Relay protection pressing plate device and relay protection equipment

Abstract

The invention discloses a relay protection pressing plate device and relay protection equipment, and belongs to the field of relay protection equipment.The relay protection pressing plate device comprises a relay protection pressing plate assembly, and the relay protection pressing plate assembly comprises a fixing plate, a pressing plate column, a connecting column, a threaded fixing rod, a connecting plate, a clamping block and an electric wire; the fixing plate, the pressing plate column and the connecting column are integrally arranged, the pressing plate column is arranged on the outer wall of the fixing plate, and the connecting column is arranged on one side of the pressing plate column; the threaded fixing rod is connected in the connecting column, and the vertical central axis of the threaded fixing rod coincides with the vertical central axis of the pressing plate column. The connecting plate is arranged outside the threaded fixing rod in a sleeving mode, and the connecting plate and the pressing plate column form a threaded structure through the threaded fixing rod. The clamping block is in clamping connection with the connecting column, and the wire is connected with the interior of the clamping block. A thread structure is used for replacing traditional plug-in operation to adapt to a compact space, the operation and maintenance efficiency is improved, rapid assembly and disassembly and stable circuit on-off are achieved by means of integration and clamping connection of an electric wire and a clamping block, and reliable operation of the device is comprehensively guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of relay protection equipment, specifically relating to a relay protection pressure plate device and a relay protection device. Background Technology

[0002] In the safe and stable operation of power systems, relay protection equipment plays a crucial role. Like a "safety guardian," it can quickly activate and disconnect faulty circuits when power equipment malfunctions or operates abnormally, preventing the fault from escalating and thus protecting the safety of the power equipment and the entire power system. Relay protection switchboards are an indispensable key component of relay protection equipment, serving as a vital physical interface for enabling and disabling relay protection functions and switching protection modes. By operating the relay protection switchboards, maintenance personnel can control the activation or deactivation of corresponding protection functions to adapt to different operating conditions of the power system. For example, during equipment maintenance, relevant protection switchboards need to be deactivated to prevent malfunctions; during normal system operation, the corresponding protection switchboards are reactivated to ensure the protection functions operate normally.

[0003] Traditional relay protection pressure plate devices mostly adopt a plug-in structure, requiring maintenance personnel to manually plug and unplug the connecting plates during operation. Due to the compact installation locations and large number of these pressure plate devices, limited operating space can easily arise during plugging and unplugging, leading to inconvenience and reduced work efficiency. Furthermore, some pressure plate devices have inadequate connection structures, with insufficient smooth cooperation between the connecting plates and pressure plate columns, requiring significant force for plugging and unplugging. This not only increases the workload of maintenance personnel but may also damage the connecting plates or related components due to improper operation. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems of limited operating space and awkward connection structure of traditional relay protection pressure plate devices, and to propose a relay protection pressure plate device and relay protection equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a relay protection pressure plate device, comprising a relay protection pressure plate assembly, the relay protection pressure plate assembly including a fixed plate, a pressure plate column, a connecting column, a threaded fixing rod, a connecting plate, a locking block, and a wire; the fixed plate, pressure plate column, and connecting column are all integrally formed, the pressure plate column is disposed on the outer wall of the fixed plate, and the connecting column is disposed on one side of the pressure plate column; the threaded fixing rod is connected inside the connecting column, and the threaded fixing rod is aligned with the vertical central axis of the pressure plate column; the connecting plate is sleeved on the outside of the threaded fixing rod, and the connecting plate and the pressure plate column form a threaded structure through the threaded fixing rod; the locking block is engaged with the connecting column, and the wire is internally connected to the locking block.

[0006] Furthermore, the threaded fixing rod is provided with an external thread on its exterior, and the pressure plate column is provided with a first internal thread on its inner wall. The threaded fixing rod rotates relative to the pressure plate column and is positioned along the axial direction. The connecting plate is provided with a through hole, and a second internal thread is provided inside the through hole. The external thread meshes with the first internal thread and the second internal thread.

[0007] Furthermore, the fixing plate and pressure plate column are integrated, the fixing plate and connecting column are integrated, and the clip and wire are integrated.

[0008] Secondly, the present invention provides a relay protection device, including a relay protection pressure plate device, internal electrical components, an overall protective assembly, and a moisture-proof protective assembly; the internal electrical components are connected to the bottom of the fixing plate of the relay protection pressure plate assembly; the overall protective assembly is disposed outside the internal electrical components, and the moisture-proof protective assembly is connected to the side of the overall protective assembly; the moisture-proof protective assembly includes a support frame, a slide groove, a slider, a roller, a support frame, and a desiccant placement box; the support frame is connected to the overall protective assembly, the slide groove is opened inside the support frame, the slider is slidably connected to the slide groove, the support frame is disposed on the slider, and the roller is disposed on one side of the support frame; the support frame and the support frame form a sliding structure through the slider, the slide groove, and the roller; the desiccant placement box is disposed inside the support frame.

