Relay protection device

Abstract

The application discloses a relay protection device, and relates to the technical field of relay protection; the relay protection device comprises a box body, plug-in modules, a circuit board and a mounting frame; the mounting frame is internally provided with a mounting space for mounting the plug-in modules, and the mounting space is internally provided with a guide portion; one side of the box body is provided with a socket which is communicated with the outside and the mounting space; the plug-in modules are driven to move to a preset position in the mounting space under the guidance of the guide portion, so that the plug-in modules and the circuit board are connected through first plug-in connectors; when maintenance is needed, the plug-in modules only need to be pulled out, so that the plug-in modules and the circuit board can be quickly separated, the maintenance time is significantly reduced, and the maintenance efficiency is improved; since the plug-in modules and the circuit board are connected through the first plug-in connectors, the connection positions and modes of each plug-in module are standardized, problems caused by manual wiring errors are reduced, and the reliability and stability of the relay protection device are better improved.

Description

Technical Field

[0001] This application relates to the field of relay protection technology, and in particular to a relay protection device. Background Technology

[0002] Most common relay protection devices currently use an integrated structure with wiring positions located on the back of the device. In addition, most relay protection devices use wire harnesses to connect plug-in modules and circuit boards, and each plug-in module usually involves a large number of wire harnesses. This makes the connection process complex and prone to errors. Operators need to carefully check the connection position of each cable. Even a slight carelessness may lead to wiring errors, thereby affecting the normal operation of the device. Furthermore, the limitations of special cabinet types and miniaturization further exacerbate the inconvenience of installation, commissioning, and maintenance. On-site construction is difficult, operation is challenging, and time-consuming, failing to meet the reliability requirements of power supply. Utility Model Content

[0003] The main purpose of this application is to propose a relay protection device that aims to improve the inconvenience of installation, commissioning and maintenance caused by the use of wire harness connections in current relay protection devices.

[0004] To achieve the above objectives, this application proposes a relay protection device, which includes: Box; An installation frame is disposed inside the box, and an installation space is formed on the inner side of the installation frame. One side of the box has multiple ports that connect to the outside and the installation space. The installation space has guide parts corresponding to the positions of the ports. Circuit board, disposed within the enclosure; and A plug-in module is disposed within the installation space. The circuit board and the plug-in module are located on opposite sides of the housing. The plug-in module can move along the guide portion within the installation space to a preset position so that the plug-in module and the circuit board are connected via a first connector.

[0005] In one embodiment, at least one side of the mounting frame is spaced apart from the inner wall of the housing to form a cavity between the mounting frame and the inner wall of the housing; The cavity is provided with sound insulation material; and / or, the cavity is provided with an expansion joint; and / or, the cavity is provided with a heat dissipation component.

[0006] In one embodiment, the mounting frame includes: Two first mounting plates are spaced apart along a first direction; and Two second mounting plates are arranged at intervals along a second direction, and two first mounting plates are disposed between the two second mounting plates. In the second direction, the opposite ends of the first mounting plates are respectively connected to the second mounting plates to form the mounting space between the two first mounting plates and the two second mounting plates. The guide portion is disposed on one side of the two first mounting plates facing the mounting space. There are multiple plug-in modules, and the multiple plug-in modules are arranged sequentially along the second direction in the mounting space. The first mounting plate and / or the second mounting plate are fixedly connected to the housing, and the first direction and the second direction are perpendicular to each other.

[0007] In one embodiment, in the first direction, at least one of the two first mounting plates and the inner wall of the corresponding housing are spaced apart to form a first sub-cavity between the first mounting plate and the inner wall of the housing; and / or In the second direction, at least one of the two second mounting plates is spaced apart from the inner wall of the corresponding housing to form a second sub-cavity between the second mounting plate and the inner wall of the housing; The first sub-cavity and / or the second sub-cavity constitute the cavity.

[0008] In one embodiment, the first mounting plate has a plurality of support plates spaced apart along the second direction on the side facing the mounting space, and the support plates extend along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other. In the first direction, a plurality of support plates located on the two first mounting plates are correspondingly provided, and in the first direction, two corresponding support plates constitute a support member; In the second direction, two adjacent support members constitute the guide portion.

[0009] In one embodiment, the first connector includes: A plug terminal is provided in one of the plug-in module and the circuit board; and A socket terminal is provided on the other of the plug-in module and the circuit board. The plug-in module moves from the socket into the installation space to a preset position, so that the plug terminal and the socket terminal can be plugged in and connected.

[0010] In one embodiment, the socket terminal has a guide pin on the side facing the plug terminal, and the plug terminal has a guide hole at a corresponding position that mates with the guide pin; and / or The plug terminal is provided with a guide pin on the side facing the socket terminal, and the socket terminal is provided with a guide hole at a corresponding position that cooperates with the guide pin.

[0011] In one embodiment, the housing includes: Two first plates are arranged at intervals along a first direction; and Two second plates are arranged at intervals along a second direction, and the opposite ends of the first plate along the second direction are respectively connected to the second plates. Two third plates are arranged at intervals along a third direction, and the two ends of the first plate along the third direction are respectively connected to the third plates. The socket is formed on one of the third plates; the first direction, the second direction, and the third direction are perpendicular to each other.

[0012] In one embodiment, the second plate includes: First board; and Two second sub-boards are respectively connected to the opposite ends of the first sub-board along the first direction, and the two second sub-boards are perpendicularly connected to the first sub-board, with the second sub-boards extending toward the first board. In the first direction, the first plate has a first wall facing away from the mounting frame, and in the second direction, the opposite ends of the first wall are respectively at least partially attached to the corresponding second sub-plate.

[0013] In one embodiment, the relay protection device further includes a power supply module, which is disposed within the installation space; The power module and the circuit board are connected via a second connector.

