CN116110745A - Electromagnetic switch and switch control method - Google Patents
Electromagnetic switch and switch control method Download PDFInfo
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- CN116110745A CN116110745A CN202210984331.8A CN202210984331A CN116110745A CN 116110745 A CN116110745 A CN 116110745A CN 202210984331 A CN202210984331 A CN 202210984331A CN 116110745 A CN116110745 A CN 116110745A
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
Abstract
The electromagnetic switch comprises a second ferromagnetic metal component, wherein the switch control device is arranged between the permanent magnet and the second ferromagnetic metal component, the permanent magnet moves to enable the movable contact to be in contact with the static contact, and the second ferromagnetic metal component attracts the permanent magnet close to the second ferromagnetic metal component to enable the permanent magnet to stop at the position to maintain the state of the contact bias of the movable contact and the static contact, so that the electric energy consumption is reduced.
Description
Technical Field
The invention belongs to the field of electromagnetic control, and relates to an electromagnetic switch and a switch control method.
Background
A relay is an electrical control device that produces a predetermined step change in a controlled quantity in an electrical output circuit. Is an automatic switch which uses small current to control the operation of large current. The circuit plays roles of automatic regulation, safety protection, circuit conversion and the like.
The prior patent CN216487880U of the applicant discloses an electromagnetic relay, in which a permanent magnet is energized by a coil to make a movable contact and a static contact go down, and the extrusion force of the permanent magnet to a waterproof capsule is maintained by continuous energization of the coil, so that the movable contact and the static contact are maintained, and the coil is required to be always energized in the maintenance of the conductive state of the movable contact and the static contact.
Disclosure of Invention
In order to solve the problem of reducing the power consumption of the movable contact and the static contact in a state of maintaining conduction, the invention provides the following technical scheme: an electromagnetic switch according to some embodiments of the present application includes
A coil for generating electromagnetic force;
the permanent magnet is arranged in the through hole of the coil, and magnetic force generated by electrifying the coil drives the permanent magnet to axially move in the through hole of the coil;
a first ferromagnetic metal member disposed on a first side of the permanent magnet in an axial direction;
the switch control device is arranged on the second side of the permanent magnet in the axial direction and comprises a movable contact piece and a static contact piece which are oppositely arranged;
the pushing device is arranged on one side of the permanent magnet, facing the switch control device, and when the permanent magnet moves towards the switch control device, the pushing device can bias the movable contact piece to be in contact with the static contact piece;
the switch control device is arranged between the permanent magnet and the second ferromagnetic metal part, the movable contact piece and the static contact piece are contacted and biased when the permanent magnet moves, and the second ferromagnetic metal part attracts the permanent magnet close to the switch control device to enable the permanent magnet to stop at the position and maintain the state of the contact and bias of the movable contact piece and the static contact piece.
According to an electromagnetic switch of some embodiments of the present application, the switch control device includes a waterproof capsule, the waterproof capsule includes a capsule base and a waterproof gum cover fixed to the capsule base, a movable contact and a stationary contact are disposed inside the waterproof gum cover, and the movable contact and the stationary contact are fixed to the capsule base.
An electromagnetic switch according to some embodiments of the present application further includes a control circuit including
The rectifier bridge is used for converting alternating current into direct current;
the switch device comprises a conducting state and a closing state, the switch device is in the conducting state, the direct current is supplied to the coil in different voltage directions, the coil drives the permanent magnet to ascend or descend through electromagnetic force, the switch device is in the closing state, the direct current is disconnected from the coil, and the permanent magnet is attracted by a ferromagnetic metal part closer to the switch device to stop at the position.
An electromagnetic switch according to some embodiments of the present application, the off state comprising a first off state, the on state comprising a first on state;
in the first conduction state, the switching device conducts a first electrode of the rectifier bridge with a first wiring terminal of the coil through a wire, and conducts a second electrode of the rectifier bridge with a second wiring terminal of the coil through a wire; the first electrode and the second electrode may be understood as one of which is a positive electrode and the other of which is a negative electrode;
In the first closed state, the switching device turns off the power supply to the coil.
An electromagnetic switch according to some embodiments of the present application, the off state further comprises a second off state, and the on state further comprises a second on state;
in the second conduction state, the switching device conducts the first electrode of the rectifier bridge with the second wiring terminal of the coil through a wire, and conducts the second electrode of the rectifier bridge with the first wiring terminal of the coil through a wire;
in the second closed state, the switching device turns off the power supply to the coil.
An electromagnetic switch according to some embodiments of the present application, the switch device includes
A first switching device including a first live wire switch including a movable contact and a stationary contact disposed opposite to each other, a first neutral wire switch including a movable contact and a stationary contact disposed opposite to each other, and a first actuating member configured to conduct the contacted switch by contact-biasing the movable contact and the stationary contact of the contacted switch with one of the first live wire switch and the first neutral wire switch;
A second switching device including a second live wire switch including a movable contact and a stationary contact disposed opposite to each other, a second neutral wire switch including a movable contact and a stationary contact disposed opposite to each other, and a second actuating member configured to conduct the contacted switch by contact-biasing the movable contact and the stationary contact of the contacted switch with one of the second live wire switch and the second neutral wire switch; and
a connecting wire configured to connect a first terminal of the coil with one contact of the first live wire switch and one contact of the first neutral wire switch, respectively, and a second terminal of the coil with one contact of the second live wire switch and one contact of the second neutral wire switch, respectively; and the first electrode of the rectifier bridge is respectively connected with the other contact piece of the first live wire switch and the other contact piece of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the other contact piece of the first zero wire switch and the other contact piece of the second zero wire switch.
According to some embodiments of the present application, the connecting wire is configured to connect the second terminal of the coil with the static contact of the second live wire switch and the static contact of the second neutral wire switch, respectively, and connect the first terminal of the coil with the static contact of the first live wire switch and the static contact of the first neutral wire switch, respectively; and the first electrode of the rectifier bridge is respectively connected with the movable contact of the first live wire switch and the movable contact of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the movable contact of the first zero wire switch and the movable contact of the second zero wire switch.
According to some embodiments of the present application, the first switching device is configured to include two states of a live conducting state and a neutral conducting state, and the second switching device is configured to include two states of a live conducting state and a neutral conducting state;
the switching device is in the first conduction state, the first switching device is in a live wire conduction state, a first electrode of the rectifier bridge is conducted with a first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and a second electrode of the rectifier bridge is conducted with a second wiring end of the coil through a wire;
the switching device is in the second conduction state, the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a live wire conduction state, and the first electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
the switching device is in a zero line conduction state, the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
The switching device is in the second closing state, the first switching device is in a zero line conducting state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conducting state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire.
An electromagnetic switch according to some embodiments of the present application, the first switching device and the first actuating member are mounted in a housing, the first actuating member comprising
The first vertical rod is arranged on one side of the shell, a first cross rod I and a second cross rod II are arranged at different heights of the first vertical rod, and the first end part of the first vertical rod extends out of the shell from the inside of the shell;
the first elastic piece is arranged at the second end part of the first vertical rod and is configured to press the first vertical rod to compress the first elastic piece, so that the first cross rod I contacts and biases the movable contact piece of the first live wire switch, the movable contact piece of the first live wire switch contacts with the static contact piece of the first live wire switch, and the second cross rod II is separated from the movable contact piece of the first zero wire switch; stopping pressing along the vertical rod to recover the first elastic piece, enabling the second cross rod to contact and bias the movable contact piece of the first zero line switch, enabling the movable contact piece of the first zero line switch to contact with the static contact piece of the first zero line switch, and enabling the first cross rod to be separated from the movable contact piece of the first live line switch.
According to the electromagnetic switch of some embodiments of the present application, the first cross rod and the second cross rod enclose a containing space with the first vertical rod, a vertical distance between the first cross rod and the second cross rod is a first height, the first live wire switch and the first neutral wire switch are arranged on one side of the shell opposite to one side where the first vertical rod is located, a vertical arrangement height of the first live wire switch and the first neutral wire switch on one side where the first live wire switch and the first neutral wire switch are located is a second height, the first live wire switch and the first neutral wire switch are arranged opposite to the containing space, and the second height is larger than the first height;
the movable contact piece of the first live wire switch is higher than the static contact piece of the first live wire switch in the vertical position, and the movable contact piece of the first zero wire switch is lower than the static contact piece of the first zero wire switch in the vertical position;
the movable contact piece of the first live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length, and the movable contact piece of the first neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length.
