CN211605014U - Electromagnetic trip and have its circuit breaker - Google Patents

Abstract

The utility model provides an electromagnetic trip and have its circuit breaker belongs to circuit breaker technical field, wherein, the electromagnetic trip includes: an electromagnetic system having a yoke disposed outside the coil, the coil being wound on a sleeve and having a first electrical connection end projecting outwardly, and an armature slidably mounted within the sleeve; the tail part of the incoming line terminal is provided with an integrally formed extension plate, and the extension plate is directly connected with a first electric connection end extending outwards of the coil; the utility model provides an electromagnetic trip, incoming line terminal afterbody in the main circuit stretch out has the extension board, realizes being connected of electromagnetic trip and main circuit through the coil connection among extension board and the electromagnetic system, reaches short-circuit protection's effect.

Description

Electromagnetic trip and have its circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to electromagnetism release and have its circuit breaker.

Background

The electromagnetic release is one of releases, can be used for providing short-circuit protection in the circuit breaker, when the electric current that passes through in the coil of electromagnetic release is big enough, the magnetic field force actuation armature that produces strikes operating device's hasp to drive operating device action cutting-off circuit.

In order to achieve short-circuit protection of the electromagnetic release, a coil in the electromagnetic release is generally connected in series with a main circuit through a wire.

However, when the circuit breakers are densely arranged, for example, several tens or hundreds, the heat generated at the coil of the electromagnetic trip inside the circuit breaker will be greatly increased, which may affect the performance of the circuit breaker.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an electromagnetic trip that can reduce the temperature rise and have its circuit breaker.

In order to solve the technical problem, the utility model provides an electromagnetic release, include:

an electromagnetic system having a yoke disposed outside the coil, the coil being wound on a sleeve and having a first electrical connection end projecting outwardly, and an armature slidably mounted within the sleeve;

the tail part of the incoming line terminal is provided with an integrally formed extension plate, and the extension plate is directly connected with a first electric connection end of the coil, which extends outwards.

Preferably, the first electrical connection end of the coil for connecting to the extension plate is led out from a side surface of the coil.

As a preferred technical solution, the coil further has a second electrical connection end protruding outward from the side surface, and the second electrical connection end is electrically connected with the yoke.

As a preferred technical solution, the extension plate extends outward from a middle position of the tail portion of the inlet terminal;

and a space is reserved between two side edges of the extension plate and the wire inlet terminal.

As a preferable technical solution, the middle part of the extension plate has a bend.

As a preferred solution, the line terminal is arranged at one end of an armature of the electromagnetic system.

In a preferred embodiment, an end of the armature remote from the line terminals has an annular outwardly extending flange.

The utility model also provides a circuit breaker, electromagnetic trip.

As a preferred technical solution, an electromagnetic system of the electromagnetic release is disposed at one side in a housing of the circuit breaker, and one end of an armature of the electromagnetic system is opposite to an operating mechanism in the housing;

the wire terminal is arranged at the other end of the armature along the extension line of the armature.

As a preferred technical scheme, a limiting plate is arranged on the housing, and the limiting plate is opposite to one end, close to the incoming line terminal, of the armature.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an electromagnetic release, including electromagnetic system and incoming line terminal, outwards stretch out on electromagnetic system's the coil and have first electricity to connect the end, and the afterbody integrated into one piece of incoming line terminal has the extension board, first electricity connect the end with extend board lug connection to only having a solder joint between messenger's coil and the incoming line terminal and can realizing being connected, through the quantity that has reduced the solder joint, messenger's electromagnetic release during operation has reduced the calorific capacity of coil department, reduces the temperature rise.

2. The utility model provides an electromagnetic trip, incoming line terminal have the interval on the both sides limit of extension board, before making incoming line terminal bending shaping, are convenient for confirm whether the extension board has cut apart with the incoming line terminal, guarantee the shaping of extension board.

3. The utility model provides an electromagnetic release, extension board middle part has bends, should bend and can make extension board adaptation coil's not co-altitude.

4. The utility model provides an electromagnetic release, incoming line terminal setting are in electromagnetic system's armature one end for electromagnetic system can reasonable setting in electric switching device, and be convenient for cooperate with other structures among the electric switching device.

5. The utility model provides an electromagnetic release, armature keep away from the flange of the one end of incoming line terminal can increase armature and operating device's area of contact, avoids taking place the slippage.

6. The utility model provides a circuit breaker, electromagnetic system set up with operating device is relative, and incoming line terminal setting is in one side of electromagnetic system simultaneously, sets up in order, saves the circuit breaker inner space.

7. The utility model provides a circuit breaker is provided with the limiting plate on the casing, and the limiting plate sets up with the incoming line terminal relatively, and when taking place the short circuit phenomenon, coil current increases among the electromagnetic system, and electromagnetic system magnetic force reinforcing when armature moves to operating device one side, the limiting plate can prevent that armature from removing to opposite direction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of an electromagnetic release according to the present invention;

FIG. 2 is a schematic perspective view of the line terminal of FIG. 1;

fig. 3 is a front view of the internal structure of the circuit breaker with an electromagnetic release according to the present invention.

