Container components and photovoltaic equipment

Abstract

This application provides a housing assembly and a photovoltaic device. The housing assembly includes a housing and a pressure relief assembly disposed within the housing. The pressure relief assembly includes: a fixed frame with a pressure relief port; a pressure relief plate covering the pressure relief port, the pressure relief plate having a first side and a second side spaced apart; a mounting fastener fixedly connected to the fixed frame and to the first side; and a pressure relief fastener fixedly connected to the fixed frame and abutting against the second side. When the internal pressure of the housing increases, the second side gradually detaches at least partially from the pressure relief fastener, and the pressure relief plate deforms to create a ventilated gap between the pressure relief plate and the pressure relief port. When the internal pressure of the housing increases, the second side can gradually detach at least partially from the pressure relief fastener and the fixed frame, while the pressure relief plate bends and deforms, creating a ventilated gap between the pressure relief plate and the pressure relief port, rapidly releasing internal pressure and achieving rapid pressure relief to prevent explosion.

Description

Technical Field

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

[0002] During the operation of sealed electronic components or electrical equipment (such as photovoltaic inverters, energy storage devices, and battery systems), internal faults may pose an explosion risk. For example, when a component is damaged due to a fault, high temperatures are generated inside the equipment, triggering a chain reaction of physicochemical reactions. When the gas concentration reaches the explosion threshold and encounters an ignition source, or when the gas pressure reaches a certain high-pressure threshold, a deflagration or explosion may occur. Because the equipment is sealed, the high pressure generated at the moment of explosion cannot be released in time, which can cause the equipment casing to be destroyed and blown away, resulting in an explosion and posing a safety hazard. Utility Model Content

[0003] In view of the above, it is necessary to provide a housing component and photovoltaic equipment to solve the above-mentioned defects.

[0004] The first aspect of this application provides a housing assembly, including a housing and a pressure relief assembly disposed on the housing. The pressure relief assembly includes: a fixing frame connected to the housing, the fixing frame having a pressure relief port communicating with the interior of the housing; a pressure relief plate covering the pressure relief port, the pressure relief plate having a first side and a second side spaced apart; a mounting fastener fixedly connected to the fixing frame and fixedly connected to the first side; and a pressure relief fastener fixedly connected to the fixing frame and abutting against the second side. When the internal pressure of the housing increases, at least part of the second side gradually detaches from the pressure relief fastener, and the pressure relief plate deforms to form a breathable gap between the pressure relief plate and the pressure relief port.

[0005] In some embodiments, a first bend is provided on the first side, and the first bend is embedded in the fixed frame; a mounting fastener is fixedly connected to the first bend; when the internal pressure of the box increases, the pressure relief plate can deform at the first bend.

[0006] In some embodiments, the mounting fastener is a first screw, the first bent portion has a through hole, and the fixing frame has a first fixing hole; the first screw passes through the first fixing hole and the through hole, and is fixedly connected to the first bent portion and the fixing frame.

[0007] In some embodiments, a first countersunk groove is provided on the outer side of the fixing frame, and the head of the first screw is received in the first countersunk groove.

[0008] In some embodiments, a second bend is provided on the second side, and the second bend is embedded in the fixing frame; the pressure relief fixing member is pressed against the second bend; when the internal pressure of the box increases, the second bend gradually disengages from the pressure relief fixing member at least partially.

[0009] In some embodiments, the pressure relief fastener is a second screw, and the fixing frame has a second fixing hole; the second screw passes through the second fixing hole and abuts against the second bend.

[0010] In some embodiments, a second countersunk groove is provided on the outer side of the fixing frame, and the head of the second screw is received in the second countersunk groove.

[0011] In some embodiments, the housing assembly further includes auxiliary fasteners, which are fixedly connected to the fixing frame and abut against the pressure relief plate on the sides other than the first and second sides.

[0012] In some embodiments, there are multiple mounting fasteners, which are spaced apart along a first side; and / or, there are multiple pressure relief fasteners, which are spaced apart along a second side.

[0013] A second aspect of this application provides a photovoltaic device, including electronic components and a housing assembly as described in the first aspect, wherein the electronic components are disposed within the housing assembly.

[0014] With the housing assembly and photovoltaic equipment provided in this application, when the internal pressure of the housing increases, the air pressure impacts the pressure relief plate. Since the connection strength between the second side and the pressure relief fixing component is relatively weak, the second side can gradually detach from the pressure relief fixing component and the fixing frame at least partially. At the same time, the pressure relief plate is bent and deformed and stretched open, resulting in a ventilation gap between the pressure relief plate and the pressure relief port. The gas inside the housing can be discharged to the outside through the ventilation gap, quickly releasing the internal pressure and realizing the function of rapid pressure relief to prevent explosion. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the housing assembly provided in this application under normal conditions.

[0016] Figure 2 This is a schematic diagram of the structure of the housing assembly provided in this application during the pressure relief assembly.

[0017] Figure 3 This is a schematic diagram of the pressure relief assembly provided in this application.

[0018] Figure 4 This is an exploded view of the pressure relief assembly provided in this application, in which the pressure relief plate is in a state of bending deformation.

[0019] Figure 5 This is a schematic diagram of the pressure relief assembly provided in this application under normal conditions.

[0020] Figure 6 This is a schematic diagram of the pressure relief assembly provided in this application during pressure relief.

[0021] Figure 7This is a cross-sectional schematic diagram of the pressure relief assembly provided in this application.

[0022] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0023] Figure 9 for Figure 7 A magnified view of a section at point B.

[0024] Figure 10 for Figure 4 A magnified view of a section at point C.

[0025] Explanation of main component symbols

[0026] 100. Housing; 101. Mounting port; 200. Pressure relief assembly; 10. Pressure relief plate; 11. First side; 12. Second side; 13. Third side; 14. Fourth side; 15. First bend; 151. Perforation; 16. Second bend; 17. Third bend; 20. Fixing frame; 21. Pressure relief port; 22. Ventilation gap; 23. Groove; 24. First fixing hole; 241. First countersunk groove; 25. Second fixing hole; 251. Second countersunk groove; 26. Third fixing hole; 261. Third countersunk groove; 27. Threaded groove; 30. Mounting fastener; 31. First screw; 40. Pressure relief fastener; 41. Second screw; 50. Auxiliary fastener; 51. Third screw. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0028] In the description of the embodiments in this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0029] This application provides a housing component and photovoltaic equipment, which have the technical effect of improving safety.

[0030] This application first provides a housing assembly for use in photovoltaic equipment. Exemplarily, the photovoltaic equipment includes electronic components and a housing assembly, with the electronic components housed within the housing assembly, which protects them. The electronic components include, but are not limited to, an inverter module, a control module, a battery management module, passive components (such as capacitors and inductors), and sensors, and can be configured according to the specific application scenario.

[0031] like Figure 1 and Figure 2 As shown, the enclosure assembly includes an enclosure 100 and a pressure relief assembly 200, with the pressure relief assembly 200 disposed within the enclosure 100. The enclosure 100 has an internal cavity for housing electronic components, and a mounting port 101 is provided on the side of the enclosure 100, to which the pressure relief assembly 200 is fixed. The pressure relief assembly 200 maintains a seal under normal operating conditions and creates a vent gap 22 when the internal pressure of the enclosure 100 increases to a certain level. Gas inside the enclosure 100 can then be discharged to the outside through the vent gap 22, rapidly releasing internal pressure and achieving a quick pressure relief function.

[0032] In the example of this application, there are multiple sets of pressure relief components 200, which are spaced apart on the side of the enclosure 100. It can be understood that the number, position, size, area, shape, etc. of the pressure relief components 200 can be adjusted according to actual needs to achieve directional pressure relief of the enclosure 100 at a specified location, while adapting to different pressure relief requirements and providing different pressure relief capabilities.

