CN219268077U - Multifunctional signal acquisition CCS device - Google Patents

Multifunctional signal acquisition CCS device Download PDF

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Publication number
CN219268077U
CN219268077U CN202320272154.0U CN202320272154U CN219268077U CN 219268077 U CN219268077 U CN 219268077U CN 202320272154 U CN202320272154 U CN 202320272154U CN 219268077 U CN219268077 U CN 219268077U
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China
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cell
bus bar
inter
circuit board
flexible circuit
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CN202320272154.0U
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黄锡运
章驰威
杨坤
郭鹏
童成操
彭嘉迁
向灵
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Jiangsu Yaoning New Energy Innovation Technology Co ltd
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Jiangsu Yaoning New Energy Innovation Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model provides a multifunctional signal acquisition CCS device, which comprises: the bracket assembly comprises a cross beam, a plurality of connecting rods and a bracket body, wherein the cross beam is connected with the bracket body through the connecting rods, and a plurality of busbar mounting openings are formed between the cross beam, the bracket body and two adjacent connecting rods; the bus bar assembly comprises an output bus bar, a plurality of inter-cell bus bars and a bridging bus bar, wherein each inter-cell bus bar is arranged on a plurality of bus bar mounting ports, each inter-cell bus bar is fixedly connected with a cross beam, and the bridging bus bar and the output bus bar are respectively arranged at the end parts of the bracket assembly. The flexible circuit board assembly comprises a flexible circuit board, a pressure collecting connecting sheet, a temperature sensing probe and a signal collecting integrator. The utility model provides a mounting structure for replacing the traditional wire harness with a flexible circuit board, which is more convenient to mount and can detect the state of a battery cell.