An electromagnetic switch according to some embodiments of the present application, the first switching device and the first actuating member are mounted in a housing, the first actuating member comprising
The first supporting rod is fixed on the bottom plate of the shell;
a first teeter lever including a first end and a second end, the first teeter lever being supported by the first support bar at a first teeter lever length direction for the first teeter lever, the first teeter lever being capable of teeter about the support point, the teeter lever including one of teeter and teeter, the first end of the first teeter lever being at one of teeter and teeter, the second end of the teeter lever being at another teeter different from the one at which the first end is at;
the first pressing rod comprises a first end and a second end, the first end part of the first pressing rod extends out of the shell from the inside of the shell, and the second end of the first pressing rod is connected with the first end of the first seesaw rod;
the first elastic piece comprises a first end and a second end, the first end of the first elastic piece is fixed on the top plate of the shell, and the second end of the first elastic piece is connected with the second end of the first seesaw rod;
pressing the first pressing rod to enable the first end of the first lifting rod to lift downwards, enabling the second end of the first lifting rod to lift upwards, enabling the first end of the first lifting rod to contact and bias the movable contact piece of the first live wire switch, enabling the movable contact piece of the first live wire switch to contact with the static contact piece of the first live wire switch, and enabling the second end of the first lifting rod to be separated from the movable contact piece of the first zero wire switch; and stopping pressing the vertical rod to enable the first elastic piece to recover, enabling the second end of the first seesaw moving rod to move downwards, enabling the first end of the first seesaw moving rod to move upwards, enabling the second end of the first seesaw moving rod to contact with a movable contact piece of the first zero line switch in a biased manner, enabling the movable contact piece of the first zero line switch to be in contact with a static contact piece of the first zero line switch, and enabling the first end of the first seesaw moving rod to be separated from the movable contact piece of the first live line switch.
According to some embodiments of the electromagnetic switch, the first live wire switch comprises a first live wire waterproof capsule switch, the first live wire waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, a movable contact piece and a static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base; the first zero line switch comprises a first zero line waterproof capsule switch, the first zero line waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base.
An electromagnetic switch according to some embodiments of the present application, the second switching device and the second actuating member are mounted in a housing, the second actuating member comprising
The first vertical rod is arranged on one side of the shell, a first transverse rod and a second transverse rod are arranged at different heights of the second vertical rod, and the first end part of the second vertical rod extends out of the shell from the inside of the shell;
the second elastic piece is arranged at the second end part of the second vertical rod and is configured to press the second vertical rod to compress the second elastic piece, so that the first cross rod is contacted with and biased against the movable contact piece of the second live wire switch, the movable contact piece of the second live wire switch is contacted with the static contact piece of the second live wire switch, and the second cross rod is separated from the movable contact piece of the second zero wire switch; stopping pressing along the vertical rod to recover the second elastic piece, enabling the second cross rod to be in contact with and bias the movable contact piece of the second zero line switch, enabling the movable contact piece of the second zero line switch to be in contact with the static contact piece of the second zero line switch, and enabling the first cross rod to be separated from the movable contact piece of the second live line switch.
According to the electromagnetic switch of some embodiments of the present application, the first and second cross bars and the second vertical bar enclose a receiving space, a vertical distance between the first and second cross bars is a first height, the second live wire switch and the first neutral wire switch are arranged at one side of the housing opposite to one side where the second vertical bar is located, a vertical arrangement height of the second live wire switch and the second neutral wire switch at the one side is a second height, the second live wire switch and the second neutral wire switch are arranged opposite to the receiving space, and the second height is greater than the first height;
the movable contact piece of the second live wire switch is higher than the static contact piece of the second live wire switch in the vertical position, and the movable contact piece of the second zero wire switch is lower than the static contact piece of the second zero wire switch in the vertical position;
the movable contact piece of the second live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space, and the movable contact piece of the second neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space.
An electromagnetic switch according to some embodiments of the present application, the second switching device and the second actuating member are mounted in a housing, the second actuating member comprising
The second supporting rod is fixed on the bottom plate of the shell;
the second seesaw moving rod comprises a first end and a second end, the second seesaw moving rod is supported by the second supporting rod in the length direction of the second seesaw moving rod, the second seesaw moving rod can seesaw around the supporting point, the second seesaw moving rod comprises upward seesaw moving and downward seesaw moving, the first end of the second seesaw moving rod is in one of upward seesaw moving and downward seesaw moving, and the second end of the second seesaw moving rod is in the other seesaw moving different from the one in which the first end is located;
the second pressing rod comprises a first end and a second end, the first end part of the second pressing rod extends out of the shell from the inside of the shell, and the second end of the second pressing rod is connected with the first end of the second seesaw rod;
the first end of the second elastic piece is fixed on the top plate of the shell, and the second end of the second elastic piece is connected with the second end of the second seesaw rod;
pressing the second pressing rod to enable the first end of the second lifting rod to lift downwards, enabling the second end of the second lifting rod to lift upwards, enabling the first end of the second lifting rod to contact and bias the movable contact piece of the second live wire switch, enabling the movable contact piece of the second live wire switch to contact with the static contact piece of the second live wire switch, and enabling the second end of the second lifting rod to be separated from the movable contact piece of the second zero wire switch; and stopping pressing the vertical rod to enable the second elastic piece to recover, enabling the second end of the second seesaw moving rod to move downwards, enabling the first end of the second seesaw moving rod to move upwards, enabling the second end of the second seesaw moving rod to be in contact with a movable contact piece of the second zero line switch in a biasing mode, enabling the movable contact piece of the second zero line switch to be in contact with a static contact piece of the second zero line switch, and enabling the first end of the second seesaw moving rod to be separated from the movable contact piece of the second live line switch.
According to some embodiments of the electromagnetic switch, the second live wire switch comprises a second live wire waterproof capsule switch, the second live wire waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base; the second zero line switch comprises a second zero line waterproof capsule switch, the second zero line waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base.
A switch control method according to some embodiments of the present application includes
Placing the switching device in a first conductive state, the permanent magnet moving towards the switching control device and the second ferromagnetic metal component;
the pushing device is used for responding to the movement of the permanent magnet, contacting and pushing the movable contact piece of the switch control device, so that the movable contact piece of the switch control device is contacted with the static contact piece of the switch control device, and the permanent magnet moves to a position close to the second ferromagnetic metal part and is attracted by the second ferromagnetic metal part;
the switch device is in a first closing state, the second ferromagnetic metal component attracts the permanent magnet close to the switch device to stop the permanent magnet at the position, and the movable contact and the static contact of the switch control device are kept in a contact bias state.
A switch control method according to some embodiments of the present application further includes
The switch device is in a second conduction state, the permanent magnet moves towards the first ferromagnetic metal component, the pushing device is separated from the movable contact piece of the switch control device, the movable contact piece of the switch control device is separated from the static contact piece of the switch control device, and the permanent magnet moves to a position close to the first ferromagnetic metal component and is attracted by the first ferromagnetic metal component;
the switch device is placed in a second closed state, and the first ferromagnetic metal component attracts the permanent magnet close to the switch device to stop the permanent magnet at the position.
According to a switch control method of some embodiments of the present application, a switching device is in a first conductive state: the first switching device is in a live wire conduction state, a first electrode of the rectifier bridge is conducted with a first wiring end of the coil through a wire, the second switching device is in a zero wire conduction state, and a second electrode of the rectifier bridge is conducted with a second wiring end of the coil through a wire;
the switching device is in a second conductive state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a live line conduction state, and the first electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
The switching device is in a first closed state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
the switching device is in a second closed state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a first on-state electromagnetic switch and its control circuit.
Fig. 2 is a schematic diagram of the electromagnetic switch in the first off state and its control circuit.
Fig. 3 is a schematic diagram of the electromagnetic switch in the second conductive state and its control circuit.
Fig. 4 is a schematic diagram of the electromagnetic switch in the second off state and its control circuit.
Fig. 5 is a schematic diagram showing the live conducting state of the first switching device in the first example.
Fig. 6 is a schematic diagram of the zero line conduction state of the second switching device in the first example.
Fig. 7 is a schematic diagram of the zero line conduction state of the first switching device in the second example.
Fig. 8 is a schematic diagram of the live conducting state of the second switching device in the second example.
Fig. 9 is a schematic diagram showing the cooperation of the switch device and the pushing device in an example.
Fig. 10 is a schematic view of a waterproof capsule in one example.
1. Coil, 2, permanent magnet, 3, injection molding material, 4, coil housing, 5, waterproof capsule, 6, connecting post, 7, panel, 8, push post, 9, first ferromagnetic metal component, 10, second ferromagnetic metal component, 11, first switching device, 12, second switching device, 13, first vertical rod, 14, first horizontal rod one, 15, first horizontal rod two, 16, first elastic member, 17, switch device housing, 18, waterproof capsule of switching device, 19, second vertical rod, 20, second horizontal rod one, 21, second horizontal rod two, 22, second elastic member, 23, first support rod, 24, first seesaw rod, 25, first push rod, 26, first elastic member, 27, second support rod, 28, second seesaw rod, 29, second push rod, 30.
Detailed Description
Embodiments of the present application are described in detail below by referring to the drawings, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
The electromagnetic switch is a switch controlled by an electromagnet, namely a combination of the electromagnet and the switch. When the electromagnet coil is electrified, electromagnetic attraction force is generated, and the movable iron core pushes or pulls the switch contact to be closed, so that a controlled circuit is switched on. Electromagnetic switches are widely used in various industries, most commonly in industrial applications.
In an embodiment, an electromagnetic switch is provided comprising a coil 1, a permanent magnet 2, a first ferromagnetic metal part 9, a switch control means, a pushing means and a second ferromagnetic metal part 10.
The coil 1 is used for generating magnetic force. In some examples, the invention is illustrated by way of example in the orientation shown in fig. 1. As shown in fig. 1-4, the coil 1 is in the preferred embodiment arranged vertically. Preferably the surface of the coil 1 is covered with an injection molding material 3, the injection molding material 3 forms a coil housing 4, and the coil housing 4 is adapted to the shape of the coil 1 to fix the coil 1 inside the coil housing 4.
