CN109778450A - A kind of sewing machine electric air-suction wound packages is set - Google Patents

A kind of sewing machine electric air-suction wound packages is set Download PDF

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Publication number
CN109778450A
CN109778450A CN201910204579.6A CN201910204579A CN109778450A CN 109778450 A CN109778450 A CN 109778450A CN 201910204579 A CN201910204579 A CN 201910204579A CN 109778450 A CN109778450 A CN 109778450A
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CN
China
Prior art keywords
mentioned
cavity
impeller
gas outlet
heat dissipation
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Pending
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CN201910204579.6A
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Chinese (zh)
Inventor
万义明
林晓晓
洪志敏
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Jack Sewing Machine Co Ltd
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Jack Sewing Machine Co Ltd
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Priority to CN201910204579.6A priority Critical patent/CN109778450A/en
Publication of CN109778450A publication Critical patent/CN109778450A/en
Pending legal-status Critical Current

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Abstract

The present invention provides a kind of sewing machine electric air-suction wound packages to set, and belongs to technical field of sewing machines.It is bad to induced-draught electric motor heat dissipation effect that it solves the problems, such as that existing electric air-suction wound packages is set.This electric air-suction wound packages is set including the internal cylinder and upper cap assembly with cavity, upper cap assembly includes upper cover plate, filtering screen and driver assembly, upper cover plate is equipped with the suction pipe being connected to above-mentioned cavity, driver assembly includes motor cabinet, motor body, first impeller and the second impeller, motor cabinet, which has, is spaced from each other disconnected first cavity and the second cavity, the first air inlet being connected to above-mentioned first cavity is provided on motor cabinet, first gas outlet and the second air inlet being connected to the second cavity and the second gas outlet, first impeller and the second impeller are located in above-mentioned first cavity and the second cavity.This electric air-suction wound packages, which is set, has the advantages that good heat dissipation effect, noise reduction effect are good.

Description

A kind of sewing machine electric air-suction wound packages is set
Technical field
The invention belongs to technical field of sewing machines, it is related to a kind of sewing machine electric air-suction wound packages and sets.
Background technique
Air intake device is one of extremely important attachment device in sewing machine, for collecting the impurity such as the end of a thread and cloth waste.Mesh Before, air intake device is divided into two classes: one kind is the pneumatic air intake device of external gas source cooperation, and one kind is motor-driven electric air-suction Device.Pneumatic air intake device structure and the relative complex, higher cost of installation, suction size are affected by plant source.It is existing Electric air-suction apparatus structure it is relatively easy, the mode for sucking air is vertical sucking, and suction is small, and air displacement is few, motor temperature It increases, suction efficiency is low.
For this purpose, Chinese patent discloses the air suction structure and inhalation methods [Shen Qing Publication of a kind of use in sewing machine air intake device Number are as follows: CN105544105A], the top cover of the dustbin including storing waste material object, dustbin is equipped with air inlet and air inlet, inhales Air port is connected to induced-draught electric motor, and the spiral air-suction channel being connected with air inlet is equipped in dustbin.It is logical using spiral air draught Road makes to form spiral air flow in dustbin under the suction of induced-draught electric motor, and then generates powerful negative pressure region, makes dustbin There are very strong suction for air inlet, in the case where induced-draught electric motor power is constant, reach strongest air draught effect.
In above-mentioned air suction structure, work always after sewing machine works while induced-draught electric motor also works or the booting of air draught bucket, But the induced-draught electric motor effective time is after trimming or after cutting cloth, if induced-draught electric motor, which works always, will lead to continual suction Gas, motor ceaselessly operate that issued noise big, power consumption and calorific value are big, and prolonged operation causes induced-draught electric motor to make With the service life it is short the problems such as;Meanwhile this dustbin long-time air-breathing, it will lead to the blocking of the filtration fractions such as air draught filter screen, air stream Windage into dustbin becomes larger, and motor temperature rise is high, then there is suction unstability, filter screen replacement frequency is accelerated and maintenance The disadvantages of at high cost, causes dustbin to be unable to satisfy requirement.
