An extractable fan module and power distribution cabinet

Abstract

The utility model relates to the field of power distribution cabinet heat dissipation, specifically provides a kind of fan module and power distribution cabinet that can be drawn, including the mounting plate being provided with fan, mounting plate is slidably arranged on side support frame by sliding mechanism, side support frame is fixedly arranged below power distribution cabinet circuit breaker, when mounting plate slides on side support frame, including drawing state and insertion state, when mounting plate is in insertion state, fan is directly opposite the pile head of busbar;When mounting plate is in drawing state, mounting plate is drawn from power distribution cabinet;The utility model sets fan to below circuit breaker, directly to the pile head of busbar and blows, the pile head of busbar is directly blown and heat-dissipating, effectively avoid the accumulation of heat at switch pile head;Meanwhile, mounting plate can be drawn from power distribution cabinet by sliding structure, it needs to open cabinet door to maintain replacement to fan as conventional power distribution cabinet, since not opening cabinet door, power distribution cabinet also does not need to power off and stop, effectively guarantee the normal operation of power distribution system.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation in power distribution cabinets, and specifically provides a retractable fan module and a power distribution cabinet. Background Technology

[0002] Common applications of low-voltage, high-current systems include power distribution, industrial equipment, and data centers. In these scenarios, when a large current flows through a conductor, heat is generated due to resistance, especially at higher current densities. This is where cooling fans become crucial; they use forced airflow to remove heat and maintain equipment operation within a safe temperature range.

[0003] For distribution cabinets, traditional cooling fans are fixed at the back of the cabinet door to dissipate heat from the entire cabinet. However, this cooling method, due to the wiring layout, obstructs airflow inside the cabinet. During prolonged operation, the heat generated at the terminals of the circuit breaker busbars (which act as conductors) cannot be effectively dissipated, leading to heat buildup at the busbar terminals and causing the cabinet temperature to exceed safe limits, posing a safety hazard. Furthermore, maintenance and replacement of the cooling fans cannot be performed while the power is on; the cabinet door must be shut down and the power supply deactivated, which is extremely inconvenient and can affect the operation of the entire power system. Therefore, ensuring effective heat dissipation at the busbar terminals and efficient maintenance and replacement of cooling fans are challenges facing the industry. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a retractable fan module located in the middle of the distribution cabinet, specifically designed to dissipate heat at the busbar terminals. The specific technical solution is as follows:

[0005] A retractable fan module includes a mounting plate for a fan. The mounting plate is slidably mounted on a side support frame via a sliding mechanism. The side support frame is fixedly mounted below a circuit breaker in a distribution cabinet. When the mounting plate slides on the side support frame, it includes a retracted state and an inserted state. When the mounting plate is in the inserted state, the fan is directly opposite the head of the busbar. When the mounting plate is in the retracted state, the mounting plate extends out of the distribution cabinet.

[0006] In this design, the fan is mounted on the mounting plate and then moved below the circuit breaker via a side support frame, directly blowing air onto the busbar terminals. This provides direct cooling to the busbar terminals, effectively preventing heat accumulation at the switch terminals. Simultaneously, the sliding structure allows the mounting plate to be pulled out of the distribution cabinet, eliminating the need to open the cabinet door for fan maintenance or replacement as with conventional distribution cabinets. Since the cabinet door is not opened, the distribution cabinet does not need to be powered off or shut down, effectively ensuring the normal operation of the power distribution system.

[0007] Preferably, the side support frame includes symmetrically arranged two side beams, with a cross brace between the side beams. When the mounting plate is in the insertion position, the mounting plate abuts against the cross brace. The cross brace prevents the mounting plate from going too far into the distribution cabinet, limits the sliding of the mounting plate, and ensures the safety of other components in the distribution cabinet.

[0008] Preferably, it also includes secondary plug-in components, which include mutually compatible static plug-in components and dynamic plug-in components. The static plug-in component is fixedly mounted on the cross brace beam and electrically connected to the main circuit of the distribution cabinet. The dynamic plug-in component is fixedly mounted on the mounting plate and electrically connected to the fan on the mounting plate. When the mounting plate is in the insertion position, the dynamic plug-in component and the static plug-in component cooperate with each other.

[0009] In this design, the fan can be powered through the cooperation of the moving and stationary plugs when the mounting plate is in the inserted position. There is no need to worry about safety risks caused by wires being dragged inside the cabinet. When the mounting plate is pulled out of the cabinet, maintenance or repair is required. When the fan is pulled out, the moving and stationary plugs automatically separate, de-energizing the fan. After the fan is maintained, as the mounting package is pushed back in, the moving and stationary plugs automatically reconnect, powering the fan. Maintenance personnel do not need to manually turn the power on and off, further ensuring safety during equipment maintenance.

