Combined single-power-source intelligent fuse with replaceable through-flow element

Abstract

The utility model relates to the technical field of fuses, in particular to a combined single-power-source intelligent fuse with a replaceable through-flow element, which comprises at least two connecting terminals, a conductive component used for realizing electrical connection between the connecting terminals and capable of being cut off, and a cutting mechanism used for cutting off the conductive component. The multiple conductive assemblies are sequentially arranged in the action direction of the cut-off part of the cut-off mechanism, the connecting terminals are electrically connected with the corresponding connecting terminals through the multiple conductive assemblies, and the cut-off part of the cut-off mechanism is aligned with the conductive assemblies and cuts off the conductive assemblies during action. And a monitoring part of the monitoring mechanism is connected with the connecting terminal. According to the utility model, the plurality of conductive assemblies are connected with the connecting terminals, so that the through-current capability of the fuse is improved, the temperature rise of the fuse during working is reduced, the fuse is suitable for being used in a high-power working state, and meanwhile, the cutting-off mechanism is adopted to cut off all the conductive assemblies in time when a circuit is abnormal, so that the breaking real-time performance is high, and the safety coefficient is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a single-power source intelligent fuse with replaceable combined current-carrying elements. Background Art

[0002] A fuse is an electrical safety device that is mainly used to protect circuits from overcurrent (such as overload or short circuit). It can respond to overcurrent events in a very short time and immediately disconnect the circuit. This feature makes it very suitable for quickly protecting circuits from short circuits or severe overloads. Under high-power working conditions, there are high requirements for the current carrying capacity of the fuse, such as increasing the thickness or width of the narrow copper bar, or using multiple copper bars to reduce the temperature rise to improve the current carrying capacity of the fuse. However, the use of the above technical solutions will result in low real-time disconnection of the fuse, and its heat dissipation area is still small, and the space utilization rate is low, and the cost is high. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing fuse has a complex structure, a high temperature rise, cannot be used in high-power working conditions, has poor versatility, low space utilization, and high cost.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a current-passing element replaceable combined single-power source intelligent fuse, comprising at least two connecting terminals, a conductive component for realizing electrical connection between the connecting terminals and capable of being cut off, and a cutting mechanism for cutting off the conductive component, wherein the conductive components are provided in plurality and are arranged in sequence along the direction of movement of the cutting part of the cutting mechanism, the connecting terminals are electrically connected to the corresponding connecting terminals through a plurality of conductive components, the cutting part of the cutting mechanism is aligned with the conductive component and cuts off the conductive component when it is moved, and the monitoring part of the monitoring mechanism is connected to the connecting terminals.

[0005] When the utility model is working, the connection terminals are connected through a plurality of conductive components, so the current carrying capacity of the fuse is improved and the temperature rise during operation is reduced. The utility model is suitable for use in a high-power working state. At the same time, a cutting mechanism is used to cut off all conductive components in time when the circuit is abnormal. The real-time breaking performance is high, the circuit safety can be effectively protected, the safety factor is high, and the versatility is good.

[0006] Preferably, the cutting mechanism comprises a cutting drive device and a plurality of strikers, wherein the plurality of strikers are respectively aligned with their corresponding conductive components and are transmission-connected to the drive device, and when in action, the plurality of strikers cut off the conductive components under the drive of the drive device.

[0007] Preferably, several strikers are arranged in sequence along the arrangement direction of the conductive components, the strikers include a cutting part and a transmission part, the cutting parts of the several strikers are respectively aligned with their corresponding conductive components, and the transmission parts of the several strikers are sequentially transmission-connected and transmission-connected to the output part of the cutting drive device.

[0008] Preferably, the cutting mechanism further comprises a guide sleeve, a plurality of strikers are movably and position-limitedly mounted inside the guide sleeve, a plurality of conductive components are position-limitedly connected to the guide sleeve, and the cutting drive device is fixedly mounted on the guide sleeve.

[0009] Preferably, the connection terminal is provided with a plurality of mounting grooves for connecting conductive components, and the plurality of conductive components are respectively positionally mounted in the corresponding mounting grooves.

