CN207865754U

CN207865754U - Magnetic refrigerator

Info

Publication number: CN207865754U
Application number: CN201721549155.6U
Authority: CN
Inventors: 汪魁; 路文博; 罗胜; 杨蓉
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2018-09-14
Anticipated expiration: 2027-11-16

Abstract

The utility model provides a kind of magnetic refrigerator, including rotary shaft, a plurality of heat exchanging pipe and at least two magnetic field generators that are set to the rotary shaft side, all magnetic field generators are uniformly distributed in the rotary shaft.Magnetic refrigerator provided by the utility model, by the way that mutually independent heat exchanging pipe is arranged, it can ensure that each heat exchanging pipe is in the state of autonomous working, interference is not generated between each other, fluid communication will not be generated, and it can ensure to be required to carry out degaussing heat dissipation by magneto-caloric material bed when fluid is to the cold end flow by the way that two magneto-caloric material beds are arranged, preventing the fluid of the different temperatures in same heat exchanging pipe from mixing causes refrigerating capacity to decline, the cold for making full use of magnetic working medium to generate, by the way that driving device is arranged, mobilization dynamic can be provided for the fluid in each heat exchanging pipe, and the flow direction of fluid can be controlled, avoid complicated fluid distribution method, simplied system structure.

Description

Magnetic refrigerator

Technical field

The utility model is related to magnetic refrigeration technology field, especially a kind of magnetic refrigerator.

Background technology

Magnetic Refrigeration Technique is a kind of New Refrigerating technology based on magnetothermal effect, and magnetothermal effect refers to magneto-caloric material in magnetic The physical phenomenon of heat release or heat absorption when field enhancing or decrease.When magnetic field adds magnetic to magneto-caloric material, magneto-caloric material heating；Remove magnetic When field, magneto-caloric material turns cold, and magnetic refrigeration is exactly the purpose that may be implemented to freeze using the phenomenon that magnetothermal effect, however existing rotation Rotatable magnetic refrigerator is there are pipeline cycle is complicated, the problems such as needing fluid reversing distributing valve.

Utility model content

In order to solve the above-mentioned technical problem, provide that a kind of flow path is simple and magnetic refrigerator without using distributing valve.

A kind of magnetic refrigerator, including rotary shaft, a plurality of heat exchanging pipe and at least two for being set to the rotary shaft side Magnetic field generator, all magnetic field generators are uniformly distributed in the rotary shaft, and at least one magnetic field generator With magnetic space is added, at least one magnetic field generator has degaussing space, has been arranged in series on each heat exchanging pipe Two magneto-caloric material beds, all magneto-caloric material beds are formed after may be contained within described plus magnetic space and the degaussing Space Rotating Two magneto-caloric material beds changing in magnetic area, and act on the same heat exchanging pipe in synchronization change magnetic region Domain is magnetic different, and the both ends of each heat exchanging pipe are respectively formed hot junction, and the centre position of two magneto-caloric material beds is formed Cold end, and the fluid in each heat exchanging pipe can flow between two hot junctions and the cold end.

Axisymmetrical of two magneto-caloric material beds about the rotary shaft on each heat exchanging pipe.

The magnetic refrigerator further includes driving device, and the driving device is connected to all heat exchanging pipes.

The driving device is connected to at least one hot junction of each heat exchanging pipe.

The described driving device connection in two hot junctions of each heat exchanging pipe, and can be in the driving device Drive under so that fluid is back and forth flowed in the heat exchanging pipe.

The driving device includes a plurality of piston mechanisms, and a hot junction of each heat exchanging pipe is communicated with one A piston mechanism, and with the opposite in phase of same matched two piston mechanisms of heat exchanging pipe.(piston machine Structure can be arranged directly on the one end far from the magneto-caloric material bed in hot junction so that the piston mechanism can be drawn fluid into Inside forms reciprocation cycle in releasing)

Fluid inlet and fluid outlet are provided on the piston mechanism, the fluid inlet is with the hot junction far from described One end of magneto-caloric material bed is connected to, and the fluid outlet is connected to the hot junction with the centre position of the magneto-caloric material bed.

