CN107634636B - Linear motor for exposed sliding door - Google Patents
Linear motor for exposed sliding door Download PDFInfo
- Publication number
- CN107634636B CN107634636B CN201711015309.8A CN201711015309A CN107634636B CN 107634636 B CN107634636 B CN 107634636B CN 201711015309 A CN201711015309 A CN 201711015309A CN 107634636 B CN107634636 B CN 107634636B
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- Prior art keywords
- sliding door
- linear motor
- coil
- stator
- core
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000008358 core component Substances 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Linear Motors (AREA)
Abstract
The invention relates to a linear motor for an exposed sliding door, which is provided with a stator and a rotor, wherein the stator comprises a shell and a wire core assembly, the wire core assembly is arranged in the shell, and the shell is provided with an opening part, so that the wire core assembly is at least partially exposed outwards. The driving force provided by the linear motor for the sliding door can be enhanced, and the heat dissipation loss is reduced.
Description
Technical Field
The invention relates to a sliding door, in particular to a linear motor for an exposed sliding door, belonging to the manufacturing technology of architectural decoration hardware fittings.
Background
The sliding door driven by the linear motor is a common automatic door type and has the advantages of ultra-silence, smooth sliding and the like. The stator coil 02 of the linear motor is wound on the iron core 03, and a magnetic field exists around the stator coil due to the electromagnetic induction principle, and the magnetic field acts on the magnet of the mover member, so that the mover assembly is driven to move by the generated magnetic force. Since the speed of the mover assembly needs to be controlled, the driving force magnitude needs to be adjusted, and the magnetic field strength is not a constant amount. Also, since the sliding door speed is constantly changing, the change of the magnetic field around the stator coil controlling the sliding door is also strong. As shown in fig. 1, the varying magnetic field will generate eddy currents on the metal plate 01 (e.g. aluminum plate) around the stator of the linear motor, the eddy currents inside the conductor will generate heat, and when the eddy currents are strong, the generated heat is great. The generation of this heat on the one hand loses the supply of electricity to the linear motor and on the other hand the eddy currents on the metal plate will also have a weakening effect on the magnetic field of the stator coil 02, the driving force obtained by the sliding door being reduced.
Disclosure of Invention
The invention aims to facilitate the technical problems of enhancing the driving force of a linear motor for a sliding door and reducing the heat generation of the linear motor.
In order to solve the technical problems, the invention adopts the following technical scheme: a linear motor for an exposed sliding door has a stator and a mover, the stator including a housing and a core assembly disposed in the housing, the housing having an opening to expose the core assembly at least partially outwardly.
The opening part exposing the wire core assembly to the outside suppresses the generation of eddy currents on conductors around the wire core assembly, weakens the influence of the eddy currents, can enhance the driving force provided by the linear motor for the sliding door, and reduces heat dissipation loss.
Further, the opening is an opening groove formed on a surface of the case facing the mover. The stator generates magnetic field to provide magnetic force for the rotor, the surface of the stator shell facing the rotor has high possibility of eddy current, and the opening part is arranged at the position, so that the influence of the eddy current can be effectively weakened.
Further, the number of the open slots is one, and the open slots extend through the shell in the length direction. The open slot in the form of a through-going is advantageous for the processing of the housing.
Further, the housing opening has a restricting portion that restricts removal of the core assembly from the opening. The limiting part is designed to facilitate the wire core assembly to be accommodated in the shell with the opening part, and the wire core assembly cannot be easily separated from the stator assembly.
Further, the limiting part is a folded edge formed by two side edges of the shell towards the middle. The limiting part is formed by folding edges, so that the simple limiting part forming mode can effectively ensure that the wire core assembly cannot be separated easily.
Further, the wire core assembly comprises a coil and an iron core, wherein the coil is wound on the iron core, the wire core assembly further comprises a coil framework, and the coil framework is arranged between the coil and the iron core. The coil framework facilitates winding on the iron core.
Further, the coil skeleton is sleeved on the iron core through the through hole, one end edge of the through hole is provided with a flange, and the flange is abutted against the inner surface of the folded edge. Therefore, the whole wire core assembly cannot be separated from the opening part through the matching of the coil framework and the folded edge.
Further, the other end of the through hole of the coil skeleton is provided with lugs on two sides in the direction perpendicular to the stator assembly, the lugs are bent towards the base of the iron core, and the wires are buried under the lugs. The structural design of the coil framework fixes the wire core assembly, and also provides a space for fixing the wires, so that the wiring in the stator assembly is tidy.
Further, the core assembly is a plurality of, and the iron core of the core assembly is formed by superposing a plurality of iron sheets. The iron sheets are overlapped to form the iron core group, so that the iron core can be manufactured at low cost.
Further, an opening is formed in a side surface of the case. The side vortex is restrained, the driving force can be enhanced to a certain extent, and the heat loss is reduced.