[0010] Preferably, it further comprises a spare fuse for commutating current and disconnecting the power circuit after the conductive component is cut off, and the connecting terminal is electrically connected to the corresponding connecting terminal through the spare fuse.

[0011] Preferably, a protective shell is further included, wherein the connecting terminal, the conductive component and the cutting mechanism are all arranged in the protective shell, and the wiring part of the connecting terminal is exposed to the outside from the outer surface of the protective shell.

[0012] The beneficial technical effects of the utility model include:

[0013] The utility model has a simple structure and a reasonable design. The connection terminals are connected by a plurality of conductive components, so the current carrying capacity of the fuse is improved and the temperature rise during operation is reduced. The utility model is suitable for use in a high-power working state. At the same time, a cutting mechanism is adopted to cut off all conductive components in time when the circuit is abnormal. The real-time breaking performance is high, the circuit safety can be effectively protected, the safety factor is high, and the versatility is good.

[0014] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Attached Figure 1 It is a structural schematic diagram of a single-power source intelligent fuse with replaceable flow-through elements;

[0017] Attached Figure 2 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0018] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0019] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0020] Please refer to the attached Figure 1 The present embodiment discloses a single-power source intelligent fuse with a replaceable current-carrying element, comprising at least two connecting terminals 1, a conductive component 2 that is used to realize electrical connection between the connecting terminals 1 and can be cut off, and a cutting mechanism 3 for cutting off the conductive component 2, which is described in detail below in conjunction with the accompanying drawings.

[0021] Please refer to the attached Figure 1 and attached Figure 2 In this embodiment, a plurality of conductive components 2 are provided and are arranged in sequence along the direction in which the cutting portion of the cutting mechanism 3 moves. The connecting terminal 1 is electrically connected to the corresponding connecting terminal 1 through a plurality of conductive components 2. The cutting portion of the cutting mechanism 3 is aligned with the conductive component 2 and cuts off the conductive component 2 when it moves. The monitoring portion of the monitoring mechanism 4 is connected to the connecting terminal 1. In a specific implementation, the monitoring mechanism 4 can be set to any monitoring device such as a Hall sensor.

[0022] In this embodiment, the connection terminal 1 is connected by a plurality of conductive components 2, so that the current carrying capacity of the fuse is improved and the temperature rise during operation is reduced, which is suitable for use in high-power working conditions. At the same time, a cutting mechanism 3 is used to cut off all conductive components 2 in time when the circuit is abnormal. The disconnection is highly real-time, can effectively protect the circuit safety, has a high safety factor, and has good versatility.

[0023] In a specific implementation, the cutting mechanism 3 includes a cutting drive device 31 and a plurality of strikers 32. The strikers 32 are respectively aligned with their corresponding conductive components 2 and are transmission-connected to the drive device. When in action, the strikers 32 cut off the conductive components 2 under the drive of the drive device.

[0024] Preferably, several strikers 32 are arranged in sequence along the arrangement direction of the conductive component 2, and the striker 32 includes a cutting portion 321 and a transmission portion 322. The cutting portions 321 of the several strikers 32 are respectively aligned with their corresponding conductive components 2, and the transmission portions 322 of the several strikers 32 are sequentially transmission-connected and transmission-connected to the output portion of the cutting drive device 31.

[0025] In specific implementation, the cut-off driving device 31 can be configured as any existing small-sized power generating device or a corresponding working element.

[0026] As a further improvement of this embodiment, the cutting mechanism 3 also includes a guide sleeve 33, a plurality of strikers 32 are movably and positionally mounted inside the guide sleeve 33, a plurality of conductive components 2 are positionally connected to the guide sleeve 33, and the cutting drive device 31 is fixedly mounted on the guide sleeve 33.

[0027] In a specific implementation, a plurality of mounting grooves 11 for connecting the conductive components 2 are provided on the connecting terminal 1, and a plurality of conductive components 2 are respectively limitedly installed in their corresponding mounting grooves 11. Preferably, the conductive efficiency between the connecting terminal 1 and the conductive component 2 can be improved by welding, and a movable connection can also be adopted to facilitate the replacement of the cut conductive component 2.