[0033] Please refer to the following: Figure 3 and Figure 4 In this embodiment, the pressure relief assembly 200 includes a pressure relief plate 10, a fixing frame 20, a mounting fastener 30, and a pressure relief fastener 40. The fixing frame 20 is connected to the housing 100 and has a pressure relief port 21 communicating with the interior of the housing 100. The pressure relief plate 10 covers the pressure relief port 21. The pressure relief plate 10 has a first side 11 and a second side 12 spaced apart. The mounting fastener 30 is fixedly connected to the fixing frame 20 and to the first side 11. The pressure relief fastener 40 is fixedly connected to the fixing frame 20 and abuts against the second side 12. When the internal pressure of the housing 100 increases, the second side 12 gradually detaches at least partially from the pressure relief fastener 40, and the pressure relief plate 10 deforms, forming a breathable gap 22 between the pressure relief plate 10 and the pressure relief port 21.

[0034] It is understandable that by using the mounting fastener 30 to fix the first side 11 and the pressure relief fastener 40 to abut against the second side 12, the connection strength of the first side 11 of the pressure relief plate 10 is greater than that of the second side 12, forming a structure with unequal connection strength on both sides.

[0035] Please refer to the following: Figure 5 and Figure 6 During normal operation, the mounting fastener 30 fixes the first side 11 to the fixing frame 20, and the pressure relief fastener 40 fixes the second side 12 to the fixing frame 20, thus fixing the pressure relief plate 10 to the fixing frame 20. When the internal pressure of the housing 100 increases, the air pressure impacts the pressure relief plate 10. Due to the relatively weak connection strength of the second side 12, under the action of air pressure, the second side 12 can undergo relative displacement with the pressure relief fastener 40. When the high pressure inside the housing 100 reaches a specified threshold, the clamping force of the pressure relief fastener 40 on the second side 12 can no longer maintain the fixation of the second side 12, causing the second side 12 to gradually detach from the pressure relief fastener 40 and the fixing frame 20, at least partially. At the same time, the pressure relief plate 10 bends and deforms, causing it to be stretched open, resulting in a venting gap 22 between the pressure relief plate 10 and the pressure relief port 21. The gas inside the housing 100 can be discharged to the outside through the venting gap 22, quickly releasing the internal pressure and achieving the function of rapid pressure relief to prevent explosion.

[0036] On the other hand, since the connection strength of the first side 11 is relatively strong, during the process of the pressure relief plate 10 being opened by air pressure, the pressure relief plate 10 can maintain a connection with the fixed frame 20 through the first side 11, preventing the pressure relief plate 10 from being blown away directly, and further improving the safety performance.

[0037] In this embodiment, there are multiple mounting fasteners 30, which are spaced apart along the first side 11. The multiple mounting fasteners 30 simultaneously fix the first side 11 to the fixing frame 20. In the example of this application, the number of mounting fasteners 30 is 4. In other embodiments, the number of mounting fasteners 30 can be adjusted according to the required connection strength of the pressure relief plate 10. For example, in scenarios with relatively large air pressure impacts or high safety requirements, the number of mounting fasteners 30 can be increased; in scenarios with relatively small air pressure impacts or low safety requirements, the number of mounting fasteners 30 can be reduced. This application does not impose any limitations on this.

[0038] In this embodiment, there are multiple pressure relief fasteners 40, which are spaced apart along the second side 12. The multiple pressure relief fasteners 40 simultaneously fix the second side 12 to the fixing frame 20, and allow the second side 12 to detach under pressure impact. In the example of this application, the number of pressure relief fasteners 40 is 4. In other embodiments, the number of pressure relief fasteners 40 can be adjusted according to a set threshold reached by the instantaneously generated high pressure inside the housing 100. For example, if the set threshold is relatively large, the number of pressure relief fasteners 40 can be increased; if the set threshold is relatively small, the number of fasteners 30 can be reduced. This application does not impose any limitations on this.

[0039] In some embodiments, the housing assembly further includes an auxiliary fastener 50, wherein the auxiliary fastener 50 is fixedly connected to the fixing frame 20 and abuts against the other sides of the pressure relief plate 10 except for the first side 11 and the second side 12, and the mounting fastener 30, the auxiliary fastener 50 and the pressure relief fastener 40 are distributed circumferentially around the pressure relief plate 10.

