Electrical apparatus

Abstract

The application discloses an electrical equipment and belongs to the technical field of electrical equipment. The electrical equipment comprises an equipment main body, a protective cover installed on the equipment main body and forming a protective cavity with the equipment main body, and a ventilation hole arranged on the protective cover; and a baffle is movably installed on the protective cover so that the ventilation hole is selectively opened. In the technical scheme, the combination of the equipment main body, the protective cover, the ventilation hole and the movable baffle can take into account the heat dissipation and dust prevention functions, thereby improving the adaptability of the electrical equipment, prolonging the service life and reducing the maintenance cost.

Description

Technical Field

[0001] This application belongs to the field of electrical equipment technology, and in particular relates to an electrical device. Background Technology

[0002] Circuit breakers are used in power systems for overload or short-circuit protection, and they generate high-temperature electric arcs when breaking circuits. Therefore, circuit breakers in related technologies typically dissipate heat through ventilation structures connected to the outside environment. However, existing circuit breaker protective covers are mostly fixed designs, with ventilation holes often open, resulting in insufficient protection and easy introduction of dust, moisture, or foreign objects. This can cause corrosion of internal electronic components, short circuits, or decreased insulation performance, affecting service life and indicating room for improvement. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the related art. To this end, this application proposes an electrical device that can simultaneously achieve heat dissipation and dust prevention functions.

[0004] In a first aspect, this application provides an electrical device, comprising:

[0005] Equipment body;

[0006] A protective cover is installed on the main body of the equipment and forms a protective cavity with the main body of the equipment. The protective cover is provided with ventilation holes.

[0007] A baffle is movably mounted on the protective cover to allow the vent to be selectively opened.

[0008] In the above technical solution, the combination of the main body of the equipment, the protective cover, the vent, and the movable baffle can take into account both heat dissipation and dust prevention functions, thereby improving the adaptability of the electrical equipment, extending its service life, and reducing maintenance costs.

[0009] According to one embodiment of this application, when the main body of the device is not working and is normally powered on, the baffle blocks the vent hole;

[0010] or,

[0011] When the main body of the device is broken, the baffle opens the vent.

[0012] In the above technical solution, the baffle can automatically change position according to the working state of the main body of the equipment, thereby controlling the opening and closing of the vent on the protective cover.

[0013] According to one embodiment of this application, the electrical device further includes an elastic element that applies an elastic force between the baffle and the protective cover to keep the baffle in a position that normally blocks the vent.

[0014] In the above technical solution, the elastic element has good adaptability and can self-adjust according to different loads or operating conditions. During operation, the elastic element will generate elastic deformation according to the force of the baffle and the protective cover, thereby providing adaptive adjustment for the system.

[0015] According to one embodiment of this application, the electrical equipment further includes a guide assembly, which is mounted on the protective cover and the baffle to allow the protective cover and the baffle to engage movably.

[0016] In the above technical solution, the guide component helps to ensure stable movement and precise docking between the protective cover and the baffle, reducing damage and safety hazards caused by improper assembly or usage deviation.

[0017] According to one embodiment of this application, the guide assembly includes a guide shaft and a guide sleeve, wherein the guide shaft and the guide sleeve are respectively installed in one of the baffle and the protective cover, and the guide shaft slides axially within the guide sleeve.

[0018] In the above technical solution, the movement path of the protective cover and the baffle can be precisely controlled by the cooperation of the guide shaft and the guide shaft sleeve, reducing unnecessary deviation or jamming.

[0019] According to one embodiment of this application, one end of the guide shaft is fixedly installed on the baffle or the protective cover, and the other end is provided with a retaining ring so that the guide shaft is located inside the guide shaft sleeve.

[0020] In the above technical solution, by using the retaining ring to fix the guide shaft, the protective cover or the baffle can slide smoothly along the predetermined track, reducing offset or jamming, and at the same time helping to maintain the precise fit between the guide shaft and the guide bushing.

[0021] According to one embodiment of this application, the main body of the device includes a switch, and an arc-extinguishing chamber is provided on the side of the switch facing the protective cover, the arc-extinguishing chamber being in communication with the protective cavity.

