Emergency pressure relief intelligent lock switch cabinet

Abstract

The invention relates to the technical field of switch cabinet pressure relief, in particular to an emergency pressure relief intelligent lock switch cabinet. The cabinet comprises a cabinet body and a pressure relief cover plate arranged at the top of the cabinet body, and further comprises a buffer flow guide mechanism and a gas pre-collection mechanism, and the gas pre-collection mechanism is used for blowing pre-collected gas to the buffer flow guide mechanism when high pressure occurs in the cabinet body; the buffer flow guide mechanism is located in a lower buffer opening and an upper buffer opening which are formed in the side wall of the cabinet body; in the emergency pressure relief intelligent lock switch cabinet, the first buffer flow guide piece in the lower buffer port and the second buffer flow guide piece in the upper buffer port can be automatically opened when high voltage occurs, on one hand, the phenomenon of local high voltage in the cabinet body is reduced, and on the other hand, the safety of the switch cabinet is improved. The first buffer flow guide part and the second buffer flow guide part can be matched with gas after being opened to guide the gas in the cabinet body, so that the frequency of fault shutdown is reduced, and the purpose of saving electricity is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinet pressure relief, and in particular to an emergency pressure relief smart lock switch cabinet. Background Art

[0002] Smart lock switchgear is a power distribution device that integrates modern information technology, automated control, and power equipment management technologies. It not only provides the basic functions of traditional switchgear, such as switching and protection, but also supports remote control and one-touch sequential control. Through a network connection, users can remotely operate the device anytime, anywhere via a mobile phone, computer, or other terminal device, including turning it on and off and adjusting parameters, providing a safer, more efficient, and more convenient power experience.

[0003] During switchgear operation, a primary circuit short-circuit fault can occur due to various reasons (such as short circuits, insulation aging, and human error). Under short-circuit currents of tens of kiloamperes, high-temperature, high-pressure gases are instantly generated. If these gases cannot be effectively released quickly within the confined cabinet, they can cause the switchgear to explode, damaging adjacent switchgear and potentially endangering personnel. Therefore, effective pressure relief measures must be considered during switchgear design.

[0004] Switchgear uses pressure relief to promptly release internal pressure, preventing explosions or damage to equipment caused by short circuits or overloads. This improved equipment reliability reduces energy waste caused by downtime (e.g., system restarts, backup power switching, etc.), thus saving energy.

[0005] The most common pressure relief method currently used in switchgear is to install a pressure relief cover on each compartment of the switchgear, secured with a metal screw on one end and a nylon screw on the other. When an arc fault occurs, the nylon screw breaks, releasing the pressure immediately, while the metal screw prevents the pressure relief cover from flying and injuring anyone. However, this current pressure relief method has the following problems: On the one hand, the large number of components in the cabinet can easily affect the flow of gas. When the instantaneously generated high-temperature and high-pressure gas is far away from the pressure relief cover, it is difficult for the high-temperature and high-pressure gas to flow to the pressure relief cover in time, causing the local pressure in the cabinet to be too high for a short period of time, causing other equipment to malfunction and restart, resulting in power loss, which is not conducive to saving electricity. On the other hand, after the pressure relief cover is opened, although the high-pressure gas can be discharged through the pressure relief cover, the gas inside the cabinet lacks the power to flow, resulting in some high-temperature gas still existing in the cabinet, thereby affecting the life of other components in the cabinet. In addition, since the high temperature cannot be discharged in time, it is easy to cause fire, or still cause fault shutdown, requiring the system to be frequently restarted or switched to the backup power supply, resulting in power loss, which is not conducive to saving electricity. Summary of the Invention

[0006] The purpose of the present invention is to provide an emergency pressure relief smart lock switch cabinet, which solves the problems raised in the above background technology, namely, the problem that the local pressure of the cabinet is too high in a short time and some high-temperature gases are difficult to be quickly discharged from the cabinet, by arranging a buffer diversion mechanism in the lower buffer port and the upper buffer port, and utilizing the buffer diversion mechanism to relieve pressure and guide the gas.

