Non-reverse rapid closing switch

Abstract

The utility model relates to a non-reverse fast closing switch of an electrical switch. The device comprises a static feeler lever, a movable feeler lever, a magnetic piece, a push piece, a lock groove, a lock piece and an elastic piece I, wherein the magnetic piece can be used for establishing a magnetic field driving force for switching on the switch; the push member is in a magnetic field range of the magnetic member and can cooperate with the magnetic member to drive the switch to close. The locking groove is formed in the side wall of the movable feeler lever; the locking piece is arranged on the side of the movable feeler lever, the movable feeler lever is locked when the locking piece is inserted into the locking groove, and the movable feeler lever is unlocked when the locking piece retreats from the locking groove. The first elastic piece provides driving force for closing of the switch. And after the magnetic piece and the push piece are attracted, the static contact rod and the movable contact rod are stably switched on, so that the rebounding phenomenon of the contact is avoided, and the switching-on speed and the switching-on effect of the switch are guaranteed. After the moving feeler lever is unlocked, the moving feeler lever can perform quick closing action under the action of magnetic field force between the magnetic piece and the push piece and the elastic force of the first elastic piece, so that quick closing of the switch is realized.

Description

Technical Field

[0001] This utility model relates to electrical switches, and more particularly to a fast-closing switch without reverse polarity. Background Technology

[0002] Different application scenarios in the electrical field have different requirements for the closing of switches.

[0003] For example, during a discharge test of a large-capacity capacitor, the inrush current is too large at the moment the switch is closed, which can cause the switch contacts to rebound, resulting in the contacts melting.

[0004] For example, if the no-load operating capacity of the busbar load side is large, the inrush current may be too large when the switch on the busbar is closed, which may cause the switch contacts to rebound and burn.

[0005] Thus, after the contact closes following the rebound, the melting of the contacts can cause the stationary and moving contacts to fuse together, rendering the switch unusable and unable to be reopened. Alternatively, the melted contacts may adhere to the vacuum bulb, also rendering the switch unusable.

[0006] Therefore, the industry urgently needs a switch that can quickly close the circuit and avoid voltage bounce. Utility Model Content

[0007] To address the problem mentioned in the background art where the inrush current on the line is extremely large when the switch is closed, causing the switch to bounce and melt, thus rendering the switch unusable, this utility model provides the following technical solution:

[0008] A reverse-biased fast-closing switch includes a stationary contact rod and a moving contact rod, and further includes a magnetic component, a pusher, a locking groove, a locking element, and an elastic element. The magnetic component generates a magnetic driving force for closing the switch; the pusher is within the magnetic field range of the magnetic component and cooperates with the magnetic component to drive the switch to close; the locking groove is formed on the side wall of the moving contact rod; the locking element is located on the side of the moving contact rod, and when the locking element is inserted into the locking groove, it locks the moving contact rod, and when the locking element is removed from the locking groove, it unlocks the moving contact rod; the elastic element provides the driving force for closing the switch.

[0009] Furthermore, the magnetic component is a permanent magnet.

[0010] Furthermore, the magnetic component is a coil, and an external power supply is connected to the coil to provide power. When the magnetic component is energized, it establishes a magnetic field.

[0011] Furthermore, the pusher is made of a material that can be attracted by the magnetic component.

[0012] Furthermore, the pusher is a permanent magnet, and the opposing surfaces of the pusher and the magnetic component are opposite magnetic poles.

[0013] Furthermore, the pusher is a coil, and an external power supply is connected to the coil. When the pusher is energized, it establishes a magnetic field that attracts the magnetic component.

[0014] Furthermore, one end of the elastic element is fixed in spatial position, while the other end abuts against the movable contact rod or the pusher; or one end of the elastic element is fixed in spatial position, while the other end abuts against the movable contact rod or the magnetic element.

[0015] Furthermore, the lock employs an eddy current drive mechanism, which includes a coil disk, an eddy current disk, and a second elastic element. The coil disk is externally connected to a power source, and when energized, it generates a magnetic field driving force to drive the lock. The eddy current disk is within the magnetic field range of the coil disk and can cooperate with the coil disk to drive the lock. The second elastic element provides the driving force for the lock to engage.

[0016] Furthermore, after the coil disk is energized, the induced magnetic field established by the eddy current disk repels or attracts the magnetic field of the coil disk.

[0017] Furthermore, one end of the second elastic element is fixed in spatial position, while the other end abuts against the locking element or the vortex disk; or one end of the second elastic element is fixed in spatial position, while the other end abuts against the locking element or the coil disk.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. After the moving contact rod is unlocked, it can perform a rapid closing action under the magnetic force between the magnetic component and the push component, as well as the elastic force of the elastic component, to achieve rapid closing of the switch.

