CN216252500U

CN216252500U - Multi-coil eddy current driving device

Info

Publication number: CN216252500U
Application number: CN202122917753.7U
Authority: CN
Inventors: 欧阳晋武; 张鹏; 任蔚
Original assignee: Shaanxi Qinyu Electrical Appliances Co ltd
Current assignee: Shaanxi Qinyu Electrical Appliances Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-08
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a multi-coil eddy current driving device, which comprises a base, coils and a repulsion plate, wherein the coils are arranged on the base; at least two groups of coils are fixed on the top of the base, and the coils are connected in parallel with a power supply; the repulsion plate is horizontally arranged above the coil, a push rod is vertically arranged on the repulsion plate, and the push rod is detachably connected with the repulsion plate. The coil is provided with at least two groups, and a plurality of groups of coils are connected in parallel with the same power supply, when the coil is electrified, large-area induction eddy current can be generated to push the repulsion plate to act, so that the coil is not required to be additionally increased in number of turns compared with the traditional single coil driving under the condition of ensuring that the driving force is increased, the integral volume is reduced, the coil is convenient to install in a narrow area and is matched with other mechanisms for use, and the coil has practicability.

Description

Multi-coil eddy current driving device

Technical Field

The utility model relates to the field of electricity, and particularly discloses a multi-coil eddy current driving device.

Background

The driving device is generally referred to as a power output device and is a power source of mechanical equipment. The coil driving device is a device composed of coils, and the eddy current generated by electrifying the coils through the electromagnetic principle drives the repulsion plate to move, so that the push rod is driven to move forwards, and the action purpose of the mechanism is further realized. Coil drive is one of the drive devices which are now commonly used in power grids and rail transit.

At present, a coil driving device is frequently used as a single coil driving device, and in the single coil driving process, if the speed of the mechanism action is required to be faster, the acting force generated by the single coil is required to be larger, so that the number of turns of the single coil needs to be increased in order to obtain larger acting force, the outer diameter of the coil is increased along with the increase of the number of turns of the coil, the outer size of the driving device is increased, and the driving device is inconvenient to install in a narrow area.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a multi-coil eddy current driving device to solve the above-mentioned problems of the background art.

The technical scheme of the utility model is as follows: a multi-coil eddy current driving device comprises a base, coils and a repulsion plate; at least two groups of coils are arranged at the top of the base along the length direction of the base, and the coils are connected with the same power supply in parallel; the repulsion plate is horizontally arranged above the coil, a push rod is vertically arranged on the repulsion plate, and the push rod is detachably connected with the repulsion plate.

Preferably, the center department of repulsion dish is equipped with the screw hole, the push rod is including integrative first shaft segment, second shaft segment and the third shaft segment that makes and the axle footpath reduces in proper order from last to bottom, be equipped with on the second shaft segment with screw hole assorted screw thread, second shaft segment and repulsion dish threaded connection.

Preferably, a guide hole is formed in the center of the base, the inner diameter of the guide hole is matched with the diameter of the third shaft section, and the third shaft section is inserted into the guide hole.

Preferably, the coil is in the shape of a spiral.

Compared with the prior art, the utility model has the beneficial effects that:

the coil is provided with at least two groups, and a plurality of groups of coils are connected in parallel with the same power supply, when the coil is electrified, large-area induced eddy current can be generated to push the repulsion plate to act, so that the utility model does not need to increase the number of turns of the coil additionally compared with the traditional single coil driving under the condition of ensuring the increase of the driving force, thereby reducing the whole volume, being convenient to install in a narrow area and being matched with other mechanisms for use, and having practicability.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view showing the direction of the movement of the repulsive force plate according to the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a diagram of a multi-coil arrangement according to the present invention.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Examples

As shown in fig. 1 to 2, the present invention provides a multi-coil eddy current driving apparatus including a base 1, a coil 2, and a repulsive disc 3; the coils 2 are at least two groups, in order to adapt to the installation environment of a narrow area, the base is arranged to be rectangular, a plurality of groups of coils 2 are arranged at the top of the base 1 along the length direction of the base 1, and the plurality of groups of coils 2 are connected in parallel with the same power supply; the repulsion plate 3 is horizontally arranged above the coil 2, a push rod 4 is vertically arranged on the repulsion plate 3, and the push rod 4 is detachably connected with the repulsion plate 3.

