Power distribution cabinet battery module replacement device and replacement method

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet battery module replacement device and method, and the device comprises a box body, a first limiting assembly, a second limiting assembly, and a monitoring unit. The bottom plate, the first side plate and the second side plate are mutually enclosed to form a storage cavity for placing a battery module, a first sliding groove is formed in the first side plate, and a second sliding groove is formed in the second side plate; the first limiting assembly is arranged in the storage cavity, and the first limiting assembly reciprocates in the storage cavity and is used for limiting the displacement of the battery module; the second limiting assembly is arranged in the storage cavity, a third sliding groove is formed in the end, away from the first side plate, of the first limiting assembly, one end of the second limiting assembly is slidably connected with the third sliding groove, the other end of the second limiting assembly is slidably connected with the second sliding groove, and the second limiting assembly reciprocates in the storage cavity. The second limiting assembly is used for limiting the displacement of the battery module; the temperature control sensor is arranged on the transmission assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and in particular to a device and method for replacing a battery module of a distribution cabinet. Background Art

[0002] At the present stage, battery modules are equipped as backup power sources in 10kv distribution cabinet systems, and the equipment can still be powered briefly by the backup power source during power outages to complete necessary action instructions. However, the lifespan of the battery module gradually decays with the increase of usage time, and even the lifespan is significantly shortened due to high-temperature environments. Therefore, the battery module needs to be regularly inspected and replaced to ensure the normal operation of the equipment.

[0003] Currently, when the existing distribution cabinet system uses a battery module as a backup power source, there are the following deficiencies: 1. When the battery in the distribution cabinet system needs to be replaced and expanded, it is difficult for users to purchase batteries with the same size and model as those originally equipped by the factory, resulting in the inability to accommodate batteries of different specifications, sizes, models, and capacities in the distribution cabinet system, thereby affecting the working efficiency of the distribution cabinet; 2. The power outage time of the distribution cabinet system is limited, and it is also required to replace the battery quickly and accurately to reduce the difficulty and time of battery replacement; 3. The temperature on the outer surface of the battery cannot be detected, resulting in maintenance personnel being unable to replace faulty batteries in a timely manner, posing a certain risk to the safe operation of the distribution cabinet system. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that in the prior art, the distribution cabinet system cannot accommodate batteries of different specifications, the difficulty of replacing batteries is relatively large, the time consumption is relatively long, and the temperature on the outer surface of the battery cannot be monitored.

[0005] In order to solve the above technical problems, the present invention provides a battery module replacement device for a distribution cabinet, which includes a box body, a first limit assembly, a second limit assembly and a monitoring unit; the box body includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are respectively arranged at both ends of the bottom plate along the Z direction, and the bottom plate, the first side plate and the second side plate are mutually enclosed to form a storage cavity for placing the battery module, the first side plate is provided with a first slide groove extending along the X direction, and the second side plate is provided with a second slide groove extending along the Y direction; the first limit assembly is arranged in the storage cavity, one end of the first limit assembly close to the first side plate is slidably connected to the first slide groove, and the first limit assembly reciprocates along the X direction in the storage cavity to limit the battery module in the X direction. displacement; the second limit assembly is arranged inside the storage cavity, and a third slide groove extending along the Y direction is arranged on the end of the first limit assembly away from the first side plate, and the end of the second limit assembly close to the first limit assembly is slidably connected with the third slide groove, and the end of the second limit assembly close to the second side plate is slidably connected with the second slide groove, the second limit assembly reciprocates along the Y direction in the storage cavity, and the second limit assembly is used to limit the displacement of the battery module in the Y direction; the monitoring unit is arranged above the storage cavity, the monitoring unit includes a transmission assembly and a temperature control sensor, the transmission assembly is arranged in the storage cavity, the transmission assembly reciprocates along the Z direction to limit the displacement of the battery module in the Z direction, and the temperature control sensor is arranged on the transmission assembly to monitor the temperature of the battery module.

[0006] Furthermore, the battery module includes an output terminal connector and an input terminal connector for transmitting electrical energy to the power distribution cabinet.