[0020] Second, the moving contact rod has only one magnetic component or one push component installed on its body, which makes the overall weight of the moving contact rod lighter and helps the moving contact rod to close quickly, thus realizing the rapid closing of the switch.

[0021] Third, after the magnetic component and the push component are attracted, the stationary contact rod and the moving contact rod will be stably closed, avoiding the rebound of the contacts and ensuring the closing speed and effect of the switch.

[0022] Fourth, by setting up an elastic element, the closing speed of the moving contact rod is increased, and the magnetic and push elements work together to ensure stable closing of the stationary and moving contact rods, avoiding contact rebound and ensuring the closing speed and effect of the switch.

[0023] 5. The locking mechanism adopts an eddy current drive mechanism, which can quickly unlock the circuit through the magnetic force between the coil disk and the eddy current disk, thereby increasing the speed of the moving contact rod closing action and realizing the rapid closing of the switch. Attached Figure Description

[0024] Figure 1 The principle of this utility model Figure 1 ;

[0025] Figure 2 The principle of this utility model Figure 2 ;

[0026] Figure 3 The principle of this utility model Figure 3 ;

[0027] Figure 4 The principle of this utility model Figure 4 .

[0028] The following is a list of component names represented by the various reference numerals in the attached figures:

[0029] 1-Magnetic component, 2-Push component, 3-Locking component, 4-Coil disc, 5-Eddy current disc. Detailed Implementation

[0030] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0031] Example 1

[0032] This utility model provides a reverse-fast closing switch, which includes a stationary contact rod, a moving contact rod, a magnetic component 1, a push component 2, a locking groove, a locking component 3, and an elastic component 1.

[0033] Specifically:

[0034] The stationary and moving contacts are the main components for the closing and opening states of the switch. When the contacts of the two contacts are in contact, the switch is in the closed state; when the contacts of the two contacts are fully open, the switch is in the open state.

[0035] Magnetic component 1 is a magnet with a magnetic field, and its magnetic field is used to drive the moving contact rod to perform the closing action.

[0036] Pusher 2 is within the magnetic field range of magnet 1 and can cooperate with magnet 1 to drive moving contact rod to perform closing action. When moving contact rod is in the locked state, it is blocked by locking element 3, and magnet 1 and pusher 2 cannot drive moving contact rod to perform closing action; when moving contact rod is in the unlocked state, magnet 1 and pusher 2 are attracted by magnetic force, causing moving contact rod to perform closing action.

[0037] The locking groove is located on the side wall of the moving contact rod and is used to cooperate with the locking component 3 to limit the spatial position of the moving contact rod.

[0038] Locking element 3 is located on the side of the moving contact rod. When the moving contact rod completes the opening distance, the locking groove moves to align with locking element 3, allowing locking element 3 to be inserted into the locking groove. When locking element 3 is inserted into the locking groove, it locks the moving contact rod; when locking element 3 is removed from the locking groove, it unlocks the moving contact rod.

[0039] An elastic element is located at the end (non-contact end) of the moving contact rod. One end of the elastic element is fixed in position, while the other end abuts against the end of the moving contact rod. When the moving contact rod is in the locked state, the elastic element is compressed by force; when the moving contact rod is in the unlocked state, the force on the elastic element disappears, and the elastic element rebounds to drive the moving contact rod to perform the closing action.

[0040] Preferably:

[0041] Magnetic component 1 is a permanent magnet.

[0042] Alternatively, the magnetic component 1 can be a coil, and an external power supply can be connected to power the coil. When the magnetic component 1 is energized by its external power supply, the magnetic component 1 establishes a magnetic field to drive the moving contact rod to perform the closing action.

[0043] Preferably:

[0044] The pusher 2 is made of a material that can be attracted by the magnet 1, so that when the moving contact rod is in the unlocked state, the magnet 1 and the pusher 2 can be attracted by the magnetic field of the magnet 1.

[0045] Alternatively, pusher 2 can be a permanent magnet, with its opposing surfaces to magnetic component 1 having opposite magnetic poles. This allows magnetic component 1 and pusher 2 to attract each other under the combined magnetic fields of both when the moving contact is in the unlocked state. The combined magnetic field forces further enhance the speed and stability of the moving contact's closing action.

[0046] Alternatively, pusher 2 can be a coil, with an external power supply for it. When pusher 2 is energized by its external power supply, it establishes a magnetic field that attracts magnet 1. This allows magnet 1 and pusher 2 to engage under the combined magnetic fields of both when the moving contact is in the unlocked state. The combined magnetic field forces further enhance the speed and stability of the moving contact's closing action.

[0047] Example 2

[0048] Based on Embodiment 1, this embodiment provides further solutions for magnetic component 1, push component 2, and elastic component 1.