[0022] In the above technical solution, the arc-extinguishing chamber can effectively extinguish the electric arc. At the same time, through the connection between the arc-extinguishing chamber and the protective cavity, the gas or heat released by the arc-extinguishing chamber can be discharged in a timely manner, thereby reducing the risk of equipment damage, fire or explosion.

[0023] According to one embodiment of this application, the protective cover includes a first side plate, a second side plate, and a third side plate connected in sequence. At least one of the first side plate, the second side plate, and the third side plate is provided with the ventilation hole and is correspondingly equipped with the baffle.

[0024] In the above technical solution, the temperature and pressure inside the electrical equipment can be effectively controlled through the proper cooperation of the vent and the baffle, reducing the risk of damage to the electrical equipment due to overheating.

[0025] According to one embodiment of this application, at least one of the first side plate, the second side plate and the third side plate is provided with a plurality of ventilation holes, and the plurality of ventilation holes are spaced apart along the length direction of the side plate in which they are located.

[0026] In the above technical solution, the distributed ventilation holes can increase the air circulation area and reduce the airflow blockage problem caused by too few ventilation holes. At the same time, distributing the ventilation holes along the length of the side plate can maintain a balanced ventilation effect on the entire side plate surface, while promoting more balanced heat dissipation and reducing the risk of local overheating caused by heat accumulation.

[0027] According to one embodiment of this application, the baffle is provided with a through hole, and the projections of the through hole and the vent hole along the moving direction of the baffle do not overlap.

[0028] In the above technical solution, when the baffle is in contact with the protective cover, the through hole and the vent hole are not connected. The baffle blocks the vent hole, and the protective cover blocks the through hole, thereby improving the protective effect.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is one of the structural schematic diagrams of the electrical equipment provided in the embodiments of this application;

[0032] Figure 2 This is a second schematic diagram of the structure of the electrical equipment provided in the embodiments of this application;

[0033] Figure 3 This is the third schematic diagram of the electrical equipment provided in the embodiments of this application;

[0034] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0035] Figure 5 This is the fourth schematic diagram of the electrical equipment provided in the embodiments of this application;

[0036] Figure 6This is the fifth schematic diagram of the electrical equipment provided in the embodiments of this application;

[0037] Figure 7 This is the sixth schematic diagram of the electrical equipment provided in the embodiments of this application.

[0038] Figure label:

[0039] Electrical equipment 1;

[0040] Protective cover 10, protective cavity 110, vent 120;

[0041] First side plate 131, second side plate 132, third side plate 133;

[0042] Baffle 20, through hole 210;

[0043] Guide component 30;

[0044] Guide shaft 310, retaining ring 311, guide shaft sleeve 320;

[0045] Elastic element 40;

[0046] Equipment body 50. Detailed Implementation

[0047] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0048] This application aims to solve at least one of the technical problems existing in the related art. To this end, this application proposes an electrical device that can simultaneously achieve heat dissipation and dust prevention functions.

[0049] The following is for reference. Figures 1-5 The electrical device 1 according to an embodiment of this application is described.

[0050] like Figure 1 As shown, the electrical equipment 1 includes: equipment body 50, protective cover 10 and baffle 20, wherein the protective cover 10 is installed on the equipment body 50 and forms a protective cavity 110 with the equipment body 50, the protective cover 10 is provided with a vent hole 120, and the baffle 20 is movably installed on the protective cover 10 so that the vent hole 120 can be selectively opened.

[0051] The main body 50 is the core part of the entire electrical equipment 1, undertaking the main electrical work and control functions. For example, the electrical equipment 1 can be a circuit breaker, which can automatically disconnect the circuit when an overload or short circuit occurs in the circuit, protecting the electrical equipment 1 and personnel safety.

[0052] For example, the device body 50 typically includes electrical components and connecting circuits responsible for disconnecting and connecting current. For instance, the device body 50 may include a switch, which is one of the main components of a circuit breaker and is used to control the opening and closing of the circuit. Under normal operation, the switch remains in the closed state, allowing current to pass through. When an overload or short circuit occurs, the switch will automatically trip to cut off the current.