[0007] In one embodiment, the first limiting assembly includes a first baffle and a first fastener, wherein one end of the first baffle close to the first side plate is inserted into the first slide groove, and the first fastener is arranged at the connection between the first baffle and the first slide groove for fixing the first baffle.

[0008] In one embodiment, the second limiting assembly includes a second baffle and a second fastener, the second baffle is inserted into the third slide groove, and the second fastener is arranged at one end of the second baffle close to the first baffle for fixing the second baffle.

[0009] In one embodiment, the second stop assembly includes a third baffle and a third fastener, the end of the third baffle close to the second side plate is inserted into the second slide slot, and the third fastener is arranged at the connection between the third baffle and the second slide slot to fix the third baffle. The number of the first slide slot, the second slide slot and the third slide slot are all multiple, and are arranged at intervals along the Z direction.

[0010] In one embodiment, the transmission assembly includes a first sliding plate disposed on the side of the second baffle away from the storage cavity along the Z direction. The first sliding plate includes a first plate body, a second plate body, a fourth fastener, and a fifth fastener. The first plate body is provided with a fourth sliding groove penetrating the first plate body. The fourth fastener is disposed between the first plate body and the second baffle and inserted into the fourth sliding groove. The fourth fastener is used to fix the relative position between the first plate body and the second baffle along the Z direction. The second plate body is disposed above the first plate body. The second plate body is provided with a fifth sliding groove penetrating the second plate body. The fifth fastener is disposed between the first plate body and the second plate body and inserted into the fifth sliding groove. The fifth fastener is used to fix the relative position between the first plate body and the second plate body along the Z direction. And a temperature control sensor is connected to the top of the second plate body.

[0011] In one embodiment, the transmission assembly includes a second sliding plate disposed on the side of the third baffle away from the storage cavity along the Z direction.

[0012] In one embodiment, the transmission assembly includes a third sliding plate disposed on the side of the first side plate away from the storage cavity along the Z direction. The number of the third sliding plates is multiple. The multiple third sliding plates are spaced along the X direction. And the first sliding plate, the second sliding plate, and the third sliding plate have the same structure.

[0013] In one embodiment, a handle member is further disposed at one end of the bottom plate. The handle member is used to facilitate maintenance personnel to move the battery module. And a connection hole for connecting to the power distribution cabinet is disposed at the bottom of the handle member.

[0014] In one embodiment, the power distribution cabinet battery module replacement device further includes a temperature measurement antenna disposed outside the storage cavity. And the temperature measurement antenna is electrically connected to the temperature control sensor. The temperature measurement antenna is used to obtain the temperature data of the battery module monitored by the temperature control sensor in real time and send the battery temperature data to the background system for issuing an alarm and guiding maintenance personnel to perform inspection and replacement.

[0015] Further, the temperature control sensor is an RFID passive wireless temperature measurement sensor.

[0016] Further, the first fastener, the second fastener, the third fastener, the fourth fastener, and the fifth fastener are stepped bolts or fastening bolts and fastening nuts.

[0017] In one embodiment, the present invention also proposes a replacement method using the above-mentioned power distribution cabinet battery module replacement device. The steps include:

[0018] Step S1: Arrange sliding rails in the battery compartment of the power distribution cabinet and install a positioning and fixing frame on the sliding rails.

[0019] Step S2: Take out the battery module to be replaced in the battery module replacement device for the power distribution cabinet, and place the new battery module in the battery module replacement device for the power distribution cabinet;

[0020] Step S3: After the new battery module is fixed, align the connection holes in the battery module replacement device for the power distribution cabinet with the positioning holes of the positioning and fixing frame, and install fixing bolts between the connection holes and the positioning blocks;

[0021] Step S4: After the fixing bolts are installed, push the battery module replacement device for the power distribution cabinet into the battery compartment of the power distribution cabinet along the length direction of the sliding guide rail.

