Electrical cabinet with power-off protection mechanism

Abstract

The invention relates to the field of electrical cabinets, in particular to an electrical cabinet with a power-off protection mechanism, which comprises a sealed cabinet body, one side of the sealed cabinet body is rotatably connected with a cabinet door, and a mounting plate is mounted in the sealed cabinet body. The power-off protection function is achieved through the circuit breaker, the baffle rotates at the moment so that opening or closing of the air inlet groove can be achieved, in cooperation with the exhaust fan, when the baffle is closed, air in the sealed cabinet body can be rapidly exhausted, when the baffle is opened, the interior of the sealed cabinet body can be in an air circulation state, the heat dissipation stability is guaranteed, and the service life of the sealed cabinet body is prolonged. After air is exhausted, due to the fact that the interior of the sealed cabinet body is in an oxygen-deficient state, fire is difficult to generate or spread, the opening range of the baffle can be controlled according to the weather condition of the environment where the baffle is located, power-off protection can be carried out on electric parts through the mode, and fire is prevented from being generated in the sealed cabinet body; and the structure can be repeatedly used, so that not only are circuits and equipment protected, but also electric devices are protected.

Description

Technical Field

[0001] The invention relates to the field of electrical cabinets, and in particular to an electrical cabinet with a power-off protection mechanism. Background Art

[0002] Electrical cabinet is a device used for centralized control of power distribution, control and protection equipment. It is mainly made of steel. Its manufacturing materials generally include hot-rolled steel plates and cold-rolled steel plates. The latter is more suitable for the production of electrical cabinets because of its soft material. Electrical cabinets are widely used in many fields, including but not limited to the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring and transportation industry.

[0003] The Chinese invention patent application with the announcement number CN116581658B discloses a power distribution cabinet with overcurrent power-off protection and a power-off protection method thereof, which includes a cabinet, a power distribution cavity is provided in the cabinet, a side door that can be opened and closed is provided at the opening of the power distribution cavity, an overcurrent protection mechanism for overcurrent protection of the power distribution circuit and a fire extinguishing mechanism for extinguishing the fire in the power distribution cavity are provided in the power distribution cavity; the overcurrent protection mechanism includes a controller, an overcurrent protector and a buzzer, the overcurrent protector is connected to the power distribution circuit to detect whether the current is overloaded, the controller is electrically connected to the overcurrent protector, the buzzer is electrically connected to the controller, and the controller is used to control the buzzer to sound an alarm. Through the above structure, the overcurrent protection mechanism can monitor the power distribution circuit in the power distribution cabinet, so that the power-off protection is obtained when the current is too large, and when a fire occurs in the power distribution cabinet due to overcurrent in the power distribution circuit, the fire extinguishing mechanism can extinguish the fire in the power distribution cabinet.

[0004] In the process of using the existing electrical cabinet, for the sake of safety, it will generally automatically cut off the power for protection after a fault occurs inside it. The existing protection measures generally use circuit breakers to automatically cut off the power. However, due to the fault, a fire may occur before or after the power is cut off. In order to deal with this risk, a small number of electrical cabinets on the market are equipped with fire extinguishing mechanisms inside. When a fire source occurs, the fire is extinguished by spraying fire extinguishing agents or directly spraying water. After the implementation of this protection measure, it will damage the internal electrical components, thereby causing damage to the electrical components, and the amount of spraying is also relatively limited. If the fire is not completely extinguished once, the spread of subsequent fire sources cannot be suppressed. In addition, the fire extinguishing system is generally disposable, and the entire system needs to be replaced for use again. It can be seen that this power-off protection, although it cuts off the power supply and protects the power supply circuits and equipment, cannot truly protect the electrical cabinet itself.

[0005] Therefore, it is necessary to invent an electrical cabinet with a power-off protection mechanism to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide an electrical cabinet with a power-off protection mechanism, which can suppress the occurrence or spread of fire by creating an oxygen-deficient environment in a sealed cabinet after the power-off protection is completed, so as to solve the problem in the prior art that the electrical components inside the electrical cabinet cannot be protected when a fire occurs after the power is cut off.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an electrical cabinet with a power-off protection mechanism, comprising a sealed cabinet, a cabinet door is rotatably connected to one side of the sealed cabinet, a mounting plate is installed in the sealed cabinet, an electrical component is installed on one side of the mounting plate, a circuit breaker is installed between the electrical component and the power supply, and the circuit breaker is connected to one side of the mounting plate;

[0008] A sealing protection component is arranged in the sealing cabinet and is used to seal the sealing cabinet;

[0009] A driving assembly, disposed in the sealing protection assembly, for driving the sealing protection assembly to open and close;

[0010] The exhaust control component is arranged above the sealed cabinet and is used to exhaust the air in the sealed cabinet.