Description of reference numerals:

1. a housing; 2. a limiting plate; 3. an incoming terminal; 4. a coil; 5. a magnetic yoke; 6. an armature; 7. an operating mechanism; 8. a moving contact; 9. static contact; 10. a sleeve; 11. an extension plate; 12. a flange; 13. a first electrical connection terminal; 14. a second electrical connection terminal.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The utility model provides a specific implementation mode of an electromagnetic release, as shown in figure 1, comprising an electromagnetic system and a wire inlet terminal 3, wherein the electromagnetic system is provided with a magnetic yoke 5, a coil 4 and an armature 6, the magnetic yoke 5 is arranged outside the coil 4, the coil 4 is wound on a sleeve 10, and the armature 6 is slidably arranged in the sleeve 10; the coil 4 has a first electrical connection end 13 and a second electrical connection end 14, which are led out from the side, the first electrical connection end 13 being connected to the line terminal 3, and the second electrical connection end 14 being connected to the yoke 5.

As shown in fig. 1 and 2, the line terminal 3 is disposed at one end of an armature 6 of an electromagnetic system, an extension plate 11 is integrally formed at a tail portion of the line terminal 3, and a first electrical connection end 13 of the coil 4 is directly connected to the extension plate 11 by welding. The head of the incoming terminal 3 is used for connection to a main circuit and thus to a power supply.

As shown in fig. 1, the end of the armature 6 of the electromagnetic system, which is far from the line terminal 3, is provided with a flange 12, and the flange 12 can increase the contact area of the armature 6 and the operating mechanism 7, so that slipping can be avoided.

As shown in fig. 2, the central portion of extension plate 11 of wire terminal 3 has a bend, by which wire terminal 3 can be adapted to different heights of coil 4, improving the adaptability of wire terminal 3. Wire terminal 3 has a space between both side edges of extension plate 11 and wire terminal 3, which space is used to facilitate confirmation that extension plate 11 and wire terminal 3 have been separated when wire terminal 3 is bent. In an alternative embodiment, the bend of the extension plate 11 may be omitted, and the space between both sides of the extension plate 11 may not be provided.

Example 2

As shown in fig. 3, the utility model provides a circuit breaker's embodiment with electromagnetic trip, in the casing 1 of circuit breaker, electromagnetic system sets up with operating device 7 relatively, and incoming line terminal 3 sets up in one side of electromagnetic system simultaneously, sets up in order, saves the circuit breaker inner space.

The limiting plate 2 is arranged on the shell 1, the limiting plate 2 is arranged opposite to the wire inlet terminal 3, when a short circuit phenomenon occurs, the current of the coil 4 in the electromagnetic system is increased, the magnetic force of the electromagnetic system is enhanced, and when the armature 6 moves to one side of the operating mechanism 7, the limiting plate 2 can prevent the armature 6 from moving in the opposite direction.

Principle of operation

As shown in fig. 3, when the main circuit is short-circuited, the current in the coil 4 increases to enhance the magnetic force in the electromagnetic system, and the armature 6 moves leftward under the action of the magnetic force to push the operating mechanism 7 to drive the moving contact 8 to separate from the stationary contact 9, so that the main circuit is disconnected, and the circuit protection effect is achieved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. An electromagnetic release, comprising:

the electromagnetic system is provided with a magnetic yoke (5), a coil (4) and an armature (6), the magnetic yoke (5) is arranged outside the coil (4), the coil (4) is wound on a sleeve (10) and is provided with a first electric connection end extending outwards, and the armature (6) is installed in the sleeve (10) in a sliding mode;

the wire inlet terminal (3) is used for being connected with a main circuit, the tail part of the wire inlet terminal (3) is provided with an integrally formed extension plate (11), and the extension plate (11) is directly connected with a first electric connection end extending outwards of the coil (4).

2. Electromagnetic trip according to claim 1, characterized in that the first electrical connection end of the coil (4) for connection with the extension plate (11) is led out from the side of the coil (4).

3. Electromagnetic trip according to claim 1 or 2, characterized in that the coil (4) also has a second electrical connection end protruding outwards from the side, which second electrical connection end is electrically connected with the yoke (5).

4. The electromagnetic trip according to claim 3, characterized in that the extension plate (11) extends outwards from a middle position of the tail of the incoming line terminal (3);

and a space is reserved between two side edges of the extension plate (11) and the wire inlet terminal (3).

5. Electromagnetic trip according to claim 4, characterized in that the extension plate (11) has a bend in its middle.

6. Electromagnetic trip according to claim 3, characterized in that the inlet terminal (3) is arranged at one end of an armature (6) of the electromagnetic system.

7. Electromagnetic trip device according to claim 6, characterized in that the end of the armature (6) remote from the inlet terminal (3) has an annular outwardly extending flange (12).

8. A circuit breaker comprising an electromagnetic trip as claimed in any one of claims 1 to 7.

9. The circuit breaker according to claim 8, characterized in that the electromagnetic system of the electromagnetic trip is arranged on one side inside the circuit breaker housing (1), the armature (6) of the electromagnetic system having one end opposite the operating mechanism (7) inside the housing (1);

the wire inlet terminal (3) is arranged at the other end of the armature (6) along the extension line of the armature (6).

10. The circuit breaker according to claim 9, wherein a limiting plate (2) is provided on the housing (1), the limiting plate (2) being opposite to an end of the armature (6) close to the inlet terminal (3).

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