Upward-entering type direct-current switch cabinet

Abstract

The utility model is suitable for the technical field of switch cabinets, and provides an upper inlet type direct current switch cabinet, which comprises a direct current switch cabinet main body, and the top of the direct current switch cabinet main body is provided with a wire inlet; the mounting shell is used for shielding dust, the mounting shell is arranged at the top of the wire inlet, and the mounting shell is fixedly connected with the direct-current switch cabinet main body; a plurality of wire inlet holes, wherein the plurality of wire inlet holes are formed in one side of the mounting shell; the first limiting plate is used for limiting a cable, and the first limiting plate is fixed on the inner wall of the mounting shell; and the second limiting plate is arranged in the mounting shell, and the distance of the second limiting plate can be adjusted. The upper inlet type direct-current switch cabinet provided by the scheme solves the problem of high cable damage risk caused by a lower wire inlet mode of a traditional direct-current switch cabinet.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch cabinets, and particularly relates to an up-inlet DC switch cabinet. Background Art

[0002] In the development of the power system, as an important part of the DC power supply system, the selection of the incoming line method of the DC switch cabinet has a crucial impact on aspects such as the performance, safety, and maintenance convenience of the equipment.

[0003] However, traditional DC switch cabinets usually adopt the lower incoming line method, that is, the cable is introduced from the bottom of the equipment. This method has some limitations in design and application. Since the lower incoming line method is used, the cable is laid in the ground or in the area near the ground, which is easily affected by factors such as ground moisture and water accumulation, increasing the risk of cable damage. Summary of the Utility Model

[0004] The utility model provides an up-inlet DC switch cabinet, aiming to solve the problem of high risk of cable damage caused by the lower incoming line method of traditional DC switch cabinets.

[0005] The utility model is realized as follows. An up-inlet DC switch cabinet includes: a DC switch cabinet main body, with an incoming line opening provided at the top of the DC switch cabinet main body; an installation shell for shielding dust, which is arranged at the top of the incoming line opening and is fixedly connected to the DC switch cabinet main body; a plurality of incoming line holes, all of which are provided on one side of the installation shell; a first limiting plate for limiting the cable, which is fixed on the inner wall of the installation shell; a second limiting plate with adjustable spacing, which is arranged inside the installation shell; an adjusting mechanism for regulating the second limiting plate, which is arranged on the installation shell; and a gas guiding mechanism for guiding air and dissipating heat, which is arranged on the installation shell.

[0006] Preferably, the adjusting mechanism includes: a screw rod rotatably installed inside the installation shell, with one end of the screw rod extending outside the installation shell; a connecting frame threadedly sleeved on the screw rod, with one end of the connecting frame fixedly connected to the second limiting plate; a guiding rod slidably installed on the connecting frame, with one end of the guiding rod fixedly connected to the inner wall of the installation shell; and a knob fixed on one end of the screw rod.

[0007] Preferably, the gas guiding mechanism includes: a gas guiding shell fixedly communicated with the top of the installation shell; a fan assembled in the gas guiding shell for introducing air; and a filter plate arranged inside the gas guiding shell and capable of being pulled out and disassembled.

[0008] Preferably, an exhaust port is provided at the top of the main body of the DC switch cabinet, and an exhaust housing is provided at the top of the exhaust port. A plurality of exhaust holes are provided on the exhaust housing.

[0009] Preferably, an operation port is provided at the top of the installation housing, and a detachable cover plate is provided at the top of the operation port. Screws are provided on the cover plate, and the screws are threadedly connected to the installation housing.

[0010] Preferably, arc-shaped grooves are provided on both the first limiting plate and the second limiting plate, and rubber pads are provided on the inner walls of the arc-shaped grooves.

[0011] Preferably, hooks for limiting are symmetrically and fixedly installed on the filter plate, and buckles are symmetrically and fixedly installed on the air guide housing. The buckles can be buckled with the corresponding hooks.

[0012] Compared with the related art, the up-feed DC switch cabinet provided by the present utility model has the following beneficial effects:

[0013] Through the design of the incoming line port and the installation housing, the cable can directly enter the DC switch cabinet from above, reducing the risk of cable laying on the ground or near the ground, such as being affected by environmental factors such as moisture and water accumulation. At the same time, the first limiting plate and the second limiting plate cooperate with the adjusting mechanism to be able to flexibly fix cables with different diameters and quantities, prevent the cables from shaking or falling off, and reduce the pressure of the cables dropping on the internal electrical components; the air guiding mechanism effectively realizes the heat dissipation requirements of the DC switch cabinet through the combination of the air guide housing, the fan and the filter plate. The fan actively introduces external cold air, the filter plate prevents dust and impurities from entering, and the exhaust port and the exhaust housing ensure the smooth discharge of hot air, thereby keeping the internal temperature of the equipment within a reasonable range and extending the service life of the cable and electrical components; the design of the installation housing and the filter plate effectively prevents dust and sundries from entering the inside of the DC switch cabinet and protects the electrical components from damage. At the same time, the detachable design of the filter plate that can be pulled out and the independent structure of the exhaust housing make the cleaning and maintenance work convenient and fast, ensuring the continuous and effective operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of an up-feed DC switch cabinet provided by the present utility model;