[0053] In actual operation, when the switch is in the ON state, the current flows normally. When the switch is switched from the ON state to the OFF state, an electric arc will be formed between the disconnected contacts inside the switch. The electric arc will cause high temperature and may damage the electrical equipment.

[0054] like Figure 1 As shown, the protective cover 10 is installed on the equipment body 50 to form a protective cavity 110. The main function of the protective cover 10 is to protect the equipment body 50 from the influence of the external environment. For example, the protective cover 10 is made of materials including but not limited to plastic, stainless steel, aluminum alloy or other composite materials, which can effectively isolate and protect the sensitive electrical components inside the equipment body 50.

[0055] In addition, the protective cover 10 is provided with a vent 120, which is mainly used to allow air circulation, which helps to dissipate heat from the electrical components inside the main body 50 of the equipment and reduces the risk of equipment damage or reduced efficiency due to overheating.

[0056] The baffle 20 is movably installed on the protective cover 10, forming an adjustable airflow between the vent 120 and the baffle 20. That is, the baffle 20 can control the opening and closing of the vent 120 by moving to adapt to different working conditions.

[0057] Specifically, the baffle 20 can move back and forth between a first position and a second position, such as... Figure 1 and Figure 2 As shown, when the baffle 20 is in the first position, the baffle 20 is in contact with the protective cover 10, and the vent 120 is blocked, preventing external dust from entering. Figure 3 and Figure 5 As shown, when the baffle 20 is in the second position, the baffle 20 is spaced apart from the protective cover 10, and the vent 120 is open to allow air circulation.

[0058] Circuit breakers are used in power systems for overload or short-circuit protection, and they generate high-temperature arcs when breaking circuits. Therefore, circuit breakers in related technologies typically dissipate heat through ventilation structures connected to the outside environment. However, existing circuit breaker protective covers are mostly fixed designs, with ventilation openings often open, resulting in insufficient protection and easy introduction of dust, moisture, or foreign objects. This can cause corrosion of internal electronic components, short circuits, or decreased insulation performance, affecting service life and indicating room for improvement. Furthermore, some protective covers employ a sealed design, providing dust and water protection, but this results in low heat dissipation efficiency, affecting equipment stability.

[0059] This embodiment combines the adjustable control of the vent 120 and the baffle 20. When the vent 120 is open, the movable baffle 20 helps to expel the heat inside the main body 50 of the equipment, reduces overheating, and improves the stability of the electrical equipment 1. At the same time, when the vent 120 is closed, unnecessary airflow is reduced, and pollution that may be caused by the entry of external air is reduced.

[0060] According to the embodiments of this application, the electrical equipment 1, through the combination of the equipment body 50, the protective cover 10, the vent 120 and the movable baffle 20, can take into account both heat dissipation and dust prevention functions, thereby improving the adaptability of the electrical equipment 1, extending its service life and reducing maintenance costs.

[0061] In some embodiments, such as Figure 1 and Figure 2 As shown, when the main body of the equipment 50 is not working or is normally powered on, the baffle 20 blocks the vent 120.

[0062] The protective cover 10 is installed on the main body 50 of the equipment to form a protective cavity 110. The baffle 20 is movably installed on the protective cover 10, forming an adjustable airflow between the vent 120 and the baffle 20. When the main body 50 of the equipment is not working or is normally powered on, the circuit breaker allows current to pass through, and the air pressure inside the protective cavity 110 is not much different from the outside air pressure. At this time, the baffle 20 is in the first position and is in contact with the protective cover 10. The vent 120 is blocked to prevent the entry of external dust.

[0063] Specifically, when the main body of the equipment 50 is powered on normally, the heat generated is relatively small, and closing the vent 120 has a weak impact on the main body of the equipment 50. When the main body of the equipment 50 is not working, no additional heat dissipation is required. Airflow can be reduced by closing the vent 120, thereby reducing the impact of external dust on the main body of the equipment 50.

[0064] In some embodiments, such as Figure 3 and Figure 5 As shown, when the main body of the equipment is broken at 50, the baffle 20 opens the vent 120.

