A wind pressure control cabinet

Abstract

The utility model discloses a kind of wind pressure control cabinet, belong to electrical control cabinet technical field.The wind pressure control cabinet includes control cabinet and fixed in its inside built-in frame;It further includes a set of sensing connection component, the component includes fixed in built-in frame sensing terminal, telescopic wheel rotationally connected in sensing terminal, and one end is connected sensing terminal and is wound on telescopic wheel, the flexible connection cable of other end connection sensing connection end.The utility model through above-mentioned structure, so that sensing connection end can be according to the need of field freely telescopic, solved the wiring inflexible, cable redundancy or the problem of not enough in prior art due to cable length fixed, greatly improve the flexibility and convenience of installation, so that wiring process is fast, neat.

Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet technology, and in particular to a wind pressure control cabinet. Background Technology

[0002] As a key piece of equipment in industrial automation and environmental control systems, the wind pressure control cabinet's main function is to integrate various control components and precisely regulate actuators such as fans and valves based on wind pressure signals collected by external sensors. To achieve this function, the control cabinet must establish a stable and reliable signal connection with a remotely installed wind pressure sensor.

[0003] In existing conventional installation practices, this signal connection is usually achieved by pre-laying a fixed length of signal cable. The installer then needs to run the cable from the terminal blocks inside the control cabinet to the designated sensor installation point.

[0004] However, in actual engineering projects, the physical distance between the control cabinet's installation location and the optimal monitoring point of the wind pressure sensor is often variable and difficult to predict accurately. This often leads to a mismatch between the pre-prepared fixed-length cable and the actual needs on site. If the cable is too long, the excess can only be haphazardly coiled and piled up inside or beside the cabinet, not only taking up valuable space and appearing messy, but also potentially interfering with later maintenance. Conversely, if the cable is insufficient in length, time-consuming and laborious cable splicing or re-laying is required, which not only seriously affects installation efficiency but may also introduce the risk of signal attenuation or interruption due to increased connection points, reducing the reliability of the entire control system.

[0005] Therefore, this utility model proposes a wind pressure control cabinet to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a wind pressure control cabinet, which aims to improve the problems of inflexible external sensor connection wiring and cable redundancy or insufficiency caused by mismatched lengths in the existing wind pressure control cabinet.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a wind pressure control cabinet, comprising: a control cabinet, and an internal frame fixedly connected inside the control cabinet; and a set of sensor connection components; The sensing connection assembly includes a sensing terminal, a telescopic wheel rotatably connected to the sensing terminal, a flexible connecting cable, and a sensing connection end; one end of the flexible connecting cable is electrically connected to the sensing terminal via an adapter, its main body is wound around the telescopic wheel, and the other end is connected to the sensing connection end. Furthermore, the sensing terminal of the sensing connection assembly is fixed to the side wall of the built-in frame. This combination allows the sensing terminal to be easily pulled out or retracted from the control cabinet by the rotation of the telescopic wheels, in order to adapt to connection requirements of different distances.

[0008] Preferably, the control cabinet has heat dissipation holes on its side wall, and a cooling fan is detachably installed at the heat dissipation holes. The cooling fan is fixed to the control cabinet by a quick-installation mechanism, which includes a connecting frame fixed to the cooling fan, a limiting plate fixed to the inner wall of the control cabinet and having a guide structure, and a pin slidably disposed on the connecting frame. The pin can slide along the guide structure of the limiting plate and engage with it.

[0009] Preferably, a sliding shaft is also fixedly connected to the connecting frame, and the outer periphery of the sliding shaft slides against the pin to limit the sliding range of the pin.

[0010] Preferably, the quick-installation mechanism further includes a side plate, on which the cooling fan is fixed, and the side plate is then detachably fixed to the connecting frame.

[0011] Preferably, the guiding structure of the limiting plate is a guide groove opened in the vertical direction, and the end of the pin is inserted into the bottom of the guide groove.

[0012] Preferably, a control switch for controlling the operation of the equipment is also fixedly installed on the built-in frame.

[0013] Preferably, the built-in frame is also fixedly installed with wiring terminals for wiring connections.

[0014] Preferably, the control cabinet door is equipped with a concealed handle.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting a telescopic wheel that is rotatably connected to the sensor terminal, and by winding the sensor connection terminal around the telescopic wheel with a flexible connecting cable, the problem of fixed length of external sensor connection cable of control cabinet in the prior art, which leads to inflexible on-site wiring, cable redundancy or shortage, is solved. The sensor connection terminal can be freely extended and retracted according to actual needs, which greatly improves the flexibility and convenience of on-site installation and makes the wiring process fast and neat.

[0016] 2. In this utility model, by sliding a pin on the connecting bracket for fixing the cooling fan and cooperating with a limiting plate with a guide structure fixed on the cabinet, the weight of the pin is used to achieve sliding self-locking, which solves the problem that tools are required for the installation, fixing or replacement of the cooling fan in the prior art, which is cumbersome and time-consuming. It achieves the technical effect of tool-free quick installation and disassembly of the cooling fan, significantly simplifies the maintenance process, shortens the operation and maintenance time, and reduces the difficulty of operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a wind pressure control cabinet proposed in this utility model; Figure 2 This is a schematic diagram of the internal frame of a wind pressure control cabinet proposed in this utility model; Figure 3 This is a schematic diagram of the cooling fan structure of a wind pressure control cabinet proposed in this utility model; Figure 4 This is a schematic diagram of the telescopic wheel structure of a wind pressure control cabinet proposed in this utility model; Figure 5 This is a schematic diagram of the connecting frame of a wind pressure control cabinet proposed in this utility model.

[0018] Legend: 1. Control cabinet; 2. Ventilation holes; 3. Terminal blocks; 4. Concealed handle; 5. Telescopic wheels; 6. Internal frame; 7. Control switch; 8. Connecting frame; 9. Cooling fan; 10. Side panel; 11. Limit plate; 12. Pin; 13. Sliding shaft; 14. Sensor terminal; 15. Adapter; 16. Sensor connection terminal. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1 to 5 This utility model provides a wind pressure control cabinet, which aims to solve the problems of inflexible external sensor connection wiring and cumbersome maintenance and installation process of cooling fans in the prior art.

[0021] like Figure 1 and Figure 2As shown, the wind pressure control cabinet includes a control cabinet 1 and an internal frame 6 fixedly connected inside the control cabinet 1. The control cabinet 1 provides physical protection space for the internal electrical components. A hidden handle 4 is installed on the cabinet door of the control cabinet 1. Heat dissipation holes 2 are opened on the side wall of the control cabinet 1. The internal frame 6 is used to support and install various functional components. A control switch 7 for controlling the operation of the equipment and a wiring terminal 3 for wiring connection are fixedly installed on the internal frame 6. One of the core aspects of this embodiment is that the wind pressure control cabinet also includes a set of sensor connection components. Specifically, the sensor connection components include a sensor terminal 14 fixed to the side wall of the built-in frame 6, a telescopic wheel 5 rotatably connected to the sensor terminal 14, and a flexible connection cable. One end of the flexible connection cable is electrically connected to the sensor terminal 14 through an adapter 15. The main body of the flexible connection cable is wound around the telescopic wheel 5, and the other end of the flexible connection cable is connected to a sensor connection end 16. When it is necessary to connect to the external wind pressure monitoring and execution parts, the sensor connection end 16 can be pulled outward, and the flexible connection cable unfolds from the telescopic wheel 5. When it is necessary to retract, the flexible connection cable can be rewound by rotating the telescopic wheel 5, thereby retracting the sensor connection end 16 to the vicinity of the control cabinet 1.

[0022] The quick-installation mechanism includes a connecting frame 8 fixed to the cooling fan 9, a limiting plate 11 fixed to the inner wall of the control cabinet 1, and a pin 12 slidably disposed on the connecting frame 8. More specifically, the cooling fan 9 is first fixed to the side plate 10, and the side plate 10 is then detachably fixed to the connecting bracket 8 to form an installation unit. A sliding shaft 13 is also fixedly connected to the connecting bracket 8. The outer periphery of the sliding shaft 1 slides against the pin 12 to physically limit the sliding range of the pin 12. Meanwhile, a guide structure is correspondingly provided on the limiting plate 11. In this embodiment, the guide structure is a guide groove opened in the vertical direction. In the assembled state, the connecting bracket 8 on which the cooling fan 9 is installed is placed at the heat dissipation hole 2. The pin 12 slides down along the guide groove of the limiting plate 11 under the action of gravity until the end of the pin 12 forms a snap-fit ​​with the bottom of the guide groove. This sliding snap-fit ​​structure that uses gravity to self-lock ensures that the cooling fan 9 can be installed securely without any fastening tools.