[0049] Both the magnetic component 1 and the pusher component 2 are positioned along the path of the moving contact rod's closing and opening actions. The magnetic component 1 is located on the closing side of the moving contact rod, while the pusher component 2 is located on the opening side. That is, compared to the magnetic component 1, the pusher component 2 is closer to the end of the moving contact rod. Furthermore, the magnetic component 1 does not contact the moving contact rod, while the pusher component 2 is in contact with it, so that when the pusher component 2 moves closer to the magnetic component 1, it drives the moving contact rod to perform a closing action.

[0050] Preferably, several elastic elements are added and distributed on the side of the pusher 2 on the same side as the end of the moving contact rod. One end of each elastic element is fixed in spatial position, while the other end abuts against the pusher 2. In Embodiment 1, the elastic elements at the end of the moving contact rod can be removed or retained.

[0051] Example 3

[0052] Based on Embodiment 1, this embodiment provides further solutions for magnetic component 1, push component 2, and elastic component 1.

[0053] Both the magnetic component 1 and the pusher component 2 are positioned along the path of the moving contact rod's closing and opening action. The magnetic component 1 is located on the opening side of the moving contact rod, while the pusher component 2 is located on the closing side. That is, compared to the magnetic component 1, the pusher component 2 is closer to the end of the moving contact rod. Furthermore, the magnetic component 1 is in contact with the moving contact rod, while the pusher component 2 is not in contact with it, so that when the magnetic component 1 moves closer to the pusher component 2, it drives the moving contact rod to perform a closing action.

[0054] Preferably, several elastic elements are added and distributed on the side of the magnetic element 1, on the same side as the end of the moving contact rod. One end of each elastic element is fixed in spatial position, while the other end abuts against the magnetic element 1. In Embodiment 1, the elastic elements at the end of the moving contact rod can be removed or retained.

[0055] Example 4

[0056] Based on any of the embodiments in Embodiments 1 to 3, this embodiment provides a further solution for the moving contact rod.

[0057] Please see Figure 1 and Figure 2 The end of the movable contact rod is mounted on a pull rod, and the movable contact rod is driven by the pull rod. Here, the pull rod is regarded as an extension of the movable contact rod. The relationship between the magnetic component 1, push component 2, locking groove, locking component, elastic component 1 and the movable contact rod in Embodiments 1 to 3 is transformed into the relationship between them and the pull rod in this embodiment.

[0058] Example 5

[0059] Based on any of the embodiments in Embodiments 1 to 4, this embodiment provides a driving scheme for the lock 3.

[0060] Please see Figure 3 and Figure 4 The locking element 3 adopts an eddy current drive mechanism, which includes a coil disk 4, an eddy current disk 5, and an elastic element 2.

[0061] Specifically:

[0062] The coil disk 4 is connected to an external power source. When the coil disk 4 is energized, it establishes a magnetic field that drives the locking element 3 to operate.

[0063] The eddy current disk 5 is located within the magnetic field range of the coil disk 4. When the eddy current disk 5 senses the magnetic field of the coil disk 4, it generates an induced magnetic field to drive the locking element 3 to operate, thus cooperating with the coil disk 4 to drive the locking element 3. The induced magnetic field generated by the eddy current disk 5 repels the magnetic field of the coil disk 4.

[0064] The second elastic element is located at the end of the lock 3 (not the end inserted into the lock groove). One end of the second elastic element is fixed in space, while the other end abuts against the end of the lock 3.

[0065] Preferably, the coil disk 4 is located on the locking side of the lock member 3, while the vortex disk 5 is located on the unlocking side of the lock member 3. That is, compared with the coil disk 4, the vortex disk 5 is closer to the end of the lock member 3. In addition, the coil disk 4 does not contact the lock member 3, while the vortex disk 5 is in contact with the lock member 3, so that when the vortex disk 5 moves away from the coil disk 4, it drives the lock member 3 to perform an unlocking action.

[0066] Preferably, several elastic elements 2 are provided and distributed on the side of the vortex disk 5 on the same side as the end of the locking element 3. One end of each elastic element 2 is spatially fixed, while the other end abuts against the vortex disk 5. In addition, the elastic element 1 at the end of the locking element 3 can be removed or retained.

[0067] In this embodiment, when the lock 3 performs the unlocking action, the elastic element 2 is compressed by force. After the coil 4 is de-energized and the lock groove is aligned with the lock 3, the lock 3 is inserted into the lock groove due to the reset of the elastic element 2.

[0068] Example 6

[0069] Based on any of the embodiments in Embodiments 1 to 4, this embodiment provides a driving scheme for the lock 3.

[0070] The locking element 3 adopts an eddy current drive mechanism, which includes a coil disk 4, an eddy current disk 5, and an elastic element 2.

