CN108831673A - Electromagnetic coil - Google Patents
Electromagnetic coil Download PDFInfo
- Publication number
- CN108831673A CN108831673A CN201810582761.0A CN201810582761A CN108831673A CN 108831673 A CN108831673 A CN 108831673A CN 201810582761 A CN201810582761 A CN 201810582761A CN 108831673 A CN108831673 A CN 108831673A
- Authority
- CN
- China
- Prior art keywords
- interconnecting piece
- circuit board
- electromagnetic coil
- contact pin
- fastener
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
Abstract
The invention discloses a kind of electromagnetic coils, including：Coil injection molding part, the side of the coil injection molding part are equipped with the interconnecting piece for connecting cable and contact pin, the contact pin be it is multiple and it is spaced apart be plugged on the interconnecting piece, at least part of the contact pin stretches out the outer surface of the interconnecting piece；Fastener, the fastener are located on the interconnecting piece, and the fastener is equipped with the clamping portion that setting is spaced apart with the outer surface of the interconnecting piece；Circuit board, the circuit board are connected with the clamping portion and are spaced apart with the outer surface of the interconnecting piece, and the circuit board is equipped with pin holes corresponding with the contact pin, and the contact pin is plugged in the pin holes.The electromagnetic coil can realize positioning and be fixed to circuit board, have many advantages, such as that assembly is easy, high-efficient, and when subsequent liquid resin is encapsulated and filled, gas energy is smooth to be run out of, and reduce the bubble in resin-encapsulated portion, improve the insulation performance and electrical strength of encapsulation part.
Description
Technical field
The present invention relates to a kind of electromagnetic coils.
Background technique
Existing electromagnetic coil includes coil injection molding part, cable portion and housing, and coil injection molding part is by bobbin, bobbin
Winding, the contact pin for connecting winding ends and the encapsulating portion carried out to bobbin and winding and contact pin are constituted.In coil moulding
Side is equipped with interconnecting piece, and interconnecting piece is equipped with baseplane and positioning surface, is respectively provided with outwardly extending column in baseplane two sides,
The top of column is equipped with a lug boss in opposite directions, and cable portion is made of circuit board and lead, and the thread end of lead is inserted into circuit
In the receiving hole of plate, and the conducting wire figure of circuit board is welded by scolding tin；Pin holes are additionally provided on circuit board, in circuit board
It is correspondingly provided with the groove that the lug boss on the top of two columns on corresponding moulding matches, contact pin is inserted into the pin holes of circuit board
Until circuit board and positioning face contact are motionless, at this point, lug boss is fastened at circuit board recess and positions and fixed, make circuit board with
The position of contact pin will not change, and then be welded the conducting wire figure of contact pin and circuit board with automatic soldering.Then, housing cover
It is buckled on the baseplane of interconnecting piece, is connect housing with coil injection molding part by ultrasonic bonding.Finally, surrounded in interconnecting piece
Inner space casting resin forms resin-encapsulated portion, and circuit board, contact pin and column are covered by resin-encapsulated portion, close with the external world
Envelope insulation.However, in the electromagnetic coil of above structure, since wiring board and positioning surface are in close contact, wiring board and positioning surface it
Between form many small air gaps, in the encapsulation of subsequent liquid resin, air is difficult to run out of from small air gap, is easy air enclosing gas
In gap, hole or bubble are formed, the insulation resistance waited between contact pin and electrical strength is reduced, finished product disqualification rate is caused to rise.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, the present invention proposes a kind of electromagnetic coil, the circuit board and coil injection molding part in cable in the electromagnetic coil
In contact pin installation after, positioning and fixed not only is realized to circuit board, can then be welded with automatic soldering, and can be to subsequent company
The inner space casting resin that socket part surrounds reduces bubble to form resin-encapsulated portion, improves insulation performance and electrical strength.
