CN218217018U - Linear motor based on T-shaped flattening heat pipe - Google Patents
Linear motor based on T-shaped flattening heat pipe Download PDFInfo
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- CN218217018U CN218217018U CN202222066134.6U CN202222066134U CN218217018U CN 218217018 U CN218217018 U CN 218217018U CN 202222066134 U CN202222066134 U CN 202222066134U CN 218217018 U CN218217018 U CN 218217018U
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Abstract
The utility model relates to a linear electric motor based on T shape flattens heat pipe, including the base, be fixed with two active cell windings and platykurtic heat pipe on the base side by side, the heat pipe includes two kinks that become by the bending type respectively at heat pipe both ends to and the fifty percent discount portion that forms by the fifty percent discount between two kinks, fifty percent discount portion opening is inlayed towards the base and is located between two active cell windings and closely laminate with two active cell windings; the two bending parts are respectively bent along the bottoms of the two rotor windings and embedded between the rotor windings and the base, the base is provided with a liquid cooling channel, and the liquid cooling channel is arranged on one side of the bending part. Utilize heat pipe to fold portion and two active cell windings closely laminate, can lead the kink of below fast with the heat that two active cell windings during operation produced to further transmit the base through the kink, let in the liquid cooling medium by the liquid cooling channel of base at last and dispel the heat fast. The heat dissipation path has extremely low thermal resistance, and the motor is not easy to generate heat accumulation even if the motor runs for a long time.
Description
Technical Field
The utility model belongs to the technical field of the motor heat dissipation, concretely relates to linear electric motor based on T shape flattens heat pipe.
Background
A winding of a linear motor is a core component of the linear motor, and whether effective heat dissipation of a rotor winding can be realized is a direct factor for determining the precision and the size of the motor. Linear motors are generally used in numerical control machining equipment, the precision of the motor directly affects the precision of the numerical control machine, and the volume of the motor is a main consideration factor of the design of a support structure of the numerical control machine.
The double-rotor linear motor in the prior art comprises two rotor windings arranged side by side, and a gap is reserved between the two rotor windings. Generally, heat of the linear motor is mainly derived from ohmic heat generated from the mover windings. According to current linear electric motor active cell structure, produced heat need be passed to the bottom from the winding top to pass to the base through the insulating layer, and finally the base passes to the workstation with the heat and in order to realize the heat dissipation, nevertheless because above-mentioned radiating mode thermal resistance is great, the radiating efficiency is extremely low, and the heat is piled up when the motor long-term operation appears, and the heat passes to the workstation and can lead to the workstation to appear hot deformation. This does not have much influence on a low-precision machine tool, but has a great influence on a high-precision machine tool having a machining precision of less than 0.005. The high-precision machine tool body usually follows the thermal deformation rule of one meter and one degree and one thread, and the temperature change brings great challenge to the machine tool precision. Therefore, in order to prevent the heat accumulation and even final burnout of the motor during long-term operation, the linear motor in the prior art can only operate at lower power, and the working efficiency of the motor is severely limited. In addition, the gaps between the rotor windings are always kept at high temperature, and the working performance of the rotor windings is seriously influenced.
Therefore, there is a need to develop a linear motor with efficient heat dissipation.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model discloses an aim at: the linear motor based on the T-shaped flattening heat pipe is extremely small in heat dissipation path thermal resistance, high in heat dissipation efficiency, not easy to generate heat accumulation, less in heat transferred to a workbench, and not easy to generate thermal deformation to affect the positioning accuracy of a system.
The utility model discloses the purpose realizes through following technical scheme:
a linear motor based on a T-shaped flattening heat pipe comprises a base, wherein two rotor windings and a flat heat pipe are fixed on the base side by side, the heat pipe comprises two bending parts formed by respectively bending two ends of the heat pipe and a folded part formed by folding the two bending parts, and an opening of the folded part is embedded between the two rotor windings towards the base and is tightly attached to the two rotor windings; the two bending parts are respectively bent along the bottoms of the two rotor windings and embedded between the rotor windings and the base, the base is provided with a liquid cooling channel, and the liquid cooling channel is arranged on one side of the bending part.
Furthermore, the included angle between the folded part and the bent part of the heat pipe is 90 degrees.
Further, the longitudinal section of the heat pipe is T-shaped.
Further, the height of the folded part of the heat pipe is the same as that of the rotor winding.
Furthermore, the number of the heat pipes between the two rotor windings is multiple, and the heat pipes are sequentially arranged and are tightly attached to the two rotor windings.
