CN105845497A - Magnetic fluid switch with copper nano particles and distributed combination method - Google Patents

Magnetic fluid switch with copper nano particles and distributed combination method Download PDF

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Publication number
CN105845497A
CN105845497A CN201610355673.8A CN201610355673A CN105845497A CN 105845497 A CN105845497 A CN 105845497A CN 201610355673 A CN201610355673 A CN 201610355673A CN 105845497 A CN105845497 A CN 105845497A
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China
Prior art keywords
magnetic fluid
switch
mounting groove
nano particles
magnetic
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CN201610355673.8A
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CN105845497B (en
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牛小东
李翔
陈木凤
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Shantou University
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Shantou University
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/008Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature

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  • Multiple-Way Valves (AREA)
  • Micromachines (AREA)

Abstract

The invention relates to a control switch, especially to a magnetic fluid switch with copper nano particles and a distributed combination method. The switch is characterized in that a magnetic fluid state is changed by controlling a magnetic field direction so as to realize closing, disconnection or selection of a circuit. According to the magnetic fluid, copper nano particles are mixed with temperature-sensing insulating magnetic fluid and a retention agent is also added to keep a uniform mixing state. On the basis of the principle, a distributed structure of a magnetic fluid switch is designed; and rapid combination can be realized according to different practical demands. In addition, the invention also includes a specific structure of a magnetic fluid switch and a distributed combination method thereof. Compared with the prior art, the magnetic fluid has good performances of heat radiation, sealing, and easy aging prevention. The magnetic fluid switch enables the original switch operation mode to be changed and a novel switch material and a novel combination method are invented. On the basis of the distributed structure, the modularized design combination can be realized rapidly; and multi-channel selection and capacity expansion of the switch terminal are realized.