Electromagnetic coil according to an embodiment of the present invention, including：Coil injection molding part, the side of the coil injection molding part, which is equipped with, to be used
In the interconnecting piece of connecting cable and contact pin, the contact pin be it is multiple and it is spaced apart be plugged on the interconnecting piece, the contact pin
At least part stretches out the outer surface of the interconnecting piece；Fastener, the fastener are located on the interconnecting piece, the fastener
It is equipped with the clamping portion that setting is spaced apart with the outer surface of the interconnecting piece；Circuit board, the circuit board and the clamping portion phase
It is spaced apart even and with the outer surface of the interconnecting piece, the circuit board is equipped with pin holes corresponding with the contact pin, described to insert
Needle is plugged in the pin holes.
Electricity not only may be implemented by matching clamping portion with circuit board in electromagnetic coil according to an embodiment of the present invention
Installation between road plate and contact pin, moreover it is possible to which the positioning and fixation for realizing circuit board are completed installation in circuit board and contact pin and positioned, admittedly
After fixed, there is gap between circuit board and the outer surface of interconnecting piece, when carrying out the encapsulation of subsequent liquid resin, what gas can be smooth
It runs out of, there is assembly to be easy, it is high-efficient, resin-encapsulated portion bubble is reduced, the insulation performance and electrical strength of encapsulation part are improved
The advantages that.
According to an embodiment of the present invention, the outer surface of the interconnecting piece is formed as plane, the circuit board and the company
The outer surface of socket part is arranged in parallel.
According to an embodiment of the present invention, the fastener is formed as two columns being oppositely arranged, each column
One end of shape body is connected with the interconnecting piece, and the other end of two columns is respectively equipped with the clamping being oppositely arranged
Portion.
According to an embodiment of the present invention, the section of the column is formed as rectangle, and the clamping portion is formed as being located at
Groove in the long side of the column, the circuit board are connected with groove clamping.
According to an embodiment of the present invention, the groove type becomes V-shaped.
According to an embodiment of the present invention, the bottom surface of the groove is formed as plane.
According to an embodiment of the present invention, two columns are arranged in a staggered manner in the axial direction of the coil injection molding part.
According to an embodiment of the present invention, the junction between the column and the interconnecting piece is equipped with arc transition
Face.
According to an embodiment of the present invention, side opposite on the other end of two columns, which is respectively equipped with, leans outward
The guiding surface tiltedly extended.
According to an embodiment of the present invention, position corresponding with the clamping portion is equipped with card interface on the circuit board,
The card interface grafting is in the groove.
According to an embodiment of the present invention, the fastener and the coil injection molding part are integrally formed.
According to an embodiment of the present invention, the gap between the circuit board and the outer surface of the interconnecting piece passes through resin
Encapsulation covering.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the main view of electromagnetic coil according to an embodiment of the present invention；
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is Fig. 1 from the partial enlarged view of the interconnecting piece in the direction arrow R1；
Fig. 4 is Fig. 1 from the partial enlarged view of the interconnecting piece in the direction arrow R2；
Fig. 5 is the top view of the cable of electromagnetic coil according to an embodiment of the present invention；
Fig. 6 is the coil injection molding part of electromagnetic coil according to an embodiment of the present invention and the assembling exploded perspective view of cable；
Fig. 7 is the coil injection molding part of electromagnetic coil according to an embodiment of the present invention and the assembling stereogram of cable；
Fig. 8 is the sectional view of electromagnetic coil according to an embodiment of the present invention；
Fig. 9 is schematic diagram of the Fig. 8 from the direction arrow D.
Appended drawing reference：
Electromagnetic coil 100；
Coil injection molding part 10；Bobbin 11；Winding 12；Stator casing 13；Pole pawl 14；Encapsulating portion 15；Welding surface 16；
Contact pin 20；Interconnecting piece 30；
Fastener 40；Clamping portion 41；Guiding surface 42；Arc-shaped transitional surface 43；
Circuit board 50；Card interface 51；Pin holes 52；
Cable 60；Lead 61；
The cover 70；Resin-encapsulated portion 80.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below with reference to the accompanying drawings electromagnetic coil 100 according to an embodiment of the present invention is specifically described.
As shown in Figures 1 to 9, electromagnetic coil 100 according to an embodiment of the present invention includes coil injection molding part 10, fastener 40
With circuit board 50.