[0009] Furthermore, the overall protective assembly includes a protective cabinet, hinges, cabinet doors, buckles, a metal shell, a second spring, and a plug rod; one side of the hinge is connected to the protective cabinet, and the other side of the hinge is connected to one side of the cabinet door, with buckles installed on the other side of the cabinet door; the metal shell is installed on the protective cabinet, the second spring is installed inside the metal shell, and the plug rod is connected to one end of the second spring.

[0010] Furthermore, the cabinet door forms a rotating structure with the protective cabinet via hinges, and the cabinet door is made of high-temperature resistant PC.

[0011] Furthermore, the cabinet door and the buckle are integrated into one unit, with the buckle and the insert rod forming an engaging structure, and the insert rod forming an elastic structure with the metal shell through a second spring.

[0012] Furthermore, the desiccant boxes are arranged at equal intervals inside the support frame, and the desiccant boxes and the support frame are integrated into one unit.

[0013] Furthermore, the support frame and the slider are integrated into one unit.

[0014] Furthermore, a mounting block is fixedly connected to the top of the moisture-proof and protective component.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention proposes a relay protection pressure plate device. The fixing plate, pressure plate column, and connecting column are integrated into a single unit, avoiding the loosening risks of traditional assembled structures. This design resists external vibrations, collisions, and other external forces, ensuring stable positioning of all components in complex electrical environments and laying the foundation for reliable device operation. The connecting plate forms a threaded structure with the pressure plate column via a threaded fixing rod, replacing the traditional plug-and-play operation. Maintenance personnel only need to rotate the threaded fixing rod to tighten or loosen the connecting plate, adapting to compact installation spaces, reducing operational difficulty and labor intensity, and improving work efficiency. The wire and clamp are integrated and engage with the connecting column via the clamp, enabling quick wire connection, shortening installation and disassembly time, and preventing wire loosening or detachment due to vibration during operation, reducing poor contact faults and ensuring stable circuit continuity.

[0016] This invention proposes a relay protection device. The overall protective assembly provides physical protection for the internal electrical components and pressure plate device. The cabinet door achieves convenient locking through a hinge rotation and a snap-lock / plug-in elastic locking structure, resisting external impacts and dust intrusion while preventing accidental opening and ensuring the safety of the core components. The desiccant boxes in the moisture-proof protective assembly are arranged at equal intervals to uniformly absorb ambient moisture, preventing corrosion and short-circuit faults caused by dampness. The support frame, through a sliding structure of sliders, grooves, and rollers, allows for easy removal and replacement of the desiccant, reducing maintenance difficulty and time. The integrated relay protection pressure plate device, combined with overall protection and moisture-proof functions, forms a comprehensive advantage of structural stability, convenient operation, and environmental adaptability. This allows the equipment to maintain stable performance and extend its service life in complex electrical operating environments such as vibration, humidity, and external impacts. Attached Figure Description

[0017] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the cabinet door of a relay protection device according to the present invention in the open state.

[0019] Figure 2 This is a schematic diagram of the cabinet door of a relay protection device according to the present invention in the closed state.

[0020] Figure 3 This is a schematic diagram of a relay protection pressure plate device according to the present invention.

[0021] Figure 4 This is a schematic diagram of a moisture-proof protection component for a relay protection device according to the present invention.

[0022] Figure 5This is a schematic diagram of the overall protection component of a relay protection device according to the present invention.

[0023] Among them, 1 is the relay protection pressure plate assembly, 101 is the fixing plate, 102 is the pressure plate column, 103 is the connecting column, 104 is the connecting plate, 105 is the threaded fixing rod, 106 is the clamping block, and 107 is the wire; 2 is the moisture-proof protection assembly, 201 is the support frame, 202 is the slide groove, 203 is the slider, 204 is the roller, 205 is the support frame, and 206 is the desiccant placement box; 3 is the overall protection assembly, 301 is the protective cabinet, 302 is the hinge, 303 is the cabinet door, 304 is the buckle, 305 is the metal shell, 306 is the second spring, 307 is the insertion rod, 4 is the mounting block, and 5 is the internal electrical components. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Example 1 See Figure 3 A relay protection pressure plate device includes a relay protection pressure plate assembly 1. The relay protection pressure plate assembly 1 includes a fixed plate 101, a pressure plate column 102, a connecting column 103, a threaded fixing rod 105, a connecting plate 104, a locking block 106, and a wire 107. The fixed plate 101, pressure plate column 102, and connecting column 103 are all integrally formed. The pressure plate column 102 is set on the outer wall of the fixed plate 101, and the connecting column 103 is set on one side of the pressure plate column 102. The threaded fixing rod 105 is connected inside the connecting column 103, and the threaded fixing rod 105 is aligned with the vertical central axis of the pressure plate column 102. The connecting plate 104 is sleeved on the outside of the threaded fixing rod 105, and the connecting plate 104 and the pressure plate column 102 form a threaded structure through the threaded fixing rod 105. The locking block 106 is engaged with the connecting column 103, and the wire 107 is connected to the inside of the locking block 106.

