CN214199267U - Cylinder array type magnet for room temperature magnetic refrigerator - Google Patents
Cylinder array type magnet for room temperature magnetic refrigerator Download PDFInfo
- Publication number
- CN214199267U CN214199267U CN202023343567.9U CN202023343567U CN214199267U CN 214199267 U CN214199267 U CN 214199267U CN 202023343567 U CN202023343567 U CN 202023343567U CN 214199267 U CN214199267 U CN 214199267U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- array
- magnetic field
- magnet
- room temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model discloses a room temperature magnetic refrigerator is with cylinder type array magnet, include: a magnetic block and a metal shell; the shape of the metal shell is a shape closed structure, even number of magnetic blocks are arranged on the inner wall of the metal shell to form a magnetic field array, and the middle part of the magnetic field array is a cylindrical air gap; end covers are arranged at two ends of the metal shell and pressed on the end faces of the magnetic blocks, and the magnetic field array forms a closed magnetic field in the cylindrical air gap. The utility model discloses the cylinder type array magnet that obtains has avoidd the magnetic leakage phenomenon, has improved magnetic field intensity greatly.
Description
Technical Field
The utility model relates to a room temperature magnetic refrigeration field, concretely relates to room temperature magnetic refrigeration machine cylinder type array magnet.
Background
At present, the research of the room temperature magnetic refrigerator mainly focuses on a reciprocating type magnetic refrigerator and a rotating type magnetic refrigerator, wherein a permanent magnetic field for the reciprocating type magnetic refrigerator is a partially closed magnetic circuit magnetic field, and a fully closed magnetic circuit magnetic field for the rotating type magnetic refrigerator is provided.
The most simple permanent magnet for magnetic refrigeration is a single magnet, and a space magnetic field is formed on the surface of a magnetic pole, but the magnetic flux density is low and is not uniform. In order to increase and obtain a uniform magnetic field, two magnets can be superposed to form a simple semi-closed magnetic circuit, but the method has low central magnetic field intensity and low refrigerating capacity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a room temperature magnetic refrigerator is with cylinder type array magnet, has avoidd the magnetic leakage phenomenon, has improved magnetic field intensity greatly.
In order to achieve the above object, the utility model uses the technical solution that:
the cylindrical array type magnet for the room temperature magnetic refrigerator comprises: a magnetic block and a metal shell; the shape of the metal shell is a shape closed structure, even number of magnetic blocks are arranged on the inner wall of the metal shell to form a magnetic field array, and the middle part of the magnetic field array is a cylindrical air gap; end covers are arranged at two ends of the metal shell and pressed on the end faces of the magnetic blocks, and the magnetic field array forms a closed magnetic field in the cylindrical air gap.
Furthermore, the metal shell is cylindrical, the number of the magnetic blocks on the same layer is even, and the magnetic field array is composed of 3-5 layers of magnetic blocks.
Furthermore, the magnetic block is in the shape of an arc-surface cylinder, the inner side surface and the outer side surface are arc-shaped surfaces, and the end part is a rectangular surface.
Furthermore, the magnetic blocks are NdFeB magnetic blocks, and the NdFeB magnetic blocks on the same layer in the magnetic field array have different magnetization angles.
Further, the NdFeB magnetic block includes 4 magnetization angles of 0 °, 22 °, 67 °, and 90 °, respectively.
Further, two opposite magnets on the same layer in the magnetic field array are in mirror symmetry in space.
The utility model discloses technical effect includes:
the utility model is provided for the magnetic field system of the prior reciprocating magnetic refrigerator, the magnetic field system of the prior reciprocating magnetic refrigerator has simple structure, no airtight space and serious magnetic leakage; consequently for solving the magnetic leakage phenomenon, the utility model provides an adopt the airtight magnetic field's of metal casing scheme, avoided the magnetic leakage phenomenon, improved magnetic field intensity greatly.
The cylindrical array type magnet for the room temperature magnetic refrigerator has the characteristics of no magnetic leakage in the center, high magnetic field intensity, closed magnetic field and the like. The magnet block is under the effect of backup pad, through adjusting nut with magnet fixed mounting on metal casing, has improved assembly work efficiency.
Drawings
Fig. 1 is a schematic structural view of a cylindrical array magnet for a middle-temperature magnetic refrigerator according to the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
The utility model discloses a gather the magnetic theory, develop cylinder type array magnetic field, the angle between magnetic path and the magnetic path magnetization direction is less, and the magnetic field of constitution is even more, and magnetic flux density is also big more, can make the magnetic line of force obtain abundant assembling like this. On the basis of the magnetic circuit, the number of the magnets can be increased, and a uniform magnetic field which has good magnetic refrigeration capacity and is converged in the same direction can be obtained.
As shown in fig. 1, it is a schematic structural diagram of a cylindrical array magnet for a middle-temperature magnetic refrigerator according to the present invention.
