CN105743281A

CN105743281A - Linear motor

Info

Publication number: CN105743281A
Application number: CN201410751010.9A
Authority: CN
Inventors: 陈弥坚; 邵启焕
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2014-12-10
Filing date: 2014-12-10
Publication date: 2016-07-06

Abstract

The invention discloses a linear motor, and the motor comprises a pedestal, a stator disposed on the pedestal, and a rotor air flow guide device which is disposed on the stator and can move relative to the stator. The stator is provided with opposite ports. The air flow guide device is arranged to be close to the ports of the stator, so as to drive the air flow in the stator to move.

Description

Linear motor

Technical field

The present invention relates to a kind of linear motor.

Background technology

Linear motor is used widely due to superior functions such as it are easy to control, frictional wear rate is little, energy conversion rate is high, noise is little.Cooling radiator structure is generally set inside linear motor, so that the stator of linear motor and mover to be lowered the temperature, it is ensured that the normal operation of linear motor.But, the cooling radiator structure of usual linear motor is arranged on mover, fills gelled heat radiation sleeve as arranged on mover, and structure is complex, it has not been convenient to assemble.

Summary of the invention

Mirror is at above-mentioned condition, and the present invention provides the linear motor of a kind of simple in construction and ease of assembly.

A kind of linear motor, it includes base, the stator that is arranged on base, be installed in stator can the mover airflow guidance device that moves of relative stator.Stator has the port being oppositely arranged.The port of airflow guidance device adjacent stator is arranged, to drive the air motion in stator.

Linear motor provided by the invention, it directly arranges airflow guidance device in stator port place, and simple in construction is easy to assembly, to drive the air motion in stator to take away heat, and then reaches to cool.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of the linear motor of embodiment of the present invention.

Fig. 2 is the schematic perspective view of the base of the linear motor shown in Fig. 1.

Main element symbol description

Linear motor 100

Base 10

Stator 20

Cooling duct 12

Flow portion 124

Opening 1242

Inlet 126

Outlet 128

Stator framework 22

The first side wall 224

Second sidewall 226

3rd sidewall 228

Port 229

Permanent magnet groups 24

First permanent magnet groups 242

Second permanent magnet groups 244

Mover 50

Airflow guidance device 70

Slide rail 80

Load bearing seat 90

Main body 91

Slide block 93

Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Detailed description of the invention

Referring to Fig. 1, the embodiment of the present invention provides a kind of linear motor 100, and it includes base 10, the stator 20 that is arranged on base 10, be installed in stator 20 can the mover 50 that moves of relative stator 20 and two airflow guidance devices 70.Stator 20 has the port 229 being oppositely arranged.Two ports 229 that two airflow guidance devices 70 are respectively adjacent to stator 20 are arranged, internal so that air-flow to introduce stator 20, and then drive the air motion in stator 20, it is achieved cooling heat radiation.

Incorporated by reference to consulting Fig. 2, base 10 is substantially plate-shaped, it is formed and is connected externally to the cooling duct 12 that leads to, with flow-through fluid, linear motor 100 carries out cooling heat radiation.Cooling duct 12 includes flow portion 124, inlet 126 and outlet 128.Flow portion 124 is substantially u-shaped, and wriggles and is formed at base 10, and it has opening 1242.On inlet 126 and the spaced apart one side being located at base 10 of outlet 128 and be connected with flow portion 124 respectively.Inlet 126 is connected for liquid/gas equipment with outside one, in order to fluid to inject flow portion 124.Outlet 128 is in order to discharge base 10 by the liquid in flow portion 124, and then takes away heat.

Stator 20 is installed on base 10.In present embodiment, stator 20 includes stator framework 22 and permanent magnet groups 24.The generally U-shaped structure of stator framework 22, it includes the first side wall the 224, second sidewall 226 and the 3rd sidewall 228.Substantially vertical connection the second sidewall 226 of the first side wall 224 and the 3rd sidewall 228.Second sidewall 226 is installed on base 10 and covers the opening 1242 of flow portion 124.Second sidewall 226 and the 3rd sidewall 228 are oppositely arranged.Permanent magnet groups 24 includes the first permanent magnet groups 242 and the second permanent magnet groups 244.First permanent magnet groups 242 is installed in the 3rd sidewall 228 on the medial surface of the second sidewall 226, and the second permanent magnet groups 244 is installed in the second sidewall 226 on the medial surface of the 3rd sidewall 228.Two ports 229 are arranged at stator framework 22 opposite end.

Mover 50 is arranged between the first permanent magnet groups 242 and the second permanent magnet groups 244.In present embodiment, mover 50 is provided with coil (not shown).The magnetic field interaction that the magnetic field that first permanent magnet groups 242 and the second permanent magnet groups 244 produce itself can produce with mover 50, and then promote mover 50 to move.

Two airflow guidance devices 70 are fixedly installed on base 10, and the Single port 229 of each airflow guidance device 70 adjacent stator framework 22 is arranged.Stator framework 22 is arranged between two airflow guidance devices 70, and is arranged in a linear with two airflow guidance devices 70.Present embodiment, airflow guidance device 70 is fan, its air current flow that can promote in stator framework 22, uses and carries out heat exchange, and then when being operated by linear motor 100, produced used heat takes heat radiation out of, to reduce linear motor 100 operating temperature.It is understood that airflow guidance device 70 can be arranged to air gun, gas is injected stator framework 22 by air gun, and then actuates the air current flow in stator framework 22.70 need of airflow guidance device can cause air-flow to flow in stator framework 22 and carry out heat exchange.