[0011] As a preferred solution of the present invention, the sealing protection component includes a sealing ring, which is installed on the inner side of the cabinet door. A sealing groove is provided on one side of the sealing cabinet opening, and the sealing ring is embedded and fit in the sealing groove.

[0012] As a preferred solution of the present invention, air inlet slots are symmetrically provided on the inner wall of the sealed cabinet, and two groups are sequentially provided downwardly, and a filter grille plate is installed in each group of the air inlet slots. A connecting frame is symmetrically provided on the outer side of the sealed cabinet, and two groups are sequentially provided downwardly, and the interior of the connecting frame completely covers the air inlet slots.

[0013] As a preferred solution of the present invention, a plurality of baffles are rotatably connected inside the connection frame, and overlapping grooves are provided on upper and lower sides of the baffles. The overlapping grooves are staggered, and the overlapping grooves of each group of baffles are embedded in each other.

[0014] As a preferred solution of the present invention, the driving assembly includes a connecting arm, the connecting arm is axially connected to one side of each group of baffles, and the connecting arm is arranged outside the connecting frame, and a sliding groove is opened on one side of the connecting arm.

[0015] As a preferred solution of the present invention, a through hole is provided on one side of the connecting frame, and a limiting block is symmetrically installed on the inner wall of the through hole. A synchronization rod is connected through the through hole, and limiting grooves are symmetrically provided on the synchronization rod, and the limiting grooves are slidably connected to the corresponding limiting blocks. A limiting ring is fixedly sleeved on the synchronization rod, and the limiting ring fits with the inside of the connecting frame.

[0016] As a preferred solution of the present invention, a threaded hole is provided on the top of the synchronization rod, multiple groups of sliders are installed on one side of the synchronization rod, and the sliders are slidably connected to the corresponding slide grooves, a servo motor is installed above the connecting frame, a screw is installed on the output end of the servo motor, and the screw is threadedly connected to the threaded hole.

[0017] As a preferred solution of the present invention, the exhaust control component includes an air outlet slot, which is opened above the sealed cabinet body, and a plurality of groups of partitions are installed in sequence in the air outlet slot, and each group of partitions is distributed in an "eight" shape, and the "eight" openings of the partitions face the inside of the sealed cabinet body, an exhaust fan is installed above the air outlet slot, a rainproof box is installed above the sealed cabinet body, and the exhaust fan is arranged in the rainproof box.

[0018] As a preferred solution of the present invention, a backup power supply is installed on the inner wall of the sealed cabinet, and the backup power supply is linearly connected to the exhaust fan and the servo motor, and the backup power supply is linearly connected to the external power supply in a charging manner, a controller is installed on one side of the backup power supply, and the controller is linearly connected to the exhaust fan and the servo motor, a current detector is linearly connected to one side of the controller, and the current detector is installed on one side of the mounting plate, and the current detector is linearly connected to the circuit breaker.

[0019] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0020] The power supply can be cut off or turned on by the circuit breaker. At this time, the baffle rotates to open or close the air inlet slot. In conjunction with the exhaust fan, the air in the sealed cabinet can be quickly discharged when the baffle is closed. When the baffle is opened, the air in the sealed cabinet can be in a state of circulation to ensure the stability of heat dissipation. After the air is discharged, the sealed cabinet is in a state of oxygen deficiency, which makes it difficult for the fire to occur or spread. The opening range of the baffle can be controlled according to the weather conditions of the environment. In this way, the electrical components can be protected from power failure and fire inside the sealed cabinet can be avoided. This structure is reusable, which not only protects the circuits and equipment, but also protects the electrical components themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2It is a schematic diagram of the connection structure between the cabinet door and the sealed cabinet body of the present invention;

[0024] Figure 3 It is a schematic diagram of the planed structure of the sealed cabinet of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure of the connection frame and the baffle of the present invention;

[0026] Figure 5 It is a schematic diagram of the layout structure of the baffle of the present invention;

[0027] Figure 6 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 7 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0029] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point C in the middle.