The fluid inlet and the fluid outlet are both provided with check valve, and the stream of the check valve of the fluid inlet Dynamic direction is directed toward inside the piston mechanism, and the hot junction and the magnetic are directed toward in the flow direction of the check valve of the fluid outlet The centre position of hot material bed.

The magnetic refrigerator further includes rotational power plant and piston mechanism driving structure, and the rotational power plant is institute It states piston mechanism driving structure and/or the rotary shaft provides rotational power, the piston mechanism driving structure is set to described In rotary shaft, and all piston mechanisms can be driven to move back and forth under the rotation of the rotary shaft.

It is matched with two piston mechanisms of each heat exchanging pipe with a piston mechanism driving structure, All piston mechanism driving structures may be contained in the rotary shaft, and be driven with the rotation of the rotary shaft corresponding The piston mechanism.

The piston mechanism driving structure is cam mechanism, is both provided with push rod on the piston mechanism, all described to push away Bar protrudes surface of the one end of the corresponding piston mechanism with the cam mechanism and is engaged.(if push rod, Neng Gouli Make the reset of another piston mechanism or imbibition with the thrust of opposite piston mechanism)

The driving device includes piston cylinder and piston, and the piston is set in the piston cylinder and by the piston cylinder Both ends be divided into the pressure chambers of two variable volumes, two hot junctions of each heat exchanging pipe respectively with the same piston Two pressure chambers on cylinder correspond connection.(piston is driven by reciprocating motion motor)

Fluid inlet and fluid outlet are both provided on each pressure chamber, the fluid inlet and the hot junction are separate One end of the magneto-caloric material bed is connected to, and the fluid outlet connects with the hot junction and the centre position of the magneto-caloric material bed It is logical.

The driving device includes two-way pump, each two-way pump be respectively provided with there are two inlet and outlet, each heat exchange Two hot junctions of pipeline are connected to two inlet and outlet one-to-one correspondence of the same two-way pump.

Each import and export is equipped with the first connecting pipeline and the second connecting pipeline, first connecting pipeline and institute State one end connection of the hot junction far from the magneto-caloric material bed, second connecting pipeline and the hot junction and the magneto-caloric material bed Centre position connection.

Check valve is both provided on first connecting pipeline and second connecting pipeline, first connecting pipeline The flow direction of check valve is directed toward inside the piston mechanism, and institute is directed toward in the flow direction of the check valve of second connecting pipeline State the centre position in hot junction and the magneto-caloric material bed.

Each magnetic field generator includes a rotor and a stator, and all rotors are uniformly distributed in described Rotor assembly is formed in rotary shaft and is rotated with the rotary shaft, and all track rings are around being set to the outer of the rotor assembly Side forms stator module, and forms the described of annular between the stator module and the rotor assembly and change magnetic area, Suo Yousuo It states magneto-caloric material bed and is fixedly installed on the stator module and changed on the side of magnetic area described in.

The stator module is provided with yoke far from described change on the side of magnetic area.

The rotor and/or the stator are made of permanent magnet.

Recessed portion is provided on the magnetic field generator, and the recessed portion forms described plus magnetic space or degaussing space, All magnetic field generators are uniformly distributed in the rotary shaft, and all recessed portions rotate to be formed with the rotary shaft It is described to change magnetic area.

The section of the magnetic field generator is C-shaped, and the c-shaped opening of all magnetic field generators is directed away from the rotation The direction of shaft.

The magnetic field generator is made of an at least block permanent magnet；Or the magnetic field generator by an at least block permanent magnet with At least one piece of soft magnet composition.

The magnetic refrigerator further includes cool end heat exchanger, and the cold end of all heat exchanging pipes is juxtaposed on the cold end Central refrigerating in heat exchanger；The magnetic refrigerator further includes hot end heat exchanger, and the hot junction of all heat exchanging pipes is set up in parallel Heat dissipation is concentrated in the hot end heat exchanger.

The magnetic refrigerator further includes rotary shaft driving mechanism, and the rotary shaft driving mechanism is directly or by transmission mechanism The rotary shaft is driven to rotate.

The magnetic refrigerator further includes fan, and the fan is set in the rotary shaft, and the outlet air court of the fan To the hot junction of the heat exchanging pipe.