Further, the coil 2 is in a spiral shape.

When the mechanism is driven, because the coils 2 are in a spiral shape, and the number of the coils 2 is at least two and the coils 2 are connected in parallel with the same power supply, when the coils 2 are electrified, the coils 2 generate a changing magnetic field under the action of pulse current, the repulsion plate 3 generates eddy current due to the changing magnetic field, so that repulsion can be generated between the repulsion plate 3 and the coils 2, the repulsion plate 3 moves in a direction away from the coils 2 under the matching of the guide holes 5 and the third shaft section 43 after receiving the repulsion, and the repulsion plate 3 drives the push rod to move synchronously when moving, so that the push rod is driven to push components in the mechanism to act, and the corresponding functions (such as opening and closing, tripping and the like) of the mechanism are realized; under the condition that the control voltage of the coils 2 is not changed, the current passing through the coils 2 is larger when the coils are connected in parallel, so that the generated eddy current and the acting force are larger, the acting force is larger, and the action speed of the mechanism is larger, therefore, compared with a driving mode that the number of turns of a single coil is increased to increase the acting force, the driving device can ensure larger driving force through the coils 2 which are connected in parallel under the condition that the number of turns is not increased, so that the whole volume is reduced, the driving device is convenient to mount in a narrow area and is matched with other mechanisms for use, and the driving device has practicability.

In addition, compared with the traditional device which drives by using a single coil, the multi-group coil can also adapt to working environments with different driving requirements by adopting a mode of connecting the same power supply in series, when the multi-group coil is connected in series, the generated acting force is small, so that the mechanism is slow in action speed, and therefore, the multi-group coil is also suitable for the driving requirement that the mechanism is slow in action speed, and has practicability.

Further, as shown in fig. 1, in order to facilitate the installation of the repulsive force plate 3 on the push rod, a threaded hole is formed in the center of the repulsive force plate 3, the push rod includes a first shaft section 41, a second shaft section 42 and a third shaft section 43 which are integrally formed and have shaft diameters sequentially reduced from top to bottom, a thread matched with the threaded hole is formed in the second shaft section 42, and the second shaft section 42 is in threaded connection with the repulsive force plate 3.

Further, as shown in fig. 1, in order to facilitate the linear movement of the push rod by guiding the push rod when the repulsive disc and the push rod are driven to move by the coil, a guide hole 5 is formed at the center of the base 1, and the inner diameter of the guide hole 5 is matched with the diameter of the third shaft section 43, and the third shaft section 43 is inserted into the guide hole 5.

Although the preferred embodiments of the present invention have been disclosed, the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A multi-coil eddy current drive device comprises a base (1), and is characterized by further comprising:

the coils (2) are at least two groups and are arranged at the top of the base (1) along the length direction of the base (1), and a plurality of groups of coils (2) are connected in parallel with a power supply;

the repulsion plate (3) is horizontally arranged above the coil (2), a push rod is vertically arranged on the repulsion plate (3), and the push rod is detachably connected with the repulsion plate (3).

2. A multi-coil eddy current driving device according to claim 1, wherein a threaded hole is formed in the center of the repulsive force disc (3), the push rod comprises a first shaft section (41), a second shaft section (42) and a third shaft section (43) which are integrally formed and have shaft diameters which are sequentially reduced from top to bottom, a thread matched with the threaded hole is formed in the second shaft section (42), and the second shaft section (42) is in threaded connection with the repulsive force disc (3).

3. A multi-coil eddy current drive according to claim 2, characterized in that the base (1) is provided with a guide hole (5) at the center, the inner diameter of the guide hole (5) is matched with the diameter of the third shaft section (43), and the third shaft section (43) is inserted into the guide hole (5).

4. A multi-coil eddy current drive according to claim 1, characterised in that the coil (2) is in the shape of a spiral.