[0015] Figure 2 is a side cross-sectional structural schematic diagram of the present utility model;

[0016] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A shown in

[0017] Figure 4 is a front structural schematic diagram of the present utility model;

[0018] Figure 5 This is a schematic structural diagram of the first limiting plate and the second limiting plate in the present utility model.

[0019] Reference numerals: 1, main body of DC switch cabinet; 2, inlet; 3, mounting shell; 4, inlet hole; 5, first limiting plate; 6, second limiting plate; 7, screw; 8, connecting frame; 9, guide rod; 10, knob; 11, air guide shell; 12, fan; 13, filter plate; 14, exhaust shell; 15, exhaust hole; 16, cover plate. Detailed implementation manners

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] An embodiment of the present utility model provides an upward-feed DC switch cabinet, as Figures 1-5 shown, the upward-feed DC switch cabinet includes: a main body 1 of the DC switch cabinet, an inlet 2 is opened at the top of the main body 1 of the DC switch cabinet; a mounting shell 3 for blocking dust, the mounting shell 3 is arranged at the top of the inlet 2, and the mounting shell 3 is fixedly connected to the main body 1 of the DC switch cabinet; a plurality of inlet holes 4, and a plurality of the inlet holes 4 are all opened on one side of the mounting shell 3; a first limiting plate 5 for limiting the cable, the first limiting plate 5 is fixed on the inner wall of the mounting shell 3; a second limiting plate 6 with adjustable spacing, the second limiting plate 6 is arranged in the mounting shell 3; an adjusting mechanism for adjusting the second limiting plate 6, the adjusting mechanism is arranged on the mounting shell 3; an air guiding mechanism for guiding air and dissipating heat, the air guiding mechanism is arranged on the mounting shell 3.

[0023] It should be noted that in many environments, especially outdoor or underground facilities, the ground is prone to moisture or water accumulation. When a DC switchgear with a bottom-inlet cable connection method is installed in such an environment, the cable laying path will pass through or be close to these moist or waterlogged areas. After being exposed to such an environment for a long time, the outer sheath of the cable is easily damaged, resulting in the exposure of the conductors inside the cable, which may in turn cause electrical faults such as short circuits and electric leakage. In addition to the effects of moisture and water accumulation, factors such as debris on the ground and mechanical operations may also damage the cable. For example, sharp objects on the ground may scratch the outer sheath of the cable, and construction machinery may accidentally press on the cable during operation. These factors all increase the risk of cable damage, which in turn affects the normal operation of the DC switchgear. Since the cable is introduced from the bottom of the equipment, more space is required for installation and maintenance operations. This not only increases the difficulty of installation and maintenance, but may also lead to a decrease in work efficiency due to limited operating space. In some cases, the bottom-inlet cable connection method may affect the heat dissipation performance of the DC switchgear. When the cables are closely arranged at the bottom of the equipment, it may hinder air circulation, resulting in an increase in the internal temperature of the equipment. Long-term operation at high temperatures not only reduces the reliability of the equipment, but may also accelerate equipment aging. The bottom-inlet cable connection method restricts the access direction and position of the cable. When it is necessary to change the cable access direction or add new cables, it may be necessary to re-lay the cables or change the equipment layout, which increases the complexity and cost of the system. In summary, the traditional bottom-inlet cable connection method of DC switchgear has various limitations in design and application, and an up-inlet DC switchgear is needed to solve the above problems;