Magnetic refrigerator provided by the utility model can ensure each heat exchange by the way that mutually independent heat exchanging pipe is arranged Pipeline is in the state of autonomous working, does not generate interference between each other, will not generate fluid communication, and passes through setting Two magneto-caloric material beds can ensure to be required to carry out degaussing heat dissipation by magneto-caloric material bed when fluid is to the cold end flow, Preventing the fluid of the different temperatures in same heat exchanging pipe from mixing causes refrigerating capacity to decline, and makes full use of magnetic working medium to generate cold Amount can provide mobilization dynamic, and can be to the stream of fluid by the way that driving device is arranged for the fluid in each heat exchanging pipe To being controlled, complicated fluid distribution method, simplied system structure are avoided.

Description of the drawings

Fig. 1 is the structural schematic diagram of magnetic refrigerator provided by the utility model；

Fig. 2 is another structural schematic diagram of magnetic refrigerator provided by the utility model；

Fig. 3 is another structural schematic diagram of magnetic refrigerator provided by the utility model；

Fig. 4 is another structural schematic diagram of magnetic refrigerator provided by the utility model；

Fig. 5 is another structural schematic diagram of magnetic refrigerator provided by the utility model；

Fig. 6 is the side view of magnetic refrigerator provided by the utility model

In figure：

1, rotary shaft；2, heat exchanging pipe；3, magnetic field generator；4, piston mechanism；5, cam mechanism；6, piston cylinder；7, living Plug；61, pressure chamber；11, magneto-caloric material bed；22, hot junction；21, cold end；31, rotor；32, stator；33, recessed portion；41, first Piston mechanism；42, second piston mechanism；111, the first magneto-caloric material bed；112, the second magneto-caloric material bed；10, hot end heat exchanger； 9, cool end heat exchanger.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this Utility model is not used to limit the utility model.

Magnetic refrigerator as shown in Figures 1 to 6, including rotary shaft 1, a plurality of heat exchange for being set to 1 side of the rotary shaft Pipeline 2 and at least two magnetic field generators 3, all magnetic field generators 3 are uniformly distributed in the rotary shaft 1, and at least One magnetic field generator 3 has plus magnetic space, and at least one magnetic field generator 3 has degaussing space, each described It is arranged in series on heat exchanging pipe 2 there are two magneto-caloric material bed 11, it is empty that all magneto-caloric material beds 11 may be contained within described plus magnetic Between and the degaussing Space Rotating after formed change in magnetic area, and acted on the same heat exchanging pipe 2 in synchronization Two magneto-caloric material beds 11 change that magnetic area is magnetic different, and the both ends of each heat exchanging pipe 2 are respectively formed hot junction 22, The centre position of two magneto-caloric material beds 11 forms cold end 21, and the fluid in each heat exchanging pipe 2 can be two It is flowed between a hot junction 22 and the cold end 21, all magnetic field generators 3 are rotated with the rotary shaft 1 so that institute There is the magneto-caloric material bed 11 constantly in by adding magnetic space and degaussing space, and then continuous plus magnetic and degaussing, to make place The fluid in portion carries out adding magnetic or degaussing in the inner, and the variation of temperature is realized in adding magnetic or demagnetization process, all to pass through degaussing The fluid temperature (F.T.) in space, which reduces and flow to cold end 21 and absorb heat, achievees the effect that refrigeration, and the fluid flow direction Jing Guo cold end 21 adds Adding magnetic in magnetic space, temperature, which increases and flows to hot junction 22, to radiate, for same heat exchanging pipe 2, internal flow flow direction The magneto-caloric material bed 11 of cold end 21 is in degaussing space, it is all flow to after the fluid degaussing of the magneto-caloric material bed 11 cooling it is cold 21 heat absorption of end, while another magneto-caloric material bed 11 on heat exchanging pipe 2 is in plus magnetic space, fluid therethrough adds magnetic to heat up, And flow to hot junction 22 and radiate, while all magnetic field generators 3 are rotated with rotary shaft 1, add magnetic space and degaussing space Position change, the fluid flow direction in heat exchanging pipe 2 be also changed so that realize keep persistently making in cold end 21 It is cold, it radiates in two hot junctions 22 of heat exchanging pipe 2.

Wherein, the fluid flowed in all heating pipelines 2 is magnetic working medium.