[0010] Preferably, a first fixing plate is provided on the side beam, and a first hole is provided on the fixing plate. A second fixing plate is provided on the mounting plate, and a second hole is provided on the second fixing plate. When the mounting plate is in the insertion state, the first fixing plate and the second fixing plate are in contact with each other, and the first hole and the second hole are concentric.

[0011] In this solution, when the mounting plate is in the inserted state, the positioning structure is inserted into the concentric first and second holes to position the mounting plate in the inserted state, preventing the mounting package from being accidentally pulled out and ensuring the normal operation of the fan.

[0012] Preferably, the mounting plate is further provided with a third limiting plate, which is located at the edge of the mounting plate. When the mounting plate is in the withdrawn state, the third limiting plate abuts against the first fixing plate.

[0013] In this solution, the maximum extent to which the mounting plate can be pulled out of the cabinet is limited by the third limiting plate, thus preventing the mounting plate from being pulled out directly.

[0014] Preferably, the sliding mechanism includes a damping guide rail on the side beam and slide beams disposed on both sides of the mounting plate, wherein the damping guide rail and the slide beams are adapted to each other.

[0015] In this design, the damping guide rail makes the sliding of the mounting plate smoother. At the same time, the mounting plate is slidably mounted on the damping guide rail via a sliding beam, making it easy to pull out the mounting plate directly, thus allowing for direct replacement of the mounting plate and the fan on it.

[0016] Preferably, the mounting plate is provided with a pull-out handle.

[0017] A power distribution cabinet includes a cabinet body, in which a circuit breaker and a busbar connected to the circuit breaker are installed. The cabinet body is characterized by further including the aforementioned retractable fan module and a cavity in which the retractable fan module is installed. The cavity is located directly below the power distribution cabinet, and the side support is fixedly installed in the cavity.

[0018] In this solution, the distribution cabinet is equipped with a removable air outlet module that can directly blow air onto the heat-generating switch terminals for heat dissipation, resulting in excellent heat dissipation. At the same time, the design of the air outlet module allows the cabinet to be directly pulled out, so the fan can be maintained and replaced without disconnecting the power and opening the cabinet door.

[0019] Preferably, the busbar includes an upper pile and a lower pile, wherein the lower pile has a vertical pile head and the upper pile has a horizontal pile head. Setting the lower pile to a vertical pile head allows the cooling air output by the fan to pass through it with minimal obstruction, ensuring that the airflow can pass through the lower pile to cool the upper pile; while the upper pile having a horizontal pile head provides a larger surface area exposed to the wind, resulting in better cooling efficiency.

[0020] Preferably, the top of the cabinet is provided with heat dissipation holes, which allow hot air to be discharged from the top of the cabinet, forming an air duct from bottom to top.

[0021] The beneficial effects of this utility model are as follows: The fan is mounted on the mounting plate and then moved below the circuit breaker via the side support frame, directly blowing air onto the busbar terminals to dissipate heat and effectively prevent heat accumulation at the switch terminals. At the same time, the mounting plate can be pulled out of the distribution cabinet through the sliding structure, eliminating the need to open the cabinet door for fan maintenance and replacement as with conventional distribution cabinets. Since the cabinet door is not opened, the distribution cabinet does not need to be powered off or shut down, effectively ensuring the normal operation of the power distribution system. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is a top view of the inserted state of the retractable fan module of this utility model.

[0025] Figure 3 This is a top view of the retractable fan module of this utility model in its retracted state.

[0026] Figure 4 This is a schematic diagram of the sliding mechanism of this utility model.

[0027] In the above figures, the corresponding reference numerals are as follows:

[0028] 1-Cabinet, 2-Circuit breaker, 3-Busbar, 31-Upper pile, 32-Lower pile, 4-Side support frame, 41-Side beam, 42-Horizontal support beam, 5-Fan, 6-Mounting plate, 7-Secondary plug-in, 71-Moving plug-in, 72-Static plug-in, 8-First fixing plate, 9-Second fixing plate, 10-Third limit plate, 11-Pull handle, 12-Sliding beam, 13-Damping guide rail. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of this utility model.

