Safety structure of alternating-current metal closed looped network switchgear

Abstract

The utility model provides a safety structure of alternating current metal closed looped network switch equipment, which belongs to the technical field of alternating current metal closed looped network switch equipment, and comprises a switch equipment body, a main bus chamber, a handcart chamber and a cable chamber, a door body is rotatably arranged on the left side of the outer surface of the switch equipment body through a hinge, and an electric meter is embedded above the door body. The interior of the switchgear body is divided into a main bus chamber, a handcart chamber and a cable chamber through partition plates, a heat dissipation frame is arranged on the left side of the handcart chamber in a penetrating manner, a heat dissipation fan is fixedly arranged on the left side in the heat dissipation frame, and an air inlet pipe is arranged on the right side in the handcart chamber in a penetrating manner; according to the utility model, through the arrangement of the heat dissipation frame, the heat dissipation fan and the air inlet pipe, when heat dissipation is carried out on the handcart chamber in the switchgear body, the heat dissipation fan is started, the heat dissipation fan blows out hot air in the handcart chamber, and external air enters from the air inlet pipe, so that air circulation in the switchgear is accelerated, the interior of the switchgear is cooled, and safe operation of the switchgear is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of AC metal-enclosed ring network switch equipment, in particular to a safety structure of AC metal-enclosed ring network switch equipment. Background Art

[0002] AC metal-enclosed ring network switchgear (commonly known as ring main unit) plays a vital role in the power system. It is a device with compact structure, flexible operation and reliable interlocking, suitable for various applications and user requirements. The adoption of sensing technology and advanced protection relays makes the equipment have higher technical performance and intelligence level. The equipment is equipped with intelligent sensors such as partial discharge, pressure, mechanical properties, temperature, voltage, current, etc., which can monitor various parameters in real time online during equipment operation and realize early warning and monitoring functions.

[0003] For example, in the prior art, a Chinese patent with patent announcement number CN219535388U discloses an AC metal-enclosed switch device with high safety performance. During use, the heat dissipation fan inside the frame drives the shaft to rotate, thereby driving the fan blades to rotate, accelerating the air circulation inside the device, cooling the interior, and ensuring the safe operation of the device. In this way, a real-time cooling effect is achieved to ensure the safe operation of the equipment.

[0004] However, the device is only provided with a cooling mechanism. When the hot air inside is discharged from the cooling mechanism, the outside air cannot enter the trolley room, which affects the fluidity of the air and the heat dissipation effect. When the cooling mechanism does not cool down, external moisture can easily enter the trolley room through the cooling mechanism, causing excessive humidity in the trolley room, affecting the service life of electronic components in the trolley room. Therefore, a safety structure of an AC metal enclosed ring network switch device is designed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a safety structure of an AC metal-enclosed ring network switch device.

[0006] The technical problem to be solved by the utility model is to provide a safety structure of an AC metal-enclosed ring network switch device, which has good air flowability and heat dissipation effect during heat dissipation, can prevent moisture from entering the trolley room, ensures the service life of electronic components in the trolley room, and has high practicality.

[0007] The technical problem to be solved by the utility model is to provide a safety structure of an AC metal-enclosed ring network switch device, comprising a switch device body, a main busbar chamber, a trolley chamber and a cable chamber, a door body being provided on the left side of the outer surface of the switch device body through a hinge rotation, an electric meter being embedded above the door body, the interior of the switch device body being divided into a main busbar chamber, a trolley chamber and a cable chamber by a partition, a heat dissipation frame being provided through the left side of the trolley chamber, a heat dissipation fan being fixedly provided on the left side of the interior of the heat dissipation frame, and an air inlet duct being provided through the right side of the interior of the trolley chamber.

[0008] Preferably, the horizontal height of the heat dissipation frame is higher than the horizontal height of the air inlet pipe.

[0009] Preferably, a heat sink is fixedly provided inside the heat sink frame, and a plurality of heat sink slots are provided on the heat sink, and mesh boxes are embedded in the heat sink slots, and the mesh boxes are filled with desiccant.

