Mechanism for sensing opening and closing states of magnetic control column switch
By employing a design that alternates between reed switches and permanent magnets in the magnetically controlled column switch, and combining electromagnets and reset components to control the sliding of the moving iron core, the impact of the magnetically controlled column switch and the failure problem of mechanical limit switches are solved, thereby improving service life and opening and closing stability.
Patent Information
- Application Number
- CN202520348363.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The rapid opening and closing speed of the magnetically controlled pole switch results in impact forces that affect its service life, and the failure of the mechanical limit switch affects the stability of the moving iron core movement.
The system employs a reed switch and a permanent magnet distributed at intervals. The moving iron core is driven to slide through a magnetic control mechanism. The permanent magnet moves closer to or away from the reed switch to avoid direct contact. The system combines an electromagnet and a reset component to control the closing and opening states of the moving iron core. The system also utilizes a guide groove and a support mechanism to improve movement stability.
It improves the service life and opening/closing stability of the magnetically controlled pole-mounted switch, reduces the impact of mechanical limit switch failures, and enhances applicability and stability.
Smart Images
Figure CN223809076U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pole-mounted switches, and in particular to a magnetically controlled pole-mounted switch opening and closing status sensing mechanism. Background Technology
[0002] Magnetic control pole-mounted switches are a new type of pole-mounted switch introduced in recent years. They employ a magnetic control mechanism based on a magnetically controllable semi-hard magnetic material to replace the traditional permanent magnet mechanism. They feature small size, low drive power, long service life, and excellent closing and opening time characteristics, and are expected to replace permanent magnet pole-mounted switches and spring-operated pole-mounted switches, becoming the next generation of pole-mounted switches in the field of distribution network automation. To achieve automatic control of the magnetic control pole-mounted switch, its opening and closing status must be fed back to the corresponding control terminal.
[0003] Currently, the sensing mechanism for the opening and closing status of magnetically controlled pole-mounted switches typically consists of a mechanical limit switch and its contact mechanism. The action of the contact mechanism is driven by the moving iron core of the magnetically controlled pole-mounted switch. During opening and closing, the contact mechanism presses or releases the button of the mechanical limit switch, causing a change in the state of the normally open and normally closed contacts inside the mechanical limit switch.
[0004] There are two main problems with the existing technology: First, the opening and closing speed of the magnetically controlled pole-mounted switch is fast, and the current contact mechanism has a large impact force on the mechanical limit switch, which will affect the service life of the mechanical limit switch; Second, the contact mechanism and the mechanical limit switch are in direct contact. When the mechanical limit switch malfunctions (such as jamming), the movement of the moving iron core that drives the contact mechanism will be affected, which in turn affects the normal opening and closing of the magnetically controlled pole-mounted switch. Utility Model Content
[0005] In order to improve the service life and stability of normal opening and closing of magnetically controlled pole-mounted switches, this application provides a magnetically controlled pole-mounted switch opening and closing status sensing mechanism.
[0006] The magnetically controlled pole-mounted switch opening and closing status sensing mechanism provided in this application adopts the following technical solution:
[0007] A magnetically controlled column-mounted switch opening / closing status sensing device includes a magnetic control mechanism, a moving iron core, a permanent magnet, and a reed switch. The moving iron core is slidably mounted on the magnetic control mechanism, the permanent magnet is mounted on the moving iron core, and the reed switch is mounted on the magnetic control mechanism and spaced apart from the movement path of the permanent magnet. The magnetic control mechanism is used to drive the moving iron core to slide, causing the permanent magnet to move closer to or away from the reed switch.
[0008] By adopting the technical scheme, the staff electrically connects the reed switch to the control terminal, the magnetic control mechanism drives the moving iron core to slide, the moving iron core drives the permanent magnet to move close to or away from the reed switch, the normally open and normally closed contacts in the reed switch are closed or separated, and the opening and closing state of the magnetic control column switch can be fed back to the corresponding control terminal, the moving path of the reed switch is spaced from the permanent magnet, direct contact between the permanent magnet and the reed switch is avoided, the problem that impact force caused by fast opening and closing speed of the magnetic control column switch affects the service life of the magnetic control column switch and the problem that the mechanical travel switch fails to affect the movement of the moving iron core are improved, and the service life of the magnetic control column switch and the stability of normal opening and closing are improved.
