CN209329902U - Its automobile of the wiring construction of motor and electric machine controller and application - Google Patents
Its automobile of the wiring construction of motor and electric machine controller and application Download PDFInfo
- Publication number
- CN209329902U CN209329902U CN201822251147.4U CN201822251147U CN209329902U CN 209329902 U CN209329902 U CN 209329902U CN 201822251147 U CN201822251147 U CN 201822251147U CN 209329902 U CN209329902 U CN 209329902U
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- Prior art keywords
- electric machine
- motor
- copper bar
- machine controller
- bar ontology
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 139
- 229910052802 copper Inorganic materials 0.000 claims abstract description 139
- 239000010949 copper Substances 0.000 claims abstract description 139
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 32
- 238000005336 cracking Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to the installing area of motor and electric machine controller, the wiring construction and application its automobile of a kind of motor and electric machine controller are disclosed.The motor and the copper busbar that the wiring construction of electric machine controller includes: for being electrically connected with electric machine controller；Lead wire for being electrically connected with motor.Wherein, copper busbar includes copper bar ontology and the regulating member that is formed on copper bar ontology, and regulating member is arranged to make between copper bar ontology and lead wire and/or blind-mate between copper bar ontology and the stationary plane being in contact with it.The motor of the utility model and the wiring construction of electric machine controller, which can be avoided, leads to generation the phenomenon that generating mount stress on copper busbar because of installation error.
Description
Technical field
The utility model relates to the installing area more particularly to a kind of motor of motor and electric machine controller and electric machine controllers
Wiring construction and application its automobile.
Background technique
At present in the installing area of motor and electric machine controller, the wiring of the triple line of motor and electric machine controller usually exists
It is carried out in three-phase connection box on electric machine casing.Junction block is installed in three-phase connection box, the copper busbar of electric machine controller with
Motor lead is bolted on junction block to realize being electrically connected for electric machine controller and motor.
However, the mode of connection of existing above-mentioned motor and electric machine controller is often because of the installation position of motor junction block, motor
The installation position of the copper busbar of controller and the installation position of motor lead to the wiring copper of electric machine controller there are installation error
Row can not reach being bonded for zero clearance with the surface of junction block after being fixedly connected with junction block, this results in copper busbar solid
After being scheduled on junction block, inevitably there is the mount stress of distortion in copper busbar.During running car, wiring
Mount stress existing for copper bar long-time, the temperature in terminal box alternately change and the reasons such as vibration, is all easy to cause wiring
There is the risk of cracking in the junction and copper busbar of copper bar and junction block and the junction of electric machine controller, to cause electricity
Machine can not normal use.
In view of the deficiencies of the prior art, those skilled in the art is badly in need of seeking one kind and can be avoided to lead because of installation error
It causes to generate the motor of mount stress and the wiring construction of electric machine controller on copper busbar.
Utility model content
In order to avoid leading to generate mount stress on copper busbar because of mismatch error, the utility model proposes one kind
The wiring construction of motor and electric machine controller.
The wiring construction of motor and electric machine controller according to the present utility model, comprising: for being electrically connected with electric machine controller
The copper busbar connect；Lead wire for being electrically connected with motor.Wherein, copper busbar includes copper bar ontology and is formed in copper bar sheet
Regulating member on body, regulating member is arranged to make between copper bar ontology and lead wire and/or copper bar ontology connects with it
Blind-mate between the stationary plane of touching.
Further, regulating member is arranged to: being fixed on the female thread portion on copper bar ontology, copper bar ontology is consolidated with female thread portion
Fixed region is provided with the first through hole being connected to female thread portion, and the second through-hole is formed on lead wire, and lead wire passes through pin thread portion
It is fixed in female thread portion through the second through-hole and first through hole.
Further, female thread portion is nut, and pin thread portion is bolt.
Further, regulating member is arranged to: a part of copper bar ontology is formed as flexible part.
Further, copper bar ontology includes first end for being connected with electric machine controller, for being connected with lead wire
Second end, flexible part are formed as connecting bending between the first end and a second end.
Further, it is formed with insulating element on the outer surface with the junction of electric machine controller of copper bar ontology, insulated
Reinforcing rib is formed on component.
Further, it is formed with the insulation board being connected with insulating element below copper bar ontology and the junction of lead wire,
The guide groove for guiding and protecting lead wire is formed on insulation board.
The utility model also proposed a kind of automobile, including motor, electric machine controller and for connecting motor and motor
The above-mentioned motor of controller and the wiring construction of electric machine controller.