[0040] During normal operation, the auxiliary fastener 50 cooperates with the mounting fastener 30 and the pressure relief fastener 40 to fix the pressure relief plate 10 to the fixing frame 20, improving the installation stability of the pressure relief plate 10. When the internal pressure of the housing 100 increases, the pressure relief plate 10 can gradually detach from the auxiliary fastener 50, and at the same time, the pressure relief plate 10 undergoes bending deformation and is stretched open, resulting in a ventilation gap 22 between the pressure relief plate 10 and the pressure relief port 21, thereby achieving the function of rapid pressure relief.

[0041] Please refer to the following: Figure 7 In this embodiment, the outer frame of the fixing frame 20 is rectangular, and the inner frame of the fixing frame 20 forms a pressure relief port 21. Mounting fasteners 30, auxiliary fasteners 50, and pressure relief fasteners 40 are distributed circumferentially around the fixing frame 20 and are respectively connected to the pressure relief plate 10. In the assembly process, the pressure relief plate 10 can be first installed and fixed to the fixing frame 20 using the mounting fasteners 30, pressure relief fasteners 40, and auxiliary fasteners 50, and then the fixing frame 20 can be installed and fixed to the housing 100. This reduces the assembly difficulty between the pressure relief plate 10 and various fasteners, improving installation efficiency and production benefits.

[0042] For example, the fixing frame 20 is fixed to the housing 100 by welding to ensure the stability of the connection between the fixing frame 20 and the housing 100. In other embodiments, the fixing frame 20 can also be fixed by bolting, interference fit, etc., and this application does not limit this.

[0043] For example, a groove 23 is provided on the side of the fixing frame 20 away from the interior of the housing 100, and the groove 23 is distributed in a ring around the fixing frame 20. The groove 23 is used for the installation of the pressure relief plate 10, which has a positioning effect on the pressure relief plate 10 and improves the installation stability of the pressure relief plate 10.

[0044] Please refer to the following: Figure 8 For example, the fixing frame 20 has a first fixing hole 24 corresponding to the mounting fastener 30. The first fixing hole 24 penetrates the outer side of the fixing frame 20 and communicates with the groove 23. The first fixing hole 24 is used for the mounting fastener 30 to pass through and to fix the mounting fastener 30 to the pressure relief plate 10.

[0045] For example, a first countersunk groove 241 is also provided on the outer side of the fixing frame 20. The first countersunk groove 241 is connected to the first fixing hole 24. The first countersunk groove 241 is used to partially accommodate the mounting fastener 30 to prevent the mounting fastener 30 from protruding from the outer surface of the fixing frame 20, allowing the fixing frame 20 to be directly embedded into the mounting opening 101. On the other hand, when the fixing frame 20 is fixed to the mounting opening 101, the housing 100 covers the first countersunk groove 241 and blocks the mounting fastener 30. This not only prevents the mounting fastener 30 from detaching from the fixing frame 20 and improves the stability of the mounting fastener 30, but also prevents the mounting fastener 30 from damaging the appearance integrity of the housing 100.

[0046] Please refer to the following: Figure 9 For example, the fixing frame 20 has a second fixing hole 25 corresponding to the pressure relief fixing member 40. The second fixing hole 25 penetrates the outer side of the fixing frame 20 and communicates with the groove 23. The second fixing hole 25 is used for the pressure relief fixing member 40 to pass through and to achieve a tight connection between the pressure relief fixing member 40 and the pressure relief plate 10.

[0047] For example, a second countersunk groove 251 is also provided on the outer side of the fixing frame 20. The second countersunk groove 251 is connected to the second fixing hole 25. The second countersunk groove 251 is used to partially accommodate the pressure relief fixing member 40 to prevent the pressure relief fixing member 40 from protruding from the outer surface of the fixing frame 20, allowing the fixing frame 20 to be directly embedded into the mounting opening 101. On the other hand, when the fixing frame 20 is fixed to the mounting opening 101, the housing 100 covers the second countersunk groove 251 and blocks the pressure relief fixing member 40. This not only prevents the pressure relief fixing member 40 from detaching from the fixing frame 20 and improves the stability of the pressure relief fixing member 40, but also prevents the pressure relief fixing member 40 from damaging the appearance integrity of the housing 100.

