CN210245437U - Miniature circuit breaker with bilateral bus bar wiring port - Google Patents
Miniature circuit breaker with bilateral bus bar wiring port Download PDFInfo
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- CN210245437U CN210245437U CN201921584135.1U CN201921584135U CN210245437U CN 210245437 U CN210245437 U CN 210245437U CN 201921584135 U CN201921584135 U CN 201921584135U CN 210245437 U CN210245437 U CN 210245437U
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Abstract
The utility model provides a miniature circuit breaker with a bilateral busbar wiring port, which comprises a shell, an electromagnetic assembly, an arc extinguish chamber and a tripping assembly, wherein one side of the circuit breaker is provided with a wire inlet end which is connected with a first wiring terminal of a circuit to be detected; the other side is provided with a wire outlet end which is connected with a second wiring terminal of the line to be detected; the wire inlet end is provided with a first wiring screw, a first wiring frame and a first connecting member, and the first wiring screw and the first wiring frame are arranged in an up-and-down adjacent mode; the first connecting component is made of conductive materials and is connected between the first wiring screw and the first wiring frame; the wire outlet end comprises a second wiring screw, a second wiring frame and a second connecting member, and the second wiring screw and the second wiring frame are arranged adjacently up and down; the second connecting component is made of conductive materials and is connected between the second wiring screw and the second wiring frame; the utility model discloses a wiring mouth structure to miniature circuit breaker improves, makes its convenience of customers use of working a telephone switchboard, expands application simultaneously.
Description
Technical Field
The utility model relates to a circuit breaker, specific theory relates to a miniature circuit breaker with bilateral busbar wiring mouth.
Background
The Micro Circuit Breaker (Micro Circuit Breaker) is suitable for overload and short Circuit protection of a line with rated voltage of 50/60Hz, rated current of 230/400V and rated current of 63A, can also be used for infrequent operation and conversion of the line under normal conditions, is mainly used in various places such as industry, commerce, high-rise and civil houses, is generally arranged in a distribution box, and is a most widely used terminal protection electrical appliance in a building electrical terminal distribution device. The conventional miniature circuit breaker, such as products DZ47-63, has only one wiring mode, namely, the wiring is performed from a wiring frame, and the wiring is not used for wiring, so that the application function and the scene of the conventional miniature circuit breaker are difficult to expand.
In addition, the conventional miniature circuit breakers, such as C65, DZ47-63 and the like, have no breaking treatment at the arc-spraying opening, are easy to generate flashover to blow fuses, and during the use process, short-circuit current occurs, and the generated arc is sprayed out, so that safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a take bilateral busbar wiring mouth's miniature circuit breaker improves through the wiring mouth structure to current miniature circuit breaker, makes its convenience of customers use of working a telephone switchboard, expands application simultaneously.
Based on the above purpose, the utility model provides a miniature circuit breaker with a bilateral busbar junction, which comprises a shell, an electromagnetic component, an arc extinguish chamber and a tripping component,
the tripping assembly is connected in a circuit to be protected and comprises a tripping part and a deflector rod part, and the tripping part is arranged in the shell; one end of the deflector rod part is connected with the tripping part, and the other end of the deflector rod part extends out of the shell; the tripping assembly is used for instantaneously acting to control the disconnection of the line to be protected when a fault occurs in the line to be protected;
the electromagnetic assembly is arranged in the shell, is adjacent to the tripping assembly, and is used for carrying out fault detection on a line to be protected and controlling the tripping assembly to instantaneously act to disconnect the line to be protected when the line to be protected has a fault;
the arc extinguishing chamber is arranged in the shell, is positioned below the electromagnetic assembly and the tripping assembly, and is used for isolating or extinguishing electric arcs in the circuit breaker;
a wire inlet end is arranged on one side of the circuit breaker and is connected with a first wiring terminal of a line to be detected; the other side of the circuit breaker is provided with a wire outlet end which is connected with a second wiring terminal of the circuit to be detected, and when the circuit breaker is closed, the first wiring terminal is conducted with the second wiring terminal; when the circuit breaker is disconnected, the first connecting terminal and the second connecting terminal are not conducted;
the wire inlet end is provided with a first wiring screw, a first wiring frame and a first connecting member, and the first wiring screw and the first wiring frame are arranged vertically and adjacently; the first connecting component is made of a conductive material, is connected between the first wiring screw and the first wiring frame, and is used for connecting a first wiring terminal of a line to be detected with the line of the tripping assembly;
the wire outlet end comprises a second wiring screw, a second wiring frame and a second connecting component, and the second wiring screw and the second wiring frame are arranged adjacently up and down; the second connecting component is made of a conductive material, is connected between the second wiring screw and the second wiring frame, and is used for connecting a second wiring terminal of the line to be detected with the line of the electromagnetic assembly;
a first bus bar wiring port is arranged on the shell corresponding to the first wiring screw, a first wiring port is arranged on the shell corresponding to the first wiring frame, and a part of the first wiring component is exposed at the first wiring port; the shell is provided with a second bus bar wiring port corresponding to the second wiring screw, a second wiring port corresponding to the second wiring frame is arranged, and a part of the second wiring component is exposed at the second wiring port.
