CN110126181A - A kind of insulation coil holder and its Split injection moulding process - Google Patents
A kind of insulation coil holder and its Split injection moulding process Download PDFInfo
- Publication number
- CN110126181A CN110126181A CN201910268475.1A CN201910268475A CN110126181A CN 110126181 A CN110126181 A CN 110126181A CN 201910268475 A CN201910268475 A CN 201910268475A CN 110126181 A CN110126181 A CN 110126181A
- Authority
- CN
- China
- Prior art keywords
- terminal
- carrier cover
- cover member
- terminal member
- locating slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3406—Components, e.g. resistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A kind of insulation coil holder Split injection moulding process, the following steps are included: S1. punch forming terminal member, the terminal member includes ring-like connection strap and the terminal portions for being set to two ends of connection strap, and terminal portions, which are equipped with, is formed by terminal hole with the crotch of packet paint wire bonding and the punching press crotch；S2. the terminal hole of terminal member is molded, the plastic part S3. for forming closing terminal hole is tin plating to the progress of terminal member surface；S4. injection molding carrier cover member, which, which is equipped with, can separate the locating slot for installing several terminal members, be equipped in locating slot and be through to the positive connecting groove of carrier cover member and separation positioning bar；S5. several terminal members and carrier cover member are assembled, in locating slot, terminal portions pass through connecting groove and extend to carrier cover member front the terminal member；S6. integral molded plastic is carried out to the sub-assembly after terminal member and the assembling of carrier cover member, injection molding forms the shell at the coated carrier cover member back side, and shell and carrier cover member form insulated wire frame body.
Description
Technical field
The present invention relates to brushless motor technical fields, and in particular to a kind of insulation coil holder and its Split injection moulding process.
Background technique
Motor is made of two main components of stator and rotor, and motor stator generally uses insulation framework to insulate.Insulation
Skeleton is that one kind is set to motor stator end, for the insulation of motor stator end, the moulding with string-passing structure design.
Existing insulated wire frame moulding process is that ring connection terminal is arranged in a mold, single injection-molded.It should
Technique has the following problems: 1. string-passing structures are to be circularized with the connection strap punching press of conductive material, and terminals are arranged at both ends
Son is realized, but the connection strap of punching press is prone to bending rebound phenomenon, causes the circularity of connection strap to be difficult to control, it may appear that terminal
Between coaxial placement when, the case where gap each other is differed, and gap varies.When the gap between terminal is in 0.3 millimeter
Hereinafter, and at 2000 volts of high pressure or more, will appear creepage phenomenon between terminal.2. in injection moulding process, material injection is the need for pressing
Power, due to the gap between connecting terminal and terminal be it is smaller, material projects pressure and may result in and is infusing in terminal
It is deformed during modeling, due to deformation and the winding displacement position in order to reduce terminal, the gap design of mold in mold design
Be 0.02, thus terminal be packed into mold when can be relatively difficult and terminal surfaces are by tin plating processing, the hardness of tin layers will not be very
Height leads to have tin layers when the die-filling tool of terminal falling.3. the placement position of connection strap in a mold is unable to control, after causing injection molding
Terminal offset has further resulted in clearance offsets or even has touched connection.
In conclusion connecting terminal to be disposably molded into the traditional handicraft of insulation coil holder, the product matter manufactured
Amount is difficult to control.
Summary of the invention
The present invention provides a kind of assist three-dimensional scanner and sweeps to member lumens to solve the deficiency of above-mentioned technology
Retouch the tool of mapping.
A kind of technical solution of the present invention: insulation coil holder Split injection moulding process, comprising the following steps: S1. strikes out
Type terminal member, the terminal member include ring-like connection strap and the terminal portions for being set to two ends of connection strap, the terminals
Portion, which is equipped with, is formed by terminal hole with the crotch of packet paint wire bonding and the punching press crotch；
S2. the terminal hole of terminal member is molded, forms the plastic part of closing terminal hole；
S3. terminal member surface is carried out tin plating；
S4. injection molding carrier cover member, which, which is equipped with, can separate the locating slot for installing several terminal members,
It is equipped in the locating slot and is through to the positive connecting groove of carrier cover member and separation positioning bar；
S5. several terminal members and carrier cover member are assembled, the terminal member in locating slot, wear by the terminal portions
It crosses connecting groove and extends to carrier cover member front；
S6. integral molded plastic is carried out to the sub-assembly after terminal member and the assembling of carrier cover member, injection molding forms coated carrier cover member
The shell at the back side, the shell and carrier cover member form insulated wire frame body.
