An alternating current low voltage switchgear with accelerated internal gas flow

Abstract

The utility model discloses an alternating current low -voltage distribution cabinet of accelerating internal gas flow, including the cabinet, the cabinet top surface is equipped with the vent, the cabinet outside is equipped with the blower fan, the blower fan is provided with multiple groups, and multiple groups blower fan outside all are provided with multiple groups fixed establishment, the fixed establishment includes the plug -in rod and the fixed cover, the plug -in rod is fixed in the cabinet outer wall and is inserted with the blower fan, the fixed cover is inserted in the plug -in rod top and bottom surface and the outer wall of blower fan abuts, the fixed cover top end rotation is equipped with the draw bar, the draw bar top end rotation is connected and is equipped with the push rod, and the draw bar with push rod all are provided with multiple groups, and multiple groups push rod in -side all are fixed and are equipped with the clamping block, the plug -in rod outer wall is equipped with the clamping groove, the clamping groove is provided with multiple groups and is respectively with multiple groups clamping block abuts, the plug -in rod top end abuts and is equipped with the abutting plate, and effectively solved the position fixed and the uneven heat dissipation problem that the traditional bolt fixed mode led.

Description

Technical Field

[0001] This utility model relates to the field of AC low-voltage distribution cabinet technology, and more specifically, it relates to an AC low-voltage distribution cabinet that accelerates the internal gas flow. Background Technology

[0002] In the scenario of heat dissipation maintenance of AC low-voltage distribution cabinets, the cabinets need to supply fresh air into the cabinet through an external fan system to accelerate heat dissipation. Due to the large differences in the installation environment and heat dissipation requirements of the distribution cabinets, the fan installation position needs to be flexibly adjusted to optimize airflow organization. In the operation and maintenance of the distribution cabinets, the fan position needs to be adjusted according to the layout of the equipment and the heat distribution inside the cabinet to achieve the best heat dissipation effect. Traditional fan fixing methods use bolt fastening or clip connection. During fan installation and replacement maintenance, operators need to frequently disassemble and assemble the fan for cleaning, maintenance or troubleshooting. However, the existing fixing method is cumbersome and time-consuming. Each disassembly and assembly requires the use of screwdrivers and other tools to tighten or loosen multiple fixing points one by one. The disassembly and assembly time of a single fan often takes several minutes, and repeated disassembly and assembly can easily lead to thread wear or clip breakage, gradually reducing the reliability of the fixing. This not only significantly increases the maintenance workload and downtime, but also makes it easy for human errors such as improper installation or loose fastening due to the complexity of the operation, affecting the operational safety of the distribution cabinet. Utility Model Content

[0003] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides an AC low-voltage distribution cabinet that accelerates internal gas flow, thereby solving the technical problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an AC low-voltage distribution cabinet for accelerating internal gas flow, comprising a cabinet body, a ventilation hole on the top surface of the cabinet body, a blower on the outer side of the cabinet body, multiple sets of blowers, and multiple sets of fixing mechanisms on the outer side of each set of blowers, each fixing mechanism comprising a plug rod and a fixing sleeve, the plug rod being fixed to the outer wall of the cabinet body and plugged into the blower, the fixing sleeve being plugged into the top of the plug rod and its bottom surface abutting against the outer wall of the blower, a pull rod being rotatably provided at the top of the fixing sleeve, a push rod being rotatably connected at the top of the pull rod, multiple sets of pull rods and push rods, a locking block being fixedly provided on the inner side of each set of push rods, a locking groove being provided on the outer wall of the plug rod, multiple sets of locking grooves being provided and abutting against each set of locking blocks, an abutting plate being abutting at the top of the plug rod, the abutting plate being rotatably connected to the top of the multiple sets of push rods, and a limiting sleeve being slidably provided on the outer wall of the fixing sleeve, the limiting sleeve abutting against the outer wall of the multiple sets of pull rods.