[0048] Please refer to the following: Figure 10 For example, the fixing frame 20 has a third fixing hole 26 corresponding to the auxiliary fixing member 50. The third fixing hole 26 penetrates the outer side of the fixing frame 20 and communicates with the groove 23. The third fixing hole 26 is used for the auxiliary fixing member 50 to pass through and to achieve a tight connection between the auxiliary fixing member 50 and the pressure relief plate 10.

[0049] For example, a third countersunk groove 261 is also provided on the outer side of the fixing frame 20. The third countersunk groove 261 is connected to the third fixing hole 26. The third countersunk groove 261 is used to partially accommodate the auxiliary fixing member 50 to prevent the auxiliary fixing member 50 from protruding from the outer surface of the fixing frame 20, allowing the fixing frame 20 to be directly embedded into the mounting opening 101. On the other hand, when the fixing frame 20 is fixed to the mounting opening 101, the housing 100 covers the third countersunk groove 261 and blocks the auxiliary fixing member 50. This not only prevents the auxiliary fixing member 50 from detaching from the fixing frame 20 and improves the stability of the auxiliary fixing member 50, but also prevents the auxiliary fixing member 50 from damaging the appearance integrity of the housing 100.

[0050] In this embodiment, the shape of the pressure relief plate 10 is adapted to the shape of the fixing frame 20, and the pressure relief plate 10 covers the pressure relief port 21. For example, the pressure relief plate 10 is generally rectangular, and its multiple sides are defined as a first side 11, a second side 12, a third side 13, and a fourth side 14. The length direction of the pressure relief plate 10 is defined as the first direction (…). Figure 3 The X direction in the middle), the width direction of the pressure relief plate 10 is the second direction ( Figure 3 In the Y direction), the thickness direction of the pressure relief plate 10 is the third direction ( Figure 3 (in the Z direction). Among them, the first side 11 and the second side 12 are arranged opposite to each other in the first direction of the pressure relief plate 10, and the third side 13 and the fourth side 14 are arranged opposite to each other in the second direction of the pressure relief plate 10.

[0051] In this embodiment, a first bend 15 is provided on the first side 11, and the first bend 15 is embedded in the fixing frame 20. The mounting fastener 30 is fixedly connected to the first bend 15. When the internal pressure of the box 100 increases, the pressure relief plate 10 can deform at the first bend 15.

[0052] For example, the first bent portion 15 is formed by bending a protrusion formed on the first side 11, the first bent portion 15 is embedded in the groove 23 in the third direction, and the first bent portion 15 is firmly fixed to the fixing frame 20 by the mounting fastener 30.

[0053] The first bend 15 increases the deformation range of the first side 11. When the internal pressure of the housing 100 increases, and the pressure relief fastener 40 can no longer maintain the second side 12, the pressure relief plate 10 can bend at the first bend 15, causing it to open and quickly form a ventilation gap 22, thus triggering the pressure relief plate 10 to open. Furthermore, the perforation 151 ensures a tight connection between the first screw 31 and the first bend 15, increasing the connection strength between the first side 11 and the fixing frame 20, and preventing the pressure relief plate 10 from flying out due to high-pressure impact.

[0054] In this embodiment, the mounting fastener 30 is a first screw 31. The first bent portion 15 has a through hole 151. The fixing frame 20 has a first fixing hole 24. The first screw 31 passes through the first fixing hole 24 and the through hole 151, and is fixedly connected to the first side 11 and the fixing frame 20.

[0055] For example, the through hole 151 penetrates the first bend 15 along the first direction. The first fixing hole 24 penetrates the fixing frame 20 along the first direction, and the inner wall of the first fixing hole 24 is provided with an internal thread. The first fixing hole 24 penetrates one side of the groove wall of the recess 23, and the other side of the groove wall of the recess 23 is provided with a threaded groove 27. The head of the first screw 31 is received in the first countersunk groove 241. The screw shank of the first screw 31 passes through the first fixing hole 24, the through hole 151 and the threaded groove 27 in sequence, and is threadedly connected to the fixing frame 20.