Description

Multifunctional signal acquisition CCS device
Technical Field
The utility model relates to a signal acquisition device, in particular to a multifunctional signal acquisition CCS device.
Background
Most of CCS components on the market at present are formed by combining an insulating end plate, an aluminum row and a collection wire harness, wherein the aluminum row is arranged on the front surface of the insulating end plate, and the signal collection wire harness is arranged on the back surface of the insulating end plate. The nickel piece terminal is connected to the signal acquisition pencil, and the nickel piece terminal passes insulating end plate and is connected with openly, and the operation is complicated and loaded down with trivial details, leads to production efficiency lower.
This design is mainly giving up traditional signal acquisition pencil, and then uses FPC subassembly, has saved the complicated and loaded down with trivial details welding step of operation, can reduce the weight of battery package, improves space utilization to promote the energy density of battery package. The use of battery package pencil, mounting has been reduced relative to traditional scheme. The CCS is assembled inside the battery pack and used for collecting real-time voltage and temperature conditions of the battery cells of the module.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a multifunctional signal acquisition CCS device, which is used for solving the problems of complex and tedious installation operation in the prior art, and mainly relates to a signal acquisition device, and a method for replacing a traditional harness with an FPC assembly is provided.
The utility model provides a multifunctional signal acquisition integrated busbar (CCS) device, which comprises:
the support assembly comprises a cross beam, a plurality of connecting rods and a support body, wherein the cross beam is connected with the support body through the connecting rods, and a plurality of busbar mounting openings are formed among the cross beam, the support body and two adjacent connecting rods;
the bus bar assembly comprises an output bus bar, a plurality of inter-cell bus bars and a bridging bus bar, wherein each inter-cell bus bar is arranged on a plurality of bus bar mounting ports, each inter-cell bus bar is fixedly connected with the cross beam, and the bridging bus bar and the output bus bar are respectively arranged at the end parts of the bracket assembly.
The flexible circuit board assembly comprises a flexible circuit board, pressure collecting and connecting pieces, a temperature sensing probe and a signal collecting integrator, wherein the flexible circuit board is installed on the support assembly, the flexible circuit board is fixedly connected with the support assembly, the pressure collecting and connecting pieces are arranged on the flexible circuit board and correspond to the bus bars among the cells, the temperature sensing probe is connected with the flexible circuit board, and the signal collecting integrator is arranged at the end part of the flexible circuit board.
In one embodiment of the present utility model, the signal acquisition CCS device is mounted on a side of a battery cell, a plurality of signal acquisition CCS devices are connected through the cross-over bus, and the power generated by the battery cell is output through the output bus.
In one embodiment of the utility model, the positive and negative electrodes of adjacent battery cells (401) are opposite in orientation, and the inter-battery cell buses are respectively connected with the positive and negative electrodes of the adjacent battery cells, so that the battery cells are connected in series through the inter-battery cell buses; the inter-cell bus is provided with inter-cell protrusions between the cells, so that the creepage distance between adjacent cells is increased.
In one embodiment of the utility model, a hot-melt bolt column body is arranged on the cross beam, a hot-melt bolt hole is arranged on the inter-cell bus bar, and the inter-cell bus bar is fixedly connected with the cross beam through the hot-melt bolt of the hot-melt bolt column body and the hot-melt bolt hole; the hot-melt bolt hole is waist-shaped hole, the transverse width of hot-melt bolt hole is greater than the longitudinal length of hot-melt bolt hole.
In one embodiment of the utility model, a pole positioning hole is arranged on the inter-cell busbar, the pole positioning hole corresponds to a pole on the cell, and the pole positioning hole is welded with the pole; the middle part of the inter-cell bus bar in the pole positioning hole is of a concave structure, and a part of buffer space is reserved for the cell during expansion.
In one embodiment of the utility model, the bracket body is provided with an air outlet, the side edge of the battery cell is provided with an explosion-proof valve, and the air outlet is correspondingly arranged with the explosion-proof valve.
In one embodiment of the utility model, the flexible circuit board of the flexible circuit board assembly is a double sided board having a narrower width; the flexible circuit board is adhered with the bracket body through hot melt adhesive.
In one embodiment of the utility model, the voltage collecting connection piece and the bus bar between the battery cells are welded by laser, and the voltage collecting connection piece collects the voltage intensity of the battery cells.
In one embodiment of the utility model, the temperature sensing probe is arranged between the buses among the cells and is in contact with the cells, and the temperature of the cells is collected.
In one embodiment of the utility model, the signal acquisition integrator is fixedly arranged at the end part of the flexible circuit board assembly through an expansion rivet and is used for transmitting signals acquired by the pressure acquisition connecting sheet and the temperature sensing probe to external equipment through a low-voltage connecting wire bundle connected to the signal acquisition integrator.