Preferably, the first connecting member is a bent plate-shaped structure, the top of the first connecting member is perpendicular to the first binding screw, and a first through hole for the first binding screw to pass through is formed in the first connecting member, the middle of the first connecting member passes through the first binding frame, and the lower part of the first connecting member extends downwards to be connected with a circuit of the tripping assembly.
Preferably, the first wire frame is a rectangular frame formed by bending a plate, and a first bolt hole for fixing the first wire bolt is formed in the top of the first wire frame.
Preferably, the second connecting member is a bent plate-shaped structure, the top of the second connecting member is perpendicular to the second terminal screw, and a second through hole for the second terminal screw to pass through is provided, one end of the top of the second connecting member extends downwards along the inner wall of the housing and is bent into the second terminal frame, and the other end of the top of the second connecting member extends towards the direction of the electromagnetic assembly and is connected with the electromagnetic coil in the electromagnetic assembly.
Preferably, the second wire frame is a rectangular frame formed by bending a plate, and a second bolt hole for fixing a second wire bolt is formed in the top of the second wire frame.
Preferably, the arc isolating structure is arranged at the bottom of one side of the arc extinguishing chamber adjacent to the wire outlet end and fixed on the inner wall of the shell.
Preferably, the arc isolating structure is in the shape of an arc plate, and the middle of the arc isolating structure is sunken towards the direction close to the arc extinguishing chamber.
Compared with the prior art, the beneficial effects of the utility model are that:
1) through improving the wiring mouth structure of inlet wire end and outlet wire end to current miniature circuit breaker, add busbar wiring mouth to make its convenience of customers wiring use, expand the application field simultaneously.
2) The bottom of the arc extinguish chamber adjacent to the outlet end is provided with an arc isolating structure, so that the fuse wire near the outlet end is prevented from being blown by arc flashover, and the safety accident caused by the ejection of the electric arc generated when the test is passed and the overcurrent occurs in the use process of the product is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic view showing an appearance structure of a micro circuit breaker with a bilateral bus bar connection port according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an appearance structure of a miniature circuit breaker with a bilateral bus bar connection port according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of a micro circuit breaker with a bilateral bus bar connection port according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of a miniature circuit breaker with a bilateral bus bar connection port according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first wiring member of a miniature circuit breaker with a bilateral bus bar wiring port according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first wiring frame of a miniature circuit breaker with a bilateral bus bar wiring port according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second wiring member of the miniature circuit breaker with a bilateral bus bar wiring port according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second wire frame of the miniature circuit breaker with a bilateral bus bar wire connection port in the embodiment of the present invention.