[0005] The present invention is further configured such that a mating sleeve is fixedly provided on the bottom surface of the limiting sleeve, a rotating sleeve is rotatably provided on the outer wall of the fixed sleeve, an arc-shaped groove is provided on the outer wall of the rotating sleeve, and multiple sets of arc-shaped grooves are provided. A slider is fixedly provided on the outer wall of the mating sleeve, and multiple sets of sliders are provided and are slidably connected to multiple sets of arc-shaped grooves respectively. By rotating the rotating sleeve, the arc-shaped grooves are driven to cooperate with the sliders to realize the rapid movement control of the limiting sleeve. The operator only needs to rotate the rotating sleeve to simultaneously control the locking and unlocking states of multiple sets of limiting points, which simplifies the operation process and improves the response speed and reliability of the locking mechanism.

[0006] The present invention is further configured such that a tension spring is provided between the abutment plate and the fixing sleeve. Multiple sets of tension springs are provided, and the elastic restoring force of multiple sets of tension springs provides a continuous reset driving force for the abutment plate, ensuring that the card block can automatically and quickly disengage from the card slot when unlocking, thereby realizing the automatic pop-out of the fan. This avoids the jamming phenomenon when manually pulling out the card, and improves the convenience and efficiency of the disassembly operation.

[0007] The present invention is further configured such that a positioning strip is fixedly provided on the inner side of the fixing sleeve, and a positioning groove is provided on the outer wall of the insertion rod. Multiple sets of positioning strips and positioning grooves are provided and slidably connected. The rotation and radial displacement of the insertion rod are restricted by the guiding cooperation of the positioning strip embedded in the positioning groove, ensuring that the insertion rod maintains a precise axial movement trajectory during insertion and removal, thereby improving the positioning accuracy and fixing stability of the fan installation.

[0008] The present invention is further configured such that a guide block is fixedly provided on the inner side of the limiting sleeve, and a guide groove is provided on the outer wall of the fixed sleeve. Multiple sets of guide blocks and guide grooves are provided and slidably connected. The axial movement trajectory of the limiting sleeve is guided by the precise sliding of the guide block along the guide groove, which prevents the limiting sleeve from tilting or getting stuck during the movement, ensuring uniform contact and reliable limiting of the limiting sleeve with the pull rod, and extending the service life of the limiting mechanism.

[0009] The present invention is further configured such that all of the multiple sets of sliders are arc-shaped and are slidably connected to multiple sets of arc-shaped grooves respectively. The curved surface contact between the arc-shaped slider and the arc-shaped groove increases the contact area and reduces the contact stress, thereby reducing the wear rate between the slider and the arc-shaped groove. At the same time, it allows the slider to slide smoothly along the arc-shaped groove when the rotating sleeve rotates, improving the operating feel and the durability of the mechanism.

[0010] The present invention is further configured such that each of the multiple sets of the blower fan outer wall is provided with a socket, and the socket is provided in multiple sets and is respectively connected to multiple sets of plug rods. The multi-point connection between the multiple sets of sockets and plug rods realizes the precise positioning and stable support of the fan, disperses the fan vibration load and improves the reliability of the installation connection, ensuring that the fan will not loosen or be damaged due to excessive force at a single point during long-term operation.

[0011] The present invention is further configured such that dustproof nets are connected to the outer sides of the multiple sets of blowers. The dustproof nets effectively block dust and debris from entering the fan, protect the fan blades and motor from pollution and wear, extend the service life of the fan, and prevent foreign objects from being sucked into the cabinet and affecting the normal operation of the power distribution equipment, thereby improving the reliability and safety of the overall system.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides an AC low-voltage distribution cabinet that accelerates internal gas flow, and has the following beneficial effects: 1. By using a plug-in installation method with a fixed rod on the outer wall of the cabinet and a fan socket, the operator only needs to align the fan socket with the rod for initial positioning. Then, the fixing sleeve is inserted, and the pull rod drives the push rod to automatically lock the locking block into the rod slot. The entire installation process requires no tools and is simple and quick. The installation time for a single fan is greatly reduced. It is especially suitable for application scenarios that require frequent adjustment of fan positions according to the layout of equipment and heat distribution inside the cabinet. Operators can quickly rearrange multiple sets of fans to optimize airflow organization and ensure that the airflow is accurately directed to high-temperature areas to achieve the best heat dissipation effect. It effectively solves the problems of fixed position and uneven heat dissipation caused by traditional bolt fixing methods, significantly improves the heat dissipation efficiency and thermal management flexibility of the distribution cabinet, and reduces the risk of equipment failure due to poor heat dissipation.

