CN216362031U

CN216362031U - Magnetic fluid digital controller

Info

Publication number: CN216362031U
Application number: CN202122320954.9U
Authority: CN
Inventors: 耿聃
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-22
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to a magnetic fluid display, in particular to a magnetic fluid digital controller for displaying numbers. The magnetic fluid digital controller is provided with a plurality of permanent magnet push-pull devices for controlling a plurality of permanent magnets for adsorbing the magnetic fluid, the plurality of permanent magnets are matched with each other to enable the magnetic fluid to form a digital shape, the south-north pole connecting line of the permanent magnets is parallel to the plane of the magnetic fluid container, namely the N pole and the S pole connecting line of the magnets are parallel to the plane of the magnetic fluid, the magnetic fluid is attracted by the permanent magnets in the direction, burrs cannot occur, and the magnetic fluid is distributed more uniformly. The utility model designs the distribution of the magnetic poles between each permanent magnet and the adjacent permanent magnet, so that the magnetic fluid among the permanent magnets is transferred more smoothly, the magnetic fluid is distributed more uniformly, the formed number is more attractive, and a good display effect can be obtained.

Description

Magnetic fluid digital controller

Technical Field

The utility model relates to a magnetic fluid display, in particular to a magnetic fluid digital controller for displaying numbers.

Background

The magnetic fluid is a colloid which can be attracted by magnetic substances, is generally colored and has fluidity. A magnetic fluid display typically uses a transparent container that contains a fluid immiscible with the magnetic fluid and a small amount of magnetic fluid. The plurality of magnetic fluid control devices are arranged behind the magnetic fluid container, and some magnetic fluid control devices are controlled to adsorb magnetic fluid, and other magnetic fluid control devices release magnetic fluid to enable the magnetic fluid to form display content. According to the lines of the display content, the magnetic fluid control device at the corresponding line position adsorbs the magnetic fluid, and when the display content is switched, the magnetic fluid is adsorbed or released again according to the new display content, so that the magnetic fluid can form characters, symbols, patterns or animations, and the magnetic fluid display is realized. The magnetofluid clock, magnetofluid thermometer, etc. are magnetofluid displays for displaying time or temperature figures.

If the magnetic fluid display needs to display numbers, a magnetic fluid digital controller is needed, the magnetic fluid digital controller is a device for controlling magnetic fluids to form numbers in a container, and a plurality of magnetic fluid control devices can form a shape similar to a nixie tube.

The magnetic fluid control device comprises a permanent magnet push-pull device which is used for enabling the permanent magnet to be close to or far away from the magnetic fluid container, adsorbing the magnetic fluid when the permanent magnet is close to the magnetic fluid container, and releasing the magnetic fluid when the permanent magnet is far away from the magnetic fluid container.

The permanent magnet push-pull devices used in the prior art have the following schemes.

The first permanent magnet push-pull device has the same structure as that in fig. 3 and 4, a sliding block 3 in fig. 1 is close to a magnetic fluid container 1, and a magnetic fluid 2 is adsorbed by a first permanent magnet 31 in the sliding block 3; in fig. 2 the slider 3 is away from the magnetic fluid container 1 and the magnetic fluid 2 is released. The slide block 3 is provided with two through holes, the two slide rails 7 respectively penetrate through the through holes, and the slide block 3 can slide left and right on the rod body 7. Two slide rails 7 are fixed between the first plate 8 and the second plate 9, and the solenoid 6 is fixed between the second plate 9 and the third plate 5. The slider 3 includes a permanent magnet 31 and a permanent magnet 32 therein. The permanent magnet 31 is positioned at the head part of the sliding block 3 and is used for adsorbing the magnetic fluid; a permanent magnet 32 is located at the rear of the slider 3 for generating a magnetic force with the solenoid 6 to move the slider 3. When currents in different directions are introduced into the solenoid 6, the solenoid 6 generates magnetic fields in different directions, magnetic forces in different directions are generated on the permanent magnet 32, and the moving direction of the sliding block 3 can be controlled by controlling the directions of the currents in the solenoid 6.

