Box body and power electronic equipment

Abstract

The utility model discloses a box body and power electronic equipment, the box body comprises a box body, an anti-explosion valve and an induction assembly, at least two subareas are arranged in an accommodating space of the box body, and different subareas are used for accommodating different electronic devices respectively; the multiple anti-explosion valves and the multiple sensing assemblies are arranged on the box body, each anti-explosion valve is provided with a pressure relief opening used for communicating the containing space with the outside, and meanwhile one partition at least corresponds to one anti-explosion valve so that targeted pressure relief can be conducted through the different anti-explosion valves. The sensing assembly is used for detecting whether each partition meets the pressure relief requirement or not, and when the sensing assembly detects that a certain partition meets the pressure relief requirement, only the anti-explosion valve corresponding to the partition is opened, and targeted pressure relief is conducted through the pressure relief opening. The explosion-proof valves are adopted to perform independent pressure relief of different subareas of the box body accommodating space, so that the influence of pressure and temperature out-of-control diffusion of a single subarea on the service life of devices in other subareas can be reduced, and the loss caused by chain reaction of the devices can be further reduced.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more specifically, to a housing and power electronic equipment. Background Technology

[0002] Existing inverters and other power electronic devices that require sealed environments may contain internal components such as capacitors, switches, relays, and modules that pose an explosion risk in the event of an electrical fault. In some cases, an explosion triggered by the failure of a single component can generate thermal effects and pressure waves that spread throughout the entire device, causing subsequent failures of other components and resulting in significant economic losses.

[0003] Therefore, how to effectively reduce the losses caused by the chain reaction of equipment components has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a housing to effectively reduce the losses caused by the chain reaction of equipment components.

[0005] Another object of this application is to provide a power electronic device including the aforementioned enclosure.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A housing, comprising:

[0008] The box body has a receiving space, and the receiving space is provided with at least two partitions;

[0009] Multiple explosion-proof valves are provided on the enclosure body and have pressure relief ports that connect the containment space to the outside. Each partition corresponds to at least one explosion-proof valve.

[0010] Multiple sensing components are installed on the main body of the enclosure and detect whether each of the partitions meets the pressure relief requirements.

[0011] When the sensing component detects that the partition meets the pressure relief requirement, the explosion-proof valve corresponding to the partition opens and releases pressure through the pressure relief port.

[0012] Optionally, in the aforementioned housing, the sensing component includes a plurality of detectors, with each partition corresponding to at least one detector, and the detector having a trigger threshold;

[0013] When the detection device detects that the pressure relief parameter of the partition reaches the trigger threshold, the partition meets the pressure relief requirement, and the explosion-proof valve corresponding to the partition opens and releases pressure through the pressure relief port.

[0014] Optionally, in the aforementioned enclosure, the types of detection devices corresponding to each partition are the same, and the trigger thresholds of each detection device are the same or different.

[0015] Alternatively, different partitions may correspond to different types of detection devices.

[0016] Optionally, in the aforementioned housing, the gas within the containment space is stratified along the vertical direction, and at least two partitions are provided within the containment space along the vertical direction, the partitions corresponding to different layers of gas within the containment space;

[0017] Each of the aforementioned zones has a corresponding detection device that detects the gas in that zone, and each of the aforementioned zones has a corresponding explosion-proof valve that releases the gas in that zone when the pressure is released.

[0018] Optionally, in the aforementioned housing, along the vertical direction, the upper partition of the two partitions is the first partition, the lower partition is the second partition, the detection element corresponding to the first partition is the first detection element, and the detection element corresponding to the second partition is the second detection element;

[0019] The first detection device detects the concentration of the first gas, and the second detection device detects the concentration of the second gas, wherein the density of the first gas is less than the density of the second gas.

[0020] Optionally, in the above-mentioned housing, along the vertical direction, the upper partition of the two partitions is the third partition, the lower partition is the fourth partition, the detection element corresponding to the third partition is the third detection element, and the detection element corresponding to the fourth partition is the fourth detection element;

[0021] Both the third and fourth detectors detect the concentration of the third gas, and the trigger threshold of the third detector is greater than the trigger threshold of the fourth detector; and / or, both the third and fourth detectors detect the concentration of the fourth gas, and the trigger threshold of the third detector is less than the trigger threshold of the fourth detector, wherein the density of the third gas is less than that of air, and the density of the fourth gas is greater than that of air.

