CN221008746U

CN221008746U - Magnetic fluid electromagnet

Info

Publication number: CN221008746U
Application number: CN202322454992.2U
Authority: CN
Inventors: 李伟锋; 刘辉
Original assignee: Shenzhen Boyiyou Photoelectric Technology Co ltd
Current assignee: Shenzhen Boyiyou Photoelectric Technology Co ltd
Priority date: 2023-09-09
Filing date: 2023-09-09
Publication date: 2024-05-24
Anticipated expiration: 2033-09-09

Abstract

The utility model discloses a magnetic fluid electromagnet which comprises a shell and a plurality of electromagnet units arranged in the shell, wherein each electromagnet unit is provided with an independent coil, the electromagnet units provide alternating magnetic fields in the same direction, and the electromagnet units are arranged on the same plane or in a staggered manner in the height direction. Through a plurality of electromagnet units (a plurality of coils are packaged), the electromagnet is not a single alternating magnetic field any more, a plurality of synchronous or alternating magnetic fields are formed, and when the alternating magnetic fields are used for magnetic fluid driving, the magnetic fluid changes more variously.

Description

Magnetic fluid electromagnet

Technical Field

The utility model relates to the technical field of magnetic fluid, in particular to a magnetic fluid electromagnet.

Background

The magnetic fluid is used as a special functional material, and is a uniform and stable colloidal solution formed by uniformly dispersing a layer of long-chain surfactant wrapped by magnetic particles with the nanometer order (about 10 nanometers) in base solution. The magnetic fluid consists of nano magnetic particles, base fluid and surfactant. Generally, ni, co, etc. are commonly used as magnetic particles, water, organic solvents, oils, etc. are used as base liquids, and oleic acid, etc. are used as active agents to prevent agglomeration. The magnetic fluid has fluidity of liquid and magnetism of solid, so that the magnetic fluid star shows a plurality of special magnetic, optical and electric phenomena, such as Faraday effect, birefringence effect, line dichroism and the like. The properties have important application prospects in the fields of light modulation, optical switches, optical isolators, sensors and the like.

For example, chinese utility model of bulletin number CN217643611U provides an acousto-optic sound with magnetic fluid decoration, comprising a sound housing component and a cloth for installing the sound housing component, wherein the surface of the sound housing component is provided with a magnetic fluid decoration bottle; a fixed shell, a loudspeaker and a Bluetooth control board are arranged in the shell; an electromagnet is arranged in the fixed shell; the fixed shell is arranged at one side of the magnetic liquid decorative bottle; the electromagnet is attached to the magnetic liquid decorative bottle; the Bluetooth control board is provided with a pickup microphone; the loudspeaker and the electromagnet are electrically connected with Bluetooth control; the utility model converts the sound of playing music into a level signal after the frequency is acquired by the Bluetooth control board, the level signal controls the current of the electromagnet in the device to control the magnetic field generated by the electromagnet, and each magnetic force change of the magnetic field generated by the electromagnet reaches the magnetic liquid which can move freely in the magnetic fluid sucking bottle, so that the magnetic liquid can suck the magnetic liquid to generate different shapes according to the change in the magnetic field, and the change of the sound frequency of the music can be observed intuitively.

For example, the magnetic fluid is generally driven by an electromagnet, the existing magnetic fluid electromagnet is provided with only one coil, the magnetic fluid is driven by alternating current to generate an alternating magnetic field, the alternating magnetic field is single, and the electromagnet special for magnetic fluid driving is lacking, so that the magnetic fluid is driven by a complex alternating magnetic field.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a magnetic fluid electromagnet which can provide a complex alternating magnetic field to drive magnetic fluid and is more varied.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

The first aspect of the utility model provides a magnetic fluid electromagnet, which comprises a shell and a plurality of electromagnet units arranged in the shell, wherein each electromagnet unit is provided with an independent coil, the electromagnet units provide alternating magnetic fields in the same direction, and the electromagnet units are staggered in the same plane or in the height direction.

Further, the electromagnet unit comprises an iron core seat, a coil is sleeved at the center of the iron core seat, and an insulating interlayer is arranged between the coil and the iron core seat.

Furthermore, a plurality of electromagnet units are uniformly arranged in the shell, and are fixedly installed in a waterproof mode through the glue sealing layer.

