CN110834142A - Lithium battery welding auxiliary device - Google Patents
Lithium battery welding auxiliary device Download PDFInfo
- Publication number
- CN110834142A CN110834142A CN201911189392.XA CN201911189392A CN110834142A CN 110834142 A CN110834142 A CN 110834142A CN 201911189392 A CN201911189392 A CN 201911189392A CN 110834142 A CN110834142 A CN 110834142A
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- China
- Prior art keywords
- lithium battery
- lifting platform
- welding
- auxiliary device
- frame
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 99
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 84
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000003825 pressing Methods 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 150000002641 lithium Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
Abstract
The invention belongs to the technical field of lithium batteries and discloses a lithium battery welding auxiliary device. This lithium battery welding auxiliary device includes: a frame; the welding machine is arranged on the frame and comprises a welding head; the adjusting mechanism is arranged on the rack and positioned below the welding head, and comprises a lifting platform, a guide assembly and a limiting assembly, wherein the lithium battery is placed on the lifting platform, and the lifting platform can lift in the vertical direction to drive the lithium battery to lift, so that the height of the lithium battery relative to the welding head is changed; the limiting assembly is arranged on the lifting platform, can move in a horizontal plane to limit the welding position of the lithium battery, can be compatible with welding of the positive electrode and the negative electrode of batteries with different specifications, and improves the universality of the auxiliary device; the guide assembly is connected below the lifting platform and used for guiding the lifting platform to lift, so that the lifting platform is prevented from deflecting, the horizontal precision of the lifting platform in the lifting process is guaranteed, and the welding quality is improved.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery welding auxiliary device.
Background
At present, ultrasonic welding is adopted in lithium battery welding in the new energy industry, when ultrasonic welding is carried out, the position of a lithium battery relative to a bottom die welding head needs to be limited and fixed through a relevant auxiliary device such as a clamp, the current auxiliary device is simple, the relative position of the lithium battery cannot be accurately or rapidly adjusted, the welding effect is poor, manpower is generally spent on continuous debugging in production, and work time is delayed.
Therefore, it is desirable to provide a welding auxiliary device for lithium batteries to solve the above technical problems in the prior art.
Disclosure of Invention
The invention aims to provide a lithium battery welding auxiliary device, which improves the positioning accuracy and convenience of a lithium battery welding position.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lithium battery welding auxiliary device includes:
a frame;
a welder mounted on the frame, the welder including a welding head;
adjustment mechanism for the welding position of adjustment lithium cell, adjustment mechanism installs in the frame and be located the below of bonding tool, adjustment mechanism includes lift platform, direction subassembly and spacing subassembly, the lithium cell is placed lift platform is last, lift platform is configured as can be in the ascending and descending of vertical direction, spacing subassembly sets up lift platform is last, spacing subassembly is configured as can remove in order to restrict in the horizontal plane the welding position of lithium cell, direction subassembly connect in lift platform below is used for doing lift platform's lift direction.
As the preferable technical scheme of the auxiliary device for welding the lithium battery, the adjusting mechanism further comprises a support frame and a driving assembly, the support frame is connected to the front panel of the rack, one end of the driving assembly is connected to the support frame, the other end of the driving assembly is connected to the lifting platform, and the driving assembly is used for driving the lifting platform to move up and down.
As the preferable technical scheme of the auxiliary device for welding the lithium battery, the driving assembly comprises an ejector rod in threaded connection with the support frame and a fastener sleeved outside the ejector rod, the ejector rod is connected to the lower surface of the lifting platform to drive the lifting platform to lift, and the fastener is used for fixing the height of the ejector rod.
As a preferred technical solution of the above-mentioned lithium battery welding auxiliary device, the guide assembly is provided with at least two sets, which are respectively located on the periphery of the driving assembly.
As an optimal technical scheme of the auxiliary device for welding the lithium battery, the guide assembly comprises a linear bearing arranged on the support frame and a guide rod arranged in the linear bearing in a penetrating mode, the guide rod is connected to the lower surface of the lifting platform, and the guide rod can lift synchronously with the lifting platform.