Specifically, the side of coil injection molding part 10 is equipped with the interconnecting piece 30 for connecting cable 60 and contact pin 20, contact pin
20 for it is multiple and it is spaced apart be plugged on interconnecting piece 30, at least part of contact pin 20 stretches out the outer surface of interconnecting piece 30, engaging
Part 40 is located on interconnecting piece 30, and fastener 40 is equipped with the clamping portion 41 that setting is spaced apart with the outer surface of interconnecting piece 30, circuit
Plate 50 is connected with clamping portion 41 and is spaced apart with the outer surface of interconnecting piece 30, and circuit board 50 is equipped with contact pin corresponding with contact pin 20
Hole 52, contact pin 20 are plugged in pin holes 52.
In other words, electromagnetic coil 100 according to an embodiment of the present invention is mainly by coil injection molding part 10, fastener 40 and circuit
Plate 50 forms, and is equipped with interconnecting piece 30 in the side of coil moulding 10, and interconnecting piece 30 can be used for connecting cable 60 and contact pin 20,
One end of the contact pin 20 of multiple distributions spaced apart is pluggable on interconnecting piece 30, the extended interconnecting piece 30 of the other end of contact pin 20
Outer surface can be equipped with fastener 40 on interconnecting piece 30, clamping portion 41 is equipped on fastener 40, clamping portion 41 can be used for connecting
Circuit board 50, it should be noted that clamping portion 41 is spaced apart setting, circuit board 50 and interconnecting piece 30 with the outer surface of interconnecting piece 30
Outer surface be also spaced apart, on circuit board 50 be equipped with pin holes 52, pin holes 52 can be corresponding with contact pin 20, that is,
It says, the other end of contact pin 20 can be plugged in pin holes 52.
Electromagnetic coil 100 according to an embodiment of the present invention is using coil injection molding part 10, fastener 40 and circuit board 50 as a result,
The device combined is matched using the clamping portion 41 on interconnecting piece 30 with circuit board 50, and 50 He of circuit board not only may be implemented
Installation between contact pin 20, moreover it is possible to the positioning and fixation for realizing circuit board 50, circuit board 50 and contact pin 20 complete installation positioning,
After fixation, there is gap, circuit board 50 is in " high up in the air " state, after progress between circuit board 50 and the outer surface of interconnecting piece 30
When continuous liquid resin encapsulation, gas smooth can be run out of, and there is assembly to be easy, high-efficient, reduced 80 bubble of resin-encapsulated portion, mentioned
The advantages that high insulation performance and electrical strength of encapsulation part.
It should be noted that coil injection molding part 10 may include bobbin 11, the winding 12 on bobbin 11, connection around
Contact pin 20, stator casing 13 and the pole pawl 14 of 12 ends of group, and to bobbin 11 and winding 12, stator casing 13, pole pawl 14
The encapsulating portion 15 encapsulated with contact pin 20, encapsulating portion 15 can be formed by synthetic resin, and fastener 40 can be with 15 one of encapsulating portion
Molding is equipped with the interconnecting piece 30 connecting with cable 60 on 15 side of packing department of coil moulding 10, and welding surface 16, which is located at, to be connected
30 side of socket part, as shown in figure 5, cable 60 can be made of circuit board 50 and lead 61, the thread end of lead 61 is inserted into circuit
In the receiving hole of plate 40, and the conducting wire figure of circuit board 50 is welded by soldering.
According to one embodiment of present invention, the outer surface of interconnecting piece 30 is formed as plane, circuit board 50 and interconnecting piece
30 outer surface is arranged in parallel, and saves installation space, guarantees that the gap between circuit board 50 and the outer surface of interconnecting piece 30 is big, just
Gas is run out of when subsequent resin-encapsulated.
In some specific embodiments of invention, fastener 40 is formed as two columns being oppositely arranged, each
One end of column can be connected with interconnecting piece 30, and the other end of two columns can be respectively equipped with the clamping portion 41 being oppositely arranged,
Circuit board 50 can be connected and fixed with clamping portion 41.
Further, the section of column is formed as rectangle, and clamping portion 41 is formed as being located in the long side of column
Groove, circuit board 50 can with groove be clamped be connected, installation easy to disassemble, assembly efficiency height, production easy to process.
Optionally, groove is formed as V-shaped, and assembly is easy.
