A power distribution cabinet structure

Abstract

This invention discloses a power distribution cabinet structure, belonging to the field of power distribution cabinets. It includes a cabinet body, with components fixedly connected internally by bolts. A mounting frame is fixedly connected to the bottom of each component by bolts. The mounting frame has a pre-reservation mechanism inside. The pre-reservation mechanism includes a fixing plate fixedly connected to the mounting frame, with a first U-shaped groove inside the fixing plate. The mounting frame separates the components, preventing the installation of other objects at the mounting frame location and allowing for better heat dissipation space within the cabinet. Cables passing through the first U-shaped groove pass through a second U-shaped groove and align with the recessed position of the second U-shaped groove within a movable plate. Moving the movable plate causes it to carry the internal cables, increasing the cable length from the movable plate to the components, thus achieving the effect of pre-reserving the cables.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power distribution cabinets, more particularly to a power distribution cabinet structure. BACKGROUND

[0002] Power distribution cabinets are divided into power distribution cabinets and lighting distribution cabinets, metering cabinets, and are the last stage of the power distribution system. The power distribution cabinet is the general term of the motor control center. The power distribution cabinet is suitable for the occasion where the load is relatively dispersed and the circuit is less. The motor control center is used for the occasion where the load is concentrated and the circuit is more. They distribute the power of a certain circuit of the upper level power distribution equipment to the nearby load. The equipment should provide protection, monitoring and control for the load. It undertakes the key tasks of power reception, distribution, control, protection, monitoring, etc. Its development has always been around the core goals of safety, reliability, high efficiency, intelligence and easy maintenance, and continues to evolve with the emergence of new materials, new devices and new standards.

[0003] The Chinese patent with the authorization announcement number CN111082327B discloses a power distribution cabinet. The three-axis transfer mechanism drives the fan assembly to move in the cabinet body, so that the fan assembly has three spatial movement degrees of freedom, so that the fan can reach each position in the cabinet body to clean the inside of the power distribution cabinet. Thus, the technical scheme of the embodiment of the present application can improve the cleaning effect and automation level of the inside of the power distribution cabinet, reduce the labor cost, and is beneficial to the safe operation of the power distribution equipment.

[0004] The Chinese patent with the authorization announcement number CN118970680B discloses a power distribution cabinet. The protective mechanism can shield the heat dissipation port in rainy and windy weather, prevent rainwater from entering the power distribution cabinet from the heat dissipation port, damage the elements, and cool the elements in the power distribution cabinet in windy weather without an additional power source, reducing energy consumption.

[0005] The first patent above can improve the cleaning effect and automation level of the inside of the power distribution cabinet, and reduce the labor cost. The second patent prevents rainwater from entering the power distribution cabinet from the heat dissipation port, damages the elements, and cools the elements in the power distribution cabinet in windy weather without an additional power source. However, the wire harnesses in the power distribution cabinet are bundled together by a tie, and during maintenance, the wires need to be cut, the reserved part of the wires needs to be pulled out after the tie is removed, and then the wires need to be re-routed and bundled again. The whole process is quite cumbersome. SUMMARY

[0006] In view of the problems in the prior art, the power distribution cabinet structure aims to separate components by installing a frame, prevent other objects from being installed at the position of the frame, facilitate the components to reserve space for heat dissipation inside the cabinet body, and make the components have better heat dissipation effect, the cable in the first U-shaped groove passes through the second U-shaped groove, and the cable is attached to the recessed position of the second U-shaped groove in the moving plate, the moving plate is moved, the cable length from the moving plate to the components is lengthened, and the effect of reserving the cable is achieved.

[0007] To solve the above problems, the application adopts the following technical scheme.

[0008] A power distribution cabinet structure includes a cabinet body, the inside of the cabinet body is fixedly connected with components through bolts, the bottom of the components is fixedly connected with an installation frame through bolts, and the inside of the installation frame is provided with a reservation mechanism.

