A modular box-type substation low-voltage compartment isolation device

Abstract

This utility model provides a modular box-type substation low-voltage compartment isolation device, belonging to the field of substation technology. It includes a low-voltage compartment body and a modular component, which is located inside the low-voltage compartment body. The modular component includes an isolation device shell disposed inside the low-voltage compartment body, with snap-fit ​​fasteners on both sides of the isolation device shell. A support plate is provided inside the low-voltage compartment body near the isolation device shell, and the isolation device shell is connected to the support plate via snap-fit ​​fasteners. A quick-installation component is also provided inside the modular component and is used for quick connection to busbars. By using the modular component, when the isolation device shell needs to be assembled, the support plate is snapped into the inside of the snap-fit ​​fasteners, and then the support plate is fixed inside the low-voltage compartment body, quickly completing the connection between the isolation device shell and the support plate. This modular assembly of the isolation device shell and the support plate helps improve the overall installation efficiency of the isolation device shell.

Description

Technical Field

[0001] This utility model relates to the field of substation technology, and in particular to a modular box-type substation low-voltage room isolation device. Background Technology

[0002] Modular prefabricated substation low-voltage room isolation device is a safety protection device specifically designed for the low-voltage distribution room of prefabricated substation. Its core function is to isolate the operating parts and maintenance parts of the low-voltage system through physical or electrical means, so as to ensure the safety of equipment operation and maintenance and the reliable operation of the system.

[0003] The existing modular box-type substation low-voltage room isolation device forms a clear disconnection point through the disconnecting switch, completely separating the part that needs to be maintained from the driving part. From a physical point of view, it avoids maintenance personnel from accidentally touching the live parts, which helps to reduce the risk of electric shock during operation and maintenance.

[0004] However, in practical applications, existing modular box-type substation low-voltage room isolation devices are usually fixed in the low-voltage room with bolts, which requires repeated bolt installation during the installation process. This makes the installation of the isolation device cumbersome and time-consuming, and is not conducive to improving installation efficiency.

[0005] Therefore, this application provides a modular prefabricated substation low-voltage room isolation device to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular box-type substation low-voltage room isolation device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a modular box-type substation low-voltage room isolation device, comprising a low-voltage room body, and further comprising: A modular component is placed inside the low-pressure chamber body. The modular component includes an isolation device housing disposed inside the low-pressure chamber body. The isolation device housing is connected to two sides by buckles. A support plate is disposed inside the low-pressure chamber body on the side near the isolation device housing. The isolation device housing is connected to the support plate by buckles. A quick-installation assembly, which is located inside the modular assembly and is used for quick connection to the busbar, includes a connecting plate connected to both sides inside the housing of the isolation device, and a resilient snap-fit ​​post is connected to one side of the connecting plate.

[0008] Furthermore, mounting brackets are connected to both sides of the inner side of the low-pressure chamber body near the support plate, and the support plate is connected to the mounting brackets.

[0009] The advantages of adopting the above-mentioned further solutions are: it facilitates the adjustment of the support plate and the installation position of the mounting bracket according to the actual situation, which helps to improve the flexibility of installation.

[0010] Furthermore, the support plate and the buckle are both connected to the side of each other with locking teeth, and the buckle is engaged with the support plate through the locking teeth.

[0011] The beneficial effect of adopting the above-mentioned further solution is that it further improves the firmness of the connection between the buckle and the support plate, and ensures the stability of the isolation device housing after installation.

[0012] Furthermore, one end of the elastic snap-fit ​​post has a tapered structure.

[0013] The beneficial effect of adopting the above-mentioned further solution is that when the busbar contacts the connecting plate, the tapered structure separates from the mounting hole on the busbar, and the elastic snap-fit ​​post snaps the busbar onto itself through elastic reset, thereby ensuring the stability of the connection between the busbar and the connecting plate.

[0014] Furthermore, a knife gate is provided between the two connecting plates, and a bolt is provided on the connecting plate near the bottom of the knife gate, and the knife gate is rotatably connected to the bolt.

[0015] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the control of the connection status between the two connecting plates by adjusting the rotation angle of the switch, thereby achieving physical isolation of the power supply.

[0016] Furthermore, a push plate is connected to one side of the switch, and the push plate is slidably connected to the housing of the isolation device.

[0017] The beneficial effect of adopting the above-mentioned further solution is that pushing the push plate causes the knife to move along the bolt, making it easier to disconnect the two connecting plates.

[0018] Furthermore, an anti-slip pad is provided on the side of the push plate near the housing of the isolation device.

[0019] The beneficial effect of adopting the above-mentioned further solution is that it prevents the push plate from shifting the angle of the switch due to unexpected force, which helps to improve the stability of the push plate and the switch during use.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. By setting up modular components, when it is necessary to assemble the isolation device shell, the support plate is snapped into the inside of the buckle, and then the support plate is fixed to the inside of the low-pressure chamber body. This allows for quick connection between the isolation device shell and the support plate, realizing modular assembly of the isolation device shell and the support plate, which helps to improve the overall installation efficiency of the isolation device shell.