[0024] In this embodiment, the main structure of the DC switchgear cabinet body 1 is the main structure of the DC switchgear, which bears all the electrical components and control systems. Through the inlet 2 at its top, the cable can directly enter from above, avoiding laying the cable in the ground or in the area near the ground, thereby reducing the risk of the cable being affected by environmental factors such as moisture and waterlogging; the inlet 2 is located at the top of the DC switchgear cabinet body 1 and serves as a channel for the cable to enter. This design allows the cable to directly enter from above without laying on the ground or near the ground, effectively reducing the risk of cable damage; the installation shell 3 is installed on the top of the inlet 2 and is used to block dust and other sundries, protecting the cable and the inlet from the external environment. The installation shell 3 is fixedly connected to the DC switchgear cabinet body 1, ensuring the stability and reliability of the structure; a plurality of inlet holes 4 are opened on one side of the installation shell 3 for the access of the cable; according to actual needs, different numbers of inlet holes can be selected for cable access, improving the flexibility and adaptability of the equipment; the second limiting plate 6 is position-adjusted through an adjusting mechanism to adapt to different diameters and numbers of cables. When the cable passes through the first limiting plate 5, the second limiting plate 6 can move as needed and jointly clamp the cable with the first limiting plate 5. This clamping method can further fix the cable, prevent it from shaking or falling off during use, and at the same time reduce the downward force of the cable, relieve the pressure of the cable on the installation shell 3 and the internal electrical components. The design of the adjusting mechanism makes the clamping of the cable more flexible and convenient, and can be quickly adjusted according to different cable specifications and numbers; the air guiding mechanism is arranged on the installation shell 3 and is used for air guiding and heat dissipation. When the cable transmits electric energy, certain heat will be generated. The air guiding mechanism can effectively export this heat and keep the temperature inside the installation shell 3 within a reasonable range. This helps to extend the service life of the cable and electrical components and improve the reliability and stability of the equipment.

[0025] In a further preferred embodiment of the present utility model, the adjusting mechanism includes: a screw rod 7 rotatably installed in the installation shell 3, and one end of the screw rod 7 extends out of the installation shell 3; a connecting frame 8 threadedly sleeved on the screw rod 7, and one end of the connecting frame 8 is fixedly connected to the second limiting plate 6; a guide rod 9 slidably installed on the connecting frame 8, and one end of the guide rod 9 is fixedly connected to the inner wall of the installation shell 3; a knob 10 fixed on one end of the screw rod 7.

[0026] In this embodiment, the design of the adjustment mechanism cleverly enables precise adjustment of the position of the second stop plate 6, ensuring stable cable fixation and effectively preventing cable drop forces. A screw rod 7 is rotatably mounted inside the mounting housing 3, with one end extending outside the mounting housing 3. This design allows the user to rotate the screw rod 7 externally, thereby driving the entire adjustment mechanism. The rotation of the screw rod 7 provides a stable driving force for the adjustment mechanism, ensuring accurate and reliable adjustment. A connecting bracket 8 is threadedly mounted on the screw rod 7. When the screw rod 7 rotates, the connecting bracket 8 moves along the axial direction of the screw rod 7. Because one end of the connecting bracket 8 is fixedly connected to the second stop plate 6, the movement of the connecting bracket 8 drives the second stop plate 6 in a synchronous manner. This design allows the user to conveniently adjust the position of the second stop plate 6 by rotating the screw rod 7 to accommodate cables of varying diameters and quantities. A guide rod 9 is slidably mounted on the connecting bracket 8, with one end fixedly connected to the inner wall of the mounting housing 3. The presence of the guide rod 9 ensures the stability and linearity of the connecting bracket 8 during movement. It limits the movement of the connecting frame 8 to the axial direction of the guide rod 9, preventing the connecting frame 8 from deflecting or shaking during movement. This design improves the accuracy and reliability of adjustment and ensures the stable fixation of the cable. The knob 10 is fixed to one end of the screw rod 7, making it convenient for the user to rotate it. The design of the knob 10 makes it easier for the user to turn the screw rod 7, thereby quickly adjusting the position of the second limit plate 6. The addition of the knob 10 not only improves the convenience of operation, but also enhances the user experience.

[0027] In a further preferred embodiment of the present invention, the air guide mechanism includes: an air guide shell 11 fixedly connected to the top of the mounting shell 3; a fan 12 assembled on the air guide shell 11 for introducing air; and a filter plate 13 arranged in the air guide shell 11 and capable of being pulled out and removed.

[0028] In this embodiment, the design of the air guiding mechanism provides effective heat dissipation and dust prevention measures for the DC switch cabinet; the air guiding shell 11 is fixedly connected to the top of the installation shell 3, forming a channel for air circulation. This design enables external air to smoothly enter the interior of the installation shell 3, providing the cold air required for heat dissipation of the equipment. At the same time, the fixed connection structure of the air guiding shell 11 ensures the stability and continuity of the air flow, avoiding air flow short - circuit or dissipation; the fan 12 is assembled inside the air guiding shell 11 and is used to actively introduce external air. When the fan 12 starts, it can accelerate the air flow speed and improve the heat dissipation efficiency. The introduction of the fan 12 makes the heat dissipation process more active and controllable, and the rotation speed of the fan can be adjusted according to the temperature state of the equipment to achieve more precise heat dissipation control; the filter plate 13 is arranged inside the air guiding shell 11 and is detachable and removable. This design enables the filter plate 13 to be conveniently cleaned and replaced, ensuring the continuous and effective operation of the air guiding mechanism. The main function of the filter plate 13 is to filter the air entering the interior of the installation shell 3, preventing dust and impurities from entering the equipment and damaging the electrical components. By regularly cleaning and replacing the filter plate 13, the cleanliness of the air circulation can be ensured, improving the reliability and stability of the equipment.