[0056] It is worth noting that the area of ​​the air gap 22 formed by the pressure relief plate 10 can be determined by the angle at which the pressure relief plate 10 is stretched when it undergoes bending deformation, and the bending angle of the pressure relief plate 10 can be determined by the degree of deformation of the first bending part 15. Therefore, the material, thickness, etc. of the pressure relief plate 10 can be configured according to the actual required pressure relief area, and this application does not impose any restrictions on this.

[0057] In this embodiment, a second bend 16 is provided on the second side 12, and the second bend 16 is embedded in the fixing frame 20. The pressure relief fixing member 40 abuts against the second bend 16. When the internal pressure of the housing 100 increases, the second bend 16 gradually disengages from the pressure relief fixing member 40 at least partially. For example, the second bend 16 is formed by bending a protrusion formed on the second side 12, and the second bend 16 is embedded in the groove 23 in a third direction.

[0058] In this embodiment, the pressure relief fixing component 40 is the second screw 41. The fixing frame 20 has a second fixing hole 25. The second screw 41 passes through the second fixing hole 25 and abuts against the second side 12.

[0059] For example, the second fixing hole 25 extends through the fixing frame 20 along the first direction, and the inner wall of the second fixing hole 25 is provided with an internal thread. The head of the second screw 41 is received in the second countersunk groove 251. The shank of the second screw 41 passes through the second fixing hole 25, is threadedly connected to the fixing frame 20, and abuts against the second bent portion 16.

[0060] By utilizing the second bend 16, the contact area between the second side 12 and the second screw 41 can be increased, improving the clamping effect of the second screw 41 on the pressure relief plate 10. During normal operation, the second screw 41 is clamped against the second bend 16 in the first direction, so that the second bend 16 is stably embedded in the fixed frame 20. When the internal pressure of the housing 100 increases, the air pressure has an impact force on the pressure relief plate 10 in the third direction. When the high pressure inside the housing 100 reaches a specified threshold, the second bend 16 will gradually disengage from the second screw 41 and the groove 23 in the third direction, so that a venting gap 22 is formed between the second side 12 of the pressure relief plate 10 and the pressure relief port 21, realizing the function of rapid pressure relief.

[0061] It is worth noting that the pressure threshold at which the pressure relief plate 10 disengages from the second screw 41 during a pressure impact can be determined by the number of the second screws 41 and the tightening force. Therefore, the number and selection of the second screws 41 can be configured according to the actual pressure threshold required for pressure relief, and this application does not impose any restrictions on this.

[0062] In this embodiment, a third bend 17 is provided on the side corresponding to the auxiliary fastener 50, and the third bend 17 is embedded in the fixing frame 20. The pressure relief fastener 40 abuts against the second bend 16. The auxiliary fastener 50 is a third screw 51. The fixing frame 20 has a third fixing hole 26. The third screw 51 passes through the third fixing hole 26 and abuts against the corresponding side. For example, the third fixing hole 26 extends through the fixing frame 20 in the second direction, and the inner wall of the third fixing hole 26 is provided with an internal thread. The head of the third screw 51 is received in the third countersunk groove 261. The shank of the third screw 51 passes through the third fixing hole 26, is threadedly connected to the fixing frame 20, and abuts against the third bend 17.

[0063] By utilizing the third bend 17, the contact area between the pressure relief plate 10 and the third screw 51 can be increased, improving the clamping effect of the third screw 51 on the pressure relief plate 10. During normal operation, the third screw 51 is clamped against the third bend 17 in the second direction, so that the third bend 17 is stably embedded in the fixed frame 20. When the internal pressure of the housing 100 increases, the air pressure has an impact force on the pressure relief plate 10 in the third direction. When the high pressure inside the housing 100 reaches a specified threshold, the third bend 17 will gradually disengage from the third screw 51 and the groove 23 in the third direction, causing the third side 13 and the fourth side 14 of the pressure relief plate 10 to separate from the pressure relief port 21, increasing the area of ​​the ventilation gap 22 and improving the pressure relief effect.

