Disconnecting switch driven by excitation mechanism

Abstract

A disconnecting switch driven by an excitation mechanism comprises at least one disconnecting switch body which is spliced side by side, and is characterized in that a moving contact rotating shaft of the at least one disconnecting switch body which is spliced side by side is connected with an operating mechanism; and the excitation mechanism is connected with the operating mechanism and can drive the at least one isolating switch body to perform switching-on and switching-off actions through the operating mechanism. On the basis of existing manual operation, the excitation mechanism is added to drive the disconnecting switch to be switched on and switched off, so that the service life of the operating mechanism is prolonged, and a remote control function of the disconnecting switch is added; meanwhile, the reaction speed of the isolating switch is increased, and the safety performance of the isolating 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 excitation mechanism. Background Art

[0002] As a switching device, the isolating switch is mainly used to "isolate power supply, switch operation, and connect and disconnect low current circuits". When the isolating switch is in the open position, the contacts have an insulation distance that meets the specified requirements and an obvious disconnection mark; when it is in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.

[0003] 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. Utility Model Content

[0004] The purpose of the utility model is to provide an isolating switch driven by an excitation mechanism in view of the defects of the short life of the side operating mechanism of the above-mentioned existing isolating switches and the slow reaction time of the motor drive. On the basis of the existing manual operation, an excitation 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 increases the remote control function of the isolating switch; at the same time, it speeds up the reaction 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 an excitation 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 operating mechanism, and the excitation mechanism is connected to the operating mechanism and can drive the at least one isolating switch body to perform closing and opening actions through the operating mechanism.

[0007] In one embodiment, the excitation mechanism and the operating mechanism are connected together through a connecting rod.

[0008] In one embodiment, the excitation mechanism is placed on the upper side or the lower side of the at least one isolating switch body that is spliced ​​side by side.

[0009] In one embodiment, one end of the connecting rod is pivotally connected to the excitation mechanism, and the other end is hinged to the operating mechanism.

[0010] In one embodiment, the operating mechanism includes a mechanism shaft, which is mounted on a transmission shaft and can rotate synchronously with the transmission shaft. One end of the transmission shaft extends into the at least one isolating switch body and is mounted on a contact support in the moving contact system and can drive the contact support to rotate and then drive the moving contact to rotate.

[0011] In one embodiment, both ends of the transmission shaft are inserted into the support holes on both sides of the bracket through the support shaft, and the positioning pins pass through the transmission shaft and are placed in the positioning pin installation grooves on the sides of both ends of the mechanism shaft.

[0012] In one of the embodiments, a connecting rod installation groove is provided on the outer circumferential surface of the mechanism shaft, and the other end of the connecting rod extends into the connecting rod installation groove and is hingedly installed at the connecting rod installation groove.

[0013] In one embodiment, the operating handle is connected to the operating mechanism and can drive the at least one isolating switch body to perform closing and opening actions through the operating mechanism.

[0014] In one embodiment, the axial center lines of the operating handle, the transmission shaft of the operating mechanism and the rotation center of the moving contact system of the disconnector body overlap.

[0015] In one embodiment, the operating handle can be directly connected to the contact support of the disconnector body through the handle drive shaft.

[0016] Beneficial Effects

[0017] The utility model provides an isolating switch driven by an excitation mechanism, which comprises at least one isolating switch body, the at least one isolating switch body is arranged side by side, the movable contact rotation shaft of the at least one isolating switch body arranged side by side is connected to an operating mechanism, the excitation mechanism is connected to the operating mechanism and can drive the at least one isolating switch body to perform a closing and opening action through the operating mechanism. On the basis of the existing manual operation, an excitation 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 increases the remote control function of the isolating switch; at the same time, the reaction speed of the isolating switch is accelerated, and the safety performance of the isolating switch is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Attached Figure 1 It is a product schematic diagram of an embodiment of the utility model;

[0020] Attached Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0021] Attached Figure 3 It is a schematic diagram of the connection between the excitation mechanism and the operating mechanism in the embodiment of the utility model;

[0022] Attached Figure 4 This is a schematic diagram of the operating mechanism in the embodiment of the utility model;