[0029] In a further preferred embodiment of the present utility model, an exhaust port is provided at the top of the DC switch cabinet main body 1, and an exhaust shell 14 is provided at the top of the exhaust port. A plurality of exhaust holes 15 are opened on the exhaust shell 14.

[0030] In this embodiment, the design of the exhaust port at the top of the DC switch cabinet main body 1 and the exhaust shell 14 thereon provides an efficient heat dissipation path for the switch cabinet, ensuring the stable operation of the equipment in a high - temperature environment; an exhaust port is provided at the top of the DC switch cabinet main body 1. This design allows the heat generated inside the cabinet to be smoothly discharged through the exhaust port. The position of the exhaust port is selected at the top, which is conducive to the rise and discharge of hot air, thus improving the heat dissipation efficiency; the exhaust shell 14 provided at the top of the exhaust port not only protects the exhaust port, preventing dust and sundries from entering, but also further enhances the heat dissipation effect. The exhaust shell 14, as an independent component, can be conveniently cleaned and maintained, ensuring the unobstructed exhaust port; the plurality of exhaust holes 15 opened on the exhaust shell 14 are the direct channels for heat discharge. The number and size of these exhaust holes 15 are carefully designed to achieve the maximum heat dissipation effect on the premise of not affecting the safety of the equipment. At the same time, the arrangement of the exhaust holes 15 is also conducive to the uniform distribution and discharge of hot air.

[0031] In a further preferred embodiment of the present utility model, an operation port is opened at the top of the installation shell 3, and a detachable cover plate 16 is provided at the top of the operation port. Screws are provided on the cover plate 16, and the screws are threadedly connected to the installation shell 3.

[0032] In this embodiment, the operation opening at the top of the installation shell 3 and its detachable cover plate 16 are designed to provide great convenience for the installation, debugging and maintenance of the device; an operation opening is provided at the top of the installation shell 3, and this design allows users to install, debug and maintain the internal electrical components or cables without completely disassembling the installation shell 3; the size and position of the operation opening are carefully designed to ensure that users can conveniently perform various operations; a detachable cover plate 16 is provided at the top of the operation opening, and the cover plate 16 is threadedly connected to the installation shell 3 by screws. This connection method enables the cover plate 16 to be firmly fixed on the installation shell 3 to prevent dust and debris from entering the interior of the device. At the same time, when internal operations are required, users can easily unscrew the screws and remove the cover plate 16 without using additional tools or equipment.

[0033] In a further preferred embodiment of the present utility model, arc-shaped grooves are provided on both the first limiting plate 5 and the second limiting plate 6, and rubber pads are provided on the inner walls of the arc-shaped grooves.

[0034] In this embodiment, the arc-shaped grooves provided on both the first limiting plate 5 and the second limiting plate 6 and the design of the rubber pads on their inner walls provide a more stable and gentle clamping force for the fixation of the cable, thereby further improving the cable fixation effect and the reliability of the device; the arc-shaped grooves provided on both the first limiting plate 5 and the second limiting plate 6 are to better adapt to the shape of the cable. The cable is usually cylindrical, and the design of the arc-shaped groove can more closely fit the contour of the cable, thereby providing a more stable clamping force. This design enables the cable to be less likely to slide or shift when subjected to external forces or its own gravity, ensuring the stable fixation of the cable; the rubber pads are provided on the inner walls of the arc-shaped grooves to increase the softness of the clamping force. The rubber pads have characteristics such as softness, wear resistance and anti-slip, and can effectively prevent the cable from being damaged during the clamping process. At the same time, the rubber pads can also increase the friction between the clamping surface and the cable, further improving the clamping stability. This design enables the cable to be both stable during fixation and avoid being subjected to excessive pressure or wear.

[0035] In a further preferred embodiment of the present utility model, hooks for limiting are symmetrically and fixedly installed on the filter plate 13, and buckles are symmetrically and fixedly installed on the air guide shell 11, and the buckles can be buckled with the corresponding hooks.