[0029] The threaded fixing rod 105 has an external thread, and the inner wall of the pressure plate column 102 has a first internal thread. The threaded fixing rod 105 rotates relative to the pressure plate column 102 and is positioned axially. The connecting plate 104 has a through hole with a second internal thread inside. The external thread engages with the first and second internal threads. Rotating the threaded fixing rod 105 causes the connecting plate 104 to move axially toward the pressure plate column 102 until it is tightly fitted with the pressure plate column 102, thus achieving a fixed connection and enabling circuit conduction or protection function activation. Reverse rotation of the threaded fixing rod 105 causes the connecting plate 104 to move axially away from the pressure plate column 102, separating the two and cutting off the corresponding circuit or disabling the protection function. Traditional plug-in structures rely on "physical plugging and pulling force" to achieve the engagement between the connecting plate and the pressure plate column. In contrast, the "threaded structure" of this solution replaces plugging and pulling with rotary transmission. The rotational torque is less than the plugging and pulling force, reducing the labor intensity of maintenance personnel. Rotational operation does not require a large axial space, solving the problem of limited operating space in traditional plug-in structures. The positioning accuracy of threaded engagement is higher than that of plug-in structures, avoiding component wear and improving connection reliability.

[0030] The fixing plate 101 and the pressure plate column 102 are integrated, the fixing plate 101 and the connecting column 103 are integrated, and the clamping block 106 and the wire 107 are integrated. The integrated design of the fixing plate 101 with the pressure plate column 102 and the connecting column 103 avoids the risk of loosening in traditional assembled structures such as screw fixation and snap-fit ​​connections, improving the structure's vibration and impact resistance; reducing the number of parts, simplifying the assembly process, and reducing processing and assembly errors; ensuring the relative positional accuracy of the pressure plate column 102 and the connecting column 103, ensuring the central axis of the threaded fixing rod 105 coincides with that of the pressure plate column 102 (claim 4), thereby ensuring the thread fit accuracy of the connecting plate 104. The integrated design of the clamping block 106 and the wire 107 ensures the tightness of the electrical connection, preventing the wire from loosening or falling off due to vibration or pulling, reducing poor contact failures; simplifying the assembly process of the wire and the clamping block, improving construction efficiency without the need for additional welding or screw fixing.

[0031] The working principle of a relay protection pressure plate device is as follows: The fixed plate 101, pressure plate column 102, and connecting column 103 are integrated to form a rigid load-bearing frame, which avoids the displacement of components caused by external vibration and collision, and provides a stable reference for subsequent mechanical transmission and electrical connection. At the same time, the threaded fixing rod 105 is aligned with the vertical center axis of the pressure plate column 102 to ensure balanced force during transmission and prevent the connecting plate 104 from shifting.

[0032] Protection function activation: Rotate the threaded fixing rod 105 clockwise, and using the thread meshing transmission characteristics, drive the connecting plate 104 sleeved on the outside of the threaded fixing rod to move axially toward the pressure plate column 102 until the two are tightly fitted. At this time, the connecting plate 104 acts as a conductive medium, connecting the electrical circuit between the pressure plate column 102 and the connecting column 103, and the corresponding relay protection function is activated.

[0033] Protection function deactivation: Rotate the threaded fixing rod 105 counterclockwise. The threaded drive causes the connecting plate 104 to move away from the pressure plate column 102 axially. After the two are separated, the electrical circuit is cut off, and the corresponding relay protection function is deactivated.

[0034] By replacing the traditional plug-in structure with a threaded drive, the operating space requirement and operating force are reduced, while the accuracy of on / off control is improved.

[0035] The wire 107 and the locking block 106 are integrated, and the locking block 106 is engaged with the connecting post 103. On the one hand, the engaging structure enables the wire and the connecting post to be quickly positioned and connected, ensuring the integrity of the electrical circuit. On the other hand, the integrated design and the locking fastening characteristics prevent the wire from loosening due to vibration or pulling, ensuring the stability of current transmission and reducing protection malfunctions caused by poor contact.

[0036] Example 2 See Figure 1 A relay protection device includes a relay protection pressure plate assembly, an internal electrical component 5, an overall protective assembly 3, and a moisture-proof protective assembly 2. The internal electrical component 5 is connected to the bottom of a fixing plate 101 of the relay protection pressure plate assembly 1. The overall protective assembly 3 is disposed outside the internal electrical component 5, and the moisture-proof protective assembly 2 is connected to the side of the overall protective assembly 3. (See also...) Figure 4 The moisture-proof protection component 2 includes a support frame 201, a slide groove 202, a slider 203, a roller 204, a support frame 205, and a desiccant box 206. The support frame 201 is connected to the overall protection component 3. The slide groove 202 is opened inside the support frame 201. The slider 203 is slidably connected to the slide groove 202. The support frame 205 is set on the slider 203. The roller 204 is set on one side of the support frame 205. The support frame 205 forms a sliding structure with the support frame 201 through the slider 203, the slide groove 202, and the roller 204. The desiccant box 206 is set inside the support frame 205.

[0037] See Figure 5 The overall protective assembly 3 includes a protective cabinet 301, a hinge 302, a cabinet door 303, a buckle 304, a metal shell 305, a second spring 306, and a plug rod 307. One side of the hinge 302 is connected to the protective cabinet 301, and the other side of the hinge 302 is connected to one side of the cabinet door 303. The buckle 304 is provided on the other side of the cabinet door 303. The metal shell 305 is provided on the protective cabinet 301, the second spring 306 is provided inside the metal shell 305, and the plug rod 307 is connected to one end of the second spring 306.

[0038] Cabinet door 303 forms a rotating structure with protective cabinet 301 via hinge 302. Cabinet door 303 is made of high-temperature resistant PC. PC polycarbonate is an amorphous, transparent thermoplastic engineering plastic with an original temperature resistance range of -40℃ to 120℃. After modification, the temperature resistance of high-temperature resistant PC can be increased to 150℃ to 180℃ in the short term, and the temperature resistance remains stable at 100℃ to 130℃ during long-term continuous use. During operation, the internal electrical components 5 and relay protection pressure plate assembly 1 of the power equipment generate heat, especially within the sealed overall protective assembly 3, where localized high temperatures can easily form. High-temperature resistant PC can prevent the cabinet door from deforming and aging due to high temperatures, ensuring the integrity of the protective structure. PC itself is an excellent electrical insulation material, and after modification, it still maintains high insulation properties, preventing accidental conduction of the cabinet door and complying with the electrical safety specifications for power equipment. High-temperature resistant PC also has impact resistance and aging resistance, resisting external collisions and dust corrosion, while being lighter than metal materials, thus not increasing the operational burden of opening and closing the cabinet door. PC material has good transparency, and after high-temperature modification, it still maintains a certain degree of light transmittance, allowing maintenance personnel to observe the internal operating status of the equipment without opening the door, improving the convenience of operation and maintenance.

[0039] The cabinet door 303 and the latch 304 are integrated, ensuring the relative positional accuracy of the latch 304 and the cabinet door 303, and ensuring the alignment of the latch with the insertion rod 307; this also enhances the structural strength of the latch, preventing breakage or detachment due to frequent opening and closing, and extending its service life. The latch 304 and the insertion rod 307 form an engaging structure, and the insertion rod 307 forms an elastic structure with the metal shell 305 via the second spring 306. The buckle 304 and the insertion rod 307 form a detachable fixed connection structure through a "concave-convex fit". One of them has a protrusion or groove, and the other has a corresponding groove or protrusion. They are relatively fixed through mechanical fitting and can be separated under external force. The insertion rod 307 uses the second spring 306 as the elastic medium and forms a "telescopic and returnable" fit with the metal shell 305. The second spring 306 provides elastic force. When the insertion rod 307 is subjected to external force, it can move along the internal direction of the metal shell 305 and compress the spring. After the external force disappears, the elastic restoring force of the spring can drive the insertion rod 307 back to the initial position. The metal shell 305 is a fixed base: fixed to one side of the protective cabinet 301, with a hollow internal structure to accommodate the second spring 306 and the insertion rod 307, restricting their movement to only axial extension and contraction; the second spring 306 is an elastic driving component: one end is fixed to the bottom of the inside of the metal shell 305, and the other end is fixed to the top of the insertion rod 307. In its natural state, it is in an extended state, pushing the bottom end of the insertion rod 307 out of the metal shell 305; the insertion rod 307 is a "locking actuator": driven by the second spring 306 to remain in an extended state, and its bottom end can engage with the slot of the buckle 304; the buckle 304 is a "locking mating component": fixed to the top of the cabinet door 303, and has a slot or groove that matches the bottom end of the insertion rod 307, for engaging with the insertion rod 307 to achieve locking.