[0030] Description of reference numerals:

[0031] 001, sealed cabinet; 002, sealing protection component; 003, drive component; 004, exhaust control component; 101, cabinet door; 102, mounting plate; 103, electrical components; 104, circuit breaker; 201, sealing ring; 202, sealing groove; 203, air inlet groove; 204, filter grille plate; 205, connecting frame; 206, baffle; 207, overlapping groove; 301, connecting arm; 302, slide groove; 303, through hole; 304, limit block; 305, synchronization rod; 306, limit groove; 307, limit ring; 308, threaded hole; 309, slider; 310, servo motor; 311, screw; 401, air outlet groove; 402, partition; 403, exhaust fan; 404, rainproof box; 405, backup power supply; 406, controller; 407, current detector. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The present invention provides Figure 1-8 An electrical cabinet with a power-off protection mechanism shown in the figure comprises a sealed cabinet 001, a cabinet door 101 is rotatably connected to one side of the sealed cabinet 001, a mounting plate 102 is installed in the sealed cabinet 001, an electrical component 103 is installed on one side of the mounting plate 102, a circuit breaker 104 is installed between the electrical component 103 and the power supply, and the circuit breaker 104 is connected to one side of the mounting plate 102;

[0034] The circuit breaker 104 can control the external power supply and the internal electrical device 103 to be disconnected after a short circuit, thereby achieving the function of protecting the electrical device 103 .

[0035] The sealing protection component 002 is arranged in the sealing cabinet 001 and is used to seal the sealing cabinet 001;

[0036] The driving component 003 is disposed in the sealing protection component 002 and is used to drive the sealing protection component 002 to open and close;

[0037] The exhaust control component 004 is arranged above the sealed cabinet 001 and is used to exhaust the air in the sealed cabinet 001.

[0038] Furthermore, in the above structure, the sealing protection component 002 includes a sealing ring 201, which is installed on the inner side of the cabinet door 101. A sealing groove 202 is opened on the opening side of the sealed cabinet body 001, and the sealing ring 201 is embedded and fits with the sealing groove 202.

[0039] Through the cooperation between the sealing ring 201 and the sealing groove 202, the sealing performance of the cabinet door 101 and the sealed cabinet body 001 can be ensured when the cabinet door 101 and the sealed cabinet body 001 are closed.

[0040] Furthermore, in the above structure, air inlet slots 203 are symmetrically opened on the inner wall of the sealed cabinet 001, and two groups are sequentially opened downward, and a filter grille plate 204 is installed in each group of air inlet slots 203. A connecting frame 205 is symmetrically installed on the outer side of the sealed cabinet 001, and two groups are sequentially opened downward, and the inside of the connecting frame 205 completely covers the air inlet slots 203.

[0041] The filter grille plate 204 allows air to be filtered when it enters the sealed cabinet 001 through the air inlet slot 203 .

[0042] Furthermore, in the above structure, a plurality of baffles 206 are rotatably connected inside the connection frame 205, and overlapping grooves 207 are provided on the upper and lower sides of the baffles 206, and the overlapping grooves 207 are staggered, and the overlapping grooves 207 of each group of baffles 206 are embedded in each other.

[0043] The overlapping grooves 207 of each set of baffles 206 are embedded with each other, so that the baffles 206 can cover and seal the inside of the connection frame 205, thereby sealing the sealed cabinet 001.

[0044] Furthermore, in the above structure, the driving assembly 003 includes a connecting arm 301 , which is axially connected to one side of each baffle group 206 , and is arranged on the outside of the connecting frame 205 , and a sliding groove 302 is opened on one side of the connecting arm 301 .

[0045] By rotating the connecting arm 301 , the baffle 206 can be rotated in the connecting frame 205 , thereby controlling the opening and closing of the connecting frame 205 .

[0046] Furthermore, in the above structure, a through hole 303 is provided on one side of the connecting frame 205, and a limiting block 304 is symmetrically installed on the inner wall of the through hole 303. A synchronization rod 305 is connected through the through hole 303, and a limiting groove 306 is symmetrically provided on the synchronization rod 305, and the limiting groove 306 is slidably connected to the corresponding limiting block 304. A limiting ring 307 is fixedly sleeved on the synchronization rod 305, and the limiting ring 307 fits with the inside of the connecting frame 205.