[0007] To achieve the above-mentioned purpose, the emergency pressure relief smart lock switch cabinet includes a cabinet body and a pressure relief cover plate arranged on the top of the cabinet body, and also includes a buffer guide mechanism and a pre-gas collection mechanism, wherein: The pre-gas collection mechanism is used to blow the pre-collected gas toward the buffer guide mechanism when high pressure appears inside the cabinet; The buffer guide mechanism is located in the lower buffer opening and the upper buffer opening provided on the side wall of the cabinet, and the buffer guide mechanism includes a plurality of guide plates arranged in a longitudinal array, and the guide plates have a free state and a compressed state; In the free state, the multiple guide plates contact each other to close the lower buffer port and the upper buffer port; in the pressurized state, the multiple guide plates separate from each other to open the lower buffer port and the upper buffer port, and the guide plates guide the gas at the lower buffer port and the upper buffer port, so that the gas enters the cabinet from the lower buffer port and is then discharged through the upper buffer port; wherein, the pressurized state is the state when the guide plates are affected by the high-pressure gas inside the cabinet.

[0008] Moreover, under the pressurized state, the bottom end of the guide plate located in the lower buffer port protrudes from the outside of the cabinet, and is used to guide the gas at the lower buffer port to the inside of the cabinet; the bottom end of the guide plate located in the upper buffer port protrudes from the inside of the cabinet, and is used to cooperate with the gas at the upper buffer port to extract the gas inside the cabinet, so that the gas inside the cabinet forms convection.

[0009] In the above technical solution, the deflector seals the lower and upper buffer ports in a free state to maintain a sealed environment within the cabinet. However, when under pressure, the deflector automatically opens to partially relieve pressure within the cabinet and also directs the airflow by changing its angle, thereby assisting in pressure relief while accelerating air flow within the cabinet.

[0010] On this basis, the buffer and guide mechanism also includes an installation frame and a plurality of rotating shafts rotatably arranged in the installation frame, and the installation frame is arranged in the lower buffer port and the upper buffer port; the plurality of rotating shafts are arranged in a longitudinal array; one end of the guide plate corresponding to the lower buffer port is fixedly connected to the corresponding rotating shaft; the guide plate corresponding to the upper buffer port slides through the corresponding rotating shaft; and also includes a limiting member for maintaining the guide plate in a pressurized state.

[0011] The limiting member includes a limiting groove and a limiting plate with one end extending into the limiting groove. The limiting plate is fixedly arranged on one side of the mounting frame. One end of the rotating shaft protrudes from the side wall of the mounting frame and is located below the limiting plate. The limiting groove is arranged on the outer ring of the rotating shaft. One side of the limiting plate is magnetically engaged with one side of the limiting groove to maintain the guide plate in a pressurized state.

[0012] This structural design: the guide plate is fixedly connected to the rotating shaft to guide the gas into the cabinet; the guide plate is slidably connected to the rotating shaft to guide the gas out of the cabinet. Through the mutual cooperation of these two sets of guide plates, the rapid flow of gas in the cabinet is achieved.

[0013] On this basis, the pre-gas collection mechanism includes a piston cylinder fixedly arranged on the side wall of the cabinet and a piston slidably arranged inside the piston cylinder, and a return spring is arranged between the piston and the piston cylinder; the bottom of the piston cylinder is connected to an exhaust pipe arranged below the buffer guide mechanism, and the exhaust port of the exhaust pipe is parallel to the outside of the cabinet; the top of the piston is provided with a clamping plate in an eccentric manner, and the clamping plate falls on or detaches from the top of the piston cylinder by rotating; and it also includes a driving member for driving the clamping plate to rotate.

[0014] Here, the gas is collected in advance by the piston, so that when high pressure occurs, the collected gas can be quickly discharged, thereby cooperating with the guide plate.

[0015] In another technical solution, when the limiting plate abuts against one end of the limiting groove, two adjacent guide plates are in a non-contact state.

[0016] This technical solution can partially open the lower and upper buffer ports, and the guide plate can prevent rainwater from entering the cabinet. On the one hand, it can achieve heat dissipation of the cabinet under normal conditions, and on the other hand, it can achieve a waterproof effect.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In this emergency pressure relief smart lock switch cabinet, the first buffer guide in the lower buffer port and the second buffer guide in the upper buffer port can automatically open when high pressure occurs. On the one hand, the phenomenon of local high pressure inside the cabinet is reduced. On the other hand, the first buffer guide and the second buffer guide can cooperate with the gas after opening to guide the gas inside the cabinet, thereby realizing the rapid discharge of the gas inside the cabinet, thereby reducing the number of fault shutdowns and achieving the purpose of saving electricity.

[0018] 2. In this emergency pressure relief smart lock switch cabinet, the first and second buffer guide members can also open the lower and upper buffer ports under normal conditions to achieve heat dissipation within the cabinet. In addition, the opened first and second buffer guide members can block external water sources, achieving a waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the cabinet of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the cabinet of the present invention; Figure 4 It is a structural schematic diagram of the first buffer guide member of the present invention; Figure 5 This is a schematic diagram of the working state of the first guide plate of the present invention; Figure 6 is a structural schematic diagram of the second buffer guide member of the present invention; Figure 7 This is a schematic diagram of the working state of the second guide plate of the present invention; Figure 8 The structure diagram of the limiting groove of the present invention is shown in FIG. Figure 1 ; Figure 9 The structure diagram of the limiting groove of the present invention is shown in FIG. Figure 2 ; Figure 10 It is a structural schematic diagram of the pre-gas collection mechanism of the present invention; Figure 11 It is a structural schematic diagram of the piston of the present invention; Figure 12 Schematic diagram of the gas flow of the present invention; Figure 13 The structure diagram of the limiting groove of the present invention is shown in FIG. Figure 3 ; Figure 14 It is a structural schematic diagram of the first guide plate of the present invention.

[0020] The meaning of each number in the figure is: 100. Cabinet body; 101. Pressure relief cover; 102. Lower buffer port; 103. Upper buffer port; 110. First buffer guide member; 111. First mounting frame; 112. First rotating shaft; 113. First guide plate; 120. Second buffer guide member; 121. Second mounting frame; 122. Second rotating shaft; 123. Second guide plate; 130. Pre-gas collection mechanism; 131. Piston cylinder; 132. Piston; 133. Return spring; 134. Exhaust pipe; 135. Clamping plate; 136. Push plate; 140. Limit plate; 141. Limit groove. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] Aiming at the problem that the local pressure of the cabinet 100 is too high in a short period of time and some high-temperature gases are difficult to be quickly discharged from the cabinet 100, the present invention provides an emergency pressure relief smart lock switch cabinet. Figure 1 As shown, the switchgear includes a cabinet 100, with a pressure relief duct provided at the top of the cabinet 100. A pressure relief cover 101 is provided at the top of the pressure relief duct. One end of the pressure relief cover 101 is fixed to the top of the cabinet 100 with a metal screw, and the other end is fixed to the top of the cabinet 100 with a nylon screw. When an arc fault occurs, the nylon screw disconnects, releasing the internal pressure of the cabinet 100 in a timely manner, while the metal screw prevents the pressure relief cover 101 from flying and injuring anyone.

[0025] The switch cabinet also includes a buffer guide mechanism and a pre-gas collection mechanism 130. The pre-gas collection mechanism 130 is set on the side wall of the cabinet 100 and is used to blow the pre-collected gas to the cabinet 100 when high pressure appears inside the cabinet 100. Figure 2 The gas is blown out in the lower buffer port 102 and the upper buffer port 103, and the gas blowing direction is parallel to the side wall of the cabinet 100.

[0026] The buffer guide mechanism is set Figure 2In the lower buffer port 102 and the upper buffer port 103, the buffer guide mechanism includes a plurality of guide plates arranged in a longitudinal array. In addition, in the present invention, the guide plates have a free state and a compressed state. In the free state, the plurality of guide plates contact each other to close the lower buffer port 102 and the upper buffer port 103 (refer to FIG. Figure 3 ); Under pressure, the multiple guide plates are separated from each other to open the lower buffer port 102 and the upper buffer port 103 (reference Figure 12 Specifically, the free state refers to the state of the guide plate when it is not affected by external factors, and the pressurized state refers to the state of the guide plate when it is affected by the high-pressure gas inside the cabinet 100. In the pressurized state, the guide plate guides the gas at the lower buffer port 102 and the upper buffer port 103, so that the gas enters the cabinet 100 through the lower buffer port 102 and is then discharged through the upper buffer port 103.

[0027] Specific reference Figure 12 Under pressure, the bottom end of the guide plate located in the lower buffer port 102 protrudes from the outside of the cabinet 100 (i.e., the guide plate is inclined toward the outside of the cabinet 100), and is used to guide the gas at the lower buffer port 102 to the inside of the cabinet 100; the bottom end of the guide plate located in the upper buffer port 103 protrudes from the inside of the cabinet 100 (i.e., the guide plate is inclined toward the inside of the cabinet 100), and is used to cooperate with the gas at the upper buffer port 103 to extract the gas inside the cabinet 100, so that the gas inside the cabinet 100 forms convection.

[0028] In the above description, the positions of the lower buffer opening 102 and the upper buffer opening 103 can be flexibly adjusted according to actual conditions, so they will not be described in detail here.

[0029] In order to facilitate the understanding of the buffer guide mechanism, the present invention will be described as a first buffer guide member 110 and a second buffer guide member 120. The first buffer guide member 110 is arranged at Figure 2 In the lower buffer port 102, the second buffer guide 120 is arranged Figure 2 The first and second buffer deflectors 110 and 120 have similar structures, each including a mounting frame, multiple rotating shafts rotatably disposed within the mounting frame, and deflectors connected to the rotating shafts. The difference lies in the connection between the deflectors and the rotating shafts. The structures of the first and second buffer deflectors 110 and 120 are described in detail below: like Figure 4As shown, the first buffer guide 110 includes a first installation frame 111 installed in the lower buffer port 102, a plurality of first rotating shafts 112 rotatably arranged in the first installation frame 111, and a first guide plate 113 with one end fixedly connected to the outer ring of the first rotating shaft 112; wherein the plurality of first rotating shafts 112 are arranged in a longitudinal array. Figure 5 As shown, under normal conditions (i.e., free state), under the action of the gravity of the first guide plate 113, the bottom end of the first guide plate 113 located above will rest on the top of the first guide plate 113 located below (or on the outer ring of the first rotating shaft 112 located below), thereby sealing the interior of the first installation frame 111 and preventing external pollutants from entering the interior of the cabinet 100. When high pressure appears inside the cabinet 100 (i.e., pressurized state), due to the inconsistent pressure between the inside and outside of the cabinet 100, under the action of the pressure difference, the gas will push the first guide plate 113 toward the outside of the cabinet 100, thereby separating the multiple first guide plates 113 from each other and opening the first installation frame 111. After opening, the bottom end of the first guide plate 113 protrudes from the outside of the first installation frame 111 (the outside of the first installation frame 111 is flush with the outside of the cabinet 100), and the protruding distance d can be adaptively adjusted according to the position of the gas. In order to maintain the first guide plate 113 in Figure 5 In the state of the right half of the first guide plate 113, the present invention limits the first guide plate 113 after opening by setting a limiting member to be described in detail below.

