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

Abstract

The invention relates to a switch state visualization safety measure terminal, a breaking assembly and a relay protection screen cabinet, and the terminal comprises a terminal seat which is provided with an installation cavity and a chute; the terminal strip is arranged in the mounting cavity, and the terminal strip is provided with a first metal contact piece and a second metal contact piece which are arranged at an interval; the switch lock assembly is provided with a connection position and a disconnection position, the switch lock assembly is arranged in the sliding groove in a sliding mode and can be switched between the connection position and the disconnection position, the switch lock assembly is provided with a first indication part and a second indication part, and when the switch lock assembly is located at the connection position, the switch lock assembly is locked. The switch lock assembly is in contact with the first metal contact piece and is separated from the second metal contact piece at the same time, the first indicating part is in a visible state and the second indicating part is in a shielding state at the same time, and the switch lock assembly is in contact with the second metal contact piece and is separated from the first metal contact piece at the breaking position; the second indicating part is in a visible state while the first indicating part is in a shielding state.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a switch status visualization safety terminal, 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, the disconnection position is not visible, which may cause disconnection misoperation and affect 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 terminal, disconnecting assembly and relay protection panel cabinet to address the problem of misoperation of disconnection and affecting the safety and reliability of equipment operation and maintenance.

[0005] In a first aspect of the present application, a switch state visualization safety terminal is provided, which comprises:

[0006] A terminal seat, wherein the terminal seat is provided with a mounting cavity and a slide groove;

[0007] A terminal block, the terminal block is installed in the installation cavity, and the terminal block is provided with a first metal contact piece and a second metal contact piece arranged at intervals; and

[0008] A switch lock assembly, wherein the switch lock assembly has an on position and an off position, the switch lock assembly can be slidably arranged in the slide groove and can be switched between the on position and the off position, the switch lock assembly is provided with a first indicator part and a second indicator part, when in the on position, the switch lock assembly contacts the first metal contact piece and is separated from the second metal contact piece at the same time, the first indicator part is in a visible state and the second indicator part is in a shielding state at the same time, when in the off position, the switch lock assembly contacts the second metal contact piece and is separated from the first metal contact piece at the same time, the second indicator part is in a visible state and the first indicator part is in a shielding state at the same time.

[0009] When the switch status visualization safety terminal of the present solution is used, it can be electrically connected to an external test device, and the switch lock assembly slides in the slide groove to the on position. At this time, the switch lock assembly contacts the first metal contact and separates from the second metal contact to put the device in the on state, and at this time, the first indicator is in a visible state and the second indicator is blocked. The operation and maintenance personnel can visually observe the first indicator to clearly know that the switch lock assembly has moved into place (i.e., moved to the set on position); in addition, when the switch lock assembly slides from the on position to the off position, the switch lock assembly will be separated from the first metal contact and contact the second metal contact to put the device in the off state, and at this time, the second indicator is in a visible state and the first indicator is blocked. The operation and maintenance personnel can visually observe the second indicator to clearly know that the switch lock assembly has moved into place (i.e., moved to the set off position); that is, the safety terminal of the present solution has position visualization, which can ensure that the operation and maintenance personnel can operate it accurately, thereby preventing the problem of misoperation and improving the safety and reliability of equipment operation and maintenance.

[0010] The technical solution of this application is further described below:

[0011] In one embodiment, the first indicator portion is a first recess formed on the switch lock assembly, and a first color pattern is provided in the first recess. The second indicator portion is a second recess formed on the switch lock assembly, and a second color pattern is provided in the second recess.

[0012] In one embodiment, the terminal seat includes a first plate body and a second plate body, the first plate body and the second plate body are arranged side by side with an interval to form the slide groove, and the first plate body and / or the second plate body are provided with a disconnecting notch near the disconnecting position, and the switch lock assembly that slides to the disconnecting position blocks the disconnecting notch.

[0013] In one embodiment, the switch lock assembly includes a bottom slider, a mounting slider, an indication carrier plate and a bolt, the bottom slider and the mounting slider are stacked in the slide groove along the depth direction of the slide groove, the indication carrier plate is arranged on the top surface of the mounting slider away from the bottom slider, the bolt passes through the indication carrier plate and the mounting slider, and is screwed to the bottom slider, the indication carrier plate is provided with the first indication portion and the second indication portion, and the first indication portion and the second indication portion are arranged on opposite sides of the bolt.

[0014] In one of the embodiments, a first stop step is recessed on the side of the bottom slider toward the mounting slider, and the first stop step is snap-engaged with the bottom surface of the first plate body and / or the second plate body, and a second stop step is recessed on the side of the mounting slider toward the bottom slider, and the second stop step is snap-engaged with the top surface of the first plate body and / or the second plate body, and when the bolt is tightened, the bottom slider and the mounting slider can move closer to each other to clamp and fasten the first plate body and / or the second plate body.