[0022] Compared with the prior art, the battery module replacement device and replacement method for the power distribution cabinet in the embodiment of the present invention have the following beneficial effects: The bottom plate, the first side plate and the second side plate form the basic framework of the storage cavity, providing a stable storage space for the battery module. The first side plate and the second side plate are respectively located at both ends of the bottom plate and are arranged along the Z direction, enhancing the structural strength of the box body; The first limiting component is connected to the first side plate through the first chute and reciprocates along the X direction, used to limit the displacement of the battery module in the X direction, so that the device can adjust the width of the storage space of the storage cavity according to the width of the battery module; The design of the second limiting component is more flexible. One end of it is connected to the first limiting component through the third chute, and the other end is connected to the second side plate through the second chute and reciprocates along the Y direction, used to limit the displacement of the battery module in the Y direction, so that the device can adjust the length of the storage space of the storage cavity according to the length of the battery module; The monitoring unit includes a transmission component and a temperature control sensor. The transmission component is arranged in the storage cavity and reciprocates along the Z direction, used to limit the displacement of the battery module in the Z direction, so that the device can timely adjust the storage space of the storage cavity according to the height of the battery module. This design of limiting displacement in three-dimensional directions enables the device to be compatible with battery modules of different specifications, models and capacities, effectively improving the applicable range of the device and the time for replacing the battery module. The temperature control sensor is integrated on the transmission component and is used to monitor the temperature of the battery module in real time, which is crucial for the health management and fault prevention of the battery module. At the same time, maintenance personnel can replace the battery module in time according to the temperature data of the outer surface of the battery module obtained by the temperature control sensor to ensure the stability of the operation of the power distribution cabinet. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the battery module replacement device for the power distribution cabinet in the embodiment of the present invention without a battery module installed.

[0024] Figure 2 is a schematic structural diagram of the battery module replacement device for the power distribution cabinet in the embodiment of the present invention with a battery module installed.

[0025] Figure 3It is a schematic structural diagram of the output terminal connector and the output terminal connector of the battery module replacement device in the embodiment of the present invention installed on the power distribution cabinet.

[0026] Figure 4 It is a schematic diagram of the disassembly of the monitoring unit in the battery module replacement device of the power distribution cabinet in the embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of step S1 of the replacement method in the embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of step S2 of the replacement method in the embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of step S3 of the replacement method in the embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of step S4 of the replacement method in the embodiment of the present invention.

[0031] In the figure, 1 is the box body; 11 is the bottom plate; 111 is the grip member; 12 is the first side plate; 121 is the first chute; 13 is the second side plate; 131 is the second chute;

[0032] 2 is the first limiting component; 21 is the first baffle; 22 is the third chute; 23 is the first fastener;

[0033] 3 is the second limiting component; 31 is the second baffle; 32 is the third baffle; 33 is the second fastener; 34 is the third fastener;

[0034] 4 is the monitoring unit; 41 is the transmission component; 42 is the first sliding plate; 421 is the first plate body; 422 is the fourth chute; 423 is the fourth fastener; 424 is the second plate body; 425 is the fifth chute; 426 is the fifth fastener; 43 is the second sliding plate; 44 is the third sliding plate; 45 is the temperature control sensor;

[0035] 5 is the battery module; 51 is the output terminal connector; 52 is the input terminal connector;

[0036] 6 is the temperature measurement antenna;

[0037] 7 is the power distribution cabinet; 71 is the sliding guide rail; 72 is the positioning and fixing frame. Detailed implementation manners

[0038] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0039] In the description of the present invention, it should be understood that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present invention is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "first" and "second" in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] Such as Figures 1 to 8As shown, an embodiment of the present invention preferably provides a battery module replacement device for a power distribution cabinet, which includes a box body 1, a first limiting component 2, a second limiting component 3 and a monitoring unit 4; the box body 1 includes a bottom plate 11, a first side plate 12 and a second side plate 13, the first side plate 12 and the second side plate 13 are respectively arranged at both ends of the bottom plate 11 along the Z direction, and the bottom plate 11, the first side plate 12 and the second side plate 13 are mutually enclosed to form a storage cavity for placing the battery module, the first side plate 12 is provided with a first slide groove 121 extending along the X direction, and the second side plate 13 is provided with a second slide groove 131 extending along the Y direction; the first limiting component 2 is arranged in the storage cavity, and one end of the first limiting component 2 close to the first side plate 12 is slidably connected to the first slide groove 121, and the first limiting component 2 reciprocates along the X direction in the storage cavity for limiting in the X direction The second limiting component 3 is arranged in the storage cavity, and a third slide groove 22 extending along the Y direction is arranged on the end of the first limiting component 2 away from the first side plate 12, and the end of the second limiting component 3 close to the first limiting component 2 is slidably connected with the third slide groove 22, and the end of the second limiting component 3 close to the second side plate 13 is slidably connected with the second slide groove 131, and the second limiting component 3 reciprocates along the Y direction in the storage cavity, and the second limiting component 3 is used to limit the displacement of the battery module in the Y direction; the monitoring unit 4 is arranged above the storage cavity, and the monitoring unit 4 includes a transmission component 41 and a temperature control sensor 45, the transmission component 41 is arranged in the storage cavity, and the transmission component 41 reciprocates along the Z direction to limit the displacement of the battery module in the Z direction, and the temperature control sensor 45 is arranged on the transmission component 41 to monitor the temperature of the battery module.