The second permanent magnet push-pull device, as shown in fig. 5, the motor 11 drives the permanent magnet 31 to approach or depart from the magnetic fluid container 1. The rotor of the motor 11 is connected with the gear 12, and the gear 12 can be rotated clockwise or counterclockwise by controlling the current direction of the motor. The gear 12 drives the rack 13 to move left and right when rotating; the left end of the rack 13 is connected with the permanent magnet 31, and when the rack 13 moves rightwards, the permanent magnet 31 is driven to move rightwards; when the rack 13 moves to the left, the permanent magnet 31 is driven to move to the left.

In the third permanent magnet push-pull device, a push-pull electromagnet is an electromagnet which drives an iron core to be attracted by a solenoid so as to drive a pull rod to stretch, and common push-pull electromagnets include a bidirectional self-holding push-pull electromagnet and a self-holding push-pull electromagnet. Referring to fig. 6, the push-pull electromagnet 32 is used to drive the permanent magnet 31 to approach or leave the magnetic fluid container 1, the push-pull electromagnet 32 has a telescopic rod 33, the telescopic rod 33 drives the permanent magnet 31 to approach the magnetic fluid container 1 when extending out, and the telescopic rod 33 drives the permanent magnet 31 to leave the magnetic fluid container 1 when retracting.

The permanent magnet 31 can also be manually controlled to be close to or far from the magnetic fluid container 1, and the permanent magnet push-pull device also adopts other various schemes.

In order to display numbers by using the magnetic fluid, seven groups of permanent magnets 31 are arranged in a shape of 8 to form a shape of a seven-segment digital tube, each group of permanent magnets respectively controls one stroke, the permanent magnets have two magnetic poles of south and north, and the seven groups of permanent magnets can form a plurality of arrangement modes according to the difference of the directions of the magnetic poles, the connecting line of south and north poles of the magnets in the prior art is perpendicular to the direction of the magnetic fluid container, namely the connecting line of N pole and S pole of the magnets is parallel to the stretching direction of the pull rod 33, and the permanent magnets attract the magnetic fluid in the direction to generate burrs, so that a good display effect cannot be obtained.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an arrangement mode of a plurality of permanent magnets in a magnetic fluid digital controller, the magnetic pole directions of the plurality of permanent magnets are more reasonable, and a better display effect is realized.

In order to solve the technical problem, the magnetic fluid digital controller comprises seven groups of long strip-shaped permanent magnets, each group of long strip-shaped permanent magnets is controlled by a permanent magnet push-pull device, and the magnetic fluid digital controller is characterized in that: the two long sides of the long-strip permanent magnet are respectively an N pole and an S pole, and the direction of the connecting line of the two magnetic poles of the long-strip permanent magnet is parallel to the plane of the number formed by the magnetic fluid; seven groups of long strip permanent magnets include: the permanent magnet comprises a first permanent magnet, a second permanent magnet, a third permanent magnet, a fourth permanent magnet, a fifth permanent magnet, a sixth permanent magnet and a seventh permanent magnet; the first permanent magnet, the second permanent magnet, the third permanent magnet and the fourth permanent magnet are encircled into a square shape; the fourth permanent magnet, the fifth permanent magnet, the sixth permanent magnet and the seventh permanent magnet are encircled into a square shape; the seven groups of long strip-shaped permanent magnets form a figure 8.

The magnetic pole direction of the permanent magnet is parallel to the plane of the number formed by the magnetic fluid, so that the magnetic fluid can be adsorbed more uniformly by the permanent magnet, the magnetic fluid can not be concentrated too much at two ends of the permanent magnet, burrs can not be generated or the burrs are few, and a better visual effect can be achieved.

As the improvement of the utility model, the upper side of the first permanent magnet is an X pole; the right side of the third permanent magnet is an X pole and/or the left side of the second permanent magnet is an X pole. The magnetic fluid can be mutually transferred between the first permanent magnet and the permanent magnet nearby the first permanent magnet.

As the improvement of the utility model, the left side of the second permanent magnet is an X pole; the left side of the fifth permanent magnet is an X pole, the upper side of the first permanent magnet is an X pole, and/or the lower side of the fourth permanent magnet is an X pole. The second permanent magnet and the permanent magnet nearby the second permanent magnet can mutually transfer magnetic fluid.