[0022] Optionally, in the aforementioned housing, the sensing component includes multiple temperature sensors, and each partition corresponds to at least one of the temperature sensors;

[0023] When the temperature detection device detects that the temperature of the partition is greater than or equal to the preset temperature, the explosion-proof valve corresponding to the partition opens and releases pressure through the pressure relief port.

[0024] Optionally, in the aforementioned housing, the sensing component includes a plurality of pressure sensors, and each partition corresponds to at least one of the pressure sensors;

[0025] When the pressure detection device detects that the pressure in the partition is greater than or equal to the preset pressure, the explosion-proof valve corresponding to the partition opens and releases pressure through the pressure relief port.

[0026] Optionally, in the aforementioned housing, the sensing component includes multiple gas concentration detectors, and each partition corresponds to at least one of the gas concentration detectors;

[0027] When the gas concentration detector detects that the concentration of the target gas in the zone is greater than or equal to the preset concentration, the explosion-proof valve corresponding to the zone opens and releases pressure through the pressure relief port.

[0028] Optionally, in the aforementioned housing, the maximum inscribed circle diameter of the pressure relief port is less than or equal to 50 mm;

[0029] And / or, the maximum opening width of the pressure relief port is less than or equal to 12 mm.

[0030] Optionally, the aforementioned housing may also include a protective component for shielding the pressure relief port.

[0031] Optionally, in the aforementioned enclosure, the protective component includes an elastic element and a protective cover, the protective cover sealing the pressure relief port of the explosion-proof valve, and the elastic element connecting the protective cover and the explosion-proof valve;

[0032] When the sensing component detects that the partition meets the pressure relief requirement, the explosion-proof valve corresponding to the partition opens and releases pressure through the pressure relief port. The protective cover is pushed by the air pressure to move and deform the elastic element until a pressure relief gap is formed between the protective cover and the explosion-proof valve. The pressure relief gap connects the pressure relief port to the outside.

[0033] Optionally, in the aforementioned enclosure, the protective component includes a protective mesh that covers the pressure relief port, and the cross-sectional area of ​​each mesh opening on the protective mesh is smaller than the cross-sectional area of ​​the pressure relief port.

[0034] Optionally, in the aforementioned enclosure, the protective component includes an expansion container filled with an expansion material;

[0035] When the explosion-proof valve opens and releases pressure through the pressure relief port, until the sensing component detects that the partition does not meet the pressure relief requirements, the expansion container opens and sprays the expansion material out of the pressure relief port. The expansion material blocks the pressure relief port and can be blown open when the pressure relief port is released.

[0036] A power electronic device includes electronic components and the aforementioned housing, wherein the electronic components are disposed within the housing space.

[0037] The enclosure provided in this application includes an enclosure body, explosion-proof valves, and sensing components. The enclosure body has a receiving space with at least two partitions, each used to house different electronic devices. Multiple explosion-proof valves and sensing components are mounted on the enclosure body. Each explosion-proof valve has a pressure relief port for connecting the receiving space to the outside environment for pressure relief. Each partition corresponds to at least one explosion-proof valve, allowing for targeted pressure relief through different valves. The sensing components detect whether each partition meets the pressure relief requirements. When a sensing component detects that a partition meets the pressure relief requirements, only the explosion-proof valve corresponding to that partition opens, providing targeted pressure relief through the pressure relief port.

[0038] Compared to existing technologies, the enclosure provided in this application employs multiple explosion-proof valves to independently relieve pressure in different zones of the enclosure's containment space. This reduces the impact of uncontrolled pressure and temperature runaway in a single zone on the lifespan of components in other zones, thereby reducing losses caused by chain reactions. The redundant design of multiple explosion-proof valves ensures that the entire enclosure can still relieve pressure normally even if a single explosion-proof valve fails, improving safety. By adding sensing components to monitor the enclosure's status in real time and precisely control the opening of each explosion-proof valve, the safety hazards caused by explosions of power electronic equipment can be reduced. At the same time, the area of ​​the pressure relief port of the explosion-proof valve is controllable after opening, which can effectively reduce the risk of internal components being touched. In addition, the enclosure disclosed in this application also has the advantages of simple structure and ease of production and assembly.

[0039] The power electronic equipment disclosed in this application includes the aforementioned enclosure and electronic components. The electronic components are housed within the enclosure. Since it includes the aforementioned enclosure, it also possesses the aforementioned beneficial effects. Other structures refer to the prior art and will not be described in detail here. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings, when the same component is included with two reference numerals inside and outside parentheses, it indicates that the component can be referred to by the two reference numerals respectively.