Furthermore, the rotor winding comprises a winding main body and winding heads connected to the end portion of the winding main body, the winding main body is tightly attached to the folded portion of the heat pipe, the base is provided with grooves, the winding heads of the two rotor windings are embedded into the grooves of the base side by side, and the liquid cooling channel is located below the grooves.
Furthermore, the groove and the winding head of the rotor winding are in surface contact.
Furthermore, heat-conducting interface materials are filled between the heat pipe and the rotor winding and between the heat pipe and the base.
Further, the heat-conducting interface material comprises heat-conducting silicone grease, heat-conducting mud or heat-conducting glue.
Further, the liquid cooling channel quantity has a plurality ofly, and the portion below of buckling is located respectively to a plurality of liquid cooling channels.
Compared with the prior art, the utility model discloses following beneficial effect has:
narrow and small gaps between the two rotor windings are fully utilized, and the flat heat pipes are inserted into the narrow and small gaps, so that the original structure of the linear motor is not required to be improved too much. The flat heat pipe increases the contact area between the heat pipe and the two rotor windings, and improves the heat conduction efficiency. Utilize heat pipe to fold portion and two active cell windings closely laminate, can lead the kink of below fast with the heat that two active cell windings during operation produced to further transmit the base through the kink, let in the liquid cooling medium by the liquid cooling channel of base at last and dispel the heat fast. The heat dissipation path has extremely low thermal resistance, and the motor is not easy to generate heat accumulation even if running for a long time due to high heat dissipation efficiency, so that other mechanical properties such as strength, hardness and the like of metal parts can be maintained, the service lives of insulation and the motor are prolonged, the safety is improved, less heat is transferred to the workbench, and the positioning precision of the system is not easily influenced by thermal deformation of the workbench.
Drawings
Fig. 1 is a schematic perspective view of a flat T-shaped heat pipe according to the present invention.
Fig. 2 is a schematic view of a three-dimensional structure of the flat T-shaped heat pipe and the rotor winding of the present invention.
In the figure:
1-heat pipe, 11-folded part and 12-bent part;
2-rotor winding, 21-winding main body, 22-winding head;
3-base, 31-liquid cooling channel.
Detailed Description
The present invention is described in further detail below.
As shown in fig. 1 and 2, a linear motor based on a T-shaped flattened heat pipe includes a base 3, a flat heat pipe 1, and two mover windings 2 arranged side by side.
The base 3 is provided with a groove, and a liquid cooling channel 31 is arranged below the groove.
The mover winding 2 includes a winding body 21 and a winding head 22 connected to an end of the winding body 21.
The winding heads 22 of the two rotor windings 2 are embedded in the grooves of the base 3 side by side, the upper end surfaces and the inner side surfaces of the grooves are both planes, the grooves are in surface contact with the winding heads 22 of the rotor windings 2, and gaps are reserved between the winding bodies 21 of the two rotor windings 2.
The flat heat pipe 1 is arranged between the two mover windings 2. The heat pipe 1 includes a folded portion 11 and bent portions 12 connected to both ends of the folded portion 11, respectively.
After the heat pipe 1 is folded in half, the opening faces the direction of the base 3, the folded part 11 is embedded between the two rotor windings 2, the flat side surfaces of the two sides are tightly attached to the winding main bodies 21 of the two rotor windings 2 respectively, the contact area between the folded part 11 and the two rotor windings 2 is increased, and the heat conduction efficiency is improved.
Preferably, the height of the fold back portion 11 is the same as the mover winding 2 to obtain a larger heat conducting area.
The two bent portions 12 are located below the folded portions 11, and are respectively bent along the winding heads 22 of the two mover windings 2 and embedded between the winding heads 22 and the base 3.
In this embodiment, the heat pipe 1 has a T-shaped longitudinal section. The fold portion 11 is a vertical line of a T shape, and the two fold portions 12 are horizontal lines of a T shape.
The contact of the bending part 12 and the winding head 22 and the base 3 is surface contact, so that the heat transfer area is increased.
The bending part 12 can rapidly transfer heat transferred from the doubling part 11 and the winding head 22 to the base 3, and a liquid cooling medium is introduced from the liquid cooling channel 31 of the base 3 to achieve rapid heat dissipation.
The liquid cooling channels 31 are provided with a plurality of liquid cooling channels 31 which are respectively arranged below the bending part 12, so that the heat dissipation effect of the bending part 12 is more effective.
In order to improve the heat conduction efficiency, heat conduction interface materials are filled between the flat side of the folded part 11 and the winding main body 21 and between the folded part 12 and the base 3 and the winding head 22 respectively.
Preferably, the heat-conducting interface material comprises heat-conducting silicone grease, heat-conducting mud or heat-conducting glue.