The permanent magnet 2 is disposed in a through hole of the coil 1, and magnetic force generated by energizing the coil 1 drives the permanent magnet 2 to move in the axial direction in the through hole of the coil 1. As shown in fig. 1, the permanent magnet 2 is in the preferred case axially movable to be understood as vertically movable. Preferably, the permanent magnet 2 is a permanent magnet, more preferably, it is a magnet column, the magnet column has a certain length along the self axial direction, the length is smaller than the length of the through hole along the self axial direction, for example, the length of the magnet column along the self axial direction is 1/5-1/2 of the length of the through hole along the self axial direction, so that the magnet column is attracted to one ferromagnetic metal part at one end and can obviously have a certain distance from the ferromagnetic metal part at the other end, and the attraction capability of the ferromagnetic metal part at the other end to the magnet column is reduced, so that the magnet column is attracted to the ferromagnetic metal part at the one end stably, and more preferably, the periphery of the permanent magnet 2 forms a shell by an injection molding mode.
The first ferromagnetic metal member 9 is provided on a first side of the permanent magnet 2 in the axial direction. As shown in fig. 1, the first ferromagnetic metal member 9 is disposed above the permanent magnet 2 in a preferred embodiment, and preferably, the first ferromagnetic metal member 9 is fixed to the coil 1, and specifically, the first ferromagnetic metal member 9 is disposed at an upper portion of a through hole of the coil 1 and is fixed to an upper portion of the through hole by the coil 1. Preferably, the outer periphery of the first ferromagnetic metal member 9 is formed into a housing by injection molding.
The switch control device is arranged on the second side of the permanent magnet 2 in the axial direction, and the switch device comprises a movable contact piece and a static contact piece which are oppositely arranged. It can be understood that the switch control device controls the power-on or power-off of the electric equipment, namely, the electric equipment is powered on by the contact of the contact piece of the switch control device, or the electric equipment is powered off by the separation of the contact piece of the switch control device, so that the purpose that the electromagnetic switch controls the strong current with the weak current is realized. As shown in fig. 1, the switch control means is arranged in the preferred embodiment below the permanent magnet 2. Preferably, as shown in fig. 9 and 10, the switch control device comprises a waterproof capsule 5, the waterproof capsule 5 comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece form the capsule base in an injection molding mode and are arranged in the waterproof rubber sleeve, the movable contact piece and the static contact piece are fixed on the capsule base, the movable contact piece is located above the static contact piece, the movable contact piece and the static contact piece are fixed on the capsule base and are covered by the capsule base to be led out, and the leading-out ends are connected with the corresponding wiring terminals. An insulating elastic piece is arranged between the movable contact piece and the static contact piece and is used for assisting and correcting deformation and rebound of the movable contact piece and the static contact piece, contacts are arranged on the movable contact piece and the static contact piece, and the movable contact piece and the static contact piece are contacted with each other by means of the respective contacts. The pushing column 8 is opposite to the movable contact piece of the waterproof capsule 5. The first ferromagnetic metal component comprises a component formed of iron, nickel, cobalt, gadolinium, dysprosium, and an alloy, such as steel, preferably it is a plate.
The pushing device is arranged on one side of the permanent magnet 2 facing the switch control device, and the moving of the permanent magnet 2 towards the switch control device can enable the pushing device to bias the movable contact piece to be in contact with the static contact piece. As shown in fig. 1, the pushing device is mounted at the lower part of the permanent magnet 2, as shown in fig. 1-4, the pushing device comprises a connecting column 6, a panel 7 and pushing columns 8, the lower part of the permanent magnet 2 is connected with the connecting column 6, the connecting column 6 is communicated with an opening on the coil shell 4 and is connected with the panel 7, a plurality of pushing columns 8 are distributed on the lower surface of the panel 7, the pushing columns 8 are opposite to the movable contact piece of the waterproof capsule 5, and the pushing columns 8 are contacted with or separated from the waterproof capsule 5. The permanent magnet 2 is located below the first ferromagnetic metal component 9, the lower portion of the permanent magnet 2 is connected with the connecting column 6, the connecting column 6 penetrates through the opening in the coil housing 4 and is connected with the panel 7, a plurality of pushing columns 8 are distributed on the lower surface of the panel 7, the coil 1, the permanent magnet 2 and part of the connecting columns 6 are sealed inside the coil housing 4, and the panel 7 and the pushing columns 8 are located outside the coil housing 4. The bottom plate of the coil housing 4 has an opening through which the connecting post 6 passes, the connecting post 6 moving vertically in the opening of the bottom plate, in one arrangement the outer circumferential surface of the connecting post 6 being in contact with the inner circumferential surface of the opening of the bottom plate when moving vertically, but this contact does not result in a closure.
The second ferromagnetic metal member 10, the switch control device is disposed between the permanent magnet 2 and the second ferromagnetic metal member 10, as shown in fig. 1, the second ferromagnetic metal member 10 is at the lowest position, and moves at the permanent magnet 2 to bias the movable contact to the stationary contact, and the second ferromagnetic metal member 10 attracts the permanent magnet 2 close to the second ferromagnetic metal member to stop the permanent magnet 2 at the position to maintain the state of the contact bias of the movable contact to the stationary contact.
According to the above-mentioned scheme, when the permanent magnet 2 moves to make the movable contact and the static contact biased and approach the second ferromagnetic metal part 10, the second ferromagnetic metal part 10 attracts the permanent magnet 2 by the magnetic force of pure iron and the permanent magnet, and the permanent magnet 2 is stopped at the position to maintain the state of the movable contact and the static contact biased. It will be appreciated that, without the second ferromagnetic metal component 10, the coil 1 needs to be always energized to maintain the permanent magnet 2 at the position, and the second ferromagnetic metal component 10 can enable the electromagnetic switch to maintain the permanent magnet 2 at the position after the coil 1 is powered off to maintain the contact bias state of the movable contact and the static contact, so that the powered device maintains the powered state. The coil can be powered off after the coil is powered on briefly, so that the contact bias of the movable contact and the static contact can be kept or separated, and the electric equipment is powered on or powered off. The second ferromagnetic metal component comprises iron, nickel, cobalt, gadolinium, dysprosium and components formed from alloys such as steel, preferably the second ferromagnetic metal component is a plate. Preferably, the ferromagnetic metal component is a pure iron component.
In the preferred scheme, the waterproof performance of the relay is improved through the waterproof capsule 5 and the surface of the coil 1 is coated by injection molding, particularly, the contact can be positioned in a completely closed space of the waterproof capsule 5, the defect of dust accumulation is overcome while the waterproof performance is improved, the occurrence of micro-current and wrong conduction is basically avoided, and the contact is positioned in the waterproof capsule 5 and isolated from the outside, so that electric leakage and explosion can be prevented. The waterproof capsule 5 plays roles of waterproof, dustproof, anti-creeping and explosion-proof in the invention, and is used for realizing the purpose of ensuring the accurate action of the contact.
In the preferred scheme, the permanent magnet 2 is driven to push the waterproof capsule 5 of the switch control device downwards when moving downwards so that the movable contact sheet is deflected downwards to be contacted and conducted with the static contact sheet, the pushing device is upwards far away from the waterproof capsule 5 when moving upwards so that the movable contact sheet is separated from the static contact sheet, the vertical movable and resetting control of the permanent magnet 2 is realized through the double magnetic actions of the upper pure iron part, the lower pure iron part and the electromagnetic coil 1 by the state control of the switch device, and the contact conduction in the waterproof capsule 5 of the switch control device can be realized through the movement control. The cooperation of the characteristic combination of the invention can realize a more comprehensive waterproof effect. By the scheme, no matter the state of conducting or separating the movable contact and the static contact, the state is maintained by the attraction force between the permanent magnet 2 and the pure iron, the coil 1 is not required to be always electrified to maintain the conducting or separating state, and only the coil 1 is required to be electrified in the initial stage of needing the movement of the permanent magnet 2. Therefore, the problem that the electromagnetic switch is easy to burn when the coil 1 is electrified for a long time and the problem that the coil 1 consumes electric energy caused by the fact that the coil 1 is electrified and maintained in the conducting state in the prior art is avoided, the electromagnetic switch is particularly important for a large-sized electromagnetic switch, the technical problem is solved, the service life of the electromagnetic switch can be prolonged, and the heat dissipation requirement can be avoided.
According to the scheme, the second ferromagnetic metal component is arranged at the downstream of the switch control device, the permanent magnet moves towards the switch control device to be close to the second ferromagnetic metal component and can attract the second ferromagnetic metal component to enable the permanent magnet to stop at the position, even if power is not supplied to the coil any more, the permanent magnet can be enabled to stop at the current position by taking the permanent magnet as the attractive force between the permanent magnet and the second magnet component, and the movable contact and the static contact of the switch control device are kept in a conducting state, so that after initial power-on, the coil is powered off, power supply to the coil is not continued, the conducting state of the movable contact and the static contact of the switch control device can be maintained, electric equipment can be in a power-on state, and electric energy consumption is reduced.
