CN102957268A

CN102957268A - Heat dissipation structure for rotary motor

Info

Publication number: CN102957268A
Application number: CN2011102357931A
Authority: CN
Inventors: 赖振民; 王之佑; 李奇录
Original assignee: Hiwin Mikrosystem Corp
Current assignee: Hiwin Mikrosystem Corp; Hiwin Technologies Corp
Priority date: 2011-08-17
Filing date: 2011-08-17
Publication date: 2013-03-06

Abstract

The invention relates to a heat dissipation structure for a rotary motor. The heat dissipation structure comprises a base, a plurality of iron cores, a plurality of coils, a plurality of insulating portions and dielectric portions. The base is provided with a curvature center axis; the iron cores taking the curvature center axis as an axis are protrudingly arranged at equal intervals on an annular face of one side of the base; the coils are wound on corresponding iron cores; and the insulating portions are arranged between the iron cores and the coils wound on the iron cores; the dielectric portions are made of heat conducting materials with surface insulativity. Accordingly, heat energy can be transferred outside the base through the iron cores by the coils from the insulating portions adjacent to the coils and simultaneously transferred on the base through the dielectric portions in direct contact with the coils. By means of the heat dissipation structure, thermal resistance can be reduced, heat transfer effects are improved, and excellent heat dissipation efficacy can be achieved. Further, operation of the motor in overhigh-temperature environments can be avoided, and torque density is improved.

Description

The radiator structure of rotation motor

Technical field

The present invention is relevant with motor, particularly a kind of radiator structure of rotation motor.

Background technology

Press, motor is the technology that converts electrical energy into kinetic energy, the performance of kinetic energy then can be presented by strength and rotating speed, and perfectly motor is the kinetic energy that the electric energy that will input is converted to outside output fully, but in fact, these power conversion can't reach absolutely, therefore, under the first law of thermodynamics, the part that is not converted with the kinetic energy kenel namely can be planted kenel output with him, wherein, have part more can be consumed with the heat energy kenel, this is the heating problem that certainly exists in the motor technologies.

Yet, really exist inverse relationship between the running efficiency of motor and temperature, when motor turns round under the higher environment of temperature, then suffered magneto resistance effect is namely larger, causes running usefulness thereby the reduction of motor, therefore, temperature when how to reduce motor running is an important topic keeping motor running efficient, and by the means that improve the temperature rise of cooling effectiveness reduction motor, more can improve efficiency of energy utilization, have much energy-conservation effect.

See also Fig. 1 and shown in Figure 2, know the technology for rotation motor enforcement heat radiation that technology provides, on the whole be that the water-cooled road is arranged on the motor case 1 on, expectation provides the quick heat radiating path of coil 2 heat energy of being given birth to it, particularly, these thermal energy transfer paths of knowing technology are as thermal source take coil 2, be passed to 4 positions unshakable in one's determination via the insulation external member 3 with coil 2 adjacency, be passed on the motor case 1 via unshakable in one's determination 4 again, and by the water body of institute's continuous flow in the water-cooled road heat energy is taken away rapidly, but, the technology that these are known, because the bang path of heat energy from thermal source to radiating end is long, with temperature gradient, heat energy will concentrate on coil 2 and the insulation external member 3, so that be not a large amount of with the heat energy energy of the heat radiation via motor case 1, thus, also to know the radiating effect that the technology gained reaches also not remarkable.

Summary of the invention

Therefore, main purpose of the present invention is the radiator structure that a kind of rotation motor is provided, and it can reduce thermal resistance, and improves the effect that heat passes, to reach better heat radiation function.

In order to reach above-mentioned purpose, the present invention takes following technical scheme:

A kind of radiator structure of rotation motor includes:

One base portion has a center of curvature axle;

Most unshakable in one's determination, take this center of curvature axle as axle, equi-spaced apart is based on the side ring surface of this base portion with coming each other;

Plurality of coils, winding is on the iron core of a correspondence respectively;

Most insulation divisions are divided between the iron core of respectively this coil and institute's winding;

It is characterized in that also including:

One medium section, made by the heat conduction material of tool surface insulation, and fill out in the space that is distributed between adjacent windings, and be adjacent on the adjacently situated surfaces of respectively this coil, insulation division and this base portion;

Accordingly, heat energy is passed to this base portion via iron core from the insulation division of adjacency by this coil respectively except being able to, and simultaneously via this medium section that directly contacts with this coil respectively, with thermal energy transfer to this base portion.

The radiator structure of above-mentioned rotation motor also can include a water-cooled runner, is located in this medium section.

In the radiator structure of above-mentioned rotation motor, this base portion respectively should then be based on the interior side ring surface of this base portion to the equi-spaced apart arrangement by iron core in the form of a ring each other.The radiator structure of above-mentioned rotation motor also can further include a ring-shaped shell, and coaxial sleeve is located on the outside anchor ring of this base portion, and a water-cooled runner is located in this shell.

Major advantage of the present invention can reduce thermal resistance for the radiator structure of the rotation motor that provides, and improves the effect that heat passes, to reach better heat radiation function.

Another advantage of the present invention is the radiator structure of the rotation motor that provides, and it can avoid motor to work in too high temperature environment, to improve torque density.

Description of drawings

Fig. 1 is the stereogram of knowing technology.

Fig. 2 is the heat dissipation path schematic diagram of knowing technology.