[0009] The reservation mechanism includes a fixed plate fixedly connected with the installation frame, the inside of the fixed plate is provided with a first U-shaped groove, the top of the fixed plate is provided with a moving plate in sliding connection with the installation frame, and the inside of the moving plate is provided with a second U-shaped groove.

[0010] Further, the rear side of the installation frame is fixedly connected with limiting plates at the upper and lower ends, and the inside of the two limiting plates is provided with a first circular hole corresponding to the arc of the second U-shaped groove.

[0011] Further, the front side of the moving plate is fixedly connected with a push plate, the front side of the installation frame is slidingly connected with a limiting block, the inside of the push plate is provided with a second sliding groove accommodating the movement of the limiting block corresponding to the movement track of the limiting block, and the groove bottom of the second sliding groove is provided with a plurality of triangular grooves.

[0012] Further, the inside of the second sliding groove is welded with a first spring, the first spring is in a natural stretching state when the push plate is not moving, the cross-sectional shape of the triangular groove is an isosceles triangle, and the cross-sectional shape of the limiting block is a right trapezoid.

[0013] Further, the side of the installation frame close to the limiting block extends to the direction of the limiting block to form a return spring, the inside of the limiting block is welded with a first extension block welded with the return spring, and the first extension block is in a tight state.

[0014] Further, the two sides of the limiting block extend to form first side plates, and the inside of the first side plates is provided with a plurality of tooth grooves distributed at equal intervals.

[0015] Furthermore, a protective mechanism is provided on the front side of the mounting frame. The protective mechanism includes a second side plate fixedly connected to both sides of the front end of the mounting frame. A cylinder is rotatably connected inside the second side plate. A gear is fixedly connected to the side of the cylinder near the limiting block. A protective plate is sleeved on the surface of the cylinder.

[0016] Furthermore, the fixed plate is provided with an alarm mechanism inside. The alarm mechanism includes a mounting plate that is slidably connected inside the first U-shaped groove. The fixed plate has a first sliding groove inside corresponding to the moving trajectory of the mounting plate. A copper sheet is fixedly connected to the front side of the mounting plate. The cross-sectional shape of the copper sheet is semi-circular.

[0017] Furthermore, a second spring is provided on the rear side of the mounting plate and welded to the mounting plate, and an airbag is fixedly connected to the front side of the interior of the mounting plate.

[0018] Furthermore, a compression plate is fixedly connected to the rear side of the airbag, and a buzzer is fixedly connected to the inner rear side of the mounting plate, with a moving groove between the buzzer and the compression plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This solution uses an installation frame to separate components, preventing the installation of other objects at the frame location. This allows for better heat dissipation within the cabinet, providing more space for the components to dissipate heat. Cables pass through the first U-shaped groove and then through the second U-shaped groove, aligning with the recessed area of ​​the second U-shaped groove within the moving plate. Moving the moving plate allows the internal cables to move, increasing the cable length from the moving plate to the component, thus achieving the desired cable allowance. Furthermore, when installing multiple cables, the existence of multiple sets of the first and second U-shaped grooves facilitates simultaneous cable allowance, making the device more convenient to use. When the device needs maintenance and the cable length is insufficient, simply loosen the moving plate to allow the allowance to be unobstructed, enabling quick wiring without disassembling the bundled cable, further enhancing the device's usability.

[0021] 2. In this solution, the cable passing through the first U-shaped groove first passes through the first circular hole in the bottom limiting plate, then passes through the first and second U-shaped grooves, and finally through the first circular hole in the limiting plate near the moving plate. After passing through the last first circular hole, the cable connects to the component. The cable is restricted by the first circular holes in the two limiting plates, preventing it from shifting. When the moving plate moves and squeezes the cable, causing it to move, the cable will not tilt with the component during the connection process, resulting in a better connection effect. The connection between the cable and the component will not change from a vertical connection to an inclined connection due to the movement of the moving plate, effectively avoiding the phenomenon that the connection between the cable and the component is easy to loosen.