Axisymmetrical of two magneto-caloric material beds 11 about the rotary shaft 1 on each heat exchanging pipe 2, side Just the installation of heat exchanging pipe 2 is also convenient for installing all magnetic field generators 3.

The magnetic refrigerator further includes driving device, and the driving device is connected to all heat exchanging pipes 2, is passed through Driving device realizes the change of the flow direction of the fluid in all heat exchanging pipes 2, while driving device and all magnetic fields Generator 3 matches, and realizes the magnetic field space changed while flowing to change residing for magneto-caloric material bed 11, ensures that fluid passes through Persistently freeze when cold end 21.

The driving device is connected to at least one hot junction 22 of each heat exchanging pipe 2, by being driven in hot junction 22 The flow direction of fluid in the heat exchanging pipe 2, type of drive may be used the modes such as absorption and discharge and fluid driven to flow With the change of flow direction.

The described driving device connection in two hot junctions 22 of each heat exchanging pipe 2, and can be in the driving Fluid is set back and forth to be flowed in the heat exchanging pipe 2 under the drive of device.

The driving device includes a plurality of piston mechanisms 4, and a hot junction 22 of each heat exchanging pipe 2 is connected to There are one the piston mechanism 4, and with the opposite in phase of 2 matched two piston mechanisms 4 of the same heat exchanging pipe, Wherein piston mechanism 4 can be arranged directly on the one end far from the magneto-caloric material bed 11 in hot junction 22 so that the piston machine Structure 4 can draw fluid into inside and release to form reciprocation cycle again.

Fluid inlet and fluid outlet are provided on the piston mechanism 4, the fluid inlet and the hot junction 22 are separate One end of the magneto-caloric material bed 11 is connected to, the interposition of the fluid outlet and the hot junction 22 and the magneto-caloric material bed 11 Set connection so that piston mechanism 4 radiates in draw fluid process medium fluid by hot junction 22, and fluid is from fluid when releasing fluid Outlet carries out degaussing cooling in flowing directly out into magneto-caloric material bed 11 and flows to the refrigeration of cold end 21.

The fluid inlet and the fluid outlet are both provided with check valve, and the stream of the check valve of the fluid inlet Dynamic direction is directed toward inside the piston mechanism 4, and the hot junction 22 and institute are directed toward in the flow direction of the check valve of the fluid outlet The centre position for stating magneto-caloric material bed 11 ensures the one-way flow of fluid by the one-way conduction principle of check valve, and avoiding makes The problem of with dispensing valve.

The magnetic refrigerator further includes 4 driving structure of rotational power plant and piston mechanism, and the rotational power plant is 4 driving structure of the piston mechanism and/or the rotary shaft 1 provide rotational power, and 4 driving structure of the piston mechanism is set to In the rotary shaft 1, and all piston mechanisms 4 can be driven to move back and forth under the rotation of the rotary shaft 1, it is same to change Two piston mechanisms 4 in pipe line 2 can be driven two piston mechanisms by 4 driving structure of piston mechanism described in one or two 4 drive the fluid in the heat exchanging pipe 2 to flow with the state of opposite in phase.

Match with two piston mechanisms 4 of each heat exchanging pipe 2 and 4 driving structure of the piston mechanism It closes, all 4 driving structures of the piston mechanism may be contained in the rotary shaft 1, and be driven with the rotation of the rotary shaft 1 The corresponding piston mechanism 4.

4 driving structure of the piston mechanism is cam mechanism 5, and push rod is both provided on the piston mechanism 4, all described Push rod protrudes surface of the one end of the corresponding piston mechanism 4 with the cam mechanism 5 and is engaged, wherein the push rod The thrust of opposite piston mechanism 4 can be utilized to make the reset of another piston mechanism 4 in same heat exchanging pipe 2 or imbibition, it is real The purpose of fluid flowing in existing whole heat exchanging pipe 2.

The driving device includes piston cylinder 6 and piston 7, and the piston 7 is set in the piston cylinder 6 and by the work The both ends of plug cylinder 6 are divided into the pressure chamber 61 of two variable volumes, two hot junctions 22 of each heat exchanging pipe 2 respectively with it is same Two pressure chambers 61 on a piston cylinder 6 correspond connection, and exchange is realized by the volume variation of two pressure chambers 61 The process of absorption or the releasing of fluid in pipe line 2.