In the above embodiment, for a plurality of contacts, i.e., a combination of a plurality of pairs of movable contacts and stationary contacts, each pair of movable contacts and stationary contacts may be placed in one waterproof capsule 5, i.e., one pair of contacts, and of course, a plurality of pairs of movable contacts and stationary contacts may be placed in one waterproof capsule, i.e., a plurality of contacts in one large waterproof capsule 5. The relay acts as a means for controlling the strong current with a weak current, which in this embodiment controls four pairs of contacts.
In the embodiment, the electromagnetic relay achieves the effects of omnibearing water resistance, dust resistance, electric leakage resistance and explosion resistance, so that the relay can be used in outdoor environments such as the wild, and the influence of precipitation on the relay is very small. Particularly, the scheme can greatly expand the use scene of the relay, so that the relay can be used in damp, precipitation and even water, thereby expanding the usable range of the controlled electric control device, such as controllability for the control device installed in water.
In one embodiment, the electromagnetic switch further comprises a control circuit comprising a rectifier bridge, a switching device.
The rectifier bridge is used for converting alternating current into direct current.
The switch device comprises a closing state and a conducting state, wherein the switch device is in the conducting state, the direct current is supplied to the coil in different voltage directions, the coil drives the magnet column to move upwards or downwards through electromagnetic force, the switch device is in the closing state, the direct current is disconnected from the coil, and the magnet column is attracted by ferromagnetic metal parts closer to the switch device and does not move any more.
The off state includes a first off state and the on state includes a first on state.
In the first conducting state, the switching device conducts the first electrode of the rectifier bridge to the first terminal of the coil 1 through a wire, and conducts the second electrode of the rectifier bridge to the second terminal of the coil 1 through a wire. In the first closed state, the switching means disconnect the power supply to the coil 1. When the switch device is in the first conductive state, the permanent magnet 2 moves towards the switch control device and the second ferromagnetic metal component 10, so that the pushing device pushes the movable contact piece of the switch control device, the movable contact piece of the switch control device is in contact with the static contact piece of the switch control device, and the permanent magnet 2 moves to a position close to the second ferromagnetic metal component 10 and is attracted by the second ferromagnetic metal component 10. When the switch device is in the first closing state, the second ferromagnetic metal component 10 attracts the permanent magnet 2 close to the second ferromagnetic metal component to stop the permanent magnet 2 at the position, so as to maintain the contact bias state of the movable contact and the static contact of the switch control device.
According to the above-described scheme, the first conduction state causes the permanent magnet 2 to move so that the movable contact is in contact with the static contact and biased to be close to the second ferromagnetic metal component 10, the first closing state cuts off the power of the coil 1, and according to the above-described scheme, the second ferromagnetic metal component 10 attracts the permanent magnet 2 through the magnetic force of pure iron and the permanent magnet, and the permanent magnet 2 is stopped at the position so as to maintain the state of the movable contact and the static contact in contact and biased.
In some versions of this embodiment, the off state further comprises a second off state and the on state further comprises a second on state. In the second conducting state, the switching device conducts the first electrode of the rectifier bridge to the second terminal of the coil 1 through a wire, and conducts the second electrode of the rectifier bridge to the first terminal of the coil 1 through a wire. In the second closed state, the switching means disconnect the power supply to the coil 1. In the second state of the switching device, the permanent magnet 2 moves towards the first ferromagnetic metal part 9, the pushing device is separated from the movable contact of the switching control device, the movable contact of the switching control device is separated from the static contact of the switching control device, and the permanent magnet 2 moves to a position close to the first ferromagnetic metal part 9 and is attracted by the first ferromagnetic metal part 9. In the second closed state of the switching device, the first ferromagnetic metal part 9 attracts the permanent magnet 2 close thereto to stop the permanent magnet 2 in place. According to the above-described configuration, the electromagnetic switch is provided in the on state of the switching device to turn off the switching device and power off the electric device, so that the permanent magnet 2 is separated from the second ferromagnetic metal member 10 in the second on state and moves toward the first ferromagnetic metal member 9, and preferably, the permanent magnet 2 is attracted to the first ferromagnetic metal member 9 to stop at the attracted position, and in the second off state, the permanent magnet 2 is attracted to the first ferromagnetic metal member 9 to stop at the position.
By this arrangement, as shown in fig. 1, in a first conductive state, the switching device conducts a first electrode (illustratively, the positive electrode) of the rectifier bridge to a first terminal of the coil 1 via a wire, and a second electrode (illustratively, the negative electrode) of the rectifier bridge to a second terminal of the coil 1 via a wire. As shown in fig. 3, in the second conductive state, the first electrode (e.g., an exemplary positive electrode) of the rectifier bridge is in conductive communication with the second terminal of the coil 1 via a wire, and the second electrode (e.g., an exemplary negative electrode) of the rectifier bridge is in conductive communication with the first terminal of the coil 1 via a wire. As shown in fig. 2 and 4, in the closed state, the switching device opens the first electrode (illustratively, the positive electrode) of the rectifier bridge such that the first terminal of coil 1 is connected to the negative electrode and the second terminal of coil 1 is connected to the negative electrode, thereby rendering coil 1 uncharged.
It will be appreciated that in one example illustration, the first conductive state is such that the first terminal of coil 1 illustratively is connected to the positive pole and the second terminal illustratively is connected to the negative pole. The second conductive state allows the first terminal of coil 1 to illustratively be connected to the negative pole and the second terminal to illustratively be connected to the positive pole. Thus, in both conducting states, the direction of the current flowing through the coil 1 is opposite, and on the basis of this, the coil 1 can move the permanent magnet 2 in different directions in different conducting states. Therefore, the invention realizes the state switching of the first conduction state, the second conduction state and the closing state, so that the permanent magnet 2 moves downwards only by supplying power to the coil 1 with a first current in the initial (exemplary as the first conduction state), the pushing device biases the switch control device, and the electric equipment can be understood to be electrified. In the middle (in an exemplary closing state, for example), the coil 1 is powered off, the permanent magnet 2 maintains the bias state of the pushing device on the switch control device, the conducting state of the movable contact and the static contact is maintained, and the electric equipment is kept in a powered-on state. After that (as in the second conduction state, for example) the coil 1 is powered by a second current to realize the upward movement of the permanent magnet 2, the permanent magnet 2 is reset, and the electric equipment is powered off. At the end (e.g. in the exemplary closed state) the coil 1 is de-energized, the permanent magnet 2 remains in the reset position, and the consumer remains de-energized.
In one exemplary illustration, as shown in fig. 1, in the first on state, the coil 1 excites a magnetic field with a first current, the direction of the magnetic field excited by the coil 1 is opposite to the direction of the magnetic field inherent to the permanent magnet 2, so that the coil 1 and the permanent magnet 2 repel each other, and the exciting magnetic field after the coil 1 is energized simultaneously magnetizes the first ferromagnetic metal component 9, the magnetization direction of the first ferromagnetic metal component 9 is the same as the direction of the magnetic field of the coil 1, the direction of the magnetic field excited by the permanent magnet 2 is opposite to the direction of the magnetic field excited by the permanent magnet 2, so that the first ferromagnetic metal component 9 repels each other with the permanent magnet 2, and the permanent magnet 2 moves downward in the exemplary direction of fig. 1.
As shown in fig. 2, in the first closed state, the coil 1 is powered off, the magnetic field excited by the coil 1 disappears, the permanent magnet 2 loses power for moving downwards, at this time, the permanent magnet 2 is closer to the second ferromagnetic metal part 10, the magnetic field excited by the permanent magnet 2 temporarily magnetizes the second ferromagnetic metal part 10, the magnetization direction of the second ferromagnetic metal part 10 is the same as the magnetic field direction of the permanent magnet 2, so that the second ferromagnetic metal part 10 and the permanent magnet 2 attract each other, and the permanent magnet 2 maintains the pressing state of the waterproof capsule 5 of the switch control device, that is, maintains the conducting state of the movable contact and the static contact.
When it is not necessary to maintain the conductive state of the movable contact and the stationary contact, as shown in fig. 3, in the second conductive state, the coil 1 is energized with a second current and then excites a magnetic field, the direction of the magnetic field excited by the coil 1 is the same as the direction of the inherent magnetic field of the permanent magnet 2, so that the coil 1 and the permanent magnet 2 are attracted to each other, and the exciting magnetic field after the coil 1 is energized simultaneously magnetizes the second ferromagnetic metal component 10, the magnetization direction of the second ferromagnetic metal component 10 is the same as the direction of the magnetic field of the coil 1, and is opposite to the direction of the magnetic field excited by the permanent magnet 2, so that the second ferromagnetic metal component 10 and the permanent magnet 2 repel each other, and the permanent magnet 2 moves upward in the exemplary direction of fig. 1.
As shown in fig. 4, in the first closed state, the coil 1 is powered off, the magnetic field excited by the coil 1 disappears, the permanent magnet 2 loses power for moving upwards, at this time, the permanent magnet 2 is closer to the first ferromagnetic metal part 9, the magnetic field excited by the permanent magnet 2 temporarily magnetizes the first ferromagnetic metal part 9, the magnetization direction of the first ferromagnetic metal part 9 is the same as the magnetic field direction of the permanent magnet 2, so that the first ferromagnetic metal part 9 and the permanent magnet 2 attract each other, and the permanent magnet 2 maintains the separation state of the waterproof capsule 5 of the switch control device, that is, maintains the disconnection state of the movable contact and the static contact.