[0022] 3. This solution involves pulling the limit block when cable maintenance is needed, causing it to move upwards. This facilitates the movement of the push plate, which in turn moves the movable plate towards the mounting frame. This allows for easy pulling of the pre-installed cables for connection. After movement, the push plate is re-engaged into the corresponding triangular slot by the limit block, ensuring secure connection between the push plate and the mounting frame. When the limit block engages in the nearest triangular slot, it indicates that a cable segment is missing. The cable ties used for the next maintenance will need to be cut. Pre-installed cables can be organized beforehand for easier future maintenance. During initial cable installation, after moving the push plate and the limit block to the last triangular slot, the push plate can move forward again to secure the cable and components. Moving the push plate again, along with the movable plate, compresses the connected cables, allowing for better detection of loose connections through a pull test.

[0023] 4. This solution uses a return spring to limit the limit block, making it easier for the limit block to move on the surface of the mounting frame. The first extension block is in a taut state. When the push plate moves and the triangular groove coincides perpendicularly with the limit block, the limit block is engaged in the interior of the triangular groove under the action of the first extension block, making the movement of the limit block easier. Moreover, the limit block is always engaged in the interior of the triangular groove under the action of the first extension block, making the device easier to use. The rotation of the cylinder causes the protective plate to rotate upward. After rotation, the protective plate blocks the components, preventing accidental contact by personnel and protecting the components, thus improving the protection effect of the device. During maintenance, if the push plate needs to be pulled, the protective plate can return to its original position simply by the limit block returning to its original position, exposing the components that need maintenance.

[0024] 5. This solution ensures that the copper sheet remains in constant contact with the wire. When the device heats up due to a component, the cable also heats up. The heat from the cable is transferred to the mounting plate through the copper sheet. At this time, the mounting plate and its interior heat up, and the gas inside the airbag expands due to the heat within the mounting plate. A compression plate is fixedly connected to the rear side of the airbag. The compression plate moves inside the mounting plate, and a buzzer is fixedly connected to the rear side of the mounting plate. When the compression plate presses the buzzer button, the buzzer emits an alarm signal, allowing staff to accurately identify which component's wire is malfunctioning and address it in advance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the power distribution cabinet of the present invention;

[0026] Figure 2 This is a schematic diagram of the installation frame of the present invention;

[0027] Figure 3 This is a side sectional view of the mounting frame of the present invention;

[0028] Figure 4 This is a schematic diagram of the protective mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the fixed plate and the movable plate of the present invention;

[0030] Figure 6 This is a top view of the mounting frame of the present invention;

[0031] Figure 7 This is a top sectional view of the fixing plate of the present invention;

[0032] Figure 8 for Figure 7 Enlarged view of part A.

[0033] Explanation of the labels in the diagram:

