Protective cover assembly for explosion-proof membrane assembly and tank-type circuit breaker

Abstract

The utility model provides a protective cover assembly for an explosion-proof membrane assembly and a tank-type circuit breaker. The protective cover assembly (1000) comprises a cylindrical cover body (1200), the cover body is provided with a first closed end (1220), a second open end (1240) and a side portion between the first closed end (1220) and the second open end (1240), and the second open end is arranged on a flange plate of the explosion-proof membrane assembly in a sleeving mode; and a plurality of connectors (1400) each having a first connecting portion (1420) and a second connecting portion (1440) connected into an L shape, the first connecting portion being for connection to a side portion of the cover body, the second connecting portion being for connection to the explosion-proof membrane assembly by one of a plurality of fixing bolts; the cover body further comprises an opening (1260) located in the side portion, and the orientation of the opening can be adjusted by adjusting the connecting position of the cover body relative to the multiple connecting pieces in the circumferential direction of the flange plate. By arranging the opening capable of adjusting the orientation, the opening capable of releasing pressure can be prevented from facing an unwanted direction during installation.

Description

Technical Field

[0001] This disclosure pertains to the technical field of tank-type circuit breakers, and relates to a protective cover assembly for an explosion-proof diaphragm assembly and a tank-type circuit breaker. Background Technology

[0002] Explosion-proof membranes used in tank-type circuit breakers are typically located inside the circuit breaker's casing or protective cover. Their primary function is to prevent the explosion of gases or oils inside the circuit breaker under high pressure. This type of explosion-proof membrane is generally made of metal and is designed to withstand a certain pressure and rupture when a safety threshold is exceeded, thereby releasing the pressure and preventing more serious accidents. The specific location of the explosion-proof membrane may vary depending on the design and model of the tank-type circuit breaker. Explosion-proof membranes can also be made of high-strength materials, capable of withstanding a certain pressure and rapidly releasing it if necessary.

[0003] However, explosion-proof membranes, even those made of high-strength materials, are susceptible to corrosion from external factors when exposed to the outdoors, such as wind and sun, leading to material aging. For metal explosion-proof membranes, electrochemical reactions can occur after corrosion, resulting in rust. All of these forms of corrosion can directly affect the function of the explosion-proof membrane. Furthermore, in existing explosion-proof membrane assemblies, the direction of pressure release from the membrane cannot be chosen; it can only be the direction the membrane faces, which limits the selection of the installation structure.

[0004] Therefore, what is desired is a protective cover assembly for explosion-proof membrane components that can provide protection against environmental erosion, and a protective cover assembly that can adjust the direction of pressure release. Utility Model Content

[0005] In view of this, the present invention aims to provide a protective cover assembly for an explosion-proof membrane assembly, which can be easily installed using the fixing bolts of the explosion-proof membrane assembly, thereby providing protection against environmental corrosion for the explosion-proof membrane, and has an adjustable opening to achieve adjustment of the pressure release direction. The present invention also aims to provide a tank-type circuit breaker including such a protective cover assembly.

[0006] According to one aspect of this utility model, a protective cover assembly for an explosion-proof membrane assembly is provided. The explosion-proof membrane assembly has a flange, a plurality of fixing bolts, and an explosion-proof membrane. The flange is used to fix the explosion-proof membrane to a mounting platform for mounting the explosion-proof membrane assembly by means of the plurality of fixing bolts. The protective cover assembly includes: a cylindrical cover body having a first closed end and a second open end, and a side portion located between the first closed end and the second open end, the cover body being fitted onto the flange through the second open end; and a plurality of connectors, each connector having a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion intersecting and connecting to form an L-shape, the first connecting portion being used to connect to the side portion of the cover body, and the second connecting portion being used to connect to the explosion-proof membrane assembly through one of the plurality of fixing bolts, thereby allowing the cover body to be connected to the explosion-proof membrane assembly through the plurality of connectors; wherein, the cover body also includes an opening located on the side portion, the orientation of the opening can be adjusted by adjusting the connection position of the cover body relative to the plurality of connectors along the circumferential direction of the flange.