Further, the bottom surface of groove is formed as plane, is capable of fixing with certain thickness circuit board 50, groove
Side can prevent the circuit board 50 after assembly from deviating from, and the position of groove can limit the circuit board 50 and interconnecting piece 30 after assembly
The distance between outer surface.
According to one embodiment of present invention, two columns can be to be arranged in a staggered manner in the axial direction of coil moulding 10,
Multiple contact pins 20 can be formed as two rows of, and in order to improve the distance between successive pins 20, two rows of contact pins 20 can be arranged in a staggered manner,
Two columns are arranged in a staggered manner, and the space length between column and successive pins 20 can be improved.
In some specific embodiments of invention, the junction between column and interconnecting piece 30 can be equipped with arc transition
Face 43 can increase the linking intensity between column and the outer surface of interconnecting piece 30.
According to one embodiment of present invention, side opposite on the other end of two columns, which is respectively equipped with, is inclined outwardly
The guiding surface 42 of extension can guide circuit board 50 to be smoothly packed into when being installed with contact pin 20.
In some specific embodiments of invention, position corresponding with clamping portion 41 is equipped with card interface on circuit board 50
51, card interface 51 is plugged in groove, and when circuit board 50 and contact pin 20 are installed, card interface 51 can be connected in groove, not only
The fixation of circuit board 50 may be implemented, and circuit board 50 can also be prevented to be detached from out of groove due to gravity factor etc.,
Contact pin 20 and circuit board 50 after the assembly is completed, can be welded to connect, soldering by circuit board 50 and contact pin 20 using automatic soldering
Point can be welded with automatic soldering, it is ensured that outside quality of welding spot.
Optionally, fastener 40 can be integrally formed with coil injection molding part 10, production easy to process, reduce production cost.
According to one embodiment of present invention, the gap between circuit board 50 and the outer surface of interconnecting piece 30 is sealed by resin
Dress covering, that is to say, that the inner space casting resin that housing and interconnecting piece 30 surround can form resin-encapsulated portion 80, circuit
Plate 50, contact pin 20 and column are covered by resin-encapsulated portion 80, with extraneous sealed insulation.
The assembling process and assembly features of electromagnetic coil 100 according to an embodiment of the present invention is detailed below.
Firstly, as shown in Figure 6 and Figure 7, connecting circuit board 50 with clamping portion 41, at this time the contact pin on coil injection molding part 10
20 pin holes 52 being just automatically aligned on circuit board 50 simultaneously are completed to install, and card interface 51 withholds circuit board 50, to circuit board 50
Positioning and fixation are realized, change circuit board 50 and the position of contact pin 20 will not；Then, tin is passed through using automatic soldering etc.
The conducting wire figure of contact pin 20 and circuit board 50 is welded in weldering；Then, as shown in Figure 8 and Figure 9, the cover 70 is loaded onto cover circuit
Plate 50 and column, the cover 70 passes through ultrasonic bonding connection by welding surface 16 and coil injection molding part 10, finally in the cover 70
Internal filling liquid shape potting resin forms resin-encapsulated portion 80 after resin solidification, completes between circuit board 50 and contact pin 20
After installation positions, is fixed, circuit board 50 is only connect with clamping portion 41, and circuit board 50 is in " high up in the air " state, in subsequent liquid tree
When rouge encapsulation filling, what gas can be smooth be run out of, and reduce the bubble in resin-encapsulated portion 80, improve the insulation performance of encapsulation part with
Electrical strength.
When circuit board 50 to be connect with clamping portion 41, clamping portion 41 is formed as groove, on circuit board 50 be equipped with it is recessed
The corresponding card interface 51 of slot, as long as card interface 51 is pressed into positive clamping portion 41, the insertion of 20 automatic alignment pin holes 52 of contact pin
Complete installation, have many advantages, such as that assembly is easy, it is high-efficient, positioning and fixed can be realized to circuit board 50, make circuit board 50 and
The position of contact pin 20 will not change, and can weld circuit board 50 and contact pin 40 using automatic soldering, can guarantee solder joint matter
Amount.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (12)
1. a kind of electromagnetic coil, which is characterized in that including：
Coil injection molding part, the side of the coil injection molding part are equipped with the interconnecting piece for connecting cable and contact pin, and the contact pin is
It is multiple and it is spaced apart be plugged on the interconnecting piece, at least part of the contact pin stretches out the outer surface of the interconnecting piece；
Fastener, the fastener are located on the interconnecting piece, and the fastener is equipped between the outer surface of the interconnecting piece
The clamping portion being spaced apart；
Circuit board, the circuit board are connected and are spaced apart with the outer surface of the interconnecting piece, the circuit board with the clamping portion
Pin holes corresponding with the contact pin are equipped with, the contact pin is plugged in the pin holes.