[0028] As a further improvement of this embodiment, a spare fuse 5 is further included for commutating current and disconnecting the power circuit after the conductive component 2 is cut off, and the connection terminal 1 is electrically connected to the corresponding connection terminal 1 through the spare fuse 5.

[0029] Preferably, a protective shell 6 is further included, in which the connecting terminal 1 , the conductive component 2 and the cutting mechanism 3 are all arranged, and the wiring part of the connecting terminal 1 is exposed to the outside from the outer surface of the protective shell 6 .

[0030] The beneficial technical effects of this embodiment include: the utility model has a simple structure and a reasonable design. The connection terminals are connected by a plurality of conductive components, which improves the current-carrying capacity of the fuse and reduces its temperature rise during operation. It is suitable for use in high-power working conditions. At the same time, a cutting mechanism is used to cut off all conductive components in time when the circuit is abnormal. The disconnection is real-time and can effectively protect the circuit safety. It has a high safety factor and good versatility.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A single power source intelligent fuse with replaceable flow element, characterized in that: The invention comprises at least two connecting terminals (1), a conductive component (2) which is used to realize electrical connection between the connecting terminals (1) and can be cut off, a cutting mechanism (3) for cutting off the conductive component (2), and a monitoring mechanism (4) for monitoring the circuit, wherein the conductive components (2) are provided with a plurality of conductive components and are arranged in sequence along the direction in which the cutting part of the cutting mechanism (3) moves, the connecting terminal (1) is electrically connected to the corresponding connecting terminal (1) through the plurality of conductive components (2), the cutting part of the cutting mechanism (3) is aligned with the conductive component (2) and cuts off the conductive component (2) when moving, and the monitoring part of the monitoring mechanism (4) is connected to the connecting terminal (1).

2. According to claim 1, a single-power source intelligent fuse with replaceable flow element combination, characterized in that: The cutting mechanism (3) comprises a cutting drive device (31) and a plurality of strikers (32). The plurality of strikers (32) are respectively aligned with the corresponding conductive components (2) and are transmission-connected to the drive device. When the plurality of strikers (32) are in action, they are driven by the drive device to cut off the conductive components (2).

3. According to claim 2, a single-power source intelligent fuse with replaceable flow elements is characterized in that: A plurality of strikers (32) are sequentially arranged along the arrangement direction of the conductive components (2), the strikers (32) comprising a cutting portion (321) and a transmission portion (322), the cutting portions (321) of the plurality of strikers (32) being respectively aligned with the corresponding conductive components (2), and the transmission portions (322) of the plurality of strikers (32) being sequentially transmission-connected and transmission-connected with the output portion of the cutting drive device (31).

4. The single-power-source intelligent fuse with replaceable flow-through elements according to claim 2, characterized in that: The cutting mechanism (3) further comprises a guide sleeve (33), a plurality of strikers (32) are movably mounted in a limited position inside the guide sleeve (33), a plurality of conductive components (2) are connected in a limited position to the guide sleeve (33), and the cutting drive device (31) is fixedly mounted on the guide sleeve (33).

5. The single-power-source intelligent fuse with replaceable flow-through elements according to claim 1, characterized in that: The connection terminal (1) is provided with a plurality of mounting grooves (11) for connecting the conductive components (2), and the plurality of conductive components (2) are respectively installed in respective corresponding mounting grooves (11) in a limited manner.

6. The single-power-source intelligent fuse with replaceable flow-through elements according to claim 1, characterized in that: It also comprises a spare fuse (5) for performing current conversion and disconnecting the energized circuit after the conductive component (2) is cut off, and the connecting terminal (1) is electrically connected to the corresponding connecting terminal (1) through the spare fuse (5).

7. The single-power-source intelligent fuse with replaceable flow-through elements according to claim 1, characterized in that: It also comprises a protective shell (6), wherein the connecting terminal (1), the conductive component (2) and the cutting mechanism (3) are all arranged in the protective shell (6), and the wiring part of the connecting terminal (1) is exposed to the outside through the outer surface of the protective shell (6).

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