ends of each one-pole circuit breaker unit 3 are respectively provided with a connection terminal, each one-pole circuit breaker unit 3 respectively includes a housing 4 and a main loop arranged in the respective housing 4, the main loop of each one-pole circuit breaker unit 3 is respectively connected with the first external conductor 1 and/or the second external conductor 2 through the connection terminals at the two ends, and each one-pole circuit breaker unit 3 can be controlled to be switched on and off from the respective main loop through switching on and off. The number of poles of the circuit breaker is not limited in this embodiment, the circuit breaker may be a single pole, a three pole, a four pole, or the like, the connection terminal of the present invention may be provided in only one of the pole circuit breaker units 3, or the connection terminals of the present invention may be provided in all the pole circuit breaker units 3. In addition, the wiring terminal can be used for switch electric appliances except circuit breakers, such as relays, contactors, auxiliary modules used for splicing and the like.
As shown in fig. 1-2, the wiring board 300 of the present embodiment includes a lower wiring segment 330 engaged with the first connection mechanism 100, and an upper wiring segment 310 oppositely disposed above the lower wiring segment 330 and engaged with the second connection mechanism 200, wherein one end of the lower wiring segment 330 is provided with an outer wiring segment 320, the outer wiring segment 320 is connected between the lower wiring segment 330 and one end of the upper wiring segment 310, the other end of the lower wiring segment 330 is provided with an inner wiring segment 340, the inner wiring segment 340 is used for connecting a main circuit of a switching apparatus, an avoidance hole 311 corresponding to the first screw 110 is provided on the upper wiring segment 310, and the first connection mechanism 100 and the second connection mechanism 200 can respectively press the first external conductor 1 and the second external conductor 2 onto the lower wiring segment 330 and the upper wiring segment 310.
As shown in fig. 1 to 2, the first connecting mechanism 100 of the present embodiment drives the wire holder 120 by the first screw 110, and then presses the first external lead 1 against the wiring board 300 by the wire holder 120 to be fixed. Specifically, the first connection mechanism 100 includes a first screw 110 and a wire holder 120 having a frame structure, the wire holder 120 is movably sleeved on the lower wire section 330 of the wiring board 300, a first threaded hole 121 in threaded fit with the first screw 110 is formed in the top of the wire holder 120, the first screw 110 penetrates through the first threaded hole 121 and then is in fit with the top side of the lower wire section 330, the first screw 110 can be blocked by the lower wire section 330 when rotating, so that the first screw 110 drives the wire holder 120 to move through the first threaded hole 121, when the bottom of the wire holder 120 is close to the lower wire section 330, the first external lead 1 can be pressed on the bottom side of the lower wire section 330 for fixation, and when the bottom of the wire holder 120 is far away from the lower wire section 330, the first external lead 1 can be loosened. It is understood that the first connecting mechanism 100 may not be provided with the wire holder 120, and the first external lead 1 may be fixed by moving the first screw 110, and the structure of the first connecting mechanism 100 is not particularly limited.
As shown in fig. 1-2, the second connection mechanism 200 of the present embodiment directly presses and fixes the bus bar to the wiring board 300 by the second screw 210. Specifically, the second connection mechanism 200 includes a second screw 210 and a terminal nut 220, the terminal nut 220 is fixedly mounted in a mounting groove 5 (fig. 7) formed in a housing 4 of the circuit breaker, a second threaded hole 221 in threaded fit with the second screw 210 is formed in the terminal nut 220, the second screw 210 moves along the direction of the second threaded hole 221 when rotating, when the second screw 210 is close to the upper connection section 310, the second external lead 2 can be pressed onto the upper connection section 310, and when the second screw 210 is far away from the upper connection section 310, the second external lead 2 can be loosened.
It is understood that the second connection mechanism 200 may not be provided with the terminal nut 220, and a second threaded hole 221 matched with the second screw 210 may be directly processed on the housing 4 of the switching apparatus, so that the second screw 210 is directly matched with the housing 4 of the switching apparatus. In addition, the terminal nut 220 may be fixedly mounted on the housing 4 of the switching device in other manners, and is not limited to the form of the mounting groove 5, and may also be formed by integral injection molding, and the like, which is not limited herein.
As shown in fig. 3, the second screw 210 of this embodiment is a cylindrical structure, the avoiding channel 211 is disposed in the middle of the second screw 210, a thread is disposed on the outer side of the second screw 210, the end surface of the top of the second screw 210 is circular, at least one pair of second operation grooves 212 matched with a screwdriver is disposed on the end surface of the top of the second screw 210, a connecting line between the centers of each pair of second operation grooves 212 passes through the axis of the avoiding channel 211, the housing 4 of the circuit breaker is provided with an operation hole 6 for avoiding the screwdriver above the second screw 210, a "one" -shaped screwdriver bit can pass through the operation hole 6 and then insert both sides into the pair of second operation grooves 212, the "one" -shaped screwdriver bit can directly drive the second screw 210 to rotate, and the second screw 210 can be kept balanced by the symmetrical second operation grooves 212. This embodiment includes two pairs of second operating slots 212, which can also be operated using a cross-shaped screwdriver. Of course, the shape and number of the second operating slots 212 can be adjusted to match different shapes of screwdrivers, and all that is within the scope of the present invention.