[0041] Figure 1 This is a schematic diagram of the structure of the box disclosed in the embodiments of this application. Figure 1 ;

[0042] Figure 2 This is a schematic diagram of the structure of the box disclosed in the embodiments of this application. Figure 2 ;

[0043] Figure 3 This is a schematic diagram of the cooperation structure between the explosion-proof valve and the first type of protective component disclosed in the embodiments of this application. Figure 1 ;

[0044] Figure 4 This is a schematic diagram of the cooperation structure between the explosion-proof valve and the first type of protective component disclosed in the embodiments of this application. Figure 2 ;

[0045] Figure 5 This is a schematic diagram of the cooperation structure between the explosion-proof valve and the second type of protective component disclosed in the embodiments of this application;

[0046] Figure 6 This is a schematic diagram of the cooperation structure between the explosion-proof valve and the third type of protective component disclosed in the embodiments of this application;

[0047] Figure 7 This is a schematic diagram of the structure of the power electronic device disclosed in the embodiments of this application. Figure 1 ;

[0048] Figure 8 This is a schematic diagram of the structure of the power electronic device disclosed in the embodiments of this application. Figure 2 ;

[0049] Figure 9 This is a schematic diagram of the structure of the power electronic device disclosed in the embodiments of this application. Figure 3 .

[0050] Among them, 100 is the main body of the enclosure, 101 is the partition, 101a is the first partition, 101b is the second partition, 101c is the third partition, 101d is the fourth partition, 200 is the explosion-proof valve, 201 is the pressure relief port, 202 is the pressure relief gap, 300 is the sensing component, 301 is the gas concentration detection element, 302 is the temperature detection element, 303 is the pressure detection element, 310 is the first detection element, 311 is the second detection element, 312 is the third detection element, 313 is the fourth detection element, 400 is the protective cover, 410 is the elastic element, 420 is the protective net, 430 is the expansion container, 431 is the expansion material, and 500 is the electronic device. Detailed Implementation

[0051] The core of this application is to disclose a housing that can effectively reduce the losses caused by the chain reaction of equipment components.

[0052] Another key aspect of this application is the disclosure of a power electronic device that includes the aforementioned enclosure.

[0053] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0054] Combination Figure 1 and Figure 2 The enclosure disclosed in this application includes an enclosure body 100, an explosion-proof valve 200, and a sensing component 300. The enclosure body 100 has a receiving space, within which at least two partitions 101 are provided. Different partitions 101 are used to accommodate different electronic devices 500. Multiple explosion-proof valves 200 and sensing components 300 are provided, all mounted on the enclosure body 100. Each explosion-proof valve 200 has a pressure relief port 201 for connecting the receiving space to the outside environment for pressure relief. Each partition 101 corresponds to at least one explosion-proof valve 200, allowing for targeted pressure relief through different valves. The sensing component 300 detects whether each partition 101 meets the pressure relief requirements. When the sensing component 300 detects that a partition 101 meets the pressure relief requirements, only the explosion-proof valve 200 corresponding to that partition 101 opens and provides targeted pressure relief through the pressure relief port 201. Specifically, the pressure relief requirement can be that the temperature of partition 101 reaches a preset temperature and / or the pressure rises to a preset pressure. Accordingly, the sensing component 300 is used to detect the pressure relief parameters such as temperature and pressure of each partition 101. In this application, the pressure relief parameters refer to the relevant parameters that the sensing component 300 can use to detect whether a certain partition 101 meets the pressure relief requirements.

[0055] When a fault in an electronic component 500 within a certain partition 101 causes the temperature or pressure of that partition 101 to rise to a preset value or other abnormalities to occur, only the explosion-proof valve 200 corresponding to that partition 101 will open to release pressure. This can mitigate and isolate the accident caused by the fault in that partition 101 to a certain extent, prevent the accident from escalating, and reduce the impact on the entire enclosure and other electronic components 500 within partitions 101. If the abnormal temperature or pressure of that partition 101 spreads to multiple partitions 101, multiple sets of explosion-proof valves 200 can be triggered simultaneously to release pressure, thereby reducing the pressure in the containment space to a safe range and minimizing losses.