[0014] This application's relay protection device includes a housing, plug-in modules, a circuit board, and a mounting frame. The mounting frame has an installation space for the plug-in modules, and this space includes a guide. One side of the housing has a socket connecting to the outside and the installation space, and the socket corresponds to the guide. The plug-in modules are inserted into the installation space through the socket and, guided by the guide, moved to a preset position within the installation space, connecting the plug-in modules and the circuit board via a first connector. When maintenance or repair is required, the plug-in modules can be quickly separated from the circuit board by simply pulling them out, significantly reducing maintenance time and improving efficiency. Because the plug-in modules and circuit board are connected via the first connector, the connection position and method of each plug-in module are standardized, reducing problems caused by manual wiring errors and significantly improving the reliability and stability of the relay protection device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This application provides schematic diagrams of the overall structure of a relay protection device for some embodiments. Figure 2 for Figure 1 A diagram showing the process after removing the plug-in module and power module; Figure 3 This is a schematic diagram showing the installation position relationship between the frame and the enclosure in this application; Figure 4 This is a schematic diagram showing the connection relationship between the plug-in module, the power module, and the circuit board in this application. Figure 5 This is a schematic diagram showing the circuit board and carrier board in their separated states according to this application; Figure 6 This is a schematic diagram showing the arrangement of the plug-in modules and power modules in this application; Figure 7 This is a schematic diagram showing the two second plates separated from the housing in this application; Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 This is a schematic diagram showing the plug-in relationship between the plug-in module, power module, and circuit board from another perspective.

[0017] Explanation of icon numbers: 100. Relay protection devices; 10. Housing; 11. First panel; 111. Ventilation holes; 112. Receiving groove; 113. First wall; 12. Second panel; 121. First sub-board; 122. Second sub-board; 13. Third panel; 131. Socket; 132. Handrail; 20. Mounting frame; 21. Mounting space; 211. First mounting plate; 2111. Perforation; 212. Second mounting plate; 22. Guide section; 221. Support component; 2211. Support plate; 23. Third mounting plate; 30. Circuit board; 31. Carrier board; 40. Plug-in module; 50. Cavity; 51. First sub-cavity; 52. Second sub-cavity; 60. First connector; 61. Plug terminal; 611. Guide hole; 62. Socket terminal; 621. Guide pin; 70. Power module; 80. Second connector; 90. Hand screw.

[0018] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0022] Most common relay protection devices currently use an integrated structure with wiring positions located on the back of the device. In addition, most relay protection devices use wire harnesses to connect plug-in modules and circuit boards, and each plug-in module usually involves a large number of wire harnesses. This makes the connection process complex and prone to errors. Operators need to carefully check the connection position of each cable. Even a slight carelessness may lead to wiring errors, thereby affecting the normal operation of the device. Furthermore, the limitations of special cabinet types and miniaturization further exacerbate the inconvenience of installation, commissioning, and maintenance. On-site construction is difficult, operation is challenging, and time-consuming, failing to meet the reliability requirements of power supply.

[0023] Based on this, refer to Figures 1-3 As shown, this application embodiment provides a relay protection device 100, which includes a housing 10, a mounting frame 20, a circuit board 30, and a plug-in module 40; wherein, the mounting frame 20 is disposed inside the housing 10, and an installation space 21 for installing the plug-in module 40 is formed on the inner side of the mounting frame 20, such as... Figure 2 As shown, one side of the enclosure 10 has multiple ports 131 connecting to the outside and the installation space 21, such as... Figure 3 As shown, a guide portion 22 corresponding to the position of the socket 131 is provided in the installation space 21; the circuit board 30 is located in the housing 10, and the circuit board 30 and the plug-in module 40 are located on opposite sides of the housing 10. The plug-in module 40 is placed into the installation space 21 through the socket 131, and the plug-in module 40 is driven to move along the guide portion 22 in the installation space 21. Thus, when the plug-in module 40 moves to the preset position in the installation space 21 under the guidance of the guide portion 22, the plug-in module 40 and the circuit board 30 can be connected through the first connector 60.

[0024] In this embodiment, the plug-in module 40 and the circuit board 30 are connected by a first connector 60, making the installation process very simple. When installation is required, the operator only needs to place the plug-in module 40 into the installation space 21 through the socket 131 and move it to the preset position under the guidance of the guide 22 to complete the connection between the plug-in module 40 and the circuit board 30. Compared with the traditional method of connecting with wire harnesses, the manual wiring steps are significantly reduced, thereby reducing problems caused by wiring errors. Due to the simple operation, the installation time is greatly shortened, improving the overall installation efficiency, especially in large-scale installation scenarios, where the advantages are more obvious.

[0025] Understandably, traditional wiring harness connection methods can easily lead to cable tangles, increasing the risk of poor contact and short circuits. Connecting the plug-in module 40 and the circuit board 30 using the first plug-in connector 60, or even using a plug-in connection method, can effectively avoid the above problems and improve the operational reliability of the device.

[0026] Furthermore, since the plug-in module 40 and the circuit board 30 are directly connected by the first connector 60, the connection position and method of each plug-in module 40 to the circuit board 30 are standardized, reducing problems caused by manual wiring errors and further improving the reliability of the device.

[0027] In this embodiment, when inspection or maintenance is required, simply pull out the plug-in module 40 to achieve quick and efficient separation of the plug-in module 40 from the circuit board 30. This design makes the maintenance process fast and efficient, reducing equipment downtime.

[0028] In this embodiment, a guide section 22 is provided in the installation space 21 to guide the plug-in module 40 to move along a preset trajectory. This allows the plug-in module 40 to move to a preset position along a preset path within the installation space 21, thereby reducing errors from manual operation and making the installation process more reliable and faster. With the guidance of the guide section 22, the operator only needs to place the plug-in module 40 into the installation space 21 and move it to the preset position along the guide section 22 to complete the connection, which greatly simplifies the operation process and reduces the difficulty of operation. Even in some small cabinets with limited space, the precise guidance of the guide section 22 can enable the plug-in module 40 to be installed quickly, making the operation simple and convenient, reducing the difficulty of construction and significantly shortening the installation time.

[0029] In some embodiments, the guide portion 22 may be designed with a guide rail or guide groove to ensure that the plug-in module 40 can move smoothly along a predetermined path, so that when the plug-in module 40 moves to a preset position in the installation space 21, it can achieve a precise connection with the circuit board 30 through the first plug-in member 60.