In a specific example of such an embodiment, the first switching device 11 comprises a first live wire switch comprising oppositely arranged moving and stationary contacts, a first neutral wire switch comprising oppositely arranged moving and stationary contacts, and a first actuating member configured to switch on the contacted switch by contact biasing the moving and stationary contacts of the contacted switch with one of the first live wire switch and the first neutral wire switch.
The second switching device 12 includes a second live wire switch including a movable contact and a stationary contact disposed opposite to each other, a second neutral wire switch including a movable contact and a stationary contact disposed opposite to each other, and a second actuating member configured to turn on the contacted switch by contact biasing the movable contact and the stationary contact of the contacted switch with one of the second live wire switch and the second neutral wire switch.
The connecting wire is configured to connect the first terminal of the coil 1 with one contact of the first live wire switch and one contact of the first neutral wire switch, respectively, and the second terminal of the coil 1 with one contact of the second live wire switch and one contact of the second neutral wire switch, respectively. And the first electrode of the rectifier bridge is respectively connected with the other contact piece of the first live wire switch and the other contact piece of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the other contact piece of the first zero wire switch and the other contact piece of the second zero wire switch.
The first switching device 11 is configured to include two states of a live wire conduction state and a neutral wire conduction state, and the second switching device 12 is configured to include two states of a live wire conduction state and a neutral wire conduction state. The switching device is in the first conducting state, the first switching device 11 is in a live wire conducting state, the first electrode of the rectifier bridge is conducted with the first wiring terminal of the coil 1 through a wire, the second switching device 12 is in a zero line conducting state, and the second electrode of the rectifier bridge is conducted with the second wiring terminal of the coil 1 through a wire. The switching device is in the second conducting state, the first switching device 11 is in a zero line conducting state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil 1 through a wire, the second switching device 12 is in a live line conducting state, and the first electrode of the rectifier bridge is conducted with the second wiring end of the coil 1 through a wire. When the switching device is in the first closed state, the first switching device 11 is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, and the second switching device 12 is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. When the switching device is in the second closed state, the first switching device 11 is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, and the second switching device 12 is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. According to the solution, the switching device can have the state, which is implemented using the first switching device 11 and the second switching device 12, i.e. by the cooperation of two sets of contacts of two switching devices each.
Preferably, the connecting wire is configured to connect the second terminal of the coil 1 with the stationary contact of the second live wire switch and the stationary contact of the second neutral wire switch, respectively, and the first terminal of the coil 1 with the stationary contact of the first live wire switch and the stationary contact of the first neutral wire switch, respectively. And the first electrode of the rectifier bridge is respectively connected with the movable contact of the first live wire switch and the movable contact of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the movable contact of the first zero wire switch and the movable contact of the second zero wire switch.
According to the scheme, the control circuit can solve the problem that the same electric equipment needs to be powered forward and backward at different times, so that the control circuit can be used as an independent technical scheme for other scenes except the invention, particularly for scenes needing multiple conducting states, the control circuit has more state combinations, and more complex circuit control can be realized.
In a specific example of embodiment, according to the solution, a first specific implementation is given for the specific actuation member for the purpose described above. As shown in fig. 5, the first switching device 11 and the first actuating member are mounted in a housing, the first actuating member comprising a first vertical bar 13 and a first elastic element.
The first vertical rod 13 is arranged on one side of the shell, the first transverse rod 14 and the first transverse rod 15 are arranged at different heights of the first vertical rod 13, and the first end part of the first vertical rod extends out of the shell from the inside of the shell.
The first elastic member 16 is disposed at the second end of the first vertical rod 13, the first elastic member 16 is configured to press the first vertical rod 13 to compress the first elastic member 16, so that the first cross rod 14 contacts and biases the movable contact of the first live wire switch, the movable contact of the first live wire switch contacts with the static contact of the first live wire switch, the second cross rod 15 is separated from the movable contact of the first neutral wire switch, and the first switching device is in a live wire conducting state. Pressing along the vertical rod is stopped to recover the first elastic piece 16, the second first cross rod 15 is contacted with the movable contact piece of the first zero line switch in a biased manner, the movable contact piece of the first zero line switch is contacted with the static contact piece of the first zero line switch, the first cross rod 14 is separated from the movable contact piece of the first live line switch, and the first switching device is in a zero line conducting state. Preferably, the elastic element can be implemented in the present invention using a spring, in particular a compression spring.
Preferably, the first cross rod 14 and the second cross rod 15 enclose a containing space with the first vertical rod 13, the vertical distance between the first cross rod 14 and the second cross rod 15 is a first height, the first live wire switch and the first neutral wire switch are arranged on one side of the shell opposite to one side where the first vertical rod 13 is located, the vertical arrangement height of the first live wire switch and the first neutral wire switch on the side where the first live wire switch and the first neutral wire switch are arranged is a second height, the first live wire switch and the first neutral wire switch are arranged opposite to the containing space, and the second height is larger than the first height. The movable contact piece of the first live wire switch is higher than the static contact piece of the first live wire switch in the vertical position, and the movable contact piece of the first zero wire switch is lower than the static contact piece of the first zero wire switch in the vertical position. The movable contact piece of the first live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length, and the movable contact piece of the first neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length. According to the solution, the structure of the actuating member for switching the state of the switch is easy to realize and has compact effect, and in particular, the structure shows that the actuating member has the capability of being sensitively contacted with the contact piece to switch the state.
In some embodiments, as shown in fig. 6, the second switching device 12 and a second actuating member are mounted in the housing, the second actuating member comprising a second vertical bar 19 and a second spring 22.
The second vertical rod 19 is arranged on one side of the shell, the first transverse rod 20 and the second transverse rod 21 are arranged at different heights of the second vertical rod 19, and the first end part of the second vertical rod extends out of the shell from the inside of the shell.
The second elastic member 22 is disposed at the second end of the second vertical rod 19, the second elastic member 22 is configured to press the second vertical rod 19 to compress the second elastic member 22, so that the first second cross rod 20 contacts and biases the movable contact of the second live wire switch, the movable contact of the second live wire switch contacts the static contact of the second live wire switch, the second cross rod 21 is separated from the movable contact of the second neutral wire switch, and the second switching device is in a live wire conducting state. Pressing along the vertical rod is stopped to recover the second elastic piece 22, the second cross rod 21 is contacted with the movable contact piece of the second zero line switch, the movable contact piece of the second zero line switch is contacted with the static contact piece of the second zero line switch, the first cross rod 20 is separated from the movable contact piece of the second live line switch, and the second switching device is in a zero line conducting state.
Preferably, the first and second cross bars 20 and 21 and the second vertical rod 19 enclose a containing space, the vertical distance between the first and second cross bars 20 and 21 is a first height, the second live wire switch and the first neutral wire switch are arranged on one side of the shell opposite to one side of the second vertical rod 19, the vertical arrangement height of the second live wire switch and the second neutral wire switch on the side of the shell is a second height, the second live wire switch and the second neutral wire switch are arranged opposite to the containing space, and the second height is larger than the first height.
The movable contact piece of the second live wire switch is higher than the static contact piece of the second live wire switch in the vertical position, and the movable contact piece of the second zero wire switch is lower than the static contact piece of the second zero wire switch in the vertical position. The movable contact piece of the second live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space, and the movable contact piece of the second neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space. According to the solution, the structure of the actuating member for switching the state of the switch is easy to realize and has compact effect, and in particular, the structure shows that the actuating member has the capability of being sensitively contacted with the contact piece to switch the state.
In this example, the switching device is in a first conductive state: the first switching means 11 is in a live wire conducting state, the first electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, the second switching means 12 is in a neutral wire conducting state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. As shown in fig. 1, specifically to the first switch device 11 and the second switch device 12, the first vertical rod 13 of the first switch device 11 is pressed, for example, manually or by a machine control means, the first vertical rod 13 biases the first elastic member 16, so that the first cross rod 14 biases the movable contact piece of the first live wire switch (from top to bottom), the movable contact piece of the first live wire switch contacts with the static contact piece of the first live wire switch, and meanwhile, the second cross rod 15 is separated from the movable contact piece of the first neutral wire switch, and the movable contact piece of the first neutral wire switch is separated from the static contact piece of the first neutral wire switch, so that the first switch device 11 is in a live wire conducting state. The second vertical rod 19 of the second switch device 12 is at a reset position, the second vertical rod 19 does not bias the second elastic piece 22, so that the first cross rod 20 is separated from the movable contact piece of the second live wire switch, the movable contact piece of the second live wire switch is separated from the static contact piece of the second live wire switch, meanwhile, the second cross rod 21 biases the movable contact piece (pressing from bottom to top) of the second zero wire switch, and the movable contact piece of the second zero wire switch is in contact with the static contact piece of the second zero wire switch, so that the second switch device 12 is in a zero wire conduction state.