[0065] The protective cover 10 is installed on the main body 50 of the equipment to form a protective cavity 110. The baffle 20 is movably installed on the protective cover 10, forming an adjustable airflow mode between the vent 120 and the baffle 20. When the main body 50 of the equipment switches from normal power-on to power-off, a high-temperature electric arc is generated inside the main body 50, which causes the air pressure inside the protective cavity 110 to rise, and is much greater than the external ambient air pressure. At this time, the baffle 20 begins to move from the first position to the second position under the drive of the air pressure difference, and the baffle 20 is separated from the protective cover 10, and the vent 120 is opened to allow airflow.

[0066] Understandably, the baffle 20 can automatically change position according to the working state of the main body 50 of the equipment, thereby controlling the opening and closing of the vent 120 on the protective cover 10.

[0067] In some embodiments, such as Figure 1 As shown, the electrical equipment 1 also includes an elastic element 40 that applies an elastic force between the baffle 20 and the protective cover 10 so that the baffle 20 is held in the position of blocking the vent 120 under normal conditions.

[0068] Specifically, the baffle 20 can move back and forth between a first position and a second position, such as... Figure 1 and Figure 2 As shown, when the baffle 20 is in the first position, the baffle 20 contacts the protective cover 10, blocking the vent 120 and preventing external dust from entering, such as... Figure 3 and Figure 5 As shown, when the baffle 20 is in the second position, the baffle 20 is spaced apart from the protective cover 10, and the vent 120 is open to allow air circulation.

[0069] When the main body of the equipment 50 is not working or is normally powered on, the main body of the equipment 50 does not generate a high-temperature electric arc, and the air pressure inside the protective cavity 110 is not much different from the outside air pressure. At this time, the elastic element 40 applies an elastic force between the baffle 20 and the protective cover 10, so that the baffle 20 is kept in the first position of blocking the vent 120 under normal conditions and in contact with the protective cover 10.

[0070] When the main body of the equipment 50 switches from normal power-on to power-off, a high-temperature electric arc is generated inside the main body of the equipment 50, which causes the air pressure inside the protective cavity 110 to rise and is much greater than the external ambient air pressure. At this time, there is a large air pressure difference on both sides of the baffle 20. The baffle 20 is subjected to a force that causes it to move away from the protective cover 10, which is greater than the elastic force applied by the elastic element 40. The baffle 20 overcomes the elastic force and moves from the first position to the second position. During the movement, the baffle 20 is separated from the protective cover 10, and the vent 120 is opened to allow air to circulate.

[0071] When the air pressure inside the protective cavity 110 decreases to atmospheric pressure, the elastic force applied by the elastic element 40 causes the baffle 20 to reset, thereby realizing the automatic control of the baffle 20.

[0072] It is understandable that the elastic element 40 has good adaptability and can self-adjust according to different loads or operating conditions. During operation, the elastic element 40 will undergo elastic deformation according to the force on the baffle 20 and the protective cover 10, thereby providing adaptive adjustment for the system. In some embodiments, such as Figure 1 and Figure 3 As shown, the electrical equipment 1 also includes a guide assembly 30, which is installed on the protective cover 10 and the baffle 20 so that the protective cover 10 and the baffle 20 can be movably engaged.

[0073] The guide assembly 30 is typically a sliding or rotating structure used to control the range of motion between the protective cover 10 and the baffle 20, allowing the guide assembly 30 to switch between free movement and fixed states.

[0074] The protective cover 10 is used to isolate and protect electrical components, reducing external interference or accidental contact. The baffle 20 is usually used to block or guide airflow and can also be used as a shielding element to reduce interference. The guide assembly 30 maintains the smooth movement between the protective cover 10 and the baffle 20, which can effectively reduce safety hazards caused by excessive vibration or improper operation.

[0075] For example, the guide assembly 30 is typically made of wear-resistant and corrosion-resistant materials, such as stainless steel, aluminum alloy and engineering plastics.

[0076] Understandably, the guide assembly 30 helps ensure stable movement and precise alignment between the protective cover 10 and the baffle 20, reducing damage and safety hazards caused by improper assembly or usage deviations.

[0077] In some embodiments, such as Figure 4 As shown, the guide assembly 30 includes a guide shaft 310 and a guide sleeve 320. The guide shaft 310 and the guide sleeve 320 are respectively installed in one of the baffle 20 and the protective cover 10, and the guide shaft 310 slides axially within the guide sleeve 320.