The utility model provides a multifunctional signal acquisition CCS device which can enable a flexible circuit board to replace a traditional wire harness and enable installation to be more convenient.
Furthermore, the signal acquisition CCS device is provided with the pressure acquisition connecting sheet and the temperature sensing probe on the flexible circuit board, so that the voltage and the temperature of the battery cell can be acquired, and the safety of the device is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows an exploded view of a CCS device in one embodiment of the utility model;
FIG. 2 is a front view of the bus bar assembly mounted to a bracket assembly in one embodiment of the utility model;
FIG. 3 is a front view of a CCS device of the present utility model assembled in one embodiment;
FIG. 4 is a schematic perspective view of a CCS device according to an embodiment of the utility model;
fig. 5 is a perspective view of a battery cell assembly according to an embodiment of the utility model;
FIG. 6 is a perspective view of a CCS device according to one embodiment of the utility model after the CCS device is mounted to a cell assembly;
FIG. 7 is an enlarged view of a portion of a CCS device assembled in accordance with one embodiment of the present utility model.
Description of element numbers:
bracket assembly 100, beam 110, connecting rod 120, bracket body 130, hot melt pin column 111, air outlet 131, buss bar mounting port 140, buss bar assembly 200, output buss bar 210, inter-cell buss bar 220, jumper buss bar 230, hot melt pin hole 221, post positioning hole 222, inter-cell protrusion 223, buss bar change point 224, flexible circuit board assembly 300, positioning hole 301, pressure-collecting connection piece 302, temperature probe 303, signal integrator 304, expansion rivet 305, cell assembly 400, cell 401, explosion-proof valve 402, post 403.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.
It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Please refer to fig. 1 to 7. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
The utility model provides a multifunctional signal acquisition flexible circuit board (CCS) device which is used for replacing a traditional wire harness with a flexible circuit board so as to facilitate installation. Specifically, as shown in fig. 1, the multifunctional collecting CCS device of the present utility model includes: the bracket assembly 100 comprises a cross beam 110, a plurality of connecting rods 120 and a bracket body 130, wherein the cross beam 110 is connected with the bracket body 130 through the connecting rods 120, and a plurality of busbar mounting ports 140 are formed between the cross beam 110, the bracket body 130 and two adjacent connecting rods 120; the bus bar assembly 200, the bus bar assembly 200 includes an output bus bar 210, a plurality of inter-cell bus bars 220 and a bridging bus bar 230, each inter-cell bus bar 220 is mounted on a plurality of bus bar mounting openings 140, each inter-cell bus bar 220 is fixedly connected with the cross beam 110, and the bridging bus bar 230 and the output bus bar 210 are respectively mounted at the ends of the bracket assembly 100. The flexible circuit board assembly 300, the flexible circuit board assembly 300 includes flexible circuit board 301, adopts and presses the connection piece 302, temperature sensing probe 303 and signal acquisition integrator 304, and flexible circuit board 301 installs on support subassembly 100, and flexible circuit board 301 and support subassembly 100 fixed connection adopt and press the connection piece 302 to locate on flexible circuit board 301, correspond with every electric inter-cell busbar 220, temperature sensing probe 303 is connected with flexible circuit board 301, and signal acquisition integrator 304 locates the tip of flexible circuit board 301.
The advantage of replacing the traditional wire harness structure with the flexible circuit board 301 is that the flexible circuit board 301 is connected with the bus bar 220 between the battery cells by using the metal sheet while replacing weak current wires, and the fusing protection current design is added, so that the high-speed transmission route of information is ensured, and the internal design of the flexible circuit board can directly fuse the circuit copper wire even if a battery pack has a short circuit problem, so that the combustion or explosion of other parts of the battery pack is avoided. Compared with the traditional wire harness and PCB circuit board products for collecting signals, the flexible circuit board 301 occupies smaller space in the battery pack, is lighter in overall weight and contributes to the increase of the energy density of the battery pack. And compared with the traditional wire harness with a plurality of connection points and complicated manual connection links, the flexible circuit board 301 breaks through the limitation of process selection, and the product can be matched with the characteristics of the battery pack to perform various process selections such as ultrasonic wave, welding and the like. Meanwhile, the flexible circuit board 301 is regular in shape and higher in design integration level, a large number of redundant flat cable connection work can be omitted, the flexible circuit board is quite suitable for large-scale and mass production of machines, assembly working hours are greatly shortened, manpower is saved, and meanwhile, the flexible circuit board is highly likely to be used for automatic production of power battery assembly links.