[0021] 2. By setting up quick-installation components, when it is necessary to connect the connecting plate to the busbar, simply push the busbar towards the connecting plate. The mounting holes on the busbar will squeeze the elastic snap-fit ​​posts. The elastic snap-fit ​​posts themselves have slots that allow them to retract inward and snap into the mounting holes. In this way, the isolation device can be easily and quickly connected to the external busbar, further improving the overall installation efficiency of the isolation device. Attached Figure Description

[0022] Figure 1 This is a front view of a modular box-type substation low-voltage room isolation device according to this utility model; Figure 2 This is a structural diagram of the modular components in a modular box-type substation low-voltage room isolation device according to this utility model; Figure 3 This is a structural diagram of the buckle in a modular box-type substation low-voltage room isolation device of this utility model; Figure 4 This is a structural diagram of the elastic snap-fit ​​column in the low-voltage room isolation device of a modular box-type substation according to this utility model; Figure 5 This is a side sectional view of the outer shell of the isolation device in a modular box-type substation low-voltage room isolation device according to the present invention.

[0023] Figure label: 1. Low-pressure chamber body; 2. Modular components; 21. Isolation device housing; 22. Support plate; 23. Buckle; 24. Clamping teeth; 25. Knife gate; 26. Bolt; 27. Push plate; 28. Anti-slip pad; 29. ​​Mounting bracket; 3. Quick-installation components; 31. Connecting plate; 32. Flexible snap-fit ​​post. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a modular box-type substation low-voltage room isolation device, including a low-voltage room body 1, and further comprising: like Figure 1 - Figure 3As shown, modular component 2 is placed inside the low-pressure chamber body 1. Modular component 2 includes an isolation device housing 21 disposed inside the low-pressure chamber body 1. Buckles 23 are connected to both sides of the isolation device housing 21. A support plate 22 is disposed inside the low-pressure chamber body 1 on the side near the isolation device housing 21. The isolation device housing 21 is connected to the support plate 22 through the buckles 23. like Figure 1 - Figure 4 As shown, the quick-installation component 3 is placed inside the modular component 2 and is used for quick connection to the busbar. The quick-installation component 3 includes connecting plates 31 connected to both sides inside the isolation device housing 21. One side of the connecting plate 31 is connected to a flexible snap-fit ​​post 32. Screws are used to install snap-fit ​​posts 23 on the top and bottom of the isolation device housing 21, with the snap-fit ​​posts 23 installed in a mirror image. When installation on the isolation device housing 21 is required, a support plate 22 is snapped into the inside of the snap-fit ​​posts 23, and then the support plate 22 is fixed to the inside of the low-pressure chamber body 1. This allows for quick installation of the isolation device housing 21 onto the support plate 22, achieving modularity between the isolation device housing 21 and the support plate 22. This design solves the problem of repeatedly installing bolts 26 during installation, which makes the installation of the isolation device cumbersome and time-consuming. It is beneficial to improve the installation efficiency of the isolation device housing 21. Furthermore, by using screws to install the connecting plate 31 on the inner side of the isolation device housing 21, and welding the elastic snap-fit ​​post 32 to the connecting plate 31, when the connecting plate 31 needs to be connected to the busbar, it pushes the busbar towards the connecting plate 31. The mounting holes on the busbar squeeze the elastic snap-fit ​​post 32. Since the elastic snap-fit ​​post 32 has a slot, it can retract inward into the mounting hole, thereby facilitating the quick connection between the isolation device and the external busbar, which is beneficial to further improve the installation efficiency of the isolation device.

[0026] Furthermore, such as Figure 1 As shown, mounting brackets 29 are connected to both sides of the inner side of the low-pressure chamber body 1 near the support plate 22. The support plate 22 is connected to the mounting brackets 29. The mounting brackets 29 are installed on the inner sides of the low-pressure chamber body 1 by using screws. An array of mounting holes is opened on the mounting brackets 29 to facilitate the adjustment of the installation position of the support plate 22 and the mounting brackets 29 according to the actual situation, which helps to improve the flexibility of installation.

[0027] Furthermore, such as Figure 3As shown, the support plate 22 and the buckle 23 are both connected to each other on their adjacent sides with locking teeth 24. The buckle 23 is engaged with the support plate 22 through the locking teeth 24. By welding the locking teeth 24 to the support plate 22 and the buckle 23, when the buckle 23 is engaged with the support plate 22, the two sets of locking teeth 24 engage with each other, thereby limiting the buckle 23 in the horizontal direction, further improving the firmness of the connection between the buckle 23 and the support plate 22, and ensuring the stability of the isolation device housing 21 after installation.

[0028] Furthermore, such as Figure 4 As shown, one end of the elastic snap-fit ​​post 32 has a tapered structure. By setting a tapered structure at one end of the elastic snap-fit ​​post 32, during the installation of the busbar, the busbar first retracts the elastic snap-fit ​​post 32 through the inclined surface of the tapered structure. When the busbar contacts the connecting plate 31, the tapered structure separates from the mounting hole on the busbar, and the elastic snap-fit ​​post 32 snaps the busbar onto itself through elastic reset, thereby ensuring the stability of the connection between the busbar and the connecting plate 31.