[0056] Compared to existing technologies, the enclosure disclosed in this application employs multiple explosion-proof valves 200 to independently depressurize different zones 101 within the enclosure's containment space. This reduces the impact of pressure and temperature runaway from a single zone 101 on the lifespan of components in other zones 101, thereby reducing losses caused by cascading reactions. The redundant design of multiple explosion-proof valves 200 ensures that the entire enclosure can still depressurize normally even if a single explosion-proof valve 200 fails, improving safety. By adding a sensing component 300 to monitor the enclosure's status in real time and precisely control the opening of each explosion-proof valve 200, safety hazards caused by explosions of power electronic equipment can be reduced. Simultaneously, the area of ​​the pressure relief port 201 of the explosion-proof valve 200 is controllable after opening, effectively reducing the risk of internal components being touched. Furthermore, the enclosure disclosed in this application also has the advantages of simple structure and ease of production and assembly.

[0057] Specifically, the sensing component 300 may include multiple detection elements, with at least one detection element corresponding to each partition 101. The detection element has a trigger threshold, which can be set according to actual conditions. When the detection element detects that the pressure relief parameter of the corresponding partition 101 reaches the trigger threshold, it indicates that the partition 101 meets the pressure relief requirements. The explosion-proof valve 200 corresponding to the partition 101 opens and releases pressure through the pressure relief port 201. For example, the detection element may be a temperature sensor, a thermometer, a pressure sensor, a pressure gauge, a gas concentration sensor, or a variety of other devices.

[0058] The number and type of detection components can be selected according to the actual situation. When the types of detection components corresponding to each partition 101 are the same, the trigger thresholds of each detection component can be the same or different; or, the types of detection components corresponding to different partitions 101 can be different, and this application embodiment does not limit this. For example, if some partitions 101 have a large space, the number of detection components can be increased accordingly; in addition, multiple or more detection components can be arranged in the partitions 101 where electronic devices 500 such as capacitors that are prone to explosion are located for targeted detection; when electronic devices 500 in some partitions 101 malfunction, the temperature rises significantly, and temperature detection components 302, etc., can be arranged near the electronic device 500.

[0059] This application does not limit the type of explosion-proof valve 200, nor does it limit the specific division method of each partition 101. Different explosion-proof valves 200 can be installed on different walls of the enclosure body 100. When the pressure in a certain partition 101 reaches the trigger threshold, the explosion-proof valve 200 on that side can be triggered to release the pressure, thereby avoiding affecting the electronic devices 500 in other partitions 101 and reducing the loss of an explosion from the source.

[0060] It should be noted that under natural conditions, gases with higher density tend to sink, while gases with lower density tend to rise. Therefore, under normal operating conditions, the gas within the containment space exhibits stratification along the vertical direction. When a device within the containment space malfunctions and releases gas, the newly generated gas will also rise or sink within the containment space according to its own state. Therefore, combined with... Figure 7 and Figure 8 To ensure the timeliness and sensitivity of the sensing component 300 in monitoring the state of the enclosure, at least two partitions 101 are provided vertically within the containment space. Each partition 101 corresponds to a different layer of gas within the containment space, and the corresponding detection element for each partition 101 is used to perform targeted detection of the gas within that partition 101, thereby ensuring the sensitivity and reliability of the detection. Specifically, in some embodiments, combined with Figure 9 In a vertical direction, the upper partition 101 is defined as the first partition 101a, and the lower partition 101 is defined as the second partition 101b. The detection element corresponding to the first partition 101a is designated as the first detection element 310, and the detection element corresponding to the second partition 101b is designated as the second detection element 311. The first detection element 310 is used to detect the concentration of a first gas, and the second detection element 311 is used to detect the concentration of a second gas, wherein the density of the first gas is less than the density of the second gas. The first gas is the gas that automatically rises to the first partition 101a after the explosion, and the second gas is the gas that automatically sinks to the second partition 101b after the explosion. This allows the detection elements corresponding to each partition 101 to perform targeted detection of the gas in each partition 101, ensuring timely pressure relief.

[0061] For example, when certain electronic devices 500 malfunction, they release hydrogen gas. The first gas includes hydrogen gas. Since hydrogen gas has a low density, it will actively rise. Therefore, a more sensitive detector for changes in hydrogen gas concentration can be arranged in the upper vertical section 101 to promptly control the explosion-proof valve 200 to open and release pressure through the pressure relief port 201. In addition, since the temperature and pressure of the gas released when some electronic devices 500 malfunction are relatively high, this will also cause the gas to actively rise. Therefore, a more sensitive detector for changes in temperature or pressure can be arranged in the upper vertical section 101 for detection.