Fig. 3 is the three-dimensional partial exploded view that does not have medium section in a preferred embodiment of the present invention.

Fig. 4 is the stereogram of a preferred embodiment of the present invention.

Fig. 5 is the heat dissipation path schematic diagram of a preferred embodiment of the present invention.

Embodiment

Below, hereby namely lift with a preferred embodiment of the present invention, and cooperate accompanying drawing to be further described.

See also Fig. 3 to shown in Figure 5, the radiator structure 10 of the rotation motor that provides in a preferred embodiment of the present invention, it includes a base portion 20, most iron core 30, plurality of coils 40, most insulation division 50, a shell 60 and a medium section 70, and wherein, this base portion 20 with respectively should be formed in one by iron core 30.

Particularly, this base portion 20 is circular, and has a center of curvature axle.

Respectively should have respectively suitable section configuration by 30 of iron cores, and take this center of curvature axle as axle, be based in separately to equi-spaced apart on the interior side ring surface of this base portion 20 each other.

Respectively 40 difference of this coil winding is on the iron core 30 of a correspondence.

Respectively this insulation division 50 is comprised of several bodies respectively, and is folded in separately 30 of the iron cores of the coil 40 of a correspondence and institute's winding.

This shell 60 also in the form of a ring, and coaxial sleeve is located on the outside anchor ring of this base portion 20.

And Yu Jinyi to the explanation before, must give first and being pointed out that, the structure of the assemblies self such as respectively this base portion 20 recited above, unshakable in one's determination 30, coil 40, insulation division 50 and shell 60 and the space kenel of being combined to each other thereof, all with to know technology institute published consistent, in other words, above-mentioned genus is known the technical characterictic place that the technology contents of technology category is not this case.

That is, the technical characteristics of this case namely is this medium section 70, particularly, this medium section 70 is take the heat conduction material of tool surface insulation as its composition material, it is take metal material as main, again take aluminium as good, and replaces the air that is positioned at 40 of this coils respectively with this medium section 70, be abound with in adjacent windings 40 space to each other and fill, this medium section 70 is adjacent on the adjacently situated surfaces of this coil 40 respectively, insulation division 50 and this base portion 20.

Accordingly, the heat energy as respectively this coil 40 of thermal source produces when the work, can outwards transmit via two heat-transfer paths:

One, heat energy from this coil 40 respectively via the corresponding insulation division 50 of adjacency, be passed to unshakable in one's determination 30 with base portion 20 after, outwards dissipate to atmosphere by this shell 60 again, in this, it also can be the purpose that improves radiating effect, establishes to the water-cooled runner in these shell 60 inside.

Two, heat energy is from respectively this coil 40 and insulation division 50, is passed to this base portion 20 via this medium section 70 of institute's adjacency, outwards dissipates to atmosphere by this shell 60 again, and in this, it also can be the purpose that improves radiating effect, in these medium section 70 interior water-cooled runners that arrange.

Composition by above-mentioned member, the radiator structure 10 of this rotation motor except can provide with know identical heat dissipation path, it is also further derived with these medium section 70 direct respectively heat energy of this coil 40, so that comprehensive heat dissipation path to be provided, reduce thermal resistance, thereby improve the heat radiation function of the radiator structure 10 of this rotation motor, the torque density when increasing motor running reaches energy-conservation effect.

And need be illustrated especially be; as this medium section 70 of technical characteristics of the present invention except can form and be coated on all sides of this coil 40 respectively; it also is able to most water-cooled plate bodys of tool internal water cooling runner are inserted in respectively 40 of adjacent windings; and make plate shape be fit to amplexiform with the adjacent windings surface; accordingly; it also is able to need not to fill up under the structure in 40 spaces of coil; by the internal water cooling runner of this water-cooled plate body respectively; the heat energy that adjacent coil 40 is given birth to outwards transmits rapidly; reached equally fast; effectively radiating effect is answered shielded category and still belong to this case.

Claims

1. the radiator structure of a rotation motor includes:

Base portion has center of curvature axle;

Most unshakable in one's determination, take described center of curvature axle as axle, equi-spaced apart is based on the side ring surface of described base portion with coming each other;

Plurality of coils, winding is on the iron core of correspondence respectively;

Most insulation divisions are divided between the iron core of each described coil and institute's winding;

It is characterized in that also including:

Medium section, made by the Heat Conduction Material of tool surface insulation, and fill out in the space that is distributed between adjacent windings, and be adjacent on the adjacently situated surfaces of each described coil, insulation division and described base portion;

Accordingly, heat energy is passed to the described base portion via iron core by the insulation division of each described coil from adjacency except being able to, and simultaneously via the described medium section that directly contacts with each described coil, with thermal energy transfer extremely on the described base portion.

2. according to the radiator structure of rotation motor claimed in claim 1, it is characterized in that: it also includes the water-cooled runner, is located in the described medium section.

3. according to the radiator structure of rotation motor claimed in claim 1, it is characterized in that: described base portion in the form of a ring, each described iron core then each other equi-spaced apart be based on the interior side ring surface of described base portion with arranging.

4. according to the radiator structure of rotation motor claimed in claim 3, it is characterized in that: it also includes ring-shaped shell, and coaxial sleeve is located on the outside anchor ring of described base portion, and the water-cooled runner, is located in the described shell.