Wherein, 1, a shell; 2. an electromagnetic assembly; 4. an arc extinguishing chamber; 5. an arc isolating structure; 6. a bimetal;
11. a first bus bar connection port; 12. a first wiring port; 13. a second bus bar connection port; 14. a second wiring port;
21. static contact; 31. a moving contact;
71. a first binding screw; 72. a first wiring frame; 73. a first wiring member;
721. a first bolt hole; 731. a first through hole;
81. a second binding screw; 82. a second wire frame; 83. a second wiring member;
821. a second bolt hole; 831. a second via.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Furthermore, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element 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.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment provides a miniature circuit breaker with a bilateral bus bar connection port, as shown in fig. 1-4, the miniature circuit breaker includes a housing 1, an electromagnetic assembly 2, an arc extinguish chamber 4 and a tripping assembly; wherein:
the tripping assembly is connected in a circuit to be protected and comprises a tripping part and a driving lever part, and the tripping part is arranged in the shell 1; one end of the deflector rod part is connected with the tripping part, and the other end of the deflector rod part extends out of the shell 1; the tripping assembly is used for instantaneously acting to control the disconnection of the line to be protected when a fault occurs in the line to be protected;
the electromagnetic assembly 2 is arranged in the shell 1, is adjacent to the tripping assembly, and is used for carrying out fault detection on a line to be protected and controlling the tripping assembly to instantaneously act to disconnect the line to be protected when the line to be protected has a fault;
the arc extinguish chamber 4 is arranged in the shell 1, is positioned below the electromagnetic component 2 and the tripping component, and is used for isolating or extinguishing electric arcs in the circuit breaker;
a wire inlet end is arranged on one side of the circuit breaker and is connected with a first wiring terminal of a line to be detected; the other side of the circuit breaker is provided with a wire outlet end which is connected with a second wiring terminal of the circuit to be detected, and when the circuit breaker is closed, the first wiring terminal is conducted with the second wiring terminal; when the circuit breaker is disconnected, the first connecting terminal and the second connecting terminal are not conducted;
the wire inlet end is provided with a first wiring screw 71, a first wiring frame 72 and a first connecting component, and the first wiring screw 71 and the first wiring frame 72 are arranged vertically adjacent to each other; the first connecting member is made of a conductive material, is connected between the first wiring screw 71 and the first wiring frame 72, and is used for connecting a first wiring terminal of a line to be detected with the line of the tripping assembly;
the wire outlet end comprises a second wiring screw 81, a second wiring frame 82 and a second connecting component, and the second wiring screw 81 and the second wiring frame 82 are arranged vertically and adjacently; the second connecting member is made of a conductive material, is connected between the second wiring screw 81 and the second wiring frame 82, and is used for connecting a second wiring terminal of the line to be detected with the line of the electromagnetic assembly 2;
a first bus bar wiring port 11 is arranged on the shell 1 corresponding to the first wiring screw 71, a first wiring port 12 is arranged on the shell corresponding to the first wiring frame 72, and a part of the first wiring member 73 is exposed at the first wiring port 12; a second bus bar wire connection port 13 is formed on the housing 1 corresponding to the second wire connection screw 81, a second wire connection port 14 is formed on the housing corresponding to the second wire connection frame 82, and a portion of the second wire connection member 83 is exposed at the second wire connection port 14.
Specifically, the lower end of the tripping component is provided with a movable contact 31, the lower end of the electromagnetic component 2 is provided with a fixed contact 21, a first wiring terminal of a line to be detected is connected with a first wiring member 73 through a first bus bar wiring port 11 or a first wiring port 12 of a wire inlet end of the shell 1, and the first wiring member 73 is connected with the movable contact 31 in the tripping component through a temperature-sensing bimetallic strip 6; a second wiring terminal of the line to be detected is connected with a second wiring member 83 through a second bus bar wiring port 13 or a second wiring port 14 of the outlet end of the shell 1, the second wiring member 83 is connected with one end of an electromagnetic coil in the electromagnetic component 2, and the other end of the electromagnetic coil is connected with the static contact 21; therefore, under the condition that the line to be detected is conducted without a fault, the movable contact 31 is contacted with the fixed contact 21, so that the current passing route in the first wiring terminal is as follows: the first wiring member 73-the bimetallic strip 6-the movable contact 31-the fixed contact 21-the electromagnetic coil-the second wiring member 83-the second wiring terminal; when the line to be detected has an overcurrent or short-circuit fault, the tripping component acts to separate the movable contact 31 from the static contact 21, and the line is blocked, so that the line to be detected is disconnected.