[0047] Through the cooperation between the limiting groove 306 and the limiting block 304 , the synchronization rod 305 can slide up and down in the through hole 303 .

[0048] Furthermore, in the above structure, a threaded hole 308 is opened at the top of the synchronization rod 305, multiple groups of sliders 309 are installed on one side of the synchronization rod 305, and the sliders 309 are slidably connected to the corresponding slide grooves 302, a servo motor 310 is installed above the connecting frame 205, and a screw 311 is installed at the output end of the servo motor 310, and the screw 311 is threadedly connected to the threaded hole 308.

[0049] The servo motor 310 drives the screw rod 311 to rotate, so that the screw rod 311 matches the threaded hole 308 , so that the synchronous rod 305 drives the slider 309 to slide along the slide groove 302 , so that the connecting arm 301 rotates.

[0050] Furthermore, in the above structure, the exhaust control component 004 includes an air outlet slot 401, which is opened above the sealed cabinet 001, and a number of groups of partitions 402 are installed in sequence in the air outlet slot 401, and each group of partitions 402 is distributed in an "eight" shape, and the "eight" openings of the partitions 402 face the inside of the sealed cabinet 001, an exhaust fan 403 is installed above the air outlet slot 401, a rainproof box 404 is installed above the sealed cabinet 001, and the exhaust fan 403 is arranged in the rainproof box 404.

[0051] The partitions 402 are arranged in an "eight" shape so that air can flow back from the air outlet slots 401 , and due to the operation of the exhaust fan 403 , the air outlet slots 401 can only be in a state of conveying air outwards.

[0052] Furthermore, in the above structure, a backup power supply 405 is installed on the inner wall of the sealed cabinet 001, and the backup power supply 405 is linearly connected to the exhaust fan 403 and the servo motor 310, and the backup power supply 405 is linearly connected to an external power supply using a charging type, a controller 406 is installed on one side of the backup power supply 405, and the controller 406 is linearly connected to the exhaust fan 403 and the servo motor 310, and the controller 406 is wirelessly connected to an external computer, a current detector 407 is linearly connected to one side of the controller 406, and the current detector 407 is installed on one side of the mounting plate 102, and the current detector 407 is linearly connected to the circuit breaker 104.

[0053] The backup power supply 405 can enable the controller 406 to continue to control the exhaust fan 403 and the servo motor 310 to work normally after a power outage, and the backup power supply 405 is in a charging state under normal power supply, thereby ensuring that the power of the backup power supply 405 is continuously charged, and the current detector 407 can detect and send a power-off signal, so that the controller 406 can perform control work, and the controller 406 can know the weather conditions in the area based on the computer data.

[0054] like Figure 1-8 As shown, the electrical device 103 is disconnected from the external power supply by the circuit breaker 104. At this time, the current detector 407 detects the signal of power cut-off, so that the controller 406 controls the servo motor 310 to rotate, so that the screw 311 drives the synchronous rod 305 to move upward through the threaded hole 308, so that the slider 309 slides in the slide groove 302, so that the connecting arm 301 drives the multiple groups of baffles 206 to rotate, so that the air inlet groove 203 is sealed as a whole, and at the same time, the power of the exhaust fan 403 is increased to quickly exhaust the excess air in the sealed cabinet 001, so that the interior is in an oxygen-deficient state, thereby avoiding the occurrence of fire or controlling the spread of fire, and the baffle 206 in a normal state. 6 is in an open state, and the exhaust fan 403 above is in a low-power state, so that the exhaust fan 403 can exhaust the air inside the sealed cabinet 001 through exhaust, and send fresh air in through the air inlet slot 203, so as to complete the air circulation, and when the sealed cabinet 001 is placed outdoors, the baffle 206 can control its opening amplitude according to the outdoor rainfall, so as to achieve the effect of rain protection. Through this structure, the power supply inside the sealed cabinet 001 can be cut off to protect the electrical device 103, and the fire inside the sealed cabinet 001 can be effectively avoided, and this structure can be reused, which greatly improves the safety of use.

