Isolating switch driven by operating mechanism of molded case circuit breaker

Abstract

An isolating switch driven by a molded case circuit breaker operating mechanism comprises at least one isolating switch body which is spliced side by side, and is characterized in that a moving contact system of the at least one isolating switch body which is spliced side by side is connected with the molded case operating mechanism; and the plastic shell type operating mechanism can drive the at least one isolating switch body to perform switching-on and switching-off actions in the action process. On the basis of the existing manual operation, the operating mechanism of the molded case circuit breaker is added to drive the disconnecting switch to open and close, so that the service life of the operating mechanism is prolonged, the response speed of the disconnecting switch is accelerated, and the safety performance of the disconnecting switch is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of isolating switches, and specifically relates to an isolating switch driven by an operating mechanism of a molded case circuit breaker. Background Art

[0002] For low-voltage switch products, such as disconnectors, most products on the market use manual operating mechanisms to connect and disconnect the main switch. The side tripping mechanism of traditional disconnectors has a low lifespan, less than 5,000 times. It is also difficult to add a remote tripping function to traditional disconnectors. When a fault occurs, remote control of the disconnection is impossible; even if a motor drive is added, the response time will be about 1 second slower, making it difficult to meet the requirements for disconnector product performance in existing technologies, especially in DC power systems.

[0003] Chinese patent 201710998633.X discloses an electrically driven low-voltage disconnector, comprising: a disconnector, a first gear, a second gear, a first crank, a connecting rod, a second crank and a motor; characterized in that: the output shaft of the motor is connected to the center hole of the second gear and fixedly connected; the teeth of the second gear mesh with the teeth of the first gear; the hole at the lower end of the first crank is connected to the center hole of the first gear and fixedly connected; the hole at the upper end of the first crank is hinged with the hole at the right end of the connecting rod through an axis, and the clearance fits; the hole at the left end of the connecting rod is hinged with the hole at the upper end of the second crank, and the clearance fits; the hole at the lower end of the second crank is fixedly sleeved with the exposed shaft on the disconnector for driving the disconnector to open and close. The disconnector is provided with a power transmission mechanism of a motor, a gear, a crank and a connecting rod to realize the opening and closing of the disconnector driven by the motor. It overcomes the damage to the operator caused by misoperation and the damage to the electrical equipment caused by close-range live operation. However, the disconnector has high cost, does not have a remote control function, or the remote control process is complicated. Utility Model Content

[0004] The purpose of the utility model is to provide an isolating switch driven by a molded case circuit breaker operating mechanism in view of the defects of the above-mentioned existing isolating switches that are high in cost through motor control, do not have a remote control function, or have a complicated remote control process. On the basis of the existing manual operation, the molded case circuit breaker operating mechanism is added to drive the closing and opening of the isolating switch, which not only prolongs the service life of the operating mechanism, but also increases the remote control function of the isolating switch; at the same time, it speeds up the response speed of the isolating switch and improves the safety performance of the isolating switch.

[0005] Technical Solution

[0006] In order to achieve the above technical objectives, the utility model provides an isolating switch driven by a molded case circuit breaker operating mechanism, which includes at least one isolating switch body, and the at least one isolating switch body is arranged in parallel, and is characterized in that: the moving contact system of the at least one isolating switch body arranged in parallel is connected to the molded case operating mechanism, and the molded case operating mechanism can drive the at least one isolating switch body to perform closing and opening actions during operation.

[0007] In one embodiment, the molded case operating mechanism drives the contact support of the moving contact system of the at least one isolating switch body to rotate through a linkage shaft, thereby driving the moving contact to rotate.

[0008] In one embodiment, the linkage shaft extends from the molded case operating mechanism and then links with the linkage portion on the contact support.

[0009] In one embodiment, a force arm exists between the interaction force between the linkage shaft and the linkage portion and the rotation center of the contact support.

[0010] In one of the embodiments, the linkage portion is a hole groove on a side surface of the contact support corresponding to the molded case operating mechanism b.

[0011] In one embodiment, the linkage shaft extends from the connecting rod mechanism b01 on the molded case operating mechanism.

[0012] In one embodiment, the molded case operating mechanism is placed on the left or right side of the at least one isolating switch body that is spliced ​​side by side.

[0013] In one embodiment, the rotation center of the operating handle of the molded case operating mechanism overlaps with the axial center line of the rotation center of the moving contact system of the disconnector body.

[0014] In one embodiment, the molded case operating mechanism is connected to a tripping mechanism or an operating handle outside the cabinet.

[0015] Beneficial Effects

[0016] The utility model provides an isolating switch driven by a molded case circuit breaker operating mechanism, comprising at least one isolating switch body, wherein the at least one isolating switch body is arranged in parallel, and is characterized in that: the moving contact system of the at least one isolating switch body arranged in parallel is connected to the molded case operating mechanism, and the molded case operating mechanism can drive the at least one isolating switch body to perform a closing and opening action during the operation process. On the basis of the existing manual operation, the molded case circuit breaker operating mechanism is added to drive the isolating switch to close and open, which not only prolongs the service life of the operating mechanism, but also speeds up the reaction speed of the isolating switch and improves the safety performance of the isolating switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 present invention 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.