[0030] like Figure 6 As shown, the second buffer guide 120 includes a second installation frame 121 installed in the upper buffer port 103, a plurality of second rotating shafts 122 rotatably arranged in the second installation frame 121, and a second guide plate 123 with one end fixedly connected to the outer ring of the second rotating shaft 122; wherein the plurality of second rotating shafts 122 are arranged in a longitudinal array; the second guide plate 123 is arranged to slide through the second rotating shaft 122. Figure 7 As shown, both ends of the second guide plate 123 are bent to one side to form a protrusion, which prevents the second guide plate 123 from being separated from the second rotating shaft 122. Figure 7 In the normal state (i.e., free state), under the action of the gravity of the second guide plate 123, the second guide plate 123 slides down so that its bottom end rests on the top of the second guide plate 123 below (or rests on the outer ring of the second rotating shaft 122 located below), thereby sealing the interior of the second installation frame 121 and preventing external pollutants from entering the interior of the cabinet 100. When high pressure appears inside the cabinet 100 (i.e., pressurized state), due to the inconsistent pressure between the inside and outside of the cabinet 100, the gas will push the second guide plate 123 toward the outside of the cabinet 100 under the action of the pressure difference. Since the high-pressure gas will be formed in an instant, the second guide plate 123 will have inertia to achieve the purpose of pushing it toward the outside of the cabinet 100. Figure 7The second guide plates 123 are rotated in the direction of the hollow arrow to separate from each other, and the second installation frame 121 is opened. Then, under the action of gravity, the second guide plates 123 slide toward the inside of the second installation frame 121 to form a Figure 7 In order to maintain the first guide plate 113 in the right half of the state. Figure 7 In the state of the right half of the second guide plate 123, a limiting member is also provided here to limit the second guide plate 123 after opening.

[0031] Specifically, the limiting member includes a limiting plate 140 and a limiting slot 141, wherein one end of the limiting plate 140 extends into the limiting slot 141 to limit the rotation range of the limiting slot 141, and one side of the limiting plate 140 is magnetically engaged with one side of the limiting slot 141.

[0032] Example 1, as Figure 6 In the embodiment shown, the limiting plate 140 is fixedly arranged on one side of the second mounting frame 121, one end of the second rotating shaft 122 protrudes from the side wall of the second mounting frame 121 and is located below the limiting plate 140, and the limiting groove 141 is arranged on the outer ring of the second rotating shaft 122. The setting position of the limiting groove 141 is shown in FIG. Figure 8 As shown in the figure, under normal conditions, the limiting plate 140 contacts the left side of the limiting groove 141, so that the second guide plate 123 closes the second installation frame 121; when high pressure appears inside the cabinet 100, the limiting plate 140 and the right side of the limiting groove 141 are magnetically engaged, so that the second guide plate 123 opens the second installation frame 121 and maintains the second guide plate 123. Figure 8 The status shown in the middle right half.

[0033] like Figure 4 In the embodiment shown, the limiting plate 140 is fixedly arranged on one side of the first mounting frame 111, one end of the first rotating shaft 112 protrudes from the side wall of the first mounting frame 111 and is located below the limiting plate 140, and the limiting groove 141 is arranged on the outer ring of the first rotating shaft 112. The setting position of the limiting groove 141 is shown in FIG. Figure 9 As shown in the figure, under normal conditions, the limiting plate 140 contacts the left side of the limiting groove 141, so that the first guide plate 113 closes the first installation frame 111; when high pressure appears inside the cabinet 100, the limiting plate 140 and the right side of the limiting groove 141 are magnetically engaged, so that the first guide plate 113 opens the first installation frame 111 and maintains the first guide plate 113. Figure 9 The status shown in the middle right half.

[0034] It should be understood that the size of the limiting groove 141 is adaptively set according to the required rotation angle of the second rotating shaft 122 or the second installation frame 121. Figure 8 and Figure 9 The state of the limiting groove 141 in.

[0035] It is worth noting that since the rotation range of the first rotating shaft 112 is small, the outer ring of the first rotating shaft 112 is set to be protruding outward, which can increase the distance between the limiting plate 140 and avoid the limiting plate 140 always generating magnetic attraction with the right side of the limiting groove 141.

[0036] It can be seen that the first buffer guide 110 in the lower buffer port 102 and the second buffer guide 120 in the upper buffer port 103 can automatically open when high pressure occurs. On the one hand, the phenomenon of local high pressure inside the cabinet 100 is reduced. On the other hand, the first buffer guide 110 and the second buffer guide 120 can cooperate with the gas after opening to guide the gas inside the cabinet 100, thereby realizing the rapid discharge of the gas inside the cabinet 100 to avoid the internal temperature of the cabinet 100 being too high, thereby reducing the number of fault shutdowns and achieving the purpose of saving electricity.

[0037] like Figure 10 As shown, the pre-gas collection mechanism 130 includes a piston cylinder 131 fixedly mounted on the side wall of the cabinet 100 and a piston 132 slidably mounted inside the piston cylinder 131. A return spring 133 is provided at the bottom of the piston 132 and inside the piston cylinder 131 to elastically connect the two. The bottom of the piston cylinder 131 is connected to an exhaust pipe 134, which is arranged below the first buffer guide 110 and the second buffer guide 120, and the exhaust port of the exhaust pipe 134 is parallel to the outside of the cabinet 100. Figure 11 As shown, a clamping plate 135 is provided on the top of the piston 132 in an eccentric manner, and the clamping plate 135 falls on or detaches from the top of the piston cylinder 131 by rotating. At the same time, the pre-gas collection mechanism 130 also includes a driving member for driving the clamping plate 135 to rotate.

[0038] In some embodiments, the driving member can be a motor, cylinder or other equipment. By setting a pressure sensor inside the cabinet 100, when the pressure sensor detects that the pressure inside the cabinet 100 exceeds the preset pressure, the motor, cylinder or other equipment drives the card plate 135 to rotate, so that the card plate 135 is separated from the top of the piston cylinder 131.

[0039] In other embodiments, the drive member comprises a push plate 136, which slides within a sliding slot provided in the side wall of the cabinet 100. The volume of the push plate 136 corresponds to that of the sliding slot, and one side of the push plate 136 abuts against the side wall of the retaining plate 135 via a push rod. Thus, when the pressure inside the cabinet 100 is too high, since one side of the push plate 136 is exposed to the outside air, the internal air pressure of the cabinet 100 pushes the push plate 136 toward the retaining plate 135, causing the retaining plate 135 to rotate and disengage from the top of the piston cylinder 131. This design allows for a mechanical drive that is independent of electricity, thereby increasing stability.

[0040] The working principle of the present invention is described in detail below: First, the piston 132 is moved up to the top of the piston cylinder 131 and the clamping plate 135 is rotated so that the clamping plate 135 falls on the top of the piston cylinder 131, thereby preventing the piston 132 from moving down. At this time, the return spring 133 is in an extended state. Then, refer to Figure 3 Under normal conditions, the first guide plate 113 and the second guide plate 123 close the lower buffer port 102 and the upper buffer port 103. When high pressure appears inside the cabinet 100, the first guide plate 113 and the second guide plate 123 will be pushed outward from the cabinet 100 under the action of pressure, and the corresponding first rotating shaft 112 and the second rotating shaft 122 will also rotate synchronously, causing one side of the limiting groove 141 to rotate toward the limiting plate 140, and then one side of the limiting plate 140 is magnetically attached to one side of the limiting groove 141, maintaining the first rotating shaft 112 and the second guide plate 123 in the position. Figure 12 At this time, the lower buffer port 102 and the upper buffer port 103 will discharge part of the high-pressure gas. Since the lower buffer port 102 and the upper buffer port 103 are located at different positions, the phenomenon of local high pressure inside the cabinet 100 is reduced. Then, the pressure relief cover 101 is pushed open by the high-pressure gas.

[0041] At the same time, the high pressure inside the cabinet 100 will also force the driving part to work. At this time, the driving part drives the card plate 135 to rotate. At this time, the card plate 135 is separated from the top of the piston cylinder 131, so the return spring 133 rebounds and drives the piston 132 to move downward. The piston 132 moves downward to squeeze the air in the piston cylinder 131 into the exhaust pipe 134, and then it is discharged through the exhaust pipe 134.

[0042] refer to Figure 12 The exhaust port of exhaust pipe 134 shrinks, and under the elastic action of return spring 133, the gas is compressed within exhaust pipe 134 and piston cylinder 131, thereby accelerating the flow rate of the gas discharged from the exhaust port. The gas discharged through exhaust pipe 134 is parallel to the side wall of cabinet 100. When the gas flows to first guide plate 113, because first guide plate 113 protrudes from the side wall of cabinet 100 and is inclined toward the outside of cabinet 100, the gas discharged through exhaust pipe 134 is guided by first guide plate 113 into the interior of cabinet 100. When the gas flows to the second guide plate 123, the gas is quickly discharged through the exhaust pipe 134. When the gas passes through the second guide plate 123 quickly, negative pressure is generated at the second guide plate 123, thereby extracting the gas inside the cabinet 100. The second guide plate 123 is inclined downward inside the cabinet 100, so that the second guide plate 123 guides the gas and helps the high-temperature gas in the middle of the cabinet 100 to be quickly discharged.

[0043] At this time, the gas enters the cabinet 100 through the lower buffer port 102 and flows upward, so that part of the gas is discharged through the pressure relief cover 101, and the other part of the gas is extracted through the upper buffer port 103, thereby accelerating the discharge of high-temperature gas inside the cabinet 100.

[0044] It should be understood that the volume of the first buffer guide 110 and the second buffer guide 120 can be set according to the actual size of the cabinet 100. And the number of the first guide plate 113 and the second guide plate 123 does not need to be the same. Figure 12 Specifically, the minimum number of the first guide plate 113 and the second guide plate 123 is 1.

[0045] Example 2, as Figure 13 As shown, in this embodiment, the state of the first guide plate 113 and the second guide plate 123 is adjusted by changing the opening angle of the limiting groove 141. Taking the second guide plate 123 as an example, Figure 13 The left part of the diagram is the state of the second guide plate 123 in Example 1. Figure 13 The right portion of the figure shows the state of the second guide plate 123 in Example 2. The opening angle A1 of the limiting groove 141 in Example 1 is greater than the opening angle A2 of the limiting groove 141 in Example 2. That is, in Example 2, when the limiting plate 140 abuts against one end of the limiting groove 141, two adjacent second guide plates 123 are in a non-contact state.

[0046] Further references Figure 14 With this design, when both the first and second deflectors 113, 123 are in a free state, a gap a can be found between two adjacent first deflectors 113, and a gap b can be found between two adjacent second deflectors 123. Furthermore, the bottoms of the first and second deflectors 113, 123 are tilted toward the outside of the cabinet 100, providing a waterproofing effect. This allows the first and second deflectors 113, 123 to assist in dissipating heat within the cabinet 100.

[0047] In specific operation, when high pressure is not generated inside the cabinet 100, the lower buffer port 102 and the upper buffer port 103 act as heat dissipation holes, that is, the gas enters the cabinet 100 through the lower buffer port 102 and then is discharged through the upper buffer port 103. During this process, the first guide plate 113 and the second guide plate 123 are waterproof. When high pressure is generated inside the cabinet 100, part of the high-pressure gas is discharged through the gap a and the gap b. Since the high-pressure gas is generated quickly, the gas will also push the first guide plate 113 and the second guide plate 123 to rotate to the left during the discharge process. Figure 12 Status in.

[0048] In summary, the first and second buffer guide members 110, 120 can also open the lower and upper buffer openings 102, 103 under normal conditions to achieve heat dissipation inside the cabinet 100. Furthermore, the opened first and second buffer guide members 110, 120 can block external water sources, achieving a waterproof effect.

[0049] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency pressure relief smart lock switch cabinet, comprising a cabinet body (100) and a pressure relief cover plate (101) arranged on the top of the cabinet body (100), characterized in that: It also includes a buffering and guiding mechanism and a pre-gas collecting mechanism (130), wherein: The pre-gas collection mechanism (130) is used to blow pre-collected gas toward the buffer guide mechanism when high pressure occurs inside the cabinet (100); The buffer and flow guiding mechanism is located in a lower buffer opening (102) and an upper buffer opening (103) provided on the side wall of the cabinet (100), and the buffer and flow guiding mechanism comprises a plurality of flow guiding plates arranged in a longitudinal array, and the flow guiding plates have a free state and a compressed state; In the free state, the plurality of guide plates contact each other to close the lower buffer port (102) and the upper buffer port (103); in the pressurized state, the plurality of guide plates detach from each other to open the lower buffer port (102) and the upper buffer port (103), and the guide plates guide the gas at the lower buffer port (102) and the upper buffer port (103), so that the gas enters the cabinet (100) from the lower buffer port (102) and is then discharged through the upper buffer port (103); The pressurized state refers to the state in which the guide plate is acted upon by the high-pressure gas inside the cabinet (100).