As the improvement of the utility model, the right side of the third permanent magnet is an X pole; the right side of the sixth permanent magnet is an X pole, the upper side of the first permanent magnet is an X pole, and/or the lower side of the fourth permanent magnet is an X pole. The third permanent magnet and the permanent magnet nearby the third permanent magnet can mutually transfer magnetic fluid.

As the improvement of the utility model, the upper side of the fourth permanent magnet is an X pole; the right side of the sixth permanent magnet is an X pole and/or the left side of the fifth permanent magnet is an X pole and/or the right side of the second permanent magnet is an X pole and/or the left side of the third permanent magnet is an X pole. The magnetic fluid can be mutually transferred between the fourth permanent magnet and the permanent magnet nearby the fourth permanent magnet.

As a modification of the present invention, the left side of the fifth permanent magnet is an X pole; the lower side of the seventh permanent magnet is an X pole, the upper side of the fourth permanent magnet is an X pole, and/or the left side of the second permanent magnet is an X pole. The fifth permanent magnet and the permanent magnet nearby the fifth permanent magnet can mutually transfer magnetic fluid.

As the improvement of the utility model, the right side of the sixth permanent magnet is an X pole; the lower side of the seventh permanent magnet is an X pole, the upper side of the fourth permanent magnet is an X pole, and/or the right side of the third permanent magnet is an X pole. The magnetic fluid can be mutually transferred between the sixth permanent magnet and the permanent magnet nearby the sixth permanent magnet.

As a modification of the present invention, the lower side of the seventh permanent magnet is an X pole; the right side of the sixth permanent magnet is an X pole and/or the left side of the fifth permanent magnet is an X pole. The magnetic fluid can be mutually transferred between the seventh permanent magnet and the permanent magnet nearby the seventh permanent magnet.

As an improvement of the utility model, the permanent magnet further comprises a first auxiliary permanent magnet; the right side of the first auxiliary permanent magnet is an X pole; the lower side of the seventh permanent magnet is an X pole and/or the right side of the fifth permanent magnet is an X pole. The magnetic fluid adsorbed by the first auxiliary permanent magnet can be smoothly transferred to the nearby permanent magnet.

As an improvement of the utility model, the permanent magnet also comprises a second auxiliary permanent magnet; the left side of the second auxiliary permanent magnet is an X pole; the lower side of the seventh permanent magnet is an X pole and/or the left side of the sixth permanent magnet is an X pole. The magnetic fluid adsorbed by the second auxiliary permanent magnet can be smoothly transferred to the nearby permanent magnet.

As an improvement of the utility model, the magnetic poles of the inner sides of the 0-shaped permanent magnets surrounded by the first permanent magnet, the second permanent magnet, the third permanent magnet, the fifth permanent magnet, the sixth permanent magnet and the seventh permanent magnet are the same, and the magnetic poles of the outer sides of the 0-shaped permanent magnets are the same; the upper side of the fourth permanent magnet is an N pole or an S pole.

The arrangement mode of the permanent magnets in the utility model can ensure that the digital strokes formed by the permanent magnets adsorbing the magnetic fluid are more uniform and smooth, the magnetic fluid is more smoothly transferred among the strokes, and better display effect can be realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 shows a schematic north-south direction of a permanent magnet according to an embodiment of the present invention.

Fig. 2 shows a positioning reference of the arrangement direction of a plurality of permanent magnets in the present invention.

Figure 3 shows a cross-section of a first embodiment of a prior art permanent magnet push-pull device adsorbing a magnetic fluid.

Figure 4 shows a cross-section of a first embodiment of a prior art permanent magnet push-pull device releasing the magnetic fluid.

Figure 5 shows a cross-section of a second embodiment of a permanent magnet push-pull of the prior art adsorbing a magnetic fluid.

Figure 6 shows a cross-section of a third embodiment of a permanent magnet push-pull device of the prior art adsorbing a magnetic fluid.

Detailed Description

In the case of the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, shall fall within the scope of protection of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged where appropriate. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus. For convenience of description, the terms "left" and "right" are used in the left and right directions of the drawings, but do not limit the structure of the present invention.

The permanent magnets N and S are marked in the drawings in the specification to show the axial direction of the permanent magnet which generates acting force with the electrified solenoid 6, and the N pole and the S pole of all the permanent magnets in the same embodiment can be exchanged to achieve the same effect.

