Electric energy isolation device for high-voltage cabinet
By designing an electrical energy isolation device at the ground switch of the high-voltage cabinet, the combined structure of the substrate, barrier plate and isolation plate is used to lock the operating baffle, the risk of misoperation of the high-voltage cabinet is solved, and the complete isolation of electrical energy and operation safety is achieved.
Patent Information
- Application Number
- CN202420971618.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In the prior art During the regular inspection or emergency repair of high-voltage cabinets, operators may still operate the high-voltage cabinets by mistake, which poses operating risks and safety hazards, and existing warning measures are difficult to completely isolate the electricity.
Design an electrical energy isolation device, through the combination of substrate, barrier plate and isolation plate, to form a barrier at the ground switch opening of the high-voltage cabinet, and lock the isolation plate and operation blank to limit operational activities. Avoid misoperation.
Effectively prevent operators from operating the high-voltage cabinet by mistake, achieve complete isolation of the electrical energy of the high-voltage distribution cabinet, improve operational safety, avoid accidental bumps and misoperation, and ensure normal operation of the equipment.
Smart Images
Figure CN222320070U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electric power safety equipment, and in particular, relates to an electric energy isolation device for a high-voltage cabinet. Background Art
[0002] High-voltage cabinets refer to electrical products that play the role of switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption of power systems, with voltage levels ranging from 3.6kV to 550kV. At present, many manufacturers' electrical equipment adopts the form of direct start of 10KV high-voltage cabinets. It is very dangerous to regularly inspect or repair such high-voltage direct start equipment. Not only does it need to shut down the high-voltage cabinet, but it must also be thoroughly isolated from mechanical energy to prevent misoperation by personnel.
[0003] The current measure is to hang a warning sign "Do not close the switch, someone is working" or similar at the 10KV high-voltage cabinet switch after the high-voltage cabinet is powered off. However, this can only serve as a reminder and warning, and the operator can still operate the high-voltage cabinet trolley and the grounding knife, which cannot achieve the effect of completely isolating energy and preventing personnel from operating incorrectly. Although the existing technology designs circuit protection to ensure safety, it cannot prevent the operator's misoperation on site, and there are operational risks and safety hazards. Utility Model Content
[0004] The present application aims to solve the technical problem of misoperation of high-voltage cabinet opening and closing at least to a certain extent. To this end, the present application provides an electric energy isolation device for a high-voltage cabinet, which can form a barrier at the opening and closing point of the grounding switch of the high-voltage distribution cabinet, effectively protect the safety of personnel, avoid misoperation of personnel, and completely isolate the electric energy of the high-voltage distribution cabinet.
[0005] The embodiment of the present application provides an electric energy isolation device for a high-voltage cabinet, wherein the high-voltage cabinet has a grounding switch, and the grounding switch is provided with an operating baffle with an operating hole, which includes:
[0006] A base plate, used to fix to the switch mounting area;
[0007] a barrier plate hinged to the base plate;
[0008] The isolating sheet is used to shield the side of the grounding switch of the high-voltage cabinet. The isolating sheet is connected to the blocking plate and is provided with a lock hole.
[0009] When in use, the blocking plate can be rotated so that the isolation plate and the operating baffle are opposite to each other, and the locking hole and the operating hole are opposite to each other. The blocking plate and the operating baffle can be locked by a lock through the locking hole and the operating hole to limit the movement of the operating baffle.
[0010] In an optional embodiment, the size of the isolation sheet is greater than or equal to the size of the operating baffle, so that the isolation sheet can cover the side of the operating baffle.
[0011] In an optional embodiment, the blocking plate is provided with a through limiting hole, and the limiting hole is used to accommodate the operation blocking piece to pass through when the blocking plate rotates, and the limiting hole limits the movable area of the operation blocking piece.
[0012] In an optional embodiment, a plurality of isolation sheets are provided, and the plurality of isolation sheets are positioned opposite to each other and arranged at intervals.
[0013] In an optional embodiment, two isolation sheets are provided, and the limiting hole is located between the two isolation sheets, so that after the blocking plate is rotated, the two isolation sheets are respectively located on both sides of the operating baffle for blocking.