[0043] Based on the above technical features, in the embodiments of the present invention, the bottom plate 11, the first side plate 12, and the second side plate 13 form the basic framework of the storage cavity, providing a stable storage space for the battery module. The first side plate 12 and the second side plate 13 are respectively located at both ends of the bottom plate 11 and are arranged along the Z direction, enhancing the structural strength of the box body 1. The first limiting component 2 is connected to the first side plate 12 through the first sliding groove 121 and reciprocates along the X direction, and is used to limit the displacement of the battery module in the X direction, so that the device can adjust the width of the storage space of the storage cavity according to the width of the battery module. The design of the second limiting component 3 is more flexible. One end of it is connected to the first limiting component 2 through the third sliding groove 22, and the other end is connected to the second side plate 13 through the second sliding groove 131 and reciprocates along the Y direction, and is used to limit the displacement of the battery module in the Y direction, so that the device can adjust the length of the storage space of the storage cavity according to the length of the battery module. The monitoring unit 4 includes a transmission component 41 and a temperature control sensor 45. The transmission component 41 is arranged in the storage cavity and reciprocates along the Z direction, and is used to limit the displacement of the battery module in the Z direction, so that the device can timely adjust the storage space of the storage cavity according to the height of the battery module. This design of restricting displacement in three-dimensional directions enables the device to be compatible with battery modules of different specifications, models, and capacities, effectively improving the applicable range of the device and the time for replacing the battery module 5. The temperature control sensor 45 is integrated on the transmission component 41 and is used to monitor the temperature of the battery module in real time, which is crucial for the health management and fault prevention of the battery module. At the same time, maintenance personnel can replace the battery module in a timely manner according to the temperature data of the outer surface of the battery module obtained by the temperature control sensor 45 to ensure the stability of the operation of the power distribution cabinet.

[0044] Furthermore, the battery module includes an output terminal connector 51 and an input terminal connector 52 for transmitting electric energy to the power distribution cabinet. The battery module is connected to the input end of the power distribution cabinet through the output terminal connector 51 to form a complete electric energy supply chain. This connection method ensures that electric energy can be efficiently and stably transmitted from the battery module to the power distribution cabinet.

[0045] As some embodiments of the present invention, such as Figure 1 shown, the first limiting component 2 includes a first baffle 21 and a first fastener 23. One end of the first baffle 21 close to the first side plate 12 is inserted into the first sliding groove 121, and the first fastener 23 is arranged at the connection between the first baffle 21 and the first sliding groove 121 for fixing the first baffle 21. One end of the first baffle 21 is inserted into the first sliding groove 121 to ensure that the first baffle 21 can move or be positioned along the length direction of the first sliding groove 121. Then, the first fastener 23 is used to fix the baffle at the required position in the sliding groove. The fixed first baffle 21 effectively realizes the limitation of the battery module in the storage cavity in the X direction.

[0046] As some embodiments of the present invention, such asFigure 1 As shown, the second limiting component 3 includes a second baffle 31 and a second fastener 33. The second baffle 31 is inserted into the third chute 22, and the second fastener 33 is arranged at one end of the second baffle 31 close to the first baffle for fixing the second baffle 31. The second baffle 31 can limit the displacement of the battery module in the storage cavity in the Y direction, and the second fastener 33 is used to fix the second baffle 31 at a specific position in the third chute 22 to prevent the baffle from moving or falling off due to external force, thereby ensuring the stability of the limiting effect.