[0030] Reference Figure 3 As shown in one embodiment of this application, at least one side of the mounting frame 20 is spaced apart from the inner wall of the housing 10, so that a cavity 50 is formed between the mounting frame 20 and the inner wall of the housing 10. The existence of the cavity 50 provides additional space for installing other components, so that the relay protection device 100 can be flexibly configured according to different needs, which can improve the expandability of the relay protection device 100 and facilitate upgrades or the addition of new functional modules. That is, the setting of the cavity 50 not only provides space for installing other components, but also meets a variety of different usage needs, thereby improving the flexibility and functionality of the relay protection device 100.

[0031] In some embodiments, when the location of the relay protection device 100 needs to maintain the lowest possible noise level, some sound-insulating material can be filled into the cavity 50 to effectively reduce the noise generated by the relay protection device 100 during operation. In some noise-sensitive environments, such as substation control rooms or data centers, the noise generated by the device during operation may affect the normal work of staff. Filling the cavity 50 with sound-insulating materials, such as sound-absorbing sponge, sound-insulating foam, or sound-insulating felt, can effectively absorb and reflect sound waves, reducing the propagation of noise.

[0032] In other embodiments, expansion joints can be provided in the cavity 50. The expansion joints can be conveniently connected to external devices, such as sensors, communication modules or other functional modules, to expand the functions of the relay protection device 100. The type and number of expansion joints can be flexibly configured according to different needs to improve the adaptability of the device. The reserved expansion joints provide convenience for future upgrades and expansions, making it easy to add new functions without replacing the entire device.

[0033] In other embodiments, a heat sink can be provided inside the cavity 50. In high-temperature environments, the heat dissipation efficiency of the relay protection device 100 directly affects its stability and service life. For example, in outdoor substations or high-temperature industrial environments, the relay protection device 100 requires effective heat dissipation measures. Installing a heat sink, such as a cooling fan, inside the cavity 50 allows the heat generated by the relay protection device 100 to be dissipated through active cooling. This ensures stable operation of the device in high-temperature environments, reduces component damage caused by high temperatures, extends the service life of the device, and improves the reliability of the relay protection device 100.

[0034] It should be noted that when a heat sink is installed inside the cavity 50, a heat dissipation hole 111 needs to be installed on the housing 10 at the corresponding position of the cavity 50 to quickly dissipate the heat dissipation component to the outside of the device and improve heat dissipation efficiency. The number and distribution of the heat dissipation holes 111 should be reasonable, avoiding too many or too few. Too many heat dissipation holes 111 may affect the structural strength of the housing 10, while too few may affect the heat dissipation effect. The heat dissipation holes 111 should be designed with dustproof measures, such as installing a dustproof net or dustproof cover, to prevent dust from entering the device. In outdoor environments, the heat dissipation holes 111 should be designed with waterproof measures, such as installing a waterproof and breathable membrane, to prevent rainwater from entering the device.

[0035] Reference Figure 3 As shown, in one embodiment of this application, the mounting frame 20 includes two first mounting plates 211 and two second mounting plates 212; in this embodiment, the first direction X is defined as the length direction of the relay protection device 100, the second direction Z is the height direction of the relay protection device 100, and the third direction Y is the width direction of the relay protection device 100, and the first direction X, the second direction Z, and the third direction Y are all perpendicular to each other; Figure 3 As shown, two first mounting plates 211 are arranged at intervals along the first direction X, and two second mounting plates 212 are arranged at intervals along the second direction Z. The two first mounting plates 211 are located between the two second mounting plates 212. In the second direction Z, the opposite ends of the first mounting plates 211 are respectively connected to the second mounting plates 212, thereby forming the above-mentioned mounting space 21 between the two first mounting plates 211 and the two second mounting plates 212, which is used to install the plug-in module 40.

[0036] In this embodiment, the guide part 22 is disposed on the side of the two first mounting plates 211 facing the mounting space 21, so that when the plug-in module 40 enters the mounting space 21 through the socket 131, it can move along a preset path under the guidance of the guide part 22 disposed on the side of the two first mounting plates 211 facing the mounting space 21.

[0037] In this embodiment, multiple plug-in modules 40 are provided, and the multiple plug-in modules 40 are arranged sequentially in the installation space 21 along the second direction Z. It can be understood that the number of plug-in modules 40 can be selected according to the specific usage scenario and functional requirements.

[0038] In this embodiment, as Figure 3 As shown, two first mounting plates 211 spaced apart along the first direction X and two second mounting plates 212 spaced apart along the second direction Z enclose the housing 10 to form an installation space 21 for installing the plug-in module 40. The two ends of the installation space 21 in the third direction Y are respectively open. The socket 131 is provided on one side of the housing 10 along the third direction Y, thereby enabling the installation space 21 to communicate with the external environment through the socket 131, and allowing the plug-in module 40 to enter the installation space 21 from the outside through the socket 131, thereby realizing the installation of the plug-in module 40.

[0039] It is understandable that, in the third direction Y, the end of the installation space 21 away from the socket 131 is also in an open state. The circuit board 30 can be set on the side of the installation space 21 away from the socket 131 in the third direction Y. That is, the circuit board 30 is set between the end of the installation space 21 away from the socket 131 in the third direction Y and the inner wall of the housing 10. In this way, when the plug-in module 40 is moved to the preset position along the guide 22, the plug-in module 40 can be connected to the circuit board 30 through the first plug-in member 60.

[0040] In some embodiments, the two opposite ends of the first mounting plate 211 along the second direction Z can be fully pressed and connected to the second mounting plate 212 to form a continuous contact surface, thereby achieving high mechanical stability, being able to withstand large external forces and vibrations, and forming a stable connection.

[0041] In other embodiments, the opposite ends of the first mounting plate 211 along the second direction may also be partially pressed into contact with the second mounting plate 212 to form an intermittent contact surface.

[0042] It is understandable that the first mounting plate 211 and the second mounting plate 212 can be connected using fasteners, such as bolts and screws; Figure 3As shown, the first mounting plate 211 has bent plates that are parallel to and in close contact with the second mounting plate 212 at both ends along the second direction Z. When connecting the first mounting plate 211 and the second mounting plate 212, fasteners can be used to penetrate the bent plates and the corresponding parts of the second mounting plate 212, thereby achieving a firm connection between the first mounting plate 211 and the second mounting plate 212.