2. The emergency pressure relief smart lock switch cabinet according to claim 1, characterized in that: In the stressed state, The bottom end of the guide plate located in the lower buffer port (102) protrudes from the outside of the cabinet (100) and is used to guide the gas at the lower buffer port (102) to the inside of the cabinet (100); The bottom end of the guide plate located in the upper buffer port (103) protrudes from the inner side of the cabinet (100) and is used to cooperate with the gas at the upper buffer port (103) to extract the gas inside the cabinet (100), so that the gas inside the cabinet (100) forms convection.

3. The emergency pressure relief smart lock switch cabinet according to claim 1, characterized in that: The direction in which the pre-gas collection mechanism (130) blows out gas is parallel to the side wall of the cabinet (100).

4. The emergency pressure relief smart lock switch cabinet according to claim 2, characterized in that: The buffer and flow guiding mechanism further comprises a mounting frame and a plurality of rotating shafts rotatably arranged in the mounting frame, wherein the mounting frame is arranged in the lower buffer opening (102) and the upper buffer opening (103); the plurality of rotating shafts are arranged in a longitudinal array; One end of the guide plate corresponding to the lower buffer port (102) is fixedly connected to the corresponding rotating shaft; The guide plate corresponding to the upper buffer port (103) slides through the corresponding rotating shaft; Also included is a limiting member for maintaining the guide plate in a compressed state.

5. The emergency pressure relief smart lock switch cabinet according to claim 4, characterized in that: The two ends of the guide plate corresponding to the upper buffer opening (103) are bent toward one side to form a bulge.

6. The emergency pressure relief smart lock switch cabinet according to claim 4, characterized in that: The limiting member comprises a limiting groove (141) and a limiting plate (140) with one end extending into the limiting groove (141); the limiting plate (140) is fixedly arranged on one side of the installation frame; one end of the rotating shaft protrudes from the side wall of the installation frame and is located below the limiting plate (140); the limiting groove (141) is arranged on the outer ring of the rotating shaft; One side of the limiting plate (140) is magnetically engaged with one side of the limiting groove (141) to maintain the guide plate in a compressed state.

7. The emergency pressure relief smart lock switch cabinet according to claim 1, characterized in that: The pre-gas collection mechanism (130) comprises a piston cylinder (131) fixedly arranged on the side wall of the cabinet (100) and a piston (132) slidably arranged inside the piston cylinder (131), and a return spring (133) is provided between the piston (132) and the piston cylinder (131); The bottom of the piston cylinder (131) is connected to an exhaust pipe (134) provided below the buffer guide mechanism, and the exhaust port of the exhaust pipe (134) is parallel to the outside of the cabinet (100); A clamping plate (135) is provided on the top of the piston (132) so as to rotate eccentrically, and the clamping plate (135) falls on or detaches from the top of the piston cylinder (131) by rotating; It also includes a driving member for driving the clamping plate (135) to rotate.

8. The emergency pressure relief smart lock switch cabinet according to claim 7, characterized in that: The driving member comprises a cylinder for driving the clamping plate (135) to rotate, and the cylinder is connected to a pressure sensor provided inside the cabinet (100).

9. The emergency pressure relief smart lock switch cabinet according to claim 7, characterized in that: The driving member comprises a push plate (136), the push plate (136) being slidably arranged in a sliding groove arranged on the side wall of the cabinet (100), and one side of the push plate (136) being pressed against the side wall of the clamping plate (135) via a push rod.

10. The emergency pressure relief smart lock switch cabinet according to claim 6, characterized in that: When the limiting plate (140) abuts against one end of the limiting groove (141), two adjacent guide plates are in a non-contact state.

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