[0064] It is worth noting that, in the example of this application, when the enclosure assembly is in normal use, the first direction is parallel to the vertical direction, the first side 11 is the lower side of the pressure relief plate 10, and the second side 12 is the upper side of the pressure relief plate 10. Thus, when the internal pressure of the enclosure 100 increases, the upper side of the pressure relief plate 10 can be opened to form a ventilation gap 22, allowing high-temperature gas to quickly escape upwards from the outside of the enclosure 100, thereby improving the pressure relief and exhaust efficiency.

[0065] This application also provides a photovoltaic device. Specifically, the photovoltaic device can be a photovoltaic inverter. The photovoltaic device includes electronic components and a housing assembly as described in any of the above embodiments, with the electronic components disposed within the housing assembly.

[0066] like Figure 1 and Figure 2 As shown, the enclosure assembly includes an enclosure 100 and a pressure relief assembly 200, with the pressure relief assembly 200 disposed within the enclosure 100. The enclosure 100 has an internal cavity for housing electronic components, and a mounting port 101 is provided on the side of the enclosure 100, to which the pressure relief assembly 200 is fixed. The pressure relief assembly 200 maintains a seal under normal operating conditions and creates a vent gap 22 when the internal pressure of the enclosure 100 increases to a certain level. Gas inside the enclosure 100 can then be discharged to the outside through the vent gap 22, rapidly releasing internal pressure and achieving a quick pressure relief function.

[0067] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments described above should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application.

Claims

1. A box assembly, characterized in that, Includes a housing and a pressure relief assembly disposed within the housing, the pressure relief assembly comprising: A fixed frame is connected to the box body, and the fixed frame is provided with a pressure relief port that communicates with the inside of the box body; A pressure relief plate, which blocks the pressure relief port, has a first side and a second side that are spaced apart; The mounting fastener is fixedly connected to the fixed frame and fixedly connected to the first side; The pressure relief fastener is fixedly connected to the fixed frame and abuts against the second side; When the internal pressure of the box increases, at least part of the second side gradually detaches from the pressure relief fixing member, and the pressure relief plate deforms to form an air-permeable gap between the pressure relief plate and the pressure relief port.

2. The box assembly of claim 1, wherein, The first side is provided with a first bend, which is embedded in the fixed frame; the mounting fastener is fixedly connected to the first bend; when the internal pressure of the box increases, the pressure relief plate can deform at the first bend.

3. The box assembly of claim 2, wherein, The mounting fastener is a first screw, the first bent portion has a through hole, and the fixing frame has a first fixing hole; the first screw passes through the first fixing hole and the through hole, and is fixedly connected to the first bent portion and the fixing frame.

4. The box assembly of claim 3, wherein, The outer side of the fixing frame is provided with a first countersunk groove, and the head of the first screw is received in the first countersunk groove.

5. The box assembly of claim 1, wherein, The second side is provided with a second bend, which is embedded in the fixed frame; the pressure relief fixing member is pressed against the second bend; when the internal pressure of the box increases, the second bend gradually disengages from the pressure relief fixing member at least partially.

6. The box assembly of claim 5, wherein, The pressure relief fixing component is a second screw, and the fixing frame has a second fixing hole; the second screw passes through the second fixing hole and abuts against the second bent part.

7. The box assembly of claim 6, wherein, The outer side of the fixing frame is provided with a second countersunk groove, and the head of the second screw is received in the second countersunk groove.

8. The box assembly of claim 1, wherein, The housing assembly also includes auxiliary fasteners, which are fixedly connected to the fixing frame and abut against the pressure relief plate on all sides except the first and second sides.

9. The box assembly of claim 1, wherein, The mounting fasteners are multiple, and the multiple mounting fasteners are spaced apart along the first side; and / or, The pressure relief fasteners are multiple, and the multiple pressure relief fasteners are distributed at intervals along the second side.

10. A photovoltaic device, characterized by It includes electronic components and a housing assembly as described in any one of claims 1 to 9, wherein the electronic components are disposed within the housing assembly.

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