[0078] The guide shaft 310 is usually precisely fitted with the inner hole of the guide sleeve 320, and slides smoothly along the sliding path. The guide shaft 310 usually has high hardness and wear resistance to withstand the motion friction from the protective cover 10 or the baffle 20. At the same time, the guide shaft 310 helps the protective cover 10 and the baffle 20 maintain the correct relative position during movement, reducing offset or asymmetrical movement.

[0079] The guide sleeve 320 is typically a sleeve fixed to the protective cover 10 or the baffle 20, with its inner wall precisely machined to achieve a sliding fit with the guide shaft 310. The guide sleeve 320 can not only help the guide shaft 310 move stably in the axial direction, but also share a certain axial load.

[0080] For example, the guide bushing 320 is typically made of a material with a low coefficient of friction and high wear resistance, such as plastic, copper alloy or composite material, to maintain the stability and durability of the guide bushing 320 during long-term operation.

[0081] The guide shaft 310 and the guide sleeve 320 are usually fitted by a sliding fit, allowing the guide shaft 310 to move freely along the axial direction while maintaining a stable contact surface.

[0082] In addition, at least one guide component 30 is provided on the same side plate of baffle 20 or protective cover 10, and the guide components 30 are evenly distributed on the side plates of baffle 20 or protective cover 10 to improve the stability of baffle 20 during movement and reduce deviation. At the same time, the guide components 30 provided on adjacent baffle 20 or adjacent protective cover 10 side plates do not contact each other to reduce interference between adjacent baffle 20 during movement.

[0083] It is understandable that the movement path of the protective cover 10 and the baffle 20 can be precisely controlled by the cooperation of the guide shaft 310 and the guide shaft sleeve 320, reducing unnecessary deviations or jamming.

[0084] In some embodiments, the guide shaft 310 and the guide sleeve 320 have various mounting configurations, including but not limited to:

[0085] Example 1: The guide shaft 310 is installed on the baffle 20, and the guide shaft sleeve 320 is installed on the protective cover 10.

[0086] like Figure 1 and Figure 3 As shown, one end of the guide shaft 310 is fixedly installed on the side of the baffle 20 facing the protective cover 10, and the other end is a free end. The guide shaft sleeve 320 is fixedly installed inside the protective cover 10 and aligned with the guide shaft 310 in the direction of movement. The free end of the guide shaft 310 is set inside the protective cover 10 by other fixing structures and does not detach from the guide shaft sleeve 320 during movement.

[0087] Example 2: The guide sleeve 320 is installed on the baffle 20, and the guide shaft 310 is installed on the protective cover 10.

[0088] Specifically, one end of the guide shaft 310 is fixedly installed on the side of the protective cover 10 facing the baffle 20, and the other end is a free end. The guide shaft sleeve 320 is fixedly installed on the side of the baffle 20 away from the protective cover 10 and is aligned with the guide shaft 310 in the direction of movement. The free end of the guide shaft 310 is set outside the baffle 20 by other fixing structures and does not detach from the guide shaft sleeve 320 during movement.

[0089] In some embodiments, such as Figure 4 As shown, one end of the guide shaft 310 is fixedly installed on the baffle 20 or the protective cover 10, and the other end is provided with a retaining ring 311 so that the guide shaft 310 is located inside the guide shaft sleeve 320.

[0090] When one end of the guide shaft 310 is fixedly installed on the baffle 20 and the guide shaft sleeve 320 is installed on the protective cover 10, the other end of the guide shaft 310 is located inside the protective cover 10, and the retaining ring 311 is located inside the protective cover 10. When the guide shaft sleeve 320 is installed on the baffle 20 and one end of the guide shaft 310 is fixedly installed on the protective cover 10, the other end of the guide shaft 310 is located outside the baffle 20, and the retaining ring 311 is located outside the baffle 20.