The magnetic fluid control device can be used for magnetic fluid clocks, magnetic fluid digital displays, magnetic fluid temperature displays and the like.

In fig. 1, each of the seven rectangular solids represents a group of permanent magnets, and a group of permanent magnets may be one permanent magnet or two or more permanent magnets with the same magnetic pole direction. In the embodiment of the utility model, the connecting lines of the N poles and the S poles of the seven groups of permanent magnets are all parallel to the paper surface and are also digital planes formed by the magnetic fluid, namely the connecting lines of the N poles and the S poles and the front and back planes of the magnetic fluid container 1. When the magnetic poles of the permanent magnet adsorb the magnetic fluid 2 in the direction, the magnetic fluid 2 is more uniformly distributed.

The magnetofluid number needs a plurality of permanent magnets to be adsorbed to form a number to be displayed. When no permanent magnet attracts, the magnetic fluid 2 is gathered at a certain side of the magnetic fluid container 1, and the magnetic fluid 2 needs to be transferred among a plurality of permanent magnets to display a complete number. In order to make the magnetic fluid 2 smoothly transferred between the plurality of permanent magnets and to make the displayed digital strokes more beautiful, the magnetic poles at the two ends of the two permanent magnets close to each other are preferably the same, for example: the right end of the first permanent magnet 01 is close to the upper end of the third permanent magnet 03, and when the upper magnetic pole of the first permanent magnet 01 is the same as the right magnetic pole of the third permanent magnet 03, the magnetic fluid 2 can be more uniformly distributed in front of the two permanent magnets. Therefore, in order to transfer the magnetic fluid 2 from a certain side of the magnetic fluid container 1 to each stroke of the number, the arrangement of the magnetic poles of the permanent magnet needs to be designed.

As shown in fig. 2, the directions of the magnetic poles of the permanent magnets of the present invention are all parallel to the paper surface, i.e. the connecting lines of the N pole and the S pole are parallel to the plane of the numbers formed by the magnetic fluid, the connecting lines of the N pole and the S pole of the first permanent magnet 01, the fourth permanent magnet 04, and the seventh permanent magnet 07 are vertical, and the N pole and the S pole of the three permanent magnets are respectively on the upper side or the lower side; the connecting lines of the N poles and the S poles of the second permanent magnet 02, the third permanent magnet 03, the fifth permanent magnet 05 and the sixth permanent magnet 06 are in the horizontal direction, and the N poles and the S poles of the four permanent magnets are respectively on the left side or the right side. The connecting line of the N pole and the S pole of the first auxiliary permanent magnet 08 and the second auxiliary permanent magnet 09 is also in the horizontal direction, and the N pole and the S pole of the two permanent magnets are respectively arranged on the left side or the right side. The first auxiliary permanent magnet 08 and the second auxiliary permanent magnet 09 are not essential, and either one or both may be removed or retained as necessary.

Depending on the nature of the permanent magnet poles, the upper and lower sides depicted in fig. 2 may correspond to N poles, or S poles, the lower side being necessarily S poles if the upper side is N poles, and the lower side being necessarily N poles if the upper side is S poles; similarly, the left side and the right side can correspond to the N pole and also can correspond to the S pole, if the left side is the N pole, the right side is the S pole, and if the left side is the S pole, the right side is the N pole.

Since the effect is the same after the N-pole and S-pole of all the permanent magnets are exchanged, one of the N-pole and S-pole is represented by an X-pole in the following description. The X pole may be either the N pole or the S pole in particular embodiments.

A first partial layout: the following arrangement allows the magnetic fluid 2 to pass from the vicinity of the first permanent magnet 01 to the first permanent magnet 01.

1. The upper side of the first permanent magnet 01 is an X pole, and the right side of the third permanent magnet 03 is an X pole.

2. The upper side of the first permanent magnet 01 is an X pole, and the left side of the second permanent magnet 02 is an X pole.

The second partial layout: the following arrangement allows the magnetic fluid 2 to pass from the vicinity of the first and permanent magnets 02 to the second permanent magnet 02.

1. The second permanent magnet 02 is X-pole to the left and the fifth permanent magnet 05 is X-pole to the left.

2. The left side of the second permanent magnet 02 is the X pole, and the upper side of the first permanent magnet 01 is the X pole.

