Excitation module and circuit protection device
By modularly encapsulating the excitation source, the problem that the excitation source cannot be produced and transported separately is solved, and stable protection and safe transportation of the excitation source are achieved.
Patent Information
- Application Number
- CN202510900861.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-08-29
AI Technical Summary
The incentive source cannot be produced and transported separately, resulting in the inability to be produced and transported as ordinary products.
By encapsulating the excitation source, a modular excitation module is formed, including a housing, a cover, an excitation source and a power device. The limit structure limits one end of the power device near the excitation source in the cavity, ensuring that the power device can close the excitation source in any state, and adopts a modular packaging design to improve use safety.
The stabilization and reliable protection of the excitation source is achieved, ensuring that the power unit can close the excitation source in any state, improving the safety of use and transportation convenience.
Smart Images
Figure CN120565360A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to an excitation module and a circuit protection device. Background Art
[0002] An energized fuse is a fast-acting protective device that uses an energizing source to push the insulator through the conductor, creating a physical break within a short period of time. Its advantage over traditional fuses lies in its active disconnection control and its ability to quickly trip even at low fault currents. However, the energizing source, a key component of an energized fuse, is difficult to manufacture and transport independently. Summary of the Invention
[0003] The purpose of this application is to provide an excitation module and a circuit protection device, which encapsulates the excitation source so that the excitation source can exist in a modular form and can be produced and transported as an ordinary product.
[0004] The embodiment of the present application is implemented as follows: According to a first aspect of an embodiment of the present application, an excitation module is provided, comprising a shell, a cover, an excitation source, and a power device. A first cavity is provided through the shell, the excitation source and the power device are provided in the first cavity, the cover is covered on the shell, and the cover and the power device are respectively located on opposite sides of the excitation source. The excitation source is used to drive the power device to move toward a side away from the cover according to an excitation signal. A limiting structure is provided on the shell and the power device, and the limiting structure is used to limit the end of the power device close to the excitation source within the first cavity. The excitation module encapsulates the excitation source so that the excitation source can exist in a modular form and can be produced and transported as an ordinary product.
[0005] As an implementable embodiment, the limiting structure includes a first limiting portion and a second limiting portion, the first limiting portion is located on the shell, and the second limiting portion is located on the power device, and the first limiting portion and the second limiting portion cooperate with each other to jointly limit the end of the power device close to the excitation source within the first cavity.
[0006] As an implementation method, the first limiting portion is a protrusion and the second limiting portion is a groove. When the end face of the protrusion close to the excitation source abuts against the groove wall of the groove close to the excitation source, the protrusion can prevent the power device from continuing to move toward the side away from the cover body.
[0007] As an implementation method, the protrusion and the groove are strip structures, and the extension direction of the strip structure is parallel to the movement direction of the power device.
[0008] As an implementation method, the cross-sectional shapes of the protrusion and the groove are semicircular, and the arc surface of the protrusion and the arc surface of the groove are in contact with each other.
[0009] As an embodiment, it also includes a reinforcement ring arranged in the shell, and the reinforcement ring is arranged on the side of the excitation source away from the power device. A first limiting surface is provided in the shell, and a second limiting surface is provided in the reinforcement ring. The first limiting surface and the second limiting surface are arranged opposite to each other to limit the excitation source to a preset position.
[0010] As an embodiment, the shell includes a first sub-shell and a second sub-shell that are interlocked, the excitation source is located in the first sub-shell, the power device is located in the second sub-shell, and a third limiting surface is provided on the side of the first sub-shell facing the second sub-shell, and the third limiting surface is used to abut against an end of the power device close to the excitation source to limit the power device to an initial position.
[0011] As an implementation method, the cover body is provided with a through hole, and the connection terminal of the excitation source passes through the through hole and is exposed outside the cover body.
[0012] As an implementation method, it further includes a fastener, the cover body is provided with a connecting hole, the shell is provided with a mounting hole, and the fastener is sequentially assembled in the connecting hole and the mounting hole to fix the cover body and the shell.
[0013] A second aspect of the present application provides a circuit protection device comprising a housing, a conductive member, and the aforementioned excitation module. The housing is provided with a second cavity, and the excitation module is removably mounted within the second cavity. The conductive member is disposed within the housing and is located along the motion path of the power device. When the excitation source drives the power device toward a side away from the cover according to an excitation signal, the power device is capable of disconnecting the conductive member. The excitation module encapsulates the excitation source so that the excitation source can be present in modular form, allowing it to be produced and transported as a common product.