[0040] Door closing and locking process: Rotate the cabinet door 303 towards the protective cabinet 301. The cabinet door forms a rotating structure with the protective cabinet through the hinge 302. The buckle 304 at the top of the cabinet door will contact the bottom end of the plug rod 307 and apply pressure to the plug rod into the metal shell 305. After being pressed, the plug rod compresses the second spring 306 and moves upward along the inside of the metal shell until the cabinet door is completely closed and the buckle and plug rod are aligned. At this time, the pressure of the buckle on the plug rod disappears, the second spring 306 elastically returns to its original position, pushes the plug rod 307 downward to extend and engage in the slot of the buckle 304, thereby locking the cabinet door and preventing it from rotating at will.

[0041] Door opening and unlocking process: The maintenance personnel press the top of the plug rod 307 towards the inside of the metal shell 305. The plug rod compresses the second spring 306 and moves upward, and its bottom end disengages from the slot of the buckle 304. At this time, the engagement between the buckle and the plug rod is released, and the cabinet door 303 can be freely rotated through the hinge 302 to realize the door opening operation. After releasing the plug rod, the second spring 306 resets again, and the plug rod returns to its initial extended state, waiting for the next locking.

[0042] The spring-driven plug and the buckle fit tightly, which can resist external vibration and impact and prevent the cabinet door from being opened accidentally. No additional tools are required. The door can be unlocked by pressing the plug, which greatly improves maintenance efficiency compared to traditional screw fixing. The locking function is achieved by using only basic components such as spring, plug and buckle, which has low processing cost and low failure rate.

[0043] See Figure 4 The desiccant boxes 206 are arranged at equal intervals inside the support frame 205, and the desiccant boxes 206 and the support frame 205 are integrated. This integrated design, with multiple desiccant boxes and the support frame molded together, forms an integral structure with multiple receiving cavities. This ensures the positional stability of the desiccant boxes, preventing displacement or detachment during equipment vibration, and ensuring uniform moisture protection. It also simplifies the structural design, reduces the number of parts, and lowers assembly complexity.

[0044] The support frame 201 and the slider 203 are integrated. This improves the rigidity and stability of the sliding structure, preventing jamming and misalignment caused by assembly gaps between the slider and the support frame; it also enhances the load-bearing capacity of the slider, ensuring the smooth sliding of the support frame 205 and the desiccant box 206.

[0045] See Figure 1 and Figure 2 The top of the moisture-proof and protective component 2 is fixedly connected to the mounting block 4.

[0046] The working principle of a relay protection device is as follows: Internal electrical appliance 5, as the core control unit of relay protection, receives operating status signals of the power system, such as abnormal current and voltage signals. The relay protection pressure plate device controls the connection between the internal electrical appliance and the main circuit of the power system through mechanical transmission and electrical switching principles. When the system is running normally, the pressure plate device is engaged, the circuit is connected, and the internal electrical appliance monitors in real time and stands by. When the system fails or the equipment is under maintenance, the pressure plate device is disengaged, the circuit is cut off, and the internal electrical appliance stops executing the corresponding protection logic to avoid malfunction.

[0047] The protective cabinet 301 of the overall protective component 3 forms a closed cavity, isolating it from external collisions, dust, and foreign object intrusion, and protecting the internal electrical appliances and pressure plate device. The cabinet door 303 is opened and closed by hinges 302, and at the same time, it utilizes the elastic locking mechanism of buckle 304, insert rod 307, and second spring 306: when closing the door, the buckle squeezes the insert rod to compress the spring, and after alignment, the spring resets and pushes the insert rod to engage with the buckle, thereby locking the cabinet door and preventing accidental opening; when opening the door, press the insert rod to compress the spring, release the engagement, and the cabinet door can be rotated, taking into account both the reliability of protection and the convenience of operation.

[0048] The cabinet door is made of high-temperature resistant PC material, which not only ensures insulation and avoids the risk of electric shock, but also has high temperature resistance and impact resistance, making it suitable for the local high temperature environment of power equipment during operation, while maintaining transparency for easy observation of status.