[0007] By utilizing the existing fixing bolts of the explosion-proof membrane assembly to install the connectors, the protective cover assembly can be easily and economically installed onto the explosion-proof membrane assembly, thereby providing isolation protection for the explosion-proof membrane; and by setting an adjustable opening, it is possible to avoid pointing the pressure-relieving opening in an unwanted direction during installation.

[0008] Furthermore, the width of the opening is 60° of the central angle of the cylinder.

[0009] By setting the width of the opening to 60° of the central angle of the cylinder, the area of ​​the opening can be increased without compromising the strength of the enclosure.

[0010] Furthermore, the opening is connected to the second open end.

[0011] By configuring the opening to communicate with the second open end, the material at the connection between the second open end and the opening can curl outwards when the pressure is released, thereby increasing the pressure relief area of ​​the opening.

[0012] Furthermore, the first closed end has a rounded corner, and the opening connects to the rounded corner.

[0013] By rounding the first closed end and connecting the opening to the rounded corner, the strength of the cover can be increased and the area of ​​the opening can be maximized.

[0014] Furthermore, the cover is made of aluminum or a polymer composite material.

[0015] By using aluminum or polymer composite materials, the cover can be easily formed and can resist rainwater corrosion.

[0016] Furthermore, the first connecting part is connected to the side of the cover by rivets.

[0017] By using rivets, the cover can be easily secured from the outside after the opening direction has been selected.

[0018] Furthermore, the second connection has a hole through which the connector is secured to the explosion-proof membrane assembly by one of a plurality of fixing bolts passing through the hole.

[0019] By passing one of the multiple fixing bolts through a hole in the second connection, the connector can be easily secured using existing fixing bolts.

[0020] Furthermore, the number of multiple connectors is four.

[0021] By symmetrically placing the four connectors on both sides of the opening, the force on the cover can be balanced during depressurization.

[0022] According to another aspect of the present invention, a tank-type circuit breaker is provided, the tank-type circuit breaker including an explosion-proof membrane assembly and any of the aforementioned protective cover assemblies for the explosion-proof membrane assembly.

[0023] By utilizing the fixing bolts of the explosion-proof membrane assembly, the protective cover assembly can be easily and economically installed, thereby providing the explosion-proof membrane with protection against environmental corrosion. Furthermore, the adjustable opening of the protective cover assembly allows for the selection and adjustment of the pressure release direction.

[0024] The protective cover assembly for explosion-proof membrane components of this utility model can achieve at least the following beneficial technical effects.

[0025] First, by setting up a cover, the explosion-proof membrane is provided with isolation protection.

[0026] Secondly, by utilizing the existing fixing bolts of the explosion-proof membrane assembly to install the connectors, the protective cover assembly can be easily and economically installed onto the explosion-proof membrane assembly.

[0027] Third, by setting an opening with an adjustable orientation, it is possible to avoid pointing the pressure-relieving opening in an unwanted direction during installation. Attached Figure Description

[0028] The features and advantages of one or more embodiments of the present invention will become more readily understood from the following description with reference to the accompanying drawings. The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. The drawings are not drawn to scale and some features may be enlarged or reduced to show details of specific components. In the drawings:

[0029] Figure 1 This is a three-dimensional schematic diagram of the explosion-proof membrane assembly of a tank-type circuit breaker;

[0030] Figure 2This is a schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure;

[0031] Figure 3 This is another schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure, wherein the cover has been removed to show the connector;

[0032] Figure 4 This is another schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure, wherein the opening of the cover is shown.

[0033] Explanation of icon numbers:

[0034] 1000, Protective shield assembly;

[0035] 1200, Cover body; 1220, First closed end; 1240, Second open end;

[0036] 1260. Opening;

[0037] 1400, Connector; 1420, First connecting part; 1440, Second connecting part;

[0038] 2000, Explosion-proof membrane assembly;

[0039] 2200, flange; 2400, fixing bolts; 2600, explosion-proof membrane. Detailed Implementation

[0040] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise.

