Auxiliary switch of isolating switch
By designing the shaft to drive the push rod, the motion transmission is simplified, and the traditional isolation switch auxiliary switch has solved the problems of many parts, large space and insensitive, and the reliability and sensitivity improvement in high-performance DC usage environment is achieved.
Patent Information
- Application Number
- CN202422325561.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The auxiliary switch trigger structure parts of traditional isolating switches have a large number of auxiliary switches, which occupy a large space, are high in cost and are not sensitive, and are prone to jamming, making it difficult to meet the needs of high-performance DC usage environments.
An auxiliary switch of isolating switch is designed to drive the push rod through the rotation shaft. The push rod acts on the auxiliary switch contacts, simplifying the action transmission process, and ensuring the operation reliability using linkage protrusions and return springs.
It realizes the reliability and sensitivity of auxiliary switches, simplifies the action transfer process, reduces the number and cost of parts, and adapts to high-performance DC usage environment.
Smart Images
Figure CN223155896U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of low-voltage electrical appliances, and specifically relates to an auxiliary switch of a disconnector. Background Art
[0002] As a switching device, a disconnector is mainly used for "isolating power supply, switching operation, and connecting and disconnecting small-current circuits". When the disconnector is in the off position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when in the on position, it is a switching device that can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.
[0003] With the improvement of product performance indicators, taking the DC operating environment as an example, the rated operating voltage has been increased to DC1500V, and the requirements for product performance levels are getting higher and higher. However, in the traditional auxiliary contact switching process, most of the trigger structure parts of the auxiliary switch have a large number, occupy a large space, and have a high cost. The trigger of the auxiliary switch is not sensitive and is prone to jamming. Summary of the Utility Model
[0004] The purpose of the utility model is to address the defects of the existing disconnector, such as the scattered structure layout of each part, large volume, poor breaking performance, insensitive trigger of the auxiliary switch, and easy jamming. An auxiliary switch of a disconnector is provided. By rotating the rotating shaft to drive the push rod, and the push rod acts on the auxiliary switch contact to release the closing and opening signals, the action transmission process is simplified, and the reliability of the action transmission is ensured.
[0005] Technical Solution
[0006] To implement the above technical purpose, the utility model provides an auxiliary switch of a disconnector, which includes a control module. A number of auxiliary switch groups are arranged in a stacked manner beside the rotating shaft in the control module. During the rotation of the rotating shaft, the corresponding state of the disconnector can be displayed by triggering the corresponding auxiliary switch group. It is characterized in that: the rotating shaft is installed in the control module housing and can rotate. A linkage protrusion is provided on the outer surface of the rotating shaft. During the rotation of the rotating shaft, the push rod can be driven through the linkage protrusion, and during the movement of the push rod, the corresponding auxiliary switch group on one side can be triggered.
[0007] In some solutions, the number of auxiliary switch groups is symmetrically arranged on both sides of the rotating shaft.
[0008] In some solutions, the push rod is connected with a return spring. After the linkage protrusion leaves the push rod, the return spring provides a return force to the push rod to make it leave the corresponding auxiliary switch group.
[0009] In some solutions, the push rod is installed inside the control module housing and can move in the chute inside the control module housing.
[0010] In some solutions, the linkage protrusion is a triangular linkage protrusion.
[0011] In some solutions, the return spring is placed on one side of the push rod, opposite to the linkage protrusion. The return spring is located in the spring installation groove of the control module housing, with one end abutting against the push rod and the other end abutting against the groove wall of the spring installation groove.
[0012] In some solutions, one end of the return spring is sleeved on the convex column of the push rod.
[0013] In some solutions, the side surface of the push rod corresponding to the linkage protrusion is a plane.
[0014] In some solutions, there are 2 auxiliary switches on each side in several auxiliary switch groups symmetrically stacked on both sides of the rotating shaft.
[0015] In some solutions, one end of the rotating shaft extends out of the control module housing and is connected to the operating handle, and the other end is connected to the moving contact rotating shaft in the contact module through a turntable to drive the moving contact in linkage. There is also an energy storage spring group arranged below the several auxiliary switch groups inside the control module housing. During the rotation of the rotating shaft, the energy storage spring group can be driven to store energy.