[0015] In one of the embodiments, buckles are provided on two opposite sides of the terminal seat, and the buckles are used to be buckled with the hooks of the protective cover.

[0016] In one of the embodiments, the switch status visualization terminal further includes a shell plate, which is mounted on the terminal seat and is limitedly matched with the switch lock assembly.

[0017] In one of the embodiments, the shell plate is provided with an avoidance through hole, the first indicating portion or the second indicating portion can be aligned with the avoidance through hole, and the avoidance through hole is used to expose the first indicating portion or the second indicating portion.

[0018] According to a second aspect of the present application, a disconnecting assembly is provided, which includes the switch status visualization terminal as described above.

[0019] In a third aspect of the present application, there is also provided a relay protection screen cabinet, comprising:

[0020] Cabinets; and

[0021] The disconnecting assembly as described above is installed in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] 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.

[0024] FIG. 1 is a schematic diagram of the isometric structure of a switch status visualization terminal according to an embodiment of the present application.

[0025] FIG. 2 is a schematic structural diagram of FIG. 1 from another viewing angle.

[0026] FIG. 3 is a front view of the structure of FIG. 1 .

[0027] Description of reference numerals:

[0028] 100. Visualization terminal for switch status; 10. Terminal seat; 11. Slide groove; 12. First metal contact; 13. Second metal contact; 14. Disconnection notch; 15. Buckle position; 20. Switch lock assembly; 21. First indication part; 22. Second indication part; 23. Bottom slider; 231. First stop step; 24. Mounting slider; 241. Second stop step; 25. Indication carrier plate; 26. Bolt; 30. Shell plate; 31. Avoidance through hole. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 1 to 3 , a switch status visualization terminal 100 is shown in one embodiment of the present application, which includes a terminal seat 10 , a terminal block and a switch lock assembly 20 .

[0036] The terminal base 10 is a load-bearing main structure for loading the integrated terminal block and the switch lock assembly 20. The terminal base 10 is preferably made of insulating materials, such as plastic, epoxy resin, metal coated with an insulating coating, etc., which can be flexibly selected according to actual needs.

[0037] In the present application, the terminal seat 10 is provided with a mounting cavity and a slide groove 11 .

[0038] The terminal row is installed in the installation cavity, and the terminal row is provided with a first metal contact 12 and a second metal contact 13 arranged at intervals; the switch lock assembly 20 has an on position and an off position, the switch lock assembly 20 can be slidably arranged in the slide groove 11 and can switch between the on position and the off position, the switch lock assembly 20 is provided with a first indicating portion 21 and a second indicating portion 22, when in the on position, the switch lock assembly 20 contacts the first metal contact 12 and is separated from the second metal contact 13 at the same time, the first indicating portion 21 is in a visible state and the second indicating portion 22 is in a shielding state at the same time, when in the off position, the switch lock assembly 20 contacts the second metal contact 13 and is separated from the first metal contact 12 at the same time, the second indicating portion 22 is in a visible state and the first indicating portion 21 is in a shielding state at the same time.

[0039] It is easy to understand that when the first indicator part 21 is visible, the second indicator part 22 is ensured to be blocked, or the second indicator part 22 is visible and the first indicator part 21 is ensured to be blocked. The purpose is to ensure the accuracy of the visualization of the operation and maintenance personnel and avoid interference with the judgment of the operation and maintenance personnel when the first indicator part 21 and the second indicator part 22 are visible at the same time.

[0040] In summary, the implementation of the technical solution of this embodiment will achieve the following beneficial effects: when the switch status visualization security terminal 100 of this solution is used, it can be electrically connected to an external test device, and the switch lock component 20 slides in the slide slot 11 to the on position. At this time, the switch lock component 20 contacts the first metal contact piece 12 and is separated from the second metal contact piece 13 to put the device in the on state, and at this time, the first indicator part 21 is in a visible state while the second indicator part 22 is blocked. The operation and maintenance personnel can visually observe the first indicator part 21 to clearly know that the switch lock component 20 has been moved into place (that is, moved to the set on position); in addition, when the switch lock When the component 20 slides and switches from the on position to the off position, the switch lock component 20 will be separated from the first metal contact 12 and contact the second metal contact 13 at the same time, so that the device is in the off state, and at this time the second indicator part 22 is in a visible state while the first indicator part 21 is blocked. The operation and maintenance personnel can visually observe the second indicator part 22 to clearly know that the switch lock component 20 has been moved into place (i.e., moved to the set off position); that is to say, the security terminal of this solution has position visualization, which can ensure that the operation and maintenance personnel can operate it accurately, thereby preventing the problem of misoperation and improving the safety and reliability of equipment operation and maintenance.