[0047] As some embodiments of the present invention, as Figure 1 shown, the second limiting component includes a third baffle 32 and a third fastener 34. One end of the third baffle 32 close to the second side plate 13 is inserted into the second chute 131, and the third fastener 34 is arranged at the connection between the third baffle 32 and the second chute 131 for fixing the third baffle 32. The number of the first chute 121, the second chute 131 and the third chute 22 is multiple, and they are arranged at intervals in the Z direction. The third baffle 32 is the main component in the second limiting component, which is used to contact and limit the movement of the battery module in the Y direction. The third fastener 34 is used to fix the third baffle 32 at a specific position in the second chute 131 to prevent the third baffle 32 from moving or falling off due to external force, thereby ensuring the stability of the limiting effect. At the same time, the design that the number of the first chute 121, the second chute 131 and the third chute 22 is multiple effectively ensures the stability of the first baffle 21, the second baffle 31 and the third baffle 32.

[0048] As some embodiments of the present invention, as Figures 1 to 4As shown, the transmission assembly 41 includes a first sliding plate 42. The first sliding plate 42 is arranged on the side of the second baffle 31 facing away from the storage cavity along the Z direction. The first sliding plate 42 includes a first plate body 421, a second plate body 424, a fourth fastener 423 and a fifth fastener 426. The first plate body 421 is provided with a fourth sliding groove 422 penetrating through the first plate body 421. The fourth fastener 423 is arranged between the first plate body 421 and the second baffle 31 and inserted into the fourth sliding groove 422. The fourth fastener 423 is used to fix the relative position between the first plate body 421 and the second baffle 31 along the Z direction. The second plate body 424 is arranged above the first plate body 421. The second plate body 424 is provided with a fifth sliding groove 425 penetrating through the second plate body 424. The fifth fastener 426 is arranged between the first plate body 421 and the second plate body 424 and inserted into the fifth sliding groove 425. The fifth fastener 426 is used to fix the relative position between the first plate body 421 and the second plate body 424 along the Z direction. And a temperature control sensor 45 is connected to the top of the second plate body 424. Through the design of the first plate body 421 and the second plate body 424, the first plate body 421 is fixed to the second baffle 31 by the fourth fastener 423, ensuring the stability of their relative position in the Z direction. The second plate body 424 is placed above the first plate body 421 and fixed to the first plate body 421 by the fifth fastener 426, also ensuring the stability of their relative position in the Z direction. In this way, the first sliding plate 42 forms a stable double-layer structure, which can slide or remain fixed along the Z direction. When it is necessary for the first sliding plate 42 to slide along the Z direction, the fasteners can be loosened to enable the first sliding plate 42 to move in the sliding groove. When positioning is required, the fasteners are tightened to fix the first sliding plate 42 at a specific position. At the same time, the temperature control sensor 45 on the top of the second plate body 424 is used to monitor the temperature of the battery module in real time.

[0049] As some embodiments of the present invention, as Figures 2 to 4 shown, the transmission assembly 41 includes a second sliding plate 43. The second sliding plate 43 is arranged on the side of the third baffle 32 facing away from the storage cavity along the Z direction. Through the design of the second sliding plate 43, it is further effectively ensured that the transmission assembly 41 has the function of limiting the battery module in the Z direction.

[0050] As some embodiments of the present invention, as Figures 2 to 4As shown, the transmission assembly 41 includes a third sliding plate 44, which is arranged on the side of the first side plate 12 away from the storage cavity along the Z direction. The number of the third sliding plates 44 is multiple, and the multiple third sliding plates 44 are arranged at intervals along the X direction, and the first sliding plate 42, the second sliding plate 43 and the third sliding plate 44 have the same structure. The third sliding plate 44 is arranged along the Z direction, which means that they can slide on the Z axis and provide the battery module with a limit function along the Z direction. The number of the third sliding plates 44 is multiple, which provides a more stable support and positioning effect, and at the same time enhances the bearing capacity and rigidity of the transmission assembly 41. The first sliding plate 42, the second sliding plate 43 and the third sliding plate 44 have the same structure, which means that they have similar first plate body 421, second plate body 424, fasteners and other components. This structural similarity helps to simplify the design and manufacturing process, reduce costs, and improve the reliability and maintainability of the transmission assembly 41. At the same time, it also makes the transmission assembly 41 easier to modularize and replace.

