Linkage structure of external accessory of circuit breaker

Abstract

A linkage structure of an external accessory of a circuit breaker comprises a body handle, the body handle (1) can drive a moving contact (5) and a static contact (6) to be connected and separated through cooperation of a transmission connecting rod (2), a lock catch (3) and a jump pin (4) in the rotating process, and the linkage structure is characterized in that a tripping piece (7) is in linkage with an accessory connecting rod (8), the accessory connecting rod (8) is rotatably installed on a circuit breaker shell (9), and the tripping piece (7) is in linkage with the accessory connecting rod (8). One end part of the accessory connecting rod (8) is linked with the tripping piece (7), the other end part of the accessory connecting rod (8) is linked with an external accessory, and the external accessory can drive the tripping piece (7) to turn over through the accessory connecting rod (8) in the action process. The tripping piece is in linkage with the accessory connecting rod, tripping of the circuit breaker is achieved through the tripping piece, meanwhile, the accessory connecting rod connected with the tripping piece is used for being connected with the accessory, and accessory splicing is achieved more simply and stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and specifically relates to a circuit breaker external accessory linkage structure. Background Art

[0002] As a derivative and supplement of the circuit breaker function, circuit breaker accessories add control means and expand the protection function for the circuit breaker, making the circuit breaker more widely used and more fully protected. Common circuit breaker functional accessories include: undervoltage (or overvoltage) accessories, shunt accessories and auxiliary accessories. At present, the operating mechanism of the circuit breaker used in some scenarios cannot be directly assembled with accessories, which loses some of the extended functions. Utility Model Content

[0003] The purpose of the utility model is to provide a circuit breaker external accessory linkage structure to address the defects that the operating mechanism of the circuit breaker used in certain existing scenarios cannot be directly assembled with accessories, loses some expansion functions, or even if it can be assembled, it takes up a large space. The utility model can realize the tripping of the circuit breaker through a tripping piece, and connect the accessories with the accessory connecting rod connected to the tripping piece, so as to realize the splicing of accessories more simply and stably.

[0004] Technical Solution

[0005] In order to achieve the above technical purpose, the utility model provides a circuit breaker external accessory linkage structure, which includes a main body handle, and the main body handle can drive the engagement and separation of the moving contact and the static contact through the cooperation of the transmission connecting rod, the lock buckle, and the jump buckle during rotation. It is characterized in that: the release piece is linked with the accessory connecting rod, and the accessory connecting rod is rotatably installed on the circuit breaker housing. One end of the accessory connecting rod is linked with the release piece, and the other end is linked with the external accessory. During the action of the external accessory, the release piece can be driven to flip through the accessory connecting rod.

[0006] In one embodiment, the release member is rotatably mounted in the circuit breaker housing, and the release member is connected to the lock through a release connector;

[0007] One end of the release connector is inserted into the connection hole on the release member, and the other end is inserted into a groove 1 on the lock buckle.

[0008] In one embodiment, one end of the accessory connecting rod is connected to the release member, and the other end rotates in the circuit breaker housing to achieve linkage with an external accessory. The connection between one end of the accessory connecting rod and the release member and the linkage between the other end of the accessory connecting rod and the external accessory are located on both sides of the rotation center of the accessory connecting rod.

[0009] In one of the embodiments, a connection protrusion is provided at a portion where the release member is connected to the accessory connecting rod, and the connection protrusion extends into a U-shaped groove on a corresponding end of the accessory connecting rod.

[0010] In one of the embodiments, a limiting boss is provided on a surface of the end portion of the release member connected to the accessory connecting rod facing the accessory connecting rod, and the limiting boss cooperates with the circuit breaker housing to prevent the accessory connecting rod from deviating from the engaging position.

[0011] In one embodiment, one end of the accessory connecting rod is linked to the release member through an accessory connecting rod.

[0012] In one embodiment, the magnetic release mechanism is linked with the release member, and when the magnetic release mechanism is actuated, it can push the release member to rotate clockwise to achieve product release.

[0013] In one embodiment, the magnetic tripping mechanism is disposed in the circuit breaker housing and above the tripping member.

[0014] In one of the embodiments, the magnetic tripping mechanism and the accessory connecting rod are located at the front and rear sides of the circuit breaker housing in a horizontal inward direction.

[0015] In one embodiment, the rotation center of the main body handle is O1, the rotation center of the mechanism assembly is O2, the rotation center of the main body handle and the rotation center of the mechanism assembly are arranged vertically, and the lock, the mechanism seat, and the contact seat are coaxially installed in the circuit breaker housing.