[0009] Optionally, the magnetic control mechanism comprises a base, an electromagnet and a reset member, the electromagnet is arranged on the base, the electromagnet is electrically connected with the power supply, the reed switch is arranged on the base, and the reset member is arranged on the base and used for driving the moving iron core to move away from the electromagnet.
[0010] By adopting the technical scheme, the electromagnet is powered, the moving iron core is adsorbed, the moving iron core is closed, and the closing is performed.
[0011] Optionally, the reset member comprises an electromagnetic block, the electromagnetic block is arranged on the moving iron core and electrically connected with the power supply.
[0012] By adopting the technical scheme, the electromagnetic block is powered, the magnetic pole of the electromagnetic block is opposite to the magnetic pole of the electromagnet, and the moving iron core is conveniently driven to move away from the electromagnet.
[0013] Optionally, a guide groove is arranged on the moving iron core, and the electromagnet is slidably arranged in the guide groove.
[0014] By adopting the technical scheme, the sidewall of the guide groove guides the sliding of the moving iron core relative to the electromagnet, and the stability of the moving iron core in the movement process is improved.
[0015] Optionally, the guide groove is arranged in parallel with the reed switch.
[0016] By adopting the technical scheme, the guide groove arranged in parallel with the reed switch enables the moving iron core to move the permanent magnet only in the direction parallel to the reed switch, and the possibility of collision between the permanent magnet and the reed switch is reduced.
[0017] Optionally, a supporting mechanism for supporting the permanent magnet is arranged on the moving iron core, the supporting mechanism comprises a supporting stud and a first support, the supporting stud is threadedly arranged on the moving iron core, the first support is arranged on the supporting stud, and the permanent magnet is arranged on the first support.
[0018] By adopting the technical scheme, the staff twists the supporting stud, the supporting stud is close to or away from the moving iron core, and then the first support is close to or away from the moving iron core, so that the position of the permanent magnet on the moving iron core is adjusted, and then the moving path range of the permanent magnet is adjusted, and the applicability of the permanent magnet to different moving path range requirements is improved.
[0019] Optionally, the base is provided with a second support, and the reed switch is arranged on the second support.
[0020] By adopting the technical scheme, the second support is installed on the base through the bolt, so that the reed switch is conveniently positioned and installed on the base.
[0021] Optionally, a through hole is formed in the second support, and the moving iron core is slidably arranged in the through hole.
[0022] By adopting the technical scheme, the side wall of the through hole guides the movement of the moving iron core, and the stability of the moving iron core during sliding is further improved.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. Avoiding direct contact between the permanent magnet and the reed switch, thereby improving the service life of the magnetic control column switch and the stability of the normal opening and closing of the magnetic control column switch, and improving the service life of the magnetic control column switch.
[0025] 2. The first support is close to or away from the moving iron core, so that the position of the permanent magnet on the moving iron core is adjusted, and then the moving path range of the permanent magnet is adjusted, and the applicability of the permanent magnet to different moving path range requirements is improved. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a structure schematic view of the opening and closing state sensing mechanism of the magnetic control column switch of the embodiment of the present application.
[0027] Figure 2 is a sectional structure schematic view of the opening state.
[0028] Figure 3 is a sectional structure schematic view of the closing state.
[0029] Reference signs: 1, magnetic control mechanism; 11, base; 12, electromagnet; 13, reset member; 2, moving iron core; 21, guide groove; 3, permanent magnet; 4, reed switch; 5, supporting mechanism; 51, supporting stud; 52, first support; 6, second support; 61, through hole. DETAILED DESCRIPTION
[0030] The following description will be made in conjunction with the accompanying drawings Figures 1-3 The application is further described in detail.