[0042] According to an embodiment of this application, a protective cover assembly for an explosion-proof membrane assembly is provided. Figure 1 This is a three-dimensional schematic diagram of the explosion-proof diaphragm assembly of a tank-type circuit breaker. (For example...) Figure 1As shown, the explosion-proof membrane assembly 2000 includes a flange 2200, multiple fixing bolts 2400, and an explosion-proof membrane 2600. The flange 2200 is used to secure the explosion-proof membrane 2600 to a mounting platform for mounting the explosion-proof membrane assembly via the multiple fixing bolts 2400. This mounting platform is located, for example, on a tank-type circuit breaker or other equipment where the explosion-proof membrane assembly needs to be installed.

[0043] Figure 2 This is a schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure. Figure 3 This is another schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure, wherein the cover has been removed to show the connector. Figure 4 This is another schematic diagram of a protective cover assembly for an explosion-proof membrane assembly according to one embodiment of the present disclosure, wherein the opening of the cover is shown.

[0044] The protective cover assembly 1000 includes: a cylindrical cover 1200 having a first closed end 1220 and a second open end 1240, and a side portion located between the first closed end 1220 and the second open end 1240, through which the cover 1200 is fitted onto a flange 2200; and a plurality of connectors 1400, each connector 1400 having a first connecting portion 1420 and a second connecting portion 1440, the first connecting portion 1420 and the second connecting portion 1440 intersecting and connecting to form an L-shape. The enclosure 1200 is configured to connect to the side of the cover 1200, and the second connecting portion 1440 is configured to connect to the explosion-proof membrane assembly 2000 via one of a plurality of fixing bolts 2400, thereby connecting the cover 1200 to the explosion-proof membrane assembly 2000 via a plurality of connectors 1400. The cover 1200 also includes an opening 1260 on its side, the orientation of which can be adjusted by adjusting the connection position of the cover 1200 relative to the plurality of connectors 1400 along the circumferential direction of the flange 2200. The connectors 1400 can be easily manufactured by bending sheet metal.

[0045] By utilizing the existing fixing bolts of the explosion-proof membrane assembly to install the connectors, the protective cover assembly can be easily and economically installed onto the explosion-proof membrane assembly, thereby providing isolation protection for the explosion-proof membrane; and by setting an adjustable opening, it is possible to avoid pointing the pressure-relieving opening in an unwanted direction during installation, for example, to prevent rainwater from falling in when the opening is facing upwards, and to prevent the opening from facing other equipment that may be damaged by pressure relief.

[0046] According to one embodiment of this disclosure, the width of the opening 1260 is 60° of the central angle of the cylinder.

[0047] By setting the width of the opening to 60° of the central angle of the cylinder, the area of ​​the opening can be increased without compromising the strength of the enclosure.

[0048] According to one embodiment of the present disclosure, the opening 1260 is connected to the second open end 1240.

[0049] By configuring the opening to communicate with the second open end, the material at the connection between the second open end and the opening can curl outwards when the pressure is released, thereby increasing the pressure relief area of ​​the opening.

[0050] According to one embodiment of this disclosure, the first closed end 1220 has a rounded corner, and the opening 1260 is connected to the rounded corner.

[0051] By rounding the first closed end and connecting the opening to the rounded corner, the strength of the cover can be increased and the area of ​​the opening can be maximized.

[0052] According to one embodiment of this disclosure, the cover 1200 is made of aluminum or a polymer composite material.

[0053] By using aluminum or polymer composite materials, the cover can be easily formed and can resist rainwater corrosion.

[0054] According to one embodiment of this disclosure, the first connecting portion 1420 is connected to the side of the cover 1200 by rivets.

[0055] By using rivets, the cover can be easily secured from the outside after the opening direction has been selected. The rivets can be pull bolts. If adjustments are needed after securing the cover, the opening direction can be readjusted simply by removing the rivets.

[0056] According to one embodiment of the present disclosure, the second connecting portion 1440 has a hole through which the connecting member 1400 is fixed to the explosion-proof membrane assembly 2000 by one of a plurality of fixing bolts 2400 passing through the hole.

[0057] By passing one of the multiple fixing bolts through a hole in the second connection, the connector can be easily secured using existing fixing bolts.

[0058] According to one embodiment of this disclosure, the number of the plurality of connectors 1400 is four.

[0059] By symmetrically placing the four connectors on both sides of the opening, the force on the cover can be balanced during depressurization.

