Intelligent rapid breaker and production process

Abstract

The invention relates to the technical field of switches, and discloses an intelligent quick breaker and a production process, the intelligent quick breaker comprises a shell, a busbar and a trigger device, the busbar is connected to the shell, an installation cavity is formed in the shell, the trigger device is arranged in the installation cavity, and the trigger device is connected with the busbar. The trigger device is used for impacting the busbar to be broken to form an open circuit when short circuit occurs or current is too large, a vent hole is formed in the side wall of the shell, the mounting cavity is communicated with the exterior of the shell through the vent hole, and a pipe fitting is arranged in the vent hole and can seal the vent hole. According to the intelligent quick breaker, air and moisture in the shell are pumped out, and the mounting cavity is closed to keep a vacuum state or a state full of inert gas, so that electric arcs are not easy to diffuse and burn in the mounting cavity, other circuits and equipment are not easy to damage, and the intelligent quick breaker has the effect of improving the safety when the intelligent quick breaker is used.

Description

Technical Field

[0001] The present application relates to the technical field of switches, and in particular to an intelligent fast switch and a production process. Background Art

[0002] Intelligent fast-acting circuit breakers are specialized safety devices that rapidly disconnect and connect circuits. They are widely used in aerospace, automotive safety systems, emergency circuit breakers for industrial equipment, and overload protection for energy storage systems. Their core principle is to utilize the instantaneous energy generated by the combustion of a pyrotechnic agent to drive mechanical action, achieving a millisecond-level circuit disconnect response, thereby protecting electrical systems and personnel.

[0003] In related technologies, when the intelligent fast breaker is disconnected, an initial arc is formed at the moment the contacts are disconnected. Since the intelligent fast breaker contains air and moisture, and the oxygen in the air is combustible and the water vapor is conductive, the initial arc is further diffused and enhanced. The generation of a strong arc will not only affect the performance of the switch, but may also cause damage to surrounding circuits and equipment, and even cause safety accidents. Therefore, there is room for improvement. Summary of the Invention

[0004] In order to improve the safety of the use of intelligent fast-acting circuit breakers, the present application provides an intelligent fast-acting circuit breaker and a production process.

[0005] In the first aspect, the present application provides an intelligent fast disconnect device adopting the following technical solutions: An intelligent fast disconnect device includes a housing, a busbar, and a trigger device. The busbar is connected to the housing, a mounting cavity is defined within the housing, and the trigger device is disposed within the mounting cavity. The trigger device is configured to cause the busbar to break and open the circuit in the event of a short circuit or excessive current. A vent is defined on a side wall of the housing, the vent communicating with the mounting cavity and the exterior of the housing. A pipe is disposed within the vent, and the pipe is configured to seal the vent.

[0006] By adopting the above technical solution, when manufacturing the intelligent fast-acting circuit breaker, after the trigger device and busbar are installed in the housing, the air and moisture in the installation cavity can be sucked out through the pipe fitting, creating a vacuum state within the installation cavity. The pipe fitting can then be sealed, thereby sealing the vent. This arrangement ensures that even if the intelligent fast-acting circuit breaker generates an arc during disconnection, the arc is unlikely to continue to spread and intensify in a vacuum environment, reducing the possibility of the arc damaging surrounding equipment and circuits and improving the safety of the intelligent fast-acting circuit breaker.

[0007] After vacuuming out the air in the mounting cavity, you can continue to pump inert gas through the pipe to fill the mounting cavity with inert gas that is less likely to ignite the arc. The pipe can then be sealed. Because inert gas has a high ionization energy and can displace any remaining air and moisture in the mounting cavity after vacuuming, the arc is less likely to spread and intensify in an environment filled with inert gas.

[0008] Optionally, the pipe fitting is a copper tube, and the copper tube includes an extension portion extending out of the shell and a mounting portion located in the vent hole.

[0009] By adopting the above technical solution, when the vent hole needs to be sealed, one only needs to use a tool to flatten the extension to seal the copper tube. This is a simple operation. Compared with ordinary pipe fittings, copper is more flexible, so only a slight force is required to flatten the copper tube, making it easier to seal the copper tube.

[0010] Optionally, the pipe is inserted into the vent hole.