[0055] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electrical cabinet with a power-off protection mechanism, comprising a sealed cabinet body (001), characterized in that: A cabinet door (101) is rotatably connected to one side of the sealed cabinet (001), a mounting plate (102) is installed in the sealed cabinet (001), an electrical component (103) is installed on one side of the mounting plate (102), a circuit breaker (104) is installed between the electrical component (103) and a power source, and the circuit breaker (104) is connected to one side of the mounting plate (102); A sealing protection component (002) is arranged in the sealing cabinet (001) and is used to seal the sealing cabinet (001); A driving assembly (003) is disposed in the sealing protection assembly (002) and is used to drive the sealing protection assembly (002) to open and close; The exhaust control component (004) is arranged above the sealed cabinet (001) and is used to exhaust the air in the sealed cabinet (001).

2. The electrical cabinet with a power-off protection mechanism according to claim 1, characterized in that: The sealing protection assembly (002) comprises a sealing ring (201), the sealing ring (201) being installed on the inner side of the cabinet door (101), a sealing groove (202) being provided on one side of the opening of the sealing cabinet body (001), and the sealing ring (201) and the sealing groove (202) being embedded and fitted.

3. The electrical cabinet with a power-off protection mechanism according to claim 2, characterized in that: The sealed cabinet (001) has symmetrically arranged air inlet slots (203) on its inner wall, and two groups of air inlet slots are sequentially arranged downwards, and a filter grille plate (204) is installed in each group of the air inlet slots (203). The sealed cabinet (001) has symmetrically arranged connecting frames (205) on its outer side, and two groups of air inlet slots are sequentially arranged downwards, and the interior of the connecting frames (205) completely covers the air inlet slots (203).

4. The electrical cabinet with a power-off protection mechanism according to claim 3, characterized in that: A plurality of groups of baffles (206) are rotatably connected inside the connection frame (205), and overlapping grooves (207) are provided on upper and lower sides of the baffles (206). The overlapping grooves (207) are staggered, and the overlapping grooves (207) of each group of baffles (206) are mutually embedded.

5. The electrical cabinet with a power-off protection mechanism according to claim 1, characterized in that: The driving assembly (003) comprises a connecting arm (301), the connecting arm (301) is axially connected to one side of each group of baffles (206), and the connecting arm (301) is arranged outside the connecting frame (205), and a sliding groove (302) is opened on one side of the connecting arm (301).

6. The electrical cabinet with a power-off protection mechanism according to claim 5, characterized in that: A through hole (303) is provided on one side of the connection frame (205), a limit block (304) is symmetrically installed on the inner wall of the through hole (303), a synchronization rod (305) is connected through the through hole (303), a limit groove (306) is symmetrically provided on the synchronization rod (305), and the limit groove (306) is slidably connected to the corresponding limit block (304), a limit ring (307) is sleeved and fixed on the synchronization rod (305), and the limit ring (307) is in contact with the inside of the connection frame (205).

7. The electrical cabinet with a power-off protection mechanism according to claim 6, characterized in that: A threaded hole (308) is provided at the top of the synchronization rod (305); a plurality of sets of sliders (309) are installed on one side of the synchronization rod (305); and the sliders (309) are slidably connected to the corresponding slide grooves (302); a servo motor (310) is installed above the connection frame (205); a screw rod (311) is installed at the output end of the servo motor (310), and the screw rod (311) is threadedly connected to the threaded hole (308).

8. The electrical cabinet with a power-off protection mechanism according to claim 1, characterized in that: The exhaust control component (004) comprises an air outlet slot (401), wherein the air outlet slot (401) is opened above the sealed cabinet (001), wherein a plurality of groups of partitions (402) are sequentially installed in the air outlet slot (401), and each group of partitions (402) is distributed in an "eight" shape, and the "eight" openings of the partitions (402) face the inside of the sealed cabinet (001), wherein an exhaust fan (403) is installed above the air outlet slot (401), and wherein a rainproof box (404) is installed above the sealed cabinet (001), and the exhaust fan (403) is arranged in the rainproof box (404).

9. The electrical cabinet with a power-off protection mechanism according to claim 8, characterized in that: A backup power supply (405) is installed on the inner wall of the sealed cabinet (001), and the backup power supply (405) is linearly connected to the exhaust fan (403) and the servo motor (310), and the backup power supply (405) is linearly connected to an external power supply in a charging manner. A controller (406) is installed on one side of the backup power supply (405), and the controller (406) is linearly connected to the exhaust fan (403) and the servo motor (310). A current detector (407) is linearly connected to one side of the controller (406), and the current detector (407) is installed on one side of the mounting plate (102), and the current detector (407) is linearly connected to the circuit breaker (104).

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