[0034] 1. Cabinet; 2. Components; 3. Mounting frame; 31. Limiting block; 311. First side plate; 312. Gear groove; 32. Return spring; 33. First extension block; 4. Reserved mechanism; 41. Fixing plate; 411. First U-shaped groove; 412. First sliding groove; 42. Constraint plate; 421. First round hole; 43. Push plate; 431. Triangular groove; 432. First spring; 433. Second sliding groove; 44. Moving plate; 441. Second U-shaped groove; 5. Protection mechanism; 51. Second side plate; 52. Cylinder; 521. Gear; 53. Protection plate; 6. Alarm mechanism; 61. Mounting plate; 62. Second spring; 63. Buzzer; 64. Moving groove; 65. Squeezing plate; 66. Airbag; 67. Copper sheet. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1 to 8 A power distribution cabinet structure includes a cabinet body 1. Components 2 are bolted to the inside of the cabinet body 1. A mounting frame 3 is bolted to the bottom of each component 2, separating the components 2 and preventing the installation of other objects at the mounting frame 3 location. This allows for better heat dissipation of the components 2 within the cabinet body 1. The mounting frame 3 has a pre-installed mechanism 4, including a fixing plate 41 fixedly connected to the mounting frame 3. Cables are routed inside the cabinet body 1 and then passed through the fixing plate 41 before being connected to the components 2. Since the cables are fixed to the bottom of the components 2, passing through the fixing plate 41 does not affect the cable routing. The fixing plate 41 has a first U-shaped groove 411 inside, allowing the cables to move upwards after passing through the groove, facilitating their movement towards the components 2. The top of 41 is provided with a movable plate 44 that is slidably connected to the mounting frame 3. The movable plate 44 has a second U-shaped groove 441 inside. The cable passing through the first U-shaped groove 411 passes through the second U-shaped groove 441 and is attached to the recessed position of the second U-shaped groove 441 inside the movable plate 44. By moving the movable plate 44, the movable plate 44 moves with the internal cable, and the cable length from the movable plate 44 to the component 2 becomes longer, thereby achieving the effect of cable reservation. When installing cables, multiple cables need to be installed. There are multiple sets of second U-shaped grooves 441 and first U-shaped grooves 411, which makes it convenient to reserve multiple cables at the same time, making the device more convenient to use. When the device needs maintenance and the cable length is insufficient, the movable plate 44 can be gradually loosened so that the reserved cable is no longer blocked by the movable plate 44. This allows for quick wiring without disassembling the bundled wires, making the device more convenient to use.

[0037] like Figures 1 to 8As shown, both the upper and lower ends of the rear side of the mounting frame 3 are fixedly connected to constraint plates 42. The interior of each constraint plate 42, corresponding to the arc of the second U-shaped groove 441, has a first circular hole 421. The cable passing through the first U-shaped groove 411 first passes through the first circular hole 421 in the bottom constraint plate 42, then passes through the first U-shaped groove 411 and the second U-shaped groove 441, and finally passes through the first circular hole 421 in the constraint plate 42 near the moving plate 44. After passing through the final first circular hole 421, the cable connects to the component 2. The constraint of the first circular holes 421 in the two constraint plates 42 prevents the cable from shifting, and the movement of the moving plate 44 squeezes the cable, causing it to... During movement, the cable will not tilt with component 2 during the connection process, resulting in a better connection. The connection between component 2 and the cable will not change from a perpendicular connection to an inclined connection due to the movement of the moving plate 44, effectively preventing the connection from becoming loose. A push plate 43 is fixedly connected to the front of the moving plate 44. Moving the push plate 43 allows the moving plate 44 to move towards the fixed plate 41, making the movement of the push plate 43 more convenient. A limit block 31 is slidably connected to the front of the mounting frame 3. When the push plate 43 moves the moving plate 44 towards the fixed plate 41, the limit block 31 remains within the range of the push plate 43. Internally, the push plate 43 has a second groove 433 corresponding to the movement trajectory of the limiting block 31, which accommodates the movement of the limiting block 31, making the movement of the push plate 43 more stable. The bottom of the second groove 433 has multiple triangular grooves 431. Each time cable maintenance is needed, the limiting block 31 is pulled, causing it to move upwards, facilitating the movement of the push plate 43. The push plate 43 then moves the moving plate 44 towards the mounting frame 3, facilitating the pulling of the pre-installed cable for wiring. After moving, the push plate 43 is again engaged with the corresponding triangular groove 431 by the limiting block 31, facilitating the fixation between the push plate 43 and the mounting frame 3. When the most recent triangular slot 431 appears, it indicates that a certain cable has no reserved wire segment. The cable ties binding the cable harness will need to be cut during the next maintenance. This time, the reserved cable can be arranged in advance, making the next maintenance more convenient. When initially installing the cable, by moving the push plate 43, after the limit block 31 reaches the last triangular slot 431, the push plate 43 can move forward again. At this time, after fixing the cable and component 2, move the push plate 43, so that the push plate 43 and the moving plate 44 squeeze the connected cable again. The connected cable is squeezed by the moving plate 44. By pulling the connected cable, loose cables can be observed, and the connection detection effect of the cable is better.