[0051] As some embodiments of the present invention, Figure 3 As shown, a handle 111 is also provided at one end of the bottom plate 11. The handle 111 is used to facilitate maintenance personnel to move the battery module, and a connection hole for connecting to the power distribution cabinet is provided at the bottom of the handle 111. The design of the handle 111 allows maintenance personnel to easily move the battery module, greatly reducing the difficulty and time of maintenance work. The design of the handle 111 and the connection hole makes the replacement process of the battery module 5 faster and more efficient, which helps to reduce the downtime of the power distribution cabinet and improve the reliability and availability of the system.

[0052] As some embodiments of the present invention, Figure 1 As shown, the battery module replacement device of the power distribution cabinet also includes a temperature measuring antenna 6, which is arranged on the outside of the storage cavity, and the temperature measuring antenna 6 is electrically connected to the temperature control sensor 45. The temperature measuring antenna 6 is used to obtain the temperature data obtained by the temperature control sensor 45 to monitor the battery module from time to time, and send the battery temperature data to the background system for issuing an alarm and guiding maintenance personnel to perform maintenance and replacement. The main function of the temperature measuring antenna 6 is to obtain the temperature data obtained by the temperature control sensor 45 to monitor the battery module from time to time. The temperature measuring antenna 6 sends the obtained battery temperature data to the background system. When the battery temperature exceeds the normal range, the background system will issue an alarm signal to remind maintenance personnel to conduct inspections and repairs in time. At the same time, the background system can also predict the life of the battery module 5 and possible failures based on the changing trend of the temperature data, and guide maintenance personnel to perform preventive maintenance and replacement.

[0053] Furthermore, the temperature control sensor 45 is an RFID passive wireless temperature sensor. The RFID passive wireless temperature sensor does not require external power supply and obtains energy from the radio frequency signal emitted by the reader through electromagnetic induction to achieve the acquisition and transmission of temperature data. This design reduces the power consumption of the sensor, extends its service life, and avoids maintenance problems caused by battery depletion.

[0054] Furthermore, the first fastener 23, the second fastener 33, the third fastener 34, the fourth fastener 423, and the fifth fastener 426 are stepped bolts or fastening bolts and nuts. Using stepped bolts or fastening bolts and nuts as fasteners can improve the structural strength and stability of the battery module replacement device for the power distribution cabinet. These fasteners have good corrosion resistance and wear resistance and can maintain the fastening force for a long time in a harsh environment. In addition, these fasteners are easy to purchase and replace, reducing the maintenance cost and workload.

[0055] As some embodiments of the present invention, as Figures 5 to 8 shown, the present invention also proposes a replacement method, which uses the above-mentioned battery module replacement device for the power distribution cabinet, and its steps include:

[0056] Step S1: Arrange the sliding guide rail 71 in the battery compartment of the power distribution cabinet 7 and install the positioning and fixing frame 72 on the sliding guide rail 71; the sliding guide rail 71 can bear the weight of the battery module replacement device for the power distribution cabinet, enabling it to slide and move smoothly in the battery compartment, facilitating the installation and removal of the battery module 5, improving work efficiency, and the positioning and fixing frame 72 can firmly fix the battery module replacement device for the power distribution cabinet to prevent it from shifting or vibrating during the movement.

[0057] Step S2: Take out the battery module to be replaced in the battery module replacement device for the power distribution cabinet and place the new battery module in the battery module replacement device for the power distribution cabinet; after the battery module is prefabricated, it can be directly taken to the site to replace the old battery box module in the battery module replacement device for the power distribution cabinet. At the same time, the old battery module is taken back for professional detection to determine whether the battery module can be reused or scrapped, reducing the limitations and working time of on-site battery detection and improving the efficiency and accuracy of the entire replacement, maintenance, and detection process.