As a preferred embodiment, as shown in fig. 5, the first connecting member is a bent plate-shaped structure, the top of the first connecting member is perpendicular to the first binding screws 71, and a first through hole 731 for passing the first binding screws 71 is provided, the middle of the first connecting member passes through the first binding frame 72, and the lower part of the first connecting member extends downward to connect with the circuit of the trip unit.
As a preferred embodiment, as shown in fig. 6, the first wire frame 72 is a rectangular frame formed by bending a plate material, and a first bolt hole 721 for fixing the first wire bolt 71 is provided at the top thereof.
As a preferred embodiment, as shown in fig. 7, the second connecting member is a bent plate-shaped structure, the top of the second connecting member is perpendicular to the second terminal screw 81, and a second through hole 831 for the second terminal screw 81 to pass through is provided, one end of the top of the second connecting member extends downward along the inner wall of the housing 1 and is bent into the second terminal frame 82, and the other end of the top of the second connecting member extends toward the electromagnetic assembly 2 and is connected to the electromagnetic coil in the electromagnetic assembly 2.
As a preferred embodiment, as shown in fig. 8, the second wire frame 82 has a rectangular frame shape formed by bending a plate material, and a second bolt hole 821 for fixing the second wire screw 81 is provided at the top thereof.
As a preferred embodiment, as shown in fig. 3, the arc extinguishing chamber 4 is provided with an arc blocking structure 5 at the bottom of the side adjacent to the outlet end, and the arc blocking structure 5 is fixed on the inner wall of the housing 1.
In a preferred embodiment, the arc isolating structure 5 is in the shape of an arc plate, and the middle of the arc isolating structure is concave towards the arc extinguishing chamber 4, so that the fuse wire near the outlet end is prevented from being blown by arcing.
To sum up, the utility model discloses a wiring mouthful structure to current miniature circuit breaker improves to make its convenience of customers wiring use, expand application simultaneously. And simultaneously, the utility model discloses be provided with an arc structure of separating in the bottom of explosion chamber and the adjacent one side of leading-out terminal to prevent that the flashover from making near the fuse blow of leading-out terminal, the electric arc blowout that produces when the overcurrent appears in the assurance test through and the product use takes place the incident.
Further, it should be noted that:
in the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (7)
1. A miniature circuit breaker with a bilateral busbar junction comprises a shell (1), an electromagnetic component (2), an arc extinguish chamber (4) and a tripping component,
the tripping assembly is connected in a circuit to be protected and comprises a tripping part and a driving lever part, and the tripping part is arranged in the shell (1); one end of the deflector rod part is connected with the tripping part, and the other end of the deflector rod part extends out of the shell (1); the tripping assembly is used for instantaneously acting to control the disconnection of the line to be protected when a fault occurs in the line to be protected;
the electromagnetic assembly (2) is arranged in the shell (1), is adjacent to the tripping assembly, and is used for carrying out fault detection on a line to be protected and controlling the tripping assembly to instantaneously act to disconnect the line to be protected when the line to be protected has a fault;
the arc extinguishing chamber (4) is arranged in the shell (1), is positioned below the electromagnetic assembly (2) and the tripping assembly, and is used for isolating or extinguishing electric arcs in the circuit breaker;
a wire inlet end is arranged on one side of the circuit breaker and is connected with a first wiring terminal of a line to be detected; the other side of the circuit breaker is provided with a wire outlet end which is connected with a second wiring terminal of the circuit to be detected, and when the circuit breaker is closed, the first wiring terminal is conducted with the second wiring terminal; when the circuit breaker is disconnected, the first connecting terminal and the second connecting terminal are not conducted;
it is characterized in that the preparation method is characterized in that,
the wire inlet end is provided with a first wiring screw (71), a first wiring frame (72) and a first connecting member, and the first wiring screw (71) and the first wiring frame (72) are arranged vertically adjacent to each other; the first connecting component is made of conductive materials, is connected between the first wiring screw (71) and the first wiring frame (72), and is used for connecting a first wiring terminal of a line to be detected with the line of the tripping assembly;
the wire outlet end comprises a second wiring screw (81), a second wiring frame (82) and a second connecting component, and the second wiring screw (81) and the second wiring frame (82) are arranged adjacently up and down; the second connecting component is made of conductive materials, is connected between the second wiring screw (81) and the second wiring frame (82), and is used for connecting a second wiring terminal of the line to be detected with the line of the electromagnetic assembly (2);
a first bus bar wiring port (11) is formed in the position, corresponding to the first wiring screw (71), of the shell (1), a first wiring port (12) is formed in the position, corresponding to the first wiring frame (72), of the shell, and a part of the first wiring component (73) is exposed out of the first wiring port (12); a second bus bar wiring port (13) is arranged on the shell (1) corresponding to the second wiring screw (81), a second wiring port (14) is arranged on the shell corresponding to the second wiring frame (82), and a part of the second wiring member (83) is exposed out of the second wiring port (14).