As shown in fig. 4, a first operation slot 112 in a cross-shaped structure is disposed on an end surface of a top side of the first screw 110, a cross-shaped screwdriver can be inserted into the first operation slot 112 to drive the first screw 110 to rotate, threads are disposed around a bottom of the first screw 110, but no threads are disposed around a top of the first screw 110, and the top of the first screw 110 is inserted into an avoidance channel 211 of the second screw 210, so that not only can a space occupied by the first screw 110 and the second screw 210 in an axial direction be reduced, but also structural influence on an existing switching apparatus is further reduced, which is more convenient to popularize, and it can be ensured that the first screw 110 and the second screw 210 have sufficient structural strength and are not easily damaged.
Further, the top of the second screw 210 is provided with a limiting boss 213 protruding towards the inside of the avoidance channel 211, the limiting boss 213 may be one or more, the embodiment includes four limiting bosses 213 uniformly distributed in the circumferential direction, and the limiting boss 213 is used for blocking the first screw 110 in the avoidance channel 211, so as to prevent the first screw 110 from falling off after passing through the avoidance channel 211. Of course, the first screw 110 may not be inserted into the avoiding channel 211, the first screw 110 may have a thicker size, and the limiting boss 213 is not required to be disposed, so that the avoiding channel 211 may allow a screwdriver for rotating the first screw 110 to pass through.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. A connecting terminal is characterized in that: the wire connecting structure comprises a wiring board (300), a first connecting mechanism (100) and a second connecting mechanism (200) which are used for fixing a first external wire (1) and a second external wire (2) respectively, wherein the first connecting mechanism (100) and the second connecting mechanism (200) respectively comprise a first screw (110) and a second screw (210), the first external wire (1) and the second external wire (2) can be fixed on the wiring board (300) respectively by rotating the first screw (110) and the second screw (210), the first screw (110) and the second screw (210) are coaxially arranged, the second screw (210) is arranged above the first screw (110), the second screw (210) is provided with an avoiding channel (211), and the first screw (110) can be rotated through the avoiding channel (211).
2. The connection terminal according to claim 1, wherein: the second connecting mechanism (200) further comprises a wiring nut (220), a second threaded hole (221) in threaded fit with the second screw (210) is formed in the wiring nut (220), the second screw (210) is close to and far away from the wiring board (300) along the direction of the second threaded hole (221) when rotating, and the second external lead (2) can be pressed tightly on the wiring board (300) to be fixed when the second screw (210) is close to the wiring board (300).
3. A terminal according to claim 1 or 2, wherein: the second screw (210) is of a cylindrical structure, the avoidance channel (211) is arranged on the inner side of the second screw (210), and threads are arranged on the outer side of the second screw (210).
4. A terminal according to claim 1, wherein: the top end of the second screw (210) is in a circular ring shape, and at least one pair of second operation grooves (212) are formed in the end face of the top of the second screw (210) and used for rotating the second screw (210).
5. The connection terminal according to claim 1, wherein: the periphery of the bottom of the first screw (110) is provided with threads, the top of the first screw (110) is provided with a first operating groove (112) matched with a screwdriver, and the top of the first screw (110) is inserted into the avoiding channel (211).
6. The connection terminal according to claim 5, wherein: the second screw (210) is provided with a limiting boss (213) protruding into the avoidance channel (211), and the limiting boss (213) is used for blocking the first screw (110).
7. The connection terminal according to claim 1, wherein: wiring board (300) include with first coupling mechanism (100) complex down line segment (330), and relative setting down line segment (330) top with second coupling mechanism (200) complex goes up line segment (310), the one end of lower line segment (330) is equipped with outer line segment (320), outer line segment (320) are connected between the one end of lower line segment (330) and last line segment (310), the other end of lower line segment (330) is equipped with interior line segment (340), interior line segment (340) are used for the linked switch electrical apparatus, be equipped with on last line segment (310) be used for with the hole (311) of dodging that first screw (110) correspond.
8. The connection terminal according to claim 7, wherein: the first connecting mechanism (100) further comprises a wire holder (120) which is of a frame-shaped structure, the wire holder (120) is movably sleeved on a lower wire section (330) of the wiring board (300), a first threaded hole (121) in threaded fit with a first screw (110) is formed in the top of the wire holder (120), the first screw (110) penetrates through the first threaded hole (121) and then is blocked by the top side of the lower wire section (330), the first screw (110) can drive the wire holder (120) to move when rotating, and when the bottom of the wire holder (120) is close to the wiring board (300), a first external lead (1) can be compressed on the bottom side of the lower wire section (330) to be fixed.
9. A circuit breaker, characterized by: the outlet end and/or inlet end of the circuit breaker is provided with at least one group of connecting terminals according to any one of claims 1-8.
10. The circuit breaker of claim 9, wherein: casing (4) of circuit breaker are equipped with and are used for fixed mounting the mounting groove (5) of binding post's binding nut (220), casing (4) of circuit breaker correspond and are equipped with handle hole (6) that are used for dodging the screwdriver in the top of second screw (210), and the internal diameter of handle hole (6) is less than the external diameter of second screw (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790059.0U CN215869206U (en) | 2021-04-16 | 2021-04-16 | Binding post and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790059.0U CN215869206U (en) | 2021-04-16 | 2021-04-16 | Binding post and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215869206U true CN215869206U (en) | 2022-02-18 |
Family
ID=80319091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120790059.0U Active CN215869206U (en) | 2021-04-16 | 2021-04-16 | Binding post and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215869206U (en) |
-
2021
- 2021-04-16 CN CN202120790059.0U patent/CN215869206U/en active Active
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