[0029] Furthermore, such as Figure 5 As shown, a switch 25 is provided between the two connecting plates 31. A bolt 26 is provided on the connecting plate 31 near the bottom of the switch 25. The switch 25 is rotatably connected to the bolt 26. By inserting the bolt 26 into the bottom connecting plate 31 and the bottom of the switch 25, and fixing the switch 25 with a nut, the switch 25 can be rotated along the bolt 26. The connection state between the two connecting plates 31 can be controlled by adjusting the rotation angle of the switch 25, thus achieving physical isolation of the power.

[0030] Furthermore, such as Figure 5 As shown, a push plate 27 is connected to one side of the switch 25. The push plate 27 is slidably connected to the housing 21 of the isolating device. The push plate 27 is made of insulating material. The push plate 27 is installed on the switch 25 using screws. Pushing the push plate 27 causes the switch 25 to move along the bolt 26, which facilitates the disconnection of the two connecting plates 31.

[0031] Furthermore, such as Figure 5 As shown, an anti-slip pad 28 is provided on the side of the push plate 27 near the isolating device housing 21. By spraying the anti-slip pad 28 onto the push plate 27, the anti-slip pad 28 increases the friction between the push plate 27 and the isolating device housing 21, preventing the push plate 27 from shifting the angle of the switch 25 due to accidental force, which helps to improve the stability of the push plate 27 and the switch 25 during use.

[0032] Working principle: such as Figure 1 - Figure 5As shown, firstly, screws are used to install the mounting bracket 29 on both sides of the interior of the low-pressure chamber body 1. Then, a support plate 22 is installed on the mounting bracket 29. The isolation device housing 21 is pushed towards the support plate 22, causing the clip 23 on the top of the isolation device housing 21 to engage with the support plate 22. Next, another clip 23 is installed on the bottom of the isolation device housing 21 and fixed to the mounting bracket 29. This achieves modularity between the isolation device housing 21 and the support plate 22, which improves the installation efficiency of the isolation device housing 21. At this point, the support plate 22 and... The teeth 24 on the buckle 23 engage with each other to ensure a stable connection between the isolation device housing 21 and the support plate 22. Then, the external busbar is pushed towards the connecting plate 31. The mounting holes on the busbar squeeze the elastic locking post 32. Since the elastic locking post 32 has a slot, it can retract inward into the mounting hole, thus facilitating a quick connection between the isolation device and the external busbar. Next, the elastic locking post 32 resets the busbar by elastic force and locks it onto itself, thus ensuring the stability of the connection between the busbar and the connecting plate 31.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A modular box-type substation low-voltage room isolation device, comprising a low-voltage room body (1), characterized in that, Also includes: Modular component (2), the modular component (2) is placed inside the low-pressure chamber body (1), the modular component (2) includes an isolation device shell (21) disposed inside the low-pressure chamber body (1), the isolation device shell (21) is connected to the two sides of the isolation device shell (21) by buckles (23), a support plate (22) is disposed inside the low-pressure chamber body (1) on the side close to the isolation device shell (21), the isolation device shell (21) is connected to the support plate (22) by buckles (23); Quick-installation assembly (3) is placed inside the modular assembly (2) and is used for quick connection with the busbar. The quick-installation assembly (3) includes a connecting plate (31) connected to both sides inside the isolation device housing (21). One side of the connecting plate (31) is connected to an elastic snap-fit ​​post (32).

2. The modular box-type substation low-voltage compartment isolation device according to claim 1, characterized in that, The inner sides of the low-pressure chamber body (1) near the support plate (22) are connected to mounting brackets (29), and the support plate (22) is connected to the mounting brackets (29).

3. The modular box-type substation low-voltage compartment isolation device according to claim 1, characterized in that, Both the support plate (22) and the buckle (23) have teeth (24) connected to each other on their adjacent sides, and the buckle (23) is engaged with the support plate (22) through the teeth (24).

4. The modular box-type substation low-voltage room isolation device according to claim 1, characterized in that, One end of the elastic snap-fit ​​post (32) has a tapered structure.

5. A modular box-type substation low-voltage compartment isolation device according to claim 1, characterized in that, A knife gate (25) is provided between the two connecting plates (31), and a bolt (26) is provided on the connecting plate (31) near the bottom of the knife gate (25). The knife gate (25) and the bolt (26) are rotatably connected.

6. A modular box-type substation low-voltage compartment isolation device according to claim 5, characterized in that, A push plate (27) is connected to one side of the knife gate (25), and the push plate (27) is slidably connected to the housing (21) of the isolation device.

7. A modular box-type substation low-voltage compartment isolation device according to claim 6, characterized in that, An anti-slip pad (28) is provided on the side of the push plate (27) near the outer shell (21) of the isolation device.

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