[0014] The beneficial effects of the embodiments of the present application include: The excitation module includes a shell, a cover, an excitation source and a power device, a first cavity is provided through the shell, the excitation source and the power device are provided in the first cavity, the cover is covered on the shell, and the cover and the power device are respectively located on opposite sides of the excitation source, the excitation source is used to drive the power device to move toward the side away from the cover according to the excitation signal, and a limiting structure is provided on the shell and the power device, and the limiting structure is used to limit the end of the power device close to the excitation source in the first cavity. The excitation module provided in the present application adopts a modular packaging design. First, the shell plays a protective role on the excitation source. Secondly, the cover and the power device are respectively provided on opposite sides of the excitation source to close the shell along the through direction of the first cavity, so that the shell, the cover and the power device cooperate with each other to form a packaging structure together. Again, the limiting effect of the limiting structure on the shell and the power device prevents the power device from completely escaping from the first cavity under the driving action of the excitation source, so that the power device can seal the excitation source no matter what state it is, ensuring that the power device plays a stable and reliable protective role on the excitation source and improving safety in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 This is one of the structural diagrams of the excitation module in the initial state provided in an embodiment of the present application; Figure 2 This is a second structural diagram of the excitation module in the initial state provided by an embodiment of the present application; Figure 3 This is one of the structural diagrams of the excitation module provided in the embodiment of the present application under the extreme state; Figure 4 This is the second structural diagram of the excitation module provided in the embodiment of the present application under the extreme state; Figure 5 A schematic structural diagram of the second sub-housing provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of the power device provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of the circuit protection device provided in an embodiment of the present application in a connected state; Figure 8 This is a schematic structural diagram of the circuit protection device provided in an embodiment of the present application in the disconnected state.
[0017] Icon: 100-excitation module; 10-housing; 101-first subhousing; 1011-third limiting surface; 102-second subhousing; 11-first limiting portion; 12-first limiting surface; 20-cover; 21-through hole; 30-excitation source; 31-connection terminal; 40-power device; 41-second limiting portion; 50-reinforcement ring; 51-second limiting surface; 60-fastener; 200-circuit protection device; 210-housing; 220-conductive part. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0019] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of the application is usually placed when in use. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. Terms such as "first", "second", and "third" are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.
[0020] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections, indirect connections through an intermediate medium, or connections within two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0021] Please refer to Figures 1 to 8The embodiment of the present application provides an excitation module 100, comprising a housing 10, a cover 20, an excitation source 30, and a power device 40. A first cavity is provided through the housing 10, and the excitation source 30 and the power device 40 are provided in the first cavity. The cover 20 covers the housing 10, and the cover 20 and the power device 40 are respectively located on opposite sides of the excitation source 30. The excitation source 30 is used to drive the power device 40 to move toward a side away from the cover 20 according to an excitation signal. A limiting structure is provided on the housing 10 and the power device 40, and the limiting structure is used to limit the end of the power device 40 close to the excitation source 30 within the first cavity. The excitation module 100 encapsulates the excitation source 30 so that the excitation source 30 can exist in a modular form and can be produced and transported as a common product.
[0022] It should be noted that the excitation module 100 includes a shell 10, a cover 20, an excitation source 30 and a power device 40. The shell 10 is a hollow cylindrical structure, and a first cavity (the cross-section can be circular, rectangular, elliptical, etc.) is provided through the shell 10. The material of the shell 10 can be insulating plastic; the excitation source 30 (such as an ignition device) and the power device 40 (such as a piston) are coaxially installed in the first cavity to form a driving unit; the cover 20 can be fixed to one end of the shell 10 by a fastener 60 (such as a bolt), and the cover 20 and the power device 40 are respectively located on opposite sides of the excitation source 30 to form a packaging structure.
[0023] When the excitation source 30 receives an excitation signal (such as a pulse current or voltage signal), it releases high-pressure gas to drive the power device 40 to move in a direction away from the cover body 20. The movement stroke of the power device 40 is limited by the limiting structure to ensure that the end of the power device 40 close to the excitation source 30 always remains in the first cavity, preventing the power device 40 from completely escaping from the first cavity, exposing the excitation source 30 and affecting safety of use.