Further, motor includes electric machine casing and is formed in the intracorporal terminal box of motor casing, the wiring with female thread portion
Copper bar is connected by pin thread portion with lead wire and vacantly in terminal box.
Further, motor includes electric machine casing and is formed in the intracorporal terminal box of motor casing, is fixed with and connects in terminal box
Line seat, copper busbar and lead wire with flexible part are fixed on junction block by fastener.
Compared with prior art, the wiring construction of the motor of the utility model and electric machine controller is installed in copper bar ontology
After fixation, it can be adjusted by regulating member between copper bar ontology and lead wire and/or copper bar ontology and the fixation that is in contact with it
Fit clearance between face (such as in the prior art for fixing the stationary plane of the motor junction block of copper bar ontology and lead wire),
To eliminate the mount stress that copper bar ontology is generated by fit clearance, so as to avoid copper bar ontology and the stationary plane being in contact with it
Junction and copper bar ontology and electric machine controller junction cracking risk, and then make the electricity of electric machine controller and motor
It connects more stable.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is the structural representation according to the first embodiment of the wiring construction of the motor and electric machine controller of the utility model
Figure；
Fig. 2 is the wiring construction of motor shown in FIG. 1 and electric machine controller along the cross-sectional view in the direction A-A；
Fig. 3 is the structural representation according to the second embodiment of the wiring construction of the motor and electric machine controller of the utility model
Figure；
Fig. 4 is the wiring construction of motor shown in Fig. 3 and electric machine controller along the cross-sectional view in the direction B-B.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
Fig. 1-4 shows the structure of the wiring construction 100 of motor and electric machine controller according to the present utility model.Such as Fig. 1
With shown in Fig. 2, the motor and the wiring copper that the wiring construction 100 of electric machine controller includes: for being electrically connected with electric machine controller 4
Row 1；Lead wire 2 for being electrically connected with motor 5.Wherein, copper busbar 1 includes copper bar ontology 11 and is formed in copper bar ontology 11
On regulating member 12 (as shown in Figure 2), regulating member 12 is arranged to make between copper bar ontology 11 and lead wire 2, and/or
Copper bar ontology 11 is with the stationary plane being in contact with it (such as in the prior art for fixing the motor of copper bar ontology 11 and lead wire 2
The stationary plane of junction block) between blind-mate.
The wiring construction 100 of the motor of the utility model and electric machine controller when in use, by fastener by wiring copper
Row 1 and lead wire 2 carry out installation fixation in the terminal box (being not drawn into figure) of motor 5, to realize copper busbar 1 and lead wire
2 electrical connection, to realize being electrically connected for electric machine controller 4 and motor 5.The motor of the utility model and connecing for electric machine controller
Cable architecture 100 makes fastener in fixed copper bar ontology 11 and lead wire by the regulating member 12 formed on copper bar ontology 11
After 2, regulating member 12 can adjust between copper bar ontology 11 and lead wire 2 and/or copper bar ontology 11 and the fixation that is in contact with it
Fit clearance between face.Therefore, even if in the prior art for fixing the motor wiring of copper bar ontology 11 and lead wire 2
Installation position, the installation position for the copper busbar 1 being electrically connected with electric machine controller 4 and the installation of electric machine controller 4 and motor 5 of seat
Position there is installation error in the case where, can also be made by regulating member 12 copper bar ontology 11 completely fitting lead wire 2 and/
Or the stationary plane contacted with copper bar ontology 11 is (such as in the prior art for fixing copper bar ontology 11 and the motor of lead wire 2 connects
The stationary plane of line seat), this just effectively prevents leading to copper bar ontology 11 after fixation because of above-mentioned installation error in the prior art
The mount stress of distortion itself is led to the problem of, so as to avoid in the junction of copper bar ontology 11 and motor junction block, copper bar
It deposits the junction for the stationary plane that ontology 11 occurs with the junction of lead wire 2 and copper bar ontology 11 is contacted with copper bar ontology 11
Cracking risk, and then keep electric machine controller 4 and being electrically connected for motor 5 more stable.
In preferred embodiment as depicted in figs. 1 and 2, regulating member 12 is so arranged that including being fixed on copper bar sheet
The region fixed with female thread portion 13 in the female thread portion 13 (as shown in Figure 2) on body 11, copper bar ontology 11 is provided with and female thread portion 13
The first through hole 14 of connection is formed with the second through-hole 15 on lead wire 2, and lead wire 2 is by pin thread 16 through 15 He of the second through-hole
First through hole 14 is fixed in female thread portion 13.