To solve the above-mentioned problems, Chinese patent discloses a kind of sewing machine electric air-suction device [application publication number is CN107513818A], it is described including the internal cylinder with cavity and the capping for closed cavity being placed at the top of cylinder Capping is equipped with the air inlet being connected to respectively with cavity and interface, and induced-draught electric motor and strainer are equipped at the air inlet, described Interface be connected with the suction pipe for drawing the end of a thread, which is characterized in that the electric air-suction device further includes having control module, For when the movement of above-mentioned thread cutting mechanism, the control module to control above-mentioned induced-draught electric motor and enters work shape by original state State, after the movement of above-mentioned string-hooking mechanism, the control module controls above-mentioned induced-draught electric motor and is restored to initially by working condition State;Wherein, the original state is that above-mentioned induced-draught electric motor is in standby or low-power operating condition;The working condition The state that runs at high speed with normal suction is in for above-mentioned induced-draught electric motor.Above-mentioned technical proposal controls suction by control module Wind turbine starts work when needing to start work, without closing work when work, to well solve the above problem.But There are still some problems: mainly its induced-draught electric motor is mounted in capping, although induced-draught electric motor is not to work always, Many heats still can be generated in starting work that time, since space is more narrow in covering, close and air is difficult to flow Admittance causes heat dissipation effect very poor, so that also resulting in the local moment fever of induced-draught electric motor influences its service life.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of sewing machine electric air-suction wound packages is proposed It sets.
Object of the invention can be realized by the following technical scheme: a kind of sewing machine electric air-suction wound packages is set, including interior The upper cap assembly that portion has the cylinder of cavity and is placed at the top of cylinder, upper cap assembly includes upper cover plate, filtering screen and driver Assembly upper cover plate is equipped with the suction pipe being connected to above-mentioned cavity, it is characterised in that: the driver assembly includes motor cabinet, motor Main body, the first impeller and the second impeller, the motor cabinet, which has, is spaced from each other disconnected first cavity and the second cavity, described It is provided with the first air inlet being connected to above-mentioned first cavity, the first gas outlet on motor cabinet and is connected to above-mentioned second cavity Second air inlet and the second gas outlet, second air inlet are connected to by above-mentioned filtering screen with above-mentioned cavity, the motor Main body is mounted in the first cavity and above-mentioned first impeller and the second impeller are respectively fixedly connected on motor output shaft both ends, and described the One impeller and the second impeller are located in above-mentioned first cavity and the second cavity.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the upper cap assembly further includes upper cover, the upper cover On offer primary air inlet and heat dissipation gas outlet, installation cavity is formed between upper cover and upper cover plate, above-mentioned first air inlet passes through Above-mentioned installation cavity is connected to primary air inlet, and first gas outlet and the second gas outlet are connect with above-mentioned heat dissipation gas outlet, described Primary air inlet is air-inlet grille.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the wind sucting tube device further includes and above-mentioned driver The controller that assembly is electrically connected, the controller are the exposed circuit board with control chip and are mounted on above-mentioned installation cavity The above-mentioned primary air inlet setting of interior and face.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the motor cabinet include motor cabinet ontology, radiate into Gas hood and the second impeller chimney, it is above-mentioned with inner groovy and the annular groove being looped around on the outside of inner groovy on the motor cabinet ontology Heat dissipation airscoop shroud and the second impeller chimney are fixedly mounted on above-mentioned motor cabinet ontology, the heat dissipation airscoop shroud and above-mentioned inner groovy The first above-mentioned cavity is formd between each other, and second impeller chimney and above-mentioned annular groove form above-mentioned between each other Second cavity, above-mentioned first air inlet and the second air inlet are provided with respectively on the heat dissipation airscoop shroud and the second impeller chimney.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, first gas outlet be provided with above-mentioned heat dissipation into On gas hood, or it is provided on motor cabinet ontology (61).
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the first impeller is also fixed on the motor body Cover, above-mentioned first impeller are located in the first impeller chimney, and the first impeller chimney lateral wall passes through gasket and above-mentioned heat dissipation air inlet Cover is provided on the gasket and the first impeller chimney and matches with above-mentioned first air inlet and what is be connected opens against connection Mouthful.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the driver assembly is mounted on above-mentioned upper cover plate On, and resilient cushion is equipped between driver assembly and upper cover plate.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, first gas outlet and the second gas outlet are half Circle, first gas outlet is spaced from each other with the second gas outlet not to be connected to but forms a cylinder type by setting and pass through one Cylinder type pipeline is connect with above-mentioned heat dissipation gas outlet.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, it is connected with silencing pipeline on the heat dissipation gas outlet, Muffler is installed on the silencing pipeline.