3. The left side of the second permanent magnet 02 is the X pole, and the lower side of the fourth permanent magnet 04 is the X pole.

The third partial layout: the following arrangement allows the magnetic fluid 2 to pass from the vicinity of the third permanent magnet 03 to the third permanent magnet 03.

1. The third permanent magnet 03 has an X pole on the right and the sixth permanent magnet 06 has an X pole on the right.

2. The right side of the third permanent magnet 03 is an X pole, and the upper side of the first permanent magnet 01 is an X pole.

3. The right side of the third permanent magnet 03 is the X pole, and the lower side of the fourth permanent magnet 04 is the X pole.

A fourth partial layout: the following arrangement may allow the magnetic fluid 2 to pass from the vicinity of the fourth permanent magnet 04 to the fourth permanent magnet 04.

1. The upper side of the fourth permanent magnet 04 is an X pole, and the right side of the sixth permanent magnet 06 is an X pole.

2. The upper side of the fourth permanent magnet 04 is an X pole, and the left side of the fifth permanent magnet 05 is an X pole.

3. The upper side of the fourth permanent magnet 04 is an X pole, and the right side of the second permanent magnet 02 is an X pole.

4. The upper side of the fourth permanent magnet 04 is an X pole, and the left side of the third permanent magnet 03 is an X pole.

Fifth partial layout: the following arrangement may allow the magnetic fluid 2 to pass from the vicinity of the fifth permanent magnet 05 to the fifth permanent magnet 05.

1. The left side of the fifth permanent magnet 05 is an X pole, and the lower side of the seventh permanent magnet 07 is an X pole.

2. The left side of the fifth permanent magnet 05 is the X pole, and the upper side of the fourth permanent magnet 04 is the X pole.

3. The left side of the fifth permanent magnet 05 is the X pole and the left side of the second permanent magnet 02 is the X pole.

Sixth partial layout: the following arrangement allows the magnetic fluid 2 to pass from the vicinity of the sixth permanent magnet 06 to the sixth permanent magnet 06.

1. The X pole is on the right side of the sixth permanent magnet 06 and the X pole is on the lower side of the seventh permanent magnet 07.

2. The right side of the sixth permanent magnet 06 is the X pole, and the upper side of the fourth permanent magnet 04 is the X pole.

3. The X pole is on the right side of the sixth permanent magnet 06 and the X pole is on the right side of the third permanent magnet 03.

Seventh partial layout: the following arrangement allows the magnetic fluid 2 to pass from the vicinity of the seventh permanent magnet 07 to the seventh permanent magnet 07.

1. The X pole is on the lower side of the seventh permanent magnet 07 and the X pole is on the right side of the sixth permanent magnet 06.

2. The X pole is on the lower side of the seventh permanent magnet 07, and the X pole is on the left side of the fifth permanent magnet 05.

When the fifth permanent magnet 05, the sixth permanent magnet 06 and the seventh permanent magnet 07 are close to the lower part of the magnetic fluid container 1, the magnetic fluid 2 can be directly adsorbed without being transferred by other permanent magnets; if the distance is far from the lower part of the magnetic fluid container 1, an auxiliary permanent magnet can be added near the position shown in fig. 2, and the first auxiliary permanent magnet 08 and the second auxiliary permanent magnet 09 can be used independently or can be used in both.

Eighth partial layout: in the case where the first auxiliary permanent magnet 08 is included, the following arrangement may cause the magnetic fluid to be transferred to the seventh permanent magnet 07.

1. The lower side of the seventh permanent magnet 07 is an X pole, and the right side of the first auxiliary permanent magnet 08 is an X pole.

Ninth partial layout: in the case where the second auxiliary permanent magnet 09 is included, the following arrangement may cause the magnetic fluid to be transferred to the seventh permanent magnet 07.

1. The X pole is positioned on the lower side of the seventh permanent magnet 07, and the X pole is positioned on the left side of the second auxiliary permanent magnet 09.

Tenth partial layout: in the case where the first auxiliary permanent magnet 08 is included, the following arrangement may cause the magnetic fluid to be transferred to the fifth permanent magnet 05.

1. The left side of the fifth permanent magnet 05 is an X pole, and the left side of the first auxiliary permanent magnet 08 is an X pole.