[0010] Preferably, the heat dissipation groove on the heat dissipation plate is in an inverted funnel shape with a small opening on the left side and a large opening on the right side.

[0011] Preferably, the net cage is a box structure with an opening at the top.

[0012] Preferably, a connecting rod is fixedly provided at the center of the left side surface of the net box, and the connecting rod is fixed to the entire left side surface of the net box.

[0013] Preferably, the air inlet pipe comprises a desiccant mesh tube and an external threaded ring, the left and right sides of the outer surface of the desiccant mesh tube are both sleeved with external threaded rings, and the two external threaded rings are threadedly connected in the air inlet pipe.

[0014] Preferably, the external threaded ring is made of rubber, and the desiccant mesh cylinder is interference fit with the external threaded ring.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] 1. The utility model is provided with a heat dissipation frame, a heat dissipation fan and an air inlet pipe. When the heat dissipation in the trolley chamber in the switch device body is performed, the heat dissipation fan is turned on to blow out the hot air in the trolley chamber, and the outside air enters from the air inlet pipe, thereby accelerating the air circulation inside the equipment, cooling the interior, and ensuring the safe operation of the equipment. The horizontal height of the heat dissipation frame is higher than the horizontal height of the air inlet pipe. Due to the thermal effect of the air, the air in the trolley chamber flows upward after being heated. The high horizontal height of the heat dissipation frame facilitates the hot air in the trolley chamber to be discharged from the heat dissipation frame, and the outside air enters from the bottom of the trolley chamber, so that the air flow does not need to overcome the thermal effect in the trolley chamber, thereby ensuring the smoothness of the air flow in the trolley chamber, further ensuring the heat dissipation effect, and ensuring the safe operation of the equipment.

[0017] 2. The utility model is provided with a desiccant. When the heat dissipation frame does not dissipate heat, when external moisture enters the trolley room from the heat dissipation grooves on the heat dissipation plate, the desiccant in the mesh box can absorb moisture in the air to prevent excessive humidity in the trolley room and ensure the service life of the electronic components in the trolley room.

[0018] 3. The utility model arranges the heat dissipation slot in an inverted funnel shape. When the heat dissipation fan is turned on, the heat dissipation fan blows out the hot air in the trolley room, reduces the air flow path through the heat dissipation slot, increases the air flow rate, ensures that the hot air passes through the mesh box and the desiccant, reduces the obstruction of the mesh box and the desiccant to the hot air, and ensures normal heat dissipation.

[0019] 4. The utility model sets the mesh box as a box structure with an upper opening. When the desiccant in the mesh box needs to be replaced, the connecting rod is grasped and pulled to the left, and the connecting rod drives all the mesh boxes to move to the left. The mesh box is taken out from the heat dissipation slot on the heat dissipation plate, and then the desiccant in the mesh box is poured out and new desiccant is added. The operation is simple and convenient.

[0020] 5. The utility model is provided with a desiccant mesh tube and an external threaded ring. When the trolley chamber dissipates heat, external air enters the trolley chamber from the air inlet pipe, and the desiccant in the desiccant mesh tube absorbs moisture in the air to prevent moisture from entering the trolley chamber. When the desiccant mesh tube needs to be replaced, the desiccant mesh tube and the external threaded ring are removed from the air inlet pipe, the external threaded ring is taken out from the desiccant mesh tube, the external threaded ring is then sleeved on the new desiccant mesh tube, and finally the external threaded ring is threadedly connected to the air inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 The utility model is a three-dimensional schematic diagram of the overall structure Figure 1 .

[0023] Figure 2 The utility model is a three-dimensional schematic diagram of the overall structure Figure 2 .

[0024] Figure 3 It is a schematic diagram of the disassembled structure of the heat dissipation frame and the heat dissipation plate of the utility model.

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the heat dissipation plate and the mesh box of the utility model.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the air inlet pipe of the utility model.

[0027] Figure 6 This is a schematic diagram of the split structure of the air inlet pipe of the utility model.