2. The miniature circuit breaker with bilateral bus bar port according to claim 1, wherein said first connecting member is a bent plate-shaped structure, the top of which is perpendicular to the first binding screw (71), and is provided with a first through hole (731) for passing the first binding screw (71), the middle of which passes through the first wire frame (72), and the lower of which extends downward to connect with the circuit of the trip unit.
3. The miniature circuit breaker with bilateral bus bar connection port according to claim 2, wherein said first connection frame (72) is a rectangular frame formed by bending a plate, and the top of the frame is provided with a first bolt hole (721) for fixing a first connection screw (71).
4. The miniature circuit breaker with bilateral bus bar port according to claim 1, wherein the second connecting member is a bent plate-shaped structure, the top of the second connecting member is perpendicular to the second binding screw (81), and a second through hole (831) for the second binding screw (81) to pass through is provided, one end of the top of the second connecting member extends downwards along the inner wall of the housing (1) and is bent into the second binding frame (82), and the other end of the top of the second connecting member extends towards the electromagnetic assembly (2) and is connected with the electromagnetic coil in the electromagnetic assembly (2).
5. The miniature circuit breaker with bilateral bus bar connection port according to claim 4, wherein said second connection frame (82) is a rectangular frame formed by bending a plate, and a second bolt hole (821) for fixing a second connection screw (81) is provided on the top thereof.
6. The miniature circuit breaker with the bilateral bus bar connection port according to any one of claims 1-5, wherein the arc-extinguishing chamber (4) is provided with an arc-isolating structure (5) at the bottom of the side adjacent to the outlet end, and the arc-isolating structure (5) is fixed on the inner wall of the shell (1).
7. The miniature circuit breaker with bilateral bus bar connection port according to claim 6, wherein said arc isolating structure (5) is arc-shaped plate, and its middle portion is recessed toward the direction of the arc-extinguishing chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584135.1U CN210245437U (en) | 2019-09-23 | 2019-09-23 | Miniature circuit breaker with bilateral bus bar wiring port |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584135.1U CN210245437U (en) | 2019-09-23 | 2019-09-23 | Miniature circuit breaker with bilateral bus bar wiring port |
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| Publication Number | Publication Date |
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| CN210245437U true CN210245437U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921584135.1U Active CN210245437U (en) | 2019-09-23 | 2019-09-23 | Miniature circuit breaker with bilateral bus bar wiring port |
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| CN (1) | CN210245437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491740A (en) * | 2019-09-23 | 2019-11-22 | 浙江永继电气有限公司 | A kind of miniature circuit breaker of the bilateral busbar connector connection jaws of band |
-
2019
- 2019-09-23 CN CN201921584135.1U patent/CN210245437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491740A (en) * | 2019-09-23 | 2019-11-22 | 浙江永继电气有限公司 | A kind of miniature circuit breaker of the bilateral busbar connector connection jaws of band |
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