[0024] Compared with the prior art, the excitation module 100 provided in the present application adopts a modular packaging design. First, the excitation source 30 is protected by the shell 10. Secondly, the cover body 20 and the power device 40 are respectively arranged on opposite sides of the excitation source 30 to close the shell 10 along the through-direction of the first cavity, so that the shell 10, the cover body 20 and the power device 40 cooperate with each other to form a packaging structure together. Again, the limiting effect of the limiting structure on the shell 10 and the power device 40 prevents the power device 40 from completely escaping from the first cavity under the driving action of the excitation source 30, so that the power device 40 can seal the excitation source 30 regardless of the state, ensuring that the power device 40 plays a stable and reliable protective role on the excitation source 30, thereby improving the safety of use.
[0025] As an implementable method, Figure 2 、 Figures 4 to 6 As shown, the limiting structure includes a first limiting portion 11 and a second limiting portion 41. The first limiting portion 11 is located on the shell 10, and the second limiting portion 41 is located on the power device 40. The first limiting portion 11 and the second limiting portion 41 cooperate with each other to jointly limit one end of the power device 40 close to the excitation source 30 in the first cavity.
[0026] It should be noted that the limiting structure of the excitation module 100 adopts a two-component matching mechanism, and the stable constraint of the power device 40 is achieved through the precise cooperation of the first limiting portion 11 and the second limiting portion 41. Specifically, the first limiting portion 11 is provided on the inner wall of the first cavity of the shell 10, and the first limiting portion 11 can be made by integral molding with the shell 10; the second limiting portion 41 is provided on the power device 40, and the second limiting portion 41 can be located at one end of the power device 40 close to the excitation source 30; when the excitation source 30 drives the power device 40 to move, the power device 40 will move from the initial position to the extreme position along its movement path. As long as the second limiting portion 41 and the first limiting portion 11 remain in abutment with each other when the power device 40 moves to the extreme position, it can be ensured that the end of the power device 40 close to the excitation source 30 is firmly confined in the first cavity, thereby preventing the power device 40 from completely escaping from the first cavity.
[0027] As an implementable method, Figure 2 、 Figures 4 to 6 As shown, the first limiting portion 11 is a protrusion and the second limiting portion 41 is a groove. When the end face of the protrusion close to the excitation source 30 abuts against the groove wall close to the excitation source 30, the protrusion can prevent the power device 40 from continuing to move toward the side away from the cover body 20.
[0028] It should be noted that the limiting structure of the excitation module 100 adopts a protrusion and groove matching mechanism. Specifically, the first limiting portion 11 is a protrusion, which can be a strip-shaped boss on the inner wall of the shell 10, and the end face of the protrusion close to the excitation source 30 can be a plane or an inclined surface; the second limiting portion 41 is a groove, which can be opened at one end of the power device 40 close to the excitation source 30, and the groove can be a strip-shaped groove on the outer wall of the power device 40, and the groove depth should match the height of the protrusion; when the excitation source 30 drives the power device 40 to move in a direction away from the cover body 20, the groove can slide along the protrusion, and when the groove wall close to the excitation source 30 contacts the end face of the protrusion close to the excitation source 30, the protrusion can prevent the power device 40 from continuing to move, thereby limiting the movement range of the power device 40 to within the first cavity, preventing the power device 40 from falling out due to excessive movement.
[0029] As an implementable method, Figure 2 、 Figures 4 to 6As shown, the protrusions and grooves are strip-shaped structures, and the extending direction of the strip-shaped structures is parallel to the moving direction of the power device 40 .
[0030] It should be noted that the protrusion and the groove are strip-shaped structures, and the extension direction of the strip structure is parallel to the movement direction of the power device 40, so as to guide and constrain the power device 40 along its movement direction. For example, the protrusion can be set at the end of the housing 10 away from the excitation source 30. When the power device 40 moves along its movement direction, the protrusion and the groove cooperate with each other to prevent the power device 40 from shaking or tilting. When the power device 40 moves from the initial position to the extreme position, the groove wall close to the excitation source 30 contacts the end face of the protrusion close to the excitation source 30. Therefore, the protrusion can prevent the power device 40 from continuing to move. As a result, the movement range of the power device 40 can be limited to the first cavity, preventing the power device 40 from falling out due to excessive movement, thereby preventing the excitation source 30 from being exposed, and forming a closed protection for the excitation source 30.
[0031] As an implementable method, Figure 2 、 Figures 4 to 6 As shown, the cross-sectional shapes of the protrusion and the groove are semicircular, and the arc surface of the protrusion and the arc surface of the groove are in contact with each other.
