Switch state visualization safety measure cover plate, breaking assembly and relay protection screen cabinet

Abstract

The invention relates to an on-off state visualization safety measure cover plate which is used for being matched with a current and voltage terminal row for use, the on-off state visualization safety measure cover plate comprises a protection buckle plate, the protection buckle plate comprises a plate main body, a first wing plate and a second wing plate, the first wing plate is connected to a first side, and one side, away from the plate main body, of the first wing plate is provided with a first connecting part; a second connecting part is arranged on the side, away from the plate body, of the second wing plate, and a visible window is formed in the plate body; the current and voltage terminal strip comprises a terminal strip seat and a switch lock assembly, a first matching part and a second matching part are arranged on the two opposite sides of the terminal strip seat respectively, the first connecting part is detachably connected with the first matching part, the second connecting part is detachably connected with the second matching part, and the switch lock assembly is movably arranged on the terminal strip seat. The switch lock assembly is provided with a first indicating part and a second indicating part, the switch lock assembly is located at the breaking position, the first indicating part is opposite to the visible window, the switch lock assembly is located at the connecting position, and the second indicating part is opposite to the visible window.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a switch status visualization safety cover, a disconnecting assembly and a relay protection panel cabinet. Background Art

[0002] ‌Relay protection cabinet‌ refers to the relay protection and safety automatic device cabinet of the power system. It is composed of a cabinet and relay protection devices, safety automatic devices and their supporting equipment and auxiliary components installed on the cabinet, and is used to realize specific functions of the power system. The main function of the relay protection cabinet is to protect the power system from faults and abnormal operating conditions and ensure the stable operation of the power system. It monitors various parameters of the power system, such as current, voltage and power. When an abnormal situation is detected, the relay protection cabinet will take measures quickly, such as cutting off the fault circuit, to prevent equipment damage or the expansion of the accident. In addition, the relay protection cabinet also has functions such as automatic reclosing and automatic input of backup power supply, which further improves the reliability and safety of the power system. Relay protection cabinets are widely used in various power systems, including substations, power plants, transmission lines, etc. It can adapt to different power demands and environmental conditions to ensure the stable operation and safe operation of the power system.

[0003] At present, in order to ensure the safe and reliable operation of the relay protection cabinet, it is necessary to test its working performance regularly, such as connecting the secondary circuit of the current transformer inside it to the external test equipment for disconnection test. Then, the disconnection process requires the disconnection operation of the disconnection isolation component, but due to factors such as structural design defects, there are problems such as the disconnection position is not visible, which leads to disconnection misoperation, and lack of reliable isolation protection during operation, which affects the safety and reliability of equipment operation and maintenance. Summary of the invention

[0004] Based on this, it is necessary to provide a switch status visualization safety cover, disconnecting assembly and relay protection cabinet to address the problems of disconnection misoperation, lack of isolation protection, and impact on the safety and reliability of equipment operation and maintenance.

[0005] In a first aspect of the present application, a switch state visualization cover is provided, which is used in combination with a current and voltage terminal block, and the switch state visualization cover comprises:

[0006] A protective gusset plate, the protective gusset plate comprising a plate body, a first wing plate and a second wing plate, the plate body comprising a first side and a second side arranged opposite to each other, the first wing plate being connected to the first side, a first connecting portion being arranged on a side of the first wing plate away from the plate body, the second wing plate being connected to the second side, a second connecting portion being arranged on a side of the second wing plate away from the plate body, and the plate body being provided with a visual window penetrating the plate thickness direction thereof;

[0007] The current and voltage terminal block includes a terminal block seat and a switch lock assembly, wherein a first mating portion and a second mating portion are respectively provided on opposite sides of the terminal block seat, wherein the first connecting portion is detachably connected to the first mating portion, and the second connecting portion is detachably connected to the second mating portion, and the switch lock assembly is movably arranged on the terminal block seat, and wherein the switch lock assembly is provided with a first indicating portion and a second indicating portion spaced apart along a moving direction thereof, wherein when the switch lock assembly is in a disconnecting position, only the first indicating portion is opposite to the visible window, and when the switch lock assembly is in a connecting position, only the second indicating portion is opposite to the visible window.

[0008] When the switch status visualization security cover of the present scheme is working, it is assembled and used with the current and voltage terminal block. Specifically, the protective buckle plate is installed above the current and voltage terminal block, and is respectively connected through the first connecting portion and the first matching portion and the second connecting portion and the second matching portion, so that the protective buckle plate is assembled and fixed to the current and voltage terminal block. On this basis, when the switch lock assembly is slid to the on position, only the second indicator portion is opposite to the visual window. At this time, the operation and maintenance operator can visually observe through the visual window that the switch lock assembly has moved to the on position. When performing the disconnection operation, the switch lock assembly is slid from the on position to the disconnection position. At this time, only the first indicator portion is opposite to the visual window. The operation and maintenance operator can visually observe through the visual window that the switch lock assembly has moved to the disconnection position, thereby ensuring that the operation and maintenance operator performs accurate disconnection operations and prevents misoperation. In addition, during the entire operation process, the protective buckle plate can play an isolation and protection role to ensure the safety of the operation and maintenance operators and improve the safety and reliability of the equipment.