[0049] The desiccant in the desiccant box 206 adsorbs moisture that seeps into the equipment from the outside, reducing the humidity of the cavity and preventing corrosion of metal parts of internal electrical components and pressure plate devices, as well as short circuits of electrical components. The desiccant box and the support frame 205 are integrated and arranged at equal intervals to ensure uniform moisture absorption. The support frame has a sliding structure formed by the slider 203, the slide groove 202 and the roller 204. When the desiccant is saturated with moisture, the support frame can be pulled out of the support frame 201 directly. After replacing the desiccant, it can be pushed back without disassembling the entire assembly, ensuring the continuous effectiveness of the moisture-proof function.

[0050] The structural stability of the pressure plate device provides the foundation for the core protection function. The overall protection components resist external physical interference, and the moisture-proof components solve the problem of environmental humidity. The three components, together with the internal electrical components, form a collaborative system for functional execution, external protection, and environmental adaptation, ensuring that the equipment can still accurately enable and disable the relay protection function and operate stably under complex working conditions such as vibration, humidity, and compact installation.

[0051] Example 3 Please see Figures 1 to 5As shown, a relay protection pressure plate device includes a relay protection pressure plate assembly 1, with an internal electrical appliance 5 fixedly connected to the bottom of the relay protection pressure plate assembly 1; the relay protection pressure plate assembly 1 includes a fixing plate 101, a pressure plate column 102 fixedly connected to the outer wall of the fixing plate 101, and a connecting column 103 provided on the side of the pressure plate column 102; a threaded fixing rod 105 is connected inside the connecting column 103, and a connecting plate 104 is provided outside the threaded fixing rod 105; the bottom of the connecting column 103... The device is connected by a locking block 106, and a wire 107 is fixedly connected inside the locking block 106; the fixing plate 101 and the pressure plate column 102 are integrated, and the fixing plate 101 and the connecting column 103 are also integrated; the threaded fixing rod 105 and the pressure plate column 102 are aligned vertically, and the connecting plate 104 forms a threaded structure with the pressure plate column 102 through the threaded fixing rod 105; the wire 107 is connected to the pressure plate column 102 through the locking block 106, and the locking block 106 is also fixedly connected inside the pressure plate column 102. 06 and wire 107 are integrated into a relay protection device, including an overall protective component 3 installed outside the internal electrical appliance 5, and a moisture-proof protective component 2 installed on the side of the overall protective component 3, and an installation block 4 fixedly connected to the top of the moisture-proof protective component 2; the moisture-proof protective component 2 includes a support frame 201, a sliding groove 202 is opened inside the support frame 201, and a slider 203 is slidably connected inside the sliding groove 202, a support frame 205 is fixedly connected to the top of the slider 203, and a roller 204 is fixedly connected to the side of the support frame 205, and a desiccant placement box 206 is fixedly connected inside the support frame 205; the desiccant placement boxes 206 are arranged at equal intervals inside the support frame 205, and the desiccant placement boxes 206 and the support frame 205 are integrated; the support frame 205 forms a sliding structure with the support frame 201 through the slider 203, the sliding groove 202, the roller 204, and the support frame 201 and the slider 203 are integrated.

[0052] Please see Figure 5 The relay protection device shown includes an overall protection component 3 comprising a protective cabinet 301. A hinge 302 is fixedly connected to one side of the protective cabinet 301, and a cabinet door 303 is fixedly connected to the other side of the hinge 302. A buckle 304 is fixedly connected to the top of the cabinet door 303. A metal shell 305 is fixedly connected to the other side of the protective cabinet 301. A second spring 306 is provided inside the metal shell 305, and a plug rod 307 is fixedly connected to the top of the second spring 306. The cabinet door 303 and the protective cabinet 301 form a rotating structure through the hinge 302, and the material of the cabinet door 303 is set as high-temperature resistant PC. The cabinet door 303 and the buckle 304 are integrated, and the buckle 304 and the plug rod 307 form an engaging structure. The plug rod 307 and the metal shell 305 form an elastic structure through the second spring 306.