[0038] like Figures 1 to 8As shown, a first spring 432 is welded inside the second groove 433. During the movement of the push plate 43, the limiting block 31 and the push plate 43 compress the first spring 432. The first spring 432 is in a naturally extended state when the push plate 43 is not moving. When the first spring 432 is compressed, it changes from a naturally extended state to a taut state, facilitating the push plate 43 to return to its original state under the action of the first spring 432. The triangular groove 431 has an isosceles triangle cross-section, and the limiting block 31 has a right trapezoidal cross-section. The mounting frame 3 extends towards the limiting block 31 from the side closest to it, forming a complex... The positioning spring 32 restricts the limiting block 31, making it easier for the limiting block 31 to move on the surface of the mounting frame 3. The limiting block 31 has a first extension block 33 welded to the inside, which is also welded to the reset spring 32. The first extension block 33 is in a taut state. When the push plate 43 moves and the triangular groove 431 is perpendicularly aligned with the limiting block 31, the limiting block 31 is engaged in the interior of the triangular groove 431 under the action of the first extension block 33, making it easier for the limiting block 31 to move. The limiting block 31 is always engaged in the interior of the triangular groove 431 under the action of the first extension block 33, making the device easier to use.

[0039] like Figures 1 to 8 As shown, both sides of the limiting block 31 extend to form first side plates 311. When the limiting block 31 moves, the limiting block 31 moves along with the first side plates 311. The interior of the first side plates 311 is provided with multiple equally spaced toothed grooves 312. During the movement of the limiting block 31, the toothed grooves 312 move along with the limiting block 31. A protective mechanism 5 is provided on the front side of the mounting frame 3. The protective mechanism 5 includes a second side plate 51 fixedly connected to both sides of the front end of the mounting frame 3. A cylinder 52 is rotatably connected inside the second side plate 51. A gear 521 is fixedly connected to the side of the cylinder 52 closest to the limiting block 31. When the limiting block 31 moves along with the toothed grooves 312... During the process, the tooth groove 312 drives the gear 521 to rotate, and the gear 521 is fixedly connected to the cylinder 52, so that the gear 521 carries the cylinder 52 to rotate, making the rotation of the cylinder 52 more convenient. The surface of the cylinder 52 is covered with a protective plate 53. The rotation of the cylinder 52 carries the protective plate 53 to rotate upward. After rotation, the protective plate 53 blocks the component 2 to prevent accidental contact by personnel and protects the component 2, making the device more effective. During maintenance, it is necessary to pull the push plate 43. At this time, the protective plate 53 can return to its original position when the limit block 31 returns to its original position, and the component 2 that needs to be maintained can be exposed to the outside.

[0040] like Figures 1 to 8As shown, an alarm mechanism 6 is provided inside the fixed plate 41. The alarm mechanism 6 includes a mounting plate 61 slidably connected inside the first U-shaped groove 411. A first sliding groove 412 is provided inside the fixed plate 41 corresponding to the moving trajectory of the mounting plate 61. A copper sheet 67 is fixedly connected to the front side of the mounting plate 61. When the cable moves inside the fixed plate 41, the cable is always pressed against the copper sheet 67, causing the copper sheet 67 to move with the mounting plate 61 inside the fixed plate 41. A second spring 62 is provided on the rear side of the mounting plate 61 and welded to the mounting plate 61. During the movement of the mounting plate 61, the second spring 62 is always pressed by the mounting plate 61, which makes it easy for the copper sheet 67 to always be in contact with the wire. When the device heats up due to a certain component 2, the cable will also heat up. The heat of the cable is transferred to the mounting plate 61 through the copper sheet 67. At this time, the mounting plate 61 and its interior heat up. An airbag 6 is fixedly connected to the front side of the interior of the mounting plate 61. 6. The gas inside the airbag 66 expands due to the heat inside the mounting plate 61. A compression plate 65 is fixedly connected to the rear side of the airbag 66. At this time, the compression plate 65 moves inside the mounting plate 61. A buzzer 63 is fixedly connected to the rear side inside the mounting plate 61. When the compression plate 65 presses the button of the buzzer 63, the buzzer 63 emits an alarm signal, which makes it easy for the staff to accurately know which component 2's wire is abnormal and to deal with it in advance. There is a moving groove 64 between the buzzer 63 and the compression plate 65. Due to the high temperature inside the device, the moving groove 64 buffers the movement of the compression plate 65, so that the heat transferred by the copper sheet 67 reaches a certain level before the compression plate 65 can press the buzzer 63, which is more effective in protecting the device. The cross-sectional shape of the copper sheet 67 is semi-circular. The semi-circular shape of the copper sheet 67 can better fit the cable and better transfer the heat of the cable.