The installation of copper busbar and lead wire in the prior art often needs to be fixed on the two by using pin thread portion 16
On junction block equipped with female thread portion 13, i.e., the two is fixed on junction block together by the cooperation in pin thread portion and female thread portion.And
Female thread portion 13 is set up directly on copper bar ontology 11 by the utility model, keeps lead wire 2 directly fixed by pin thread portion 16
On copper bar ontology 11, that is, eliminate the setting of junction block.That is, being that of avoiding in the utility model in essence by copper bar sheet
Body 11 and lead wire 2 are fixed on specific stationary plane (such as stationary plane of junction block), but by copper bar ontology 11 and can be drawn
Wiring 2 is attached in arbitrary overhead positions, and avoiding problems cause because of the installation error of junction block in the prior art
Copper bar ontology 11 and junction block there are problems that fit clearance, turned round so as to avoid copper bar ontology 11 because of fit clearance
Song deformation leads to the problem of mount stress.Meanwhile soft lead wire 2 can also occur after fixing with the installation of copper bar ontology 11
The deformation of adaptability, it helps enable copper bar ontology 11 and the gapless cooperation of lead wire 2.Therefore, which can not only
The mount stress for the installation for enough avoiding copper bar ontology 11 from generating, additionally it is possible to keep copper bar ontology 11 and the connection of lead wire 2 more steady
It is fixed and secured.
Preferably, female thread portion 13 may be configured as card convex structure, and pin thread portion 16 may be configured as the card slot cooperated with card convex structure
Structure；It is further preferred that female thread portion 13 may be configured as nut, pin thread portion 16 may be configured as bolt.
In a preferred embodiment, female thread portion 13 is nut, and pin thread portion 16 is bolt.As shown in Figure 2 excellent
In selection of land embodiment, nut can be riveted on copper bar ontology 11.Bolt passes through the second through-hole 15 formed on lead wire 2 and setting
The first through hole 14 and nut being connected on copper bar ontology 11 with nut are fixedly mounted.By the fixed form of nuts and bolt,
It is not only convenient for the connection of the two, also improves the intensity that is electrically connected of the electric machine controller 4 with motor 5.
In preferred embodiment as shown in Figure 3 and Figure 4, regulating member 12 is so arranged that the one of copper bar ontology 11
Part is formed as flexible part 17.By the setting, when copper bar ontology 11 is fixed on a stationary plane, such as installation is solid
Installation position, the copper busbar that is electrically connected with electric machine controller 4 when being scheduled on junction block in the prior art, when motor junction block
There are flexibilities when installation error, formed on copper bar ontology 11 for 1 installation position and the installation position of electric machine controller 4 and motor 5
Portion 17 can occur the deformation of adaptability and generate fit clearance to avoid between copper bar ontology 11 and junction block, to make copper bar sheet
Body 11 can preferably be bonded junction block, and then avoid the installation mount stress that copper bar ontology 11 is generated by fit clearance.
Copper bar ontology 11 without mount stress not only avoids copper bar ontology 11 and the stationary plane (i.e. junction block) that is in contact with it
The risk of the cracking of junction and the junction of copper bar ontology 11 and electric machine controller 4, also improves electric machine controller 4 and motor
The intensity of 5 electrical connection.
In preferred embodiment as shown in Figure 4, copper bar ontology 11 may include for being connected with electric machine controller 4
One end 111, the second end 112 for being connected with lead wire 2, flexible part 17 are formed as being connected to first end 111 and second end
Bending 113 between 112.First end 111 and second end 112 are disposed as hard structure, to strengthen copper bar ontology 11
Bonding strength with electric machine controller 4 and with lead wire 2.And it is formed in the bending between first end 111 and second end 112
113 are preferably set as the soft copper bar of multilayer.Soft copper bar can make bending 113 in the same of the intensity that can guarantee its own
When, additionally it is possible to there is soft characteristic, preferably deformation occurs to enable copper bar ontology 11, to adapt to different fixations
The position of contact surface.