[0028] [Reference Signs]

[0029] 1. Switchgear body; 101. Door; 102. Electric meter; 2. Main busbar room; 3. Cart room; 4. Cable room; 5. Heat dissipation frame; 501. Heat dissipation fan; 502. Heat dissipation plate; 503. Net box; 504. Desiccant; 505. Connecting rod; 6. Air inlet pipe; 601. Desiccant net tube; 602. External thread ring. DETAILED DESCRIPTION

[0030] like Figure 1-Figure 6 As shown, an embodiment of the utility model provides a safety structure of an AC metal-enclosed ring network switch device, including a switch device body 1, a main busbar chamber 2, a trolley chamber 3 and a cable chamber 4. A door body 101 is rotatably provided on the left side of the outer surface of the switch device body 1 through a hinge, and an electric meter 102 is embedded above the door body 101. The interior of the switch device body 1 is divided into the main busbar chamber 2, the trolley chamber 3 and the cable chamber 4 by a partition. A heat dissipation frame 5 is penetrated on the left side of the trolley chamber 3, and a heat dissipation fan 501 is fixedly provided on the left side of the heat dissipation frame 5. An air inlet duct 6 is penetrated on the right side of the interior of the trolley chamber 3.

[0031] By providing a heat dissipation frame 5, a heat dissipation fan 501 and an air inlet pipe 6, when the trolley chamber 3 in the switch device body 1 is cooled, the heat dissipation fan 501 is turned on, the heat dissipation fan 501 blows out the hot air in the trolley chamber 3, and the external air enters from the air inlet pipe 6, which accelerates the air circulation inside the equipment, cools down the interior, and ensures the safe operation of the equipment.

[0032] In this embodiment, the horizontal height of the heat dissipation frame 5 is higher than the horizontal height of the air inlet pipe 6. Due to the thermal effect of the air, the air in the trolley chamber 3 flows upward after being heated. The high horizontal height of the heat dissipation frame 5 facilitates the hot air in the trolley chamber 3 to be discharged from the heat dissipation frame 5, and the external air enters from the bottom of the trolley chamber 3, so that the air flow does not need to overcome the thermal effect in the trolley chamber, thereby ensuring the smoothness of the air flow in the trolley chamber 3, further ensuring the heat dissipation effect, and ensuring the safe operation of the equipment.

[0033] In this embodiment, a heat sink 502 is fixedly disposed inside the heat sink frame 5, and a plurality of heat sink slots are provided on the heat sink 502, and a mesh box 503 is embedded in the heat sink slots, and the mesh box 503 is filled with a desiccant 504;

[0034] By providing the desiccant 504, when the heat dissipation frame 5 is not dissipating heat, when external moisture enters the trolley chamber 3 from the heat dissipation grooves on the heat dissipation plate 502, the desiccant 504 in the mesh box 503 can absorb moisture in the air to prevent excessive humidity in the trolley chamber 3, thereby ensuring the service life of the electronic components in the trolley chamber 3.

[0035] In this embodiment, the heat dissipation slots on the heat dissipation plate 502 are in the shape of an inverted funnel with a small opening on the left side and a large opening on the right side.

[0036] By setting the heat dissipation slot in an inverted funnel shape, when the heat dissipation fan 501 is turned on, the heat dissipation fan 501 blows out the hot air in the trolley chamber 3, reduces the air flow path through the heat dissipation slot, increases the air flow rate, ensures that the hot air passes through the mesh box 503 and the desiccant 504, reduces the obstruction of the mesh box 503 and the desiccant 504 to the hot air, and ensures normal heat dissipation.

[0037] In this embodiment, the net box 503 is a box structure with an upper opening, which facilitates the replacement of the desiccant in the net box 503.

[0038] In this embodiment, a connecting rod 505 is fixedly provided in the center of the left side surface of the net box 503, and the connecting rod 505 is fixed to the left side surfaces of all the net boxes 503, so as to facilitate taking out all the net boxes 503 at the same time.