The switching device is in a second conductive state: the first switching means 11 is in a neutral conductive state, the second electrode of the rectifier bridge is conductive via a wire to the first terminal of the coil 1, the second switching means 12 is in a live conductive state, and the first electrode of the rectifier bridge is conductive via a wire to the second terminal of the coil 1. As shown in fig. 3, in particular to the first switch device 11 and the second switch device 12, the second vertical rod 19 of the second switch device 12 is pressed, for example, manually or by a machine control means, the second vertical rod 19 biases the second elastic member 22, so that the first second cross rod 20 biases the movable contact piece of the second live wire switch (from top to bottom), the movable contact piece of the second live wire switch contacts the stationary contact piece of the second live wire switch, and at the same time, the second cross rod 21 is separated from the movable contact piece of the second neutral wire switch, and the movable contact piece of the second neutral wire switch is separated from the stationary contact piece of the second neutral wire switch, so that the second switch device 12 is in a live wire conducting state. The first vertical rod 13 of the first switch device 11 is at a reset position, the first vertical rod 13 does not bias the first elastic piece 16, then the first cross rod 14 is separated from the movable contact piece of the first live wire switch, the movable contact piece of the first live wire switch is separated from the static contact piece of the first live wire switch, meanwhile, the second cross rod 15 biases the movable contact piece of the first zero wire switch (pressing from bottom to top), and the movable contact piece of the first zero wire switch is in contact with the static contact piece of the first zero wire switch, so that the first switch device 11 is in a zero wire conduction state.
The switching device is in the off state: the first switching means 11 is placed in a neutral-wire conducting state, the second electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, the second switching means 12 is placed in a neutral-wire conducting state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. As shown in fig. 2 and 4, specifically to the first switch device 11 and the second switch device 12, the first vertical rod 13 of the first switch device 11 is in a reset position, the first vertical rod 13 does not bias the first elastic member 16, so that the first cross rod 14 is separated from the moving contact of the first live wire switch, the moving contact of the first live wire switch is separated from the static contact of the first live wire switch, meanwhile, the second cross rod 15 biases the moving contact of the first neutral wire switch (applies pressure from bottom to top), and the moving contact of the first neutral wire switch is in contact with the static contact of the first neutral wire switch, so that the first switch device 11 is in a neutral wire conducting state. The second vertical rod 19 of the second switching device 12 is at a reset position, the second vertical rod 19 does not bias the second elastic piece 22, then the first cross rod 20 is separated from the movable contact piece of the second live wire switch, the movable contact piece of the second live wire switch is separated from the static contact piece of the second live wire switch, meanwhile, the second cross rod 21 biases the movable contact piece (pressing from bottom to top) of the second zero wire switch, and the movable contact piece of the second zero wire switch is in contact with the static contact piece of the second zero wire switch, so that the second switching device 12 is in a zero wire conduction state.
In another specific example of embodiment, according to the solution, a second specific implementation is given for the specific actuation member for the purpose described above. As shown in fig. 7, the first switching device 11 and the first actuating member are installed in a housing, and the first actuating member includes a first support bar 23, a first seesaw bar 24, a first push bar 25, and a first elastic member 26.
The first support bar 23 is fixed to the bottom plate of the housing.
The first seesaw bar 24 includes a first end and a second end, the first seesaw bar 24 is supported by the first support bar 23 on the first seesaw bar 24 along the length of the first seesaw bar 24, the first seesaw bar 24 can seesaw around the support point, the seesaw includes upward seesaw movement and downward seesaw movement, the first end of the first seesaw bar 24 is in one of upward seesaw movement and downward seesaw movement, and the second end of the seesaw bar is in the other seesaw movement different from the one in which the first end is. Preferably, the first support bar 23 is hinged at an upper end to the first seesaw bar 24.
The first pressing lever 25 includes a first end and a second end, the first end of the first pressing lever 25 extends from the inside of the housing to the outside of the housing, and the second end of the first pressing lever 25 is connected to the first end of the first seesaw lever 24.
The first elastic member 26 includes a first end and a second end, the first end of the first elastic member 26 is fixed on the top plate of the housing, and the second end of the first elastic member 26 is connected with the second end of the first seesaw lever 24.
Pressing the first pressing rod 25 causes the first end of the first seesaw moving rod 24 to move downward, the second end of the first seesaw moving rod 24 to move upward, the first elastic member 26 is compressed, the first end of the first seesaw moving rod 24 contacts and biases the moving contact of the first live wire switch, the moving contact of the first live wire switch contacts with the static contact of the first live wire switch, and the second end of the first seesaw moving rod 24 is separated from the moving contact of the first neutral wire switch. Stopping pressing the vertical rod restores the first elastic member 26, the second end of the first seesaw moving rod 24 is moved downward, the first end of the first seesaw moving rod 24 is moved upward, the second end of the first seesaw moving rod 24 is contacted with the movable contact piece of the first zero line switch in a biasing manner, the movable contact piece of the first zero line switch is contacted with the static contact piece of the first zero line switch, and the first end of the first seesaw moving rod 24 is separated from the movable contact piece of the first live line switch.
In some aspects, as shown in fig. 8, the second switching device 12 and the second actuating member are installed in a housing, and the second actuating member includes a second support bar 27, a second seesaw bar 28, a second push bar 29, and a second elastic member 30.
The second support bar 27 is fixed to the floor of the housing.
The second seesaw moving rod 28 comprises a first end and a second end, the second seesaw moving rod 28 is supported by the second supporting rod 27 on the second seesaw moving rod 28 in the length direction of the second seesaw moving rod 28, the second seesaw moving rod 28 can move around the supporting point, the second seesaw moving comprises upward seesaw moving and downward seesaw moving, the first end of the second seesaw moving rod 28 is in one of upward seesaw moving and downward seesaw moving, and the second end of the second seesaw moving rod 28 is in the other seesaw moving different from the one seesaw moving in which the first end is located. Preferably, the second support bar 27 is hinged at an upper end to the second seesaw bar 28.
The second pressing rod 29 includes a first end and a second end, the first end of the second pressing rod 29 extends from the inside of the housing to the outside of the housing, and the second end of the second pressing rod 29 is connected to the first end of the second seesaw rod 28.
The second elastic member 30 includes a first end and a second end, the first end of the second elastic member 30 is fixed on the top plate of the housing, and the second end of the second elastic member 30 is connected with the second end of the second seesaw lever 28.
Pressing the second pressing rod 29 causes the first end of the second seesaw moving rod 28 to move downward, the second end of the second seesaw moving rod 28 to move upward, the second elastic member 30 is compressed, the first end of the second seesaw moving rod 28 contacts and biases the moving contact of the second live wire switch, the moving contact of the second live wire switch contacts with the static contact of the second live wire switch, and the second end of the second seesaw moving rod 28 is separated from the moving contact of the second neutral wire switch. Stopping pressing the vertical rod restores the second elastic member 30, the second end of the second seesaw moving rod 28 is moved downward, the first end of the second seesaw moving rod 28 is moved upward, the second end of the second seesaw moving rod 28 contacts and biases the moving contact of the second zero line switch, the moving contact of the second zero line switch contacts with the static contact of the second zero line switch, and the first end of the second seesaw moving rod 28 is separated from the moving contact of the second live line switch.
According to the solution, the structure of the actuating member for switching the state of the switch is easy to realize and has compact effect, and in particular, the structure shows that the actuating member has the capability of being sensitively contacted with the contact piece to switch the state. In the scheme, the state of the switching device is basically consistent with the previous example by the structural implementation principle of the present example.
In this example, the switching device is in a first conductive state: the first switching means 11 is in a live wire conducting state, the first electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, the second switching means 12 is in a neutral wire conducting state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. Specifically, to the first switch device 11 and the second switch device 12, the first pressing rod 25 of the first switch device 11 is pressed, for example, manually or by a machine control means, the first pressing rod 25 biases the first end of the first seesaw moving rod 24, then the first end of the first seesaw moving rod 24 biases the moving contact piece of the first live wire switch (pressing from top to bottom), the moving contact piece of the first live wire switch contacts with the static contact piece of the first live wire switch, at the same time, the second end of the first seesaw moving rod 24 is seesaw moved, the first elastic piece 26 is compressed upwards, the second end of the first seesaw moving rod 24 is separated from the moving contact piece of the first neutral wire switch, and the moving contact piece of the first neutral wire switch is separated from the static contact piece of the first neutral wire switch, so that the first switch device 11 is in a live wire conducting state. The second pressing rod 29 of the second switching device 12 is at a reset position, the first end of the second seesaw moving rod 28 is separated from the moving contact of the second live wire switch, the moving contact of the second live wire switch is separated from the static contact of the second live wire switch, the second elastic member 30 is extended downwards, the second end of the second seesaw moving rod 28 is biased downwards to the moving contact of the second zero wire switch (pressing from top to bottom), and the moving contact of the second zero wire switch is contacted with the static contact of the second zero wire switch, so that the second switching device 12 is in a zero wire conducting state.
The switching device is in a second conductive state: the first pressing rod 25 of the first switching device 11 is at a reset position, the first end of the first seesaw moving rod 24 is separated from the moving contact piece of the first live wire switch, the moving contact piece of the first live wire switch is separated from the static contact piece of the first live wire switch, the first elastic piece 26 stretches downwards, the second end of the first seesaw moving rod 24 biases the moving contact piece of the first zero wire switch downwards (pressing from top to bottom), and the moving contact piece of the first zero wire switch is in contact with the static contact piece of the first zero wire switch, so that the first switching device 11 is in a zero wire conducting state. The second pressing lever 29 of the second switching device 12 is pressed, for example, manually or by a machine control means, the second pressing lever 29 biases the first end of the second seesaw lever 28, and then the first end of the second seesaw lever 28 biases the movable contact of the second live wire switch (pressing from top to bottom), the movable contact of the second live wire switch contacts the stationary contact of the second live wire switch, and at the same time, the second end of the second seesaw lever 28 is seesaw-moved, the second elastic member 30 is compressed upward, the second end of the second seesaw lever 28 is separated from the movable contact of the second neutral wire switch, and the movable contact of the second neutral wire switch is separated from the stationary contact of the second neutral wire switch, so that the second switching device 12 is in a live wire conducting state.