As shown in fig. 2, a plurality of inter-cell bus bars 220 are mounted on the cross beam 110, the bracket body 130, and a plurality of bus bar mounting openings 140 formed between the adjacent two connection bars 120. The inter-cell busbar 220 is respectively provided with a hot-melt bolt hole 221, a pole positioning hole 222 and an inter-cell bulge 223, the hot-melt bolt hole 221 is arranged at the upper end of the inter-cell busbar 220, the pole positioning hole 222 is arranged below the hot-melt bolt hole 221, the inter-cell bulge 223 is arranged at the middle part of the transverse shaft of the inter-cell busbar 220, and the inter-cell bulge 223 extends to the upper end and the lower end of the inter-cell busbar 220 respectively. The hot-melt bolt hole 221 is a waist-shaped hole, and the transverse width is increased by 0.75-1mm compared with the longitudinal length, so that the phenomenon that normal welding cannot be performed due to errors generated during installation is prevented. The cross-over bus 230 and the output bus 210 are respectively arranged at the end parts of the CCS devices, and the cross-over bus 230 connects the inter-cell buses 220 between the two CCS devices so as to connect the cells connected by the two CCS devices in series; the output bus 210 is connected to the inter-cell bus 220 and the power device, respectively, for outputting the power of the cells. The output bus 210 and the crossover bus 230 may be flexibly used as desired. The bracket body 130 is arranged below the inter-cell bus bar 220, and the air outlet 131 is arranged on the bracket body 130.
Fig. 3 and 4 are schematic views of CCS at different viewing angles after assembly. The flexible circuit board 301 of the flexible circuit board assembly 300 is mounted on the bracket body 130 of the bracket assembly 100, and the flexible circuit board 301 and the bracket body 130 are fixedly connected through hot melt adhesive. The flexible circuit board 301 of the flexible circuit board assembly 300 is a double-sided board with a narrower width, which is different from a single-sided board used in the conventional technology, so that the flexible circuit board 301 can be prevented from blocking the air outlet hole 131 on the bracket body 130. The temperature sensing probe 303 is disposed between the inter-cell buses 220, one end of the temperature sensing probe is connected with the flexible circuit board 301, and the other end of the temperature sensing probe is in contact with the cells 401, so that temperature information between the cells can be collected. The signal acquisition integrator 304 is disposed at an end of the flexible circuit board 301, and is used for transmitting signals acquired by the pressure acquisition connection sheet 302 and the temperature sensing probe 303 to an external device through a low-voltage connection wire bundle connected to the signal acquisition integrator 304.
As shown in fig. 5, the cell assembly 400 includes a cell 401, an explosion-proof valve 402, and a post 403. The battery cells 401 are alternately arranged with positive and negative electrodes, and the electrode orientations between two adjacent battery cells 401 are different. The pole 403 is disposed above the battery cell 401 and corresponds to the pole positioning hole 222 on the inter-battery cell bus bar 220. The explosion-proof valve 402 is arranged below the battery core 401 and corresponds to the air outlet 131 on the bracket body 130.
As shown in fig. 6, the signal acquisition CCS device is mounted to the side of the cell assembly 400. The post positioning holes 222 on the inter-cell bus 220 correspond to the posts 403 of the cell assembly 400, and the posts 403 pass through and are welded to the post positioning holes 222. The explosion-proof valve 402 of the battery cell assembly 400 corresponds to the air outlet hole 131 of the bracket body 130, and the smooth air circulation of the explosion-proof valve 402 is ensured. The multifunctional signal CCS devices are installed on both sides of the cell assembly 400, and the inter-cell buses 220 of the multifunctional CCS devices on both sides are not simultaneously connected with the positive and negative electrodes of two adjacent cells. The purpose of this connection is to allow the inter-cell buss 220 to serve as a conductor connecting the cells 401, and to connect the cells 401 in the cell assembly 400 in series rather than in a loop. The series connected cells 401 form a larger series circuit with other cell assemblies 400 via the crossover bus 230 or output current to the consumer via the output bus 210. The temperature sensing probe 303 of the flexible circuit board assembly 300 is arranged between adjacent battery cells 401 and is in direct contact with the battery cells 401, so that the real-time temperature of the battery cells can be obtained. The inter-cell protrusions 223 of the inter-cell bus 220 are arranged between the adjacent cells 401, and are different from the straight structure in the prior art, the protrusion structure bends the distance between the two adjacent cells, so that the climbing point distance is increased, and the potential safety hazard is reduced.
As shown in fig. 7, the inter-cell bus 220 is further provided with a bus bar modification point 224. The busbar changing points 224 are respectively disposed at the upper end and the lower end of the post positioning hole 222, and respectively extend to the ends of the two lateral sides. In this embodiment, the thickness of the position between the bus bar changing points 224 is unchanged, and the thickness of the other parts is increased by 0.5mm, which is different from the original thickness of the inter-cell bus bar 220, so as to form a concave structure, so that the inter-cell bus bar 220 and the pole 403 are better positioned, and the current overflow is increased. The flexible circuit board assembly 300 further includes expansion rivets 305 for securing the signal acquisition integrator 304, which can eliminate the need for a holder for the connector therebetween, reducing costs and providing more secure attachment.
The utility model provides a multifunctional signal acquisition CCS device, which replaces the traditional wire harness with a flexible circuit board to perform voltage acquisition and other works on a battery cell, so that the device is more convenient and faster to install.
According to the utility model, the cells are connected in series through the bus bars among the cells, telecommunication electricity is output through the bridging bus bars and the output bus bars, the voltage and temperature information of the cells are collected through the pressure collecting connecting sheet and the temperature sensing probe which are arranged on the flexible circuit board, and the collected information is transmitted to the outside through the information collecting integrator 304.