[0013] 2. The system employs a quick-locking mechanism with a locking block and a locking slot, along with a limiting sleeve that abuts the pull rod. When maintenance personnel need to disassemble the fan for cleaning, maintenance, or troubleshooting, they only need to rotate the rotating sleeve to drive the slider through the arc groove, causing the limiting sleeve to release the pull rod. The spring force then automatically pulls the abutment plate, disengaging the locking block from the slot. The fan can then be pulled out directly to complete the disassembly. The disassembly and assembly process requires no special tools such as screwdrivers, and the operation steps are simple. The disassembly and assembly time for a single fan is significantly reduced, effectively decreasing maintenance workload and downtime. It also avoids human errors such as improper installation or loose fastening due to complex operations, improving the convenience and reliability of maintenance operations. It is particularly suitable for maintenance scenarios that require frequent cleaning of dust filters and replacement of fans.

[0014] 3. Through the distributed locking mechanism of multiple sets of locking blocks and the dual limiting sleeve, the continuous elastic force provided by the tension spring forms a stable locking force, effectively resisting the periodic impact load caused by the continuous vibration of the fan and the pulsation of airflow. This ensures that the fan is reliably fixed for a long time and will not shift or fall off due to vibration, thus guaranteeing the stability of the heat dissipation airflow and the continuity of the heat dissipation effect. At the same time, the guiding cooperation between the positioning strip and the positioning groove ensures the precise positioning of the insertion rod, and the sliding connection between the guide block and the guide groove provides accurate axial movement guidance for the limiting sleeve. This extends the service life of the fixing mechanism under long-term operating conditions, reduces the frequency of regular inspection and tightening maintenance, improves the reliability and maintenance-free operation capability of the distribution cabinet, and avoids the risk of damage to electrical equipment inside the cabinet or safety hazards caused by the fan falling off. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an AC low-voltage distribution cabinet that accelerates internal gas flow according to this utility model. Figure 2 This is a structural diagram of the blower fan in the disassembled state in this utility model; Figure 3 This is a schematic diagram of the fixed sleeve snap-fit ​​structure in this utility model; Figure 4 This is a cross-sectional view of the fixed sleeve and the insertion rod in the snap-fit ​​state of this utility model; Figure 5 This is a cross-sectional view of the fixing sleeve in this utility model.

[0016] In the diagram: 1. Cabinet; 2. Ventilation hole; 3. Fan; 4. Insert rod; 5. Fixing sleeve; 6. Pull rod; 7. Push rod; 8. Locking block; 9. Locking groove; 10. Abutment plate; 11. Limiting sleeve; 12. Mating sleeve; 13. Rotating sleeve; 14. Arc groove; 15. Slider; 16. Tension spring; 17. Positioning strip; 18. Positioning groove; 19. Guide block; 20. Guide groove; 21. Insertion hole; 22. Dustproof net. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5 A low-voltage AC distribution cabinet for accelerating internal gas flow includes a cabinet body 1. A ventilation hole 2 is provided on the top surface of the cabinet body 1. A blower 3 is provided on the outer side of the cabinet body 1. Multiple sets of blowers 3 are provided, and multiple sets of fixing mechanisms are provided on the outer side of each set of blowers 3. Each fixing mechanism includes a plug rod 4 and a fixing sleeve 5. The plug rod 4 is fixed to the outer wall of the cabinet body 1 and plugged into the blower 3. The fixing sleeve 5 is plugged into the top of the plug rod 4, and its bottom surface abuts against the outer wall of the blower 3. A pull rod 6 is rotatably provided at the top of the fixing sleeve 5. A push rod 7 is rotatably connected to the top of the pull rod 6. Multiple sets of pull rods 6 and push rods 7 are provided. A locking block 8 is fixed to the inner side of each set of push rods 7. A locking groove 9 is provided on the outer wall of the plug rod 4. Multiple sets of locking grooves 9 abut against multiple sets of locking blocks 8. An abutting plate 10 abuts against the top of the plug rod 4. The abutting plate 10 is rotatably connected to the top of the multiple sets of push rods 7. A limiting sleeve 11 is slidably provided on the outer wall of the fixing sleeve 5, and the limiting sleeve 11 abuts against the outer wall of the multiple sets of pull rods 6.