[0032] It should be noted that the cross-sectional shape of the protrusion and the groove is semicircular. In other words, the protrusion is a semi-cylindrical boss and the groove is a semi-cylindrical groove. When the power device 40 moves, the semi-cylindrical surface of the groove slides along the semi-cylindrical surface of the protrusion to reduce the movement resistance of the power device 40 and ensure that the power device 40 will not be affected by the existence of the limiting structure, and its speed of movement from the initial position to the extreme position will not be affected.
[0033] As an implementable method, Figure 2 and Figure 4 As shown, the excitation module 100 also includes a reinforcement ring 50 arranged in the shell 10, and the reinforcement ring 50 is sleeved on the side of the excitation source 30 away from the power device 40. A first limiting surface 12 is provided in the shell 10, and a second limiting surface 51 is provided in the reinforcement ring 50. The first limiting surface 12 and the second limiting surface 51 are arranged relative to each other to limit the excitation source 30 to a preset position.
[0034] It should be noted that the excitation module 100 also includes a reinforcement ring 50 disposed within the housing 10. The reinforcement ring 50 may be an annular metal component. The reinforcement ring 50 is sleeved on the end of the excitation source 30 away from the power device 40. The side of the reinforcement ring 50 away from the power device 40 is also fixed and limited by the cover 20. By adding the reinforcement ring 50, the protective effect of the housing 10 on the excitation source 30 can be improved. On this basis, a first limiting surface 12 is provided within the housing 10, and a second limiting surface 51 is provided within the reinforcement ring 50. When the excitation source 30 is installed in the housing 10, the outer wall surface of the excitation source 30 can be clamped and fixed by the first limiting surface 12 and the second limiting surface 51 to reduce the installation error between the excitation source 30 and the power device 40.
[0035] As an implementable method, Figure 2 and Figure 4 As shown, the shell 10 includes a first sub-shell 101 and a second sub-shell 102 that are interlocked, the excitation source 30 is located in the first sub-shell 101, and the power device 40 is located in the second sub-shell 102. A third limiting surface 1011 is provided on the side of the first sub-shell 101 facing the second sub-shell 102. The third limiting surface 1011 is used to abut against one end of the power device 40 close to the excitation source 30 to limit the power device 40 to an initial position.
[0036] It should be noted that the housing 10 of the excitation module 100 adopts a split, snap-fit design. The first sub-housing 101 and the second sub-housing 102 cooperate to facilitate the separate installation of the excitation source 30 and the power unit 40. Specifically, the first sub-housing 101 and the second sub-housing 102 can be fastened together using bolts, snaps, or flange structures. A sealing rubber ring (e.g., silicone rubber) can be provided on the contact surfaces of the first sub-housing 101 and the second sub-housing 102 to ensure the protection level of the excitation module 100. The excitation source 30 is fixed within the first sub-housing 101, and the power unit 40 is installed within the second sub-housing 102, forming independent functional partitions.
[0037] On this basis, a third limiting surface 1011 is processed on the end face of the first sub-shell 101 facing the second sub-shell 102, which can be a plane or a step surface. The third limiting surface 1011 precisely corresponds to the end of the power device 40 close to the excitation source 30. When the power device 40 is in the initial position where it is not driven by the excitation source 30, the end face of the power device 40 close to the excitation source 30 abuts against the third limiting surface 1011 to form a mechanical stop; after the excitation source 30 is excited, the power device 40 moves toward the side away from the excitation source 30 under the action of the high-pressure gas generated by the excitation source 30, and when the power device 40 moves from its initial position to the extreme position, it is blocked and limited by the limiting structure to prevent it from falling out.
[0038] As an implementable method, Figures 2 to 4 As shown, a through hole 21 is provided on the cover body 20, and the terminal 31 of the excitation source 30 passes through the through hole 21 and is exposed outside the cover body 20. An insulating protective cover (such as silicone rubber or nylon material) can be provided in the through hole 21 to prevent the terminal 31 of the excitation source 30 from rubbing against the hole wall of the through hole 21 and causing damage. In addition, a waterproof joint or sealant can also be provided in the through hole 21 to ensure the protection level of the excitation module 100.
[0039] As an implementable method, Figures 2 to 6 As shown, the excitation module 100 also includes a fastener 60, a connecting hole is provided on the cover body 20, and a mounting hole is provided on the shell 10. The fastener 60 is assembled in the connecting hole and the mounting hole in sequence to fix the cover body 20 and the shell 10 in connection, so that after the excitation source 30 and the power device 40 are installed in place, the cover body 20 and the shell 10 can be stably fixedly connected by the fastener 60, further ensuring the protection level of the excitation module 100.