[0058] Step S3: After the new battery module is fixed, align the connection holes in the battery module replacement device for the power distribution cabinet with the positioning holes of the positioning and fixing frame 72, and install fixing bolts between the connection holes and the positioning blocks; according to the sizes of the connection holes and the positioning blocks, select appropriate fixing bolts to ensure that the threads of the bolts match the threads of the connection holes and the positioning blocks, and the length of the bolts is appropriate to firmly connect the two.

[0059] Step S4: After the fixing bolts are installed, push the battery module replacement device for the power distribution cabinet along the length direction of the sliding guide rail 71 into the battery compartment of the power distribution cabinet 7; the maintenance personnel smoothly push the battery module replacement device for the power distribution cabinet along the length direction of the sliding guide rail 71 by hand or a pushing tool. After the battery module replacement device for the power distribution cabinet is completely pushed into the battery compartment of the power distribution cabinet 7, check whether it has reached the predetermined position.

[0060] In summary, compared with the prior art, the battery module replacement device and replacement method for the power distribution cabinet provided by the embodiment of the present invention have the following beneficial effects: The bottom plate 11, the first side plate 12, and the second side plate 13 form the basic framework of the storage cavity, providing a stable storage space for the battery module. The first side plate 12 and the second side plate 13 are respectively located at both ends of the bottom plate 11 and are arranged along the Z direction, enhancing the structural strength of the box body 1; the first limiting component 2 is connected to the first side plate 12 through the first chute 121 and reciprocates along the X direction, and is used to limit the displacement of the battery module in the X direction, so that the device can adjust the width of the storage space of the storage cavity according to the width of the battery module; the design of the second limiting component 3 is more flexible. One end of it is connected to the first limiting component 2 through the third chute 22, and the other end is connected to the second side plate 13 through the second chute 131 and reciprocates along the Y direction, and is used to limit the displacement of the battery module in the Y direction, so that the device can adjust the length of the storage space of the storage cavity according to the length of the battery module; the monitoring unit 4 includes a transmission component 41 and a temperature control sensor 45. The transmission component 41 is arranged in the storage cavity and reciprocates along the Z direction, and is used to limit the displacement of the battery module in the Z direction, so that the device can timely adjust the storage space of the storage cavity according to the height of the battery module. This design of limiting displacement in three-dimensional directions enables the device to be compatible with battery modules of different specifications, models, and capacities, effectively improving the applicable range of the device and the time for replacing the battery module 5. The temperature control sensor 45 is integrated on the transmission component 41 and is used to monitor the temperature of the battery module in real time, which is crucial for the health management and fault prevention of the battery module. At the same time, the maintenance personnel can replace the battery module in time according to the temperature data of the outer surface of the battery module obtained by the temperature control sensor 45 to ensure the stability of the operation of the power distribution cabinet.

[0061] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A battery module replacement device for a power distribution cabinet, used for installing battery modules, characterized in that, include: A box body, a first limit assembly, a second limit assembly and a monitoring unit; The box body includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are respectively arranged at two ends of the bottom plate along the Z direction, and the bottom plate, the first side plate and the second side plate are mutually enclosed to form a storage cavity for placing a battery module, the first side plate is provided with a first slide groove extending along the X direction, and the second side plate is provided with a second slide groove extending along the Y direction; The first limiting assembly is disposed inside the storage cavity, one end of the first limiting assembly close to the first side plate is slidably connected to the first sliding groove, and the first limiting assembly reciprocates along the X direction in the storage cavity to limit the displacement of the battery module in the X direction; The second limiting assembly is arranged inside the storage cavity, a third slide groove extending along the Y direction is arranged on one end of the first limiting assembly away from the first side plate, an end of the second limiting assembly close to the first limiting assembly is slidably connected to the third slide groove, an end of the second limiting assembly close to the second side plate is slidably connected to the second slide groove, the second limiting assembly reciprocates along the Y direction in the storage cavity, and the second limiting assembly is used to limit the displacement of the battery module in the Y direction; The monitoring unit is arranged above the storage cavity, and the monitoring unit includes a transmission assembly and a temperature control sensor. The transmission assembly is arranged inside the storage cavity, and the transmission assembly reciprocates along the Z direction to limit the displacement of the battery module in the Z direction, and the temperature control sensor is arranged on the transmission assembly to monitor the temperature of the battery module.