By adopting the above technical scheme, by the process program of fission molding, assembling, injection molding, the carrier end of setting is utilized
Installation is fixed to terminal member first in cover piece, the clearance distance between each terminal member is controlled by locating slot, simultaneously
The limitation of locating slot, avoid terminal member bending springback, into mold injection when position play, coating and mold scrape etc. it is unfavorable
Situation.
Wherein injection molding of the step S2 to terminal hole is prevented in step S6 by closing the moulding of terminal hole to carrier end
When the integral molded plastic shell of the cover piece back side, let out by the injection molding material that reverse side is injected via locating slot-connecting groove-terminal hole path
Dew.
The further setting of the present invention: stamping forming terminal member in the step S1, the terminal member connection strap bending shape
At major diameter section and path section；
The terminal member is divided into terminal member A and the major diameter section end of terminal member B, the terminal member A are equipped with long terminal portions, path
Section end, which is equipped with, is shorted thread end, and the major diameter section end of the terminal member B, which is equipped with, is shorted thread end, and path section end is equipped with length and connects
Thread end；
In the step S5 include a two terminal member A and terminal member B, three terminal members according to A-A-B sequence, each other it
Between coaxially linking setting the path in front end component is located at by the major diameter section in rear end component and each other there are gap
Section radial outside forms annulus in locating slot.
By adopting the above technical scheme, it is arranged by the structure of two terminal member A and a terminal member B, arrangement, so that terminal
If part extends to the positive a stem grafting thread end of carrier cover member, form that three long terminal portions are adjacent, three short circuit thread ends
Adjacent symmetric arrays structure, it is corresponding with symmetrical three phase mains, facilitate client to identify and be coupled.
The further setting of the present invention: the embryo material of stamped terminals part is yellow gold, the yellow gold in the step S1
Silver content be 0.08%.
By adopting the above technical scheme, by yellow gold, terminal electric conductivity is improved.
The further setting of the present invention: the step S2 completes the packing stage of plastic part in terminal hole Shooting Technique
Afterwards, cooling stage is skipped over, subsequent die sinking, demoulding process are directly carried out.
By adopting the above technical scheme, the injection molding process process of traditional plastic mainly includes molding---- filling ---
(gas is auxiliary, and water is auxiliary) pressure maintaining --- 6 stages such as cooling --- die sinking --- demoulding.Wherein cooling stage is because of moulding plastics
Product is only cooled and solidified to certain rigidity, is just avoided that plastic products are deformed due to by external force after demoulding.
And the moulding at terminal hole of the present invention, its purpose is that closing terminal hole.In packing stage, plastics receive mold wall
Cooling, melt viscosity increases, and just has been provided with certain shapes and encloses terminal hole.The cooling and solidifying stage is skipped, although temporarily
Rigidity is sacrificed, but has no effect on the effect of moulding.And importantly, product of the invention will also carry out subsequent step S6
Integral molded plastic, at this moment, be in soft state terminal hole plastic part, instead be conducive to shell be molded when formed condense so that
S2 injection molding is combined with S6 injection molding entirety.
The further setting of the present invention: the insulation coil holder Split injection moulding process further includes the whole thorn of step S7. product.
The further setting of the present invention: a kind of insulation coil holder, it is characterised in that: including carrier cover member, several terminals
Part and shell, the terminal member include ring-like connection strap and the terminal portions for being set to two ends of connection strap, the wiring
End is equipped with the crotch towards connection strap radial outside, and the terminal hole through terminal portions；The carrier cover member includes front
And the back side, the back side are equipped with the locating slot for installing several terminal members, are equipped in the locating slot and are being through to carrier cover member just
The connecting groove and separation positioning bar in face；For several described terminal members in locating slot, the terminal portions pass through connecting groove
Extend to carrier cover member front；The shell coated carrier cover member back side, the shell are equipped with wrapping post.
The further setting of the present invention: including a two terminal member A and terminal member B including several terminal members, described
The connection strap of terminal member A and terminal member B include major diameter section and path section；
The major diameter section end of the terminal member A is equipped with long terminal portions, and path section end, which is equipped with, is shorted thread end, the terminal member
The major diameter section end of B, which is equipped with, is shorted thread end, and path section end is equipped with long terminal portions；
The terminal member is according to A-A-B sequence, coaxial linking setting each other, and there are gaps each other, by rear end
The major diameter section of component is located at the path section radial outside in front end component, forms annulus in locating slot.