[0023] Attached Figure 5 This is a schematic diagram of the assembly of the mechanism shaft and the transmission shaft in the embodiment of the utility model;

[0024] Attached Figure 6 This is a schematic diagram of the assembly of the transmission shaft and the moving contact system in the embodiment of the utility model;

[0025] Attached Figure 7 It is a schematic diagram of a connecting rod in an embodiment of the utility model. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Example

[0032] 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 an isolating switch driven by an excitation mechanism, which includes at least one isolating switch body 1, and the at least one isolating switch body 1 is arranged side by side. The isolating switch body 1 includes a switch housing 102, a moving contact system 101 is installed in the switch housing 102 and can rotate, and a static contact 103 is fixed in the switch housing 102. During the rotation of the moving contact system 101, it engages and separates with the corresponding static contact 103 to control the on and off of the isolating switch body 1. The moving contact system 101 of the at least one isolating switch body 1 arranged side by side is connected to the operating mechanism 2, and the excitation mechanism 3 is connected to the operating mechanism 2 and can drive the at least one isolating switch body 1 to perform closing and opening actions through the operating mechanism 2. As shown in the attached Figure 1As shown, the axial direction along the mechanism rotation axis 2a of the operating mechanism 2 is the X direction, and the horizontal plane perpendicular to the X direction is the Y direction. On the plane formed by the X direction and the Y direction, the excitation mechanism 3 is placed on the upper side or lower side of the at least one isolating switch body 1 arranged side by side. In this embodiment, the number of the isolating switch bodies 1 is 2. The excitation mechanism 3 is placed on the upper side of the at least one isolating switch body 1 arranged side by side.

[0033] In detail, it is as follows Figure 3 As shown in FIG. 1 , the excitation mechanism 3 and the operating mechanism 2 are connected together through a connecting rod 4. One end of the connecting rod 4 is pivotally connected to the excitation mechanism 3, and the other end is hinged to the operating mechanism 2. Figure 4 As shown, the operating mechanism 2 includes a mechanism shaft 2a, and the mechanism shaft 2a is mounted on the transmission shaft 2b and can rotate synchronously with the transmission shaft 2b. Figure 6 As shown, one end of the transmission shaft 2b extends into the at least one isolating switch body 1 and is installed on the contact support 101a in the moving contact system 101, and can drive the contact support 101a to rotate through the limit portion 2b01 at the end of the transmission shaft 2b and the upper limit hole 101a01 of the contact support 101a, thereby driving the moving contact 101b to rotate. The two ends of the transmission shaft 2b are installed in the support holes 2d01, 2d01' on both sides of the bracket 2d through the support sleeves 2c, 2c', as shown in the attached Figure 4 As shown, the bracket 2d is composed of a bottom plate and side plates on both sides. During installation, the support sleeves 2c, 2c' are installed in the support holes 2d01, 2d01' on both sides of the bracket 2d, and the two ends of the transmission shaft 2b are installed in the support sleeves 2c, 2c'. Figure 5 As shown, the positioning pin 2f passes through the transmission shaft 2b and is placed in the positioning pin installation grooves 2a01, 2a01' on the sides of the two ends of the mechanism shaft 2a, so that the transmission shaft 2b and the mechanism shaft 2a can be ensured to rotate synchronously, and the axial movement of the transmission shaft 2b can also be avoided. The outer circumferential surface of the mechanism shaft 2a is provided with a connecting rod installation groove 2a02, as shown in the attached Figure 7 The other end of the connecting rod 4 shown extends into the connecting rod installation groove 2a02, and the connecting shaft passes through the connecting holes 2a0201 on both sides of the connecting rod installation groove 2a02 and the hinge hole 401 on the connecting rod 4 so that the other end of the connecting rod 4 is hingedly installed at the connecting rod installation groove 2a02.

[0034] In practical applications, an operating handle can also be used for operation. The operating handle (not shown in the drawings) is connected to one end of the transmission shaft 2b extending from the mechanism shaft 2a and can drive the at least one disconnector body 1 to perform closing and opening actions through the transmission shaft 2b. In order to ensure stable and reliable transmission, the axis center lines of the operating handle, the transmission shaft 2b of the operating mechanism 2 and the rotation center of the moving contact system 101 of the disconnector body 1 overlap.