[0041] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A power distribution cabinet structure, comprising a cabinet body (1), wherein components (2) are fixedly connected inside the cabinet body (1) by bolts, characterized in that: The bottom of the component (2) is fixedly connected to the mounting frame (3) by bolts, and the mounting frame (3) is provided with a reserved mechanism (4). The reserved mechanism (4) includes a fixed plate (41) fixedly connected to the mounting frame (3), the fixed plate (41) has a first U-shaped groove (411) inside, the top of the fixed plate (41) is provided with a movable plate (44) slidably connected to the mounting frame (3), and the movable plate (44) has a second U-shaped groove (441) inside. Both ends of the rear side of the mounting frame (3) are fixedly connected to the limiting plates (42), and the two limiting plates (42) are provided with first round holes (421) at the arc of the second U-shaped groove (441). A push plate (43) is fixedly connected to the front side of the movable plate (44), and a limit block (31) is slidably connected to the front side of the mounting frame (3). A second slide groove (433) is provided inside the push plate (43) to accommodate the movement of the limit block (31) along its movement trajectory. A plurality of triangular grooves (431) are provided at the bottom of the second slide groove (433). The second slide (433) is welded with a first spring (432). The first spring (432) is in a naturally extended state when the push plate (43) is not moving. The cross-sectional shape of the triangular groove (431) is an isosceles triangle, and the cross-sectional shape of the limiting block (31) is a right trapezoid. The mounting frame (3) extends towards the limiting block (31) from the side near the limiting block (31) to form a reset spring (32). The limiting block (31) has a first extension block (33) welded to the reset spring (32) inside. The first extension block (33) is in a taut state. Both sides of the limiting block (31) extend to form a first side plate (311), and the first side plate (311) has a plurality of equally spaced toothed grooves (312) inside. The front side of the mounting frame (3) is provided with a protective mechanism (5). The protective mechanism (5) includes a second side plate (51) fixedly connected to both sides of the front end of the mounting frame (3). A cylinder (52) is rotatably connected inside the second side plate (51). A gear (521) is fixedly connected to the side of the cylinder (52) near the limiting block (31). A protective plate (53) is sleeved on the surface of the cylinder (52).

2. The power distribution cabinet structure according to claim 1, characterized in that: An alarm mechanism (6) is provided inside the fixed plate (41). The alarm mechanism (6) includes a mounting plate (61) that is slidably connected inside the first U-shaped groove (411). A first sliding groove (412) is provided inside the fixed plate (41) corresponding to the moving trajectory of the mounting plate (61). A copper sheet (67) is fixedly connected to the front side of the mounting plate (61). The cross-sectional shape of the copper sheet (67) is semi-circular.

3. The power distribution cabinet structure according to claim 2, characterized in that: A second spring (62) is provided on the rear side of the mounting plate (61) and welded to the mounting plate (61), and an airbag (66) is fixedly connected to the front side of the interior of the mounting plate (61).

4. The power distribution cabinet structure according to claim 3, characterized in that: An extrusion plate (65) is fixedly connected to the rear side of the airbag (66), and a buzzer (63) is fixedly connected to the rear side of the inner side of the mounting plate (61). There is a moving groove (64) between the buzzer (63) and the extrusion plate (65).

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