CN203617059U - Permanent magnet device with adjustable magnetic field intensity controlled by switch - Google Patents
Permanent magnet device with adjustable magnetic field intensity controlled by switch Download PDFInfo
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- CN203617059U CN203617059U CN201320490711.2U CN201320490711U CN203617059U CN 203617059 U CN203617059 U CN 203617059U CN 201320490711 U CN201320490711 U CN 201320490711U CN 203617059 U CN203617059 U CN 203617059U
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Abstract
The utility model relates to a permanent magnet device with adjustable magnetic field intensity controlled by a switch. The permanent magnet device is formed by movable magnets, fixed magnets, pole shoes and a magnet yoke, wherein the fixed magnets are arranged on one side or two sides of the movable magnet side by side to form magnet assemblies; the magnet assemblies are in a serial connection via the magnet yoke; the pole shoes are arranged on the top of the magnet assemblies; an air gap is formed between the two pole shoes; a magnetization direction and a position of the fixed magnets are remained the same; and the movable magnets can rotate surrounding a shaft. Compared with the prior art, the permanent magnet device with adjustable magnetic field intensity controlled by the switch is advantaged by wide use range, greening energy conservancy, safety and reliability as well as small product size.
Description
Technical field
The utility model relates to a kind of permanent magnetic device, especially relates to the adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity.
Background technology
Permanent magnetic circuit is made up of magnet 1, pole shoe 2, yoke 3, air gap 4 conventionally, and typical static permanent magnetic circuit as shown in Figure 1.Owing to adopting fixing magnetic structure, the magnetic field intensity in air gap is also fixed value.
Permanent magnetic circuit produces magnetomotive force by magnet, carries out magnetic conduction by yoke, and air gap place between pole shoe forms work magnetic field.According to the difference of application scenario, permanent magnetic circuit has many different structures, has been summed up following two large classes:
(1) static permanent magnetic circuit: by fixing magnetic structure, in air gap, form certain magnetic field intensity, and unadjustable.As the application such as loud speaker, electric meter.
(2) dynamic permanent magnet magnetic circuit: by changing magnetic structure, magnetic circuit operating state is changed, realize the adjusting of magnetic field intensity in air gap.As the application such as magnet stand, magnetic separator.
For the application scenarios that needs flexible air gap internal magnetic field intensity, traditional permanent-magnetic circuit structure is often helpless, conventionally need to realize system by the structure of solenoid, by regulating the current value in solenoid to realize the control to magnetic field intensity.But this method is often unfavorable for reducing the volume of equipment and consumes in a large number electric energy.
For example, the magnetic materials such as aluminium nickel cobalt, siderochrome cobalt are in process of manufacture, and its Technology for Heating Processing needs a controlled uniform magnetic field of switch to put on the position of workpiece.The common equipment in heat treatment magnetic field in industry, is all to produce magnetic field by the structure of solenoid at present.As the heat treatment process of siderochrome cobalt, in order to form the magnetic field that Technology for Heating Processing is required, need the electric power consuming 15 kilowatts of left and right, and often equipment, in 24 hours ceaselessly turn round, cause very high power consumption.Cannot realize the switching function in magnetic field just because of traditional permanent-magnetic circuit structure, must not cause so that by the structure of solenoid.
For another, be applied to the Atomic Absorption Spectrometer with Zeeman background correction system, by regulating magnetic field intensity to make the mensuration sensitivity of different elements reach optimization.Tradition Zeeman magnetic field component can only provide constant magnetic field intensity, also there is no well to regulate the scheme of magnetic field intensity, is unfavorable for the spectrum analysis to different metal element.Comprise the existing series of products of dominant company such as Japanese, domestic, all cannot regulate the intensity in Zeeman magnetic field.The product of Jena, Germany, U.S. PE at present, by using the structure of solenoid, has made it to possess the function that magnetic field intensity regulates, but has sacrificed the feature such as small product size, ease for maintenance, and needed additional configuration high-current supply, makes products scheme more complicated.
Utility model content
The purpose of this utility model be exactly provide in order to overcome the defect that above-mentioned prior art exists that a kind of scope of application is wide, green energy conservation, the adjustable permanent magnetic device of switch controllable magnetic field intensity that safe and reliable, small product size is little.
The purpose of this utility model can be achieved through the following technical solutions:
The adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity, formed by movable magnet, fixed magnets, pole shoe, yoke, described movable magnet has two groups, described the fixed magnets one-sided or both sides at each group of movable magnet placed side by side, form magnet assembly with movable magnet, this magnet assembly is connected in series through yoke, described pole shoe has two, be located at the top of described magnet assembly, between two pole shoes, form air gap, the direction of magnetization and the position of described fixed magnets remain unchanged, and described movable magnet can sway.