2. The battery module replacement device for the power distribution cabinet according to claim 1, wherein, The first limiting assembly includes a first baffle and a first fastener. One end of the first baffle close to the first side plate is inserted into the first slide groove, and the first fastener is arranged at the connection between the first baffle and the first slide groove to fix the first baffle.

3. The battery module replacement device for the power distribution cabinet according to claim 2, characterized in that, The second limiting assembly includes a second baffle and a second fastener. The second baffle is inserted into the third sliding groove. The second fastener is arranged at an end of the second baffle close to the first baffle for fixing the second baffle.

4. The battery module replacement device for the power distribution cabinet according to claim 3, wherein, The second limiting assembly includes a third baffle and a third fastener. The end of the third baffle close to the second side plate is inserted into the second slide groove, and the third fastener is arranged at the connection between the third baffle and the second slide groove to fix the third baffle. The number of the first slide groove, the second slide groove and the third slide groove are all multiple and are arranged at intervals along the Z direction.

5. The battery module replacement device for the power distribution cabinet according to claim 4, characterized in that, The transmission assembly includes a first sliding plate which is arranged on the side of the second baffle away from the storage cavity along the Z direction. The first sliding plate includes a first plate body, a second plate body, a fourth fastener and a fifth fastener. The first plate body is provided with a fourth chute penetrating the first plate body. The fourth fastener is arranged between the first plate body and the second baffle and inserted into the fourth chute. The fourth fastener is used to fix the relative position between the first plate body and the second baffle along the Z direction. The second plate body is arranged above the first plate body. The second plate body is provided with a fifth chute penetrating the second plate body. The fifth fastener is arranged between the first plate body and the second plate body and inserted into the fifth chute. The fifth fastener is used to fix the relative position between the first plate body and the second plate body along the Z direction, and a temperature control sensor is connected to the top of the second plate body.

6. The battery module replacement device for the power distribution cabinet according to claim 5, wherein The transmission assembly includes a second sliding plate which is arranged on the side of the third baffle away from the storage cavity along the Z direction.

7. The battery module replacement device for the power distribution cabinet according to claim 6, wherein, The transmission assembly includes a third sliding plate which is arranged on the side of the first side plate away from the storage cavity along the Z direction. The number of the third sliding plates is multiple, and the multiple third sliding plates are arranged at intervals along the X direction. The structures of the first sliding plate, the second sliding plate and the third sliding plate are the same.

8. The battery module replacement device for the power distribution cabinet according to claim 1, characterized in that, One end of the bottom plate is further provided with a handle part which is used to facilitate the maintenance personnel to move the battery module. A connection hole for connecting a power distribution cabinet is arranged at the bottom of the handle part.

9. The battery module replacement device for the power distribution cabinet according to claim 1, wherein, It further includes a temperature measurement antenna which is arranged outside the storage cavity. The temperature measurement antenna is electrically connected to the temperature control sensor. The temperature measurement antenna is used to obtain the temperature data monitored by the temperature control sensor for the battery module in real time, and send the battery temperature data to the background system for sending an alarm and guiding the maintenance personnel to carry out maintenance and replacement.

10. A replacement method, characterized in that, The replacement is carried out by using the power distribution cabinet battery module replacement device according to any one of claims 1-9. The steps include: Step S1: A sliding guide rail is arranged in the battery compartment of the power distribution cabinet, and a positioning and fixing frame is installed on the sliding guide rail. Step S2: The battery module to be replaced in the power distribution cabinet battery module replacement device is taken out, and a new battery module is placed in the power distribution cabinet battery module replacement device. Step S3: After the new battery module is fixed, the connection hole in the power distribution cabinet battery module replacement device is aligned with the positioning hole of the positioning and fixing frame, and a fixing bolt is installed between the connection hole and the positioning block. Step S4: After the fixing bolt is installed, the power distribution cabinet battery module replacement device is pushed into the battery compartment of the power distribution cabinet along the length direction of the sliding guide rail.

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