[0040] like Figure 7 and Figure 8 As shown, an embodiment of the present application further provides a circuit protection device 200, comprising a housing 210, a conductive member 220 (such as a copper busbar), and the aforementioned excitation module 100. A second cavity is provided within the housing 210, and the excitation module 100 is detachably mounted within the second cavity. The conductive member 220 is disposed within the housing 210 and is located on the motion path of the power device 40. When the excitation source 30 drives the power device 40 toward a side away from the cover 20 according to an excitation signal, the power device 40 can disconnect the conductive member 220 to cut off the fault current and achieve circuit protection. Since the structure and beneficial effects of the excitation module 100 have been described in detail in the aforementioned embodiments, they will not be repeated here.
[0041] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.
Claims
1. An incentive module, characterized in that: The invention comprises a shell (10), a cover (20), an excitation source (30) and a power device (40), wherein a first cavity is provided through the shell (10), the excitation source (30) and the power device (40) are provided in the first cavity, the cover (20) covers the shell (10), and the cover (20) and the power device (40) are respectively located on opposite sides of the excitation source (30), the excitation source (30) is used to drive the power device (40) to move toward a side away from the cover (20) according to an excitation signal, and a limiting structure is provided on the shell (10) and the power device (40), and the limiting structure is used to limit an end of the power device (40) close to the excitation source (30) in the first cavity.
2. The excitation module according to claim 1, characterized in that The limiting structure comprises a first limiting portion (11) and a second limiting portion (41), wherein the first limiting portion (11) is located on the housing (10), and the second limiting portion (41) is located on the power device (40), and the first limiting portion (11) and the second limiting portion (41) cooperate with each other to jointly limit an end of the power device (40) close to the excitation source (30) within the first cavity.
3. The excitation module according to claim 2, characterized in that The first limiting portion (11) is a protrusion, and the second limiting portion (41) is a groove. When the end surface of the protrusion close to the excitation source (30) abuts against the groove wall of the groove close to the excitation source (30), the protrusion can prevent the power device (40) from continuing to move toward the side away from the cover body (20).
4. The excitation module according to claim 3, characterized in that The protrusion and the groove are strip-shaped structures, and the extension direction of the strip-shaped structure is parallel to the movement direction of the power device (40).
5. The excitation module according to claim 3, characterized in that: The cross-sectional shapes of the protrusion and the groove are semicircular, and the arc surface of the protrusion and the arc surface of the groove are in contact with each other.
6. The excitation module according to claim 1, characterized in that: The invention also includes a reinforcement ring (50) arranged in the housing (10), the reinforcement ring (50) being sleeved on a side of the excitation source (30) away from the power device (40), a first limiting surface (12) being arranged in the housing (10), and a second limiting surface (51) being arranged in the reinforcement ring (50), the first limiting surface (12) and the second limiting surface (51) being arranged relative to each other to limit the excitation source (30) to a preset position.
7. The excitation module according to claim 1, characterized in that: The housing (10) comprises a first sub-housing (101) and a second sub-housing (102) that are interlocked, the excitation source (30) is located in the first sub-housing (101), and the power device (40) is located in the second sub-housing (102), and a third limiting surface (1011) is provided on a side of the first sub-housing (101) facing the second sub-housing (102), and the third limiting surface (1011) is used to abut against an end of the power device (40) close to the excitation source (30) to limit the power device (40) to an initial position.
8. The excitation module according to claim 1, characterized in that: A through hole (21) is provided on the cover body (20), and the connection terminal (31) of the excitation source (30) passes through the through hole (21) to be exposed outside the cover body (20).
9. The excitation module according to claim 1, characterized in that: It also includes a fastener (60), the cover (20) is provided with a connection hole, the shell (10) is provided with a mounting hole, and the fastener (60) is sequentially assembled in the connection hole and the mounting hole to fix the cover (20) and the shell (10) in connection.
10. A circuit protection device, characterized in that: The invention comprises a housing (210), a conductive member (220), and an excitation module (100) according to any one of claims 1 to 9, wherein a second cavity is provided in the housing (210), the excitation module (100) is detachably mounted in the second cavity, the conductive member (220) is passed through the housing (210), and the conductive member (220) is located on the movement path of the power device (40), and when the excitation source (30) drives the power device (40) to move toward a side away from the cover body (20) according to an excitation signal, the power device (40) can disconnect the conductive member (220).