[0062] In other embodiments, combined with Figure 9Let the vertical direction be defined as follows: the upper partition 101 of any two partitions 101 is designated as the third partition 101c, and the lower partition 101 is designated as the fourth partition 101d. The detector corresponding to the third partition 101c is designated as the third detector 312, and the detector corresponding to the fourth partition 101d is designated as the fourth detector 313. When both the third detector 312 and the fourth detector 313 are used to detect the concentration of the third gas, the trigger threshold of the third detector 312 is greater than the trigger threshold of the fourth detector 313. Alternatively, when both the third detector 312 and the fourth detector 313 are used to detect the concentration of the fourth gas, the trigger threshold of the third detector 312 is less than the trigger threshold of the fourth detector 313. The density of the third gas is less than that of air, and the density of the fourth gas is greater than that of air. That is, before and after the explosion, the third gas will rise and the fourth gas will sink, resulting in gas stratification. This causes the content of different gases in the third zone 101c and the fourth zone 101d to be different. Accordingly, the third and fourth detection devices can be set with different trigger thresholds to detect whether an explosion has occurred.

[0063] For example, if a certain electronic device 500 malfunctions and causes an explosion, releasing hydrogen gas, and the third gas may include hydrogen, then both the third detection element 312 and the fourth detection element 313 are used to detect the concentration of hydrogen gas. Since hydrogen gas has a low density and will actively rise, the hydrogen gas trigger threshold of the third detection element 312 is set to be higher than that of the fourth detection element 313 to avoid false alarms. At the same time, the setting of the fourth detection element 313 can ensure that an alarm is issued in time when there is an explosion risk in the enclosure, ensuring safe depressurization.

[0064] In addition, the explosion-proof valves 200 corresponding to each partition 101 release the gas in each partition 101 during pressure relief. For example, when the explosion-proof valves 200 corresponding to two vertically arranged partitions 101 open and release pressure through the pressure relief port 201 at the same time, it is defined that the pressure relief port 201 of the explosion-proof valve 200 located above releases the first gas, and the pressure relief port 201 of the explosion-proof valve 200 located below releases the second gas. The density of the first gas is usually lower than that of the second gas. Based on the types of gases that are likely to be generated when the actual electronic device 500 explodes, the actual composition of the first and second gases can be controlled, which facilitates subsequent targeted gas emission treatment.

[0065] For example, with Figure 1 and Figure 2The orientation of the enclosure shown is the actual arrangement direction of the enclosure during use. Explosion-proof valves 200 are installed at the top, middle and bottom of the enclosure body 100. Correspondingly, three partitions 101, upper, middle and lower, are arranged in the internal accommodating space of the enclosure body 100. The explosion-proof valve 200 installed at the top of the enclosure body 100 corresponds to the partition 101 at the top, the explosion-proof valve 200 installed in the middle of the enclosure body 100 corresponds to the partition 101 in the middle, and the explosion-proof valve 200 installed at the bottom of the enclosure body 100 corresponds to the partition 101 at the bottom. The explosion-proof valve 200 at the top is used to release high-temperature light gas, the explosion-proof valve 200 in the middle is used to release equalizing and medium-temperature gas, and the explosion-proof valve 200 at the bottom is used to release high-density gas.

[0066] In a specific embodiment disclosed in this application, combined with Figure 8 The sensing component 300 includes multiple temperature sensors 302, with at least one temperature sensor 302 corresponding to each zone 101. When a temperature sensor 302 detects that the temperature of a certain zone 101 is greater than or equal to a preset temperature, the opening requirement of the explosion-proof valve 200 is met. The explosion-proof valve 200 corresponding to that zone 101 then opens and releases pressure through the pressure relief port 201. The temperature sensors 302 can monitor the temperature changes of each zone 101 in real time. Once the temperature exceeds the preset threshold, the explosion-proof valve 200 is immediately activated to release pressure, ensuring timely pressure relief. Temperature detection through the temperature sensors 302 provides accurate data support for explosion-proof pressure relief, making the pressure relief operation more precise and avoiding unnecessary pressure relief or dangers caused by insufficient pressure relief. This achieves efficient, timely, and accurate safety protection for the electronic components 500 inside the enclosure.

[0067] In another specific embodiment disclosed in this application, combined with Figure 8 The sensing component 300 includes multiple pressure detection elements 303, with at least one pressure detection element 303 corresponding to each partition 101. When a pressure detection element 303 detects that the pressure in a certain partition 101 is greater than or equal to a preset pressure, the opening requirement of the explosion-proof valve 200 is met. The explosion-proof valve 200 corresponding to that partition 101 opens and releases pressure through the pressure relief port 201. The pressure detection element 303 can directly monitor the pressure changes in each partition 101 within the enclosure, reflecting potential explosion risks more directly than temperature monitoring. By monitoring pressure, it can effectively prevent the internal pressure of the enclosure from accumulating to a level that could lead to an explosion, thereby reducing the occurrence of accidents and achieving efficient, timely, and accurate safety protection for the electronic components 500 inside the enclosure. In addition, the pressure detection element 303 has a relatively simple structure, making maintenance and replacement easier and reducing the operating cost of the equipment.

[0068] In yet another specific embodiment disclosed in this application, combined with Figure 8The sensing component 300 includes multiple gas concentration detectors 301, which can detect the concentration of a target gas in a specific zone 101 in real time. Each zone 101 corresponds to at least one gas concentration detector 301. When a gas concentration detector 301 detects that the concentration of the target gas in a specific zone 101 is greater than or equal to a preset concentration, the opening requirement of the explosion-proof valve 200 is met. The explosion-proof valve 200 corresponding to that zone 101 opens and releases pressure through the pressure relief port 201. Specifically, the gas concentration detector 301 can be used to detect the concentration of at least one flammable and explosive gas, such as hydrogen, carbon monoxide, hydrogen sulfide, and hydrogen fluoride, to provide early warning and release before the concentration reaches a dangerous level. By monitoring and controlling the concentration of flammable and explosive gases, the safety performance of the equipment is significantly improved, protecting the safety of personnel and equipment. The preset temperature, preset pressure, and preset concentration can all be adjusted according to actual conditions. The sensing component 300 can simultaneously include multiple detectors to comprehensively evaluate the pressure relief situation, thereby achieving precise control of the pressure relief and explosion relief process.

[0069] To meet the requirements for finger-touch protection and 50mm diameter probe testing after explosion venting, the maximum inscribed circle diameter of the pressure relief port 201 is less than or equal to 50mm; furthermore, the maximum opening width of the pressure relief port 201 is less than or equal to 12mm, in order to reduce the risk of contact with electronic components 500 within the containment space and minimize personnel injury while releasing pressure. It should be noted that the total area of ​​the pressure relief ports 201 of all explosion-proof valves 200 should be less than the minimum explosion venting area required by the equipment.

[0070] To further optimize the design, the enclosure disclosed in this application also includes a protective component for shielding the pressure relief port 201, which enhances the anti-probing effect of the pressure relief port 201.

[0071] In some embodiments, combined with Figure 3 and Figure 4The protective component includes an elastic element 410 and a protective cover 400. The protective cover 400 is sealed at the pressure relief port 201 of the explosion-proof valve 200, and the elastic element 410 is connected between the protective cover 400 and the explosion-proof valve 200. When the sensing component 300 detects that a certain zone 101 meets the pressure relief requirement, the explosion-proof valve 200 corresponding to the zone 101 opens and releases pressure through the pressure relief port 201. At the same time, the protective cover 400 is pushed by air pressure to move and deform the elastic element 410 until a pressure relief gap 202 is formed between the protective cover 400 and the explosion-proof valve 200. The pressure relief gap 202 can connect the pressure relief port 201 to the outside. Specifically, during normal use, the elastic element 410 is in its initial state, and the protective cover 400 is sealed at the pressure relief port 201. When the internal pressure of the partition 101 corresponding to the explosion-proof valve 200 is greater than or equal to the preset pressure, the pressure relief port 201 opens to release the pressure. Under the action of pressure, the protective cover 400 is pushed to move away from the pressure relief port 201, causing the elastic element 410 to deform and forming a pressure relief gap 202 to release pressure to the outside. After the pressure is released, the elastic element 410 can drive the protective cover 400 to reset under its own elastic force, and reduce the pressure relief gap 202 until the protective cover 400 re-closes the pressure relief port 201, thereby greatly reducing the risk of electronic devices 500 being touched in the containment space and improving the safety performance of the equipment. A further optimized solution is to set a sealing gasket between the explosion-proof valve 200 and the protective cover 400. The elastic force of the elastic element 410 can compress the sealing gasket to enhance the sealing performance of the containment space at the pressure relief port 201.

[0072] In other embodiments, combined with Figure 5 The protective component includes a protective net 420, which covers the pressure relief port 201. The cross-sectional area of ​​each mesh opening on the protective net 420 is smaller than the cross-sectional area of ​​the pressure relief port 201. High-pressure gas inside the containment space can be quickly released through the mesh openings of the protective net 420 without significantly affecting the pressure relief effect. Simultaneously, the protective net 420 can prevent external debris, small animals, etc., from entering the pressure relief port 201, protecting internal components from external influences. Furthermore, the protective net 420 is easy to inspect and maintain; if damaged or blocked, it can be quickly replaced or cleaned.