[0014] In an optional embodiment, the limiting hole includes a limiting area and a connecting area. Both ends of the connecting area are provided with limiting areas. The limiting areas are used for the operating baffle to pass through. The width of the connecting area is smaller than the width of the operating baffle, so that the operating baffle is limited to the limiting area.
[0015] In an optional embodiment, the limiting area is adjacent to the isolation sheet, so that the operating baffle through which the limiting area passes can be connected to the corresponding isolation sheet.
[0016] In an optional embodiment, a locking member is further included, which is connected to the base plate and fixes the base plate in the switch installation area.
[0017] In an optional embodiment, a locking assembly is further included for connecting and locking the blocking plate and the operating baffle, and the locking assembly can simultaneously connect the locking hole and the operating hole.
[0018] In an optional embodiment, the locking assembly includes a lock connecting rod and a lock body, the lock connecting rod is used to connect the lock hole and the operating hole, the lock body is used to be placed in the movable direction of the operating baffle, the lock connecting rod is connected to the lock body to form a closure, and after closure, the lock body limits the movement of the operating baffle.
[0019] It can be seen from the above technical solution that the beneficial effects of this application are:
[0020] The present application adopts a base plate fixed in the switch installation area, and the blocking plate is rotated to facilitate the operation baffle of the grounding switch to be close to the grounding switch. The grounding switch can be shielded by the isolation plate, which plays a certain role in preventing misoperation and preventing the operator from touching the grounding switch. The key hole provides a connection basis, so that when the isolation plate and the operation baffle are positioned relative to each other, the isolation plate and the operation baffle can be connected and locked by a lock, which limits the movement of the operation baffle and avoids switch operation caused by the operator accidentally touching the operation baffle. In this way, a barrier can be formed at the opening and closing position of the grounding switch of the high-voltage distribution cabinet, effectively protecting the safety of personnel, avoiding misoperation of personnel, and completely isolating the electric energy of the high-voltage distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A schematic diagram of an embodiment of the utility model for an electric energy isolation device for a high-voltage cabinet is shown;
[0023] Figure 2 A schematic diagram showing an application example of an electric energy isolation device for a high-voltage cabinet according to the utility model;
[0024] Figure 3 A schematic diagram showing an application example of an electric energy isolation device for a high-voltage cabinet according to the utility model;
[0025] Figure 4 A schematic diagram showing an application example of an electric energy isolation device for a high-voltage cabinet according to the utility model;
[0026] Figure numerals: 100, electric energy isolation device; 110, substrate; 120, blocking plate; 121, limiting hole; 121a, limiting area; 121b, connecting area; 130, isolation plate; 131, locking hole; 140, locking member; 150, locking assembly; 151, lock connecting rod; 152, lock body; 200, grounding switch; 210, operating baffle; 211, operating hole; 300, switch installation area. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral 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 the present invention can be understood according to specific circumstances.
[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0031] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0032] Please refer to Figure 1 and Figure 2In an embodiment of the present application, an electric energy isolation device for a high-voltage cabinet is provided. The high-voltage cabinet has a grounding switch 200. The grounding switch 200 is provided with an operating baffle 210 with an operating hole 211. The grounding switch 200 is a grounding knife switch structure. The operating baffle 210 is a component of the grounding knife, and can also be other grounding switches 200 that meet the requirements. The electric energy isolation device 100 is installed on one side of the operating hole 211 of the grounding knife, such as the left or right side of the grounding knife in the figure, and the switch installation area 300 is the installation area of the grounding switch 200. The electric energy isolation device 100 includes a substrate 110, a blocking plate 120 and an isolating sheet 130. The substrate 110 is in a plate shape and is used to be fixed in the switch installation area 300. It can be fixed in the switch installation area 300 by riveting, welding or other connection methods. For example, if the installation position is on the left side of the operating baffle 210 of the grounding knife, the installation position of the substrate 110 requires that the blocking plate 120 needs to be rotated and fitted to the switch installation area 300, so that the isolation sheet 130 and the operating baffle 210 are in the same position; the blocking plate 120 is hinged to the substrate 110, and the blocking plate 120 is in a plate shape. The edge of the blocking plate 120 is hinged to the edge of the substrate 110 through a pin shaft. Other hinged structure forms can also be used, as long as it is ensured that the blocking plate 120 can rotate relative to the substrate 110, and the blocking plate 120 can rotate within a larger angle range, such as 0° to 180°. When the grounding knife is opened or closed, the device is rotated to the right until the blocking plate 120 fits on the surface of the switch installation area 300.