[0091] One end of the guide shaft 310 is fixedly installed on the baffle 20 or the protective cover 10. The guide shaft 310 can be firmly connected to the baffle 20 or the protective cover 10 by bolts, welding or other fixing methods to form a fixed end. The fixed end of the guide shaft 310 can reduce the risk of displacement or loosening of the guide shaft 310 during use and help the precise fit between the guide shaft 310 and the guide shaft sleeve 320.

[0092] The retaining ring 311 is mainly used to limit the axial movement of the guide shaft 310. The retaining ring 311 is usually a ring structure and is fixedly installed at the free end of the guide shaft 310. The retaining ring 311 can prevent the guide shaft 310 from slipping out of the guide sleeve 320 due to excessive sliding, so that the guide shaft 310 is always located inside the guide sleeve 320, thereby maintaining the normal operation of the guide system.

[0093] It is understandable that by using the retaining ring 311 to fix the guide shaft 310, the protective cover 10 or the baffle 20 can slide smoothly along the predetermined track, reducing offset or jamming, and at the same time helping to maintain the precision fit between the guide shaft 310 and the guide sleeve 320.

[0094] In some embodiments, such as Figure 4 As shown, the elastic element 40 is elastically installed between the guide sleeve 320 and the retaining ring 311.

[0095] The elastic element 40 is elastically mounted on the guide shaft 310 and located between the guide shaft sleeve 320 and the retaining ring 311. It is mainly used to control the movement range of the protective cover 10 and the baffle 20, and can also be used to provide cushioning and absorb impact force.

[0096] For example, the elastic element 40 can be a spring, which is sleeved on the guide shaft 310.

[0097] In actual work process, such as Figure 1 As shown, in the initial state, the baffle 20 is in contact with the protective cover 10, such as Figure 3 As shown, when the baffle 20 begins to move away from the protective cover 10, the elastic element 40 is in a compressed state. When the baffle 20 stops moving, the elastic element 40 automatically rebounds, causing the baffle 20 to reset, thereby realizing the automatic control of the baffle 20.

[0098] In some embodiments, such as Figure 6 and Figure 7 As shown, the main body 50 of the equipment includes a switch, and an arc-extinguishing chamber is provided on the side of the switch facing the protective cover 10. The arc-extinguishing chamber is connected to the protective cavity 110.

[0099] Switches are mainly used to control the opening and closing of circuits. Under normal operation, the switch remains in the closed state, allowing current to pass through. When an overload or short circuit occurs, the switch will automatically trip and cut off the current.

[0100] For example, a switch includes contacts, which are typically made of a conductive material, and control the flow of current during operation by making or breaking contact.

[0101] When the switch disconnects the circuit, an electric arc will be formed between the contacts of the switch. The electric arc will cause high temperature and may damage the electrical equipment 1. An arc extinguishing chamber can be provided on the side of the switch facing the protective cover 10. The arc extinguishing chamber is connected to the protective cavity 110 through a mesh plate. The arc extinguishing chamber is mainly used to quickly extinguish the electric arc and reduce the safety risks such as fire or equipment damage caused by the electric arc.

[0102] For example, the arc-extinguishing chamber is usually made of materials with good thermal conductivity, high temperature resistance and corrosion resistance, such as copper, aluminum alloy, ceramics and glass fiber, to effectively absorb and dissipate the energy generated by the electric arc. The inner cavity of the arc-extinguishing chamber is connected to the protective cavity 110 and is isolated from the external environment.

[0103] Understandably, the arc-extinguishing chamber can effectively extinguish electric arcs. At the same time, through the connection between the arc-extinguishing chamber and the protective chamber 110, the gas or heat released by the arc-extinguishing chamber can be discharged in a timely manner, thereby reducing the risk of equipment damage, fire or explosion.

[0104] In some embodiments, such as Figure 3 As shown, the protective cover 10 includes a first side plate 131, a second side plate 132, and a third side plate 133 connected in sequence.

[0105] The first side plate 131 and the third side plate 133 are located on the side of the protective cover 10, and the second side plate 132 is located on the back of the protective cover 10. The first side plate 131 and the third side plate 133 are the same size and smaller than the second side plate 132. The side plate located on the front of the protective cover 10 is directly opposite the second side plate 132. Other components are provided on the front of the protective cover 10. The side plate located on the front of the protective cover 10 is a solid plate and does not have ventilation holes 120.