[0009] The technical solution of this application is further described below:

[0010] In one embodiment, the first wing plate is set at an angle with the plate body, and the first wing plate is tilted in a direction away from the second wing plate; the second wing plate is set at an angle with the plate body, and the second wing plate is tilted in a direction away from the first wing plate.

[0011] In one embodiment, the first connecting portion and the second connecting portion are both configured as hooks, the first matching portion and the second matching portion are both provided with buckles, and the hooks and the buckles are detachably buckled and connected.

[0012] In one of the embodiments, the terminal block is further provided with an escape groove, the buckle position is formed inside the escape groove, and the hook extends into the escape groove to engage with the buckle position.

[0013] In one of the embodiments, the first wing plate and the second wing plate are both recessed inwardly at sides away from the plate body to form a wire outlet groove, and the wires of the current and voltage terminal block pass through the wire outlet groove to the outside of the switch status visualization cover plate, and the wires abut against the groove wall of the wire outlet groove.

[0014] In one embodiment, the visible window is a long strip structure, and the length direction of the visible window is consistent with the length direction of the board body and the moving direction of the switch lock assembly.

[0015] In one of the embodiments, at least two of the visible windows are provided, and the at least two visible windows are arranged side by side at intervals along the width direction of the plate body, and each of the visible windows is provided in cooperation with a corresponding switch lock assembly.

[0016] In one embodiment, a first grip portion is provided on the outer side of a connection between the plate body and the first wing plate, and a second grip portion is provided on the outer side of a connection between the plate body and the second wing plate.

[0017] According to a second aspect of the present application, a disconnecting assembly is provided, comprising the switch status visualization cover plate as described above.

[0018] A third aspect of the present application further provides a relay protection screen cabinet, comprising the disconnecting assembly as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] FIG. 1 is a schematic structural diagram of a disconnect assembly according to an embodiment in a connected state.

[0022] FIG. 2 is a schematic structural diagram of a disconnecting component in a disconnecting state.

[0023] Description of reference numerals:

[0024] 100. Disconnection assembly; 10. Switch status visualization cover; 11. Protective buckle plate; 111. Plate body; 111a. Visual window; 112. First wing plate; 113. Second wing plate; 11a. Hook; 12. First gripping part; 13. Second gripping part; 20. Current and voltage terminal block; 21. Terminal block seat; 211. Buckle position; 212. Avoidance groove; 213. Wire outlet slot; 22. Switch lock assembly; 221. First indication part; 222. Second indication part. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 therefore cannot be understood as a limitation on the present application.

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

[0028] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0031] Referring to Figures 1 and 2, a switch status visualization safety cover 10 is shown in an embodiment of the present application, which is used for assembly with a current and voltage terminal block 20. The switch status visualization safety cover 10 includes: a protective buckle plate 11, the protective buckle plate 11 includes a plate body 111, a first wing plate 112 and a second wing plate 113, the plate body 111 includes a first side and a second side arranged opposite to each other, the first wing plate 112 is connected to the first side, and a first connecting portion is provided on a side of the first wing plate 112 away from the plate body 111, the second wing plate 113 is connected to the second side, and a second connecting portion is provided on a side of the second wing plate 113 away from the plate body 111, and the plate body 111 is provided with a visible window 111a running through the plate thickness direction.

[0032] In addition, the current and voltage terminal block 20 that matches the switch status visualization cover plate 10 includes a terminal block seat 21 and a switch lock assembly 22. The first matching portion and the second matching portion are respectively provided on opposite sides of the terminal block seat 21. The first connecting portion is detachably connected to the first matching portion, and the second connecting portion is detachably connected to the second matching portion. The switch lock assembly 22 is movably arranged on the terminal block seat 21. The switch lock assembly 22 is provided with a first indicating portion 221 and a second indicating portion 222 spaced apart along its moving direction. When the switch lock assembly 22 is in the disconnected position, only the first indicating portion 221 is opposite to the visible window 111a. When the switch lock assembly 22 is in the connected position, only the second indicating portion 222 is opposite to the visible window 111a.

[0033] That is to say, through the visual window 111a, the operation and maintenance personnel can visually view the movement status and position of the switch lock assembly 22 from the outside through the visual window 111a, which is convenient for judging and verifying the position of the switch lock assembly 22.