Detailed description of the invention
Fig. 1 is the process flow diagram of the embodiment of the present invention；
Fig. 2 is the structure chart 1 of the embodiment of the present invention；
Fig. 3 is the explosive view 1 of the embodiment of the present invention；
Fig. 4 is the explosive view 2 of the embodiment of the present invention；
Fig. 5 is the structure chart 2 of the embodiment of the present invention；
Fig. 6 is the explosive view 3 of the embodiment of the present invention；
Fig. 7 is the terminal member structure chart of the embodiment of the present invention.
Specific embodiment
As shown in Figs. 1-5, a kind of insulation coil holder Split injection moulding process, comprising the following steps: S1. punch forming terminal
Part, the terminal member include ring-like connection strap 31 and the terminal portions for being set to 31 two ends of connection strap, the terminal portions
Terminal hole 33 is formed by equipped with the crotch 32 and the punching press crotch 32 with packet paint wire bonding；
S2. the terminal hole of terminal member 33 is molded, forms the plastic part 34 of closing terminal hole 33；
S3. terminal member surface is carried out tin plating；
S4. injection molding carrier cover member 1, which, which is equipped with to separate, installs determining for several terminal members
Position slot 13, the locating slot 13 is interior to be equipped with the connecting groove 14 for being through to 1 front 11 of carrier cover member and separates positioning bar 15；
S5. several terminal members and carrier cover member 1 are assembled, the terminal member is in locating slot 13, the terminals
Portion passes through connecting groove 14 and extends to 1 front 11 of carrier cover member；
S6. the sub-assembly after assembling to terminal member and carrier cover member 1 carries out integral molded plastic, and injection molding forms coated carrier cover member
The shell 2 at 1 back side 12, the shell 2 and carrier cover member 1 form insulated wire frame body.
By the process program of fission molding, assembling, injection molding, using the carrier cover member 1 of setting, first to terminal member
Installation is fixed, the clearance distance between each terminal member is controlled by locating slot 13, while the limitation of locating slot 13,
Avoid terminal member bending springback, into mold injection when position play, coating and mold the rough sledding such as scrape.
Wherein injection molding of the step S2 to terminal hole 33 is prevented in step S6 by closing the moulding of terminal hole 33 to load
When 1 back side of body end cover piece, 12 integral molded plastic shell 2, the injection molding material injected by 12 side of the back side is via locating slot 13- connecting groove 14-
It reveals in the path of terminal hole 33.
Stamping forming terminal member in the step S1,31 bending of terminal member connection strap form major diameter section 311 and path
Section 312；
The terminal member is divided into terminal member A7 and 311 end of major diameter section of terminal member B8, the terminal member A7 are equipped with long terminals
Portion 35,312 end of path section, which is equipped with, is shorted thread end 36, and 311 end of major diameter section of the terminal member B8, which is equipped with, is shorted thread end
36,312 end of path section is equipped with long terminal portions 35；
That in the step S5 includes a two terminal member A7 and terminal member B8, and three terminal members are according to A-A-B sequence, each other
Between coaxially linking setting be located in front end component by the major diameter section 311 in rear end component and each other there are gap
312 radial outside of path section forms annulus in locating slot 13.
By the structure of two terminal member A7 and a terminal member B8, arrangement setting, so that terminal member extends to carrier end
If a stem grafting thread end in 1 front 11 of cover piece, pair that three long terminal portions 35 are adjacent, three short circuit thread ends 36 are adjacent is formed
Claim arrangement architecture, it is corresponding with symmetrical three phase mains, facilitate client to identify and be coupled.
The embryo material of stamped terminals part is yellow gold in the step S1, and the silver content of the yellow gold is 0.08%.
By yellow gold, terminal electric conductivity is improved.
The step S2 after the packing stage for completing plastic part 34, skips over cooling rank in 33 Shooting Technique of terminal hole
Section directly carries out subsequent die sinking, demoulding process.
The injection molding process process of traditional plastic mainly includes that molding---- filling --- (gas is auxiliary, and water is auxiliary) protects
Pressure --- 6 stages such as cooling --- die sinking --- demoulding.Wherein cooling stage is because moulded plastic products are only cooling solid
Change to certain rigidity, is just avoided that plastic products are deformed due to by external force after demoulding.
And the moulding at terminal hole 33 of the present invention, its purpose is that closing terminal hole 33.In packing stage, plastics receive mould
It is cooling to have wall, melt viscosity increases, and just has been provided with certain shapes and encloses terminal hole 33.The cooling and solidifying stage is skipped, though
Rigidity is temporarily so sacrificed, but has no effect on the effect of moulding.And importantly, product of the invention also to carry out it is subsequent
The integral molded plastic of step S6 is in soft 33 plastic part 34 of state terminal hole at this moment, shape when being conducive to be molded with shell 2 instead
At condensation, so that S2 injection molding is combined with S6 injection molding entirety.