Description

A kind of magnetic fluid with copper nano particles switchs and distributed combined method
Technical field
The present invention relates to a kind of control switch, especially relate to a kind of magnetic fluid with copper nano particles and switch and distributed combined method.
Background technology
Switch the electronic component as a kind of common control circuit closed and disconnected, be seen everywhere in our daily life.Currently, along with the continuous rising of whole world transmission of electricity, controller switching equipment and component demand thereof, also pulled the high speed development of China's transmission of electricity, controller switching equipment simultaneously.But has there is production capacity surplus at mid and low-end products in China at present, and high-end product does not technically also have breakthrough innovation.
The Main way of switch research and development includes: high frequency, reliability, low power consuming, anti-interference and modularity.Modularity is the general trend of switch development, but the most effective modular switch method for designing.
Summary of the invention
It is an object of the invention to provide a kind of magnetic fluid with copper nano particles to switch and distributed combined method, to solve existing distributed switch system and cannot be miniaturized, that parts interchangeability is poor, terminal easily generates heat is aging and insulate and the problem such as sealing.
In order to realize above-mentioned purpose; adopt the following technical scheme that: a kind of magnetic fluid switch containing copper nano particles; described magnetic fluid switch is by controlling magnetic direction change magnetic fluid state to realize closing of circuit, disconnect or select; described magnetic fluid is that copper nano particles is mixed into temperature-sensitive insulated magnetic fluid mixed liquor, and adds retention agent and keep its uniform admixture.Wherein, retention agent can use styrene.
It is mixed with the temperature-sensitive insulated magnetic fluid mixed liquor of copper nano particles, closed and disconnected for control circuit, in experimentation, non magnetic nano-particle in magnetic fluid is under certain the action of a magnetic field, there will be along magnetic induction line direction linearly self assembly characteristic, realize the control of closing of circuit and disconnection by controlling magnetic field.
Further, described magnetic fluid switch includes switch base, switch module and switch terminal module, described switch base includes mounting groove, power lead plate and permanent magnet, mounting groove groove position has one or more, groove position is corresponding with the contact of power lead plate, permanent magnet is arranged on bottom mounting groove, described switch module is the cavity mated with mounting groove groove position, one end that cavity is connected with mounting groove is provided with connecting hole, connecting hole is corresponding with the contact of wire guide plate, cavity inside is filled with magnetic fluid, the other end is connected with switch terminal module coupling, it is provided with electric magnet and terminal wire in described switch terminal module, electric magnet is by control circuit control, electromagnet pole is the most different in nature with the permanent magnet magnetic pole of switch base.
The mounting groove of switch base is used for positioning and fixing switch module;Power lead plate is for the input as switch;Permanent magnet is contrary with the electromagnet pole of switch terminal module, and both interaction energies produce magnetic field, and permanent magnet interacts with magnetic fluid simultaneously, it is achieved the sealing to switch module connecting hole;Magnetic fluid mixed liquor itself has certain sealing, and switch module is mainly used in storing and sealing magnetic fluid;Switch terminal module is used as the lead-out terminal of switch, and terminal wire is connected with external equipment, and electric magnet interacts with permanent magnet, is mainly used in controlling the magnetic field in switch module.
Further, described mounting groove has multiple, and mounting groove is set to matrix arrangement.Magnetic fluid switch is arranged to distributed switch system, it is possible to multichannel connects, and realizes the capacity extension of switch terminal.
Further, switch base is shaped as flat board, curved surface or cylinder.
Further, the distributed combined method of described magnetic fluid switch, its method comprises the following steps:
S1 according to the circuit number of required control design switch base size, the groove position of mounting groove and the number of contacts of power lead plate relative to and distributed arrangement, assembling fixing permanent magnet;
S2 prepares magnetic fluid mixed liquor, a certain amount of copper nano particles is mixed into temperature-sensitive insulated magnetic fluid, and keeps its uniform admixture by retention agent, loaded by mixed liquor in brown glass reagent bottle standby;
S3 arranges switch module according to circuit number and mounting groove number of slots mesh, then makes its internal full magnetic fluid mixed liquor;
S4 installs switch terminal module, by magnetic fluid seal in switch module.
Wherein, step S2 is initially charged retention agent, more a certain amount of copper nano particles is mixed into temperature-sensitive insulated magnetic fluid.After step S4 completes, test switch performance by the magnetic field intensity of regulating magnet.
The invention have the advantages that (1) compact conformation, each several part is relatively independent, maintains easily and overhauls;(2) it is capable of distributed combination, multi-center selection and realize the capacity extension of switch terminal.(3) there is good interchangeability, modularity, seriation can be realized and quickly design;(4) switch of the present invention to working environment without particular/special requirement, it is possible to adapt to various special environment.
The present invention realizes the assembling of copper nano particles by controlling magnetic field and dissociates, thus realizes closing of circuit and the control of disconnection.Compared with prior art, magnetic fluid has thermal diffusivity and sealing concurrently, is difficult to aging, and magnetic fluid switch changes the operational mode of original switch, has started a kind of new switching material and new combined method.Distributed frame can quickly realize modularized design combination, multi-center selection and realize the capacity extension of switch terminal.
Accompanying drawing explanation
Fig. 1 is the assembly schematic diagram of the present invention;
Fig. 2 is the switch base structural representation of the present invention;
Fig. 3 is the switch module generalized section of the present invention;
Fig. 4 is the switch terminal module diagram of the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1; a kind of magnetic fluid with copper nano particles switchs; including switch base 1, magnetic fluid mixed liquor, switch module 2 and switch terminal module 3; as shown in Figure 2; switch base 1 includes mounting groove 4, power lead plate 5 and permanent magnet 6; mounting groove groove position is multiple; the rectangular arrangement in contact of groove position and power lead plate 5; the most corresponding; permanent magnet 6 is arranged on bottom mounting groove 4; magnetic fluid mixed liquor is that a certain amount of copper nano particles is mixed into temperature-sensitive insulated magnetic fluid, and keeps its uniform admixture by styrene;As shown in Figure 3, switch module 2 is the cavity mated with mounting groove 4 groove position, one end that cavity is connected with mounting groove 4 is provided with connecting hole 41, connecting hole 41 is corresponding with the contact 51 of wire guide plate 5, and cavity inside is filled with magnetic fluid, and the other end is connected with switch terminal module 3 coupling, as shown in Figure 4, being provided with electric magnet 31 and terminal wire 32 in described switch terminal module 3, electric magnet 31 is by control circuit control, and electric magnet 31 magnetic pole is the most different in nature with permanent magnet 6 magnetic pole of switch base 1.
The above-mentioned magnetic fluid with copper nano particles switchs, it is possible to achieve Distributed Design, and according to different actual demands, Rapid Combination, a combination thereof method is as follows:
S1 determines switch base size according to the circuit number of required control and selects the shape (flat board, curved surface or cylinder) of pedestal, as shown in Figure 2, embodiment 1 is designed to flat board, the groove position of mounting groove and the number of contacts of power lead plate relative to and distributed arrangement, assembling fixing permanent magnet;
S2 prepares magnetic fluid mixed liquor, a certain amount of copper nano particles is mixed into temperature-sensitive insulated magnetic fluid, and keeps its uniform admixture by retention agent, loaded by mixed liquor in brown glass reagent bottle standby;
S3 arranges switch module according to circuit number and mounting groove number of slots mesh, as it is shown on figure 3, switch module is a cuboid cavity, one end has connecting hole, matches with the contact of power lead plate, and the other end is open, its internal full magnetic fluid mixed liquor;
S4 installs switch terminal module, by magnetic fluid seal in switch module;
S5 needs the magnetic field intensity by regulating magnet to test switch performance after completing assembling.

Claims (7)

1. the magnetic fluid switch containing copper nano particles; it is characterized in that; described magnetic fluid switch is by controlling magnetic direction change magnetic fluid state to realize closing of circuit, disconnect or select; described magnetic fluid is that copper nano particles is mixed into temperature-sensitive insulated magnetic fluid mixed liquor, and adds retention agent and keep its uniform admixture.
Magnetic fluid the most according to claim 1 switchs, it is characterised in that described retention agent is styrene.
Magnetic fluid the most according to claim 1 switchs, it is characterized in that, described magnetic fluid switch includes switch base, switch module and switch terminal module, described switch base includes mounting groove, power lead plate and permanent magnet, mounting groove groove position has one or more, groove position is corresponding with the contact of power lead plate, permanent magnet is arranged on bottom mounting groove, described switch module is the cavity mated with mounting groove groove position, one end that cavity is connected with mounting groove is provided with connecting hole, connecting hole is corresponding with the contact of wire guide plate, cavity inside is filled with magnetic fluid, the other end is connected with switch terminal module coupling, it is provided with electric magnet and terminal wire in described switch terminal module, electric magnet is by control circuit control, electromagnet pole is the most different in nature with the permanent magnet magnetic pole of switch base.
Magnetic fluid the most according to claim 3 switchs, it is characterised in that described mounting groove has multiple, and mounting groove is set to matrix arrangement.
Magnetic fluid the most according to claim 3 switchs, it is characterised in that described switch base is shaped as flat board, curved surface or cylinder.
The distributed combined method of magnetic fluid the most according to claim 3 switch, it is characterised in that said method comprising the steps of:
S1 determines switch base size according to the circuit number of required control, the groove position of mounting groove and the number of contacts of power lead plate relative to and distributed arrangement, assembling fixing permanent magnet;
S2 prepares magnetic fluid mixed liquor, a certain amount of copper nano particles is mixed into temperature-sensitive insulated magnetic fluid, and keeps its uniform admixture by retention agent, loaded by mixed liquor in brown glass reagent bottle standby;
S3 arranges switch module according to circuit number and mounting groove number of slots mesh, then makes its internal full magnetic fluid mixed liquor;
S4 installs switch terminal module, by magnetic fluid seal in switch module.
Method the most according to claim 6, it is characterised in that after described step S4 completes, tests switch performance by the magnetic field intensity of regulating magnet.
CN201610355673.8A 2016-05-24 2016-05-24 A kind of magnetic fluid switch with copper nano particles and distributed combined method Active CN105845497B (en)

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CN105845497B CN105845497B (en) 2018-04-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111067689A (en) * 2020-01-21 2020-04-28 羽源洋(宁波)科技有限公司 Instrument and method for fixing bone fracture part by utilizing magnetic fluid in orthopedics department
CN111928561A (en) * 2020-09-09 2020-11-13 江永雄 Electronic fresh-keeping device for refrigeration house

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042907A1 (en) * 1980-06-30 1982-01-06 International Business Machines Corporation Optical switch
CN1368743A (en) * 2001-02-05 2002-09-11 包头稀土研究院 Magnetic rare-earth liquid material at about ordinary temp and its magnetic refrigerator
CN1399783A (en) * 1999-11-25 2003-02-26 纳磁股份有限公司 Magnetic fluid
CN102926571A (en) * 2012-10-23 2013-02-13 林智勇 Magnetic fluid parking spot lock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042907A1 (en) * 1980-06-30 1982-01-06 International Business Machines Corporation Optical switch
CN1399783A (en) * 1999-11-25 2003-02-26 纳磁股份有限公司 Magnetic fluid
CN1368743A (en) * 2001-02-05 2002-09-11 包头稀土研究院 Magnetic rare-earth liquid material at about ordinary temp and its magnetic refrigerator
CN102926571A (en) * 2012-10-23 2013-02-13 林智勇 Magnetic fluid parking spot lock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111067689A (en) * 2020-01-21 2020-04-28 羽源洋(宁波)科技有限公司 Instrument and method for fixing bone fracture part by utilizing magnetic fluid in orthopedics department
CN111928561A (en) * 2020-09-09 2020-11-13 江永雄 Electronic fresh-keeping device for refrigeration house
CN111928561B (en) * 2020-09-09 2022-11-25 江永雄 Electronic fresh-keeping device for refrigeration house

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