[0073] In yet other embodiments, combined with Figure 6The protective component includes an expansion container 430 filled with an expansion material 431. When the explosion-proof valve 200 opens and releases pressure through the pressure relief port 201 until the sensing component 300 detects that the partition 101 does not meet the pressure relief requirements, it indicates that the pressure in the containment space has returned to the normal range through the pressure relief of the explosion-proof valve 200. At this time, the expansion container 430 opens and sprays the expansion material 431 into the pressure relief port 201. The expansion material 431 can seal the pressure relief port 201 to prevent external foreign objects from touching it. At the same time, the expansion material 431 sealed in the pressure relief port 201 can be easily blown open when the pressure relief port 201 is depressurized again, without affecting the subsequent pressure relief function of the explosion-proof valve 200. It is convenient to use and has a low cost.

[0074] Specifically, the explosion-proof valve 200 is controlled by a control module, which can be installed on the housing body 100. The sensing component 300 and the aforementioned expansion container 430 can both be electrically connected to the control module and controlled by it. The expansion material 431 can be made of foam, compressed sponge, or other materials, possessing the property of expanding outwards without external pressure. The expansion material 431 can at least partially cover the pressure relief port 201, thus simultaneously isolating the pressure relief port 201 from the outside environment and releasing pressure.

[0075] In some embodiments, the enclosure body 100 includes a cover and a main body, which are connected to form the aforementioned accommodating space; the explosion-proof valve 200 and the sensing component 300 are disposed on the cover and / or the main body. Under normal use, the cover and the main body are sealed together by a sealing strip or other structure to form a closed accommodating space. When the electronic device 500 in the accommodating space experiences an impact or explosion due to a malfunction or other factors, causing a certain partition 101 in the accommodating space to meet the pressure relief conditions, the corresponding explosion-proof valve 200 opens to actively relieve pressure.

[0076] A further optimized design incorporates a flange on at least one of the main body and the cover. This flange conceals the seam between the main body and the cover, preventing the seam from being exposed. Additionally, the flange enhances the structural strength of the main body and the cover, reducing deformation. The flange and the main body or cover can be an integral or separate structure. When it is a separate structure, the connection method includes, but is not limited to, screw connection, plug-in connection, and snap-fit ​​connection.

[0077] Combination Figure 7 and Figure 8 The power electronic device disclosed in this application includes an electronic device 500 and the aforementioned housing. The electronic device 500 is disposed within the housing space. Since it includes the aforementioned housing, it also has the aforementioned beneficial effects. Other structures refer to the prior art and will not be described in detail here.

[0078] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment unless explicitly excluded by another embodiment. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A box, characterized in that, include: The box body (100) has a receiving space, and the receiving space is provided with at least two partitions (101). Multiple explosion-proof valves (200) are provided on the housing body (100) and have a pressure relief port (201) connecting the containment space to the outside. Each partition (101) corresponds to at least one explosion-proof valve (200). Multiple sensing components (300) are disposed on the housing body (100) and detect whether each of the partitions (101) meets the pressure relief requirements; When the sensing component (300) detects that the partition (101) meets the pressure relief requirement, the explosion-proof valve (200) corresponding to the partition (101) is opened and pressure is released through the pressure relief port (201).

2. The housing as described in claim 1, characterized in that, The sensing component (300) includes a plurality of detectors, and one partition (101) corresponds to at least one detector, the detector having a trigger threshold; When the detection device detects that the pressure relief parameter of the partition (101) reaches the trigger threshold, the partition (101) meets the pressure relief requirement, and the explosion-proof valve (200) corresponding to the partition (101) is opened and pressure is relieved through the pressure relief port (201).

3. The housing as described in claim 2, characterized in that, The types of detection devices corresponding to each of the partitions (101) are all the same, and the trigger thresholds of each of the detection devices are the same or different; Alternatively, different partitions (101) may correspond to different types of detection elements.

4. The housing as described in claim 2, characterized in that, Along the vertical direction, the gas in the containment space is layered, and at least two partitions (101) are provided in the containment space along the vertical direction, the partitions (101) corresponding to different layers of gas in the containment space; The detection device corresponding to each partition (101) detects the gas in each partition (101), and the explosion-proof valve (200) corresponding to each partition (101) releases the gas in each partition (101) when depressurization.

