Electrical cabinet with protection function

Abstract

The utility model discloses an electrical cabinet with a protection function, and relates to the technical field of electrical cabinet protection. The electrical cabinet with the protection function comprises an electrical cabinet body, a cabinet door is arranged at the front end of the electrical cabinet body, a ventilation window is arranged on the side face of the electrical cabinet body, a frame is fixedly connected to the inner side wall of the electrical cabinet body, a motor is arranged in the frame, and the motor is in transmission connection with a rotating shaft through an output shaft of the motor. According to the electric cabinet, through the arrangement of the rainy day closing mechanism, when the sponge block is soaked and heavier in rainy days, the pressing plate is pressed downwards to make contact with a contact switch on the power supply device, the power supply device is started to supply power to the electromagnet, and the electric cabinet is powered on; the electromagnet can generate magnetism to attract the arc-shaped block to move away from the clamping groove, at the moment, the telescopic spring rebounds to drive the sealing block to move downwards to seal the ventilation window, and moisture is prevented from entering.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinet protection, in particular to an electrical cabinet with a protection function. Background Art

[0002] Electrical cabinets are made of steel and are used to protect the normal operation of components. The materials used to make electrical cabinets are generally divided into hot-rolled steel plates and cold-rolled steel plates. They are mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc.

[0003] The electrical cabinets currently on the market are made of hard materials that can well protect the internal components. They also have ventilation windows and are equipped with cooling fans for heat dissipation. However, on rainy days, moisture can easily enter the electrical cabinet through the ventilation windows and cause corrosion to the components, which is not conducive to the protection of the components. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an electrical cabinet with a protective function, which solves the problems raised in the above-mentioned background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: an electrical cabinet with a protective function, comprising an electrical cabinet body, a cabinet door is provided at the front end of the electrical cabinet body, a ventilation window is provided on the side of the electrical cabinet body, a frame is fixedly connected to the inner wall of the electrical cabinet body, a motor is provided inside the frame, the motor is connected to a rotating shaft through its output shaft transmission, a ventilation fan is fixedly connected to the end of the rotating shaft away from the motor, a rainy day sealing mechanism is provided on the side of the electrical cabinet body, a rainy day power-off mechanism and an automatic opening mechanism are provided inside the electrical cabinet body, and the rainy day sealing mechanism includes a fixed block, a groove, a power supply, and a spring. A telescopic rod, the fixed block is fixedly connected to the side of the electrical cabinet body, the top of the fixed block is fixedly connected with a sliding rod, the sliding rod is slidably connected with a closing block through a telescopic spring, a slot is provided on the side of the closing block, the groove is provided on the side of the electrical cabinet body, the inside of the groove is slidably connected with an arc block through a compression spring, an electromagnet is arranged inside the groove, the power supply and the spring telescopic rod are both fixedly connected to the top of the electrical cabinet body, the top of the power supply is electrically connected with a contact switch, the power supply is electrically connected to the electromagnet through a wire, the top of the spring telescopic rod is fixedly connected with a pressure plate, and the top of the pressure plate is fixedly connected with a sponge block.

[0005] Preferably, the arc block is made of stainless steel, and is in the slot in the initial state. The telescopic spring is in a stretched state in the initial state. The arc block is stuck in the slot so that the closing block cannot move downward. When the electromagnet generates magnetism, it will attract the stainless steel arc block to leave the slot. When the arc block leaves the slot, the telescopic spring will rebound and drive the closing block to move downward.

[0006] Preferably, the power-off mechanism for rainy days includes a pneumatic chamber and a circuit breaker. The pneumatic chamber passes through and is fixedly connected to the top of the electrical cabinet body. An airbag is provided at one end of the pneumatic chamber. The internal piston at the other end of the pneumatic chamber is slidably connected to a push rod. The circuit breaker is electrically connected to the rear end of the motor, and the side of the circuit breaker is electrically connected to an induction switch.

[0007] Preferably, the airbag is in an expanded state in its initial state, and the push rod is close to the sensing switch. When the airbag is squeezed, the air pressure inside it enters the air pressure chamber to push the push rod to move outside the air pressure chamber. The push rod moves outside the air pressure chamber and contacts the sensing switch.