[0071] Specifically:

[0072] The coil disk 4 is connected to an external power source. When the coil disk 4 is energized, it establishes a magnetic field that drives the locking element 3 to operate.

[0073] The eddy current disk 5 is located within the magnetic field range of the coil disk 4. When the eddy current disk 5 senses the magnetic field of the coil disk 4, it generates an induced magnetic field to drive the locking element 3 to operate, thus cooperating with the coil disk 4 to drive the locking element 3. The induced magnetic field generated by the eddy current disk 5 repels the magnetic field of the coil disk 4.

[0074] The second elastic element is located at the end of the lock 3 (not the end inserted into the lock groove). One end of the second elastic element is fixed in space, while the other end abuts against the end of the lock 3.

[0075] Preferably, the coil disk 4 is located on the unlocking side of the lock element 3, while the vortex disk 5 is located on the locking side of the lock element 3. That is, compared with the vortex disk 5, the coil disk 4 is closer to the end of the lock element 3. In addition, the coil disk 4 is in contact with the lock element 3, while the vortex disk 5 is not in contact with the lock element 3, so that when the coil disk 4 moves away from the vortex disk 5, it drives the lock element 3 to perform an unlocking action.

[0076] Preferably, several elastic elements 2 are added and distributed on the side of the coil disc 4 on the same side as the end of the locking element 3. One end of each elastic element 2 is fixed in spatial position, while the other end abuts against the coil disc 4. In addition, the elastic element 1 at the end of the locking element 3 can be removed or retained.

[0077] In this embodiment, when the lock 3 performs the unlocking action, the elastic element 2 is compressed by force. After the coil 4 is de-energized and the lock groove is aligned with the lock 3, the lock 3 is inserted into the lock groove due to the reset of the elastic element 2.

[0078] In summary, in any of the embodiments from Embodiment 1 to Embodiment 6, the elastic element (elastic element 1, elastic element 2) refers to a component that can be compressed and stretched back to its original position, such as a spring, an elastic sheet, or a combination of a spring and a telescopic rod.

[0079] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A reverse-biased fast-closing switch, comprising a stationary contact rod and a moving contact rod, characterized in that, Also includes: Magnetic component (1) establishes the magnetic driving force for closing the switch; The pusher (2) is within the magnetic field range of the magnetic component (1) and works with the magnetic component (1) to drive the switch to close. A locking groove is formed on the side wall of the moving contact rod; The locking element (3) is located on the side of the moving contact rod. When the locking element (3) is inserted into the lock groove, it locks the moving contact rod, and when the locking element (3) is removed from the lock groove, it unlocks the moving contact rod. The first elastic element provides the driving force for the reset of the moving contact rod.

2. The reverse-current fast closing switch according to claim 1, characterized in that: The magnetic component (1) is a permanent magnet.

3. The reverse-current fast closing switch according to claim 1, characterized in that: The magnetic component (1) is a coil, and an external power supply is connected to the coil. When the magnetic component (1) is energized, a magnetic field is established.

4. A fast-closing switch without reverse direction according to any one of claims 1-3, characterized in that: The pusher (2) is made of a material that can be attracted by the magnet (1).

5. A fast-closing switch without reverse direction according to any one of claims 1-3, characterized in that: The pusher (2) is a permanent magnet, and the opposing surfaces of it and the magnet (1) are opposite magnetic poles.

6. A fast-closing switch without reverse direction according to any one of claims 1-3, characterized in that: The pusher (2) is a coil and is connected to an external power source to supply power to the coil. When the pusher (2) is energized, it establishes a magnetic field that attracts the magnetic component (1).

7. A fast-closing switch without reverse direction according to claim 1, characterized in that: One end of the elastic element is fixed in space, while the other end abuts against the movable contact rod or the pusher (2); Alternatively, one end of the elastic element is fixed in space, while the other end abuts against the moving contact rod or magnetic element (1).

8. A fast-closing switch without reverse polarity according to claim 1, characterized in that, The locking element (3) employs an eddy current drive mechanism, which includes: The coil (4) is connected to an external power supply. The eddy current disk (5) is located within the magnetic field range of the coil disk (4) and works with the coil disk (4) to drive the lock (3); The second elastic element provides a driving force for the reset of the locking element (3).

9. A fast-closing switch without reverse direction according to claim 8, characterized in that: After the coil disk (4) is energized, the induced magnetic field established by the eddy current disk (5) repels or attracts the magnetic field of the coil disk (4).

10. A fast-closing switch without reverse polarity according to claim 8, characterized in that: One end of the elastic element 2 is fixed in space, while the other end abuts against the locking element (3) or the vortex disk (5); Alternatively, one end of the elastic element 2 may be fixed in a spatial position, while the other end may abut against the lock element (3) or the coil disc (4).

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