As the preferred technical scheme of above-mentioned lithium battery welding auxiliary device, the direction subassembly is including setting up slider and sliding connection on the support frame in the slide rail of slider, slide rail connect in lift platform's lower surface, the slide rail can with lift platform goes up and down in step.
As a preferred technical solution of the above-mentioned lithium battery welding auxiliary device, the number of the guide assemblies is set to four groups, and the four groups of the guide assemblies are respectively arranged around the driving assembly at equal distances with the driving assembly as a center.
As a preferred technical solution of the above-mentioned lithium battery welding auxiliary device, a battery holder is further provided on the lifting platform, the lithium battery is placed on the battery holder, and the limiting assemblies are both provided on the lifting platform and the battery holder.
As a preferable technical solution of the above lithium battery welding auxiliary device, the lithium battery welding auxiliary device further includes a pre-pressing mechanism, the pre-pressing mechanism is installed on the frame and located above the adjusting mechanism, and the pre-pressing mechanism is configured to move up and down in a vertical direction to press the lithium battery.
As above-mentioned lithium battery welding auxiliary device's preferred technical scheme, prepressing mechanism includes mounting bracket, cylinder and briquetting, the mounting bracket is installed on the front panel of frame, the cylinder is installed on the mounting bracket, the briquetting connect in the output of cylinder.
Compared with the prior art, the invention has the advantages and beneficial effects that:
according to the auxiliary device for welding the lithium battery, the adjusting mechanism is arranged below the welding head, so that the welding position of the lithium battery can be adjusted before welding: the adjusting mechanism comprises a lifting platform, a guide assembly and a limiting assembly, the lithium battery is placed on the lifting platform, and the lifting platform can lift in the vertical direction to drive the lithium battery to move up and down, so that the height of the lithium battery relative to a welding head of the welding machine is changed; the limiting assembly arranged on the lifting platform can move in the horizontal plane to limit the welding position of the lithium battery in the horizontal plane, and can be compatible with welding of the positive and negative electrodes of batteries with different specifications, so that the universality of the auxiliary device is improved; through set up the direction subassembly in lift platform below, can lead for lift platform's lift, avoid lift platform to take place to deflect to guarantee lift platform at the horizontal precision of lift in-process, improve welding quality.
Drawings
Fig. 1 is a side view of a lithium battery welding auxiliary device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lithium battery welding auxiliary device according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a lithium battery welding auxiliary device according to an embodiment of the present invention.
The figures are labeled as follows:
1. a frame; 2. a welding machine; 21. a welding head;
3. an adjustment mechanism; 31. a lifting platform; 32. a guide assembly; 321. a linear bearing; 322. a guide bar; 33. a support frame; 34. a drive assembly; 341. a top rod; 342. a fastener; 35. a battery holder; 36. a limiting block; 37. a battery cover plate;
4. a pre-pressing mechanism; 41. a mounting frame; 42. a cylinder; 43. connecting blocks; 44. briquetting; 45. and (4) a manual valve.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment discloses a lithium battery welding auxiliary device, as shown in fig. 1 and 2, which comprises a rack 1, a welding machine 2 and an adjusting mechanism 3, wherein the welding machine 2 is installed on the rack 1, and the welding machine 2 comprises a welding head 21 for welding a lug of a lithium battery; the adjusting mechanism 3 is used for adjusting the welding position of the lithium battery, and the adjusting mechanism 3 is installed on the rack 1 and is positioned below the welding head 21. The whole auxiliary device takes the front panel of the frame 1 as an installation reference, the whole framework is complete and compact, the occupied space is small, and meanwhile, the mutual interference influence is avoided.