[0008] Preferably, the automatic opening mechanism includes a rotating rod and a rack, the rotating rod passes through and is rotatably connected to the side of the electrical cabinet body, the rotating rod is transmission-connected to the rotating shaft through a transmission belt, the end of the rotating rod away from the electrical cabinet body is fixedly connected to a gear, and the rack is fixedly connected to the side of the closing block.

[0009] Preferably, the teeth on the gear mesh with the teeth on the rack, and the rack is initially located above the gear. When the closing block moves downward, it drives the rack to move downward and mesh with the gear. At this time, the rotation of the gear drives the rack to move upward.

[0010] The utility model provides an electrical cabinet with a protective function. It has the following beneficial effects:

[0011] (1) The present application is provided with a rainy day sealing mechanism, so that when it rains, the sponge block becomes wet and heavy, which presses down the pressure plate and contacts the contact switch on the power supply to turn on the power supply to supply power to the electromagnet. The electromagnet will generate magnetic attraction to move the arc block away from the slot. At this time, the telescopic spring rebounds and drives the sealing block to move downward to seal the ventilation window, thereby preventing moisture from entering.

[0012] (2) The present application is provided with a power-off mechanism for rainy days, thereby achieving the goal that when the sponge block is soaked and becomes heavy on rainy days, the pressure plate will press down and squeeze the airbag. The air pressure inside the airbag enters the air pressure chamber, pushing the push rod to move and contact the induction switch on the circuit breaker. At this time, the circuit breaker will cut off the power to the motor, and the ventilation fan will stop rotating, saving energy.

[0013] (3) The present application is provided with an automatic opening mechanism, so that when the rain stops and the sky clears, the moisture absorbed by the sponge block is evaporated and becomes lighter, and the spring inside the spring telescopic rod rebounds to drive the pressure plate to restore the motor to restart the ventilation fan and rotate again, which will drive the closing block to automatically move upward to open the air window and resume ventilation and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0016] Figure 3 This is an enlarged view of the structure at A of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the rainy day sealing mechanism of the utility model;

[0018] Figure 5 This is an enlarged view of the structure at B of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the rainy day power-off mechanism of the utility model;

[0020] Figure 7 It is a structural schematic diagram of the automatic opening mechanism of the utility model.

[0021] In the figure: 1. electrical cabinet body; 2. cabinet door; 3. air vent; 4. frame; 5. motor; 6. rotating shaft; 7. ventilation fan; 8. rainy day closing mechanism; 81. fixing block; 82. sliding rod; 83. telescopic spring; 84. closing block; 85. slot; 86. groove; 87. compression spring; 88. arc block; 89. electromagnet; 810. power supply; 811. contact switch; 812. spring telescopic rod; 813. pressure plate; 814. sponge block; 9. rainy day power-off mechanism; 91. air pressure chamber; 92. air bag; 93. push rod; 94. circuit breaker; 95. induction switch; 10. automatic opening mechanism; 101. rotating rod; 102. transmission belt; 103. gear; 104. rack. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment 1

[0024] See also Figure 1-5, an electrical cabinet with a protective function, comprising an electrical cabinet body 1, a cabinet door 2 is arranged at the front end of the electrical cabinet body 1, a ventilation window 3 is arranged on the side of the electrical cabinet body 1, a frame 4 is fixedly connected to the inner side wall of the electrical cabinet body 1, a motor 5 is arranged inside the frame 4, the motor 5 is connected to a rotating shaft 6 through its output shaft transmission, and a ventilation fan 7 is fixedly connected to the end of the rotating shaft 6 away from the motor 5, a rainy day sealing mechanism 8 is arranged on the side of the electrical cabinet body 1, a rainy day power-off mechanism 9 and an automatic opening mechanism 10 are arranged inside the electrical cabinet body 1, the rainy day sealing mechanism 8 comprises a fixed block 81, a groove 86, a power supply 810, and a spring telescopic rod 812, the fixed block 81 is fixedly connected to the side of the electrical cabinet body 1, a sliding rod 82 is fixedly connected to the top of the fixed block 81, a closing block 84 is slidably connected to the sliding rod 82 through a telescopic spring 83, a card slot 85 is opened on the side of the closing block 84, and a groove 86 is opened on the electrical cabinet body 1, the inside of the groove 86 is slidably connected with an arc block 88 through a compression spring 87, the arc block 88 is made of stainless steel, and the arc block 88 is initially in the slot 85, and the telescopic spring 83 is initially in a stretched state, and an electromagnet 89 is arranged inside the groove 86, and the arc block 88 is stuck in the slot 85 so that the closing block 84 cannot move downward, and when the electromagnet 89 generates magnetism, it will attract the arc block 88 made of stainless steel to leave the slot 85, and when the arc block 88 leaves the slot 85, the telescopic spring 83 will rebound and drive the closing block 84 to move downward, the power supply 810 and the spring telescopic rod 812 are fixedly connected to the top of the electrical cabinet body 1, the top of the power supply 810 is electrically connected to the contact switch 811, and the power supply 810 is electrically connected to the electromagnet 89 through a wire, the top of the spring telescopic rod 812 is fixedly connected to a pressure plate 813, and the top of the pressure plate 813 is fixedly connected to a sponge block 814.