The cylindrical array type magnet for the room temperature magnetic refrigerator comprises: the magnetic block 1 and the metal shell 2; the shape of the metal shell 2 is a cylindrical closed structure, an even number of magnetic blocks 1 are arranged on the inner wall of the metal shell 2 to form a magnetic field array, and the middle of the magnetic block array is a cylindrical air gap 3.
The number of the magnetic blocks 1 on the same layer is even, and the magnetic field array is composed of 3-5 layers of the magnetic blocks 1. The magnetic block 1 is in the shape of an arc-surface cylinder, the inner side surface and the outer side surface are arc-shaped surfaces, and the end part is a rectangular surface.
The magnetic block 1 is an NdFeB magnetic block, the NdFeB magnetic block has different magnetization angles, and the 4 magnetization angles are 0 degree, 22 degrees, 67 degrees and 90 degrees respectively. The assembly sequence of the NdFeB magnetic blocks is as follows: the magnetization angle is 90 degrees, 67 degrees, 22 degrees, 0 degrees, 22 degrees, 67 degrees and 90 degrees. The magnetic field is designed into a cylindrical array structure, and two opposite magnets 1 are in mirror symmetry in space.
The metal shell 2 is of a closed structure, end covers are arranged at two ends of the metal shell, the end covers are pressed on the end faces of the magnetic blocks 1, and the cylindrical array type magnets form a closed magnetic field in the cylindrical air gaps 3. The thickness of the metal housing 2 is greater than 1.5 mm.
The working point Ji of the magnetic block 1 is more than or equal to 0.9Br, and the square degree of a demagnetization curve is close to 1.
The assembling method of the cylindrical array type magnet for the room temperature magnetic refrigerator comprises the following specific steps:
step 1: the outer arc surface of a magnetic block 1(NdFeB magnet) with a 90-degree magnetization angle is tightly attached to the inner side wall of a metal shell 2, and then the NdFeB magnet with the-90-degree magnetization angle is placed at a relative position in an array mode;
the two ends of the adjusting die are provided with a supporting plate and a supporting bolt, the supporting bolt is provided with an adjusting nut, the supporting bolt is a stud, the two ends of the stud are connected with the supporting plate, the two magnetic blocks 1 in the same magnetic field direction can be installed in the metal shell 2 by rotating the adjusting nut, and the supporting plate presses the two magnetic blocks 1 on the inner wall of the metal shell 2. The adjusting mold is placed in a metal shell 2, two magnetic blocks 1 with the same magnetic field direction are placed on two sides of the adjusting mold, and the magnetic blocks 1 are pressed on the inner wall of the metal shell 2 through the adjusting mold.
Step 2: after the magnetic block 1 with the 90-degree magnetization angle is installed, loosening an adjusting nut in the middle of an adjusting mold, taking out the adjusting mold, and then taking out the magnetic block 1 with the-90-degree magnetization angle on the opposite side;
and step 3: and sequentially installing the rest magnetic blocks 1 into the metal shell 2 according to the descending or ascending sequence of the magnetization angle.
The NdFeB magnetic block is assembled according to a Halbach rotation theory, and the installation sequence is as follows: the magnetic block 1 with the magnetization angle of 90 degrees, the magnetic block 1 with the magnetization angle of 67 degrees, the magnetic block 1 with the magnetization angle of 22 degrees, the magnetic blocks 1 with the magnetization angles of 0 degrees, the magnetic block 1 with the magnetization angle of-22 degrees, the magnetic block 1 with the magnetization angle of-67 degrees and the magnetic block 1 with the magnetization angle of-90 degrees.
Placing the side edge of the NdFeB magnet with the magnetizing angle of 67 degrees close to the NdFeB magnet with the magnetizing angle of 90 degrees, and then placing the NdFeB magnet with the magnetizing angle of-67 degrees at the opposite side position in an array mode; and after the NdFeB magnet with the magnetization angle of 67 degrees is installed, loosening the adjusting nut in the middle of the adjusting mold, then taking out the adjusting mold, and taking out the NdFeB magnet with the magnetization angle of 67 degrees at the other end of the array. And sequentially installing NdFeB magnets with the magnetization angles of 22 degrees, -22 degrees and two 0 degrees according to the regular sequence of decreasing angles.
A magnetic field with certain intensity is generated in the cylindrical air gap 3, and the design method has the effect of enhancing the magnetic field intensity in the 0-degree direction.
The utility model provides a magnetic refrigerator is with cylinder type array magnet, through selecting for use magnet operating point Ji to be greater than or equal to 0.9Br, demagnetization curve squareness degree is close to 1 NdFeB magnet, and according to the mounting means of certain angle order, the outsourcing metal casing 1's mode obtains the seal good, and 0 orientation magnetic field obtains the cylinder type array magnetic field of strengthening.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (6)
1. The utility model provides a room temperature magnetic refrigerator is with cylinder type array magnet which characterized in that includes: a magnetic block and a metal shell; the shape of the metal shell is a shape closed structure, even number of magnetic blocks are arranged on the inner wall of the metal shell to form a magnetic field array, and the middle part of the magnetic field array is a cylindrical air gap; end covers are arranged at two ends of the metal shell and pressed on the end faces of the magnetic blocks, and the magnetic field array forms a closed magnetic field in the cylindrical air gap.