[0011] By adopting the above technical solution, when the pipe fitting needs to be installed in the vent hole, it is only necessary to extend the pipe fitting into the vent hole, which is convenient for installation.

[0012] Optionally, a reserved groove is provided on the shell, the reserved groove is communicated with the vent hole, and the reserved groove is filled with a sealing material.

[0013] By adopting the above technical solution, after the pipe seals the vent hole, the sealing material can be filled in the reserved groove. The above sealing material can be filled in the gap between the vent hole and the pipe fitting, so that the gap between the vent hole and the pipe fitting is further sealed, thereby improving the sealing of the installation cavity and facilitating maintaining a vacuum state or a sealed state filled with inert gas in the installation cavity.

[0014] In the second aspect, the present application provides a production process using the following technical solutions: A production process for processing an intelligent fast-acting switch comprises the following steps: S1: Shell opening: a vent hole is formed on the side wall of the shell; S2: Install the pipe fittings: Install the pipe fittings in the vent holes; S3: Vacuum treatment: extract the air in the installation cavity through the pipe; S4: Sealing treatment: seal the pipe fittings.

[0015] By adopting this technical solution, vents are formed in the sidewalls of the housing to assist in positioning the pipes during installation, improving the efficiency and precision of pipe installation. Installing the pipes in the vents provides a channel for the extraction of air and moisture, and the vents can be sealed with sealing pipes, making them easier to close. Furthermore, the intelligent fast-acting circuit breaker produced through this processing method creates a vacuum environment within its installation cavity, effectively preventing further arc combustion, reducing the possibility of arc damage to equipment and circuits, and improving safety when using the intelligent fast-acting circuit breaker.

[0016] Optionally, step S1 further includes forming a reserved groove on the side wall of the shell.

[0017] By adopting the above technical solution, after the pipe is sealed, a seal can be installed in the reserved groove to seal the gap between the pipe and the vent. The reserved groove reserves a position for the installation of the seal, which is convenient for installing the seal.

[0018] Optionally, the sealing step further includes filling the reserved groove with sealing material.

[0019] By adopting the above technical solution, after the pipe is sealed, the reserved groove is filled with sealing material. The sealing material can seal the gap between the pipe and the vent, thereby improving the sealing performance of the installation cavity and preventing air and moisture from entering the installation cavity, which is conducive to maintaining a vacuum state and good sealing in the installation cavity. Moreover, when filling after the pipe is sealed, the sealing material enters the gap between the pipe and the vent to seal it, further improving the stability of the connection between the pipe and the housing.

[0020] Optionally, an inflation treatment step is added between step S3 and step S4, that is, after completing step S3, inert gas is injected into the installation cavity through the pipe.

[0021] By adopting the above technical solution, after the air and moisture in the installation cavity are extracted, the installation cavity is in a vacuum state. At this time, inert gas is continued to be filled into the installation cavity through the pipe. Compared with directly filling the installation cavity with inert gas, it is difficult for air to be mixed into the inert gas, so that the purity of the inert gas in the installation cavity is high, and the arc is not easy to burn.

[0022] Optionally, the sealing step includes flattening the pipe to seal the vent hole.

[0023] By adopting the above technical solution, when the pipe fitting needs to be sealed, it is only necessary to use a tool to flatten the pipe fitting, without installing other components on the pipe fitting to seal the pipe fitting, which is easy to operate.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By opening a vent hole on the housing and extracting the air and moisture in the installation cavity, and finally sealing the vent hole, the installation cavity is kept in a vacuum or filled with an inert gas environment, making it difficult for the arc to burn in the installation cavity, thereby improving the safety of the intelligent fast circuit breaker; 2. A copper tube is inserted into the vent hole to facilitate the extraction of air and moisture in the installation cavity and to facilitate the sealing of the installation cavity; 3. A reserved groove connected to the vent hole is opened on the shell, and the reserved groove is filled with sealing material to further seal the gap between the pipe and the vent hole, thereby improving the sealing of the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the overall structural diagram of Example 1 of the present application.

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of Example 1 of the present application.

[0027] Figure 3 This is a flowchart of Example 1 and Example 2 of the present application.

[0028] Figure 4 This is the overall structural diagram of Example 2 of the present application.

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of Example 2 of the present application.