As shown in fig. 3, the adjusting mechanism 3 includes a lifting platform 31, a guiding assembly 32 and a limiting assembly, a lithium battery (not shown in the figure) is placed on the lifting platform 31, and the lifting platform 31 is configured to be capable of lifting in a vertical direction to drive the lithium battery to lift, so as to change the height of the lithium battery relative to the soldering head 21. The limiting assembly is arranged on the lifting platform 31 and configured to be capable of moving in the horizontal plane to limit the welding position of the lithium battery in the horizontal plane, and the limiting assembly can be compatible with welding of the positive electrode and the negative electrode of batteries with different specifications, so that the universality of the auxiliary device for welding the lithium battery is improved. Guide assembly 32 is connected in lift platform 31 below, can lead for lift platform 31's lift, avoids lift platform 31 to take place to deflect to guarantee lift platform 31 at the horizontal precision of lift in-process, guarantee utmost point ear welding effect, improve welding quality.
Specifically, the adjusting mechanism 3 further includes a supporting frame 33 and a driving assembly 34, the supporting frame 33 is connected to the front panel of the rack 1, one end of the driving assembly 34 is connected to the supporting frame 33, the other end of the driving assembly is connected to the lifting platform 31, and the driving assembly 34 is used for driving the lifting platform 31 to move up and down.
In this embodiment, the driving assembly 34 includes a ram 341 and a fastener 342. The periphery of the top rod 341 is provided with an external thread, the support frame 33 is correspondingly provided with a threaded hole, the top rod 341 is in threaded connection with the threaded hole of the support frame 33, and the top part of the top rod 341 is connected with the lower surface of the lifting platform 31 so as to drive the lifting platform 31 to lift. The fastener 342 is sleeved outside the top rod 341 and used for fixing the height of the top rod 341. Preferably, the fastening member 342 is a nut, which is screwed onto the top rod 341, when a deviation exists in the up-down relative position of the lithium battery tab and the welding head 21 during the welding process, the top rod 341 can be manually rotated to adjust the height of the lifting platform 31, and after the position is determined, the nut is tightened to fix the position of the top rod 341. This drive assembly 34 makes ejector pin 341 can turn into the up-and-down movement of lift platform 31 with the rotation, and need not to drive lift platform 31 and rotate for go up and down to become simple, and manual mode of regulation is simple swift. The driving assembly 34 is not limited to the manual mode in this embodiment, and in other embodiments, the driving assembly 34 may also adopt a servo motor, and the structure is conventional and will not be described herein.
The guide assemblies 32 are provided with at least two groups, which are respectively located on the periphery of the driving assembly 34 and used for guiding the driving assembly 34 to drive the lifting platform 31 to lift.
Further, the guiding assembly 32 includes a linear bearing 321 disposed on the supporting frame 33 and a guide rod 322 disposed in the linear bearing 321 in a penetrating manner, the guide rod 322 is connected to the lower surface of the lifting platform 31, and the guide rod 322 can lift synchronously with the lifting platform 31, so as to ensure that the horizontal accuracy of the lifting platform 31 in the lifting process is not affected substantially, and prevent the lifting platform 31 from tilting. The structure of the guide assembly 32 is not limited thereto, and in other embodiments, the guide assembly 32 includes a slider disposed on the support frame 33 and a slide rail slidably connected to the slider, the slide rail is connected to the lower surface of the lifting platform 31, and the slide rail can be lifted synchronously with the lifting platform 31.
Further preferably, in the present embodiment, the number of the guide assemblies 32 is four, and the four sets of the guide assemblies 32 are respectively arranged around the driving assembly 34 at equal distances with the driving assembly 34 as the center, so that the lifting platform 31 is lifted more stably and the horizontal precision is higher. The number of the guide assemblies 32 is not limited to four, and may be three or more, and will not be described herein.
In this embodiment, the lifting platform 31 is further provided with a battery holder 35, and a lithium battery is placed on the battery holder 35 for welding. All be equipped with spacing subassembly on lift platform 31 and the battery seat 35, spacing subassembly is used for injecing the welding position of lithium cell on battery seat 35. Specifically, the limiting component on the lifting platform 31 is used for limiting the specific position of the battery holder 35, and the limiting component on the battery holder 35 is used for limiting the specific position of the lithium battery, so that the welding position of the lithium battery is determined by the limiting component on the lifting platform 31 and the limiting component on the battery holder 35.