[0030] Example 1:

[0031] A retractable fan module, such as Figure 2 and Figure 3 As shown, the package includes a mounting plate 6 for the fan 5. The mounting plate 6 is slidably mounted on the side support frame 4 via a sliding mechanism. The side support frame 4 is fixedly mounted below the circuit breaker 2 of the distribution cabinet. When the mounting plate 6 slides on the side support frame 4, it includes a withdrawn state and an inserted state. When the mounting plate 6 is in the inserted state, the fan 5 is directly opposite the head of the busbar 3. When the mounting plate 6 is in the withdrawn state, the mounting plate 6 extends out of the distribution cabinet.

[0032] Specifically, the side support frame 4 includes two symmetrically arranged side beams 41, with a cross brace 42 between the side beams 41. The cross brace 42 can be bolted to the side beams 41 after drilling, or it can be directly welded. When the mounting plate 6 is in the insertion position, the mounting plate 6 abuts against the cross brace 42. The cross brace 42 prevents the mounting plate 6 from going too deep into the distribution cabinet, limiting the sliding of the mounting plate 6 and ensuring the safety of other components in the distribution cabinet. Furthermore, secondary inserts 7 are provided on the mounting plate 6 and the side support frame 4. The secondary inserts 7 include mutually compatible static inserts 72 and moving inserts 71. The static insert 72 is fixedly mounted on the cross brace 42 and electrically connected to the main circuit of the distribution cabinet; the moving insert 71 is fixedly mounted on the mounting plate 6 and electrically connected to the fan 5 on the mounting plate 6. When the mounting plate 6 is in the insertion position, the moving insert 71 and the static insert 72 cooperate with each other. When the mounting plate 6 is in the inserted position, the fan 5 can be powered through the cooperation of the moving plug 71 and the stationary plug 72, eliminating concerns about safety risks caused by dragging wires inside the cabinet. Furthermore, when the mounting plate 6 is pulled out of the cabinet 1 for inspection or maintenance, the moving plug 71 and the stationary plug 72 automatically separate, de-energizing the fan 5. After maintenance, as the mounting package is pushed in, the moving plug 71 and the stationary plug 72 automatically reconnect, powering the fan 5. Maintenance personnel do not need to manually turn the power on and off, further ensuring safety during equipment maintenance.

[0033] In this embodiment, the fan 5 is mounted on the mounting plate 6 and then moved below the circuit breaker 2 via the side support 4, directly blowing air onto the terminals of the busbar 3 to dissipate heat and effectively prevent heat accumulation at the terminals. At the same time, the mounting plate 6 can be pulled out of the distribution cabinet through the sliding structure, eliminating the need to open the cabinet door for maintenance and replacement of the fan 5 as is required in conventional distribution cabinets. Since the cabinet door is not opened, the distribution cabinet does not need to be powered off or shut down, effectively ensuring the normal operation of the power distribution system.

[0034] Example 2:

[0035] Based on Example 1, to prevent the installation package from being easily pulled or displaced due to vibration, such as Figure 2 and Figure 3As shown, a first fixing plate 8 is provided on the side beam 41, with a first hole on the fixing plate. A second fixing plate 9 is provided on the mounting plate 6, with a second hole on the second fixing plate 9. When the mounting plate 6 is in the inserted state, the first fixing plate 8 and the second fixing plate 9 are in contact with each other, and the first hole and the second hole are concentric. When the mounting plate 6 is in the inserted state, a positioning structure is inserted into the concentric first hole and the second hole. When the first fixing plate 8 and the second fixing plate 9 are vertically set, the positioning structure can be a bolt and nut; when the first fixing plate 8 and the second fixing part are horizontally set, the positioning structure can be a pin. When the first hole and the second hole are concentric, inserting the pin will position the mounting plate 6 in the inserted state, preventing the mounting package from being accidentally pulled out and ensuring the normal operation of the fan 5. Of course, depending on the actual situation, the first fixing plate 8 and the second fixing plate 9 can be correspondingly set on both sides of the mounting plate 6, or only one set can be set on one side.

[0036] Furthermore, a third limiting plate 10 is also provided on the mounting plate 6. The third limiting plate 10 is located at the edge of the mounting plate 6. When the mounting plate 6 is in the pulled-out state, the third limiting plate 10 abuts against the first fixing plate 8. The third limiting plate 10 limits the maximum extent to which the mounting plate 6 can be pulled out of the cabinet 1, preventing the mounting plate 6 from being pulled out directly. It should be noted that the first fixing plate 8 can be designed as a rotating structure, allowing the first fixing plate 8 to make way for the third limiting plate 10 by rotating. When it is necessary to directly replace the entire fan 5 module, it is only necessary to rotate the first fixing plate 8 to directly separate the old mounting plate 6 and the old fan 5 from the cabinet 1.