The two poles of the earth of described movable magnet are consistent with the two poles of the earth of fixed magnets, and the magnetic field intensity of air gap reaches maximum.Movable the two poles of the earth of magnet are contrary with the two poles of the earth of fixed magnets, the magnetic field intensity of air gap reaches minimum value, by regulating the angle between movable magnet and fixed magnets, control the magnetic field intensity of air gap, described movable magnet drives turbine and worm rotation through manual or motor.The anglec of rotation of movable magnet by the winding machine in installing with lock function, for example, can adopt worm and gear self-locking mechanism or stepping motor braking mechanism to control the anglec of rotation of movable magnet.
Described fixed magnets and movable magnet are arranged on front or the side of device.
Described fixed magnets and movable magnet are all detachable and change contact area ratio, the volume ratio between fixed magnets and movable magnet or change magnetic material, change the magnetic field intensity in air gap.Movable magnet all can be used as in whole or in part the part playing a role in magnet, facilitate the variation control of magnetic field intensity.
The width of described air gap regulates as required.
Compared with prior art, the utlity model has following advantage:
One, the scope of application is wide: can be widely used in various fields, as fields such as the Atomic Absorption Spectrometers of heat treatment magnetic field, Zeeman background correction system, and by rotating movable magnet and can fixing at unspecified angle, can realize the continuous variation of magnetic field intensity and reliable and stable.
Two, green energy conservation: do not use electric energy can produce magnetic field, tradition electromagnetic mode needs large electric current to construct magnetic field, as while being applied in the heat treatment process of siderochrome cobalt, calculate according to 15 kilowatts of runnings in 250 days 24 hours of the equipment energy consumption of existing electromagnetic structure, an equipment can be saved approximately 90,000 degree electricity every year, and energy-saving effect is significantly increased.
Three, safe and reliable: traditional electromagnetic mode needs large electric current to construct magnetic field, and heavy current easily causes potential safety hazard, and the security performance of permanent-magnet structure device is significantly increased.
Four, small product size is little: by permanent magnetism mode, can significantly reduce the small product size of traditional electromagnetic mode.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing typical static permanent magnetic circuit;
Fig. 2 is the structural representation that traditional magnetic switch cuts out and opens;
Fig. 3 is structural representation of the present utility model in embodiment 1;
Fig. 4 is the structural representation of magnet in opening;
Fig. 5 is the structural representation of magnet in closed condition;
Fig. 6 is the structural representation of magnet in adjustment state;
Fig. 7 is main TV structure schematic diagram of the present utility model in embodiment 2;
Fig. 8 is side-looking structural representation of the present utility model in embodiment 2;
Fig. 9 is structural representation of the present utility model in embodiment 3;
Figure 10 is main TV structure schematic diagram of the present utility model in embodiment 4;
Figure 11 is side-looking structural representation of the present utility model in embodiment 4.
In figure, 1 is that magnet, 2 is that pole shoe, 3 is that yoke, 4 is that air gap, 5 is that fixed magnets, 6 is that movable magnet, 7 is that magnet steel, 8 is magnetic conductor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Comparative example
The structure of traditional magnetic switch as shown in Figure 2, is mainly made up of yoke 3 and the magnet steel 7 that is arranged in yoke 3, between magnet steel 7 and yoke 3, is connected by magnetic conductor 8, and magnet steel 7 can rotate in yoke 3.Wherein the left side is the structure that switch is closed condition, and the right is the structure that switch is opening.It should be noted that traditional magnetic switch only has 2 kinds of states of switch, the rotational angle of magnet steel 7 is limited in 0 °, 90 °.
Magnetic gauge stand is in off position: magnet steel 7 and magnetic conductor 8 are rotated to horizontal level, and the N utmost point of magnet steel 7 and the S utmost point in formation loop, inside, externally do not provide magnetic field by yoke, do not adsorb ferromagnetic workpiece.
Magnetic switch is in open mode: magnet steel 7 and magnetic conductor 8 are rotated to upright position, and the N utmost point of magnet steel 7 and the S utmost point forming loop, adsorb ferromagnetic workpiece by outside workpiece.
