Electronic device with explosion-proof valve

By installing an explosion-proof valve on the housing of the electronic device and using elastic shielding parts and connectors to automatically open the vent hole when the internal pressure is too high, the structural damage and safety hazards caused by the explosion of the sealed electronic device are solved, and safe pressure release and component protection are achieved.

CN223415103UActive Publication Date: 2025-10-03DELTA ELECTRONICS INC(CN)
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Patent Information

Application Number
CN202422589127.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-06-06
Filing Date
2024-10-25
Publication Date
2025-10-03
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

When a sealed electronic device explodes, the internal gas expansion cannot be effectively released, causing structural damage and safety hazards, especially the upper cover flying off and electrolyte diffusion in a sealed environment affecting the normal operation of the device.

Method used

An explosion-proof valve is provided on the housing of the electronic device, comprising an elastic shielding member and a connecting member. When the internal pressure is too high, the valve automatically opens to release gas through the vent hole to prevent the housing from flying away and the electrolyte from diffusing.

Benefits of technology

Effectively release internal pressure, avoid shell flying and electrolyte diffusion, improve device safety and reliability, and protect internal components from damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electronic device with an anti-explosion valve. The electronic device comprises a device body and the anti-explosion valve. The device body comprises a shell and an electronic assembly arranged in the shell, and the shell is provided with a containing space and an air leakage hole communicated with the containing space. The explosion-proof valve comprises an elastic shielding piece and a connecting piece connected with the elastic shielding piece, the explosion-proof valve is arranged adjacent to the air leakage hole through the connecting piece, and the air leakage hole is shielded by the elastic shielding piece, so that the shell is sealed; therefore, the purpose of releasing the pressure is achieved when the internal pressure exceeds a safety range.
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Description

Technical Field

[0001] This case relates to explosion-proof structures, particularly electronic devices with explosion-proof valves. Background Art

[0002] In electronic devices, when internal temperatures exceed the specifications of certain electronic components, or when the component materials themselves age or internal circuitry malfunctions, electrolytic capacitors or power modules can explode and generate intense internal pressure. This pressure can cause the gas inside the device to rapidly expand, leading to serious structural damage. Especially in sealed environments, if pressure cannot be effectively released, it can push against the upper cover or other structural components within the device, even causing the casing to fly off, crack, or deform.

[0003] The expansion of gases following an explosion in a sealed electronic device can cause the top cover or other external components to instantly fly away, posing a potential safety hazard to the surrounding environment. More seriously, the diffusion of electrolyte can damage the device's internal electronic components, further impacting the normal operation and lifespan of the entire device. Therefore, the applicant's research motivation is to design a pressure relief device within the sealed device's housing to effectively release pressure when internal pressure exceeds a safe range, thereby avoiding structural damage and top cover flying due to pressure buildup.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned existing technologies and applied scientific theories to try his best to solve the above-mentioned problems, which has become the goal of the applicant's improvement. Summary of the Invention

[0005] One purpose of this case is to provide an electronic device with an explosion-proof valve, wherein the explosion-proof valve is provided on the device body for pressure release, thereby achieving the purpose of pressure release when the internal pressure exceeds a safe range.

[0006] To achieve the aforementioned objectives, this invention provides an electronic device with an explosion-proof valve, comprising a device body and an explosion-proof valve. The device body comprises a housing and an electronic component disposed within the housing. The housing defines a storage space and is provided with an air vent communicating with the storage space. The explosion-proof valve comprises an elastic shielding member and a connector connected to the elastic shielding member. The explosion-proof valve is positioned adjacent to the air vent via the connector. The air vent is shielded by the elastic shielding member, thereby sealing the housing.

[0007] In one embodiment of the present case, the housing includes a base and an upper cover. The base and the upper cover are fixed together by a plurality of screws, and an air vent is provided on the base.

[0008] In one embodiment of the present case, a coupling hole is provided on the shell adjacent to the air leakage hole, and the connecting member is passed through the coupling hole.

[0009] In one embodiment of the present case, the air leakage hole includes a plurality of fan-shaped holes, which are arranged at intervals and surround the combining hole.