Wherein, the maximum volume of the pressure chamber 61 can ensure proper flow of the fluid in the heat exchanging pipe 2.

Fluid inlet and fluid outlet, the fluid inlet and the hot junction 22 are both provided on each pressure chamber 61 One end far from the magneto-caloric material bed 11 is connected to, in the fluid outlet and the hot junction 22 and the magneto-caloric material bed 11 Between position be connected to.

The fluid inlet and the fluid outlet are both provided with check valve, and the stream of the check valve of the fluid inlet Dynamic direction is directed toward inside the piston mechanism 4, and the hot junction 22 and institute are directed toward in the flow direction of the check valve of the fluid outlet State the centre position of magneto-caloric material bed 11.

The driving device includes two-way pump 8, and each two-way pump 8 is respectively provided with there are two inlet and outlet, each described to change Two hot junctions 22 of pipe line 2 are connected to two inlet and outlet one-to-one correspondence of the same two-way pump 8.

Each import and export is equipped with the first connecting pipeline and the second connecting pipeline, first connecting pipeline and institute State one end connection of the hot junction 22 far from the magneto-caloric material bed 11, second connecting pipeline and the hot junction 22 and magnetic heat Material bed 11 centre position connection.

Check valve is both provided on first connecting pipeline and second connecting pipeline, first connecting pipeline The flow direction of check valve is directed toward inside the piston mechanism 4, and the flow direction of the check valve of second connecting pipeline is directed toward The centre position in the hot junction 22 and the magneto-caloric material bed 11.

Each magnetic field generator 3 includes a rotor 31 and a stator 32, and all rotors 31 uniformly divide It is distributed in the rotary shaft 1 and forms 31 component of rotor and rotated with the rotary shaft 1, all stators 32 surround and are set to institute The outside for stating 31 component of rotor forms 32 component of stator, and annular is formed between 31 component of 32 component of the stator and the rotor It is described change magnetic area, all magneto-caloric material beds 11 are fixedly installed on 32 component of the stator and change magnetic area described in On side, the variation for adding magnetic space and degaussing space is realized by the rotation of rotor 31, is realized in the magnetic changed in magnetic area Fluid in hot material bed 11 carries out plus magnetic or demagnetization.

32 component of the stator is provided with yoke far from described change on the side of magnetic area, the yoke uses soft magnetic bodies material Material is made, and increases the effect for adding magnetic space or degaussing space, increases refrigerating capacity.

The rotor 31 and/or the stator 32 are made of permanent magnet.

Recessed portion 33 is provided on the magnetic field generator 3, and the recessed portion 33 forms described plus magnetic space or degaussing Space, all magnetic field generators 3 are uniformly distributed in the rotary shaft 1, and all recessed portions 33 are with the rotation The rotation of axis 1 changes magnetic area described in being formed, it is preferred that the recessed portion 33 is in vertical with 1 axis of the rotary shaft same In plane so that the magnetic area of changing is annulus, and all magneto-caloric material beds 11 are set in annulus, and Cheng Yuan Shape is distributed, convenient to be arranged to all magneto-caloric material beds 11.

The section of the magnetic field generator 3 is C-shaped, and the c-shaped opening of all magnetic field generators 3 be directed away from it is described The direction of rotary shaft 1.

The magnetic field generator 3 is made of an at least block permanent magnet；Or the magnetic field generator 3 is by an at least block permanent magnet It is formed at least one block of soft magnet.

The magnetic refrigerator further includes cool end heat exchanger 9, and the cold ends 21 of all heat exchanging pipes 2 is juxtaposed on described Central refrigerating in cool end heat exchanger 9；The magnetic refrigerator further includes hot end heat exchanger 10, the hot junction of all heat exchanging pipes 2 22 are juxtaposed on concentration heat dissipation in the hot end heat exchanger 10.

The magnetic refrigerator further includes 1 driving mechanism of rotary shaft, and 1 driving mechanism of the rotary shaft is directly or by driver Structure drives the rotary shaft 1 to rotate.

The magnetic refrigerator further includes fan, and the fan is set in the rotary shaft 1, and the outlet air court of the fan To the hot junction 22 of the heat exchanging pipe 2, increase the heat dissipation effect in hot junction 22.

Embodiment 1

The quantity of the magnetic field generator 3 and magneto-caloric material bed 11 is two, and the magnetic field generator 3 and the magnetic Hot material bed 11 is semicircular structure, and the magnetic field generator 3 includes rotor 31 and stator 32, and two magnetic fields occur The rotor 31 of device 3 forms circular configuration and is set in rotary shaft 1, is rotated with rotary shaft 1, and two stators 32 are set to the circle The outside of shape structure, and form ring-type with the circular configuration and change magnetic area, two magneto-caloric material beds 11 are in the ring Shape is changed in magnetic area.

The driving device is cam and piston mechanism 4, and the cam is fixed in rotary shaft 1, and with rotary shaft 1 It is freely rotated, while the outer surface of cam coordinates with two piston mechanisms 4, and two piston mechanisms 4 is driven to be in opposite in phase It is moved under state.

The period of the magnetic refrigerator of the application is divided into two periods：

In the preceding period：

The rotation of cam makes 41 drain of first piston mechanism, 42 liquid collecting of second piston mechanism, while corresponding is magnetic field The rotation of the rotor 31 of generator 3 makes 111 degaussing of the first magneto-caloric material bed, the second magneto-caloric material bed 112 plus magnetic.Fluid flows to Second magneto-caloric material bed 112 is flowed to by the first magneto-caloric material bed 111, while leaving the liquid of first piston mechanism 41, due to list The second hot end heat exchanger 10 cannot be flowed to the cut-off of valve effect, first magnetic of the check valve flow direction in demagnetizing state can only be flowed through Hot material bed 111 flows to cool end heat exchanger 9 and exchanges heat again after absorbing cold, subsequently enter in plus magnetic the hot material of the second magnetic Expect bed 112, after absorbing heat, since the cut-off of check valve acts on, the first hot end heat exchanger 10 can only be flowed to again and exchanged heat, then It flows through check valve and enters the second second piston mechanism 42.In the preceding period, the heat exchanging fluid completed in first piston mechanism 41 passes through System pipeline reaches second piston mechanism 42；

Period afterwards, the rotation of cam gear make 41 liquid collecting of first piston mechanism, 42 drain of second piston mechanism, while right What is answered is that the rotation of the rotor 31 of magnetic field generator 3 makes the first magneto-caloric material bed 111 plus magnetic, the second magneto-caloric material bed 112 go Magnetic.Fluid flow direction is that the second magneto-caloric material bed 112 flows to the first magneto-caloric material bed 111, while leaving second piston mechanism 42 Liquid, same principle can only flow through check valve flow direction since the cut-off effect of check valve cannot flow to the first hot end heat exchanger 10 The second magneto-caloric material bed 112 in demagnetizing state flows to cool end heat exchanger 9 and exchanges heat, subsequently enters place after obtaining cold In the first magneto-caloric material bed 111 for adding magnetic state, after absorbing heat, since the cut-off of check valve acts on, the second heat can only be flowed to End heat exchanger 10 exchanges heat, and then flows through check valve and returns to first piston mechanism 41, after the completion the period, and in next period Repeat preceding period and rear period.

Such as the arrow direction in Fig. 1 to Fig. 5：Solid arrow is the flow direction of the fluid in preceding period, after dotted arrow is The flow direction of the fluid in period.

Embodiment 2

As different from Example 1, it is C-shaped that the magnetic field generator, which is section, and the opening of C-shaped is directed away from rotary shaft Direction, the annular that is formed is changed in magnetic area after two magneto-caloric material beds 11 are in c-shaped opening rotation.

Embodiment 3

As different from Example 2, the quantity of the magnetic field generator 3 is multiple, and is formed in the side of rotary shaft more A annular changes magnetic area, and the quantity of the magneto-caloric material bed 11 is also multiple, and is distributed in different annulars as needed and changes magnetic In region.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims

1. a kind of magnetic refrigerator, it is characterised in that：Including rotary shaft (1), it is set to a plurality of heat exchange of the rotary shaft (1) side Pipeline (2) and at least two magnetic field generators (3), all magnetic field generators (3) are uniformly distributed in the rotary shaft (1) On, and at least one magnetic field generator (3) has plus magnetic space, at least one magnetic field generator (3) has degaussing Space, is arranged in series that there are two magneto-caloric material bed (11), all magneto-caloric material beds (11) on each heat exchanging pipe (2) May be contained within being formed after described plus magnetic space and the degaussing Space Rotating changes in magnetic area, and is acted on together in synchronization Magnetic different, each heat exchanger tube that changes magnetic area of two magneto-caloric material beds (11) on one heat exchanging pipe (2) The both ends on road (2) are respectively formed hot junction (22), and each heat exchanging pipe (2) is in two magneto-caloric material beds (11) Between position form cold end (21), and the fluid in each heat exchanging pipe (2) can be in two hot junctions (22) and described Cold end flows between (21).

2. magnetic refrigerator according to claim 1, it is characterised in that：Described in two on each heat exchanging pipe (2) Axisymmetrical of the magneto-caloric material bed (11) about the rotary shaft (1).

3. magnetic refrigerator according to claim 1, it is characterised in that：The magnetic refrigerator further includes driving device, described Driving device is connected to all heat exchanging pipes (2).

4. magnetic refrigerator according to claim 3, it is characterised in that：The driving device and each heat exchanging pipe (2) at least one hot junction (22) connection.

5. magnetic refrigerator according to claim 4, it is characterised in that：Two heat of each heat exchanging pipe (2) (22) described driving device connection is held, and can make fluid in the heat exchanging pipe (2) under the drive of the driving device Interior reciprocal flowing.

6. magnetic refrigerator according to claim 3, it is characterised in that：The driving device includes a plurality of piston mechanisms (4), and a hot junction (22) of each heat exchanging pipe (2) is connected to there are one the piston mechanism (4), and with same institute State the opposite in phase of matched two of heat exchanging pipe (2) piston mechanism (4).

7. magnetic refrigerator according to claim 6, it is characterised in that：It is provided with fluid inlet on the piston mechanism (4) And fluid outlet, the fluid inlet are connected to the one end of the hot junction (22) far from the magneto-caloric material bed (11), the stream Body outlet is connected to the hot junction (22) with the centre position of the magneto-caloric material bed (11).

8. magnetic refrigerator according to claim 7, it is characterised in that：The fluid inlet and the fluid outlet are all provided with It is equipped with check valve, and piston mechanism (4) inside is directed toward in the flow direction of the check valve of the fluid inlet, the fluid goes out It is directed toward the centre position of the hot junction (22) and the magneto-caloric material bed (11) in the flow direction of the check valve of mouth.

9. the magnetic refrigerator according to any one of claim 6 to 8, it is characterised in that：The magnetic refrigerator further includes turning Dynamic power plant and piston mechanism driving structure, the rotational power plant are the piston mechanism driving structure and/or described Rotary shaft (1) provides rotational power, and the piston mechanism driving structure is set in the rotary shaft (1), and can be described All piston mechanisms (4) are driven to move back and forth under the rotation of rotary shaft (1).

10. magnetic refrigerator according to claim 9, it is characterised in that：Described in two of each heat exchanging pipe (2) Piston mechanism (4) is matched with a piston mechanism driving structure, and all piston mechanism driving structures may be contained within On the rotary shaft (1), and the corresponding piston mechanism (4) is driven with the rotation of the rotary shaft (1).

11. magnetic refrigerator according to claim 10, it is characterised in that：The piston mechanism driving structure is cam mechanism (5), push rod is both provided on the piston mechanism (4), all push rods protrude one end of the corresponding piston mechanism (4) Surface with the cam mechanism (5) is engaged.

12. magnetic refrigerator according to claim 3, it is characterised in that：The driving device includes piston cylinder (6) and piston (7), the piston (7) is set in the piston cylinder (6) and the both ends of the piston cylinder (6) is divided into two variable volumes Pressure chamber (61), two hot junctions (22) of each heat exchanging pipe (2) respectively with two on the same piston cylinder (6) Pressure chamber (61) corresponds connection.

13. magnetic refrigerator according to claim 12, it is characterised in that：It is both provided with stream on each pressure chamber (61) Body entrance and fluid outlet, the fluid inlet are connected to the one end of the hot junction (22) far from the magneto-caloric material bed (11), The fluid outlet is connected to the hot junction (22) with the centre position of the magneto-caloric material bed (11).

14. magnetic refrigerator according to claim 13, it is characterised in that：The fluid inlet and the fluid outlet are equal It is provided with check valve, and piston mechanism (4) inside, the fluid are directed toward in the flow direction of the check valve of the fluid inlet It is directed toward the centre position of the hot junction (22) and the magneto-caloric material bed (11) in the flow direction of the check valve of outlet.

15. magnetic refrigerator according to claim 14, it is characterised in that：The driving device includes two-way pump, Mei Yisuo Two-way pump is stated to be respectively provided with there are two inlet and outlet, two hot junctions (22) of each heat exchanging pipe (2) with it is same described two-way Two inlet and outlet of pump correspond connection.

16. magnetic refrigerator according to claim 15, it is characterised in that：Each import and export is equipped with the first connection Pipeline and the second connecting pipeline, first connecting pipeline and the one end of the hot junction (22) far from the magneto-caloric material bed (11) Connection, second connecting pipeline are connected to the hot junction (22) with the centre position of the magneto-caloric material bed (11).

17. magnetic refrigerator according to claim 16, it is characterised in that：First connecting pipeline is connected to described second Check valve is both provided on pipeline, the flow direction of the check valve of first connecting pipeline is directed toward in the piston mechanism (4) It is directed toward in the hot junction (22) and the magneto-caloric material bed (11) flow direction in portion, the check valve of second connecting pipeline Between position.

18. magnetic refrigerator according to claim 1, it is characterised in that：Each magnetic field generator (3) includes one Rotor (31) and a stator (32), all rotors (31), which are uniformly distributed in the rotary shaft (1), forms rotor (31) It component and is rotated with the rotary shaft (1), all stators (32) are around being set to the outside shape of the rotor (31) component The described of annular is formed at stator (32) component, and between the stator (32) component and the rotor (31) component changes magnetic region Domain, all magneto-caloric material beds (11) are fixedly installed on the stator (32) component and are changed on the side of magnetic area described in.

19. magnetic refrigerator according to claim 18, it is characterised in that：Stator (32) component changes magnetic region far from described It is provided with yoke on the side in domain.

20. magnetic refrigerator according to claim 18, it is characterised in that：The rotor (31) and/or the stator (32) It is made of permanent magnet.

21. magnetic refrigerator according to claim 1, it is characterised in that：It is provided with recessed portion on the magnetic field generator (3) (33), and the recessed portion (33) forms described plus magnetic space or degaussing space, and all magnetic field generators (3) are uniformly distributed In in the rotary shaft (1), and all recessed portions (33) with the rotary shaft (1) rotation formed described in change magnetic area.

22. magnetic refrigerator according to claim 21, it is characterised in that：The section of the magnetic field generator (3) is C-shaped, And the c-shaped opening of all magnetic field generators (3) is directed away from the direction of the rotary shaft (1).

23. magnetic refrigerator according to claim 21, it is characterised in that：The magnetic field generator (3) by least one piece forever Magnet forms；Or the magnetic field generator (3) is made of an at least block permanent magnet and at least one block of soft magnet.

24. magnetic refrigerator according to claim 1, it is characterised in that：The magnetic refrigerator further includes cool end heat exchanger (9), the cold end (21) of all heat exchanging pipes (2) is juxtaposed on the cool end heat exchanger (9) interior central refrigerating；The magnetic Refrigeration machine further includes hot end heat exchanger (10), and the hot junction (22) of all heat exchanging pipes (2) is juxtaposed on the hot junction and changes Heat dissipation is concentrated in hot device (10).

25. magnetic refrigerator according to claim 1, it is characterised in that：The magnetic refrigerator further includes rotary shaft driving machine Structure, the rotary shaft driving mechanism drive the rotary shaft (1) to rotate directly or by transmission mechanism.

26. magnetic refrigerator according to claim 1, it is characterised in that：The magnetic refrigerator further includes fan, the fan It is set in the rotary shaft (1), and the outlet air of the fan is towards the hot junction (22) of the heat exchanging pipe (2).