[0053] This invention, through the inclusion of a relay protection pressure plate assembly, achieves overall structural stability. The fixed plate, pressure plate column, and connecting column are integrated, significantly enhancing the robustness of the connections between components. This integrated structure avoids the loosening issues that can occur with traditional assembled structures, effectively resisting external vibrations, collisions, and other forces. It ensures that the pressure plate column and connecting column maintain a stable position even in the complex operating environment of a power system, laying a solid foundation for the reliable operation of the entire device. Regarding ease of operation, the threaded fixing rod and pressure plate column are aligned with the vertical central axis, and the connecting plate forms a threaded structure with the pressure plate column via the threaded fixing rod. This design provides significant operational convenience. Compared to traditional plug-in structures, the threaded connection method makes the installation and removal of the connecting plate easier and more precise. Maintenance personnel can easily tighten or loosen the connecting plate and pressure plate column by simply rotating the threaded fixing rod. The operation is simple and efficient, especially when the pressure plate devices are installed in a compact location and there are many of them. This effectively improves work efficiency and reduces operational difficulty and labor intensity. Regarding the reliability of the wire connection, the wire is connected to the pressure plate column via a locking block, and the locking block and wire are integrated into one unit. This connection method has significant advantages. The locking connection enables quick connection between the wire and the pressure plate column, greatly shortening the time for wire installation and disassembly compared to the traditional screw fixing method, and improving work efficiency during equipment maintenance or component replacement. At the same time, the integrated locking block and wire ensure a tight connection. Combined with the characteristics of the locking structure itself, it effectively prevents the wire from loosening or falling off during operation due to vibration, ensuring stable and reliable electrical connections and reducing malfunctions caused by poor contact.

[0054] This invention features a moisture-proof protection component, whose design is highly practical in terms of moisture protection. The desiccant boxes are arranged at equal intervals within the support frame and are integrated with the frame. This layout allows the desiccant to be evenly distributed inside the equipment, maximizing its moisture absorption effect and efficiently adsorbing moisture from the surrounding environment. This effectively reduces the internal humidity of the equipment, preventing internal electrical components and relay protection pressure plate components from rusting, short circuits, and other malfunctions due to moisture, significantly improving the operational stability and service life of the equipment in humid environments. Simultaneously, the integrated design ensures a secure connection between the desiccant boxes and the support frame, preventing displacement or detachment due to vibrations during equipment operation, thus guaranteeing continuous and reliable moisture protection. From an operational convenience perspective, the support frame, with its sliding structure consisting of sliders, grooves, and rollers, greatly facilitates desiccant replacement and maintenance. When desiccant replacement is needed, maintenance personnel simply push the support frame; the sliders and grooves, along with the rolling action of the rollers, easily slide the support frame out of the support frame, eliminating the need for complex disassembly steps and saving time and effort. The integrated design of the support frame and slider enhances the stability of the sliding structure, ensuring smooth and stable sliding of the support frame and preventing jamming. This further improves the efficiency of maintenance work. In addition, the overall protection component is located outside the internal electrical components, providing comprehensive physical protection for the electrical components and relay protection pressure plate components inside the equipment. It resists external collisions, impacts, and the intrusion of dust and other impurities. Together with the moisture-proof protection component, it forms a multi-layer protection system, comprehensively improving the overall protection performance of the relay protection equipment and enabling it to work stably and reliably in various complex power system operating environments.

[0055] This invention, through the inclusion of an integrated protective assembly, provides a robust physical protection foundation for core components such as electrical components and relay protection pressure plate assemblies within the equipment. This effectively resists external collisions, impacts, and pressure, reducing damage to internal components from external mechanical forces. The cabinet door is made of high-temperature resistant PC material, possessing not only excellent insulation properties but also the ability to withstand certain high-temperature environments, preventing deformation or damage due to excessively high local temperatures. Simultaneously, the transparent material allows maintenance personnel to observe the internal status of the equipment without opening the door, balancing protection and monitoring needs. Furthermore, the closed structure of the protective cabinet and door effectively prevents the intrusion of dust, moisture, and other impurities, forming a synergistic protection with the moisture-proof components, further enhancing the equipment's adaptability to complex environments. In terms of ease of operation, the cabinet door, connected to the protective cabinet via hinges, forms a rotating structure, making opening and closing the door more flexible and smooth. Maintenance personnel can easily open and close the cabinet by simply pulling the door and rotating it around the hinges, making operation labor-saving and convenient. Especially when the equipment needs inspection or maintenance, the cabinet door can be quickly opened for work, improving work efficiency. The integrated design of the cabinet door and the latch, combined with the latch's engagement structure and the elastic structure of the latch connected to the metal shell via a second spring, forms a reliable locking mechanism. When closing the cabinet door, the latch presses against the latch, compressing the second spring. Once the latch reaches the designated position, the second spring returns to its original position, pushing the latch into place and locking the door. To open, simply pull the latch upwards to compress the second spring, releasing the latch. This simple and quick operation requires no additional tools, ensuring both the door's sealing and stability after closing and simplifying the opening and closing process. Regarding structural stability and durability, the connection design of components such as the hinges, latches, latches, second spring, and metal shell is reasonable. The integrated design of the cabinet door and latch enhances connection strength and reduces the risk of component loosening. The elastic structure of the second spring ensures a tighter engagement between the latch and the latch and maintains good elasticity over long-term use, ensuring the long-term reliability of the locking function. The metal shell protects the second spring and the insert rod from direct corrosion by the external environment, extending the service life of the components and ensuring that the overall protective assembly can perform its protective function stably for a long time.