[0030] Description of reference numerals: 1. Housing; 2. Busbar; 3. Trigger device; 4. Installation cavity; 5. Arc extinguishing block; 6. Vent hole; 7. Reserved groove; 71. Sealing material; 8. Pipe fitting; 81. Copper tube; 811. Extension part; 812. Installation part; 9. Snap cover. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiments of the present application disclose an intelligent fast disconnect device and a production process.

[0033] Example 1 Reference Figure 1 and Figure 2 An intelligent fast-acting breaker includes a housing 1, a busbar 2, and a trigger device 3, wherein the busbar 2 is connected to the housing 1, and a mounting cavity 4 for mounting components is provided in the housing 1, and the trigger device 3 is installed in the mounting cavity 4. The trigger device 3 is used to impact the busbar 2 to form a circuit breaker when a short circuit or excessive current occurs, thereby disconnecting the circuit and protecting the electrical system.

[0034] Reference Figure 2An arc extinguishing block 5 is also provided in the installation cavity 4. The busbar 2 is arranged between the arc extinguishing block 5 and the trigger device 3. When a short circuit occurs or the current is large, the trigger device 3 will impact the busbar 2 in the direction of the arc extinguishing block 5, causing the busbar 2 to break and form a short circuit. The arc extinguishing block 5 can cool the arc generated when the busbar 2 breaks, so that the arc is extinguished quickly.

[0035] Reference Figure 2 A vent 6 is provided on the side wall of the housing 1. In this embodiment, the vent 6 is located on the side wall of the housing 1 on the side of the busbar 2 away from the trigger device 3. Alternatively, the vent 6 may be located elsewhere in the housing 1 based on customer needs. The vent 6 connects the mounting cavity 4 with the exterior of the housing 1. A pipe 8 is provided in the vent 6 to extract air and moisture from the housing 1. The pipe 8 also seals the vent 6. In this embodiment, the pipe 8 is preferably inserted into the vent 6 for ease of installation. Alternatively, other connection methods may be selected based on customer needs. Any connection method that secures the pipe 8 in the vent 6 and seals the vent 6 is acceptable.

[0036] Reference Figure 2 In this embodiment, the aforementioned pipe fitting 8 is preferably a copper tube 81. Copper tube 81 is highly flexible and includes an extension portion 811 extending from the housing 1 and a mounting portion 812 positioned within the vent 6. When sealing the vent 6 is necessary, the extension portion 811 can be simply flattened using a tool to facilitate sealing. In other cases, a non-deformable pipe fitting 8, such as a plastic tube or iron pipe, can also be used. When sealing is required, the pipe opening can be sealed with a plug or the like.

[0037] Reference Figure 3 A production process for processing an intelligent fast-acting switch includes the following steps: S1: Opening of the shell 1: forming a vent hole 6 on the side wall of the shell 1; S2: Install the pipe fitting 8: Install the mounting portion 812 of the copper tube 81 in the vent hole 6; S3: Vacuuming: A vacuum pump is used to pump out air and moisture from the installation cavity 4 by connecting the vacuum pump's suction port to the copper tube 81 ; S5: Sealing process: Flatten the copper tube 81 to seal the vent hole 6.

[0038] By processing the intelligent fast disconnect device through the above steps, after forming the vent hole 6 on the side wall of the shell 1, the copper tube 81 is installed in the vent hole 6 so that the air and moisture in the installation cavity 4 can be extracted through the copper tube 81. This arrangement improves the simplicity of vacuuming and sealing operations.

[0039] The implementation principle of an intelligent fast circuit breaker and production process in an embodiment of the present application is as follows: after the trigger device 3, busbar 2 and arc extinguishing block 5 are installed in the housing 1, air and moisture are extracted from the installation cavity 4, and then the copper tube 81 is flattened to close the vent 6, so that a vacuum environment is maintained in the installation cavity 4, thereby reducing the possibility of arc burning in the installation cavity 4 and improving the safety of the intelligent fast circuit breaker when in use.