[0016] Beneficial Effects
[0017] An auxiliary switch of a disconnector provided by the present utility model includes a control module. A number of auxiliary switch groups are stacked beside the rotating shaft in the control module. During the rotation of the rotating shaft, the corresponding state of the disconnector can be displayed by triggering the corresponding auxiliary switch group. It is characterized in that: the rotating shaft is installed inside the control module housing and can rotate. A linkage protrusion is arranged on the outer surface of the rotating shaft. During the rotation of the rotating shaft, the push rod can be driven through the linkage protrusion. During the movement of the push rod, the corresponding auxiliary switch group on one side can be triggered. The disconnector drives the push rod through the rotation of the rotating shaft, acts on the auxiliary switch contact by the push rod, and releases the closing and opening signals, simplifying the action transmission process and ensuring the reliability of the action transmission. Description of the Drawings
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0019] AppendixFigure 1 It is a schematic diagram of the internal structure of the disconnecting switch in the embodiment of the present utility model.
[0020] Appendix Figure 2 It is a schematic diagram of the structure of the control module in the embodiment of the present utility model Figure 1 .
[0021] Appendix Figure 3 It is a schematic diagram of the structure of the control module in the embodiment of the present utility model Figure 2 .
[0022] Appendix Figure 4 It is a schematic diagram of the structure of the contact module in the embodiment of the present utility model. Detailed implementation manners
[0023] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0024] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.
[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0026] 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 in contact indirectly 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.
[0027] 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.
[0028] Example
[0029] As shown in the accompanying drawings, 2 and 3, an auxiliary switch of an isolating switch comprises a control module 1, and a plurality of auxiliary switch groups 102 are arranged on the side of a rotating shaft 101 in the control module 1. During the rotation of the rotating shaft 101, the corresponding state of isolation can be displayed by triggering the corresponding auxiliary switch group 102. In this embodiment, there are two auxiliary switches on each side of the plurality of auxiliary switch groups 102 symmetrically arranged on both sides of the rotating shaft 101, so that the contact signal 102a of the auxiliary switch can be triggered no matter which direction the rotating shaft rotates. Thus, the corresponding state of the isolating switch can be displayed, that is, the connection and disconnection signals of the isolating switch circuit, as well as the state of remote signal transmission and multiple identical signal transmission.
[0030] As attached Figure 1 As shown, one end of the shaft 101 extends out of the control module housing 103 and is connected to the operating handle 106, and the other end is connected to the control module housing 103 through the rotating disk 107. Figure 4 The moving contact shaft 202 in the contact module 2 is connected to the moving contact 201, and the control module housing 103 is provided with an energy storage spring group 108 below the auxiliary switch groups 102. The rotating shaft 101 can drive the energy storage spring group 108 to store energy during rotation. Figure 3As shown, specifically, the rotating shaft 101 is connected to the convex post 110a on the sliding plate 110 through the linkage groove 109a on the disk 109 provided thereon. The rotation of the rotating shaft 101 can drive the linear motion of the sliding plate 110. The lug on the sliding plate 110 drives the turntable 107 to rotate, and the turntable 107 further compresses the energy storage spring group 108 for energy storage. When the turntable 107 rotates past the dead point, the turntable 107 continues to rotate under the action of the energy release of the energy storage spring group 108, and the continuous rotation of the turntable 107 drives the moving contact 201 and the static contact 203 to close.
[0031] As shown in the appendix Figure 2 As shown, the rotating shaft 101 is installed in the control module housing 103 and can rotate. A linkage protrusion 101a is provided on the outer surface of the rotating shaft 101. During the rotation of the rotating shaft 101, the linkage protrusion 101a can drive the push rod 104 to move. The push rod 104 is installed in the control module housing 103 and can move in the chute 103a in the control module housing 103. In this embodiment, the linkage protrusion 101a is a triangular linkage protrusion. The side surface of the push rod 104 corresponding to the linkage protrusion 101a is a plane.