[0031] The embodiment of the application discloses a magnetic control column on-off switch opening and closing state sensing mechanism.
[0032] Referring to Figure 1 , Figure 2 , the magnetic control column on-off switch opening and closing state sensing mechanism comprises a magnetic control mechanism 1, a moving iron core 2, a permanent magnet 3, a magnetic reed switch 4 and a supporting mechanism 5, the magnetic control mechanism 1 is used for driving the moving iron core 2 to slide, the magnetic control mechanism 1 comprises a base 11, an electromagnet 12 and a reset piece 13, the electromagnet 12 is installed on the base 11, the electromagnet 12 is electrically connected with a power supply, the moving iron core 2 is provided with a guide groove 21, the electromagnet 12 is slidingly inserted into the guide groove 21, the side wall of the guide groove 21 limits the sliding of the electromagnet 12 relative to the moving iron core 2, so that the moving iron core 2 can only slide along the length direction of the electromagnet 12, and the stability of the moving iron core 2 during movement is improved; the reset piece 13 is installed on the base 11, the reset piece 13 is used for driving the moving iron core 2 to move away from the electromagnet 12, and the reset piece 13 comprises an electromagnetic block, the electromagnetic block is embedded in the moving iron core 2, and the electromagnetic block is electrically connected with the power supply.
[0033] When closing, the electromagnet 12 is powered on, so that the electromagnet 12 can adsorb the moving iron core 2, the moving iron core 2 moves to the direction close to the base 11 to close and close; when opening, the electromagnet 12 and the electromagnetic block are powered on, so that the magnetic poles of the electromagnet 12 and the electromagnetic block are opposite, the electromagnet 12 can repel the electromagnetic block, and the moving iron core 2 moves away from the base 11 to open.
[0034] Referring to Figure 1 , Figure 2 , the supporting mechanism 5 is installed on the moving iron core 2, the supporting mechanism 5 is used for supporting the permanent magnet 3, the supporting mechanism 5 comprises a supporting stud 51 and a first support 52, the supporting stud 51 is screw-mounted on the moving iron core 2 along the sliding direction of the moving iron core 2, the first support 52 is installed on the supporting stud 51 through a nut on the supporting stud 51, and the permanent magnet 3 is installed on the first support 52.
[0035] The worker screws the support stud 51 onto the moving iron core 2 and positions the first bracket 52 onto the support stud 51 using the nut on the support stud 51. This allows for easy positioning and installation of the permanent magnet 3 on the moving iron core 2. By screwing the support stud 51, the worker can move the first bracket 52 closer to or further away from the moving iron core 2, thus adjusting the distance between the permanent magnet 3 and the moving iron core 2. Subsequently, when the moving iron core 2 moves, it can move the permanent magnet 3 within different movement path ranges, thereby adjusting the movement path range of the permanent magnet 3 and improving its applicability to different movement path range requirements.
[0036] Reference Figure 1 , Figure 2 A second bracket 6 is bolted to the base 11, and the reed switch 4 is mounted on the second bracket 6. A through hole 61 is provided on the second bracket 6, and the moving iron core 2 slides through the through hole 61. Workers can easily position and install the reed switch 4 on the base 11 by bolting the second bracket 6 to the base 11. Furthermore, during subsequent movement of the moving iron core 2, the side wall of the through hole 61 guides the movement of the moving iron core 2, improving its stability during movement.
[0037] Reference Figure 2 , Figure 3 The moving paths of the reed switch 4 and the permanent magnet 3 are spaced apart, and the opening direction of the guide groove 21 is parallel to that of the reed switch 4. When the moving iron core 2 moves, the electromagnet 12 limits the moving direction of the side wall of the moving groove, so that the moving iron core 2 can only drive the permanent magnet 3 to move in a direction parallel to the reed switch 4, reducing the possibility of the permanent magnet 3 colliding with the reed switch 4 when it approaches it, and avoiding direct contact between the permanent magnet 3 and the reed switch 4.