Eleventh partial layout: in the case where the second auxiliary permanent magnet 09 is included, the following arrangement may cause the magnetic fluid to be transferred to the sixth permanent magnet 06.

1. The left side of the sixth permanent magnet is the X pole, and the left side of the second auxiliary permanent magnet 09 is the X pole.

When the first auxiliary permanent magnet 08 is included above, it can be summarized.

1. The right side of the first auxiliary permanent magnet 08 is an X pole, and the lower side of the seventh permanent magnet 07 is an X pole.

2. The first auxiliary permanent magnet 08 has an X pole on the right side and the fifth permanent magnet 05 has an X pole on the right side.

When the second auxiliary permanent magnet 09 is included above, it can be summarized.

1. The left side of the second auxiliary permanent magnet 08 is an X pole; the lower side of the seventh permanent magnet 07 is an X pole.

2. The second auxiliary permanent magnet 08 has an X pole on the left side and the sixth permanent magnet 06 has an X pole on the left side.

In the eleven local layouts, the sum of Arabic numerals and the "latter" is a small term; in each small term, a layout description is from an Arabic numeral sequence number (such as 1, or 2, or 3, or 4) to a period number, and the magnetic poles represented by the X poles in different layout descriptions can be the same or different; in different local layouts, the magnetic poles represented by the X poles can be the same or different; i.e. the description of each sub-item above is independent.

The partial layouts are combined with each other, the layout description in each partial layout can be selected from all or only one, and after combination, the X poles forming the combination represent the same magnetic pole. The combination can obtain a path for transferring the magnetic fluid 2 from a certain position of the magnetic fluid container 1 to the vicinity of each permanent magnet, and taking the first permanent magnet as an example, the following four layouts can transfer the magnetic fluid to the first permanent magnet 01.

The upper side of the first permanent magnet 01 is an X pole, the right side of the third permanent magnet 03 is an X pole, and the right side of the sixth permanent magnet 06 is an X pole.

The upper side of the first permanent magnet 01 is an X pole, the left side of the second permanent magnet 02 is an X pole, and the left side of the fifth permanent magnet 05 is an X pole.

The upper side of the first permanent magnet 01 is an X pole, the right side of the third permanent magnet 03 is an X pole, the lower side of the fourth permanent magnet 04 is an X pole, the right side of the fifth permanent magnet is an X pole, and at the moment, the left side of the second permanent magnet 02 can be the X pole or the right side can be the X pole.

The upper side of the first permanent magnet 01 is an X pole, the left side of the second permanent magnet 02 is an X pole, the lower side of the fourth permanent magnet 04 is an X pole, the left side of the sixth permanent magnet 06 is an X pole, and at the moment, the left side of the third permanent magnet 03 can be the X pole or the right side can be the X pole.

According to the local layout, a plurality of combinations can be provided, wherein some combinations can enable the magnetic fluid to be transferred to all the permanent magnets in the nixie tube, and the combinations can be used as the overall layout of the nixie tube.

An example of an overall layout is: the magnetic poles of the inner sides of the 0-shaped permanent magnets formed by the six permanent magnets of the first permanent magnet 01, the second permanent magnet 02, the third permanent magnet 03, the fifth permanent magnet 05, the sixth permanent magnet 06 and the seventh permanent magnet 07 are the same, and the magnetic poles of the outer sides are the same; the upper side of the fourth permanent magnet 04 can be an N pole or an S pole. The first and second auxiliary

permanent magnets

08 and 09 may not be required. One such embodiment is shown in fig. 1. If the first auxiliary permanent magnet 08 is provided, the left magnetic pole of the first auxiliary permanent magnet 08 can be an N pole or an S pole. If the first auxiliary permanent magnet 09 is provided, the left magnetic pole of the second auxiliary permanent magnet 09 can be an N pole or an S pole.