In a kind of above-mentioned sewing machine electric air-suction wound packages is set, the heat dissipation gas outlet include two gas outlets, two A gas outlet is connect with above-mentioned first gas outlet and the second gas outlet respectively, is connected separately with silencing pipeline on two gas outlets, Muffler is mounted on each silencing pipeline.
Compared with prior art, this sewing machine electric air-suction wound packages set have the advantages that it is following several:
1, the heat that secondary radiating mode generates motor work radiates, and to improve heat dissipation effect, extends the motor longevity Life;
2, controller face primary air inlet is arranged, and controller is the exposed electricity with control chip and electronic component Road plate, primary air inlet has air-flow process, so that the heat preferably generated to electronic component radiates;Meanwhile it controlling Independently being provided separately for device and motor, is also convenient for radiating;
3, motor body and the first impeller are mounted in the first cavity, and the second impeller is mounted in the second cavity, and first is empty Chamber and the second cavity are closed cavity, therefore have the function of that preferably barrier reduces high frequency noise, and motor is effectively reduced and turns A large amount of noises that son, the first impeller and the second impeller generate when working, especially the second cavity is looped around the first cavity periphery, right The noise reduction effect of rotor and the first impeller is more preferably;Meanwhile radiating the silencing pipeline that is equipped with of outlet and muffler also has Preferable erasure effect reaches noise-reduction layer by layer, to avoid noise pollution.
Detailed description of the invention
Fig. 1 is the schematic perspective view that this electric air-suction wound packages is set.
Fig. 2 is the top view that this electric air-suction wound packages is set.
Fig. 3 is the cross-sectional view in Fig. 2 at A-A.
Fig. 4 is the enlarged drawing in Fig. 3 at B.
In figure, 1, suction pipe;2, cylinder;21, cavity;3, upper cover;31, primary air inlet;32, heat dissipation gas outlet;4, upper cover plate; 5, installation cavity;6, motor cabinet;61, motor cabinet ontology;611, the second gas outlet;62, radiate airscoop shroud;621, the first air inlet; 622, the first gas outlet;63, the second impeller chimney;631, the second air inlet;7, motor body;71, stator;72, rotor;8, first Impeller;9, the first impeller chimney;10, gasket;11, the second impeller;12, the first cavity;13, the second cavity;14, filtering screen; 15, silencing pipeline;16, muffler;17, controller;18, resilient cushion.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figure 1-3, this sewing machine electric air-suction wound packages is set for collecting the impurity such as the end of a thread and cloth waste.Including controller 17, the internal cylinder 2 with cavity 21 and be placed in the upper cap assembly at 2 top of cylinder, upper cap assembly include upper cover 3, upper cover plate 4, Filtering screen 14 and driver assembly are formed in installation cavity 5 and upper cover 3 between upper cover 3 and upper cover plate 4 and are provided with heat dissipation gas outlet 32 and primary air inlet 31, the primary air inlet 31 of the present embodiment is air-inlet grille, and air-inlet grille is connected to installation cavity 5 and outside air, Air-inlet grille has preferable filtration, enters back into wind sucting tube device after outside air to be carried out to certain filtering.Control Device 17 is the exposed circuit board with control chip and electronic component, i.e. the controller 17 does not have shell, is mounted on installation In chamber 5 and face primary air inlet 31 is arranged, and due to connection between primary air inlet 31 and installation cavity 5 and mutual have is formed with Larger air-flow, air-flow can preferably radiate to the electronic component on circuit board with control chip, face primary air inlet 31 installation site and make heat dissipation effect more preferable with the independently installed mode that separates of motor, thus extend electronic component and The service life of chip is controlled, controller 17 is electrically connected with the realization of driver assembly.Upper cover plate 4 is equipped with and is connected to cavity 21 Suction pipe 1, one end of suction pipe 1 is connected to eedle, at needle plate for collecting the impurity such as the end of a thread and cloth waste, and be collected into cavity 21 It is interior.Heat dissipation is connected with silencing pipeline 15 on gas outlet 32, and muffler 16, silencing pipeline 15 and the external world are equipped on silencing pipeline 15 Connection.