Because the width of a single heat pipe 1 is limited, and it is difficult to cover the side surface of the winding main body 21, in this embodiment, in order to increase the heat conduction area, the number of heat pipes 1 between the two mover windings 2 is multiple, and the multiple heat pipes 1 are sequentially arranged and are all tightly attached to the winding main bodies 21 of the two mover windings 2.
The manufacturing process of this embodiment is as follows:
1. the cylindrical heat pipe 1 is flattened by a mould, and the flattened heat pipe 1 is folded in half by a bending mould and then bent to form a T shape. The T-shaped heat pipe 1 can be designed and manufactured in a customized mode according to linear motor rotors with different sizes.
2. The T-shaped heat pipe 1 is arranged between the two rotor windings 2, and a heat conducting interface material is added on the contact surfaces of the two rotor windings 2 and the T-shaped heat pipe 1. The two mover windings 2 and the T-shaped heat pipe 1 are fastened together using a high temperature resistant adhesive tape.
3. The rotor base 3 is processed by adopting an aluminum profile extrusion mode, and a liquid cooling channel 31 for liquid cooling is arranged on the rotor base 3.
4. An assembly body formed by the T-shaped heat pipe 1 and the two rotor windings 2 is placed on the base 3, and heat-conducting interface materials are added on the matching surface.
5. An assembly body composed of a rotor base 3, two rotor windings 2 and a T-shaped heat pipe 1 is fixed by a clamp, and curable heat-conducting glue is filled in the surface of the assembly body for shaping.
During operation, ohmic heat generated by the two rotor windings 2 can be quickly transferred to the T-shaped heat pipe 1 through the heat-conducting interface material, and the heat is transferred to the base 3 with the liquid cooling channel 31 by means of the ultrahigh heat conductivity of the T-shaped heat pipe 1, so that the high-efficiency self-dissipation of the heat of the rotor windings 2 is realized.
The utility model discloses the narrow and small gap between two active cell windings 2 of make full use of inserts the platykurtic heat pipe 1 of super high heat conductivity in the gap, has both increased heat conduction area, does not influence the original structure of linear electric motor again, directly carries out high-efficient heat conduction from linear electric motor inside, can gain better accuse temperature effect, has fine application prospect.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a linear electric motor based on T shape flattens heat pipe which characterized in that: the heat pipe comprises two bending parts formed by respectively bending two ends of the heat pipe and a folded part formed by folding the two bending parts, wherein an opening of the folded part faces the base, is embedded between the two rotor windings and is tightly attached to the two rotor windings; the two bending parts are respectively bent along the bottoms of the two rotor windings and embedded between the rotor windings and the base, the base is provided with a liquid cooling channel, and the liquid cooling channel is arranged on one side of the bending part.
2. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: the included angle between the folded part and the bent part of the heat pipe is 90 degrees.
3. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: the longitudinal section of the heat pipe is T-shaped.
4. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: the height of the folded part of the heat pipe is the same as that of the rotor winding.
5. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: the number of the heat pipes between the two rotor windings is multiple, and the heat pipes are sequentially arranged and are tightly attached to the two rotor windings.
6. A linear motor based on T-shape flattened heat pipes as defined in claim 1 wherein: the rotor winding comprises a winding main body and winding heads connected to the end portion of the winding main body, the winding main body is tightly attached to the folded portion of the heat pipe, the base is provided with grooves, the winding heads of the two rotor windings are embedded into the grooves of the base side by side, and the liquid cooling channels are located below the grooves.
7. A linear motor based on T-shaped flattened heat pipes as defined in claim 6 wherein: the groove and the rotor winding head are in surface contact.
8. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: and heat-conducting interface materials are filled between the heat pipe and the rotor winding and between the heat pipe and the base.
9. A linear motor based on T-shape flattened heat pipes as defined in claim 8 wherein: the heat-conducting interface material comprises heat-conducting silicone grease, heat-conducting mud or heat-conducting glue.
10. A linear motor based on a T-shaped collapsing heat pipe according to claim 1, wherein: the liquid cooling channel quantity has a plurality ofly, and the portion below of buckling is located respectively to a plurality of liquid cooling channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066134.6U CN218217018U (en) | 2022-08-08 | 2022-08-08 | Linear motor based on T-shaped flattening heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066134.6U CN218217018U (en) | 2022-08-08 | 2022-08-08 | Linear motor based on T-shaped flattening heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218217018U true CN218217018U (en) | 2023-01-03 |
Family
ID=84653436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222066134.6U Active CN218217018U (en) | 2022-08-08 | 2022-08-08 | Linear motor based on T-shaped flattening heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218217018U (en) |
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2022
- 2022-08-08 CN CN202222066134.6U patent/CN218217018U/en active Active
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