Drawings
FIG. 1 is a partial schematic view of a prior art linear motor stator structure;
fig. 2 is a perspective view of a stator according to a first embodiment of the present invention;
FIG. 3 is an exploded view of a stator according to a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a stator according to a first embodiment of the present invention;
FIG. 5 is a bottom view of the stator of the first embodiment of the present invention;
FIG. 6 is a cross-sectional view of a housing of a first embodiment of the present invention;
fig. 7 is a perspective view of a core according to a first embodiment of the present invention;
FIG. 8 is a perspective view of a bobbin of a first embodiment of the present invention;
FIG. 9 is a schematic representation of a second embodiment of the present invention;
wherein the reference numerals have the following meanings:
stator 10
Shell 1
Edge folding 12 of open groove 11
Iron core 2
Base 22 of iron sheet 21
Coil 3
Coil former 4
Flange 41
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
A linear motor for an exposed sliding door has a stator and a mover, the stator including a housing and a core assembly disposed in the housing, the housing having an opening to expose the core assembly at least partially outwardly.
The opening part exposing the wire core assembly to the outside suppresses the generation of eddy currents on conductors around the wire core assembly, weakens the influence of the eddy currents, can enhance the driving force provided by the linear motor for the sliding door, and reduces heat dissipation loss.
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
First embodiment
In the present embodiment, a linear motor for a sliding door includes a stator 10 and a mover (not shown). The stator 10 has a coil through which current passes to generate a magnetic field, a magnet is mounted in the mover, the magnetic field generated by the stator 10 acts on the mover with the magnet, and the generated magnetic force pushes the mover to move. The door body of the sliding door is connected with the rotor, and the motion of the rotor drives the sliding door to move, so that the sliding door is opened or closed.
As shown in fig. 1, the stator 10 is generally rectangular in cross section and is elongate. Outside is a housing 1, and various parts for generating magnetic fields are arranged inside the housing 1, as shown in fig. 3. The internal components will be described in detail later. The housing 1 may be extruded from a metal material.
In this embodiment, the opening is an opening groove 11 formed in the surface of the case 1 facing the mover, as shown in fig. 6. The section of the shell 1 is U-shaped, and the open slot 11 is opposite to the rotor. Since the stator generates a magnetic field to provide a magnetic force to the mover, the surface of the stator housing facing the mover has a high possibility of eddy currents, and the influence of the eddy currents can be efficiently weakened by providing the opening at the position.
Preferably, the number of the open grooves 11 is one, and the open grooves extend through the housing 1 in the longitudinal direction. The open slot in the form of a through-going is advantageous for the processing of the housing. The case 1 with the open groove 11 may be formed by bending a metal plate into a "U". The open groove 11 may be formed by cutting after forming the columnar case.
In this embodiment, the opening groove 11 of the housing 1 has a restricting portion that restricts the removal of the core assembly from the opening portion. The limiting part is designed to facilitate the wire core assembly to be accommodated in the shell with the opening part, and the wire core assembly cannot be easily separated from the stator assembly.
Preferably, the restriction is a hem 12, as shown in FIG. 6. The folded edge 12 is provided with two symmetrical left and right sides, is respectively perpendicular to the side edges of the shell 1 and is formed towards the middle of the shell. The folded edges 12 may be formed by bending both sides of the case 1 toward the middle. Or may be integrally formed with the housing 1. The limiting part is formed by the folded edge 12, which is a simple limiting part forming mode and can effectively ensure that the wire core assembly cannot be separated easily.
As shown in fig. 3, the core assembly includes a coil 3 and an iron core 2, the coil 3 is wound on the iron core 2, and the core assembly further includes a bobbin 4 disposed between the coil 3 and the iron core 2. The bobbin 4 facilitates winding on the core.
The core 2 is structured as shown in fig. 7. In this embodiment, the stator 10 requires a plurality of groups of core assemblies, i.e., a plurality of cores 2. The present embodiment employs iron sheets 21 stacked to form the core row. The iron piece 21 is shaped as shown in fig. 7. The iron sheets are overlapped to form the iron core group, so that the iron core can be manufactured at low cost. The bottom of the formed core 2 is a base 22.
The coil skeleton 4 has a through hole, and the coil skeleton 4 is located iron core 2 through the through hole cover. As shown in fig. 8, one end edge of the through hole has a flange 41, which end is remote from the base of the core 2. The flange 41 is protruded in a direction perpendicular to the axial direction of the through hole, and can be integrally formed with the through hole. As shown in fig. 4, the flange 41 abuts against the inner surface of the flange 12 in the positional relationship with the housing 1. Thus, the whole wire core assembly cannot be separated from the open groove 11 through the matching of the coil framework 4 and the folded edge 12.
In addition, the flange 41 itself can prevent the coil 3 from coming out from the end of the flange 41 when the coil 3 is wound around the core 2, thereby disturbing the winding.
Further, the end of the bobbin 4 through-hole near the base of the core 2 has lugs 42 on both sides in the direction perpendicular to the stator assembly, as shown in fig. 8. The lugs 42 are bent toward the base 2 of the core, and like the flanges 41, can be integrally formed with the body of the bobbin 4. The flange 41 and the lug 42 provide space for winding the coil 3, and the coil 3 can be conveniently wound around the periphery of the iron core 2 and the coil bobbin 4 between the flange 41 and the lug 42.