[0021] The outer wall of each of the multiple sets of blower fans 3 is provided with a socket 21, and the socket 21 is provided in multiple sets and is respectively connected to multiple sets of plug rods 4.

[0022] Dustproof nets 22 are connected to the outer sides of multiple sets of blower fans 3.

[0023] In this embodiment, during use, the multiple sets of insertion holes 21 on the outer wall of the blower fan 3 are respectively inserted into the multiple sets of insertion rods 4. Then, the fixing sleeve 5 is inserted into the insertion rod 4. The top of the insertion rod 4 pushes the abutment sleeve and stretches the multiple sets of tension springs 16. At this time, the multiple sets of pull rods 6 pull the push rod 7 to push the locking block 8 into the locking groove 9. Then, the rotating sleeve 13 is rotated to push the slider 15 through the multiple sets of arc grooves 14, so that the multiple sets of sliders 15 drive the mating sleeve 12 to push the limiting sleeve 11 to abut against the outer wall of the multiple sets of pull rods 6, thereby limiting the multiple sets of pull rods 6. At this time, the fixing sleeve 5 abuts against the outer wall of the blower fan 3. The fixing can be completed by operating the multiple sets of blower fans 3 in sequence. Fresh air is blown into the cabinet 1 by the multiple sets of blower fans 3, so that the air in the cabinet 1 is discharged through the multiple sets of ventilation holes 2.

[0024] Please see Figures 3-5As a further implementation of the overall equipment: the bottom surface of the limiting sleeve 11 is fixedly provided with a mating sleeve 12, the outer wall of the fixed sleeve 5 is rotatably provided with a rotating sleeve 13, the outer wall of the rotating sleeve 13 is provided with an arc-shaped groove 14, and multiple sets of arc-shaped grooves 14 are provided. The outer wall of the mating sleeve 12 is fixedly provided with a slider 15, and multiple sets of sliders 15 are provided and are slidably connected to multiple sets of arc-shaped grooves 14 respectively.

[0025] A tension spring 16 is provided between the abutment plate 10 and the fixing sleeve 5, and multiple sets of tension springs 16 are provided. The inner side of the fixed sleeve 5 is fixedly provided with a positioning strip 17, and the outer wall of the insertion rod 4 is provided with a positioning groove 18. The positioning strip 17 and the positioning groove 18 are provided in multiple sets and are slidably connected.

[0026] A guide block 19 is fixedly provided on the inner side of the limiting sleeve 11, and a guide groove 20 is provided on the outer wall of the fixing sleeve 5. Multiple sets of guide blocks 19 and guide grooves 20 are provided and are slidably connected.

[0027] Multiple sets of sliders 15 are all set in an arc shape and are slidably connected to multiple sets of arc grooves 14 respectively.

[0028] More specifically, when it is necessary to disassemble the blower fan 3, the rotating sleeve 13 slides with the slider 15 through the arc groove 14, thereby causing the engaging sleeve 12 to pull the limiting sleeve 11 to release the contact with the multiple sets of pull rods 6. The multiple sets of tension springs 16 pull the abutment plate 10, thereby causing the multiple sets of push rods 7 to drive the locking block 8 to disengage from the locking groove 9, and causing the fixing sleeve 5 to release the contact with the outer wall of the blower fan 3. Then the blower fan 3 can be disassembled by separating it from the multiple sets of insert plates.

[0029] In summary, during use or operation of the overall equipment: When in use, the multiple sets of insertion holes 21 on the outer wall of the blower fan 3 are respectively inserted into the multiple sets of insertion rods 4. Then, the fixing sleeve 5 is inserted into the insertion rod 4. The top of the insertion rod 4 pushes the abutment sleeve and stretches the multiple sets of tension springs 16. At this time, the multiple sets of pull rods 6 pull the push rod 7 to push the locking block 8 into the locking groove 9. Then, the rotating sleeve 13 is rotated to push the slider 15 through the multiple sets of arc grooves 14, so that the multiple sets of sliders 15 drive the mating sleeve 12 to push the limiting sleeve 11 to abut against the outer wall of the multiple sets of pull rods 6, thereby limiting the multiple sets of pull rods 6. At this time, the fixing sleeve 5 abuts against the outer wall of the blower fan 3. The fixing can be completed by operating the multiple sets of blower fans 3 in sequence. Fresh air is blown into the cabinet 1 by the multiple sets of blower fans 3, so that the air in the cabinet 1 is discharged through the multiple sets of ventilation holes 2.