When the density of the magnetic fluid is higher, the magnetic fluid 2 is positioned below the magnetic fluid container 1; when the magnetic fluid density is small, the magnetic fluid 2 is located above the magnetic fluid container 1. The embodiment with the auxiliary permanent magnet in this description is the case where the magnetic fluid 2 is below the magnetic fluid container 1; it can also be used in the case where the magnetic fluid 2 is above the magnetic fluid container 1 by rotating the drawing 180 degrees.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The magnetic fluid digital controller comprises seven groups of long-strip-shaped permanent magnets, wherein each group of long-strip-shaped permanent magnets is controlled by a permanent magnet push-pull device, and the magnetic fluid digital controller is characterized in that: the two long sides of the long-strip permanent magnet are respectively an N pole and an S pole, and the direction of the connecting line of the N pole and the S pole of the long-strip permanent magnet is parallel to the plane of the number formed by the magnetic fluid; the seven groups of long strip-shaped permanent magnets comprise: the permanent magnet comprises a first permanent magnet (01), a second permanent magnet (02), a third permanent magnet (03), a fourth permanent magnet (04), a fifth permanent magnet (05), a sixth permanent magnet (06) and a seventh permanent magnet (07); the first permanent magnet (01), the second permanent magnet (02), the third permanent magnet (03) and the fourth permanent magnet (04) are enclosed into a square shape; the fourth permanent magnet (04), the fifth permanent magnet (05), the sixth permanent magnet (06) and the seventh permanent magnet (07) are enclosed into a square shape; the seven groups of long strip-shaped permanent magnets form a figure 8.

2. The magnetic fluid digital controller according to claim 1, wherein: the upper side of the first permanent magnet (01) is an X pole; the right side of the third permanent magnet (03) is an X pole and/or the left side of the second permanent magnet (02) is an X pole.

3. The magnetic fluid digital controller according to claim 1, wherein: the left side of the second permanent magnet (02) is an X pole; the left side of the fifth permanent magnet (05) is an X pole, the upper side of the first permanent magnet (01) is an X pole, and/or the lower side of the fourth permanent magnet (04) is an X pole.

4. The magnetic fluid digital controller according to claim 1, wherein: the right side of the third permanent magnet (03) is an X pole; the right side of the sixth permanent magnet (06) is an X pole and/or the upper side of the first permanent magnet (01) is an X pole and/or the lower side of the fourth permanent magnet (04) is an X pole.

5. The magnetic fluid digital controller according to claim 1, wherein: the upper side of the fourth permanent magnet (04) is an X pole; the right side of the sixth permanent magnet (06) is an X pole and/or the left side of the fifth permanent magnet (05) is an X pole and/or the right side of the second permanent magnet (02) is an X pole and/or the left side of the third permanent magnet (03) is an X pole.

6. The magnetic fluid digital controller according to claim 1, wherein: the left side of the fifth permanent magnet (05) is an X pole; the lower side of the seventh permanent magnet (07) is an X pole, the upper side of the fourth permanent magnet (04) is an X pole, and/or the left side of the second permanent magnet (02) is an X pole.

7. The magnetic fluid digital controller according to claim 1, wherein: the right side of the sixth permanent magnet (06) is an X pole; the lower side of the seventh permanent magnet (07) is an X pole, the upper side of the fourth permanent magnet (04) is an X pole, and/or the right side of the third permanent magnet (03) is an X pole.

8. The magnetic fluid digital controller according to claim 1, wherein: the lower side of the seventh permanent magnet (07) is an X pole; the right side of the sixth permanent magnet (06) is an X pole and/or the left side of the fifth permanent magnet (05) is an X pole.

9. The magnetic fluid digital controller according to claim 1, wherein: also comprises a first auxiliary permanent magnet (08); the right side of the first auxiliary permanent magnet (08) is an X pole; the lower side of the seventh permanent magnet (07) is an X pole and/or the right side of the fifth permanent magnet (05) is an X pole.

10. The magnetic fluid digital controller according to claim 1, wherein: the permanent magnet machine also comprises a second auxiliary permanent magnet (09); the left side of the second auxiliary permanent magnet (09) is an X pole; the lower side of the seventh permanent magnet (07) is an X pole and/or the left side of the sixth permanent magnet (06) is an X pole.

11. A magnetic fluid digital controller according to any one of claims 1 to 10, wherein: the first permanent magnet (01), the second permanent magnet (02), the third permanent magnet (03), the fifth permanent magnet (05), the sixth permanent magnet (06), and the seventh permanent magnet (07) have the same magnetic poles on the inner side of the 0-shaped figure surrounded by the six permanent magnets, and the same magnetic poles on the outer side of the 0-shaped figure; the upper side of the fourth permanent magnet (04) is an N pole or an S pole.