[0043] In this embodiment, a mounting frame 20 is formed within the housing 10 by two first mounting plates 211 and two second mounting plates 212. To fix the mounting frame 20 within the housing 10, in some embodiments, the two first mounting plates 211 can be connected to the inner wall of the housing 10 respectively, thereby fixing the mounting frame 20 within the housing 10. In other embodiments, the two second mounting plates 212 can be connected to the inner wall of the housing 10 respectively, thereby fixing the mounting frame 20 within the housing 10. In still other embodiments, both the two first mounting plates 211 and the two second mounting plates 212 can be connected to the inner wall of the housing 10, thereby further improving the installation stability of the mounting frame 20 within the housing 10.

[0044] For example, such as Figure 3 As shown, this application takes the connection between the second mounting plate 212 and the inner wall of the housing 10 as an example. Bending plates can be provided at both ends of the second mounting plate 212 along the first direction X, and the bending plates are in close contact with the inner wall of the housing 10. Then, by drilling holes in the bending plates and the side wall of the housing 10, and using fasteners (such as bolts, screws, etc.), the second mounting plate 212 is fixedly installed on the side wall of the housing 10, thereby fixing the mounting frame 20 formed by the two first mounting plates 211 and the two second mounting plates 212 inside the housing 10.

[0045] In this embodiment, as Figure 2 , Figure 3 As shown, multiple perforations 2111 can be provided through the first mounting plate 211, which can achieve weight reduction and improve heat dissipation efficiency. Specifically, by setting multiple perforations 2111 on the first mounting plate 211, the amount of material used can be significantly reduced, thereby achieving a weight reduction effect. However, it should be noted that the setting of the perforations 2111 must ensure that the structural strength of the first mounting plate 211 is not affected and can provide stable support. By setting multiple perforations 2111 on the first mounting plate 211, the heat in the mounting space 21 can be quickly dissipated to the outside through the perforations 2111, which can significantly improve the heat dissipation effect, especially in the absence of active heat dissipation equipment.

[0046] Understandably, the perforations 2111 should be evenly distributed on the first mounting plate 211 to ensure that heat can be dissipated evenly. Specifically, the location of the perforations 2111 can be selected according to the installation position of the plug-in module 40 in the installation space 21 to ensure that the position of the perforations 2111 corresponds to the position of the plug-in module 40. The shape of the perforations 2111 can be designed as circular, elliptical, or square, etc., and the specific shape can be selected according to the processing technology and heat dissipation requirements. At the same time, the size of the perforations 2111 should be optimized according to the heat dissipation requirements and structural strength to ensure the best heat dissipation effect and structural stability.

[0047] In some embodiments, multiple holes may be provided through the second mounting plate 212, and the arrangement method is the same as that of the through holes 2111 on the first mounting plate 211. No further description or explanation will be given here.

[0048] Reference Figure 3 As shown, in one embodiment of this application, in the first direction X, at least one of the two first mounting plates 211 and the inner wall of the corresponding housing 10 are spaced apart to form a first sub-cavity 51 between the first mounting plate 211 and the inner wall of the housing 10; thereby, sound insulation material can be provided in the first sub-cavity 51 to achieve noise reduction; or an expansion joint can be provided in the first sub-cavity 51 to facilitate future upgrades and expansions, making it easy to add new functions without replacing the entire device; or a heat sink (fan) can be provided in the first sub-cavity 51 to meet the heat dissipation requirements of the relay protection device 100 when operating in outdoor substations or high-temperature industrial environments.

[0049] In some embodiments, such as Figure 3 As shown, in the second direction, at least one of the two second mounting plates 212 is spaced apart from the inner wall of the corresponding housing 10, so that a second sub-cavity 52 is formed between the second mounting plate 212 and the inner wall of the housing 10; thereby, sound insulation materials, expansion joints or heat dissipation components can be provided in the second sub-cavity 52.

[0050] In other embodiments, the two first mounting plates 211 and the inner wall of the housing 10 can be spaced apart, and the two second mounting plates 212 and the inner wall of the housing 10 can be spaced apart, so that two first sub-cavities 51 are formed at both ends along the first direction X and two second sub-cavities 52 are formed at both ends along the second direction Y inside the housing 10. This allows sound insulation material to be provided in both the first sub-cavities 51 and the second sub-cavities 52 to improve the sound insulation and noise reduction effect of the relay protection device 100. Alternatively, more space can be provided for more expansion joints to better meet future upgrade requirements of the relay protection device 100. Alternatively, heat dissipation components can be provided inside the housing 10 and in all directions around the mounting frame 20 to further improve heat dissipation and ensure the stability of the relay protection device 100 under high-temperature operating conditions.

[0051] It should be noted that corresponding heat dissipation holes 111 also need to be provided on the side wall of the enclosure 10 to transfer and dissipate heat outwards; for example, such as Figure 1 , Figure 2 As shown, heat dissipation holes 111 can be provided on both sides of the housing 10 along the first direction X, and the heat dissipation holes 111 are connected to the first sub-cavity 51 located in the housing 10. The heat generated by the plug-in module 40 when it is working is first transferred to the first sub-cavity 51, and then dissipated outward through the heat dissipation holes 111 provided on the side wall of the housing 10.

[0052] In this embodiment, the first sub-cavity 51 and the second sub-cavity 52 constitute the cavity 50 in the above embodiment. When designing and manufacturing the relay protection device 100, corresponding components can be flexibly set in the cavity 50 according to its working environment and usage requirements to improve the adaptability and functionality of the relay protection device 100.

[0053] Reference Figure 2 , Figure 3 As shown, in one embodiment of this application, the first mounting plate 211 has a plurality of support plates 2211 arranged at intervals along the second direction Z on the side facing the mounting space 21. That is, one of the first mounting plates 211 has a plurality of support plates 2211a arranged at intervals along the second direction Z on the side facing the mounting space 21, and the other first mounting plate 211 has a plurality of support plates 2211b arranged at intervals along the second direction Z on the side facing the mounting space 21. The support plates 2211 on both first mounting plates 211 extend along the third direction Y. In the first direction X, the support plates 2211 on both first mounting plates 211 are correspondingly arranged. That is, in the first direction X, the support plates 2211a and 2211b installed on the two first mounting plates 211 and corresponding in position have the same height in the second direction Z.

[0054] It is understandable that when the plug-in module 40 enters the installation space 21 through the socket 131, the bottom ends of the plug-in module 40 at opposite ends along the first direction X respectively abut against the corresponding support plates 2211, thereby supporting the plug-in module 40 and enabling the plug-in module 40 to be installed in the installation space 21. It should be noted that the distance between the two first mounting plates 211 along the first direction X should be consistent with the size of the plug-in module 40 to be installed along the first direction X. This ensures that when the plug-in module 40 is installed in the installation space 21, it can move along a preset path within the installation space 21 under the coordinated constraint of the two first mounting plates 211 and the corresponding support plates 2211, and when it moves to the preset position, the plug-in module 40 can achieve a precise connection with the circuit board 30 through the first connector 60.

[0055] In some embodiments, such as Figure 3 As shown, in the first direction X, the support plates 2211a and 2211b, which are positioned correspondingly on the two first mounting plates 211, constitute support members 221. In the second direction Z, two adjacent support members 221 constitute the guide portion 22 in the above embodiment. That is, in the second direction Z, the space enclosed between two adjacent support members 221 forms a subspace for placing a single plug-in module 40, and the mounting space 21 includes multiple such subspaces to realize the installation of multiple plug-in modules 40.

[0056] Understandably, in order to achieve a more precise guiding effect for the plug-in module 40, the distance between two adjacent support members 221 in the second direction Z should be consistent with or slightly greater than the thickness of the plug-in module 40 (so that the plug-in module 40 can move smoothly between the two support members 221). In the second direction Z, the cooperation of the two adjacent support members 221 can ensure that the plug-in module 40 accurately reaches the preset position within the installation space 21, realizing the precise connection of the plug-in module 40 to the circuit board 30 via the first connector 60. This reduces the possibility that the plug-in module 40 cannot be connected to the circuit board 30 via the first connector 60 due to inaccurate guidance.

[0057] The specific installation process is as follows: First, the plug-in module 40 is placed in the installation space 21 from the socket 131, so that the bottom of the plug-in module 40 and the two opposite ends along the first direction X respectively abut against the corresponding support plate 2211. Then, the plug-in module 40 is driven to move along the preset path to the preset position under the guidance of the two adjacent support pieces 221. After the plug-in module 40 reaches the preset position, it achieves a precise connection with the circuit board 30 through the first plug-in piece 60.

[0058] In some embodiments, the support plate 2211 and the first mounting plate 211 can be connected using fasteners (bolts, screws, etc.), for example, such as Figure 3 As shown, a mounting hole is provided through the first mounting plate 211, and a mounting hole (an internally threaded hole) is also provided on one side of the support plate 2211 along the first direction X. The support plate 2211 is thus fixedly mounted on the first mounting plate 211 by fasteners. It should be noted that when a through hole 2111 is provided through the first mounting plate 211, the mounting position of the support plate 2211 and the through hole 2111 should be staggered. That is, on the same first mounting plate 211, the through hole 2111 on the first mounting plate 211 is located between two adjacent support plates 2211, so that the through hole 2111 can be opposite to the position of the plug-in module 40 to achieve better heat dissipation.

[0059] In some embodiments, a plurality of plates arranged at intervals along the second direction Z may be provided between the two first mounting plates 211, and each plate extends to both ends along the first direction X to abut against and connect with the first mounting plates 211 located on both sides, thereby achieving the same effect of supporting and guiding the plug-in module 40; however, compared with providing support plates 2211 on the two first mounting plates 211 respectively, it will lead to increased material consumption and increase the overall weight of the relay protection device 100; moreover, in the second direction Z, the space between two adjacent plug-in modules 40 is completely filled by plates, reducing the space for air circulation and hindering heat dissipation.

[0060] Preferably, in this application, a support plate 2211 is provided on each of the two first mounting plates 211, and the support plate 2211 extends a certain length toward the mounting space 21 in the first direction X, as long as it can support the plug-in module 40.

[0061] Reference Figure 5 , Figure 6 , Figure 9 As shown, in one embodiment of this application, the first connector 60 includes a plug terminal 61 and a socket terminal 62, wherein the plug terminal 61 is disposed on one of the plug module 40 and the circuit board 30, and the socket terminal 62 is disposed on the other of the plug module 40 and the circuit board 30; this embodiment is described and illustrated by taking the example of the plug terminal 61 being disposed on the plug module 40 and the socket terminal 62 being disposed on the circuit board 30.

[0062] like Figure 6As shown, a plug terminal 61 is provided on one side of the plug module 40 along the Y direction. A socket terminal 62 is provided on the circuit board 30 at a corresponding position to be inserted and mated with the plug terminal 61. When the plug module 40 is placed into the installation space 21 through the socket 131 and driven to move towards the circuit board 30 along a preset path under the guidance of the guide part 22, the plug terminal 61 installed on the plug module 40 and the socket terminal 62 on the circuit board 30 continuously approach each other, so that the plug module 40 moves to a preset position, and the pin on the plug terminal 61 is inserted into the socket hole on the socket terminal 62. Thus, the plug connection between the plug module 40 and the circuit board 30 is realized through the first plug-in member 60 formed by the plug terminal 61 and the socket terminal 62.

[0063] In this embodiment, the first connector 60 is used to connect the plug-in module 40 and the circuit board 30. Compared with the traditional method of connecting with wire harness, this method significantly improves installation efficiency and reduces problems caused by wiring errors. Whether it is installation, debugging, inspection, or maintenance, the plug-in module 40 and the circuit board 30 can be quickly connected and disconnected, which significantly improves work efficiency.

[0064] In this embodiment, as Figure 5 , Figure 6 As shown, the relay protection device 100 in this application can accommodate multiple plug-in modules 40. Each plug-in module 40 and the circuit board 30 are provided with a first connector 60. The size and setting position of the multiple first connectors 60 used to connect the plug-in modules 40 and the circuit board 30 are different, thereby ensuring that each plug-in module 40 can only be placed into the installation space 21 through its corresponding socket 131 and connected to the socket terminal 62 on the circuit board 30. This effectively prevents problems caused by incorrect installation of the plug-in module 40 and has a foolproof effect.