[0041] It can be understood that the purpose of setting the first indicator part 21 and the second indicator part 22 is to provide eye-catching position markings to better assist operation and maintenance personnel to accurately determine the position of the switch lock assembly 20, thereby achieving visual monitoring and judgment of the accuracy of the disconnection operation.

[0042] In an optional embodiment, the first indicator 21 is a first recess formed on the switch lock assembly 20, and a first color pattern is provided in the first recess, and the second indicator 22 is a second recess formed on the switch lock assembly 20, and a second color pattern is provided in the second recess. Therefore, the structure and forming method of the first indicator 21 and the second indicator 22 are simple, and the use of different color patterns has a good distinguishing effect, which helps the operation and maintenance personnel to make better visual judgments.

[0043] For example, the first color pattern is a red pattern, and the second color pattern is a blue pattern.

[0044] Of course, in other optional embodiments, the first indicating portion 21 and the second indicating portion 22 may also adopt static differentiated indicating solutions such as text and symbols, or adopt dynamic differentiated indicating solutions such as lighting of different colors.

[0045] In one embodiment of the present application, the terminal block 10 includes a first plate body and a second plate body, and the first plate body and the second plate body are arranged side by side with an interval to form a slide groove 11. A disconnecting groove 14 is opened at a portion of the first plate body and / or the second plate body near the disconnecting position, and the switch lock assembly 20 that slides to the disconnecting position blocks the disconnecting groove 14.

[0046] By using the first plate body and the second plate body which are arranged side by side at intervals, the forming method of the slide groove 11 is simple, and the structure and size consistency of the slide groove 11 are good. The switch lock assembly 20 moved to the disconnecting position can just cover the disconnecting slot 14, and the disconnecting slot 14 is invisible, thereby being able to more prominently remind the operation and maintenance personnel that the switch lock assembly 20 has indeed moved to the set disconnecting position.

[0047] Please continue to refer to Figures 1 and 3. In addition, based on any of the above embodiments, the switch lock assembly 20 includes a bottom slider 23, a mounting slider 24, an indication carrier plate 25 and a bolt 26. The bottom slider 23 and the mounting slider 24 are stacked in the slide groove 11 along the depth direction of the slide groove 11. The indication carrier plate 25 is arranged on the top surface of the mounting slider 24 away from the bottom slider 23. The bolt 26 penetrates the indication carrier plate 25 and the mounting slider 24 and is screwed with the bottom slider 23. The indication carrier plate 25 is provided with a first indication portion 21 and a second indication portion 22. The first indication portion 21 and the second indication portion 22 are arranged on opposite sides of the bolt 26. At the same time, a bottom slider 23 and a mounting block are provided to slide in the slide groove 11 surrounded by the first plate body and the second plate body. Due to the increased sliding contact area, the switch lock assembly 20 can slide more steadily and smoothly. The first indicator part 21 and the second indicator part 22 are formed on the indicator carrier plate 25, and are respectively located on opposite sides of the bolt 26 in the installed state, so that the first indicator part 21 and the second indicator part 22 are separated by a sufficiently large separation distance to ensure that the second indicator part 22 can be completely and effectively blocked while the first indicator part 21 is visible, or the first indicator part 21 can be completely and effectively blocked while the second indicator part 22 is visible.

[0048] Furthermore, a first stop step 231 is recessed on the side of the bottom slider 23 facing the mounting slider 24, and the first stop step 231 is buckled with the bottom surface of the first plate body and / or the second plate body, and a second stop step 241 is recessed on the side of the mounting slider 24 facing the bottom slider 23, and the second stop step 241 is buckled with the top surface of the first plate body and / or the second plate body. When the bolt 26 is tightened, the bottom slider 23 and the mounting slider 24 can move closer to each other to clamp and fasten the first plate body and / or the second plate body.

[0049] When the switch lock assembly 20 slides to the on position or the off position, the bolt 26 is tightened. The bolt 26 pulls the bottom slider 23 and the mounting slider 24 toward each other with the help of the threaded pair, so that the first stop step 231 and the second stop step 241 are respectively buckled with the bottom surface and the top surface of the first plate body and / or the second plate body, thereby achieving a clamping and positioning effect, and positioning the switch lock assembly 20 without being easily loosened.

[0050] On the basis of any of the above embodiments, two opposite sides of the terminal block 10 are provided with buckle positions 15, and the buckle positions 15 are used to buckle with the hook of the protective cover. In actual use, in order to improve insulation and prevent electric shock, the switch status visualization safety terminal 100 also needs to be assembled with the protective cover, and the installation method of the hook and the buckle position 15 buckle connection makes the assembly or disassembly of the protective cover and the safety terminal convenient and labor-saving, and has good reusability.