The insulation coil holder Split injection moulding process further includes the whole thorn of step S7. product.
A kind of insulation coil holder, including carrier cover member 1, several terminal members and shell 2, the terminal member include ring-like
Connection strap 31 and the terminal portions for being set to 31 two ends of connection strap, the terminal portions are equipped with towards 31 radial outside of connection strap
Crotch 32, and the terminal hole 33 through terminal portions；The carrier cover member 1 includes front 11 and the back side 12, the back side 12
Equipped with the locating slot 13 for installing several terminal members, it is equipped in the locating slot 13 and is through to connecing for 1 front 11 of carrier cover member
Wire casing 14 and separation positioning bar 15；For several described terminal members in locating slot 13, the terminal portions pass through connecting groove
14 extend to 1 front 11 of carrier cover member；2 coated carrier cover member of shell, 1 back side 12, the shell 2 are equipped with wrapping post
21。
It include two terminal member A7 and terminal member a B8, the terminal member A7 and terminal member B8 including several terminal members
Connection strap 31 include major diameter section 311 and path section 312；
311 end of major diameter section of the terminal member A7 is equipped with long terminal portions 35, and 312 end of path section, which is equipped with, is shorted thread end
311 end of major diameter section of 36, the terminal member B8, which are equipped with, is shorted thread end 36, and 312 end of path section is equipped with long terminal portions 35；
The terminal member is according to A-A-B sequence, coaxial linking setting each other, and there are gaps each other, by rear end
The major diameter section 311 of component is located at 312 radial outside of path section in front end component, forms annulus in locating slot 13.
Claims (7)
1. a kind of insulation coil holder Split injection moulding process, it is characterised in that: the following steps are included: S1. punch forming terminal member,
The terminal member includes ring-like connection strap and the terminal portions for being set to two ends of connection strap, and the terminal portions are equipped with and packet
The crotch and the punching press crotch for painting wire bonding are formed by terminal hole；
S2. the terminal hole of terminal member is molded, forms the plastic part of closing terminal hole；
S3. terminal member surface is carried out tin plating；
S4. injection molding carrier cover member, which, which is equipped with, can separate the locating slot for installing several terminal members,
It is equipped in the locating slot and is through to the positive connecting groove of carrier cover member and separation positioning bar；
S5. several terminal members and carrier cover member are assembled, the terminal member in locating slot, wear by the terminal portions
It crosses connecting groove and extends to carrier cover member front；
S6. integral molded plastic is carried out to the sub-assembly after terminal member and the assembling of carrier cover member, injection molding forms coated carrier cover member
The shell at the back side, the shell and carrier cover member form insulated wire frame body.
2. a kind of insulation coil holder Split injection moulding process according to claim 1, it is characterised in that: in the step S1
Stamping forming terminal member, the terminal member connection strap bending form major diameter section and path section；
The terminal member is divided into terminal member A and the major diameter section end of terminal member B, the terminal member A are equipped with long terminal portions, path
Section end, which is equipped with, is shorted thread end, and the major diameter section end of the terminal member B, which is equipped with, is shorted thread end, and path section end is equipped with length and connects
Thread end；
In the step S5 include a two terminal member A and terminal member B, three terminal members according to A-A-B sequence, each other it
Between coaxially linking setting the path in front end component is located at by the major diameter section in rear end component and each other there are gap
Section radial outside forms annulus in locating slot.
3. a kind of insulation coil holder Split injection moulding process according to claim 1, it is characterised in that: in the step S1
The embryo material of stamped terminals part is yellow gold, and the silver content of the yellow gold is 0.08%.
4. a kind of insulation coil holder Split injection moulding process according to claim 1, it is characterised in that: the step S2
To in terminal hole Shooting Technique, after the packing stage for completing plastic part, cooling stage is skipped over, subsequent die sinking is directly carried out, takes off
Mould process.
5. a kind of insulation coil holder Split injection moulding process according to claim 1, it is characterised in that: the insulation coil holder
Split injection moulding process further includes the whole thorn of step S7. product.