Further, a bottom plate is further arranged in the shell, a plurality of electromagnet units are arranged above the bottom plate, a connecting circuit board is arranged below the bottom plate, and each electromagnet unit penetrates through the bottom plate and is connected with the connecting circuit board.

Specifically, a plurality of electromagnet units are arranged on the upper side of the bottom plate through an rubberizing sealing layer, the connecting circuit board is fixed on the lower side of the bottom plate through a lower rubberizing sealing layer, and connecting wires are arranged on one side of the shell corresponding to the connecting circuit board.

Further, 5, 6 or 9 electromagnet units are arranged in the shell, one electromagnet unit is located at the center of the shell, and the rest electromagnet units are uniformly distributed around the center of the shell.

Further, the electromagnet units are connected in series, and are connected with the connecting circuit board and/or the connecting wire through a positive voltage wire and a negative voltage wire, and are connected with an external power supply.

Furthermore, a plurality of electromagnet units are connected in parallel, the connecting circuit board is provided with a control switch corresponding to each electromagnet unit, and the control switch is communicated with an external driving signal through a control signal line.

By adopting the technical scheme, the magnetic fluid electromagnet provided by the embodiment of the utility model has the advantages that the plurality of electromagnet units (a plurality of coils are encapsulated), each electromagnet unit is provided with an independent coil, the plurality of electromagnet units provide alternating magnetic fields in the same direction, and the plurality of electromagnet units are arranged on the same plane or in a staggered manner in the height direction. The electromagnet is not a single alternating magnetic field any more, a plurality of synchronous or alternating magnetic fields are formed, and when the alternating magnetic fields are used for magnetic fluid driving, the magnetic fluid changes more variously.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a magnetic fluid electromagnet in a front view;

FIG. 2 is a top view of a first magnetofluid electromagnet according to one embodiment of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram of a first magnetofluid electromagnet driving circuit according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a second magnetofluid electromagnet driving circuit according to an embodiment of the present utility model;

FIG. 6 is a top view of a second magnetofluid electromagnet according to one embodiment of the present utility model;

fig. 7 is a schematic diagram of a use state of a magnetofluid electromagnet according to an embodiment of the present utility model.

The device comprises a 10-magnetic fluid electromagnet, a 110-electromagnet unit, a 111-iron core seat, a 112-coil, a 113-insulating interlayer, a 120-shell, a 130-rubberizing seal layer, a 140-bottom plate, a 150-connecting circuit board, a 151-positive line, a 152-negative line, a 153-control switch, a 154-control signal line, a 160-rubberizing seal layer and a 170-connecting line, wherein the two parts are arranged in the same plane; 20-container, 30-liquid, 40-magnetic fluid.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1-3, an embodiment of the present utility model provides a magnetic fluid electromagnet 10, which includes a housing 120, and a plurality of electromagnet units 110 disposed in the housing 120, wherein each electromagnet unit 110 has an independent coil 112, the plurality of electromagnet units 110 provide alternating magnetic fields in the same direction, and the plurality of electromagnet units 110 are staggered in the same plane or in the height direction.

As shown in fig. 3, the electromagnet unit 110 includes a core base 111, a coil 112 is sleeved at the center of the core base 111, and an insulating spacer 113 is disposed between the coil 112 and the core base 111.

Specifically, the plurality of electromagnet units 110 are uniformly disposed in the housing 120, and are fixedly installed in a waterproof manner through an adhesive layer. As shown in fig. 3, a bottom plate 140 is further disposed in the housing 120, a plurality of electromagnet units 110 are disposed above the bottom plate 140, a connection circuit board 150 is disposed below the bottom plate 140, and each electromagnet unit 110 is disposed through the bottom plate 140 and connected to the connection circuit board 150.

As shown in fig. 3, the plurality of electromagnet units 110 are disposed on the upper side of the bottom plate 140 through the upper glue sealing layer 130, the connection circuit board 150 is fixed on the lower side of the bottom plate 140 through the lower glue sealing layer 160, and a connection wire 170 is disposed on one side of the housing 120 corresponding to the connection circuit board 150.

As shown in fig. 2 and 6, 5, 6 or 9 electromagnet units 110 are disposed in the housing 120, one electromagnet unit 110 is located at the center of the housing 120, and the rest of the electromagnet units 110 are uniformly distributed around the center of the housing 120.

As shown in fig. 4, a plurality of the electromagnet units 110 are connected in series with each other, and connected to the connection circuit board 150 and/or the connection line 170 through a positive voltage line 151 and a negative voltage line 152. Since the plurality of electromagnet units 110 are connected in parallel, the circuit structure is simple, the connection circuit board 150 can be omitted, and the alternating current is input through the external power supply to drive, so that the alternating magnetic fields of the plurality of units are generated.

As shown in fig. 5, a plurality of the electromagnet units 110 are connected in parallel, and the connection circuit board 150 is provided with a control switch 153 corresponding to each of the electromagnet units 110, and the control switch 153 is connected to an external driving signal via a control signal line 154. Alternatively, the control switch 153 may be a trigger, and the control switch 153 is driven by a pulse signal or the like to turn on or off a circuit, so that the plurality of electromagnet units 110 may perform complex alternating operation according to the control signal, thereby generating complex and variable magnetic fields.

As shown in fig. 7, when in use, the magnetic fluid electromagnet 10 of the present embodiment is disposed at one side, usually the bottom, of the container 20, a liquid 30, usually water, is disposed in the container 20, a magnetic fluid 40 is disposed in the liquid 30, the magnetic fluid electromagnet 10 generates an alternating magnetic field under the action of an alternating current and/or a control signal, so that the magnetic fluid 40 generates various shape changes in the liquid 30, and the control signal can be correlated with light and music signals, so that the magnetic fluid 40 is more dynamic and attractive.

According to the magnetic fluid electromagnet disclosed by the embodiment of the utility model, through the plurality of electromagnet units (a plurality of coils are packaged), each electromagnet unit is provided with the independent coil, the plurality of electromagnet units provide alternating magnetic fields in the same direction, and the plurality of electromagnet units are arranged on the same plane or in a staggered manner in the height direction. The electromagnet is not a single alternating magnetic field any more, a plurality of synchronous or alternating magnetic fields are formed, and when the alternating magnetic fields are used for magnetic fluid driving, the magnetic fluid changes more variously.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The magnetic fluid electromagnet is characterized by comprising a shell and a plurality of electromagnet units arranged in the shell, wherein each electromagnet unit is provided with an independent coil, the electromagnet units provide alternating magnetic fields in the same direction, and the electromagnet units are arranged on the same plane or in a staggered mode in the height direction.

2. The magnetic fluid electromagnet according to claim 1, wherein the electromagnet unit comprises a core housing, a coil is sleeved in the center of the core housing, and an insulating interlayer is arranged between the coil and the core housing.

3. The magnetic fluid electromagnet according to claim 1, wherein a plurality of electromagnet units are uniformly arranged in the housing, and water-proof fixed installation is performed through an adhesive layer.

4. The magnetic fluid electromagnet according to claim 1, wherein a bottom plate is further arranged in the housing, a plurality of electromagnet units are arranged above the bottom plate, a connecting circuit board is arranged below the bottom plate, and each electromagnet unit penetrates through the bottom plate and is connected with the connecting circuit board.

5. The magnetic fluid electromagnet according to claim 4, wherein a plurality of the electromagnet units are disposed on the upper side of the base plate through an upper adhesive sealing layer, the connection circuit board is fixed on the lower side of the base plate through a lower adhesive sealing layer, and connection wires are disposed on one side of the housing corresponding to the connection circuit board.

6. The magnetofluid electromagnet of claim 1, wherein 5, 6 or 9 electromagnet units are disposed in the housing, one of the electromagnet units being located at the center of the housing, and the remaining electromagnet units being evenly distributed around the center of the housing.

7. The magnetofluid electromagnet according to claim 5, wherein a plurality of the electromagnet units are connected in series with each other, and are connected to the connection circuit board and/or the connection line with an external power source through a positive voltage line and a negative voltage line.

8. The magnetofluid electromagnet according to claim 5, wherein a plurality of the electromagnet units are connected in parallel, and the connection circuit board is provided with a control switch corresponding to each of the electromagnet units, and the control switch is connected with an external driving signal through a control signal line.