[0010] In one embodiment of the present case, the air leakage holes include a plurality of circular holes, which are arranged in groups and arranged around the combining hole.

[0011] In one embodiment of the present case, the elastic shielding member covers the vent hole from the outside of the shell. The elastic shielding member extends outward with the coupling hole as the center, so that the bottom edge of the elastic shielding member abuts against the outer periphery of the vent hole in the shell.

[0012] In one embodiment of the present case, the elastic shielding member is configured in an umbrella shape.

[0013] In one embodiment of the present case, the elastic shielding member and the connecting member are separable from each other.

[0014] In one embodiment of the present invention, the connecting member includes a stud and a nut. The stud is coupled to the elastic shielding member and is locked to the housing via the nut.

[0015] In one embodiment of the present case, the connecting member includes a column and a hook. The column is combined with the elastic shielding member, and the elastic shielding member is positioned on the housing by the hook.

[0016] Compared to conventional devices, this design incorporates a vent hole in the device's housing and incorporates an explosion-proof valve into the hole. Furthermore, the explosion-proof valve includes an elastic shielding member and a connector. The elastic shielding member shields the vent hole, thereby sealing the housing. Furthermore, the elastic shielding member deforms when pushed by internal gas, exposing the vent hole. This allows internal gas to escape through the vent hole, preventing the housing from being blown away due to excessive internal pressure, potentially harming personnel and enhancing safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 and Figure 2 It is a three-dimensional schematic diagram of the appearance of the electronic device with an explosion-proof valve in this case from both sides.

[0018] Figure 3 This is a three-dimensional exploded schematic diagram of the explosion-proof valve in this case.

[0019] Figure 4 It is a schematic diagram of the combination of the explosion-proof valve and the shell in this case.

[0020] Figure 5 This is a schematic diagram of the explosion-proof valve combined with the vent hole in this case.

[0021] Figure 6 It is a combined cross-sectional view of the electronic device with an explosion-proof valve in this case.

[0022] Figure 7It is a partially enlarged schematic diagram of the electronic device with an explosion-proof valve in this case.

[0023] Figure 8 It is a schematic diagram of the use of the electronic device with an explosion-proof valve in this case.

[0024] Figure 9 It is a perspective exploded schematic diagram of another embodiment of the electronic device with an explosion-proof valve in this case.

[0025] Figure 10 It is a combined schematic diagram of another embodiment of the electronic device with an explosion-proof valve in this case.

[0026] Figure 11 It is a combined cross-sectional view of another embodiment of the electronic device with an explosion-proof valve in this case. DETAILED DESCRIPTION

[0027] The detailed description and technical content of this case are described below with reference to the accompanying drawings. However, the drawings are provided for reference and illustration only and are not intended to limit this case.

[0028] Please refer to Figure 1 and Figure 2 , which is a schematic diagram of the three-dimensional appearance of the electronic device with an explosion-proof valve in the present case from both sides. The present case is an electronic device 1 with an explosion-proof valve, comprising a device body 10 and an explosion-proof valve 20. The device body 10 includes a shell 11 and an electronic component 12 disposed in the shell 11. The shell 11 has a accommodating space 100 and is provided with at least one air vent 13 connected to the accommodating space 100. In this embodiment, the shell 11 includes a base 111 and an upper cover 112, and the base 111 and the upper cover 112 are locked by a plurality of screws 113. In addition, the device body 10 is an electronic device, and the electronic component 12 is disposed on a circuit board 15, but is not limited to this.

[0029] Furthermore, the explosion-proof valve 20 is mounted on the device body 10, sealing the housing 11 and ensuring that the interior of the housing 11 is waterproof and dustproof. Accordingly, if the electronic components 12 of the device body 10 explode, the gas within the housing 11 expands due to the explosion pressure. When the internal pressure of the housing 11 reaches a critical value, the explosion-proof valve 20 is pushed open by the internal gas, allowing the gas to be discharged to balance the internal and external pressures. This prevents the upper cover 112 from being ejected by the pressure of the internal gas and impacting external personnel or objects. The structure of the explosion-proof valve 20 is described in more detail below.