[0106] Vent 120 is provided on at least one of the first side plate 131, the second side plate 132, and the third side plate 133, and the vent 120 can be provided in various ways, including but not limited to:

[0107] Example 1: Any one of the first side plate 131, the second side plate 132 and the third side plate 133 is provided with a vent 120 and a corresponding baffle 20 is installed.

[0108] The second side plate 132 is connected to the first side plate 131 and the third side plate 133 respectively, and the first side plate 131 and the third side plate 133 are the same size and aligned along the length direction of the second side plate 132.

[0109] For example, the first side plate 131 is provided with a vent 120 and a corresponding baffle 20 is installed.

[0110] For example, the second side plate 132 is provided with a vent 120 and a corresponding baffle 20 is installed.

[0111] For example, the third side plate 133 is provided with a vent 120 and a corresponding baffle 20 is installed.

[0112] In actual operation, when the switch is switched from the on state to the off state, an electric arc will be formed between the disconnected contacts inside the switch. The electric arc will cause high temperature and may damage the electrical equipment 1. The high temperature electric arc will cause the air pressure inside the protective cavity 110 to rise, which is much greater than the external ambient air pressure. At this time, the air pressure drives the baffle 20 away from the side plate of the protective cover 10 with the vent hole 120. The vent hole 120 on the side plate of the protective cover 10 is connected to the outside, thereby relieving the pressure.

[0113] Example 2: Any two of the first side plate 131, the second side plate 132 and the third side plate 133 are provided with ventilation holes 120 and corresponding baffles 20 are installed.

[0114] The second side plate 132 is connected to the first side plate 131 and the third side plate 133 respectively, and the first side plate 131 and the third side plate 133 are the same size and aligned along the length direction of the second side plate 132.

[0115] For example, the first side plate 131 and the second side plate 132 are provided with ventilation holes 120 and corresponding baffles 20 are installed.

[0116] For example, the first side plate 131 and the third side plate 133 are provided with vent holes 120 and corresponding baffles 20 are installed.

[0117] For example, the second side plate 132 and the third side plate 133 are provided with ventilation holes 120 and corresponding baffles 20 are installed.

[0118] In actual operation, when the switch is switched from the on state to the off state, an electric arc will be formed between the disconnected contacts inside the switch. The electric arc will cause high temperature and may damage the electrical equipment 1. The high temperature electric arc will cause the air pressure inside the protective cavity 110 to rise, which is much greater than the external ambient air pressure. At this time, the air pressure drives the baffle 20 away from the side plate of the protective cover 10 with the vent hole 120. The vent hole 120 on the side plate of the protective cover 10 is connected to the outside, thereby relieving the pressure.

[0119] Example 3: The first side plate 131, the second side plate 132 and the third side plate 133 are all provided with ventilation holes 120 and corresponding baffles 20 are installed.

[0120] like Figure 3 As shown, the second side plate 132 is connected to the first side plate 131 and the third side plate 133 respectively, and the first side plate 131 and the third side plate 133 are the same size and aligned along the length direction of the second side plate 132.

[0121] In actual operation, when the switch is switched from the on state to the off state, an electric arc will be formed between the disconnected contacts inside the switch. The electric arc will cause high temperature and may damage the electrical equipment 1. The high temperature electric arc will cause the air pressure inside the protective cavity 110 to rise, which is much greater than the external ambient air pressure. At this time, the air pressure drives the baffle 20 away from the protective cover 10, and the vent 120 on the protective cover 10 is connected to the outside, thereby relieving the pressure.

[0122] In addition, the presence of the baffle 20 helps to reduce the entry of external dust, debris or moisture into the protective cover 10 through the vent 120, thereby protecting the internal equipment from contamination or damage.

[0123] It is understandable that by properly coordinating the vent 120 and the baffle 20, the temperature and pressure inside the electrical equipment 1 can be effectively controlled, reducing the risk of damage to the electrical equipment 1 due to overheating.

[0124] In some embodiments, such as Figure 3 As shown, at least one of the first side plate 131, the second side plate 132 and the third side plate 133 is provided with a plurality of vent holes 120, and the plurality of vent holes 120 are spaced apart along the length direction of the side plate to which they are located.