The switching device is in the off state: the first switching means 11 is placed in a neutral-wire conducting state, the second electrode of the rectifier bridge is conducted with the first terminal of the coil 1 through a wire, the second switching means 12 is placed in a neutral-wire conducting state, and the second electrode of the rectifier bridge is conducted with the second terminal of the coil 1 through a wire. Specifically to the first switch device 11 and the second switch device 12, the first pressing rod 25 of the first switch device 11 is at a reset position, the first end of the first seesaw moving rod 24 is separated from the moving contact piece of the first live wire switch, the moving contact piece of the first live wire switch is separated from the static contact piece of the first live wire switch, the first elastic piece 26 stretches downwards, the second end of the first seesaw moving rod 24 biases the moving contact piece of the first zero wire switch downwards (applies pressure from top to bottom), and the moving contact piece of the first zero wire switch is in contact with the static contact piece of the first zero wire switch, so that the first switch device 11 is in a zero wire conducting state. The second pressing rod 29 of the second switching device 12 is at a reset position, the first end of the second seesaw moving rod 28 is separated from the moving contact piece of the second live wire switch, the moving contact piece of the second live wire switch is separated from the static contact piece of the second live wire switch, the second elastic piece 30 stretches downwards, the second end of the second seesaw moving rod 28 biases the moving contact piece of the second zero wire switch downwards (applies pressure from top to bottom), and the moving contact piece of the second zero wire switch is in contact with the static contact piece of the second zero wire switch, so that the second switching device 12 is in a zero wire conducting state.
As the preferable scheme of each scheme, the first live wire switch comprises a first live wire waterproof capsule 5 switch, the first live wire waterproof capsule 5 switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact and the static contact are arranged in the waterproof rubber sleeve, and the movable contact and the static contact are fixed on the capsule base. The first zero line switch comprises a first zero line waterproof capsule 5 switch, the first zero line waterproof capsule 5 switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base. The waterproof capsule of second live wire 5 switches of second live wire, and waterproof capsule of second live wire 5 switches include the capsule base and are fixed to the waterproof gum cover on the capsule base, and movable contact and static contact set up in waterproof gum cover's inside, and movable contact and static contact are fixed to on the capsule base. The second zero line switch comprises a second zero line waterproof capsule 5 switch, the second zero line waterproof capsule 5 switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the present invention, the term "and/or" describes an association relationship of an association object, which means that there may be three relationships, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one" means one or more; "at least one of a and B", similar to "a and/or B", describes an association relationship of an association object, meaning that there may be three relationships, for example, at least one of a and B may represent: a exists alone, A and B exist together, and B exists alone.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (19)
1. An electromagnetic switch, comprising
A coil for generating electromagnetic force;
the permanent magnet is arranged in the through hole of the coil, and magnetic force generated by electrifying the coil drives the permanent magnet to axially move in the through hole of the coil;
a first ferromagnetic metal member disposed on a first side of the permanent magnet in an axial direction;
the switch control device is arranged on the second side of the permanent magnet in the axial direction and comprises a movable contact piece and a static contact piece which are oppositely arranged;
the pushing device is arranged on one side of the permanent magnet, facing the switch control device, and when the permanent magnet moves towards the switch control device, the pushing device can bias the movable contact piece to be in contact with the static contact piece;
the switch control device is arranged between the permanent magnet and the second ferromagnetic metal part, the movable contact piece and the static contact piece are contacted and biased when the permanent magnet moves, and the second ferromagnetic metal part attracts the permanent magnet close to the switch control device to enable the permanent magnet to stop at the position and maintain the state of the contact and bias of the movable contact piece and the static contact piece.
2. The electromagnetic switch of claim 1, wherein the switch control means comprises a waterproof capsule comprising a capsule base and a waterproof gum cover secured to the capsule base, the movable and stationary contacts being disposed inside the waterproof gum cover, the movable and stationary contacts being secured to the capsule base.
3. The electromagnetic switch of claim 1, further comprising a control circuit, the control circuit comprising
The rectifier bridge is used for converting alternating current into direct current;
the switch device comprises a conducting state and a closing state, the switch device is in the conducting state, the direct current is supplied to the coil in different voltage directions, the coil drives the permanent magnet to ascend or descend through electromagnetic force, the switch device is in the closing state, the direct current is disconnected from the coil, and the permanent magnet is attracted by a ferromagnetic metal part closer to the switch device to stop at the position.
4. The electromagnetic switch of claim 3, wherein the off state comprises a first off state and the on state comprises a first on state;
in the first conduction state, the switching device conducts a first electrode of the rectifier bridge with a first wiring terminal of the coil through a wire, and conducts a second electrode of the rectifier bridge with a second wiring terminal of the coil through a wire; the first electrode and the second electrode may be understood as one of which is a positive electrode and the other of which is a negative electrode;
In the first closed state, the switching device turns off the power supply to the coil.
5. The electromagnetic switch of claim 4, wherein the off state further comprises a second off state and the on state further comprises a second on state;
in the second conduction state, the switching device conducts the first electrode of the rectifier bridge with the second wiring terminal of the coil through a wire, and conducts the second electrode of the rectifier bridge with the first wiring terminal of the coil through a wire;
in the second closed state, the switching device turns off the power supply to the coil.
6. An electromagnetic switch according to claim 4 or 5, wherein the switching means comprises
A first switching device including a first live wire switch including a movable contact and a stationary contact disposed opposite to each other, a first neutral wire switch including a movable contact and a stationary contact disposed opposite to each other, and a first actuating member configured to conduct the contacted switch by contact-biasing the movable contact and the stationary contact of the contacted switch with one of the first live wire switch and the first neutral wire switch;
A second switching device including a second live wire switch including a movable contact and a stationary contact disposed opposite to each other, a second neutral wire switch including a movable contact and a stationary contact disposed opposite to each other, and a second actuating member configured to conduct the contacted switch by contact-biasing the movable contact and the stationary contact of the contacted switch with one of the second live wire switch and the second neutral wire switch; and
a connecting wire configured to connect a first terminal of the coil with one contact of the first live wire switch and one contact of the first neutral wire switch, respectively, and a second terminal of the coil with one contact of the second live wire switch and one contact of the second neutral wire switch, respectively; and the first electrode of the rectifier bridge is respectively connected with the other contact piece of the first live wire switch and the other contact piece of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the other contact piece of the first zero wire switch and the other contact piece of the second zero wire switch.
7. The electromagnetic switch of claim 6, wherein the connecting wire is configured to connect the second terminal of the coil with the stationary contact of the second live wire switch and the stationary contact of the second neutral wire switch, respectively, and the first terminal of the coil with the stationary contact of the first live wire switch and the stationary contact of the first neutral wire switch, respectively; and the first electrode of the rectifier bridge is respectively connected with the movable contact of the first live wire switch and the movable contact of the second live wire switch, and the second electrode of the rectifier bridge is respectively connected with the movable contact of the first zero wire switch and the movable contact of the second zero wire switch.
8. The electromagnetic switch of claim 7, wherein the first switching device is configured to include two states, a live conducting state and a neutral conducting state, and the second switching device is configured to include two states, a live conducting state and a neutral conducting state;
the switching device is in the first conduction state, the first switching device is in a live wire conduction state, a first electrode of the rectifier bridge is conducted with a first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and a second electrode of the rectifier bridge is conducted with a second wiring end of the coil through a wire;
the switching device is in the second conduction state, the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a live wire conduction state, and the first electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
the switching device is in a zero line conduction state, the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
The switching device is in the second closing state, the first switching device is in a zero line conducting state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conducting state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire.
9. The electromagnetic switch of claim 6, wherein the first switching device and first actuating member are mounted in a housing, the first actuating member comprising
The first vertical rod is arranged on one side of the shell, a first cross rod I and a second cross rod II are arranged at different heights of the first vertical rod, and the first end part of the first vertical rod extends out of the shell from the inside of the shell;
the first elastic piece is arranged at the second end part of the first vertical rod and is configured to press the first vertical rod to compress the first elastic piece, so that the first cross rod I contacts and biases the movable contact piece of the first live wire switch, the movable contact piece of the first live wire switch contacts with the static contact piece of the first live wire switch, and the second cross rod II is separated from the movable contact piece of the first zero wire switch; stopping pressing along the vertical rod to recover the first elastic piece, enabling the second cross rod to contact and bias the movable contact piece of the first zero line switch, enabling the movable contact piece of the first zero line switch to contact with the static contact piece of the first zero line switch, and enabling the first cross rod to be separated from the movable contact piece of the first live line switch.