[0030] Please refer to Figures 3 to 5, which is a schematic diagram of a three-dimensional exploded view of the explosion-proof valve in this case, a schematic diagram of the explosion-proof valve and housing assembly, and a schematic diagram of the explosion-proof valve assembly in the air vent. The explosion-proof valve 20 in this case includes an elastic shielding member 21 and a connecting member 22 connected to the elastic shielding member 21. The explosion-proof valve 20 is positioned adjacent to the air vent 13 via the connecting member 22. Furthermore, the air vent 13 is shielded by the elastic shielding member 21, thereby sealing the housing 11. Specifically, the housing 11 is provided with a coupling hole 14 adjacent to the air vent 13. The connecting member 22 is inserted into the coupling hole 14.

[0031] In this embodiment, the elastic shielding member 21 and the connecting member 22 are detachable from each other, and the elastic shielding member 21 is configured in an umbrella shape. The connecting member 22 includes a stud 221 and a nut 222. The stud 221 is coupled to the elastic shielding member 21 and secured to the housing 11 via the nut 222. Furthermore, the air vent 13 includes a plurality of fan-shaped holes 131. These fan-shaped holes 131 are arranged at intervals and surround the connecting hole 14.

[0032] In actual use, the elastic shielding member 21 can be made of materials such as silicone, plastic, or memory metal (such as titanium) to provide elastic deformation. The connecting member 22 can be configured as a stud with a threaded structure. Alternatively, the elastic shielding member 21 and the connecting member 22 can be integrally molded by overmolding.

[0033] Please refer to Figures 6 to 8 , which is a combined cross-sectional view, a partial enlarged schematic view and a schematic view of the electronic device with an explosion-proof valve in this case. Figure 6 As shown, the electronic assembly 12 of this embodiment is mounted on a circuit board 15. The explosion-proof valve 20 is mounted in the base 111 of the housing 11. Furthermore, the device body 10 is further provided with a heat sink 16. The heat sink 16 is located on the exterior of the housing 11 near the circuit board 15, thereby removing heat from the housing 11.

[0034] like Figure 7 As shown, the base 111 of the housing 11 is provided with an air vent 13, and a coupling hole 14 is provided adjacent to the air vent 13. Furthermore, an elastic shielding member 21 extends from the exterior of the housing 11 to cover the air vent 13. The elastic shielding member 21 extends outwardly with the coupling hole 14 as its center, so that the bottom edge of the elastic shielding member 21 abuts the housing and is located outside the air vent 13.

[0035] like Figure 8As shown, when the electronic component 12 of the device body 10 of this case fails (such as an electrolytic capacitor explosion), a large amount of gas may be generated instantaneously. The elastic shielding member 21 of the explosion-proof valve 20 will be pushed by the internal gas and deformed. In addition, under the supporting force of the connecting member 22, the central part of the elastic shielding member 21 is still fixed on the shell 11, but the periphery of the elastic shielding member 21 will be deformed, thereby exposing the air leakage hole 13. Accordingly, the internal gas can be discharged to the outside from the air leakage hole 13, thereby balancing the internal and external pressures, thereby avoiding the situation where the upper cover 112 is blown away due to excessive internal pressure.

[0036] Please continue to refer to Figures 9 to 11 , which are a three-dimensional exploded schematic diagram, an assembled schematic diagram, and an assembled cross-sectional view of another embodiment of the electronic device with an explosion-proof valve of the present case. This embodiment is roughly the same as the previous embodiment. The electronic device 1a with an explosion-proof valve includes a device body 10a and an explosion-proof valve 20a. The device body 10a includes a shell 11a and an electronic component 12a disposed in the shell 11a, and the shell 11a is provided with an air vent 13a and a coupling hole 14a. The explosion-proof valve 20a includes an elastic shielding member 21a and a connecting member 22a connected to the elastic shielding member 21a. The difference in this embodiment lies in the structure of the air vent 13a and the connecting member 22a.