[0060] According to another aspect of the present invention, a tank-type circuit breaker is provided, the tank-type circuit breaker including an explosion-proof membrane assembly and any of the aforementioned protective cover assemblies for the explosion-proof membrane assembly.

[0061] By utilizing the fixing bolts of the explosion-proof membrane assembly, the protective cover assembly can be easily and economically installed, thereby providing the explosion-proof membrane with protection against environmental corrosion. Furthermore, the adjustable opening of the protective cover assembly allows for the selection and adjustment of the pressure release direction.

[0062] The protective cover assembly for explosion-proof membrane components of this utility model can achieve at least the following beneficial technical effects.

[0063] First, by setting up a cover, the explosion-proof membrane is provided with isolation protection.

[0064] Secondly, by utilizing the existing fixing bolts of the explosion-proof membrane assembly to install the connectors, the protective cover assembly can be easily and economically installed onto the explosion-proof membrane assembly.

[0065] Third, by setting an opening with an adjustable orientation, it is possible to avoid pointing the pressure-relieving opening in an unwanted direction during installation.

[0066] The various embodiments and variations of this utility model have been described in detail above. However, those skilled in the art should understand that this utility model is not limited to the specific embodiments and variations described above, but may include various other possible combinations and arrangements. Other variations and modifications can be implemented by those skilled in the art without departing from the spirit and scope of this utility model. All these variations and modifications fall within the scope of this utility model. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A protective cover assembly for an explosion-proof membrane assembly, the explosion-proof membrane assembly (2000) comprising a flange (2200), a plurality of fixing bolts (2400), and an explosion-proof membrane (2600), the flange (2200) being used to fix the explosion-proof membrane (2600) to a mounting platform for mounting the explosion-proof membrane assembly by means of the plurality of fixing bolts (2400), characterized in that, The protective shield assembly (1000) includes: A cylindrical cover (1200) having a first closed end (1220) and a second open end (1240), and a side portion located between the first closed end (1220) and the second open end (1240), wherein the cover (1200) is fitted onto the flange (2200) through the second open end (1240); and Multiple connectors (1400), each connector (1400) having a first connecting portion (1420) and a second connecting portion (1440), the first connecting portion (1420) and the second connecting portion (1440) intersecting and connecting to form an L-shape, the first connecting portion (1420) being used to connect to the side of the cover (1200), and the second connecting portion (1440) being used to connect to the explosion-proof membrane assembly (2000) via one of the multiple fixing bolts (2400), thereby allowing the cover (1200) to be connected to the explosion-proof membrane assembly (2000) via the multiple connectors (1400); The cover (1200) also includes an opening (1260) on the side. The orientation of the opening (1260) can be adjusted by adjusting the connection position of the cover (1200) relative to the plurality of connectors (1400) along the circumferential direction of the flange (2200).

2. The protective cover assembly for explosion-proof membrane components according to claim 1, characterized in that, The width of the opening (1260) is 60° of the central angle of the cylinder.

3. The protective cover assembly for explosion-proof membrane components according to claim 2, characterized in that, The opening (1260) is connected to the second open end (1240).

4. The protective cover assembly for explosion-proof membrane components according to claim 3, characterized in that, The first closed end (1220) has a rounded corner, and the opening (1260) is connected to the rounded corner.

5. The protective cover assembly for an explosion-proof membrane assembly according to any one of claims 1 to 4, characterized in that, The cover (1200) is made of aluminum or a polymer composite material.

6. The protective cover assembly for an explosion-proof membrane assembly according to any one of claims 1 to 4, characterized in that, The first connecting part (1420) is connected to the side of the cover (1200) by rivets.

7. The protective cover assembly for an explosion-proof membrane assembly according to any one of claims 1 to 4, characterized in that, The second connecting part (1440) has a hole through which the connecting part (1400) is fixed to the explosion-proof membrane assembly (2000).

8. The protective cover assembly for an explosion-proof membrane assembly according to any one of claims 1 to 4, characterized in that, The number of the plurality of connectors (1400) is four.

9. A tank-type circuit breaker, characterized in that, It includes an explosion-proof membrane assembly and a protective cover assembly (1000) of the explosion-proof membrane assembly according to any one of claims 1 to 8.

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