[0018] Attached Figure 1 It is a product schematic diagram of an embodiment of the utility model;

[0019] Attached Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0020] Attached Figure 3 Yes Figure 2 A-axis sectional view; DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Example

[0027] The existing side operating mechanism of the isolating switch has a short life and the motor drive has a slow response time. In order to solve this problem, the following Figure 1 and 2 As shown, this embodiment provides a disconnector driven by a molded case circuit breaker operating mechanism, which includes at least one disconnector body a, and the at least one disconnector body a is spliced ​​side by side. The disconnector body a includes a switch housing (not shown in the drawings), and the moving contact system a01 is installed in the switch housing and can rotate, and the static contact a02 is fixed in the switch housing. During the rotation of the moving contact system a01, it engages and separates with the corresponding static contact a02 to control the on and off of the disconnector body a. Among them, the moving contact system a01 of the at least one disconnector body a spliced ​​side by side is connected to a molded case operating mechanism b, and during the operation of the molded case operating mechanism b, it can drive the at least one disconnector body a to perform closing and opening actions. As shown in the attached Figure 1As shown, the axial direction along which the rotating center of the moving contact system a01 of the isolating switch body a is located is the X direction, and on the horizontal plane where the X direction is located, the molded case operating mechanism b is placed on the left or right side of the at least one isolating switch body a arranged side by side. In this embodiment, there are two isolating switch bodies a. The molded case operating mechanism b is placed on the left side of the two isolating switch bodies a arranged side by side.

[0028] Specifically, as attached: Figure 2 and 3 As shown, the molded case operating mechanism b drives the contact support a0101 of the moving contact system a01 of at least one isolating switch body a to rotate through the linkage shaft c, thereby driving the moving contact a0102 to rotate. Figure 3 As shown, the linkage shaft c extends from the molded case operating mechanism b and then links with the linkage part a010101 on the contact support a0101. Further explanation is that in this embodiment, the linkage shaft c preferably extends from the connecting rod mechanism b01 on the molded case operating mechanism b. Of course, the linkage shaft c is set on other movable parts on the molded case operating mechanism b. Figure 3 As shown, there is a force arm L between the interaction force between the linkage shaft c and the linkage part a010101 and the rotation center of the contact support a0101. The linkage part a010101 is preferably a hole groove on a side of the contact support corresponding to the molded case operating mechanism b.

[0029] In order to provide reliability and stability of operation, the rotation center of the operating handle of the molded case operating mechanism b overlaps with the axial center line o of the rotation center of the moving contact system a01 of the disconnector body a.

[0030] At the same time, the molded case operating mechanism b can also be connected to a tripping mechanism or an operating handle outside the cabinet. The tripping mechanism is a motor or a tripping electromagnet for realizing electric operation, while the operating handle outside the cabinet realizes manual operation outside the cabinet.

[0031] In this embodiment, during the movement of the operating handle of the molded case operating mechanism b, the linkage shaft c is driven to drive the contact support a0101 of the moving contact system a01 of at least one isolating switch body a to rotate, thereby driving the moving contact a0102 to rotate, thereby realizing the opening and closing of the isolating switch.

[0032] 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.

[0033] 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 disconnector driven by a molded case circuit breaker operating mechanism, comprising at least one disconnector body (a), wherein the at least one disconnector body (a) is arranged in parallel and is characterized in that The moving contact system (a01) of at least one isolating switch body (a) arranged in parallel is connected to a molded case operating mechanism (b), and the molded case operating mechanism (b) can drive at least one isolating switch body (a) to close or open the switch during operation.

2. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 1, characterized in that The molded case operating mechanism (b) drives the contact support (a0101) of the moving contact system (a01) of at least one isolating switch body (a) to rotate through the linkage shaft (c), thereby driving the moving contact (a0102) to rotate.

3. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 2, characterized in that : The linkage shaft (c) extends from the molded shell operating mechanism (b) and then links with the linkage part (a010101) on the contact support (a0101).

4. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 3, characterized in that : There is a force arm (L) between the interaction force between the linkage shaft (c) and the linkage part (a010101) and the rotation center of the contact support (a0101).

5. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 4, characterized in that :The linkage portion (a010101) is a hole groove on the side of the contact support corresponding to the molded case operating mechanism (b).

6. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 3, characterized in that :The linkage shaft (c) extends from the connecting rod mechanism (b01) on the molded shell operating mechanism (b).

7. A disconnector driven by a molded case circuit breaker operating mechanism as claimed in claim 1, characterized in that :The molded case operating mechanism (b) is placed on the left or right side of the at least one isolating switch body (a) arranged side by side.

8. The isolating switch driven by the operating mechanism of a molded case circuit breaker according to claim 1, characterized in that : The rotation center of the operating handle of the molded case operating mechanism (b) overlaps with the axial center line (o) of the rotation center of the moving contact system (a01) of the disconnector body (a).

9. The isolating switch driven by the operating mechanism of a molded case circuit breaker according to claim 1, characterized in that : The molded case operating mechanism (b) is connected to a tripping mechanism or an operating handle outside the cabinet.

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