[0016] Beneficial Effects

[0017] The utility model provides a circuit breaker external accessory linkage structure, which includes a body handle, wherein the body handle can drive the engagement and separation of the moving contact and the static contact through the cooperation of a transmission connecting rod, a lock buckle, and a jump buckle during rotation, and the release piece is linked with the accessory connecting rod, wherein the accessory connecting rod is rotatably mounted on the circuit breaker housing, wherein one end of the accessory connecting rod is linked with the release piece, and the other end is linked with the external accessory, and the release piece can be driven to flip through the accessory connecting rod during the action of the external accessory. The release piece is linked with the accessory connecting rod, and while the circuit breaker is tripped by the release piece, the accessory connecting rod connected to the release piece is used to connect the accessory, thereby realizing accessory splicing in a simpler and more stable manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Attached Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Attached Figure 2 This is a schematic diagram of the installation of the magnetic tripping mechanism in Embodiment 1 of the present utility model;

[0021] Attached Figure 3 This is a schematic diagram of the connection between the release member and the accessory connecting rod in Example 1 of the utility model. Figure 1 ;

[0022] Attached Figure 4 This is a schematic diagram of the connection between the release member and the accessory connecting rod in Example 1 of the utility model. Figure 2 ;

[0023] Attached Figure 5 It is a structural schematic diagram of Embodiment 2 of the present utility model;

[0024] Attached Figure 6 This is a schematic diagram of the installation of the release member, the accessory connecting rod, and the accessory connecting rod in Embodiment 2 of the present utility model; DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0030] Example 1

[0031] The operating mechanism of the existing circuit breaker used in certain scenarios cannot be directly assembled with accessories, which loses some expansion functions, or even if it can be assembled, it takes up a large space. In order to solve this problem, this embodiment provides

[0032] The utility model also provides a circuit breaker external accessory linkage structure, which includes a main body handle 1, wherein the rotation center of the main body handle 1 is O1, and the rotation center of the mechanism assembly 13 is O2. The rotation center O1 of the main body handle 1 and the rotation center O2 of the mechanism assembly 13 are arranged vertically, and the lock 3, the mechanism seat 14, and the contact seat 15 are coaxially installed in the circuit breaker housing 9.

[0033] Attached Figure 1 As shown, during the rotation of the main body handle 1, the moving contact 5 and the static contact 6 can be driven to engage and disengage through the cooperation of the transmission connecting rod 2, the lock buckle 3, and the jump buckle 4, wherein the release member 7 is linked with the accessory connecting rod 8, and the accessory connecting rod 8 is rotatably installed on the circuit breaker housing 9, one end of the accessory connecting rod 8 is linked with the release member 7, and the other end is linked with the external accessory, and the release member 7 can be turned over by the accessory connecting rod 8 during the action of the external accessory.

[0034] The release member 7 is rotatably mounted in the circuit breaker housing 9 , and the release member 7 is connected to the lock 3 via a release connector 10 .

[0035] One end of the release connector 10 is inserted into the connection hole 701 on the release member 7, and the other end is inserted into the groove 301 on the lock 3. One end of the accessory connecting rod 8 is connected to the release member 7, and the other end rotates in the circuit breaker housing 9 to realize linkage with the external accessory. The connection between one end of the accessory connecting rod 8 and the release member 7 and the linkage between the other end of the accessory connecting rod 8 and the external accessory are located on both sides of the rotation center of the accessory connecting rod 8. In this embodiment, as shown in FIG. Figure 3 and 4 As shown, the part where the release member 7 is connected to the accessory connecting rod 8 is provided with a connecting protrusion 702, and the connecting protrusion 702 extends into the U-shaped groove 801 on the corresponding end of the accessory connecting rod 8. At the same time, a limiting boss 703 is provided on the side of the end of the release member 7 connected to the accessory connecting rod 8 facing the accessory connecting rod 8, and the limiting boss 703 cooperates with the circuit breaker housing 9 to prevent the accessory connecting rod 8 from deviating at the bite position.

[0036] As attached Figure 2 As shown, the magnetic tripping mechanism 12 is linked with the tripping member 7, and when the magnetic tripping mechanism 12 is in action, it can push the tripping member 7 to rotate clockwise to achieve product tripping. The magnetic tripping mechanism 12 is arranged in the circuit breaker housing 9 above the tripping member 7. The magnetic tripping mechanism 12 and the accessory connecting rod 8 are located at the front and rear sides of the circuit breaker housing 9 in the horizontal inward direction.