Therefore, the multifunctional signal acquisition CCS device can achieve the effect of conveniently and simultaneously detecting the states of the battery cells.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. A multi-functional signal acquisition CCS device, comprising:
the support assembly (100), the support assembly (100) comprises a cross beam (110), a plurality of connecting rods (120) and a support body (130), the cross beam (110) is connected with the support body (130) through the connecting rods (120), and a plurality of busbar mounting openings (140) are formed among the cross beam (110), the support body (130) and two adjacent connecting rods (120);
the bus bar assembly (200), the bus bar assembly (200) comprises an output bus bar (210), a plurality of inter-cell bus bars (220) and a bridging bus bar (230), each inter-cell bus bar (220) is installed on a plurality of bus bar installation ports (140), each inter-cell bus bar (220) is fixedly connected with the cross beam (110), and the bridging bus bar (230) and the output bus bar (210) are respectively installed at the end parts of the bracket assembly (100);
the flexible circuit board assembly (300), flexible circuit board assembly (300) include flexible circuit board (301), adopt and press connection piece (302), temperature sensing probe (303) and signal acquisition integrator (304), flexible circuit board (301) install in on support subassembly (100), flexible circuit board (301) with support subassembly (100) fixed connection, adopt and press connection piece (302) to locate on flexible circuit board (301), with every busbar (220) between the electric core corresponds, temperature sensing probe (303) with flexible circuit board (301) are connected, signal acquisition integrator (304) are located the tip of flexible circuit board (301).
2. The multifunctional signal acquisition CCS device according to claim 1, characterized in that said signal acquisition CCS device is mounted on a side of a battery (401), a plurality of said signal acquisition CCS devices are connected by said jumper bus (230), and the electric power generated by said battery (401) is output by said output bus (210).
3. The multifunctional signal acquisition CCS device according to claim 2, characterized in that the positive and negative poles of adjacent cells (401) are opposite, said inter-cell bus bars (220) respectively connect the positive and negative poles of adjacent cells (401), such that said cells (401) are connected in series by said inter-cell bus bars (220); the inter-cell bus bar (220) is provided with inter-cell protrusions (223) between the cells (401), so that the creepage distance between adjacent cells (401) is increased.
4. A multifunctional signal acquisition CCS device according to claim 3, wherein said cross beam (110) is provided with a hot-melt pin column (111), said inter-cell bus bar (220) is provided with a hot-melt pin hole (221), said inter-cell bus bar (220) is fixedly connected with said cross beam (110) by hot-melt pins of said hot-melt pin column (111) and said hot-melt pin hole (221); the hot-melt bolt hole (221) is a waist-shaped hole, and the transverse width of the hot-melt bolt hole (221) is larger than the longitudinal length of the hot-melt bolt hole (221).
5. The multifunctional signal acquisition CCS device according to claim 4, characterized in that a post positioning hole (222) is provided on said inter-cell busbar (220), said post positioning hole (222) corresponds to a post (403) on said cell (401), said post positioning hole (222) is welded with said post (403); the middle part of the inter-cell bus bar (220) in the pole positioning hole (222) is of a concave structure, and a part of buffer space is reserved for the cell (401) during expansion.
6. The multifunctional signal acquisition CCS device according to claim 1, wherein an air outlet hole (131) is formed in the bracket body (130), an explosion-proof valve (402) is arranged at a side edge of the battery cell (401), and the air outlet hole (131) is arranged corresponding to the explosion-proof valve (402).
7. The multifunctional signal acquisition CCS device according to claim 1, characterized in that said flexible circuit board (301) of said flexible circuit board assembly (300) is a double-sided board of narrower width; the flexible circuit board (301) is adhered to the bracket body (130) through hot melt adhesive.
8. The multifunctional signal acquisition CCS device according to claim 1, characterized in that said voltage acquisition connection pad (302) and said inter-cell buss (220) are welded by laser, said voltage acquisition connection pad (302) acquiring the voltage strength of said cell (401).
9. The multifunctional signal acquisition CCS device according to claim 8, wherein said temperature sensing probe (303) is disposed between said inter-cell buses (220) and contacts said cell (401), and acquires the temperature of said cell (401).
10. The multifunctional signal acquisition CCS device according to claim 9, wherein said signal acquisition integrator (304) is fixedly mounted to an end of said flexible circuit board assembly (300) by means of expansion rivets (305) for transmitting signals acquired by said pressure acquisition connection pads (302) and said temperature sensing probes (303) to an external device via low voltage connection wires connected to said signal acquisition integrator (304).
CN202320272154.0U 2023-02-21 2023-02-21 Multifunctional signal acquisition CCS device Active CN219268077U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320272154.0U CN219268077U (en) 2023-02-21 2023-02-21 Multifunctional signal acquisition CCS device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320272154.0U CN219268077U (en) 2023-02-21 2023-02-21 Multifunctional signal acquisition CCS device

Publications (1)

Publication Number Publication Date
CN219268077U true CN219268077U (en) 2023-06-27

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Country Status (1)

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CN (1) CN219268077U (en)

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