[0038] The implementation principle of the switch opening and closing state sensing mechanism of the magnetic control column switch is as follows: the staff electrically connects the magnetic reed switch 4 to the control terminal, then energizes the electromagnet 12, the electromagnet 12 adsorbs the moving iron core 2, so that the moving iron core 2 is closed to close the switch, the moving iron core 2 drives the permanent magnet 3 to approach the magnetic reed switch 4, so that the normally open and closed contact in the magnetic reed switch 4 is closed, and then the closing state of the magnetic control column switch is fed back to the corresponding control terminal, the staff energizes the electromagnet block, so that the magnetic pole of the electromagnet block is opposite to the magnetic pole of the electromagnet 12, the electromagnet 12 can repel the electromagnet 12, drive the moving iron core 2 to open to open the switch, the moving iron core 2 drives the permanent magnet 3 to move away from the magnetic reed switch 4, the normally open and closed contact in the magnetic reed switch 4 is disconnected, and then the opening state of the magnetic control column switch is fed back to the corresponding control terminal, in the whole opening and closing process, the moving path of the magnetic reed switch 4 is separated from the permanent magnet 3, so as to avoid the direct contact between the permanent magnet 3 and the magnetic reed switch 4, and then the impact force caused by the fast opening and closing speed of the magnetic control column switch is improved, the service life of the magnetic control column switch is improved, and the problem that the mechanical type travel switch affects the movement of the moving iron core 2 is solved, and the service life and normal opening and closing stability of the magnetic control column switch are improved.
[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. A magnetic control column on-off switch opening and closing state sensing mechanism, characterized in that: The application relates to a magnetic control mechanism (1), a moving iron core (2), a permanent magnet (3) and a magnetic reed switch (4), wherein the moving iron core (2) is slidably arranged on the magnetic control mechanism (1), the permanent magnet (3) is arranged on the moving iron core (2), the magnetic reed switch (4) is arranged on the magnetic control mechanism (1) and is spacedly distributed along the moving path of the permanent magnet (3), and the magnetic control mechanism (1) is used for driving the moving iron core (2) to slide so that the permanent magnet (3) approaches or moves away from the magnetic reed switch (4).
2. A mechanism for sensing the open or closed state of a magnetic control column switch according to claim 1, characterized in that: The magnetic control mechanism (1) comprises a base (11), an electromagnet (12) and a reset member (13), the electromagnet (12) is arranged on the base (11), the electromagnet (12) is electrically connected with a power supply, the magnetic reed switch (4) is arranged on the base (11), and the reset member (13) is arranged on the base (11) and is used for driving the moving iron core (2) to move away from the electromagnet (12).
3. The mechanism for sensing the on-off state of a magnetic control column switch according to claim 2, characterized in that: The reset member (13) comprises an electromagnetic block, the electromagnetic block is arranged on the moving iron core (2) and is electrically connected with the power supply.
4. The mechanism for sensing the on-off state of a magnetic control column switch according to claim 2, characterized in that: A guide groove (21) is arranged on the moving iron core (2), and the electromagnet (12) is slidably arranged in the guide groove (21).
5. A mechanism for sensing the open or closed state of a switch according to claim 4, characterized in that: The guide groove (21) is parallel to the magnetic reed switch (4).
6. A magnetic control column on-off switch opening and closing state sensing mechanism according to claim 1, characterized in that: A supporting mechanism (5) for supporting the permanent magnet (3) is arranged on the moving iron core (2), the supporting mechanism (5) comprises a supporting stud (51) and a first support (52), the supporting stud (51) is threadedly arranged on the moving iron core (2), the first support (52) is arranged on the supporting stud (51), and the permanent magnet (3) is arranged on the first support (52).
7. A magnetic control column on-off switch opening and closing state sensing mechanism according to claim 2, characterized in that: A second support (6) is bolted on the base (11), and the magnetic reed switch (4) is arranged on the second support (6).
8. The mechanism according to claim 7, wherein: A through hole (61) is arranged on the second support (6), and the moving iron core (2) is slidably arranged in the through hole (61).