As shown in Figures 3 and 4, driver assembly includes motor cabinet 6, motor body 7, the first impeller 8 and the second impeller 11.Electricity Base 6 includes motor cabinet ontology 61, heat dissipation airscoop shroud 62 and the second impeller chimney 63, and motor cabinet ontology 61 uses thermally conductive good material It is made, such as aluminium or copper material, there is good heating conduction.In there is inner groovy on motor cabinet ontology 61 and be looped around Annular groove on the outside of groove, heat dissipation airscoop shroud 62 and the second impeller chimney 63 are fixedly mounted on the both ends of motor cabinet ontology 61 On, wherein heat dissipation airscoop shroud 62 and inner groovy form the first cavity 12, the second impeller chimney 63 and annular groove phase between each other The second cavity 13 is formd between mutually, the first cavity 12 is separated between each other with the second cavity 13 and is not connected to.Motor body 7 includes Rotor 72, stator 71 and rotation axis, rotor 72 are connected on the rotating shaft, have gap, the first leaf between rotor 72 and stator 71 Wheel 8 and the second impeller 11 are respectively fixedly connected at rotation axis both ends.It is fixed with the first impeller chimney 9 on stator 71, the first impeller 8 is located at the In one impeller chimney 9,9 lateral wall of the first impeller chimney is by gasket 10 and heat dissipation airscoop shroud 62 against connection, and radiate airscoop shroud 62 On be provided with the first air inlet 621 and the first gas outlet 622, be provided with and the first air inlet on gasket 10 and the first impeller chimney 9 621 openings for matching and being connected, installation cavity 5 once pass through the first air inlet 621 and above-mentioned gasket 10 and the first impeller Opening on cover 9 is connected to the gap between rotor 72 and stator 71, the gap between rotor 72 and stator 71 and the first cavity 12 connections, the first cavity 12 are connected to by the first gas outlet 622 with heat dissipation gas outlet 32.Therefore, by primary air inlet 31, installation cavity 5, gap between the first air inlet 621 and opening, rotor 72 and stator 71, the first cavity 12, the first gas outlet 622, radiate out Port 32 and silencing pipeline 15 form the first airflow radiating channel, to produce to the first impeller 8 and rotor 72, the work of stator 71 Raw heat preferably distributes.Meanwhile first impeller 8, rotor 72 and stator 71 are mounted in closed first cavity 12 Interior, the noise which effectively generates the work of the first impeller 8, rotor 72 and stator 71 is eliminated, and prevents noise Pollution.
Be provided with the second air inlet 631 on second impeller chimney 63, the second air inlet 631 be located at 14 inner cavity of filtering screen just on Side, the second air inlet 631 are connected to by filtering screen 14 with the cavity 21 of cylinder 2, and the second impeller 11 is located in the second cavity 13. Second air inlet 631 is connected to the second cavity 13, and the second gas outlet 611 is provided on motor cabinet 6, and the second cavity 13 goes out by second Port 611 is connected to heat dissipation gas outlet 32.Therefore, empty by suction pipe 1, cavity 21, filtering screen 14, the second air inlet 631, second Chamber 13, the second gas outlet 611 and heat dissipation gas outlet 32 and silencing pipeline 15 form the second airflow radiating channel, thus to second The heat that impeller 11 generates when working distributes in time, while the noise that the second cavity 13 generates the work of the second impeller 11 has There is preferable Noise Reduction.Simultaneously as the second cavity 13 is looped around on the outer wall of the first cavity 12, and motor cabinet ontology 61 be that thermal conductivity is preferable, and the heat that the second airflow radiating channel can generate stator 71, the work of rotor 72 carries out secondary dissipate Heat, to substantially increase the heat dissipation effect for generating heat to stator 71, the work of rotor 72.And stator 71, rotor 72 and One cavity 12 is located in the second cavity 13, and the second air has preferable sound-deadening and noise-reducing effect to its entirety, thus right The noise that motor work generates carries out secondary noise reduction, substantially increases noise reduction effect, meanwhile, in conjunction with the noise reduction on silencing pipeline 15 Device 16, to greatly reduce the noise when work of entire driver assembly on the whole.