[0040] Example 2 Reference Figure 4 and Figure 5 This embodiment differs from Embodiment 1 in that a reserved groove 7 is provided on the side wall of the housing 1, communicating with the vent 6. The reserved groove 7 is filled with a sealing material 71. The sealing material 71 can be filled in the gap between the copper tube 81 and the vent 6, thereby ensuring a good seal between the mounting cavity 4 and enhancing the connection strength between the copper tube 81 and the housing 1. After the reserved groove 7 is filled with the sealing material 71, the snap cover 9 is secured to the reserved groove 7. The sealing material 71 in this embodiment is preferably epoxy resin. Other sealing materials, such as silicone rubber sealant or polyurethane potting compound, can also be selected based on customer needs. Any sealing material that can provide a sealing effect is acceptable.

[0041] Reference Figure 3 and Figure 5 A production process for processing an intelligent fast-acting switch includes the following steps: S1: Opening of the shell 1: forming a vent hole 6 and a reserved groove 7 on the side wall of the shell 1; S2: Install the pipe fitting 8: Install the mounting portion 812 of the copper tube 81 in the vent hole 6; S3: Vacuuming: A vacuum pump is used to pump out air and moisture from the installation cavity 4 by connecting the vacuum pump's suction port to the copper tube 81 ; S4: Inflating: Inert gas is injected into the installation cavity 4 through the copper tube 81; S5: Sealing process: Flatten the copper tube 81 to seal the vent hole 6 , and fill the reserved groove 7 with sealing material 71 .

[0042] The implementation principle of an intelligent fast breaker and production process in an embodiment of the present application is as follows: after the air and moisture in the installation cavity 4 are extracted through the copper tube 81, inert gas is continued to be filled into the installation through the copper tube 81, and inert gas is filled again after vacuuming to further expel the remaining air and moisture in the installation cavity 4, and the purity of the inert gas in the installation cavity 4 can be guaranteed.

[0043] Finally, the copper tube 81 is flattened to seal the vent hole 6, and the reserved groove 7 is filled with sealing material 71. After the reserved groove 7 is created, the sealing material 71 is filled. The reserved groove 7 can limit the sealing material 71, making it less likely to splash during the filling operation, thereby improving the ease and quality of filling. This arrangement ensures that the installation cavity 4 is well sealed and the connection between the copper tube 81 and the housing 1 is highly stable.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An intelligent fast disconnect device, comprising a housing (1), a busbar (2) and a trigger device (3), wherein the busbar (2) is connected to the housing (1), a mounting cavity (4) is provided in the housing (1), and the trigger device (3) is arranged in the mounting cavity (4), and the trigger device (3) is used to impact the busbar (2) to break and form a circuit breaker when a short circuit or excessive current occurs, and is characterized in that: A vent hole (6) is provided on the side wall of the shell (1), the vent hole (6) communicating with the installation cavity (4) and the outside of the shell (1), a pipe (8) is provided in the vent hole (6), and the pipe (8) is capable of sealing the vent hole (6).

2. The intelligent fast disconnect device according to claim 1, characterized in that: The pipe fitting (8) is a copper tube (81), and the copper tube (81) comprises an extension portion (811) extending out of the shell (1) and a mounting portion (812) located in the vent hole (6).

3. The intelligent fast disconnect device according to claim 1, characterized in that: The pipe (8) is inserted into the vent hole (6).

4. The intelligent fast disconnect device according to claim 1, characterized in that: A reserved groove (7) is provided on the housing (1), the reserved groove (7) is communicated with the vent hole (6), and the reserved groove (7) is filled with a sealing material (71).

5. A production process for manufacturing the intelligent fast disconnect device according to claim 1, characterized in that: The following steps are involved: S1: Shell (1) opening: a vent hole (6) is formed on the side wall of the shell (1); S2: Installing the pipe fitting (8): Installing the pipe fitting (8) in the vent hole (6); S3: Vacuuming: extracting the air in the installation cavity (4) through the pipe (8); S4: Sealing process: sealing the pipe (8).

6. A production process according to claim 5, characterized in that: The step S1 further comprises forming a reserved groove (7) on the side wall of the housing (1).

7. A production process according to claim 6, characterized in that: The sealing step further comprises filling the reserved groove (7) with a sealing material (71).

8. A production process according to claim 5, characterized in that: An inflation step is added between step S3 and step S4, that is, after completing step S3, inert gas is injected into the installation cavity (4) through the pipe (8).

9. A production process according to claim 5, characterized in that: The sealing step includes flattening the pipe (8) to seal the vent hole (6).

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