[0032] During the movement of the push rod 104, it can trigger the auxiliary switch group 102 on the corresponding side. The several auxiliary switch groups 102 are symmetrically arranged on both sides of the rotating shaft 101. The push rod 104 is connected with a return spring 105. After the linkage protrusion 101a leaves the push rod 104, the return spring 105 provides a return force for the push rod 104 to make it leave the auxiliary switch group 102 on the corresponding side. The return spring 105 is placed on one side of the push rod 104 and is opposite to the linkage protrusion 101a. The return spring 105 is located in the spring installation groove 103b of the control module housing 103, with one end abutting against the push rod 104 and the other end abutting against the groove wall of the spring installation groove 103b. Preferably, one end of the return spring 105 is sleeved on the convex post 104a of the push rod 104.
[0033] When the rotating shaft rotates under the action of an external force to drive the moving contact to rotate and contact the static contact, the linkage protrusion 101a drives the push rod 104 to move. During the movement of the push rod 104, it can trigger the contact signal 102a of the auxiliary switch group 102 on the corresponding side to send out a closing signal as shown in the appendix Figure 1 As shown. When the rotating shaft rotates under the action of an external force to drive the moving contact to rotate and separate from the static contact, the linkage protrusion 101a leaves the push rod 104, and the push rod 104 moves away from the auxiliary switch group 102 under the action of the return spring to send out a tripping signal as shown in the appendix Figure 2 As shown.
[0034] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope recorded in this specification.
[0035] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. An auxiliary switch for a disconnector, which comprises a control module (1). A plurality of auxiliary switch groups (102) are arranged in a stacked manner beside a rotating shaft (101) in the control module (1). During the rotation of the rotating shaft (101), the corresponding state of the disconnector can be displayed by triggering the corresponding auxiliary switch group (102). It is characterized in that: The rotating shaft (101) is installed in the control module housing (103) and can rotate. A linkage protrusion (101a) is provided on the outer surface of the rotating shaft (101). During the rotation of the rotating shaft (101), the linkage protrusion (101a) can drive the push rod (104) to move, and during the movement of the push rod (104), the corresponding auxiliary switch group (102) on one side can be triggered.
2. The auxiliary switch of a disconnecting switch according to claim 1, characterized in that: The several auxiliary switch groups (102) are symmetrically arranged on both sides of the rotating shaft (101).
3. The auxiliary switch of a disconnector according to claim 1, characterized in that: The push rod (104) is connected with a return spring (105). After the linkage protrusion (101a) leaves the push rod (104), the return spring (105) provides a return force to the push rod (104) to make it leave the auxiliary switch group (102) on the corresponding side.
4. The auxiliary switch of a disconnector according to claim 1, characterized in that: The push rod (104) is installed in the control module housing (103) and can move in a chute (103a) in the control module housing (103).
5. The auxiliary switch of a disconnector according to claim 1, characterized in that: The linkage protrusion (101a) is a triangular linkage protrusion.
6. The auxiliary switch of a disconnector according to claim 3, characterized in that: The return spring (105) is placed on one side of the push rod (104) and is opposite to the linkage protrusion (101a). The return spring (105) is located in a spring installation groove (103b) of the control module housing (103), with one end abutting against the push rod (104) and the other end abutting against the groove wall of the spring installation groove (103b).
7. The auxiliary switch of a disconnector according to claim 6, characterized in that: One end of the return spring (105) is sleeved on a convex column (104a) of the push rod (104).
8. The auxiliary switch of a disconnector according to claim 1, characterized in that: The side surface of the push rod (104) corresponding to the linkage protrusion (101a) is a plane.
9. The auxiliary switch of a disconnector according to claim 1, characterized in that: Among the several auxiliary switch groups (102) symmetrically stacked on both sides of the rotating shaft (101), there are 2 auxiliary switches on each side.
10. The auxiliary switch of a disconnecting switch according to claim 1, characterized in that: One end of the rotating shaft (101) extends out of the control module housing (103) and is connected to an operating handle (106), and the other end is connected to a moving contact rotating shaft (202) in a contact module (2) through a turntable (107) to further drive a moving contact (201). An energy storage spring group (108) is also provided below the several auxiliary switch groups (102) in the control module housing (103). During the rotation of the rotating shaft (101), the energy storage spring group (108) can be driven to store energy.