[0023] In a preferred embodiment, in order to further enhance the stability of the pin 12 during the sliding process and prevent it from shaking or deflecting unnecessarily, a sliding shaft 13 is rotatably connected to the connecting frame 8. The outer periphery of the sliding shaft 13 forms a sliding contact with the pin 12. When the pin 12 slides up and down, the sliding shaft 13 can effectively constrain and limit its movement trajectory. As another preferred embodiment, in order to facilitate the overall installation and replacement of the cooling fan 9, the quick-installation mechanism also includes a side plate 10. The cooling fan 9 is pre-fixed on the side plate 10, and then the side plate 10 is detachably fixed to the connecting frame 8 to form an integrated fan module, which facilitates overall operation. As a further optimization of the quick-release mechanism, in order to provide a clear and reliable sliding path for the pin 12, the guide structure set on the limiting plate 11 is specifically a guide groove opened in the vertical direction. The end size of the pin 12 is adapted to the width of the guide groove, and when it slides to the lowest point, it is locked into the bottom of the guide groove to achieve precise locking. Furthermore, in order to improve the basic functions of the wind pressure control cabinet, a control switch 7 is also fixedly installed on the built-in frame 6 to control the on / off of the electrical system of the entire equipment. A terminal block 3 is also fixedly installed on the built-in frame 6 as a connection hub for various power lines and signal lines. At the same time, a hidden handle 4 is installed on the cabinet door of the control cabinet 1 to facilitate opening and closing the cabinet door while maintaining the flatness of the cabinet appearance.

[0024] Working principle: When deploying external wind pressure signals, the operator can directly pull the sensor connection end 16. The sensor connection end 16 drives the flexible connection cable to unfold from the telescopic wheel 5. The telescopic wheel 5 rotates freely on the sensor terminal 14 until the sensor connection end 16 reaches the target monitoring or execution location. This process does not require pre-measuring distance or preparing a cable of a specific length. When the connection task is completed or when it needs to be retracted, the telescopic wheel 5 is rotated in the opposite direction, and the flexible connection cable is rewound, retracting the sensor connection end 16. Through the synergistic action of the telescopic wheel 5, the sensor terminal 14, the adapter 15, and the sensor connection end 16, this utility model solves the problems of inflexible on-site wiring and redundant and messy cables caused by the fixed cable length in the prior art.

[0025] When installing or maintaining the cooling fan 9, the operator aligns the connecting bracket 8, which holds the cooling fan 9, with the limiting plate 11 on the inner wall of the control cabinet 1. Under the action of gravity, the pin 12 on the connecting bracket 8 will automatically slide down along the guide groove on the limiting plate 11. The entire sliding process is stably limited by the sliding shaft 13 until the end of the pin 12 is inserted into the bottom of the guide groove, completing the self-locking fixation. When disassembling, simply lift the pin 12 upwards to unlock and remove the entire fan module. Through this structural cooperation between the connecting bracket 8, the limiting plate 11, the pin 12, and the sliding shaft 13, this utility model solves the problem that the installation and disassembly of the cooling fan in the prior art requires tools, is cumbersome, and time-consuming.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind pressure control cabinet, comprising: A control cabinet (1) is provided with heat dissipation holes (2). And, a built-in frame (6) fixedly connected to the control cabinet (1); Its features are, The built-in frame (6) is equipped with a sensor terminal (14), and a telescopic wheel (5) is rotatably connected to the sensor terminal (14). A flexible connecting cable is wound on the telescopic wheel (5), and the end of the flexible connecting cable is connected to a sensor terminal (16). and, A cooling fan (9) is detachably installed at the heat dissipation hole (2), and the cooling fan (9) is fixed by a connecting bracket (8); a pin (12) is slidably connected on the connecting bracket (8), and a limit plate (11) is fixed on the inner wall of the control cabinet (1). The pin (12) slides along the limit plate (11) and engages with the limit plate (11).

2. The wind pressure control cabinet according to claim 1, characterized in that: A sliding shaft (13) is also fixedly connected to the connecting frame (8), and the sliding shaft (13) abuts against the pin (12) to limit its movement.

3. The wind pressure control cabinet according to claim 1, characterized in that: The cooling fan (9) is fixed on the side plate (10), and the side plate (10) is detachably connected to the connecting frame (8).

4. The wind pressure control cabinet according to claim 1, characterized in that: The limiting plate (11) is provided with a guide groove for guiding the pin (12).

5. A wind pressure control cabinet according to claim 1, characterized in that: The sensing terminal (14) is connected to the flexible connecting cable via an adapter (15).

6. The wind pressure control cabinet according to claim 1, characterized in that: The sensing terminal (14) is fixedly connected to the side of the built-in frame (6).

7. A wind pressure control cabinet according to claim 1, characterized in that: The built-in frame (6) is also equipped with a control switch (7) and a wiring terminal (3).

8. A wind pressure control cabinet according to claim 1, characterized in that: The control cabinet (1) has a concealed handle (4) installed on its door.

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