6. a kind of insulation coil holder, it is characterised in that: including carrier cover member, several terminal members and shell, the terminal member packet
The terminal portions for including ring-like connection strap and being set to two ends of connection strap, the terminal portions are equipped with outside towards connection strap diameter
The crotch of side, and the terminal hole through terminal portions；The carrier cover member includes front and the back side, if the back side is equipped with installation
The locating slot of dry terminal member, interior be equipped with of the locating slot are through to the positive connecting groove of carrier cover member and separation positioning bar；
In locating slot, the terminal portions pass through connecting groove and extend to carrier cover member front several described terminal members；Institute
The shell coated carrier cover member back side is stated, which is equipped with wrapping post.
7. a kind of insulation coil holder according to claim 6, it is characterised in that: include two terminals including several terminal members
The connection strap of part A and terminal member a B, the terminal member A and terminal member B include major diameter section and path section；
The major diameter section end of the terminal member A is equipped with long terminal portions, and path section end, which is equipped with, is shorted thread end, the terminal member
The major diameter section end of B, which is equipped with, is shorted thread end, and path section end is equipped with long terminal portions；
The terminal member is according to A-A-B sequence, coaxial linking setting each other, and there are gaps each other, by rear end
The major diameter section of component is located at the path section radial outside in front end component, forms annulus in locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910268475.1A CN110126181B (en) | 2019-04-04 | 2019-04-04 | Insulating wire frame and split injection molding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910268475.1A CN110126181B (en) | 2019-04-04 | 2019-04-04 | Insulating wire frame and split injection molding process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110126181A true CN110126181A (en) | 2019-08-16 |
| CN110126181B CN110126181B (en) | 2021-03-02 |
Family
ID=67569306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910268475.1A Active CN110126181B (en) | 2019-04-04 | 2019-04-04 | Insulating wire frame and split injection molding process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110126181B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717273A (en) * | 1996-02-28 | 1998-02-10 | Onan Corporation | Insulating armature end turn cap |
| DE10232281A1 (en) * | 2002-07-16 | 2004-02-12 | Phoenix Contact Gmbh & Co. Kg | Electrical connection arrangement for connecting cable to external rotor motor's stator winding ends has plug strip contacts, conducting pieces, connecting elements in form of lead frame |
| CN107257173A (en) * | 2017-07-25 | 2017-10-17 | 广东美的环境电器制造有限公司 | Stator part, motor stator and motor for the motor stator of concentratred winding |
| CN107370273A (en) * | 2017-07-28 | 2017-11-21 | 广东威灵电机制造有限公司 | Mode of connection for the wiring mounting bracket assembly of motor, motor and motor |
| CN107623396A (en) * | 2010-11-05 | 2018-01-23 | Lg伊诺特有限公司 | The bus of electric power-aid steering electric machine |
| CN207010436U (en) * | 2017-04-27 | 2018-02-13 | 广东威灵电机制造有限公司 | Termination and motor |
| CN207234566U (en) * | 2017-09-04 | 2018-04-13 | 中山市富加电器制品有限公司 | A kind of modularity stator wire frame |
| WO2018105595A1 (en) * | 2016-12-05 | 2018-06-14 | Nidec Corporation | A busbar unit for a stator of an electric motor |
-
2019
- 2019-04-04 CN CN201910268475.1A patent/CN110126181B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717273A (en) * | 1996-02-28 | 1998-02-10 | Onan Corporation | Insulating armature end turn cap |
| DE10232281A1 (en) * | 2002-07-16 | 2004-02-12 | Phoenix Contact Gmbh & Co. Kg | Electrical connection arrangement for connecting cable to external rotor motor's stator winding ends has plug strip contacts, conducting pieces, connecting elements in form of lead frame |
| CN107623396A (en) * | 2010-11-05 | 2018-01-23 | Lg伊诺特有限公司 | The bus of electric power-aid steering electric machine |
| WO2018105595A1 (en) * | 2016-12-05 | 2018-06-14 | Nidec Corporation | A busbar unit for a stator of an electric motor |
| CN207010436U (en) * | 2017-04-27 | 2018-02-13 | 广东威灵电机制造有限公司 | Termination and motor |
| CN107257173A (en) * | 2017-07-25 | 2017-10-17 | 广东美的环境电器制造有限公司 | Stator part, motor stator and motor for the motor stator of concentratred winding |
| CN107370273A (en) * | 2017-07-28 | 2017-11-21 | 广东威灵电机制造有限公司 | Mode of connection for the wiring mounting bracket assembly of motor, motor and motor |
| CN207234566U (en) * | 2017-09-04 | 2018-04-13 | 中山市富加电器制品有限公司 | A kind of modularity stator wire frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110126181B (en) | 2021-03-02 |
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