Linear motor 100 also includes two slide rails 80 and a load bearing seat 90.Two slide rails 80 are arranged on base 10, and and the setting of stator framework 22 interval, and stator framework 22 is between two slide rails 80.Load bearing seat 90 includes main body 91 and is installed in the plural slide block 93 of main body 91 both sides.Main body 91 and mover 50 are fixedly connected, and are positioned on the stator framework 22 side away from base 10.Some slide blocks 93 slide with corresponding slide rail 80 and connect.It is understood that the quantity of slide rail 80 and slide block 93 is according to being actually needed setting.

During use, by water or other cooling mediums, enter flow portion 124 through inlet 126, discharge then through outlet 128.Due to coil excitation and linear motor 100 produced heat when operating, can be transmitted to gradually on stator 20, be operated by the fluid system of base 10, direct fluid into stator 20 times, utilize liquid stream exchange to be taken away by used heat, reduce the purpose of operating temperature.Start airflow guidance device 70 simultaneously, operated by the airflow guidance device 70 at two ends, air-flow is guided and is blown into stator framework 22, utilize air-flow exchange to be taken away by used heat, reduce the purpose of operating temperature.

Linear motor 100 provided by the invention, directly arranges airflow guidance device 70 in stator 20 two ends, and simple in construction is easy to assembly, walks heat by airflow guidance device 70 band moving air flow fluxion strap in stator 20, linear motor 100 is dispelled the heat.Separately, base 10 directly arranging cooling duct 12, it walks heat by fluid fluxion strap in cooling duct 12, dispels the heat further.

It is appreciated that, it is possible to omit cooling duct 12.The quantity of cooling duct 12 can be set to more than one, and base 10 is located at interval.The shape of cooling duct 12 is also not limited to U-shaped, and it also can linearly be arranged on base 10, or is arranged on base 10 for other bending shape, as having cooling duct of turning round of multiple continuous uniform arrangement etc..Flow portion 124 is not limited to the groove shaped flow conduits structure with opening 1242, and it is alternatively the runner of closed.The inlet 126 of cooling duct 12 and outlet 128 do not limit on the same side being formed at base 10, and inlet 126 and outlet 128 can be respectively formed on the not ipsilateral of base 10.

Being appreciated that the quantity of airflow guidance device 70 can be set to one, it is disposed therein Single port 229；The quantity of airflow guidance device 70 may be configured as plural number, on-demand it can be arranged in stator framework 22 two-port 229.

It is appreciated that and can omit slide rail 80 and load bearing seat 90.

It addition, those skilled in the art can also do other change in the present invention, certainly, these changes done according to present invention spirit, all should be included in present invention scope required for protection.

Claims

1. a linear motor, it includes base, be arranged on this base stator and be installed in this stator can the mover of this stator movement relatively, this stator has the port being oppositely arranged, it is characterized in that: this linear motor also includes at least one airflow guidance device, the corresponding port of this at least one airflow guidance device this stator contiguous is arranged, to drive the air motion in this stator.

2. linear motor as claimed in claim 1, it is characterized in that: this stator includes stator framework and is fixed at the first permanent magnet groups in this stator framework opposing sidewalls and the second permanent magnet groups, this mover is located between this first permanent magnet groups and the second permanent magnet groups, this stator framework and this base are fixedly connected, and these two ports are respectively arranged at the two ends of this stator framework.

3. linear motor as claimed in claim 2, it is characterized in that: this stator framework is U-shape structure, it includes the first side wall, the second sidewall and the 3rd sidewall, this second sidewall is installed on this base, this the first side wall connects this second sidewall and the 3rd sidewall, this second sidewall and the 3rd sidewall are oppositely arranged, this first permanent magnet groups is installed in the 3rd sidewall on the medial surface of this second sidewall, and this second permanent magnet groups is installed in this second sidewall on the medial surface of the 3rd sidewall.

4. linear motor as claimed in claim 2, it is characterized in that: the quantity of this at least one airflow guidance device is two, each airflow guidance device is arranged at a port of this stator framework, and this stator frame body is positioned between these two airflow guidance devices and is arranged in a linear with these two airflow guidance devices.

5. linear motor as claimed in claim 1, it is characterised in that: this airflow guidance device is fan.

6. linear motor as claimed in claim 1, it is characterised in that: this airflow guidance device is air gun.

7. linear motor as claimed in claim 1, it is characterised in that: this base it is formed and is connected externally to the cooling duct that leads to, in order to flow-through fluid, linear motor being carried out cooling heat radiation.

8. linear motor as claimed in claim 7, it is characterised in that: this cooling duct includes flow portion, inlet and outlet, and this flow portion is formed at this base, and this inlet and this outlet are arranged at intervals on this base side and are connected with this flow portion.

9. linear motor as claimed in claim 1, it is characterised in that: this linear motor also includes slide rail and load bearing seat, and this slide rail is arranged on this base and arranges with this sub-interval, and this load bearing seat is fixedly connected with this mover and slides with this slide rail and connects.

10. linear motor as claimed in claim 7, it is characterised in that: this load bearing seat includes main body and the slide block being installed in main body, and this main body and this mover are fixedly connected, and this slide block slides with this slide rail and connects.