Return to Fig. 1, it is preferable that can be formed on the outer surface with the junction of electric machine controller 4 of copper bar ontology 11 absolutely
Edge part 3 can be formed with reinforcing rib 31 on insulating element 3.Insulating element 3 preferably be and the integrally formed modeling of copper bar ontology 11
Materials and parts.What needs to be explained here is that insulating element 3 is in the case where influencing the connection of copper bar ontology 11 and lead wire 2, it can be big
The package copper bar ontology 11 of area, further to reinforce the intensity of copper bar ontology 11 itself.Preferably, in such as Fig. 1 and Fig. 2 institute
In the preferred embodiment shown, reinforcing rib 31 may be formed at the surface of plastic part, can reinforce copper bar by being provided with reinforcing rib 3
The intensity of ontology 11 is protected so that copper bar ontology 11 is not susceptible to bend or deform when connecting copper bar ontology 11 with lead wire 2
The stability of connection is demonstrate,proved.
In preferred embodiment as shown in Figure 1, copper bar ontology 11 can be formed with the lower of the junction of lead wire 2
The insulation board 6 being connected with insulating element 3 is formed with the guide groove 61 for guiding and protecting lead wire 2 on insulation board 6.Pass through
The setting can not only play the effect of high-voltage safety protection after copper bar ontology 11 and lead wire 2 are fixedly mounted, may be used also
Avoid occurring contact due to bending with terminal box because of copper bar ontology 11 or the bolt because being used to fix lead wire 2 and copper bar ontology 11 compared with
The danger for growing and contacting and leaking electricity with terminal box；Adjacent lead wire 2 can not only be avoided by the way that guide groove 61 is arranged
Contact, to avoid the danger of short circuit, moreover it is possible to improve the aesthetics of wiring.Therefore, the motor and motor of the utility model
The wiring construction 100 of controller can make peace of the copper bar ontology 11 with lead wire 2 after being electrically connected more by the way that insulation board 6 is arranged
It is complete and beautiful.Preferably, the material of insulation board 6 can be plastics.It is further preferred that insulation board 6 can with the one of insulating element 31 at
Type can also be individual part, can also be arranged separately in the bottom of terminal box.It is further preferred that in embodiment as shown in Figure 4
In, it may also set up the structure of above-mentioned insulation board 6, insulation board 6 can also be integrally formed with insulating element 31, can also be individual zero
Part can also be arranged separately on junction block 7, and junction block 7 can also be provided directly as to insulation system, and nut can be embedded in and connect
In line seat 7.
The utility model also proposed a kind of automobile, including motor 5, electric machine controller 4 and for connecting motor 5 and electricity
The above-mentioned motor of machine controller 4 and the wiring construction 100 of electric machine controller.According to above it will be appreciated that, using the electricity of the utility model
The wiring construction 100 of machine and electric machine controller can be avoided existing by the regulating member 12 being formed on copper bar ontology 11
Because of the installation position of motor junction block (being not drawn into figure), the installation position of the copper busbar of electric machine controller 4 and motor 5 in technology
Installation position cause copper busbar that can not reach hair the phenomenon that fitting of zero clearance with the surface of junction block there are installation error
It is raw, so as to avoid copper bar ontology 11 after installation is fixed, copper bar ontology 11 is made to generate mount stress due to there are fit clearance
The problem of.Therefore, using the automobile of the motor of the utility model and the wiring construction 100 of electric machine controller, in the process of traveling
In, it can be avoided the temperature in the prior art because in mount stress existing for copper busbar long-time, terminal box and alternately change
And the junction of the junction and copper busbar and electric machine controller 4 of copper busbar and junction block caused by the reasons such as vibration
The phenomenon that cracking, occurs.
In a preferred embodiment, motor 5 may include electric machine casing (being not drawn into figure) and be formed in motor casing
Intracorporal terminal box (being not drawn into figure), as shown in connection with fig. 2, copper bar ontology 11 and lead wire 2 with female thread portion 13 pass through public affairs
The connection of buckle 16 and vacantly in terminal box.Pass through the setting, after copper bar ontology 11 and the installation of lead wire 2 are fixed, copper bar sheet
Connection can be completed it is not necessary that deformation occurs in body 11, is distorted deformation to further avoid copper bar ontology 11 and generates and install
The phenomenon that stress.According to above it will be appreciated that, which can not only make the stabilization of the connection of copper bar ontology 11 and lead wire 2 more,
Junction block in the prior art can be also saved in terminal box, so that being fixedly connected for copper bar ontology 11 and lead wire 2 is facilitated,
Cost is also ad save simultaneously.