[0025] When in use, the motor 5 drives the rotating shaft 6 to rotate through its output shaft, and the rotation of the rotating shaft 6 drives the ventilation fan 7 to rotate. When the ventilation fan 7 rotates, the airflow passes through the air vent 3 to ventilate and dissipate heat to the inside of the electrical cabinet body 1. When it rains, rain falls on the sponge block 814 and soaks the sponge block 814. The sponge block 814 absorbs water and becomes heavier, pressing the pressing plate 813 downward, and the spring telescopic rod 812 shrinks downward. The internal spring is tightened, and the pressing plate 813 moves downward to contact the contact switch 811 to turn on the power supply 810 to supply power to the electromagnet 89. At this time, the electromagnet 89 generates magnetism to attract the arc block 88 made of stainless steel to make it leave the slot 85. When the arc block 88 leaves the slot 85, the telescopic spring 83 will rebound and drive the closing block 84 to move downward. The closing block 84 moves downward to close the air vent 3 to prevent moisture from entering the electrical cabinet body 1 through the air vent 3 and corroding components.

[0026] Embodiment 2

[0027] See also Figure 1-6On the basis of the first embodiment, the rainy day power-off mechanism 9 includes an air pressure chamber 91 and a circuit breaker 94. The air pressure chamber 91 passes through and is fixedly connected to the top of the electrical cabinet body 1. An air bag 92 is arranged at one end of the air pressure chamber 91. A push rod 93 is slidably connected to the internal piston of the other end of the air pressure chamber 91. The circuit breaker 94 is electrically connected to the rear end of the motor 5. The side of the circuit breaker 94 is electrically connected to the induction switch 95. The air bag 92 is in an expanded state in the initial state, and the push rod 93 is close to the induction switch 95. When the air bag 92 is squeezed, the air pressure inside it enters the air pressure chamber 91 and pushes the push rod 93 to move out of the air pressure chamber 91. The push rod 93 moves out of the air pressure chamber 91 and contacts the induction switch 95.

[0028] During use, based on the first embodiment, the downward movement of the pressure plate 813 will also squeeze the airbag 92. When the airbag 92 is squeezed, the air pressure inside it enters the air pressure chamber 91 and pushes the push rod 93 to move outside the air pressure chamber 91. The push rod 93 moves outside the air pressure chamber 91 and contacts the induction switch 95 to open the circuit breaker 94. At this time, the circuit breaker 94 will turn off the motor 5 and the ventilation fan 7 will stop rotating to save electricity.

[0029] Embodiment 3

[0030] See also Figure 1-7 On the basis of the first and second embodiments, the automatic opening mechanism 10 includes a rotating rod 101 and a rack 104. The rotating rod 101 passes through and is rotatably connected to the side of the electrical cabinet body 1. The rotating rod 101 is transmission-connected to the rotating shaft 6 through a transmission belt 102. The end of the rotating rod 101 away from the electrical cabinet body 1 is fixedly connected to a gear 103. The rack 104 is fixedly connected to the side of the closing block 84. The teeth on the gear 103 are meshed with the teeth on the rack 104. The rack 104 is initially located above the gear 103. When the closing block 84 moves downward, the rack 104 is driven to move downward and mesh with the gear 103. At this time, the rotation of the gear 103 drives the rack 104 to move upward.