[0033] The isolating sheet 130 is in sheet shape and welded to the blocking plate 120. The isolating sheet 130 and the blocking plate 120 can also be integrally formed. The isolating sheet 130 is used to shield the side of the grounding switch 200 of the high-voltage cabinet. After the blocking plate 120 is attached as described above, the isolating sheet 130 is just located on the side of the grounding knife, which plays an isolating role for the operator to avoid accidentally touching the operating baffle 210. The isolating sheet 130 is connected to the blocking plate 120. The isolating sheet 130 is provided with a lock hole 131, which is a through hole, and the lock hole 131 is used to insert a lock. When in use, the blocking plate 120 can be rotated to align the position of the isolating sheet 130 with the operating baffle 210. The isolation plate 130 and the operating baffle 210 are relative to each other, as shown in the figure, the isolation plate 130 and the operating baffle 210 are relative to each other up and down, and the locking hole 131 and the operating hole 211 are relative to each other. As shown in the figure, the positions of the locking hole 131 and the operating hole 211 correspond to each other up and down, and the blocking plate 120 and the operating baffle 210 can be locked by using the locking hole 131 and the operating hole 211, that is, the lock passes through the locking hole 131 and the operating hole 211 at the upper and lower positions to lock the blocking plate 120 and the operating baffle 210, and fixes the operating baffle 210 to a certain extent to limit the movement of the operating baffle 210, and the grounding switch can no longer be operated at will, thereby ensuring the safety of the operator and the stable operation of the equipment.
[0034] The existing method of using warnings to remind operators, but misoperation is inevitable. Since the high-voltage cabinet has a direct starting voltage of 10KV, the existing circuit protection cannot prevent operators from misoperating, which poses great operational risks and safety hazards. However, the present application uses a substrate 110 fixed in the switch installation area 300, which is rotated by the blocking plate 120 to facilitate the operation baffle 210 close to the grounding switch 200. The grounding switch 200 can be shielded by the isolation plate 130, which plays a certain role in preventing misoperation and prevents operators from touching the grounding switch 200. The lock hole 131 provides a connection basis, so that when the isolation plate 130 and the operation baffle 210 are in opposite positions, the isolation plate 130 and the operation baffle 210 can be connected and locked by a lock. This limits the movement of the operation baffle 210 and prevents operators from accidentally touching the operation baffle. 210 causes the switch operation, so that a barrier can be formed at the grounding switch opening and closing of the high-voltage distribution cabinet. Whether it is a power outage or a power supply state, as long as the device and the operating baffle 210 are locked, there will be no misoperation. Before the on-site equipment inspection or maintenance begins, the high-voltage cabinet is powered off. By locking the device and the grounding knife operating hole 211 baffle, the grounding knife will not be able to operate, and the circuit breaker trolley of the high-voltage cabinet cannot be swing in, completely isolating the electric energy. When the equipment resumes power supply and the grounding knife is opened, the device and the grounding knife operating hole 211 baffle are also locked, making the grounding knife unable to operate. This effectively avoids misoperation by personnel, ensures the safety of on-site operations, and ensures the normal operation of equipment, thereby greatly protecting personnel safety and achieving complete isolation of the electric energy of the high-voltage distribution cabinet.