[0034] In summary, the implementation of the technical solution of this embodiment will achieve the following beneficial effects: when the switch status visualization cover plate 10 of this solution is working, it is assembled and used with the current and voltage terminal block 20. Specifically, the protective buckle plate 11 is installed above the current and voltage terminal block 20. However, the first connecting portion is connected to the first matching portion and the second connecting portion is connected to the second matching portion, so that the protective buckle plate 11 is assembled and fixed to the current and voltage terminal block 20. On this basis, when the sliding switch lock assembly 22 is to the on position, only the second indicator portion 222 is opposite to the visual window 111a. At this time, the operation and maintenance operator can see through the second indicator portion 222. The visual window 111a can visually observe that the switch lock assembly 22 has moved to the on position. When performing the disconnecting operation, the switch lock assembly 22 is slid from the on position to the disconnecting position. At this time, only the first indicator part 221 is opposite to the visual window 111a. The operation and maintenance operator can visually observe through the visual window that the switch lock assembly 22 has moved to the disconnecting position, thereby ensuring that the operation and maintenance operator can perform accurate disconnecting operations and prevent misoperation. In addition, during the entire operation process, the protective buckle plate 11 can play an isolation and protection role to ensure the safety of the operation and maintenance operators and improve the safety and reliability of the equipment.

[0035] It is necessary to explain that in the present application, the protective buckle plate 11 is made of insulating material, such as plastic, resin, composite material, etc.

[0036] Please continue to refer to Figure 1. In one embodiment, the first wing plate 112 is set at an angle with the plate body 111, and the first wing plate 112 is tilted in a direction away from the second wing plate 113; the second wing plate 113 is set at an angle with the plate body 111, and the second wing plate 113 is tilted in a direction away from the first wing plate 112.

[0037] Preferably, the first wing plate 112, the board body 111 and the second wing plate 113 adopt an integrated structure, which has high strength, good structural integrity, few parts, and is convenient for installation and disassembly. The first wing plate 112 and the second wing plate 113 are inclined toward the two opposite outer sides of the board body 111 to form a flared structure with a larger opening area, which is easier to be plugged and assembled with the terminal block 21, and is convenient to install and use.

[0038] For example, the protective buckle plate 11 can be formed by bending a whole plate.

[0039] In an optional embodiment, the first connection portion and the second connection portion are both configured as hooks 11a, the first mating portion and the second mating portion are both provided with buckle positions 211, and the hooks 11a are detachably buckled with the buckle positions 211. The above-mentioned buckle connection method makes it easy to install or remove the protective buckle plate 11 and the terminal block 21, with high connection strength and good reuse performance.

[0040] Of course, in other optional embodiments, the above-mentioned snap connection method can also be replaced by screw connection, magnetic connection, bonding, etc., which are also within the protection scope of this application and will not be described in detail here.

[0041] Please continue to refer to Figure 1. In order to prevent the hook 11a from being interfered when the protective buckle plate 11 is connected to the terminal block 21, the terminal block 21 is also concavely provided with an avoidance groove 212. The buckle position 211 is formed inside the avoidance groove 212, and the hook 11a extends into the avoidance groove 212 and is connected to the buckle position 211.

[0042] It should be noted that the hook 11a is made of elastic material, has good elastic deformation ability, is not prone to irreversible deformation or even breakage under repeated hook force, and has strong durability.

[0043] In addition, based on any of the above embodiments, the first wing plate 112 and the second wing plate 113 are both recessed inwardly to form a wire outlet groove 213 on the sides away from the plate body 111, and the wires of the current and voltage terminal row 20 pass through the wire outlet groove 213 to the outside of the switch state visualization cover plate 10, and the wires abut against the groove wall of the wire outlet groove 213. The wire outlet groove 213 is provided to facilitate the wires of the terminals inside the terminal row seat 21 to pass through and extend to the outside for wiring, and the size of the wire outlet groove 213 is reasonably designed, and the wires are pressed by the groove side wall of the wire outlet groove 213, so as to prevent them from loosening.

[0044] In the present application, the visual window 111a is a long strip structure, for example, the visual window 111a is a rectangular structure, with a regular structure, convenient processing, and good visual effect. The length direction of the visual window 111a is consistent with the length direction of the board body 111 and the moving direction of the switch lock assembly 22. In this way, it can be ensured that the process of sliding and adjusting the position of the switch lock assembly 22 is located within the field of view of the visual window 111a, ensuring a visual and controllable effect. And when the switch lock assembly 22 is in the disconnected position, there is only the first indicator 221 opposite to the visual window 111a, and the second indicator 222 is blocked by the board body 111 and cannot be seen, so as not to cause misreading problems; similarly, when the switch lock assembly 22 slides and switches to the connected position, there is only the second indicator 222 opposite to the visual window 111a, and the first indicator 221 is blocked by the board body 111 and cannot be seen, and it will not cause misreading problems.