[0065] In some embodiments, such as Figure 4 , Figure 5 As shown, a support plate 31 is provided between the circuit board 30 and the mounting frame 20, and the circuit board 30 is mounted on the side of the support plate 31 away from the mounting frame 20 (the support plate 31 has holes extending through it along its thickness direction for the socket terminal 62 to pass through, so that the plug terminal 61 on the plug module 40 can be plugged into the socket terminal 62). This significantly improves the protection performance of the circuit board 30 and avoids damage to the circuit board 30 when the plug module 40 is plugged into it; for example Figure 4As shown, a bent plate is integrally provided on each of the opposite sides of the bearing plate 31 along the first direction X, and the bent plate and the first plate 11 constituting the box 10 are in close contact (the bent plate is provided with a through hole, and the first plate 11 is provided with a threaded hole). Thus, the bearing plate 31 is fixedly installed in the box 10 by fasteners (bolts, screws, etc.).

[0066] Understandably, the carrier plate 31 provides physical isolation for the circuit board 30, reducing the direct impact on the circuit board 30 during the insertion of the plug-in module 40; at the same time, the carrier plate 31 provides stable support for the circuit board 30, ensuring the stability of the circuit board 30 during installation and operation; for example, the circuit board 30 is fixed to the carrier plate 31 by fasteners (such as bolts, screws, etc.) to ensure the firmness of the connection.

[0067] Reference Figure 5 , Figure 6 As shown in one embodiment of this application, in order to achieve a better plug-in connection between the plug terminal 61 and the socket terminal 62, a guide pin 621 is provided on the side of the socket terminal 62 facing the plug terminal 61, and a guide hole 611 is provided on the plug terminal 61 at a corresponding position to cooperate with the guide pin 621; or, a guide pin 621 is provided on the side of the plug terminal 61 facing the socket terminal 62, and a guide hole 611 is provided on the socket terminal 62 at a corresponding position to cooperate with the guide pin 621; or, simultaneously, a guide pin 621 is provided on the side of the socket terminal 62 facing the plug terminal 61, and a guide hole 611 is provided on the plug terminal 61 at a corresponding position to cooperate with the guide pin 621, and a guide pin 621 is provided on the side of the plug terminal 61 facing the socket terminal 62, and a guide hole 611 is provided on the socket terminal 62 at a corresponding position to cooperate with the guide pin 621; thereby, through the guiding cooperation of the guide pin 621 and the guide hole 611, the plug terminal 61 and the socket terminal 62 can be guided to achieve a better plug-in connection.

[0068] In some embodiments, the end of the guide pin 621 facing the corresponding guide hole 611 can be set as a tapered surface. The tapered surface design can further improve the insertion accuracy and reliability between the plug terminal 61 and the socket terminal 62. Specifically, the tapered surface at the end of the guide pin 621 facing the guide hole 611 can automatically guide the plug terminal 61 and the socket terminal 62 to align. Even if there is a certain deviation during the insertion process, the tapered surface can ensure that the plug terminal 61 and the socket terminal 62 can be smoothly aligned and inserted. This design can effectively reduce poor contact or damage caused by inaccurate insertion and improve the reliability and stability of the system.

[0069] Understandably, setting a tapered surface at the end of the guide pin 621 facing the guide hole 611 can not only improve the accuracy and reliability of the insertion, but also effectively reduce the insertion failure caused by insufficient installation accuracy of the guide part 22. The tapered surface design has a certain fault tolerance. Even if there is a certain deviation in the installation accuracy of the guide part 22, the tapered surface can still guide the plug terminal 61 and the socket terminal 62 to be accurately inserted, reducing the strict requirements for installation accuracy, making the installation process simpler and faster, and reducing installation costs.

[0070] In other embodiments, tapered surfaces can be designed on both the guide pin 621 and the guide hole 611. That is, the end of the guide pin 621 facing the guide hole 611 is set as a tapered surface, and the entrance position of the guide hole 611 facing the guide pin 621 is also set as a tapered surface, so as to achieve bidirectional precise guidance. This bidirectional tapered surface design can further improve the accuracy and reliability of the insertion and ensure the precise connection between the plug terminal 61 and the socket terminal 62.

[0071] Reference Figure 2 , Figure 7 As shown, in one embodiment of this application, the box 10 includes two first plates 11, two second plates 12, and two third plates 13; wherein, the two first plates 11 are arranged at intervals along a first direction X, the two second plates 12 are arranged at intervals along a second direction Z, and the two third plates 13 are arranged at intervals along a third direction Y. The opposite ends of the first plates 11 along the second direction are respectively connected to the second plates 12, and the opposite ends of the first plates 11 along the third direction are respectively connected to the third plates 13. Thus, the box 10 structure is formed by the two first plates 11, the two second plates 12, and the two third plates 13 that cooperate with each other.

[0072] In some embodiments, the two ends of the first plate 11 along the second direction Z and the second plate 12, as well as the two ends of the first plate 11 along the third direction Y and the third plate 13, can all be connected by fasteners (bolts, screws, etc.). In order to improve the connection strength between the plates, a right-angle connector can be provided at the connection between the first plate 11 and the third plate 13, such that one side of the right-angle connector is in contact with the first plate 11 and the other side of the right-angle connector is in contact with the third plate 13. Then, the two sides of the right-angle connector are connected to the first plate 11 and the third plate 13 respectively by fasteners, thereby increasing the connection area between the first plate 11 and the third plate 13, which helps to improve the connection strength.

[0073] Similarly, the connection method between the first plate 11 and the second plate 12 can also refer to the connection method described above, and will not be described or explained in detail here.

[0074] In this embodiment, as Figure 2 As shown, the socket 131 is formed on one of the third boards 13, that is, multiple sockets 131 are formed on the third board 13 in the third direction Y, away from the end of the circuit board 30, so that the plug-in module 40 can enter the installation space 21 from the outside.