[0037] In this embodiment, the air vent 13a includes a plurality of circular holes 131a, and the plurality of circular holes 131a are arranged in groups and arranged around the coupling hole 14a. In addition, the connecting member 22a is provided separately from the elastic shielding member 21a. The connecting member 22a includes a column 221a and a hook 222a. The column 221a is passed through and coupled to the elastic shielding member 21a. The elastic shielding member 21a is positioned on the shell 11a by snapping the coupling hole 14a with the hook 222a. Accordingly, the explosion-proof valve 20a is provided on the device body 10a, thereby sealing the shell 11a. Furthermore, when the internal pressure of the shell 11 reaches a critical value, the device body 10a can discharge the internal gas through the operation of the explosion-proof valve 20a, thereby balancing the internal and external pressures of the shell 11.

[0038] The above description is only a preferred embodiment of this case and is not intended to determine the patent scope of this case. Other equivalent variations that apply the patent spirit of this case should all fall within the patent scope of this case.

[0039] Description of Reference Numerals

[0040] 1. 1a: Electronic devices with explosion-proof valves,

[0041] 10, 10a: device body,

[0042] 100: Accommodation space,

[0043] 11, 11a: Shell,

[0044] 111: base,

[0045] 112: Upper cover,

[0046] 113: screws,

[0047] 12, 12a: electronic components,

[0048] 13, 13a: vent hole,

[0049] 131: fan-shaped hole

[0050] 131a: round hole,

[0051] 14, 14a: Combination hole,

[0052] 15: Circuit board,

[0053] 16: heat sink,

[0054] 20, 20a: explosion-proof valve,

[0055] 21, 21a: elastic shielding member,

[0056] 22, 22a: Connectors,

[0057] 221: stud,

[0058] 221a: Column,

[0059] 222: Nut,

[0060] 222a: Hook.

Claims

1. An electronic device having an explosion-proof valve, wherein: include: A device body comprising a housing and an electronic component disposed in the housing, wherein the housing has a receiving space and is provided with at least one air leakage hole communicating with the receiving space; and An explosion-proof valve comprises an elastic shielding member and a connecting member connected to the elastic shielding member. The explosion-proof valve is adjacent to the at least one air leakage hole through the connecting member. The at least one air leakage hole is shielded by the elastic shielding member, thereby sealing the shell.

2. The electronic device with an explosion-proof valve according to claim 1, wherein: The shell includes a base and an upper cover. The base and the upper cover are locked by a plurality of screws, and the base is provided with at least one air leakage hole.

3. The electronic device with an explosion-proof valve according to claim 1, wherein: The shell is provided with a combining hole adjacent to the at least one air leakage hole, and the connecting piece is passed through the combining hole.

4. The electronic device with an explosion-proof valve according to claim 3, wherein: The at least one air leakage hole comprises a plurality of fan-shaped holes, and the plurality of fan-shaped holes are arranged at intervals and surround the combining hole.

5. The electronic device with an explosion-proof valve according to claim 3, wherein: The at least one air leakage hole comprises a plurality of circular holes, and the plurality of circular holes are arranged in groups and arranged around the combining hole.

6. The electronic device with an explosion-proof valve according to claim 3, wherein: The elastic shielding member covers the at least one air leakage hole from the outside of the shell, and the elastic shielding member extends outward with the combining hole as the center, so that the bottom edge of the elastic shielding member abuts against the shell, and the position where the bottom edge of the elastic shielding member abuts against the shell is located outside the at least one air leakage hole.

7. The electronic device with an explosion-proof valve according to claim 1, wherein: The elastic shielding member is arranged in an umbrella shape.

8. The electronic device with an explosion-proof valve according to claim 1, wherein: The elastic shielding member and the connecting member are separable from each other.

9. The electronic device with an explosion-proof valve according to claim 1, wherein: The connecting piece includes a stud and a nut. The stud is combined with the elastic shielding piece and is locked on the shell through the nut.

10. The electronic device with an explosion-proof valve according to claim 1, wherein: The connecting piece includes a column and a hook. The column is combined with the elastic shielding piece. The elastic shielding piece is positioned on the shell through the hook.