[0051] Of course, in other optional embodiments, any one of the methods such as screw connection, magnetic connection, bonding, etc. can be used to replace the above-mentioned snap connection method, which is also within the protection scope of this application and will not be elaborated here.

[0052] Please continue to refer to Figures 1 and 2. In another embodiment, the switch state visualization terminal 100 further includes a shell plate 30, which is mounted on the terminal seat 10 and is limitedly matched with the switch lock assembly 20. The shell plate 30 can prevent the switch lock assembly 20 from loosening or even falling off, thereby improving the overall structural stability and reliability of the switch state visualization terminal 100.

[0053] In order to avoid obstructing the visualization of the first indicator part 21 and the second indicator part 22, the shell plate 30 is provided with an avoidance hole 31, and the first indicator part 21 or the second indicator part 22 can be aligned with the avoidance hole 31, and the avoidance hole 31 is used to make the first indicator part 21 or the second indicator part 22 visible.

[0054] In addition to the above, the present application also provides a relay protection panel cabinet, which includes a cabinet body and a disconnecting assembly, wherein the disconnecting assembly is installed in the cabinet body. The disconnecting assembly includes the switch state visualization safety terminal 100 as described in any of the above embodiments.

[0055] 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.

[0056] 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 terminal, characterized in that: include: A terminal seat, wherein the terminal seat is provided with a mounting cavity and a slide groove; A terminal block, the terminal block is installed in the installation cavity, and the terminal block is provided with a first metal contact piece and a second metal contact piece arranged at intervals; and A switch lock assembly, wherein the switch lock assembly has an on position and an off position, the switch lock assembly can be slidably arranged in the slide groove and can be switched between the on position and the off position, the switch lock assembly is provided with a first indicator part and a second indicator part, when in the on position, the switch lock assembly contacts the first metal contact piece and is separated from the second metal contact piece at the same time, the first indicator part is in a visible state and the second indicator part is in a shielding state at the same time, when in the off position, the switch lock assembly contacts the second metal contact piece and is separated from the first metal contact piece at the same time, the second indicator part is in a visible state and the first indicator part is in a shielding state at the same time.

2. The switch status visualization device terminal according to claim 1, characterized in that: The first indicator portion is a first recess formed on the switch lock assembly, and a first color pattern is arranged in the first recess. The second indicator portion is a second recess formed on the switch lock assembly, and a second color pattern is arranged in the second recess.

3. The switch status visualization terminal according to claim 1, characterized in that: The terminal seat includes a first plate body and a second plate body, the first plate body and the second plate body are arranged side by side with an interval to form the slide groove, and the first plate body and / or the second plate body are provided with a disconnecting notch near the disconnecting position, and the switch lock assembly that slides to the disconnecting position blocks the disconnecting notch.

4. The switch status visualization terminal according to claim 3, characterized in that: The switch lock assembly includes a bottom slider, a mounting slider, an indication carrier plate and a bolt. The bottom slider and the mounting slider are stacked in the slide groove along the depth direction of the slide groove. The indication carrier plate is arranged on the top surface of the mounting slider away from the bottom slider. The bolt passes through the indication carrier plate and the mounting slider and is screwed with the bottom slider. The indication carrier plate is provided with the first indication part and the second indication part, and the first indication part and the second indication part are arranged on opposite sides of the bolt.

5. The switch status visualization terminal according to claim 4, characterized in that: The bottom slider is recessed with a first stop step on the side facing the mounting slider, and the first stop step is buckled with the bottom surface of the first plate body and / or the second plate body, and the mounting slider is recessed with a second stop step on the side facing the bottom slider, and the second stop step is buckled with the top surface of the first plate body and / or the second plate body. When the bolt is tightened, the bottom slider and the mounting slider can move closer to each other to clamp and fasten the first plate body and / or the second plate body.

6. The switch status visualization terminal according to claim 1, characterized in that: Buckles are provided on two opposite sides of the terminal seat, and the buckles are used to be buckled and connected with the hooks of the protective cover.

7. The switch status visualization terminal according to claim 1, characterized in that: The switch status visualization security terminal also includes a shell plate, which is installed on the terminal seat and is limitedly matched with the switch lock assembly.

8. The switch status visualization terminal according to claim 7, characterized in that: The shell plate is provided with an avoidance through hole, and the first indicating portion or the second indicating portion can be aligned with the avoidance through hole, and the avoidance through hole is used to expose the first indicating portion or the second indicating portion.

9. A disconnecting assembly, characterized in that: The invention comprises a switch state visualization terminal as claimed in any one of claims 1 to 8.

10. A relay protection screen cabinet, characterized in that: include: Cabinet; as well as The disconnect assembly according to claim 9, wherein the disconnect assembly is installed in the cabinet.

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