[0037] The linkage part of the external accessory moves the through hole 901 on the circuit breaker housing 9 into the circuit breaker housing 9, and the accessory connecting rod 8 acts on the tripping member 7 counterclockwise to move downward to drive the tripping connector 10 so that the lock 3 is unlocked, and the operating mechanism drives the moving contact 5 and the static contact 6 of the circuit breaker to separate and disconnect the circuit;

[0038] Example 2

[0039] In this embodiment, as shown in the attached Figure 5 and 6 As shown, one end of the accessory connecting rod 11 is inserted into the groove 1 7a of the release member 7, and the other end is inserted into the groove 2 8a of the accessory connecting rod 8. A cylinder 9a is provided on the circuit breaker housing 9, and the accessory connecting rod 8 is installed on the cylinder 9a and can rotate. The other end of the accessory connecting rod 8 (the end opposite to the groove 2 8a where the accessory connecting rod 11 is inserted) is provided with an arc hole that matches the accessory, and the rotation of the release member 7 drives the accessory connecting rod 8 to rotate through the accessory connecting rod 11. The other structures are the same as those of the embodiment 1.

[0040] The operating unit of the embodiment of the utility model can match various functional accessories through the accessory connecting rod 2. When the accessory connecting rod 2 acts on the tripping member 2 to push the lock buckle and the jump buckle to unlock, the moving contact and the static contact are separated to achieve protection.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A circuit breaker external accessory linkage structure, comprising a main body handle, wherein the main body handle (1) can drive the engagement and separation of a moving contact (5) and a stationary contact (6) through the cooperation of a transmission connecting rod (2), a lock catch (3) and a jump catch (4) during rotation, and is characterized in that: The release member (7) is linked to an accessory connecting rod (8), and the accessory connecting rod (8) is rotatably mounted on a circuit breaker housing (9). One end of the accessory connecting rod (8) is linked to the release member (7), and the other end is linked to an external accessory. During the operation of the external accessory, the release member (7) can be driven to flip through the accessory connecting rod (8).

2. A circuit breaker external accessory linkage structure as claimed in claim 1, characterized in that: The release member (7) is rotatably mounted in the circuit breaker housing (9), and the release member (7) is connected to the lock (3) via a release connector (10); One end of the release connector (10) is inserted into a connection hole (701) on the release member (7), and the other end is inserted into a groove 1 (301) on the lock buckle (3).

3. A circuit breaker external accessory linkage structure as claimed in claim 1, characterized in that: One end of the accessory connecting rod (8) is connected to the release member (7), and the other end rotates in the circuit breaker housing (9) to realize linkage with an external accessory. The connection point between one end of the accessory connecting rod (8) and the release member (7) and the linkage point between the other end of the accessory connecting rod (8) and the external accessory are located on both sides of the rotation center of the accessory connecting rod (8).

4. A circuit breaker external accessory linkage structure as claimed in claim 3, characterized in that: A connecting protrusion (702) is provided at the portion where the release member (7) is connected to the accessory connecting rod (8), and the connecting protrusion (702) extends into a U-shaped groove (801) on a corresponding end of the accessory connecting rod (8).

5. A circuit breaker external accessory linkage structure as claimed in claim 4, characterized in that: A limiting boss (703) is provided on a surface of the end portion of the release member (7) connected to the accessory connecting rod (8) facing the accessory connecting rod (8); the limiting boss (703) cooperates with the circuit breaker housing (9) to prevent the accessory connecting rod (8) from deviating at the engaging position.

6. A circuit breaker external accessory linkage structure as claimed in claim 1, characterized in that: One end of the accessory connecting rod (8) is linked to the release member (7) via an accessory connecting rod (11).

7. A circuit breaker external accessory linkage structure as claimed in claim 1, characterized in that: The magnetic release mechanism (12) is linked to the release member (7), and when the magnetic release mechanism (12) is in action, it can push the release member (7) to rotate clockwise to achieve product release.

8. A circuit breaker external accessory linkage structure as claimed in claim 7, characterized in that: The magnetic tripping mechanism (12) is arranged in the circuit breaker housing (9) and is located above the tripping member (7).

9. A circuit breaker external accessory linkage structure as claimed in claim 8, characterized in that: The magnetic tripping mechanism (12) and the accessory connecting rod (8) are located at the front and rear sides of the circuit breaker housing (9) in a horizontal inward direction.

10. A circuit breaker external accessory linkage structure as claimed in claim 1, characterized in that: The rotation center of the main body handle (1) is O1, and the rotation center of the mechanism assembly (13) is O2. The rotation center O1 of the main body handle (1) and the rotation center O2 of the mechanism assembly (13) are arranged vertically, and the lock (3), the mechanism seat (14), and the contact seat (15) are coaxially installed in the circuit breaker housing (9).

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