[0037] Example 3:

[0038] A type of power distribution cabinet, such as Figure 1 As shown, the distribution cabinet includes a cabinet 1, in which a circuit breaker 2 and a busbar 3 connected to the circuit breaker 2 are installed. It also includes a removable fan module as described in the previous embodiment and a cavity housing the removable fan module. The cavity is located directly below the distribution cabinet, and the side support frame 4 is fixedly installed within the cavity. The removable exhaust module in the cabinet 1 allows for direct airflow to the heat-generating switch terminals, providing excellent heat dissipation. Furthermore, the design allows the cabinet 1 to be directly removed, enabling maintenance and replacement of the fan 5 without power interruption or opening the cabinet door.

[0039] Furthermore, the busbar 3 includes an upper pile 31 and a lower pile 32, wherein the lower pile 32 has a vertical pile head and the upper pile 31 has a horizontal pile head. Setting the lower pile 32 as a vertical pile head, meaning the busbar 3 is vertically oriented in the width direction, allows the cooling air output by the fan 5 to pass through the lower pile 32 with minimal obstruction, thus ensuring that the airflow can pass through the lower pile 31 to cool the upper pile 31. The upper pile 31, being a horizontal pile head, means the busbar 3 is horizontal in the width direction, resulting in a larger airflow area and better cooling efficiency.

[0040] Of course, the top of the cabinet 1 is provided with heat dissipation holes, which allow hot air to be discharged from the top of the cabinet 1, forming an air duct from bottom to top.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A retractable fan module, characterized in that, The package includes a fan mounting plate, which is slidably mounted on a side support frame via a sliding mechanism. The side support frame is fixedly mounted below the circuit breaker of the distribution cabinet. When the mounting plate slides on the side support frame, it includes a withdrawn state and an inserted state. When the mounting plate is in the inserted state, the fan is directly opposite the head of the busbar. When the mounting plate is in the withdrawn state, the mounting plate extends out of the distribution cabinet.

2. The retractable fan module according to claim 1, characterized in that, The side support frame includes two symmetrically arranged side beams, with a cross brace between the side beams. When the mounting plate is in the insertion position, the mounting plate abuts against the cross brace.

3. A retractable fan module according to claim 2, characterized in that, It also includes secondary plug-in components, which include mutually compatible static plug-in components and dynamic plug-in components. The static plug-in component is fixedly mounted on the cross brace beam and electrically connected to the main circuit of the power distribution cabinet. The dynamic plug-in component is fixedly mounted on the mounting plate and electrically connected to the fan on the mounting plate. When the mounting plate is in the insertion position, the dynamic plug-in component and the static plug-in component cooperate with each other.

4. A retractable fan module according to any one of claims 2 or 3, characterized in that, A first fixing plate is provided on the side beam, and a first hole is provided on the fixing plate. A second fixing plate is provided on the mounting plate, and a second hole is provided on the second fixing plate. When the mounting plate is in the insertion state, the first fixing plate and the second fixing plate are in contact with each other, and the first hole and the second hole are concentric.

5. A retractable fan module according to claim 4, characterized in that, The mounting plate is also provided with a third limiting plate, which is located at the edge of the mounting plate. When the mounting plate is in the withdrawn state, the third limiting plate abuts against the first fixing plate.

6. A retractable fan module according to claim 1, characterized in that, The sliding mechanism includes a damping guide rail on the side beam and slide beams disposed on both sides of the mounting plate, wherein the damping guide rail and the slide beams are adapted to each other.

7. A retractable fan module according to claim 1, characterized in that, The mounting plate is equipped with a pull-out handle.

8. A power distribution cabinet, comprising a cabinet body, wherein a circuit breaker and a busbar connected to the circuit breaker are disposed within the cabinet body, characterized in that, It also includes a retractable fan module as described in any one of claims 1 to 7 and a cavity for providing the retractable fan module, the cavity being located directly below the power distribution cabinet, and the side support being fixedly installed in the cavity.

9. A power distribution cabinet according to claim 8, characterized in that, The busbar includes an upper pile and a lower pile, wherein the lower pile has a vertical pile head and the upper pile has a horizontal pile head.

10. A power distribution cabinet according to claim 8, characterized in that, The top of the cabinet is equipped with ventilation holes.

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