[0045] On the basis of any of the above embodiments, at least two visible windows 111a are provided in the present application, and at least two visible windows 111a are arranged side by side at intervals along the width direction of the plate body 111, and each visible window 111a is provided in cooperation with a corresponding switch lock assembly 22. For the current and voltage terminal block 20 equipped with multiple switch lock assemblies 22, simultaneously opening a corresponding number and position of visible windows 111a on the protective buckle plate 11 can facilitate visual monitoring of the position of each switch lock assembly 22, thereby avoiding problems of inadequate operation and misoperation.

[0046] Please continue to refer to FIG. 1 . In order to facilitate the gripping of the protective gusset plate 11 for more effective installation or removal operations, in an optional embodiment, a first gripping portion 12 is provided on the outer side of the connection between the plate body 111 and the first wing plate 112, and a second gripping portion 13 is provided on the outer side of the connection between the plate body 111 and the second wing plate 113. The first gripping portion 12 and the second gripping portion 13 are reasonably designed in size to facilitate gripping with one hand, and to facilitate the installation and removal of the protective gusset plate 11.

[0047] For example, the first gripping portion 12 and the second gripping portion 13 may be, but are not limited to, structures such as protrusions and grooves, which may be flexibly selected according to actual needs.

[0048] In addition to the above, the present application also protects a relay protection panel cabinet, which at least includes a cabinet body and a disconnection assembly 100, and the disconnection assembly 100 is installed on the cabinet body. The disconnection assembly 100 includes a switch state visualization cover plate 10 as described in any of the above embodiments.

[0049] 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.

[0050] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent 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 patent application shall be subject to the attached claims.

Claims

1. A switch status visualization cover plate, used for combination with current and voltage terminal blocks, It is characterized in that The switch status visualization security cover plate comprises: A protective gusset plate, the protective gusset plate comprising a plate body, a first wing plate and a second wing plate, the plate body comprising a first side and a second side arranged opposite to each other, the first wing plate being connected to the first side, a first connecting portion being arranged on a side of the first wing plate away from the plate body, the second wing plate being connected to the second side, a second connecting portion being arranged on a side of the second wing plate away from the plate body, and the plate body being provided with a visual window penetrating the plate thickness direction thereof; The current and voltage terminal block includes a terminal block seat and a switch lock assembly, wherein a first mating portion and a second mating portion are respectively provided on opposite sides of the terminal block seat, wherein the first connecting portion is detachably connected to the first mating portion, and the second connecting portion is detachably connected to the second mating portion, and the switch lock assembly is movably arranged on the terminal block seat, and wherein the switch lock assembly is provided with a first indicating portion and a second indicating portion spaced apart along a moving direction thereof, wherein when the switch lock assembly is in a disconnecting position, only the first indicating portion is opposite to the visible window, and when the switch lock assembly is in a connecting position, only the second indicating portion is opposite to the visible window.

2. The switch status visualization cover according to claim 1, It is characterized in that The first wing plate is arranged at an angle with the plate body, and the first wing plate is inclined in a direction away from the second wing plate; the second wing plate is arranged at an angle with the plate body, and the second wing plate is inclined in a direction away from the first wing plate.

3. The switch status visualization cover according to claim 1, It is characterized in that The first connecting portion and the second connecting portion are both configured as hooks, the first matching portion and the second matching portion are both provided with buckles, and the hooks and the buckles are detachably buckled and connected.

4. The switch status visualization cover according to claim 3, It is characterized in that The terminal block is further provided with an escape groove, the buckle position is formed inside the escape groove, and the hook extends into the escape groove and is engaged with the buckle position.

5. The switch status visualization cover according to claim 1, It is characterized in that The sides of the first wing plate and the second wing plate away from the plate body are both recessed inward to form a wire outlet groove, and the wires of the current and voltage terminal row pass through the wire outlet groove to the outside of the switch status visualization security cover, and the wires abut against the groove wall of the wire outlet groove.

6. The switch status visualization cover according to claim 1, It is characterized in that The visible window is a long strip structure, and the length direction of the visible window is consistent with the length direction of the board body and the moving direction of the switch lock assembly.

7. The switch status visualization cover according to claim 6, It is characterized in that At least two of the visible windows are provided, and the at least two visible windows are arranged side by side at intervals along the width direction of the plate body, and each of the visible windows is provided in cooperation with a corresponding switch lock assembly.

8. The switch status visualization cover according to claim 1, It is characterized in that A first grip portion is provided on the outer side of a connection between the plate body and the first wing plate, and a second grip portion is provided on the outer side of a connection between the plate body and the second wing plate.

9. A disconnecting assembly, It is characterized in that It comprises a switch status visualization cover plate as claimed in any one of claims 1 to 8.

10. A relay protection screen cabinet, It is characterized in that Comprising a disconnect assembly as claimed in claim 9.

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