[0035] Please refer to Figure 3 and Figure 4In an optional embodiment, the blocking plate 120 is provided with a limiting hole 121, and the limiting hole 121 passes through both sides of the blocking plate 120. The limiting hole 121 is used to accommodate the operation baffle 210 to pass through when the blocking plate 120 rotates. The limiting hole 121 is rectangular in shape and can be designed to be a narrow and long shape so that the operation baffle 210 can pass through it. The operation baffle 210 can pass through the limiting hole 121 perpendicular to the direction of the blocking plate 120. The limiting hole 121 limits the activity area of the operation baffle 210. The size range of the limiting hole 121 is the activity range of the operation baffle 210. The degree of limitation of the operation baffle 210 can be determined by adjusting the limiting hole 121. In an optional embodiment, the limiting hole 121 includes a limiting area 121a and a connecting area 121b, and limiting areas 121a are provided at both ends of the connecting area 121b, that is, there are at least two limiting areas 121a, and the connecting area 121b is connected between two adjacent limiting areas 121a. For example, the limiting area 121a and the connecting area 121b are connected to form an I-shape, which is both beautiful and has a good limiting effect; the limiting area 121a is used for the operating baffle 210 to pass through, and the width of the connecting area 121b is smaller than the width of the operating baffle 210, so that the operating baffle 210 is limited to the limiting area 121a; according to the above-mentioned design of the limiting hole 121, the operating baffle 210 can always be limited to the limiting area 121a , plays a certain degree of limiting role, avoids misoperation of the operating baffle 210, and at the same time, through the setting of the limiting area 121a and the connecting area 121b, the power isolation device 100 can be installed on the left side or the right side of the grounding knife operating baffle 210, and has good versatility; in an optional embodiment, the limiting area 121a is adjacent to the isolation piece 130, so that the operating baffle 210 passed by the limiting area 121a can be connected to the corresponding isolation piece 130, so that the blocking plate 120 fits the switch installation area 300, and the operating baffle 210 passes through the limiting area 121a. After passing through, the operating baffle 210 is just adjacent to the isolation piece 130, which is convenient for locking with a lock.
[0036] In an optional embodiment, the size of the isolation sheet 130 is greater than or equal to the size of the operating baffle 210, that is, the length and width of the isolation sheet 130 are greater than the operating baffle 210, so that the isolation sheet 130 can cover the side of the operating baffle 210, and the isolation sheet 130 can be designed as a structure with the same shape as the operating baffle 210 but with a larger size, such as the isolation sheet 130 can be a sheet structure with an arc edge on one side, or a setting with the same shape and size can be adopted. In an optional embodiment, there are a plurality of isolation sheets 130, and the plurality of isolation sheets 130 are arranged in relative positions and at intervals, such as the isolation sheets 130 are set as a plurality of parallel and spaced isolation sheets 130, and the isolation sheets 130 are perpendicular to the blocking plate 120, and the adjacent isolation sheets 130 can provide an entry space for the operating baffle 210; when multiple isolation sheets 130 are provided, a lock can be used to lock the plurality of isolation sheets 130 together with the operating baffle 210, or the operating baffle 210 can be locked with the isolation sheets 130 at adjacent positions, as long as the range of movement of the operating baffle 210 is limited. In an optional embodiment, two isolation sheets 130 are provided, and the limiting hole 121 is located between the two isolation sheets 130, so that after the blocking plate 120 is rotated, the two isolation sheets 130 are respectively located on both sides of the operating baffle 210 for blocking, and the limiting hole 121 is rectangular or I-shaped as mentioned above, which is convenient for limiting the operating baffle 210; according to the setting of the above-mentioned two isolation sheets 130, after locking with a lock, the main part of the lock can be placed between the two isolation sheets 130, corresponding to the position of the limiting hole 121, so that the activity area of the operating baffle 210 can also be limited by the lock, which plays a blocking role, ensures the safety of the equipment and operators, and is easy to operate.
[0037] In an optional embodiment, a locking member 140 is further included. The locking member 140 is connected to the substrate 110 and fixes the substrate 110 to the switch installation area 300. For example, the locking member 140 is a rivet, a screw, a bolt or other parts. The substrate 110 is provided with a through hole. The locking member 140 is passed through the through hole to fix the substrate 110 to the switch installation area 300. In an optional embodiment, a locking assembly 150 is further included, which is used to connect and lock the blocking plate 120 with the operating baffle 210. The locking assembly 150 can simultaneously connect the locking hole 131 and the operating hole 211. The locking assembly 150 can be a lock or other device that can connect and fix the locking hole 131 with the operating hole 211 to ensure that the isolation sheet 130 and the operating baffle 210 can be locked to each other. In an optional embodiment, the locking assembly 150 includes a lock connecting rod 151 and a lock body 152. The lock connecting rod 151 is used to connect the lock hole 131 and the operating hole 211, and the lock body 152 is used to be placed in the movable direction of the operating baffle 210. If the locking assembly 150 adopts the existing U-shaped buckle lock, the lock connecting rod 151 is U-shaped and can pass through the lock hole 131 and the operating hole 211. The lock connecting rod 151 is connected to the lock body 152 to form a closure. After closing, the lock body 152 limits the movement of the operating baffle 210.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.