[0039] By setting the net box 503 as a box structure with an opening on the top, when the desiccant in the net box 503 needs to be replaced, the connecting rod 505 is grasped and pulled to the left, and the connecting rod 505 drives all the net boxes 503 to move to the left. The net box is taken out from the heat dissipation slot on the heat dissipation plate 502, and then the desiccant in the net box 503 is poured out and new desiccant is added. The operation is simple and convenient.

[0040] In this embodiment, the air inlet pipe 6 includes a desiccant mesh tube 601 and an external threaded ring 602 . The external threaded rings 602 are sleeved on both sides of the outer surface of the desiccant mesh tube 601 . The two external threaded rings 602 are threadedly connected to the air inlet pipe 6 .

[0041] In this embodiment, the external thread ring 602 is made of rubber, and the desiccant mesh tube 601 and the external thread ring 602 are interference fit.

[0042] By providing the desiccant mesh tube 601 and the external threaded ring 602, when the switch device body 1 dissipates heat, external air enters the trolley chamber 3 from the air inlet pipe 6, and the moisture in the air is adsorbed by the desiccant in the desiccant mesh tube 601 to prevent moisture from entering the trolley chamber 3, thereby ensuring the service life of the electronic components in the trolley chamber 3. When the desiccant mesh tube 601 needs to be replaced, the desiccant mesh tube 601 and the external threaded ring 602 are removed from the air inlet pipe 6, and the external threaded ring 602 is taken out from the desiccant mesh tube 601, and then the external threaded ring 602 is sleeved on the new desiccant mesh tube 601, and finally the external threaded ring 602 is threadedly connected to the air inlet pipe 6.

[0043] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A safety structure of an AC metal-enclosed ring network switchgear, characterized in that: The switchgear body (1) comprises a switchgear body (1), a main busbar chamber (2), a trolley chamber (3) and a cable chamber (4); a door body (101) is rotatably provided on the left side of the outer surface of the switchgear body (1) via a hinge; an electric meter (102) is embedded above the door body (101); the interior of the switchgear body (1) is divided into a main busbar chamber (2), a trolley chamber (3) and a cable chamber (4) via a partition; a heat dissipation frame (5) is provided on the left side of the trolley chamber (3); a heat dissipation fan (501) is fixedly provided on the left side of the interior of the heat dissipation frame (5); and an air inlet duct (6) is provided on the right side of the interior of the trolley chamber (3).

2. The safety structure of the AC metal-enclosed ring network switchgear according to claim 1 is characterized in that: The horizontal height of the heat dissipation frame (5) is higher than the horizontal height of the air inlet pipe (6).

3. The safety structure of the AC metal-enclosed ring network switchgear according to claim 1 is characterized in that: A heat dissipation plate (502) is fixedly arranged inside the heat dissipation frame (5), and a plurality of heat dissipation grooves are provided on the heat dissipation plate (502). A mesh box (503) is embedded in the heat dissipation grooves, and the mesh box (503) is filled with a desiccant (504).

4. The safety structure of the AC metal-enclosed ring network switchgear according to claim 3 is characterized in that: The heat dissipation groove on the heat dissipation plate (502) is in the shape of an inverted funnel with a small opening on the left side and a large opening on the right side.

5. The safety structure of the AC metal-enclosed ring network switchgear according to claim 4 is characterized in that: The net box (503) is a box structure with an opening at the top.

6. The safety structure of the AC metal-enclosed ring network switchgear according to claim 5 is characterized in that: A connecting rod (505) is fixedly arranged in the centre of the left side surface of the net box (503), and the connecting rod (505) is fixed to the left side surfaces of the entire net box (503).

7. The safety structure of the AC metal-enclosed ring network switchgear according to claim 6 is characterized in that: The air inlet pipe (6) comprises a desiccant mesh cylinder (601) and an external threaded ring (602), and the left and right sides of the outer surface of the desiccant mesh cylinder (601) are both sleeved with the external threaded ring (602), and the two external threaded rings (602) are threadedly connected to the air inlet pipe (6).

8. The safety structure of the AC metal-enclosed ring network switchgear according to claim 7 is characterized in that: The external threaded ring (602) is made of rubber, and the desiccant mesh cylinder (601) is interference-fitted with the external threaded ring (602).

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