[0031] When in use, on the basis of Embodiment 1 and Embodiment 2, when the closing block 84 moves downward to close the air vent window 3, it will drive the rack 104 to move downward and mesh with the gear 103. When the rain stops and the sky clears, the moisture in the sponge block 814 is evaporated and becomes lighter, the spring in the spring telescopic rod 812 rebounds and drives the pressure plate 813 to move upward and leave the air bag 92. The air pressure of the air bag 92 rebounds back into the air bag 92, and the push rod 93 is restored to leave the sensing switch 95, and the motor 5 is restarted. At this time, the motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 rotates through the transmission belt 102 to drive the rotating rod 101 to rotate. The rotating rod 101 rotates and drives the rack 104 and the closing block 84 to move upward. At the beginning, the arc surface of the arc block 88 is squeezed and compressed back into the groove 86. When the slot 85 is fitted with the groove 86, the compression spring 87 rebounds and drives the arc block 88 to snap into the slot 85 to complete the fixation of the closing block 84, so that when the rain stops and the sky clears, the closing block 84 automatically moves upward to open the air vent window 3 for ventilation and heat dissipation.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrical cabinet with a protective function, comprising an electrical cabinet body (1), characterized in that: The front end of the electrical cabinet body (1) is provided with a cabinet door (2), the side of the electrical cabinet body (1) is provided with a ventilation window (3), the inner wall of the electrical cabinet body (1) is fixedly connected to a frame (4), a motor (5) is arranged inside the frame (4), the motor (5) is connected to a rotating shaft (6) through its output shaft, and a ventilation fan (7) is fixedly connected to the end of the rotating shaft (6) away from the motor (5), a rainy day sealing mechanism (8) is arranged on the side of the electrical cabinet body (1), and a rainy day power-off mechanism (9) and an automatic opening mechanism (10) are arranged inside the electrical cabinet body (1); The rainy day sealing mechanism (8) comprises a fixed block (81), a groove (86), a power supply (810), and a spring telescopic rod (812); the fixed block (81) is fixedly connected to the side of the electrical cabinet body (1); a sliding rod (82) is fixedly connected to the top of the fixed block (81); a sealing block (84) is slidably connected to the sliding rod (82) via a telescopic spring (83); a slot (85) is provided on the side of the sealing block (84); the groove (86) is provided on the side of the electrical cabinet body (1); the interior of the groove (86) is compressed by a pressure The compression spring (87) is slidably connected to an arc block (88); an electromagnet (89) is arranged inside the groove (86); the power supply (810) and the spring telescopic rod (812) are both fixedly connected to the top of the electrical cabinet body (1); the top of the power supply (810) is electrically connected to a contact switch (811); the power supply (810) is electrically connected to the electromagnet (89) via a wire; the top of the spring telescopic rod (812) is fixedly connected to a pressure plate (813); and the top of the pressure plate (813) is fixedly connected to a sponge block (814).

2. The electrical cabinet with protective function according to claim 1, characterized in that: The arc block (88) is made of stainless steel. In the initial state, the arc block (88) is in the clamping groove (85). In the initial state, the telescopic spring (83) is in a stretched state.

3. The electrical cabinet with protective function according to claim 2, characterized in that: The rainy day power-off mechanism (9) comprises an air pressure chamber (91) and a circuit breaker (94); the air pressure chamber (91) penetrates through and is fixedly connected to the top of the electrical cabinet body (1); an air bag (92) is arranged at one end of the air pressure chamber (91); a push rod (93) is slidably connected to an internal piston at the other end of the air pressure chamber (91); the circuit breaker (94) is electrically connected to the rear end of the motor (5); and a side of the circuit breaker (94) is electrically connected to an induction switch (95).

4. The electrical cabinet with protection function according to claim 3, characterized in that: The airbag (92) is in an expanded state in an initial state, and the push rod (93) is close to the induction switch (95).

5. The electrical cabinet with protection function according to claim 4, characterized in that: The automatic opening mechanism (10) comprises a rotating rod (101) and a rack (104); the rotating rod (101) penetrates through and is rotatably connected to a side surface of an electrical cabinet body (1); the rotating rod (101) is transmission-connected to a rotating shaft (6) via a transmission belt (102); one end of the rotating rod (101) away from the electrical cabinet body (1) is fixedly connected to a gear (103); and the rack (104) is fixedly connected to a side surface of a closing block (84).

6. The electrical cabinet with protection function according to claim 5, characterized in that: The teeth on the gear (103) mesh with the teeth on the rack (104), and the rack (104) is located above the gear (103) in an initial state.

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