[0036] In this embodiment, the limiting hooks symmetrically and fixedly installed on the filter plate 13 and the buckles symmetrically and fixedly installed on the air guide shell 11 constitute a simple and effective fixing mechanism. When the filter plate 13 needs to be installed in the air guide shell 11, just place the filter plate 13 into the air guide shell 11 and snap the hooks with the corresponding buckles to fix the filter plate 13. Similarly, when the filter plate 13 needs to be disassembled for cleaning or replacement, just separate the buckles from the hooks; the limiting hooks and buckles are symmetrically designed, making the installation of the filter plate 13 in the air guide shell 11 more stable.

[0037] In summary, the up-feed DC switchgear provided by this technical solution effectively solves various limitations of traditional down-feed DC switchgear by changing the cable access method, adding design elements such as the installation shell 3 and the limiting plate. This design not only improves the safety and stability of the cable but also enhances the heat dissipation performance and service life of the equipment.

[0038] Compared with the related technology, through the design of the cable inlet 2 and the installation shell 3, the cable can directly enter the DC switchgear from above, reducing the risk of cable laying on or near the ground, such as being affected by environmental factors like moisture and waterlogging. At the same time, the first limiting plate 5 and the second limiting plate 6 cooperate with the adjustment mechanism to flexibly fix cables with different diameters and quantities, preventing the cables from shaking or falling off and reducing the pressure on the internal electrical components caused by the cable sag; the air guide mechanism effectively meets the heat dissipation requirements of the DC switchgear through the combination of the air guide shell 11, the fan 12, and the filter plate 13. The fan 12 actively introduces external cold air, the filter plate 13 prevents dust and impurities from entering, and the exhaust port and the exhaust shell 14 ensure the smooth discharge of hot air, thereby keeping the internal temperature of the equipment within a reasonable range and extending the service life of the cable and electrical components; the design of the installation shell 3 and the filter plate 13 effectively prevents dust and debris from entering the interior of the DC switchgear and protects the electrical components from damage. At the same time, the pull-out and detachable design of the filter plate 13 and the independent structure of the exhaust shell 14 make the cleaning and maintenance work convenient and fast, ensuring the continuous and effective operation of the equipment.

[0039] It should be noted that the circuits, electronic components, and modules involved in the present utility model are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods.

[0040] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the various embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not depart from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. An upward-feed DC switch cabinet, characterized in that, Including: The main body of a DC switch cabinet, at the top of which an inlet is provided; An installation shell for blocking dust, which is arranged at the top of the inlet, and the installation shell is fixedly connected to the main body of the DC switch cabinet; A plurality of inlet holes, all of which are opened on one side of the installation shell; A first limiting plate for limiting the cable, which is fixed on the inner wall of the installation shell; A second limiting plate with adjustable spacing, which is arranged in the installation shell; An adjusting mechanism for adjusting the second limiting plate, which is arranged on the installation shell; An air guiding mechanism for guiding air and dissipating heat, which is arranged on the installation shell.

2. The up-feed type DC switchgear according to claim 1, characterized in that, The adjusting mechanism includes: A screw rod rotatably installed in the installation shell, one end of which extends out of the installation shell; A connecting frame threadedly sleeved on the screw rod, one end of which is fixedly connected to the second limiting plate; A guiding rod slidably installed on the connecting frame, one end of which is fixedly connected to the inner wall of the installation shell; A knob fixed on one end of the screw rod.

3. The up-feed type DC switch cabinet according to claim 1, characterized in that, The air guiding mechanism includes: An air guiding shell fixedly communicated with the top of the installation shell; A fan assembled in the air guiding shell for introducing air; A filter plate arranged in the air guiding shell and can be pulled out and disassembled.

4. The upward-inlet DC switch cabinet according to claim 1, wherein An exhaust port is arranged at the top of the main body of the DC switch cabinet, an exhaust shell is arranged at the top of the exhaust port, and a plurality of exhaust holes are opened on the exhaust shell.

5. The upward-feed DC switch cabinet according to claim 1, characterized in that, An operation port is opened on the top of the installation shell, a detachable cover plate is arranged at the top of the operation port, and screws are arranged on the cover plate, and the screws are threadedly connected to the installation shell.

6. The upward-feed DC switch cabinet according to claim 1, characterized in that, Arc-shaped grooves are opened on both the first limiting plate and the second limiting plate, and rubber pads are arranged on the inner walls of the arc-shaped grooves.

7. The upward-feed DC switch cabinet according to claim 3, characterized in that, Hook-shaped members for limiting are symmetrically and fixedly installed on the filter plate, buckle members are symmetrically and fixedly installed on the air guiding shell, and the buckle members can be buckled with the corresponding hook-shaped members.

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