It is preferably carried out in mode at another, motor 5 may include electric machine casing (being not drawn into figure) and be formed in motor
The intracorporal terminal box of shell (being not drawn into figure) is fixed with junction block 7 (as shown in Figure 4) in terminal box, connecing with flexible part 17
Line copper bar 1 and lead wire 2 are fixed on junction block 7 by fastener.According to above it will be appreciated that, by the setting, even if existing
The installation position of the motor junction block for fixing copper bar ontology 11 and lead wire 2 in technology is electrically connected with electric machine controller 4
In the case that the installation position of copper busbar 1 and the installation position of electric machine controller 4 and motor 5 have installation error, this is practical
Novel copper bar ontology 11 also can by the adjustment of flexible part 17, make copper bar ontology 11 completely fitting lead wire 2 and/or with
The stationary plane that copper bar ontology 11 contacts generates mount stress so as to avoid copper bar ontology 11.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Especially, as long as structural conflict is not present, items technical characteristic mentioned in the various embodiments can combine in any way
Get up.The utility model is not limited to specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical solutions.
Claims (10)
1. the wiring construction of a kind of motor and electric machine controller characterized by comprising
Copper busbar for being electrically connected with electric machine controller,
Lead wire for being electrically connected with motor,
Wherein, the copper busbar includes copper bar ontology and the regulating member that is formed on the copper bar ontology, the adjustment portion
Part is arranged to make the stationary plane that between the copper bar ontology and the lead wire and/or the copper bar ontology is in contact with it
Between blind-mate.
2. the wiring construction of motor according to claim 1 and electric machine controller, which is characterized in that the regulating member is set
It is set to: being fixed on the female thread portion on the copper bar ontology, the region fixed with the female thread portion of the copper bar ontology is provided with
The first through hole being connected to the female thread portion is formed with the second through-hole on the lead wire, and the lead wire is passed through by pin thread portion
Second through-hole and the first through hole are fixed in the female thread portion.
3. the wiring construction of motor according to claim 2 and electric machine controller, which is characterized in that the female thread portion is spiral shell
Mother, the pin thread portion are bolt.
4. the wiring construction of motor according to claim 1 and electric machine controller, which is characterized in that the regulating member is set
It is set to: a part of the copper bar ontology is formed as into flexible part.
5. the wiring construction of motor according to claim 4 and electric machine controller, which is characterized in that the copper bar ontology packet
Include the first end for being connected with the electric machine controller, the second end for being connected with the lead wire, the flexible part shape
As the bending being connected between the first end and the second end.
6. the wiring construction of motor according to any one of claim 1 to 5 and electric machine controller, which is characterized in that institute
It states and is formed with insulating element on the outer surface with the junction of electric machine controller of copper bar ontology, be formed on the insulating element
Reinforcing rib.
7. the wiring construction of motor according to claim 6 and electric machine controller, which is characterized in that the copper bar ontology with
It is formed with the insulation board being connected with the insulating element below the junction of the lead wire, is formed on the insulation board useful
In the guide groove for guiding and protecting the lead wire.
8. a kind of automobile characterized by comprising motor, electric machine controller and for connecting the motor and the motor
The wiring construction of the motor and electric machine controller according to any one of claim 1 to 7 of controller.
9. automobile according to claim 8, which is characterized in that the motor includes electric machine casing and is formed in the motor
The intracorporal terminal box of shell, the copper busbar with female thread portion are connected with the lead wire by pin thread portion and vacantly in the wiring
In box.
10. automobile according to claim 8, which is characterized in that the motor includes electric machine casing and is formed in the electricity
Casing intracorporal terminal box is fixed with junction block in the terminal box, and copper busbar and the lead wire with flexible part are logical
Fastener is crossed to be fixed on the junction block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251147.4U CN209329902U (en) | 2018-12-29 | 2018-12-29 | Its automobile of the wiring construction of motor and electric machine controller and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251147.4U CN209329902U (en) | 2018-12-29 | 2018-12-29 | Its automobile of the wiring construction of motor and electric machine controller and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209329902U true CN209329902U (en) | 2019-08-30 |
Family
ID=67729906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822251147.4U Active CN209329902U (en) | 2018-12-29 | 2018-12-29 | Its automobile of the wiring construction of motor and electric machine controller and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209329902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141086A (en) * | 2021-03-17 | 2021-07-20 | 顺科智连技术股份有限公司 | Electric connection structure for electric automobile motor |
-
2018
- 2018-12-29 CN CN201822251147.4U patent/CN209329902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141086A (en) * | 2021-03-17 | 2021-07-20 | 顺科智连技术股份有限公司 | Electric connection structure for electric automobile motor |
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