[0075] In some embodiments, the housing of the plug-in module 40 is also formed by the connection and enclosure of multiple plates, such as Figure 6 As shown, in the third direction Y, the board component on the side of the plug module 40 away from the circuit board 30 protrudes from both sides of the plug module 40 body along the first direction X, that is, the side length of the plug module 40 away from the plug terminal 61 is longer than the length of the plug module 40 body; as Figure 2 As shown, grooves are provided on the third plate 13 at both sides of the socket 131 along the first direction X. In the third direction Y, the grooves do not penetrate the third plate 13. When the plug-in module 40 is moved to a preset position within the installation space 21, and the plug-in module 40 and the circuit board 30 are connected via the first connector 60, the two ends of the longer side of the plug-in module 40 away from the plug terminal 61 respectively enter the grooves (e.g., ...). Figure 1 , Figure 4 As shown); by providing holes at both ends of the longer side of the plug module 40 away from the plug terminal 61 and threaded holes in the groove, fasteners can be sequentially inserted into the holes and threaded holes to fix the plug module 40 to the housing 10, ensuring the installation stability of the plug module 40, preventing the plug module 40 from loosening due to external force or vibration, and improving the safety of the system.

[0076] For example, the fastener can be a hand screw 90, which does not require the use of tools and can quickly fix and disassemble the plug-in module 40, significantly shortening the installation and maintenance time. Maintenance personnel can easily tighten or loosen the screw, facilitating quick replacement or repair of the plug-in module 40.

[0077] In this embodiment, the housing 10 (including the first plate 11, the second plate 12, and the third plate 13) and the outer shell of the plug-in module 40 are both made of aluminum alloy. Aluminum alloy has a low density, which can significantly reduce the weight of the housing 10 and the plug-in module 40, making it easy to handle and install. The lightweight design makes the device more portable and suitable for scenarios that require frequent movement or installation on mobile devices. At the same time, aluminum alloy has high strength and good mechanical properties, which can withstand large external forces and vibrations, ensuring the stability of the relay protection device 100.

[0078] Understandably, the housing of plug-in module 40 is made of aluminum alloy. The aluminum alloy housing can reduce electromagnetic wave leakage and reduce the electromagnetic radiation of the device to the surrounding environment. This can effectively reduce electromagnetic interference between plug-in modules 40 and improve the electromagnetic compatibility of the system.

[0079] In some embodiments, such as Figure 1 As shown, a handrail 132 is provided on the third plate 13 with a socket 131 and on opposite sides along the first direction X, so that the operator can hold the handrail 132 for carrying and transferring the relay protection device 100; or the handrail 132 may be provided at a suitable position on other plates.

[0080] Reference Figure 7 As shown, in one embodiment of this application, the second plate 12 includes a first sub-plate 121 and two second sub-plates 122; wherein, the two second sub-plates 122 are respectively connected to opposite ends of the first sub-plate 121 along the first direction X, and the second sub-plates 122 and the first sub-plate 121 are perpendicularly connected, and the second sub-plates 122 extend toward the first plate 11, that is, the overall shape of the second plate 12 is U-shaped (e.g., Figure 7 As shown); in the first direction X, the first plate 11 has a first wall 113 facing away from the mounting frame 20, and in the second direction Z, at least partially, the opposite ends of the first wall 113 are attached to the corresponding second sub-plate 122 (as shown). Figure 2 (as shown). This can increase the contact area at the connection between the second plate 12 and the first plate 11, and the structural strength of the box 10 can be significantly improved through the overlapping fit between the two second sub-plates 122 and the first plate 11; wherein, the first sub-plate 121 and the two second sub-plates 122 are integrally formed.

[0081] In this embodiment, since there is a large overlap area between the second plate 12 and the first plate 11, forming a long sealing path, electromagnetic wave signals can hardly pass through the aluminum alloy housing 10. Therefore, the electromagnetic waves inside the housing 10 can only leak and diffuse outward along the gap between the plates. The long sealing path formed between the second plate 12 and the first plate 11 makes it difficult for electromagnetic wave signals to pass through, thereby reducing the leakage of electromagnetic waves outward and improving the electromagnetic shielding effect.

[0082] In some embodiments, to ensure that the appearance of the housing 10 maintains a good flatness, such as Figure 7 , Figure 8 As shown, receiving grooves 112 for accommodating the second sub-plate 122 can be provided at both ends of the first wall 113 along the second direction Z and in the overlapping area of ​​the second sub-plate 122. The dimensions of the receiving grooves 112 should be consistent with the dimensions of the second sub-plate 122. Figure 2As shown, when the first plate 11 and the second plate 12 are connected, the second sub-plate 122 can be placed completely inside the receiving groove 112, and the side of the second sub-plate 122 away from the mounting frame 20 and the area on the first wall 113 where the receiving groove 112 is not provided are kept flush, so that the appearance of the box 10 has a better flatness.

[0083] In some embodiments, the length of the second sub-plate 122 along the third direction Y can be consistent with the length of the first sub-plate 121. Therefore, the length of the receiving groove 112 along the third direction Y should also be consistent with the length of the second sub-plate 122, that is, it needs to penetrate both sides of the first wall 113 along the third direction Y (e.g., ...). Figure 7 (As shown).

[0084] In another embodiment, the length of the second sub-plate 122 along the third direction Y can also be smaller than the length of the first sub-plate 121 along the third direction Y. Then the size of the receiving groove 112 along the third direction Y should also be consistent with the length of the second sub-plate 122.

[0085] Reference Figures 1-3 As shown in one embodiment of this application, the relay protection device 100 further includes a power module 70. The power module 70 is disposed in the installation space 21, and the power module 70 and the circuit board 30 are connected via a second connector 80. Thus, the power module 70 provides a stable voltage and a stable current to the relay protection device 100, meeting the power requirements of each plug-in module 40 inside the relay protection device 100. The power module 70 is connected to the circuit board 30 via the second connector 80, which can precisely control the power output and ensure that each module on the circuit board 30 can obtain appropriate power under different working conditions.

[0086] In this embodiment, the power module 70 is integrated into the installation space 21, which reduces the complexity of external connections and improves the overall integration of the device. At the same time, internal integration reduces the contact between the power module 70 and the external environment, reduces the risk of failure caused by external interference, and improves the reliability of the system.

[0087] In this embodiment, the power module 70 and the circuit board 30 are connected by a second connector 80, which makes the connection process between the power module 70 and the circuit board 30 quick and simple, reducing installation time. When the power module 70 needs to be maintained or replaced, it can be quickly unplugged and plugged in, reducing maintenance time and cost.