2. The cylindrical array magnet for a room temperature magnetic refrigerator as claimed in claim 1, wherein the metal case has a cylindrical shape, the number of the magnetic blocks located at the same layer is even, and the magnetic field array is composed of 3-5 layers of magnetic blocks.
3. The cylindrical array magnet for a room temperature magnetic refrigerator of claim 1, wherein the magnet is in the shape of an arc-shaped cylinder, the inner side and the outer side are arc-shaped surfaces, and the end is a rectangular surface.
4. The cylindrical array magnet for a room temperature magnetic refrigerator as claimed in claim 2, wherein the magnetic blocks are NdFeB magnetic blocks, and the NdFeB magnetic blocks on the same layer in the magnetic field array have different magnetization angles.
5. The cylinder array magnet for a room temperature magnetic refrigerator of claim 4, wherein the NdFeB magnet blocks include 4 magnetization angles of 0 °, 22 °, 67 ° and 90 °, respectively.
6. The cylinder array type magnet for room temperature magnetic refrigerator of claim 4, wherein two opposite magnets on the same plane of the magnetic field array are in mirror symmetry in space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023343567.9U CN214199267U (en) | 2020-12-31 | 2020-12-31 | Cylinder array type magnet for room temperature magnetic refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023343567.9U CN214199267U (en) | 2020-12-31 | 2020-12-31 | Cylinder array type magnet for room temperature magnetic refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214199267U true CN214199267U (en) | 2021-09-14 |
Family
ID=77632722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023343567.9U Active CN214199267U (en) | 2020-12-31 | 2020-12-31 | Cylinder array type magnet for room temperature magnetic refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214199267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594963A (en) * | 2020-12-31 | 2021-04-02 | 包头稀土研究院 | Cylindrical array type magnet for room temperature magnetic refrigerator and assembling method thereof |
-
2020
- 2020-12-31 CN CN202023343567.9U patent/CN214199267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594963A (en) * | 2020-12-31 | 2021-04-02 | 包头稀土研究院 | Cylindrical array type magnet for room temperature magnetic refrigerator and assembling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214199267U (en) | Cylinder array type magnet for room temperature magnetic refrigerator | |
| US20180048209A1 (en) | Permanent-magnet-embedded electric motor for compressor, compressor, and refrigeration cycle device | |
| CN102761211A (en) | Permanent-magnetic rotor with non-magnetic-permeable distance sleeve and method for manufacturing permanent-magnet rotor | |
| CN101256874B (en) | Permanent magnetism magnetic body system for rotating magnetic refrigerating device | |
| US10483815B2 (en) | Rotor, electric motor, compressor, and refrigeration air conditioner | |
| CN102761210B (en) | Composite permanent-magnet rotor for permanent-magnet motor and manufacturing method thereof | |
| KR20180099851A (en) | Rotor, electric motor, compressor, and refrigeration air conditioner | |
| CN112594963A (en) | Cylindrical array type magnet for room temperature magnetic refrigerator and assembling method thereof | |
| KR100758067B1 (en) | Electromagnetic actuator, and stirling engine | |
| CN201797386U (en) | Permanent magnet motor rotor | |
| CN109887703B (en) | NdFeB (neodymium iron boron) orientation device of square wave magnetic ring | |
| CN211557089U (en) | Cylindrical single-air-gap inner rotor motor | |
| CN211177504U (en) | double-C-shaped magnetic field for rotary room-temperature magnetic refrigerator | |
| CN204204545U (en) | A kind of efficient magnetic field structure for room-temperature magnetic refrigerator | |
| CN201975884U (en) | Permanent magnet rotor with nonmagnetic isolation sleeve | |
| CN218274229U (en) | Shielding type semi-magnetic ring structure | |
| CN212543474U (en) | Cylindrical single-air-gap inner rotor motor | |
| US20150132161A1 (en) | Stator of linear compressor and fixing method thereof, linear motor, and linear compressor | |
| CN206790322U (en) | Core structure, motor, compressor and refrigeration plant | |
| CN211400365U (en) | Magnetic refrigeration system and magnetic refrigerator with same | |
| CN211296526U (en) | Moving-magnetic cylindrical linear motor for refrigerator | |
| CN215451072U (en) | Inner and outer double-layer magnetic ring structure | |
| CN2406437Y (en) | Linear long-stroke loudspeaker | |
| CN218787638U (en) | Magnetic refrigeration assembly and magnetic refrigeration system | |
| CN2569479Y (en) | Closing magnetic path structure of speaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |