CN217214333U - Magnetizing equipment, magnetizing system and motor rotor - Google Patents

Abstract

The application relates to the technical field of magnetization, and discloses a magnetization device, a system and a motor rotor. The magnetizing apparatus includes: magnetizing coil assembly and cooling device, cooling device includes hollow body, the body is the ring column, the relative both sides of body periphery are provided with a plurality of inlets and a plurality of liquid outlet respectively, magnetizing coil assembly cover is established the periphery of body. The magnetizing equipment provided by the embodiment of the application can keep away the shaft column of the motor rotor to be magnetized, thereby improving the heat dissipation efficiency, efficiently completing the magnetizing process and prolonging the service life of the system.

Description

Magnetizing equipment, magnetizing system and motor rotor

Technical Field

The application relates to the technical field of magnetization, in particular to a magnetizing device, a magnetizing system and a motor rotor.

Background

The magnetization is to magnetize a magnetic substance or increase the magnetism of a magnet with insufficient magnetism. Magnetization is typically accomplished by placing the object to be magnetized in a magnetic field created by a coil through which an electric current is passed. The magnetizing direction can be divided into axial magnetizing and radial magnetizing, etc.

The key of the magnetization is to magnetize the coil, but the coil is heated by the multiple magnetization, and the magnetization effect is influenced. At present, a water cooler is usually added for heat dissipation, but the water cooler is generally heavy and has a limited heat dissipation effect. Therefore, a new magnetizing scheme is needed.

The above background disclosure is only provided to aid in understanding the inventive concepts and solutions of the present application and it is not necessary for them to belong to the prior art of the present patent application, but it should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above contents are disclosed before the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The present application is directed to a magnetizing apparatus, a magnetizing system, and a motor rotor, so as to solve at least one of the related technical problems.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a magnetizing apparatus, including: magnetizing coil assembly and cooling device, cooling device includes hollow body, the body is the ring column, the relative both sides of body periphery are provided with a plurality of inlets and a plurality of liquid outlet respectively, magnetizing coil assembly cover is established the periphery of body.

In some embodiments, the body is divided into two cavities in axial direction, one of the cavities is connected to the plurality of liquid inlets, and the other cavity is connected to the plurality of liquid outlets.

In some embodiments, the number of the liquid inlets is two, the number of the liquid outlets is two, the body is axially divided into four cavities, the two liquid inlets are communicated with two cavities one by one, the two liquid outlets are communicated with the other two cavities one by one, and the cavities communicated with the liquid inlets and the cavities communicated with the liquid outlets are communicated with each other.

In some embodiments, the cooling device further comprises a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet is connected with the liquid inlet pipeline, and the liquid outlet is connected with the liquid outlet pipeline.

In some embodiments, the cooling device is a hydronic cooling device.

In some embodiments, the magnetizing coil assembly includes a magnetizing core and a plurality of coils wound on the magnetizing core.

In some embodiments, the magnetizing coil assembly is fixed to the outer circumference of the body by glue.

In some embodiments, the magnetizing coil assembly is fixed to the outer periphery of the body by a heat-conducting glue.

In a second aspect, an embodiment of the present application provides a magnetizing system, including: the motor rotor comprises a support, a shaft column and a magnetic ring, the shaft column is arranged in the center of the support, the magnetic ring is arranged on the inner peripheral wall of the support, the magnetic ring and the shaft column are coaxially arranged, when the motor rotor is assembled to the magnetizing equipment, the shaft column is inserted into a central shaft hole of the cylindrical body of the circular ring, and the magnetic ring is sleeved outside the magnetizing coil assembly.

In some embodiments, the electric machine rotor further comprises: and the magnetism keeping ring is coated on the inner circumferential wall of the magnetic ring and is arranged on the bracket.

In a third aspect, an embodiment of the present application provides an electric machine rotor, including: the magnetic ring is coaxially arranged with the shaft column, and comprises a plurality of radial magnetic poles which are generated by magnetizing the magnetizing equipment in any embodiment of the first aspect.

In some embodiments, the electric machine rotor further comprises: and the magnetism keeping ring is coated on the inner circumferential wall of the magnetic ring and is arranged on the bracket.

The beneficial effect of this application technical scheme is:

through forming axial through hole at cooling device's body central authorities, and this internal coolant liquid circulation passageway that forms, can keep away the motor rotor shaft post of treating the magnetization, thereby can promote the high-efficient completion magnetization process of radiating efficiency, extension system life.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings without any inventive exercise.

Fig. 1 is a schematic cross-sectional structure diagram of a magnetizing apparatus according to an embodiment of the present application;

FIG. 2 is a side view of a magnetizing apparatus according to an embodiment of the present disclosure after assembly;

FIG. 3 is a top view of a magnetizing apparatus according to an embodiment of the present disclosure after assembly;

FIG. 4 is a schematic cross-sectional view of a cooling device according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of a magnetizing coil assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of a magnetizing system according to an embodiment of the present application;

FIG. 7 is a side view of a partially assembled charging system according to an embodiment of the present application;

FIG. 8 is a top view of a magnetizing system as assembled according to one embodiment of the present disclosure;

fig. 9 is a schematic cross-sectional structure view of a rotor of an electric machine according to an embodiment of the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present application more clearly and clearly understood, and to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixing or for circuit connection.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description of the embodiments and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, "plurality" means two or more, and the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In order to better explain the technical solutions of the present application, the technical solutions of the present application are described and illustrated in detail with reference to some specific embodiments.

An embodiment of the present application provides a magnetizing apparatus. Fig. 1 is a schematic cross-sectional structural diagram of a magnetizing apparatus according to an embodiment of the present disclosure. FIG. 2 is a side view of the charging apparatus shown in FIG. 1 after assembly. Fig. 3 is a top view of the magnetizing apparatus shown in fig. 1 after being assembled.

As shown in fig. 1 to 3, the magnetizing apparatus 10 includes a cooling device 11 and a magnetizing coil assembly 12. The magnetizing coil assembly 12 is sleeved outside the cooling device 11.

In one embodiment, the magnetizing coil assembly 12 is fixed to the outer circumference of the cooling device 11 by glue. Optionally, the magnetizing coil assembly 12 is fixed on the periphery of the cooling device 11 by a heat conducting glue, preferably an epoxy resin filled glue.

In some embodiments, the cooling device 11 includes a hollow body, the body is in a shape of a circular column, and a plurality of liquid inlets and a plurality of liquid outlets are respectively disposed on two opposite sides of the periphery of the body. Through this kind of setting, body central authorities form the axial through hole, and the body forms central shaft hole promptly, and this internal a plurality of coolant liquid circulation passageways that form, can keep away the motor rotor shaft post of treating the magnetization, thereby can promote the radiating efficiency efficient and accomplish the process of magnetizing, extension system life.

Fig. 4 is a schematic cross-sectional view illustrating a cooling device according to an embodiment of the present disclosure. As shown in fig. 4, the cooling device 11 includes a hollow body 111, and the body 111 is in the shape of a circular column. The body 111 is axially divided into two cavities which are communicated with each other, one cavity is communicated with the plurality of liquid inlets 117, and the other cavity is communicated with the plurality of liquid outlets 112.

Specifically, with continued reference to fig. 4, the inside of the body 111 is provided with a partition wall 115 in the axial direction, it being understood that there are two front and back partition walls 115, only the front one is shown in fig. 4, and the back one is shielded, and the two partition walls 115 divide the circular cylindrical body 111 into two cavities. A through hole 116 is opened on the partition wall 115 so that the two cavities communicate with each other. Alternatively, in order to provide heat dissipation efficiency, the through-hole of the partition wall 115 is opened at a top position of the partition wall 115.

In some embodiments, with continued reference to fig. 4, the number of the liquid inlets 117 is two, the number of the liquid outlets 113 is two, the body 111 is axially divided into four cavities, the two liquid inlets 117 are communicated with two cavities one by one, the two liquid outlets 113 are communicated with the other two cavities one by one, and the cavity communicated with the liquid inlets 117 and the cavity communicated with the liquid outlets are communicated with each other.

Specifically, with continued reference to fig. 4, the inside of the body 111 is provided with partition walls 115 in the axial direction, and it is understood that there are four partition walls 115 in front, back, left, and right, only the front one of which is shown in fig. 4, and three of the back, left, and right are shielded, and the four partition walls 115 partition the circular cylindrical body 111 into four cavities. The partition wall 115 on the front and rear sides is provided with through holes 116 so that two chambers respectively connected to the liquid inlet and the liquid outlet are communicated with each other. Alternatively, in order to provide heat dissipation efficiency, the through-hole 116 on the partition wall 115 is opened at the top of the partition wall 115. In this embodiment, further cut off into two and respectively include a inlet with the cavity of connecting two inlets, cut off into two and respectively include a liquid outlet with the cavity of connecting two liquid outlets, form two mutually independent coolant liquid circulation passageways in the body is inside, on the one hand, the partition wall has promoted device intensity as the strengthening rib, increase of service life, on the other hand, has improved the radiating efficiency.

In some embodiments, the cooling device 11 further comprises a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet is connected to the liquid inlet pipeline, and the liquid outlet is respectively connected to the liquid outlet pipeline.

In some embodiments, with continued reference to fig. 4, there are two inlet ports 117 and two outlet ports 113, and the two branch pipes 114 of the inlet pipes are connected to the two inlet ports 117, respectively, and the two branch pipes 113 of the outlet pipes are connected to the two outlet ports 113, respectively.

In some embodiments, the cooling device 11 may be a circulating cooling device.

In particular, in one embodiment, the cooling device 11 may also include a pump and a reservoir. The liquid storage tank is used for storing cooling liquid. The liquid outlet of the liquid storage tank is communicated with the liquid inlet of the pump, the liquid outlet of the pump is connected with a liquid inlet pipeline, and the liquid outlet pipeline is connected with the liquid inlet of the liquid storage tank.

In some embodiments, the cooling fluid may include water.

Fig. 5 is a schematic cross-sectional view of a magnetizing coil assembly according to an embodiment of the present disclosure. Note that the magnetizing coil assembly shown in fig. 5 does not show a power supply line.

As shown in fig. 5, the magnetizing coil assembly 12 includes a magnetizing core 121 and a plurality of coils 122 wound on the magnetizing core 121. The magnetizing core 121 serves as a bobbin around which the coil 122 is wound. After the coil 122 is powered, the magnetizing core 121 can realize radial multi-pole magnetization. In some embodiments, the coil 122 is formed by winding a copper wire or the like around the magnetizing core 121.

In one embodiment, as shown in fig. 3 and 5, the magnetizing core 121 is substantially annular, and the number of the coils 122 is 14, which are uniformly distributed on the circumference of the magnetizing core 121. After 14 coils 122 are powered, the magnetizing core 121 can realize radial 14-pole magnetization, and the arrangement of the radial magnetization can be seen in a top view of the magnetizing apparatus shown in fig. 3.

In one embodiment, a pulsed current may be provided to the coil to accomplish the charging. Alternatively, the pulsed current may be around 10000 amps.

An embodiment of the present application provides a magnetizing system. The magnetizing system comprises a motor rotor and the magnetizing device in any one of the embodiments.

Fig. 6 is a schematic cross-sectional view illustrating a magnetizing system according to an embodiment of the present disclosure. Fig. 7 is a side view of a partially assembled charging system according to an embodiment of the present application. Fig. 8 is a top view of an assembled magnetizing system according to an embodiment of the present disclosure. Fig. 9 is a schematic cross-sectional view illustrating a rotor of an electric machine according to an embodiment of the present application. It should be noted that the magnetizing apparatus included in the magnetizing system may adopt the magnetizing apparatus described in any of the foregoing embodiments, and please refer to the foregoing description where not described in detail.

As shown in fig. 6 to 9, the magnetizing system 20 includes the motor rotor 13 and the magnetizing apparatus 10. The motor rotor 13 includes a bracket 131, a shaft post 132, and a magnetic ring 134. The shaft post 132 is disposed at the center of the bracket 131, the magnetic ring 134 is disposed on the inner peripheral wall of the bracket 131, and the magnetic ring 134 and the shaft post 132 are disposed coaxially. When the motor rotor 13 is assembled to the magnetizing apparatus 10, the shaft post 132 is inserted into the central shaft hole of the cooling device 11, and the magnetic ring 134 is sleeved outside the magnetizing coil assembly 12. After the coils of the magnetizing apparatus 10 are powered, the magnetic ring 134 of the motor rotor can realize radial multi-pole magnetization.

Specifically, as shown in fig. 4, 6 and 9 in conjunction, when the motor rotor 13 is assembled to the magnetizing apparatus 10, the shaft post 132 of the motor rotor 13 is inserted into the central shaft hole of the body 111 of the cooling device 11.

In some embodiments, with continued reference to fig. 9, the motor rotor 13 further includes a magnetic shielding ring 133, and the magnetic shielding ring 133 is wrapped around the inner circumferential wall of the magnetic ring 134 and disposed on the bracket 131.

In some embodiments, the bracket 131 is made of plastic. The bracket 131, the shaft post 132, the magnetic ring 134 and the magnetic retaining ring 133 can be integrally formed by plastic injection molding.

The system of magnetizing that this application embodiment provided is at the during operation, carries on cooling device 11 on coil pack 12 magnetizes, through constantly annotating body 111 to the coolant liquid to take away the heat that coil pack 12 produced of magnetizing through the liquid outlet, the process of magnetizing is accomplished to the efficient, and promotes the life of system of magnetizing.

It should be noted that the magnetizing apparatus provided in the embodiment of the present application is not limited to magnetizing a motor rotor with a rotating shaft, and more generally, may be used to magnetize any magnetic ring. It is understood by those skilled in the art that the magnetizing system provided in the embodiments of the present application is only an exemplary description and should not be construed as limiting the present application.

It is to be understood that the foregoing is a more detailed description of the invention as embodied in the specific/preferred embodiments and that no limitation to the specific embodiments contemplated herein is intended. It will be apparent to those skilled in the art to which the present application pertains that many alternatives or modifications to the described embodiments can be made without departing from the inventive concept, and such alternatives or modifications are to be considered as within the scope of the present patent. In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "a preferred embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments and their advantages as invented by the present application have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope as defined by the appended claims.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims (11)

1. A magnetizing apparatus, comprising: magnetizing coil assembly and cooling device, cooling device includes hollow body, the body is the ring column, the relative both sides of body periphery are provided with a plurality of inlets and a plurality of liquid outlet respectively, magnetizing coil assembly cover is established the periphery of body.

2. The magnetizing apparatus of claim 1, wherein the body is axially divided into two cavities communicating with each other, one cavity communicating with the plurality of liquid inlets, and the other cavity communicating with the plurality of liquid outlets.

3. The magnetizing apparatus of claim 1, wherein the number of the liquid inlets is two, the number of the liquid outlets is two, the body is axially divided into four cavities, two liquid inlets are communicated with two cavities one by one, two liquid outlets are communicated with the other two cavities one by one, and the cavities communicated with the liquid inlets and the cavities communicated with the liquid outlets are communicated with each other.

4. A magnetizing apparatus according to any one of claims 1 to 3, wherein the cooling device further comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet is connected to the liquid inlet pipe, and the liquid outlet is connected to the liquid outlet pipe.

5. A magnetizing apparatus according to any one of claims 1 to 3, wherein the cooling device is a circulation cooling device.

6. The magnetizing apparatus of any one of claims 1 to 3, wherein the magnetizing coil assembly comprises a magnetizing core and a plurality of coils wound on the magnetizing core.

7. The magnetizing apparatus of any one of claims 1 to 3, wherein the magnetizing coil assembly is fixed to the outer periphery of the body by glue, and the glue is heat-conducting glue.

8. A magnetizing system, comprising: the motor rotor and the magnetizing equipment as claimed in any one of claims 1 to 7, wherein the motor rotor comprises a support, a shaft column and a magnetic ring, the shaft column is arranged in the center of the support, the magnetic ring is arranged on the inner peripheral wall of the support, the magnetic ring is arranged coaxially with the shaft column, when the motor rotor is assembled to the magnetizing equipment, the shaft column is inserted into a central shaft hole of the cylindrical body, and the magnetic ring is sleeved outside the magnetizing coil assembly.

9. The magnetizing system of claim 8, wherein the motor rotor further comprises: and the magnetism keeping ring is coated on the inner circumferential wall of the magnetic ring and is arranged on the bracket.

10. An electric machine rotor, comprising: the magnetizing device comprises a support, a shaft column and a magnetic ring, wherein the shaft column is arranged in the center of the support, the magnetic ring is arranged on the inner peripheral wall of the support, the magnetic ring is arranged coaxially with the shaft column, and the magnetic ring comprises a plurality of radial magnetic poles which are generated by magnetizing the magnetizing device in any one of claims 1 to 7.

11. The electric machine rotor as recited in claim 10, further comprising: and the magnetism keeping ring is coated on the inner circumferential wall of the magnetic ring and is arranged on the bracket.

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