Embodiment 1
The permanent magnetic device that switch controllable magnetic field intensity is adjustable, its structure as shown in Figure 3, is made up of magnet, pole shoe 2, yoke 3, and wherein magnet is provided with two, is connected in series through yoke 3, and pole shoe 2 is located at the top of magnet, forms air gap 4 between bipolar shoe 2.Magnet is connected in parallel and is formed by fixed magnets 5 and movable magnet 6, and fixed magnets 5 is connected in the both sides of movable magnet 6 in parallel, and wherein, the direction of magnetization and the position of fixed magnets 5 remain unchanged, and movable magnet 6 can sway, as Figure 4-Figure 6.In the time that the two poles of the earth of movable magnet 6 and the two poles of the earth of fixed magnets 5 are consistent, the magnetic field intensity of air gap 4 reaches maximum.In the time that the two poles of the earth of movable magnet 6 are completely contrary with the two poles of the earth of fixed magnets 5, the magnetic line of force is cancelled each other, and the magnetic field intensity of air gap 4 reaches minimum value, by regulating the angle between movable magnet 6 and fixed magnets 5, controls the magnetic field intensity of air gap 4.In addition, the anglec of rotation of movable magnet 6 by the winding machine in installing with lock function, for example, can adopt worm and gear self-locking mechanism or stepping motor braking mechanism to control the anglec of rotation of movable magnet, controls the stability of the magnetic field intensity of air gap.
The adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity, its structure as Figure 7-8, the device of its structure and embodiment 1 is basic identical, difference is, movable magnet 6 is arranged on the side of device, be applicable to the occasion of positive limited space, this kind of permanent magnetic device can be applied in Zeeman AAS instrument.
The adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity, as shown in Figure 9, the device of its structure and embodiment 1 is basic identical for its structure, and difference is, the thickness of movable magnet 6 is greater than the thickness of fixed magnets 5, movable magnet formed with magnetic conductor by magnet and together with rotation.This kind of permanent magnetic device can be applied in heat treatment magnetic field.
The adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity, its structure is as shown in Figure 10-11, the device of its structure and embodiment 3 is basic identical, difference is, movable magnet 6 is arranged on the side of device, be applicable to the occasion of positive limited space, this kind of permanent magnetic device can be applied in heat treatment magnetic field.
Claims (4)
1. the adjustable permanent magnetic device of switch controllable magnetic field intensity, it is characterized in that, this permanent magnetic device is by movable magnet, fixed magnets, pole shoe, yoke composition, described movable magnet has two groups, described the fixed magnets one-sided or both sides at each group of movable magnet placed side by side, form magnet assembly with movable magnet, this magnet assembly is connected in series through yoke, described pole shoe has two, be located at the top of described magnet assembly, between two pole shoes, form air gap, the direction of magnetization and the position of described fixed magnets remain unchanged, described movable magnet can sway.
2. the adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity according to claim 1, is characterized in that, described movable magnet is manual rotation or motor rotation, regulates the magnetic field intensity in air gap by the magnetic structure that changes magnet.
3. the adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity according to claim 2, is characterized in that, described movable magnet drives turbine and worm rotation through manual or motor.
4. the adjustable permanent magnetic device of a kind of switch controllable magnetic field intensity according to claim 1, is characterized in that, described fixed magnets and movable magnet are arranged on front or the side of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490711.2U CN203617059U (en) | 2013-08-12 | 2013-08-12 | Permanent magnet device with adjustable magnetic field intensity controlled by switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490711.2U CN203617059U (en) | 2013-08-12 | 2013-08-12 | Permanent magnet device with adjustable magnetic field intensity controlled by switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617059U true CN203617059U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490711.2U Expired - Fee Related CN203617059U (en) | 2013-08-12 | 2013-08-12 | Permanent magnet device with adjustable magnetic field intensity controlled by switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376956A (en) * | 2013-08-12 | 2015-02-25 | 上海浩灵磁电器件有限公司 | Switch-controllable and magnetic field strength-adjustable permanent magnet device |
| CN113113208A (en) * | 2021-04-12 | 2021-07-13 | 西红柿科技（武汉）有限公司 | Adjustable magnetic bridge for intelligent magnetic flux leakage detection |
-
2013
- 2013-08-12 CN CN201320490711.2U patent/CN203617059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376956A (en) * | 2013-08-12 | 2015-02-25 | 上海浩灵磁电器件有限公司 | Switch-controllable and magnetic field strength-adjustable permanent magnet device |
| CN113113208A (en) * | 2021-04-12 | 2021-07-13 | 西红柿科技（武汉）有限公司 | Adjustable magnetic bridge for intelligent magnetic flux leakage detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIELING MAGNETIC EQUIPMENT CO., LTD., SHANGHAI Effective date: 20150908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150908 Address after: Jiading District Juyuan New Area Chang Bridge 201800 eight Shanghai city group Patentee after: SHANGHAI HAOLING MAGNETOELECTRIC DEVICE CO., LTD. Patentee after: Shanghai Jieling Magnetic Material & Devices Co.,Ltd. Address before: Jiading District Juyuan New Area Chang Bridge 201800 eight Shanghai city group Patentee before: SHANGHAI HAOLING MAGNETOELECTRIC DEVICE CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20200812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |