CN205159133U - Motor direct current switch - Google Patents
Motor direct current switch Download PDFInfo
- Publication number
- CN205159133U CN205159133U CN201520998363.9U CN201520998363U CN205159133U CN 205159133 U CN205159133 U CN 205159133U CN 201520998363 U CN201520998363 U CN 201520998363U CN 205159133 U CN205159133 U CN 205159133U
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- base
- commutation
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- handle
- push rod
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Abstract
The utility model discloses a motor direct current switch, including base and apron, install the circuit board on the apron, install the movable contact subassembly and the stationary contact subassembly of mutually supporting on the base, install the push rod on the base, the resistance trimming shell fragment is installed in the action of pusher movable contact subassembly and stationary contact subassembly intercommunication or disconnection on the push rod, be provided with the resistance trimming golden finger on the circuit board, still is provided with electron reversing mechanism on the base, electron reversing mechanism includes the slider of slidable mounting on the base, be fixed with the switching -over shell fragment on the slider, the switching -over golden finger of shell fragment contact is provided with on the circuit board and commutates, rotate on the base and install switching -over group handle, the switching -over is dialled between handle and the slider transmission and is connected and drives the slider and slide repeatedly, be provided with on the base and dial the handle to the switching -over and carry out the positioning mechanism that fixes a position. This direct current switch's electron reversing mechanism simple structure, the operation is reliable, and the switching -over is quick accurate, and the assembly is simple.
Description
Technical field
The utility model relates to a kind of DC switch, refers to a kind of motor DC switch especially.
Background technology
In the switch industry of motor, electric drill, the switch of the motor of angle grinding machine is all normal by connection, unclamp disconnection, and current DC switch comprises the base and cover plate that interfix, described cover plate is provided with wiring board, base is provided with cooperatively interact dynamic and touches assembly and stationary contact assembly, described base is provided with push rod, described base is run through and exposed in one end of this push rod, back-moving spring is provided with between the other end and base, described push rod drives dynamic tactile assembly action be communicated with stationary contact assembly or disconnect, described push rod is provided with resistance trimming shell fragment, position corresponding on described wiring board is provided with the resistance trimming golden finger be slidably matched with described resistance trimming shell fragment, described base is also provided with electronic commutation mechanism, electronic commutation mechanism adopts part more, assembly technology is comparatively complicated, reliability is relatively low, efficiency of assembling is relatively low.In addition, the dynamic assembly that touches of current switch comprises action contact frame and movable contact spring, and be connected by extension spring between movable contact spring with base, dynamic top of touching group is provided with the electronic components such as wiring board, easily produces short circuit or interference phenomenon.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of motor DC switch, and the electronic commutation mechanism structure of this DC switch is simple, reliable, and quick and precisely, assembling is simple in commutation.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of motor DC switch, comprise the base and cover plate that interfix, described cover plate is provided with wiring board, base is provided with cooperatively interact dynamic and touches assembly and stationary contact assembly, described base is provided with push rod, described base is run through and exposed in one end of this push rod, back-moving spring is provided with between the other end and base, described push rod drives dynamic tactile assembly action be communicated with stationary contact assembly or disconnect, described push rod is provided with resistance trimming shell fragment, position corresponding on described wiring board is provided with the resistance trimming golden finger be slidably matched with described resistance trimming shell fragment, described base is also provided with electronic commutation mechanism, described electronic commutation mechanism comprises the slide block be slidably mounted on base, described slide block is fixed with commutation shell fragment, described wiring board is provided with the commutation golden finger contacted with the shell fragment that commutates, described base is rotatablely equipped with commutation and dials handle, described commutation is dialled to be in transmission connection between handle and slide block and is driven slide block repeatedly to slide, described base is provided with the detent mechanism that commutation group handle is positioned.
As the preferred scheme of one, described detent mechanism comprises the positioning pedestal be fixed on base, described positioning pedestal is provided with spring mounting hole, in described spring mounting hole, Compress Spring is installed, the arranged outside of described Compress Spring has positioning bead, described commutation is dialled on handle and is provided with the location arc with positioning bead location fit, and described location arc constitutes several location notchs, and described location notch compresses described positioning bead.
As the preferred scheme of one, the mode of being in transmission connection that described commutation is dialled between handle and slide block is: the middle part that handle is dialled in described commutation is provided with rotating shaft, described commutation is dialled handle and is realized rotating installation by rotating shaft, one end that handle is dialled in described commutation is struck side, the other end is positioning end, described commutation is dialled on handle and is provided with power transmission shaft, described slide block is provided with the driving groove of the inclination coordinated with power transmission shaft, and described driving groove bearing of trend is crossing with the glide direction of slide.
As the preferred scheme of one, the described dynamic assembly that touches comprises action contact frame and movable contact spring, described action contact frame is fixed on base, this action contact frame is provided with spring support, the middle part of described movable contact spring swings and is installed on action contact frame, one end of movable contact spring is contact jaw, the other end of movable contact spring is manipulation end, the contact jaw of described movable contact spring is provided with moving contact, described movable contact spring be provided with the extension spring forcing the contact jaw of movable contact spring to contact stationary contact assembly between spring support, described push rod is provided with the pressing portion of manipulation end of pushing movable contact spring.
As the preferred scheme of one, described wiring board is arranged at dynamic side of touching assembly, is provided with insulation division board between described wiring board and action contact frame.
As the preferred scheme of one, described cover plate comprises cover board body and gland, described cover board body is provided with several winding displacement half grooves, side near cover board body on described gland is provided with several line ball half grooves, described line ball half groove coordinates with winding displacement half groove one_to_one corresponding, and each winding displacement half groove and line ball half groove are provided with dust-proof flange.
As the preferred scheme of one, described base and cover plate are respectively arranged with the through hole facilitating push rod to run through and slide, described push rod is arranged with dust-proof seal ring, described dust-proof seal ring is arranged in through hole.
As the preferred scheme of one, fixed by snap between described base and cover plate, the end face that described base coordinates with cover plate is provided with slot or convex tendon, corresponding, the end face of described cover plate and base engagement is provided with convex tendon or slot, described convex tendon inserts in slot and realizes dust-proof cooperation.
After have employed technique scheme, effect of the present utility model is: because described electronic commutation mechanism comprises the slide block be slidably mounted on base, described slide block is fixed with commutation shell fragment, described wiring board is provided with the commutation golden finger contacted with the shell fragment that commutates, described base is rotatablely equipped with commutation and dials handle, described commutation is dialled to be in transmission connection between handle and slide block and is driven slide block repeatedly to slide, described base is provided with the detent mechanism that commutation group handle is positioned, therefore, utilize commutation to dial handle and can stir skid, skid just drives commutation shell fragment to slide, such commutation shell fragment just changes with the contact position of commutation golden finger, realize the connection of different circuit, realize commutation.This commutating structure is simple, reliable in action, and quick and precisely, assembling is simple, reduces cost to a certain extent in commutation.
Again because the described dynamic assembly that touches comprises action contact frame and movable contact spring, described action contact frame is fixed on base, this action contact frame is provided with spring support, the middle part of described movable contact spring swings and is installed on action contact frame, one end of movable contact spring is contact jaw, the other end of movable contact spring is manipulation end, the contact jaw of described movable contact spring is provided with moving contact, described movable contact spring be provided with the extension spring forcing the contact jaw of movable contact spring to contact stationary contact assembly between spring support, described push rod is provided with the pressing portion of the manipulation end of pushing movable contact spring, dynamic tactile assembly property is reliable and stable, extension spring is installed between spring support and movable contact spring, structure is more firm.
Again because described wiring board is arranged at dynamic side of touching assembly, between described wiring board and action contact frame, be provided with insulation division board, utilize insulation division board can effectively isolate wiring board and action contact frame, avoid the problem of short circuit and interference.
Again due to as the preferred scheme of one, described cover plate comprises cover board body and gland, described cover board body is provided with several winding displacement half grooves, side near cover board body on described gland is provided with several line ball half grooves, described line ball half groove coordinates with winding displacement half groove one_to_one corresponding, and each winding displacement half groove and line ball half groove are provided with dust-proof flange.Utilize dust-proof flange effectively can compress wire harness, and play effect dust-proof on wire harness.
Again owing to described base and cover plate being respectively arranged with the through hole facilitating push rod to run through and slide, described push rod is arranged with dust-proof seal ring, described dust-proof seal ring is arranged in through hole, and the installation site of push rod also can be played dust-proof.
Again due to fixed by snap between described base and cover plate, the end face that described base coordinates with cover plate is provided with slot or convex tendon, corresponding, the end face of described cover plate and base engagement is provided with convex tendon or slot, described convex tendon inserts in slot and realizes dust-proof cooperation, like this, cover plate and base connected and composed mazy dustproof construction, improve dust-proof effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the explosive view of the utility model embodiment;
Fig. 2 is the base of the utility model embodiment, push rod, dynamic touch assembly, stationary contact assembly, electronic commutation mechanism mounting structure figure;
Fig. 3 is the stereogram touching assembly;
Schematic diagram when Tu4Shi electronic commutation mechanism does not commutate;
Fig. 5 is the upward view of Fig. 4;
The commutation shell fragment of Tu6Shi electronic commutation mechanism shifts to schematic diagram during right side;
Fig. 7 is the upward view of Fig. 6;
The commutation shell fragment of Tu8Shi electronic commutation mechanism shifts to schematic diagram during left side;
Fig. 9 is the upward view of Fig. 8;
Figure 10 is the structure chart of cover board body;
Figure 11 is the structural representation of gland;
Figure 12 is the structural representation of base;
Figure 13 is the structural representation of the another side of cover board body;
In accompanying drawing: 1. gland; 101. line ball half grooves; 102. dust-proof flanges; 2. square seal ring; 3. cover board body; 301. winding displacement half grooves; 302. dust-proof flanges; 303. convex tendon; 304. through hole; 4. wire harness; 5. wiring board; 6. insulate division board; 7. stationary contact frame; 8. fixed contact; 9. commutate shell fragment; 10. resistance trimming shell fragment; 11. action contact frames; 12. spring supports; 13. movable contact springs; 131 contact jaws; 132. manipulation end; 14. extension springs; 15. push rods; 16. back-moving springs; 17. dust-proof seal rings; 18. moving contacts 18; 19. positioning pedestals; 20. Compress Springs; 21. positioning beads 2; Handle is dialled in 22. commutations; 221. rotating shaft; 222. struck side; 223. positioning end; 224. location arcs; 23. slide blocks; 24. driving grooves; 25. bases; 251. slot; 252. through hole; 26. commutation golden fingers; 27. resistance trimming golden fingers.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
As shown in figure 1 to figure 13, a kind of motor DC switch, comprises the base 25 and cover plate that interfix, and the surrounding of base 25 and cover plate clamps fixing by buckle structure realization.
As Fig. 1, Figure 10, shown in Figure 11 and Figure 12, described cover plate comprises cover board body 3 and gland 1, described cover board body 3 is provided with several winding displacement half grooves 301, side near cover board body 3 on described gland 1 is provided with several line ball half grooves 101, described line ball half groove 101 coordinates with winding displacement half groove 301 one_to_one corresponding, each winding displacement half groove 301 and line ball half groove 101 are provided with dust-proof flange 302, 102, be used for compressing wire harness 4, the opposite side of cover board body 3 coordinates with base 25, the end face that described cover board body 3 coordinates with base 25 is provided with convex tendon 303 or slot 251, the end face that described base 25 coordinates with cover plate is provided with slot 251 or convex tendon 303, corresponding, described convex tendon 303 inserts in slot 251 and realizes dust-proof cooperation.In the present embodiment, base 25 is be provided with slot 251, and cover board body 3 is be provided with convex tendon 303, such convex tendon 303 inserts that to achieve labyrinth type in slot 251 dust-proof, described base 25 and cover plate are respectively arranged with the through hole 252,304 facilitating push rod 15 to run through and to slide, described push rod 15 is arranged with dust-proof seal ring 17, and described dust-proof seal ring 17 is arranged in through hole 252,304.
Described cover plate is provided with wiring board 5, wiring board 5 is between cover plate and base 25, square seal ring 2 is provided with between cover plate and wiring board 5, be used for preventing external dust from entering switch internal, base 25 is provided with cooperatively interact dynamic and touches assembly and stationary contact assembly, described wiring board 5 is arranged at dynamic side of touching assembly, is provided with the division board 6 that insulate between described wiring board 5 and action contact frame 11, insulation division board 6 is used for insulating, and avoids dynamic tactile assembly to contact with wiring board 5 and causes short circuit or interference problem.
As Fig. 1, shown in 2 and Fig. 3, the described dynamic assembly that touches comprises action contact frame 11 and movable contact spring 13, described action contact frame 11 is fixed on base 25, this action contact frame 11 is provided with spring support 12, fixed by plug-in mounting between spring support 12 and action contact frame 11, the middle part of described movable contact spring 13 swings and is installed on action contact frame 11, one end of movable contact spring 13 is contact jaw 131, the other end of movable contact spring 13 is manipulation end 132, the contact jaw 131 of described movable contact spring 13 is provided with moving contact 18, described movable contact spring 13 be provided with the extension spring 14 forcing the contact jaw 131 of movable contact spring 13 to contact stationary contact assembly between spring support 12, described push rod 15 is provided with the pressing portion of the manipulation end 132 of pushing movable contact spring 13.Push rod 15 is when upspringing, the pressing portion of push rod 15 just compresses manipulation end 132 forces contact jaw 131 and stationary contact components apart, and when push rod 15 is pressed, pressing portion is separated with manipulation end 132, now under the effect of extension spring 14, moving contact 18 and the stationary contact component touch of contact jaw 131 realize conducting.
As shown in Figure 1, described stationary contact assembly comprises the stationary contact frame 7 be fixed on base 25, stationary contact frame 7 is provided with fixed contact 8, and the below that fixed contact 8 is in moving contact 18 coordinates with moving contact 18.
Described base 25 is run through and exposed in one end of this push rod 15, back-moving spring 16 is provided with between the other end and base 25, described push rod 15 drives dynamic tactile assembly action be communicated with stationary contact assembly or disconnect, described push rod 15 is provided with resistance trimming shell fragment 10, position corresponding on described wiring board 5 is provided with the resistance trimming golden finger 27 be slidably matched with described resistance trimming shell fragment 10, as shown in Figure 5, resistance trimming golden finger 27 is Copper Foil nickel coatings conventional on wiring board 5, when pressing lower push-rod 15, not only achieve moving contact 18 and contact conducting with fixed contact 8, but also resistance trimming shell fragment 10 is changed in the position of resistance trimming golden finger 27, thus have adjusted resistance, wiring board 5 by external holding wire by resistance signal transmission to external circuit, realize speed governing.
As shown in Fig. 4 to Fig. 9, described base 25 is also provided with electronic commutation mechanism, described electronic commutation mechanism comprises the slide block 23 be slidably mounted on base 25, described slide block 23 is fixed with commutation shell fragment 9, described wiring board 5 is provided with the commutation golden finger 26 contacted with the shell fragment 9 that commutates, described base 25 is rotatablely equipped with commutation and dials handle 22, described commutation is dialled to be in transmission connection between handle 22 and slide block 23 and is driven slide block 23 repeatedly to slide, and described base 25 is provided with and dials to commutation the detent mechanism that handle 22 positions.
Described detent mechanism comprises the positioning pedestal 19 be fixed on base 25, described positioning pedestal 19 is provided with spring mounting hole, Compress Spring 20 is installed in described spring mounting hole, the arranged outside of described Compress Spring 20 has positioning bead 21, described commutation is dialled on handle 22 and is provided with the location arc 224 with positioning bead 2121 location fit, described location arc 224 constitutes several location notchs, described location notch compresses described positioning bead 21, the shell fragment 9 that commutates in the present embodiment needs three stations, namely do not commutate station, move to left station and the station that moves to right, corresponding, the station that do not commutate does not have signal to export, the station that moves to left exports left rotaring signal, the station that moves to right exports right turn signal, therefore the location arc 224 that commutation is dialled on handle 22 has three location notchs, such as just locating group handle 22 that commutates when positioning bead 21 enters the location notch corresponding with the station that do not commutate and being in intermediate stations.And the golden finger 26 that commutates has four sections of copper foil layers on wiring board 5, comprising the normal contact-segment that a segment length is longer, one end moment of commutation shell fragment 9 contacts with normal contact-segment, the other end of commutation shell fragment 9 then selects sliding contact in other three sections, thus realize commutation, as shown in Figure 4 and Figure 5, commutation is dialled handle 22 and to be mediated station, namely do not export commutation signal, as shown in Figure 6,7, commutation shell fragment 9 is driven by slide block 23 and moves to right, realize commutation of turning right, as shown in Figure 8,9, commutation shell fragment 9 is driven by slide block 23 and moves to left, and realizes commutation.
The mode of being in transmission connection that described commutation is dialled between handle 22 and slide block 23 is: the middle part that handle 22 is dialled in described commutation is provided with rotating shaft 221, described commutation is dialled handle 22 and is realized rotating installation by rotating shaft 221, one end that handle 22 is dialled in described commutation is struck side 222, the other end is positioning end 223, described commutation is dialled on handle 22 and is provided with power transmission shaft, described slide block 23 is provided with the driving groove 24 of the inclination coordinated with power transmission shaft, described driving groove 24 bearing of trend is crossing with the glide direction of slide.
DC switch in the utility model utilizes commutation to dial handle 22, slide block 23 and commutation shell fragment 9 and realizes commutation, and structure is simple, and assembly technology is simple, to a certain degree reduces costs.The dynamic assembly that touches is solid and reliable and isolate with wiring board 5, avoids signal disturbing and short circuit phenomenon, utilizes the dust-proof of multiple dust-proof position, greatly improve the dust-proof effect of switch.
The above embodiment is only the description to the preferred embodiment of the present invention; not as limiting the scope of the invention; design on the basis of spirit not departing from the present invention; the various distortion make technical solution of the present invention and transformation, all should fall in protection range that claims of the present invention determine.
Claims (8)
1. a motor DC switch, comprise the base and cover plate that interfix, described cover plate is provided with wiring board, base is provided with cooperatively interact dynamic and touches assembly and stationary contact assembly, described base is provided with push rod, described base is run through and exposed in one end of this push rod, back-moving spring is provided with between the other end and base, described push rod drives dynamic tactile assembly action be communicated with stationary contact assembly or disconnect, described push rod is provided with resistance trimming shell fragment, position corresponding on described wiring board is provided with the resistance trimming golden finger be slidably matched with described resistance trimming shell fragment, described base is also provided with electronic commutation mechanism, it is characterized in that: described electronic commutation mechanism comprises the slide block be slidably mounted on base, described slide block is fixed with commutation shell fragment, described wiring board is provided with the commutation golden finger contacted with the shell fragment that commutates, described base is rotatablely equipped with commutation and dials handle, described commutation is dialled to be in transmission connection between handle and slide block and is driven slide block repeatedly to slide, described base is provided with the detent mechanism that commutation group handle is positioned.
2. a kind of motor DC switch as claimed in claim 1, it is characterized in that: described detent mechanism comprises the positioning pedestal be fixed on base, described positioning pedestal is provided with spring mounting hole, in described spring mounting hole, Compress Spring is installed, the arranged outside of described Compress Spring has positioning bead, described commutation is dialled on handle and is provided with the location arc with positioning bead location fit, and described location arc constitutes several location notchs, and described location notch compresses described positioning bead.
3. a kind of motor DC switch as claimed in claim 2, it is characterized in that: the mode of being in transmission connection that described commutation is dialled between handle and slide block is: the middle part that handle is dialled in described commutation is provided with rotating shaft, described commutation is dialled handle and is realized rotating installation by rotating shaft, one end that handle is dialled in described commutation is struck side, the other end is positioning end, described commutation is dialled on handle and is provided with power transmission shaft, described slide block is provided with the driving groove of the inclination coordinated with power transmission shaft, described driving groove bearing of trend is crossing with the glide direction of slide.
4. a kind of motor DC switch as claimed in claim 3, it is characterized in that: the described dynamic assembly that touches comprises action contact frame and movable contact spring, described action contact frame is fixed on base, this action contact frame is provided with spring support, the middle part of described movable contact spring swings and is installed on action contact frame, one end of movable contact spring is contact jaw, the other end of movable contact spring is manipulation end, the contact jaw of described movable contact spring is provided with moving contact, described movable contact spring be provided with the extension spring forcing the contact jaw of movable contact spring to contact stationary contact assembly between spring support, described push rod is provided with the pressing portion of the manipulation end of pushing movable contact spring.
5. a kind of motor DC switch as claimed in claim 4, is characterized in that: described wiring board is arranged at dynamic side of touching assembly, is provided with insulation division board between described wiring board and action contact frame.
6. a kind of motor DC switch as claimed in claim 5, it is characterized in that: described cover plate comprises cover board body and gland, described cover board body is provided with several winding displacement half grooves, side near cover board body on described gland is provided with several line ball half grooves, described line ball half groove coordinates with winding displacement half groove one_to_one corresponding, and each winding displacement half groove and line ball half groove are provided with dust-proof flange.
7. a kind of motor DC switch as claimed in claim 6, is characterized in that: described base and cover plate are respectively arranged with the through hole facilitating push rod to run through and slide, described push rod is arranged with dust-proof seal ring, described dust-proof seal ring is arranged in through hole.
8. a kind of motor DC switch as claimed in claim 7, it is characterized in that: fixed by snap between described base and cover plate, the end face that described base coordinates with cover plate is provided with slot or convex tendon, corresponding, the end face of described cover plate and base engagement is provided with convex tendon or slot, described convex tendon inserts in slot and realizes dust-proof cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998363.9U CN205159133U (en) | 2015-12-04 | 2015-12-04 | Motor direct current switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998363.9U CN205159133U (en) | 2015-12-04 | 2015-12-04 | Motor direct current switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159133U true CN205159133U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998363.9U Active CN205159133U (en) | 2015-12-04 | 2015-12-04 | Motor direct current switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159133U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390313A (en) * | 2015-12-04 | 2016-03-09 | 苏州华之杰电讯有限公司 | DC switch of motor |
| CN108962644A (en) * | 2018-09-04 | 2018-12-07 | 浙江佳奔电子有限公司 | A kind of dust-proof DC trigger signaling switch of extra small figure |
| CN109801799A (en) * | 2019-03-11 | 2019-05-24 | 浙江佳奔电子有限公司 | A kind of DC trigger switch with on-off function |
| CN113921311A (en) * | 2021-09-30 | 2022-01-11 | 浙江佳奔电子有限公司 | Mini DC brushless trigger signal switch |
| CN114974940A (en) * | 2022-07-28 | 2022-08-30 | 苏州华之杰电讯股份有限公司 | High-stability movable contact group module |
-
2015
- 2015-12-04 CN CN201520998363.9U patent/CN205159133U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390313A (en) * | 2015-12-04 | 2016-03-09 | 苏州华之杰电讯有限公司 | DC switch of motor |
| CN108962644A (en) * | 2018-09-04 | 2018-12-07 | 浙江佳奔电子有限公司 | A kind of dust-proof DC trigger signaling switch of extra small figure |
| CN109801799A (en) * | 2019-03-11 | 2019-05-24 | 浙江佳奔电子有限公司 | A kind of DC trigger switch with on-off function |
| CN113921311A (en) * | 2021-09-30 | 2022-01-11 | 浙江佳奔电子有限公司 | Mini DC brushless trigger signal switch |
| CN114974940A (en) * | 2022-07-28 | 2022-08-30 | 苏州华之杰电讯股份有限公司 | High-stability movable contact group module |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Wuzhong District Suzhou City, Jiangsu Province town 215156 Suzhou Huazhijie Telecom Limited by Share Ltd Patentee after: Suzhou Huazhijie Telecom Limited by Share Ltd Address before: Wuzhong District Suzhou City, Jiangsu Province town 215100 Suzhou Huazhijie Telecom Co. Ltd. Patentee before: Suzhou Huazhijie Telecom Co., Ltd. |