The limiting assembly comprises a plurality of limiting blocks 36, and the limiting blocks 36 are made of bakelite. The lithium battery is positioned by adjusting the position of the limiting block 36 in the horizontal plane. According to the lithium cell of different specifications, adjust the position of stopper 36 to fix a position the lithium cell and carry out accurate welding to suitable welding position, guarantee welding quality, and can compatible the utmost point ear welding of different specifications lithium cells, improved this lithium cell welding auxiliary device's commonality.
Preferably, the limiting block 36 is provided with a waist-shaped adjusting hole, the lifting platform 31 and the battery holder 35 are provided with connecting holes, and the adjusting hole and the connecting holes are penetrated and fixed by connecting pieces, so that the position adjustment of the limiting block 36 can be realized. Optionally, in order to improve the stability of the limiting blocks 36 during adjustment, two adjusting holes are formed in each limiting block 36 at intervals and face each other. The above-mentioned adjusting manner of the limiting block 36 is a structure that is common in the prior art, and is not described herein again.
In order to further avoid the position deviation to appear when the lithium cell welds, lithium cell welding auxiliary device in this embodiment still includes battery cover plate 37, and battery cover plate 37 is used for pressing on the lithium cell when the welding, plays the effect of supplementary fixed lithium cell position. For convenient operation, the battery cover 37 is provided with a handle.
In the prior art, the problem of uneven lugs can occur in the lug position of the lithium battery due to the problems of the production process of the lithium battery and the like, and the subsequent welding effect is influenced.
To overcome this problem, in the present embodiment, the auxiliary welding device for lithium battery further includes a pre-pressing mechanism 4 for pre-pressing the battery welding position before welding to ensure the tab welding effect. Specifically, the prepressing mechanism 4 is installed on the frame 1 and located above the adjusting mechanism 3, and the prepressing mechanism 4 can move up and down in the vertical direction to press the tabs of the lithium battery, so that the tabs are guaranteed to have good flatness during welding, and the welding quality is guaranteed.
Further, the prepressing mechanism 4 comprises a mounting frame 41, a cylinder 42 and a pressing block 44, the mounting frame 41 is mounted on the front panel of the frame 1, the cylinder 42 is mounted on the top of the mounting frame 41, the pressing block 44 is connected to the output end of the cylinder 42, and the pressing block 44 is located above the welding head 21 and exceeds the welding head 21 so as to press the tabs. In order to improve the motion stability of the pressure head, a connecting block 43 is arranged between the pressure head and the output end of the air cylinder 42. The pressure head can be dismantled and connect in connecting block 43 bottom, conveniently changes the pressure head.
In the present embodiment, the operation of the air cylinder 42 is manually controlled by the manual valve 45 provided below the elevating platform 31, so as to control whether the ram performs the pre-pressing operation, and the manual mode is simple and quick. In other embodiments, an automatic control mode may also be adopted, for example, the air cylinder 42 may be controlled by an electromagnetic valve, so that the pre-pressing action is completed before the welding.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A lithium battery welding auxiliary device is characterized by comprising:
a frame (1);
the welding machine (2) is arranged on the rack (1), and the welding machine (2) comprises a welding head (21);
adjustment mechanism (3) for the welding position of adjustment lithium cell, adjustment mechanism (3) are installed frame (1) is gone up and is located the below of bonding tool (21), adjustment mechanism (3) are including lift platform (31), guide component (32) and spacing subassembly, the lithium cell is placed lift platform (31) are last, lift platform (31) are configured to can go up and down in vertical direction, spacing subassembly sets up lift platform (31) are last, spacing subassembly is configured to can move in order to restrict in the horizontal plane the welding position of lithium cell, guide component (32) connect in lift platform (31) below, be used for doing the lift direction of lift platform (31).
2. The lithium battery welding auxiliary device according to claim 1, characterized in that the adjusting mechanism (3) further comprises a supporting frame (33) and a driving assembly (34), the supporting frame (33) is connected to the front panel of the machine frame (1), one end of the driving assembly (34) is connected to the supporting frame (33), the other end of the driving assembly is connected to the lifting platform (31), and the driving assembly (34) is used for driving the lifting platform (31) to move up and down.
3. The lithium battery welding auxiliary device as claimed in claim 2, wherein the driving assembly (34) comprises a top bar (341) screwed to the supporting frame (33) and a fastening member (342) sleeved outside the top bar (341), the top bar (341) is connected to the lower surface of the lifting platform (31) to drive the lifting platform (31) to lift, and the fastening member (342) is used for fixing the height of the top bar (341).
4. The lithium battery welding assistance device according to claim 2, characterized in that said guiding assembly (32) is provided in at least two groups, each located at the periphery of said driving assembly (34).
5. The lithium battery welding auxiliary device according to claim 4, characterized in that the guide assembly (32) comprises a linear bearing (321) arranged on the support frame (33) and a guide rod (322) arranged in the linear bearing (321) in a penetrating manner, the guide rod (322) is connected to the lower surface of the lifting platform (31), and the guide rod (322) can be lifted synchronously with the lifting platform (31).
6. The lithium battery welding auxiliary device of claim 4, characterized in that the guide assembly (32) comprises a sliding block arranged on the support frame (33) and a sliding rail connected to the sliding block in a sliding manner, the sliding rail is connected to the lower surface of the lifting platform (31), and the sliding rail can be lifted synchronously with the lifting platform (31).
7. The lithium battery welding auxiliary device according to any one of claims 4-6, characterized in that the number of the guide assemblies (32) is four, and the four guide assemblies (32) are respectively arranged around the driving assembly (34) at equal distances by taking the driving assembly (34) as a center.
8. The lithium battery welding auxiliary device according to claim 1, wherein a battery holder (35) is further disposed on the lifting platform (31), the lithium battery is placed on the battery holder (35), and the limiting assemblies are disposed on both the lifting platform (31) and the battery holder (35).
9. The lithium battery welding auxiliary device according to claim 1, characterized in that the lithium battery welding auxiliary device further comprises a pre-pressing mechanism (4), the pre-pressing mechanism (4) is mounted on the frame (1) and located above the adjusting mechanism (3), and the pre-pressing mechanism (4) is configured to move up and down in a vertical direction to press the lithium battery.
10. The lithium battery welding auxiliary device according to claim 9, characterized in that the pre-pressing mechanism (4) comprises a mounting frame (41), a cylinder (42) and a pressing block (44), the mounting frame (41) is mounted on the front panel of the frame (1), the cylinder (42) is mounted on the mounting frame (41), and the pressing block (44) is connected to the output end of the cylinder (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189392.XA CN110834142A (en) | 2019-11-28 | 2019-11-28 | Lithium battery welding auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189392.XA CN110834142A (en) | 2019-11-28 | 2019-11-28 | Lithium battery welding auxiliary device |
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| CN110834142A true CN110834142A (en) | 2020-02-25 |
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| CN201911189392.XA Pending CN110834142A (en) | 2019-11-28 | 2019-11-28 | Lithium battery welding auxiliary device |
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| CN112548304A (en) * | 2020-11-25 | 2021-03-26 | 深圳市中基自动化有限公司 | Full-automatic aluminum-shell battery ultrasonic welding machine |
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Address after: 200240 floor 3, building 2, No. 1488, Cangyuan Road, Minhang District, Shanghai Applicant after: Shanghai Jiaocheng Ultrasonic Technology Co.,Ltd. Address before: 200241 1st floor, building 3, 48 Lane 4916, Hongmei South Road, Minhang District, Shanghai Applicant before: SBT ENGINEERING SYSTEMS Co.,Ltd. |
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Application publication date: 20200225 |
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| RJ01 | Rejection of invention patent application after publication |