The coils 3 of the core assembly in the stator 10 all require connection wires to be energized. In general, the wiring is relatively large and complicated, and the structure of the entire stator 10 is also easily complicated. In this embodiment, as shown in fig. 4, there is a space under the lug 42 where the wire is buried. The conductors of the stator 10 connecting the coils 3 can be placed at the bottom of the lugs 42. The structural design of the coil framework fixes the wire core assembly, and also provides a space for fixing and arranging the wires, so that the wires are hidden, and the wiring in the stator assembly is tidy.
Second embodiment
As shown in fig. 9, unlike fig. 5, the second embodiment has a plurality of open slots 11 arranged at intervals along the longitudinal direction of the stator 1 and corresponding to the positions of the cores 2. Such an open groove 11 is easily effective in weakening the vortex flow in the housing. At the same time, a housing part is provided between the open grooves 11, and the housing of the part can also be matched with the upper flange 41 of the coil bobbin 4.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (7)
1. The utility model provides an exposed linear electric motor for sliding door, has stator and active cell, its characterized in that: the stator includes a housing and a core assembly disposed in the housing, the housing having an opening exposing the core assembly at least partially outwardly;
the housing opening has a restricting portion that restricts removal of the core assembly from the opening;
the magnet is arranged in the rotor, and the stator generates a magnetic field to provide a magnetic force for pushing the rotor with the magnet to move;
the opening is an opening groove formed on a surface of the housing facing the mover.
2. The linear motor for an exposed sliding door according to claim 1, wherein: the opening groove is one, and extends through along the length direction of the shell.
3. The linear motor for an exposed sliding door according to claim 1, wherein: the limiting part is a folded edge formed by two side edges of the shell towards the middle respectively.
4. A linear motor for an exposed sliding door according to claim 3, wherein: the wire core assembly comprises a coil and an iron core, wherein the coil is wound on the iron core, the wire core assembly further comprises a coil framework, and the coil framework is arranged between the coil and the iron core.
5. The linear motor for an exposed sliding door according to claim 4, wherein: the coil skeleton is located through the through-hole cover the iron core, the one end reason of through-hole has the flange, the flange butt hem internal surface.
6. The linear motor for an exposed sliding door according to claim 5, wherein: the other end of the coil framework through hole is provided with lugs on two sides in the direction perpendicular to the stator assembly, the lugs are bent towards the base of the iron core, and wires are buried under the lugs.
7. The linear motor for an exposed sliding door according to claim 5 or 6, wherein: the core components are several, and the iron cores of the core components are formed by superposing a plurality of iron sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015309.8A CN107634636B (en) | 2017-10-26 | 2017-10-26 | Linear motor for exposed sliding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015309.8A CN107634636B (en) | 2017-10-26 | 2017-10-26 | Linear motor for exposed sliding door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107634636A CN107634636A (en) | 2018-01-26 |
| CN107634636B true CN107634636B (en) | 2024-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711015309.8A Active CN107634636B (en) | 2017-10-26 | 2017-10-26 | Linear motor for exposed sliding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107634636B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396028B (en) * | 2021-12-01 | 2024-01-26 | 国网福建省电力有限公司 | Water blocking door for main traffic hole of electric station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101379A (en) * | 1992-09-17 | 1994-04-12 | Fuji Electric Co Ltd | Linear motor type door opening/shutting device |
| JP2001262936A (en) * | 2000-03-17 | 2001-09-26 | Matsushita Electric Works Ltd | Automatic door |
| CN101084512A (en) * | 2004-10-28 | 2007-12-05 | 普罗-麦克龙模件系统有限及两合公司 | Transponder system |
| CN102315710A (en) * | 2010-07-01 | 2012-01-11 | Hrs风电技术有限公司 | Fixing structure of permanent magnet generator or motor permanent magnet |
| CN207426949U (en) * | 2017-10-26 | 2018-05-29 | 中山市欧派克五金制品有限公司 | A kind of exposed sliding door linear motor |
-
2017
- 2017-10-26 CN CN201711015309.8A patent/CN107634636B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101379A (en) * | 1992-09-17 | 1994-04-12 | Fuji Electric Co Ltd | Linear motor type door opening/shutting device |
| JP2001262936A (en) * | 2000-03-17 | 2001-09-26 | Matsushita Electric Works Ltd | Automatic door |
| CN101084512A (en) * | 2004-10-28 | 2007-12-05 | 普罗-麦克龙模件系统有限及两合公司 | Transponder system |
| CN102315710A (en) * | 2010-07-01 | 2012-01-11 | Hrs风电技术有限公司 | Fixing structure of permanent magnet generator or motor permanent magnet |
| CN207426949U (en) * | 2017-10-26 | 2018-05-29 | 中山市欧派克五金制品有限公司 | A kind of exposed sliding door linear motor |
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| Publication number | Publication date |
|---|---|
| CN107634636A (en) | 2018-01-26 |
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