[0030] When it is necessary to disassemble the blower fan 3, the rotating sleeve 13 slides with the slider 15 through the arc groove 14, so that the engaging sleeve 12 pulls the limiting sleeve 11 to release the contact with the multiple sets of pull rods 6. The multiple sets of tension springs 16 pull the abutment plate 10, so that the multiple sets of push rods 7 drive the locking block 8 to disengage from the locking groove 9, and the fixing sleeve 5 releases the contact with the outer wall of the blower fan 3. Then the blower fan 3 can be disassembled by separating it from the multiple sets of insert plates.

[0031] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An AC low-voltage distribution cabinet for accelerating internal gas flow, comprising a cabinet (1), characterized in that: The cabinet (1) has ventilation holes (2) on its top surface. A blower (3) is provided on the outside of the cabinet (1). Multiple sets of blowers (3) are provided, and each set of blowers (3) has multiple fixing mechanisms on its outside. Each fixing mechanism includes a rod (4) and a fixing sleeve (5). The rod (4) is fixed to the outer wall of the cabinet (1) and inserted into the blower (3). The fixing sleeve (5) is inserted into the top of the rod (4) and its bottom surface abuts against the outer wall of the blower (3). A pull rod (6) is rotatably provided at the top of the fixing sleeve (5). The rotating connection is provided with a push rod (7), and the pull rod (6) and the push rod (7) are provided with multiple sets. The inner side of each set of push rods (7) is fixed with a locking block (8). The outer wall of the insertion rod (4) is provided with a locking groove (9). The locking groove (9) is provided with multiple sets and abuts against the locking blocks (8) respectively. The top of the insertion rod (4) is abutted with a stop plate (10). The stop plate (10) is rotatably connected to the top of the multiple sets of push rods (7). The outer wall of the fixed sleeve (5) is slidably provided with a limiting sleeve (11). The limiting sleeve (11) abuts against the outer wall of the multiple sets of pull rods (6).

2. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 1, characterized in that: The bottom surface of the limiting sleeve (11) is fixedly provided with a mating sleeve (12), the outer wall of the fixed sleeve (5) is rotatably provided with a rotating sleeve (13), the outer wall of the rotating sleeve (13) is provided with an arc groove (14), the arc groove (14) is provided in multiple sets, the outer wall of the mating sleeve (12) is fixedly provided with a slider (15), the slider (15) is provided in multiple sets and is slidably connected to multiple sets of arc grooves (14).

3. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 2, characterized in that: A tension spring (16) is provided between the abutment plate (10) and the fixing sleeve (5), and multiple sets of tension springs (16) are provided.

4. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 3, characterized in that: The inner side of the fixed sleeve (5) is fixedly provided with a positioning strip (17), and the outer wall of the insertion rod (4) is provided with a positioning groove (18). The positioning strip (17) and the positioning groove (18) are provided in multiple sets and are slidably connected.

5. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 4, characterized in that: The inner side of the limiting sleeve (11) is fixedly provided with a guide block (19), and the outer wall of the fixed sleeve (5) is provided with a guide groove (20). The guide block (19) and the guide groove (20) are provided with multiple sets and are slidably connected.

6. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 5, characterized in that: multiple sets The sliders (15) are all set to be arc-shaped and are slidably connected to multiple sets of arc-shaped grooves (14).

7. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 6, characterized in that: multiple sets The outer wall of the blower (3) is provided with a socket (21), and the socket (21) is provided in multiple sets and is respectively connected to multiple sets of plug rods (4).

8. The AC low-voltage distribution cabinet for accelerating internal gas flow according to claim 7, characterized in that: Each of the multiple sets of blower fans (3) is equipped with a dustproof net (22) on its outer side.

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