[0039] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0040] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. An electric energy isolation device for a high-voltage cabinet, the high-voltage cabinet having a grounding switch (200), the grounding switch (200) being provided with an operating baffle (210) with an operating hole (211), characterized in that: include: A base plate (110) for fixing to a switch mounting area (300); A blocking plate (120) hinged to the base plate (110); An isolation sheet (130) for shielding a side surface of a grounding switch (200) of a high-voltage cabinet, the isolation sheet (130) being connected to the blocking plate (120), and the isolation sheet (130) being provided with a lock hole (131); When in use, the blocking plate (120) can be rotated so that the isolation plate (130) and the operating baffle (210) are opposite to each other, and the locking hole (131) and the operating hole (211) are opposite to each other. The blocking plate (120) and the operating baffle (210) can be locked by a lock through the locking hole (131) and the operating hole (211) to limit the movement of the operating baffle (210).
2. The electric energy isolation device for high-voltage cabinet according to claim 1, characterized in that: The size of the isolation sheet (130) is greater than or equal to the size of the operating baffle (210), so that the isolation sheet (130) can cover the side of the operating baffle (210).
3. The electric energy isolation device for a high voltage cabinet according to claim 1, characterized in that: The blocking plate (120) is provided with a through-going limiting hole (121), and the limiting hole (121) is used to accommodate the operation blocking piece (210) to pass through when the blocking plate (120) rotates, and the limiting hole (121) limits the movable area of the operation blocking piece (210).
4. The electric energy isolation device for high-voltage cabinet according to claim 3, characterized in that: A plurality of the isolation sheets (130) are provided, and the plurality of isolation sheets (130) are positioned opposite to each other and arranged at intervals.
5. The electric energy isolation device for high voltage cabinet according to claim 4, characterized in that: Two isolation sheets (130) are provided, and the limiting hole (121) is located between the two isolation sheets (130), so that after the blocking plate (120) is rotated, the two isolation sheets (130) are respectively located on both sides of the operating baffle (210) for shielding.
6. The electric energy isolation device for high-voltage cabinet according to claim 5, characterized in that: The limiting hole (121) comprises a limiting area (121a) and a communication area (121b); the limiting areas (121a) are provided at both ends of the communication area (121b); the limiting areas (121a) are used for the operating baffle (210) to pass through; the width of the communication area (121b) is smaller than the width of the operating baffle (210), so that the operating baffle (210) is limited to the limiting area (121a).
7. The electric energy isolation device for a high voltage cabinet according to claim 6, characterized in that: The limiting area (121a) is located adjacent to the isolation sheet (130), so that the operating baffle (210) passing through the limiting area (121a) can be connected to the corresponding isolation sheet (130).
8. The electric energy isolation device for a high voltage cabinet according to claim 1, characterized in that: It also includes a locking member (140), wherein the locking member (140) is connected to the substrate (110) and fixes the substrate (110) in the switch installation area (300).
9. The electric energy isolation device for a high voltage cabinet according to claim 1, characterized in that: It also comprises a locking assembly (150) for connecting and locking the blocking plate (120) and the operating baffle (210), and the locking assembly (150) can simultaneously connect the locking hole (131) and the operating hole (211).
10. The electric energy isolation device for high voltage cabinet according to claim 9, characterized in that: The locking assembly (150) comprises a lock connecting rod (151) and a lock body (152); the lock connecting rod (151) is used to connect the lock hole (131) and the operating hole (211); the lock body (152) is used to be placed in the moving direction of the operating baffle (210); the lock connecting rod (151) and the lock body (152) are connected to form a closed state; after closing, the lock body (152) restricts the movement of the operating baffle (210).