5. The housing as described in claim 4, characterized in that, In the vertical direction, the upper partition (101) of the two partitions (101) is the first partition (101a), and the lower partition (101) is the second partition (101b). The detection element corresponding to the first partition (101a) is the first detection element (310), and the detection element corresponding to the second partition (101b) is the second detection element (311). The first detection element (310) detects the concentration of the first gas, and the second detection element (311) detects the concentration of the second gas, wherein the density of the first gas is less than the density of the second gas.

6. The housing as described in claim 4, characterized in that, In the vertical direction, the upper partition (101) of the two partitions (101) is the third partition (101c), and the lower partition (101) is the fourth partition (101d). The detection element corresponding to the third partition (101c) is the third detection element (312), and the detection element corresponding to the fourth partition (101d) is the fourth detection element (313). Both the third detector (312) and the fourth detector (313) detect the concentration of the third gas, and the trigger threshold of the third detector (312) is greater than the trigger threshold of the fourth detector (313); and / or, both the third detector (312) and the fourth detector (313) detect the concentration of the fourth gas, and the trigger threshold of the third detector (312) is less than the trigger threshold of the fourth detector (313), wherein the density of the third gas is less than that of air, and the density of the fourth gas is greater than that of air.

7. The housing as described in claim 1, characterized in that, The sensing component (300) includes a plurality of temperature sensors (302), and one partition (101) corresponds to at least one of the temperature sensors (302); When the temperature detection element (302) detects that the temperature of the partition (101) is greater than or equal to the preset temperature, the explosion-proof valve (200) corresponding to the partition (101) opens and releases pressure through the pressure relief port (201).

8. The housing as described in claim 1, characterized in that, The sensing component (300) includes a plurality of pressure sensors (303), and one partition (101) corresponds to at least one of the pressure sensors (303); When the pressure detection element (303) detects that the pressure in the partition (101) is greater than or equal to the preset pressure, the explosion-proof valve (200) corresponding to the partition (101) opens and releases pressure through the pressure relief port (201).

9. The housing as described in claim 1, characterized in that, The sensing component (300) includes a plurality of gas concentration detectors (301), and each partition (101) corresponds to at least one of the gas concentration detectors (301); When the gas concentration detector (301) detects that the concentration of the target gas in the partition (101) is greater than or equal to the preset concentration, the explosion-proof valve (200) corresponding to the partition (101) opens and releases pressure through the pressure relief port (201).

10. The housing as described in any one of claims 1-9, characterized in that, The maximum inscribed circle diameter of the pressure relief port (201) is less than or equal to 50 mm; And / or, the maximum opening width of the pressure relief port (201) is less than or equal to 12 mm.

11. The housing as described in any one of claims 1-9, characterized in that, It also includes a protective component for shielding the pressure relief port (201).

12. The housing as described in claim 11, characterized in that, The protective assembly includes an elastic element (410) and a protective cover (400), the protective cover (400) sealing the pressure relief port (201) of the explosion-proof valve (200), and the elastic element (410) connecting the protective cover (400) and the explosion-proof valve (200); When the sensing component (300) detects that the partition (101) meets the pressure relief requirement, the explosion-proof valve (200) corresponding to the partition (101) opens and releases pressure through the pressure relief port (201). The protective cover (400) is pushed and moved by the air pressure, causing the elastic element (410) to deform until a pressure relief gap (202) is formed between the protective cover (400) and the explosion-proof valve (200). The pressure relief gap (202) connects the pressure relief port (201) to the outside.

13. The housing as described in claim 11, characterized in that, The protective component includes a protective net (420) that covers the pressure relief port (201), and the cross-sectional area of ​​each mesh hole on the protective net (420) is smaller than the cross-sectional area of ​​the pressure relief port (201).

14. The housing as described in claim 11, characterized in that, The protective assembly includes an expansion container (430) filled with an expansion material (431). When the explosion-proof valve (200) is opened and pressure is released through the pressure relief port (201), until the sensing component (300) detects that the partition (101) does not meet the pressure relief requirements, the expansion container (430) is opened and the expansion material (431) is sprayed out to the pressure relief port (201). The expansion material (431) blocks the pressure relief port (201) and can be blown open when the pressure relief port (201) is depressurized.

15. A power electronic device, characterized in that, It includes electronic components and a housing as described in any one of claims 1-14, wherein the electronic components are disposed within the receiving space.

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