10. The electromagnetic switch of claim 9, wherein the first cross bar and the second cross bar enclose a receiving space with a first vertical bar, a vertical distance between the first cross bar and the second cross bar is a first height, the first live wire switch and the first neutral wire switch are arranged on one side of the housing opposite to one side of the first vertical bar, a vertical arrangement height of the first live wire switch and the first neutral wire switch on one side of the housing is a second height, the first live wire switch and the first neutral wire switch are arranged opposite to the receiving space, and the second height is greater than the first height;
the movable contact piece of the first live wire switch is higher than the static contact piece of the first live wire switch in the vertical position, and the movable contact piece of the first zero wire switch is lower than the static contact piece of the first zero wire switch in the vertical position;
the movable contact piece of the first live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length, and the movable contact piece of the first neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space in the transverse length.
11. The electromagnetic switch of claim 6, wherein the first switching device and first actuating member are mounted in a housing, the first actuating member comprising
The first supporting rod is fixed on the bottom plate of the shell;
a first teeter lever including a first end and a second end, the first teeter lever being supported by the first support bar at a first teeter lever length direction for the first teeter lever, the first teeter lever being capable of teeter about the support point, the teeter lever including one of teeter and teeter, the first end of the first teeter lever being at one of teeter and teeter, the second end of the teeter lever being at another teeter different from the one at which the first end is at;
the first pressing rod comprises a first end and a second end, the first end part of the first pressing rod extends out of the shell from the inside of the shell, and the second end of the first pressing rod is connected with the first end of the first seesaw rod;
the first elastic piece comprises a first end and a second end, the first end of the first elastic piece is fixed on the top plate of the shell, and the second end of the first elastic piece is connected with the second end of the first seesaw rod;
pressing the first pressing rod to enable the first end of the first lifting rod to lift downwards, enabling the second end of the first lifting rod to lift upwards, enabling the first end of the first lifting rod to contact and bias the movable contact piece of the first live wire switch, enabling the movable contact piece of the first live wire switch to contact with the static contact piece of the first live wire switch, and enabling the second end of the first lifting rod to be separated from the movable contact piece of the first zero wire switch; and stopping pressing the vertical rod to enable the first elastic piece to recover, enabling the second end of the first seesaw moving rod to move downwards, enabling the first end of the first seesaw moving rod to move upwards, enabling the second end of the first seesaw moving rod to contact with a movable contact piece of the first zero line switch in a biased manner, enabling the movable contact piece of the first zero line switch to be in contact with a static contact piece of the first zero line switch, and enabling the first end of the first seesaw moving rod to be separated from the movable contact piece of the first live line switch.
12. The electromagnetic switch of claim 6, wherein the first live wire switch comprises a first live wire waterproof capsule switch, the first live wire waterproof capsule switch comprises a capsule base and a waterproof gum cover fixed to the capsule base, the movable contact and the stationary contact are arranged inside the waterproof gum cover, and the movable contact and the stationary contact are fixed to the capsule base; the first zero line switch comprises a first zero line waterproof capsule switch, the first zero line waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base.
13. The electromagnetic switch of claim 6, wherein the second switching device and second actuating member are mounted in a housing, the second actuating member comprising
The first vertical rod is arranged on one side of the shell, a first transverse rod and a second transverse rod are arranged at different heights of the second vertical rod, and the first end part of the second vertical rod extends out of the shell from the inside of the shell;
the second elastic piece is arranged at the second end part of the second vertical rod and is configured to press the second vertical rod to compress the second elastic piece, so that the first cross rod is contacted with and biased against the movable contact piece of the second live wire switch, the movable contact piece of the second live wire switch is contacted with the static contact piece of the second live wire switch, and the second cross rod is separated from the movable contact piece of the second zero wire switch; stopping pressing along the vertical rod to recover the second elastic piece, enabling the second cross rod to be in contact with and bias the movable contact piece of the second zero line switch, enabling the movable contact piece of the second zero line switch to be in contact with the static contact piece of the second zero line switch, and enabling the first cross rod to be separated from the movable contact piece of the second live line switch.
14. The electromagnetic switch of claim 13, wherein the first and second cross bars and the second vertical bar enclose a receiving space, a vertical distance between the first and second cross bars is a first height, the second live wire switch and the first neutral wire switch are disposed on a side of the housing opposite to a side of the second vertical bar, a vertical arrangement of the second live wire switch and the second neutral wire switch is a second height, the second live wire switch and the second neutral wire switch are disposed opposite to the receiving space, and the second height is greater than the first height;
the movable contact piece of the second live wire switch is higher than the static contact piece of the second live wire switch in the vertical position, and the movable contact piece of the second zero wire switch is lower than the static contact piece of the second zero wire switch in the vertical position;
the movable contact piece of the second live wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space, and the movable contact piece of the second neutral wire switch can enable one end of the movable contact piece, which faces the accommodating space, to be located in the accommodating space.
15. The electromagnetic switch of claim 6, wherein the second switching device and second actuating member are mounted in a housing, the second actuating member comprising
The second supporting rod is fixed on the bottom plate of the shell;
the second seesaw moving rod comprises a first end and a second end, the second seesaw moving rod is supported by the second supporting rod in the length direction of the second seesaw moving rod, the second seesaw moving rod can seesaw around the supporting point, the second seesaw moving rod comprises upward seesaw moving and downward seesaw moving, the first end of the second seesaw moving rod is in one of upward seesaw moving and downward seesaw moving, and the second end of the second seesaw moving rod is in the other seesaw moving different from the one in which the first end is located;
the second pressing rod comprises a first end and a second end, the first end part of the second pressing rod extends out of the shell from the inside of the shell, and the second end of the second pressing rod is connected with the first end of the second seesaw rod;
the first end of the second elastic piece is fixed on the top plate of the shell, and the second end of the second elastic piece is connected with the second end of the second seesaw rod;
pressing the second pressing rod to enable the first end of the second lifting rod to lift downwards, enabling the second end of the second lifting rod to lift upwards, enabling the first end of the second lifting rod to contact and bias the movable contact piece of the second live wire switch, enabling the movable contact piece of the second live wire switch to contact with the static contact piece of the second live wire switch, and enabling the second end of the second lifting rod to be separated from the movable contact piece of the second zero wire switch; and stopping pressing the vertical rod to enable the second elastic piece to recover, enabling the second end of the second seesaw moving rod to move downwards, enabling the first end of the second seesaw moving rod to move upwards, enabling the second end of the second seesaw moving rod to be in contact with a movable contact piece of the second zero line switch in a biasing mode, enabling the movable contact piece of the second zero line switch to be in contact with a static contact piece of the second zero line switch, and enabling the first end of the second seesaw moving rod to be separated from the movable contact piece of the second live line switch.
16. The electromagnetic switch of claim 6, wherein the second live wire switch comprises a second live wire waterproof capsule switch, the second live wire waterproof capsule switch comprises a capsule base and a waterproof gum cover fixed to the capsule base, the movable contact and the stationary contact are arranged inside the waterproof gum cover, and the movable contact and the stationary contact are fixed to the capsule base; the second zero line switch comprises a second zero line waterproof capsule switch, the second zero line waterproof capsule switch comprises a capsule base and a waterproof rubber sleeve fixed on the capsule base, the movable contact piece and the static contact piece are arranged in the waterproof rubber sleeve, and the movable contact piece and the static contact piece are fixed on the capsule base.
17. A switch control method is characterized by comprising the following steps of
Placing the switching device in a first conductive state, the permanent magnet moving towards the switching control device and the second ferromagnetic metal component;
the pushing device is used for responding to the movement of the permanent magnet, contacting and pushing the movable contact piece of the switch control device, so that the movable contact piece of the switch control device is contacted with the static contact piece of the switch control device, and the permanent magnet moves to a position close to the second ferromagnetic metal part and is attracted by the second ferromagnetic metal part;
the switch device is in a first closing state, the second ferromagnetic metal component attracts the permanent magnet close to the switch device to stop the permanent magnet at the position, and the movable contact and the static contact of the switch control device are kept in a contact bias state.
18. The switch control method of claim 17, further comprising
The switch device is in a second conduction state, the permanent magnet moves towards the first ferromagnetic metal component, the pushing device is separated from the movable contact piece of the switch control device, the movable contact piece of the switch control device is separated from the static contact piece of the switch control device, and the permanent magnet moves to a position close to the first ferromagnetic metal component and is attracted by the first ferromagnetic metal component;
the switch device is placed in a second closed state, and the first ferromagnetic metal component attracts the permanent magnet close to the switch device to stop the permanent magnet at the position.
19. The switch control method of claim 17, wherein,
the switching device is in a first conductive state: the first switching device is in a live wire conduction state, a first electrode of the rectifier bridge is conducted with a first wiring end of the coil through a wire, the second switching device is in a zero wire conduction state, and a second electrode of the rectifier bridge is conducted with a second wiring end of the coil through a wire;
the switching device is in a second conductive state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a live line conduction state, and the first electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
The switching device is in a first closed state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire;
the switching device is in a second closed state: the first switching device is in a zero line conduction state, the second electrode of the rectifier bridge is conducted with the first wiring end of the coil through a wire, the second switching device is in a zero line conduction state, and the second electrode of the rectifier bridge is conducted with the second wiring end of the coil through a wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210984331.8A CN116110745A (en) | 2022-08-17 | 2022-08-17 | Electromagnetic switch and switch control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210984331.8A CN116110745A (en) | 2022-08-17 | 2022-08-17 | Electromagnetic switch and switch control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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