[0088] like Figure 2As shown, the third plate 13 is provided with a socket 131 for inserting the power module 70, and a third mounting plate 23 is installed in the mounting space 21 near the bottom (the third mounting plate 23 and the second plate 12 located at the bottom of the housing 10 are fixedly connected by fasteners). The third mounting plate 23 and one of the first mounting plates 211 enclose a space for accommodating the power module 70. A support plate 2211 is provided on the side of the third mounting plate 23 away from the power module 70 for supporting the plug-in module 40.

[0089] It is understandable that due to the encroachment of the power module 70, the area in the installation space 21 corresponding to the power module 70 can only install some relatively small plug-in modules 40. In this application, the installation space 21 can be reasonably partitioned according to the functions of different plug-in modules 40 to ensure that each module can find the optimal installation position.

[0090] In some embodiments, the power module 70 is also fixedly mounted on the third plate 13 using a hand-tightening screw 90, thereby achieving installation stability of the power module 70, preventing the plug-in module 40 from loosening due to external force or vibration, and improving the safety of the system; the specific setting method is the same as the fixing method of the plug-in module 40, and will not be described or explained in detail here.

[0091] In this embodiment, the structure of the second connector 80 is consistent with that of the first connector 60, and its specific structure will not be described or explained here.

[0092] In this embodiment, all plug-in modules 40 and the housing 10 are standardized in size, which can achieve seamless installation and replacement of old and new modules, reduce maintenance time and cost, and improve system availability; moreover, the standardized design reduces installation errors caused by module incompatibility and improves system reliability.

[0093] In this embodiment, the enclosure 10 is an 8U enclosure, meaning that the height of the enclosure 10 is 8 rack units. This type of enclosure 100 is typically designed to accommodate multiple 1U high plug-in modules 40, which is suitable for applications requiring high-density installation. Here, 1U means that the height of each plug-in module 40 is 1 rack unit, i.e., 1.75 inches. Of course, the enclosure 10 can also be set to have the required number of rack units according to actual usage requirements.

[0094] The above are merely exemplary embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A relay protection device, characterized in that, The relay protection device includes: Box; An installation frame is disposed inside the box, and an installation space is formed on the inner side of the installation frame. One side of the box has multiple ports that connect to the outside and the installation space. The installation space has guide parts corresponding to the positions of the ports. Circuit board, disposed within the enclosure; and A plug-in module is disposed within the installation space. The circuit board and the plug-in module are located on opposite sides of the housing. The plug-in module can move along the guide portion within the installation space to a preset position so that the plug-in module and the circuit board are connected via a first connector.

2. The relay protection device as described in claim 1, characterized in that, At least one side of the mounting frame is spaced apart from the inner wall of the box to form a cavity between the mounting frame and the inner wall of the box; The cavity is provided with sound insulation material; and / or, the cavity is provided with an expansion joint; and / or, the cavity is provided with a heat dissipation component.

3. The relay protection device as described in claim 2, characterized in that, The installation framework includes: Two first mounting plates are spaced apart along a first direction; and Two second mounting plates are arranged at intervals along a second direction, and two first mounting plates are disposed between the two second mounting plates. In the second direction, the opposite ends of the first mounting plates are respectively connected to the second mounting plates to form the mounting space between the two first mounting plates and the two second mounting plates. The guide portion is disposed on one side of the two first mounting plates facing the mounting space. There are multiple plug-in modules, and the multiple plug-in modules are arranged sequentially along the second direction in the mounting space. The first mounting plate and / or the second mounting plate are fixedly connected to the housing, and the first direction and the second direction are perpendicular to each other.

4. The relay protection device as described in claim 3, characterized in that, In the first direction, at least one of the two first mounting plates is spaced apart from the inner wall of the corresponding housing to form a first sub-cavity between the first mounting plate and the inner wall of the housing; and / or In the second direction, at least one of the two second mounting plates is spaced apart from the inner wall of the corresponding housing to form a second sub-cavity between the second mounting plate and the inner wall of the housing; The first sub-cavity and / or the second sub-cavity constitute the cavity.

5. The relay protection device as described in claim 3, characterized in that, The first mounting plate has a plurality of support plates arranged at intervals along the second direction on the side facing the mounting space, and the support plates extend along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other; In the first direction, a plurality of support plates located on the two first mounting plates are correspondingly provided, and in the first direction, two corresponding support plates constitute a support member; In the second direction, two adjacent support members constitute the guide portion.

6. The relay protection device as described in claim 1, characterized in that, The first connector includes: A plug terminal is provided in one of the plug-in module and the circuit board; and A socket terminal is provided on the other of the plug-in module and the circuit board. The plug-in module moves from the socket into the installation space to a preset position, so that the plug terminal and the socket terminal can be plugged in and connected.

7. The relay protection device as described in claim 6, characterized in that, The socket terminal is provided with a guide pin on the side facing the plug terminal, and the plug terminal is provided with a guide hole at a corresponding position to cooperate with the guide pin; and / or The plug terminal is provided with a guide pin on the side facing the socket terminal, and the socket terminal is provided with a guide hole at a corresponding position that cooperates with the guide pin.

8. The relay protection device as described in any one of claims 1-7, characterized in that, The enclosure includes: Two first plates are arranged at intervals along a first direction; and Two second plates are arranged at intervals along a second direction, and the opposite ends of the first plate along the second direction are respectively connected to the second plates. Two third plates are arranged at intervals along a third direction, and the two ends of the first plate along the third direction are respectively connected to the third plates. The socket is formed on one of the third plates; the first direction, the second direction, and the third direction are perpendicular to each other.

9. The relay protection device as described in claim 8, characterized in that, The second plate includes: First board; and Two second sub-boards are respectively connected to the opposite ends of the first sub-board along the first direction, and the two second sub-boards are perpendicularly connected to the first sub-board, with the second sub-boards extending toward the first board. In the first direction, the first plate has a first wall facing away from the mounting frame, and in the second direction, the opposite ends of the first wall are respectively at least partially attached to the corresponding second sub-plate.

10. The relay protection device as described in any one of claims 1-7, characterized in that, The relay protection device also includes a power supply module, which is located within the installation space; The power module and the circuit board are connected via a second connector.

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