2. electromagnetic coil according to claim 1, which is characterized in that the outer surface of the interconnecting piece is formed as plane, institute
The outer surface for stating circuit board and the interconnecting piece is arranged in parallel.
3. electromagnetic coil according to claim 1, which is characterized in that the fastener is formed as two columns being oppositely arranged
One end of shape body, each column is connected with the interconnecting piece, and the other end of two columns is respectively equipped with relatively
The clamping portion being arranged.
4. electromagnetic coil according to claim 3, which is characterized in that the section of the column is formed as rectangle, described
Clamping portion is formed as being located at the groove in the long side of the column, and the circuit board is connected with groove clamping.
5. electromagnetic coil according to claim 4, which is characterized in that the groove type becomes V-shaped.
6. electromagnetic coil according to claim 5, which is characterized in that the bottom surface of the groove is formed as plane.
7. electromagnetic coil according to claim 4, which is characterized in that two columns are in the coil injection molding part
It is arranged in a staggered manner in axial direction.
8. electromagnetic coil according to claim 4, which is characterized in that the connection between the column and the interconnecting piece
Place is equipped with arc-shaped transitional surface.
9. electromagnetic coil according to claim 4, which is characterized in that opposite one on the other end of two columns
Side is respectively equipped with the guiding surface for being inclined outwardly extension.
10. electromagnetic coil according to claim 4, which is characterized in that corresponding with the clamping portion on the circuit board
Position be equipped with card interface, the card interface grafting is in the groove.
11. electromagnetic coil according to claim 3, which is characterized in that the fastener and coil injection molding part one
Molding.
12. electromagnetic coil according to claim 1, which is characterized in that the outer surface of the circuit board and the interconnecting piece
Between gap pass through resin-encapsulated cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582761.0A CN108831673A (en) | 2018-06-07 | 2018-06-07 | Electromagnetic coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582761.0A CN108831673A (en) | 2018-06-07 | 2018-06-07 | Electromagnetic coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831673A true CN108831673A (en) | 2018-11-16 |
Family
ID=64143402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810582761.0A Pending CN108831673A (en) | 2018-06-07 | 2018-06-07 | Electromagnetic coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831673A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164583A (en) * | 2020-10-14 | 2021-01-01 | 广州爱磁电子有限公司 | High-frequency transformer winding and processing method thereof |
| CN113517105A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Electronic coil and electronic expansion valve with same |
| WO2023109367A1 (en) * | 2021-12-15 | 2023-06-22 | 浙江盾安人工环境股份有限公司 | Coil assembly and electronic expansion valve comprising same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517105A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Electronic coil and electronic expansion valve with same |
| CN113517105B (en) * | 2020-04-10 | 2023-11-28 | 盾安环境技术有限公司 | Electronic coil and electronic expansion valve with same |
| CN112164583A (en) * | 2020-10-14 | 2021-01-01 | 广州爱磁电子有限公司 | High-frequency transformer winding and processing method thereof |
| WO2023109367A1 (en) * | 2021-12-15 | 2023-06-22 | 浙江盾安人工环境股份有限公司 | Coil assembly and electronic expansion valve comprising same |
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Address after: 213100 Lingcun Industrial Zone No. 8, Luoyang Town, Changzhou City, Jiangsu Province Applicant after: Jiangsu Huayang Intelligent Equipment Co., Ltd. Address before: 213100 Lingcun Industrial Zone No. 8, Luoyang Town, Changzhou City, Jiangsu Province Applicant before: Jiangsu Huayang Electrical Appliances Co., Ltd. |
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