[0035] In this embodiment, when remote control is required, the excitation mechanism 3 can be controlled to move, and the excitation mechanism 3 automatically drives the connecting rod 4 to move, and the movement of the connecting rod 4 can drive the mechanism shaft 2a to rotate, and the rotation of the mechanism shaft 2a drives the transmission shaft 2b to rotate and then drives the contact support 101a to rotate, and the rotation of the contact support 101a drives the moving contact 101b to rotate to perform the closing and opening actions. When remote control is not required, the operating handle is directly operated, and the operating handle (not shown in the drawings) drives the transmission shaft 2b to rotate through the handle drive shaft, and the transmission shaft 2b drives the at least one disconnector body 1 to perform the closing and opening actions.

[0036] Example 2

[0037] In this embodiment, the operating handle (not shown in the drawings) can be directly connected to the contact support 101a of the isolating switch body 1 through the handle drive shaft (not shown in the drawings) without the need for the operating mechanism 2. This can also speed up the response speed of the isolating switch and improve the safety performance of the isolating switch. The other structures are the same as those in Embodiment 1.

[0038] 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.

[0039] 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 an excitation mechanism, comprising at least one disconnector body (1), wherein the at least one disconnector body (1) is arranged in parallel and is characterized in that The moving contact system (101) of the at least one isolating switch body (1) arranged in parallel is connected to the operating mechanism (2), and the excitation mechanism (3) is connected to the operating mechanism (2) and can drive the at least one isolating switch body (1) to perform closing and opening actions through the operating mechanism (2).

2. A disconnector driven by an excitation mechanism as claimed in claim 1, characterized in that The excitation mechanism (3) and the operating mechanism (2) are connected together via a connecting rod (4).

3. A disconnector driven by an excitation mechanism as claimed in claim 1, characterized in that The excitation mechanism (3) is placed on the upper side or the lower side of the at least one isolating switch body (1) which is arranged in parallel.

4. A disconnector driven by an excitation mechanism as claimed in claim 2, characterized in that One end of the connecting rod (4) is pivotally connected to the excitation mechanism (3), and the other end is hinged to the operating mechanism (2).

5. A disconnector driven by an excitation mechanism as claimed in claim 1, characterized in that The operating mechanism (2) comprises a mechanism rotating shaft (2a), the mechanism rotating shaft (2a) being mounted on a transmission shaft (2b) and being capable of rotating synchronously with the transmission shaft (2b), one end of the transmission shaft (2b) extending into the at least one isolating switch body (1) and being mounted on a contact support (101a) in the moving contact system (101) and being capable of driving the contact support (101a) to rotate and thereby driving the moving contact (101b) to rotate.

6. A disconnector driven by an excitation mechanism as claimed in claim 5, characterized in that The two ends of the transmission shaft (2b) are mounted in the support holes (2d01, 2d01') on both sides of the bracket (2d) through support sleeves (2c, 2c'); the positioning pin (2f) passes through the transmission shaft (2b) and is placed in the positioning pin mounting grooves (2a01, 2a01') on the side surfaces of the two ends of the mechanism shaft (2a).

7. A disconnector driven by an excitation mechanism as claimed in claim 6, characterized in that A connecting rod installation groove (2a02) is provided on the outer circumferential surface of the mechanism rotating shaft (2a), and the other end of the connecting rod (4) extends into the connecting rod installation groove (2a02) and is hingedly installed at the connecting rod installation groove (2a02).

8. A disconnector driven by an excitation mechanism as claimed in claim 1, characterized in that The operating handle is connected to the operating mechanism (2) and can drive the at least one isolating switch body (1) to perform closing and opening actions through the operating mechanism (2).

9. A disconnector driven by an excitation mechanism as claimed in claim 8, characterized in that The axis center lines of the operating handle, the transmission shaft (2b) of the operating mechanism (2) and the rotation center of the moving contact system (101) of the isolating switch body (1) overlap.

10. A disconnector driven by an excitation mechanism as claimed in claim 1, characterized in that The operating handle can be directly connected to the contact support (101a) of the isolating switch body (1) via the handle drive shaft.

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