[0056] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed inventive subject matter.

[0057] The above content provides a further detailed description of the present invention. It should not be construed that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the defined protection scope of the present invention.

Claims

1. A relay protection pressure plate device, characterized in that, The system includes a relay protection pressure plate assembly (1), which comprises a fixing plate (101), a pressure plate column (102), a connecting column (103), a threaded fixing rod (105), a connecting plate (104), a locking block (106), and a wire (107). The fixing plate (101), the pressure plate column (102), and the connecting column (103) are all integrally formed. The pressure plate column (102) is disposed on the outer wall of the fixing plate (101), and the connecting column (103) is disposed on one side of the pressure plate column (102). The threaded fixing rod (105) is connected inside the connecting column (103), and the threaded fixing rod (105) is arranged to coincide with the vertical central axis of the pressure plate column (102); the connecting plate (104) is sleeved on the outside of the threaded fixing rod (105), and the connecting plate (104) forms a threaded structure with the pressure plate column (102) through the threaded fixing rod (105); the locking block (106) is engaged with the connecting column (103), and the wire (107) is connected to the inside of the locking block (106).

2. The relay protection pressure plate device according to claim 1, characterized in that, The threaded fixing rod (105) has an external thread on its exterior, and the pressure plate column (102) has a first internal thread on its inner wall. The threaded fixing rod (105) rotates relative to the pressure plate column (102) and is positioned axially. The connecting plate (104) has a through hole, and the through hole has a second internal thread inside. The external thread meshes with the first internal thread and the second internal thread.

3. The relay protection pressure plate device according to claim 1, characterized in that, The fixing plate (101) and the pressure plate column (102) are integrated, the fixing plate (101) and the connecting column (103) are integrated, and the card block (106) and the wire (107) are integrated.

4. A relay protection device, characterized in that, The device includes a relay protection pressure plate device as described in any one of claims 1-3, an internal electrical appliance (5), an overall protective assembly (3), and a moisture-proof protective assembly (2); the internal electrical appliance (5) is connected to the bottom of the fixing plate (101) of the relay protection pressure plate assembly (1); the overall protective assembly (3) is disposed outside the internal electrical appliance (5), and the moisture-proof protective assembly (2) is connected to the side of the overall protective assembly (3); the moisture-proof protective assembly (2) includes a support frame (201), a slide groove (202), a slider (203), a roller (204), a support frame (205), and a desiccant placement box (206). The support frame (201) is connected to the overall protective assembly (3). The slide groove (202) is opened inside the support frame (201). The slider (203) is slidably connected to the slide groove (202). The support frame (205) is set on the slider (203). The roller (204) is set on one side of the support frame (205). The support frame (205) forms a sliding structure with the support frame (201) through the slider (203), the slide groove (202) and the roller (204). The desiccant placement box (206) is set inside the support frame (205).

5. A relay protection device according to claim 4, characterized in that, The overall protective assembly (3) includes a protective cabinet (301), a hinge (302), a cabinet door (303), a buckle (304), a metal shell (305), a second spring (306), and a plug (307); one side of the hinge (302) is connected to the protective cabinet (301), and the other side of the hinge (302) is connected to one side of the cabinet door (303); the buckle (304) is provided on the other side of the cabinet door (303); the metal shell (305) is provided on the protective cabinet (301); the second spring (306) is provided inside the metal shell (305); and the plug (307) is connected to one end of the second spring (306).

6. A relay protection device according to claim 5, characterized in that, The cabinet door (303) forms a rotating structure with the protective cabinet (301) through the hinge (302), and the cabinet door (303) is made of high temperature resistant PC.

7. A relay protection device according to claim 5, characterized in that, The cabinet door (303) and the buckle (304) are integrated. The buckle (304) and the insert rod (307) form an engaging structure. The insert rod (307) and the metal shell (305) form an elastic structure through the second spring (306).

8. A relay protection device according to claim 4, characterized in that, The desiccant placement boxes (206) are arranged at equal intervals inside the support frame (205), and the desiccant placement boxes (206) and the support frame (205) are integrated.

9. A relay protection device according to claim 4, characterized in that, The support frame (201) and the slider (203) are integrated.

10. A relay protection device according to claim 4, characterized in that, The top of the moisture-proof and protective component (2) is fixedly connected to an installation block (4).

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