Further, driver assembly is mounted on upper cover plate 4, and damping is equipped between driver assembly and upper cover plate 4 Pad 18, resilient cushion 18 have preferable buffering and damping effect.
Further, the first gas outlet 622 and the second gas outlet 611 are semicircle, and the first gas outlet 622 and second go out Port 611, which is spaced from each other, not to be connected to but forms a cylinder type by setting and pass through a cylinder type pipeline and heat dissipation gas outlet 32 Connection.Alternatively, heat dissipation gas outlet 32 also may include two gas outlets, two gas outlets respectively with the first outlet Mouthfuls 622 and second gas outlet 611 connect, be connected separately with silencing pipeline 15 on two gas outlets, on each silencing pipeline 15 Muffler 16 is installed.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (10)

1. a kind of sewing machine electric air-suction wound packages is set, including the internal cylinder (2) with cavity (21) and it is placed at the top of cylinder (2) Upper cap assembly, upper cap assembly includes upper cover plate (4), filtering screen (14) and driver assembly, upper cover plate (4) be equipped with it is upper State the suction pipe (1) of cavity (21) connection, it is characterised in that: the driver assembly includes motor cabinet (6), motor body (7), the One impeller (8) and the second impeller (11), the motor cabinet (6), which has, is spaced from each other disconnected first cavity (12) and the second sky Chamber (13) is provided with the first air inlet (621) being connected to above-mentioned first cavity (12), the first gas outlet on the motor cabinet (6) (622) and with above-mentioned second cavity (13) the second air inlet (631) being connected to and the second gas outlet (611), described second into Port (631) is connected to by above-mentioned filtering screen (14) with above-mentioned cavity (21), and the motor body (7) is mounted on the first cavity (12) in and above-mentioned first impeller (8) and the second impeller (11) are respectively fixedly connected on motor output shaft both ends, first impeller (8) it is located in above-mentioned first cavity (12) and the second cavity (13) with the second impeller (11).
2. a kind of sewing machine electric air-suction wound packages according to claim 1 is set, which is characterized in that the upper cap assembly is also Including upper cover (3), primary air inlet (31) and heat dissipation gas outlet (32), upper cover (3) and upper cover plate are offered on the upper cover (3) (4) it is formed between installation cavity (5), above-mentioned first air inlet (621) is connected by above-mentioned installation cavity (5) and primary air inlet (31) Logical, first gas outlet (622) and the second gas outlet (611) are connect with above-mentioned heat dissipation gas outlet (32), the primary air inlet It (31) is air-inlet grille.
3. a kind of sewing machine electric air-suction wound packages according to claim 2 is set, which is characterized in that the wind sucting tube device It further include the controller (17) being electrically connected with above-mentioned driver assembly, the controller (17) is exposed with control chip Circuit board and be mounted in above-mentioned installation cavity (5) and the above-mentioned primary air inlet of face (31) is arranged.
4. a kind of sewing machine electric air-suction wound packages according to claim 3 is set, which is characterized in that the motor cabinet (6) Including motor cabinet ontology (61), heat dissipation airscoop shroud (62) and the second impeller chimney (63), have on the motor cabinet ontology (61) interior Groove and the annular groove being looped around on the outside of inner groovy, above-mentioned heat dissipation airscoop shroud (62) and the second impeller chimney (63) are fixedly mounted On above-mentioned motor cabinet ontology (61), the heat dissipation airscoop shroud (62) and above-mentioned inner groovy form above-mentioned first between each other Cavity (12), second impeller chimney (63) and above-mentioned annular groove form above-mentioned the second cavity (13) between each other, on It states the first air inlet (621) and the second air inlet (631) is provided with the heat dissipation airscoop shroud (62) and the second impeller chimney respectively (63) on.
5. a kind of sewing machine electric air-suction wound packages according to claim 4 is set, which is characterized in that first gas outlet (622) it is provided on above-mentioned heat dissipation airscoop shroud (62), or is provided on motor cabinet ontology (61).