[0125] At least one of the first side plate 131, the second side plate 132 and the third side plate 133 is provided with a vent hole 120. The vent hole 120 can be a single hole or multiple holes. When the vent hole 120 is a single hole, the position of the vent hole 120 on the side plate is not limited. When the vent hole 120 is multiple holes, the multiple vent holes 120 are spaced apart along the length direction of the side plate.

[0126] The distributed vents 120 can increase the air circulation area, reduce the airflow blockage problem caused by too few vents 120, and help the air flow inside and outside the protective cover 10 to be smoother.

[0127] In addition, distributing the vents 120 along the length of the side panel can maintain a balanced ventilation effect across the entire side panel surface, while promoting more even heat dissipation and reducing the risk of localized overheating caused by heat accumulation.

[0128] In some embodiments, such as Figure 1 and Figure 3 As shown, the baffle 20 is provided with a through hole 210, and the projections of the through hole 210 and the vent hole 120 along the moving direction of the baffle 20 have no overlapping area.

[0129] The through holes 210 are spaced apart along the length of the baffle 20, and the vent holes 120 are spaced apart along the length of the side plate. That is, the corresponding vent holes 120 and through holes 210 are spaced apart along the same direction. At the same time, the through holes 210 and vent holes 120 are staggered along the arrangement direction. The projection of the vent hole 120 on the side plate of the protective cover 10 along the movement direction of the baffle 20 is located between adjacent through holes 210, and the projections of the through holes 210 and the vent holes 120 along the movement direction of the baffle 20 have no overlapping area.

[0130] It is understandable that when the baffle 20 is in contact with the protective cover 10, the through hole 210 and the vent 120 are not connected. The baffle 20 blocks the vent 120, and the protective cover 10 blocks the through hole 210, thereby improving the protective effect.

[0131] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0132] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0133] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0134] In the description of this application, "multiple" means two or more.

[0135] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0136] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0137] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0138] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical device, characterized by The electrical equipment is a circuit breaker, and the electrical equipment includes: Equipment body; A protective cover is installed on the main body of the equipment and forms a protective cavity with the main body of the equipment. The protective cover is provided with ventilation holes. A baffle, movably mounted on the protective cover, allows the vent to be selectively opened; An elastic element applies an elastic force between the baffle and the protective cover to keep the baffle in a position that normally blocks the vent.

2. The electrical equipment according to claim 1, characterized in that, When the main body of the device is not working and is normally powered on, the baffle blocks the vent. or, When the main body of the device is broken, the baffle opens the vent.

3. The electrical equipment according to claim 1, characterized in that, Also includes: A guide assembly is installed on the protective cover and the baffle to allow the protective cover and the baffle to move in cooperation.

4. The electrical equipment according to claim 3, characterized in that, The guiding assembly includes a guide shaft and a guide sleeve, wherein the guide shaft and the guide sleeve are respectively installed in one of the baffle and the protective cover, and the guide shaft slides axially within the guide sleeve.

5. The electrical equipment according to claim 4, characterized in that, One end of the guide shaft is fixedly installed on the baffle or the protective cover, and the other end is provided with a retaining ring so that the guide shaft is located inside the guide shaft sleeve.

6. The electrical equipment according to claim 1, characterized in that, The main body of the device includes a switch, and an arc-extinguishing chamber is provided on the side of the switch facing the protective cover. The arc-extinguishing chamber is connected to the protective cavity.

7. The electrical equipment according to any one of claims 1-6, characterized in that, The protective cover includes a first side plate, a second side plate, and a third side plate connected in sequence. At least one of the first side plate, the second side plate, and the third side plate is provided with the ventilation hole and is correspondingly equipped with the baffle.

8. The electrical equipment according to claim 7, characterized in that, At least one of the first side plate, the second side plate and the third side plate is provided with a plurality of ventilation holes, which are spaced apart along the length of the side plate.

9. The electrical equipment according to any one of claims 1-6, characterized in that, The baffle is provided with a through hole, and the projections of the through hole and the vent hole along the moving direction of the baffle do not overlap.

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