6. a kind of sewing machine electric air-suction wound packages according to claim 4 or 5 is set, which is characterized in that the motor master It is also fixed on body (7) the first impeller chimney (9), above-mentioned first impeller (8) is located in the first impeller chimney (9), first impeller It covers (9) lateral wall and connection, and the gasket (10) and first is abutted by gasket (10) and above-mentioned heat dissipation airscoop shroud (62) The opening for matching and being connected with above-mentioned first air inlet (621) is provided on impeller chimney (9).
7. a kind of sewing machine electric air-suction wound packages according to claim 1 is set, which is characterized in that the driver assembly It is mounted on above-mentioned upper cover plate (4), and is equipped with resilient cushion (18) between driver assembly and upper cover plate (4).
8. a kind of sewing machine electric air-suction wound packages according to claim 6 is set, which is characterized in that first gas outlet (622) and the second gas outlet (611) are semicircle, and first gas outlet (622) and the second gas outlet (611) are spaced from each other It is not connected to but forms a cylinder type by setting and connect by a cylinder type pipeline with above-mentioned heat dissipation gas outlet (32).
9. a kind of sewing machine electric air-suction wound packages according to claim 8 is set, which is characterized in that the heat dissipation gas outlet (32) it is connected on silencing pipeline (15), muffler (16) is installed on the silencing pipeline (15).
10. a kind of sewing machine electric air-suction wound packages according to claim 8 is set, which is characterized in that the heat dissipation outlet Mouth (32) includes two gas outlets, and two gas outlets connect with above-mentioned first gas outlet (622) and the second gas outlet (611) respectively It connects, is connected separately on two gas outlets silencing pipeline (15), be mounted on muffler (16) on each silencing pipeline (15).
CN201910204579.6A 2019-03-18 2019-03-18 A kind of sewing machine electric air-suction wound packages is set Pending CN109778450A (en)

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CN201910204579.6A CN109778450A (en) 2019-03-18 2019-03-18 A kind of sewing machine electric air-suction wound packages is set

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1622243A1 (en) * 2004-07-30 2006-02-01 Siemens Aktiengesellschaft Electric motor
CN105063911A (en) * 2015-07-24 2015-11-18 玉环奕友电子有限公司 Dust collecting barrel of sewing machine and working steps thereof
CN105063912A (en) * 2015-07-24 2015-11-18 玉环奕友电子有限公司 Dust collecting barrel of sewing machine
CN105544105A (en) * 2015-12-11 2016-05-04 杰克缝纫机股份有限公司 Suction structure and suction method for air suction device of sewing machine
CN106160315A (en) * 2016-08-02 2016-11-23 天津飞旋科技研发有限公司 The pure air-cooled heat dissipation structure of magnetic suspension motor with two impellers
CN107513818A (en) * 2017-09-06 2017-12-26 杰克缝纫机股份有限公司 Sewing machine electric air-suction device
CN206986479U (en) * 2017-07-31 2018-02-09 杰克缝纫机股份有限公司 A kind of air draught bucket and sewing machine for sewing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1622243A1 (en) * 2004-07-30 2006-02-01 Siemens Aktiengesellschaft Electric motor
CN105063911A (en) * 2015-07-24 2015-11-18 玉环奕友电子有限公司 Dust collecting barrel of sewing machine and working steps thereof
CN105063912A (en) * 2015-07-24 2015-11-18 玉环奕友电子有限公司 Dust collecting barrel of sewing machine
CN105544105A (en) * 2015-12-11 2016-05-04 杰克缝纫机股份有限公司 Suction structure and suction method for air suction device of sewing machine
CN106160315A (en) * 2016-08-02 2016-11-23 天津飞旋科技研发有限公司 The pure air-cooled heat dissipation structure of magnetic suspension motor with two impellers
CN206986479U (en) * 2017-07-31 2018-02-09 杰克缝纫机股份有限公司 A kind of air draught bucket and sewing machine for sewing machine
CN107513818A (en) * 2017-09-06 2017-12-26 杰克缝纫机股份有限公司 Sewing machine electric air-suction device

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